Air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner. The air conditioner provided by the utility model comprises a machine body; the air supply pipeline is internally provided with an air inlet duct and an air return duct which are arranged side by side, the first end of the air supply pipeline is connected with the machine body, and the second end of the air supply pipeline is provided with an air inlet communicated with the air inlet duct and an air return port communicated with the air return duct; the air outlet pipeline is connected to the air inlet and exposed out of the air return port, the air outlet pipeline comprises an air outlet face provided with an air outlet, the projection of the air outlet face in the reference face is located between the projection of the air inlet and the projection of the air return port in the reference face, and the reference face is perpendicular to the air outlet direction of the air inlet duct; when the air outlet pipeline is installed at a target object in the target space, the air outlet face and the side wall surface of the target object located on at least one side of the air outlet form a continuous face. According to the air conditioner, reasonable layout of the return air inlets can be achieved, and the space attractiveness is improved.

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 more particularly to an air conditioner. Background Technology

[0003] As living standards improve, users are placing higher demands on the aesthetics and home integration of air conditioning equipment.

[0004] In related technologies, air conditioners deliver air to the room through air outlets and return air through indoor return air inlets to achieve air circulation.

[0005] However, in related technologies, the air conditioner's return air vent is located indoors, which can affect the aesthetics of the space. Utility Model Content

[0006] In view of the above problems, this application provides an air conditioner that helps to achieve a reasonable layout of the return air vents to improve the aesthetics of the space.

[0007] This application provides an air conditioner, comprising: a body; an air supply duct, wherein the air supply duct has an inlet air duct and a return air duct arranged side by side, a first end of the air supply duct is connected to the body, and a second end of the air supply duct has an air inlet communicating with the inlet air duct and a return air inlet communicating with the return air duct, wherein gas that has undergone heat exchange through the body flows to a target space through the inlet air duct, and gas in the target space enters the housing of the body through the return air duct; and an air outlet duct, wherein the air outlet duct is connected to the inlet air duct and exposes the return air inlet, the air outlet duct includes an air outlet surface with an air outlet, the projection of the air outlet surface in a reference plane is between the projections of the inlet air duct and the return air inlet in the reference plane, the reference plane is perpendicular to the air outlet direction of the inlet air duct; when the air outlet duct is installed at a target object in the target space, the air outlet surface forms a continuous surface with the side wall surface of the target object located on at least one side of the air outlet.

[0008] Thus, by arranging the air intake and return ducts side-by-side within the air supply duct, the air inlets corresponding to the air intake ducts and the return air outlets corresponding to the return air ducts can be placed adjacent to each other, thereby improving space utilization. Furthermore, through the continuous design of the air outlet ducts and the side wall surface of the target object, the air outlets and return air outlets can be concealed within the structure of the target object (such as ceilings, walls, or custom furniture), eliminating the visual abruptness of traditional exposed air outlets and achieving a high degree of integration between air supply and return functions and spatial aesthetics.

[0009] In one possible implementation, at least a portion of the air outlet forms an air outlet area along the air outlet direction of the air inlet duct, the air outlet area being spaced apart from the return air outlet.

[0010] In this way, by separating the air supply area from the return air inlet, short-circuiting of the air supply and return air can be avoided, reducing energy loss caused by newly exhausted air being immediately drawn into the return air system. At the same time, separating the air supply area from the return air inlet can enhance air exchange efficiency, allowing the supply air to fully cover the target area before entering the circulation system, thereby improving heat exchange efficiency and reducing system energy consumption.

[0011] In one possible implementation, the distance between the air outlet area and the return air inlet is 15cm-30cm along the air outlet direction of the air inlet duct.

[0012] In this way, by setting the above-mentioned spacing, it can be ensured that the airflow at the supply air outlet is fully diffused and forms an effective coverage, avoiding direct convection with the return air outlet, thereby blocking the short circulation of hot and cold air and reducing energy loss. At the same time, the above-mentioned spacing can optimize the pressure difference distribution between the supply and return air, reduce turbulence noise caused by airflow convergence, and improve the quietness performance of the air conditioner.

[0013] In one possible implementation, a baffle plate is provided at one end of the air outlet duct near the air supply duct, and the baffle plate partially blocks the air outlet so as to separate the air outlet area from the return air outlet.

[0014] In this way, by setting up a baffle, the airflow can be guided to diffuse away from the return air vent, avoiding direct convergence between the airflow and the return air vent, thereby avoiding energy loss caused by the mixing of hot and cold air.

[0015] In one possible implementation, a first baffle is provided at the air outlet, the first baffle has a plurality of first through holes, the gas in the air outlet duct is blown out after passing through the first through holes, and the baffle plate and the first baffle are stacked together.

[0016] In this way, by setting a first baffle and setting multiple first through holes on the first baffle, the concentrated airflow in the air outlet duct can be divided into multiple fine airflows. The wind speed is reduced and the wind pressure is dispersed through the friction of the hole wall and the collision effect of the airflow, thereby achieving the softening of the airflow and avoiding the discomfort caused by direct blowing.

[0017] In one possible implementation, the wind deflector is located outside the first baffle and parallel to the first baffle.

[0018] In this way, by setting the wind deflector parallel to the first deflector, the first through hole can work together to soften the airflow, suppress turbulence and stabilize the airflow direction through secondary flow guidance, and ensure that the airflow still maintains laminar flow characteristics after being dispersed by the first through hole, thereby reducing energy loss caused by airflow scattering.

[0019] In one possible implementation, the baffle is connected to at least one of the air outlet duct and the first baffle.

[0020] Thus, by connecting the baffle to at least one of the air outlet duct or the first baffle, structural stability can be improved. The fixed connection of the baffle effectively prevents displacement caused by airflow impact or air outlet duct vibration, ensuring its relative position and spacing with the first baffle remain constant, thereby maintaining the stability of the airflow softening and guiding effect.

[0021] In one possible implementation, the air conditioner further includes a return air filter located at the return air inlet to filter impurities in the air.

[0022] In this way, by setting up a return air filter, dust, particulate matter and suspended pollutants in the air can be effectively intercepted, preventing impurities from entering the air conditioner with the return air. This avoids the risk of performance degradation or blockage of core components such as evaporators and heat exchangers due to dust accumulation, significantly extending the service life of the air conditioner and reducing the frequency of maintenance.

[0023] In one possible implementation, the return air filter includes: a filter support, which is snapped and fixed to the return air inlet; and a filter body, which has mesh holes and is connected to the filter support.

[0024] In this way, the snap-fit ​​fixing method between the filter support and the return air vent simplifies the assembly process, ensures a tight fit between the filter and the return air vent, avoids impurities bypassing due to installation gaps, and enhances structural stability through mechanical locking.

[0025] In one possible implementation, the air supply duct includes: a duct body; and a first partition located within the duct body, the first partition extending in a direction parallel to the extension direction of the duct body, the first partition dividing the duct body into the air inlet duct and the air return duct.

[0026] Thus, by setting up the first baffle, the cross-interference between the supply and return airflows can be blocked, eliminating temperature fluctuations and energy losses caused by mixed air. The parallel layout of the dual air ducts allows for precise control of the airflow path within the limited space of the supply air duct, ensuring that the intake airflow maintains cleanliness and temperature control stability within the intake air duct, and allowing the return airflow to be directly guided to the indoor unit of the air conditioner through the return air duct, avoiding ineffective circulation of unexchanged heat air.

[0027] In one possible implementation, the cross-sectional areas of the air intake duct and the air return duct are the same.

[0028] In this way, by ensuring the consistency of cross-sectional area, the airflow rate and velocity of the intake and return air can be uniformly matched in the symmetrical air duct, reducing sudden changes in airflow resistance or local pressure changes caused by differences in cross-sectional area, thereby improving the stability of the air supply duct.

[0029] In one possible implementation, the air supply duct includes a wall-penetrating section, a transition section, and an air supply section connected in sequence. The transition section includes a first end near the wall-penetrating section and a second end near the air supply section. The structure of the pipe wall of the transition section at the first end is the same as that of the wall-penetrating section, and the structure of the pipe wall of the transition section at the second end is the same as that of the air supply section. The return air inlet and the air inlet are both located at the end of the wall-penetrating section away from the transition section.

[0030] Thus, by dividing the air supply duct into a wall penetration section, a transition section, and an air supply section, and limiting the isomorphism of the two ends of the transition section with the wall penetration section and the air supply section, the mechanical stability and airflow smoothness of the air supply duct can be optimized. Maintaining morphological consistency between the two ends of the transition section and the wall penetration section and the air supply section respectively can eliminate local stress concentration caused by abrupt changes in cross-section or material differences, enhance the deformation resistance of the air supply duct, and simultaneously reduce the turbulence intensity at the connection point through a smooth transition, thereby reducing wind resistance and energy loss.

[0031] In one possible implementation, the fuselage is located outside the target space, and the air outlet duct is located inside the target space.

[0032] Thus, by placing the air conditioner unit outside the target space and embedding the air outlet duct inside, a synergistic optimization of air conditioning operation and user experience is achieved. The external unit effectively isolates noise sources such as the compressor and fan, significantly reducing indoor noise pollution. Simultaneously, the external space can be utilized to improve air conditioning heat dissipation, enhancing cooling / heating efficiency and extending the lifespan of core components. Meanwhile, the embedded air outlet duct reduces temperature drop or rise losses during airflow, thereby improving temperature control accuracy and response speed. Attached Figure Description

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

[0034] Figure 1 A partial structural diagram of the air conditioner provided in the embodiments of this application. Figure 1 ;

[0035] Figure 2 A partial structural diagram of the air conditioner provided in the embodiments of this application. Figure 2 ;

[0036] Figure 3 A partial structural diagram of the air conditioner provided in the embodiments of this application. Figure 3 ;

[0037] Figure 4 A partial structural diagram of the air conditioner provided in the embodiments of this application. Figure 4 ;

[0038] Figure 5 A partial structural diagram of the air conditioner provided in the embodiments of this application. Figure 5 ;

[0039] Figure 6 This is a partial explosion diagram of the air conditioner body provided in an embodiment of this application;

[0040] Figure 7 This is a schematic diagram of the structure of an air conditioner that supplies air to multiple target spaces according to an embodiment of this application. Figure 1 ;

[0041] Figure 8 This is a schematic diagram of the structure of an air conditioner that supplies air to multiple target spaces according to an embodiment of this application. Figure 2 ;

[0042] Figure 9 This is a partial structural schematic diagram of the air supply duct provided in an embodiment of this application;

[0043] Figure 10 A schematic diagram of the air outlet duct provided in the embodiments of this application. Figure 1 ;

[0044] Figure 11 Explosion of the air outlet duct provided in the embodiments of this application Figure 1 ;

[0045] Figure 12 Cross-section of the air outlet duct provided in the embodiments of this application Figure 1 ;

[0046] Figure 13 Explosion of the air outlet duct provided in the embodiments of this application Figure 2 ;

[0047] Figure 14 Cross-section of the air outlet duct provided in the embodiments of this application Figure 2 ;

[0048] Figure 15 A schematic diagram of the air outlet duct provided in the embodiments of this application. Figure 2 ;

[0049] Figure 16 The air outlet duct provided in this application embodiment is installed on the cross section of the target object. Figure 1 ;

[0050] Figure 17 The air outlet duct provided in this application embodiment is installed on the cross section of the target object. Figure 2 ;

[0051] Figure 18 The air outlet duct provided in this application embodiment is installed on the cross section of the target object. Figure 3 ;

[0052] Figure 19 The air outlet duct provided in this application embodiment is installed on the cross section of the target object. Figure 4 ;

[0053] Figure 20 The air outlet duct provided in this application embodiment is installed on the cross section of the target object. Figure 5 ;

[0054] Figure 21 This is a schematic diagram of the structure of the air outlet duct and support provided in the embodiments of this application;

[0055] Figure 22 This is a schematic diagram of the structure of the bracket provided in the embodiments of this application;

[0056] Figure 23 This is a schematic diagram of the air conditioner body provided in an embodiment of this application;

[0057] Figure 24 This is a schematic diagram of the internal structure of the air conditioner body provided in an embodiment of this application.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1-Air conditioner; 1000-Target space; 2000-Target object; 2100-Side wall surface; 2200-Mounting bracket; 2201-Snap-fit ​​structure; 2202-Connecting part; 2203-Mounting part;

[0060] 10-Built body; 11-Shell; 111-Second partition; 112-Third partition; 12-Evaporator; 13-Condenser; 14-First fan; 15-Fourth partition; 16-Second fan; 17-Outlet; 18-Grate; 19-Compressor;

[0061] 20-Supply air duct; 21-Pipe body; 22-First partition; 211-Wall penetration section; 212-Transition section; 213-Supply air section; 210-Inlet air duct; 220-Return air duct; 230-Inlet air port; 240-Return air port; 23-Main pipe; 24-Branch pipe; 25-Pipe unit; 26-Clamping ring;

[0062] 30-Air outlet duct; 31-Air outlet surface; 32-Air outlet; 33-Air outlet area; 34-Wind deflector; 35-First baffle; 351-First through hole; 36-First air guide plate; 361-First air guide hole; 37-Second baffle; 38-Air guide mechanism; 39-Wind baffle; 301-Air outlet module; 3011-Side wall;

[0063] 40 - Return air filter; 41 - Filter support; 42 - Filter body. Detailed Implementation

[0064] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0065] Most existing air conditioners use a split-type design, consisting of an indoor unit and an outdoor unit. The air conditioner uses a fan to drive air through a heat exchanger, supplying air to the room through the outlet and returning it through the indoor return air vent, thus achieving air circulation. However, the heat exchange in existing air conditioners is insufficient, resulting in poor cooling or heating performance.

[0066] In view of this, this application provides an air conditioner that improves space utilization by arranging an air inlet duct and a return air duct side by side within the air supply duct, allowing the air inlet corresponding to the air inlet duct and the return air outlet corresponding to the return air duct to be arranged adjacent to each other. Furthermore, through the continuous design of the air outlet duct and the side wall surface of the target object, the air outlet and return air outlet can be concealed within the structure of the target object (such as a ceiling, wall, or custom furniture), eliminating the visual abruptness of traditional exposed air outlets and achieving a high degree of integration between air supply and return functions and spatial aesthetics.

[0067] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings:

[0068] refer to Figure 1 , Figure 2 , Figure 5 This embodiment provides an air conditioner 1, which includes a body 10, an air supply duct 20, and an air outlet duct 30.

[0069] The air supply duct 20 is used to supply air to the air conditioner 1, which can be a ducted air conditioner with its unit 10 located outside the target space. The unit 10 may contain an evaporator, condenser, compressor, and fan. The air supply duct 20 can deliver the gas inside the unit 10 into the target space. Optionally, the target space can be a closed or semi-closed area. For example, the target space can be a residential space, commercial space, industrial environment, etc.

[0070] The air supply duct 20 is equipped with an air inlet duct 210 and a return air duct 220 arranged side by side. For supplying air to the target space, the first end of the air supply duct 20 can be connected to the unit body 10. The second end of the air supply duct 20 can be equipped with an air inlet 230 communicating with the air inlet duct 210 and a return air inlet 240 communicating with the return air duct 220. Gas that has undergone heat exchange with the unit body 10 can flow to the target space through the air inlet duct 210. Furthermore, gas within the target space can enter the casing of the unit body 10 through the return air duct 220.

[0071] In addition, the air conditioner 1 is also equipped with an air outlet duct 30. The air outlet duct 30 can be installed inside the target space. Furthermore, the air outlet duct 30 can be connected to the air inlet 230 and expose the return air inlet 240 to achieve airflow circulation. Specifically, the air outlet duct 30 has an air outlet surface 31. An air outlet 32 ​​is provided on the air outlet surface 31. The air outlet direction of the air outlet 32 ​​can be perpendicular to the opening direction of the return air inlet 240. Furthermore, the projection of the air outlet surface 31 onto a reference plane can be between the projections of the air inlet 230 and the return air inlet 240 onto the reference plane to balance the intake and return air volumes. That is, the air outlet 32 ​​can be located on the side of the air outlet duct 30 closer to the return air inlet 240. It should be noted that the reference plane can be a vertical plane, or the reference plane can be perpendicular to the air outlet direction of the intake duct 210.

[0072] Furthermore, when the air outlet duct 30 is installed at the target object in the target space, the air outlet surface 31 of the air outlet duct 30 can form a continuous surface with the side wall surface of the target object. Specifically, the air outlet surface 31 of the air outlet duct 30 can form a continuous surface with the side wall surface of the target object located on one side of the air outlet 32. Alternatively, the air outlet surface 31 of the air outlet duct 30 can form a continuous surface with the side wall surfaces of the target object located on both sides of the air outlet 32. For example, the air outlet surface 31 can be seamlessly connected visually and physically with the side wall surface of the target object (such as walls, ceilings, furniture, etc.), forming a smooth, integrated surface. This design, by concealing or integrating the edges of the air outlet surface 31 and aligning it with the surrounding structure, enhances aesthetics and optimizes airflow distribution.

[0073] In the specific implementation process, the target object can be a room or a cabinet, etc. The side wall surface of the target object can be the wall surface of the room or the surface of the cabinet. The air outlet 32 ​​of the air outlet duct 30 can be set on the wall surface or the surface of the cabinet so that the air outlet 32 ​​is not obtrusive to the wall surface or the surface of the cabinet, and the air outlet duct 30 can be integrated with the wall or cabinet, thereby improving the aesthetics.

[0074] Understandably, by arranging air intake and return ducts side-by-side within the air supply duct, the air inlets corresponding to the intake ducts and the return air outlets corresponding to the return ducts can be placed adjacent to each other, thereby improving space utilization. Furthermore, through the continuous design of the air outlet duct and the side wall surface of the target object, the air outlets and return air outlets can be concealed within the structure of the target object (such as ceilings, walls, or custom furniture), eliminating the visual abruptness of traditional exposed air outlets and achieving a high degree of integration between air supply and return functions and spatial aesthetics.

[0075] In one possible implementation, refer to Figure 1 , Figure 2 , Figure 5 Along the air outlet direction of the air inlet duct 210, the air outlet 32 ​​can form an air outlet area 33. Alternatively, at least a portion of the air outlet 32 ​​can form an air outlet area 33. Furthermore, the air outlet area 33 can be spaced apart from the return air outlet 240. Optionally, the air outlet 32 ​​can be composed of multiple honeycomb-shaped airflow guide grilles or strip diffusers, with the angle of the grilles adjusted to achieve directional airflow diffusion. A retractable airflow guide plate can also be installed between the air outlet area 33 and the return air outlet 240. The length of the airflow guide plate can be adjusted by a motor or a manual knob to dynamically control the spacing distance and adapt to different spatial layout requirements.

[0076] Understandably, separating the air outlet area 33 from the return air inlet 240 avoids short-circuiting between the air outlet and return airflow, reducing energy loss caused by newly exhausted airflow being immediately drawn into the return air system. Simultaneously, separating the air outlet area 33 from the return air inlet 240 enhances air exchange efficiency, allowing the supply airflow to fully cover the target area before entering the circulation system, thereby improving heat exchange efficiency and reducing system energy consumption.

[0077] In one possible implementation, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 Along the air outlet direction of the air inlet duct 210, the distance between the air outlet area 33 and the return air inlet 240 is 15cm-30cm. For example, the distance between the air outlet area 33 and the return air inlet 240 can be 15cm, 16cm, 17cm, 18cm, 19cm, 20cm, 21cm, 22cm, 23cm, 24cm, 25cm, 26cm, 27cm, 28cm, 29cm, 30cm, etc. The distance between the air outlet area 33 and the return air inlet 240 can be determined according to actual needs, and this application does not impose any restrictions. In this embodiment, the distance between the air outlet area 33 and the return air inlet 240 is controlled between 15cm and 30cm, which can avoid the increase in airflow energy loss caused by excessive distance, and can also avoid the problem that the airflow is not fully diffused and is sucked into the return air inlet 240 when the distance is too small.

[0078] Understandably, by setting the aforementioned spacing, it is possible to ensure that the airflow at the supply air outlet is fully diffused and forms effective coverage, avoiding direct convection with the return air inlet 240, thereby blocking the short-circuit phenomenon of hot and cold air and reducing energy loss. At the same time, setting the aforementioned spacing can optimize the pressure difference distribution between the supply and return air, reduce turbulence noise caused by airflow convergence, and improve the quietness performance of the air conditioner 1.

[0079] In one possible implementation, refer to Figure 4 , Figure 5 A baffle plate 34 can be installed at one end of the air outlet duct 30. Specifically, a baffle plate 34 is installed at the end of the air outlet duct 30 closest to the supply air duct 20. Due to the presence of the baffle plate 34, it will block part of the air outlet 32 ​​on the air outlet duct 30, thereby separating the air outlet area 33 from the return air outlet 240. Optionally, the baffle plate 34 can adopt a segmented design (such as 3-5 independent blades). It can be connected by a rotating shaft or slide rail, and supports manual or motor-driven adjustment of the blade opening angle (0°-90°) to dynamically control the blocking ratio of the air outlet 32 ​​(30%-70%), thereby achieving precise adjustment of the air outlet area 33.

[0080] It is understandable that by setting up the baffle 34, the airflow can be guided to diffuse away from the return air vent 240, avoiding direct convergence between the airflow and the return air vent 240, thereby avoiding energy loss caused by the mixing of hot and cold air.

[0081] In one possible implementation, refer to Figure 4 , Figure 5 A first baffle 35 may also be provided at the air outlet 32. The first baffle 35 may be arranged parallel to the air outlet surface 31. The first baffle 35 may have multiple first through holes 351. The air in the air outlet duct 30 can be blown out after passing through the first through holes 351, which can further soften the airflow and improve comfort. Furthermore, the baffle 34 may be stacked with the first baffle 35. Optionally, the cross-sectional shape of the first through hole 351 may be circular, elliptical, square, or other shapes.

[0082] It is understandable that by setting the first baffle 35 and setting multiple first through holes 351 on the first baffle 35, the concentrated airflow in the air outlet duct 30 can be divided into multiple fine airflows. The wind speed is reduced and the wind pressure is dispersed through the friction of the hole wall and the collision effect of the airflow, thereby achieving the softening of the airflow and avoiding the discomfort caused by direct blowing.

[0083] In one possible implementation, refer to Figure 4 , Figure 5 The wind deflector 34 can be disposed on the outer side of the first baffle 35. Specifically, the wind deflector 34 can be located on the side of the first baffle 35 near the return air vent 240. Furthermore, the wind deflector 34 can be arranged parallel to the first baffle 35.

[0084] It is understandable that by setting the wind deflector 34 parallel to the first deflector 35, the first through hole 351 can work together to soften the airflow, suppress turbulence and stabilize the airflow direction through secondary flow guidance, and ensure that the airflow maintains laminar flow characteristics after being dispersed by the first through hole 351, thereby reducing energy loss caused by airflow scattering.

[0085] In one possible implementation, refer to Figure 4 , Figure 5 The baffle 34 can be connected to the air outlet duct 30. Alternatively, the baffle 34 can be connected to the first baffle 35. Or, the baffle 34 can be connected to both the air outlet duct 30 and the first baffle 35. Optionally, the baffle 34 can be connected to the air outlet duct 30 via a snap-fit ​​connection, a sliding rail connection, a magnetic connection, or other similar method. The baffle 34 can be connected to the first baffle 35 via a hinge connection, a plug-in connection, or other similar method.

[0086] It is understandable that connecting the baffle 34 to at least one of the air outlet duct 30 or the first baffle 35 can improve structural stability. The fixed connection of the baffle 34 effectively prevents displacement caused by airflow impact or vibration of the air supply duct 20, ensuring that its relative position and distance from the first baffle 35 remain constant, thereby maintaining the stability of the airflow softening and guiding effect.

[0087] In one possible implementation, refer to Figure 3 , Figure 4 , Figure 5 The air conditioner 1 also includes a return air filter 40. The return air filter 40 can be located at the return air inlet 240 to filter impurities in the air. Optionally, the return air filter 40 can be a multi-layer composite filter. Specifically, the return air filter 40 can have a three-layer composite structure. The first layer of the return air filter 40 can be a folded PET filter to intercept large particles and other impurities. The second layer of the return air filter 40 can be an electrostatic meltblown cloth to adsorb dust and other impurities. The third layer of the return air filter 40 can be a honeycomb activated carbon plate for further filtration. It is understood that by setting up the return air filter 40, dust, particulate matter, and suspended pollutants in the air can be efficiently intercepted, preventing impurities from entering the air conditioner 1 with the return air. This avoids the risk of performance degradation or blockage of core components such as the evaporator and heat exchanger due to dust accumulation, significantly extending the service life of the air conditioner 1 and reducing maintenance frequency.

[0088] In one possible implementation, refer to Figure 3 , Figure 4 The return air filter 40 includes a filter support 41 and a filter body 42. The filter support 41 is snapped and fixed to the return air inlet 240. The filter body 42 may have multiple layers of mesh. The filter body 42 can be connected to the filter support 41.

[0089] Understandably, the snap-fit ​​fixing method between the filter support 41 and the return air vent 240 simplifies the assembly process, ensures a tight fit between the filter and the return air vent 240, avoids impurities bypassing due to installation gaps, and enhances structural stability through mechanical locking.

[0090] In one possible implementation, refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 The air supply duct 20 includes a duct body 21 and a first partition 22. Specifically, the first partition 22 may be disposed inside the duct body 21. Further, the first partition 22 may extend in a direction parallel to the extension direction of the duct body 21 to divide the duct body 21 into an air inlet duct 210 and a return air duct 220.

[0091] Understandably, by setting the first partition 22, the cross-interference between the supply and return airflows can be blocked, eliminating temperature fluctuations and energy losses caused by mixed air. The parallel layout of the dual air ducts allows for precise control of the airflow path within the limited space of the supply air duct 20, ensuring that the intake airflow maintains cleanliness and temperature control stability within the intake air duct 210, and allowing the return airflow to be directly guided to the indoor unit of the air conditioner 1 through the return air duct 220, avoiding ineffective circulation of unexchanged heat air.

[0092] In one possible implementation, refer to Figure 2 , Figure 3 The cross-sectional areas of the air intake duct 210 and the air return duct 220 are the same.

[0093] Understandably, consistent cross-sectional area ensures that the airflow rate and velocity of the intake and return air are uniformly matched within the symmetrical duct, reducing sudden changes in airflow resistance or local pressure variations caused by differences in cross-sectional area, thereby improving the stability of the air supply duct 20.

[0094] In one possible implementation, refer to Figure 1 , Figure 6 , Figure 22 , Figure 23 The unit body 10 is located outside the target space 1000, and the air outlet duct 30 is located inside the target space 1000. Specifically, the unit body 10 of the air conditioner 1 may include a housing 11 and an evaporator 12, a condenser 13, a compressor (not shown in the figure), and a first fan 14 disposed within the housing 11.

[0095] In other words, the unit 10 includes the components of the indoor and outdoor units of a traditional air conditioner 1. In this embodiment, the air conditioner 1 places the evaporator 12, condenser 13, compressor, and fan of the traditional indoor and outdoor units in the same machine. It only delivers gas to the target space 1000 through the air supply duct 20 and the air outlet duct 30. This can effectively reduce the size of the indoor unit. At the same time, since there is only the air outlet duct 30 in the indoor unit and no evaporator 12 or fan, the air conditioner 1 can be quieter when blowing air in the target space 1000, thus improving the user experience.

[0096] The air conditioner 1 provided in this embodiment can be a small-sized ducted air conditioner with return air. By placing the core components such as the heat exchanger of the traditional air conditioner 1 externally and supplying air through the air supply duct 20, the volume can be reduced, thereby achieving integration into the home.

[0097] As one example, such as Figure 7 , Figure 8 As shown, in this embodiment, a body 10 can be equipped with one air supply duct 20. Of course, in other embodiments, a body 10 can be equipped with multiple air supply ducts 20.

[0098] More specifically, such as Figure 7 , Figure 8 As shown, each air supply duct 20 may include a main pipe 23 and at least one branch pipe 24. One end of each branch pipe 24 is connected to the main pipe 23, and the other end is connected to the corresponding target space 1000 to supply air to the target space 1000.

[0099] When a unit 10 is equipped with one air supply duct 20, and there are many target spaces 1000, a main pipe 23 and multiple branch pipes 24 can be used to supply air to different target spaces 1000 (e.g., Figure 8 (As shown). When a unit 10 is equipped with multiple air supply ducts 20, and there are many target spaces 1000, each air supply duct 20 can include a main pipe 23, and is matched according to the number of target spaces 1000 and the number of air supply ducts 20. Each air supply duct 20 can supply air to one of the target spaces 1000 (e.g., Figure 7 (As shown).

[0100] As a specific embodiment of this utility model, such as Figure 2 , Figure 9 As shown, each main pipe 23 and branch pipe 24 in this embodiment may include a pipe body 21 and a first partition 22. The first partition 22, located inside the pipe body 21, extends in a direction parallel to the extension direction of the pipe body 21, dividing the pipe body 21 into an air inlet duct 210 and a return air duct 220.

[0101] More specifically, in this embodiment, the cross-sectional areas of the air inlet duct 210 and the air return duct 220 are the same. This ensures that the air volume of the air inlet and the air return is equivalent.

[0102] When the air supply duct 20 includes a main pipe 23 and a branch pipe 24, the air inlet duct 210 of the main pipe 23 and the air inlet duct 210 of the branch pipe 24 are connected, and the return air duct 220 of the main pipe 23 and the return air duct 220 of the branch pipe 24 are connected.

[0103] Specifically, when the air supply duct 20 in this embodiment includes a main pipe 23 and a branch pipe 24, the wall penetration section 211 is located at the branch pipe 24.

[0104] More specifically, in this embodiment, the cross-section of the air supply duct 20 at the wall penetration section 211 can be designed as circular, while the duct at other locations can be designed as circular (e.g., Figure 9 (as shown) or other shapes. For example, the duct between the wall-penetrating section 211 and the unit 10 can be designed as square, such as rectangular or square. This design makes the air supply duct 20 more aesthetically pleasing and easier to install when it is outside the wall, and it also better matches the wall-penetrating hole in the wall-penetrating section 211.

[0105] As a specific embodiment of this utility model, the air supply duct 20 in this embodiment is provided with a heat insulation layer (not shown in the figure) on its pipe wall. The heat insulation layer can keep the gas inside the air supply duct 20 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.

[0106] As a specific embodiment of this utility model, such as Figure 9 As shown, the air supply duct 20 in this embodiment is formed by one or more duct units 25. When the air supply duct 20 is formed by connecting multiple duct units 25 together, the multiple duct units 25 are interlocked to form the entire duct. Specifically, retaining rings 26 are provided at the connection points between duct units 25 (e.g., Figure 9 As shown, the retaining ring 26 snaps the ends of the pipe units 25 on both sides together and seals them.

[0107] As a specific embodiment of this utility model, such as Figure 10 As shown, each air supply duct 20 in this embodiment is provided with an air outlet duct 30 at its end, which is connected to the air inlet duct 210. The extension direction of the air outlet duct 30 is parallel to the air outlet direction of the air inlet duct 210. An air outlet 32 ​​is provided at the air outlet duct 30. The gas in the air inlet duct 210 flows into the air outlet duct 30 and is blown out from the air outlet 32.

[0108] Specifically, in this embodiment, an air outlet duct 30 is provided at the end of the air supply duct 20. When the gas is delivered to the target space 1000 by the air supply duct 20, it is then blown out through the air outlet duct 30. The position and direction of the gas flow can be controlled by the air outlet duct 30.

[0109] Specifically, in this embodiment, the direction in which the air outlet duct 30 extends parallel to the direction of airflow can minimize the loss of gas energy. Furthermore, in this embodiment, the cross-sectional area of ​​the air outlet duct 30 is larger than the cross-sectional area at the end of the air supply duct 20, thus avoiding gas energy loss and turbulence.

[0110] Specifically, in this embodiment, the air outlet 32 ​​is located on the side wall of the air outlet duct 30, which is parallel to the extending direction. This ensures that the direction of the final blown gas is perpendicular to the extending direction of the air outlet duct 30.

[0111] Of course, in other embodiments, the air outlet 32 ​​and the air outlet direction can be adaptively adjusted to meet different air outlet requirements.

[0112] Specifically, when the air supply duct 20 includes a main pipe 23 and branch pipes 24, each branch pipe 24 that delivers air to the target space 1000 is connected to an air outlet duct 30 at its end.

[0113] As a specific embodiment of this utility model, such as Figure 11-14 As shown, in this embodiment, at least one first air guide plate 36 is provided in the air outlet duct 30, which is substantially perpendicular to the extension direction of the air outlet duct 30. Each first air guide plate 36 is provided with at least one first air guide hole 361. At least part of the gas in the air outlet duct 30 passes through the first air guide hole 361 of the first air guide plate 36 and is then blown out from the air outlet 32.

[0114] Specifically, in this embodiment, at least one first air guide plate 36 is provided in the air outlet duct 30 to block the gas in the air outlet duct 30, so as to prevent most or almost all of the gas in the air outlet duct 30 from being blown to the end of the air outlet duct 30 and then blown out from the air outlet 32, thereby avoiding uneven air outlet.

[0115] Preferably, in this embodiment, a plurality of first air guide plates 36 are provided in the air outlet duct 30, and the plurality of first air guide plates 36 are arranged at intervals along the extension direction of the air outlet duct 30.

[0116] Specifically, by setting multiple first air guide plates 36 inside the air outlet 30 along the extension direction of the air outlet 30, the air volume blown out from the air outlet 32 ​​can be further optimized, and the uniformity of the air outlet can be further improved.

[0117] As a specific embodiment of this utility model, at least a portion of the outer periphery of the first air guide plate 36 is in contact with the inner wall of the air outlet duct 30, thus ensuring that all the gas flowing through the first air guide plate 36 passes through the first air guide hole 361 of the first air guide plate 36 before flowing to the rear.

[0118] Specifically, the outer periphery of each first air guide plate 36 contacts the side wall of the air outlet 30 where the non-air outlet 32 ​​is located.

[0119] Specifically, the cross-sectional shape of the first air guide hole 361 in this embodiment can be circular, elliptical, square, or other shapes. Preferably, the shape of the first air guide hole 361 in this embodiment is circular.

[0120] Preferably, all the first air guide plates 36 in this embodiment are arranged in parallel to each other.

[0121] Preferably, in this embodiment, all the first air guide plates 36 are perpendicular to the extension direction of the air outlet duct 30, and the shape of all the first air guide plates 36 is consistent with the cross-sectional shape of the side wall of the air outlet duct 30.

[0122] Specifically, in this embodiment, the cross-sectional shape of the air outlet duct 30 is triangular, and the cross-sectional shape of the first air guide plate 36 is also triangular.

[0123] As a specific embodiment of this utility model, the proportion of the cross-section of the first air guide hole 361 of the first air guide plate 36 to the total cross-sectional area of ​​the first air guide plate 36 gradually increases from the position of the air inlet duct 210 to the position away from the air inlet duct 210.

[0124] Specifically, since the wind speed is higher near the air inlet duct 210 and lower far from the air inlet duct 210, this design ensures that the wind speed of the gas blown out by the air outlet duct 30 is similar near the air inlet duct 210 and far from the air inlet duct 210, resulting in good uniformity of the blown gas and improving the user experience.

[0125] Specifically, the cross-sectional area of ​​the first air guide hole 361 of the first air guide plate 36 in this embodiment can be changed by changing the number of the first air guide holes 361 or by changing the cross-sectional area of ​​each first air guide hole 361.

[0126] As a specific embodiment of the present invention, the density of the first air guide plate 36 gradually decreases in the direction from the position close to the air inlet duct 210 to the position far away from the air inlet duct 210.

[0127] Specifically, in this embodiment, the density of the first air guide plates 36 near the air inlet duct 210 is set to be large, while the density of the first air guide plates 36 far from the air inlet duct 210 is set to be small. This makes the airflow near the air inlet duct 210 and the airflow far from the air inlet duct 210 have similar speeds, thereby making the uniformity of the gas blown out of the air outlet 32 ​​good.

[0128] As a specific embodiment, the density of the first air guide plate 36 set at the air outlet duct 30 and the cross-sectional area of ​​the first air guide hole 361 at the first air guide plate 36 can be designed according to the situation, so as to make the uniformity of the gas blown out of the air outlet 32 ​​at different positions of the air outlet 30 good.

[0129] More specifically, the aperture size of the first air guide hole 361 at the first air guide plate 36 in this embodiment is adjustable. By changing the total cross-section of the first air guide hole 361 at each first air guide plate 36, the ratio of the total cross-sectional area of ​​the first air guide hole 361 to the cross-section of the first air guide plate 36 can be changed, thereby further improving the uniformity of the air output.

[0130] In another embodiment, the first air guide plate 36 of this embodiment can be set with different areas at different distances from the air inlet duct 210, so as to further increase the uniformity of the air outlet.

[0131] As a specific embodiment of this utility model, such as Figure 11-14As shown, in this embodiment, a first baffle 35 is provided at the air outlet 32 ​​of the air outlet duct 30. The first baffle 35 is provided with at least one first through hole 351, and the gas from the air outlet duct 30 is blown out after passing through the first through hole 351.

[0132] Specifically, in this embodiment, a first air guide hole 361 is provided at the air outlet duct 30, and a first baffle 35 is provided at the air outlet 32, with a first through hole 351 provided at the first baffle 35, to further increase the uniformity of air outlet from the air outlet duct 30.

[0133] As a specific embodiment of this utility model, a second baffle 37 is also provided at the air outlet 32 ​​of the air outlet duct 30 in this embodiment. The second baffle 37 is located outside the first baffle 35 so that the gas blown out from the first baffle 35 passes through the second baffle 37 and is then blown out.

[0134] Specifically, in this embodiment, the gas blown out from the first baffle 35 passes through the second baffle 37 before being blown out again, further improving the uniformity of the airflow.

[0135] Specifically, the second baffle 37 in this embodiment can be designed as a filter structure (e.g. Figure 10 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 second baffle 37 of this embodiment can be designed as a horizontal strip-shaped grid structure (e.g., Figure 11 and Figure 12 As shown), the direction of airflow can be adjusted by changing the number and direction of the grid structure. As another specific embodiment, the second baffle 37 of this embodiment can also be designed as a perforated partition structure (e.g., Figure 13 and Figure 14 As shown in the figure, the size and distribution of the holes on the partition can be designed according to actual conditions. Specifically, in this embodiment, the holes on the partition have a larger diameter in the middle and smaller diameters on both sides.

[0136] Specifically, in this embodiment, a first air guide plate 36, a first baffle 35, and a second baffle 37 are provided at the air outlet duct 30. Through these three components, three levels of uniform airflow are achieved, resulting in good uniformity of the gas blown out from the air outlet duct 30 and almost no wind sensation, thus improving the user experience.

[0137] As a specific embodiment of this utility model, such as Figure 15 and Figure 16 As shown, in this embodiment, the air outlet duct 30 is also provided with a baffle plate 39 and air guiding mechanisms 38 located on both sides of the baffle plate 39 at the air outlet 32. The air guiding mechanism 38 guides the gas blown out of the air outlet 32 ​​in a direction away from the baffle plate 39.

[0138] Specifically, in this embodiment, a baffle plate 39 and a guide mechanism 38 are provided at the air outlet 32 ​​of the air outlet duct 30. The baffle plate 39 is located in the middle of the air outlet 32, while the guide mechanism 38 guides the air blown out of the air outlet 32 ​​to a position away from the middle, thereby preventing the air in the air blown out of the air outlet 32 ​​from being blown directly at the user, thereby improving the user experience.

[0139] Specifically, in this embodiment, the air guide mechanism 38 can be rotatably connected to the wall of the air outlet duct 30, thereby controlling the direction of the gas blown out from the air guide mechanism 38 by controlling the rotation of the air guide mechanism 38.

[0140] Specifically, the air guiding mechanism 38 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.

[0141] As a specific embodiment of this utility model, such as Figure 10 As shown, the air outlet duct 30 of this embodiment may include multiple interconnected and communicating air outlet modules 301. Adjacent air outlet modules 301 are interlocked. Each air outlet module 301 may have a first air guide plate 36 extending vertically. Each air outlet 301 has a first baffle 35 and a second baffle 37 at its air outlet 32. Each air outlet 301 also has a baffle plate 39 and an air guiding mechanism 38 at its air outlet 32.

[0142] As a specific embodiment of this utility model, such as Figure 17 As shown in Figure 18, the air outlet duct 30 of this embodiment may further include a side wall 3011, which is installed on the target object 2000 to be installed, so that the air outlet duct 30 is exposed on the surface where the air outlet 32 ​​is located when it is installed on the target object 2000. Furthermore, the plane where the air outlet 32 ​​is located forms a continuous surface with the side wall surface 2100 of the target object 2000 located on at least one side of the air outlet 32.

[0143] Specifically, the target object 2000 in this embodiment can be a specific object in the target space 1000, such as a room or a cabinet. As one embodiment, when the air duct 30 is installed on the target object 2000, the air outlet 32 ​​of the air duct 30 is exposed, and the plane containing the air outlet 32 ​​forms a continuous surface with the side wall surface 2100 of the target object 2000 located on at least one side of the air outlet 32 ​​(e.g., ...). Figure 17 , Figure 19 and Figure 20 As shown), this makes the air duct 30 and the target object 2000 look harmonious from the outside, thus making the air duct 30 look beautiful when installed on the target object 2000.

[0144] Specifically, in this embodiment, the plane where the air outlet 32 ​​of the air outlet duct 30 is located can form a substantially continuous surface with the exposed sidewall surface 2100 of the target object 2000 located on one side of the air outlet 32.

[0145] For example, when the cross-section of the air outlet duct 30 is triangular (such as...) Figure 17 As shown), when the target object 2000 is an interior wall of the room, it can be set at the position between the top and side wall of the room, with only the air outlet 32 ​​exposed. The plane where the air outlet 32 ​​is located forms a continuous zigzag surface with the surface of the ceiling and the side wall.

[0146] When the cross-section of the air outlet duct 30 is quadrilateral, such as Figure 18 Two of the sides can be installed on the top and side wall of the target object 2000, while the other two sides can have an air outlet 32 ​​set in one place or both places.

[0147] Preferably, when the cross-section of the air outlet duct 30 is quadrilateral, such as... Figure 19 and Figure 20 As shown, the plane where the air outlet 32 ​​is located and the side wall surface 2100 of the target object 2000 located around the air outlet 32 ​​form a basically continuous surface.

[0148] More preferably, such as Figure 20 As shown, in this embodiment, the plane where the air outlet 32 ​​is located is on the same plane as the side wall surface 2100 of the target object 2000 near the air outlet 32. At this time, it is necessary to open an installation groove at the target object 2000 and embed the air outlet duct 30 into the installation groove, with only the air outlet surface 31 or the air outlet 32 ​​exposed.

[0149] More specifically, the continuity described in this embodiment does not mean that the air outlet 32 ​​or the air outlet surface 31 must be strictly on the same plane, curved surface, or folded surface as the outside of the side wall. When the air outlet 32 ​​or the air outlet surface 31 protrudes or is recessed within a range of about 1-2 cm outside the side wall, it can also be regarded as a continuous surface or the same plane.

[0150] As a specific embodiment of this utility model, such as Figure 21 and Figure 22 As shown, the side wall of the air outlet duct 30 in this embodiment is provided with an installation structure. The installation structure may include a magnetic structure or a snap-fit ​​structure 2201 to attract or snap with the mounting bracket 2200 at the target object 2000, thereby allowing the air outlet duct 30 to be installed at the target object 2000. Specifically, one mounting bracket 2200 can install one air outlet module 301, or multiple air outlet modules 301.

[0151] Specifically, such as Figure 22As shown, in this embodiment, a mounting bracket 2200 is provided with a snap-fit ​​structure 2201, and a corresponding structure is provided on the side wall of the air outlet duct 30 to engage with the snap-fit ​​structure 2201. When installing the air outlet duct 30, the mounting bracket 2200 can be first fixed to the target object 2000, and then the air outlet duct 30 can be snapped onto the snap-fit ​​structure 2201 of the mounting bracket 2200. In this embodiment, the mounting bracket 2200 can simultaneously mount two air outlet modules 301.

[0152] Of course, as in other embodiments, the connection between the mounting bracket 2200 and the mounting structure can be in other forms such as snap-fit. The air outlet duct 30 cooperates with the mounting bracket 2200 on the target object 2000, so that the air outlet duct 30 can be quickly and flexibly installed on the target object 2000.

[0153] In a specific embodiment of this utility model, the cross-section of the air outlet duct 30 is a right-angled triangle, with the hypotenuse being the air outlet surface 31 and the two right-angled sides being the mounting surface or contact surface. The two right-angled sides are respectively attached to the top and side wall of the room (i.e., the target object 2000), with only the surface containing the air outlet 32 ​​exposed. Mounting components can also be installed on the right-angled sides for mounting to the top and / or side wall.

[0154] More specifically, each mounting bracket 2200 in this embodiment may include a connecting portion 2202 and a mounting portion 2203. The connecting portion 2202 connects the mounting portion 2203 and connects the mounting bracket 2200 to the target object 2000 through the connecting portion 2202. The mounting portion 2203 cooperates with the mounting structure to connect the air outlet duct 30 to the mounting bracket 2200.

[0155] As a specific embodiment of this utility model, such as Figure 23 and Figure 24 As shown, the housing 11 of this embodiment may include a second partition 111, which divides the housing 11 into a first receiving cavity located above and a second receiving cavity located below. The evaporator 12 and the first fan 14 are located in the first receiving cavity, and the condenser 13 is located in the second receiving cavity.

[0156] Specifically, in this embodiment, the housing 10 can be provided with a second partition 111, which divides the housing 11 into two receiving cavities. The two receiving cavities are respectively equipped with an evaporator 12 and a condenser 13. In this embodiment, the evaporator 12 is located in the upper first receiving cavity, which is connected to the air supply duct 20. This allows gas to exchange heat through the evaporator 12 before flowing out through the air supply duct 20 into the target space 1000. The condenser 13, located in the second receiving cavity, exchanges heat with the liquid inside the evaporator 12, ensuring that the evaporator 12 reaches a suitable heat exchange temperature. The second partition 111 also prevents gas from passing through both the space containing the evaporator 12 and the space containing the condenser 13, thus avoiding any impact on the heat exchange effect.

[0157] More specifically, in this embodiment, at least one second through hole (not shown in the figure) is provided at the second partition 111, and the second through hole is located at a position corresponding to the location of the condenser 13. Specifically, since condensate easily forms in the evaporator 12 when exchanging heat with the gas, the condensate will flow down the evaporator 12 and drip below. A drip tray can be provided below the evaporator 12, or the second partition 111 can serve as a drip tray. In this embodiment, the second through hole at the second partition 111 allows the condensate to drip down along the second through hole. The second through hole is located above the condenser 13, so that the condensate directly drips onto the condenser 13, thereby cooling the condenser 13 and improving the overall energy efficiency of the unit.

[0158] In another specific embodiment of this utility model, the second partition 111 is inclined and tilted toward the side with the condenser 13. Specifically, the second partition 111 in this embodiment can be set at an inclination angle, so that the condensate flows along the second partition 111 to one side and eventually drips onto the condenser 13, thereby cooling the condenser 13 and improving the overall energy efficiency of the machine.

[0159] As a specific embodiment of this utility model, the housing 11 of this embodiment may further include a third partition 112 disposed in the first receiving cavity. The third partition 112 divides the first receiving cavity into a first sub-cavity and a second sub-cavity. The evaporator 12 is disposed in the first sub-cavity, and the first fan 14 is disposed in the second sub-cavity. The air inlet duct 210 is connected to the second sub-cavity, and the air return duct 220 is connected to the first sub-cavity. A third through hole is provided at the third partition 112 so that the air flowing into the first sub-cavity from the air return duct 220 flows to the second sub-cavity through the third through hole after heat exchange by the evaporator 12, and then the first fan 14 blows the gas into the air inlet duct 210.

[0160] Specifically, in this embodiment, the first receiving cavity is divided into a first sub-cavity and a second sub-cavity by the third partition 112, so that the inlet of the air inlet duct 210 is connected to the second sub-cavity, while the outlet of the return air duct 220 is connected to the first sub-cavity, thereby separating the exhaust gas and the return gas, and preventing the gas from flowing into the air inlet duct 210 without heat exchange, which would affect the exhaust temperature.

[0161] Furthermore, in this embodiment, a third through hole is provided at the third partition 112, and the first fan 14 can be a centrifugal fan. The air inlet of the centrifugal fan is located at the third through hole, and the air outlet of the centrifugal fan can be directly connected to the inlet of the air inlet duct 210, directly blowing the gas in the first sub-cavity into the air inlet duct 210.

[0162] 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, 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 14 blows part of the gas flowing from the first sub-cavity into the second sub-cavity and part of the fresh air entering from the fresh air inlet into the air intake duct 210.

[0163] Specifically, in this embodiment, a fresh air inlet is provided on the side wall of the first receiving cavity 11. When the centrifugal fan 14 blows the gas from the first sub-cavity into the air inlet duct 210, due to the negative pressure, the outside air will enter the second sub-cavity through the fresh air inlet and then be blown into the air inlet duct 210 by the centrifugal fan 14.

[0164] 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 are blown into the air intake duct 210 and then into the target space 1000. When the temperature difference between indoors and outdoors is large, the fresh air valve can be closed, and only the gas in the first sub-cavity is blown into the target space 1000.

[0165] Specifically, in this embodiment, the fresh air inlet and fresh air valve can be located on the side wall of the first sub-cavity or on the side wall of the second sub-cavity. Preferably, the fresh air inlet and fresh air valve are located on the side wall of the first sub-cavity, so that the fresh air can pass through the evaporator 12 together with the gas flowing in through the return air duct 220 for heat exchange before being blown into the air inlet duct 210 by the centrifugal fan 14.

[0166] As a specific embodiment of this utility model, the second receiving cavity may further include a fourth partition 15, which divides the second receiving cavity into a third sub-cavity and a fourth sub-cavity. The evaporator 12 is located in the third sub-cavity, and the compressor is located in the fourth sub-cavity. The third sub-cavity may further include a second motor (not shown in the figure) and a second fan 16. The second motor drives the second fan 16 to rotate to dissipate heat from the condenser 13. The second motor drives the second fan 16 to rotate, and the second fan 16 carries away the heat from the condenser 13 during rotation, preventing the condenser 13 from overheating.

[0167] In a specific embodiment of this utility model, at least one side wall of the third sub-cavity is provided with an air outlet 17, and a grille 18 is provided at the air outlet 17. The condenser 13 is arranged around the side wall of the third sub-cavity where the air outlet 17 is not provided. Specifically, the grille 18 in this embodiment can prevent external dust from entering the second receiving cavity, and can also protect the outside world to prevent the fan from causing harm to people outside.

[0168] Specifically, the second fan 16 in this embodiment can be an axial flow fan.

[0169] As a specific embodiment of this utility model, the air intake volume of the air supply duct 20 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.

[0170] Specifically, when the fresh air valve in this embodiment is closed, and the air is in complete internal circulation, and the wall-penetrating section 211 of the air intake 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 air supply duct 20 and the power of the centrifugal fan 14. Of course, the size of the fresh air inlet will also have a certain impact on the intake air volume.

[0171] As a specific embodiment of this utility model, the air supply duct 20 may include a wall-penetrating section 211, a transition section 212, and an air supply section 213 connected in sequence. The transition section 212 includes a first end near the wall-penetrating section 211 and a second end near the air supply section 213. The structure of the pipe wall of the transition section 212 at the first end can be the same as the structure of the pipe wall of the wall-penetrating section 211. The structure of the pipe wall of the transition section 212 at the second end can be the same as the structure of the pipe wall of the air supply section 213. In this way, the two ends of the transition section 212 maintain a consistent shape with the wall-penetrating section 211 and the air supply section 213, respectively, which can eliminate local stress concentration caused by abrupt changes in cross-section or material differences, enhance the deformation resistance of the air supply duct 20, and at the same time, reduce the turbulence intensity of the airflow at the connection point through a smooth transition, thereby reducing wind resistance and energy loss.

[0172] Understandably, by dividing the air supply duct 20 into a wall-penetrating section 211, a transition section 212, and an air supply section 213, and by limiting the isomorphism between the two ends of the transition section 212 and the wall-penetrating section 211 and the air supply section 213, the mechanical stability and airflow smoothness of the air supply duct 20 can be optimized. The fact that the two ends of the transition section 212 maintain morphological consistency with the wall-penetrating section 211 and the air supply section 213 respectively can eliminate local stress concentration caused by abrupt changes in cross-section or material differences, enhance the deformation resistance of the air supply duct 20, and simultaneously reduce the turbulence intensity at the connection point through a smooth transition, thereby reducing wind resistance and energy loss.

[0173] Furthermore, the through-wall section 211 is used to pass through the wall so that the end of the air supply duct 20 extends into the target space. The cross-section of the through-wall section 211 can be circular or other shapes to fit the through-wall opening. The diameter of the through-wall section 211 is less than or equal to 160 mm. The ratio of the cross-sectional area of ​​the through-wall section 211 to the power of the air conditioner 1 is less than or equal to 57.37 cm². 2 / kw, where the cross-sectional area of ​​the wall-penetrating section 211 is less than or equal to 200cm². 2 For example, when the power of the air conditioner 1 in the wall-penetrating section 211 of this embodiment is 1.5 horsepower or higher, the upper limit of the cross-sectional area of ​​the corresponding wall-penetrating section 211 is 200 cm². 2 When the power of air conditioner 1 is lower, the cross-sectional area of ​​its wall-penetrating section 211 can be smaller. The cross-sectional area of ​​the wall-penetrating section 211 can be determined according to actual needs, and this application does not impose any restrictions.

[0174] In this embodiment, the air intake volume of the air supply duct 20 can be 650m³. 3 / h11000m 3 / h. For example, the intake air volume can be 650 m³ / h. 3 / h, 700m 3 / h, 750m 3 / h、800m 3 / h、900m3 / h, 1000m 3 / h or 1100m 3 / h, etc. Specifically, when the air supply duct 20 of this embodiment is completely internally circulated and the wall-penetrating section 211 of the air supply duct 20 is limited to a diameter of less than 160mm, the air intake volume of the air supply duct 20 can reach 650m³ / h. 3 / h700m 3 / h. When the air supply duct 20 in this embodiment not only has internal circulation but also incorporates external fresh air, the intake air volume of the air supply duct 20 can reach 1100m³ / h. 3 / h or even higher.

[0175] It should be noted that the intake air volume is related to both the diameter of the air supply duct 20 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.

[0176] Optionally, the air conditioner 1 body 10 in this embodiment may be equipped with one air supply duct 20; of course, in other embodiments, multiple air supply ducts 20 may be equipped. Specifically, each air supply duct 20 may include a main pipe and at least one branch pipe. One end of each branch pipe is connected to the main pipe, and the other end is connected to the corresponding target space to supply air to the target space.

[0177] When a unit 10 is equipped with one air supply duct 20 and there are multiple target spaces, one main duct and multiple branch ducts can be used to supply air to different target spaces. When a unit 10 is equipped with multiple air supply ducts 20 and there are multiple target spaces, each air supply duct 20 can include a main duct, and the number of air supply ducts 20 is matched according to the number of target spaces. Each air supply duct 20 can supply air to one of the target spaces.

[0178] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0179] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0180] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0181] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0182] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioner, characterized in that, include: body; An air supply duct is provided, which has an air inlet duct and a return air duct arranged side by side. The first end of the air supply duct is connected to the body, and the second end of the air supply duct has an air inlet communicating with the air inlet duct and a return air inlet communicating with the return air duct. The gas that has been heated by the body flows to the target space through the air inlet duct, and the gas in the target space enters the housing of the body through the return air duct. An air outlet duct is connected to the air inlet and exposes the return air outlet. The air outlet duct includes an air outlet surface with an air outlet. The projection of the air outlet surface in a reference plane is located between the projections of the air inlet and the return air outlet in the reference plane. The reference plane is perpendicular to the air outlet direction of the air inlet duct. When the air outlet duct is installed at the target object in the target space, the air outlet surface forms a continuous surface with the side wall surface of the target object located on at least one side of the air outlet.

2. The air conditioner according to claim 1, characterized in that, Along the air outlet direction of the air inlet duct, at least a portion of the air outlet constitutes an air outlet area, which is spaced apart from the return air outlet.

3. The air conditioner according to claim 2, characterized in that, Along the air outlet direction of the air inlet duct, the distance between the air outlet area and the return air inlet is 15cm-30cm.

4. The air conditioner according to claim 2, characterized in that, A baffle plate is provided at one end of the air outlet duct near the air supply duct. The baffle plate partially blocks the air outlet so as to separate the air outlet area from the return air outlet.

5. The air conditioner according to claim 4, characterized in that, The air outlet is provided with a first baffle, which has a plurality of first through holes. The gas in the air outlet duct is blown out after passing through the first through holes. The baffle plate and the first baffle are stacked together.

6. The air conditioner according to claim 5, characterized in that, The wind deflector is located outside the first baffle and is parallel to the first baffle.

7. The air conditioner according to claim 6, characterized in that, The wind deflector is connected to at least one of the air outlet duct and the first baffle.

8. The air conditioner according to any one of claims 1-7, characterized in that, Also includes: A return air filter is provided at the return air inlet to filter impurities in the air.

9. The air conditioner according to claim 8, characterized in that, The return air filter includes: A filter support, which is snapped and fixed to the return air vent; The filter body has mesh holes and is connected to the filter support.

10. The air conditioner according to any one of claims 1-7, characterized in that, The air supply duct includes: tube body; A first partition is located inside the pipe body. The first partition extends in a direction parallel to the extension direction of the pipe body and divides the pipe body into the air inlet duct and the air return duct.

11. The air conditioner according to claim 10, characterized in that, The cross-sectional areas of the air intake duct and the air return duct are the same.

12. The air conditioner according to any one of claims 1-7, characterized in that, The air supply duct includes a wall penetration section, a transition section, and an air supply section connected in sequence. The transition section includes a first end near the wall-penetrating section and a second end near the air supply section. The structure of the pipe wall of the transition section at the first end is the same as the structure of the pipe wall of the wall-penetrating section, and the structure of the pipe wall of the transition section at the second end is the same as the structure of the pipe wall of the air supply section. Both the return air inlet and the air inlet are located at the end of the wall penetration section furthest from the transition section.

13. The air conditioner according to any one of claims 1-7, characterized in that, The main body is located outside the target space, and the air outlet duct is located inside the target space.

Images