Air supply pipeline and air conditioner

Abstract

The embodiment of the utility model provides an air supply pipeline and an air conditioner, and relates to the technical field of air conditioners. The air supply pipeline comprises a through-wall section, a transition section and an air supply section; the through-wall section is used for penetrating through a wall body to enable the end part of the air supply pipeline to extend into a target space; the transition section comprises a first end part close to the through-wall section and a second end part close to the air supply section, the structure of the pipe wall of the transition section at the first end part is the same as that of the pipe wall of the through-wall section, and the structure of the pipe wall of the transition section at the second end part is the same as that of the pipe wall of the air supply section. When different air supply sections or different through-wall sections are used according to different conditions, only the structure of the transition section needs to be changed, pipeline structures of other parts do not need to be changed, the universality of the pipeline is improved, and the problem that the universality of the air supply pipeline of the air conditioner is poor in different scenes is solved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning, and more particularly to an air supply duct and an air conditioner. Background Technology

[0002] Household wall-mounted air conditioners are divided into indoor and outdoor units. However, regardless of the type of model, because the indoor unit contains core components such as heat exchangers, motors, and fan blades, its external size cannot be designed to be exquisite and compact, and therefore it cannot be well integrated into the home decoration environment.

[0003] Currently, there are air conditioners that place the unit outside the wall and only use air supply ducts to deliver air into the target space. The air supply ducts of this type of air conditioner generally need to extend from the outside to the inside. The structure of the outside and the structure that passes through the wall can be designed according to the actual situation and are not exactly the same. As a result, different ducts may be used in different scenarios, which may require the replacement of all air supply ducts. This makes the versatility of the same type of ducts not strong, and thus greatly increases the production cost. Utility Model Content

[0004] This application provides an air supply duct and an air conditioner to solve the problem of poor versatility of air supply ducts in different scenarios in the prior art.

[0005] In a first aspect, this application provides an air supply duct, which includes a wall-penetrating section, a transition section, and an air supply section;

[0006] The through-wall section is used to pass through the wall so that the end of the air supply duct extends into the target space.

[0007] 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.

[0008] As an optional implementation, the cross-sectional structure of the pipe wall of the wall-penetrating section is different from that of the pipe wall of the air supply section, and the cross-sectional structure of the pipe wall of the transition section located at the first end is different from that of the pipe wall located at the second end.

[0009] As an optional implementation, the cross-sectional structure of the pipe wall of the wall-penetrating section is circular, and the cross-sectional structure of the pipe wall of the air supply section is square.

[0010] The cross-sectional structure of the pipe wall at the first end of the transition section is circular, and the cross-sectional structure of the pipe wall at the second end of the transition section is square. The cross-sectional structure of the pipe wall of the transition section gradually transitions from circular to square in the direction from the first end to the second end.

[0011] As an optional implementation, the air supply duct further includes a baffle to divide the air supply duct into an air inlet duct and a return air duct, with the baffles at the wall penetration section, the transition section, and the air supply section connected in sequence.

[0012] As an optional implementation, there is a preset angle between the plane of the partition at the wall penetration section and the plane of the partition at the air supply section, so that there is a preset angle between the plane of the partition at the first end of the transition section and the plane of the partition at the second end; wherein, the preset angle is 0-90°.

[0013] As an optional implementation, the preset included angle is 45°, and the partition of the transition section gradually bends and transitions from the first end to the second end.

[0014] As an optional implementation, the through-wall section is provided with a plug-in part, and when the through-wall section is connected to the transition section, the plug-in part is inserted into the inner side of the transition section.

[0015] As an optional implementation, the plug-in portion is provided with a plug-in groove, which is used to pass through the partition of the transition section.

[0016] As an optional implementation, the length direction of the insertion slot is the same as the length direction of the inner partition of the through-wall section, and the inner partition of the through-wall section is arranged opposite to the insertion slot;

[0017] When the through-wall section is connected to the transition section, the partition of the transition section is inserted into the insertion slot and abuts against the partition of the through-wall section.

[0018] As an optional implementation, the outer diameter of the plug portion is smaller than the outer diameter of the through-wall section, and the outer diameter of the through-wall section is the same as the outer diameter of the transition section.

[0019] Secondly, this application provides an air conditioner that includes any of the aforementioned air supply ducts.

[0020] The air supply duct and air conditioner provided in this application embodiment include a wall-penetrating section, a transition section, and an air supply section. The wall-penetrating section is used to pass through the wall so that the end of the air supply duct extends into the target space. 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. When different air supply sections or different wall-penetrating sections are used according to different situations, only the structure of the transition section needs to be changed, without changing the structure of other parts of the duct. This can improve the versatility of the duct, reduce production costs, and solve the problem of poor versatility of air conditioning air supply ducts in different scenarios. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic structural diagram of the air supply duct provided in the embodiments of this application;

[0023] Figure 2 A schematic structural diagram of the wall-penetrating section of an air supply duct provided in an embodiment of this application;

[0024] Figure 3 A schematic structural diagram of the air supply section of an air supply duct provided in an embodiment of this application;

[0025] Figure 4 A schematic structural diagram of the air supply section of an air supply duct provided in another embodiment of this application;

[0026] Figure 5 A schematic structural diagram of the transition section of the air supply duct provided in the embodiments of this application;

[0027] Figure 6 An exploded view of the air supply duct provided in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 301 - Transition section; 3011 - First end; 3012 - Second end;

[0030] 302 - Air supply section; 3021 - Air supply structure;

[0031] 310 - Air intake duct;

[0032] 320 - Return air duct;

[0033] 350 - Through-wall section; 351 - Plug-in part; 352 - Plug-in slot;

[0034] 360-tube body;

[0035] 370-partition;

[0036] 380-Ring.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] As the background technology shows, household wall-mounted air conditioners are divided into indoor units and outdoor units. However, regardless of the type of model, because the indoor unit contains core components such as heat exchangers, motors, and fan blades, its external dimensions cannot be designed to be exquisite and compact, thus it cannot be well integrated into the home decoration environment.

[0040] Currently, there are air conditioners that place the unit outside the wall and only use air supply ducts to deliver air into the target space. The air supply ducts of this type of air conditioner generally need to extend from the outside to the inside. The structure of the outside and the structure that passes through the wall can be designed according to the actual situation and are not exactly the same. As a result, different ducts may be used in different scenarios, which may require the replacement of all air supply ducts. This makes the versatility of the same type of ducts not strong, and thus greatly increases the production cost.

[0041] In view of this, embodiments of this application provide an air supply duct and an air conditioner, wherein the air supply duct includes a wall-penetrating section, a transition section, and an air supply section; the wall-penetrating section is used to pass through a wall so that the end of the air supply duct extends into a target space. 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.

[0042] When different air supply sections or different wall penetration sections are used according to different situations, only the structure of the transition section needs to be changed, without changing the structure of other parts of the pipeline. This improves the versatility of the pipeline, reduces production costs, and can solve the problem of poor versatility of air conditioning air supply ducts in different scenarios.

[0043] 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.

[0044] Combination Figure 1 , Figure 2 and Figure 6 As shown, a first aspect of this application provides an air supply duct 300, including a wall-penetrating section 350, a transition section 301, and an air supply section 302 connected in sequence. The wall-penetrating section 350 is used to pass through a wall so that the end of the air supply duct 300 extends into a target space. The transition section 301 includes 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.

[0045] It is understood that the air supply duct 300 in this embodiment needs to pass through the wall to enter the target space. Therefore, the air supply duct 300 in this embodiment may include a wall-penetrating section 350.

[0046] For example, the cross-sectional shape of the through-wall segment 350 in this embodiment can be circular, square, or other shapes. Most through-wall holes are circular in structure, therefore, the through-wall segment 350 in this embodiment is preferably circular.

[0047] 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.

[0048] 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.

[0049] The ratio of the cross-sectional area of ​​the wall-penetrating section (350mm) to the power of the air conditioner (100W) is less than or equal to 57.37cm². 2 / kw, where the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200cm². 2 .

[0050] Specifically, in this embodiment, the ratio of the cross-sectional area of ​​the wall-penetrating section 350 of the air supply duct 300 to the power of the air conditioner 100 is less than or equal to 57.37 cm². 2 / kw. For example, when the power of the air conditioner 100 in the wall-penetrating section 350 of this embodiment is 1.5 horsepower or higher, the upper limit of the cross-sectional area of ​​the corresponding wall-penetrating section 350 is 200cm². 2 When the power of the air conditioner is smaller (e.g., 100), the cross-sectional area of ​​its wall-penetrating section (e.g., 350) can be even smaller.

[0051] In addition, on the one hand, power has a large limitation on cross-sectional area, and the cross-sectional area of ​​the air supply duct 300 is fixed under a certain power. On the other hand, it is limited by installation conditions, and the cross-sectional area cannot be infinitely large.

[0052] 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. 2 / kw, and the cross-sectional area of ​​the 350mm section penetrating the wall is less than or equal to 200cm². 2 This not only met the installation requirements but also further satisfied the power requirements of the 100 air conditioner.

[0053] In some embodiments, the air volume of the air supply duct 300 in this embodiment is 650m³. 3 / h~1100m 3 / h. For example, the outlet 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.

[0054] 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 of this embodiment can reach 650m³ / h. 3 / h~700m 3 / h. When the air supply duct 300 in this embodiment not only has internal circulation but also incorporates external fresh air, the airflow rate of the air supply duct 300 in this embodiment can reach 1100m³ / h. 3 / h or even higher.

[0055] 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.

[0056] like Figure 3 As shown, the air supply section 302 may include multiple air supply structures 3021, which are connected sequentially to form the air supply section 302. A retaining ring 380 may be provided at the connection point of the multiple air supply structures 3021, which engages and seals the ends of the air supply structures 3021 on both sides.

[0057] In two adjacent air supply structures 3021, one air supply structure 3021 may be provided with a first connecting part, and the other air supply structure 3021 may be provided with a second connecting part, which are connected to each other. The connection method of the first connecting part and the second connecting part can be plug-in, snap-fit, or threaded connection, etc. The design of the first connecting part and the second connecting part enables the two adjacent air supply structures 3021 to be quickly and firmly connected together, ensuring smooth airflow transition and overall structural stability.

[0058] Specifically, the first connecting part can be fitted around the second connecting part. The second connecting part has a partition 370 inside, which can be connected to the partition 370 in the adjacent air supply structure 3021. The inner diameter of the first connecting part can be slightly larger than the outer diameter of the second connecting part, so that the first connecting part can be smoothly fitted around the outside of the second connecting part. The second connecting part can be provided with a connecting groove, and the first connecting part can be correspondingly provided with a protrusion that can be inserted into the connecting groove. The length direction of the connecting groove can be consistent with the length direction of the partition 370 in the second connecting part, and the length direction of the protrusion can be consistent with the length direction of the partition 370 in the adjacent air supply structure 3021. This ensures that when the first connecting part is fitted around the outside of the second connecting part, the partition 370 inside the second connecting part is connected to the partition 370 in the adjacent air supply structure 3021.

[0059] like Figure 6 As shown, in some embodiments, 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.

[0060] 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 4 (as shown) or circular (such as) Figure 3 (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.

[0061] like Figure 5 and Figure 6 As shown, in some embodiments, 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.

[0062] 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 4 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.

[0063] In some embodiments, the cross-section of the through-wall section 350 is circular, and the diameter of the through-wall section 350 is less than or equal to 160 mm.

[0064] Specifically, in this embodiment, the wall-penetrating segment 350 can be circular, and its diameter is less than or equal to 160 mm. Furthermore, the diameter of the wall-penetrating segment 350 is designed to match the power of the air conditioner 100, which is greater than 1.5 horsepower. This satisfies both the power requirements of the air conditioner 100 and the requirement that the wall-penetrating hole not be too large.

[0065] Furthermore, most through-wall holes are circular in structure, so the through-wall section 350 in this embodiment is preferably circular.

[0066] Specifically, the cross-sectional shape of the wall-penetrating section 350 in this embodiment can be circular, square, or other shapes. Preferably, the shape of the wall-penetrating section 350 of the air conditioner 100 in this embodiment is circular, and the cross-sectional area of ​​the wall-penetrating section 350 is less than or equal to 200 cm². 2 That is, the diameter is less than or equal to 160mm.

[0067] like Figure 6As shown, in some embodiments, the air supply duct 300 may also include a partition 370 to divide the air supply duct 300 into an air inlet duct 310 and a return air duct 320, with the partitions 370 at the wall penetration section 350, the transition section 301 and the air supply section 302 connected in sequence.

[0068] Specifically, the air supply duct 300 may include a duct body 360 and a partition 370. The partition 370 located in the duct body 360 may extend in a direction parallel to the extension direction of the duct body 360 to divide the duct body 360 into an air inlet duct 310 and a return air duct 320.

[0069] More specifically, the cross-sectional areas of the air intake duct 310 and the return air duct 320 are the same. This ensures that the air volume of the intake and return air is equivalent.

[0070] The air supply duct 300 is provided with an air outlet duct at the end, which is connected to the air inlet duct 310. The extension direction of the air outlet duct is parallel to the air outlet direction of the air inlet duct 310. An air outlet is provided at the air outlet duct. The gas in the air inlet duct 310 flows into the air outlet duct and is blown out from the air outlet.

[0071] In this embodiment, an air outlet duct is provided at the end of the air supply duct 300. When gas is delivered to the target space by the air supply duct 300, it is then blown out through the air outlet duct. The position and direction of the gas flow can be controlled by the air outlet duct.

[0072] It should be noted that the air outlet duct may include a side wall, which is installed on the target object to be installed, so that the air outlet surface is exposed when the air outlet duct is installed on the target object.

[0073] For example, when the cross-section of the air outlet duct is triangular and the target object is the 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 exposed. The plane where the air outlet is located forms a continuous zigzag surface with the surface of the ceiling and the side wall. The angle between the plane where the air outlet is located and the plane where the ceiling is located (i.e., the horizontal plane) can be 45°.

[0074] In other embodiments, the cross-section of the air outlet duct can also be quadrilateral, with two sides of the air outlet duct being installed with the top and sidewall of the target object, while the other two sides can have an air outlet at one location or both locations.

[0075] In some embodiments, an insulation layer (not shown in the figure) is provided on the wall of the air supply duct 300. The 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.

[0076] In some embodiments, the air supply duct 300 of this embodiment is provided with an insulation layer (not shown in the figure). 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 maintains a stable temperature inside the duct.

[0077] Specifically, there is a preset angle between the plane of the partition 370 at the wall-penetrating section 350 and the plane of the partition 370 at the air supply section 302, so that there is a preset angle between the plane of the partition 370 at the first end 3011 of the transition section 301 and the plane of the partition 370 at the second end 3012; wherein, the preset angle is 0-90°.

[0078] 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 370 is also in the same plane, i.e., the preset included angle is 0°. Of course, when the cross-sectional structure of the duct wall of the air supply section 302 is square, and the cross-sectional structure of the duct 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, the preset included angle can also be other angles.

[0079] like Figure 5 and Figure 6 As shown, in some embodiments, the preset included angle is 45°, and the partition 370 of the transition section 301 gradually bends and transitions from the first end 3011 to the second end 3012.

[0080] The plane where the air outlet of the air duct is located is at a 45° angle to the horizontal plane. Therefore, the partition 370 of its wall-penetrating section 350 is at a 45° angle to the horizontal plane, while the partition 370 at the air supply section 302 is at a 90° angle to the horizontal plane. Therefore, the partition 370 of the wall-penetrating section 350 and the partition 370 of the air supply section 302 are at a 45° angle. Furthermore, since the partition 370 at the first end 3011 of the transition section 301 is connected to the partition 370 of the wall-penetrating section 350, and the partition 370 at the second end 3012 of the transition section 301 is connected to the partition 370 of the air supply duct, in order to avoid gas turbulence caused by abrupt changes in the position of the partition 370, the partition 370 of the transition section 301 in this embodiment gradually bends from the first end 3011 to the second end 3012.

[0081] In some embodiments, 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.

[0082] The plug portion 351 can be a protruding or extended structure, and its shape and size match the inside of the transition section 301. The through-wall section 350 can be connected to the transition section 301 by inserting the plug portion 351.

[0083] In some embodiments, the plug-in portion 351 may be provided with a plug-in groove 352, which may be used to pass through the partition of the transition section 301.

[0084] The insertion slot 352 can be a groove on the insertion part 351, and its shape and size match the partition of the transition section 301. The insertion slot 352 can extend along the length of the insertion part 351 to ensure that the partition can be smoothly inserted and fixed in the insertion slot 352.

[0085] In some embodiments, the length direction of the insertion slot 352 may 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 may 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.

[0086] In some embodiments, the outer diameter of the plug portion 351 may be smaller than the outer diameter of the through-wall section 350, and the outer diameter of the through-wall section 350 may be the same as the outer diameter of the transition section 301.

[0087] 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 excessively large outer diameters. Having the same outer diameter for the through-wall section 350 and the transition section 301 ensures a smooth appearance at the connection point.

[0088] 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.

[0089] A second aspect of this application provides an air conditioner, including the air supply duct provided in any of the above embodiments.

[0090] The air supply duct has been described in detail in the above embodiments and will not be repeated here.

[0091] The air conditioner may include a main body and at least one air supply duct 300. The main body may include a housing and an evaporator, condenser, compressor, and fan disposed within the housing. One end of each air supply duct 300 is connected to the main body, and the other end extends to the target space. An air inlet duct 310 and a return air duct 320 are provided within the air supply duct 300. The air inlet duct 310 and the return air duct 320 are arranged side by side. Gas that has undergone heat exchange with the evaporator is blown into the air inlet duct 310 by the fan and then flows into the target space. Gas in the target space enters the housing through the return air duct 320.

[0092] Understandably, the unit includes components of a traditional air conditioner's indoor and outdoor units. The air supply duct 300, through the air inlet duct 310 and the air return duct 320, delivers the gas inside the unit to the target space, while simultaneously returning the gas from the target space back into the unit.

[0093] In other words, the air conditioner in this embodiment places the evaporator, condenser, compressor and fan of the traditional indoor and outdoor units in the same machine, and delivers the gas to the target space only through the air supply duct 300. This can effectively reduce the size of the indoor unit. At the same time, since there is only the air supply duct 300 and no evaporator and fan in the indoor unit, the air conditioner is quieter when blowing air in the target space, thus improving the user experience.

[0094] For example, a housing may be equipped with one air supply duct 300. Of course, in other embodiments, a housing may be equipped with multiple air supply ducts 300.

[0095] Each air supply duct 300 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.

[0096] When a unit is equipped with an air supply duct 300 and there are many target spaces, a main pipe and multiple branch pipes can be used to supply air to different target spaces.

[0097] When a unit is equipped with multiple air supply ducts 300 and there are many target spaces 400, each air supply duct 300 can include a main pipe and be matched according to the number of target spaces and the number of air supply ducts 300. Each air supply duct 300 can supply air to one of the target spaces.

[0098] The air conditioner may include a filter (not shown in the figure). The filter can be installed at the air outlet of the return air duct 320 and the air inlet of the evaporator. The air outlet of the return air duct 320 is the position before the return air enters the evaporator. Installing filters at the air outlet of the return air duct 320 and the air inlet of the evaporator can effectively filter dust, particulate matter and other impurities in the return air, preventing these pollutants from entering the evaporator and affecting the heat exchange efficiency of the evaporator and the normal operation of the air conditioning system.

[0099] The filter 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 the filter here can filter pollutants in the return air as soon as possible.

[0100] Specifically, the filter screen can be installed in the housing, located between the air outlet of the return air duct 320 and the air inlet side of the evaporator. The first surface of the filter screen can face the air inlet side of the evaporator, and the second surface of the filter screen can face the air outlet of the return air duct 320. Before entering the evaporator, the return airflow will pass through the second surface of the filter screen. The second surface is the windward side of the filter screen, which is mainly responsible for intercepting dust in the return airflow. The first surface of the filter screen faces the air inlet side of the evaporator to ensure that the filtered airflow can smoothly enter the evaporator.

[0101] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0102] In the description of this utility model, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0103] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 utility model.

Claims

1. An air supply duct, characterized in that, The air supply duct includes a wall penetration section (350), a transition section (301), and an air supply section (302); The through-wall section (350) is used to pass through the wall so that the end of the air supply duct extends into the target space; The transition section (301) includes 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).

2. The air supply duct according to claim 1, characterized in that, 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).

3. The air supply duct according to claim 2, characterized in that, The cross-sectional structure of the pipe wall of the through-wall section (350) is circular, and 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).

4. The air supply duct according to claim 1, characterized in that, The air supply duct also includes a partition (370) to divide the air supply duct into an air inlet duct (310) and a return air duct (320), and the partitions (370) at the wall penetration section (350), the transition section (301) and the air supply section (302) are connected in sequence.

5. The air supply duct according to claim 4, characterized in that, There is a preset angle between the plane of the partition (370) at the wall-penetrating section (350) and the plane of the partition (370) at the air supply section (302), so that there is a preset angle between the plane of the partition (370) at the first end (3011) of the transition section (301) and the plane of the partition (370) at the second end (3012); wherein the preset angle is 0-90°.

6. The air supply duct according to claim 5, characterized in that, The preset included angle is 45°, and the partition (370) of the transition section (301) gradually bends and transitions from the first end (3011) to the second end (3012).

7. The air supply duct according to claim 4, characterized in that, The through-wall section (350) is provided with a plug-in part (351). When the through-wall section (350) is connected to the transition section (301), the plug-in part (351) is inserted into the inner side of the transition section (301).

8. The air supply duct according to claim 7, characterized in that, The plug-in part (351) is provided with a plug-in groove (352), which is used to pass through the partition (370) of the transition section (301).

9. The air supply duct according to claim 8, characterized in that, The length direction of the insertion slot (352) is the same as the length direction of the inner partition (370) of the through-wall section (350), and the inner partition (370) of the through-wall section (350) is arranged opposite to the insertion slot (352); When the through-wall section (350) is connected to the transition section (301), the partition (370) of the transition section (301) is inserted into the insertion slot (352) and abuts against the partition (370) of the through-wall section (350).

10. The air supply duct according to claim 7, characterized in that, The outer diameter of the plug-in 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).

11. An air conditioner, characterized in that, Includes the air supply duct as described in any one of claims 1-10.

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