Indoor air-conditioning unit

Abstract

Disclosed is an indoor air-conditioning unit, comprising a housing, a fan assembly, and a heat exchanger. The housing comprises an air inlet housing and an air outlet housing. The fan assembly is arranged in the air inlet housing and is close to a first air inlet. The heat exchanger is arranged in the air outlet housing and is close to a first air outlet. The heat exchanger is spaced apart from the fan assembly. The air inlet housing comprises at least one first mounting portion, and the air outlet housing comprises at least one second mounting portion. The at least one second mounting portion respectively corresponds to the at least one first mounting portion, and is respectively fixedly connected to the at least one first mounting portion, such that the air inlet housing is fixedly connected to the air outlet housing.

Description

Air conditioner indoor unit

[0001] This application claims the priority of Chinese patent application No. 202311034629.3 filed on August 16, 2023, the priority of Chinese patent application No. 202322209323.9 filed on August 16, 2023, the priority of Chinese patent application No. 202322209422.7 filed on August 16, 2023, and the priority of Chinese patent application No. 202322209422.7 filed on August 16, 2023. The priority of the Chinese patent application with application number 202322209671.6 filed on August 16, 2023, the priority of the Chinese patent application with application number 202322209389.8 filed on August 16, 2023, the priority of the Chinese patent application with application number 202322209308.4 filed on August 16, 2023, the priority of the Chinese patent application with application number 2023222093 38.5, the priority of the Chinese patent application with application number 202322209407.2 filed on August 16, 2023, the priority of the Chinese patent application with application number 202322209289.5 filed on August 16, 2023, the priority of the Chinese patent application with application number 202322209442.4 filed on August 16, 2023, The priority of the Chinese patent application with application number 202322209358.2 filed on August 16, 2023, the priority of the Chinese patent application with application number 202322209721.0 filed on August 16, 2023, and the priority of the Chinese patent application with application number 202322209758.3 filed on August 16, 2023, all of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of air treatment, and in particular to an air conditioner indoor unit. Background Art

[0003] With the continuous advancement of technology and the improvement of people's living standards, air conditioners have become an indispensable appliance in daily life. Ducted air conditioners are a type of air conditioner that consists of an indoor unit and an outdoor unit, which are connected by a refrigerant connecting pipe to form a refrigerant circulation loop.

[0004] The indoor unit of the ducted air conditioner is installed in the ceiling or wall, and blows cold or hot air directly to each room through the air duct. The indoor unit of the ducted air conditioner has beautiful appearance, simple structure, and is easy to maintain, so it has been widely used.

[0005] Summary of the Invention

[0006] An air conditioner indoor unit is provided, comprising a housing, a fan assembly, and a heat exchanger. The housing comprises an air inlet housing and an air outlet housing. The air outlet housing is connected to the air inlet housing. The side of the air outlet housing remote from the air inlet housing is open to form a first air outlet. The side of the air inlet housing remote from the air outlet housing is open to form a first air inlet. The fan assembly is disposed within the air inlet housing, adjacent to the first air inlet. The heat exchanger is disposed within the air outlet housing, adjacent to the first air outlet. The heat exchanger is spaced apart from the fan assembly along the arrangement direction of the air inlet housing and the air outlet housing. The fan assembly is configured to draw air from outside the housing into the housing through the first air outlet, and to blow the drawn air toward the heat exchanger, so that the air exchanges heat with the heat exchanger before being discharged to the outside of the housing through the first air outlet. The air inlet housing comprises at least one first mounting portion, and the air outlet housing comprises at least one second mounting portion. The at least one second mounting portion corresponds to the at least one first mounting portion, and is fixedly connected to the at least one first mounting portion, so that the air inlet shell is fixedly connected to the air outlet shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG1 is a perspective view of an indoor unit of an air conditioner according to some embodiments;

[0008] FIG2 is a partial perspective view of an indoor unit of an air conditioner according to some embodiments;

[0009] FIG3 is a perspective view of an air intake device of an indoor unit of an air conditioner according to some embodiments;

[0010] FIG4 is a perspective view of an air outlet device of an indoor unit of an air conditioner according to some embodiments;

[0011] FIG5 is a perspective view of an air outlet device and a fan assembly of an indoor unit of an air conditioner according to some embodiments;

[0012] 6 is a perspective view of a mounting plate and a motor fixing plate of an air conditioner indoor unit according to some embodiments;

[0013] FIG7 is an exploded view of a mounting plate and a fan assembly of an air conditioner indoor unit according to some embodiments;

[0014] 8 is a perspective view of a first fixing member of an air conditioner indoor unit according to some embodiments;

[0015] 9 is a partial perspective view of a mounting plate of an indoor unit of an air conditioner according to some embodiments;

[0016] FIG10 is a perspective view of a hook and a hanging hole of an air conditioner indoor unit according to some embodiments;

[0017] FIG11 is a structural diagram of a second base of an air conditioner indoor unit according to some embodiments;

[0018] FIG12 is a structural diagram of a temperature sensor and a second back plate of an air conditioner indoor unit according to some embodiments;

[0019] FIG13 is a perspective view of an air outlet housing of an indoor unit of an air conditioner according to some embodiments;

[0020] FIG14 is a perspective view of a second base of an air conditioner indoor unit according to some embodiments;

[0021] FIG15 is a structural diagram of a second back plate of an air conditioner indoor unit according to some embodiments from another perspective;

[0022] FIG16 is a structural diagram of a first limiting rib of an air conditioner indoor unit according to some embodiments;

[0023] FIG17 is a structural diagram of a second limiting rib of an air conditioner indoor unit according to some embodiments;

[0024] FIG18 is a structural diagram of a first top plate of an air conditioner indoor unit according to some embodiments;

[0025] FIG19 is a structural diagram of a first limiting groove of an air conditioner indoor unit according to some embodiments;

[0026] FIG20 is a structural diagram of a casing of an air conditioner indoor unit according to some embodiments;

[0027] FIG21 is a perspective view of a duct member of an indoor unit of an air conditioner according to some embodiments;

[0028] FIG22 is a perspective view of an air duct member of an indoor unit of an air conditioner according to some embodiments from another perspective;

[0029] FIG23 is a perspective view of a first volute of an air conditioner indoor unit according to some embodiments;

[0030] FIG24 is a perspective view of the first volute of the air conditioner indoor unit according to some embodiments from another perspective;

[0031] FIG25 is a perspective view of a second volute of an air conditioner indoor unit according to some embodiments;

[0032] FIG26 is a perspective view of a heat exchanger, a fan assembly, and a controller of an air conditioner indoor unit according to some embodiments;

[0033] FIG27 is an exploded view of a heat exchanger and a water tray of an air conditioner indoor unit according to some embodiments;

[0034] FIG28 is a perspective view of a water receiving tray of an air conditioner indoor unit according to some embodiments;

[0035] FIG29 is a partial enlarged view of the circle A portion in FIG28;

[0036] FIG30 is an exploded view of an indoor unit of an air conditioner according to some embodiments;

[0037] FIG31 is a partial enlarged view of the circle B portion in FIG30;

[0038] FIG32 is a perspective view of a second support plate of an air conditioner indoor unit according to some embodiments;

[0039] FIG33 is a perspective view of a second fixing member of an air conditioner indoor unit according to some embodiments;

[0040] FIG34 is an exploded view of an air outlet device and a controller of an indoor unit of an air conditioner according to some embodiments;

[0041] FIG35 is an exploded view of a box cover of an air conditioner indoor unit according to some embodiments;

[0042] FIG36 is a perspective view of an air conditioner indoor unit with the second top plate removed according to some embodiments;

[0043] FIG37 is a partial enlarged view of the circle C portion in FIG36;

[0044] FIG38 is a perspective view of a controller of an indoor unit of an air conditioner according to some embodiments;

[0045] FIG39 is a perspective view of a second side panel of an air conditioner indoor unit according to some embodiments;

[0046] FIG40 is an exploded view of a controller of an indoor unit of an air conditioner according to some embodiments. DETAILED DESCRIPTION

[0047] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the embodiments described are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0048] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0049] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0050] When describing some embodiments, the word "connected" and its derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" can mean fixed connection, detachable connection, or integration; it can be directly connected or indirectly connected through an intermediate medium.

[0051] “At least one of A, B and C” has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C.

[0052] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0053] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0054] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0055] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0056] A ducted air conditioner is a type of air conditioner that includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by a refrigerant connecting pipe to form a refrigerant circulation loop.

[0057] Ducted air conditioners have indoor units installed in the ceiling or wall, blowing cool or hot air directly into each room through ducts, thus minimizing interior space. Their concealed installation minimizes the impact on interior aesthetics, and their simple structure and ease of maintenance have led to their widespread use.

[0058] However, the indoor unit of a ducted air conditioner is typically a single-piece structure, which is bulky and heavy, making it difficult to transport indoors and difficult to install. For this reason, some ducted air conditioners use a two-section indoor unit, secured together using multiple bolts and screw holes. This connection method is complex. Alternatively, the two parts of the indoor unit can be secured together using a snap-on connection, but this poses a risk of a loose connection and falling.

[0059] Based on this, some embodiments of the present disclosure provide an air conditioner indoor unit 100. For example, the air conditioner indoor unit 100 is a ducted air conditioner indoor unit 100.

[0060] In some embodiments, as shown in FIG1 , an air conditioner indoor unit 100 includes a housing 10 fixedly connected to a ceiling or wall of a room. The housing 10 defines a first air inlet 21 (i.e., the air inlet) and a first air outlet 31 (i.e., the air outlet) that are disposed opposite each other. For example, the first air outlet 31 is disposed opposite the first air inlet 21 along the front-to-back direction of the housing 10, with the first air outlet 31 located in front of the first air inlet 21.

[0061] In some embodiments, as shown in FIG2 , the air conditioner indoor unit 100 further includes a fan assembly 40, which is disposed within the housing 10 and adjacent to the first air inlet 21. The fan assembly 40 is configured to draw air from outside the housing 10 into the housing 10 through the first air inlet 21 and to blow the air from the housing 10 out of the housing 10 through the first air outlet 31.

[0062] In some embodiments, as shown in FIG1 , the air conditioner indoor unit 100 further includes a heat exchanger 50 disposed within the housing 10. The heat exchanger 50 is spaced apart from the fan assembly 40 in the front-to-back direction of the air conditioner indoor unit 100. The heat exchanger 50 is disposed near the first air outlet 31. Thus, air drawn in through the first air inlet 21 by the fan assembly 40 exchanges heat with the heat exchanger 50 as it passes through the heat exchanger 50 before being discharged from the first air outlet 31.

[0063] In some embodiments, as shown in FIG1 , the housing 10 includes an air inlet housing 20 . A first air inlet 21 is formed on the air inlet housing 20 . A fan assembly 40 is disposed within the air inlet housing 20 . The air inlet housing 20 and the fan assembly 40 together constitute at least a portion of an air inlet device 23 . The air inlet housing 20 includes a first mounting portion 22 .

[0064] In some embodiments, as shown in FIG1 , the housing 10 further includes an air outlet housing 30 . A first air outlet 31 is formed on the air outlet housing 30 , and a heat exchanger 50 is disposed within the air outlet housing 30 . The air outlet housing 30 and the heat exchanger 50 together constitute at least a portion of an air outlet device 33 . The air outlet housing 30 includes a second mounting portion 32 . The second mounting portion 32 corresponds to the position of the first mounting portion 22 and is fixedly connected to the first mounting portion 22 , thereby achieving a fixed connection between the air inlet housing 20 and the air outlet housing 30 , and thus, a fixed connection between the air inlet device and the air outlet device.

[0065] In other words, the air conditioning indoor unit 100 includes an air inlet device 23 and an air outlet device 33. The air outlet device 33 is arranged on one side (such as the front side) of the air inlet device 23 and is connected to the air inlet device 23. The air inlet device 23 includes an air inlet housing 20 and a fan assembly 40. The air outlet device 33 includes an air outlet housing 30 and a heat exchanger 50. In this way, the air sucked into the air inlet device 23 exchanges heat with the heat exchanger 50 under the action of the fan assembly 40 and flows out from the first air outlet 31 of the air outlet device 33. In this way, the internal space of the air conditioning indoor unit 100 can be reasonably utilized, which is conducive to reducing the volume of the air conditioning indoor unit 100, thereby facilitating the transportation and installation of the air conditioning indoor unit 100.

[0066] In some embodiments, as shown in Figures 2 to 4, the first mounting portion 22 and the second mounting portion 32 are configured as mounting holes. A first fastener (e.g., a bolt) is passed through the first mounting portion 22 and the second mounting portion 32 to achieve a detachable connection between the air inlet device 23 and the air outlet device 33. This facilitates connection and disconnection of the air inlet device 23 and the air outlet device 33, and facilitates transportation and maintenance of the air conditioner indoor unit 100.

[0067] In some embodiments, as shown in Figure 2, the air inlet housing 20 further includes two first flanges 24. The two first flanges 24 are respectively arranged at one end of the opposite side walls (such as the left and right side walls) of the air inlet housing 20 close to the air outlet housing 30. The two first flanges 24 extend in directions away from each other. The first mounting portion 22 is provided on the first flange 24, and the first flange 24 is fixedly connected to the air outlet housing 30 through the first mounting portion 22 and the second mounting portion 32. In some embodiments, the air inlet housing 20 may include multiple first flanges 24. For example, the air inlet housing 20 may include three, four or more first flanges 24.

[0068] It can be understood that the first flange 24 can increase the contact area between the air inlet shell 20 and the air outlet shell 30 , thereby improving the stability and reliability of the connection between the air inlet shell 20 and the air outlet shell 30 .

[0069] In some embodiments, as shown in FIG2 , the air inlet housing 20 includes a plurality of first mounting portions 22. At least two of the plurality of first mounting portions 22 are disposed on one first flange 24 and are spaced apart in the vertical direction. At least another two of the plurality of first mounting portions 22 are disposed on another first flange 24 and are spaced apart in the vertical direction.

[0070] The air outlet housing 30 includes a plurality of second mounting portions 32, which correspond to the plurality of first mounting portions 22 and are fixedly connected to the plurality of first mounting portions 22. This improves the reliability of the connection between the air outlet device and the air inlet device.

[0071] In some embodiments, the air inlet shell includes at least one first mounting portion, and the air outlet shell includes at least one second mounting portion; the at least one second mounting portion corresponds to the at least one first mounting portion, and is respectively fixedly connected to the at least one first mounting portion, so that the air inlet shell is fixedly connected to the air outlet shell.

[0072] In some embodiments, the at least one first mounting portion includes a plurality of first mounting portions; a portion of the plurality of first mounting portions is disposed on one of the two first flanges, and another portion of the plurality of first mounting portions is disposed on the other of the two first flanges.

[0073] In some embodiments, a portion of the multiple first mounting portions are spaced apart and arranged on one of the two first flanges along the height direction of the casing; and another portion of the multiple first mounting portions are spaced apart and arranged on the other of the two first flanges along the height direction of the casing.

[0074] In some embodiments, as shown in FIG. 5 , the fan assembly 40 includes an air duct member 41 . The air duct member 41 is located on a side (eg, a rear side) of the heat exchanger 50 close to the first air inlet 21 .

[0075] In some embodiments, as shown in FIG. 5 , the fan assembly 40 further includes a motor 42 , and the motor 42 and the duct member 41 are spaced apart from each other along the width direction of the air conditioning indoor unit 100 .

[0076] 5 , the fan assembly 40 further includes a fan 43 disposed within the duct member 41 and in transmission connection with the motor 42. For example, the fan 43 is in transmission connection with the output shaft of the motor 42, and the motor 42 is configured to drive the fan 43 to rotate.

[0077] In some embodiments, as shown in FIG. 5 , the fan assembly 40 further includes a motor bracket 44 , and the motor 42 is disposed on the motor bracket 44 and fixedly connected to the motor bracket 44 , thereby facilitating fixed installation of the motor 42 .

[0078] In some embodiments, as shown in FIG5 , the fan assembly 40 further includes a mounting plate 45 , on which the air duct member 41 and the motor bracket 44 are mounted. The mounting plate 45 is disposed on a side wall of the air outlet housing near the air inlet housing and is connected to the air outlet housing 30 . For example, the mounting plate 45 is detachably connected to the air outlet housing 30 .

[0079] It can be understood that the air duct member 41 and the motor bracket 44 are fixedly connected to the mounting plate 45, and the fan assembly 40 can form a whole, thereby facilitating the installation of the fan assembly 40 into the air-conditioning indoor unit 100, or removing it from the air-conditioning indoor unit 100, which is beneficial to improving the assembly efficiency of the air-conditioning indoor unit 100.

[0080] In some embodiments, as shown in FIG5 , the fan assembly 40 includes two duct members 41 and two fans 43. The two fans 43 are respectively disposed in the two duct members 41. A motor 42 is disposed between the two duct members 41. The motor 42 includes two output shafts, each of which is in transmission connection with the two fans 43. The motor 42 is configured to drive the fans 43 in the two duct members 41 to rotate, thereby improving the heat exchange efficiency of the heat exchanger 50.

[0081] In some embodiments, the fan assembly 40 includes multiple fans 43 and multiple air duct parts 41. The motor 42 can simultaneously drive the multiple fans 43 in the multiple air duct parts 41 to rotate, thereby increasing the air output of the fan assembly 40 without increasing the number of motors 42, which is beneficial to improving the space utilization in the casing and reducing costs.

[0082] In some embodiments, as shown in FIG6 , the motor bracket 44 includes two motor fixing plates 800 and a first support plate 820 . The two motor fixing plates 800 are disposed on the mounting plate 45 , fixedly connected to the mounting plate 45 , and spaced apart along the width direction (i.e., left and right directions) of the housing. The two motor fixing plates 800 are connected to the two ends (e.g., left and right ends) of the first support plate 820 , respectively. The two motor fixing plates 800 are fixedly connected to the two ends (e.g., axial ends) of the motor 42 , respectively.

[0083] In some embodiments, the motor bracket 44 may include a plurality of motor fixing plates 800 . For example, the motor bracket 44 may include three, four, or more motor fixing plates 800 .

[0084] It will be appreciated that the above arrangement allows the mounting plate 45, the motor fixing plate 800, and the first support plate 820 to form a single unit, thereby improving the structural strength of the mounting plate 45 and the motor bracket 44. The motor fixing plate 800 provides fixed support for both axial ends of the motor 42, thereby improving the reliability of the motor 42 installation and the stability of the motor 42 operation.

[0085] In some embodiments, as shown in FIG6 , the motor fixing plate 800 includes multiple first folded edges 801. The ends of one of the two motor fixing plates 800 along the height direction (i.e., the vertical direction) of the housing are bent toward the other motor fixing plate 800 to form multiple first folded edges 801. This increases the structural strength of the motor fixing plate 800. Furthermore, the first folded edges 801 facilitate user gripping of the motor fixing plate 800, thereby improving assembly efficiency of the air conditioner indoor unit.

[0086] In some embodiments, the first folded edge 801 and the motor fixing plate 800 are integrated into one piece, thereby facilitating the processing and manufacturing of the motor fixing plate 800 .

[0087] In some embodiments, as shown in FIG6 , the motor fixing plate 800 further includes a second flange 802. The end of one of the two motor fixing plates 800, which is closer to the air outlet housing, is bent away from the other motor fixing plate 800 to form the second flange 802. The second flange 802 is welded to the mounting plate 45. The second flange 802 and the motor fixing plate 800 are integrally formed.

[0088] It is understood that the second flange 802 can increase the contact area between the motor fixing plate 800 and the mounting plate 45, thereby improving the reliability and stability of the welding between the motor fixing plate 800 and the mounting plate 45. In addition, the provision of the second flange 802 is conducive to improving the structural strength of the motor fixing plate 800.

[0089] In addition, the motor bracket 44 and the mounting plate 45 are fixedly connected by welding, which can avoid punching or drilling on the motor bracket 44 and the mounting plate 45, thereby improving the structural strength of the motor bracket 44 and the mounting plate 45, and improving the reliability of the connection between the motor bracket 44 and the mounting plate 45.

[0090] In some embodiments, as shown in FIG6 , the motor fixing plate 800 further includes a plurality of positioning posts 810 . The plurality of positioning posts 810 are disposed on the second flange 802 and are located at an end of the second flange 802 proximal to the mounting plate 45 . The mounting plate 45 further includes a plurality of positioning slots 840 . The plurality of positioning slots 840 correspond to the plurality of positioning posts 810 , and the plurality of positioning posts 810 are positioned and matched with the plurality of positioning slots 840 . The matching of the positioning posts and the positioning slots allows for pre-positioning of the assembly connection between the mounting plate 45 and the motor fixing plate 800 , thereby facilitating improved assembly efficiency and accuracy of the mounting plate 45 and the motor fixing plate 800 .

[0091] In some embodiments, as shown in FIG. 6 , the motor fixing plate 800 further includes a plurality of first reinforcing ribs 811 , which are spaced apart in the up-down direction, thereby improving the structural strength of the motor fixing plate 800 .

[0092] In some embodiments, as shown in FIG. 7 , the fan assembly 40 further includes a first fixing member 502 , and the motor 42 is fixed to the motor bracket 44 via the first fixing member 502 .

[0093] In some embodiments, as shown in FIG7 and FIG6 , the motor bracket 44 further includes two limit plates 501. The two limit plates 501 are respectively connected to the ends of the two motor fixing plates 800 away from the mounting plate 45, and are respectively located at positions close to the axial sides of the motor 42. The first fixing member 502 is engaged with the two limit plates 501 to form two annular engaging structures, and the two axial ends of the motor 42 are respectively engaged in the two engaging structures, thereby limiting the movement of the motor 42 in its axial and radial directions. For example, the limit plates 501 and the corresponding motor fixing plates 800 are constructed as an integral part.

[0094] In some embodiments, the motor bracket 44 may include a plurality of limiting plates 501 . For example, the motor bracket 44 may include three, four, or more limiting plates 501 .

[0095] In some embodiments, as shown in FIG6 , the limiting plate 501 includes a first limiting portion 5011 and a second limiting portion 5012. The first limiting portion 5011 and the second limiting portion 5012 are spaced apart in the vertical direction, with the first limiting portion 5011 located above the second limiting portion 5012. A first accommodating portion 5013 open toward the motor 42 is defined between the first limiting portion 5011 and the second limiting portion 5012.

[0096] In some embodiments, as shown in FIG8 , the first fixing member 502 includes two sub-limiting members 508 . The two sub-limiting members 508 are respectively engaged with the two limiting plates 501 .

[0097] The sub-limiting member 508 includes a third limiting portion 503 and a fourth limiting portion 504. The third limiting portion 503 engages with the first limiting portion 5011, and the fourth limiting portion 504 engages with the second limiting portion 5012. A second receiving portion 507 is defined between the third limiting portion 503 and the fourth limiting portion 504. The first receiving portion 5013 and the second receiving portion 507 together form the engaging structure. This improves the operational stability of the motor 42 and facilitates removal and installation of the motor 42.

[0098] In some embodiments, the first fixing member 502 may include a plurality of sub-limiting members 508 . For example, the first fixing member 502 may include three, four, or more sub-limiting members 508 .

[0099] 7 and 8 , the motor 42 includes at least one second limiting groove 500 . The at least one second limiting groove 500 is disposed at an axial end of the motor 42 and is spaced apart along the circumference of the motor 42 .

[0100] The first fixing member 502 further includes at least one limiting protrusion 505. The at least one limiting protrusion 505 is disposed on at least one of the third limiting portion 503 and the fourth limiting portion 504 and corresponds to the position of at least one second limiting slot 500. The limiting protrusion 505 is disposed in the corresponding second limiting slot 500 and is configured to cooperate with the corresponding second limiting slot 500 to limit relative movement between the motor 42 and the third limiting portion 503, thereby preventing the motor 42 from disengaging from the first fixing member 502 and the limiting plate 501.

[0101] In some embodiments, as shown in FIG. 8 , the first fixing member 502 further includes a connecting bar 510 , and two ends of the connecting bar 510 are respectively connected to the two sub-limiting members 508 .

[0102] 9 and 10 , the mounting plate 45 further includes a hook 452 . The hook 452 is open downward to form a third limiting groove 506 .

[0103] As shown in Figures 11 and 12, the air outlet housing 30 also includes a hanging hole 35. This hanging hole 35 is located on a side wall of the air outlet housing 30 (i.e., the second back panel 362, see Figure 4) near the air inlet housing 20 and extends through the side wall along its thickness. Referring to Figure 10, a hook 452 is located within the hanging hole 35, and the third retaining groove 506 engages with the side wall of the air outlet housing 30 near the air inlet housing 20.

[0104] It is understood that by placing the hook 452 in the hanging hole, it can guide the assembly of the mounting plate and the air outlet housing, thereby facilitating the assembly of the mounting plate 45 on the air outlet housing 30. The third limiting groove 506 cooperates with the side wall of the air outlet housing 30 to limit the relative position of the mounting plate and the air outlet housing, thereby improving the firmness and accuracy of the connection between the mounting plate 45 and the air outlet housing 30.

[0105] In some embodiments, the hanging hole 35 is in a teardrop shape, a trapezoidal shape, a rectangular shape, or a triangular shape.

[0106] In some embodiments, as shown in FIG12 , the upper end of the hanging hole 35 is larger than the lower end of the hanging hole 35 in the width direction of the housing. Thus, during assembly of the mounting plate 45 to the air outlet housing, the hook 452 can be inserted into the hanging hole 35 from the upper end and then slid downward, causing the hook 452 to abut against the two side walls of the lower end of the hanging hole 35. This improves the reliability of the hook 452 and the hanging hole 35, thereby improving the stability of the connection between the fan assembly 40 and the air outlet housing 30.

[0107] In some embodiments, as shown in FIG11 , the air outlet housing 30 includes a plurality of hanging holes 35, each corresponding to the two duct members 41. Accordingly, the mounting plate 45 includes a plurality of hooks 452. These hooks 452 are positioned in the corresponding hanging holes 35, thereby improving the reliability of the connection between the air outlet housing and the mounting plate.

[0108] For example, the air outlet housing 30 includes eight hanging holes 35, four of which are arranged along the circumference of the second air outlet 310 (described in detail later) of one duct member 41, and the other four hanging holes 35 are arranged along the circumference of the second air outlet 310 of another duct member 41. The mounting plate 45 includes eight hooks 452 corresponding to the eight hanging holes, and the hooks 452 are disposed in the hanging holes 35.

[0109] It should be noted that the air outlet housing 30 may also include two hanging holes 35, and the mounting plate 45 may include two hooks 452 corresponding to the two hanging holes, which is not limited in the present disclosure.

[0110] In some embodiments, as shown in Figures 5 and 6, the mounting plate 45 includes multiple third mounting portions 451, the air outlet housing 30 includes multiple fourth mounting portions 34, and the multiple third mounting portions 451 correspond to the multiple fourth mounting portions 34 and are fixedly connected to the multiple fourth mounting portions.

[0111] For example, the third mounting portion 451 and the fourth mounting portion 34 are configured as mounting holes. Multiple third mounting portions 451 are positioned corresponding to multiple fourth mounting portions 34. A third mounting portion 451 is fixedly connected to a corresponding fourth mounting portion 34 via bolts, facilitating installation and removal of the mounting plate 45 from the air outlet housing 30.

[0112] During the installation process of the mounting plate 45 and the air outlet shell 30, the hook 452 and the hanging hole 35 can play a guiding role. The mounting plate 45 and the air outlet shell 30 are first positioned by the hook 452 and the hanging hole 35, and then fixedly connected by the third mounting part 451 and the fourth mounting part 34, which is beneficial to improve the installation efficiency and connection reliability of the mounting plate 45 and the air outlet shell 30.

[0113] In some embodiments, as shown in FIG13 , the air inlet housing 20 includes a first base 25. The first base 25 includes a first bottom plate 251 and two oppositely disposed first side plates 252. The two first side plates 252 respectively connect the left and right ends of the first bottom plate 251. For example, along the width direction of the housing, the two first side plates respectively connect the opposite ends of the first bottom plate.

[0114] In some embodiments, as shown in FIG13 , the air inlet housing 20 further includes a first back plate 26. The first back plate 26 is disposed behind the first bottom plate 251 and the first side plate 252 and is detachably connected to the first bottom plate 251 and the first side plate 252. The first air inlet 21 is disposed in the first back plate 26 and extends through the first back plate 26 along its thickness.

[0115] In some embodiments, as shown in FIG13 , the air inlet housing 20 further includes a first top panel 27 . The first top panel 27 is disposed on top of the first side panel 252 and is detachably connected to the first top panel 27 . Thus, if a malfunction occurs in the fan assembly 40 , the first top panel 27 can be removed for repair.

[0116] In some embodiments, the first base 25 is a single piece. The top of the first base 25 is open, allowing for detachable connection to the first top plate 27. The front and rear sides of the first base 25 are open, allowing for easy delivery of air drawn into the air inlet housing 20 to the air outlet housing 30.

[0117] In some embodiments, as shown in Figures 2 and 13, the first back plate 26 includes a plate body 200 and an air ring 201. The first air inlet 21 is formed in the plate body 200. The air ring 201 is arranged on a side of the plate body 200 away from the air outlet shell. The air ring 201 is arranged around the first air inlet 21 and extends in a direction away from the air outlet shell, so that it can play a role in guiding the wind, that is, changing the air inlet direction of the first air inlet 21. For example, the first air inlet 21 is elliptical, and the air ring 201 is an elliptical ring plate, so that the air inlet area of ​​the first air inlet 21 can be expanded without increasing the material used for the air inlet ring, thereby increasing the air intake volume.

[0118] In some embodiments, as shown in Figures 2 and 13, the left-right dimension of the first air inlet 21 is greater than the left-right length of the duct member 41. In this way, the air inhaled from the first air inlet 21 can enter the duct member 41 from the second air inlet 230 on both sides of the duct member 41, thereby expanding the air inlet area and further improving the heat exchange efficiency of the heat exchanger 50.

[0119] For example, a left-right dimension of the first air inlet 21 is greater than a top-bottom dimension of the first air inlet 21 .

[0120] In some embodiments, the plate body 200 and the air ring 201 are integrally formed, thereby facilitating the production of the first back plate 26 .

[0121] In some embodiments, as shown in Figures 5 and 14, the air outlet housing 30 includes a second base 36. The second base 36 includes a second bottom plate 361 and a second back plate 362. The second back plate 362 is connected to the end of the second bottom plate 361 that is adjacent to the air inlet housing. The second mounting portion 32 is disposed on the second back plate 362. The air inlet housing 20 is fixedly connected to the second back plate 362.

[0122] For example, the second base 36 is an integral piece, which can improve the structural strength and rigidity of the second base 36 and also improve the production efficiency of the second base 36 .

[0123] In some embodiments, as shown in Figures 5 and 14, the air outlet housing 30 further includes two second side panels 37, which are respectively disposed on both sides of the second bottom plate 361 along the width direction of the housing and are detachably connected to the second bottom plate 361. The two second side panels 37 are respectively disposed on both sides of the second back plate 362 along the width direction of the housing and are detachably connected to the second back plate 362.

[0124] In some embodiments, as shown in FIG5 , the air outlet housing 30 further includes a second top plate 38, which is disposed on top of the two second side plates 37 and is detachably connected to the two second side plates 37. Thus, when the heat exchanger 50 malfunctions, the second top plate 38 can be removed, thereby facilitating maintenance of the heat exchanger 50.

[0125] In some embodiments, as shown in FIG1 , the side of the air outlet housing 30 facing away from the air inlet housing 20 is open to form a first air outlet 31. Specifically, the second top panel 38, the second bottom panel 361, and the front sides of the two second side panels 37 form the first air outlet 31, so that the first air outlet can be arranged opposite the first air inlet, facilitating air intake and exhaust for the air conditioner indoor unit.

[0126] In some embodiments, as shown in Figure 14 , the second base 36 further includes a flange portion 400 , which connects to the end of the second bottom plate 361 away from the second back plate 362 . The flange portion 400 extends along the width of the housing and bends upward. The upper edge of the flange portion 400 forms the lower end of the first air outlet 31 . For example, the flange portion 400 and the second bottom plate 361 are integrally formed.

[0127] It is understood that the flange portion 400 is bent relative to the second bottom plate 361 to limit the airflow direction of the first air outlet 31. In addition, the heat exchanger 50 is disposed on the second base 36, and condensed water is generated during operation of the heat exchanger 50, which drips downward into the second base. In this case, the flange portion 400 can prevent the condensed water from overflowing from the first air outlet 31, thereby improving the reliability of the operation of the air conditioner indoor unit 100.

[0128] In some embodiments, at least one of the first base 25 and the second base 36 is a metal structure, which facilitates rapid prototyping of the first base 25 and the second base and improves the manufacturing efficiency of the first base 25 and the second base 36. For example, at least one of the first base and the second base is constructed as an integral piece made of metal material.

[0129] In some embodiments, the air inlet housing 20 is smaller than the air outlet housing 30 in the width direction of the housing. This allows the air inlet housing 20 to be installed in smaller spaces. For example, the air inlet housing 20 can be installed on the beams of a triangular roof, which improves the installation adaptability of the air conditioner indoor unit.

[0130] In some embodiments, as shown in Figures 11 and 14 , the air outlet housing 30 further includes two ventilation holes 401. The two ventilation holes 401 are spaced apart and extend through the second backplate 362 along its thickness. The two ventilation holes 401 correspond to the positions of the two fans 43 in the fan assembly 40. The fans 43 can deliver the inhaled air through the ventilation holes 401 to the heat exchanger 50 in the air outlet housing 30.

[0131] In some embodiments, as shown in Figure 6, the mounting plate 45 further includes two vents 850. The two vents 850 correspond to the two ventilation holes 401. In this way, the mounting plate 45 can be prevented from blocking the air flow between the fan assembly 40 and the interior of the housing.

[0132] In some embodiments, the air outlet housing 30 includes multiple ventilation holes 401, and the fan assembly 40 includes multiple fans 43. The multiple ventilation holes 401 correspond to the positions of the multiple fans 43. This further increases the air supply speed of the fan assembly 40, thereby improving the heat exchange efficiency of the heat exchanger 50. In some embodiments, the mounting plate 45 may include multiple ventilation openings 850, each corresponding to the multiple ventilation holes 401. For example, the mounting plate 45 may include three, four, or more ventilation openings 850.

[0133] In some embodiments, as shown in FIG14 , the air outlet housing 30 further includes two second folded edges 402. The two second folded edges 402 are respectively located at edges of the two ventilation holes 401 away from each other.

[0134] In some embodiments, as shown in FIG7 , the duct member 41 can be configured as a volute, and the duct member 41 includes two second air inlets 230 and a second air outlet 310. The left and right sides of the duct member 41 are open to form two oppositely disposed second air inlets 230, which are interconnected. The front of the duct member 41 is open to form a second air inlet 230, which is interconnected with the two second air inlets 230. The second air outlet 310 is disposed opposite the vent 401 in the front-to-back direction, and the second folded edge 402 cooperates with the edge guide of the second air outlet 310 to ensure uniform airflow at the junction of the second air outlet 310 and the vent 401.

[0135] In some embodiments, the second back panel 362 is detachably connected to the air inlet housing 20, and the second back panel 362 is also detachably connected to the fan assembly 40, so that when the air-conditioning indoor unit 100 is installed, the air outlet housing 30, the air inlet housing 20 and the fan assembly 40 can respectively enter the installation space on the roof through the maintenance port.

[0136] In some embodiments, as shown in Figures 11 and 12, the air conditioning indoor unit 100 also includes a temperature sensor 410, which is located on one side of the ventilation hole 401 (such as one side in the left and right directions) and is configured to detect the temperature of the wind. In this way, according to the actual temperature value detected by the temperature sensor 410, the air conditioning indoor unit 100 can adjust the temperature of the supply air in real time.

[0137] In some embodiments, as shown in FIG15 , the temperature sensor 410 includes a third engaging portion 411. The second back plate 362 includes a fourth engaging portion 3622. The fourth engaging portion 3622 engages with the third engaging portion 411 to detachably connect the temperature sensor 410 to the second back plate 362, thereby facilitating installation and removal of the temperature sensor 410.

[0138] In some embodiments, as shown in Figures 11 and 15 , the second back plate 362 further includes a mounting boss 412. A portion of the second back plate 362 protrudes toward the air inlet housing 20 to form the mounting boss 412. The fourth clamping portion 3622 is disposed on the mounting boss 412.

[0139] For example, the third clamping portion 411 is configured as a buckle, and the fourth clamping portion 3622 is configured as a clamping hole. The buckle and the clamping hole are engaged with each other, thereby achieving a detachable connection between the temperature sensor 410 and the second back plate 362 .

[0140] In some embodiments, as shown in FIG5 , the second back plate 362 includes a plurality of limiting ribs 210 disposed around the fan assembly 40. The limiting ribs 210 cooperate with the air inlet housing 20 to limit the position in the vertical direction and the left-right direction. For example, the limiting ribs 210 may be trapezoidal in shape, thereby facilitating the front-to-back assembly of the air inlet housing and the air outlet housing.

[0141] In addition, the limiting ribs 210 can pre-position the assembly of the air inlet housing and the air outlet housing, thereby improving assembly efficiency.

[0142] In some embodiments, the limiting ribs 210 play a role of limiting cooperation, thereby preventing the relative positions of the air outlet housing 30 and the air inlet housing 20 from shifting.

[0143] In some embodiments, as shown in Figures 11 and 16, the plurality of limiting ribs 210 include a plurality of first limiting ribs 211, which are respectively located on the left and right sides of the fan assembly 40. The first limiting ribs 211 include first guiding slopes 220. The left and right edges of the air inlet housing 20 are guided by the first guiding slopes 220 and cooperate with the first limiting ribs 211 in the left and right directions.

[0144] In some embodiments, the plurality of first limiting ribs 211 include four first limiting ribs 211. Two first limiting ribs 211 are located on the left side of the fan assembly 40, and the remaining two first limiting ribs 211 are located on the right side of the fan assembly 40. The first limiting ribs 211 on the left and right sides of the fan assembly 40 are symmetrically arranged, so that the air inlet housing 20 and the air outlet housing 30 can be mutually limited in the left-right direction.

[0145] In some embodiments, the first guide slope 220 is configured to guide the left and right sides of the air inlet housing 20 , which can facilitate the assembly of the air inlet housing 20 and the air outlet housing 30 .

[0146] 11 and 17 , the plurality of limiting ribs 210 include a plurality of second limiting ribs 212 , which are respectively located on the upper and lower sides of the fan assembly 40 . The second limiting ribs 212 include second guiding slopes 221 .

[0147] In some embodiments, as shown in Figures 18 and 19, the air inlet housing 20 includes a plurality of first limiting grooves 240. These first limiting grooves 240 are disposed at the edges of the first top plate 27 and the first bottom plate 251. These first limiting grooves 240 correspond to the positions of the second limiting ribs 212. Guided by the second guide slopes 221, the first limiting grooves 240 cooperate with the second limiting ribs 212 in a vertically limiting manner.

[0148] For example, the plurality of second limiting ribs 212 include four second limiting ribs 212. Two second limiting ribs 212 are disposed near the upper end of the second back plate 362, and the remaining two second limiting ribs 212 are disposed near the lower end of the second back plate 362. Alternatively, the plurality of second limiting ribs 212 include two second limiting ribs 212, both of which are disposed near the upper end of the second back plate 362.

[0149] It can be understood that the multiple limiting ribs 210 are limited and matched with the multiple first limiting grooves 240. During the process of the multiple limiting ribs 210 and the multiple first limiting grooves 240 matching, the multiple limiting ribs 210 play a guiding role, which can facilitate the assembly of the multiple limiting ribs 210 and the air inlet shell 20, and can also make the limiting ribs 210 and the first limiting grooves 240 limited and matched, thereby preventing the air inlet shell 20 and the air outlet shell 30 from being misaligned, which is beneficial to improving the stability of the air inlet shell 20 and the air outlet shell 30.

[0150] In some embodiments, as shown in FIG20 , the air inlet housing 20 includes a first alignment mark 250, and the air outlet housing 30 includes a second alignment mark 260. The first alignment mark 250 and the second alignment mark 260 are arranged relative to each other in the front-to-back direction. The first alignment mark 250 and the second alignment mark 260 are configured to indicate the relative assembly position of the air inlet housing 20 and the air outlet housing 30, so as to facilitate the positioning and matching between the air inlet housing 20 and the air outlet housing 30. For example, the first alignment mark is provided on the top surface of the air inlet housing 20 and is located at the midline in the left-right direction, and the second alignment mark is provided on the top surface of the air outlet housing 30 and is located at the midline in the left-right direction.

[0151] For example, the first alignment mark 250 and the second alignment mark 260 can be set as indicator arrows, so that when installing the air inlet shell 20 and the air outlet shell 30, the arrow marks can be used for positioning and installation, thereby improving the installation efficiency of the air conditioner indoor unit 100.

[0152] It should be noted that during the assembly process of the air inlet shell 20 and the air outlet shell 30, the air inlet shell 20 and the air outlet shell 30 are initially aligned through the first alignment mark 250 and the second alignment mark 260, and then the air inlet shell 20 and the air outlet shell 30 are fixedly connected using fixing bolts, which is beneficial to improving the assembly efficiency of the air inlet shell 20 and the air outlet shell 30.

[0153] In some embodiments, a noise reduction sponge is attached to the inside of the air inlet housing 20 to absorb the noise of the incoming air. Noise reduction sponges are attached to the four sides of the air inlet housing 20 to absorb the noise generated by the fan 43.

[0154] In some embodiments, as shown in FIG5 and FIG21 , the air duct member 41 is configured as a volute. A fan 43 is disposed in the air duct member 41 and is in transmission connection with the motor 42 .

[0155] In some embodiments, as shown in FIG21 , the duct member 41 further includes a first volute 301 and a second volute 302. The first volute 301 is connected to the second volute 302 and is disposed above the second volute 302. The first volute 301 and the second volute 302 together define a second air inlet 230 and a second air outlet 310. The fan 43 is configured to draw air from the second air inlet 230 and deliver air from the second air outlet 310.

[0156] In some embodiments, as shown in FIG22 , the air duct member 41 further includes an air guide 320. The air guide 320 is disposed on at least one of the first volute 301 and the second volute 302 and is disposed near the second air outlet 310. The air guide 320 is configured to guide air at the second air outlet 310, thereby uniformly supplying air from the fan assembly 40 and improving the heat exchange efficiency of the heat exchanger.

[0157] In some embodiments, as shown in FIG22 , the air guide 320 is disposed on the upper surface of the bottom wall of the first volute 301 , and / or, the air guide 320 is disposed on the lower surface of the top wall of the second volute 302 .

[0158] It is understandable that the air guide 320 provided in the first volute 301 can guide the air at the upper surface of the second air outlet 310, the air guide 320 can increase the air outlet area at the first volute 301, and can make the air supply at the upper surface of the second air outlet 310 uniform. Similarly, the air guide 320 provided in the second volute 302 can guide the air at the lower surface of the second air outlet 310, the air guide 320 can increase the air outlet area at the second volute 302, and can make the air supply at the lower surface of the second air outlet 310 uniform.

[0159] In some embodiments, as shown in Figure 22, the air duct member 41 includes at least two air guides 320. The at least two air guides 320 are spaced apart and arranged on at least one of the first volute 301 and the second volute 302 along the left-right direction (i.e., the width direction of the casing, i.e., the width direction of the air conditioner indoor unit). In this way, the air supply of the second air outlet 310 can be further uniformed. At least two air guides 320 are spaced apart and arranged in the left-right direction, thereby reducing the disturbance of the air supply of the air guide 320 in the left-right direction, which is conducive to improving the stability of the air guide 320 in guiding the air.

[0160] In some embodiments, as shown in FIG22 , in the air supply direction, an air guide area with increasing spacing is formed between two adjacent air guide members 320 in the first volute 301 and / or the second volute 302 , thereby expanding the air outlet area.

[0161] In some embodiments, as shown in Figure 22, at least a portion of the air guide 320 is configured as a bent plate 350. The bent plates 350 of two adjacent air guides 320 in the first volute 301 and / or the second volute 302 are arranged opposite each other in the left-right direction and are bent away from each other. For example, the bent plates 350 are bent into an arc. This can reduce disturbances in the airflow passing through the air guide 320, facilitating uniform air supply.

[0162] In some embodiments, as shown in FIG. 22 , in the air supply direction, the height of the air guide 320 first increases and then decreases, or the height of the air guide 320 increases and then remains constant.

[0163] For example, the air duct member 41 includes two air guides 320 disposed within the first volute 301. The heights of the two air guides 320 first increase and then decrease, i.e., the air guides 320 are trapezoidal in shape. This allows airflow to flow downward and then upward through the air guides 320 in the air supply direction, thereby expanding the vertical air outlet area of ​​the fan assembly.

[0164] For example, the air duct member 41 includes two air guides 320, which are disposed in the second volute 302. The heights of the two air guides 320 are first increased and then maintained constant. In this way, the air guides 320 can guide air upward, thereby increasing the air supply height of the second air outlet 310 and expanding the air guide area.

[0165] In some embodiments, as shown in Figures 21 and 23, the first volute 301 includes a first plane 330. At least a portion of the upper surface of the first volute 301 is configured as the first plane 330. The second volute 302 includes a second plane 340. At least a portion of the lower surface of the second volute 302 is configured as a second plane 340 that is parallel to the first plane 330, and the second plane 340 extends to the second air outlet 310. For example, the first plane 330 and the second plane 340 are parallel to the horizontal plane, thereby reducing the thickness of the first volute 301 and the second volute 302, thereby reducing the overall thickness of the air conditioner indoor unit 100.

[0166] In some embodiments, as shown in FIG. 24 , the first volute 301 includes a top plate 360 ​​and two upper side plates 3621 . The two upper side plates 3621 are respectively connected to two ends of the top plate 360 ​​corresponding to the second air inlet 230 .

[0167] In some embodiments, as shown in FIG. 24 , the first volute 301 further includes a volute tongue 3611 , which is connected to an end of the top plate 360 ​​close to the second air outlet 310 .

[0168] In some embodiments, as shown in FIG25 , the second volute 302 includes a bottom plate 364 and two lower side plates 363 . The two lower side plates 363 are respectively connected to the ends of the bottom plate 364 corresponding to the two second air inlets 230 . The lower side plates 363 extend along the air supply direction to the second air outlet 310 . The two upper side plates 3621 are fixedly connected to the two lower side plates 363 .

[0169] As shown in FIG. 22 , the volute tongue 3611 is fixedly connected to the two lower side plates 363 , and the volute tongue 3611 , the bottom plate 364 and the two lower side plates 363 together define the second air outlet 310 .

[0170] In some embodiments, as shown in Figures 23 and 25, the edges of the first volute 301 and the second volute 302 close to each other are constructed as matching curved surfaces. In this way, the first volute 301 and the second volute 302 can improve the reliability of the connection between the first volute 301 and the second volute 302 through the matching of the curved surfaces.

[0171] In some embodiments, the air supply volume can be changed by changing the shape and size of the volute tongue 3611, the bottom plate 364 and the lower side plate 363. Thus, the air supply volume can be increased by expanding the size of the second air outlet 310.

[0172] In some embodiments, as shown in FIG. 22 , in the air supply direction (ie, direction S), the distance between the two lower side plates 363 increases, thereby facilitating an increase in the air output volume and air output area of ​​the fan assembly.

[0173] In some embodiments, as shown in FIG. 21 and FIG. 24 , the first volute 301 further includes a first clamping portion 370 . The first clamping portion 370 is disposed on the top plate 360 ​​and is located at an end of the top plate 360 ​​away from the second air outlet.

[0174] In some embodiments, as shown in Figures 21 and 25, the second volute 302 further includes a second clamping portion 380. The second clamping portion 380 is disposed at an end of the bottom plate 364 away from the second air outlet and corresponds to the position of the first clamping portion 370. The first clamping portion 370 and the second clamping portion 380 are engaged with each other.

[0175] For example, the first clamping portion 370 is a clamping slot, and the first clamping portion 370 is a buckle. The clamping slot and the buckle are clamped together to facilitate the disassembly and connection between the first volute 301 and the second volute 302, thereby improving the assembly efficiency of the volute.

[0176] In some embodiments, the first volute 301 includes a plurality of first engaging portions 370, which are spaced apart along the axial direction of the first volute 301. The second volute 302 includes a plurality of second engaging portions 380, which are correspondingly spaced apart along the axial direction of the second volute 302. The plurality of first engaging portions 370 and the plurality of second engaging portions 380 are correspondingly engaged with each other, thereby improving the reliability of the engagement between the first volute 301 and the second volute 302.

[0177] In some embodiments, as shown in Figures 26 and 27 , the air conditioner indoor unit 100 further includes a water receiving pan 600. The water receiving pan 600 is disposed in the air outlet housing 30 and below the heat exchanger 50. The water receiving pan 600 is configured to receive condensed water generated by the heat exchanger 50, thereby preventing the condensed water from flowing out through gaps in the housing.

[0178] The water tray 600 includes a water tray body 601 and a first rib 603. The first rib 603 is disposed on the water tray body 601 and extends along its length (i.e., the left-right direction as shown in FIG27 ). The heat exchanger 50 abuts the water tray body 601, and the first rib 603 is located on the side of the heat exchanger 50 that is closest to the fan assembly. As a result, airflow from the fan assembly is blocked by the first rib 603, changing its direction (e.g., flowing upward and toward the heat exchanger). This prevents condensed water from being affected by the airflow and splashing outside the water tray 600, potentially causing a short circuit within the air conditioner's indoor unit.

[0179] In some embodiments, as shown in Figures 28 and 29 , the water receiving tray 600 further includes a first flow blocking portion 610. The first flow blocking portion 610 is disposed on the water receiving tray body 601 and extends along the length of the water receiving tray body 601. The first flow blocking portion 610 is located on a side of the first retaining rib 603 that is adjacent to the first air outlet 31 and is spaced apart from the first retaining rib 603. The side surface of the first flow blocking portion 610 that faces the heat exchanger 50 is substantially parallel to the side surface of the heat exchanger 50 that faces the first flow blocking portion 610.

[0180] In this way, the distance between each part of the bottom of the heat exchanger 50 and the first baffle 610 is equal, thereby avoiding the side blowing on the first baffle 610 and causing uneven condensate discharge, thereby improving the efficiency of condensate discharge.

[0181] In some embodiments, a distance D is defined between a surface of the first flow blocking portion 610 facing the heat exchanger 50 and a surface of the heat exchanger 50 facing the first flow blocking portion 610, and the distance D is any value between 8 mm and 20 mm (i.e., 8 mm ≤ d ≤ 20 mm). For example, the distance D is any value between 8 mm and 12 mm, any value between 12 mm and 16 mm, or any value between 16 mm and 20 mm.

[0182] As configured above, the distance between the first baffle 610 and the heat exchanger 50 is smaller, so that the wind speed changes within a shorter path. Thus, while ensuring that there is a gap between the first baffle 610 and the heat exchanger 50 sufficient to accommodate the condensed water, a high-pressure zone can be formed to discharge the condensed water upward, thereby effectively preventing the condensed water from splashing to the outside of the water receiving tray 600.

[0183] In some embodiments, as shown in Figures 28 and 29, the water tray 600 further includes two second retaining ribs 612. The second retaining ribs 612 are disposed on the water tray body 601 and extend along the width (i.e., the front-to-back direction) of the water tray body 601. The two second retaining ribs 612 are located on either side of the first retaining rib 603 along the length of the water tray body and are spaced apart from the first retaining rib 603 to form a drainage channel 604. In some embodiments, the water tray 600 may include multiple second retaining ribs 612. For example, the water tray 600 may include three, four, or more second retaining ribs 612.

[0184] In some embodiments, as shown in Figure 29, the water tray 600 further includes a drain port 650, which is disposed on one side of the water tray body. One end of the drain port 650 communicates with the drainage channel, and the other end of the drain port 650 communicates with the outside of the air conditioner indoor unit.

[0185] Thus, when condensed water on the heat exchanger 50 directly falls into the area surrounded by the second barrier rib 612 and the first barrier rib 603, the condensed water can flow into the high-pressure area along the drainage channel 604 and be discharged at the drainage port 650. In addition, the second barrier rib 612 and the first barrier rib 603 can also form a certain barrier effect on the splashing condensed water.

[0186] In some embodiments, as shown in FIG27 , the air conditioner indoor unit 100 further includes two second support plates 910 . The two second support plates 910 are respectively disposed at the left and right ends of the heat exchanger 50 and are fixedly connected to the heat exchanger 50. The second support plates 910 are fixed to the water tray body 601 . For example, the second support plates 910 are connected to the left and right end plates of the heat exchanger 50 .

[0187] The second retaining rib 612 includes a guide surface 640. The guide surface 640 is a surface of the second retaining rib 612 facing the second support plate 910. The guide surface 640 is configured to guide the second support plate 910. For example, the two second support plates 910 are located on opposite sides of the two second retaining ribs 612 and abut against the two guide surfaces 640 of the two second retaining ribs 612, thereby improving the installation efficiency of the second support plates 910.

[0188] It can be understood that the second support plate 910 is fixed on the water receiving tray body 601, and the left and right ends of the heat exchanger 50 are fixedly connected to the second support plate 910, so that the water receiving tray body 601, the second support plate 910 and the heat exchanger 50 form a whole, which is beneficial to improve the structural strength of the heat exchanger 50 and the stability of operation.

[0189] In some embodiments, as shown in FIG27 , the water tray 600 further includes a plurality of positioning ribs 613 disposed on the left and right ends of the water tray body 601. The positioning ribs 613 are spaced apart from the second retaining ribs 612 in the left-right direction and cooperate with the second support plate 910. For example, the positioning ribs 613 and the second retaining ribs 612 together limit the position of the second support plate 910.

[0190] It can be understood that the provision of the positioning ribs 613 can improve the structural strength of the water receiving tray body 601, and the positioning ribs 613 and the second support plate 910 jointly form a limit for the second support plate 910, which can limit the displacement of the second support plate 910 in the left and right directions, and can also play a positioning role in the installation of the second support plate 910, thereby helping to improve the installation efficiency of the heat exchanger and the second support plate.

[0191] In some embodiments, the positioning ribs 613 are configured in a sheet shape, and a plurality of positioning ribs 613 are spaced apart in the front-to-back direction, thereby further improving the structural strength and bending-torsional rigidity of the water tray body 601 .

[0192] In some embodiments, as shown in FIG27 , the water tray 600 further includes a thermal insulation member 620, within which the water tray body 601 is disposed. The thermal insulation member 620 is configured to insulate the water tray body 601. For example, the thermal insulation member 620 surrounds the bottom of the water tray body 601 and fits snugly against the bottom of the water tray body 601. The thermal insulation member 620 is made of a foam material that is lightweight, heat-insulating, waterproof, shockproof, soundproof, and corrosion-resistant.

[0193] In some embodiments, as shown in Figure 27, the side surface of the insulation component 620 close to the water receiving tray body 601 is recessed in the direction away from the water receiving tray body 601 to form a receiving groove 621, the inner contour of the receiving groove 621 is matched with the water receiving tray body 601, and the water receiving tray body 601 is set in the receiving groove 621.

[0194] In some embodiments, as shown in FIG27 , the water tray 600 includes a plurality of second reinforcing ribs 602 disposed at the bottom of the water tray body 601 and located within the receiving groove 621. The plurality of second reinforcing ribs 602 can enhance the structural strength of the water tray body 601, thereby enhancing the structural reliability of the water tray 600.

[0195] In some embodiments, as shown in FIG29 , the water tray body 601 includes a guide surface 611. The guide surface 611 is a portion of the surface of the water tray body 601 on a side adjacent to the heat exchanger 50. The guide surface 611 is located on the side of the first retaining rib 603 adjacent to the first air outlet and between the two second retaining ribs 612. The guide surface 611 is tilted, with the end adjacent to the first air outlet higher than the end facing away from the first air outlet.

[0196] In this way, the condensed water dripping from the heat exchanger 50 can flow along the guide surface 611 to the drainage channel, and then flow out to the outside of the casing through the drainage port 650, thereby improving the drainage efficiency on the water receiving tray 600.

[0197] In some embodiments, as shown in Figures 30 and 31 , the air outlet housing 30 further includes two extension plates 900. One of the two extension plates 900 is connected to the second bottom plate 361 and one of the second side plates 37, respectively, while the other of the two extension plates 900 is connected to the second bottom plate 361 and the other second side plate 37. The two extension plates 900 respectively define the left and right edges of the first air outlet 31. The extension plates 900 are fixedly connected to the second support plate 910, thereby improving the connection strength between the second support plate 910 and the air outlet housing 30.

[0198] In some embodiments, the extension plate 900 extends in the left-right direction and is integral with the second side plate 37. Thus, by connecting the second support plate 910 to the extension plate 900, not only can the second support plate 910 and the housing 10 be connected and fixed, but the heat exchanger 50 and the housing 10 can also be easily fixed.

[0199] In some embodiments, as shown in Figures 27 and 30, the heat exchanger 50 is tilted in the air outlet housing 30. For example, the end of the heat exchanger 50 close to the first air outlet 31 is higher than the end of the original first air outlet 31 of the heat exchanger 50. The second support plate 910 is constructed as a right triangle. The two second support plates 910 are arranged below the heat exchanger 50 and are respectively located near the left and right ends of the heat exchanger 50. The top surface of the second support plate 910 (i.e., the surface where the hypotenuse of the right triangle is located) is fixedly connected to the bottom surface of the heat exchanger 50.

[0200] In this way, the width of the heat exchanger 50 is greater than the up-down dimensions of the casing 10, thereby expanding the surface area of ​​the heat exchanger 50 on one side close to the first air inlet, thereby increasing the heat exchange area of ​​the heat exchanger 50 and improving the heat exchange efficiency of the heat exchanger 50 for indoor air.

[0201] Furthermore, by setting the second support plate 910 as a right triangle, the support stability of the second support plate 910 is improved. The second support plate 910 can more stably support and fix the heat exchanger 50 from below the heat exchanger 50, thereby improving the reliability of the connection between the heat exchanger 50 and the casing 10.

[0202] In some embodiments, as shown in FIG32 , the second support plate 910 includes a support plate body 911 and a third flange 920 . The third flange 920 is connected to the top end of the support plate body 911 and is fixedly connected to the heat exchanger 50 . The third flange 920 is bent away from the corresponding second side plate 37 . Thus, along the length of the heat exchanger 50 , the third flange 920 can extend toward the middle of the heat exchanger 50 , without extending beyond the heat exchanger 50 . This prevents interference between the third flange 920 and other components, facilitating the arrangement of the components within the air outlet housing 30 .

[0203] In some embodiments, as shown in FIG32 , the second support plate 910 further includes a fourth flange 930. The fourth flange 930 is connected to the end of the support plate body 911 away from the first air outlet and is fixedly connected to the extension plate 900. The fourth flange 930 is bent toward the corresponding second side plate 37.

[0204] In some embodiments, as shown in FIG32 , the second support plate 910 further includes a fifth flange 940 . The fifth flange 940 is connected to the bottom end of the support plate body 911 and is fixedly connected to the second bottom plate 361 . The fifth flange 940 is bent toward the corresponding second side plate 37 .

[0205] It is understandable that the fourth flange 930 and the fifth flange 940 are bent toward the corresponding second side plate 37 , which can balance the force on the second support plate 910 in the left and right directions of the housing 10 , thereby improving the structural stability of the second support plate 910 .

[0206] In some embodiments, the fifth flange 940 is supported and fixed on the water receiving tray 600 .

[0207] In some embodiments, the third flange 920 , the fourth flange 930 , and the fifth flange 940 may be bent in the same direction, thereby simplifying the structure of the second support plate 910 .

[0208] In some embodiments, the second support plate 910 further includes a third reinforcing rib 950 . The third reinforcing rib 950 is disposed on at least one of the third flange 920 , the fourth flange 930 , and the fifth flange 940 .

[0209] For example, the second support plate 910 includes a plurality of third reinforcing ribs 950. A first portion of the plurality of third reinforcing ribs 950 is disposed on the third flange 920 and is located between the third flange 920 and the support plate body 911. A second portion of the plurality of third reinforcing ribs 950 is disposed on the fourth flange 930 and is located between the fourth flange 930 and the support plate body 911. A third portion of the plurality of third reinforcing ribs 950 is disposed on the fifth flange 940 and is located between the fifth flange 940 and the support plate body 911.

[0210] This is beneficial to improving the structural strength of the third flange 920, the fourth flange 930 and the fifth flange 940, thereby improving the overall structural strength of the second support plate 910, and can improve the stability of the connection between the second support plate 910 and the heat exchanger 50, and the second support plate 910 and the casing 10.

[0211] In some embodiments, as shown in FIG32 , the second support plate 910 further includes a guide portion 960. The guide portion 960 is disposed on the support plate body 911 and protrudes from at least one side of the support plate body along the thickness direction of the support plate body 911. The guide portion 960 is configured to guide condensed water flowing onto the surface of the second support plate 910 into the water receiving tray 600.

[0212] It is understood that the second support plate 910 is positioned near the edge of the water receiving tray 600, which is prone to water leakage. Therefore, by providing the guide portion 960 on the second support plate 910, the condensed water on the surface of the second support plate 910 can be gently flowed into the water receiving tray 600, thereby preventing the condensed water from flowing out of the water receiving tray 600.

[0213] In some embodiments, the guide portion 960 is constructed as a rib and is arranged obliquely to the water receiving tray 600, so that the condensed water can flow along the extension direction of the rib.

[0214] In some embodiments, the guide portion 960 protrudes from one side of the second support plate 910 toward the corresponding second side plate 37, so that the third flange 920 and the guide portion 960 are respectively located on opposite sides of the support plate body 911, thereby avoiding the third flange 920 blocking the condensation water from flowing toward the side of the second support plate 910 facing the second side plate 37, thereby improving the drainage effect of the water receiving tray.

[0215] In some embodiments, the second support plate 910 includes a plurality of guide portions 960 , the plurality of guide portions 960 are spaced apart, and the distance between two adjacent guide portions 960 increases in a direction from top to bottom.

[0216] In this way, multiple guides 960 can simultaneously guide the condensed water, thereby improving the condensed water guiding effect of the guides 960. Moreover, the multiple guides 960 are not parallel to each other, so that the condensed water guided by different guides 960 will not interfere with each other, thereby preventing the condensed water from gathering on the second support plate 910.

[0217] In some embodiments, as shown in Figures 31 and 33 , the air conditioner indoor unit 100 further includes a second fixing member 970. The second fixing member 970 is in the shape of an elongated strip. One end of the second fixing member 970 is connected to a surface of the heat exchanger 50 that faces away from the second support plate 910, and the other end of the second fixing member 970 is connected to a side wall of the air outlet housing 30 that faces away from the air inlet housing 20.

[0218] In this way, the lower side of the heat exchanger 50 is fixedly connected to the second support plate 910, and the end of the upper side of the heat exchanger 50 close to the first air outlet is connected to the air outlet shell 30 through the second fixing member 970. That is to say, the second support plate 910 and the second fixing member 970 fix the heat exchanger 50 at the same time, thereby improving the connection strength between the heat exchanger 50 and the casing 10, which is beneficial to improving the stability and reliability of the heat exchanger 50.

[0219] In some embodiments, as shown in Figures 31 and 33, the second fixing member 970 includes a sixth flange 980 and a seventh flange 990. One end of the second fixing member 970 is bent to form the sixth flange 980, and the other end of the second fixing member 970 is bent to form the seventh flange 990. In the vertical direction, the sixth flange 980 connects to the middle portion of the heat exchanger 50, and the seventh flange 990 connects to at least one of a side wall of the air outlet housing away from the air inlet housing or a top wall of the air outlet housing.

[0220] It can be understood that by providing the sixth flange 980 and the seventh flange 990, the contact area between the second fixing member 970 and the air outlet shell can be increased, as well as the contact area between the second fixing member 970 and the heat exchanger 50 can be increased, thereby helping to improve the reliability of the connection between the second fixing member 970 and the air outlet shell, and between the second fixing member 970 and the heat exchanger 50.

[0221] In some embodiments, as shown in Figures 26 and 34, the air conditioning indoor unit 100 also includes a controller 700, which is arranged on one side of the air outlet housing 30 (such as one side in the left and right directions) to facilitate the installation and maintenance of the controller 700.

[0222] In some embodiments, as shown in Figure 34, the controller 700 includes a box body 701, and the box body 701 is disposed on one side of the air outlet housing 30. For example, the box body 701 is disposed on one side of the air outlet housing 30 in the left-right direction.

[0223] In some embodiments, as shown in FIG34 , the controller 700 includes a box cover 702 . The box cover 702 is disposed on the box body 701 .

[0224] In some embodiments, as shown in FIG34 , the controller 700 includes an electrical control board 760 disposed within the housing 701 and within the accommodation space enclosed by the housing 701 and the cover 702. The electrical control board 760 is electrically connected to the fan assembly 40 and is configured to control the fan assembly 40 via electrical signals.

[0225] For example, the electric control board 760 includes electronic components 761 and wiring terminals 762 , and the wiring terminals 762 are spaced apart from the electronic components 761 .

[0226] In some embodiments, as shown in FIG34 , the box cover 702 includes a first sub-cover 703 and a second sub-cover 720, the electronic component 761 is located between the first sub-cover 703 and the box body 701, and the terminal 762 is located between the second sub-cover 720 and the box body 701. The second sub-cover 720 is detachably connected to the first sub-cover 703.

[0227] It can be understood that the second sub-box cover 720 is detachably connected to the first sub-box cover 703, and the controller 700 can be split into two parts: one for protecting the electronic components 761 and the other for connecting to the main power supply. This can prevent the electronic components 761 from being corroded by water due to direct exposure to the air, which is beneficial to improving the stability and reliability of the controller 700.

[0228] In some embodiments, as shown in FIG. 34 , the connection terminal 762 is located below the electronic component 761 , and the second sub-cover 720 is located below the first sub-cover 703 .

[0229] It's understood that terminal 762 is primarily used for connecting to the power supply, while electronic component 761 serves as the structural support for program execution. Second sub-cover 720 includes holes for connecting to the inside and outside of controller 700. Therefore, positioning terminal 762 below electronic component 761 prevents leak detection liquid from flowing from second sub-cover 720 above to electronic component 761 below, effectively reducing the risk of electronic component 761 failing due to contact with the leak detection liquid.

[0230] In some embodiments, as shown in FIG35 , the second sub-cover 720 includes a wire hole 730 disposed in and extending through the bottom wall of the second sub-cover 720. The wire hole 730 is configured to allow circuit lines to pass through, thereby allowing the circuit lines to connect to the wiring terminals 762 within the second sub-cover 720. It will be appreciated that the provision of the wire hole 730 in the bottom wall of the second sub-cover 720 can save space for wiring arrangements and shorten wiring paths.

[0231] In some embodiments, as shown in FIG35 , the first sub-cover 703 includes a first hanging portion 710, and the second sub-cover 720 includes a second hanging portion 740 corresponding to the first hanging portion 710. The first hanging portion 710 is hung on the second hanging portion 740, so that the second sub-cover 720 is hung on the first sub-cover 703. In this way, the second sub-cover 720 can be pre-assembled with the first sub-cover 703 by hanging, thereby improving the efficiency of assembling and disassembling the second sub-cover 720 and the first sub-cover 703.

[0232] For example, the first hanging portion 710 is configured as a hook and is integrally formed with the first sub-box cover 703. The hook is bent upward, and the second hanging portion 740 is configured as a hanging opening, on which the hook is hung.

[0233] In some embodiments, as shown in FIG35 , the first sub-cover 703 includes a plurality of first hanging portions 710, which are spaced apart. The second sub-cover 720 includes a plurality of second hanging portions 740 corresponding to the plurality of first hanging portions 710, which are spaced apart. The plurality of first hanging portions 710 are respectively hung on the plurality of second hanging portions 740, thereby improving the connection strength between the first sub-cover 703 and the second sub-cover 720, and further improving the connection reliability between the first sub-cover 703 and the second sub-cover 720.

[0234] In some embodiments, the first sub-cover 703 is detachably connected to the housing 10 via a plurality of fasteners, and the second sub-cover 720 is detachably connected to the housing 10 via a plurality of fasteners. For example, the fasteners may be bolts or the like.

[0235] In some embodiments, as shown in Figure 35, the second sub-cover 720 further includes an assembly protrusion 750. The assembly protrusion 750 is provided on a side wall of the second sub-cover 720. The assembly protrusion 750 is located at an end corner of the side wall that is close to the first sub-cover 703 and close to the box body 701, and protrudes in a direction away from the second sub-cover 720. A gap is provided between the assembly protrusion 750 and the corresponding end corner of the first sub-cover 703 to facilitate assembly of the first sub-cover 703 and the second sub-cover 720.

[0236] In some embodiments, as shown in FIG35 , along the height direction of the housing (i.e., the vertical direction), the size of the first sub-cover 703 is larger than the size of the second sub-cover 720. Along the length direction of the housing (i.e., the front-to-back direction), the size of the first sub-cover 703 is approximately equal to the size of the second sub-cover 720. It will be appreciated that the area occupied by the electronic components 761 on the housing 701 is larger than the area occupied by the terminals 762 on the housing 701. Therefore, by setting the size of the first sub-cover 703 to be larger than the size of the second sub-cover 720, the first sub-cover 703 can protect the electronic components 761.

[0237] In some embodiments, as shown in Figures 36, 37 and 38, the second side panel 37 includes a third hanging portion 1000, and the box body 701 includes a fourth hanging portion 1004. The fourth hanging portion 1004 is hung in cooperation with the third hanging portion 1000 so that the box body 701 is fixedly connected to the second side panel 37 by fasteners.

[0238] In this way, the controller 700 can be fixedly connected to one side of the housing 10 , thereby shortening the distance between the controller 700 and the fan assembly 40 , and facilitating electrical connection between the electric control board 760 and the fan assembly 40 .

[0239] In some embodiments, the third hanging portion 1000 is configured as a hanging hole and is open upward, and the fourth hanging portion 1004 is configured as a hook and extends downward, and the hook is hung in conjunction with the hanging hole.

[0240] Thus, the hook can be hooked on the side wall of the hanging hole from top to bottom, that is, the controller 700 can be hung on the second side plate 37 after the hook and the hanging hole are matched, so that the connection between the controller 700 and the second side plate 37 can be pre-positioned to facilitate fixing the controller 700 and the second side plate 37 by fasteners.

[0241] In some embodiments, as shown in Figures 37 and 38 , the third hanging portion 1000 is disposed at the top edge of the second side panel 37, and the fourth hanging portion 1004 is disposed at the top edge of the housing 701. This simplifies the structure of the second side panel 37 and the housing 701, facilitating their processing. Furthermore, the lower side of the controller 700 is prevented from extending downwardly from the housing 10, resulting in a more streamlined appearance for the air conditioner indoor unit 100.

[0242] In some embodiments, as shown in Figures 37 and 38, the second side panel 37 includes at least two third hanging portions 1000, the box body 701 includes at least two fourth hanging portions 1004, and the at least two third hanging portions 1000 are correspondingly connected to the at least two fourth hanging portions 1004.

[0243] For example, at least two third hanging portions 1000 are spaced apart along the top edge of the second side panel 37, and at least two fourth hanging portions 1004 can be spaced apart along the top edge of the box body 701. This is conducive to improving the stability of the pre-positioning of the controller 700 and the second side panel 37.

[0244] In some embodiments, as shown in FIG38 , the box body 701 includes a box body 7011 and two eighth flanges 1005. The two eighth flanges 1005 are disposed on either side of the box body 7011 and extend away from each other. The eighth flanges 1005 are fixedly connected to the second side panel 37 via fasteners.

[0245] For example, referring to Figure 38 , the box body 701 further includes a plurality of first bolt holes 1007. A portion of the plurality of first bolt holes 1007 are spaced apart and disposed on one eighth flange 1005, while another portion of the plurality of first bolt holes 1007 are spaced apart and disposed on another eighth flange 1005. Referring to Figure 39 , the second side panel 37 includes a plurality of second bolt holes 1002. The plurality of first bolt holes 1007 correspond to the plurality of second bolt holes 1002 and are fixedly connected to the plurality of second bolt holes 1002 via fasteners.

[0246] In this way, by setting the eighth flange 1005, it is not only convenient to construct multiple second bolt holes 1002 and facilitate processing, but also the contact area between the box body 701 and the second side plate 37 can be increased, thereby improving the stability of the connection between the controller 700 and the second side plate 37.

[0247] In some embodiments, as shown in Figures 38 and 40, the box body 701 includes a first wire hole 1006, and the second side panel 37 includes a second wire hole 1001 corresponding to the first wire hole 1006. The wire harness passes through the first wire hole 1006 and the second wire hole 1001 to connect the electric control board 760 and the fan assembly 40.

[0248] For example, the box body 701 includes multiple first wire holes 1006, and the second side panel 37 includes multiple second wire holes 1001. The multiple first wire holes 1006 correspond to the multiple second wire holes 1001, which facilitates the wiring of the wiring harness between the electrical control board 760 and the fan assembly 40.

[0249] In some embodiments, the first wire hole 1006 is set near the upper part of the box body, and the second wire hole 1001 is set near the upper part of the second side panel 37, which is beneficial to prevent condensation water from splashing onto the wiring harness and improve the stability and reliability of the controller 700.

[0250] In some embodiments, as shown in FIG. 39 , the second side plate 37 includes a through hole 1003 .

[0251] In some embodiments, as shown in Figures 38 and 39 , the controller 700 further includes a radiator 1008. The radiator 1008 is disposed on the side of the housing 701 facing the heat exchanger 50. The radiator 1008 is thermally connected to the electronic control board 760 and is configured to dissipate heat generated during operation of the electronic control board 760 to the exterior of the controller 700. The second side panel 37 includes a through hole 1003. A portion of the radiator 1008 extends through the through hole 1003 into the housing 10 to exchange heat with the air surrounding the heat exchanger 50. This improves the heat dissipation efficiency of the radiator 1008 and prevents the temperature of the electronic control board 760 from being excessively high.

[0252] In some embodiments, as shown in FIG38 , the heat sink 1008 includes a base plate 10081 and heat sinks 10082. The heat sinks 10082 are disposed on a side of the base plate 10081 facing the heat exchanger 50. The base plate 10081 is embedded in the side of the housing 701 facing the heat exchanger 50. The heat sinks 10082 extend through the through holes 1003 into the housing 10.

[0253] For example, the radiator 1008 includes multiple heat sinks 10082, which can be arranged along the left and right sides of the casing 10, and the multiple heat sinks 10082 are spaced apart along the thickness direction thereof. In this way, the heat dissipation area of ​​the radiator 1008 can be increased and the heat dissipation efficiency of the radiator 1008 can be improved.

[0254] In some embodiments, as shown in FIG40 , the controller 700 further includes a reactor 1009, which is disposed within the housing 701 and above the electric control board 760. The reactor 1009 is configured to prevent significant fluctuations in the current flowing through the electric control board 760, thereby improving the stability of the circuit in the electric control board 760 and enhancing the reliability of the controller 700.

[0255] Those skilled in the art will understand that the scope of the present invention is not limited to the above specific embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present application. The scope of the present application is limited by the appended claims.

Claims

1. An air conditioner indoor unit, comprising: Chassis, including: air inlet casing; and An air outlet shell connected to the air inlet shell; a side of the air outlet shell away from the air inlet shell is open to form a first air outlet; a side of the air inlet shell away from the air outlet shell is open to form a first air inlet; a fan assembly, disposed in the air inlet housing and close to the first air inlet; and A heat exchanger is arranged in the air outlet housing and close to the first air outlet; along the arrangement direction of the air inlet housing and the air outlet housing, the heat exchanger and the fan assembly are arranged separately; wherein the fan assembly is configured to suck air outside the casing into the casing through the first air outlet, and blow the sucked air to the heat exchanger, so that the air exchanges heat with the heat exchanger and is then discharged to the outside of the casing through the first air outlet; Among them, the air inlet shell includes at least one first mounting part, and the air outlet shell includes at least one second mounting part; the at least one second mounting part corresponds to the at least one first mounting part respectively, and is fixedly connected to the at least one first mounting part respectively, so that the air inlet shell is fixedly connected to the air outlet shell.

2. The air conditioning indoor unit according to claim 1, wherein: The air inlet housing further comprises two first flanges; the two first flanges are respectively arranged on opposite side walls of the air inlet housing at one end close to the air outlet housing; the two first flanges extend in directions away from each other; The at least one first mounting portion includes a plurality of first mounting portions; a portion of the plurality of first mounting portions is disposed on one of the two first flanges, and another portion of the plurality of first mounting portions is disposed on the other of the two first flanges.

3. The air conditioning indoor unit according to claim 2, wherein: A portion of the plurality of first mounting portions is arranged on one of the two first flanges at intervals along the height direction of the casing; another portion of the plurality of first mounting portions is arranged on the other of the two first flanges at intervals along the height direction of the casing.

4. The air conditioning indoor unit according to any one of claims 1 to 3, wherein: The fan assembly comprises: an air duct member, located on a side of the heat exchanger close to the first air inlet; a motor, arranged to be spaced apart from the air duct member along the width direction of the housing; A fan is arranged in the air duct member and is drivingly connected to the motor; wherein the motor is configured to drive the fan to rotate; a motor bracket, the motor being arranged on the motor bracket and fixedly connected to the motor bracket; and A mounting plate, the air duct member and the motor bracket are arranged on the mounting plate; the mounting plate is arranged on a side wall of the air outlet shell close to the air inlet shell, and is connected to the air outlet shell.

5. The air conditioning indoor unit according to claim 4, wherein: The mounting plate includes a plurality of third mounting portions, and the air outlet housing includes a plurality of fourth mounting portions; the plurality of third mounting portions correspond to the plurality of fourth mounting portions and are fixedly connected to the plurality of fourth mounting portions.

6. The air conditioning indoor unit according to claim 4 or 5, wherein: The mounting plate comprises a hook, and the air outlet housing comprises a hanging hole. The hook is arranged in the hanging hole to guide the assembly of the mounting plate and the air outlet housing.

7. The air conditioning indoor unit according to any one of claims 4 to 6, wherein: The air duct member also includes: First volute; a second volute, wherein the first volute is connected to the second volute and is disposed above the second volute; the first volute and the second volute together define a second air inlet and a second air outlet; the fan is configured to suck air from the second air inlet and deliver air from the second air outlet; and At least one air guide is disposed on at least one of the first volute and the second volute and is disposed close to the second air outlet; the air guide is configured to guide air at the second air outlet.

8. The air conditioning indoor unit according to claim 7, wherein: The at least one air guide member includes at least two air guide members, and the at least two air guide members are arranged on at least one of the first volute and the second volute at intervals along a width direction of the casing.

9. The air conditioning indoor unit according to any one of claims 1 to 8, wherein: The air inlet housing also includes: The first base comprises: a first bottom plate; and Two first side panels; along the width direction of the housing, the two first side panels are respectively connected to opposite ends of the first bottom panel; a first back plate, which is disposed on a side of the first bottom plate and the first side plate away from the air outlet housing and is detachably connected to the first bottom plate and the first side plate; the first air inlet is disposed in the first back plate and penetrates the first back plate along a thickness direction of the first back plate; and The first top plate is arranged on the top of the first side plate and is detachably connected to the first top plate.

10. The air conditioning indoor unit according to claim 9, wherein: The air outlet housing comprises: The second base comprises: a second bottom plate; and A second back plate, the second back plate is connected to an end of the second bottom plate close to the air inlet housing; the second mounting portion is arranged on the second back plate; two second side panels, the two second side panels are respectively arranged on both sides of the second bottom panel along the width direction of the housing and are detachably connected to the second bottom panel; the two second side panels are respectively arranged on both sides of the second back panel along the width direction of the housing and are detachably connected to the second back panel; and A second top plate is disposed on the top of the two second side plates and is detachably connected to the two second side plates.

11. The air conditioning indoor unit according to claim 10, wherein: The second base also includes a flange portion, which is connected to an end of the second bottom plate away from the second back plate; the flange portion extends along the width direction of the casing and bends upward; the upper edge of the flange portion constitutes the lower end of the first air outlet, and is configured to limit the air outlet direction of the first air outlet, and to prevent condensed water generated by the heat exchanger from flowing out of the casing through the first air outlet.

12. The air conditioning indoor unit according to claim 10 or 11, wherein: At least one of the first base and the second base is constructed as an integral piece made of a metal material.

13. The air conditioning indoor unit according to any one of claims 1 to 12, wherein: In the width direction of the housing, the size of the air inlet housing is smaller than the size of the air outlet housing.

14. The air conditioner indoor unit according to any one of claims 10 to 13, further comprising a controller, wherein the controller comprises: A box body is arranged on one side of the air outlet housing along the width direction of the housing; A box cover, arranged on the box body; as well as An electric control board is arranged in the box body and is located in the accommodation space enclosed by the box body and the box cover; the electric control board is electrically connected to the fan assembly; Wherein, the electric control board comprises electronic components and wiring terminals, and the wiring terminals are arranged separately from the electronic components.

15. The air conditioning indoor unit according to claim 14, wherein: The box cover comprises: a first sub-box cover, wherein the electronic components are located between the first sub-box cover and the box body; and The second sub-box cover, the wiring terminal is located between the second sub-box cover and the box body; the second sub-box cover is detachably connected to the first sub-box cover.

16. The air conditioning indoor unit according to claim 15, wherein: The box body includes a first wire passing hole, and the second side plate includes a second wire passing hole corresponding to the first wire passing hole; the wire harness passes through the first wire passing hole and the second wire passing hole to connect the electric control board and the fan assembly.

17. The air conditioner indoor unit according to any one of claims 1 to 16, further comprising a water receiving pan; the water receiving pan is arranged in the air outlet housing and is located below the heat exchanger; the water receiving pan is configured to receive condensed water generated by the heat exchanger to prevent the condensed water from flowing to the outside of the housing; the water receiving pan comprises: A water receiving pan body, wherein the heat exchanger is arranged on the water receiving pan body; and The first retaining rib is arranged on the water receiving tray body and extends along the length direction of the water receiving tray body; the first retaining rib is located on a side of the heat exchanger close to the fan assembly.

18. The air conditioning indoor unit according to claim 17, wherein: The water receiving pan also includes a first flow baffle; the first flow baffle is arranged on the water receiving pan body and extends along the length direction of the water receiving pan body; the first flow baffle is located on the side of the first baffle rib close to the first air outlet and is spaced apart from the first baffle rib; a side surface of the first flow baffle facing the heat exchanger is roughly parallel to a side surface of the heat exchanger facing the first flow baffle.

19. The air conditioning indoor unit according to claim 18, wherein: The water receiving tray also includes: two second retaining ribs, which are arranged on the water receiving tray body and extend along the width direction of the water receiving tray body; the two second retaining ribs are respectively located on both sides of the first retaining rib along the length direction of the water receiving tray body and are spaced apart from the first retaining rib to form a drainage channel; and A drain port is arranged on one side of the water receiving tray body; one end of the drain port is communicated with the drainage channel, and the other end of the drain port is communicated with the outside of the air conditioner indoor unit.

20. The air-conditioning indoor unit according to any one of claims 17 to 19, further comprising two second support plates; the two second support plates are respectively arranged at both ends of the heat exchanger and fixedly connected to the heat exchanger; the second support plates are fixed on the water receiving tray body.

Images