Air conditioner indoor unit and air conditioner with same

Abstract

The utility model discloses an indoor unit of air conditioner and air conditioner with it, the indoor unit of air conditioner includes: casing and first air deflector, and the front panel of casing is equipped with air outlet grille, and the bottom wall of casing is equipped with bottom air outlet, the first air deflector is rotatablely arranged in the casing to open or block bottom air outlet, when the first air deflector blocks bottom air outlet, the front end of first air deflector cooperates with the lower end of air outlet grille, and the first air deflector rotates to open bottom air outlet in the direction away from air outlet grille. According to the indoor unit of air conditioner of the utility model embodiment, the air outlet grille and / or bottom air outlet can be selected to blow air, and the air outlet range in the up and down direction is increased, so that the air outlet heat exchange effect of the indoor unit of air conditioner can be improved, and there is no shielding structure between the air outlet grille and bottom air outlet, so that the air outlet area can be increased, which is beneficial to improve the air volume, can improve the fluency of airflow flow, is beneficial to reduce airflow noise, and can further improve the air outlet heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment, and in particular to an indoor air conditioning unit and an air conditioner having the same. Background Technology

[0002] In related technologies, the air outlet of the wall-mounted air conditioner faces forward. However, due to the limitations of the upper and lower walls of the air outlet, even if the air outlet of the wall-mounted air conditioner is equipped with a guide vane, the upward swing or downward pressure effect of the guide vane is not good. The air outlet range of the wall-mounted air conditioner is limited, which affects the air outlet heat exchange effect of the wall-mounted air conditioner and there is room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an indoor air conditioning unit with an increased air outlet range, which improves the heat exchange effect.

[0004] This utility model also proposes an air conditioner having the above-mentioned indoor air conditioning unit.

[0005] An indoor air conditioning unit according to a first aspect of the present invention includes: a housing, wherein the front panel of the housing is provided with an air outlet grille, and the bottom wall of the housing is provided with a bottom air outlet; and a first air guide plate, wherein the first air guide plate is rotatably disposed on the housing to open or block the bottom air outlet, wherein when the first air guide plate blocks the bottom air outlet, the front end of the first air guide plate engages with the lower end of the air outlet grille, and the first air guide plate rotates in a direction away from the air outlet grille to open the bottom air outlet.

[0006] According to the embodiments of this utility model, the indoor unit of the air conditioner can selectively discharge air through an air outlet grille and / or a bottom air outlet, thereby increasing the air outlet range in the vertical direction and improving the heat exchange effect of the indoor unit. Furthermore, there is no obstruction structure between the air outlet grille and the bottom air outlet at the two air outlets of the indoor unit, which increases the air outlet area and helps to increase the air volume. It also improves the turbulence and airflow loss caused by airflow obstruction at the structure between the air outlet grille and the bottom air outlet, thereby improving the smoothness of airflow, reducing airflow noise, and further enhancing the heat exchange effect of the indoor unit.

[0007] In some embodiments, the indoor unit of the air conditioner further includes a second air guide plate, which is disposed inside the housing and is rotatable to direct airflow to the air outlet grille and / or the bottom air outlet.

[0008] In some embodiments, the indoor unit of the air conditioner has a first mode in which the air outlet of the first air guide plate faces downward to open the bottom air outlet, and the second air guide plate blocks the air outlet grille.

[0009] In some embodiments, in the first mode, the surface of the second air guide plate facing the first air guide plate is formed as an arc-shaped first air guide surface.

[0010] In some embodiments, in the first mode, the lower end of the second air guide plate extends beyond the lower end of the air outlet grille.

[0011] In some embodiments, the indoor unit of the air conditioner has a second mode, in which the first air guide plate blocks the bottom air outlet, and the air outlet end of the second air guide plate faces the air outlet grille to guide air towards the air outlet grille.

[0012] In some embodiments, in the second mode, a gap is provided between the top surface of the first air guide plate and the bottom wall of the air outlet grille.

[0013] In some embodiments, the air outlet end of the first air guide plate is provided with a groove, and the groove is located on the front side of the gap.

[0014] In some embodiments, the inner wall of the groove is formed as an arcuate surface.

[0015] In some embodiments, the minimum value of the gap in the height direction is H, where 0 < H ≤ 20 mm.

[0016] In some embodiments, the indoor unit of the air conditioner has a third mode, in which the air outlet end of the first air guide plate is arranged facing forward and downward to define an air outlet space space with a distance from the lower end of the air outlet grille, and the air outlet end of the second air guide plate is arranged facing forward and upward to guide air towards the air outlet grille.

[0017] In some embodiments, the indoor unit of the air conditioner has a fourth mode, in which the air outlet ends of the first air guide plate and the second air guide plate are both arranged facing forward and downward, and the air outlet grille and the bottom air outlet both emit air.

[0018] In some embodiments, the second air guide plate has a hollowed-out area.

[0019] In some embodiments, the hollowed-out area includes a plurality of hollowed-out holes, which are arranged in multiple rows in the width direction of the second air guide plate, and each row includes a plurality of hollowed-out holes spaced apart along the length direction of the second air guide plate.

[0020] In some embodiments, the indoor unit of the air conditioner has a fifth mode. In the fifth mode, the air outlet end of the first air guide plate is arranged downward, the second air guide plate partially blocks the bottom air outlet, and the second air guide plate and the first air guide plate are spaced apart to define an air outlet channel. Air outlet channels, the hollow area, and the air outlet grille all emit air.

[0021] In some embodiments, on the same cross-section of the second air guide plate, the line connecting the two ends of the second air guide plate is the first connecting line, the line perpendicular to the first connecting line is the first perpendicular line, and the extension line of the central axis of each of the hollow holes intersects the first perpendicular line at an angle of a1, wherein -60°≤a1≤60°.

[0022] In some embodiments, the air vent grille includes a horizontally extending first spoke and a vertically extending second spoke, the first spoke and the second spoke intersecting each other.

[0023] In some embodiments, the lower surface of the first spoke is formed as a second air guide surface that extends forward and upward at an angle.

[0024] In some embodiments, the angle between the second air guide surface and the horizontal plane is a2, where 0°<a2≤30°.

[0025] In some embodiments, the air vent grille and the front panel are an integral piece; or the air vent grille and the front panel are separate pieces.

[0026] In some embodiments, the area of ​​the front surface of the air vent grille is S1, and the total area of ​​the front surface of the front panel and the front surface of the air vent grille is S2, wherein the value of S1 / S2 ranges from 1 / 4 to 1 / 2.

[0027] In some embodiments, the opening area of ​​the bottom air outlet is S3, and the area of ​​the bottom wall of the casing is S4, wherein the value of S3 / S4 ranges from 1 / 4 to 2 / 3.

[0028] An air conditioner according to a second aspect of the present invention includes an indoor unit according to a first aspect of the present invention.

[0029] According to the embodiments of the present invention, by setting the air conditioner indoor unit as described in the first aspect, the air supply and heat exchange effect of the air conditioner can be improved, thereby improving the working efficiency of the air conditioner.

[0030] 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

[0031] 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 structural schematic diagram of an air conditioner indoor unit according to some embodiments of the present utility model; Figure 2 This is a schematic diagram of the structure of an air conditioner indoor unit in a first mode according to some embodiments of the present invention; Figure 3 This is a cross-sectional view of the indoor unit of an air conditioner in a first mode according to some embodiments of the present utility model; Figure 4 This is a cross-sectional view of the indoor unit of an air conditioner in a second mode according to some embodiments of the present invention; Figure 5 It is based on Figure 4 A magnified view of region A in the example shown; Figure 6 This is a cross-sectional view of the indoor unit of an air conditioner in a third mode according to some embodiments of the present utility model; Figure 7 This is a front view of the indoor unit of an air conditioner in the fourth mode according to some embodiments of the present invention; Figure 8 It is based on Figure 7 The example shown is a BB cross-sectional view; Figure 9 It is based on Figure 8 A magnified view of region C in the example shown; Figure 10 It is based on Figure 7 A magnified view of region D in the example shown; Figure 11 This is a structural schematic diagram of an air conditioner indoor unit in the fifth mode according to some embodiments of the present invention; Figure 12 This is a cross-sectional view of the indoor unit of an air conditioner in the fifth mode according to some embodiments of the present invention; Figure 13 This is a cross-sectional view of the second air guide plate according to some embodiments of the present utility model; Figure 14 This is a cross-sectional view of the air outlet grille according to some embodiments of the present utility model; Figure 15 This is a structural schematic diagram of the air outlet grille according to some embodiments of the present utility model; Figure 16 This is another structural schematic diagram of the air outlet grille according to some embodiments of the present utility model.

[0032] Figure label: Air conditioner indoor unit 100; Casing 1; Front panel 11; Bottom air outlet 12; Bottom wall 13; Frame 14; Air outlet grille 15; First spoke 151; Second air guide surface 151a; Guide surface 151b; End spoke 1511; First inclined surface 15111; Second inclined surface 15112; Air outlet plane 15113; Second connecting line 15114; Air guide protrusion 1512; Second spoke 152; Decorative area 15a; Decorative panel 153; Decorative rib 154; Air outlet channel 16; Air outlet area 15b; Frame 16; Guide section 161; First air guide plate 2; gap 21; groove 22; air outlet end 2a of the first air guide plate; Second air guide plate 3; air outlet end 3a of the second air guide plate; first air guide surface 31; hollow area 3b; hollow hole 32; first connecting line L1; first vertical line L2; extension line L3 of the central axis of the hollow hole; Air outlet space 41; Air outlet duct 42; Ventilation and heat exchange components 5; impeller 51; heat exchanger 52; volute 53; upper end wall 531; lower end wall 532; air guide channel 533. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following description refers to an air conditioner indoor unit 100 according to a first aspect of the present invention.

[0036] According to an embodiment of the present utility model, the indoor unit 100 of the air conditioner is as follows: Figures 1-4 As shown, the indoor unit 100 of the air conditioner includes: a housing 1 and a first air guide plate 2. The front panel 11 of the housing 1 is provided with an air outlet grille 15, and the bottom wall 13 of the housing 1 is provided with a bottom air outlet 12. The first air guide plate 2 is rotatably disposed on the housing 1 to open or block the bottom air outlet 12. When the first air guide plate 2 blocks the bottom air outlet 12, the front end of the first air guide plate 2 cooperates with the lower end of the air outlet grille 15, and the first air guide plate 2 rotates in a direction away from the air outlet grille 15 to open the bottom air outlet 12.

[0037] The housing 1 is the outline of the indoor unit 100 of the air conditioner. The front panel 11 of the housing 1 is provided with an air outlet grille 15, and the bottom wall 13 of the housing 1 is provided with a bottom air outlet 12. Thus, the indoor unit 100 of the air conditioner can selectively discharge air through the air outlet grille 15 or through the bottom air outlet 12, thereby increasing the air discharge range of the indoor unit 100 of the air conditioner. The air discharge mode can also be selected according to the working mode of the indoor unit 100 of the air conditioner, thereby improving the air discharge heat exchange effect of the indoor unit 100 of the air conditioner.

[0038] For example, when the indoor unit 100 of the air conditioner is heating, it can directly discharge air from the bottom air outlet 12, pressing the hot air downwards. This solves the problem of poor downward airflow effect in traditional wall-mounted air conditioners, allowing the hot air to rise from the bottom after being blown to the ground, thus improving the situation where hot air accumulates at the top and causes cold air at the bottom, and enhancing the heating effect. As another example, when the indoor unit 100 of the air conditioner is cooling, it can discharge air through both the bottom air outlet 12 and the air outlet grille 15, which can increase the coverage of cold air and improve cooling efficiency.

[0039] Furthermore, the indoor unit 100 of the air conditioner is also equipped with a first air guide plate 2, which is connected to the casing 1 and can rotate relative to the casing 1. The first air guide plate 2 can be used to open or block the bottom air outlet 12. When the first air guide plate 2 opens the bottom air outlet 12, the indoor unit 100 of the air conditioner can exhaust air through the bottom air outlet 12. When the first air guide plate 2 blocks the bottom air outlet 12, no air will be exhausted from the bottom air outlet 12, thus isolating the interior of the indoor unit 100 from the external environment and maintaining the cleanliness of the interior of the indoor unit 100. In addition, when the first air guide plate 2 opens the bottom air outlet 12, it can also guide the air exhaust from the bottom air outlet 12, which can further improve the air exhaust effect of the indoor unit 100 of the air conditioner.

[0040] Furthermore, in this embodiment of the utility model, the lower end of the air outlet grille 15 participates in defining the bottom air outlet 12. When the first air guide plate 2 blocks the bottom air outlet 12, the front end of the first air guide plate 2 directly cooperates with the lower end of the air outlet grille 15 to block the bottom air outlet 12.

[0041] In this way, there is no obstruction structure between the air outlet grille 15 and the bottom air outlet 12 at the two air outlets of the indoor unit 100. Compared with the design that uses structural components to separate the air outlet grille and the bottom air outlet, this utility model can increase the air outlet area of ​​the indoor unit 100, thereby improving the air volume. Furthermore, when the air outlet grille 15 and the bottom air outlet 12 are discharging air simultaneously, the airflow can flow smoothly to the air outlet grille 15 and the bottom air outlet 12, which can improve the turbulence and airflow loss caused by the obstruction of airflow at the structure between the air outlet grille 15 and the bottom air outlet 12, thereby improving the smoothness of airflow, reducing airflow noise, and improving the heat exchange effect of the indoor unit 100.

[0042] According to an embodiment of the present invention, the indoor unit 100 of the air conditioner can selectively discharge air through the air outlet grille 15 and / or the bottom air outlet 12, thereby increasing the air outlet range of the indoor unit in the vertical direction and improving the heat exchange effect of the air conditioner indoor unit 100. Furthermore, there is no obstruction structure between the air outlet grille 15 and the bottom air outlet 12 at the two air outlets of the indoor unit 100, which increases the air outlet area and helps to increase the air volume; it also improves the turbulence and airflow loss caused by the obstruction of airflow at the structure between the air outlet grille 15 and the bottom air outlet 12, thereby improving the smoothness of airflow, reducing airflow noise, and further improving the heat exchange effect of the air conditioner indoor unit 100.

[0043] In some embodiments of this utility model, the first air guide plate 2 can be a solid plate, and the first air guide plate 2 has strong structural stability and is not easily deformed.

[0044] In some other embodiments of this utility model, the first air guide plate 2 can be a hollow plate, which makes the first air guide plate 2 lighter and easier to rotate, and the air guiding motion is more flexible.

[0045] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the indoor unit 100 of the air conditioner also includes a second air guide plate 3, which is disposed inside the housing 1. The second air guide plate 3 is rotatable to guide the airflow to the air outlet grille 15 and / or the bottom air outlet 12.

[0046] The second air guide plate 3 rotates to guide the air, and the rotational motion of the second air guide plate 3 is more stable. Furthermore, the drive structure that drives the rotation of the second air guide plate 3 has a lower structural complexity, which helps to reduce manufacturing costs.

[0047] The second air guide plate 3 rotates to direct airflow towards the air outlet grille 15 and / or the bottom air outlet 12, which can improve the smoothness of airflow and enhance the heat exchange effect of the air conditioner indoor unit 100. Not limited to this, the second air guide plate 3 can also rotate to block the air outlet grille 15 as described below, effectively opening and closing the air outlet grille 15, thereby enabling the air conditioner indoor unit 100 to achieve multiple air supply modes.

[0048] It is worth noting that the second air guide plate 3 can be a solid plate or a structure with a hollow area 3b as described below, which can be selected according to actual needs.

[0049] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the indoor unit 100 of the air conditioner has a first mode. In the first mode, the air outlet 2a of the first air guide plate 2 faces downward to open the bottom air outlet 12, and the second air guide plate 3 blocks the air outlet grille 15.

[0050] The first air guide plate 2 rotates downwards at its outlet end 2a to open the bottom air outlet 12, allowing airflow to exit from the bottom air outlet 12. The second air guide plate 3 rotates to block the air outlet grille 15, preventing airflow from exiting from the air outlet grille 15. As a result, the indoor unit 100 of the air conditioner mainly exits air through the bottom air outlet 12, guiding the airflow downwards, and resulting in a larger outflowing air volume.

[0051] In the first mode, the indoor unit 100 of the air conditioner is suitable for heating. The second air guide plate 3 blocks the air outlet grille 15, and the first air guide plate 2 opens the bottom air outlet 12. The air outlet end 2a of the first air guide plate 2 opens downward to guide the airflow downward, which can push the hot air downward. This effectively achieves the effect of blowing the heating airflow downward, which solves the problem of poor downward airflow effect of traditional wall-mounted air conditioners. It allows the hot air to rise from the bottom after being blown to the ground, which improves the situation of hot air gathering at the top and causing the bottom to be cold, thus improving the heating effect.

[0052] In some embodiments of this utility model, the first mode of the air conditioner indoor unit 100 is the heating mode.

[0053] In some embodiments of this utility model, such as Figure 3 As shown, in the first mode, the surface of the second air guide plate 3 facing the first air guide plate 2 is formed as an arc-shaped first air guide surface 31.

[0054] The second air guide plate 3 not only blocks the air outlet grille 15, but also guides the airflow. Figure 3 As shown, the dashed line with arrows indicates the direction of airflow. The first air guide plate 2 of the second air guide plate 3 helps to guide the airflow to the bottom air outlet 12, which can reduce the airflow loss caused by the airflow directly impacting the second air guide plate 3.

[0055] In some embodiments of this utility model, such as Figure 3 As shown, in the first mode, the lower end of the second air guide plate 3 extends beyond the lower end of the air outlet grille 15.

[0056] The lower end of the second air guide plate 3 extends beyond the lower end of the air outlet grille 15. The second air guide plate 3 completely blocks the air outlet grille 15, which can reduce the leakage of airflow from the air outlet grille 15. In addition, the guide dimension of the second air guide plate 3 is relatively long, which is conducive to guiding the airflow to the bottom air outlet 12.

[0057] In some embodiments of this utility model, such as Figure 4 As shown, the indoor unit 100 of the air conditioner has a second mode. In the second mode, the first air guide plate 2 blocks the bottom air outlet 12, and the air outlet end 3a of the second air guide plate 3 faces the air outlet grille 15 to guide the air towards the air outlet grille 15.

[0058] The first air guide plate 2 blocks the bottom air outlet 12, so the bottom air outlet 12 does not produce air. The air outlet end 3a of the second air guide plate 3 extends towards the air outlet grille 15 to guide the air. The indoor unit 100 of the air conditioner completely exits through the air outlet grille 15, and the airflow is sent forward. The airflow in the forward direction is relatively large.

[0059] In the second mode, the indoor unit 100 of the air conditioner is suitable for cooling. The first air guide plate 2 blocks the bottom air outlet 12 to prevent cold air from blowing directly down onto the human body, thereby improving the discomfort caused by cold air blowing directly on the body. Furthermore, the second air guide plate 3 sends the cold air forward from the air outlet grille 15, which can increase the air delivery distance of the cold air in the front-to-back direction and increase the coverage of the cold air.

[0060] In some embodiments of this utility model, the second mode of the air conditioner indoor unit 100 is the anti-cold air direct blowing mode.

[0061] In some embodiments of this utility model, such as Figure 5As shown, in the second mode, a gap 21 is provided between the top surface of the first air guide plate 2 and the bottom wall 13 of the air outlet grille 15.

[0062] In the second mode, the top front surface of the first air guide plate 2 is located below the air outlet grille 15, and the first air guide plate 2 does not completely seal the bottom air outlet 12 by contacting the air outlet grille 15, but leaves a gap 21 between the top surface of the first air guide plate 2 and the bottom wall 13 of the air outlet grille 15.

[0063] When the indoor unit of the air conditioner blows cold air, the cold air tends to accumulate in the area between the bottom of the air outlet grille and the top surface of the first air guide plate for a long time. Due to the large temperature difference, condensation is likely to occur. However, by providing a gap 21 between the top surface of the first air guide plate 2 and the bottom wall 13 of the air outlet grille 15, the cold air can flow out through the gap 21, thus reducing the accumulation of cold air and improving the situation where condensation accumulates at the bottom of the air outlet grille 15.

[0064] In some embodiments of this utility model, when the indoor unit 100 of the air conditioner is in the off state, the first air guide plate 2 closes the bottom air outlet 12. At this time, the top surface of the first air guide plate 2 abuts against the bottom wall 13 of the air outlet grille 15, thereby sealing the bottom air outlet 12 and reducing the entry of external dust, water and other pollutants into the indoor unit 100 of the air conditioner.

[0065] In some embodiments of this utility model, such as Figure 5 As shown, the air outlet end 2a of the first air guide plate 2 is provided with a groove 22, which is located in front of the gap 21.

[0066] The air outlet end 2a of the first air guide plate 2 is provided with a groove 22. The groove 22 located in front of the gap 21 is connected to the gap 21. In this way, an flared shape is formed along the airflow direction, which is conducive to the rapid discharge of airflow from the gap 21. This can further reduce the accumulation of cold air and further reduce the occurrence of condensation accumulation at the bottom of the air outlet grille 15.

[0067] Furthermore, by setting the groove 22, when the indoor unit 100 of the air conditioner emits hot air, the airflow can be directed out from the gap 21. The flared shape formed by the gap 21 and the groove 22 can reduce the backflow of hot air, thereby improving the airflow smoothness of the indoor unit 100 of the air conditioner.

[0068] In some embodiments of this utility model, such as Figure 5 As shown, the inner wall of the groove 22 is formed as an arc-shaped surface.

[0069] The curved surface has a better guiding effect on the airflow, which can improve the turbulence caused by the airflow impacting the inner wall of the groove 22, thereby improving the smoothness of the airflow.

[0070] In some embodiments of this utility model, such as Figure 5As shown, in the height direction, the minimum value of the gap 21 is H, where 0 < H ≤ 20 mm.

[0071] When the gap 21 between the top surface of the first air guide plate 2 and the bottom wall 13 of the air outlet grille 15 is too large, the airflow from the gap 21 increases, and a large amount of airflow flows through the top surface of the first air guide plate 2, causing the first air guide plate 2 to shake under the impact of the airflow, which easily generates noise.

[0072] Therefore, setting the minimum value H of the gap 21 between the top surface of the first air guide plate 2 and the bottom wall 13 of the air outlet grille 15 to less than or equal to 20mm is optimal. This allows airflow to pass through the gap 21 and reduces the impact of airflow on the first air guide plate 2, which is beneficial for reducing airflow noise.

[0073] In some embodiments of this utility model, such as Figure 6 As shown, the indoor unit 100 of the air conditioner has a third mode. In the third mode, the air outlet end 2a of the first air guide plate 2 is arranged facing forward and downward to limit the air outlet space 41 at a distance from the lower end of the air outlet grille 15, and the air outlet end 3a of the second air guide plate 3 is arranged facing forward and upward to guide the air towards the air outlet grille 15.

[0074] The first air guide plate 2 opens the bottom air outlet 12. The air outlet end 2a of the first air guide plate 2 is inclined forward and downward, thereby defining an air outlet space 41 between the air outlet end 2a of the first air guide plate 2 and the air outlet grille 15. The airflow flows out through the air outlet space 41. The area of ​​the air outlet space 41 is smaller than the area of ​​the bottom air outlet 12, and part of the space of the bottom air outlet 12 overlaps with part of the space of the air outlet space 41. The air outlet end 3a of the second air guide plate 3 is inclined forward and upward to extend towards the air outlet grille 15 for air guidance, and the airflow also flows out through the air outlet grille 15.

[0075] The air outlet of the indoor unit 100 of the air conditioner is divided into two streams. One stream flows out from above the second air guide plate 3 through the air outlet grille 15, and the other stream flows out from between the second air guide plate 3 and the first air guide plate 2 through the air outlet space 41 and the air outlet grille 15. The two air streams can also help each other, so that the air is transported to a longer distance and the air supply range of the indoor unit 100 of the air conditioner is increased.

[0076] When the indoor unit 100 of the air conditioner is in the third mode, it is suitable for cooling. The first air guide plate 2 opens downward at a small angle, and the second air guide plate 3 tilts upward at a small angle. The two airflows help each other, which can achieve the effect of wind over a longer distance, while also obtaining a better anti-cold wind effect, improving the problem of cold air blowing directly downward on the human body, and more effectively avoiding the problem of cold air sinking too quickly, thus improving the cooling effect.

[0077] In some embodiments of this utility model, the third mode of the air conditioner indoor unit 100 is a long-distance air supply mode.

[0078] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the indoor unit 100 of the air conditioner includes a ventilation and heat exchange component 5, which includes a fan wheel 51 and a heat exchanger 52. The fan wheel 51 is used to drive external airflow into the indoor unit 100 of the air conditioner. After the airflow passes through the heat exchanger 52 for heat exchange, it flows out under the drive of the fan wheel 51.

[0079] The ventilation and heat exchange component 5 also includes a volute 53, which is used to smoothly guide the airflow delivered from the impeller 51. The volute 53 includes an upper end wall 531 and a lower end wall 532 arranged in the vertical direction. The upper end wall 531 has a volute tongue, and the lower end wall 532 is constructed as an arc-shaped wall. Figure 6 As shown, in the third mode, the first air guide plate 2 is tilted downwards and the tilting direction of the first air guide plate 2 is consistent with the end extension direction of the lower end wall 532.

[0080] like Figure 6 As shown, the air outlet of the indoor unit 100 of the air conditioner is divided into two streams. The dotted lines with arrows indicate the direction of airflow. One stream flows from between the upper end wall 531 and the second air guide plate 3, and the airflow is guided forward and slightly upward. The other stream flows smoothly through the lower end wall 532 to the first air guide plate 2, and flows from between the second air guide plate 3 and the first air guide plate 2. The airflow is guided forward. Moreover, these two airflows can also help each other, so that the airflow is delivered to a longer distance, thereby increasing the air supply range of the indoor unit 100 of the air conditioner.

[0081] In some embodiments of this utility model, the lower end wall 532 defines a rotation channel at its end. The rotation channel is recessed in a direction away from the first air guide plate 2. By setting the rotation channel, the rotation of the first air guide plate 2 can be avoided, reducing motion interference and improving the rotational stability of the first air guide plate 2.

[0082] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the indoor unit 100 of the air conditioner has a fourth mode. In the fourth mode, the air outlet 2a of the first air guide plate 2 and the air outlet 3a of the second air guide plate 3 are both arranged facing forward and downward, and the air outlet grille 15 and the bottom air outlet 12 both emit air.

[0083] The first air guide plate 2 opens the bottom air outlet 12, and the air outlet end 3a of the second air guide plate 3 is inclined towards the front end and the bottom end. The second air guide plate 3 opens the air outlet grille 15, and the airflow flows out through the bottom air outlet 12 and the air outlet grille 15 at the same time.

[0084] The air outlet 2a of the first air guide plate 2 and the air outlet 3a of the second air guide plate 3 are both set facing forward and downward. The first air guide plate 2 opens the bottom air outlet 12 to a large extent, and air is discharged from both the air outlet grille 15 and the bottom air outlet 12, thereby increasing the air outlet area of ​​the air conditioner indoor unit 100 and achieving a wide-angle air outlet effect.

[0085] When the indoor unit 100 of the air conditioner is in the fourth mode, it is suitable for cooling. The first air guide plate 2 opens downward and the second air guide plate 3 tilts downward to guide the air, which can achieve a wide-angle air outlet effect. The air outlet area is greatly improved compared with the traditional air outlet, which improves the comfort of cooling and air supply and the air supply angle.

[0086] In some embodiments of this utility model, the fourth mode of the air conditioner indoor unit 100 is the cooling and air supply mode.

[0087] In some embodiments of this utility model, such as Figure 9 As shown, the second air guide plate 3 has a hollow area 3b.

[0088] The second air guide plate 3 has a hollow area 3b, through which airflow can pass through the hollow area 3b and pass through the second air guide plate 3, thereby reducing the obstruction of airflow and helping to improve the air outlet range of the air conditioner indoor unit 100.

[0089] like Figure 6 As shown, when the indoor unit 100 of the air conditioner is in the third mode, the air outlet end 3a of the second air guide plate 3 is set facing forward and upward, and the surface of the second air guide plate 3 is partially opposite to the air outlet space 41 in the direction of airflow. By forming a hollow area 3b on the second air guide plate 3, the airflow can flow through the hollow area 3b through the second air guide plate 3 to the air outlet space 41, thereby reducing the obstruction of the airflow by the second air guide plate 3 and improving the air volume of the indoor unit 100 of the air conditioner.

[0090] In some embodiments of this utility model, such as Figure 9 and Figure 10 As shown, the hollow area 3b includes multiple hollow holes 32, which are arranged in multiple rows in the width direction of the second air guide plate 3. Each row includes multiple hollow holes 32 spaced apart along the length direction of the second air guide plate 3.

[0091] The hollow area 3b includes multiple hollow holes 32. The hollow holes 32 include multiple rows arranged along the width direction of the second air guide plate 3. Each row of hollow holes 32 includes multiple hollow holes 32 arranged along the length direction of the second air guide plate 3. The hollow holes 32 are arranged in an array, and the number of hollow holes 32 is large and the arrangement is dense, which facilitates the passage of airflow.

[0092] Furthermore, by arranging multiple perforated holes 32 in the perforated area 3b, the airflow is dispersed into smaller streams as it passes through the perforated area 3b, reducing the impact of direct airflow and thus achieving low-wind-feel air delivery. For example, in the first mode of the air conditioner indoor unit 100, the second air guide plate 3 blocks the air outlet grille 15, allowing smaller streams of air to exit through the perforated holes 32 from the air outlet grille 15, thereby increasing the airflow diffusion speed and reducing the impact of direct airflow.

[0093] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, the indoor unit 100 of the air conditioner has a fifth mode. In the fifth mode, the air outlet 2a of the first air guide plate 2 is set downward, the second air guide plate 3 blocks part of the bottom air outlet 12, and the second air guide plate 3 and the first air guide plate 2 are spaced apart to define the air outlet channel 42. The air outlet channel 42, the hollow area 3b and the air outlet grille 15 all emit air.

[0094] The first air guide plate 2 has its air outlet end 2a facing downwards. The first air guide plate 2 opens the bottom air outlet 12 to a larger extent. The second air guide plate 3 partially blocks the bottom air outlet 12. An air outlet channel 42 is defined between the first air guide plate 2 and the second air guide plate 3. The second air guide plate 3 opens the air outlet grille 15, and a hollow area 3b is formed on the second air guide plate 3. Therefore, air outlets are emitted from the air outlet channel 42, the hollow area 3b, and the air outlet grille 15. The air outlet channel 42 and the hollow area 3b on the second air guide plate 3 basically cover the area of ​​the bottom air outlet 12, thereby increasing the air outlet area of ​​the indoor unit 100 of the air conditioner.

[0095] The air outlet of the indoor unit 100 of the air conditioner is divided into three streams. One stream blows forward from the upper side of the second air guide plate 3 through the air outlet grille 15, another stream blows forward and downward along the hollow area 3b on the second air guide plate 3, and the third stream flows out downward from the air outlet channel 42. The airflow diffuses and flows, covering a large area.

[0096] In the fifth mode, the indoor unit 100 can be used for both cooling and heating. The indoor unit 100 has the largest air outlet area, which can improve the coverage of the airflow, thus enabling rapid cooling or heating.

[0097] In some embodiments of this utility model, the fifth mode of the indoor unit 100 of the air conditioner is the full air outlet mode.

[0098] In some embodiments of this utility model, such as Figure 13 As shown, on the same cross section of the second air guide plate 3, the line connecting the two ends of the second air guide plate 3 is the first connecting line L1, and the line perpendicular to the first connecting line L1 is the first perpendicular line L2. The extension line L3 of the central axis of each hollow hole 32 intersects the first perpendicular line L2 and the included angle is a1, where -60°≤a1≤60°.

[0099] The line connecting the two ends of the second air guide plate 3 can be approximated as the extension direction of the second air guide plate 3. The insertion direction of the perforated hole 32 intersects the perpendicular line of the extension direction of the second air guide plate 3, and the included angle α1 is between -60° and 60°, which can be selected according to actual needs. Among them, taking the first perpendicular line L2 as the dividing line, the included angle α1 generated by the inclination of the central axis of the perforated hole 32 relative to one side of the first perpendicular line L2 is a positive value, and the included angle α1 generated by the inclination of the central axis of the perforated hole 32 relative to the other side of the first perpendicular line L2 is a negative value.

[0100] By setting the perforated hole 32 to have an angle with the first vertical line L2, the airflow direction through the perforated hole 32 can be limited, thereby guiding the airflow and improving the airflow effect.

[0101] For example, in the first mode, the second air guide plate 3 blocks the air outlet grille 15. The angle between the central axis of the perforated hole 32 and the first vertical line L2 is 35°. At this time, the central axis of the perforated hole 32 is inclined upward relative to the horizontal line, and the angle between the central axis of the perforated hole 32 and the horizontal line is greater than 50°. This allows the second air guide plate 3 to block the airflow flowing horizontally towards the air outlet grille 15, reducing air leakage. A small amount of airflow can pass through the second air guide plate 3 and flow out from the air outlet grille 15. A large amount of airflow is guided by the second air guide plate 3 to the bottom air outlet 12, which can increase the air volume of the bottom air outlet 12.

[0102] For example, the indoor unit 100 of the air conditioner has a fifth mode. In the fifth mode, the air outlet 2a of the first air guide plate 2 is arranged downwards, the second air guide plate 3 partially blocks the bottom air outlet 12, and the second air guide plate 3 and the first air guide plate 2 are spaced apart to define the air outlet channel 42. Air outlet channel 42, the hollow area 3b, and the air outlet grille 15 all emit air. In the fifth mode, the hollow holes 32 on the second air guide plate 3 guide the airflow forward and downward, which can guide the air outlet of the hollow area 3b and improve the air outlet effect of the indoor unit 100.

[0103] Optionally, the angle α1 between the extension line L3 of the central axis of the hollow hole 32 and the first vertical line L2 can be -60°, -45°, -30°, 15°, 45°, 55°, 60°, etc.

[0104] In some embodiments of this utility model, the perforated hole 32 is a round hole with a radius greater than 1.5mm, which allows for smooth airflow.

[0105] In some other embodiments of this utility model, the perforated hole 32 is an elongated hole with a width greater than 1.5 mm and a length greater than 2.5 mm and less than 25 mm, so as to allow for smooth airflow.

[0106] In some embodiments of this utility model, such as Figure 7 As shown, the air vent grille 15 includes a horizontally extending first spoke 151 and a vertically extending second spoke 152, the first spoke 151 and the second spoke 152 intersecting each other.

[0107] The air outlet grille 15 includes intersecting first spokes 151 and second spokes 152, which can improve the structural stability of the air outlet grille 15, reduce the shaking or deformation of the air outlet grille 15, improve the working stability of the air outlet grille 15, and help reduce air outlet noise.

[0108] Furthermore, the air vent grille 15, compared to a directly open air vent, can prevent users from putting their hands directly into it, thus improving the situation where users accidentally put their hands in during cleaning or other activities.

[0109] In some embodiments of this utility model, such as Figure 5 As shown, the lower surface of the first spoke 151 is formed into a second air guide surface 151a that extends forward and upward at an angle.

[0110] The lower surface of the first spoke 151 extends upward at an angle. The airflow flowing out through the air outlet grille 15 is guided upward at an angle by the first spoke 151, so that the airflow flowing out along the air outlet grille 15 is thrown upward to a higher position, thereby increasing the coverage of the airflow.

[0111] In some embodiments of this utility model, such as Figure 5 As shown, the angle between the second air guide surface 151a and the horizontal plane is a2, where 0°<a2≤30°.

[0112] When the angle α2 between the second guide surface 151a and the horizontal plane is too large, the second guide plate 3 tends to extend vertically. Although the guiding angle increases, the obstruction of airflow increases, and the airflow is more likely to collide with the second guide plate 3, generating turbulence. Therefore, setting the angle between the second guide surface 151a and the horizontal plane to less than 30° is optimal. This can guide the airflow upward without increasing airflow resistance, which is beneficial to airflow.

[0113] Optionally, the angle α2 between the second air guide surface and the horizontal plane can be 5°, 10°, 15°, 20°, 30°, etc.

[0114] In some embodiments of this utility model, such as Figure 14 and Figure 15As shown, the first spokes 151 extend in the left-right direction. There are multiple first spokes 151, which are spaced apart in the up-down direction. An air outlet channel 42 is defined between the multiple first spokes 151. The first spokes 151 include an end spoke 1511 located at the uppermost end. The end spoke 1511 also defines an air outlet channel with the adjacent lower first spoke 151. The end spoke 1511 is provided with a first inclined surface 15111 and a second inclined surface 15112. The air outlet end of the first inclined surface 15111 is connected to the air inlet end of the second inclined surface 15112. The air outlet end of the first inclined surface 15111 extends obliquely toward the air outlet channel and the second inclined surface 15112. The second inclined surface 15112 extends obliquely toward the direction away from the air outlet channel 42 and away from the first inclined surface 15111.

[0115] The end spoke 1511 includes a first inclined surface 15111 and a second inclined surface 15112 connected in sequence along the airflow direction. The first inclined surface 15111 is located on the air inlet side of the second inclined surface 15112. When the airflow flows out from the air outlet channel 42, it flows through the first inclined surface 15111 and the second inclined surface 15112 in sequence. Therefore, the air outlet end of the first inclined surface 15111 is connected to the air inlet end of the second inclined surface 15112.

[0116] The first inclined surface 15111 extends obliquely from the air inlet to the air outlet, with the oblique direction being towards the direction close to the air outlet channel 42. The second inclined surface 15112 also extends obliquely from the air inlet to the air outlet, with the oblique direction of the second inclined surface 15112 being towards the direction away from the air outlet channel 42.

[0117] In this way, the air outlet channel 42 segment defined by the first inclined surface 15111 becomes a tapered section, and the air outlet channel 42 segment defined by the second inclined surface 15112 becomes a flared section. The first inclined surface 15111 guides the airflow away from the end spokes 1511 and can increase the airflow velocity; while the second inclined surface 15112 extends at an angle away from the air outlet channel 42, which is equivalent to forming an outwardly concave groove at the air outlet end of the first inclined surface 15111. The airflow outlet area suddenly increases and the air pressure drops. Therefore, the airflow guided by the first inclined surface 15111 will be quickly drawn into the air outlet channel 42 segment defined by the second inclined surface 15112 and quickly diffused out. The dashed line with arrows in the figure indicates the airflow direction.

[0118] The airflow is accelerated within the air outlet channel 42 defined by the first inclined surface 15111, which can blow the airflow passing through the air outlet grille 15 further to achieve a longer air delivery distance and improve the airflow coverage. When delivering cold air, it can improve the situation where cold air sinks too quickly and improve the effect of preventing cold air from blowing directly.

[0119] Meanwhile, the second inclined surface 15112 forms a flared shape, which can increase the coverage area of ​​the airflow and reduce airflow backflow. The inclination of the second inclined surface 15112 avoids the flow of airflow, thereby reducing the contact between the airflow and the second inclined surface 15112. When delivering cold airflow, it can reduce the occurrence of condensation on the second inclined surface 15112, thereby reducing the impact of condensation accumulation on the surrounding environment.

[0120] In some embodiments of this utility model, such as Figure 14 As shown, the angle between the first inclined plane 15111 and the horizontal plane is b1, where 3° < b1 < 15°.

[0121] An angle b1 between the first inclined plane 15111 and the horizontal plane that is too large or too small is not conducive to airflow. When the angle b1 between the first inclined plane 15111 and the horizontal plane is too large, the area occupied by the first inclined plane 15111 inward in the air outlet channel 42 is too large, which increases the resistance to airflow and is not conducive to airflow. Alternatively, the first inclined plane 15111 needs to be extended to a large size, occupying a large space. When the angle b1 between the first inclined plane 15111 and the horizontal plane is too small, the effect of the first inclined plane 15111 in increasing the airflow velocity is weak, which is also not conducive to airflow.

[0122] Therefore, it is optimal to limit the angle b1 between the first inclined plane 15111 and the horizontal plane to 3° < b1 < 15°. This can accelerate the airflow, allow the airflow to reach a longer distance, increase the airflow coverage, and reduce the airflow resistance, which is beneficial to the airflow flow.

[0123] Optionally, the angle b1 between the first inclined plane 15111 and the horizontal plane can be 4°, 5°, 7.5°, 10°, 12°, etc.

[0124] In some embodiments of this utility model, such as Figure 14 As shown, the angle between the second inclined plane 15112 and the horizontal plane is b2, where 15° < b2 < 45°.

[0125] When the angle b2 between the second inclined surface 15112 and the horizontal plane is too large, the angle between the second inclined surface 15112 and the first inclined surface 15111 decreases, and the space of the groove 22 formed by the second inclined surface 15112 relative to the first inclined surface 15111 increases. This is not only detrimental to the structural stability of the end spokes 1511, but also makes the space defined by the second inclined surface 15112 prone to turbulence, which is not conducive to airflow. Conversely, when the angle b2 between the second inclined surface 15112 and the horizontal plane is too small, the airflow is more likely to come into contact with the second inclined surface 15112, which easily leads to condensation on the second inclined surface 15112.

[0126] Therefore, it is optimal to limit the angle b2 between the second inclined plane 15112 and the horizontal plane to 15° < b2 < 45°. This not only reduces the contact between the airflow and the second inclined plane 15112 and reduces the condensation generated on the second inclined plane 15112, but also facilitates stable airflow.

[0127] Optionally, the angle b2 between the second inclined plane 15112 and the horizontal plane can be 20°, 25°, 30°, 35°, 40°, etc.

[0128] In some embodiments of this utility model, such as Figure 14 As shown, the end spoke 1511 is provided with an air outlet plane 15113, which is connected to the air outlet end of the second inclined surface 15112. In the longitudinal section, the line connecting the air outlet end of the air outlet plane 15113 and the air outlet end of the first inclined surface 15111 is the second connecting line 15114. The second inclined surface 15112 is located on the side of the second connecting line 15114 away from the air outlet channel 42.

[0129] The air outlet plane 15113 is connected to the air outlet end of the second inclined plane 15112, and the airflow flows sequentially through the first inclined plane 15111, the second inclined plane 15112, and the air outlet plane 15113. It can be understood that if the second inclined plane 15112 is not provided, then the second connecting line 15114 will be used to limit the air outlet channel 42 on the air outlet side of the first inclined plane 15111, and the airflow will directly diffuse out along the flared opening formed by the first inclined plane 15111.

[0130] By setting a second inclined surface 15112, which is located on the side of the second connecting line 15114 away from the air outlet channel 42, the air outlet plane 15113 on the air outlet side of the second inclined surface 15112 is also located on the side of the second connecting line 15114 away from the air outlet channel 42. Compared to the second connecting line 15114, the second inclined surface 15112 is located further away from the air outlet channel 42, while the airflow still follows a similar path to the air outlet channel 42 defined by the first inclined surface 15111. Therefore, the contact between the airflow and the second inclined surface 15112 and the air outlet plane 15113 can be reduced, thereby reducing the condensation on the second inclined surface 15112 and the air outlet plane 15113 and reducing the impact of condensation accumulation on the surrounding environment.

[0131] In some embodiments of this utility model, such as Figure 14 As shown, the angle between the second inclined plane 15112 and the second connecting line 15114 is b3, where 5° < b3 < 20°.

[0132] When the angle b3 between the second inclined plane 15112 and the second connecting line 15114 is too large, the space formed by the second inclined plane 15112 and the air outlet plane 15113 increases, and the airflow is prone to accumulate in the space, generating turbulence, which is not conducive to airflow. When the angle b3 between the second inclined plane 15112 and the second connecting line 15114 is too small, the airflow is prone to contact with the second inclined plane 15112 and the air outlet plane 15113, which easily leads to condensation.

[0133] Therefore, it is optimal to limit the included angle b3 between the second inclined plane 15112 and the second connecting line 15114 to 5° < b3 < 20°. This not only facilitates the smooth flow of air through the second inclined plane 15112 and the air outlet plane 15113, but also reduces condensation on the second inclined plane 15112 and the air outlet plane 15113.

[0134] Optionally, the included angle b3 between the second inclined plane 15112 and the second connecting line 15114 can be 7°, 10°, 15°, 12°, 18°, etc.

[0135] In some embodiments of this utility model, such as Figure 14 As shown, the air inlet end of the first spoke 151 is provided with a guide surface 151b, which is inclined in the direction of the air outlet channel 42.

[0136] The guide surface 151b is tilted toward the air outlet channel 42, which can guide the airflow toward the air outlet channel 42, which is conducive to the airflow flowing into the air outlet channel 42, thereby improving the airflow flow in the air outlet grille 15.

[0137] In some embodiments of this utility model, such as Figure 14 As shown, the guide surface 151b is constructed as an arc surface, which can reduce wind resistance, provide better guidance for airflow, and facilitate the flow of air into the air outlet channel 42.

[0138] In some embodiments of this utility model, such as Figure 15 As shown, at least one first spoke 151 has a plurality of air guide protrusions 1512 spaced apart in the left-right direction at its air inlet end.

[0139] Therefore, the air inlet end of the first spoke 151 is wavy along its length. By setting the air guide protrusion 1512, the air can be dispersed, reducing wind resistance and facilitating the flow of air into the air outlet channel 42; and the air can be diffused to wrap around the air outlet end of the first spoke 151, reducing the generation of condensate.

[0140] In some embodiments of this utility model, such as Figure 14As shown, in the front-rear direction, the size of the end spoke 1511 is larger than the size of the remaining first spokes 151, and the size of the first spokes 151 is larger than the size of the second spokes 152.

[0141] By reducing the size of the remaining first spokes 151, the contact between the airflow and the first spokes 151 can be reduced, thereby reducing the generation of condensation on the first spokes 151. Furthermore, the size of the second spokes 152 is smaller than that of the first spokes 151, further reducing the contact between the airflow and the second spokes 152, thus reducing the generation of condensation on the second spokes 152. Moreover, the condensation generated on the second spokes 152 can be caught by the first spokes 151, reducing the impact of condensation accumulation and flow down onto the surrounding environment. In some embodiments of this utility model, such as Figure 16 As shown, the air vent grille 15 includes a decorative area 15a and an air vent area 15b. In the vertical direction, the decorative area 15a is located above the air vent area 15b. The air vent area 15b is provided with a first spoke 151, and the end spoke 1511 is a spoke of the air vent area 15b facing the decorative area 15a.

[0142] The air vent grille 15 includes a decorative area 15a and an air vent area 15b. The air vent area 15b defines an air vent channel 42 and is used to guide the airflow. The decorative area 15a is a solid structure with higher structural strength and can be used for the assembly and connection of the air vent grille 15.

[0143] In some embodiments of this utility model, such as Figure 14 and Figure 16 As shown, the decorative area 15a includes a decorative panel 153 and a decorative rib 154, the decorative rib 154 extending in the left-right direction and protruding from the decorative panel 153.

[0144] The decorative rib 154 and the first spoke 151 protrude together from the decorative panel 153, which can make the overall unity of the decorative area 15a and the air outlet area 15b stronger and improve the visual separation between the decorative area 15a and the air outlet area 15b.

[0145] In some embodiments of this utility model, such as Figure 12 As shown, a volute 53 is provided inside the housing 1, which defines an air guide channel 533. The upper wall 531 of the volute 53 is inclined downward and extends inclined towards the air outlet grille 15. The housing 1 also includes a face frame 16, with a front panel 11 located on the front side of the face frame 16. A portion of the face frame 16 is located between the upper wall 531 and the air outlet grille 15. The portion of the face frame 7 located between the upper wall 531 and the air outlet grille 15 is provided with a planar guide section 161.

[0146] The upper end wall 531 is inclined downward and extends inclined toward the air outlet grille 15. The guide section 161 is connected between the upper end wall 531 and the air outlet grille 15. The guide section 161 is constructed as a horizontal plane, so as to smoothly transition between the upper end wall 531 and the air outlet grille 15.

[0147] In some embodiments of this utility model, such as Figure 1 As shown, the air vent grille 15 and the front panel 11 are an integral piece. The air vent grille 15 and the front panel 11 have strong integrity and structural stability, and are not prone to relative shaking, which helps to reduce airflow noise.

[0148] In some other embodiments of this utility model, the air vent grille 15 and the front panel 11 are separate components. For example, the air vent grille 15 and the front panel 11 are separately formed and then snap-fitted together.

[0149] The air vent grille 15 and the front panel 11 are separate parts, which makes it easy to disassemble the air vent grille 15, thus facilitating subsequent cleaning of the air vent grille 15, or making it easy to remove and replace the air vent grille 15 separately.

[0150] In some embodiments of this utility model, such as Figure 3 As shown, the air vent grille 15 and the front panel 11 are integrated. The housing 1 also includes a frame 14, which surrounds the front panel 11 and forms a concave arc surface around the front panel 11, making the front panel 11 appear as a floating panel. This not only effectively increases the air intake space behind the front panel 11, which is beneficial for increasing the air intake volume, but also improves the convenience of opening the front panel 11.

[0151] In some embodiments of this utility model, such as Figure 7 As shown, the area of ​​the front surface of the air vent grille 15 is S1, and the total area of ​​the front surface of the front panel 11 and the front surface of the air vent grille 15 is S2, where the value of S1 / S2 ranges from 1 / 4 to 1 / 2.

[0152] The area S1 of the front surface of the air outlet grille 15 is at least one-quarter of the area S2 of the front surface of the front panel 11 and the front surface of the air outlet grille 15. The large opening area of ​​the air outlet grille 15 is beneficial to increasing the air volume of the indoor unit 100 of the air conditioner.

[0153] The area S1 of the front surface of the air vent grille 15 shall not exceed half the area S2 of the front surface of the front panel 11 and the air vent grille 15, which is beneficial to improving the structural stability of the front panel 11 and the air vent grille 15.

[0154] In some embodiments of this utility model, such as Figure 11 As shown, the opening area of ​​the bottom air outlet 12 is S3, and the area of ​​the bottom wall 13 of the casing 1 is S4, where the value range of S3 / S4 is 1 / 4-2 / 3.

[0155] The opening area S3 of the bottom air outlet 12 occupies at least one-quarter of the area S4 of the bottom wall 13 of the casing 1. The large opening area of ​​the bottom air outlet 12 is beneficial to increasing the air volume of the indoor unit 100 of the air conditioner.

[0156] The opening area S3 of the bottom air outlet 12 shall not exceed two-thirds of the area S4 of the bottom wall 13 of the casing 1. At least one-third of the bottom wall 13 of the casing 1 is a solid structure, which can improve the structural stability of the air conditioner indoor unit 100.

[0157] In some embodiments of this utility model, the bottom wall 13 of the first air guide plate 2 matches the outline of the bottom wall 13 of the housing 1. When the first air guide plate 2 blocks the bottom air outlet 12, the bottom wall 13 of the housing 1 and the bottom wall 13 of the first air guide plate 2 are on the same surface, which can be a straight surface or a curved surface, thereby improving the overall integrity of the air conditioner indoor unit 100.

[0158] In some embodiments of this utility model, the air outlet grille 15 is opened in the horizontal direction, and the angle between the extension direction of the line connecting the center of the internal air duct of the air conditioner indoor unit 100 to the center of the bottom air outlet 12 and the horizontal direction is greater than or equal to 60°. The angle between the bottom air outlet 12 and the air outlet grille 15 is large, which can improve the air outlet coverage of the air conditioner indoor unit 100.

[0159] The air conditioner according to the second aspect of the present invention includes the indoor unit 100 of the first aspect of the present invention.

[0160] According to the embodiment of the present utility model, by setting the above-mentioned air conditioning indoor unit 100, the air supply and heat exchange effect of the air conditioner can be improved, thereby improving the working efficiency of the air conditioner.

[0161] Other components of the air conditioner indoor unit 100 according to the present invention, such as the ventilation and heat exchange component 5, and its operation are known to those skilled in the art and will not be described in detail here.

[0162] 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., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0163] 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. An air conditioner indoor unit characterized by comprising: include: The housing has an air vent grille on its front panel and a bottom air vent on its bottom wall. A first air guide plate is rotatably disposed on the housing to open or block the bottom air outlet. When the first air guide plate blocks the bottom air outlet, the front end of the first air guide plate engages with the lower end of the air outlet grille. The first air guide plate rotates in a direction away from the air outlet grille to open the bottom air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, It also includes a second air guide plate, which is disposed inside the housing and is rotatable to direct airflow to the air outlet grille and / or the bottom air outlet.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The indoor unit of the air conditioner has a first mode, in which the air outlet end of the first air guide plate faces downward to open the bottom air outlet, and the second air guide plate blocks the air outlet grille.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, In the first mode, the surface of the second air guide plate facing the first air guide plate is formed into an arc-shaped first air guide surface.

5. The indoor unit of the air conditioner according to claim 3, characterized in that, In the first mode, the lower end of the second air guide plate extends beyond the lower end of the air outlet grille.

6. The indoor unit of the air conditioner according to claim 2, characterized in that, The indoor unit of the air conditioner has a second mode. In the second mode, the first air guide plate blocks the bottom air outlet, and the air outlet end of the second air guide plate faces the air outlet grille to guide the air towards the air outlet grille.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, In the second mode, a gap is provided between the top surface of the first air guide plate and the bottom wall of the air outlet grille.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The first air guide plate has a groove at its air outlet end, and the groove is located on the front side of the gap.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The inner wall of the groove is formed into an arc-shaped surface.

10. The indoor unit of the air conditioner according to claim 7, characterized in that, In the height direction, the minimum value of the gap is H, where 0 < H ≤ 20 mm.

11. The indoor unit of the air conditioner according to claim 2, characterized in that, The indoor unit of the air conditioner has a third mode. In the third mode, the air outlet end of the first air guide plate is arranged facing forward and downward to define the air outlet space at a distance from the lower end of the air outlet grille, and the air outlet end of the second air guide plate is arranged facing forward and upward to guide the air towards the air outlet grille.

12. The indoor unit of the air conditioner according to claim 2, characterized in that, The indoor unit of the air conditioner has a fourth mode. In the fourth mode, the air outlets of the first air guide plate and the second air guide plate are both arranged facing forward and downward, and the air outlet grille and the bottom air outlet both emit air.

13. The indoor unit of the air conditioner according to any one of claims 2-12, characterized in that, The second air guide plate has a hollowed-out area.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, The hollowed-out area includes multiple hollowed-out holes, which are arranged in multiple rows along the width direction of the second air guide plate. Each row includes multiple hollowed-out holes spaced apart along the length direction of the second air guide plate.

15. The indoor unit of the air conditioner according to claim 13, characterized in that, The indoor unit of the air conditioner has a fifth mode. In the fifth mode, the air outlet end of the first air guide plate is arranged downward, the second air guide plate partially blocks the bottom air outlet, and the second air guide plate and the first air guide plate are spaced apart to define the air outlet channel. The air outlet channel, the hollow area and the air outlet grille all emit air.

16. The indoor unit of the air conditioner according to claim 14, characterized in that, On the same cross-section of the second air guide plate, the line connecting the two ends of the second air guide plate is the first connecting line, the line perpendicular to the first connecting line is the first perpendicular line, and the extension line of the central axis of each of the hollow holes intersects the first perpendicular line at an angle of a1, where -60°≤a1≤60°.

17. The indoor unit of the air conditioner according to claim 1, characterized in that, The air vent grille includes a horizontally extending first spoke and a vertically extending second spoke, the first spoke and the second spoke intersecting each other.

18. The indoor unit of the air conditioner according to claim 17, characterized in that, The lower surface of the first spoke is formed into a second air guide surface that extends forward and upward at an angle.

19. The indoor unit of the air conditioner according to claim 18, characterized in that, The angle between the second air guide surface and the horizontal plane is a2, where 0°<a2≤30°.

20. The indoor unit of the air conditioner according to claim 1, characterized in that, The air vent grille and the front panel are a single piece; or The air vent grille and the front panel are separate components.

21. The indoor unit of the air conditioner according to claim 1, characterized in that, The area of ​​the front surface of the air vent grille is S1, and the total area of ​​the front surface of the front panel and the front surface of the air vent grille is S2, wherein the value of S1 / S2 ranges from 1 / 4 to 1 / 2.

22. The indoor unit of the air conditioner according to claim 1, characterized in that, The opening area of ​​the bottom air outlet is S3, and the area of ​​the bottom wall of the casing is S4, wherein the value of S3 / S4 ranges from 1 / 4 to 2 / 3.

23. An air conditioner, characterized in that, Including the indoor unit of an air conditioner according to any one of claims 1-22.

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