Air conditioner

Abstract

The utility model provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner can comprise an air supply pipeline, and an air outlet duct and an air return duct are arranged in the air supply pipeline. The machine body comprises a shell, an evaporator and a first fan, the evaporator and the first fan are arranged in the shell, a first opening and a second opening are formed in the shell, the first fan comprises an air return opening and an air outlet, the air outlet is communicated with the air outlet channel through the first opening, and the air return channel is communicated with the second opening. The shell further comprises an air guide plate which is located at the top of the evaporator, and an air guide channel is formed between the part, located on the face, away from the evaporator, of the shell and the air guide plate. The second opening communicates with the air guide channel, a plurality of air guide holes communicating with the face, away from the first fan, of the evaporator are formed in the air guide plate, and the face, facing the first fan, of the evaporator communicates with the air return opening. The problem that air circulation and heat exchange efficiency are affected due to the fact that an air conditioner does not have return air in the prior art is solved.

Description

[0001] This application claims priority to Chinese Patent Application No. 202411790493.3, filed on December 6, 2024, entitled "An Air Conditioner", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of air conditioning technology, and in particular to an air conditioner. Background Technology

[0003] Traditional household wall-mounted air conditioners consist of an indoor unit and an outdoor unit. However, regardless of the model, the indoor unit contains core components such as heat exchangers, motors, and fan blades, preventing it from being designed into a compact and elegant form. Therefore, it cannot be easily integrated into home décor. Currently, some commercial kitchen air conditioners deliver air to the kitchen through ductwork, but due to the large size of these ducts and the lack of return air, they are unsuitable for home environments and cannot be integrated with furniture. Utility Model Content

[0004] The purpose of this invention is to provide an air conditioner that solves the problem that the lack of return air in existing air conditioners affects air circulation and heat exchange efficiency.

[0005] This application provides an air conditioner, including:

[0006] The air supply duct is equipped with an outlet air duct and a return air duct.

[0007] The unit includes a housing, an evaporator, and a first fan housed within the housing. The housing has a first opening and a second opening. The first fan includes a return air inlet and an air outlet. The air outlet communicates with an air outlet duct through the first opening, and the return air duct communicates with the second opening.

[0008] The housing also includes an air guide plate, which is located at the top of the evaporator. An air guide channel is formed between the portion of the housing and the air guide plate located on the side of the air guide plate away from the evaporator.

[0009] The second opening is connected to the air guide channel. The air guide plate is provided with multiple air guide holes that are connected to the side of the evaporator away from the first fan, and the side of the evaporator facing the first fan is connected to the return air inlet.

[0010] The air conditioner provided in this application embodiment, by setting up an air supply duct and incorporating both an outlet air duct and a return air duct within it, allows the air conditioner to simultaneously possess both outlet and return air ducts. This enables the partially cooled air to be reintroduced into the system via the return air duct, reducing the demand for external fresh air and thus lowering energy consumption. Effective air circulation reduces the workload of the air conditioning system, contributing to improved overall system energy efficiency. By connecting the outlet air duct to the first fan, it ensures that the treated cold air is effectively delivered to all areas of the room, promoting uniform air distribution. The return air duct, connected to the evaporator, allows indoor air to be drawn back into the air conditioning system for reprocessing, forming a complete air circulation. Through the effective coordination of outlet and return air, the air conditioning system can distribute cold air more evenly, avoiding uneven heating or cooling indoors.

[0011] By installing a guide vane inside the casing and forming an airflow channel between the side of the guide vane facing away from the evaporator and the casing, and by setting multiple airflow holes on the guide vane that communicate with the side of the evaporator facing away from the first fan, the guide vane can guide airflow across the entire surface of the evaporator, ensuring a more efficient heat exchange process. This prevents airflow entering the casing from the return air duct from being directly drawn in through the return air inlet of the first fan and then discharged again. In other words, it ensures that the airflow entering the casing through the return air duct can uniformly pass through the evaporator for heat exchange before re-entering the first fan, ensuring sufficient airflow circulation. Furthermore, the airflow channel helps to evenly distribute the cold air passing through the evaporator, reducing airflow turbulence and unevenness.

[0012] In one possible implementation, multiple air guide holes are spaced apart along the airflow direction of the air guide channel;

[0013] In the airflow direction of the air guide channel, the air outlet area of ​​at least some of the air guide holes is positively correlated with the distance from the air guide hole to the second opening.

[0014] By gradually increasing the outlet area of ​​the air guide vents, it is possible to ensure that the airflow is evenly distributed throughout the entire air guide channel, avoiding excessively strong or weak airflow in certain areas. This design effectively prevents excessive airflow concentration near the inlet, thereby reducing short-circuiting and ensuring sufficient air circulation throughout the space. A more uniform airflow distribution allows air to make more thorough contact with the evaporator surface, improving heat exchange efficiency.

[0015] In one possible implementation, multiple air guide holes are arranged side by side at the same position as the second opening in the air guiding direction of the air guide channel;

[0016] The total air outlet area of ​​multiple air guide holes located in the same row is positively correlated with the distance from the air guide hole to the second opening.

[0017] This configuration, by gradually increasing the outlet area along the airflow direction, balances the airflow pressure, ensuring a uniform airflow distribution throughout the entire airflow channel. It prevents excessive airflow concentration near the inlet, ensuring uniform airflow across the entire evaporator surface and improving heat exchange efficiency. The uniform airflow distribution allows for more thorough contact between the air and the evaporator surface, increasing the heat exchange area and efficiency. Furthermore, the uniform airflow reduces the temperature gradient between different areas of the evaporator surface, improving the overall cooling effect.

[0018] In one possible implementation, at least a portion of the air guide plate is inclined; wherein,

[0019] In the airflow direction of the air guide channel, from the end of the air guide channel near the second opening to the end of the air guide channel away from the second opening, the size of the air guide channel in the height direction of the fuselage gradually increases.

[0020] This design allows the height of the air guide channel to gradually increase from the end closest to the second opening to the end furthest from it. As the height increases, the channel area expands, helping to balance airflow pressure and ensure uniform airflow distribution throughout the channel. This also prevents excessive airflow concentration near the inlet, ensuring air flows evenly across the entire evaporator surface. More uniform airflow distribution allows for greater contact between the air and the evaporator surface, increasing heat exchange area and efficiency. Uniform airflow reduces temperature gradients between different areas of the evaporator surface, improving overall cooling performance. The gradually increasing channel size helps to smooth airflow, reducing turbulence and airflow collisions, thus lowering operating noise. Optimizing the airflow path reduces abrupt changes in airflow velocity, further reducing noise generation.

[0021] In one possible implementation, the evaporator is set at an angle to the height of the casing, and the top of the evaporator is tilted towards the first fan.

[0022] Tilt the evaporator to increase the contact area between the airflow and the evaporator, thereby improving heat exchange efficiency. The tilted design helps guide airflow more evenly across the evaporator surface, ensuring more efficient heat transfer. The tilted evaporator design also facilitates natural flow and drainage of condensate, reducing water accumulation and the risk of mold and bacteria growth. The tilted design reduces airflow resistance, improving fan efficiency and overall system energy efficiency. By optimizing the airflow path, turbulence and airflow collisions are reduced, thus lowering operating noise. Furthermore, the tilted design allows for more fins to be installed within the same vertical space, increasing the evaporator's heat exchange area. For evaporators of the same size, the tilted design reduces the vertical space required, contributing to a more compact equipment layout and saving space.

[0023] In one possible implementation, a first baffle is provided inside the air supply duct; wherein...

[0024] The first partition extends in a direction parallel to the direction in which the air supply duct extends, dividing the air supply duct into an outlet air duct and a return air duct.

[0025] This design allows for an integrated structure that combines both supply and return air ducts, reducing the need for additional pipes and connectors. This makes the entire system more compact, reduces the need for multiple independent pipes during installation, lowers installation complexity and time, and consequently reduces costs. The integrated supply air duct reduces potential air leakage and heat loss at pipe connections, improving overall system energy efficiency. The first baffle ensures optimized paths for supply and return air, reducing airflow interference and improving airflow efficiency. Effective isolation by the first baffle ensures the independence of supply and return air, reducing cross-contamination and improving indoor air quality.

[0026] In one possible implementation, a condenser and a compressor are also housed within the casing; wherein,

[0027] One end of the air supply duct is connected to the unit body, and the other end extends to the target space;

[0028] After being heated by the compressor, the gas is blown into the air outlet duct from the outlet of the first fan and then flows into the target space. The gas in the target space enters the casing through the return air duct.

[0029] This configuration allows the unit to include the evaporator, condenser, compressor, and primary fan—in other words, it incorporates the components of a traditional indoor and outdoor air conditioner. The air supply duct in this design uses both supply and return air ducts to deliver air from the unit to the target space and simultaneously return air from the target space back to the unit. By delivering air solely through the supply duct, the size of the indoor unit is effectively reduced. Furthermore, because the indoor unit only contains the supply duct and lacks an evaporator and fan, the air conditioner operates quietly within the target space, improving the user experience.

[0030] In one possible implementation, the housing includes a second partition that divides the housing into an upper first receiving cavity and a lower second receiving cavity;

[0031] The evaporator and the first fan are located in the first receiving cavity, and the condenser is located in the second receiving cavity.

[0032] By placing the evaporator and condenser in separate chambers, thermal interference between them can be effectively reduced, improving heat exchange efficiency. It also ensures that the evaporator and condenser operate under their respective optimal temperature conditions, improving system performance. The separated chamber design allows for independent management of airflow in the evaporator and condenser. By reducing mutual heat interference, the evaporator can cool more efficiently, and the condenser can release heat more efficiently. Optimizing operating conditions and reducing thermal interference lowers equipment wear and extends service life. The presence of a second baffle helps isolate noise sources, reducing noise transmission during evaporator and condenser operation and improving user experience. The separated chamber design also makes maintenance and repair of each component easier and reduces maintenance costs.

[0033] In one possible implementation, the housing further includes a third partition disposed within the first receiving cavity, the third partition dividing the first receiving cavity into a first sub-cavity and a second sub-cavity;

[0034] The evaporator is located in the first sub-cavity, and the first fan is located in the second sub-cavity.

[0035] The third partition is provided with a third opening, which is used to connect the first sub-cavity and the second sub-cavity.

[0036] By incorporating a third opening in the third baffle, airflow can be effectively directed from the evaporator to the first fan, optimizing the airflow path and improving airflow efficiency. The presence of the third baffle helps reduce airflow turbulence and disturbances, ensuring smooth airflow and reducing energy consumption. By separating the evaporator and the first fan into different sub-cavities, the mutual influence of heat is reduced, allowing the evaporator to exchange heat more efficiently.

[0037] In one possible implementation, the air guide channel is located at the top of the first sub-cavity, and multiple air guide holes are all connected to the first sub-cavity; wherein,

[0038] The airflow from the return air duct into the air guide channel enters the first sub-cavity through the air guide hole, undergoes heat exchange in the evaporator, and then flows to the second sub-cavity through the third opening. The first fan then blows the gas into the air outlet duct.

[0039] By placing the air duct at the top of the first sub-cavity, heat loss before the air enters the evaporator is reduced. Since hot air naturally rises and cold air naturally sinks, this design utilizes the natural flow characteristics of air. With top-mounted return air, indoor air can circulate more effectively, avoiding air stagnation or dead zones, thus improving indoor air quality and comfort. When the return air duct is located at the top of the evaporator, air can flow more evenly across the evaporator surface, improving heat exchange efficiency. This helps to cool or heat air more quickly, improving the overall performance of the air conditioner.

[0040] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this application in conjunction with the accompanying drawings. Attached Figure Description

[0041] The following sections will describe some specific embodiments of this application in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0042] Figure 1 This is a schematic perspective view of an air conditioner installed in a target space according to a specific embodiment of this application;

[0043] Figure 2 This is a schematic side view of an air conditioner installed in a target space according to a specific embodiment of this application;

[0044] Figure 3 This is a partial exploded view of the fuselage according to a specific embodiment of this application;

[0045] Figure 4 This is a partial explosion diagram of an air conditioner according to a specific embodiment of this application;

[0046] Figure 5 This is a schematic structural diagram of an air conditioner supplying air to multiple target spaces according to a specific embodiment of this application;

[0047] Figure 6 This is a schematic structural diagram of an air conditioner supplying air to multiple target spaces according to another specific embodiment of this application;

[0048] Figure 7 This is a schematic structural diagram of an air supply duct according to a specific embodiment of this application;

[0049] Figure 8 This is a schematic structural diagram of a wall-penetrating section of an air supply duct according to a specific embodiment of this application;

[0050] Figure 9 This is a partial schematic structural diagram of an air supply duct according to a specific embodiment of this application;

[0051] Figure 10 This is a partial schematic structural diagram of an air supply duct according to another specific embodiment of this application;

[0052] Figure 11 This is a schematic structural diagram of the connection between the air supply duct and the air outlet duct according to a specific embodiment of this application;

[0053] Figure 12 This is a schematic structural diagram of an air outlet duct according to a specific embodiment of this application;

[0054] Figure 13 This is a partial schematic exploded view of an air outlet duct according to another specific embodiment of this application;

[0055] Figure 14 This is a schematic cross-sectional view of an air outlet duct according to another specific embodiment of this application;

[0056] Figure 15 This is a partial schematic exploded view of an air outlet duct according to yet another specific embodiment of this application;

[0057] Figure 16 This is a schematic cross-sectional view of an air outlet duct according to yet another specific embodiment of this application;

[0058] Figure 17 This is a schematic structural diagram of an air outlet duct according to another specific embodiment of this application;

[0059] Figure 18 This is a schematic cross-sectional view of an air outlet duct according to another specific embodiment of this application;

[0060] Figure 19 This is a schematic cross-sectional view of an air outlet duct installed on a target object according to a specific embodiment of this application;

[0061] Figure 20 This is a schematic cross-sectional view of an air outlet duct installed on a target object according to another specific embodiment of this application;

[0062] Figure 21 This is a schematic cross-sectional view of an air outlet duct installed on a target object according to yet another specific embodiment of this application;

[0063] Figure 22 This is a schematic cross-sectional view of an air outlet duct installed on a target object according to yet another specific embodiment of this application;

[0064] Figure 23 This is a schematic structural diagram of an air outlet duct and bracket according to a specific embodiment of this application;

[0065] Figure 24 This is a schematic structural diagram of a bracket according to a specific embodiment of this application;

[0066] Figure 25 This is a schematic structural diagram of the fuselage according to a specific embodiment of this application;

[0067] Figure 26 This is a schematic diagram of the internal structure of the fuselage according to a specific embodiment of this application;

[0068] Figure 27 This is a partial exploded view of the fuselage according to another specific embodiment of this application;

[0069] Figure 28 This is a schematic diagram of the internal structure of the fuselage according to another specific embodiment of this application;

[0070] Figure 29 This is a structural schematic diagram of the air guide plate of the fuselage according to a specific embodiment of this application;

[0071] Figure 30 This is a schematic diagram of a structure in which another type of air guide plate is provided in the fuselage according to a specific embodiment of this application.

[0072] Explanation of reference numerals in the attached figures:

[0073] 100 - Air conditioner; 200 - Unit body; 210 - Housing;

[0074] 210a - Anterior sidewall; 210b - Rear sidewall;

[0075] 211-First receiving cavity; 2111-First opening; 2112-Second opening;

[0076] 212 - Second receiving cavity; 213 - First sub-cavity;

[0077] 214 - Second sub-cavity; 215 - Third sub-cavity; 216 - Fourth sub-cavity;

[0078] 217 - Air outlet; 218 - Grille; 219 - Air guide plate;

[0079] 2191 - Air duct; 2192 - Air vent; 220 - Evaporator;

[0080] 230 - Condenser; 240 - Compressor; 250 - First fan;

[0081] 260 - Second partition; 270 - Third partition; 271 - Third opening;

[0082] 272 - Air guide wall; 280 - Fourth partition; 290 - Second fan;

[0083] 300 - Supply air duct; 310 - Outlet air duct; 320 - Return air duct;

[0084] 330 - Main pipe; 340 - Branch pipe; 350 - Through-wall section;

[0085] 360 - Pipe body; 370 - First diaphragm; 380 - Pipe unit;

[0086] 390 - Snap ring; 400 - Target space; 500 - Air outlet duct;

[0087] 501 - Air outlet module; 510 - Air outlet; 520 - First baffle;

[0088] 521 - First through hole; 530 - Second baffle; 531 - Second through hole;

[0089] 540 - Third baffle; 550 - Wind deflector; 560 - Air guide mechanism;

[0090] 570 - Side wall; 580 - Bracket; 581 - Snap-fit ​​structure. Detailed Implementation

[0091] In the description of this embodiment, it should be understood that the terms "length", "width", "height", "up", "down", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0092] As a specific embodiment of this application, such as Figures 1 to 4 As shown, this embodiment discloses an air conditioner 100, which may include a body 200 and at least one air supply duct 300. The body 200 may include a housing 210 and an evaporator 220, a condenser 230, a compressor 240, and a first fan 250 disposed within the housing 210. One end of each air supply duct 300 is connected to the body 200, and the other end extends to a target space 400. An air outlet duct 310 and a return air duct 320 are disposed within the air supply duct 300, which are arranged side by side. Gas that has undergone heat exchange by the compressor 240 is blown into the air outlet duct 310 by the first fan 250 and then flows into the target space 400. Gas in the target space 400 enters the housing 210 through the return air duct 320.

[0093] Specifically, the air conditioner 100 in this embodiment may include a body 200 and at least one air supply duct 300. The body 200 may include an evaporator 220, a condenser 230, a compressor 240, and a first fan 250. That is, the body 200 includes the components of the indoor and outdoor units of a conventional air conditioner 100. The air supply duct 300 in this embodiment achieves the purpose of transporting the gas in the body 200 to the target space 400 through the outlet air duct 310 and the return air duct 320, while simultaneously returning the gas in the target space 400 back to the body 200. In other words, the air conditioner 100 in this embodiment places the evaporator 220, condenser 230, compressor 240 and fan of the traditional indoor and outdoor units in the same machine, and delivers gas to the target space 400 only through the air supply duct 300. This can effectively reduce the size of the indoor unit. At the same time, since there is only the air supply duct 300 and no other machines such as the evaporator 220 and fan in the indoor unit, the air conditioner 100 is quieter when blowing air in the target space 400, thus improving the user experience.

[0094] This application discloses a small-sized ducted air conditioner 100 with return air, which externalizes the core components of a traditional air conditioner 100, such as the heat exchanger, and delivers air through an air supply duct 300. In addition, the air supply duct 300 can be made into a small volume, thereby achieving integration into the home.

[0095] As one example, such as Figure 5 and Figure 6 As shown, in this embodiment, a body 200 can be equipped with one air supply duct 300. Of course, in other embodiments, a body 200 can be equipped with multiple air supply ducts 300.

[0096] More specifically, such as Figure 6 As shown in the diagram, each air supply duct 300 may include a main pipe 330 and at least one branch pipe 340. One end of each branch pipe 340 is connected to the main pipe 330, and the other end is connected to the corresponding target space 400 to supply air to the target space 400.

[0097] When a unit 200 is equipped with one air supply duct 300, and there are multiple target spaces 400, a main pipe 330 and multiple branch pipes 340 can be used to supply air to different target spaces 400 (e.g., Figure 6 (As shown). When a unit 200 is paired with multiple air supply ducts 300, and there are many target spaces 400, each air supply duct 300 can include a main pipe 330, and is matched according to the number of target spaces 400 and the number of air supply ducts 300. Each air supply duct 300 can supply air to one of the target spaces 400 (e.g., ...). Figure 5 (As shown).

[0098] As a specific embodiment of this application, such as Figure 7 and Figure 8 As shown, each air supply duct 300 in this embodiment may include a wall-penetrating section 350. The wall-penetrating section 350 is used to pass through the cavity so that the end of the air supply duct 300 extends into the target space 400. The cross-section of the wall-penetrating section 350 is circular, and the diameter of the wall-penetrating section 350 is less than or equal to 160mm.

[0099] Specifically, in this embodiment, each air supply duct 300 needs to pass through the wall to enter the target space 400. Therefore, each air supply duct 300 in this embodiment may include a wall-penetrating section 350. In this embodiment, the wall-penetrating section 350 may be circular, and its diameter is less than or equal to 160mm. Furthermore, the diameter of the wall-penetrating section is designed to match the power of the air conditioner 100, which is greater than 1.5 horsepower. In this way, the power requirements of the air conditioner 100 are met, while also satisfying the requirement that the wall-penetrating hole cannot be too large.

[0100] Furthermore, most through-wall holes are circular in structure, so the through-wall section 350 in this embodiment is preferably circular.

[0101] As another specific embodiment of this application, the air supply duct 300 may include a wall-penetrating section 350, which is used to pass through the cavity so that the end of the air supply duct 300 extends into the target space 400. The ratio of the cross-sectional area of ​​the wall-penetrating section 350 to the power of the air conditioner 100 is less than or equal to 57.37 cm². 2 / kw, where the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200cm². 2 .

[0102] Specifically, in this embodiment, the ratio of the cross-sectional area of ​​the wall-penetrating section 350 of the air supply duct 300 to the power of the air conditioner 100 is less than or equal to 57.37 cm². 2 / kw. For example, when the power of the air conditioner 100 in the wall-penetrating section 350 of this embodiment is 1.5 horsepower or higher, the upper limit of the cross-sectional area of ​​the corresponding wall-penetrating section 350 is 200cm². 2 When the power of the air conditioner 100 is smaller, the cross-sectional area of ​​its wall-penetrating section 350 can be smaller. Specifically, the ratio of the cross-sectional area of ​​the wall-penetrating section 350 of the air supply duct 300 to the power is designed in this embodiment because, on the one hand, power has a significant limitation on the cross-sectional area, and the cross-sectional area of ​​the air supply duct 300 is fixed for a certain power; on the other hand, it is subject to the limitations of existing laws and regulations, and the cross-sectional area cannot be infinitely large.

[0103] Specifically, the cross-sectional shape of the wall-penetrating section 350 in this embodiment can be circular, square, or other shapes. Preferably, the shape of the wall-penetrating section 350 of the air conditioner 100 in this embodiment is circular, and the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200 cm². 2 That is, the diameter is less than or equal to 160mm.

[0104] As a specific embodiment of this application, such as Figures 7-10 As shown, each main pipe 330 and branch pipe 340 in this embodiment may include a pipe body 360 and a first partition 370. The first partition 370, located inside the pipe body 360, extends in a direction parallel to the extension direction of the pipe body 360, dividing the pipe body 360 into an outlet air duct 310 and a return air duct 320.

[0105] More specifically, in this embodiment, the cross-sectional areas of the outlet air duct 310 and the return air duct 320 are the same. This ensures that the air volume of the inlet and return air is equivalent.

[0106] This configuration allows the supply air duct 300 to form an integrated structure that includes both the outlet air duct 310 and the return air duct 320, reducing the need for additional pipes and connectors, making the entire system more compact, reducing the need for multiple independent pipes during installation, lowering installation complexity and time, and thus reducing costs. The integrated supply air duct 300 reduces potential air leakage and heat loss at pipe connections, improving the overall energy efficiency of the system. The first baffle 370 ensures optimized paths for both supply and return air, reducing airflow interference and improving airflow efficiency. The effective isolation provided by the first baffle 370 ensures the independence of return and supply air, reducing cross-contamination and improving indoor air quality.

[0107] When the air supply duct 300 includes a main pipe 330 and a branch pipe 340, the air outlet duct 310 of the main pipe 330 and the air outlet duct 310 of the branch pipe 340 are connected, and the return air duct 320 of the main pipe 330 and the return air duct 320 of the branch pipe 340 are connected.

[0108] Specifically, when the air supply duct 300 in this embodiment includes a main pipe 330 and a branch pipe 340, the wall penetration section 350 is located at the branch pipe 340.

[0109] More specifically, in this embodiment, the cross-section of the air supply duct 300 at the wall penetration section 350 can be designed as circular, while the ducts at other locations can be designed as circular (e.g., Figure 9 (as shown) or other shapes. For example, the pipe between the through-wall section 350 and the fuselage 200 can be designed as square, such as rectangular (as shown). Figure 10(As shown) or square. This design makes the air supply duct 300 more aesthetically pleasing and easier to install when it is outside the wall, and it also better matches the wall penetration hole in the wall penetration section 350.

[0110] As a specific embodiment of this application, the air supply duct 300 in this embodiment is provided with a heat insulation layer (not shown in the figure) on its wall. The heat insulation layer can keep the gas inside the air supply duct 300 warm and isolate it from the ambient temperature, reducing the influence of the external environment on the temperature of the transported gas during the transport process.

[0111] As a specific embodiment of this application, such as Figure 9 and Figure 10 As shown, the air supply duct 300 in this embodiment is formed by one or more duct units 380. When the air supply duct 300 is formed by connecting multiple duct units 380 together, the multiple duct units 380 are interlocked to form the entire duct. Specifically, a retaining ring 390 is provided at the connection position between the duct units 380 (e.g., Figure 9 As shown), the retaining ring 390 snaps the ends of the pipe units 380 on both sides together and seals them.

[0112] As a specific embodiment of this application, such as Figure 11 and Figure 12 As shown, each air supply duct 300 in this embodiment is provided with an air outlet duct 500 at its end, which is connected to the air outlet duct 310. The extension direction of the air outlet duct 500 is parallel to the air outlet direction of the air outlet duct 310. An air outlet 510 is provided at the air outlet duct 500. The gas in the air outlet duct 310 flows into the air outlet duct 500 and is blown out from the air outlet 510.

[0113] Specifically, in this embodiment, an air outlet duct 500 is provided at the end of the air supply duct 300. When the gas is delivered to the target space 400 by the air supply duct 300, it is then blown out through the air outlet duct 500. The position and direction of the gas flow can be controlled by the air outlet duct 500.

[0114] Specifically, in this embodiment, the direction in which the air outlet duct 500 extends is parallel to the direction of air outlet, which can minimize the loss of gas energy.

[0115] In addition, the cross-sectional area of ​​the outlet duct 500 in this embodiment is larger than the cross-sectional area of ​​the end of the supply duct 300, so as to avoid gas energy loss and turbulence.

[0116] Specifically, in this embodiment, the air outlet 510 is located on the side wall of the air outlet duct 500, which is parallel to the extension direction. This ensures that the direction of the final blown gas is perpendicular to the extension direction of the air outlet duct 500.

[0117] Of course, in other embodiments, the air outlet 510 and the air outlet direction can be adaptively adjusted to meet different air outlet requirements.

[0118] Specifically, when the air supply duct 300 includes a main pipe 330 and a branch pipe 340, each branch pipe 340 that delivers air to the target space 400 is connected to an air outlet duct 500 at its end.

[0119] As a specific embodiment of this application, such as Figure 13-16 As shown, in this embodiment, the air outlet duct 500 is provided with at least one first baffle 520 that is substantially perpendicular to the extending direction of the air outlet duct 500. Each first baffle 520 is provided with at least one first through hole 521. At least part of the gas in the air outlet duct 500 passes through the first through hole 521 of the first baffle 520 and is then blown out from the air outlet 510.

[0120] Specifically, in this embodiment, at least one first baffle 520 is provided inside the air outlet duct 500 to block the gas inside the air outlet duct 500, thereby preventing most or almost all of the gas inside the air outlet duct 500 from being blown to the end of the air outlet duct 500 and then blown out from the air outlet 510, thus avoiding uneven air outlet.

[0121] Preferably, in this embodiment, a plurality of first baffles 520 are provided inside the air outlet duct 500, and the plurality of first baffles 520 are arranged at intervals along the extension direction of the air outlet duct 500.

[0122] Specifically, by setting multiple first baffles 520 inside the air outlet duct 500 along its extension direction, the air volume blown out from the air outlet 510 can be further optimized, thereby further improving the uniformity of the airflow.

[0123] As a specific embodiment of this application, at least a portion of the outer periphery of the first baffle 520 is in contact with the inner wall of the air outlet duct 500, thus ensuring that all the gas flowing through the first baffle 520 passes through the first through hole 521 of the first baffle 520 before flowing to the rear.

[0124] Specifically, at least a portion of the outer periphery of each first baffle 520 contacts the inner wall of the air outlet duct 500.

[0125] Specifically, the outer periphery of each first baffle 520 contacts the side wall of the air outlet duct 500 where the non-air outlet is located.

[0126] Specifically, the shape of the first through hole 521 in this embodiment can be circular, elliptical, square, or other shapes. Preferably, the shape of the first through hole 521 in this embodiment is circular.

[0127] Preferably, all the first baffles 520 in this embodiment are arranged in parallel to each other.

[0128] Preferably, in this embodiment, all the first baffles 520 are perpendicular to the extension direction of the air outlet duct 500, and the shape of all the first baffles 520 is consistent with the cross-sectional shape of the side wall of the air outlet duct 500.

[0129] As a specific embodiment of this application, the proportion of the cross-section of the first through hole 521 of the first baffle 520 to the total cross-sectional area of ​​the first baffle 520 gradually increases from the position of the air outlet duct 310 to the position away from the air outlet duct 310.

[0130] Specifically, since the wind speed is higher near the air outlet duct 310 and lower far from the air outlet duct 310, this design ensures that the wind speed of the gas blown out by the air outlet duct 500 is similar near the air outlet duct 310 and far from the air outlet duct 310, resulting in good uniformity of the blown gas and improving the user experience.

[0131] Specifically, the cross-sectional area of ​​the first through hole 521 of the first baffle 520 in this embodiment can be changed by altering the number of first through holes 521, or by changing the cross-sectional area of ​​each first through hole 521.

[0132] As a specific embodiment of this application, the density of the first baffle 520 in this embodiment gradually decreases in the direction from the position close to the air outlet duct 310 to the position far away from the air outlet duct 310.

[0133] Specifically, in this embodiment, the density of the first baffles 520 near the air outlet duct 310 is set to be large, while the density of the first baffles 520 far from the air outlet duct 310 is set to be small. This makes the airflow near the air outlet duct 310 and the airflow far from the air outlet duct 310 have similar speeds, thereby making the uniformity of the gas blown out of the air outlet 510 good.

[0134] As a specific embodiment, the density of the first baffle 520 set at the air outlet duct 500 and the cross-sectional area of ​​the first through hole 521 at the first baffle 520 can be designed according to the situation, so that the uniformity of the gas blown out of the air outlet 510 of the air outlet duct 500 is good.

[0135] More specifically, the diameter of the first through hole 521 at the first baffle 520 in this embodiment is adjustable. In this way, by changing the total cross-section of the first through hole 521 at each first baffle 520, the ratio of the total cross-sectional area of ​​the first through hole 521 to the cross-section of the first baffle 520 can be changed, thereby further improving the uniformity of the air output.

[0136] In another embodiment, the first baffle 520 of this embodiment can be set with different areas at different distances from the air outlet duct 310, so as to further increase the uniformity of the air outlet.

[0137] As a specific embodiment of this application, such as Figure 13-16 As shown, in this embodiment, a second baffle 530 is provided at the air outlet 510 of the air outlet duct 500. The second baffle 530 is provided with at least one second through hole 531, through which the gas from the air outlet duct 500 is blown out.

[0138] Specifically, in this embodiment, a first through hole 521 of a first baffle 520 is provided at the air outlet duct 500, and a second baffle 530 is provided at the air outlet 510, with a second through hole 531 provided at the second baffle 530, to further increase the uniformity of air outlet from the air outlet duct 500.

[0139] As a specific embodiment of this application, a third baffle 540 is also provided at the air outlet 510 of the air outlet duct 500 in this embodiment. The third baffle 540 is located outside the second baffle 530 so that the gas blown out from the second baffle 530 passes through the third baffle 540 and is then blown out.

[0140] Specifically, in this embodiment, the gas blown out from the second baffle 530 passes through the third baffle 540 before being blown out again, further improving the uniformity of the airflow.

[0141] Specifically, the third baffle 540 in this embodiment can be designed as a filter structure (e.g. Figure 11 and 12 As shown), the filter structure of this embodiment can be obtained by setting a filter screen in the center of the frame structure. As another specific embodiment, the third baffle 540 of this embodiment can be designed as a horizontal strip-shaped grid structure (e.g., Figure 13 and Figure 14 As shown), the direction of airflow can be adjusted by changing the number and direction of the grid lines. As another specific embodiment, the third baffle 540 of this embodiment can also be designed as a perforated partition structure (e.g., Figure 15 and Figure 16 As shown in the figure, the size and distribution of the holes on the partition can be designed according to the actual situation. Specifically, in this embodiment, a first baffle 520, a second baffle 530 and a third baffle 540 are provided at the air outlet duct 500. The three components achieve three-level uniform airflow, which makes the air blown out from the air outlet duct 500 more uniform and almost windless, thus improving the user experience.

[0142] As a specific embodiment of this application, such as Figure 17 and Figure 18As shown, in this embodiment, the air outlet duct 500 is also provided with a baffle plate 550 and air guiding mechanisms 560 located on both sides of the baffle plate 550 at the air outlet 510. The air guiding mechanism 560 guides the gas blown out of the air outlet 510 to the side away from the baffle plate 550.

[0143] Specifically, in this embodiment, a baffle plate 550 and a guide mechanism 560 are provided at the air outlet 510 of the air outlet duct 500. The baffle plate 550 is located in the middle of the air outlet 510, while the guide mechanism 560 guides the air blown out of the air outlet 510 to a position away from the middle, thereby preventing the air in the air blown out of the air outlet 510 from blowing directly at the user, thereby improving the user experience.

[0144] Specifically, in this embodiment, the air guide mechanism 560 can be rotatably connected to the wall of the air outlet duct 500, thereby controlling the direction of the gas blown out from the air guide mechanism 560 by controlling the rotation of the air guide mechanism 560.

[0145] Specifically, the air guiding mechanism 560 in this embodiment may include multiple parallel air guiding blades, each of which can rotate. The multiple air guiding blades can rotate individually or in conjunction with each other.

[0146] As a specific embodiment of this application, such as Figure 11 As shown, the air outlet duct 500 of this embodiment may include multiple interconnected and communicating air outlet modules 501. Adjacent air outlet modules 501 are snap-fitted together. Each air outlet module 501 may have a first baffle 520 extending vertically. A second baffle 530 and a third baffle 540 are provided at the air outlet 510 of each air outlet module 501. A baffle plate 550 and an air guide mechanism 560 are also provided at the air outlet 510 of each air outlet module 501.

[0147] As a specific embodiment of this application, such as Figure 19 As shown in Figure 20, the air outlet duct 500 of this embodiment may also include a side wall 570, which is installed at the target object to be installed, so that the air outlet duct 500 is exposed on the surface where the air outlet 510 is located when it is installed on the target object.

[0148] Specifically, the target object in this embodiment can be a specific object in the target space 400, such as a room or a cabinet. As one embodiment, when the air outlet duct 500 is installed on the target object, only the air outlet 510 of the air outlet duct 500 is exposed (e.g., ...). Figure 19 , Figure 21 and Figure 22 As shown, this makes the exhaust duct 500 and the target object look harmonious from the outside, thus making the exhaust duct 500 look beautiful when installed on the target object.

[0149] Specifically, in this embodiment, the plane where the air outlet 510 of the air outlet duct 500 is located can form a substantially continuous plane or curved surface with the exposed surface 601 of the target object 600 located on one side of the air outlet 510.

[0150] For example, when the cross-section of the air outlet duct 500 is triangular (e.g.) Figure 19 As shown), when the target object is the interior wall of the room, it can be set at the position between the top and side wall 570 of the room, with only the air outlet 510 exposed. The plane where the air outlet 510 is located forms a continuous zigzag plane with the surface of the top and side wall.

[0151] When the cross-section of the 500mm exhaust duct is quadrilateral, such as Figure 20 Two of the sides can be installed on the top and side wall 570 of the target object 600, while the other two sides can have an air outlet 510 set in one place or both places.

[0152] Preferably, when the cross-section of the air outlet duct 500 is quadrilateral, such as... Figure 21 and Figure 22 As shown, the plane where the air outlet 510 is located and the exposed surfaces of the target object around the air outlet 510 form a basically continuous plane or curved surface.

[0153] More preferably, such as Figure 22 As shown, the plane where the air outlet 510 is located in this embodiment is on the same plane as the exposed surface of the target object near the air outlet 510.

[0154] As a specific embodiment of this application, such as Figure 23 and Figure 24 As shown, an installation structure is provided at the side wall 570 of the air outlet duct 500 in this embodiment. The installation structure may include a magnetic structure or a snap-fit ​​structure to attract or snap with the bracket 580 at the target object 600, thereby allowing the air outlet duct 500 to be installed at the target object 600. Specifically, one bracket 580 can install one air outlet module 501, or multiple air outlet modules 501 can be installed.

[0155] Specifically, such as Figure 24 As shown, in this embodiment, a bracket 580 is provided with a snap-fit ​​structure 581, and a corresponding structure is provided on the side wall 570 of the air outlet duct 500 to engage with the snap-fit ​​structure 581. When installing the air outlet duct 500, the bracket 580 can be first fixed to the target object, and then the air outlet duct 500 can be snapped into the snap-fit ​​structure 581 of the bracket 580. In this embodiment, the bracket 580 can simultaneously install two air outlet modules 501.

[0156] Of course, as other embodiments, the installation structure can be in other forms such as snap-fit, which cooperates with the installation structure on the target object, so that the air outlet duct 500 can be installed on the target object quickly and flexibly.

[0157] As a specific embodiment of this application, the cross-section of the air outlet duct 500 is a right-angled triangle, with the hypotenuse being the outlet surface and the two right-angled sides being the mounting or contact surfaces. The two right-angled sides are respectively attached to the top and side walls of the room (i.e., the target object), with only the surface containing the air outlet 510 exposed. Mounting components can also be installed on the right-angled sides for installation on the top and / or side walls.

[0158] The specific structure of the fuselage will be described below with reference to the accompanying drawings. For ease of description, the height direction of the fuselage 200 will be taken as the z-direction, the width direction of the fuselage 200 as the x-direction, and the depth direction of the fuselage 200 as the y-direction.

[0159] As a specific embodiment of this application, such as Figure 25 and Figure 26 As shown, the housing 210 of this embodiment may include a second partition 260, which divides the housing 210 into a first receiving cavity 211 located above and a second receiving cavity 212 located below. The evaporator 220 and the first fan 250 are located in the first receiving cavity 211, and the condenser 230 is located in the second receiving cavity 212.

[0160] Specifically, in this embodiment, the housing 200 can be provided with a second partition 260, which divides the housing 210 into two receiving cavities. These two cavities are respectively equipped with an evaporator 220 and a condenser 230. In this embodiment, in the z-direction, the evaporator 220 is located in the upper first receiving cavity 211, which is connected to the air supply duct 300. This allows gas to exchange heat through the evaporator 220 before flowing out through the air supply duct 300 into the target space 400. The condenser 230, located in the second receiving cavity 212, exchanges heat with the liquid in the evaporator 220, ensuring the evaporator 220 reaches a suitable heat exchange temperature. The second partition 260 also prevents gas from passing through both the space containing the evaporator 220 and the space containing the condenser 230, thus avoiding any impact on the heat exchange effect.

[0161] More specifically, in this embodiment, at least one third through hole (not shown in the figure) is provided at the second partition 260, and the third through hole is located at a position corresponding to the location of the condenser 230. Specifically, since condensate easily forms in the evaporator 220 when exchanging heat with the gas, the condensate will flow down the evaporator 220 and drip below. A drip tray can be provided below the evaporator 220, or the second partition 260 can serve as the drip tray. In this embodiment, the third through hole at the second partition 260 allows the condensate to drip down along the third through hole. Since the third through hole is located above the condenser 230, the condensate directly drips onto the condenser 230, thereby cooling the condenser 230 and improving the overall energy efficiency of the unit.

[0162] In another specific embodiment of this application, the second partition 260 is inclined, and the second partition 260 is inclined toward the side where the condenser 230 is located. Specifically, the second partition 260 in this embodiment can be set at an inclination angle, so that the condensate can flow along the second partition 260 to one side and eventually drip onto the condenser 230, thereby cooling the condenser 230 and improving the overall energy efficiency of the unit.

[0163] By placing the evaporator 220 and condenser 230 in separate chambers, thermal interference between them can be effectively reduced, improving heat exchange efficiency. It also ensures that the evaporator 220 and condenser 230 operate under their respective optimal temperature conditions, improving system performance. The separated chamber design allows for independent management of airflow in the evaporator 220 and condenser 230. By reducing mutual heat interference, the evaporator 220 can cool more efficiently, and the condenser 230 can release heat more efficiently. Optimizing operating conditions and reducing thermal interference reduces equipment wear and extends service life. The presence of the second partition 260 helps isolate noise sources, reducing noise transmission during the operation of the evaporator 220 and condenser 230, improving user experience. The separated chamber design makes maintenance and repair of each component more convenient, reducing maintenance costs.

[0164] See also Figure 26 As shown, the housing 210 of this embodiment is provided with a first opening 2111 and a second opening 2112. The first fan 250 includes a return air port and an air outlet. The air outlet faces the first opening 2111, the return air port is connected to the evaporator 220, the air outlet of the first fan 250 is connected to the air outlet duct 310 through the first opening 2111, and the return air duct 320 is connected to the second opening 2112.

[0165] As a specific embodiment of this application, the housing 210 of this embodiment may further include a third partition 270 disposed in the first receiving cavity 211. The third partition 270 divides the first receiving cavity 211 into a first sub-cavity 213 and a second sub-cavity 214 disposed along the x-direction. An evaporator 220 is disposed in the first sub-cavity 213, and a first fan 250 is disposed in the second sub-cavity 214. An air outlet duct 310 is connected to the second sub-cavity 214 through a first opening 2111, and a return air duct 320 is connected to the first sub-cavity 213 through a second opening 2112. A third opening 271 is provided at the third partition 270 so that the air flowing into the first sub-cavity 213 from the return air duct 320 is heat-exchanged by the evaporator 220 and then flows to the second sub-cavity 214 through the third opening 271. The first fan 250 then blows the gas into the air outlet duct 310.

[0166] In this embodiment, the first receiving cavity 211 is divided into a first sub-cavity 213 and a second sub-cavity 214 by a third partition 270. This allows the inlet of the exhaust air duct 310 to be connected to the second sub-cavity 214, while the outlet of the return air duct 320 is connected to the first sub-cavity 213. This separates the exhaust gas from the return gas, preventing gas from flowing into the exhaust air duct 310 without heat exchange, which would affect the exhaust temperature.

[0167] By providing a third opening 271 on the third partition 270, airflow can be effectively directed from the evaporator 220 to the first fan 250, ensuring optimized airflow path and improving airflow efficiency. The presence of the third partition 270 helps reduce airflow turbulence and disturbances, ensuring smooth airflow and reducing energy consumption. By separating the evaporator 220 and the first fan 250 into different sub-cavities, the mutual influence of heat is reduced, allowing the evaporator 220 to perform heat exchange more efficiently.

[0168] Furthermore, in this embodiment, a third opening 271 is provided at the third partition 270, and the first fan 250 can be a centrifugal fan. The air inlet of the centrifugal fan is located at the third opening 271, and the air outlet 510 of the centrifugal fan can be directly connected to the inlet of the air outlet duct 310, directly blowing the gas in the first sub-cavity 213 into the air outlet duct 310.

[0169] More specifically, in this embodiment, a fresh air inlet (not shown in the figure) is provided on the side wall of the first receiving cavity 211, and a fresh air valve (not shown in the figure) is provided at the fresh air inlet so that when the fresh air valve is opened, the first fan 250 blows part of the gas flowing from the first sub-cavity 213 into the second sub-cavity 214 and part of the fresh air entering from the fresh air inlet into the air outlet duct 310.

[0170] Specifically, in this embodiment, a fresh air inlet is provided on the side wall of the first receiving cavity 211. When the centrifugal fan blows the gas from the first sub-cavity 213 into the air outlet duct 310, due to the negative pressure, outside air will enter the second sub-cavity 214 through the fresh air inlet and then be blown into the air outlet duct 310 by the centrifugal fan.

[0171] Specifically, a fresh air valve is installed at the fresh air inlet. When the temperature difference between indoors and outdoors is small, the fresh air valve can be opened so that the fresh air and the gas in the first sub-cavity 213 are blown into the air outlet duct 310 and then into the target space. When the temperature difference between indoors and outdoors is large, the fresh air valve can be closed so that only the gas in the first sub-cavity 213 is blown into the target space.

[0172] Specifically, in this embodiment, the fresh air inlet and fresh air valve can be located on the side wall of the first sub-cavity 213 or on the side wall of the second sub-cavity 214. Preferably, the fresh air inlet and fresh air valve are located on the side wall of the first sub-cavity 213, so that the fresh air can pass through the evaporator 220 together with the gas flowing in through the return air duct 320 for heat exchange before being blown into the outlet air duct 310 by the centrifugal fan.

[0173] As a specific embodiment of this application, the second receiving cavity 212 may further include a fourth partition 280, which divides the second receiving cavity 212 into a third sub-cavity 215 and a fourth sub-cavity 216. The evaporator 220 is located in the third sub-cavity 215, and the compressor 240 is located in the fourth sub-cavity 216. The third sub-cavity 215 may further include a motor and a second fan 290, which drives the second fan 290 to rotate to dissipate heat from the condenser 230. The second motor drives the second fan 290 to rotate, and the second fan 290 carries away heat from the condenser 230 during rotation, preventing the condenser 230 from overheating.

[0174] As a specific embodiment of this application, at least one side wall of the third sub-cavity 215 is provided with an air outlet 217, and a grille 218 is provided at the air outlet 217. The condenser 230 is arranged around the side wall of the third sub-cavity 215 that is not at the air outlet 217. Specifically, the grille 218 in this embodiment can, on the one hand, prevent external dust from entering the second receiving cavity 212, and on the other hand, protect the outside world from causing harm to personnel outside the fan.

[0175] In this embodiment, the positions of the first sub-cavity 213 and the second sub-cavity 214 in the x-direction are not limited. Similarly, the positions of the third sub-cavity 215 and the fourth sub-cavity 216 in the x-direction are also not limited. For example, in the z-direction, the first sub-cavity 213 can be located at the top of the third sub-cavity 215 or at the top of the fourth sub-cavity 216. The specific location can be determined according to specific requirements, and no further limitation is made in this embodiment.

[0176] Specifically, the second fan 290 in this embodiment can be an axial flow fan.

[0177] As a specific embodiment of this application, the air intake volume of the perforated air supply duct 300 in this embodiment is 650m³. 3 / h~11000m 3 / h. For example, the intake air volume can be 650 m³ / h. 3 / h, 700m 3 / h, 750m 3 / h、800m 3 / h、900m 3 / h, 1000m 3 / h or 1100m 3 / h etc.

[0178] Specifically, when the fresh air valve in this embodiment is closed, and the air is in complete internal circulation, and the wall penetration section 350 of the air inlet duct is limited to a diameter of 160mm, the air intake volume in this embodiment can reach 650m³ / h. 3 / h~700m 3 / h. When the fresh air valve in this embodiment is opened, combined with the internal circulation and external fresh air, the air intake volume of the air intake duct in this embodiment can reach 1100m³ / h. 3 / h or even higher. Specifically, the intake air volume is related to the diameter of the intake duct and the power of the centrifugal fan. Of course, the size of the fresh air inlet will also have a certain impact on the intake air volume.

[0179] In the above embodiment, the evaporator 220 is installed vertically, and the airflow entering the first sub-cavity 213 from the return air duct 320 through the second opening 2112 passes directly through the evaporator 220 and can flow to the second sub-cavity 214 through the third opening 271, and then the first fan 250 blows the gas into the outlet air duct 310.

[0180] Of course, in other embodiments, the evaporator 220 may also be inclined, and in order to allow the airflow from the return air duct 320 to enter the first sub-cavity 213 through the second opening 2112 to fully contact the evaporator 220 before entering the return air inlet of the first fan, the body may be configured with other structures.

[0181] like Figure 27 As shown, the housing 210 of this embodiment is provided with a first opening 2111 and a second opening 2112. The first fan 250 includes a return air inlet (not shown in the figure) and an air outlet 251. The air outlet 251 of the first fan 250 faces the first opening 2111, the return air inlet is connected to the evaporator 220, the air outlet 251 of the first fan 250 is connected to the air outlet duct 310 through the first opening 2111, and the return air duct 320 is connected to the second opening 2112.

[0182] For example, the first opening 2111 and the second opening 2112 can both be located on the top (z direction) of the housing 210, which facilitates connection with the air supply duct 300. In addition, the first opening 2111 and the second opening 2112 are two independent openings, which are respectively connected to the air outlet duct 310 and the air return duct 320.

[0183] Of course, in other embodiments, the first opening 2111 and the second opening 2112 may also be provided on the front sidewall 210a or the rear sidewall 210b of the fuselage 200 (see Figure 25 As shown in the figure, these are the two sidewalls in the y-direction. In this embodiment, the positions of the first opening 2111 and the second opening 2112 are not further limited.

[0184] Combination Figure 27 and Figure 28 As shown, a guide vane 219 may also be provided inside the housing 210. The guide vane 219 is located on top of the evaporator 220, and a guide channel 2191 is formed between the portion of the housing 210 and the guide vane 219 on the side of the guide vane 219 facing away from the evaporator 220. The second opening 2112 communicates with the guide channel 2191. The guide vane 219 is provided with a plurality of guide holes 2192 that communicate with the side of the evaporator 220 facing away from the first fan 250, and the side of the evaporator 220 facing the first fan 250 communicates with the return air vent.

[0185] Specifically, the air guide plate 219 is disposed inside the housing 210. The outer periphery of the air guide plate 219 is connected to the inner wall of the housing 210, and the top wall of the air guide plate 219 is spaced apart from the top wall of the housing 210. In this way, an air guide channel 2191 can be formed between the air guide plate 219 and the top wall of the housing 210.

[0186] By providing an air guide plate 219 inside the housing 210, and forming an air guide channel 2191 between the side of the air guide plate 219 facing away from the evaporator 220 and the housing 210, and by providing multiple air guide holes 2192 on the air guide plate 219 that communicate with the side of the evaporator 220 facing away from the first fan 250, the air guide plate 219 can guide airflow across the entire surface of the evaporator 220, ensuring a more efficient heat exchange process. This prevents airflow entering the housing 210 from the return air duct 320 from being directly drawn into the return air inlet of the first fan 250 and then discharged again. In other words, it ensures that the airflow entering the housing 210 through the return air duct 320 can uniformly pass through the evaporator 220 for heat exchange before re-entering the first fan 250, ensuring sufficient airflow circulation. Furthermore, the air guide channel 2191 helps to evenly distribute the cold air passing through the evaporator 220, reducing airflow turbulence and unevenness.

[0187] See also Figure 28 As shown, the evaporator 220 is set at an angle to the height direction (z-direction) of the body 200, and the top of the evaporator 220 is inclined towards the first fan 250. Air guide walls 272 are provided at both ends of the evaporator 220 along the y-direction. An airflow channel 273 is formed between the air guide walls 272, the side of the evaporator 220 facing the first fan 250, and the return air inlet. This airflow channel 273 allows the airflow passing through the evaporator 220 to enter the return air inlet, improving the efficiency of the fan and the overall system energy efficiency.

[0188] Of course, in other embodiments, the evaporator 220 may not be inclined; for example, the evaporator 220 may be installed vertically (e.g., Figure 26 As shown in the figure, in this embodiment of the application, the tilt angle of the evaporator 220 is not further limited.

[0189] In this embodiment, by tilting the evaporator 220, the contact area of ​​air flowing over it can be increased, thereby improving heat exchange efficiency. The tilted design helps guide airflow more evenly across the surface of the evaporator 220, ensuring more efficient heat transfer. The tilted evaporator 220 design facilitates the natural flow and drainage of condensate, reducing water accumulation and lowering the risk of mold and bacteria growth. The tilted design reduces airflow resistance, improving fan efficiency and overall system energy efficiency. By optimizing the airflow path, turbulence and airflow collisions are reduced, thus lowering operating noise. Furthermore, the tilted arrangement allows for more fins to be installed within the same vertical space, increasing the heat exchange area of ​​the evaporator 220. For an evaporator 220 of the same size, the tilted arrangement reduces the vertical space occupied, contributing to a more compact equipment layout and saving space.

[0190] In this embodiment, the air guide channel 2191 can be located at the top of the first sub-cavity 213, and multiple air guide holes 2192 are all connected to the first sub-cavity 213. Airflow from the return air duct 320 into the air guide channel 2191 enters the first sub-cavity 213 through the air guide holes 2192, undergoes heat exchange in the evaporator 220, and then flows through the third opening 271 to the second sub-cavity 214. Finally, the first fan 250 blows the gas into the outlet air duct 310.

[0191] By positioning the air duct 2191 at the top of the first sub-cavity 213, heat loss of air before entering the evaporator 220 can be reduced, as hot air naturally rises and cold air naturally sinks; this design utilizes the natural flow characteristics of air. With top-mounted return air, indoor air can circulate more effectively, avoiding air stagnation or dead zones, thereby improving indoor air quality and comfort. When the return air duct 320 is located at the top of the evaporator 220, air can flow more evenly across the surface of the evaporator 220, thus improving heat exchange efficiency. This helps to cool or heat air more quickly, improving the overall performance of the air conditioner 100.

[0192] like Figure 29 As shown, multiple air guide holes 2192 are spaced apart along the airflow direction of the air guide channel 2191. The airflow direction is the approximate direction of airflow within the air guide channel 2191, or the direction from the second opening 2112 to the air guide hole 2192, indicated by a dashed line with an arrow in the figure. Along the airflow direction of the air guide channel 2191, the outlet area of ​​at least some of the air guide holes 2192 is positively correlated with the distance L from the air guide hole 2192 to the second opening 2112. That is, the farther a portion of the air guide hole 2192 is from the second opening 2112, the larger its outlet area.

[0193] Taking the air guide plate 219 in the x direction as an example, which includes three air guide holes 2192, the first air guide hole is closest to the second opening 2112, the third air guide hole is farthest from the second opening 2112, and the second air guide hole is located between the first air guide hole and the second air guide hole.

[0194] In some embodiments, the opening area of ​​the first air guide hole can be the same as the opening area of ​​the second air guide hole, and the area of ​​the third air guide hole is larger than the opening areas of the first and second air guide holes. In other embodiments, the opening area of ​​the first air guide hole can be larger than the opening area of ​​the second air guide hole, and the area of ​​the third air guide hole can be larger than the opening area of ​​the second air guide hole.

[0195] It should be noted that the air outlet area of ​​the air guide hole 2192 can be understood as the area that the air guide hole 2192 can ventilate, or it can be understood as the opening area of ​​the air guide hole 2192.

[0196] By gradually increasing the outlet area of ​​the air guide vents 2192, it is ensured that the airflow is evenly distributed throughout the entire air guide channel 2191, avoiding excessively strong or weak airflow in certain areas. This design effectively prevents excessive concentration of airflow near the inlet, thereby reducing short-circuiting and ensuring sufficient air circulation throughout the space. A more uniform airflow distribution allows air to make more thorough contact with the surface of the evaporator 220, improving heat exchange efficiency.

[0197] In one possible implementation, multiple air guide holes 2192 arranged side-by-side may be located at the same distance from the second opening 2112 along the airflow direction of the air guide channel 2191. The total air outlet area of ​​the multiple air guide holes 2192 located in the same row is positively correlated with the distance from the air guide hole 2192 to the second opening 2112. Specifically, some of the multiple air guide holes 2192 may be smaller, while others may be larger, but the total air outlet area of ​​the multiple air guide holes 2192 is positively correlated with the distance from the air guide hole 2192 to the second opening 2112.

[0198] This configuration, by gradually increasing the outlet area along the airflow direction, balances the airflow pressure, ensuring a uniform airflow distribution throughout the entire airflow channel 2191. It prevents excessive airflow concentration near the inlet, ensuring uniform airflow across the entire evaporator 220 surface and improving heat exchange efficiency. The uniform airflow distribution allows for more thorough contact between the air and the evaporator 220 surface, increasing the heat exchange area and efficiency. Furthermore, the uniform airflow reduces the temperature gradient between different areas of the evaporator 220 surface, improving the overall cooling effect.

[0199] Of course, in some other embodiments, a vent 2192 may be included at the same location as the second opening 2112, and the opening size of the vent 2192 is larger the farther away from the second opening 2112.

[0200] In other embodiments, such as Figure 30 As shown, at least a portion of the structure of the air guide plate 219 is inclined. Specifically, in the airflow direction of the air guide channel 2191, from the end of the air guide channel 2191 near the second opening 2112 to the end of the air guide channel 2191 away from the second opening 2112, the dimension h of the air guide channel 2191 in the height direction (z-direction) of the fuselage 200 gradually increases. That is, the farther away from the second opening 2112, the larger the dimension of the air guide channel 2191.

[0201] This configuration allows the height of the air guide channel 2191 to gradually increase from the end near the second opening 2112 to the end away from the second opening 2112. As the height of the air guide channel 2191 gradually increases, the channel area for airflow increases, which helps balance airflow pressure and ensures uniform airflow distribution throughout the channel. This also prevents excessive airflow concentration near the inlet, ensuring that air flows evenly across the entire surface of the evaporator 220. A more uniform airflow distribution allows air to make more thorough contact with the surface of the evaporator 220, increasing the heat exchange area and efficiency. Uniform airflow reduces the temperature gradient between different areas of the evaporator 220 surface, improving the overall cooling effect. The gradually increasing channel size helps to smooth the airflow, reducing turbulence and airflow collisions, thereby reducing operating noise. Optimizing the airflow path reduces abrupt changes in airflow velocity, further reducing noise generation.

[0202] It should be noted that, in this embodiment, the body structure, except for the evaporator 220, the air guide plate 219, and the air guide channel 2191, can be the same as that in other aspects. Figure 25 and Figure 26 The structures, principles, and connections of the embodiments shown are the same. Therefore, for the structures on the body other than the evaporator 220, the air guide plate 219, and the air guide channel 2191, the same principle applies. Figure 25 and Figure 26 The description of the embodiments in this application will not be repeated here.

[0203] Therefore, those skilled in the art should recognize that although many exemplary embodiments of this application have been shown and described in detail herein, many other variations or modifications conforming to the principles of this application can be directly determined or derived from the disclosure of this application without departing from the spirit and scope of this application. Thus, the scope of this application should be understood and construed as covering all such other variations or modifications.

Claims

1. An air conditioner, characterized in that, include: The air supply duct is equipped with an outlet air duct and a return air duct. The unit includes a housing, an evaporator, and a first fan disposed within the housing. The housing has a first opening and a second opening. The first fan includes a return air inlet and an air outlet. The air outlet communicates with the air outlet duct through the first opening, and the return air duct communicates with the second opening. The housing also includes an air guide plate, which is located at the top of the evaporator. An air guide channel is formed between the housing and the air guide plate on the side of the air guide plate facing away from the evaporator. The second opening is connected to the air guide channel. The air guide plate is provided with a plurality of air guide holes that are connected to the side of the evaporator away from the first fan, and the side of the evaporator facing the first fan is connected to the return air inlet.

2. The air conditioner according to claim 1, characterized in that, The plurality of air guide holes are spaced apart along the airflow direction of the air guide channel; In the airflow direction of the air guide channel, at least a portion of the air outlet area of ​​the air guide hole is positively correlated with the distance from the air guide hole to the second opening.

3. The air conditioner according to claim 2, characterized in that, In the airflow direction of the airflow channel, a plurality of airflow holes are arranged side by side at the same distance from the second opening; The total air outlet area of ​​the multiple air guide holes located in the same row is positively correlated with the distance from the air guide hole to the second opening.

4. The air conditioner according to any one of claims 1-3, characterized in that, At least a portion of the structure of the air guide plate is inclined; wherein, In the airflow direction of the air guide channel, from the end of the air guide channel near the second opening to the end of the air guide channel away from the second opening, the size of the air guide channel gradually increases in the height direction of the fuselage.

5. The air conditioner according to any one of claims 1-3, characterized in that, The evaporator is set at an angle to the height of the body, and the top of the evaporator is tilted towards the first fan.

6. The air conditioner according to any one of claims 1-3, characterized in that, The air supply duct is equipped with a first baffle; wherein... The first partition extends in a direction parallel to the direction in which the air supply duct extends, dividing the air supply duct into the outlet air duct and the return air duct.

7. The air conditioner according to any one of claims 1-3, characterized in that, The housing also houses a condenser and a compressor; wherein... One end of the air supply duct is connected to the machine body, and the other end extends to the target space; The gas that has been heated by the compressor is blown into the air outlet duct by the first fan and then flows into the target space. The gas in the target space enters the housing through the return air duct.

8. The air conditioner according to claim 7, characterized in that, The housing includes a second partition, which divides the housing into an upper first receiving cavity and a lower second receiving cavity; The evaporator and the first fan are located in the first receiving cavity, and the condenser is located in the second receiving cavity.

9. The air conditioner according to claim 8, characterized in that, The housing also includes a third partition disposed within the first receiving cavity, the third partition dividing the first receiving cavity into a first sub-cavity and a second sub-cavity; The evaporator is disposed in the first sub-cavity, and the first fan is disposed in the second sub-cavity; The third partition is provided with a third opening, which is used to connect the first sub-cavity and the second sub-cavity.

10. The air conditioner according to claim 9, characterized in that, The air guide channel is located at the top of the first sub-cavity, and all of the plurality of air guide holes are connected to the first sub-cavity; wherein, The airflow from the return air duct into the air guide channel enters the first sub-cavity through the air guide hole, undergoes heat exchange in the evaporator, and then flows to the second sub-cavity through the third opening. The first fan then blows the gas into the air outlet duct.

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