Duct assembly and mobile air conditioner

Abstract

The present invention discloses an air duct assembly and a mobile air conditioner having the air duct assembly, wherein the air duct assembly comprises: a first air duct; a second air duct; an air duct joint, the air duct joint is respectively connected to the ends of the first air duct and the second air duct, so that the second air duct is sleeved on the outside of the first air duct, and a first air duct is formed in the first air duct and a second air duct is formed between the first air duct and the second air duct; an anti-deviation structure, the anti-deviation structure is located in the second air duct, the anti-deviation structure comprises a limiting portion sleeved on the outside of the first air duct, the limiting portion extends toward the second air duct and is formed with a supporting portion abutting against the inner side wall of the second air duct. The first air duct and the second air duct are simultaneously connected through the air duct joint to form a tube-in-tube structure, and the anti-deviation structure can fix the relative position between the first air duct and the second air duct, prevent the first air duct from moving inside the second air duct, effectively ensure the smoothness of ventilation of the first air duct and the second air duct, and is conducive to noise reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air duct assembly and a mobile air conditioner. Background Art

[0002] Portable air conditioners usually use retractable air inlet and outlet ducts for air intake and exhaust. In the related art, the air inlet and outlet ducts are assembled into an inner and outer tube structure, with the inner tube inside the outer tube, which simplifies the structure; when working, the tube-in-tube structure takes in and exhausts air at the same time, and the outer tube is easily disturbed by the inner tube, resulting in poor ventilation. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an air duct assembly, which can improve the ventilation effect and ensure that the mobile air conditioner works more reliably.

[0004] The present invention also provides a mobile air conditioner having the above-mentioned air duct assembly.

[0005] According to a first aspect of the present invention, an air duct assembly includes:

[0006] First air duct;

[0007] Second air duct;

[0008] An air duct joint, wherein the air duct joint is respectively connected to the ends of the first air duct and the second air duct, so that the second air duct is sleeved on the outside of the first air duct, and a first air duct is formed in the first air duct and a second air duct is formed between the first air duct and the second air duct;

[0009] The anti-deflection structure is located in the second air duct, and the anti-deflection structure includes a limiting portion sleeved on the outside of the first air duct, the limiting portion extends toward the second air duct and is formed with a supporting portion abutting against the inner wall of the second air duct.

[0010] The duct assembly according to the embodiment of the present invention has at least the following beneficial effects: the first duct and the second duct are connected simultaneously through the duct joint to form a tube-in-tube structure, so that a first air duct is formed in the first duct, and a second air duct is formed between the first duct and the second duct, so that air intake and exhaust are separated; an anti-deviation structure is installed in the second air duct, and a limiting portion is sleeved on the outer side of the first duct, so that the anti-deviation structure can be fixed on the first duct to prevent the anti-deviation structure from falling off; the limiting portion extends toward the direction of the second duct to form a supporting portion, and the supporting portion extends to the inner wall of the second duct, so that the supporting portion can support the tube body of the second duct, so that the relative position between the first duct and the second duct is fixed, which plays a positioning role, can prevent the first duct from moving inside the second duct, effectively ensure the smoothness of ventilation of the first duct and the second duct, and is beneficial to noise reduction, and improves the ventilation effect of the tube-in-tube structure.

[0011] According to some embodiments of the present invention, a first annular groove is provided on the outer side of the first air duct, and the first annular groove is used to accommodate at least a portion of the limiting portion.

[0012] According to some embodiments of the present invention, the limiting portion includes a first clamp sleeved on the outside of the first air duct and a fastener for locking the first clamp, and the first clamp is provided with a convex edge that cooperates with the first annular groove.

[0013] According to some embodiments of the present invention, the support portion includes a first support rod and a second support rod, and the first support rod and the second support rod are symmetrically arranged on the outside of the first clamp.

[0014] According to some embodiments of the present invention, the limiting portion and the supporting portion are combined into an elastic ring.

[0015] According to some embodiments of the present invention, the air duct joint includes a first connecting member connected to the first air duct and a second connecting member connected to the second air duct, the first connecting member is provided with a first through hole communicating with the first air duct, and the second connecting member is provided with a second through hole communicating with the second air duct.

[0016] According to some embodiments of the present invention, the first connecting member is eccentrically disposed on the inner side of the second connecting member.

[0017] According to some embodiments of the present invention, the second connecting member includes a second clamp and a fastener for locking the second clamp, the inner wall of the second clamp is provided with a clamping protrusion, and the outer side of the second air duct is provided with a third annular groove that cooperates with the clamping protrusion.

[0018] According to some embodiments of the present invention, the air duct joint further includes a third connecting member, the third connecting member is provided with a slot, the end of the second air duct is fixed to the slot, and the third connecting member is fixedly connected to the second connecting member.

[0019] According to some embodiments of the present invention, the slot has a first side wall and a second side wall that are arranged opposite to each other, the first side wall is configured to be convex inwardly, and the second side wall is configured to be concave outwardly.

[0020] According to some embodiments of the present invention, a third annular groove is provided at the end of the second air duct, the third annular groove matches the shape of the first side wall, and the inner wall of the second connecting member is provided with a clamping protrusion that is clamped into the third annular groove.

[0021] According to some embodiments of the present invention, the third connecting member includes a first bent plate, a second bent plate and an elastic plate, the slot is formed between the first bent plate and the second bent plate, and the first bent plate and the second bent plate are connected by the elastic plate.

[0022] According to some embodiments of the present invention, the third connecting member includes a first buckle member and a second buckle member, one end of the first buckle member is provided with a snap-in hole, the second buckle member is provided with a plug-in block inserted into the snap-in hole, and the slot is formed between the first buckle member and the second buckle member.

[0023] According to some embodiments of the present invention, the third connecting member is provided with a mounting hole penetrating the slot, and a fastener penetrating the second air duct is connected to the mounting hole.

[0024] A mobile air conditioner according to an embodiment of the second aspect of the present invention comprises an air duct assembly according to an embodiment of the first aspect of the present invention.

[0025] The mobile air conditioner according to the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned air duct assembly, the smoothness of ventilation of the first air duct and the second air duct is effectively guaranteed, and it is beneficial to reduce noise, improve the ventilation effect of the pipe-in-pipe structure, and make the mobile air conditioner run more stably.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic diagram of an air duct assembly according to an embodiment of the first aspect of the present invention;

[0029] Figure 2 for Figure 1 A cross-sectional view of an embodiment of an air duct assembly is shown;

[0030] Figure 3 for Figure 2 A schematic diagram of the structure of the anti-deflection structure shown;

[0031] Figure 4 yes Figure 2 A schematic diagram of the connection structure between the anti-deflection structure and the first air duct is shown;

[0032] Figure 5 for Figure 1 A cross-sectional view of another embodiment of an air duct assembly is shown;

[0033] Figure 6 for Figure 5 A schematic diagram of the structure of the anti-deflection structure shown;

[0034] Figure 7 yes Figure 5 A schematic diagram of the connection structure between the anti-deflection structure and the first air duct is shown;

[0035] Figure 8 and Fig. 9 for Figure 1 A schematic structural diagram of an embodiment of an air duct joint is shown;

[0036] Fig.10 and Fig.11 for Figure 1 An exploded view of one embodiment of an air duct assembly is shown;

[0037] Fig.12 for Fig.11 An exploded schematic diagram of a third connecting member is shown;

[0038] Fig.13 for Figure 1 An exploded view of another embodiment of an air duct assembly is shown;

[0039] Fig.14 for Fig.13 A schematic structural diagram of a third connecting member is shown;

[0040] Fig.15 This is a schematic structural diagram of a mobile air conditioner according to an embodiment of the second aspect of the present invention.

[0041] Reference numerals:

[0042] 100, air duct assembly; 101, first air duct; 102, second air duct; 103, air duct joint;

[0043] 201, first air duct; 202, second air duct; 203, anti-deflection structure;

[0044] 301, limiting part; 302, supporting part; 303, convex edge; 304, first clamp; 305, first supporting rod; 306, second supporting rod; 307, first bending section; 308, second bending section;

[0045] 601, first ring body; 602, second ring body;

[0046] 801, first connecting member; 802, second connecting member; 803, first through hole; 804, second through hole; 805, second clamp; 806, clamping protrusion; 807, buckle;

[0047] 1001, third connecting member; 1002, slot; 1003, third annular groove; 1004, third through hole; 1005, first buckle member; 1006, second buckle member; 1007, fastener;

[0048] 1201, card hole; 1202, plug-in block; 1203, positioning groove; 1204, positioning plug plate; 1205, mounting column; 1206, mounting hole;

[0049] 1301, first bent plate; 1302, second bent plate; 1303, elastic plate;

[0050] 1500. Mobile air conditioner; 1501. Air conditioner body. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0054] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0055] Reference below Figures 1 to 14 The air duct assembly 100 according to the first embodiment of the present invention is described.

[0056] See also Figure 1 and Figure 2 As shown, the air duct assembly 100 of the embodiment of the present invention includes a first air duct 101, a second air duct 102 and an air duct joint 103. The first air duct 101 and the second air duct 102 are connected to the air duct joint 103 at the same time, and the first air duct 101 is located inside the second air duct 102, thereby forming a pipe-in-pipe structure. Among them, the inside of the first air duct 101 is a first air duct 201, and the second air duct 202 is formed between the first air duct 101 and the second air duct 102. The pipe-in-pipe structure composed of the first air duct 101 and the second air duct 102 is used to communicate with the outdoor environment to realize the air intake and exhaust of the mobile air conditioner 1500.

[0057] See also Figure 2 As shown, the first air duct 101 is an inner tube, the second air duct 102 is an outer tube, the first air duct 101 is used for exhaust, and the second air duct 102 is used for intake. In this case, the first air duct 201 is an exhaust air duct, and the second air duct 202 is an intake air duct; it can also be that the first air duct 101 is used for intake, and the second air duct 102 is used for exhaust. In this way, the intake and exhaust can be separated, and the cross-flow between the first air duct 201 and the second air duct 202 can be avoided. In addition, the pipe-in-pipe structure is more flexible to install and more convenient to use.

[0058] See also Figure 2 and 3 As shown, an anti-deflection structure 203 is installed in the second air duct 202, and the anti-deflection structure 203 includes a limiting portion 301. The anti-deflection structure 203 is sleeved on the outside of the first air duct 101 through the limiting portion 301, so that the anti-deflection structure 203 is fastened to the first air duct 101. The limiting portion 301 can be understood as matching with the tube body of the first air duct 101 and can be fastened to the tube body, so that the anti-deflection structure 203 is fixed to the first air duct 101 to prevent the anti-deflection structure 203 from falling off the tube body. At the same time, the limiting portion 301 extends toward the second air duct 102 to form a supporting portion 302, and the supporting portion 302 extends to the inner wall of the second air duct 102 and abuts against the inner wall. The abutment between the supporting portion 302 and the inner wall of the second air duct 102 can be understood as the supporting portion 302 is tightly attached to the inner wall, so that the supporting portion 302 can support the second air duct 102 and maintain a certain distance between the first air duct 101 and the second air duct 102.

[0059] See also Figure 3 and Figure 4 As shown, in some embodiments, the anti-deflection structure 203 is installed in the second air duct 202, and the limiting portion 301 includes a first clamp 304 and a fastener ( Figure 3 and Figure 4 ), wherein the first clamp 304 is sleeved on the outside of the first air duct 101, and the fastener is used to lock the first clamp 304 so that the first clamp 304 can be tightly sleeved on the tube body of the first air duct 101, for example, the first clamp 304 is locked by bolts to prevent the first clamp 304 from falling off the tube body. At the same time, a support portion 302 is provided on the outside of the first clamp 304, and the support portion 302 extends toward the direction of the second air duct 102. Specifically, the support portion 302 extends to the inner side wall of the second air duct 102 and abuts against the inner side wall. The abutment of the support portion 302 with the inner side wall of the second air duct 102 can be understood as the support portion 302 is in close contact with the inner side wall, so that the support portion 302 can support the second air duct 102.

[0060] It can be understood that the first air duct 101 and the second air duct 102 are both retractable hoses, and the anti-deflection structure 203 is fixed to the outside of the first air duct 101 through the first clamp 304, and supports the second air duct 102 through the support portion 302, so as to position the first air duct 101, so that the relative position between the first air duct 101 and the second air duct 102 can be fixed. During operation, the first air duct 201 is used for exhaust and the second air duct 202 is used for intake. Under the positioning effect of the anti-deflection structure 203, the first air duct 101 can be prevented from moving inside the second air duct 102, that is, the inner tube is positioned and will not move, and the first air duct 201 and the second air duct 202 can be kept from being deformed, effectively ensuring the smoothness of ventilation of the first air duct 201 and the second air duct 202, making the tube-in-tube structure more stable and reliable, and is conducive to reducing the resistance of air intake and exhaust, and playing a noise reduction role.

[0061] It should be noted that the air duct joint 103 is connected to the port position of the first air duct 101 and the second air duct 102. It can be understood that the air duct joint 103 plays a certain positioning role for the first air duct 101 and the second air duct 102, and the anti-deviation structure 203 can be installed in the middle position or other positions of the first air duct 101. When in use, the second air duct 102 and the first air duct 101 are synchronously extended and retracted, and the anti-deviation structure 203 moves with the first air duct 101, thereby maintaining the ventilation stability of the first air duct 101 and the second air duct 102, and preventing the first air duct 101 from moving.

[0062] In some embodiments, the first air duct 101 adopts a retractable bellows. It can be understood that the wall of the bellows is corrugated and can be folded or unfolded, so that the bellows can be retracted. Similarly, the second air duct 102 also adopts a bellows structure, and the corrugated structures of the first air duct 101 and the second air duct 102 are not shown in the drawings. During installation, the first clamp 304 is sleeved in the concave position of the corrugated structure, and the concave position forms a first annular groove (not shown in the figure). The cross-section of the first clamp 304 can be circular or flat, so that the first clamp 304 can be clamped in the first annular groove, and the installation structure is more firm and stable.

[0063] See also Figure 3 As shown, in some embodiments, the first clamp 304 is provided with a convex edge 303 extending toward the inside, and the convex edge 303 extends along the inner side edge of the first clamp 304 to form an annular edge. When installed, the convex edge 303 is correspondingly inserted into the first annular groove of the outer side wall of the first air duct 101, so that the first clamp 304 can be clamped on the first air duct 101. It can be understood that the corrugated structure of the first air duct 101 is distributed along the axial direction of the tube body, and the first clamp 304 can be selected according to the installation position. The first clamp 304 can be selected to be sleeved in the first annular groove at the corresponding position, and the installation is flexible and convenient. More than two anti-deviation structures 203 can be set on the first air duct 101 at the same time. The anti-deviation structures 203 are distributed at intervals along the tube body of the first air duct 101. In this way, by positioning the first air duct 101 at different positions, the stability of the tube-in-tube structure can be further improved, and the inner tube can be effectively prevented from moving inside the outer tube, and the structure is more reliable.

[0064] See also Figure 3 As shown, in some embodiments, the support portion 302 includes a first support rod 305 and a second support rod 306, and the first support rod 305 and the second support rod 306 are symmetrically arranged on the outside of the first clamp 304. One end of the first support rod 305 is connected to the hoop body, and the other end of the first support rod 305 extends to the inner side wall of the second air duct 102; at the same time, one end of the second support rod 306 is connected to the hoop body, and the other end of the second support rod 306 extends to the inner side wall of the second air duct 102. In this way, the first support rod 305 and the second support rod 306 can stably support the second air duct 102, and the support structure is more stable and firm, which plays a positioning role for the first air duct 101 and effectively prevents the first air duct 101 from moving inside the second air duct 102. During installation, the first support rod 305 and the second support rod 306 only contact the inner wall of the second air duct 102, which is convenient to install. The first support rod 305 and the second support rod 306 do not affect the ventilation of the second air duct 202, and the structure is practical and reliable.

[0065] See also Figure 3As shown, in some embodiments, a first bending section 307 is provided at the top of the first support rod 305, and a second bending section 308 is provided at the top of the second support rod 306. The first bending section 307 and the second bending section 308 are respectively in contact with the inner wall of the second air duct 102. The first bending section 307 and the second bending section 308 protect the second air duct 102, thereby preventing the tops of the first support rod 305 and the second support rod 306 from easily wearing the wall of the second air duct 102.

[0066] It should be noted that the first air duct 101 and the second air duct 102 can both be cylindrical tubes, and the first air duct 101 can be set at the center position or eccentric position of the second air duct 102. Regardless of the center position or eccentric position, the first air duct 101 and the second air duct 102 can be positioned by the anti-bias structure 203, and the support part 302 can be set to not limited to two support rods. For example, when the first air duct 101 is located at the center position of the second air duct 102, multiple support rods can be distributed along the circumference of the first air duct 101, so that the first air duct 101 can be stably supported between the second air duct 102.

[0067] See also Figure 4 As shown, in some embodiments, the first air duct 101 is a cylindrical tube body, the second air duct 102 is an elliptical tube body, and the first air duct 101 is eccentrically arranged on one side of the second air duct 102, so that the second air duct 202 can be concentrated on one side of the second air duct 102 for air intake, which is conducive to reducing wind resistance. It can be understood that one side of the first air duct 101 is close to the side wall of the second air duct 102, and the other side of the first air duct 101 and the second air duct 102 are supported by the first support rod 305 and the second support rod 306.

[0068] Specifically, the first support rod 305 and the second support rod 306 are symmetrically arranged on both sides of the second air duct 202, and the first support rod 305, the second support rod 306 and the first clamp 304 are an integral injection molding structure, and the structure is stable and reliable. Among them, the first support rod 305 can extend closely to the inner wall of one side of the second air duct 102, and the second support rod 306 can extend closely to the inner wall of the other side corresponding to the first support rod 305, so that the first support rod 305 and the second support rod 306 can stably support the second air duct 102.

[0069] See also Figures 5 to 7As shown, in some other embodiments, an anti-deflection structure 203 is installed in the second air duct 202, and the anti-deflection structure 203 includes a limiting portion 301, and the anti-deflection structure 203 can be elastically buckled on the outside of the first air duct 101 through the limiting portion 301, so that the anti-deflection structure 203 is fastened to the first air duct 101. The limiting portion 301 can be understood as matching with the tube body of the first air duct 101 and can be fastened on the tube body, so that the anti-deflection structure 203 is fixed on the first air duct 101, and prevents the anti-deflection structure 203 from falling off the tube body. At the same time, the limiting portion 301 extends toward the second air duct 102 to form a supporting portion 302, and the supporting portion 302 extends to the inner wall of the second air duct 102 and abuts against the inner wall. The abutment between the supporting portion 302 and the inner wall of the second air duct 102 can be understood as the supporting portion 302 is tightly attached to the inner wall, so that the supporting portion 302 can support the second air duct 102 and maintain a certain distance between the first air duct 101 and the second air duct 102.

[0070] For example, the limiting portion 301 may be a retaining spring, which matches the tube body of the first air duct 101, and is fastened along the circumference of the tube body by the retaining spring, so that the anti-deviation structure 203 is fastened to the first air duct 101; for another example, the limiting portion 301 may be an elastic tube clamp, which can be clamped on the outside of the first air duct 101 to prevent the anti-deviation structure 203 from falling off the tube body.

[0071] See also Figure 6 and Figure 7 As shown, in some embodiments, the limiting portion 301 and the supporting portion 302 are combined into an elastic ferrule. The ferrule is a closed-loop structure, and the shapes of the limiting portion 301 and the supporting portion 302 can be bent and formed according to the shape, size and positional relationship of the first air duct 101 and the second air duct 102. The ferrule of the embodiment is made of steel wire with a certain carbon content, has a sufficiently high strength, good elasticity and is not easy to bend. In this way, the limiting portion 301 formed by bending the ferrule can have a certain elasticity and can clamp the first air duct 101. During installation, the ferrule can be directly opened and put on the first air duct 101 by utilizing the elasticity of the ferrule, and fastened to the outside of the first air duct 101 by the limiting portion 301, and at the same time, the second air duct 102 is supported by the supporting portion 302. The installation is convenient and quick, the wind resistance is small, the ventilation of the air duct is not affected, and the structure is stable and reliable.

[0072] For example, the limiting portion 301 can be formed into an elliptical shape by bending the ring, and the width direction dimension of the elliptical shape is smaller than the diameter of the first air duct 101. The elliptical limiting portion 301 can be sleeved on the outside of the first air duct 101 and clamped on the tube body. The limiting portion 301 extends along the length direction of the elliptical shape to form a supporting portion 302 abutting against the second air duct 102, so that the ring can be fixed on the first air duct 101 and support the second air duct 102 at the same time, which can prevent the anti-deflection structure 203 from loosening and achieve the positioning purpose.

[0073] For another example, the limiting portion 301 can be bent by a ring to form a U-shaped structure. The limiting portion 301 can be put on the first air duct 101 through the U-shaped structure. The port of the U-shaped structure can clamp the first air duct 101, so as to achieve the purpose of fixing the anti-deviation structure 203. The port of the U-shaped structure can be extended to form a supporting portion 302 abutting against the second air duct 102, so as to support the second air duct 102 using the supporting portion 302.

[0074] It should be noted that the first air duct 101 and the second air duct 102 can both be cylindrical tubes, and the first air duct 101 can be arranged at the center position or the eccentric position of the second air duct 102. No matter it is the center position or the eccentric position, the first air duct 101 and the second air duct 102 can be positioned by the anti-bias structure 203. For example, when the first air duct 101 is located at the center position of the second air duct 102, it can be positioned by forming the support portion 302 along different directions, so that the first air duct 101 can be stably supported with the second air duct 102. For example, the limiting portion 301 and the support portion 302 are formed by bending the ring into a cross shape or a petal shape.

[0075] See also Figure 6 and Figure 7 As shown, in some embodiments, the limiting portion 301 is configured as a first ring body 601 formed by bending a ferrule, and the supporting portion 302 is configured as a second ring body 602 formed by bending a ferrule. Among them, the first ring body 601 is semicircular, and the first ring body 601 can be sleeved on the first air duct 101 and fasten the tube body through its own elastic force, so that the limiting portion 301 is fixed on the first air duct 101; the second ring body 602 extends along the inner wall of the second tube body to form an irregular semicircular shape, and the two ends of the second ring body 602 are respectively connected to the two ends of the first ring body 601, so that the ferrule is an irregular shape as a whole. As shown in the figure, the first ring body 601 is on the right side, and the second ring body 602 is on the left side. Of course, the shapes of the first ring body 601 and the second ring body 602 are not limited to the shapes shown in the embodiment. It can be understood that the first ring body 601 is close to the outer wall of the first air duct 101, and the second ring body 602 is close to the inner wall of the second air duct 102. The positioning structure of the anti-deflection structure 203 is stable and firm, which effectively ensures the smoothness of ventilation of the second air duct 202. The ring has a small volume and small wind resistance, and does not affect the ventilation of the second air duct 202.

[0076] In some embodiments, the first air duct 101 and the second air duct 102 are both corrugated tubes, and the tube wall of the corrugated tube is corrugated and can be folded or unfolded, so that the corrugated tube can be telescopic. The corrugated structure on the inner and outer tube walls of the corrugated tube has a recessed position, and the recessed position forms an annular groove, wherein the recessed position on the outer side of the first air duct 101 is the first annular groove, and the recessed position on the inner side of the second air duct 102 is the second annular groove. The embodiment adopts a ferrule that can match the first annular groove and the second annular groove, so that the first ring body 601 can be buckled in the first annular groove, so that the anti-deflection structure 203 is clamped on the first air duct 101, and the structure is practical and reliable, and the anti-deflection structure 203 is effectively prevented from loosening. At the same time, the second ring body 602 can be clamped in the second annular groove, so that the support portion 302 is positioned, effectively improving the structural stability of the anti-deflection structure 203.

[0077] It can be understood that the corrugated structures of the first air duct 101 and the second air duct 102 are distributed along the axial direction of the tube body, and the limiting part 301 and the supporting part 302 can be clamped in the annular groove at the corresponding position according to the installation position, and the installation is flexible and convenient. More than two anti-deviation structures 203 can be set on the first air duct 101 at the same time, and the anti-deviation structures 203 are distributed along the tube body of the first air duct 101 at intervals. In this way, by positioning the first air duct 101 at different positions, the stability of the tube-in-tube structure can be further improved, and the inner tube can be effectively prevented from moving inside the outer tube, and the structure is more reliable.

[0078] See also Figure 8 and Fig. 9 As shown, in some embodiments, the air duct joint 103 includes a first connecting member 801 and a second connecting member 802, wherein the first air duct 101 is connected to the first connecting member 801, the second air duct 102 is sleeved on the outside of the first air duct 101, the second connecting member 802 is connected to the second air duct 102, the first connecting member 801 is provided with a first through hole 803 connected to the first air duct 201, and the second connecting member 802 is provided with a second through hole 804 connected to the second air duct 202.

[0079] See also Figure 8 and Fig. 9 As shown, in some embodiments, the second connecting member 802 includes a second clamp 805 and a fastener (not shown) for locking the second clamp 805, the second through hole 804 is provided in the second clamp 805, and the inner wall of the second clamp 805 is provided with a clamping protrusion 806. The first connecting member 801 is located in the second through hole 804 and connected to the second clamp 805, and the outer side of the second air duct 102 is provided with a third annular groove 1003 ( Figure 8 and Fig. 9 not shown).

[0080] During assembly, the first air duct 101 is connected via the first connecting piece 801, the second clamp 805 is opened, the second air duct 102 is placed into the second clamp 805, and then the second clamp 805 is closed and locked via the fastener. The clamping protrusion 806 abuts against the third annular groove 1003 of the second air duct 102 to prevent the second air duct 102 from falling off, thereby achieving the connection between the first air duct 101 and the second air duct 102. Since there is no need for screws to pass through the second air duct 102, damage to the second air duct 102 can be avoided.

[0081] See also Figure 8 and Fig. 9 As shown, in some embodiments, the first connecting member 801 is provided with a buckle 807, and the buckle 807 is used to connect with the end of the first air duct 101. The end of the first air duct 101 is provided with a fourth ring groove (not shown in the figure) that cooperates with the buckle 807. The first connecting member 801 and the first air duct 101 are connected through the buckle 807 and the fourth ring groove, which can achieve rapid installation and disassembly and prevent the first air duct 101 from being damaged. It can be understood that in some other embodiments, the first connecting member 801 and the first air duct 101 can also be connected by structures such as screws, rivets or clamps.

[0082] In some embodiments, the first connecting member 801 is eccentrically arranged on the inner side of the second clamp 805, thereby ensuring that the first air duct 101 can be eccentrically arranged inside the second air duct 102. In the related art, some double air duct structures adopt a concentric arrangement, and the inner tube of the concentric arrangement is unevenly and unstable in force, and is easy to move inside relative to the outer tube. When moving, the inner tube is easy to block the air outlet, resulting in obstruction of ventilation between the outer tube and the inner tube, thereby affecting the operation of the mobile air conditioner 1500 and easily generating noise. Compared with the concentric arrangement of the first connecting member 801 and the second clamp 805, that is, the concentric arrangement of the first air duct 101 and the second air duct 102, the advantage of the eccentric arrangement of the air duct joint 103 in the embodiment of the present invention is that it can make the first air duct 101 mainly subject to the wind force on one side, reduce the movement of the first air duct 101, and further reduce the influence of the first air duct 101 on the ventilation of the second air duct 102.

[0083] See also Figures 10 to 12As shown, in some other embodiments, the air duct joint 103 includes a first connector 801, a second connector 802 and a third connector 1001, wherein the first air duct 101 is connected to the first connector 801, and the second connector 802 is sleeved on the end of the second air duct 102, wherein the third connector 1001 is provided with a slot 1002, the end of the second air duct 102 is fixed in the slot 1002, and the second connector 802 is fixedly connected to the third connector 1001. The end of the second air duct 102 is fixed in the slot 1002 of the third connector 1001, and the third connector 1001 is fixed on the second connector 802, and the second air duct 102 cannot be separated from the second connector 802, thereby ensuring the reliability of the air duct assembly 100 in use, eliminating the problem that the second air duct 102 of the existing air duct assembly 100 is easy to fall off in use, and bringing convenience to users.

[0084] See also Fig.11 As shown, in some embodiments, the slot 1002 has a first side wall and a second side wall arranged relatively to each other, the first side wall is set to be convex inward, and the second side wall is set to be concave outward, thereby limiting the slot 1002 to a curved shape such as a V-shape or an S-shape, and the end of the second air duct 102 is clamped in the slot 1002 by the third connecting member 1001, and the curved shape is conducive to preventing it from falling out. It can be understood that the inward convexity of the first side wall means that the first side wall protrudes into the slot 1002, and the outward concaveness of the second side wall means that it is depressed in the direction away from the slot 1002. The second air duct 102 is a tube made of plastic, and a spiral steel wire can be arranged inside the tube, which is simple to process and low in cost. The second air duct 102 is clamped and deformed in the slot 1002, and the inwardly convex first side wall acts as a stopper, which helps to prevent the second air duct 102 from falling out of the slot 1002. The first side wall is a convexity, which can be stuck between the two circles of steel wire in the second air duct 102, and the steel wire is used to further enhance the anti-fall-off performance. Moreover, the positioning is accurate, and during the assembly operation, it can remind workers whether the second air duct 102 is in place when inserted into the slot 1002, thereby improving the assembly efficiency. It is understandable that the second air duct 102 may not be provided with a spiral steel wire, and an inwardly concave third annular groove 1003 may be provided at the end of the second air duct 102. The shape of the third annular groove 1003 matches the first side wall, and the first side wall clamps the second air duct 102 through the third annular groove 1003 to prevent it from falling out.

[0085] See also Fig.11As shown, in some embodiments, the third annular groove 1003 is arranged around the end of the second air duct 102, the shape of the first side wall of the slot 1002 matches the third annular groove 1003, and the inner wall of the second connecting member 802 is provided with a clamping protrusion 806 that is clamped into the third annular groove 1003. There are two third connecting members 1001 and they are arranged oppositely on both sides of the second air duct 102. Considering that the part of the second air duct 102 that is not supported by the third connecting member 1001 may be deformed and fall off, the clamping protrusion 806 of the second connecting member 802 is clamped into the third annular groove 1003 to prevent the second air duct 102 from being separated from the second connecting member 802, which is also conducive to preventing air leakage; it can be understood that the clamping protrusion 806 is staggered with the third connecting member 1001, and the clamping protrusion 806 can be a continuous long strip or a plurality of protrusions arranged in a row.

[0086] See also Fig.11 and Fig.12 As shown, in some embodiments, the third connecting member 1001 is composed of a first fastening member 1005 and a second fastening member 1006, one end of the first fastening member 1005 is provided with a snap-in hole 1201, the second fastening member 1006 is provided with a plug-in block 1202 inserted into the snap-in hole 1201, and a slot 1002 is formed between the first fastening member 1005 and the second fastening member 1006. The third connecting member 1001 is a split structure. In the assembly of the air duct assembly 100, the end of the second air duct 102 is first placed on the first fastening member 1005 at the position corresponding to the slot 1002, and then the buckle 807 of the second fastening member 1006 is inserted into the fastening hole 1201 of the first fastening member 1005, and the first fastening member 1005 and the second fastening member 1006 are fixed as a whole, thereby clamping the second air duct 102, and the third connecting member 1001 is assembled with the second air duct 102, and then the third connecting member 1001 is installed on the second connecting member 802. The third connecting member 1001 with a split structure is easy to process and shape, simplifies the mold structure, and reduces the investment cost.

[0087] Considering that when assembling the first fastener 1005 and the second fastener 1006, it is difficult to align the position of the plug-in block 1202 when inserting it into the clamping hole 1201, a positioning structure is added, which is: the positioning groove 1203 set in the second fastener 1006 and the positioning plug plate 1204 set in the first fastener 1005. When assembling the third connector 1001, the positioning plug plate 1204 is first inserted into the positioning groove 1203 to achieve positioning, ensure that the plug-in block 1202 is aligned with the clamping hole 1201, and facilitate the insertion of the plug-in block 1202 into the clamping hole 1201 to complete the assembly. In addition, the positioning groove 1203 is set on the ridge of the second fastener 1006, and the length of the ridge is consistent with the slot 1002. When the end of the second air duct 102 is inserted into the slot 1002, the end of the second air duct 102 can abut against the ridge to limit the position of the second air duct 102, which is more convenient to operate.

[0088] See also Fig.10 As shown, in some embodiments, the second connecting member 802 is provided with a fastener 1007, which is a screw, and the second connecting member 802 is provided with a third through hole 1004 that matches the screw, and the third connecting member 1001 is provided with a mounting post 1205, and the mounting post 1205 is provided with a threaded hole that matches the screw. During assembly, the screw is passed through the third through hole 1004, and then the screw is tightened in the threaded hole, so that the second connecting member 802 and the third connecting member 1001 are fixed. Of course, the fastener 1007 can also be a self-tapping screw, and the mounting post 1205 can be provided with a countersunk hole that matches the self-tapping screw, without the need to process the thread, simplifying the structure and reducing the cost. It is understandable that the fastener 1007 can also be a rivet, a latch, etc., which can also achieve the purpose of fixing the second connecting member 802 and the third connecting member 1001 as one.

[0089] See also Fig.12 As shown, in some embodiments, the third connecting member 1001 is provided with two mounting holes 1206 penetrating the slot 1002, and fasteners (not shown in the figure) are provided in the mounting holes 1206, and the two mounting holes 1206 are distributed on both sides of the mounting column 1205. Since the mounting holes 1206 penetrate the slot 1002, the fasteners also penetrate the second air duct 102, and the third connecting member 1001 and the second air duct 102 are fixed as a whole by the fasteners, further preventing the second air duct 102 from coming out of the slot 1002, improving the reliability of use, and the two fasteners provide more fixing points for the second air duct 102, and can also reduce the shaking of the second air duct 102 in the exhaust. It can be understood that the fasteners can be bolts, rivets, latches, etc., depending on actual needs.

[0090] See also Fig.13 and Fig.14As shown, in some embodiments, the third connecting member 1001 is a single component formed in one piece, and the third connecting member 1001 includes a first bent plate 1301, a second bent plate 1302 and an elastic plate 1303. A slot 1002 is formed between the first bent plate 1301 and the second bent plate 1302. The first bent plate 1301 and the second bent plate 1302 are connected by the elastic plate 1303. By utilizing the elasticity of the elastic plate 1303, the first bent plate 1301 and the second bent plate 1302 can be pulled to expand the slot 1002, which is convenient for inserting the end of the second air duct 102 into the slot 1002, and can provide a certain pre-tightening clamping force to prompt the third connecting member 1001 to clamp the end of the second air duct 102, so as to facilitate the subsequent installation of the third connecting member 1001 on the second connecting member 802, thereby improving the working efficiency. The third connecting member 1001 is a single component formed in one piece, and is injection molded at one time, so the processing cost is low, and the product has high consistency and high precision.

[0091] refer to Fig.15 A mobile air conditioner 1500 according to an embodiment of the present invention is described, and the air duct assembly 100 of the above embodiment is applied.

[0092] See also Fig.15 As shown, the mobile air conditioner 1500 of the embodiment of the present invention includes an air conditioner body 1501 and an air duct assembly 100, wherein a condenser and an exhaust assembly are arranged in the air conditioner body 1501, and the condenser and the exhaust assembly are installed in the air inlet chamber, and the air inlet of the air inlet chamber is connected to the second air duct 102. During operation, outdoor air enters the air inlet chamber through the second air duct 202 and exchanges heat with the condenser, and the exhaust assembly discharges the heat-exchanged air to the outside through the first air duct 201, thereby realizing the outdoor heat exchange process of the mobile air conditioner 1500. The accompanying drawings do not show the structure of the condenser and the exhaust assembly, and the specific structure of the air conditioner body 1501 is easily accessible to ordinary technicians in this field, and will not be repeated.

[0093] The mobile air conditioner 1500 adopts a tube-in-tube structure for air intake and exhaust, and uses an anti-deviation structure 203 to position the first air duct 101 and the second air duct 102, so that the relative position between the first air duct 101 and the second air duct 102 is fixed, which can prevent the first air duct 101 from moving inside the second air duct 102, effectively ensure the smoothness of ventilation of the first air duct 201 and the second air duct 202, and is conducive to noise reduction, improving the stability and reliability of the tube-in-tube structure, and making the mobile air conditioner 1500 run more stably.

[0094] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The air duct assembly is characterized in that: include: First air duct; Second air duct; An air duct joint, the air duct joint being connected to the ends of the first air duct and the second air duct respectively, so that the second air duct is sleeved on the outside of the first air duct, and a first air duct is formed in the first air duct and a second air duct is formed between the first air duct and the second air duct; an anti-deflection structure, the anti-deflection structure is located in the second air duct, the anti-deflection structure includes a limiting portion sleeved on the outside of the first air duct, the limiting portion extends toward the second air duct and is formed with a supporting portion abutting against the inner wall of the second air duct; Wherein, the air duct joint includes a first connecting member connected to the first air duct and a second connecting member connected to the second air duct, the first connecting member is provided with a first through hole communicating with the first air duct, and the second connecting member is provided with a second through hole communicating with the second air duct; the air duct joint also includes a third connecting member, the third connecting member is provided with a slot, the end of the second air duct is fixed to the slot, and the third connecting member is fixedly connected to the second connecting member; a first annular groove is provided on the outer side of the first air duct, and the first annular groove is used to accommodate at least part of the limiting portion.

2. The air duct assembly according to claim 1, characterized in that: The limiting portion includes a first clamp sleeved on the outside of the first air duct and a fastener for locking the first clamp, and the first clamp is provided with a convex edge matched with the first annular groove.

3. The air duct assembly according to claim 2, characterized in that: The support portion includes a first support rod and a second support rod, and the first support rod and the second support rod are symmetrically arranged on the outer side of the first clamp.

4. The air duct assembly according to claim 1, characterized in that: The limiting portion and the supporting portion are combined into an elastic ring.

5. The air duct assembly according to claim 1, characterized in that: The first connecting member is eccentrically disposed on the inner side of the second connecting member.

6. The air duct assembly according to claim 1 or 5, characterized in that: The second connecting member includes a second clamp and a fastener for locking the second clamp, the inner wall of the second clamp is provided with a clamping protrusion, and the outer side of the second air duct is provided with a third annular groove that cooperates with the clamping protrusion.

7. The air duct assembly according to claim 1, characterized in that: The slot has a first side wall and a second side wall that are arranged opposite to each other, the first side wall is configured to be convex inwardly, and the second side wall is configured to be concave outwardly.

8. The air duct assembly according to claim 7, characterized in that: A third annular groove is disposed at the end of the second air duct, the third annular groove matches the shape of the first side wall, and a clamping protrusion that is clamped into the third annular groove is disposed on the inner wall of the second connecting member.

9. The air duct assembly according to claim 1, characterized in that: The third connecting member includes a first bent plate, a second bent plate and an elastic plate. The slot is formed between the first bent plate and the second bent plate. The first bent plate and the second bent plate are connected via the elastic plate.

10. The air duct assembly according to claim 1, characterized in that: The third connecting member includes a first buckle member and a second buckle member, one end of the first buckle member is provided with a clamping hole, the second buckle member is provided with a plug-in block inserted into the clamping hole, and the slot is formed between the first buckle member and the second buckle member.

11. The air duct assembly according to claim 1, characterized in that: The third connecting member is provided with a mounting hole penetrating the slot, and a fastener penetrating the second air duct is connected to the mounting hole.

12. A mobile air conditioner, characterized in that: The invention comprises the air duct assembly according to any one of claims 1 to 11.

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