Air conditioner cabinet

Abstract

The utility model provides a kind of air conditioner cabinet, it is related to air conditioning technical field.The air conditioner cabinet includes: air duct panel, it is arranged by its air inlet side and extends to the air outlet side of air duct and is penetrated, the cross section of air duct is circular;Axial flow fan blade, it is arranged in the air duct;Air outlet mesh cover, it is connected to the air outlet side of air duct panel, air outlet mesh cover includes grating part, grating part has the air outlet area for airflow to pass, grating part is rectangular and at least covers the air outlet of air duct;Shell, air duct panel and air outlet mesh cover are arranged in the interior of shell, air outlet is opened on shell, and air outlet is rectangular.The air conditioner cabinet provided by the utility model has the characteristics that air supply distance is farther, and air volume is greater.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to an air conditioning unit. Background Technology

[0002] The air duct assembly of the air conditioning unit includes an air duct panel, which is formed with an air duct that accommodates the fan blades and allows airflow.

[0003] In some existing products, the air duct is circular, while the air outlet on the cabinet casing is designed as rectangular. As the airflow velocity gradually decreases along the flow direction, when the airflow from the circular air duct enters the rectangular air outlet where the cross-sectional shape changes, a significant abrupt change in cross-section occurs in the flow path. This creates a large flow resistance for the airflow whose velocity has already decreased to a lower level, resulting in airflow loss, shortened air delivery distance, and affecting the overall air delivery performance of the unit. Utility Model Content

[0004] The problem solved by this invention is that existing air conditioning cabinet units have short air delivery distances and small air volumes.

[0005] To solve the above problems, this utility model provides an air conditioner cabinet unit, which has the characteristics of longer air delivery distance and larger air volume.

[0006] The embodiments of this utility model provide a technical solution: An air conditioner cabinet unit includes: The air duct panel has an air duct extending from its air inlet side to its air outlet side, and the air duct has a circular cross-section. Axial flow fan blades are installed inside the air duct; An air outlet mesh cover is connected to the air outlet side of the air duct panel. The air outlet mesh cover includes a grille section, which has an air outlet area for airflow to pass through. The grille section is rectangular and at least covers the air outlet of the air duct. The housing, the air duct panel and the air outlet screen are both disposed inside the housing, and the housing has an air outlet that is rectangular.

[0007] The air outlet of a duct refers to the opening at the end from which airflow exits. In the air conditioning unit provided in this embodiment, the grille of the air outlet cover is rectangular and at least covers the air outlet of the duct, achieving a reliable seal around the duct perimeter. Furthermore, a rectangular airflow channel is formed between the air outlet cover and the air outlet, causing the airflow cross-section to change to a rectangle in advance. At this point, the airflow velocity is higher, and the change in the cross-section results in less resistance to the airflow, significantly improving the air delivery distance and air volume.

[0008] In an optional embodiment, the centerline of the air outlet coincides with the centerline of the grille.

[0009] In an optional embodiment, the rotation center line of the axial fan blades coincides with the center line of the air outlet.

[0010] The rotation centerline of the axial fan blades is coaxial with the air duct and coincides with the centerline of the air outlet, which can reduce wind resistance, increase air volume and air outlet efficiency, and achieve better air outlet effect.

[0011] In an optional embodiment, the air conditioner unit further includes an air outlet frame, which is connected to the side of the air outlet grille away from the air duct panel; The air outlet frame at least surrounds the air outlet area of ​​the grille portion; And / or, the air outlet frame at least surrounds the air outlet. And / or, the air outlet frame is rectangular.

[0012] In an optional embodiment, the surface of the air outlet side of the air duct panel is provided with a mating ring surrounding the air duct, and the mating ring is sealed and inserted into the air outlet mesh cover. The matching ring at least surrounds the air outlet area of ​​the grille portion, and / or, The matching ring is rectangular.

[0013] The rectangular ring wall is designed to fit snugly into the exhaust grille, ensuring a quick and precise fit between the exhaust grille and the duct panel and achieving a reliable seal.

[0014] In an optional embodiment, the air outlet mesh cover is provided with mesh cover hooks on both the left and right sides for hanging on the air duct panel; and / or, The top and / or bottom of the air outlet mesh cover are connected to the air duct panel via threaded connectors.

[0015] The assembly precision between the air outlet grille and the duct panel is further improved by using hooks on both sides of the grille for positioning and attachment. The threaded connectors at the top and / or bottom of the grille lock it to the duct panel, enhancing the stability of the assembly structure.

[0016] In an optional embodiment, a guide ring is provided at the end of the air duct away from the air outlet screen, and the cross-sectional area of ​​the guide ring gradually increases in the direction away from the air outlet screen; and / or, An air expansion ring is provided at one end of the air duct near the air outlet cover. The cross-section of the air expansion ring gradually expands along the direction close to the air outlet cover, and the two ends of the air expansion ring smoothly transition to the air duct and the air outlet side of the air duct panel, respectively.

[0017] The air guide ring forms a widened air intake structure, improving the air intake angle and smoothness of the airflow, reducing wind resistance, and increasing air volume and delivery efficiency. The widened air intake ring further enhances air volume and reduces wind resistance by creating a widened air delivery structure.

[0018] In an optional embodiment, a gap is formed between the grille and the air outlet side of the air duct panel.

[0019] A gap is formed between the grille and the air outlet side of the duct panel to increase the airflow area and improve the utilization rate of the grille, while preventing condensation on the air outlet side of the grille and the duct panel.

[0020] In an optional embodiment, the grille portion is circumferentially distributed with a plurality of spirally radial air guide ribs, and the rotation direction of the axial flow fan blades is opposite to the rotation direction of the plurality of air guide ribs.

[0021] The air guide ribs rotate in the opposite direction to the axial fan blades, which helps to gather the airflow and increase the air delivery distance of the air conditioner unit. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of an air conditioner cabinet unit provided for an embodiment of this utility model; Figure 2 This is an exploded view of the air conditioner unit from one perspective. Figure 3 This is an exploded view of the air conditioner unit from another perspective; Figure 4 This is a cross-sectional view of the air conditioner unit; Figure 5 This is another sectional view of the air conditioner unit; Figure 6 This is a schematic diagram of the connection structure between the upper back panel and the lower side panel. Figure 7 for Figure 6 Enlarged view of region A in the middle; Figure 8 An exploded view of the connection structure between the upper panel and the filter assembly; Figure 9 This is a sectional view of the upper panel; Figure 10 This is a structural diagram of a cabinet air conditioner in practical application. Figure 11 This is a schematic diagram of the connection structure between the base and the lower enclosure. Figure 12 This is a structural schematic diagram of the base plate; Figure 13 This is a structural schematic diagram of the lower enclosure panel; Figure 14 A sectional view of the connection structure between the lower panel, lower enclosure, and base; Figure 15 This is an enlarged schematic diagram of a portion of the area in Figure 14; Figure 16 This is an exploded view of the evaporator assembly; Figure 17 A schematic diagram of an evaporator support structure; Figure 18 for Figure 17 Enlarged view of region B in the middle; Figure 19 This is a partial structural diagram of the connection structure between the evaporator bracket and the upper back plate. Figure 20 This is a schematic diagram of the evaporator assembly. Figure 21 This is a schematic diagram of another structure for the evaporator support; Figure 22 This is a partial structural diagram of the upper back panel; Figure 23 This is a cross-sectional view of the evaporator assembly; Figure 24 for Figure 23 Enlarged diagram of a portion of the area; Figure 25 for Figure 23 An enlarged view of another part of the area; Figure 26 This is a schematic diagram of another structure for an evaporator support; Figure 27 for Figure 26 Enlarged diagram of a portion of the area; Figure 28 for Figure 21 Enlarged diagram of a portion of the area; Figure 29 for Figure 20 Enlarged view of the central area; Figure 30 This is a schematic diagram of the connection structure between the water receiving tray and the pressure plate structure; Figure 31 for Figure 21 An enlarged view of another part of the area; Figure 32 This is a schematic diagram of the connection structure between the electric heating device and the evaporator support. Figure 33 This is a schematic diagram of the water receiving tray. Figure 34 This is a schematic diagram of the electric heating bracket. Figure 35 This is a schematic diagram of the connection structure between the axial flow fan assembly and the duct assembly. Figure 36An exploded view of the connection structure between the axial flow fan assembly and the duct assembly; Figure 37 for Figure 35 Enlarged view of region C in the middle; Figure 38 for Figure 35 Enlarged schematic diagram of region D in the middle; Figure 39 A cross-sectional view of the connection structure of the evaporator bracket, duct panel and motor bracket; Figure 40 for Figure 39 Enlarged diagram of region E in the middle; Figure 41 for Figure 5 Enlarged schematic diagram of region F in the middle; Figure 42 This is a structural schematic diagram of the air duct panel from one perspective. Figure 43 This is a structural schematic diagram of the air duct panel from another perspective; Figure 44 This is an exploded view of the air duct assembly; Figure 45 A cross-sectional view of an air duct assembly; Figure 46 for Figure 45 Enlarged schematic diagram of region G in the middle; Figure 47 This is a structural schematic diagram of the air duct panel from another perspective. Figure 48 This is a schematic diagram of the air outlet grille structure; Figure 49 An exploded view of the connection structure of the axial fan blades, duct panel and air outlet screen. Figure 50 A cross-sectional view of the connection structure of the axial fan blades, duct panel and air outlet screen; Figure 51 Another cross-sectional view of the air duct assembly; Figure 52 for Figure 51 Enlarged schematic diagram of region H in the middle; Figure 53 A cross-sectional view of the connection structure between the air outlet grille and the air duct panel; Figure 54 for Figure 53 Enlarged schematic diagram of region I in the middle; Figure 55 This is a schematic diagram of the connection structure between the air outlet grille and the air duct panel from one perspective. Figure 56 This is a schematic diagram of the connection structure between the air outlet grille and the air duct panel from another perspective. Figure 57This is a schematic diagram of the connection structure between the air duct panel and the electrical control box. Figure 58 This is a schematic diagram of the connection structure between the air outlet frame and the top panel. Figure 59 An exploded view of the connection structure between the air outlet frame and the upper panel; Figure 60 for Figure 59 Enlarged schematic diagram of region J in the middle; Figure 61 for Figure 59 Enlarged diagram of region K in the middle; Figure 62 This is a cross-sectional view of the connection structure between the upper and lower sweeping blades and the connecting rod. Figure 63 for Figure 62 Enlarged schematic diagram of region L in the middle; Figure 64 A schematic diagram showing the connection structure between multiple left and right sweeping blades and the frame; Figure 65 for Figure 64 Enlarged schematic diagram of region M in the middle; Figure 66 for Figure 64 Enlarged schematic diagram of region N in the middle; Figure 67 A cross-sectional view of the connection structure between multiple left and right sweeping blades and the frame; Figure 68 for Figure 67 Enlarged schematic diagram of region O in the middle; Figure 69 This is a schematic diagram of the structure when the upper and lower sweeping blades are closed; Figure 70 This is a schematic diagram of the structure when the upper and lower sweeping blades are opened to their maximum angle.

[0023] Explanation of reference numerals in the attached figures: 10-Air conditioner cabinet unit; 100-Shell; 110-Top panel; 111-Air outlet; 120-Bottom panel; 121-Bottom insert plate; 130-Top back panel; 131-Air inlet; 132-Top surround panel; 1322-Top hook; 1323-Top hanging hole; 1324-Top connecting block; 1325-Top connecting hole; 1326-Hanging groove; 1327-Insertion hole; 1328-Sliding fastener groove; 133-Top plate; 1331-Slide rail; 1332-Top stud; 134-Top folded edge; 135-Top positioning hole; 136-Bottom positioning post; 137-Bottom stud; 140-Bottom surround panel; 141-Insertion groove; 142-Bottom hanging hole; 143-Pipe through hole; 1431-Knockout plate; 144-Bottom 145 - Folded edge; 146 - Groove; 150 - Connecting beam; 151 - Base; 151 - Support; 1511 - Panel mounting groove; 1512 - Panel locking hole; 152 - Protrusion; 1521 - Matching protrusion; 200 - Evaporator assembly; 210 - Evaporator bracket; 211 - Upper bracket; 2111 - Top protrusion; 2112 - Top positioning post; 2113 - First clearance groove; 212 - Side frame; 2121 - Support plate; 2122 - First baffle plate; 2123 - Water guiding structure; 2124 - Drainage notch; 2125 - Connecting rib; 2126 - Water guiding rib; 2127 - Second baffle plate; 2128 - Water passage hole; 2129 - Water passage gap; 213 - Water receiving tray; 2131 - Bottom positioning hole ; 2132-Bottom screw hole; 2133-Fixing plate; 2134-Plate surface positioning post; 2135-Plate surface stud; 2136-Wire passage groove; 214-Bottom drain outlet; 215-Stain barrier post; 216-Water outlet; 217-Water baffle; 2171-Reinforcing plate; 218-Pipe passage groove; 2181-First arc-shaped groove wall; 2182-Second arc-shaped groove wall; 220-Evaporator; 221-First part; 222-Second part; 223-Pipe assembly; 224-Return bend structure; 230-Wire harness structure; 240-Bracket insertion post; 250-Sealing step part; 251-Overlap wall; 2511-Bend part; 2512-First guide wall; 2513-Second guide wall; 252-Limiting wall; 25 3-Insulated cavity; 300-Axial flow fan assembly; 310-Motor bracket; 311-Side flange; 312-Bracket limiting hole; 313-Top flange; 320-Motor; 330-Axial flow fan blade; 331-Blade; 400-Duct assembly; 410-Duct panel; 411-Duct; 4111-Air guide ring; 4112-Air expansion ring; 412-Lower mounting part; 4121-Center hollow part; 4122-Positioning slot; 413-Upper mounting part; 4131-Limiting post; 414-Sealing flange; 415-Air inlet surface; 416-Water guide surface; 417-Matching ring; 418-Mesh cover hanging part; 419-Drainage groove; 4191-Panel drain outlet; 420-Outlet mesh cover; 421-Mesh cover hook;422-Grate section; 4221-Air guide rib; 4222-Annular rib; 423-Temperature equalization cavity; 424-Inner rib; 4241-Outer protrusion; 425-Outer rib; 4251-Inner protrusion; 4252-Guide section; 4253-Water guide section; 426-Mesh drain outlet; 427-Water guide plate; 428-Threaded connection; 429-Drain plate; 430-Air outlet frame; 431-Matching skirt; 4 32-Frame; 4321-Shaft hole; 4322-Disassembly / assembly hole; 4323-Mating protrusion; 433-Upper and lower sweeping blades; 4331-Connecting plate; 4332-Connecting shaft; 4333-First rotating shaft; 434-Connecting rod; 4341-Rod body; 4342-Mating block; 4343-Mating hole; 4344-Left clearance notch; 435-Left and right sweeping blades; 4351-Second rotating shaft; 4352-Limit 4353-Water baffle; 4354-Avoidance notch; 440-Insulation felt; 450-Water collection trough; 451-Drain outlet; 452-Bottom wall of the guide; 453-Side wall of the guide; 460-Side guide groove; 461-Side drain outlet; 462-Guide rib; 470-Air duct partition; 500-Electrical control box; 510-Box body; 520-Box cover; 600-Support component; 700-Filter assembly; 7 10-Filter screen; 711-Screen hook; 712-Insert plate; 713-Sliding buckle; 720-Filter screen; 721-Hand groove; 800-Pressure climbing structure; 810-First arc-shaped wall surface; 820-Second arc-shaped wall surface; 900-Electric heating device; 910-Electric heating; 920-First bracket; 921-Bracket insertion part; 930-Second bracket; 940-Mounting position; 941-Electric heating locking hole. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Please refer to the following: Figures 1 to 5 , Figure 1 The diagram shown is a structural schematic of the air conditioner unit 10 provided in this embodiment. Figure 2 The image shown is an exploded view of the air conditioner unit 10 from one perspective. Figure 3 The image shown is an exploded view of the air conditioner unit 10 from another perspective. Figure 4 The image shown is a cross-sectional view of the air conditioner unit 10. Figure 5 The image shown is another cross-sectional view of the air conditioner unit 10.

[0026] The air conditioner cabinet unit 10 provided in this embodiment includes a housing 100, an evaporator assembly 200, an axial fan assembly 300, and an air duct assembly 400. An air inlet 131 is provided on the rear surface of the housing 100, and an air outlet 111 is provided on the front surface. The air inlet 131, the evaporator assembly 200, the axial fan assembly 300, the air duct assembly 400, and the air outlet 111 are arranged in a straight line in the airflow path.

[0027] In practical applications, when the air conditioner unit 10 is running, external air is drawn into the air inlet 131 by the axial flow fan assembly 300, and then passes through the evaporator assembly 200, the axial flow fan assembly 300 and the air duct assembly 400 in a straight line from back to front, and is then blown out from the air outlet 111.

[0028] As can be seen, in this embodiment, the evaporator assembly 200, the axial fan assembly 300, and the duct assembly 400 are arranged in a straight line between the air inlet 131 and the air outlet 111, resulting in a simple structure that is easy to assemble. Furthermore, the airflow moves horizontally within the housing 100, resulting in a shorter flow path and lower wind resistance, which significantly increases airflow and reduces noise. Preferably, in this embodiment, the centerline of the air outlet 111 is positioned above the centerline of the air inlet 131 in the vertical direction.

[0029] In this embodiment, the housing 100 includes an upper panel 110, a lower panel 120, an upper back panel 130, a lower surrounding panel 140, and a base 150. The upper panel 110 and the lower panel 120 are vertically distributed and connected, the upper back panel 130 and the lower surrounding panel 140 are vertically distributed and connected, the upper panel 110 and the upper back panel 130 cover each other in the front-back direction, the lower panel 120 and the lower surrounding panel 140 cover each other in the front-back direction, and the base 150 connects to and supports the bottom ends of the lower panel 120 and the lower surrounding panel 140. An air inlet 131 is opened on the upper back panel 130, and an air outlet 111 is opened on the upper panel 110.

[0030] It is understood that the evaporator assembly 200, the axial fan assembly 300, and the duct assembly 400 are sequentially arranged between the upper back panel 130 and the lower enclosure panel 140. The air conditioning unit 10 also includes an electrical control box 500, which is disposed between the lower panel 120 and the lower enclosure panel 140 and is connected and fixed to the lower enclosure panel 140. In another embodiment, the electrical control box 500 can also be connected and fixed to the lower panel 120.

[0031] Furthermore, in order to improve the overall structural stability, the air conditioner cabinet 10 provided in this embodiment also includes a support member 600. The support member 600 is located inside the housing 100, erected on the base 150, and connected to the lower enclosure 140.

[0032] Please refer to the following: Figure 6 and Figure 7 , Figure 6The diagram shows the connection structure between the upper back panel 130 and the lower side panel 140. Figure 7 As shown Figure 6 An enlarged schematic diagram of region A in the middle.

[0033] In this embodiment, the upper back panel 130 and the lower surrounding panel 140 are detachably connected, and the upper panel 110 and the lower panel 120 can also be detachably connected. Specifically, in this embodiment, the upper back panel 130 includes an upper surrounding panel 132 and a top panel 133 connected to each other, and an air inlet 131 is opened in the upper surrounding panel 132. Specifically, the top of the upper surrounding panel 132 is connected to the left, right, and rear edges of the top panel 133, forming a cavity with the opening facing forward.

[0034] The lower panel 140 also forms a cavity with an opening facing forward. The upper panel 132 and the lower panel 140 are detachably connected, so that the cavities formed by the upper back panel 130 and the lower panel 140 are connected vertically, realizing the detachable connection between the upper back panel 130 and the lower panel 140. This reduces the assembly difficulty of the air conditioner cabinet 10 and facilitates transportation.

[0035] Preferably, the upper back plate 130 in this embodiment is an integrally formed structure. In other words, the upper circumference plate 132 and the top plate 133 are integrally formed, which can greatly improve the structural strength of the upper back plate 130 and simplify the assembly operation.

[0036] In this embodiment, the bottom of the upper panel 132 is provided with a vertically downward extending insertion block and an upper hook 1322, and the top of the lower panel 140 is provided with an insertion groove 141 and a lower hanging hole 142. The insertion block is inserted into the insertion groove 141 for positioning, and the upper hook 1322 is hung in the lower hanging hole 142. The top of the lower panel 140 is also provided with a vertically upward extending lower hook, and the bottom of the upper panel 132 is also provided with an upper hanging hole 1323, in which the lower hook is hung. The upper panel 132 and the lower panel 140 are positioned by the insertion of the insertion block into the insertion groove 141, and the upper panel 132 and the lower panel 140 are initially connected and fixed by the hanging of the upper hook 1322 into the lower hanging hole 142 and the lower hook into the upper hanging hole 1323.

[0037] Furthermore, the bottom of the upper enclosure 132 is provided with a vertically downward extending upper connecting block 1324, which has an upper connecting hole 1325. The top inner side of the lower enclosure 140 is provided with a lower stud, and the upper connecting hole 1325 and the lower stud are aligned in the front-back direction and fixedly connected by screws. Preferably, in this embodiment, there are multiple plug-in blocks, which are distributed at intervals around the bottom periphery of the lower enclosure 140. At least some of the plug-in blocks are fixed to the groove wall of the plug-in groove 141 by screws, thereby achieving a stable and reliable locking and fixing between the upper enclosure 132 and the lower enclosure 140.

[0038] Please refer to the following: Figure 8 , Figure 8 The diagram shown is an exploded view of the connection structure between the upper panel 132 and the filter assembly 700.

[0039] The air conditioner unit 10 also includes a filter assembly 700, which is detachably installed at the air inlet 131 on the upper panel 132, facilitating the removal, cleaning, and maintenance of the filter assembly 700. The filter assembly 700 is used to filter the airflow passing through the air inlet 131 to prevent external dust, insects, and other substances from entering the interior of the housing 100.

[0040] Specifically, the filter assembly 700 includes a filter grille 710 and a filter 720. The filter grille 710 has downward-facing grille hooks 711 on both its left and right sides, and a protruding insert 712 at its bottom end. The upper panel 132 has corresponding hanging grooves 1326 on both sides of the air inlet 131, and an insertion hole 1327 at the bottom end of the air inlet 131.

[0041] When installing the filter grille 710 onto the upper panel 132, simply align the grille hooks 711 on both sides of the filter grille 710 and insert them into the corresponding mounting slots 1326. In this state, the insert 712 at the bottom of the filter grille 710 aligns with the insertion hole 1327. Then, apply force to make the filter grille 710 slide downwards until the insert 712 is inserted into the insertion hole 1327. When the insert 712 is fully inserted into the insertion hole 1327, the multiple grille hooks 711 and their respective mounting slots 1326 are engaged, preventing the filter grille 710 from separating from the upper panel 132 in a direction away from it.

[0042] Furthermore, a sliding buckle 713 is slidably provided on the bottom of the rear surface of the filter grille 710, and a corresponding sliding buckle mating groove 1328 is provided on the upper plate 132, which can slide left and right. One side of the top wall of the sliding mating groove 1328 has an upward-facing notch, the size of which is smaller than the travel length of the sliding buckle 713 that allows it to slide left and right, but at least large enough for the sliding buckle 713 to slide upwards. When the filter grille 710 slides downwards until the insert 712 is inserted into the insertion hole 1327, the sliding buckle 713 is embedded in the sliding buckle mating groove 1328, and can slide left and right within the sliding buckle mating groove 1328 to a locked or unlocked state. When it is necessary to disassemble the filter grille 710, the sliding buckle 713 is slid to the unlocked state, and the grille filter 720 can be slid upwards under force until the insert 712 exits the insertion hole 1327, and the grille hook 711 disengages from the hanging groove 1326.

[0043] In this embodiment, a filter groove for receiving the filter 720 is formed between the filter grid 710 and the upper surrounding plate 132, and the filter groove has an opening on one side in the left-right direction. In practical applications, the filter 720 can slide into or out of the filter groove through the opening. That is, the filter 720 can be installed or removed without disassembling the filter grid 710.

[0044] To facilitate user installation and removal of the filter 720, in this embodiment, a handle groove 721 is provided on one side edge of the filter 720 corresponding to the filter groove opening.

[0045] In this embodiment, at least one side wall of the lower enclosure 140 is provided with a pipe passage hole 143 for the pipe to pass through. A knockout plate 1431 is provided inside the pipe passage hole 143. The periphery of the knockout plate 1431 can be subjected to force and break against the wall of the pipe passage hole 143, thereby exposing the pipe passage hole 143. Preferably, in this embodiment, the left side wall, right side wall and rear side wall of the lower enclosure 140 are provided with pipe passage holes 143, so that the user can select pipe passage holes 143 in different directions for pipe laying according to actual application conditions.

[0046] In practical applications, after the user removes the knockout plate 1431 inside a pipe hole 143 and completes the pipe laying, a rodent-proof plate can be installed to seal the gap between the pipe and the pipe hole 143.

[0047] Please refer to the following: Figure 9 , Figure 9 The image shown is a sectional view of the upper panel 132.

[0048] In this embodiment, the front ends of both the left and right sides of the upper panel 132 are provided with inwardly folded upper edges 134. These upper edges 134 are used to connect the upper panel 110, the air duct assembly 400, and the evaporator assembly 200. In this embodiment, the thickness of the upper edges 134 is approximately equal to that of the upper panel 132, ensuring the structural strength of the upper edges 134, preventing deformation, and improving the connection stability and reliability of the upper panel 110, the air duct assembly 400, and the evaporator assembly 200.

[0049] The front end of the left side wall and the front end of the right side wall of the lower enclosure 140 are also provided with inwardly folded lower edges 144. The thickness of the lower edges 144 is approximately equal to the thickness of the lower enclosure 140, and is used to install the fresh air module, the electrical control box 500 and the support component 600, etc.

[0050] Please refer to the following: Figure 10 , Figure 10 The diagram shown is a structural schematic of the air conditioner unit 10 in practical application.

[0051] In this embodiment, since the upper panel 132 is a convex arc shape that protrudes backward, forming a curved surface structure that protrudes backward, the air inlet 131 is opened on the upper panel 132. On the one hand, it can obtain a larger air intake angle. Even if the air conditioner cabinet 10 is placed against the wall, a large gap can be formed between the upper panel 132 and the wall, reducing air intake resistance and increasing air volume. On the other hand, it reduces the size of the whole unit and makes the overall structure more compact.

[0052] Furthermore, in this embodiment, the base 150 has a support portion 151 and a protrusion 152 connected to each other. The lower panel 120 and the lower surrounding plate 140 are both erected on the support portion 151 and are vertically supported by the support portion 151. The protrusion 152 is located on the rear side of the support portion 151 and protrudes rearward from the lower surrounding plate 140 and the upper surrounding plate 132. Preferably, in this embodiment, the support portion 151 and the protrusion 152 are integrally formed.

[0053] In practical applications, since the protrusion 152 protrudes from the upper panel 132, when the air conditioner unit 10 is placed against the wall, even if the protrusion 152 is in contact with the wall, there is still a gap between the upper panel 132 and the wall, thus ensuring that the air in the environment can flow smoothly into the air inlet 131 through the gap, further increasing the air volume.

[0054] Please refer to the following: Figure 11 , Figure 12 and Figure 13 , Figure 11 The diagram shows the connection structure between the base 150 and the lower enclosure 140. Figure 12 The diagram shown is a structural schematic of the base plate. Figure 13 The diagram shown is a structural schematic of the lower enclosure 140.

[0055] In this embodiment, a plurality of mating protrusions 1521 are provided at intervals on the periphery of the upper surface of the support portion 151 of the base 150, and a plurality of mating grooves 145 are provided at the bottom end of the lower enclosure plate 140. The plurality of mating protrusions 1521 are embedded in the plurality of mating grooves 145 to realize the insertion and fixation of the lower enclosure plate 140 on the base 150.

[0056] Preferably, in this embodiment, multiple mating protrusions 1521 are symmetrically distributed on the left and right sides of the base 150. In other words, in practical applications, multiple mating protrusions 1521 are symmetrically distributed in the front-back direction relative to the center of gravity of the air conditioner cabinet 10, thereby ensuring that the base 150 can provide stable support for the lower enclosure 140, thereby forming balanced and stable support for various components and functional modules above the base 150.

[0057] To further enhance structural strength, in this embodiment, a connecting beam 146 is also provided on the lower enclosure 140. The connecting beam 146 spans the bottom of the opening of the lower enclosure 140, and the left and right ends of the connecting beam 146 are respectively connected to the left and right side walls at the bottom of the lower enclosure 140.

[0058] Understandably, since the cross-section of the lower enclosure 140 is roughly C-shaped, the structural strength at its front opening is relatively weak, especially at the bottom of the opening connected to the base 150, where deformation is highly likely. In this embodiment, by providing a connecting beam 146 to connect the left and right side walls at the bottom of the opening of the lower enclosure 140, the strength of the bottom of the lower enclosure 140 can be significantly improved, preventing deformation of the lower enclosure 140 and ensuring the overall structural stability.

[0059] In this embodiment, the bottom of the support member 600 is connected to the front area of ​​the support portion 151 of the base 150, and the top extends backward at an angle and connects to the lower enclosure 140. Specifically, it connects to the front surface of the left and right side walls of the lower enclosure 140, thereby forming a stable and reliable triangular support structure for the lower enclosure 140 and further improving the stability of the connection structure between the lower enclosure 140 and the base 150.

[0060] Please refer to the following: Figure 14 and Figure 15 , Figure 14 The figure shown is a cross-sectional view of the connection structure of the lower panel 120, the lower enclosure 140, and the base 150. Figure 15 The image shown is an enlarged schematic diagram of a portion of the area in Figure 14.

[0061] In this embodiment, the front surface of the support portion 151 of the base 150 is recessed with a panel mounting groove 1511, which extends upward to the top wall of the support portion 151. A panel locking hole 1512 is formed on the side wall of the panel mounting groove 1511 in the front-rear direction. A bottom insert plate 121 protrudes from the bottom end of the lower plate 120, and is inserted downward into the panel mounting groove 1511, and is threadedly locked to the panel locking hole 1512 by a threaded connector, which can be a screw.

[0062] Understandably, with the threaded connector passing through the bottom insert plate 121 and screwed into the panel locking hole 1512, the threaded connector extends approximately in the front-to-back direction and is approximately perpendicular to the insertion direction of the bottom insert plate 121 and the panel mounting groove 1511, providing a reliable horizontal locking effect on the lower panel 120.

[0063] It should be noted that, in addition to the bottom insert plate 121 being inserted into the panel mounting groove 1511 and the horizontal locking mechanism being used for horizontal locking, the support part 151 of the base 150 and the bottom panel 120 are also provided with a snap-fit ​​structure for vertical insertion.

[0064] Please refer to the following: Figure 16 , Figure 16 The diagram shown is an exploded view of the evaporator assembly 200.

[0065] The evaporator assembly 200 includes an evaporator bracket 210 and an evaporator 220. The evaporator bracket 210 is connected to the upper back plate 130 of the housing 100, and the evaporator 220 is mounted on the evaporator bracket 210. The evaporator 220 includes a first part 221 and a second part 222 perpendicular to the horizontal plane. The first part 221 and the second part 222 are connected at an angle to form a V-shaped structure with the opening facing the front side of the evaporator bracket 210.

[0066] In fact, the first part 221 and the second part 222 of the evaporator 220 are arranged in the left-right direction, and the planes of the first part 221 and the second part 222 are at an angle to the front-back direction. Because the first part 221 and the second part 222 of the evaporator 220 are at an angle, they can obtain a larger airflow contact area with the limited internal space of the evaporator bracket 210, resulting in higher heat exchange efficiency and better heat exchange effect for the flowing air, which can significantly improve the temperature regulation performance of the air conditioning unit 10.

[0067] Preferably, in this embodiment, the angle formed by the first part 221 and the second part 222 is greater than 90° and less than 180°. Furthermore, in this embodiment, in the left-right direction, the connection position between the first part 221 and the second part 222 is offset from the center of the air duct 411, reducing the space occupied by the evaporator 220 and making the overall structure more compact.

[0068] In this embodiment, the evaporator bracket 210 includes an upper bracket 211, a side frame 212, and a water tray 213. The upper bracket 211 is connected to the top of the side frame 212, and the water tray 213 is connected to the bottom of the side frame 212. The upper bracket 211, the side frame 212, and the water tray 213 together form a forward-facing installation space, in which the evaporator 220 is installed. The side frame 212 has a hollow structure, through which the installation space is in fluid communication with the air inlet 131 on the rear cover assembly.

[0069] To further reduce assembly difficulty and improve structural stability, in this embodiment, the upper bracket 211, side frame 212, and water tray 213 are integrally formed. In another embodiment, the side frame 212 may also be integrally formed with one of the upper bracket 211 and the water tray 213, and the other of the two may be connected to the side frame 212 by screws or clips.

[0070] In this embodiment, the left and right ends of the evaporator 220 are enclosed by the side frame 212. In other words, the end of the first part 221 away from the second part 222, and the end of the second part 222 away from the first part 221, are both enclosed by the side frame 212. Specifically, in the left-right direction, the left and right ends of the evaporator 220 are located between the left and right sides of the side frame 212; and the left and right sides of the side frame 212 protrude forward beyond the left and right ends of the evaporator 220.

[0071] Understandably, in practical applications, the left and right ends of the evaporator 220 are used to connect refrigerant pipes. The left and right ends of the evaporator 220 are wrapped by the side frame 212 to shield and protect the pipe connection positions of the evaporator 220, preventing the pipe connection positions of the evaporator 220 from being impacted during the assembly process, which could cause the interface to loosen or fall off.

[0072] Please refer to the following: Figure 17 and Figure 18 , Figure 17 The diagram shown is a schematic representation of one structure of the evaporator support 210. Figure 18 As shown Figure 17 Enlarged schematic diagram of region B in the middle.

[0073] Understandably, the drip tray 213 is used to collect condensate and discharge it into the housing 100 through the drain pipe. In this embodiment, the drip tray 213 has a bottom drain outlet 214, which is used to connect to the drain pipe. Multiple baffle posts 215 are arranged at intervals around the periphery of the bottom drain outlet 214, and a water inlet 216 is formed between any two adjacent baffle posts 215 to allow condensate to flow into the bottom drain outlet 214.

[0074] In practical applications, condensate in the water receiving tray 213 flows into the drain outlet 214 at the bottom of the tray through multiple water inlets 216, and then flows out of the housing 100 through the drain pipe connected to the drain outlet 214. During this process, multiple baffles 215 intercept and block debris in the water flow, preventing debris from passing through the water inlets 216 and flowing into the drain outlet 214 at the bottom of the tray, thus preventing blockage of the drain outlet 214. In other words, in this embodiment, by setting multiple baffles 215 around the drain outlet 214 at the bottom of the water receiving tray 213, blockage of the drain outlet 214 can be prevented, ensuring the drainage flow of the drain outlet 214 and preventing water accumulation in the water receiving tray 213.

[0075] Preferably, in this embodiment, the debris barrier 215 is integrally formed with the water receiving tray 213, and the cross-section of the debris barrier 215 is circular, which can minimize the obstruction effect on condensate water, improve the flow of condensate water, and thus improve drainage efficiency.

[0076] Please refer to the following: Figure 19 , Figure 20 , Figure 21 and Figure 22 , Figure 19 The diagram shown is a partial structural schematic of the connection structure between the evaporator bracket 210 and the upper back plate 130. Figure 20 The diagram shown is a structural schematic of the evaporator assembly 200. Figure 21 The diagram shown is a schematic diagram of another structure of the evaporator support 210. Figure 22 The diagram shown is a partial structural schematic of the upper backplate 130.

[0077] In fact, in this embodiment, the evaporator bracket 210 is detachably connected to the upper back plate 130. Specifically, the upper bracket 211 and the water receiving tray 213 of the evaporator bracket 210 are both detachably connected to the upper back plate 130. In this embodiment, the top plate 133 of the upper back plate 130 forms a slide rail 1331 extending in the front-rear direction. The two sides of the slide rail 1331 are formed by reinforcing protrusions formed by the concavity of the top plate 133. The top of the upper bracket 211 of the evaporator bracket 210 is provided with a top protrusion 2111 that slides and engages with the slide rail 1331.

[0078] When connecting the evaporator bracket 210 to the upper back plate 130, the top protrusion 2111 on the upper bracket 211 aligns with the slide rail 1331 on the top plate 133 and slides into place from front to back. The design of the slide rail 1331 provides guidance and limitation for the installation of the evaporator bracket 210, reducing the installation difficulty of the evaporator bracket 210 and improving the installation accuracy.

[0079] In this embodiment, the top protrusion 2111 is located on the front side of the upper support 211, and a top positioning post 2112 protrudes rearward from the rear side of the upper support 211. A top positioning hole 135 is provided on the top of the upper surrounding plate 132, and the top positioning post 2112 is inserted into the top positioning hole 135. In practical applications, when the top protrusion 2111 slides into position from front to back along the slide rail 1331, the top positioning post 2112 is inserted into the top positioning hole 135.

[0080] Furthermore, the top protrusion 2111 is also provided with a top locking hole, and the end wall of the slide 1331 is provided with a top stud 1332. When the top protrusion 2111 slides along the slide 1331 to contact the top stud 1332, the top locking hole on the top protrusion 2111 is aligned with the screw hole of the top stud 1332, and is locked by a screw.

[0081] The rear surface of the water tray 213 is provided with a bottom positioning hole 2131 and a bottom screw hole 2132, while the bottom inner surface of the upper plate 132 is provided with a bottom positioning post 136 and a bottom screw 137. When the top protrusion 2111 slides into place from front to back along the slide 1331, the bottom positioning post 136 on the upper plate 132 is inserted into the bottom positioning hole 2131 on the rear surface of the water tray 213, and the bottom screw 137 on the upper plate 132 contacts the rear surface of the water tray 213 and aligns with the bottom screw hole 2132, and is locked by screws.

[0082] As can be seen, in this embodiment, the connection between the evaporator bracket 210 and the upper back plate 130 is achieved through the sliding process of the top protrusion 2111 in the slide rail 1331, which enables the insertion of the top positioning hole 135 and the top positioning post 2112, the alignment of the top stud 1332 and the top locking hole, the insertion of the bottom positioning post 136 and the bottom positioning hole 2131, and the alignment of the bottom screw hole 2132 and the bottom stud 137. The connection process is convenient and quick.

[0083] Furthermore, the rear surface of the water tray 213 is also provided with a stop rib, which abuts against the upper back plate 130, thereby reducing the contact area between the bottom of the evaporator bracket 210 and the upper back plate 130, reducing abnormal noise, and achieving the effect of noise reduction.

[0084] Please refer to the following: Figure 23 and Figure 24 , Figure 23 The image shown is a cross-sectional view of the evaporator assembly 200. Figure 24 As shown Figure 23 An enlarged schematic diagram of a portion of the image.

[0085] A fixing plate 2133 is provided on the front side of the water receiving tray 213, and the fixing plate 2133 is connected to the air duct panel 410 of the air duct assembly 400. Specifically, the fixing plate 2133 is provided with a plate positioning post 2134, which is used to insert into the air duct panel 410. In addition, the surface of the fixing plate 2133 is also provided with a plate stud 2135, which is used to connect and fix to the air duct panel 410 with screws. By providing the fixing plate 2133, and providing the plate stud 2135 and the plate positioning post 2134 on the fixing plate 2133, the stability of the connection between the water receiving tray 213 and the air duct panel 410 can be improved.

[0086] Furthermore, in this embodiment, the water receiving tray 213 also includes a baffle plate 217, which is connected to the bottom wall of the water receiving tray 213 and is located behind the fixing plate 2133. By setting the baffle plate 217, it is possible to ensure that the water receiving tray 213 can still meet the normal water receiving and drainage needs after the fixing plate 2133 is accidentally damaged, thus effectively improving the problem of condensate overflow.

[0087] Furthermore, in order to further enhance the structural strength of the fixing plate 2133, in this embodiment, a reinforcing plate 2171 is also provided between the fixing plate 2133 and the water baffle 217, and the fixing plate 2133 is connected to the water baffle 217 through the reinforcing plate 2171.

[0088] Please refer to the following: Figure 25 , Figure 26 , Figure 27 and Figure 28 , Figure 25 As shown Figure 23 An enlarged diagram of another part of the area, Figure 26 The diagram shows another possible structure of the evaporator support 210. Figure 27 As shown Figure 26 Enlarged diagram of a portion of the area. Figure 28 As shown Figure 21 An enlarged schematic diagram of a portion of the image.

[0089] In this embodiment, a support plate 2121 is provided at the bottom of the side frame 212, and the support plate 2121 is located above the inside of the water receiving tray 213. A first baffle plate 2122 and a water guiding structure 2123 are protruding from the upper surface of the support plate 2121. Both the first baffle plate 2122 and the water guiding structure 2123 support the bottom of the evaporator 220, ensuring the stability of the evaporator 220. At least two water guiding structures 2123 are arranged alternately along the length of the support plate 2121, with the first baffle plate 2122 positioned between two adjacent water guiding structures 2123. Furthermore, the first baffle plate 2122 is located in front of the water guiding structure 2123 and has a gap with the water guiding structure 2123 in the front-rear direction; that is, the first baffle plate 2122 is closer to the air outlet 111 than the water guiding structure 2123.

[0090] In practical applications, the condensate generated on the evaporator 220 flows downwards to the support plate 2121. The water guiding structure 2123 guides the flow of condensate on the support plate 2121 so that it can be discharged between the two spaced water guiding structures 2123. Since a first baffle 2122 is provided between two adjacent water guiding structures 2123, the first baffle 2122 can prevent airflow from passing directly through the gap between the two water guiding structures 2123. This can effectively reduce the amount of airflow that passes directly through the evaporator support 210 without passing through the evaporator 220 for heat exchange. While effectively improving the condensate discharge effect, the heat exchange effect is also improved.

[0091] There are multiple first wind deflectors 2122, which are arranged sequentially at intervals along the length of the support plate 2121. A drainage gap 2124 is formed between any two adjacent first wind deflectors 2122, so that the condensate between the two water guiding structures 2123 can flow into the water receiving tray 213 below the support plate 2121 through the drainage gap 2124 between the two adjacent first wind deflectors 2122.

[0092] In this embodiment, the water guiding structure 2123 includes a connecting rib 2125 and a water guiding rib 2126. Both the connecting rib 2125 and the water guiding rib 2126 are connected to the support plate 2121, and the length of the connecting rib 2125 extends in the airflow direction and points towards the drainage gap 2124. One end of the water guiding rib 2126 is connected to the connecting rib 2125, and multiple water guiding ribs 2126 are symmetrically distributed on both sides of the connecting rib 2125. The distance between any two symmetrically distributed water guiding ribs 2126 gradually increases from the end closer to the connecting rib 2125 to the end farther away from the connecting rib 2125, and the end of the water guiding rib 2126 farther away from the connecting rib 2125 is closer to the first windbreak plate 2122, and its vertical projection in the airflow direction is on the corresponding first windbreak.

[0093] In this embodiment, a second baffle plate 2127 is also protruding from the upper surface of the support plate 2121. The second baffle plate 2127 is located on the air inlet side of the side frame 212. In the airflow direction, multiple water guiding structures 2123 are located between the second baffle plate 2127 and the first baffle plate 2122. The height of the second baffle plate 2127 is greater than the height of the water guiding structure 2123, which can block the gap between the evaporator 220 and the water guiding structure 2123, reduce the amount of air passing directly through the gap between the evaporator 220 and the water guiding structure 2123, and further improve the heat exchange efficiency.

[0094] To improve drainage efficiency, in this embodiment, the support plate 2121 is inclined, and its height gradually decreases from the end near the air inlet 131 to the end near the air outlet 111. That is, the height of the support plate 2121 gradually decreases from the end connected to the second baffle plate 2127 to the end connected to the first baffle plate 2122, so that the condensate on the support plate 2121 can be quickly discharged to the air outlet side under the guidance of the support plate 2121, thereby improving the condensate drainage efficiency.

[0095] Furthermore, a water passage hole 2128 is provided at the bottom edge of the side frame 212, and the height of the water passage hole 2128 is lower than the height of the edge of the drip tray 213. The condensate entering the drip tray 213 can flow from the rear side of the side frame 212 to the front side through the water passage hole 2128, ensuring that the condensate in the drip tray 213 can be smoothly discharged from the drain outlet 214 at the bottom of the tray, preventing the condensate in the drip tray 213 from being blocked by the side frame 212 and unable to be discharged smoothly.

[0096] Furthermore, the bottom edge of the side frame 212 and the surface of the water tray 213 also have a water passage gap 2129, which further improves the drainage efficiency and forms a blocking effect on the dirt in the water tray 213, reducing the risk of blockage of the drain outlet 214 at the bottom of the tray.

[0097] In practical applications, downward-sloping water guide ribs can also be installed on the outer side wall of the side frame 212 to accelerate the downward flow of condensate on the side frame 212 into the water receiving tray 213, thereby further improving the condensate discharge efficiency.

[0098] Please refer to the following: Figure 29 , Figure 30 and Figure 31 , Figure 29 As shown Figure 20 Enlarged diagram of the central area Figure 30 The diagram shows the connection structure between the water receiving tray 213 and the pressure plate structure 800. Figure 31 As shown Figure 21 An enlarged schematic diagram of another part of the area.

[0099] In this embodiment, a pipe groove 218 for the pipeline of the evaporator 220 is provided on the front side of the water receiving tray 213. A pressure climbing structure 800 is installed in the pipe groove 218. The pressure climbing structure 800 is opposite to the groove wall of the pipe groove 218. The pressure climbing structure 800 has an arc-shaped wall surface that is adapted to the outer wall of the pipeline.

[0100] In practical applications, the pipe assembly 223 connecting the evaporator 220 passes through the pipe groove 218. The pressure plate structure 800 is connected to the water receiving pan 213 to press and fix the pipe assembly 223. Since the pressure plate structure 800 has an arc-shaped wall surface that is adapted to the outer wall of the pipe assembly 223, it can fit tightly with the outer wall of the pipe assembly 223 and has good sealing performance, so there is no need to add a sealing element.

[0101] In this embodiment, the wall of the through-slot 218 includes a first arc-shaped wall 2181 and a second arc-shaped wall 2182. One end of the first arc-shaped wall 2181 and one end of the second arc-shaped wall 2182 are connected to form a middle protrusion structure. The arc-shaped wall surface of the pressure climbing structure 800 includes a first arc-shaped wall surface 810 corresponding to the first arc-shaped wall 2181 and a second arc-shaped wall surface 820 corresponding to the second arc-shaped wall 2182. The first arc-shaped wall surface 810 and the first arc-shaped wall 2181 generally enclose a circular channel for one of the pipelines in the pipeline assembly 223 to pass through. The second arc-shaped wall surface 820 and the second arc-shaped wall 2182 generally enclose a circular channel for another pipeline in the pipeline assembly 223 to pass through.

[0102] The first arc-shaped wall 810 and the second arc-shaped wall 820 are connected to form a middle protrusion structure. Together with the middle protrusion structure between the first arc-shaped groove wall 2181 and the second arc-shaped groove wall 2182, they can block the two circular channels and prevent the pipelines running through the two circular channels from contacting each other, causing collision damage and heat exchange problems.

[0103] Furthermore, in this embodiment, the pipe assembly 223 has a water return bend structure 224 formed above the water receiving tray 213, that is, it has a convex arc segment protruding towards the water receiving tray 213. In practical applications, when the condensate on the surface of the pipe assembly 223 flows downward, the water return bend structure 224 will drip directly into the water receiving tray 213, thereby preventing the condensate from flowing along the pipe assembly 223 into the pipe groove 218 and causing leakage.

[0104] The water tray 213 has a vertically extending wire channel 2136 on the side near the air inlet 131, and a wire harness structure 230 is provided at the bottom of the side frame 212 near the air outlet 111. In practical applications, a temperature sensor can be installed on the side frame 212, the wire harness structure 230 is used to fix the wire harness of the temperature sensor, and the wire channel 2136 is also used for the wire harness of the temperature sensor to pass through. The wire harness of the temperature sensor passes through the wire harness structure 230 and the wire channel 2136 in sequence.

[0105] In this embodiment, the height of the wire harness structure 230 is lower than the height of the top of the wire groove 2136. When the temperature sensor wire harness enters the wire groove 2136 after passing through the wire harness structure 230, the wire harness can form a water return bend between the wire harness structure 230 and the wire groove 2136. This allows the water on the temperature sensor wire harness to collect in the water return bend and fall into the water receiving tray 213, preventing the condensate on the wire harness from dripping.

[0106] The air conditioner unit 10 also includes an electric heating device 900, which is mounted on the evaporator bracket 210 and located in front of the evaporator 220. Specifically, the heating device includes an electric heating 910 bracket mounted on the water tray 213 or the upper bracket 211, and an electric heating 910 mounted on the electric heating 910 bracket.

[0107] Please refer to the following: Figure 32 , Figure 33 and Figure 34 , Figure 32 The diagram shows the connection structure between the electric heating device 900 and the evaporator support 210. Figure 33 The diagram shown is a structural schematic of the water receiving tray 213. Figure 34 The diagram shown is a structural schematic of the 910 electric heating bracket.

[0108] In this embodiment, the electric heating 910 bracket is located on the side of the evaporator 220 near the air outlet 111, and the electric heating 910 bracket includes a first bracket 920 located above and connected to the water receiving tray 213, and a second bracket 930 located below and connected to the upper bracket 211. The first bracket 920 and the second bracket 930 are provided with a plurality of mounting positions 940 that are one above the other. A plurality of electric heaters 910 are respectively erected between the first bracket 920 and the second bracket 930, and the bottom end of any electric heater 910 is connected to a mounting position 940 on the first bracket 920, and the top end is connected to the corresponding mounting position 940 on the second bracket 930.

[0109] In this embodiment, the mounting position 940 is used for plugging and fixing the power supply heater 910, and the mounting position 940 has an electric heating locking hole 941, through which a screw is passed to lock the electric heating heater 910. Preferably, in this embodiment, the first bracket 920 is detachably connected to the water receiving tray 213, and the second bracket 930 is detachably connected to the upper bracket 211, which facilitates the assembly and disassembly of the electric heating heater 910 bracket and the electric heating heater 910.

[0110] Since the first bracket 920 and the second bracket 930 have multiple mounting positions 940, in practical applications, the number of electric heaters 910 can be selected according to the actual application conditions and installed in different mounting positions 940 to meet different heating requirements. Furthermore, since the bottom of the electric heater 910 is fixed by the first bracket 920 and the top is fixed by the second bracket 930, the stability of the electric heater 910 mounting structure is ensured.

[0111] In this embodiment, both the first bracket 920 and the second bracket 930 are arc-shaped, which on the one hand adapts to the V-shaped evaporator 220, and on the other hand ensures that the spacing between each electric heater 910 installed on the first bracket 920 and the evaporator 220 is uniform, thereby obtaining a better heating effect and ensuring the uniformity of the outlet air temperature.

[0112] The upper surface of the water tray 213 is provided with a hollow bracket insertion post 240. The bottom of the first bracket 920 is provided with a bracket insertion part 921 corresponding to the bracket insertion post 240, and the side wall of the bracket insertion post 240 is also provided with a through hole for screws to pass through. After the first bracket 920 is inserted into the bracket insertion post 240 through the bracket insertion part 921, the bracket insertion part 921 and the bracket insertion post 240 are locked together by screws. The assembly operation is simple and the assembly structure is stable and reliable. Similarly, the second bracket 930 can also be positioned and assembled with the upper bracket 211 by insertion, and then fastened and locked with screws.

[0113] Preferably, in this embodiment, there are multiple bracket insertion posts 240 and bracket insertion parts 921, with each bracket insertion part 921 corresponding to another bracket insertion part 921, enabling precise and reliable positioning of the electric heating device 900. In practical applications, the height of the first bracket 920 can be set lower than the height of the side wall of the water receiving tray 213, thereby reducing the degree to which the first bracket 920 obstructs airflow and improving the air outlet effect. Alternatively, ventilation holes can be opened on the first bracket 920 and the second bracket 930 to allow airflow to pass through, thereby reducing wind resistance.

[0114] Please refer to the following: Figure 35 and Figure 36 , Figure 35 The diagram shows the connection structure between the axial flow fan assembly 300 and the duct assembly 400. Figure 36 The diagram shown is an exploded view of the connection structure between the axial flow fan assembly 300 and the duct assembly 400.

[0115] In this embodiment, the axial fan assembly 300 includes a motor bracket 310, a motor 320, and an axial fan blade 330. The motor bracket 310 is located between the evaporator assembly 200 and the air duct assembly 400 and is connected to the air duct assembly 400. The motor 320 is mounted on the motor bracket 310 and is connected to the axial fan blade 330.

[0116] Preferably, the motor bracket 310 includes two parallel vertical support columns and a plurality of horizontal connecting columns connected between the two vertical support columns. The plurality of horizontal connecting columns are arranged at intervals in the vertical direction, and the two horizontal connecting columns at both ends of the arrangement are connected to the air duct panel 410.

[0117] Understandably, the two vertical support columns support the motor 320 and the axial fan blade 330, while multiple horizontal connecting columns provide tensile support to the two vertical support columns, ensuring the overall structural stability of the motor bracket 310.

[0118] The air duct assembly 400 includes an air duct panel 410 and an air outlet screen 420. The air duct panel 410 has an air duct baffle 470 on its air inlet side. The air duct baffle 470 is connected to the front side of the evaporator bracket 210 and forms a peripherally sealed heat exchange chamber. The air duct panel 410 includes an air duct 411 that communicates with the heat exchange chamber and is used for ventilation. The air duct 411 passes through the air duct baffle 470 and extends to the air outlet side of the air duct panel 410. The motor bracket 310 is connected to the air inlet side of the air duct panel 410. An axial fan blade 330 is located within the air duct 411 and is coaxially arranged with the air duct 411. The air outlet screen 420 is connected to the air outlet side of the air duct panel 410 and covers the end of the air duct 411 away from the axial fan assembly 300.

[0119] In this embodiment, the wiring of the electric heater 910 is led from the wire clamps on the upper bracket 211 to the gap between the upper bracket 211 and the top plate 133 of the upper back plate 130, then forward through the wiring channel on the air duct panel 410 to the space between the air duct panel 410 and the air outlet screen 420, and then through the wire clamps formed by the cooperation of the air duct panel 410 and the air outlet screen 420 to the lower electrical control box 500, thus completing the wiring arrangement of the electric heater 910. Since the wire clamps are formed by the cooperation of the air duct panel 410 and the air outlet screen 420, the need for additional wire clips or cable ties is eliminated, reducing production costs and assembly difficulty, and improving the compactness of the internal structure.

[0120] In this embodiment, the motor bracket 310 is installed on the air inlet side of the air duct panel 410. This improves the structural compactness of the air conditioner unit 10 and reduces assembly difficulty. Furthermore, it allows for better control of the coaxiality between the axial fan blade 330 and the air duct 411, resulting in better air delivery. It should be noted that in the air conditioner unit 10 provided in this embodiment, the number of axial fan blades 330, air inlet 131, and air outlet 111 is only one. This reduces the number of components and simplifies the structure while ensuring air delivery performance, thus improving the structural compactness of the air conditioner unit 10.

[0121] Furthermore, in order to further improve the air supply effect, in this embodiment, the rotation center line of the axial fan blade 330 coincides with the center line of the air outlet 111.

[0122] Please refer to the following: Figure 37 , Figure 37 As shown Figure 35 A magnified view of region C in the middle.

[0123] In this embodiment, the duct partition 470 has a protruding lower mounting portion 412, which is located below the duct 411. The bottom end of the motor bracket 310 is connected to the lower mounting portion 412. Furthermore, the lower mounting portion 412 has a central hollow portion 4121, which extends vertically through the lower mounting portion 412. The duct 411 is in fluid communication with the area below the lower mounting portion 412 through the central hollow portion 4121.

[0124] In practical applications, when the fan drives the axial flow fan blades 330 to rotate in the air duct 411, a negative pressure is generated at the end of the air duct 411 near the motor bracket 310. Air in the area of ​​the heat exchange chamber directly facing the air duct 411 can flow directly into the air duct 411, while air in the area below the lower mounting part 412 can flow quickly into the air duct 411 through the middle hollow part 4121 provided on the lower mounting part 412. This reduces the impact of the connection structure between the motor bracket 310 and the air duct panel 410 on the air intake of the air duct 411, thereby improving the air volume and air delivery efficiency.

[0125] Specifically, the lower mounting part 412 has an upward-facing positioning slot 4122 that extends in the left-right direction. The bottom end of the motor bracket 310 is inserted into the positioning slot 4122, and the positioning slot 4122 provides support for the motor bracket 310 and limits its movement in the front-back direction.

[0126] The motor bracket 310 has side flanges 311 formed by folding on both the left and right sides. The two side flanges 311 cover at least a portion of the left and right ends of the lower mounting part 412. The two side flanges 311 of the motor bracket 310 clamp and position the left and right ends of the lower mounting part 412, thereby limiting the left and right direction of the motor bracket 310.

[0127] Please refer to the following: Figure 38 , Figure 38 As shown Figure 35 A magnified diagram of region D in the middle.

[0128] The air duct partition 470 is also provided with an upper mounting part 413, which is located above the air duct 411. The upper mounting part 413 is provided with a limiting post 4131. The top of the motor bracket 310 is provided with a bracket limiting hole 312. The limiting post 4131 is inserted into the bracket limiting hole 312 to achieve positioning of the top of the motor bracket 310.

[0129] Specifically, the limiting post 4131 protrudes from the upper surface of the upper mounting part 413, the top of the motor bracket 310 is folded to form a top flange 313, the top flange 313 is hooked to the upper mounting part 413, and the bracket limiting hole 312 is provided through the top flange 313.

[0130] During the actual assembly process, the bottom end of the motor bracket 310 is aligned and inserted into the positioning slot 4122 on the lower mounting part 412. After the insertion is completed, the top flange 313 of the motor bracket 310 is hung on the upper mounting part 413, and the protruding limiting post 4131 on the upper mounting part 413 is inserted into the bracket limiting hole 312 to achieve positioning of the top of the motor bracket 310.

[0131] Similarly, the side flanges 311 on both sides of the motor bracket 310 also cover at least a portion of the left and right ends of the upper mounting portion 413. It can be understood that the side flanges 311 on both sides of the motor bracket 310 extend vertically, the bottom of the two side flanges 311 cover the left and right ends of the lower mounting portion 412 respectively, and the top of the two side flanges 311 cover the left and right ends of the upper mounting portion 413 respectively.

[0132] To further improve the stability of the connection structure between the motor bracket 310 and the air duct panel 410, in this embodiment, the top and bottom ends of the motor bracket 310 are also connected to the air duct panel 410 through threaded connectors to lock the motor bracket 310 on the air duct panel 410. The threaded connectors can be screws.

[0133] In this embodiment, the top of the duct baffle 470 is attached to and connected to the front surface of the upper bracket 211 of the evaporator bracket 210, the bottom of the duct baffle 470 is attached to and connected to the front surface of the water receiving tray 213, and the left and right edges of the duct baffle 470 are sealed to the front end of the side frame 212, thereby forming a peripherally sealed heat exchange chamber.

[0134] To reduce assembly difficulty and improve assembly efficiency and accuracy, in this embodiment, positioning and fitting structures are provided between the top of the air duct baffle 470 and the upper support 211, and between the bottom of the air duct baffle 470 and the water receiving tray 213.

[0135] Furthermore, the top of the duct partition 470 is locked to the upper bracket 211, and the bottom of the duct partition 470 is locked to the water receiving tray 213 by threaded connectors, which can be screws.

[0136] Please refer to the following: Figure 39 and Figure 40 , Figure 39 The diagram shown is a cross-sectional view of the connection structure of the evaporator bracket 210, the air duct panel 410, and the motor bracket 310. Figure 40 As shown Figure 39 A magnified view of region E in the middle.

[0137] In this embodiment, a first clearance groove 2113 is provided on the front side of the bottom wall of the upper support 211 of the evaporator support 210, and the top of the motor support 310 is embedded in the first clearance groove 2113.

[0138] The first clearance groove 2113 provides clearance for the motor bracket 310 in the front-rear direction. On the one hand, it allows the vertical projection of the motor bracket 310 in the installed state to be inside the water collection tray 213, so that the condensate generated on its surface can flow downward into the water collection tray 213 to collect the condensate generated by the motor bracket 310. On the other hand, it effectively compresses the dimensions of the connection structure of the evaporator bracket 210, motor bracket 310 and air duct panel 410 in the front-rear direction, avoiding the axial fan assembly 300 occupying too much space in the front-rear direction, thereby improving the compactness of the internal structure of the air conditioner cabinet 10.

[0139] Please refer to the following: Figure 41 , Figure 41 As shown Figure 5 A magnified diagram of region F in the middle.

[0140] In this embodiment, a sealing flange 414 protrudes from the side of the air duct baffle 470 facing the evaporator bracket 210 and corresponding to the outer periphery of the air duct 4111, and the length of the sealing flange 414 extends vertically. Sealing step portions 250 extending vertically are provided on both the left and right sides of the front side of the side frame 212, that is, two sealing step portions 250 are respectively provided on the front two sides of the side frame 212, and the two sealing flanges 414 and the two sealing step portions 250 are respectively sealed and fitted together.

[0141] The sealing flanges 414 protruding from the left and right edges of the duct baffle 470 overlap with the sealing steps 250 on the left and right sides of the front side of the evaporator bracket 210, forming a smaller heat exchange chamber. In particular, the control of the dimensions of the heat exchange chamber in the front-to-back direction significantly improves space utilization. Furthermore, the formation of the heat exchange chamber prevents the airflow after heat exchange in the evaporator 220 from stagnating outside the duct 411, improving air delivery efficiency.

[0142] Specifically, the distance between the two sealing flanges 414 gradually increases in the left-right direction from the direction away from the evaporator support 210 to the direction closer to it. In other words, the distance between the two sealing flanges 414 gradually increases in the front-to-back direction, forming a flared structure that expands to the left and right sides.

[0143] The sealing step portion 250 includes an overlapping wall 251 and a limiting wall 252 connected at an angle. A sealing flange 414 overlaps the outer side of the overlapping wall 251, and the end of the sealing flange 414 away from the air duct partition 470 contacts the limiting wall 252. The distance between the two overlapping walls 251 in the left-right direction gradually decreases from away from to closer to the air duct panel 410. Preferably, the end of the overlapping wall 251 away from the limiting wall 252 contacts the air duct partition 470.

[0144] In other words, in this embodiment, the front ends of the two overlapping walls 251 are inclined towards the heat exchange chamber. When the duct panel 410 is connected to the evaporator bracket 210, the two sealing flanges 414 on the duct panel 410 can slide along the outer surface of the corresponding overlapping wall 251, realizing rapid positioning and assembly of the duct panel 410, reducing assembly difficulty, and improving assembly accuracy and efficiency. Furthermore, the sealing flanges 414 overlap the outer side of the overlapping wall 251, forming a double-layer sealing structure, thereby achieving a better sealing effect.

[0145] Preferably, the rear end of the sealing flange 414 contacts the limiting wall 252 to form a sealing structure, and the front end of the overlapping wall 251 contacts the surface of the air duct partition 470 to form a sealing structure. That is, the sealing flange 414 and the sealing step form a two-stage seal, which further improves the sealing effect of the heat exchange chamber.

[0146] In this embodiment, the overlapping wall 251 includes a first guide wall 2512 and a second guide wall 2513. The second guide wall 2513 is connected to the front end of the first guide wall 2512 and is connected to the first guide wall 2512 at an angle. The first guide wall 2512 is parallel to the sealing flange 414, and the front end of the second guide wall 2513 is in contact with the surface of the air duct partition 470. The second guide wall 2513 and the sealing flange 414 are set at an angle to form a heat insulation cavity 253 between the overlapping wall 251 and the sealing flange 414.

[0147] The heat insulation cavity 253 is located at the transition position between the internal low temperature region and the external relatively high temperature environment, playing a heat insulation role similar to an air barrier. This effectively reduces the possibility that the external humid air will rapidly cool down to below the dew point due to contact with the low temperature component, thereby inhibiting the formation of condensation at the joint.

[0148] Furthermore, the front end of the second guide wall 2513 is provided with a bent portion 2511 that bends further toward the interior of the heat exchange chamber. The bent portion 2511 contacts the air duct baffle 470 to obtain a larger contact area, which improves the stability of the connection structure and further enhances the sealing effect.

[0149] In this embodiment, the first guide wall 2512 and the sealing flange 414 are parallel and in contact with each other or spaced apart. When they are spaced apart, the narrow gap formed between the first guide wall 2512 and the sealing flange 414 can effectively suppress air convection and enhance the heat insulation effect of the heat insulation cavity 253. The angle between the second guide wall 2513 and the sealing flange 414 makes the cavity structure with the front and rear steps not only extend the heat transfer path, but also achieve the dual function of thermal bridge blocking and stress buffering through geometric shape control.

[0150] In this embodiment, the air duct baffle 470 has an air inlet surface 415 and a water guide surface 416 that are distributed and connected vertically. The water guide surface 416 is inclined from the end that is close to the air inlet surface 415 to the end that is far away from the evaporator bracket 210, that is, it is inclined forward. The air duct 411 is disposed on the air inlet surface 415.

[0151] In practical applications, as the condensate generated on the air duct panel 410 flows downward, it can flow into the water receiving tray 213 through the water guide surface 416, preventing condensate dripping.

[0152] To further improve the air delivery efficiency of the air duct 411, in this embodiment, the air duct 411 includes an air guide ring 4111 disposed at one end near the evaporator support 210 as the starting section. The end of the air guide ring 4111 near the evaporator support 210 is an air inlet opening, which is formed on the air duct partition 470. The cross-sectional area of ​​the air guide ring 4111 gradually increases from the direction away from the evaporator support 210 to the direction near the evaporator support 210. It can be understood that the cross-section of the air guide ring 4111 is a section perpendicular to the airflow direction.

[0153] In other words, the air guide ring 4111 forms a flared structure at the inlet of the air duct 411, which can significantly increase the angle at which the airflow in the heat exchange chamber flows into the air duct 411, thereby increasing the air volume and obtaining a better air delivery effect. Furthermore, the air guide ring 4111 gradually contracts from the end furthest from the air duct 411 to the end closest to the air duct 411, which can achieve concentrated air delivery to the air duct 411, increase the airflow velocity, and thus obtain a longer air outlet distance.

[0154] Please refer to the following: Figure 42 and Figure 43 , Figure 42 The image shown is a structural schematic diagram of the air duct panel 410 from one perspective. Figure 43 The diagram shown is a structural schematic of the air duct panel 410 from another perspective.

[0155] In this embodiment, the end of the air guide ring 4111 furthest from the air duct 411 is elliptical, and from the end furthest from the air duct 411 to the end closest to the air duct 411, the cross-section of the air guide ring 4111 gradually changes from elliptical to circular. That is, the end of the air guide ring 4111 connected to the air duct 411 is circular, and the cross-section of the air duct 411 is also circular. Similarly, the cross-section of the air duct 411 refers to the section of the air duct 411 perpendicular to the airflow direction, and also refers to the section perpendicular to its axis.

[0156] In this embodiment, the major axis of the elliptical opening of the air guide ring 4111 extends vertically, and the minor axis extends horizontally, thereby maximizing the dimensions of the major and minor axes within a limited space and increasing the air guiding angle of the air guide ring 4111. It is understood that the minor axis of the elliptical opening of the air guide ring 4111 is also larger than the diameter of the air duct 411.

[0157] Please refer to the following: Figure 44 and Figure 45 , Figure 44 The diagram shown is an exploded view of the air duct assembly 400. Figure 45 The image shown is a cross-sectional view of the air duct assembly 400.

[0158] The air duct assembly 400 also includes an air outlet frame 430 and an insulation felt 440. The rear side of the air outlet mesh cover 420 is the windward side, which is connected to the air outlet side of the air duct panel 410. The front side of the air outlet mesh cover 420 is the air supply side, which is connected to the air outlet frame 430. The insulation felt 440 wraps around the periphery of the air outlet mesh cover 420 and the air outlet frame 430. In practical applications, the airflow from the air duct 411 passes through the air outlet mesh cover 420 and the air outlet frame 430 in sequence, and is then blown out from the air outlet 111.

[0159] Please refer to the following: Figure 46 , Figure 47 and Figure 48 , Figure 46 As shown Figure 45 Enlarged diagram of region G in the middle. Figure 47 The diagram shown is a structural schematic of the air duct panel 410 from another perspective. Figure 48 The diagram shown is a structural schematic of the air outlet mesh cover 420.

[0160] In this embodiment, the surface of the air outlet side of the duct panel 410 is provided with a protruding mating ring 417 surrounding the air duct 411. The mating ring 417 is sealed and inserted into the mating ribs correspondingly provided on the windward side of the air outlet screen 420. Preferably, the mating ring 417 in this embodiment is rectangular. Through the sealed insertion of the mating ring 417 and the air outlet screen 420, a peripherally sealed airflow channel is formed between the duct panel 410 and the air outlet screen 420, preventing airflow leakage.

[0161] Specifically, the ribs are segmented, consisting of two segments distributed vertically. The upper segment surrounds the top edge and the left and right sides of the rib ring 417, while the lower segment is surrounded by the bottom edge of the rib ring 417.

[0162] Furthermore, the left and right edges of the air outlet grille 420 are each equipped with a grille hook 421 for attaching to the air duct panel 410. Specifically, the left and right edges of the air duct panel 410 are each equipped with a grille holding part 418, and the grille hook 421 is attached to the grille holding part 418. By attaching the grille hook 421 on the air outlet grille 420 to the grille holding part 418 on the air duct panel 410, the air outlet grille 420 is positioned and initially fixed during installation, reducing assembly difficulty and improving assembly efficiency.

[0163] In order to lock the air outlet screen 420, the top and bottom of the air outlet screen 420 are provided with threaded connection parts 428. The threaded connection parts 428 are connected to the air duct panel 410 through threaded connectors, which can be screws.

[0164] In this embodiment, the air outlet cover 420 has a grille portion 422 through which airflow passes, and the air outlet cover 420 has a sealing rib protruding on its air supply side surface, the sealing rib being arranged around the periphery of the grille portion 422. The air outlet frame 430 is sealed and inserted into the sealing rib, and covers the grille portion 422.

[0165] By sealing the air outlet frame 430 with the sealing rib, the air outlet frame 430 and the air outlet mesh cover 420 can be quickly positioned and matched, reducing assembly difficulty and improving assembly accuracy. On the other hand, it ensures that a circumferentially sealed airflow channel is formed between the air outlet mesh cover 420 and the air outlet frame 430, further improving the air delivery effect.

[0166] Please refer to the following: Figure 49 and Figure 50 , Figure 49 The diagram shown is an exploded view of the connection structure of the axial fan blade 330, the duct panel 410, and the air outlet grille 420. Figure 50 The diagram shows a cross-sectional view of the connection structure of the axial fan blade 330, the duct panel 410, and the air outlet screen 420.

[0167] Furthermore, in this embodiment, the cross-section of the air duct 411 is circular, while the grille portion 422 and the air outlet 111 of the air outlet cover 420 are both rectangular. In practical applications, the airflow channel between the air duct panel 410 and the air outlet cover 420 changes from circular to rectangular, enabling a longer air delivery distance.

[0168] To further increase airflow, in this embodiment, an air-expanding ring 4112 is provided at one end of the air duct 411 near the air outlet grille 420. The cross-section of the air-expanding ring 4112 gradually expands along the direction near the air outlet grille 420, and both ends of the air-expanding ring 4112 smoothly transition to the air outlet side of the air duct 411 and the air duct panel 410, respectively. It can be understood that the cross-section of the air-expanding ring 4112 refers to its cross-section perpendicular to the airflow direction.

[0169] Understandably, during the process of airflow exiting the air duct 411, the exit angle is first widened under the guidance of the air expansion ring 4112 to better transition to the rectangular airflow channel. During this process, the airflow resistance is small, resulting in better airflow effect, larger air volume and longer air delivery distance.

[0170] In this embodiment, there is a gap between the grille portion 422 and the air outlet side of the air duct panel 410. Within the area enclosed by the mating ring 417, except for the air diffuser ring 4112, the remaining portion forms a temperature equalization cavity 423 with the grille portion 422. Under the guidance of the air diffuser ring 4112, part of the airflow exiting the air duct 411 flows into the temperature equalization cavity 423 and passes through the air outlet mesh cover 420 through the area on the grille portion 422 corresponding to the temperature equalization cavity 423.

[0171] As can be seen, the arrangement of the temperature equalization cavity 423 and the rectangular grille section 422 allows the air outlet cover 420 to have a larger air outlet area, reducing the obstruction effect of the air outlet cover 420 on the airflow, lowering wind resistance, and effectively increasing air volume. Furthermore, because the airflow can pass through the temperature equalization cavity 423, air outside the air outlet cover 420 is less likely to approach the area on the grille section 422 that participates in forming the temperature equalization cavity 423, making the air outlet cover 420 less prone to condensation.

[0172] In this embodiment, the grille portion 422 has a plurality of spirally radial air guide ribs 4221 distributed circumferentially. The gap between any two adjacent air guide ribs 4221 in the area corresponding to the grille portion 422 and the air duct 411 is smaller than the gap between any two adjacent air guide ribs 4221 outside the area corresponding to the grille portion 422 and the air duct 411.

[0173] In other words, the gap between adjacent air guide ribs 4221 in the area of ​​the grille section 422 that participates in forming the uniform temperature cavity 423 is larger, which can effectively reduce the airflow resistance of the uniform temperature cavity 423, facilitate the rapid outflow of airflow in the uniform temperature cavity 423, effectively increase the air volume and enhance the anti-condensation effect.

[0174] To further improve the air delivery distance, in this embodiment, the rotation direction of the axial fan blades 330 is opposite to that of the multiple air guide ribs 4221. The multiple air guide ribs 4221, which rotate in the opposite direction to the axial fan blades 330, can guide the airflow to be more concentrated when the airflow passes through, thereby effectively improving the air delivery distance of the air conditioning unit 10.

[0175] In fact, the grille section 422 is provided with multiple coaxially distributed annular ribs 4222, which are arranged sequentially at intervals in the radial direction of the air duct 411, and are connected to multiple air guide ribs 4221. To prevent the annular ribs 4222 from obstructing the airflow out of the temperature equalization cavity 423, the outermost annular ribs 4222 can be positioned outside the area of ​​the temperature equalization cavity 423, meaning that the vertical projection of the outermost annular ribs 4222 on the air outlet side of the air duct panel 410 is at least inside the air expansion ring 4112. Figure 50 As shown in the image.

[0176] In addition, in order to further reduce the obstruction of the airflow in the uniform temperature cavity 423, in this embodiment, the thickness of the air guide ribs 4221 in the area of ​​the grille 422 that participate in forming the uniform temperature cavity 423 is smaller than that of the air guide ribs 4221 in the area corresponding to the air expansion ring 4112 and the air duct 411 on the grille 422.

[0177] Please continue reading. Figure 50 In this embodiment, the projection of the leading edge root point of the blade 331 in the axial flow fan 330 onto the direction perpendicular to the axis of the axial flow fan 330 falls within the connection area between the guide ring 4111 and the air duct 411. That is, the plane containing the leading edge root points of the multiple blades 331 of the axial flow fan 330 is coplanar with the plane containing one end of the guide ring 4111 connected to the air duct 411. This allows part of the blades 331 of the axial flow fan 330 to extend into the air duct 411 and part to extend into the guide ring 4111, thereby improving the problem of airflow loss caused by air leakage from the high-pressure side to the low-pressure side during air supply. Furthermore, it can also improve the air supply capacity and increase the flow collection range. It can also ensure that the airflow flowing out of the guide ring 4111 can be immediately and unobstructedly captured by the leading edge of the blades 331 of the axial flow fan 330 and do work, avoiding the airflow detachment and vortex at the outlet of the guide ring 4111.

[0178] It is understandable that the leading edge is the side edge of the blade 331 that first cuts into the air when it rotates. The leading edge root point is the innermost endpoint where the leading edge curve of the blade 331 connects with the hub, that is, the starting point where the root of the blade 331 begins to cut into the air. Preferably, in this embodiment, the axial flow fan blade 330 has five blades.

[0179] Please refer to the following: Figure 51 and Figure 52 , Figure 51 The image shown is another cross-sectional view of the air duct assembly 400. Figure 52 As shown Figure 51 A magnified schematic diagram of region H in the middle.

[0180] The sealing ribs include inner ribs 424 and outer ribs 425, which are distributed vertically and jointly surround the grid section 422. Both the inner ribs 424 and the outer ribs 425 include three ribs connected in sequence. One of the three ribs forming the inner rib 424 is located on the top side of the grid section 422, and the other two ribs are located on the left and right sides of the grid section 422 respectively. The three ribs together form a downward-facing "Z"-shaped structure. Similarly, one of the three ribs forming the outer rib 425 is located on the bottom side of the grid section 422, and the other two ribs are located on the left and right sides of the grid section 422 respectively. The three ribs together form an upward-facing "Z"-shaped structure.

[0181] Furthermore, the two opposite sides of the inner rib 424 are located inside the corresponding sides of the outer rib 425, so that the inner rib 424 and the outer rib 425 are misaligned to form a limiting gap. The air outlet frame 430 has a mating skirt 431 that is sealed and inserted with the sealing rib, and the inner rib 424 and the outer rib 425 are located on the inner and outer sides of the mating skirt 431, respectively.

[0182] In actual assembly, the mating skirt 431 of the air outlet frame 430 can be aligned with the limiting gap and directly inserted between the inner rib 424 and the outer rib 425 of the air outlet grille 420; alternatively, the mating skirt 431 of the air outlet frame 430 can be aligned first and cover the inner rib 424, and then the air outlet frame 430 can be slid downwards so that the bottom of the mating skirt 431 slides into the area enclosed by the outer rib 425, thus forming a sealed insertion structure. In the assembled state, the inner rib 424 is inside the mating skirt 431, and the outer rib 425 is outside the mating skirt 431. This improves assembly efficiency.

[0183] To improve the stability of the mating skirt 431 and the sealing rib insertion structure and prevent accidental separation, in this embodiment, the inner rib 424 has a plurality of sequentially spaced outer protrusions 4241 on the side surface opposite to the grille portion 422, and the plurality of outer protrusions 4241 abut against the inner surface of the mating skirt 431. Furthermore, the outer rib 425 has a plurality of sequentially spaced inner protrusions 4251 on the side surface near the grille portion 422, and the plurality of inner protrusions 4251 abut against the outer surface of the mating skirt 431.

[0184] In other words, by having the outer protrusion 4241 on the inner rib 424 and the inner protrusion 4251 on the outer rib 425 abut against the inner and outer sides of the mating skirt 431 respectively, the mating skirt 431 is clamped and fixed between the inner rib 424 and the outer rib 425, which can prevent the mating skirt 431 from separating from the sealing rib.

[0185] Since the insulation felt 440 wraps around the periphery of the air outlet frame 430 and the air outlet mesh cover 420, it improves the sealing performance of the interlocking structure of the skirt 431 and the sealing rib, and isolates the airflow channel between the air outlet frame 430 and the air outlet mesh cover 420 from the heat transfer to the external space, preventing the condensation on the surface of the air outlet frame 430 and the air outlet mesh cover 420 due to the temperature difference between the inside and outside, thus achieving better heat exchange and air outlet effects.

[0186] Please refer to the following: Figure 53 and Figure 54 , Figure 53 The diagram shown is a cross-sectional view of the connection structure between the air outlet grille 420 and the air duct panel 410. Figure 54 for Figure 53 Enlarged schematic diagram of region I in the middle.

[0187] In fact, in this embodiment, the sealing ribs provided on the air supply side of the air outlet mesh cover 420 not only serve to position and seal with the air outlet frame 430, but also to guide the discharge of condensate on the air outlet frame 430.

[0188] Specifically, the tops of the two opposite sides of the outer rib 425 each have a guide section 4252 that is inclined in a relatively vertical direction, and the distance between the two inclined guide sections 4252 gradually increases from bottom to top. The two guide sections 4252 are used to guide the skirt 431 on the air outlet frame 430 to slide downward to complete the insertion, and to guide the condensate on the air outlet frame 430 to flow downward to the air outlet mesh cover 420.

[0189] Furthermore, the outer rib 425 includes a water guide section 4253 corresponding to the bottom end of the grille portion 422, and the water guide section 4253 gradually slopes downward from the middle to both ends. The air outlet mesh cover 420 is provided with a mesh cover drain outlet 426 extending from the air supply side to the windward side, and the mesh cover drain outlet 426 is located at the bottom of the area surrounded by the outer rib 425, specifically at both ends of the water guide section 4253.

[0190] In practical applications, the condensate on the air outlet frame 430 and the air outlet mesh cover 420 can flow downwards and into the area surrounded by the outer rib 425 under the guidance of the water guide section 4253. When the condensate flows to the water guide section 4253 of the outer rib 425, since the water guide section 4253 gradually slopes downwards from the middle to both ends, it can guide the condensate on the surface to flow to both ends and reach the two mesh cover drain ports 426 at both ends of the water guide section 4253. Finally, it flows into the water receiving tray 213 of the evaporator bracket 210 through the two mesh cover drain ports 426, realizing the collection of condensate and preventing condensate dripping.

[0191] In this embodiment, a drainage groove 419 is provided at the bottom area of ​​the air outlet side of the air duct panel 410. The drainage groove 419 is in fluid communication with the water receiving tray 213. A water guide plate 427 is also provided on the windward side of the air outlet mesh cover 420. The water guide plate 427 is located below the mesh cover drain port 426 and is used to guide the water from the mesh cover drain port 426 into the drainage groove 419. A drainage plate 429 is also provided extending from the free end of the water guide plate 427 corresponding to the mesh cover drain port 426 to ensure that a large flow of condensate can be completely discharged into the drainage groove 419.

[0192] In practical applications, the condensate flowing down the air supply side surface of the air outlet screen 420 passes through the screen drain port 426 to the windward side of the air outlet screen 420, and flows into the drain groove 419 set on the air outlet side of the air duct panel 410 under the guidance of the water guide plate 427, and finally flows into the water receiving tray 213 of the evaporator bracket 210, thus completing the collection of condensate.

[0193] Please refer to the following: Figure 55 and Figure 56 , Figure 55 The diagram shown is a schematic representation of the connection structure between the air outlet grille 420 and the air duct panel 410 from one perspective. Figure 56 The diagram shows the connection structure between the air outlet grille 420 and the air duct panel 410 from another perspective.

[0194] In this embodiment, a panel drain outlet 4191 is provided through the bottom area of ​​the drainage trough 419, and the panel drain outlet 4191 is in fluid communication with the water receiving tray 213. In practical applications, the condensate on the air outlet screen 420 and the air outlet frame 430 flows into the drainage trough 419 through the screen drain outlet 426 and the water guide plate 427 in sequence, and then flows into the water receiving tray 213 through the panel drain outlet 4191 at the bottom of the drainage trough 419.

[0195] In this embodiment, a water collection tank 450 is recessed in the top wall of the duct panel 410, and a drain outlet 451 is provided on the tank wall of the water collection tank 450. The drain outlet 451 is in fluid communication with the drain trough 419. In practical applications, the condensate generated at the top of the duct panel 410 can be collected by the water collection tank 450 and flow into the drain trough 419 through the drain outlet 451, and then flow into the water receiving tray 213 through the panel drain outlet 4191 at the bottom of the drain trough 419.

[0196] The water collection tank 450 has a flow guide bottom wall 452 that extends downward from the middle to the left and right ends. The water collection tank 450 also has two flow guide side walls 453, which are located at the left and right ends of the flow guide bottom wall 452 and are inclined relative to the vertical direction. At least two drain outlets 451 are respectively provided on the two flow guide side walls 453.

[0197] The guide sidewall 453 can guide the condensate on the top wall of the air duct panel 410 downward into the water collection tank 450, and then into the drainage tank 419 through the drain outlet 451. In this embodiment, both the left and right sidewalls of the air duct panel 410 are provided with a drainage structure that connects the corresponding drain outlet 451 to the drainage tank 419.

[0198] The drainage structure includes a side guide channel 460 that guides condensate to flow downwards. The top of the side guide channel 460 is connected to the corresponding drain outlet 451, and the bottom is provided with an overflow hole that is connected to the drain channel 419. The bottom of the side guide channel 460 is also provided with a side drain outlet 461 that is directly connected to the water receiving tray 213.

[0199] Understandably, in practical applications, when the condensate in the side guide groove 460 flows downward to the bottom, a portion of it flows into the drain groove 419 through the overflow hole. After entering the drain groove 419, this portion of condensate flows into the water receiving tray 213 through the panel drain port 4191, while another portion flows directly into the water receiving tray 213 through the side drain port 461.

[0200] Furthermore, in this embodiment, a plurality of guide ribs 462 are provided in the side guide channel 460. The guide ribs 462 extend downward at an angle, which can guide the condensate in the side guide channel 460 to flow down in a concentrated manner, preventing it from remaining on the channel wall of the side guide channel 460 for a long time.

[0201] Please refer to the following: Figure 57 , Figure 57 The diagram shows the connection structure between the air duct panel 410 and the electrical control box 500.

[0202] In this embodiment, the electrical control box 500 is located below the air duct assembly 400, and the electrical control box 500 has mounting cavities for mounting the junction box and the PCB board respectively. That is to say, the electrical control box 500 in this embodiment also integrates the function of a junction box, making the structure more compact.

[0203] Furthermore, in this embodiment, the electrical control box 500 includes a box body 510 and a cover 520. The cover 520 covers the box body 510, and the opening of the box body 510 faces the air inlet 131. In the front-rear direction, the distance from the sealing gap between the box body 510 and the cover 520 to the air inlet 131 is greater than the distance from the side of the drain trough 419 near the air outlet 111 to the air inlet 131. In other words, the sealing gap between the box body 510 and the cover 520 is further forward than the drain trough 419, and the cover 520 is provided with a flange that wraps around the side wall of the opening of the box body 510. This can receive and guide water flowing out from the front side of the drain trough 419 away from the sealing gap between the box body 510 and the cover 520, preventing water from accidentally entering the electrical control box 500. It also provides more space on the rear side of the electrical control box 500 to make way for the installation of other modules. The sealing gap between the box body 510 and the box cover 520 refers to the gap on the opening side of the box body 510.

[0204] Please refer to the following: Figure 58 and Figure 59 , Figure 58 The diagram shows the connection structure between the air outlet frame 430 and the upper panel 110. Figure 59 The diagram shown is an exploded view of the connection structure between the air outlet frame 430 and the upper panel 110.

[0205] In this embodiment, the air outlet frame 430 includes a frame 432, in which a plurality of vertically spaced upper and lower sweeping blades 433 are provided, as well as a connecting rod 434 extending in the vertical direction.

[0206] In this embodiment, the frame 432 and the upper panel 110 are also connected by screws or other detachable means. In another embodiment, depending on the actual application conditions, the frame 432 and the upper panel 110 are integrally formed, which can further simplify the structure, reduce the assembly difficulty, and also avoid air leakage and condensation caused by separate connection.

[0207] Multiple vertically oriented air-sweeping blades 433 are positioned on the side of the frame 432 away from the air outlet grille 420 and within the air outlet 111 of the upper panel 110. They can be flipped downwards to adjust the airflow direction. Furthermore, the air conditioner unit 10 has a shutdown state. In this state, the multiple vertically oriented air-sweeping blades 433 collectively seal the air outlet 111. Because the air outlet 111 is rectangular, it can be better sealed by the multiple air-sweeping blades 331.

[0208] Please refer to the following: Figure 60 and Figure 61 , Figure 60 As shown Figure 59 Enlarged diagram of region J in the middle. Figure 61 As shown Figure 59 A magnified view of the K region.

[0209] In this embodiment, connecting plates 4331 are provided at both ends of the upper and lower sweeping blades 433, and connecting shafts 4332 are provided on both sides of the connecting plates 4331. Furthermore, first rotating shafts 4333 are provided on the opposite sides of the two connecting plates 4331 of the same upper and lower sweeping blades 433, and the two first rotating shafts 4333 are rotatably engaged with the left and right sides of the frame 432.

[0210] The connecting rod 434 includes a rod body 4341 and a plurality of mating parts spaced apart along the extension direction of the rod body 4341. The plurality of mating parts are provided in a one-to-one correspondence with a plurality of connecting plates 4331. Each mating part includes two mating blocks 4342 spaced apart. Both mating blocks 4342 are provided with mating holes 4343. The mating holes 4343 on the mating blocks 4342 are respectively inserted and mated with two connecting shafts 4332 on the connecting plates 4331.

[0211] Please refer to the following: Figure 62 and Figure 63 , Figure 62 The diagram shown is a cross-sectional view of the connection structure between the upper and lower sweeping blades 433 and the connecting rod 434. Figure 63 As shown Figure 62 A magnified schematic diagram of the L region.

[0212] In this embodiment, the two mating blocks 4342 can deform under external force, thereby changing the distance between the two mating blocks 4342 to facilitate the insertion of the two connecting shafts 4332 into the mating holes 4343 on the two mating blocks 4342 respectively. After the insertion is completed, the force applied to the two mating blocks 4342 is removed, and the two mating blocks 4342 can recover their deformation and move closer to each other, jointly constraining the connecting plate 4331 and preventing the two connecting shafts 4332 from coming out of the corresponding mating holes 4343.

[0213] Furthermore, to facilitate the installation of the upper and lower sweeping blades 433 and the connecting rod 434, a clearance notch 4344 is provided on the side of the mating block 4342 away from the rod body 4341. The diameter of the clearance notch 4344 gradually decreases in the direction close to the mating block 4342. It can be understood that the connecting plate 4331 on the upper and lower sweeping blades 433 can extend from the clearance notch 4344 into the space between the two mating blocks 4342, thereby causing the mating blocks 4342 to deform so that the connecting shafts 4332 on both sides of the connecting plate 4331 can be inserted into the mating holes 4343 of the two mating blocks 4342 respectively.

[0214] In this embodiment, there are two connecting rods 434. Connecting plates 4331 are provided at both ends of the upper and lower sweeping blades 433 along the axial direction. Each upper and lower sweeping blade 433 is connected to the two connecting rods 434 via connecting shafts 4332 on the two connecting plates 4331. It can be understood that each upper and lower sweeping blade 433 is connected to the two connecting rods 434, and the connecting rods 434 provide support for the upper and lower sweeping blades 433, thereby improving the stability of the rotation process of multiple upper and lower sweeping blades 433.

[0215] In this embodiment, the frame 432 is also provided with a plurality of left and right sweeping blades 435 arranged sequentially and spaced apart in the left and right direction. The plurality of left and right sweeping blades 435 extend in the vertical direction, and both the upper and lower ends are rotated and cooperate with the frame 432.

[0216] Please refer to the following: Figure 64 , Figure 65 , Figure 66 , Figure 67 and Figure 68 , Figure 64 The diagram shows the connection structure between multiple left and right sweeping blades 435 and the frame 432. Figure 65 As shown Figure 64 Enlarged diagram of region M in the middle. Figure 66 As shown Figure 64 Enlarged diagram of region N in the middle. Figure 67 The diagram shown is a cross-sectional view of the connection structure between the multiple left and right sweeping blades 435 and the frame 432. Figure 68 As shown Figure 67 A magnified diagram of the O region.

[0217] The top and bottom walls of the frame 432 are both provided with shaft holes 4321 and disassembly holes 4322, with the disassembly holes 4322 communicating with one side of the shaft holes 4321. Each end of the left and right sweeping blades 435 is provided with a second rotating shaft 4351, and the outer peripheral wall of the second rotating shaft 4351 is provided with a limiting protrusion 4352. The second rotating shafts 4351 at both ends of the left and right sweeping blades 435 rotate and engage with the shaft holes 4321 on the top and bottom walls of the frame 432, respectively. When the limiting protrusion 4352 is aligned with the disassembly hole 4322, it can pass through the corresponding disassembly hole 4322.

[0218] In this embodiment, compared to the upper and lower sweeping blades 433, the left and right sweeping blades 435 are closer to the air outlet cover 420 in the front-to-back direction. Driven by the driving component, the left and right sweeping blades 435 can rotate relative to the frame 432 within a preset angle range to perform left and right sweeping. During the rotation of the left and right sweeping blades 435 within the preset angle range, the limiting protrusion 4352 is misaligned with the disassembly hole 4322. In other words, within the rotation angle range of the left and right sweeping blades 435, the limiting protrusion 4352 and the disassembly hole 4322 are always misaligned.

[0219] When assembling the left and right sweeping blades 435 onto the frame 432, adjust the posture and angle of the left and right sweeping blades 435 so that the limiting protrusion 4352 on its second rotating shaft 4351 is aligned with the corresponding disassembly hole 4322. Then, smoothly pass the second rotating shaft 4351 through the corresponding shaft hole 4321, and the limiting protrusion 4352 through the corresponding disassembly hole 4322. Afterward, adjust the posture of the left and right sweeping blades 435 so that the limiting protrusion 4352 is misaligned with the corresponding disassembly hole 4322, thereby preventing the second rotating shaft 4351 from exiting the corresponding shaft hole 4321, thus completing the assembly of the left and right sweeping blades 435 within the frame 432.

[0220] Understandably, after the left and right sweeping blades 435 are assembled with the frame 432, the limiting protrusions 4352 at the top of the left and right sweeping blades 435 are on the top wall of the frame 432, and the limiting protrusions 4352 at the bottom of the left and right sweeping blades 435 are below the bottom wall of the frame 432. The two limiting protrusions 4352 cooperate with each other to restrict the movement of the left and right sweeping blades 435 in the vertical direction and prevent the left and right sweeping blades 435 from detaching from the frame 432.

[0221] During the left and right sweeping motion of the left and right air-sweeping blades 435 driven by the drive component, the limiting protrusion 4352 is always misaligned with the disassembly hole 4322 to prevent the limiting protrusion 4352 from dislodging from the corresponding disassembly hole 4322. In this embodiment, the direction facing the air outlet 111 is set as 0°, and the left and right sweeping blades 435 can rotate within an angle range of -45° to 45°, while the disassembly hole 4322 is outside this angle range.

[0222] In this embodiment, a water baffle 4353 is also provided at the bottom of the left and right sweeping blades 435. The water baffle 4353 is coaxially arranged on the second rotating shaft 4351. The water baffle 4353 can cover the shaft hole 4321 and the disassembly hole 4322 on the bottom wall of the frame 432, thereby preventing condensate from dripping from the shaft hole 4321.

[0223] Furthermore, a mating protrusion 4323 is provided on the upper surface of the bottom wall of the frame 432, which engages with the water baffle 4353. Understandably, the mating protrusion 4323 further prevents condensate from dripping from the shaft hole 4321. The combination of the water baffle 4353 and the mating protrusion 4323 achieves double waterproofing.

[0224] Please refer to the following: Figure 69 and Figure 70 , Figure 69 The diagram shown is a structural schematic of the upper and lower sweeping blades 433 when closed. Figure 70 The diagram shown is a structural schematic of the upper and lower sweeping blades 433 when they are opened to their maximum angle.

[0225] When the upper and lower sweeping blades 433 are in the closed state, multiple upper and lower sweeping blades 433 together seal the air outlet 111. When the upper and lower sweeping blades 433 rotate upwards from the closed state to their maximum angle, [the desired effect is achieved]. Figure 69 The state shown.

[0226] In this embodiment, the front edge of the left and right sweeping blades 435 is provided with a clearance notch 4354. The clearance notch 4354 avoids the rotation of the upper and lower sweeping blades 433. On the one hand, it avoids interference with the rotation path of the upper and lower sweeping blades 433. On the other hand, it can effectively compress the distance between the upper and lower sweeping blades 433 and the left and right sweeping blades 435, thereby improving the structural compactness of the air duct assembly 400.

[0227] In this embodiment, in the air outlet direction, the center of gravity of the upper and lower sweeping blades 433 is always located in front of the first rotating shaft 4333. Specifically, when the upper and lower sweeping blades 433 are in the closed state, the center of gravity of the upper and lower sweeping blades 433 is located in front of the first rotating shaft 4333 and is lower than the height of the first rotating shaft 4333; when the upper and lower sweeping blades 433 are at their maximum angle, the center of gravity of the upper and lower sweeping blades 433 is located in front of the first rotating shaft 4333 and is higher than the height of the first rotating shaft 4333.

[0228] In other words, in practical applications, no matter how the upper and lower sweeping blades 433 rotate to any angle, their center of gravity is always located in front of the first rotating shaft 4333. This prevents the center of gravity of the upper and lower sweeping blades 433 from jumping on both sides of the first rotating shaft 4333 during rotation, ensuring that the upper and lower sweeping blades 433 rotate smoothly and without shaking, thereby achieving a better air guiding effect.

[0229] In summary, the air conditioner unit 10 provided in this embodiment has the characteristics of simpler and more compact structure, larger air volume, lower noise and better structural stability.

[0230] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A cabinet air conditioner, characterized in that, include: The air duct panel (410) is provided with an air duct (411) extending from its air inlet side to its air outlet side, and the air duct (411) has a circular cross-section; An axial flow fan blade (330) is disposed within the air duct (411); An air outlet cover (420) is connected to the air outlet side of the air duct panel (410). The air outlet cover (420) includes a grille (422), which has an air outlet area for airflow to pass through. The grille (422) is rectangular and at least covers the air outlet of the air duct (411). The housing (100), the air duct panel (410) and the air outlet mesh (420) are both disposed inside the housing (100), and the housing (100) has an air outlet (111) which is rectangular.

2. The air conditioner unit according to claim 1, characterized in that, The center line of the air outlet (111) coincides with the center line of the grille (422).

3. The air conditioner unit according to claim 2, characterized in that, The rotation center line of the axial flow fan blade (330) coincides with the center line of the grille section (422).

4. The air conditioner unit according to claim 3, characterized in that, The air conditioner cabinet unit (10) also includes an air outlet frame (430), which is connected to the side of the air outlet mesh cover (420) away from the air duct panel (410); The air outlet frame (430) at least surrounds the air outlet area of ​​the grille portion (422). And / or, the air outlet frame (430) at least surrounds the air outlet (111). And / or, the air outlet frame (430) is rectangular.

5. The air conditioner unit according to claim 4, characterized in that, The air duct panel (410), the air outlet mesh cover (420) and the air outlet frame (430) are all disposed inside the housing (100); Multiple upper and lower air-sweeping blades (433) are provided on the side of the air outlet frame (430) away from the air outlet cover (420). The air conditioner cabinet (10) has a shutdown state. In the shutdown state, the multiple upper and lower air-sweeping blades (433) jointly close the air outlet (111).

6. The air conditioner unit according to any one of claims 1-5, characterized in that, The air outlet side of the air duct panel (410) is provided with a mating ring (417) that surrounds the air outlet of the air duct (411), and the mating ring (417) is sealed and inserted into the air outlet screen (420). The matching ring (417) at least surrounds the air outlet area of ​​the grille portion (422), and / or, The matching ring wall (417) is rectangular.

7. The air conditioner cabinet unit according to claim 6, characterized in that, Both sides of the air outlet mesh cover (420) are provided with mesh cover hooks (421) for hanging on the air duct panel (410); and / or, The top and / or bottom of the air outlet mesh cover (420) are connected to the air duct panel (410) by threaded connectors.

8. The air conditioner unit according to any one of claims 1-5, characterized in that, An air guide ring (4111) is provided at the end of the air duct (4111) away from the air outlet screen (420), and the cross-sectional area of ​​the air guide ring (4111) gradually increases in the direction away from the air outlet screen (420); and / or, An air expansion ring (4112) is provided at one end of the air duct (411) near the air outlet cover (420). The cross-section of the air expansion ring (4112) gradually expands in the direction close to the air outlet cover (420), and the two ends of the air expansion ring (4112) smoothly transition to the air outlet side of the air duct (411) and the air duct panel (410), respectively.

9. The air conditioner cabinet unit according to claim 8, characterized in that, A gap is formed between the grille (422) and the air outlet side of the air duct panel (410).

10. The air conditioner cabinet unit according to claim 9, characterized in that, The grille section (422) has a plurality of spirally radial air guide ribs (4221) distributed circumferentially, and the rotation direction of the axial flow fan blade (330) is opposite to the rotation direction of the plurality of air guide ribs (4221).

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