AU2024326037A1

AU2024326037A1 - Indoor air-conditioning unit

Info

Publication number: AU2024326037A1
Application number: AU2024326037A
Authority: AU
Inventors: Wenxiang Deng; Weidong HONG; Jianyi Huang; Peimang HUANG; Wenjie Li; Weiping Lin; Qinghai LV; Huachao SUN; Xiaofeng Wang; Chuanji WU; Shufan YU; Nan Zhang; Yusheng Zhang; Wei Zhao; Liangliang ZHOU
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2023-08-16
Filing date: 2024-02-20
Publication date: 2025-12-11
Also published as: WO2025035725A1

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

INDOOR AIR-CONDITIONING UNIT INDOOR AIR-CONDITIONING UNIT

[0001] The present application claims priority of a Chinese Patent Application No. 202311034629.3 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209323.9 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209422.7 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209671.6 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209389.8 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209308.4 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209338.5 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209407.2 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209289.5 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209442.4 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209358.2 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209721.0 filed on August 16, 2023; and the priority of a Chinese Patent Application No. 202322209758.3 filed on August 16, 2023, the entire contents of which are incorporated herein by reference.

TECHNICAL TECHNICAL FIELD FIELD

[0002] The present disclosure relates to the technical field of air treatment, and more particularly to an indoor air-conditioning unit.

BACKGROUND

[0003] With continuous advancements in technology and improvements in people’s living standards, air conditioners have become indispensable appliances in daily life. A duct-type 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.

[0004] The duct-type indoor air-conditioning unit is installed in a ceiling or wall, and cold or hot air is directly supplied to each room through air ducts. The duct-type indoor air-conditioning unit features an attractive appearance, a simple structure, and ease of maintenance, and therefore has been widely used.

SUMMARY SUMMARY

[0005] The present disclosure provides an indoor air-conditioning unit, which comprises 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. One side of the air outlet housing away from the air inlet housing is open to form a first air outlet. One side of the air inlet housing away from the air outlet housing is open to form a first air inlet. The fan assembly is disposed in the air inlet housing and located close to the first air inlet. The heat exchanger is disposed in the air outlet housing and located close to the first air outlet. In an arrangement direction of the air inlet housing and the air outlet housing, the heat exchanger is spaced apart from the fan assembly. The fan assembly is configured to draw air from outside the housing into the housing via the first air inlet, and to blow the air drawn in toward the heat exchanger, so that the air exchanges heat with the heat exchanger and is 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 respectively 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 housing is fixedly connected to the air outlet housing.

DESCRIPTION OF THE DRAWINGS

[0006] FIG. 1 is a perspective view of an indoor air-conditioning unit according to some embodiments.

[0007] FIG. 2 is a partial perspective view of the indoor air-conditioning unit according to some embodiments.

[0008] FIG. 3 is a perspective view of an air inlet device of the indoor air-conditioning unit according to some embodiments.

[0009] FIG. 4 is a perspective view of an air outlet device of the indoor air-conditioning unit according to some embodiments.

[0010] FIG. 5 is a perspective view of an air outlet device and a fan assembly of the indoor air-conditioning unit according to some embodiments.

[0011] FIG. 6 is a perspective view of a mounting plate and a motor fixing plate of the indoor air-conditioning unit according to some embodiments.

[0012] FIG. 7 is an exploded view of a mounting plate and a fan assembly of the indoor air- conditioning unit according to some embodiments.

[0013] FIG. 8 is a perspective view of a first fixing member of the indoor air-conditioning unit according to some embodiments.

[0014] FIG. 9 is a partial perspective view of a mounting plate of the indoor air-conditioning unit according to some embodiments.

[0015] FIG. 10 is a perspective view of a hook and a hanging hole of the indoor air- conditioning unit according to some embodiments.

[0016] FIG. 11 is a structural view of a second base of the indoor air-conditioning unit

2 according to some embodiments.

[0017] FIG. 12 is a structural view of a temperature sensor and a second back plate of the indoor air-conditioning unit according to some embodiments.

[0018] FIG. 13 is a perspective view of an air outlet housing of the indoor air-conditioning unit according to some embodiments.

[0019] FIG. 14 is a perspective view of a second base of the indoor air-conditioning unit according to some embodiments.

[0020] FIG. 15 is a structural view of a second back plate of the indoor air-conditioning unit in another view according to some embodiments.

[0021] FIG. 16 is a structural view of a first limiting rib of the indoor air-conditioning unit according to some embodiments.

[0022] FIG. 17 is a structural view of a second limiting rib of the indoor air-conditioning unit according to some embodiments.

[0023] FIG. 18 is a structural view of a first top plate of the indoor air-conditioning unit according to some embodiments.

[0024] FIG. 19 is a structural view of a first limiting groove of the indoor air-conditioning unit according to some embodiments.

[0025] FIG. 20 is a structural view of a housing of the indoor air-conditioning unit according to some embodiments.

[0026] FIG. 21 is a perspective view of an air duct member of the indoor air-conditioning unit according to some embodiments.

[0027] FIG. 22 is a perspective view of the air duct member of the indoor air-conditioning unit in another view according to some embodiments.

[0028] FIG. 23 is a perspective view of a first volute of the indoor air-conditioning unit according to some embodiments.

[0029] FIG. 24 is a perspective view of the first volute of the indoor air-conditioning unit in another view according to some embodiments.

[0030] FIG. 25 is a perspective view of a second volute of the indoor air-conditioning unit according to some embodiments.

[0031] FIG. 26 is a perspective view of a heat exchanger, the fan assembly, and a controller of the indoor air-conditioning unit according to some embodiments.

[0032] FIG. 27 is an exploded view of the heat exchanger and a drain pan of the indoor air- conditioning unit according to some embodiments.

[0033] FIG. 28 is a perspective view of the drain pan of the indoor air-conditioning unit according to some embodiments.

[0034] FIG. 29 is a partially enlarged view of a portion A in FIG. 28.

3

[0035] FIG. 30 is an exploded view of the indoor air-conditioning unit according to some embodiments. embodiments.

[0036] FIG. 31 is a partially enlarged view of a portion B in FIG. 30.

[0037] FIG. 32 is a perspective view of a second support plate of the indoor air-conditioning unit according to some embodiments.

[0038] FIG. 33 is a perspective view of a second fixing member of the indoor air-conditioning unit according to some embodiments.

[0039] FIG. 34 is an exploded view of the air outlet device and the controller of the indoor air-conditioning unit according to some embodiments.

[0040] FIG. 35 is an exploded view of a box cover of the indoor air-conditioning unit according to some embodiments.

[0041] FIG. 36 is a perspective view of the indoor air-conditioning unit after removal of a second top plate according to some embodiments.

[0042] FIG. 37 is a partially enlarged view of a portion C in FIG. 36.

[0043] FIG. 38 is a perspective view of the controller of the indoor air-conditioning unit according to some embodiments.

[0044] FIG. 39 is a perspective view of a second side plate of the indoor air-conditioning unit according to some embodiments.

[0045] FIG. 40 is an exploded view of the controller of the indoor air-conditioning unit according to some embodiments.

DETAILED DESCRIPTION OF EMBODIMENTS

[0046] The technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. It is apparent that the described embodiments are merely some embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those ordinarily skilled in the art fall within the scope of protection of the present disclosure.

[0047] Unless the context requires otherwise, throughout the description and claims, the term "comprise" and other forms thereof, such as the third-person singular form "comprises" and the present participle form "comprising" are construed in an open, inclusive meaning, that is, "comprising, but not limited to”. In the description, the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc. are intended to indicate that a particular feature, structure, material, or characteristic related to the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic illustration of the above terms does not

4 necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be included in any one or more embodiments or examples in any suitable manner.

[0048] Hereinafter, the terms "first" and "second" are for descriptive purposes only, and are not to be understood as indicating or implying relative importance or as implicitly indicating the number of technical features indicated. Thus, features limited by "first" and "second" may expressly or implicitly include one or more of the features. In the description of embodiments of the present disclosure, unless otherwise specified, "a plurality of" means two or more.

[0049] When describing some embodiments, the terms such as “connected” and their derivatives may be used. The term "connected" is to be understood in a broad sense; for example, "connected" may refer to a fixed connection, may also refer to a detachable connection, or an integral connection; and it may refer to a direct connection or an indirect connection through an intermediate medium.

[0050] “At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", encompassing the following combinations of A, B, and C: only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, as well as a combination of A, B, and C.

[0051] "A and/or B" includes three combinations of only A, only B, and a combination of A and B.

[0052] The use of "suitable for" or "configured to" herein means open and inclusive language that does not exclude devices suitable for or configured to perform additional tasks or steps.

[0053] As used herein, "about," "approximately," or "approximately" includes a stated value as well as an average within an acceptable range of deviation from a particular value, where the acceptable range of deviation is determined by one of ordinary skill in the art taking into account the measurement in question and the error associated with the measurement of a particular amount (i.e., limitations of the measurement system).

[0054] As used herein, terms such as "parallel," "perpendicular," and "equal" encompass both the stated conditions and conditions that are approximate to the stated ones, with the range of approximation falling within an acceptable deviation, where the acceptable range of deviation is as determined by a person of ordinary skill in the art taking into account the measurement in question and the error associated with the measurement of a particular quantity (i.e., limitations of the measurement system). For example, "parallel" encompasses both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for instance, within 5° of deviation; similarly, "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, with an acceptable deviation range for approximate perpendicularity that can also be, for example, within 5° of deviation. "Equal" encompasses both absolute equality and approximate equality, where the acceptable deviation

5 range for approximate equality can be, for example, a difference between the two quantities being compared that is less than or equal to 5% of either quantity.

[0055] A duct-type 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.

[0056] The indoor unit of the duct-type air conditioner is installed in a ceiling or a wall and delivers cold air or hot air directly to each room through an air duct, thereby not occupying the interior space of the room. Due to the concealed installation, the indoor unit of the duct-type air conditioner has the advantages of reduced impact on indoor aesthetics, simple structure, and convenient maintenance, and therefore has been widely used.

[0057] However, in general, the indoor unit of the duct-type air conditioner has an integrated structure with a large volume and mass, which makes transportation into a room and installation inconvenient. Therefore, indoor units of some duct-type air conditioners are configured as two- section structures, and the two sections of the indoor unit are fixedly connected through a plurality of bolts and bolt holes. Such a connection manner is complicated in operation. In addition, the two sections of the indoor unit can also be fixedly connected in a clamping engagement manner, but the connection is not firm enough and is prone to detachment.

[0058] Based on the foregoing, some embodiments of the present disclosure provide an indoor air-conditioning unit 100. For example, the indoor air-conditioning unit 100 is a duct-type indoor air-conditioning unit 100.

[0059] In some embodiments, as shown in FIG. 1, the indoor air-conditioning unit 100 includes a housing 10, and the housing 10 is fixedly connected to a ceiling or a wall of a room. The housing 10 defines a first air inlet 21 (i.e., air inlet) and a first air outlet 31 (i.e., air outlet) that are arranged oppositely. For example, the first air outlet 31 and the first air inlet 21 are oppositely arranged in a front-rear direction of the housing 10, and the first air outlet 31 is located on a front side of the first air inlet 21.

[0060] In some embodiments, as shown in FIG. 2, the indoor air-conditioning unit 100 further includes a fan assembly 40, which is disposed inside the housing 10 and located near 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 inside the housing 10 out of the housing 10 through the first air outlet 31.

[0061] In some embodiments, as shown in FIG. 1, the indoor air-conditioning unit 100 further includes a heat exchanger 50, which is disposed in the housing 10. The heat exchanger 50 and the fan assembly 40 are spaced apart from each other in a front-rear direction of the indoor air- conditioning unit 100. The heat exchanger 50 is disposed close to the first air outlet 31. Accordingly, the air drawn in through the first air inlet 21 by the fan assembly 40 passes through the heat exchanger 50 to perform heat exchange with the heat exchanger 50, and is then

6 discharged from the first air outlet 31.

[0062] In some embodiments, as shown in FIG. 1, the housing 10 includes an air inlet housing 20. A first air inlet 21 is formed on the air inlet housing 20. The fan assembly 40 is disposed in the air inlet housing 20, and the air inlet housing 20 together with the fan assembly 40 forms at least a portion of an air inlet device 23. The air inlet housing 20 includes first mounting portions 22. 22.

[0063] In some embodiments, as shown in FIG. 1, the housing 10 further includes an air outlet housing 30. A first air outlet 31 is formed on the air outlet housing 30, and the heat exchanger 50 is disposed inside the air outlet housing 30. The air outlet housing 30, together with the heat exchanger 50, forms at least a portion of an air outlet device 33, and the air outlet housing 30 includes second mounting portions 32. The second mounting portions 32 correspond in position to the first mounting portions 22 and are fixedly connected to the corresponding first mounting portions 22, thereby achieving a fixed connection between the air inlet housing 20 and the air outlet housing 30, that is, a fixed connection between the air inlet device and the air outlet device. device.

[0064] In other words, the indoor air-conditioning unit 100 includes the air inlet device 23 and the air outlet device 33. The air outlet device 33 is disposed on one side (e.g., a front side) of the air inlet device 23 and is in communication with the air inlet device 23. The air inlet device 23 includes the air inlet housing 20 and the fan assembly 40. The air outlet device 33 includes the air outlet housing 30 and the heat exchanger 50. Thus, the air drawn into the air inlet device 23 exchanges heat with the heat exchanger 50 under the action of the fan assembly 40 and then flows out through the first air outlet 31 of the air outlet device 33. Accordingly, the internal space of the indoor air-conditioning unit 100 can be utilized rationally, which contributes to a reduced size of the indoor air-conditioning unit 100 and facilitates transportation and installation of the indoor air-conditioning unit 100.

[0065] In some embodiments, as shown in FIGs. 2 to 4, the first mounting portions 22 and the second mounting portions 32 are configured as mounting holes. The air inlet device 23 and the air outlet device 33 can be detachably connected by passing first fasteners (such as bolts) through the first mounting portions 22 and the second mounting portions 32. This configuration facilitates the connection and detachment of the air inlet device 23 and the air outlet device 33, thereby facilitating transportation and maintenance of the indoor air-conditioning unit 100.

[0066] In some embodiments, as shown in FIG. 2, the air inlet housing 20 further includes two first flanges 24. The two first flanges 24 are respectively disposed on opposite side walls of the air inlet housing 20 (e.g., left and right side walls) at ends close to the air outlet housing 30. The two first flanges 24 extend in directions away from each other. The first mounting portions 22 are provided on the first flanges 24, and the first flanges 24 are fixedly connected to the air outlet housing 30 through the first mounting portions 22 and the second mounting portions 32. In some embodiments, the air inlet housing 20 may include a plurality of first flanges 24. For example, the air inlet housing 20 may include three, four, or more first flanges 24. 24.

[0067] It can be understood that the first flanges 24 can increase the contact area between the air inlet housing 20 and the air outlet housing 30, thereby improving the stability and reliability of the connection between the air inlet housing 20 and the air outlet housing 30.

[0068] In some embodiments, as shown in FIG. 2, 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 a vertical direction. Another at least two of the plurality of first mounting portions 22 are disposed on the other first flange 24 and are spaced apart in the vertical direction.

[0069] The air outlet housing 30 includes a plurality of second mounting portions 32. The plurality of second mounting portions 32 correspond to the plurality of first mounting portions 22, and the plurality of second mounting portions 32 are respectively fixedly connected to the plurality of first mounting portions 22. Thus, the reliability of the connection between the air outlet device and the air inlet device can be improved.

[0070] In some embodiments, the air inlet housing includes at least one first mounting portion, and the air outlet housing 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 fixedly connected to the at least one first mounting portion, so as to fixedly connect the air inlet housing and the air outlet housing.

[0071] In some embodiments, the at least one first mounting portion includes a plurality of first mounting portions. One 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.

[0072] In some embodiments, the one portion of the plurality of first mounting portions is provided at intervals on the one of the two first flanges along a height direction of the housing, and the other portion of the plurality of first mounting portions is provided at intervals on the other of the two first flanges along the height direction of the housing. a) In some embodiments, as shown in FIG. 5, the fan assembly 40 includes air duct members 41. The air duct members 41 are located on the side of the heat exchanger 50 close to the first air inlet 21 (for example, a rear side).

[0073] In some embodiments, as shown in FIG. 5, the fan assembly 40 further includes a motor 42. The motor 42 and the air duct members 41 are spaced apart from each other in a width direction of the indoor air-conditioning unit 100.

[0074] In some embodiments, as shown in FIG. 5, the fan assembly 40 further includes fans 43. The fans 43 are disposed inside the corresponding air duct members 41 and are in transmission connection with the motor 42. For example, the fans 43 are in transmission

8 connection with output shafts of the motor 42, and the motor 42 is configured to drive the fans 43 toto rotate. 43 rotate.

[0075] In some embodiments, as shown in FIG. 5, the fan assembly 40 further includes a motor bracket 44. The motor 42 is disposed on the motor bracket 44 and is fixedly connected to the motor bracket 44, thereby facilitating the fixed installation of the motor 42.

[0076] In some embodiments, as shown in FIG. 5, the fan assembly 40 further includes a mounting plate 45. The air duct members 41 and the motor bracket 44 are disposed on the mounting plate 45. The mounting plate 45 is disposed on a side wall of the air outlet housing close to 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.

[0077] It can be understood that the air duct members 41 and the motor bracket 44 are fixedly connected to the mounting plate 45, and the fan assembly 40 can form an integral unit, which facilitating mounting the fan assembly 40 into the indoor air-conditioning unit 100 or removing the fan assembly from the indoor air-conditioning unit 100, thereby improving the assembly efficiency of the indoor air-conditioning unit 100.

[0078] In some embodiments, as shown in FIG. 5, the fan assembly 40 includes two air duct members 41 and two fans 43. The two fans 43 are respectively disposed in the two air duct members 41. The motor 42 is disposed between the two air duct members 41. The motor 42 includes two output shafts, which are respectively in transmission connection with the two fans 43. The motor 42 is configured to drive the fans 43 in the two air duct members 41 to rotate, thereby improving the heat exchange efficiency of the heat exchanger 50.

[0079] In some embodiments, the fan assembly 40 includes a plurality of fans 43 and a plurality of air duct members 41. The motor 42 can simultaneously drive the plurality of fans 43 in the plurality of air duct members 41 to rotate. In this way, the air output of the fan assembly 40 can be increased without increasing the number of motors 42, which is beneficial for improving the utilization of space inside the housing and reducing costs.

[0080] In some embodiments, as shown in FIG. 6, the motor bracket 44 includes two motor fixing plates 800 and first support plates 820. The two motor fixing plates 800 are disposed on the mounting plate 45, fixedly connected to the mounting plate 45, and spaced apart in the width direction (i.e., a left-right direction) of the housing. Two ends (e.g., the left and right ends) of each first support plate 820 are respectively connected to the two motor fixing plates 800. The two motor fixing plates 800 are respectively fixedly connected to two ends (e.g., two axial ends) of the motor 42.

[0081] In some embodiments, the motor bracket 44 may include a plurality of motor fixing plates 800. For example, the motor brackets 44 may include three, four, or more motor fixing plates 800.

[0082] It can be understood that with the above arrangement, the mounting plate 45, the motor

9 fixing plates 800, and the first support plates 820 can form an integral structure, thereby improving the structural strength of the mounting plate 45 and the motor bracket 44. The motor fixing plates 800 provide fixed support for two axial ends of the motor 42, which improves the installation reliability of the motor 42 and enhances the operational stability of the motor 42.

[0083] In some embodiments, as shown in FIG. 6, each motor fixing plate 800 includes a plurality of first bent edges 801. Two ends of one of the two motor fixing plates 800 in the height direction (i.e., vertical direction) of the housing are bent toward the other motor fixing plate 800 to form a plurality of first bent edges 801. In this way, the structural strength of the motor fixing plates 800 can be increased, and the first bent edges 801 facilitate gripping of the motor fixing plates 800 by the user, thereby improving the assembly efficiency of the indoor air-conditioning unit.

[0084] In some embodiments, each motor fixing plate 800 and the corresponding first bent edges 801 are configured as an integral member, thereby facilitating the processing and manufacturing of the motor fixing plates 800.

[0085] In some embodiments, as shown in FIG. 6, each motor fixing plate 800 includes a second flange 802. One end of one of the two motor fixing plates 800 close to the air outlet housing is bent in a direction away from the other motor fixing plate 800 to form the second flange 802. The second flange 802 is fixedly welded to the mounting plate 45. Each motor fixing plate 800 and the corresponding second flange 802 are configured as an integral member.

[0086] It can be understood that the second flange 802 can increase the contact area between the motor fixing plates 800 and the mounting plate 45, thereby facilitating improvements in the reliability and stability of welding between the motor fixing plates 800 and the mounting plate 45. In addition, the provision of the second flanges 802 facilitates improving the structural strength of the motor fixing plates 800.

[0087] Further, the motor bracket 44 and the mounting plate 45 are fixedly connected by welding, which can avoid drilling or punching holes in 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.

[0088] In some embodiments, as shown in FIG. 6, each motor fixing plate 800 also includes a plurality of positioning posts 810. The plurality of positioning posts 810 are disposed on the second flange 802 and located at one end of the second flange 802 close to the mounting plate 45. The mounting plate 45 also 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 fitted with the plurality of positioning slots 840 in a positioning manner. The positioning posts and the positioning slots cooperate to pre-position the assembly connection between the mounting plate 45 and the motor fixing plates 800, thereby facilitating improving the assembly efficiency and assembly accuracy of the mounting plate 45 and the

10 motor fixing plates 800.

[0089] In some embodiments, as shown in FIG. 6, each motor fixing plate 800 further includes a plurality of first reinforcing ribs 811. The plurality of first reinforcing ribs 811 are arranged at intervals in the vertical direction, thereby enhancing the structural strength of the motor fixing plate 800.

[0090] 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 through the first fixing member 502.

[0091] In some embodiments, as shown in FIG. 7 and FIG. 6, the motor bracket 44 further includes two limiting plates 501. The two limiting plates 501 are respectively connected to ends of the two motor fixing plates 800 away from the mounting plate 45, and are respectively located at positions close to both axial sides of the motor 42. The first fixing member 502 is engaged with the two limiting plates 501 to form two annular engaging structures. The two axial ends of the motor 42 are respectively engaged in the two engaging structures, thereby limiting movement of the motor 42 in both axial and radial directions. For example, each limiting plate 501 and the corresponding motor fixing plate 800 are configured as an integral member. member.

[0092] 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.

[0093] In some embodiments, as shown in FIG. 6, each 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 from each other in the vertical direction, and the first limiting portion 5011 is located above the second limiting portion 5012. A first accommodating portion 5013 that is open toward the motor 42 is defined between the first limiting portion 5011 and the second limiting portion 5012.

[0094] In some embodiments, as shown in FIG. 8, 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.

[0095] Each sub-limiting member 508 includes a third limiting portion 503 and a fourth limiting portion 504. The third limiting portion 503 is engaged with the first limiting portion 5011, and the fourth limiting portion 504 is engaged with the second limiting portion 5012. A second accommodating portion 507 is defined between the third limiting portion 503 and the fourth limiting portion 504. The first accommodating portion 5013 and the second accommodating portion 507 together form the engaging structure. In this way, the stability of the motor 42 during operation can be improved, and the motor 42 can be easily disassembled and installed.

[0096] In some embodiments, the first fixing member 502 may include a plurality of sub-

11 limiting members 508. For example, the first fixing member 502 may include three, four, or more sub-limiting members 508.

[0097] In some embodiments, as shown in FIG. 7 and FIG. 8, the motor 42 includes at least one second limiting groove 500. The at least one second limiting groove 500 is provided at an axial end of the motor 42 and arranged at intervals along a circumferential direction of the motor 42. 42.

[0098] The first fixing member 502 further includes at least one limiting protrusion 505. The at least one limiting protrusion 505 is provided on at least one of the third limiting portion 503 and the fourth limiting portion 504, and corresponds to the position of the at least one second limiting groove 500. The limiting protrusion 505 is provided in the corresponding second limiting groove 500 and is configured to cooperate with the corresponding second limiting groove 500, thereby limiting relative movement between the motor 42 and the third limiting portion 503 and preventing the motor 42 from detaching from the first fixing member 502 and the limiting plates 501.

[0099] In some embodiments, as shown in FIG. 8, the first fixing member 502 further includes a connecting bar 510, and both ends of the connecting bar 510 are respectively connected to the two sub-limiting members 508.

[0100] In some embodiments, as shown in FIG. 9 and FIG. 10, the mounting plate 45 further includes hooks 452. The hooks 452 are open downward to form third limiting grooves 506.

[0101] As shown in FIG. 11 and FIG. 12, the air outlet housing 30 further includes hanging holes 35. The hanging holes 35 are provided on a side wall of the air outlet housing 30 that is close to the air inlet housing 20 (that is, a second back plate 362, see FIG. 4), and extend through the side wall in a thickness direction thereof. Referring to FIG. 10, the hooks 452 are disposed within the hanging holes 35, and the third limiting grooves 506 are engaged with the side wall of the air outlet housing 30 that is close to the air inlet housing 20.

[0102] It can be understood that the hooks 452 are disposed within the hanging holes to achieve a guiding effect on the assembly of the mounting plate and the air outlet housing, thereby facilitating the assembly of the mounting plate 45 onto the air outlet housing 30. The engagement between the third limiting grooves 506 and the side wall of the air outlet housing 30 can limit a relative position between 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.

[0103] In some embodiments, the hanging holes 35 are in the shape of a water drop, a trapezoid, a rectangle, or a triangle.

[0104] In some embodiments, as shown in FIG. 12, in a width direction of the housing, the size of an upper end of each hanging hole 35 is greater than the size of a lower end of each hanging hole 35. Thus, during the process in which the mounting plate 45 is mounted to the air

12 outlet housing, the hooks 452 can be inserted into the hanging holes 35 from the upper ends of the hanging holes 35 and then slide downward, so that the hooks 452 abut against two side walls of the lower ends of the hanging holes 35, thereby improving the reliability of engagement between the hooks 452 and the hanging holes 35 and further improving the stability of the connection between the fan assembly 40 and the air outlet housing 30.

[0105] In some embodiments, as shown in FIG. 11, the air outlet housing 30 includes a plurality of hanging holes 35, and the plurality of hanging holes 35 are provided corresponding to the two air duct members 41. Correspondingly, the mounting plate 45 includes a plurality of hooks 452. The plurality of hooks 452 are correspondingly disposed in the plurality of hanging holes 35, so as to improve the reliability of the connection between the air outlet housing and the mounting plate.

[0106] For example, the air outlet housing 30 includes eight hanging holes 35. Four of the eight hanging holes 35 are circumferentially arranged along a second air outlet 310 (which will be described in detail below) of one air duct member 41, and the other four hanging holes 35 are circumferentially arranged along a second air outlet 310 of the other air 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.

[0107] It should be noted that the air outlet housing 30 may also include two hanging holes 35, and the mounting plate 45 includes two hooks 452 corresponding to the two hanging holes. The present disclosure is not limited thereto.

[0108] In some embodiments, as shown in FIG. 5 and FIG. 6, the mounting plate 45 includes a plurality of third mounting portions 451, and the air outlet housing 30 includes a plurality of fourth mounting portions 34. The plurality of third mounting portions 451 respectively correspond to the plurality of fourth mounting portions 34 and are fixedly connected to the plurality of fourth mounting portions.

[0109] For example, the third mounting portions 451 and the fourth mounting portions 34 are configured as mounting holes. The plurality of third mounting portions 451 are arranged at positions corresponding to the plurality of fourth mounting portions 34. Each third mounting portion 451 is fixedly connected to a corresponding fourth mounting portion 34 by a bolt, which facilitates assembly and disassembly between the mounting plate 45 and the air outlet housing 30. 30.

[0110] During the installation process of the mounting plate 45 and the air outlet housing 30, the hooks 452 and the hanging holes 35 serve a guiding function. The mounting plate 45 and the air outlet housing 30 are first positioned by the hooks 452 and the hanging holes 35, and then fixedly connected by the third mounting portions 451 and the fourth mounting portions 34, thereby improving the installation efficiency and connection reliability between the mounting plate 45 and the air outlet housing 30.

13

[0111] In some embodiments, as shown in FIG. 13, the air inlet housing 20 includes a first base 25. The first base 25 includes a first bottom plate 251 and two first side plates 252 arranged opposite to each other. The two first side plates 252 are respectively connected to left and right ends of the first bottom plate 251. For example, in the width direction of the housing, the two first side plates are respectively connected to two opposite ends of the first bottom plate.

[0112] In some embodiments, as shown in FIG. 13, the air inlet housing 20 further includes a first back plate 26. The first back plate 26 is disposed on a rear side of the first bottom plate 251 and the first side plates 252, and is detachably connected to the first bottom plate 251 and the first side plates 252. The first air inlet 21 is provided in the first back plate 26 and extends through the first back plate 26 in a thickness direction of the first back plate 26.

[0113] In some embodiments, as shown in FIG. 13, the air inlet housing 20 further includes a first top plate 27. The first top plate 27 is disposed on tops of the first side plates 252 and is detachably connected to the first top plate 27. In this way, when the fan assembly 40 malfunctions, the first top plate 27 can be removed to allow maintenance of the fan assembly 40.

[0114] In some embodiments, the first base 25 is an integral member. The top of the first base 25 is open, so as to be detachably connected to the first top plate 27. Front and rear sides of the first base 25 are open, so as to facilitate delivering the air drawn in by the air inlet housing 20 to the air outlet housing 30.

[0115] In some embodiments, as shown in FIG. 2 and FIG. 13, the first back plate 26 includes a plate body 200 and an air guide ring 201. The first air inlet 21 is formed in the plate body 200. The air guide ring 201 is disposed on one side of the plate body 200 away from the air outlet housing. The air guide ring 201 surrounds the first air inlet 21 and extends toward a direction away from the air outlet housing, thereby serving an air guiding function, i.e., changing an air intake direction of the first air inlet 21. For example, the first air inlet 21 is elliptical, and the air guide ring 201 is an elliptical annular plate, so that the air intake area of the first air inlet 21 can be expanded without increasing the material of the air guide ring, thereby increasing the intake intake volume. volume.

[0116] In some embodiments, as shown in FIG. 2 and FIG. 13, the dimension of the first air inlet 21 in the left-right direction is greater than the length of the air duct member 41 in the left- right direction. In this way, the air drawn in from the first air inlet 21 can enter the air duct member 41 through the second air inlets 230 on both sides of the air duct member 41, thereby enlarging the air intake area and improving the heat exchange efficiency of the heat exchanger 50. 50.

[0117] For example, the dimension of the first air inlet 21 in the left-right direction is greater than the dimension of the first air inlet 21 in the vertical direction.

[0118] In some embodiments, the plate body 200 and the air guide ring 201 are integrally

14 formed, so as to facilitate the manufacturing of the first back plate 26.

[0119] In some embodiments, as shown in FIG. 5 and FIG. 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 one end of the second bottom plate 361 close to the air inlet housing. A 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.

[0120] For example, the second base 36 is an integral member, thereby improving the structural strength and rigidity of the second base 36, and also improving the production efficiency of the second base 36.

[0121] In some embodiments, as shown in FIG. 5 and FIG. 14, the air outlet housing 30 further includes two second side plates 37, which are respectively disposed on two sides of the second bottom plate 361 in the width direction of the housing, and are detachably connected to the second bottom plate 361. The two second side plates 37 are respectively disposed on two sides of the second back plate 362 in the width direction of the housing, and are detachably connected to the second back plate 362.

[0122] In some embodiments, as shown in FIG. 5, the air outlet housing 30 further includes a second top plate 38. The second top plate 38 is disposed on tops 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.

[0123] In some embodiments, as shown in FIG. 1, 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. That is, the second top plate 38, the second bottom plate 361, and front sides of the two second side plates 37 together form the first air outlet 31, so that the first air outlet can be disposed opposite to the first air inlet to facilitate air suction and air discharge of the indoor air-conditioning unit.

[0124] In some embodiments, as shown in FIG. 14, the second base 36 further includes a flange portion 400, which is connected to one end of the second bottom plate 361 that is away from the second back plate 362. The flange portion 400 extends along the width direction of the housing and is bent upwards. An upper edge of the flange portion 400 constitutes a lower end of the first air outlet 31. For example, the flange portion 400 and the second bottom plate 361 are formed as an integral member.

[0125] It can be understood that the flange portion 400 is bent relative to the second bottom plate 361, which can limit an airflow direction of the first air outlet 31. In addition, the heat exchanger 50 is disposed at the second base 36. During the operation of the heat exchanger 50, condensate water is generated and drips downward into the second base. In this case, the flange portion 400 can prevent the condensate water from overflowing from the first air outlet 31, thereby helping to improve the reliability of operation of the indoor air-conditioning unit 100.

15

[0126] In some embodiments, at least one of the first base 25 and the second base 36 is a metal structural member, which facilitates rapid forming of the first base 25 and the second base, and can improve 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 configured as an integral member madeofofaa metal made metalmaterial. material.

[0127] In some embodiments, in the width direction of the housing, the dimension of the air inlet housing 20 is smaller than the dimension of the air outlet housing 30. Thus, the air inlet housing 20 has a smaller volume compared with the air outlet housing 30, so that the air inlet housing 20 can be installed in a smaller space. For example, the air inlet housing 20 can be installed on beams of a triangular roof, which is advantageous for improving the installation adaptability of the indoor air-conditioning unit.

[0128] In some embodiments, as shown in FIG. 11 and FIG. 14, the air outlet housing 30 further includes two ventilation holes 401. The two ventilation holes 401 are formed in the second back plate 362 and spaced apart from each other and extend through the second back plate 362 in a thickness direction of the second back plate 362. The two ventilation holes 401 respectively correspond to the positions of two fans 43 in the fan assembly 40. The fans 43 can deliver the air drawn in to the heat exchanger 50 in the air outlet housing 30 via the ventilation holes 401.

[0129] In some embodiments, as shown in FIG. 6, the mounting plate 45 further includes two ventilation openings 850. The two ventilation openings 850 correspond to the two ventilation holes 401. Thus, the mounting plate 45 can be prevented from blocking the airflow between the fan assembly 40 and the interior of the housing.

[0130] In some embodiments, the air outlet housing 30 includes a plurality of ventilation holes 401, and the fan assembly 40 includes a plurality of fans 43, and the plurality of ventilation holes 401 respectively correspond in position to the plurality of fans 43. Thus, the airflow rate of the fan assembly 40 can be further increased, thereby improving the heat exchange efficiency of the heat exchanger 50. In some embodiments, the mounting plate 45 may include a plurality of ventilation openings 850, and the plurality of ventilation openings 850 correspond to the plurality of ventilation holes 401. For example, the mounting plate 45 may include three, four, or more ventilation openings 850.

[0131] In some embodiments, as shown in FIG. 14, the air outlet housing 30 further includes two second bent edges 402. The two second bent edges 402 are respectively located at edges of the two ventilation holes 401 that are away from each other.

[0132] In some embodiments, as shown in FIG. 7, the air duct member 41 may be configured as a volute, and the air duct member 41 includes two second air inlets 230 and a second air outlet 310. Left and right sides of the air duct member 41 are open to form two second air inlets 230 opposite to each other, which are in communication with each other. The front side of the air duct member 41 is open to form a second air outlet 230, which is in communication with the

16 two second air inlets 230. The second air outlets 310 are arranged opposite to the ventilation holes 401 in a front-rear direction, and the second bent edges 402 are guided to fit with edges of the second air outlets 310, thereby ensuring uniform airflow at connections between the second air outlets 310 and the ventilation holes 401.

[0133] In some embodiments, the second back plate 362 is detachably connected to the air inlet housing 20, and the second back plate 362 is also detachably connected to the fan assembly 40. Thus, during the installation of the indoor air-conditioning unit 100, the air outlet housing 30, the air inlet housing 20, and the fan assembly 40 can each be brought into an installation space on a roof through a maintenance opening.

[0134] In some embodiments, as shown in FIG. 11 and FIG. 12, the indoor air-conditioning unit 100 further includes a temperature sensor 410. The temperature sensor 410 is located at one side (for example, one side in the left-right direction) of the ventilation holes 401 and is configured to detect the temperature of the air. Accordingly, based on an actual temperature value detected by the temperature sensor 410, the indoor air-conditioning unit 100 can adjust an air supply temperature in real time.

[0135] In some embodiments, as shown in FIG. 15, 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 is in engaging fit with the third engaging portion 411, so that the temperature sensor 410 is detachably connected to the second back plate 362, thereby facilitating assembly and disassembly of the temperature sensor 410.

[0136] In some embodiments, as shown in FIG. 11 and FIG. 15, the second back plate 362 further includes a mounting boss 412. A portion of the second back plate 362 protrudes toward a direction close to the air inlet housing 20 to form the mounting boss 412. The fourth engaging portion 3622 is disposed on the mounting boss 412.

[0137] For example, the third engaging portion 411 is configured as a buckle, and the fourth engaging portion 3622 is configured as an engaging hole. The buckle is fitted and engaged with the engaging hole, thereby achieving a detachable connection between the temperature sensor 410 and the second back plate 362.

[0138] In some embodiments, as shown in FIG. 5, the second back plate 362 includes a plurality of limiting ribs 210. The plurality of limiting ribs 210 are disposed around the fan assembly 40. The plurality of limiting ribs 210 are respectively in a limiting fit with the air inlet housing 20 in the vertical direction and in the left-right direction. For example, each limiting rib 210 is trapezoidal, thereby facilitating assembly of the air inlet housing and the air outlet housing in a front-rear direction.

[0139] In addition, the limiting ribs 210 can pre-position the air inlet housing and the air outlet housing during assembly, thereby improving the assembly efficiency.

[0140] In some embodiments, the limiting ribs 210 serve a limiting fit function, thereby

17 preventing relative displacement between the air outlet housing 30 and the air inlet housing 20.

[0141] In some embodiments, as shown in FIG. 11 and FIG. 16, the plurality of limiting ribs 210 include a plurality of first limiting ribs 211, which are respectively located on both left and right sides of the fan assembly 40. Each first limiting rib 211 includes a first guiding inclined surface 220. Edges of left and right sides of the air inlet housing 20 are guided by the first guide inclined surfaces 220 and then are in a limiting fit with the first limiting ribs 211 in the left- right direction.

[0142] In some embodiments, the plurality of first limiting ribs 211 include four first limiting ribs 211. Two of the 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 are in limiting engagement with each other in the left-right direction.

[0143] In some embodiments, the first guide inclined surface 220 is configured to guide the left and right sides of the air inlet housing 20, which facilitates the assembly of the air inlet housing 20 and the air outlet housing 30.

[0144] In some embodiments, as shown in FIG. 11 and FIG. 17, the plurality of limiting ribs 210 include a plurality of second limiting ribs 212, which are respectively located on upper and lower sides of the fan assembly 40. Each second limiting rib 212 includes a second guide inclined surface 221.

[0145] In some embodiments, as shown in FIG. 18 and FIG. 19, the air inlet housing 20 includes a plurality of first limiting grooves 240. The plurality of first limiting grooves 240 are provided at edges of the first top plate 27 and edges of the first bottom plate 251. The plurality of first limiting grooves 240 correspond in position to the plurality of second limiting ribs 212. The first limiting grooves 240 are in limiting engagement with the second limiting ribs 212 in the vertical direction under the guiding action of the second guide inclined surfaces 221.

[0146] For example, the plurality of second limiting ribs 212 include four second limiting ribs 212. Two of the second limiting ribs 212 are provided close to an upper end of the second back plate 362, and the other two of the second limiting ribs 212 are provided close to a lower end of the second back plate 362. Alternatively, the plurality of second limiting ribs 212 include two second limiting ribs 212, and the two second limiting ribs 212 are provided close to the upper end of the second back plate 362.

[0147] It can be understood that the plurality of limiting ribs 210 are in limiting engagement with the plurality of first limiting grooves 240. During the process in which the plurality of limiting ribs 210 are engaged with the plurality of first limiting grooves 240, the plurality of limiting ribs 210 play a guiding role, thereby facilitating assembly between the plurality of limiting ribs 210 and the air inlet housing 20, and enabling the limiting ribs 210 to be in limiting

18 engagement with the first limiting grooves 240, thereby preventing displacement between the air inlet housing 20 and the air outlet housing 30, and improving the stability of the air inlet housing 20 and the air outlet housing 30.

[0148] In some embodiments, as shown in FIG. 20, 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 opposite to each other in a front-rear direction, and are configured to indicate a relative assembly position between the air inlet housing 20 and the air outlet housing 30, so as to facilitate positioning fit between the air inlet housing 20 and the air outlet housing 30. For example, the first alignment mark is provided on a top surface of the air inlet housing 20 and located at a centerline in the left-right direction, and the second alignment mark is provided on a top surface of the air outlet housing 30 and located at the centerline in the left-right direction.

[0149] For example, the first alignment mark 250 and the second alignment mark 260 may be configured as indication arrows, thereby facilitating positioning and installation of the air inlet housing 20 and the air outlet housing 30 by means of arrow marks, so as to improve the installation efficiency of the indoor air-conditioning unit 100.

[0150] It should be noted that, during an assembly process of the air inlet housing 20 and the air outlet housing 30, initial alignment between the air inlet housing 20 and the air outlet housing 30 is achieved by means of the first alignment mark 250 and the second alignment mark 260, and then the air inlet housing 20 and the air outlet housing 30 are fixedly connected by means of fixing bolts, thereby improving the assembly efficiency of the air inlet housing 20 and the air outlet housing 30.

[0151] In some embodiments, a noise-reducing sponge is attached inside the air inlet housing 20, and the noise-reducing sponge is configured to absorb noise of incoming air. The noise- reducing sponge is also attached around the periphery of the air inlet housing 20 to absorb noise generated by the fans 43.

[0152] In some embodiments, as shown in FIG. 5 and FIG. 21, the air duct member 41 is configured as a volute. The fans 43 are disposed inside the corresponding air duct members 41 and are and are in in transmission transmission connection with the connection with the motor motor42. 42.

[0153] In some embodiments, as shown in FIG. 21, each air duct member 41 further includes a first a firstvolute volute 301 anda asecond 301 and second volute volute 302.302. The The firstfirst volute volute 301 301 is is connected connected to the volute to the second second volute 302 and is disposed above the second volute 302. The first volute 301 and the second volute 302 jointly define the second air inlets 230 and the second air outlet 310. The fans 43 are configured to draw air from the second air inlets 230 and discharge air from the second air outlet 310.

[0154] In some embodiments, as shown in FIG. 22, each air duct member 41 further includes an air deflector 320. The air deflector 320 is disposed on at least one of the first volute 301 and

19 the second volute 302, and is disposed close to the second air outlet 310. The air deflector 320 is configured to guide air at the second air outlet 310, thereby homogenizing air supply by the fan assembly 40 and improving the heat exchange efficiency of the heat exchanger.

[0155] In some embodiments, as shown in FIG. 22, the air deflector 320 is disposed on an upper surface of a bottom wall of the first volute 301. And/or, the air deflector 320 is disposed on a lower surface of a top wall of the second volute 302.

[0156] It can be understood that the air deflector 320 disposed in the first volute 301 can guide air at an upper surface of the second air outlet 310. The air deflector 320 can increase the air discharge area at the first volute 301, and homogenize the air supply at the upper surface of the second air outlet 310. Similarly, the air deflector 320 disposed in the second volute 302 can guide air at a lower surface of the second air outlet 310. The air deflector 320 can increase an air discharge area at the second volute 302, and homogenize the air supply at the lower surface of the second air outlet 310.

[0157] In some embodiments, as shown in FIG. 22, each air duct member 41 includes at least two air deflectors 320. The at least two air deflectors 320 are arranged at intervals in a left-right direction (that is, the width direction of the housing, which is also a width direction of the indoor air-conditioning unit) on at least one of the first volute 301 and the second volute 302. Thus, the uniformity of air supply at the second air outlet 310 can be further improved. The at least two air deflectors 320 are arranged at intervals in the left-right direction, thereby reducing the disturbance of air supply caused by the air deflectors 320 in the left-right direction, and facilitating improving the stability of air guiding by the air deflectors 320.

[0158] In some embodiments, as shown in FIG. 22, in an air supply direction, an air guide area with an increasing spacing is formed between two adjacent air deflectors 320 in the first volute 301 and/or the second volute 302, thereby enlarging the air outlet area.

[0159] In some embodiments, as shown in FIG. 22, at least a portion of the air deflector 320 is configured as a bent plate 350. The bent plates 350 of two adjacent air deflectors 320 in the first volute 301 and/or the second volute 302 are arranged opposite to each other in the left- right direction and bent in directions away from each other. For example, the bent plate 350 is bent into an arc shape. In this way, the disturbance of airflow when passing through the air deflectors 320 can be reduced, which is advantageous for making the air supply more uniform.

[0160] In some embodiments, as shown in FIG. 22, in the air supply direction, the height of the air deflector 320 first increases and then decreases, or the height of the air deflector 320 increases increases and and then then remains constant. remains constant.

[0161] For example, each air duct member 41 includes two air deflectors 320, which are disposed in the first volute 301. The height of the two air deflectors 320 first increases and then decreases, that is, the air deflector 320 is trapezoidal. In this way, in the air supply direction, the airflow passing through the air deflectors 320 can first flow downward and then upward, thereby expanding the air outlet area of the fan assembly in the vertical direction.

[0162] For example, the air duct member 41 includes two air deflectors 320, which are disposed in the second volute 302. The height of the two air deflectors 320 first increases and then remains constant. In this way, the air deflectors 320 can guide air upward, thereby increasing the air supply height of the second air outlet 310 and enlarging the air guide area.

[0163] In some embodiments, as shown in FIG. 21 and FIG. 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 the 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 a horizontal plane, thereby reducing the thickness of the first volute 301 and the second volute 302, and consequently reducing the overall thickness of the indoor air-conditioning unit 100.

[0164] In some embodiments, as shown in FIG. 24, the first volute 301 includes a top plate 360 and two upper side plates 3621, which are respectively connected to two ends of the top plate 360 corresponding to the second air inlets 230.

[0165] In some embodiments, as shown in FIG. 24, the first volute 301 further includes a volute tongue 3611. The volute tongue 3611 is connected to one end of the top plate 360 close to the second air outlet 310.

[0166] In some embodiments, as shown in FIG. 25, 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 two ends of the bottom plate 364 corresponding to the two second air inlets 230. The lower side plates 363 extend to the second air outlet 310 in the air supply direction. The two upper side plates 3621 are correspondingly and fixedly connected to the two lower side plates 363.

[0167] 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 jointly define the second air outlet 310.

[0168] In some embodiments, as shown in FIG. 23 and FIG. 25, edges of the first volute 301 and the second volute 302 close to each other are configured as matching curved surfaces. In this way, the reliability of the connection between the first volute 301 and the second volute 302 can be improved by means of curved surface engagement between the first volute 301 and the second volute 302.

[0169] In some embodiments, the air supply amount can be changed by changing the shapes and sizes of the volute tongue 3611, the bottom plate 364, and the lower side plates 363. Thus, by enlarging the size of the second air outlet 310, the air supply amount can be increased.

[0170] In some embodiments, as shown in FIG. 22, in the air supply direction (i.e., direction

21

S), the distance between the two lower side plates 363 gradually increases, which facilitates improving the air output and air outlet area of the fan assembly.

[0171] In some embodiments, as shown in FIG. 21 and FIG. 24, the first volute 301 further includes a first engaging portion 370. The first engaging portion 370 is provided on the top plate 360 and located at one end of the top plate 360 away from the second air outlet.

[0172] In some embodiments, as shown in FIG. 21 and FIG. 25, the second volute 302 further includes a second engaging portion 380. The second engaging portion 380 is provided at one end of the bottom plate 364 away from the second air outlet and corresponds in position to the first engaging portion 370. The first engaging portion 370 and the second engaging portion 380 are engaged with each other.

[0173] For example, the first engaging portion 370 is a clamping groove, and the first engaging portion 370 is a buckle. The clamping groove and the buckle are engaged with each other, which facilitates the detachable connection between the first volute 301 and the second volute 302, thereby improving the assembly efficiency of the volutes.

[0174] In some embodiments, the first volute 301 includes a plurality of first engaging portions 370. The plurality of first engaging portions 370 are spaced apart in an axial direction of the first volute 301. The second volute 302 includes a plurality of second engaging portions 380. The plurality of second engaging portions 380 are correspondingly spaced apart in an 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. In this way, the engagement reliability between the first volute 301 and the second volute 302 can be improved.

[0175] In some embodiments, as shown in FIG. 26 and FIG. 27, the indoor air-conditioning unit 100 further includes a drain pan 600. The drain pan 600 is disposed in the air outlet housing 30 and located below the heat exchanger 50. The drain pan 600 is configured to collect condensate water generated by the heat exchanger 50, thereby preventing the condensate water from flowing to the outside through gaps in the housing.

[0176] The drain pan 600 includes a drain pan body 601 and a first baffle rib 603. The first baffle rib 603 is disposed on the drain pan body 601 and extends along a length direction of the drain pan body 601 (that is, the left-right direction as shown in FIG. 27). The heat exchanger 50 abuts against the drain pan body 601, and the first baffle rib 603 is located on one side of the heat exchanger 50 close to the fan assembly. In this way, airflow from the fan assembly is blocked by the first baffle rib 603 and changes a flow direction (for example, flow upward and toward the heat exchanger), thereby preventing the condensate water from being affected by the airflow and splashing outside the drain pan 600, which could otherwise cause a short circuit in internal circuits of the indoor air-conditioning unit.

[0177] In some embodiments, as shown in FIG. 28 and FIG. 29, the drain pan 600 includes a first flow baffle portion 610. The first flow baffle portion 610 is disposed on the drain pan body

22

601 and extends in the length direction of the drain pan body 601. The first flow baffle portion 610 is located on one side of the first baffle rib 603 close to the first air outlets 31, and is spaced apart from the first baffle rib 603. A side surface of the first flow baffle portion 610 facing the heat exchanger 50 is substantially parallel to a side surface of the heat exchanger 50 facing the first flow baffle portion 610.

[0178] In this way, distances from various positions at the bottom of the heat exchanger 50 to the first flow baffle portion 610 are equal, thereby avoiding uneven condensate discharge caused by side blowing on the first flow baffle portion 610, and further improving the discharge efficiency of condensate water.

[0179] In some embodiments, a distance between the side surface of the first flow baffle portion 610 facing the heat exchanger 50 and the side surface of the heat exchanger 50 facing the first flow baffle portion 610 is D, which is any value in a range from 8 mm to 20 mm (i.e., 8 mm ≤ d ≤ 20 mm). For example, the distance D may be any value in a range from 8 mm to 12 mm, any value in a range from 12 mm to 16 mm, or any value in a range from 16 mm to 20 mm. mm.

[0180] With the above arrangement, the distance between the first flow baffle portion 610 and the heat exchanger 50 is relatively small, so that airflow changes the speed over a short path, thereby forming a high-pressure area that pushes condensate water upward while maintaining a sufficient gap between the first flow baffle portion 610 and the heat exchanger 50 to accommodate condensate water, effectively preventing condensate from splashing outside the drain pan 600.

[0181] In some embodiments, as shown in FIG. 28 and FIG. 29, the drain pan 600 further includes two second baffle ribs 612. The two second baffle ribs 612 are disposed on the drain pan body 601 and extend in a width direction of the drain pan body 601 (i.e., the front-rear direction). The two second baffle ribs 612 are respectively located on both sides of the first baffle rib 603 in the length direction of the drain pan body and are spaced apart from the first baffle rib 603, thereby forming a drainage channel 604. In some embodiments, the drain pan 600 may include a plurality of second baffle ribs 612. For example, the drain pan 600 may include three, four, or more second baffle ribs 612.

[0182] In some embodiments, as shown in FIG. 29, the drain pan 600 further includes a drainage port 650, which is provided on one side of the drain pan body 601. One end of the drainage port 650 is in communication with the drainage channel, and the other end of the drainage port 650 is in communication with the exterior of the indoor air-conditioning unit.

[0183] In this way, when condensate water from the heat exchanger 50 directly falls into the area enclosed by the second baffle rib 612 and the first baffle rib 603, the condensate water can flow along the drainage channel 604 into a high-pressure area and be discharged at the drainage port 650. Moreover, the second baffle ribs 612 and the first baffle rib 603 can also form a certain barrier against splashed condensate water.

23

[0184] In some embodiments, as shown in FIG. 27, the indoor air-conditioning unit 100 further includes two second support plates 910. The two second support plates 910 are respectively disposed at 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 on the drain pan body 601. For example, the second support plates 910 are connected to end plates at the left and right ends of the heat exchanger 50.

[0185] Each second baffle rib 612 includes a guide surface 640. The guide surface 640 is a side surface of the second baffle 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 respectively located on the sides of the two second baffle ribs 612 facing away from each other, and respectively abut against the two guide surfaces 640 of the two second baffle ribs 612, so as to improve the installation efficiency of the second support plates 910.

[0186] It can be understood that the second support plates 910 are fixed on the drain pan body 601, and the left and right ends of the heat exchanger 50 are fixedly connected to the second support plates 910, so that the drain pan body 601, the second support plates 910, and the heat exchanger 50 form an integral unit, which is beneficial to improving the structural strength and the stability of operation of the heat exchanger 50.

[0187] In some embodiments, as shown in FIG. 27, the drain pan 600 further includes a plurality of positioning ribs 613, which are disposed at left and right ends of the drain pan body 601. The positioning ribs 613 are spaced apart from the second baffle ribs 612 in the left-right direction and cooperate with the second support plates 910. For example, the positioning ribs 613 and the second baffle ribs 612 jointly limit the second support plates 910.

[0188] It can be understood that the provision of the positioning ribs 613 can improve the structural strength of the drain pan body 601, and the positioning ribs 613 together with the second support plates 910 form a limiting structure for the second support plates 910, which can restrict the movement of the second support plates 910 in the left-right direction, and also have a positioning effect during installation of the second support plates 910, thereby facilitating improving the installation efficiency of the heat exchanger and the second support plates.

[0189] In some embodiments, the positioning ribs 613 are configured as plate-shaped members, and the plurality of positioning ribs 613 are spaced apart in the front-rear direction, thereby further improving the structural strength and bending-torsion rigidity of the drain pan body 601.

[0190] In some embodiments, as shown in FIG. 27, the drain pan 600 further includes a thermal insulation member 620, and the drain pan body 601 is disposed within the thermal insulation member 620. The thermal insulation member 620 is configured to provide thermal insulation for the drain pan body 601. For example, the thermal insulation member 620 surrounds the bottom of the drain pan body 601 and is fitted with the bottom of the drain pan

24 body 601. The thermal insulation member 620 is made of a foam material, having the characteristics of light weight, heat insulation, waterproofing, shockproofing, sound insulation, andcorrosion and corrosion resistance. resistance.

[0191] In some embodiments, as shown in FIG. 27, a side surface of the thermal insulation member 620 close to the drain pan body 601 is recessed in a direction away from the drain pan body 601 to form an accommodating groove 621. An inner contour of the accommodating groove 621 matches the drain pan body 601, and the drain pan body 601 is disposed within the accommodating groove 621.

[0192] In some embodiments, as shown in FIG. 27, the drain pan 600 includes a plurality of second reinforcing ribs 602. The plurality of second reinforcing ribs 602 are disposed at the bottom of the drain pan body 601 and are located within the accommodating groove 621. The plurality of second reinforcing ribs 602 can improve the structural strength of the drain pan body 601, thereby improving the structural reliability of the drain pan 600.

[0193] In some embodiments, as shown in FIG. 29, the drain pan body 601 includes a flow guide surface 611. The flow guide surface 611 is a portion of a side surface of the drain pan body 601 close to the heat exchanger 50. The flow guide surface 611 is located on one side of the first baffle rib 603 close to the first air outlet and located between the two second baffle ribs 612. The flow guide surface 611 is arranged obliquely, and one end of the flow guide surface 611 close to the first air outlet is higher than one end of the flow guide surface 611 away from the first air outlet.

[0194] In this way, the condensate water dripping from the heat exchanger 50 can flow along the flow guide surface 611 to the drainage channel, and then flow out to the exterior of the housing via the drainage port 650, thereby improving the drainage efficiency of the drain pan 600. 600.

[0195] In some embodiments, as shown in FIG. 30 and FIG. 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, and 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 left and right edges of the first air outlet 31. The extension plates 900 are fixedly connected to the second support plates 910, thereby improving the connection strength between the second support plates 910 and the air outlet housing 30.

[0196] In some embodiments, the extension plate 900 extends in the left-right direction and is integrated with the second side plate 37. Thus, by connecting the second support plates 910 to the extension plates 900, the second support plates 910 can be connected and fixed to the housing 10, and the heat exchanger 50 can also be conveniently fixed to the housing 10.

[0197] In some embodiments, as shown in FIG. 27 and FIG. 30, the heat exchanger 50 is

25 obliquely arranged in the air outlet housing 30. For example, one end of the heat exchanger 50 close to the first air outlet 31 is higher than one end of the heat exchanger 50 at the original first air outlet 31. The second support plates 910 are configured as right-angled triangles. The two second support plates 910 are disposed below the heat exchanger 50, and are respectively located at positions close to the left and right ends of the heat exchanger 50. Top surfaces (i.e., surfaces in which hypotenuses of the right-angled triangles are located) of the second support plates 910 are fixedly connected to a bottom surface of the heat exchanger 50.

[0198] In this way, the width of the heat exchanger 50 is greater than the dimension of the housing 10 in the vertical direction, thereby expanding the area of the side surface of the heat exchanger 50 close to the first air inlet, increasing the heat exchange area of the heat exchanger 50, and improving the heat exchange efficiency of the heat exchanger 50 for indoor air.

[0199] Moreover, by configuring the second support plates 910 as right-angled triangles, the support stability of the second support plates 910 is improved, allowing the second support plates 910 to more stably support and fix the heat exchanger 50 from below, thereby enhancing the reliability of the connection between the heat exchanger 50 and the housing 10.

[0200] In some embodiments, as shown in FIG. 32, each second support plate 910 includes a support plate body 911 and a third flange 920. The third flange 920 is connected to a top end of the support plate body 911 and is fixedly connected to the heat exchanger 50. The third flange 920 is bent toward a direction away from the corresponding second side plate 37. Thus, along the length direction of the heat exchanger 50, the third flange 920 can extend toward a middle portion of the heat exchanger 50 without protruding beyond the heat exchanger 50, which can prevent interference between the third flange 920 and other components, and facilitate the arrangement of components within the air outlet housing 30.

[0201] In some embodiments, as shown in FIG. 32, the second support plate 910 further includes a fourth flange 930. The fourth flange 930 is connected to one 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.

[0202] In some embodiments, as shown in FIG. 32, the second support plate 910 further includes a fifth flange 940. The fifth flange 940 is connected to a 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 a direction close to the corresponding second side plate 37.

[0203] It can be understood that the fourth flange 930 and the fifth flange 940 are bent toward a direction close to the corresponding second side plate 37, which can balance forces acting on the second support plate 910 in the left-right direction of the housing 10, thereby improving the structural stability of the second support plate 910.

[0204] In some embodiments, the fifth flange 940 is supported and fixed on the drain pan 600.

[0205] In some embodiments, the third flange 920, the fourth flange 930, and the fifth flange

26

940 may be bent in the same direction, which can simplify the structure of the second support plate 910.

[0206] 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.

[0207] 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 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 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 located between the fifth flange 940 and the support plate body 911.

[0208] In this way, the structural strength of the third flange 920, the fourth flange 930, and the fifth flange 940 can be enhanced, thereby improving the overall structural strength of the second support plate 910, and further enhancing the stability of the connections between the second support plate 910 and the heat exchanger 50, as well as between the second support plate 910 and the housing 10.

[0209] In some embodiments, as shown in FIG. 32, the second support plate 910 further includes a flow guiding portion 960. The flow guiding portion 960 is disposed on the support plate body 911 and protrudes from at least one side of the support plate body in a thickness direction of the support plate body 911. The flow guiding portion 960 is configured to guide condensate water flowing onto the surface of the second support plate 910 into the drain pan 600.

[0210] It can be understood that the second support plate 910 is arranged close to an edge of the drain pan 600, and the edge of the drain pan 600 is prone to water leakage outward. Therefore, by providing the flow guiding portion 960 on the second support plate 910, condensation water on the surface of the second support plate 910 can gradually flow into the drain pan 600, thereby preventing condensation water from flowing outside the drain pan 600.

[0211] In some embodiments, the flow guiding portion 960 is configured as a rib and is inclined relative to the drain pan 600, so that condensation water can flow along an extending direction of the rib.

[0212] In some embodiments, the flow guiding portion 960 protrudes from one side of the second support plate 910 toward the corresponding second side plate 37. In this way, the third flange 920 and the flow guiding portion 960 are respectively located on opposite sides of the support plate body 911, which can prevent the third flange 920 from blocking condensate water from flowing to one side of the second support plate 910 facing the second side plate 37, thereby improving the drainage effect of the drain pan.

27

[0213] In some embodiments, the second support plate 910 includes a plurality of flow guiding portions 960. The plurality of flow guiding portions 960 are arranged at intervals, and the distance between two adjacent flow guiding portions 960 increases in a direction from the top down.

[0214] Thus, the plurality of flow guiding portions 960 can simultaneously guide condensation water, thereby improving the guiding effect of the flow guiding portions 960 on the condensation water. In addition, the plurality of flow guiding portions 960 are not parallel to each other, so that the condensation water guided by different flow guiding portions 960 does not interfere with each other, thereby preventing condensation water from accumulating on the second support plate 910.

[0215] In some embodiments, as shown in FIG. 31 and FIG. 33, the indoor air-conditioning unit 100 further includes a second fixing member 970. The second fixing member 970 is in the form of a long strip. One end of the second fixing member 970 is connected to a side surface of the heat exchanger 50 opposite to 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 is away from the air inlet housing 20.

[0216] Thus, the lower side of the heat exchanger 50 is fixedly connected to the second support plate 910, and an end portion of an upper side surface of the heat exchanger 50 that is close to the first air outlet is connected to the air outlet housing 30 via the second fixing member 970. In other words, the second support plate 910 and the second fixing member 970 jointly fix the heat exchanger 50, thereby improving the connection strength between the heat exchanger 50 and the housing 10 and facilitating improving the stability and reliability of the heat exchanger 50.

[0217] In some embodiments, as shown in FIG. 31 and FIG. 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 is connected to a middle portion of the heat exchanger 50, and the seventh flange 990 is connected to at least one of a side wall of the air outlet housing that is away from the air inlet housing and a top wall of the air outlet housing.

[0218] 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 housing, as well as the contact area between the second fixing member 970 and the heat exchanger 50, can be increased, thereby improving the connection reliability between the second fixing member 970 and the air outlet housing, and between the second fixing member 970 and the heat exchanger 50.

[0219] In some embodiments, as shown in FIG. 26 and FIG. 34, the indoor air-conditioning unit 100 further comprises a controller 700. The controller 700 is disposed on one side of the

28 air outlet housing 30 (for example, on one side in the left-right direction), thereby facilitating installation and maintenance of the controller 700.

[0220] In some embodiments, as shown in FIG. 34, the controller 700 comprises a box 701. The box 701 is disposed on one side of the air outlet housing 30. For example, the box 701 is disposed on one side of the air outlet housing 30 in the left-right direction of the air outlet housing.

[0221] In some embodiments, as shown in FIG. 34, the controller 700 comprises a box cover 702. The box cover 702 is fitted over the box 701.

[0222] In some embodiments, as shown in FIG. 34, the controller 700 includes an electric control board 760. The electric control board 760 is disposed inside the box 701 and is located within an accommodating space defined by the box 701 and the box cover 702. The electric control board 760 is electrically connected to the fan assembly 40 and is configured to control the fan assembly 40 by means of electrical signals.

[0223] For example, the electric control board 760 includes electronic components 761 and wiring terminals 762. The wiring terminals 762 are spaced apart from the electronic components 761.

[0224] In some embodiments, as shown in FIG. 34, the box cover 702 includes a first sub- cover 703 and a second sub-cover 720. The electronic components 761 are located between the first sub-cover 703 and the box 701, and the wiring terminals 762 are located between the second sub-cover 720 and the box 701. The second sub-cover 720 is detachably connected to the first sub-cover 703.

[0225] It can be understood that by detachably connecting the second sub-cover 720 to the first sub-cover 703, the controller 700 can be divided into two portions for protecting the electronic components 761 and for connecting to a main power supply, thereby preventing the electronic components 761 from being corroded by water due to direct exposure to air, and facilitating improving the stability and reliability of the controller 700.

[0226] In some embodiments, as shown in FIG. 34, the wiring terminals 762 are located below the electronic components 761, and the second sub-cover 720 is located below the first sub- cover 703.

[0227] It can be understood that the wiring terminals 762 are mainly used for power connection, while the electronic components 761 serve as structural carriers for program operation. A hole connecting the inside and the outside of the controller 700 is formed in the second sub-cover 720. Therefore, by arranging the wiring terminals 762 below the electronic components 761, leakage detection liquid can be prevented from flowing from the second sub- cover 720 above onto the electronic components 761 below, thereby effectively avoiding the risk of failure of the electronic components 761 caused by contact with the leakage detection liquid.

29

[0228] In some embodiments, as shown in FIG. 35, the second sub-cover 720 includes a wire through hole 730. The wire through hole 730 is provided in a bottom wall of the second sub- cover 720 and extends through the bottom wall of the second sub-cover 720. The wire through hole 730 is configured to allow electrical circuit conduits to pass therethrough, so that the electrical circuit conduits can be connected to the wiring terminals 762 inside the second sub- cover 720. It can be understood that by providing the wire through hole 730 in the bottom wall of the second sub-cover 720, a conduit layout space can be saved and a routing path can be shortened. shortened.

[0229] In some embodiments, as shown in FIG. 35, the first sub-cover 703 includes first hanging portions 710, and the second sub-cover 720 includes second hanging portions 740 corresponding to the first hanging portions 710. The first hanging portions 710 are hung on the second hanging portions 740, such 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 in a hanging manner, thereby facilitating improving the assembly and disassembly efficiency of the second sub-cover 720 and the first sub-cover 703.

[0230] For example, the first hanging portions 710 are configured as hooks and integrally formed with the first sub-cover 703. The hooks are bent upward, and the second hanging portions 740 are configured as hanging openings, and the hooks are hung onto the hanging openings.

[0231] In some embodiments, as shown in FIG. 35, the first sub-cover 703 includes a plurality of first hanging portions 710 that are spaced apart from each other. The second sub-cover 720 includes a plurality of second hanging portions 740 corresponding to the multiple first hanging portions 710, and the plurality of second hanging portions 740 are spaced apart from each other. The plurality of first hanging portions 710 are respectively hung in 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 enhancing the connection reliability between the first sub-cover 703 and the second sub-cover 720.

[0232] In some embodiments, the first sub-cover 703 is detachably connected to the housing 10 by means of a plurality of fasteners, and the second sub-cover 720 is detachably connected to the housing 10 by means of a plurality of fasteners. For example, the fasteners may be bolts or the like.

[0233] In some embodiments, as shown in FIG. 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 a corner of the side wall that is close to the first sub-cover 703 and close to the box 701, and protrudes in a direction away from the second sub-cover 720. A gap is formed between the assembly protrusion 750 and the corresponding corner of the first sub-cover 703, so as to facilitate the assembly between the first sub-cover 703 and the second sub-cover 720.

30

[0234] In some embodiments, as shown in FIG. 35, in the height direction of the housing (i.e., the vertical direction), the size of the first sub-cover 703 is greater than the size of the second sub-cover 720. In the length direction of the housing (i.e., the front-rear direction), the size of the first sub-cover 703 is approximately equal to the size of the second sub-cover 720. It can be understood that the area occupied by the electronic component 761 on the box 701 is larger than the area occupied by the wiring terminals 762 on the box 701. Therefore, by setting the size of the first sub-cover 703 greater than the size of the second sub-cover 720, the first sub-cover 703 can protect the electronic component 761.

[0235] In some embodiments, as shown in FIG. 36, FIG. 37, and FIG. 38, the second side plate 37 includes third hanging portions 1000, and the box 701 includes fourth hanging portions 1004. The fourth hanging portions 1004 are in hanging engagement with the third hanging portions 1000, such that the box 701 is fixedly connected to the second side plates 37 by means of fasteners. of fasteners.

[0236] In this way, the controller 700 may 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 the electrical connection between the electric control board 760 and the fan assembly 40.

[0237] In some embodiments, the third hanging portions 1000 are configured as hanging holes and open upward, and the fourth hanging portions 1004 are configured as hooks and extend downward. The hooks are engaged with the hanging holes.

[0238] Accordingly, the hooks can be hooked downward onto side walls of the hanging holes from above, that is, the controller 700 can be hung on the second side plate 37 through cooperation between the hooks and the hanging holes, thereby pre-positioning the connection between the controller 700 and the second side plate 37 to facilitate fixation of the controller 700 and the second side plate 37 by means of fasteners.

[0239] In some embodiments, as shown in FIG. 37 and FIG. 38, the third hanging portions 1000 are provided at a top edge of the second side plate 37, and the fourth hanging portions 1004 are provided at a top edge of the box 701. In this way, structures of the second side plate 37 and the box 701 can be simplified, which facilitates machining of the second side plate 37 and the box 701. Moreover, a lower side of the controller 700 can be prevented from extending downward beyond the housing 10, so that the appearance of the indoor air-conditioning unit 100 is more regular.

[0240] In some embodiments, as shown in FIG. 37 and FIG. 38, the second side plate 37 includes at least two third hanging portions 1000, and the box 701 includes at least two fourth hanging portions 1004, and the at least two third hanging portions 1000 are correspondingly fitted with the at least two fourth hanging portions 1004.

[0241] For example, the at least two third hanging portions 1000 are spaced apart along the

31 top edge of the second side plate 37, and the at least two fourth hanging portions 1004 are spaced apart along the top edge of the box 701, which facilitates improving the stability of pre- positioning between the controller 700 and the second side plate 37.

[0242] In some embodiments, as shown in FIG. 38, the box 701 includes a box body 7011 and two eighth flanges 1005. The two eighth flanges 1005 are provided on both sides of the box body 7011 and extend in directions away from each other. The eighth flanges 1005 are fixedly connected to the second side plates 37 by means of fasteners.

[0243] For example, with reference to FIG. 38, the box 701 further includes a plurality of first bolt holes 1007. A portion of the plurality of first bolt holes 1007 are spaced apart and arranged on one of the eighth flanges 1005, and another portion of the plurality of first bolt holes 1007 are spaced apart and arranged on the other eighth flange 1005. With reference to FIG. 39, the second side plate 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 by means of fasteners.

[0244] Thus, the provision of the eighth flanges 1005 not only facilitates the formation of the plurality of second bolt holes 1002, facilitates processing, but also increases the contact area between the box 701 and the second side plates 37, thereby improving the connection stability between the controller 700 and the second side plates 37.

[0245] In some embodiments, as shown in FIG. 38 and FIG. 40, the box 701 includes a first wire through hole 1006, and the second side plate 37 includes a second wire through hole 1001 corresponding to the first wire through hole 1006. A wire harness passes through the first wire through hole 1006 and the second wire through hole 1001 to connect the electric control board 760 and the fan assembly 40.

[0246] For example, the box 701 includes a plurality of first wire through holes 1006, and the second side plate 37 includes a plurality of second wire through holes 1001. The plurality of first wire through holes 1006 correspond to the plurality of second wire through holes 1001, which facilitates harness routing between the electric control board 760 and the fan assembly 40. 40.

[0247] In some embodiments, the first wire through holes 1006 are provided close to an upper portion of the box, and the second wire through holes 1001 are provided close to an upper portion of the second side plate 37, which helps prevent condensate water from splashing onto the wire harness, thereby improving the stability and reliability of the controller 700.

[0248] In some embodiments, as shown in FIG. 39, the second side plate 37 includes a through hole 1003.

[0249] In some embodiments, as shown in FIG. 38 and FIG. 39, the controller 700 further includes a heat sink 1008. The heat sink 1008 is disposed on one side of the box 701 facing the heat exchanger 50. The heat sink 1008 is thermally connected to the electric control board 760 and configured to dissipate heat generated during operation of the electric control board 760 to the outside of the controller 700. The second side plate 37 includes the through hole 1003. A portion of the heat sink 1008 extends through the through hole 1003 into the housing 10 to exchange heat with the air around the heat exchanger 50. Thus, the heat dissipation efficiency of the heat sink 1008 can be improved, preventing the temperature of the electric control board 760 from becoming excessively high.

[0250] In some embodiments, as shown in FIG. 38, the heat sink 1008 includes a substrate 10081 and heat sink fins 10082. The heat sink fins 10082 are disposed on one side of the substrate 10081 facing the heat exchanger 50. The substrate 10081 is embedded on one side of the box 701 facing the heat exchanger 50, and the heat sink fins 10082 extend through the through hole 1003 into the housing 10.

[0251] For example, the heat sink 1008 includes a plurality of heat sink fins 10082, which can be arranged in the left-right direction of the housing 10. The plurality of heat sink fins 10082 are spaced apart in a thickness direction thereof, which can increase the heat dissipation area of the heat sink 1008 and improve its heat dissipation efficiency of the heat sink 1008.

[0252] In some embodiments, as shown in FIG. 40, the controller 700 further includes a reactor 1009, which is disposed inside the box 701 and located above the electric control board 760. The reactor 1009 is configured to prevent large fluctuations in current flowing through the electric control board 760, thereby improving the stability of circuits on the electric control board 760 and enhancing the reliability of the controller 700.

[0253] Those skilled in the art will understand that the disclosed scope of the present application is not limited to the specific embodiments described above, and 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 only by the appended claims.

33

Claims

CLAIMS CLAIMS

1. An indoor air-conditioning unit, comprising: a housing, comprising: an air inlet housing; and an air outlet housing connected to the air inlet housing, wherein one side of the air outlet housing away from the air inlet housing is open to form a first air outlet, and one side of the air inlet housing away from the air outlet housing is open to form a first air inlet; a fan assembly disposed in the air inlet housing and located close to the first air inlet; and a heat exchanger disposed in the air outlet housing and located close to the first air outlet, wherein in an arrangement direction of the air inlet housing and the air outlet housing, the heat exchanger is spaced apart from the fan assembly, wherein the fan assembly is configured to draw air from outside the housing into the housing via the first air inlet, and to blow the air drawn in toward the heat exchanger, so that the air exchanges heat with the heat exchanger and is discharged to the outside of the housing through the first air outlet, wherein 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, so that the air inlet housing is fixedly connected to the air outlet housing.

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

3. The indoor air-conditioning unit according to claim 2, wherein the one portion of the plurality of first mounting portions is provided at intervals on the one of the two first flanges along a height direction of the housing, and the other portion of the plurality of first mounting portions is provided at intervals on the other of the two first flanges along the height direction of the housing.

34

4. The indoor air-conditioning unit according to any one of claims 1 to 3, wherein the fan assembly comprises: air duct members located on one side of the heat exchanger close to the first air inlet; a motor spaced apart from the air duct members in a width direction of the housing; fans disposed within the corresponding air duct members and drivingly connected to the motor, wherein the motor is configured to drive the fans to rotate; a motor bracket on which the motor is mounted and to which the motor is fixedly connected; and a mounting plate on which the air duct members and the motor bracket are mounted, wherein the mounting plate is disposed on a side wall of the air outlet housing close to the air inlet housing and connected to the air outlet housing.

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

6. The indoor air-conditioning unit according to claim 4 or 5, wherein the mounting plate comprises hooks, and the air outlet housing comprises hanging holes, wherein the hooks are disposed in the corresponding hanging holes to guide assembly of the mounting plate and the air outlet housing.

7. The indoor air-conditioning unit according to any one of claims 4 to 6, wherein each of the air duct members further comprises: a first volute; a second volute, wherein the first volute is connected to the second volute and disposed above the second volute, wherein the first volute and the second volute jointly define a second air inlet and a second air outlet, wherein the fan is configured to draw air from the second air inlet and discharge air from the second air outlet; and at least one air deflector disposed on at least one of the first volute and the second volute and located close to the second air outlet, and the at least one air deflector is configured to guide air at the second air outlet.

8. The indoor air-conditioning unit according to claim 7, wherein the at least one air deflector comprises at least two air deflectors, and the at least two air

35 deflectors are spaced apart from each other in the width direction of the housing on at least one of the of the first first volute andthe volute and thesecond second volute. volute.

9. The indoor air-conditioning unit according to any one of claims 1 to 8, wherein the air inlet housing further comprises: a first base comprising: a first bottom plate; and two first side plates, which are respectively connected to opposite ends of the first bottom plate in a width direction of the housing; a first back plate disposed on one side of the first bottom plate and the first side plates away from the air outlet housing and detachably connected to the first bottom plate and the first side plates, and the first air inlet is provided in the first back plate and extends through the first back plate in a thickness direction of the first back plate; and a first top plate disposed on tops of the first side plates and detachably connected to the first side plates.

10. The indoor air-conditioning unit according to claim 9, wherein the air outlet housing comprises: a second base comprising: a second bottom plate; and a second back plate connected to one end of the second bottom plate close to the air inlet housing, wherein the second mounting portions are provided on the second back plate; two second side plates respectively disposed on two sides of the second bottom plate in the width direction of the housing and detachably connected to the second bottom plate, wherein the two second side plates are respectively disposed on two sides of the second back plate in the width direction of the housing and detachably connected to the second back plate; and a second top plate disposed on tops of the two second side plates and detachably connected to the two second side plates.

11. The indoor air-conditioning unit according to claim 10, wherein the second base further comprises a flange portion, which is connected to one end of the second bottom plate away from the second back plate, wherein the flange portion extends in the width direction of the housing and is bent upward, wherein an upper edge of the flange portion forms a lower end of the first air outlet and is configured to restrict an airflow direction of the first air outlet and to block condensate water generated by the heat exchanger from flowing out of the housing through the first air outlet.

12. The indoor air-conditioning unit according to claim 10 or 11, wherein at least one of the first base and the second base is configured as an integral member made of a metal material.

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

14. The indoor air-conditioning unit according to any one of claims 10 to 13, further comprising a controller, which comprises: a box disposed at one side of the air outlet housing in the width direction of the housing; a box cover disposed on the box; and an electric control board disposed inside the box, located in an accommodating space defined by the box and the box cover, and electrically connected to the fan assembly, wherein the electric control board comprises electronic components and wiring terminals, and the wiring terminals are spaced apart from the electronic components.

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

16. The indoor air-conditioning unit according to claim 15, wherein the box comprises first wire through holes, wherein the second side plate comprises second wire through holes corresponding to the first wire through holes, wherein a wiring harness passes through the first wire through holes and the second wire through holes to connect the electric control board and the fan assembly.

17. The indoor air-conditioning unit according to any one of claims 1 to 16, further comprising a drain pan, wherein the drain pan is disposed in the air outlet housing and located below the heat exchanger, wherein the drain pan is configured to collect condensate water generated by the heat exchanger to prevent the condensate water from flowing to an outside of the housing; and the drain pan comprises: a drain pan body, on which the heat exchanger is disposed; and

37 a first baffle rib disposed on the drain pan body and extending in a length direction of the drain pan body, wherein the first baffle rib is located on one side of the heat exchanger close to the fan assembly.

18. The indoor air-conditioning unit according to claim 17, wherein the drain pan further comprises a first flow baffle portion, which is provided on the drain pan body and extending in a length direction of the drain pan body, wherein the first flow baffle portion is located on one side of the first baffle rib close to the first air outlet and spaced apart from the first baffle rib, and wherein a surface of the first flow baffle portion facing the heat exchanger is substantially parallel to a surface of the heat exchanger facing the first flow baffle portion.

19. The indoor air-conditioning unit according to claim 18, wherein the drain pan further comprises: two second baffle ribs disposed on the drain pan body and extending in a width direction of the drain pan body, wherein the two second baffle ribs are located on two sides of the first baffle rib in the length direction of the drain pan body and are spaced apart from the first baffle rib so as to form a drainage channel; and a drainage port, which is provided on one side of the drain pan body, wherein one end of the drainage port is in communication with the drainage channel, and the other end of the drainage port is in communication with the outside of the indoor air-conditioning unit.

20. The indoor air-conditioning unit according to any one of claims 17 to 19, further comprising two second support plates, wherein the two second support plates are respectively disposed at two ends of the heat exchanger and fixedly connected to the heat exchanger, and wherein the second support plates are fixed on the drain pan body.

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