Air conditioner

Abstract

The utility model provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner can comprise a machine body and at least one air supply pipeline, and the machine body can comprise a shell and an evaporator arranged in the shell. According to the scheme, the air supply pipeline achieves the purpose of conveying air in the machine body to the target space through the air inlet duct and the air return duct, and meanwhile the air in the target space flows back into the machine body. According to the air conditioner, the air is conveyed into the target space only through the air supply pipeline, the size of the indoor machine can be effectively reduced, meanwhile, only the air supply pipeline is arranged indoors, and machines such as an evaporator and a fan are not arranged, so that the sound is small when the air conditioner blows air in the target space, and the use experience of a user is improved. In addition, the air return duct is provided with a filtering structure, and the filtering structure at least can block impurities from the target space. By arranging the filtering structure, impurities from the target space can be prevented from entering the machine body, and normal work of the air conditioner is prevented from being affected.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an air conditioner. Background Technology

[0002] 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. Consequently, it cannot blend well into the home décor. Furthermore, when air returns from the indoor unit to the outdoor unit, impurities from the indoor air can enter the outdoor unit, affecting the normal operation of the air conditioner. Utility Model Content

[0003] One objective of the first aspect of this application is to provide an air conditioner that solves the problem in the prior art where impurities in indoor air can enter the outdoor unit and affect the normal operation of the air conditioner.

[0004] Specifically, this application provides an air conditioner, comprising:

[0005] The body includes a housing and an evaporator disposed in the housing;

[0006] An air supply duct, one end of which is connected to the body, and the other end of which can be extended into the target space, and an air inlet duct and an air return duct are provided inside the air supply duct;

[0007] The air inlet end of the air inlet duct is connected to the air outlet side of the evaporator, and the air outlet end of the air inlet duct can discharge air to the target space;

[0008] The air inlet of the return air duct is connected to the target space, and the air outlet of the return air duct is connected to the air inlet side of the evaporator; the return air duct is provided with a filter structure, which can at least block impurities from the target space.

[0009] Optionally, the filtration structure includes a first filter screen, which is disposed at the air outlet end of the return air duct;

[0010] The first filter screen is disposed on the housing, with the first surface of the first filter screen facing the air inlet side of the evaporator and the second surface of the first filter screen facing the air outlet end of the return air duct.

[0011] Optionally, the first filter screen is detachably mounted on the outside of the housing.

[0012] Optionally, the first filter screen is detachably installed inside the housing.

[0013] Optionally, the air supply duct is provided with a transition structure;

[0014] The adapter structure is provided with a first adapter part and a second adapter part. The air inlet end of the air inlet duct is connected to the air outlet side of the evaporator through the first adapter part, and the air outlet end of the return air duct is connected to the air inlet side of the evaporator through the second adapter part.

[0015] Optionally, the first filter screen at least covers the second adapter.

[0016] Optionally, the filtration structure includes a second filter screen, which is disposed at the air inlet end of the return air duct.

[0017] Optionally, the second filter screen is detachably disposed at the air inlet end of the return air duct.

[0018] Optionally, the air inlet end of the return air duct is provided with an installation component, which passes through the return air duct, and the second filter screen can be fixed to the return air duct through the installation component.

[0019] Optionally, the filter structure is an electrostatic adsorption filter structure.

[0020] The air conditioner of this solution may include a main unit and at least one air supply duct. The main unit may include a casing and an evaporator housed within the casing. The air supply duct of this solution delivers gas from the main unit to the target space via an inlet air duct and a return air duct, while simultaneously returning gas from the target space to the main unit. By delivering gas solely through the air supply duct to the target space, the size of the indoor unit can be effectively reduced. Furthermore, since the indoor unit only contains the air supply duct and lacks an evaporator and fan, the air conditioner operates quietly within the target space, improving the user experience. In addition, the return air duct is equipped with a filter structure, which can at least block impurities from the target space. This filter structure prevents impurities from the target space from entering the main unit, avoiding interference with the normal operation of the air conditioner.

[0021] Each air supply duct in this solution may include a wall penetration section, which can be circular with a diameter less than or equal to 160mm, and the diameter of the wall penetration section is suitable for air conditioners with a power greater than 1.5 horsepower. This satisfies both the power requirements of the air conditioner and the requirement that the wall penetration hole not be too large.

[0022] This solution incorporates a first baffle, a second baffle, and a third baffle at the air outlet duct. These three components achieve three levels of uniform airflow, resulting in well-uniform airflow from the air outlet duct with virtually no wind sensation, thus enhancing the user experience.

[0023] 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

[0024] 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:

[0025] 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;

[0026] 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;

[0027] Figure 3 This is a partial exploded view of the fuselage according to a specific embodiment of this application;

[0028] Figure 4 This is a partial explosion diagram of an air conditioner according to a specific embodiment of this application;

[0029] 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;

[0030] 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;

[0031] Figure 7 This is a schematic structural diagram of an air supply duct according to a specific embodiment of this application;

[0032] 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;

[0033] Figure 9 This is a partial schematic structural diagram of an air supply duct according to a specific embodiment of this application;

[0034] Figure 10 This is a partial schematic structural diagram of an air supply duct according to another specific embodiment of this application;

[0035] 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;

[0036] Figure 12This is a schematic structural diagram of an air outlet duct according to a specific embodiment of this application;

[0037] Figure 13 This is a schematic diagram of the internal structure of the fuselage according to a specific embodiment of this application;

[0038] Figure 14 This is a schematic structural diagram of a transition structure according to a specific embodiment of this application;

[0039] Figure 15 This is a schematic diagram of the transition segment in a specific embodiment of this application;

[0040] Figure 16 This is a schematic diagram of the air supply duct structure according to a specific embodiment of this application;

[0041] Figure 17 This is a structural schematic diagram of a through-wall segment according to a specific embodiment of this application;

[0042] Figure 18 This is a schematic diagram of the air supply section according to a specific embodiment of this application;

[0043] Figure 19 This is a schematic diagram of the air supply section according to another specific embodiment of this application;

[0044] Figure 20 This is a schematic structural diagram illustrating an air conditioner supplying air to multiple target spaces, representing another specific embodiment of this application.

[0045] Figure 21 This application also includes a schematic structural diagram of an air conditioner supplying air to multiple target spaces according to a specific embodiment;

[0046] Figure 22 This is a schematic diagram of the filter structure according to a specific embodiment of this application;

[0047] Figure 23 This is a schematic diagram of the filtering structure of another specific embodiment of this application. Detailed Implementation

[0048] 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.

[0049] 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 duct 300. The body 200 may include a housing 210 and an evaporator 220 disposed within the housing 210.

[0050] One end of the air supply duct 300 is connected to the body 200, and the other end of the air supply duct 300 is used to extend to the target space 400. An air inlet duct 310 and a return air duct 320 are provided inside the air supply duct 300.

[0051] The air inlet end of the air inlet duct 310 is connected to the air outlet end of the evaporator 220, and the air outlet end of the air inlet duct 310 can discharge air to the target space 400; the air inlet end of the return air duct 320 can be connected to the target space 400, and the air outlet end of the return air duct 320 is connected to the air inlet end of the evaporator 220. The gas after heat exchange in the evaporator 220 flows into the target space 400 through the air inlet duct 310, and the gas in the target space 400 enters the evaporator 220 inside the casing 210 through the return air duct 320.

[0052] In one embodiment, the housing 200 includes a compressor 240 and a condenser 230, with both the evaporator 220 and the condenser 230 connected to the compressor 240.

[0053] 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, and a compressor 240, meaning the body 200 includes the components of a conventional indoor and outdoor unit of an air conditioner 100. The air supply duct 300 in this embodiment, through an intake air duct 310 and a return air duct 320, achieves the purpose of transporting gas from the body 200 to the target space 400, while simultaneously returning gas from 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, and compressor 240 from both the indoor and outdoor units into the same machine, transporting gas to the target space 400 only through the air supply duct 300. This effectively reduces the size of the indoor unit. Furthermore, since the indoor unit only contains the air supply duct 300 and not the evaporator 220 or other components, the air conditioner 100 operates quietly within the target space 400, improving the user experience.

[0054] 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.

[0055] 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.

[0056] More specifically, such as Figure 6 As shown, 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.

[0057] 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).

[0058] As another specific embodiment of this application, the air supply duct 300 of this embodiment 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 / kw, wherein the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200 cm2.

[0059] 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 / kW. For example, in this embodiment, when the power of the air conditioner 100 in the wall-penetrating section 350 is 1.5 horsepower or higher, the upper limit of the cross-sectional area of ​​the corresponding wall-penetrating section 350 is 200 cm². When the power of the air conditioner 100 is lower, the cross-sectional area of ​​its wall-penetrating section 350 can be even smaller. Specifically, the ratio of the cross-sectional area to the power of the wall-penetrating section 350 of the air supply duct 300 in this embodiment is designed because, on the one hand, power has a significant limitation on the cross-sectional area; the cross-sectional area of ​​the air supply duct 300 at a certain power is fixed. On the other hand, it is subject to existing laws and regulations, and the cross-sectional area cannot be infinitely large.

[0060] Specifically, the cross-sectional shape of the wall-penetrating section 350 in this embodiment can be circular, square, or other shapes. Furthermore, most general wall-penetrating holes are circular; therefore, the wall-penetrating section 350 in this embodiment is preferably circular. 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, that is, the diameter is less than or equal to 160 mm.

[0061] 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.

[0062] 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 air inlet duct 310 and a return air duct 320.

[0063] More specifically, in this embodiment, the cross-sectional areas of the air inlet duct 310 and the air return duct 320 are the same. This ensures that the air volume of the air inlet and the air return is equivalent.

[0064] When the air supply duct 300 includes a main pipe 330 and a branch pipe 340, the air inlet duct 310 of the main pipe 330 and the air inlet 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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. When the air supply duct 300 is formed by connecting multiple duct units together, the multiple duct units are interlocked to form the entire duct. Specifically, retaining rings 390 are provided at the connection points between the duct units (e.g., Figure 9 As shown), the retaining ring 390 interlocks and seals the ends of the pipe units on both sides.

[0069] 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 inlet duct 310. The extension direction of the air outlet duct 500 is parallel to the air outlet direction of the air inlet duct 310. An air outlet 510 is provided at the air outlet duct 500. The gas in the air inlet duct 310 flows into the air outlet duct 500 and is blown out from the air outlet 510.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] Of course, in other embodiments, the air outlet 510 and the air outlet direction can be adaptively adjusted to meet different air outlet requirements.

[0075] 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.

[0076] The air supply duct 300 in this embodiment may include a wall-penetrating section 350, which is used to pass through the wall so that the end of the air supply duct 300 extends into the target space 400.

[0077] 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 / kw, wherein the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200 cm2.

[0078] 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 / 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 200 cm². When the power of the air conditioner 100 is lower, the cross-sectional area of ​​its wall-penetrating section 350 can be smaller. Furthermore, on the one hand, power has a significant limitation on cross-sectional area; the cross-sectional area of ​​the air supply duct 300 is fixed for a given power. On the other hand, it is subject to existing laws and regulations, and the cross-sectional area cannot be infinitely large. 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 is less than or equal to 57.37 cm² / kW, and the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200 cm², satisfying the size requirements of the wall-penetrating section 350 while further meeting the power requirements of the air conditioner 100.

[0079] 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.

[0080] 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 350 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.

[0081] Furthermore, most through-wall holes are circular in structure, so the through-wall section 350 in this embodiment is preferably circular.

[0082] 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, that is, the diameter is less than or equal to 160 mm.

[0083] As a specific embodiment of this application, the air outlet volume of the air supply duct 300 in this embodiment is 650 m³ / h to 1100 m³ / h. For example, the air outlet volume can be 650 m³ / h, 700 m³ / h, 750 m³ / h, 800 m³ / h, 900 m³ / h, 1000 m³ / h, or 1100 m³ / h, etc.

[0084] Specifically, when the air supply duct 300 of this embodiment is in complete internal circulation, and the wall-penetrating section 350 of the air supply duct 300 is limited to a diameter of 160mm, the air volume output of this embodiment can reach 650m³ / h to 700m³ / h. When the air supply duct 300 of this embodiment not only has internal circulation but also incorporates external fresh air, the air volume output of the air supply duct 300 of this embodiment can reach 1100m³ / h or even higher.

[0085] Specifically, the air volume is related to the diameter of the air supply duct 300 and the power of the centrifugal fan. Of course, the size of the fresh air opening of the equipment will also have a certain impact on the air volume.

[0086] As a specific embodiment of this application, such as Figures 7-10 As shown, the air supply duct 300 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 air inlet duct 310 and a return air duct 320.

[0087] More specifically, in this embodiment, the cross-sectional areas of the air inlet duct 310 and the air return duct 320 are the same. This ensures that the air volume of the air inlet and the air return is equivalent.

[0088] 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.

[0089] As a specific embodiment of this application, the air supply duct 300 in this embodiment is provided with an insulation layer (not shown in the figure) on its periphery. The insulation layer can insulate the outer wall of the air supply duct 300 and isolate it from the ambient temperature, thereby ensuring that the gas inside the duct maintains a stable temperature.

[0090] like Figure 16 As shown, the air supply duct 300 in this embodiment may include a wall-penetrating section 350, a transition section 301 and an air supply section 302 connected in sequence. The transition section 301 may include a first end 3011 near the wall-penetrating section 350 and a second end 3012 near the air supply section 302. The structure of the pipe wall of the transition section 301 at the first end 3011 is the same as the structure of the pipe wall of the wall-penetrating section 350, and the structure of the pipe wall of the transition section 301 at the second end 3012 is the same as the structure of the pipe wall of the air supply section 302.

[0091] Specifically, the air supply duct 300 in this embodiment may include a wall penetration section 350, a transition section 301, and an air supply section 302. A transition section 301 is provided between the wall penetration section 350 and the air supply section 302. When different air supply sections 302 or different wall penetration sections 350 are used according to different situations, only the structure of the transition section 301 needs to be changed, and the structure of other parts of the duct does not need to be changed, thereby improving the versatility of the duct and reducing production costs.

[0092] For example, when the size of the wall penetration section 350 changes, the size of the end of the transition section 301 closest to the wall penetration section 350 can be changed without changing the structure of the air supply section 302, thus reducing production costs.

[0093] As a specific embodiment of this application, the cross-sectional structure of the pipe wall of the through-wall section 350 is different from that of the pipe wall of the air supply section 302, and the cross-sectional structure of the pipe wall of the transition section 301 located at the first end 3011 is different from that of the pipe wall located at the second end 3012.

[0094] Specifically, in this embodiment, the cross-sectional structure of the wall of the through-wall section 350 can be circular, while the cross-sectional structure of the wall of the air supply section 302 can be square (e.g., ...). Figure 10 (as shown) or circular (such as) Figure 9 (As shown). When the cross-sectional structure of the pipe wall of the air supply section 302 is square, the cross-sectional structure of the pipe wall of the wall penetration section 350 is different from that of the air supply section 302. This makes the cross-sectional structure of the pipe wall at the first end 3011 of the transition section 301 connected to the wall penetration section 350 different from that at the second end 3012. Therefore, the transition section 301 is needed between the wall penetration section 350 and the air supply section 302.

[0095] More specifically, such as Figure 15As shown, in this embodiment, the cross-sectional structure of the pipe wall of the through-wall section 350 is circular, the cross-sectional structure of the pipe wall of the air supply section 302 is square, the cross-sectional structure of the pipe wall of the transition section 301 located at the first end 3011 is circular, and the cross-sectional structure of the pipe wall of the transition section 301 located at the second end 3012 is square. The cross-sectional structure of the pipe wall of the transition section 301 gradually transitions from circular to square in the direction from the first end 3011 to the second end 3012.

[0096] Specifically, generally speaking, the gas flow rate is related to the cross-sectional area of ​​the air supply duct 300. However, due to external factors, its structure can vary even with the same cross-sectional area. For example, since the wall penetration hole is preferably circular, the wall penetration section 350 of the air supply duct 300 is preferably circular. Furthermore, since the air supply section 302 is located outside the wall, considering both aesthetics and ease of installation, the cross-section of the air supply section 302 is square (e.g., ...). Figure 10 As shown (including rectangles and squares, with rectangles being preferred), a circular shape is more suitable. Therefore, the transition section 301 needs to transition from a circle to a square shape, which allows for smoother airflow. When the dimensions of the wall-penetrating section 350 or the structure of the air supply section 302 are changed, only the dimensions or structure of the transition section 301 can be changed, thereby increasing versatility and reducing production costs.

[0097] As a specific embodiment of this application, such as Figure 16 As shown, the air supply duct 300 in this embodiment may also include a partition to divide the air supply duct 300 into an air inlet duct 310 and a return air duct 320. The partitions at the wall penetration section 350, the transition section 301 and the air supply section 302 are connected in sequence.

[0098] More specifically, such as Figure 15 As shown, in this embodiment, there is a preset angle between the plane of the partition at the wall-penetrating section 350 and the plane of the partition at the air supply section 302, so that there is a preset angle between the plane of the partition at the first end 3011 of the transition section 301 and the plane of the partition at the second end 3012; wherein, the preset angle is 0-90°.

[0099] Specifically, in this embodiment, the closed cross-sectional structures of the wall-penetrating section 350 and the air supply section 302 can both be circular. This ensures that the cross-sectional dimensions of the entire wall-penetrating section 350, air supply section 302, and transition section 301 are consistent, and the partition 340 is also in the same plane, i.e., the preset included angle is 0°. Of course, when the cross-sectional structure of the pipe wall of the air supply section 302 is square, and the cross-sectional structure of the pipe wall of the wall-penetrating section 350 is circular, the preset included angle can also be 0 degrees. Of course, due to the structure of the air outlet duct 500, its preset included angle can also be other angles.

[0100] For example, in this embodiment, such as Figure 15 and Figure 16 As shown, since the plane where the air outlet of the air outlet duct 500 is located is at a 45° angle to the horizontal plane, the partition of its wall-penetrating section 350 is also at a 45° angle to the horizontal plane, while the partition at the air supply section 302 is at a 90° angle to the horizontal plane. Therefore, the partition of the wall-penetrating section 350 and the partition of the air supply section 302 are at a 45° angle. Furthermore, since the partition at the first end 3011 of the transition section 301 is connected to the partition of the wall-penetrating section 350, and the partition at the second end 3012 of the transition section 301 is connected to the partition of the air supply duct, in order to avoid gas turbulence caused by abrupt changes in the position of the partition, the partition of the transition section 301 in this embodiment gradually bends from the first end 3011 to the second end 3012.

[0101] like Figure 17 As shown in the illustration, in a specific embodiment of this application, the through-wall section 350 may be provided with a plug-in portion 351. When the through-wall section 350 is connected to the transition section 301, the plug-in portion 351 may be inserted into the inner side of the transition section 301. The plug-in portion 351 may be a protruding or extended structure, and its shape and size may match the inner side of the transition section 301. The through-wall section 350 may be connected to the transition section 301 by inserting the plug-in portion 351.

[0102] Specifically, the insertion portion 351 may be provided with an insertion groove 352, which can be used to pass through the partition of the transition section 301. The insertion groove 352 can be a recess on the insertion portion 351, and its shape and size match the partition of the transition section 301. The insertion groove 352 can extend along the length direction of the insertion portion 351 to ensure that the partition can be smoothly inserted and fixed in the insertion groove 352.

[0103] Specifically, the length direction of the insertion slot 352 can be the same as the length direction of the inner partition of the through-wall section 350, and the inner partition of the through-wall section 350 and the insertion slot 352 can be arranged opposite to each other. This ensures that when the through-wall section 350 is connected to the transition section 301, the partition of the transition section 301 is inserted into the insertion slot 352 and abuts against the partition of the through-wall section 350, so that the partition will not be misaligned or have gaps at the connection, thereby allowing the airflow at the connection to be smooth.

[0104] More specifically, the outer diameter of the insertion part 351 can be smaller than the outer diameter of the through-wall section 350, and the outer diameter of the through-wall section 350 can be the same as the outer diameter of the transition section 301. This allows the size of the insertion part 351 to be slightly smaller than the main body of the through-wall section 350 and the transition section 301, enabling the insertion part 351 to be smoothly inserted into the inside of the transition section 301 without causing installation difficulties or loose connections due to an excessively large outer diameter. Having the outer diameter of the through-wall section 350 the same as the outer diameter of the transition section 301 ensures a smooth appearance at the connection point.

[0105] When connecting the through-wall section 350 to the transition section 301, the partition inside the transition section 301 is aligned with the insertion groove 352 of the insertion part 351 on the through-wall section 350. Since the outer diameter of the insertion part 351 is smaller than the outer diameter of the through-wall section 350, and the outer diameter of the through-wall section 350 is the same as the outer diameter of the transition section 301, the insertion part 351 can be smoothly inserted into the inner side of the transition section 301. After the insertion part 351 is fully inserted into the inner side of the transition section 301, the partition of the transition section 301 will enter the insertion groove 352 of the insertion part 351 and tightly abut against the partition inside the through-wall section 350 to ensure the sealing of the connection.

[0106] like Figure 9 As shown in the figure, as a specific embodiment of this application, the air supply section 302 of this embodiment may include a multi-section air supply structure 3021, which is connected in sequence to form the air supply section 302. A retaining ring 390 may be provided at the connection position of the multi-section air supply structure 3021, which retains and seals the ends of the air supply structures 3021 on both sides.

[0107] Specifically, such as Figure 18 and Figure 19 In the two adjacent air supply structures 3021, one air supply structure 3021 may be provided with a first connecting part 3022, and the other air supply structure 3021 may be provided with a second connecting part 3023. The first connecting part 3022 and the second connecting part 3023 are connected together. The connection method of the first connecting part 3022 and the second connecting part 3023 can be plug-in, snap-fit, or threaded connection. The design of the first connecting part 3022 and the second connecting part 3023 enables the two adjacent air supply structures 3021 to be quickly and firmly connected together, ensuring smooth airflow transition and overall structural stability.

[0108] More specifically, the first connecting part 3022 can be sleeved around the second connecting part 3023. The second connecting part 3023 has a partition, which can be connected to the partition in the adjacent air supply structure 3021. The inner diameter of the first connecting part 3022 can be slightly larger than the outer diameter of the second connecting part 3023, so that the first connecting part 3022 can be smoothly sleeved around the second connecting part 3023. The second connecting part 3023 can be provided with a connecting groove 3024, and the first connecting part 3022 can be correspondingly provided with a protrusion that can be inserted into the connecting groove 3024. The length direction of the connecting groove 3024 can be consistent with the length direction of the partition in the second connecting part 3023, and the length direction of the protrusion can be consistent with the length direction of the partition in the adjacent air supply structure 3021. This ensures that when the first connecting part 3022 is sleeved around the second connecting part 3023, the partition in the second connecting part 3023 is connected to the partition in the adjacent air supply structure 3021.

[0109] As a specific embodiment of this application, such as Figures 22 to 23 As shown, the return air duct 320 is equipped with a filter structure 700, which can at least block impurities from the target space 400.

[0110] The filter structure 700 includes a first filter screen 701, which is disposed at the air outlet end of the return air duct 320.

[0111] The first filter 320 is disposed on the housing 210, with the first surface of the first filter 701 facing the air inlet side of the evaporator 220 and the second surface of the first filter 701 facing the air outlet end of the return air duct 320.

[0112] The first surface of the first filter 701 can face the air inlet side of the evaporator, and the second surface of the first filter 701 can face the air outlet end of the return air duct 320. Before entering the evaporator 220, the return airflow passes through the second surface of the first filter 701, which is the windward side of the first filter 701 and is mainly responsible for intercepting dust in the return airflow. The first surface of the first filter 701 faces the air inlet side of the evaporator 220, ensuring that the filtered airflow can smoothly enter the evaporator 220. This effectively filters dust, particulate matter, and other impurities in the return air, preventing these pollutants from entering the evaporator 220 and affecting its heat exchange efficiency and the normal operation of the air conditioning system.

[0113] Specifically, the first filter screen 701 is detachably installed on the outside of the housing 210. The first filter screen 701 can be connected to the housing 210 by bolts or by clips. By setting the first filter screen 701 to be detachably connected to the housing, convenient and quick maintenance and replacement of the first filter screen 701 can be achieved.

[0114] The first filter screen 701 is detachably installed inside the housing 210. By placing the first filter screen 701 inside the housing 210, the housing 210 can protect the edge of the first filter screen 701 and extend its service life.

[0115] As a specific embodiment of this application, the air supply duct 300 is provided with a transition structure 900.

[0116] The adapter structure 900 is provided with a first adapter part 910 and a second adapter part 920. The air inlet end of the air inlet duct 310 is connected to the air outlet side of the evaporator 220 through the first adapter part 910, and the air outlet end of the return air duct 320 is connected to the air inlet side of the evaporator 220 through the second adapter part 920. By setting the adapter structure 900, the air inlet end of the air inlet duct 310 is connected to the air outlet side of the evaporator 220, and the air outlet end of the return air duct 320 is connected to the air inlet side of the evaporator 220, which has high adaptability.

[0117] The first filter 701 at least covers the second transition section 920, ensuring that the first filter 701 can filter impurities in the airflow entering the air inlet side of the evaporator 220 in a timely manner.

[0118] The filter structure 700 includes a second filter 702, which is disposed at the air inlet of the return air duct 320. It can effectively filter dust, particulate matter and other impurities in the return air, preventing these pollutants from entering the return air duct 320 and thus affecting the heat exchange efficiency of the evaporator 220 and the normal operation of the air conditioning system.

[0119] The second filter 702 can be installed at the air inlet of the return air duct 320. The air inlet of the return air duct 320 is the entrance where the return airflow enters the return air duct 320. Installing a filter here can filter pollutants in the return air as soon as possible.

[0120] The second filter 702 is detachably installed at the air inlet of the return air duct 320. By detachably installing the second filter 702 at the air inlet of the return air duct 320, it is convenient to quickly maintain and replace the second filter 702, ensuring the efficiency of filtering impurities.

[0121] In one embodiment, a mounting member 710 is provided at the air inlet end of the return air duct 320. The mounting member 710 passes through the return air duct 320, and the second filter screen 702 can be fixed to the return air duct 320 through the mounting member 710. By providing the mounting member 710, the installation stability of the second filter screen 702 can be effectively improved.

[0122] Specifically, the filter structure 700 is an electrostatic adsorption type filter structure 700. By setting it to electrostatic adsorption, the replacement of the filter structure can be further facilitated, ensuring the filtration effect. Furthermore, the electrostatic adsorption type filter structure 700 can also extend the service life of the filter structure 700 and reduce the frequency of replacement.

[0123] 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.

[0124] More specifically, such as Figure 6 As shown, 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.

[0125] 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).

[0126] 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 inlet duct 310. The extension direction of the air outlet duct 500 is parallel to the air outlet direction of the air inlet duct 310. An air outlet 510 is provided at the air outlet duct 500. The gas in the air inlet duct 310 flows into the air outlet duct 500 and is blown out from the air outlet 510.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] Of course, in other embodiments, the air outlet 510 and the air outlet direction can be adaptively adjusted to meet different air outlet requirements.

[0132] 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 body includes a housing and an evaporator disposed in the housing; An air supply duct, one end of which is connected to the body, and the other end of which can be extended into the target space, and an air inlet duct and an air return duct are provided inside the air supply duct; The air inlet end of the air inlet duct is connected to the air outlet side of the evaporator, and the air outlet end of the air inlet duct can discharge air to the target space; The air inlet of the return air duct is connected to the target space, and the air outlet of the return air duct is connected to the air inlet side of the evaporator; the return air duct is provided with a filter structure, which can at least block impurities from the target space.

2. The air conditioner according to claim 1, characterized in that, The filtration structure includes a first filter screen, which is disposed at the air outlet end of the return air duct. The first filter screen is disposed on the housing, with the first surface of the first filter screen facing the air inlet side of the evaporator and the second surface of the first filter screen facing the air outlet end of the return air duct.

3. The air conditioner according to claim 2, characterized in that, The first filter screen is detachably mounted on the outside of the housing.

4. The air conditioner according to claim 3, characterized in that, The first filter screen is detachably installed inside the housing.

5. The air conditioner according to claim 2, characterized in that, The air supply duct is equipped with a transition structure; The adapter structure is provided with a first adapter part and a second adapter part. The air inlet end of the air inlet duct is connected to the air outlet side of the evaporator through the first adapter part, and the air outlet end of the return air duct is connected to the air inlet side of the evaporator through the second adapter part.

6. The air conditioner according to claim 5, characterized in that, The first filter screen covers at least the second adapter section.

7. The air conditioner according to any one of claims 1-6, characterized in that, The filtration structure includes a second filter screen, which is disposed at the air inlet end of the return air duct.

8. The air conditioner according to claim 7, characterized in that, The second filter screen is detachably installed at the air inlet end of the return air duct.

9. The air conditioner according to claim 8, characterized in that, The air inlet end of the return air duct is provided with an installation component, which passes through the return air duct, and the second filter screen can be fixed to the return air duct through the installation component.

10. The air conditioner according to claim 1, characterized in that, The filter structure is an electrostatic adsorption filter structure.

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