Air conditioner indoor unit

Abstract

The present invention provides an air conditioner indoor unit, comprising a heat exchange air duct, one or two air outlet chambers, one or two second air outlets and one or two upper and lower air guide plate groups. The outlet of the heat exchange air duct is a first air outlet. Each air outlet chamber is arranged on a lateral side of the heat exchange air duct, and each air outlet chamber is connected with the heat exchange air duct at its lower end. Each second air outlet is arranged on the front cavity wall of an air outlet chamber, and penetrates to the outside of the air conditioner indoor unit to supply air to the outside of the air conditioner indoor unit. Each second air outlet is a long strip air outlet extending in the up-down direction. Each upper and lower air guide plate group comprises a plurality of air guide plates. The plurality of air guide plates of each upper and lower air guide plate group are arranged in sequence in the up-down direction, and each upper and lower air guide plate group is used to adjust the airflow flowing out of the corresponding second air outlet in the up-down direction. The air conditioner indoor unit provided by the present invention enables the air outlet to achieve multi-angle air outlet in the up-down direction, meets the various use requirements of users, and improves the comfort of users.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an indoor unit of an air conditioning. Background Art

[0002] Air conditioning has improved people's living standards, brought cool air to people in hot summer, and made people live at a suitable temperature, so that their mood, sleep, work and study are all in a normal state. However, most of the current air conditioning indoor units have one air outlet, and the air flow is blown out from one air outlet. The air supply method is direct blowing of cool air, which blows directly on people, making people uncomfortable or even sick. The air outlet range of one air outlet is also small, which cannot meet the demand for rapid cooling. In order to solve this problem, multiple air outlets can be set on the air conditioning indoor unit, but the air outlet angles of multiple air outlets are fixed, which cannot meet the user's more usage needs. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide an air-conditioning indoor unit that overcomes the above problems or at least partially solves the above problems, so that the air outlet can achieve multi-angle air discharge along the up and down directions, meet the user's various usage needs, and improve the user's comfort.

[0004] Specifically, the present invention provides an air conditioner indoor unit, comprising a heat exchange air duct, wherein the outlet of the heat exchange air duct is a first air outlet, and further comprising:

[0005] One or two air outlet cavities, each of which is disposed on a lateral side of the heat exchange air duct, and each of which is communicated with the heat exchange air duct at its lower end;

[0006] One or two second air outlets, each of which is arranged on a front wall of the air outlet cavity and penetrates to the outside of the air conditioner indoor unit to supply air to the outside of the air conditioner indoor unit; each of the second air outlets is a long strip air outlet extending in the up-down direction;

[0007] One or two upper and lower air guide plate groups, each of the upper and lower air guide plate groups includes multiple air guide plates; the multiple air guide plates of each upper and lower air guide plate group are arranged in sequence along the up and down directions, and each of the upper and lower air guide plate groups is used to adjust the airflow flowing out of the corresponding second air outlet in the up and down directions.

[0008] Optionally, the multiple air guide plates of each upper and lower air guide plate group are arranged in the corresponding air outlet cavity in sequence and spaced apart along the up and down directions; the front end of each air guide plate is rotatably arranged around a horizontal axis in the corresponding second air outlet, or the front end of each air guide plate is rotatably arranged around a horizontal axis on the front cavity wall of the corresponding air outlet cavity.

[0009] Optionally, the projection of each of the air guide plates on a plane perpendicular to the transverse direction is a first circular arc, and the first circular arc is arched upward; the diameters of the air guide plates in each of the upper and lower air guide plate groups are the same; and among two adjacent air guide plates, the rear end of the upper air guide plate is located above and rearward of the rear end of the lower air guide plate.

[0010] Optionally, the number of the air guide plates of each air guide plate group is N, so as to divide the corresponding second air outlet into N+1 air outlet areas;

[0011] The rear end of the top air guide plate can contact the rear wall of the air outlet cavity during rotation to close the uppermost air outlet area; when the rear end of the top air guide plate rotates to contact the rear wall of the air outlet cavity, the rear end of the top air guide plate is located above and behind the front end.

[0012] Optionally, the projection of the rear cavity wall of the air outlet cavity on a plane perpendicular to the transverse direction is a second arc, and the center of the second arc is located on the front side or front lower side of the second arc; the upper end of the rear cavity wall of the air outlet cavity is the highest point of the air outlet cavity, and the lower end is the lowest point of the air outlet cavity.

[0013] Optionally, the plurality of air guide plates include a first air guide plate, a second air guide plate and a third air guide plate which are sequentially arranged from top to bottom;

[0014] The straight-line distance between the front end and the rear end of the first air guide plate is a first straight-line distance, the straight-line distance between the front end and the rear end of the second air guide plate is a second straight-line distance, the straight-line distance between the front end and the rear end of the third air guide plate is a third straight-line distance, the ratio of the first straight-line distance to the third straight-line distance is 1.8 to 2.2, and the ratio of the second straight-line distance to the third straight-line distance is 1.3 to 1.7;

[0015] The central angle corresponding to the third air guide plate is 21 degrees to 25 degrees.

[0016] Optionally, each of the upper and lower air guide plate groups further includes a rack and a plurality of gears meshing with the rack, each of the gears is fixedly connected to one of the air guide plates, and each of the gears is coaxial with the rotation axis of the corresponding air guide plate.

[0017] Optionally, the air-conditioning indoor unit further includes one or two air-inducing devices, each of which is configured to cause the airflow in the heat exchange air duct to enter one of the air outlet cavities and flow out from the corresponding second air outlet.

[0018] Optionally, the air induced device includes an air induced fan, and an air outlet of each of the air induced fans is located in the air outlet cavity. The air outlet is oriented vertically upward and is located at the rear side of the plurality of air guide plates.

[0019] Optionally, the first air outlet is a long strip air outlet extending in the transverse direction; each of the second air outlets is provided with a plurality of partition strips arranged at intervals in the transverse direction to divide each of the second air outlets into a plurality of grille holes arranged in sequence in the transverse direction, and each of the grille holes extends in the up and down direction.

[0020] In the indoor unit of the air conditioner of the present invention, air flows into the air outlet cavity from the heat exchange air duct and is discharged from the second air outlet under the guidance of the air guide plate. Since the air guide plate can be adjusted in the up and down direction, the second air outlet can realize multi-angle air discharge in the up and down direction, meeting the various use needs of users and improving user comfort.

[0021] Furthermore, the air-conditioning indoor unit of the present invention is preferably a wall-mounted air-conditioning indoor unit.

[0022] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary 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:

[0024] Figure 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0025] Figure 2 is a schematic cross-sectional view of an air guide plate of an indoor unit of an air conditioner according to an embodiment of the present invention being opened;

[0026] Figure 3 is a schematic cross-sectional view of a main air guide plate of an air conditioner indoor unit according to an embodiment of the present invention that is not completely closed;

[0027] Figure 4 is a schematic structural diagram of a second air outlet blowing air forward and upward according to an embodiment of the present invention;

[0028] Figure 5 is a schematic structural diagram of a second air outlet blowing air forward according to an embodiment of the present invention;

[0029] Figure 6 is a schematic structural diagram of a second air outlet blowing air forward and downward according to an embodiment of the present invention;

[0030] Figure 7 is a schematic structural diagram of a side box and an induced draft fan according to an embodiment of the present invention;

[0031] Figure 8 is a schematic structural diagram of a blade swing device of an air conditioner indoor unit according to an embodiment of the present invention;

[0032] Fig. 9 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0033] Fig.10 is a schematic structural diagram of a skeleton of an air conditioner indoor unit according to an embodiment of the present invention;

[0034] Fig.11 is a schematic exploded view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0035] Fig.12 is a schematic exploded view of an air conditioner indoor unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] Refer to the following Figures 1 to 12 To describe the air-conditioning indoor unit of an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 "multiple" 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.

[0037] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0038] 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 through 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 and obliquely 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 obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Figure 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention. Figure 1 As shown, and refer to Figures 2 to 12 , an embodiment of the present invention provides an air conditioner indoor unit 100, comprising a heat exchange air duct 102, one or two air outlet cavities 105, one or two second air outlets 106, and one or two upper and lower air guide plate groups. The outlet of the heat exchange air duct 102 is a first air outlet 103. Each air outlet cavity 105 is arranged on a lateral side of the heat exchange air duct 102, and each air outlet cavity 105 is connected to the heat exchange air duct 102 at its lower end. Each second air outlet 106 is arranged on the front cavity wall of an air outlet cavity 105, and penetrates to the outside of the air conditioner indoor unit 100 to supply air to the outside of the air conditioner indoor unit 100. Each second air outlet 106 is a long strip air outlet extending in the up-down direction. Each upper and lower air guide plate group includes a plurality of air guide plates 117. The plurality of air guide plates 117 of each upper and lower air guide plate group are arranged in sequence in the up-down direction, and each upper and lower air guide plate group is used to adjust the airflow flowing out of the corresponding second air outlet 106 in the up-down direction. At the same time, the air guide plates 117 of each air guide plate group can divide the corresponding second air outlet 106 into multiple air outlet areas. For example, the number of air guide plates 117 of each air guide plate group is N, so as to divide the corresponding second air outlet 106 into N+1 air outlet areas.

[0041] In the air conditioner indoor unit 100 of the embodiment of the present invention, the airflow enters the air outlet cavity 105 from the heat exchange air duct 102, and is discharged from the second air outlet 106 under the guidance of the air guide plate 117. Since the air guide plate 117 can be adjusted in the up-down direction, the second air outlet 106 can realize multi-angle air discharge in the up-down direction, meet the various use needs of users, and improve user comfort.

[0042] In some embodiments of the present invention, Figures 1 to 3 As shown, the air conditioner indoor unit 100 also includes a shell, a first air outlet 103 is arranged at the bottom of the shell, and is a long strip air outlet extending in the lateral direction, and a main air guide plate 110 is arranged at the first air outlet 103. The air conditioner indoor unit 100 also includes a heat exchanger 101 and one or two bypass air ducts 104. The heat exchanger 101 is arranged in the heat exchange air duct 102. Each bypass air duct 104 is arranged on a lateral side of the heat exchange air duct 102, and each bypass air duct 104 is connected to the heat exchange air duct 102 to receive the airflow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101. Each air outlet cavity 105 is connected to a bypass air duct 104.

[0043] In the air conditioner indoor unit 100 of the embodiment of the present invention, the air flow after heat exchange with the heat exchanger 101 in the heat exchange air duct 102 is discharged from the air conditioner indoor unit 100 through the first air outlet 103 and one or two second air outlets 106, so that the air conditioner indoor unit 100 has at least two air outlet modes, such as an air outlet mode in which air is supplied only from the second air outlet 106. Due to the presence of the bypass air duct 104 and the air outlet cavity 105, the air supply from the second air outlet 106 can achieve a windless feeling, thereby improving the comfort of the user. For another example, the second air outlet 106 and the first air outlet 103 supply air at the same time, and the opening of the first air outlet 103 is relatively small, so another windless air supply can also be achieved. For another example, the second air outlet 106 and the first air outlet 103 supply air at the same time, and the opening of the first air outlet 103 is relatively large, so that rapid air supply is achieved, and the air supply angle is large, so that the air supply range is large. Preferably, there are two air outlet cavities 105 and two bypass air ducts 104, which further facilitate windless air supply, large-angle air supply, fast air supply, etc., and are beneficial to the diffusion of airflow, etc.

[0044] Moreover, since the first air outlet 103 and the second air outlet 106 share the heat exchange air duct 102, the heat exchange of the heat exchanger is uniform in various air outlet modes, and the problem of local frost on the heat exchanger 101 is effectively avoided. Further, the air conditioner indoor unit 100 includes a fan, which causes the air flow to pass through the heat exchange air duct 102, the first air outlet 103 and the second air outlet 106. For example, the fan can be a cross-flow fan. The volute 108 and the volute tongue 109 of the cross-flow fan define part or all of the heat exchange air duct 102, and the cross-flow fan wheel 107 of the cross-flow fan is arranged in the heat exchange air duct 102.

[0045] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the heat exchanger 101 and the heat exchange air duct 102 are located in the shell. The first air outlet 103 and the second air outlet 106 are located on the shell, and the first air outlet 103 supplies air forward and / or forward and downward, and the second air outlet 106 supplies air forward and / or forward and downward. The second air outlet 106 is arranged on the front surface of the shell. Each second air outlet 106 is arranged on a lateral side of the first air outlet 103. In this way, through the form of three front air outlets, it is further convenient to supply air without wind, supply air at a large angle, and supply air quickly, etc., and it can also achieve the cooling air blowing flat without blowing people, thereby improving user comfort.

[0046] In some embodiments of the present invention, Figures 4 to 6 As shown, the plurality of air guide plates 117 of each upper and lower air guide plate group are sequentially arranged in the corresponding air outlet cavity 105 at intervals along the up-down direction. The front end of each air guide plate 117 is rotatably arranged in the corresponding second air outlet 106 around a horizontal axis, or the front end of each air guide plate 117 is rotatably arranged on the front cavity wall of the corresponding air outlet cavity 105 around a horizontal axis.

[0047] The air guide plate 117 can be rotated to different positions to achieve air supply in different directions. For example, the front end of the air guide plate 117 is located above and in front of the rear end, so that the airflow in the air outlet cavity 105 is blown out to the front and upward under the guidance of the air guide plate 117. Figure 4 As another example, the front end and the rear end of the air guide plate 117 are at the same height, so that the airflow in the air outlet cavity 105 is blown out to the front under the guidance of the air guide plate 117. Figure 5 As another example, the front end of the air guide plate 117 is located in front of and below the rear end, so that the airflow in the air outlet cavity 105 is blown out forward and downward under the guidance of the air guide plate 117. Figure 6 As shown by the arrows, the air guide plate 117 enables the second air outlet 106 to discharge air at multiple angles in the up and down directions, thus meeting various usage requirements of users.

[0048] In some embodiments of the present invention, Figures 4 to 6 As shown, the projection of each air guide plate 117 on a plane perpendicular to the transverse direction is a first circular arc, and the first circular arc is arched upward. The diameters of the air guide plates 117 of each upper and lower air guide plate group are the same. For example, the diameter of the air guide plate 117 is 180 mm to 220 mm, preferably 200 mm. Of the two adjacent air guide plates 117, the rear end of the upper air guide plate 117 is located above and behind the rear end of the lower air guide plate 117.

[0049] In some embodiments of the present invention, Figure 6As shown, when the rear end of the top air guide plate 117 rotates to contact the rear wall of the air outlet cavity 105, the rear end of the top air guide plate 117 is located above and behind the front end, which reduces the air outlet area of ​​the second air outlet 106, increases the air outlet speed, and facilitates air supply.

[0050] In some preferred embodiments of the present invention, the number of air guide plates 117 of each air guide plate group is three, and the three air guide plates 117 include a first air guide plate, a second air guide plate, and a third air guide plate arranged in sequence from top to bottom. The straight-line distance between the front end and the rear end of the first air guide plate is the first straight-line distance, the straight-line distance between the front end and the rear end of the second air guide plate is the second straight-line distance, and the straight-line distance between the front end and the rear end of the third air guide plate is the third straight-line distance. The ratio between the first straight-line distance and the third straight-line distance is 1.8 to 2.2, preferably the ratio is 2. The ratio between the second straight-line distance and the third straight-line distance is 1.3 to 1.7, preferably the ratio is 1.5. The third straight-line distance is 34 mm to 44 mm, preferably 39 mm. The central angle corresponding to the third air guide plate is 21 degrees to 25 degrees, preferably 23 degrees.

[0051] In some embodiments of the present invention, Figures 4 to 6 As shown, the projection of the rear cavity wall of the air outlet cavity 105 on a plane perpendicular to the transverse direction is a second arc, and the center of the second arc is at the front side or the front lower side of the second arc. The upper end of the rear cavity wall of the air outlet cavity 105 is the highest point of the air outlet cavity 105, and the lower end is the lowest point of the air outlet cavity 105. For example, the radius of the second arc is 450mm to 550mm, and the corresponding center angle of the second arc is 30 degrees to 40 degrees. Preferably, the radius of the second arc is 500mm, and the corresponding center angle of the second arc is 35 degrees, so that the airflow in the air outlet cavity 105 can flow to the second air outlet 106 better.

[0052] In some embodiments of the present invention, each upper and lower air guide plate group further includes a rack and a plurality of gears meshing with the rack, each gear is fixedly connected to an air guide plate 117, and each gear is coaxial with the rotation axis of the corresponding air guide plate 117. When it is necessary to adjust the air outlet angle of the second air outlet 106, the movement of the rack drives the rotation of the plurality of gears, and then drives the plurality of air guide plates to swing, so as to achieve air outlet at different angles, meet the different usage requirements of users, and improve the comfort of users. In order to facilitate the adjustment of the air outlet angle, a handle is provided on the rack, and pulling the handle drives the rotation of the plurality of gears, and then drives the plurality of air guide plates 117 to swing synchronously in the up and down directions. In some preferred embodiments, the plurality of air guide plates 117 can be driven to swing synchronously by a driving device such as a motor to achieve automatic adjustment.

[0053] In some embodiments of the present invention, the air conditioner indoor unit 100 further includes one or two air induction devices, each of which is configured to force the airflow in the heat exchange air duct to enter an air outlet cavity 105 and flow out from the corresponding second air outlet 106. Figure 7 As shown, the induced draft device includes an induced draft fan 132, and the air outlet of each induced draft fan 132 is located in the air outlet cavity 105, and the air outlet is oriented vertically upward and is located at the rear side of the plurality of air guide plates 117. Each induced draft fan 132 can be a centrifugal fan.

[0054] In some embodiments of the present invention, a plurality of partition bars arranged at intervals in the transverse direction are provided in each second air outlet 106 to divide each second air outlet 106 into a plurality of grille holes arranged in sequence in the transverse direction, and each grille hole extends in the up-down direction. The partition bars divide the second air outlet 106 into a plurality of grille holes, so that the airflow blown out is more uniform, thereby improving the comfort of the user. The width of each grille hole is 4 mm to 6 mm, and the width of each second air outlet 106 is 35 mm to 40 mm. Preferably, the width of each grille hole is 5 mm, and the width of each second air outlet 106 is 37 mm.

[0055] In some embodiments of the present invention, the heat exchange air duct 102 includes a first air duct section and a second air duct section for receiving the airflow of the first air duct section. Along the transverse direction, the width of the second air duct section is greater than the width of the first air duct section. Along the transverse direction, one side of the first air duct section is flush with one side of the second air duct section. Each bypass air duct 104 is connected to one side of the second air duct section. The outlet of the second air duct section is the first air outlet 103.

[0056] In some embodiments of the present invention, the profile of the cross section of each bypass air duct 104 is the same as the profile of the corresponding side of the second air duct segment. The distance between the upper rear corner of the inlet end of each bypass air duct 104 and the center of the volute tongue 109 is 22 mm to 28 mm. Preferably, the distance between the upper rear corner of the inlet end of each bypass air duct 104 and the center of the volute tongue 109 is 25 mm.

[0057] The inlet end of each bypass air duct 104 is provided with a mounting plate perpendicular to the bypass air duct 104. The main air guide plate 110 is rotatably mounted on the mounting plate. The air conditioner indoor unit 100 also includes a main air guide plate motor. The main air guide plate motor is installed in a bypass air duct 104, and is used to drive the main air guide plate 110 to rotate. In some alternative embodiments of the present invention, the profile of the cross section of each bypass air duct 104 may also be inconsistent with the profile of the corresponding side of the second air duct section, and the ratio between the inlet area and the outlet area of ​​each bypass air duct 104 is 0.5 to 0.7. Preferably, the ratio is 0.6.

[0058] In some embodiments of the present invention, Figure 1As shown, the main air guide plate 110 is configured to open and close the first air outlet 103 so that the first air outlet 103 has different openings, thereby making the air conditioner indoor unit 100 have different air outlet modes. Specifically, the first air outlet 103 has an opening of more than the first percentage, so that the air conditioner indoor unit 100 has a first air outlet mode, and the first air outlet 103 has an opening less than the second percentage, so that the air conditioner indoor unit 100 has a second air outlet mode. The first percentage is greater than or equal to the second percentage. For example, the first percentage is 20% to 40%, and the second percentage is 20% or 5%. Preferably, the first percentage and the second percentage are both 20%. In the second air outlet mode, the ratio between the air volume of the second air outlet 106 and the air volume of the first air outlet 103 is greater than the ratio between the air volume of the second air outlet 106 and the air volume of the first air outlet 103 in the first air outlet mode. By adjusting the opening of the first air outlet 103, the ratio between the air volume of the first air outlet 103 and the air volume of the second air outlet 106 is adjusted, thereby meeting the use requirements of different air supply modes.

[0059] At least in the second air outlet mode, under the action of the main air guide plate 110, the air volume between the upper edge of the main air guide plate 110 and the upper edge of the first air outlet 103 is greater than the air volume between the lower edge of the main air guide plate 110 and the lower edge of the first air outlet 103. This arrangement allows the second air outlet mode to be windless air supply, and achieves cooling air blowing flat without blowing people, thereby improving user comfort. Moreover, the opening of the main air guide plate 110 is controlled so that the main air guide plate 110 is in a suitable position to prevent condensation. For example, the second percentage is 10%, which can prevent condensation. At the same time, the wind from the first air outlet 103 is blocked, and most of it is blown out through the second air outlet 106, achieving cooling blowing flat without blowing people, increasing the air outlet range, and improving user comfort. The ratio between the rotation speed of the cross-flow fan in the second air outlet mode and the rotation speed in the first air outlet mode is 1.2 to 1.8. Preferably, the ratio is 1.5.

[0060] In some embodiments of the present invention, the housing includes one or two side boxes 111, each of which is located on a lateral side of the heat exchange air duct 102, each of which has an air outlet cavity 105, and a second air outlet 106 is arranged on the front surface of the corresponding side box 111. The housing also includes a frame 114, a cover 115 and a front panel 116, the cover 115 is arranged on the frame 114, and the front panel 116 is arranged on the cover 115. Each side box 111 is arranged on a lateral side of the frame 114 and the cover 115, and the heat exchange air duct 102 is in a space defined by the cover 115 and the frame 114. The airflow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101 enters the air outlet cavity 105 in one of the side boxes 111, and is blown out through the second air outlet 106 on the front surface of one of the side boxes 111.

[0061] like Figure 7 As shown, each side box 111 may include a box body 112 having an opening and a box cover 113 disposed at the opening of the box body 112. Part or all of the second air outlet 106 is disposed on the box cover 113. The box cover 113 and the front panel 116 are integrally formed, so that the structure is simple and easy to manufacture. In some other embodiments, the side box 111 and the front panel 116 are two separate components that cooperate with each other through installation.

[0062] In some embodiments of the present invention, a plurality of guide ribs are arranged at intervals along the transverse direction on the lower surface of the heat exchange air duct 102 to guide the airflow in the heat exchange air duct 102 into the bypass air duct 104. The plurality of guide ribs are located in the first air duct section. One end of each guide rib is located on the boundary between the first air duct section and the second air duct section, or the distance between one end of each guide rib adjacent to the boundary between the first air duct section and the second air duct section and the boundary between the first air duct section and the second air duct section is within 10 mm.

[0063] Preferably, if Fig.10 As shown, the plurality of guide ribs include a first guide rib 118, a plurality of second guide ribs 119, and a plurality of third guide ribs 120. The first guide rib 118 is located in the middle of the heat exchange air duct 102. The plurality of second guide ribs 119 are located on one side of the first guide rib 118, and the distance between one end of each second guide rib 119 away from the second air duct section and the first guide rib 118 is smaller than the distance between the other end of the second guide rib 119 and the first guide rib 118. The plurality of third guide ribs 120 are located on the other side of the first guide rib 118, and the distance between one end of each third guide rib 120 away from the second air duct section and the first guide rib 118 is smaller than the distance between the other end of the third guide rib 120 and the first guide rib 118. The second guide rib 119 and the third guide rib 120 are used to guide the airflow into the two bypass air ducts 104, respectively.

[0064] In some embodiments of the present invention, Figure 8 , Fig.12 As shown, the air conditioner indoor unit 100 further includes a swing blade device 121, which includes one or more swing blade groups arranged in sequence along the transverse direction, and each swing blade group includes a plurality of swing blades 122 arranged in sequence along the transverse direction in the heat exchange air duct 102. The plurality of swing blades 122 of each swing blade group can be connected by a swing blade connecting rod 123 to swing synchronously. There are at least two swing blade groups, which are used to supply air to the two bypass air ducts 104 respectively. The swing blade group is arranged in the first air duct section.

[0065] The swing blade device 121 also includes one or more drive transmission components, each of which drives the swing blades 122 of a swing blade group to swing synchronously. Figure 8As shown, in other embodiments of the present invention, the swing blade device 121 includes one or more handheld devices 124, and the handheld device 124 is used to drive each swing blade connecting rod 123 to move so as to make the corresponding swing blade 122 swing.

[0066] In some embodiments of the present invention, Fig. 9 As shown, a plurality of parallel rectifier ribs 125 are provided at the inlet of the bypass air duct 104, and the cross section of the rectifier rib 125 is a trapezoid, and the side with a larger area among the two parallel sides of the rectifier rib 125 faces the outlet of the bypass air duct 104. The width of the side with a larger area among the two parallel sides of the rectifier rib 125 is 1.8mm to 2.2mm. The width of the side with a smaller area among the two parallel sides of the rectifier rib 125 is 1.5mm to 2mm. The distance between each two adjacent rectifier ribs 125 is 14mm to 16mm. Preferably, the width of the side with a larger area among the two parallel sides of the rectifier rib 125 is 2mm. The width of the side with a smaller area among the two parallel sides of the rectifier rib 125 is 1.7mm. The distance between each two adjacent rectifier ribs 125 is 15mm. The rectifier rib 125 guides the airflow into the bypass air duct 104 and makes the airflow smoother without turbulence.

[0067] like Fig. 9 As shown, the volute tongue 109 includes a first section 126 disposed outside the crossflow impeller 107 of the crossflow fan, and a second section 127 connected to the first section 126 and used to guide the airflow passing through the crossflow impeller 107 to flow out. The straightening ribs 125 are parallel to the second section 127, or the angle between the straightening ribs 125 and the second section 127 is less than 5°.

[0068] In some embodiments of the present invention, the ratio between the area of ​​the first air outlet 103 and the total area of ​​the two second air outlets 106 is 2 to 3. The ratio between the length and width of the first air outlet 103 is 13 to 15. The ratio between the length and width of the second air outlet 106 is 5 to 7. Preferably, the ratio between the area of ​​the first air outlet 103 and the total area of ​​the two second air outlets 106 is 2.5. The ratio between the length and width of the first air outlet 103 is 14. The ratio between the length and width of the second air outlet 106 is 6.

[0069] In some embodiments of the present invention, the first air outlet 103 has a first edge and a second edge extending in the transverse direction, and the first edge is located in front of, above, or above the second edge. The lower edge of the second air outlet 106 is at the same height as the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is higher than the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is located between the second edge and the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is at the same height as the second edge of the first air outlet 103.

[0070] In some embodiments of the present invention, the lower edge of the second air outlet 106 is at the same height as the front end of the upper edge of the inlet of the bypass air duct 104, and the highest point of the upper edge of the inlet of the bypass air duct 104 is 8 mm to 12 mm higher than the lower edge of the second air outlet 106, preferably 10 mm.

[0071] In some embodiments of the present invention, the ratio between the transverse length of the first air outlet 103 and the transverse length of each air outlet cavity 105 is 18 to 22. Preferably, the ratio is 20. The width of each second air outlet 106 is equal to the transverse length of each air outlet cavity 105, or the width of each second air outlet 106 is more than 80% of the transverse length of each air outlet cavity 105.

[0072] In some embodiments of the present invention, Fig.11 and Fig.12 As shown, the air conditioner indoor unit 100 further includes a fan motor 133, an electric control box 134, a pipe pressure plate 135, a wall plate 136, a dust filter 137, a motor pressure cover 140, a human sensing module 141, another air guide plate arranged at the first air outlet 103 and inside the main air guide plate 110, etc. The fan motor 133 is used to drive the crossflow fan to work. The fan motor 133 and the electric control box 134 are arranged on the rear side of the part of the second air duct section that exceeds the first air duct section.

[0073] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in 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 recognized as covering all these other variations or modifications.

Claims

1. An air conditioner indoor unit, comprising a heat exchange air duct, wherein the outlet of the heat exchange air duct is a first air outlet, characterized in that: Also includes: One or two air outlet cavities, each of which is disposed on a lateral side of the heat exchange air duct, and each of which is indirectly connected to the heat exchange air duct at its lower end; One or two second air outlets, each of which is arranged on a front wall of the air outlet cavity and penetrates to the outside of the air conditioner indoor unit to supply air to the outside of the air conditioner indoor unit; each of the second air outlets is a long strip air outlet extending in the up-down direction; One or two upper and lower air guide plate groups, each of the upper and lower air guide plate groups includes a plurality of air guide plates; the plurality of air guide plates of each upper and lower air guide plate group are sequentially arranged in the up-down direction, and each of the upper and lower air guide plate groups is used to adjust the airflow out of the corresponding second air outlet in the up-down direction; One or two bypass air ducts, the bypass air ducts are used to receive the airflow in the heat exchange air duct after heat exchange with the heat exchanger, each of the bypass air ducts is arranged on a lateral side of the heat exchange air duct, each of the bypass air ducts is connected to the heat exchange air duct, and each of the air outlet cavities is connected to a bypass air duct.

2. The air conditioner indoor unit according to claim 1, characterized in that: The multiple air guide plates of each upper and lower air guide plate group are arranged in the corresponding air outlet cavity in sequence and at intervals along the up and down directions; the front end of each air guide plate is rotatably arranged around a horizontal axis in the corresponding second air outlet, or the front end of each air guide plate is rotatably arranged around a horizontal axis on the front cavity wall of the corresponding air outlet cavity.

3. The air conditioner indoor unit according to claim 2, characterized in that: The projection of each of the air guide plates on a plane perpendicular to the transverse direction is a first circular arc, and the first circular arc is arched upward; the diameters of the air guide plates in each of the upper and lower air guide plate groups are the same; among the two adjacent air guide plates, the rear end of the upper air guide plate is located above and behind the rear end of the lower air guide plate.

4. The air conditioner indoor unit according to claim 2, characterized in that: The number of the air guide plates of each air guide plate group is N, so as to divide the corresponding second air outlet into N+1 air outlet areas; The rear end of the top air guide plate can contact the rear wall of the air outlet cavity during rotation to close the uppermost air outlet area; when the rear end of the top air guide plate rotates to contact the rear wall of the air outlet cavity, the rear end of the top air guide plate is located above and behind the front end.

5. The air conditioner indoor unit according to claim 1, characterized in that: The projection of the rear cavity wall of the air outlet cavity on a plane perpendicular to the transverse direction is a second arc, and the center of the second arc is located on the front side or the front lower side of the second arc; the upper end of the rear cavity wall of the air outlet cavity is the highest point of the air outlet cavity, and the lower end is the lowest point of the air outlet cavity.

6. The air conditioner indoor unit according to claim 4, characterized in that: The plurality of air guide plates include a first air guide plate, a second air guide plate and a third air guide plate arranged in sequence from top to bottom; The straight-line distance between the front end and the rear end of the first air guide plate is a first straight-line distance, the straight-line distance between the front end and the rear end of the second air guide plate is a second straight-line distance, the straight-line distance between the front end and the rear end of the third air guide plate is a third straight-line distance, the ratio of the first straight-line distance to the third straight-line distance is 1.8 to 2.2, and the ratio of the second straight-line distance to the third straight-line distance is 1.3 to 1.7; The central angle corresponding to the third air guide plate is 21 degrees to 25 degrees.

7. The air conditioner indoor unit according to claim 1, characterized in that: Each of the upper and lower air guide plate groups further includes a rack and a plurality of gears meshing with the rack, each of the gears is fixedly connected to one of the air guide plates, and each of the gears is coaxial with the rotation axis of the corresponding air guide plate.

8. The air conditioner indoor unit according to claim 1, characterized in that: It also includes one or two air inducing devices, each of which is configured to force the air flow in the heat exchange air duct to enter one of the air outlet cavities and flow out from the corresponding second air outlet.

9. The air conditioner indoor unit according to claim 8, characterized in that: The air induced device comprises an air induced fan, and an air outlet of each of the air induced fans is located in the air outlet cavity. The air outlet is oriented vertically upward and is located at the rear side of the plurality of air guide plates.

10. The air conditioner indoor unit according to claim 1, characterized in that: The first air outlet is a long strip air outlet extending in the transverse direction; each of the second air outlets is provided with a plurality of partition strips arranged at intervals in the transverse direction to divide each of the second air outlets into a plurality of grille holes arranged in sequence in the transverse direction, and each of the grille holes extends in the up-down direction.

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