Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit, which comprises a shell, a total heat exchange core body, a heat exchanger and two groups of fan components, an assembling unit is arranged on a top plate of the shell corresponding to each fan component, the assembling unit comprises a first connecting part and a second connecting part, and plugging ports in the same direction are formed on the first connecting part and the second connecting part. A first inserting part and a second inserting part are arranged on the mounting bracket; the first plugging part is plugged to the first connecting part from the corresponding plugging port, and the second plugging part is connected to the second connecting part from the corresponding plugging port. The connection mode of the fan assembly is beneficial for improving the assembly and disassembly efficiency, the use number of fasteners such as screws can be effectively reduced in the actual assembly process, the assembly and disassembly efficiency is improved, and then the assembly and disassembly difficulty is reduced so as to improve the maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of air handling equipment, and more particularly to an indoor air conditioning unit. Background Technology

[0002] Air conditioners are common household appliances. As users' demands for air quality increase, air conditioners equipped with fresh air functions are gradually becoming more widely used. Air conditioners with fresh air functions usually have an additional total heat exchange core, which facilitates heat exchange between indoor and outdoor air.

[0003] In conventional technology, exhaust and intake fans are typically fixed to the housing using screws during assembly. This requires screwing each screw individually during factory assembly; similarly, during later maintenance and replacement, the screws must be removed one by one. Because the screw fixing requires considerable operating space, large sections of the housing base plate need to be disassembled to accommodate the exhaust and intake fans, increasing the difficulty and labor intensity of disassembly and assembly. Utility Model Content

[0004] In response to the problems pointed out in the background art, this utility model provides an air conditioner indoor unit that solves the problems of high difficulty and low efficiency in disassembling the exhaust fan and intake fan in the air conditioner indoor unit during later maintenance and repair.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] In some embodiments of this application, an indoor air conditioning unit is provided, comprising:

[0007] The outer shell contains a fresh air duct and an exhaust air duct.

[0008] A total heat exchange core is disposed in the outer casing and is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct and the airflow flowing through the exhaust duct.

[0009] A heat exchanger configured to exchange heat with the airflow flowing through the fresh air duct;

[0010] Two sets of fan assemblies, each fan assembly including a mounting bracket and a fan, the fan being mounted on the mounting bracket; one fan assembly is disposed in the fresh air duct, and the other fan assembly is disposed in the exhaust air duct;

[0011] Corresponding to each of the fan assemblies, the top plate of the housing is provided with an assembly unit, the assembly unit including a first connecting part and a second connecting part, the first connecting part and the second connecting part having a plug-in interface with the same direction, the mounting bracket being provided with a first plug-in part and a second plug-in part; the first plug-in part is plugged into the first connecting part from the corresponding plug-in interface, and the second plug-in part is plugged into the second connecting part from the corresponding plug-in interface.

[0012] Corresponding to each fan assembly, the first connecting part and the second connecting part in the assembly unit are respectively used to support the first plug-in part and the second plug-in part on the mounting bracket. When the fan assembly is assembled or disassembled, the first plug-in part and the second plug-in part are simultaneously connected to the first connecting part and the second connecting part at the corresponding positions, or simultaneously removed from the first connecting part and the second connecting part. In the actual assembly process, the number of fasteners such as screws can be effectively reduced, the assembly and disassembly efficiency can be improved, and the assembly and disassembly difficulty can be reduced to improve the convenience of maintenance.

[0013] In some embodiments of this application, the housing includes a first end face and a second end face. An outdoor air outlet and an outdoor air inlet are formed on the first end face, and an indoor return air inlet and an indoor air outlet are formed on the second end face. The fresh air duct is used to connect the outdoor air inlet and the indoor air outlet, and the exhaust duct is used to connect the indoor return air inlet and the outdoor air outlet.

[0014] The two fan assemblies are arranged side by side on one side of the housing along the length from the first end face to the second end face;

[0015] A first partition is provided between the two fan assemblies, the first partition being disposed between the side wall of the housing and the total heat exchange core.

[0016] By arranging the two fan assemblies on the same side of the housing and separating them with a first partition, the internal component layout of the housing is made more compact, achieving a compact structural design. At the same time, the first partition separates the two fan assemblies, thereby isolating the fresh air duct and the exhaust air duct, ensuring good heat exchange between the air entering and exiting the housing and that the air paths do not interfere with each other.

[0017] In some embodiments of this application, the connection ports of the first connecting portion and the second connecting portion both face the first partition member. The first connecting portion includes a connecting vertical portion and a connecting horizontal portion. There are two connecting vertical portions, both of which are perpendicular to the top plate. The connecting horizontal portion is parallel to the top plate and forms a first insertion gap with the top plate. The first insertion portion is inserted into the first insertion gap.

[0018] During installation, both fan assemblies are moved from the side closest to the first partition to the side away from the first partition to be inserted into the first and second connecting parts. During disassembly, they are also moved out along the direction towards the first partition to the first and second connecting parts, resulting in higher installation and disassembly efficiency.

[0019] Both the vertical connecting portion and the horizontal connecting portion have guide portions formed at their ends that are opposite to the direction of the first insertion gap. The guide portions are used to guide the first insertion portion into the first insertion gap.

[0020] The guide part is used to improve the accuracy of the first connecting part when it is inserted into the first insertion gap. Under the guidance of the guide part, the first connecting part can be positioned into the first insertion gap more conveniently and quickly.

[0021] The second connecting part is fixed on the top plate. The second connecting part includes a fixed base plate, a connecting base plate, and a limiting upright plate. The fixed base plate is fixed on the top plate. A second insertion gap is formed between the connecting base plate and the top plate. The limiting upright plate is formed at one end of the connecting base plate away from the fixed base plate. The second insertion part is inserted into the second insertion gap.

[0022] The second insertion part includes an insertion vertical part and an insertion horizontal part. The insertion vertical part is perpendicular to the insertion horizontal part, the insertion horizontal part extends into the second insertion gap, and the insertion vertical part abuts against the limiting vertical plate.

[0023] The limiting plate is used to limit the insertion depth of the second connector, thereby limiting the installation position of the entire fan assembly within the housing, and preventing problems such as deformation of the second or first connector caused by excessive installation of the fan assembly.

[0024] The top plate is also provided with a fixing part, and the mounting bracket is provided with a corresponding fixing receiving part, which is detachably connected to the fixing part.

[0025] After the fan assembly is inserted into place, the connecting holes on the fixing part and the fixing receiving part are aligned. A small number of fasteners are used to further secure the fan assembly and the fixing receiving part, limiting the position of the fan assembly and improving the stability of its connection.

[0026] The first partition is detachably connected to a mounting plate. The mounting plate has a hanging part on the side that contacts the top plate, and a snap-fit ​​part is provided at the corresponding position of the top plate. A snap-fit ​​groove is formed between the snap-fit ​​part and the top plate, and the hanging part is connected in the snap-fit ​​groove.

[0027] The first partition is pre-fixed to the mounting plate. During the installation process, the mounting plate moves along the slot through the hook part to contact the side wall of the outer shell, which helps to improve the smoothness of the installation of the first partition and can also play an auxiliary support role.

[0028] The side wall of the housing is also provided with a positioning recess, and the end of the mounting plate that contacts the side wall of the housing is provided with a positioning part, which is connected to the positioning recess.

[0029] The positioning part is a bent part formed at one end of the mounting plate, and its width is adapted to the width of the positioning recess. The positioning part is inserted into the positioning recess, so that the gap between the first partition and the side wall of the outer shell is smaller, thus improving the sealing effect.

[0030] In some embodiments of this application, a maintenance port is provided on the bottom plate of the housing, and a maintenance cover is provided on the maintenance port. One end of the maintenance cover is hinged to the bottom plate of the housing, and the other end is detachably connected to the housing by fasteners.

[0031] When repairing the fan assembly, open the service cover, remove the fan assembly from the service port, and after inspection and maintenance, reinstall it into the housing from the service port position.

[0032] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a diagram of the external structure of the indoor unit of the air conditioner in this application;

[0035] Figure 2 This is a diagram of the internal structure of the indoor unit of the air conditioner in this application;

[0036] Figure 3 This is a diagram showing the locations of the first and second connecting parts of the indoor unit of the air conditioner in this application;

[0037] Figure 4 This is a cross-sectional diagram of the indoor unit of an air conditioner.

[0038] Figure 5 This is a structural diagram of the first connecting part;

[0039] Figure 6 This is a structural diagram of the fan assembly;

[0040] Figure 7 This is a schematic diagram showing the installation of the fan assembly inside the housing.

[0041] Figure 8 This is a structural diagram of the second connecting part;

[0042] Figure 9 Layout view of the mounting plate and the first partition plate;

[0043] Figure 10 This is a diagram showing the installation of the fan assembly and the first spacer within the housing.

[0044] Figure 11 This is a schematic diagram of the disassembly of the first spacer;

[0045] Figure 12 This is a diagram illustrating the disassembly of the fan assembly;

[0046] Figure 13 This is a schematic diagram of the insulation frame structure;

[0047] Figure 14 This is a schematic diagram of the threading plate.

[0048] Figure label:

[0049] 1. Outer shell; 111. Top plate; 112. Bottom plate; 113. Maintenance cover; 114. Fasteners;

[0050] 11. Indoor air outlet; 12. Indoor return air outlet; 13. Outdoor air outlet; 14. Outdoor air inlet;

[0051] 15. First partition; 151. Mounting plate; 152. Hanging part; 153. Positioning part;

[0052] 16. Second partition plate; 161. Air damper;

[0053] 17. Cable tray; 171. First wiring section; 172. Second wiring section;

[0054] 18. First filter screen; 19. Second filter screen;

[0055] 110. Connecting part;

[0056] 120. First connecting part; 121. Connecting vertical part; 122. Connecting horizontal part;

[0057] 130. Second connecting part; 131. Fixed base plate; 132. Connecting base plate; 133. Limiting upright plate;

[0058] 140. Fixing part;

[0059] 2. Total heat exchange core;

[0060] 3. Fan assembly;

[0061] 31. Mounting bracket; 311. Ventilation notch; 312. Clearance notch; 313. First insertion part; 314. Fixed receiving part; 315. Second insertion part; 3151. Horizontal insertion part; 3152. Vertical insertion part;

[0062] 32. Fan;

[0063] 4. Electrical control box;

[0064] 5. Heat exchanger; 51. First mounting plate; 52. Second mounting plate; 53. Drain pump;

[0065] 6. Insulation frame; 61. First connection port; 62. Second connection port; 63. Third connection port; 64. Fourth connection port; 65. Partition plate; 651. Ventilation opening; 66. Positioning recess; 67. First mounting part; 68. Second mounting part; 69. Cable tray. Detailed Implementation

[0066] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0068] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0071] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0072] Figures 1-3 One embodiment of this application provides an indoor air conditioning unit, including a housing 1. The housing 1 includes a top plate 111, a bottom plate 112, and a peripheral side plate disposed between the top plate 111 and the bottom plate 112.

[0073] The side panel includes a first end face and a second end face. An outdoor air outlet 13 and an outdoor air inlet 14 are formed on the first end face, and an indoor return air inlet 12 and an indoor air outlet 11 are formed on the second end face to meet the requirements of indoor and outdoor air flow.

[0074] The outer casing 1 is provided with an indoor air outlet 11, an indoor return air outlet 12, an outdoor air outlet 13, and an outdoor air inlet 14. A fresh air channel is formed between the outdoor air inlet 14 and the indoor air outlet 11, and an exhaust air channel is formed between the indoor return air outlet 12 and the outdoor air outlet 13.

[0075] The indoor unit of the air conditioner includes a total heat exchange core 2, a heat exchanger 5, and a fan assembly 3 installed in the outer casing 1. There are two fan assemblies 3, namely an intake fan installed in the intake air duct and an exhaust fan installed in the exhaust air duct.

[0076] The total heat exchange core 2 is configured to perform heat exchange between the airflow flowing through the fresh air duct and the airflow flowing through the exhaust air duct.

[0077] Specifically, the total heat exchange core 2 is provided with an exhaust heat exchange channel and a fresh air heat exchange channel, and the exhaust heat exchange channel and the fresh air heat exchange channel conduct heat to each other; an exhaust channel is formed in the outer shell 1 between the indoor return air inlet 12, the exhaust heat exchange channel and the outdoor air outlet 13, and a fresh air channel is formed in the outer shell 1 between the outdoor air inlet 14, the fresh air heat exchange channel and the indoor air outlet 11.

[0078] Heat exchanger 5 is configured to perform heat exchange on the airflow passing through the fresh air duct.

[0079] Specifically, the heat exchanger 5 can perform heat exchange treatment on the airflow flowing through the fresh air duct, and the heat-treated airflow will be output to the room through the indoor air outlet 11.

[0080] Reference 4- Figure 8 The fan assembly 3 includes a mounting bracket 31 and a fan 32, with the fan 32 mounted on the mounting bracket 31.

[0081] Specifically, two fan assemblies 3 are used to meet the driving requirements of indoor and outdoor air flow. One fan assembly 3 is set in the fresh air duct so that fresh outdoor air enters the housing 1 and is output from the indoor air outlet 11 after being heat-exchanged by the total heat exchange core 2.

[0082] Another fan assembly 3 is installed in the exhaust duct to allow indoor polluted air to enter the housing 1 and be heat-exchanged by the total heat exchange core 2 before being output from the outdoor air outlet 13.

[0083] In one embodiment of this application, in order to improve the ease of installation and removal of the fan assembly 3 within the housing 1, the installation method of the fan assembly 3 is structurally improved as follows.

[0084] Among them, corresponding to each fan assembly 3, an assembly unit is provided on the inner side of the top plate 111 of the housing 1. The assembly unit includes a first connecting part 120 and a second connecting part 130. The first connecting part 120 and the second connecting part 130 have plug interfaces with the same direction. In other words, the plug interfaces of the first connecting part 120 and the second connecting part 130 face the same side.

[0085] For details, please refer to the following: Figure 6The mounting bracket 31 is provided with a first plug-in portion 313 and a second plug-in portion 315; the first plug-in portion 313 is plugged into the first connecting portion 120 from the corresponding plug-in interface, and the second plug-in portion 315 is connected to the second connecting portion 130 from the corresponding plug-in interface.

[0086] When the fan assembly 3 is assembled or disassembled, the first plug-in part 313 and the second plug-in part 315 are simultaneously connected to the first connecting part 120 and the second connecting part 130 at the corresponding positions, or simultaneously removed from the first connecting part 120 and the second connecting part 130. In the actual assembly process, the number of fasteners such as screws can be effectively reduced, the assembly and disassembly efficiency can be improved, and the assembly and disassembly difficulty can be reduced to improve the convenience of maintenance.

[0087] In some embodiments of this application, two fan assemblies 3 are arranged side by side on one side of the housing 1 along the length direction from the first end face to the second end face inside the housing 1.

[0088] For ease of understanding, the direction from the first end face to the second end face is defined as the length direction of the outer shell 1, and the direction perpendicular to the length direction of the outer shell 1 in the plane parallel to the top plate 111 is defined as the width direction of the outer shell 1.

[0089] In other words, the two fan assemblies 3 are arranged along the length of the housing 1.

[0090] refer to Figure 9 , Figure 10 A first partition 15 is provided between the two fan assemblies 3. The first partition 15 is located between the side wall of the housing 1 and the total heat exchange core 2.

[0091] By arranging the two fan assemblies 3 on the same side of the housing 1 and separating them by the first partition 15, the internal device layout of the housing 1 is made more compact, thereby achieving a compact structural design.

[0092] Meanwhile, the first partition 15 separates the two fan assemblies 3, thereby achieving mutual isolation between the fresh air channel and the exhaust air channel, ensuring good heat exchange between the air entering and exiting the casing 1 and ensuring that the air paths do not affect each other.

[0093] In some embodiments of this application, the connection ports of the first connecting part 120 and the second connecting part 130 are both facing the first partition 15. When the two fan assemblies 3 are installed, they are both moved from the side close to the first partition 15 to the side away from the first partition 15 to be inserted into the first connecting part 120 and the second connecting part 130. When disassembling, they are also moved out along the direction towards the first partition 15 to the first connecting part 120 and the second connecting part 130, which makes the assembly and disassembly more efficient.

[0094] refer to Figure 4 , Figure 5Specifically, in some embodiments of this application, the first connecting part 120 includes a connecting vertical part 121 and a connecting horizontal part 122. The number of connecting vertical parts 121 is two and they are perpendicular to the top plate 111. The two connecting vertical parts 121 are spaced apart along the width direction of the outer shell 1. The first plug-in part 313 is located between the two connecting vertical parts 121.

[0095] The connecting horizontal part 122 is parallel to the top plate 111 and forms a first insertion gap with the top plate 111. The first insertion part 313 is inserted into the first insertion gap.

[0096] Refer again Figure 2 , Figure 3 In one embodiment, a partition plate 65 is also provided in the outer casing 1, and a vent 651 is provided on the partition plate 65. The partition plate 65 is inside the outer casing 1 and located inside the indoor air outlet 11.

[0097] The partition plate 65 separates the indoor air outlet 11 and the indoor return air outlet 12. The indoor air outlet 11 is connected to the outlet of the corresponding fan 32 through the vent 651. The heat exchanger 5 is located between the vent 651 and the indoor air outlet 11.

[0098] Specifically, the partition plate 65 provided in the outer casing 1 can form a space for installing the heat exchanger 5 around the outdoor air outlet 13, so as to facilitate the installation of the heat exchanger 5 at the indoor air outlet 11 and ensure that the airflow flowing from the fresh air duct can effectively exchange heat with the heat exchanger 5.

[0099] By setting a partition plate 65 in the outer casing 1 to separate the indoor air outlet 11 and the indoor air return outlet 12, the partition plate 65 covers the area of ​​the indoor air outlet 11 to form a space for installing the heat exchanger 5, so that the airflow generated by the corresponding fan 32 is blown to the heat exchanger 5 through the vent 651 for heat exchange and then output from the indoor air outlet 11, ensuring that the airflow output from the indoor air outlet 11 receives sufficient heat exchange, thereby improving the heat exchange efficiency.

[0100] To facilitate the installation and positioning of the first connecting part 120, the first connecting parts 120 corresponding to the two sets of fan assemblies 3 are respectively located on the inner side of the first end face and on the side of the partition plate 65 away from the indoor air outlet 11.

[0101] The first connecting part 120 is specifically a sheet metal integral forming structure, which also includes a transition plate that is connected and fixed to the first end face and the partition plate 65. The connecting vertical part 121 and the connecting horizontal part 122 are respectively disposed on the transition plate, and the connecting vertical part 121 and the connecting horizontal part 122 are perpendicular to each other.

[0102] Both the vertical connecting portion 121 and the horizontal connecting portion 122 have guide portions that are opposite to the direction of the first insertion gap. The guide portions are used to guide the first insertion portion 313 into the first insertion gap.

[0103] The guide part is used to improve the accuracy of the first connecting part 120 when it is inserted into the first insertion gap. Under the guidance of the guide part, the first connecting part 120 can be positioned into the first insertion gap more conveniently and quickly.

[0104] For details, please refer to the following: Figure 8 The second connecting part 130 is fixed on the top plate 111 and includes a fixed base plate 131, a connecting base plate 132 and a limiting upright plate 133. The fixed base plate 131 is fixed on the top plate 111, and a second insertion gap is formed between the connecting base plate 132 and the top plate 111. The limiting upright plate 133 is formed at the end of the connecting base plate 132 away from the fixed base plate 131. The second insertion part 315 is inserted into the second insertion gap.

[0105] The second insertion part 315 includes an insertion vertical part 3152 and an insertion horizontal part 3151. The insertion vertical part 3152 is perpendicular to the insertion horizontal part 3151. The insertion horizontal part 3151 extends into the second insertion gap. The insertion vertical part 3152 abuts against the limiting vertical plate 133.

[0106] The limiting plate 133 is used to limit the insertion depth of the second insertion part 315, thereby limiting the installation position of the entire fan assembly 3 in the housing 1, and avoiding problems such as deformation of the second connection part 130 or the first connection part 120 caused by excessive installation of the fan assembly 3.

[0107] The top plate 111 is also provided with a fixing part 140, and the mounting bracket 31 is provided with a corresponding fixing support part 314, which is detachably connected to the fixing part 140.

[0108] After the fan assembly 3 is inserted into place, the fixing part 140 and the connecting hole on the fixing receiving part 314 coincide. A small number of fasteners 114 are used to further fix the fan assembly 3 and the fixing receiving part 314, thereby limiting the fan assembly 3 and improving the stability of its connection.

[0109] refer to Figure 9 To facilitate the positioning of the first partition 15, a mounting plate 151 is detachably connected to the first partition 15. The mounting plate 151 is located on the first partition 15. A hooking part 152 is provided on the side of the mounting plate 151 that contacts the top plate 111. The hooking part 152 is a bent structure formed above the mounting plate 151. A snap-fit ​​part 110 is provided at the corresponding position of the top plate 111. A slot is formed between the snap-fit ​​part 110 and the top plate 111, and the hooking part 152 is connected in the slot.

[0110] The first partition 15 is pre-fixed to the mounting plate 151. During the installation process, the mounting plate 151 moves along the slot through the hook part 152 to contact the side wall of the outer shell 1, which helps to improve the smoothness of the installation of the first partition 15 and can also play an auxiliary support role.

[0111] In order to improve the accuracy of the connection between the front end of the mounting plate 151 and the slot, a guide slope that is inclined downward away from the top plate 111 is provided at the end of the latching part 110 that is in contact with the hanging part 152. Under the action of the guide slope, the hanging part 152 moves into the slot and moves forward along the slot to connect with the side wall of the outer casing 1.

[0112] Combination Figure 4 The side wall of the outer casing 1 is also provided with a positioning recess 66, and the end of the mounting plate 151 that contacts the side wall of the outer casing 1 is provided with a positioning part 153, which is connected to the positioning recess 66.

[0113] The positioning part 153 is a bent part formed at one end of the mounting plate 151. Its width is adapted to the width of the positioning recess 66. The positioning part 153 is inserted into the positioning recess 66, so that the gap between the first partition 15 and the side wall of the outer shell 1 is smaller, thereby improving the sealing effect.

[0114] Combination Figure 1 In some embodiments of this application, a maintenance port is also provided on the bottom plate 112 of the outer casing 1, and a maintenance cover plate 113 is provided on the maintenance port. One end of the maintenance cover plate 113 is hinged to the bottom plate 112 of the outer casing 1, and the other end is detachably connected to the outer casing 1 by a fastener 114.

[0115] When repairing fan assembly 3, open the maintenance cover 113, remove fan assembly 3 from the maintenance port, and after inspection and maintenance, reinstall it into the housing 1 from the maintenance port position.

[0116] The maintenance port is located directly below the total heat exchange core 2, combined with... Figure 11 , Figure 12 When disassembling the fan assembly 3, first open the maintenance cover 113, then remove the total heat exchange core from the maintenance port, move the first partition 15 and the mounting plate 151 along the width direction of the outer casing 1 toward the maintenance port, and then remove them from the maintenance port.

[0117] After the first partition 15 is removed, the fan assembly 3 is disassembled from the fixing part 140, and then moved along the length of the outer shell 1 towards the first partition 15. After being moved from the first connecting part 120 and the second connecting part 130, it is moved towards the maintenance port to disassemble the fan assembly 3.

[0118] During installation, first move the fan assembly 3 from the service port into the housing 1, then insert the first plug-in part 313 into the first plug-in gap on the first connecting part 120 along the length of the housing 1, and insert the second plug-in part 315 into the second plug-in gap on the second connecting part 130. Finally, fix the fixing part 140 and the fixing receiving part 314 with fasteners.

[0119] After the two fan assemblies 3 are installed, the first partition 15 and the mounting plate 151 can be assembled.

[0120] The first partition 15 is disposed between the side wall of the outer casing 1 and the total heat exchange core 2.

[0121] Specifically, the two fan assemblies 3 are arranged on the same side of the housing 1, which facilitates rapid assembly of the two fan assemblies 3 in the same direction during the assembly process. Furthermore, the two fan assemblies 3 are separated by a first partition 15 so that the two fan assemblies 3 do not interfere with each other during operation.

[0122] By arranging the two fan assemblies 3 on the same side of the housing 1 and separating them by the first partition 15, the internal component layout of the housing 1 is made more compact, thus achieving a compact structural design. At the same time, the first partition 15 separates the two fan assemblies 3, thereby achieving mutual isolation between the fresh air channel and the exhaust air channel, ensuring good heat exchange between the incoming and outgoing air inside and outside the housing 1 and that the air paths do not interfere with each other.

[0123] In one embodiment, two fan assemblies 3 are arranged side by side between the indoor air outlet 11 and the outdoor air outlet 13;

[0124] One of the fans 32 has its outlet connected to the outdoor air outlet 13, and the outlet of the other fan 32 has its outlet connected to the indoor air outlet 11.

[0125] Specifically, two fan assemblies 3 are arranged on the same side of the housing 1 and located between the indoor air outlet 11 and the outdoor air outlet 13; thus, the fan assembly 3 adjacent to the indoor air outlet 11 is used to drive airflow in the fresh air duct, and the fan assembly 3 adjacent to the outdoor air outlet 13 is used to drive airflow in the exhaust air duct.

[0126] By arranging the fan assembly 3 between the indoor air outlet 11 and the outdoor air outlet 13, the air output to the outside can be efficiently discharged to the outside through the outdoor air outlet 13 under the action of the corresponding fan 32. Similarly, the air output to the inside can be efficiently transported to the inside under the action of the corresponding fan 32, thereby increasing the indoor air volume, reducing the air resistance of the fan 32, and improving the air supply efficiency.

[0127] In one embodiment, the heat exchanger 5 is disposed between the indoor air outlet 11 and the corresponding outlet of the fan 32.

[0128] Specifically, the heat exchanger 5 is installed between the indoor air outlet 11 and the corresponding fan 32, so that the airflow output by the fan 32 blows directly onto the heat exchanger 5.

[0129] By placing the heat exchanger 5 between the indoor air outlet 11 and the outlet of the fan 32, the airflow output from the outlet of the fan 32 blows directly onto the heat exchanger 5, thereby improving the heat exchange efficiency between the airflow and the heat exchanger 5, and thus improving the heat exchange efficiency of the indoor unit of the air conditioner.

[0130] In one embodiment, a second partition 16 is further provided in the outer casing 1; the second partition 16 is disposed between the partition plate 65 and the total heat exchange core 2.

[0131] The second partition 16 isolates the exhaust heat exchange channel and the fresh air heat exchange channel of the total heat exchange core 2 from each other on the adjacent indoor side, so as to meet the installation requirements of the total heat exchange core 2.

[0132] Among the four corners of the total heat exchange core 2, the corner facing the indoor side is separated by the second partition 16, and the corner facing the fan assembly 3 side is separated by the first partition 15. The other two corners of the total heat exchange core 2 can be connected to the corresponding side wall of the outer shell 1 using conventional installation methods to ultimately achieve mutual isolation between the exhaust duct and the fresh air duct.

[0133] In one embodiment of this application, in order to improve the air delivery efficiency of the fan 32, the indoor unit of the air conditioner is structurally improved as follows.

[0134] The mounting bracket 31 is spaced from the top plate 111 of the outer casing 1. The fan 32 is equipped with a centrifugal fan. The mounting bracket 31 is also provided with a ventilation opening 311, which is configured to allow airflow to flow between the top and bottom of the mounting bracket 31.

[0135] Specifically, for the fan assembly 3, the fan 32 can be a centrifugal fan and is fixedly mounted on the top of the housing 1 by the mounting bracket 31. There is a gap between the mounting bracket 31 and the top plate 111 of the housing 1, so that during the operation of the fan 32, the airflow entering and exiting the total heat exchange core 2 will flow to the upper and lower surfaces of the mounting bracket 31 respectively.

[0136] A ventilation notch 311 is provided on the mounting bracket 31. The ventilation notch 311 connects the upper and lower spaces of the mounting bracket 31. During the operation of the centrifugal fan, when there is a large difference in the air intake volume between the two inlets of the centrifugal fan, the air in the upper and lower layers of the mounting bracket 31 can flow back and forth to automatically balance the air intake volume of the two inlets of the centrifugal fan.

[0137] By providing ventilation gaps 311 on the mounting bracket 31, the upper and lower sides of the mounting bracket 31 can be connected to each other through the ventilation gaps 311. In this way, during the operation of the fan 32, the airflow distribution on both sides of the mounting bracket 31 can be balanced, so that the air intake on both sides of the fan 32 is more uniform, thereby improving the air delivery efficiency of the fan 32.

[0138] In one embodiment, the ventilation opening 311 is located on the outside of the fan 32 and away from the total heat exchange core 2.

[0139] Specifically, the ventilation opening 311 is arranged near the side wall of the outer casing 1, and in order to meet the requirements of the mounting bracket 31 to support the installation of the fan 32, the ventilation opening 311 is also arranged on the outside of the fan 32.

[0140] Since the ventilation opening 311 is close to the side wall of the housing 1 and far away from the total heat exchange core 2, it can reduce the area of ​​poor ventilation that the airflow creates near the side wall of the housing 1.

[0141] By providing a ventilation gap 311 at the location of the mounting bracket 31 outside the fan 32, a large space is provided between the ventilation gap 311 and the side wall of the outer casing 1 to meet the vertical ventilation requirements of the mounting bracket 31. At the same time, the ventilation gap 311 is far away from the total heat exchange core 2, which can ensure that sufficient negative pressure is formed at the total heat exchange core 2 to accelerate the flow speed of air in the total heat exchange core 2.

[0142] In one embodiment, the mounting bracket 31 is provided with an avoidance notch 312, which is arranged adjacent to the total heat exchange core 2, and the corresponding corner of the total heat exchange core 2 is sandwiched between two fans 32.

[0143] Specifically, in order to achieve the requirement of compact installation of internal components of the housing 1, a clearance notch 312 is provided on the mounting bracket 31. The design of the clearance notch 312 allows the heat exchange core 2 to use the space provided by the clearance notch 312 to get closer to the fan 32, so as to achieve a compact structural design inside the housing 1.

[0144] By providing a clearance notch 312 on the mounting bracket 31, the corner of the total heat exchange core 2 will be inserted into the area between the two fans 32 and connected to the first partition 15, so that the total heat exchange core 2 can be arranged closer to the fans 32, the components in the housing 1 are more compactly distributed, which is more conducive to the design requirements of overall structural compactness, so as to reduce the overall volume of the housing 1.

[0145] Meanwhile, since the total heat exchange core 2 is closer to the inlet of the fan 32, it is more conducive to increasing the negative pressure at the heat exchange core, so as to accelerate the flow speed of the air in the total heat exchange core 2.

[0146] In one embodiment of this application, in order to improve the assembly efficiency of the insulation structure installed inside the outer casing 1, the following structural improvements are made to the indoor unit of the air conditioner.

[0147] Reference 2. Figure 13 The indoor unit of the air conditioner includes an insulation frame 6, which is provided with a first connection port 61, a second connection port 62, a third connection port 63 and a fourth connection port 64.

[0148] The insulation frame 6 is set in the outer shell 1 and abuts against the inner wall of the outer shell 1. The first connection port 61 is connected to the indoor air outlet 11, the second connection port 62 is connected to the indoor return air outlet 12, the third connection port 63 is connected to the outdoor air inlet 14, and the fourth connection port 64 is connected to the outdoor air outlet 13.

[0149] Specifically, when the side walls of the outer shell 1 need to be insulated, the integrated insulation frame 6 can be placed into the outer shell 1. The four sides of the insulation frame 6 will be attached to the corresponding inner side walls of the outer shell 1. Thus, by simply placing the entire insulation frame 6 into the outer shell 1, the four sides of the outer shell 1 can be insulated.

[0150] By adding an insulation frame 6 to the outer shell 1, the side wall of the outer shell 1 can be insulated as a whole to meet the requirements of thermal insulation. The insulation frame 6 is an integral structure, which avoids gaps caused by the assembly structure and has better thermal insulation performance. The relevant components in the outer shell 1 are installed in the insulation frame 6 to improve the accuracy and consistency of assembly, which is more conducive to improving assembly efficiency.

[0151] In one embodiment, a partition plate 65 is provided in the thermal insulation frame 6, and a ventilation opening 651 is provided on the partition plate 65. The partition plate 65 covers the inside of the first connection port 61, and the partition plate 65 separates the first connection port 61 and the second connection port 62. The partition plate 65 divides the thermal insulation frame 6 into a first installation area and a second installation area.

[0152] The first installation area is equipped with a heat exchanger 5, and the second installation area is equipped with a total heat exchange core 2 and a fan assembly 3.

[0153] The outlet of one fan 32 is connected to the fourth connection port 64, and the outlet of the other fan 32 is connected to the first installation area through the ventilation port 651.

[0154] The heat exchanger 5 is arranged between the vent 651 and the first connection port 61.

[0155] Specifically, since the insulation frame 6 is built into the outer shell 1, the relevant components in the outer shell 1 are also surrounded by the insulation frame 6. In order to enable the installation of different components in different areas, partitions 65 can also be set in the insulation shelf.

[0156] The partition plate 65 and the insulated shelf are integrated into one structure. Under the action of the partition plate 65, the insulated frame 6 forms a first installation area and a second installation area that are separated from each other. The first installation area is used to install the heat exchanger 5 so that the airflow entering the room can have good heat exchange with the heat exchanger 5, thereby improving the heat exchange efficiency.

[0157] By setting a partition plate 65 in the insulation frame 6, the insulation frame 6 is divided into two installation areas for installing relevant components in the outer shell 1 respectively, so as to improve the accuracy and consistency of assembly and improve the assembly efficiency.

[0158] In one embodiment, for components such as the fan assembly 3, the heat exchange core 2, and the electrical control box 4 that are installed in the second installation area, based on the description in the above embodiment, a first partition 15 and a second partition 16 can be provided in the second installation area during the actual assembly process.

[0159] Specifically, two fan assemblies 3 are arranged side by side on one side of the housing 1; a first partition 15 is also provided in the housing 1, the first partition 15 is located between the two fan assemblies 3; a positioning recess 66 is formed on the inner wall of the heat insulation frame 6, the end of the first partition 15 is inserted into the positioning recess 66; the first partition 15 is disposed between the positioning recess 66 and the total heat exchange core 2.

[0160] In another embodiment, the second partition 16 is disposed between the partition plate 65 and the total heat exchange core 2.

[0161] Specifically, by setting a second partition 16 in the outer casing 1, the second partition 16 is connected between the partition plate 65 and the total heat exchange core 2, thereby using the second partition 16 to isolate the exhaust air channel and the fresh air channel at the total heat exchange core 2, so as to ensure that the outdoor exhaust air and the indoor air intake air do not affect each other.

[0162] In one embodiment, in order to extend the service life of the total heat exchange core 2, the insulation frame 6 is provided with two first mounting parts 67 arranged opposite to each other, and a first filter screen 18 is provided between the two first mounting parts 67.

[0163] The first filter 18 is located between the total heat exchange core 2 and the indoor return air vent 12.

[0164] Specifically, the first filter 18 is installed and fixed through two first mounting parts 67 formed in the insulation frame 6. The first filter 18 can filter the air input into the outer shell 1 from the indoor return air vent 12, and then the filtered air enters the total heat exchange core 2.

[0165] The first mounting part 67 can be a physical entity that assembles the first filter screen 18 into place by means of screw fixing or other methods, or it can be a structure such as a slot to meet the installation requirements of the first filter screen 18.

[0166] By setting the first filter 18, the indoor air can be effectively filtered after entering the outer casing 1, thus protecting the total heat exchange core from dust and extending its service life. The first mounting part 67 on the insulation frame 6 allows for easy installation of the first filter 18, improving assembly convenience.

[0167] In one embodiment, the thermal insulation frame 6 is provided with two second mounting parts 68 arranged opposite to each other, and a second filter screen 19 is provided between the two second mounting parts 68;

[0168] The second filter 19 is located between the total heat exchange core 2 and the outdoor air inlet 14.

[0169] Specifically, after outdoor air enters the outer casing 1, it is first filtered by the second filter 19 before flowing into the total heat exchange core 2.

[0170] The second mounting part 68 can be used to assemble the second filter screen 19 into place by means of screw fixing or other methods, or it can be a structure such as a slot to meet the installation requirements of the second filter screen 19.

[0171] By setting the second filter 19, outdoor air can be effectively filtered after entering the outer casing 1, thus protecting the total heat exchange core from dust and extending its service life. The second mounting part 68 on the insulation frame 6 allows for easy installation of the second filter 19, improving assembly convenience.

[0172] In another embodiment, in order to improve the heat exchange efficiency between the heat exchanger 5 and the airflow, a first mounting plate 51 is provided between the first end of the heat exchanger 5 and the inner sidewall adjacent to the insulation frame 6, and a second mounting plate 52 is provided between the second end of the heat exchanger 5 and the insulation frame 6. The second mounting plate 52 is inclined toward the indoor air outlet 11 and connected between the indoor air outlet 11 and the indoor return air outlet 12.

[0173] Specifically, the heat exchanger 5 is fixedly installed in the first installation area by the mounting plates 151 on both sides. The first mounting plate 51 and the second mounting plate 52 can provide good fixation and support for the heat exchanger 5 on both sides.

[0174] In addition, the second mounting plate 52 extends to the indoor air outlet 11. The inclined second mounting plate 52 can guide the airflow after heat exchange by the heat exchanger 5, so that the airflow can quickly flow to the indoor air outlet 11.

[0175] By providing mounting plates 151 at both ends of the heat exchanger 5, a relatively enclosed air outlet area is formed between the heat exchanger 5 and the indoor air outlet 11. Furthermore, the second mounting plate 52 extends obliquely toward the indoor air outlet 11. The second mounting plate 52 can guide the airflow after heat exchange by the heat exchanger 5, so that the airflow after heat exchange can flow smoothly toward the indoor air outlet 11.

[0176] In one embodiment, a water receiving tray (not shown) is also provided in the outer casing 1, which is located in the first installation area and arranged below the heat exchanger 5.

[0177] Specifically, the water receiving tray will be installed in the first installation area. The water receiving tray and the top plate 111 of the outer shell 1 form a relatively closed heat exchange cavity in the first installation area, so that the airflow entering the heat exchange cavity can exchange heat with the heat exchanger 5 in a good manner.

[0178] Meanwhile, the drip tray can collect the defrosting water from heat exchanger 5.

[0179] In addition, a drain pump 53 is provided in the outer casing 1. The drain pump 53 is arranged above the water receiving tray and between the second mounting plate 52 and the partition plate 65.

[0180] By setting a water collection tray at the bottom of the first installation area to meet the requirements for condensate collection on the evaporator, and arranging the drain pump 53 on the outside of the second installation plate 52, the airflow after heat exchange by the heat exchanger 5 is reduced from being blocked by the drain pump 53 on its way to the indoor air outlet 11, thus reducing the wind resistance at the indoor air outlet 11 and improving the air outlet efficiency.

[0181] In one embodiment of this application, in order to achieve a compact design of the overall structure, the indoor unit of the air conditioner is designed with corresponding improvements, as follows.

[0182] The indoor unit of the air conditioner includes a casing 1, on which an indoor air outlet 11, an indoor return air outlet 12, an outdoor air outlet 13, and an outdoor air inlet 14 are provided. A fresh air channel is formed between the indoor air outlet 11 and the outdoor air inlet 14, and an exhaust air channel is formed between the indoor return air outlet 12 and the outdoor air outlet 13.

[0183] The indoor unit of the air conditioner includes a total heat exchange core 2, which is disposed in the outer casing 1. The total heat exchange core 2 is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct and the airflow flowing through the exhaust air duct.

[0184] The indoor unit of the air conditioner includes a heat exchanger 5, which is configured to exchange heat with the airflow passing through the fresh air duct.

[0185] The indoor unit of the air conditioner includes two fan assemblies 3. Each fan assembly 3 includes a mounting bracket 31 and a fan 32. The fan 32 is mounted on the mounting bracket 31. One fan assembly 3 is located in the fresh air duct, and the other fan assembly 3 is located in the exhaust air duct.

[0186] The outer casing 1 has a first installation area and a second installation area. The heat exchanger 5 is located in the first installation area, and the fan assembly 3 and the total heat exchange core 2 are located in the second installation area. The indoor air outlet 11 is connected to the first installation area, and the indoor return air outlet 12, the outdoor air outlet 13 and the outdoor air inlet 14 are connected to the second installation area. The first installation area extends to the indoor return air outlet 12 and partially covers the indoor return air outlet 12 inside the outer casing 1.

[0187] Specifically, because the indoor unit of the air conditioner centrally houses the heat exchanger 5 and the total heat exchange core 2, the number of components inside the outer casing 1 is relatively large. The distance between the indoor return air vent 12 and the indoor water outlet on the outer casing 1 must meet the connection requirements of the user's home piping; therefore, the distance cannot be too small. To make the structure more compact, part of the area of ​​the indoor return air vent 12 can be occupied inside the outer casing 1 to meet the installation requirements of the relevant components.

[0188] Specifically, the first installation area extends to the indoor return air vent 12 and partially covers the indoor return air vent 12 inside the outer casing 1. This further increases the length of the first installation area, allowing components such as the heat exchanger 5 and the drain pump 53 to be installed in the first installation area. Furthermore, it ensures that the heat exchanger 5 has a sufficiently large heat exchange area while maintaining a compact structural design.

[0189] By setting independent first and second installation areas in the outer casing 1, the first installation area is used to meet the installation requirements of the heat exchanger 5. At the same time, in order to meet the compact design requirements of the internal structure of the outer casing 1 and the heat exchanger 5's heat exchange area requirements, the first installation area will occupy part of the area where the indoor return air vent 12 is located, so that part of the indoor return air vent 12 is blocked by the first installation area. In this way, the area between the indoor return air vent 12 and the indoor air outlet vent 11 can be fully utilized to increase the size of the first installation area, so as to meet the installation requirements of the heat exchanger 5 with a larger heat exchange area. On the one hand, the heat exchange area of ​​the heat exchanger 5 can be increased, and on the other hand, the compact design requirements of the internal structure of the outer casing 1 can be met, thereby reducing the overall size of the air conditioner.

[0190] In one embodiment, based on the above embodiment, the insulation frame 6 is divided into a first installation area and a second installation area by a partition plate 65;

[0191] The insulation frame 6 will partially block the indoor return air vent 12 inside the outer shell 1.

[0192] Specifically, by adding an insulation frame 6 to the outer shell 1, on the one hand, the insulation frame 6 can provide integrated insulation for the side walls of the outer shell 1, thereby meeting the requirements for thermal insulation. The insulation frame 6 is an integral structure, avoiding gaps caused by the assembly structure and having better insulation performance. On the other hand, the partition plate 65 in the insulation frame 6 divides the insulation frame 6 into two installation areas for installing relevant components in the outer shell 1 respectively, thereby improving the accuracy and consistency of assembly and further improving assembly efficiency.

[0193] In one embodiment, the ventilation area of ​​the second connection port 62 is smaller than the ventilation area of ​​the indoor return air vent 12;

[0194] The insulation frame 6 is inside the outer shell 1, partially blocking the indoor return air vent 12.

[0195] Specifically, by designing the ventilation area of ​​the second connection port 62 to be smaller than that of the indoor return air port 12, the length of the first installation area can be extended inside the outer shell 1 through the insulation frame 6 to meet the installation requirements of the heat exchanger 5 and achieve a compact structural design.

[0196] The area of ​​the indoor return air vent 12 that is blocked by the insulation frame 6 and the ratio of the total open area of ​​the indoor return air vent 12 can be obtained by testing according to different air supply requirements, as long as the requirements of the return air volume of the indoor air conditioning unit are met, and no restrictions are imposed here.

[0197] In another embodiment of this application, in order to achieve the separation of strong and weak currents of the relevant electrical components in the housing 1, the following structural improvements are made to the indoor unit of the air conditioner.

[0198] refer to Figure 2 , Figure 3 as well as Figure 14 The indoor unit of the air conditioner includes an electrical control box 4, which contains an electrical controller. The electrical control box 4 is mounted on the outer casing 1.

[0199] The outer casing 1 is provided with a first wiring section 171, through which the cable of the air valve is wired and extended. The cable of the air valve extends from the first end of the electrical control box 4 into the electrical control box 4 and is electrically connected to the electrical controller. The cable of the fan 32 is arranged outside the first wiring section 171 and extends from the second end of the electrical control box 4 into the electrical control box 4 and is electrically connected to the electrical controller. The first end and the second end of the electrical control box 4 are arranged opposite to each other.

[0200] Specifically, the outer casing 1 is provided with a first wiring section 171, which can form a cable routing channel for the air supply valve. Furthermore, under the action of the first wiring section 171, the cable of the air valve can be isolated from the cable on the fan 32.

[0201] In addition, the cables of the air valve and the fan 32 extend from different ends of the electrical control box 4 into the electrical control box 4, which more effectively separates the strong and weak currents.

[0202] This avoids the cable of the fan 32 from crossing with the cable of the air valve during the wiring process of the outer casing 1, which would otherwise result in the mixing of strong and weak current.

[0203] Since the strong and weak current cables are isolated from each other, especially the cable of the air valve is protected by separate wiring through the first wiring section 171, the safety of use can be improved.

[0204] By providing independent first wiring sections 171 in the outer casing 1, the cable of the air valve is routed separately as a low-voltage cable through the first wiring section 171, the cable of the air guide valve enters the electrical control box 4 from the first end of the electrical control box 4, and the cable of the fan 32 is routed outside the first wiring section 171 to isolate it from the cable of the air valve. Furthermore, the cable of the fan 32 enters the electrical control box 4 from the second end of the electrical control box 4 to achieve effective separation of strong and weak currents, thereby improving the safety and reliability of the air conditioner indoor unit.

[0205] In another embodiment of this application, a first wiring section 171 and a second wiring section 172 are provided in the housing 1. The first wiring section 171 and the second wiring section 172 are isolated from each other. The cable of the air valve is wired through the first wiring section 171 and extends to the electrical control box 4 and is electrically connected to the electrical controller. The cable of the fan 32 is wired through the second wiring section 172 and extends to the electrical control box 4 and is electrically connected to the electrical controller.

[0206] Specifically, in order to simultaneously guide and protect the cables of the air valve and the fan 32, a first wiring section 171 and a second wiring section 172 can be provided in the housing 1. The first wiring section 171 and the second wiring section 172 are completely separated, with sufficient safety distance between them to avoid mutual interference between the high-voltage and low-voltage cables.

[0207] By providing independent first wiring section 171 and second wiring section 172 in the outer casing 1, the cable of the air valve is routed through the first wiring section 171 and guided to extend into the electrical control box 4. Similarly, the cable of the fan 32 is routed through the second wiring section 172 and guided to extend into the electrical control box 4. In this way, the cables of the air valve and the fan 32 are separated from each other, so as to achieve the separation of strong and weak current. On the one hand, the cable routing in the outer casing 1 is more orderly, and on the other hand, it can avoid safety hazards caused by the crossing of strong and weak current, thereby improving the safety and reliability of the air conditioner indoor unit.

[0208] In one embodiment, the first wiring section 171 is arranged between the top plate 111 of the total heat exchange core 2 and the outer casing 1.

[0209] Specifically, the first wiring section 171 can guide the extension wiring of the damper's cable between the total heat exchange core 2 and the top plate 111 of the outer casing 1. In this way, the space between the total heat exchange core 2 and the outer casing 1 can be fully utilized to handle the wiring of the damper's cable. On the one hand, the damper's cable can be wired closer to the electrical control box 4. On the other hand, the total heat exchange core 2 can shield the damper's cable to organize the wiring harness.

[0210] By placing the first wiring section 171 between the heat exchange core 2 and the top plate 111 of the outer casing 1, the space between the heat exchange core 2 and the top plate 111 of the outer casing 1 can be fully utilized for wiring, thereby eliminating the need for long-distance wiring along the side wall of the outer casing 1 and effectively saving the amount of cable used.

[0211] In one embodiment, two fan assemblies 3 are arranged side by side on one side of the housing 1.

[0212] Specifically, by arranging the two fan assemblies 3 on the same side of the housing 1, the cables of the two fans 32 can be wired together, which simplifies the operation of wiring the two fans 32 separately and improves assembly efficiency.

[0213] Furthermore, the two fans 32 are arranged side by side, which facilitates the wiring of the fans 32 together and realizes the neat design of the power cable harness.

[0214] In one embodiment, the electrical control box 4 is disposed in the exhaust duct and is located on the side of the total heat exchange core 2.

[0215] Specifically, the electrical control box 4 is installed in the exhaust duct formed in the outer casing 1, utilizing the space of the exhaust duct. Simultaneously, within the exhaust duct, the heat generated by the electrical controller within the electrical control box 4 can be carried away by the airflow within the exhaust duct, thus achieving heat dissipation.

[0216] In addition, since the electrical control box 4 is located on one side of the total heat exchange core 2, the cable of the air valve can enter the electrical control box 4 after passing through the total heat exchange core 2, thereby shortening the wiring length.

[0217] By placing the electrical control box 4 on the side of the total heat exchange core 2 and in the exhaust channel, the airflow in the exhaust channel is used to dissipate heat from the electrical control box 4. On the other hand, the cable can be directly extended to the electrical control box 4 on the side through the wiring above the total heat exchange core 2, thereby shortening the extension length of the cable.

[0218] In one embodiment, a wiring plate 17 is disposed in the outer casing 1 between the total heat exchange core 2 and the top plate 111 of the outer casing 1;

[0219] The wiring board 17 is provided with a first wiring groove, and the cable of the air valve is placed in the first wiring groove, which is the first wiring section 171.

[0220] Specifically, in order to facilitate the formation of the first wiring section 171 in the housing 1, a separate wiring plate 17 can be used to form the first wiring section 171. The wiring plate 17 is provided with a first wiring groove for the air valve wiring, so as to restrict and guide the direction of the air valve cable through the first wiring groove. At the same time, the first wiring groove ensures that the air valve cable is independent of the fan 32 cable and does not cross contact.

[0221] During the assembly of the housing 1, the cable guide plate 17 will be arranged against the top plate 111 of the housing 1 and can be fixed to the top plate 111 of the housing 1 with screws. The cable guide plate 17 is made of insulating material to improve the safety of cable wiring.

[0222] By setting a wiring plate 17 between the top plate 111 of the total heat exchange core 2 and the outer shell 1, and setting a first wiring groove on the wiring plate 17 to meet the cable wiring requirements of the air valve, the function of the first wiring section 171 is realized.

[0223] In one embodiment, a second wiring groove is provided on the wiring plate 17, and the second wiring groove is arranged at intervals from the first wiring groove. The cable of at least one fan 32 is arranged in the second wiring groove.

[0224] Specifically, in order to meet the wiring requirements of the fan 32 through the wiring board 17, a second wiring groove can be provided on the wiring board 17. The second wiring groove is isolated from the first wiring groove to achieve the separation of strong and weak current.

[0225] By providing a second wiring groove at an interval from the first wiring groove on the wiring plate 17, the second wiring groove can meet the wiring requirements of the fan 32's cables, thereby realizing the function of the second wiring section 172.

[0226] In one embodiment, wire clips are respectively provided in the first wiring slot and the second wiring slot.

[0227] Specifically, after the cables in the first and second wiring troughs are in place, cable clips can be used on the outside to limit the cables inside the wiring troughs, thereby preventing the cables from coming out of the wiring troughs.

[0228] By installing cable clips in the first and second wiring slots, the cable clips can confine the cables within the wiring slots to prevent them from slipping out, thereby improving the reliability of the wiring.

[0229] In one embodiment, when an insulation frame 6 is provided in the outer casing 1, a wiring trough 69 is also provided on the insulation frame 6 in the second installation area. The wiring trough 69 is arranged between the total heat exchange core 2 and the electrical control box 4; the cable of the air valve is also arranged in the wiring trough 69.

[0230] Specifically, after the air valve cable passes between the top plate 111 of the total heat exchange core 2 and the outer shell 1, it is further guided to extend into the electrical control box 4 through the wiring groove 69 formed on the insulation frame 6.

[0231] By additionally providing a wiring trough 69 on the insulation frame 6, the wiring trough 69 can cooperate with the first wiring section 171 to route the cables of the air valve, thereby making full use of the structure of the insulation frame 6 itself to further meet the wiring requirements of the air valve cables and improve the wiring quality of the cables.

[0232] In one embodiment of this application, in order to meet the requirements of internal circulation airflow and simplify the structure inside the casing 1 to reduce assembly and manufacturing costs, the air conditioner indoor unit is improved as follows.

[0233] refer to Figure 3 A damper 161 is also provided between the total heat exchange core 2 and the outer shell 1. The damper 161 is arranged between the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel. The damper 161 is configured to selectively connect the indoor air outlet 11 and the indoor return air outlet 12.

[0234] Specifically, in order to enable the indoor return air vent 12 and indoor air outlet 11 to be interconnected when the exhaust air duct and fresh air duct are in internal circulation, a damper 161 can be directly added between the inlet of the exhaust air heat exchange channel and the outlet of the fresh air heat exchange channel of the total heat exchange core 2.

[0235] When damper 161 is closed, indoor return air vent 12 and indoor air outlet vent 11 are isolated, thus isolating the exhaust duct and fresh air duct to meet the requirement of independent indoor and outdoor air intake and exhaust. At this time, the dampers of outdoor air inlet 14 and outdoor air outlet 13 are in the open state.

[0236] When internal circulation is required, the damper 161 can be opened. The damper 161 connects the indoor return air vent 12 and the indoor air outlet 11 at the total heat exchange core 2. At this time, the dampers of the outdoor air inlet 14 and the outdoor air outlet 13 are in the closed state.

[0237] By installing a damper 161 between the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel in the total heat exchange core 2, the damper 161 controls the interconnection between the indoor return air vent 12 and the indoor air outlet vent 11. This allows for rapid temperature adjustment when the indoor temperature has not reached the set value, by opening the damper 161 to connect the indoor return air vent 12 and the indoor air outlet vent 11, thereby improving the user experience. Furthermore, since the damper 161 is installed in the total heat exchange core 2 and separates the inlet of the exhaust heat exchange channel and the outlet of the fresh air heat exchange channel, there is no need to add an additional internal circulation duct, reducing the number of components used and lowering assembly and manufacturing costs.

[0238] In one embodiment, a first baffle 15 is provided on one side of the outlet of the fresh air heat exchange channel of the total heat exchange core 2, and a second baffle 16 is provided on the other side of the outlet of the fresh air heat exchange channel of the total heat exchange core 2.

[0239] The first partition 15 and the second partition 16 are configured to separate the exhaust duct and the fresh air duct. The first partition 15 is arranged between the indoor air outlet 11 and the outdoor air outlet 13, and the second partition 16 is also arranged between the indoor return air outlet 12 and the indoor air outlet 11.

[0240] The second partition 16 is provided with a communication port, and the damper 161 is disposed in the communication port.

[0241] Specifically, the first partition 15 and the second partition 16 can meet the installation requirements of installing the total heat exchange core 2 in the housing 1 and isolating the exhaust air channel and the fresh air channel from each other. The damper 161 is installed in the communication port on the second partition 16 to facilitate the installation of the damper 161 in the housing 1.

[0242] By setting the first partition 15 and the second partition 16, the total heat exchange core 2 separates the exhaust air channel and the fresh air channel at the outlet of the fresh air heat exchange channel. At the same time, the connecting port set on the second partition 16 can meet the mutual connection between the exhaust air channel and the fresh air channel so that the indoor return air port 12 and the indoor air outlet 11 can be connected to achieve internal circulation. The damper 161 is installed at the connecting port to control the start and stop of the internal circulation, which facilitates the installation and fixation of the damper 161.

[0243] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0244] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The outer shell contains a fresh air duct and an exhaust air duct. A total heat exchange core is disposed in the outer casing and is configured to perform heat exchange treatment on the airflow flowing through the fresh air duct and the airflow flowing through the exhaust duct. A heat exchanger configured to exchange heat with the airflow flowing through the fresh air duct; Two sets of fan assemblies, each fan assembly including a mounting bracket and a fan, the fan being mounted on the mounting bracket; one fan assembly is disposed in the fresh air duct, and the other fan assembly is disposed in the exhaust air duct; Corresponding to each of the fan assemblies, the top plate of the housing is provided with an assembly unit, the assembly unit including a first connecting part and a second connecting part, the first connecting part and the second connecting part having a plug-in interface with the same direction, the mounting bracket being provided with a first plug-in part and a second plug-in part; the first plug-in part is plugged into the first connecting part from the corresponding plug-in interface, and the second plug-in part is plugged into the second connecting part from the corresponding plug-in interface.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The outer casing includes a first end face and a second end face. An outdoor air outlet and an outdoor air inlet are formed on the first end face, and an indoor return air inlet and an indoor air outlet are formed on the second end face. The fresh air duct is used to connect the outdoor air inlet and the indoor air outlet, and the exhaust duct is used to connect the indoor return air inlet and the outdoor air outlet. The two fan assemblies are arranged side by side on one side of the housing along the length from the first end face to the second end face; A first partition is provided between the two fan assemblies, the first partition being disposed between the side wall of the housing and the total heat exchange core.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The connection ports of the first connecting part and the second connecting part are both facing the first partition. The first connecting part includes a connecting vertical part and a connecting horizontal part. There are two connecting vertical parts, both of which are perpendicular to the top plate. The connecting horizontal part is parallel to the top plate and forms a first insertion gap with the top plate. The first insertion part is inserted into the first insertion gap.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, Both the vertical connecting portion and the horizontal connecting portion have guide portions formed at their ends that are opposite to the direction of the first insertion gap. The guide portions are used to guide the first insertion portion into the first insertion gap.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The second connecting part is fixed on the top plate. The second connecting part includes a fixed base plate, a connecting base plate, and a limiting upright plate. The fixed base plate is fixed on the top plate. A second insertion gap is formed between the connecting base plate and the top plate. The limiting upright plate is formed at one end of the connecting base plate away from the fixed base plate. The second insertion part is inserted into the second insertion gap.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The second insertion part includes an insertion vertical part and an insertion horizontal part. The insertion vertical part is perpendicular to the insertion horizontal part, the insertion horizontal part extends into the second insertion gap, and the insertion vertical part abuts against the limiting vertical plate.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The top plate is also provided with a fixing part, and the mounting bracket is provided with a corresponding fixing receiving part, which is detachably connected to the fixing part.

8. The indoor unit of the air conditioner according to claim 2, characterized in that, The first partition is detachably connected to a mounting plate. The mounting plate has a hanging part on the side that contacts the top plate, and a snap-fit ​​part is provided at the corresponding position of the top plate. A snap-fit ​​groove is formed between the snap-fit ​​part and the top plate, and the hanging part is connected in the snap-fit ​​groove.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The side wall of the housing is also provided with a positioning recess, and the end of the mounting plate that contacts the side wall of the housing is provided with a positioning part, which is connected to the positioning recess.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The bottom plate of the outer casing is also provided with a maintenance port, and a maintenance cover is provided on the maintenance port. One end of the maintenance cover is hinged to the bottom plate of the outer casing, and the other end is detachably connected to the outer casing by fasteners.

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