CN214199096U

CN214199096U - Machine and air conditioner in tuber pipe connecting pipe, new trend subassembly, air conditioning

Info

Publication number: CN214199096U
Application number: CN202022700786.1U
Authority: CN
Inventors: 翟富兴; 刘奇伟; 黄俊豪; 赵紫生; 姜凤华
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-09-14
Anticipated expiration: 2030-11-19

Abstract

The application provides an air pipe connecting pipe, a fresh air component, an air-conditioning indoor unit and an air conditioner, wherein the air pipe connecting pipe comprises a pipe body and a connecting component, the pipe body comprises two pipe body sections which are connected with each other along the length direction and are arranged in a bending mode, and the lengths of the two pipe body sections are different; the pipe body all is provided with the same structure along the relative both ends of air current flow direction coupling assembling. The air pipe connecting pipe of the embodiment of the application can be installed normally or installed reversely in an adaptive manner, so that the distance between the new pipe body and the air duct connector is different, different installation scenes that the new pipe body penetrates out from the left side or the right side are met, namely, the same air pipe connecting pipe can be used for taking different installation modes of the new pipe body into consideration, an indoor air conditioner only needs to be provided with one air pipe connecting pipe for a fresh air device, the new pipe body is compatible to be discharged from the left and the right, the space utilization maximization is realized, and the number of joints is simplified.

Description

Machine and air conditioner in tuber pipe connecting pipe, new trend subassembly, air conditioning

Technical Field

The application relates to the technical field of air conditioners, in particular to an indoor unit of an air pipe connecting pipe, a fresh air assembly, an air conditioner and an air conditioner.

Background

Traditional air conditioner carries out circulation heating or refrigeration with indoor air to reach the effect to indoor intensification or cooling, traditional air conditioner promptly can't introduce indoor with outdoor new trend, and air conditioner operating time is longer slightly, and is indoor can be vexed relatively.

With the continuous development of the air conditioning industry, in the related technology, an air conditioner with a fresh air function appears, and fresh air outside is introduced into a room through a fresh air pipeline, so that the indoor air quality is improved. Air conditioner with new trend function, new trend module often set up the tip at the air conditioner, and according to user's installation scene demand, the new trend pipe may need the air conditioner left side to wear out, also may need wear out from the right side of air conditioner. Because the users facing the air conditioners sold in the market are uncertain, in order to meet the requirements of different installation scenes, a fresh air pipe transition joint needs to be configured for each possible installation scene aiming at each air conditioner, so that the fresh air connecting pipe is complicated in type, and errors are easy to occur during installation.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present application are expected to provide an air duct connecting pipe, a fresh air assembly, an air conditioner indoor unit and an air conditioner with better compatibility.

In order to achieve the above object, an embodiment of the present application provides an air duct connecting pipe, including a pipe body and a connecting assembly, where the pipe body includes two pipe body sections that are connected to each other along a length direction and are bent, and the lengths of the two pipe body sections are different; the pipe body all is provided with the same structure along the relative both ends of air current flow direction coupling assembling.

In some embodiments, the two tube body sections have a length difference of 5mm to 20 mm.

In some embodiments, the cross-sectional shape of the tubular body section is circular and the internal diameter of the tubular body section is from 20mm to 120 mm; and/or the included angle between the two pipe body sections is 80-100 degrees.

In some embodiments, one of the tubular body segments has a length of 67mm to 87 mm; the length of the other tube body section is 80 mm-100 mm.

In some embodiments, the air duct connecting pipe includes a flange protruding from a circumferential surface of the pipe body section, and the flange has an abutting surface surrounding a circumference of the pipe body section, the abutting surface facing a side of an end surface of the pipe body section.

In some embodiments, the distance between the end surface of the tubular body segment and the corresponding abutment surface is between 8mm and 15 mm.

In some embodiments, a surface of the pipe body section between the end surface of the pipe body section and the corresponding abutment surface is provided with a guide bead extending in an axial direction of the pipe body section; along the radial direction of the pipe body section, the outer surface of the guide convex rib does not exceed the inner side edge of the abutting surface.

In some embodiments, the connection assembly is a quick connect structure; the quick connection structure comprises a first elastic buckle protruding out of the pipe body section and the circumferential surface, and the first elastic buckle is provided with a clamping groove or a barb; or the quick connection structure comprises a clamping protrusion protruding out of the pipe body section and the circumferential surface; or, the quick-connection structure includes a threaded cap slidably sleeved on the pipe body section, the threaded cap is located on a side of the flange departing from the abutting surface, when the threaded cap is in a connection state, an axial end of the threaded cap abuts against an end of the flange departing from the abutting surface, and the threaded cap is arranged around the flange and spaced from a circumferential surface of the flange.

The embodiment of the application provides a fresh air assembly, which comprises a fresh air device, a fresh air pipe and any one of the air pipe connecting pipes, wherein the fresh air device is provided with an air duct interface; the air pipe connecting pipe is connected between the fresh air pipe and the air duct connector, the fresh air pipe or the air duct connector can be connected with any one end of the air pipe connecting pipe, one pipe body section extends along the front-back direction of the fresh air device, and the other pipe body section extends along the left-right direction of the fresh air device.

In some embodiments, the connection assembly is a quick connect structure;

the quick connection structure comprises a first elastic buckle protruding out of the tube body section and the circumferential surface, the fresh air pipe and the air duct joint are provided with clamping structures with the same structure, and the clamping structures are buckled with the first elastic buckle; alternatively, the first and second electrodes may be,

the quick connection structure comprises a clamping protrusion protruding out of the tube body section and the circumferential surface, the fresh air pipe and the air duct interface are both provided with second elastic buckles with the same structure, and the clamping protrusion is buckled with the second elastic buckles; alternatively, the first and second electrodes may be,

the quick connection structure comprises a threaded cover which is sleeved on the pipe body section in a sliding mode, the fresh air pipe and the air duct interface are provided with external threads, and the threaded cover is matched with the external threads.

The embodiment of the application further provides an air-conditioning indoor unit, a chassis and any fresh air assembly, wherein the fresh air device is arranged at one end of the chassis, and the fresh air pipe can be selectively penetrated out from the left side or the right side of the air-conditioning indoor unit.

In some embodiments, the fresh air duct extends out of the left side of the indoor unit of the air conditioner, and the length of the pipe body section connected to the fresh air duct is greater than the length of the pipe body section connected to the duct interface.

In some embodiments, the fresh air duct extends out from the right side of the indoor unit of the air conditioner, and the length of the pipe body section connected to the air duct interface is greater than the length of the pipe body section connected to the fresh air duct.

The embodiment of the application also provides an air conditioner, an air conditioner outdoor unit and any one of the air conditioner indoor units, wherein the air conditioner indoor unit is connected with the air conditioner outdoor unit through a refrigerant pipe.

Use tuber pipe connecting pipe application and air conditioning indoor set as the example, the tuber pipe connecting pipe of this application embodiment can be installed or adorn in the wrong direction with adaptability to satisfy the different installation scenes that the new tuber pipe was worn out from left side or right side, that is to say, same tuber pipe connecting pipe, can compromise the different mounting means of new tuber pipe, air conditioning indoor set only need for new trend device configuration an tuber pipe connecting pipe can, compatible new tuber pipe goes out to the left and goes out to the right, realizes the space utilization maximize, the fine simplification of joint quantity.

Drawings

Fig. 1 is a schematic structural diagram of an air duct connecting pipe according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present application, in which a fresh air duct is led out from a right side of the indoor unit of the air conditioner;

FIG. 4 is a schematic view of FIG. 3 with a portion of the structure omitted;

FIG. 5 is a schematic structural diagram of the fresh air assembly shown in FIG. 4, in which a part of the fresh air device and the fresh air duct is omitted;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

fig. 7 is a schematic structural view of an indoor unit of an air conditioner according to another embodiment of the present disclosure, in which a fresh air duct exits from a left side of the indoor unit of the air conditioner;

FIG. 8 is a schematic view of FIG. 7 with a portion of the structure omitted;

FIG. 9 is a schematic structural diagram of the fresh air device in FIG. 8, in which a part of the fresh air device and the fresh air duct is omitted;

FIG. 10 is a schematic view of the structure of FIG. 9 from another perspective;

fig. 11 is a partially enlarged schematic view of a portion a of fig. 10.

Description of the reference numerals

An air pipe connecting pipe 1; an air passing cavity 1 a; a tube body 11; a

tubular body section

11a, 11 b; a guide rib 111; a flange 121; an abutment surface 121 b; a first elastic buckle 122; barbs 122 a; the ribs 123; the annular space 121 a; a chassis 2; a fresh air device 3; an air duct interface 3 a; a first lug 31; the fastening grooves 31 a; fresh air duct 4

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, the "front", "rear", "left", "right" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 3 and 4, and the "top", "bottom" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 6. Wherein, the directions of "front", "back", "left" and "right" in fig. 3 are the same as those of "front", "back", "left" and "right" in fig. 4. The "front" and "rear" directions in fig. 3 are the same as those in fig. 6.

It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.

The embodiment of the present application provides an air duct connecting pipe 1, please refer to fig. 1 and 2, the air duct connecting pipe 1 includes a pipe body 11 and a connecting assembly, an inner space of the pipe body 11 is an air passing cavity 1a, and an air flow enters the air passing cavity 1a in the pipe body 11 from one end of the pipe body 11 and is discharged from the other end of the pipe body 11. The pipe body 11 includes two

pipe body segments

11a and 11b connected to each other in a length direction and bent, and specifically, the internal spaces of the two

pipe body segments

11a and 11b are both the air passing cavity 1 a.

The opposite ends of the pipe body 11 along the airflow flowing direction are provided with connecting components with the same structure, that is, the external connecting structures of the air pipe connecting pipes 1 are the same.

The application of the air pipe connecting pipe 1 is not limited. In the embodiment of the present application, the air duct connecting pipe 1 is used for the fresh air component.

Referring to fig. 5 and 9, an embodiment of the present application provides a fresh air assembly, which includes a fresh air device 3, a fresh air duct 4, and an air duct connecting pipe 1 according to any embodiment of the present application, where the fresh air device 3 has an air duct connector 3a, the air duct connecting pipe 1 is connected between the fresh air duct 4 and the air duct connector 3a, one of the

duct body sections

11a and 11b extends along a front-rear direction of the fresh air device 3, and the other

duct body section

11a and 11b extends along a left-right direction of the fresh air device 3. The fresh air duct 4 can be selectively extended from the left side or the right side of the fresh air device 3 according to different installation scene requirements. The fresh air pipe 4 or the air duct joint 3a can be connected with any end of the air pipe connecting pipe 1.

The fresh air pipe 4 can introduce outdoor fresh air into the fresh air device 3 and further into the room. Fresh air duct 4 also can regard as the delivery pipe of indoor dirty air, and fresh air device 3 discharges indoor dirty air into fresh air duct 4 promptly, and the rethread fresh air duct 4 is discharged outdoors.

The specific scene of the application of the fresh air component in the embodiment of the application is not limited, and in the embodiment of the application, the fresh air component is applied to an indoor unit of an air conditioner as an example.

Referring to fig. 3, 4, 7 and 8, an embodiment of the present application provides an indoor unit of an air conditioner, including a chassis 2 and a fresh air module according to any embodiment of the present application, wherein a fresh air device 3 is disposed at one end of the chassis 2, and a fresh air duct 4 can selectively pass through the left side or the right side of the indoor unit of the air conditioner. In the embodiment of the present application, the left-right direction of the indoor unit of the air conditioner is the same as the left-right direction of the fresh air device 3.

Exemplarily, the air-conditioning indoor unit further comprises a heat exchanger and a cross-flow wind wheel, the chassis 2 is provided with a volute, and the cross-flow wind wheel is rotatably arranged in the volute. The heat exchanger is arranged above the air inlet of the volute. The air after heat exchange by the heat exchanger enters the volute under the action of the cross-flow wind wheel and is discharged to the indoor from the air outlet of the volute, so that the indoor heating or refrigerating effect is realized.

It should be noted that, when the fresh air duct 4 needs to penetrate out from the left side of the indoor unit of the air conditioner, along the front-back direction of the indoor unit of the air conditioner, the fresh air duct 4 is a fresh air module as much as possible so as to avoid the structures of the refrigerant pipe, the water pipe and the like of the indoor unit of the air conditioner, that is, the size of the air duct connecting pipe 1 along the front-back direction of the indoor unit of the air conditioner needs to be relatively small. When the fresh air duct 4 is extended out from the right side of the indoor unit of the air conditioner, in order to maximize the utilization of the back structure of the air conditioner, the size in the front-rear direction of the indoor unit of the air conditioner, that is, the size of the duct connecting pipe 1 in the front-rear direction of the indoor unit of the air conditioner, is relatively large. That is, along the front-back direction of the indoor unit of the air conditioner, the size of the duct connecting pipe 1 corresponding to the left outlet of the fresh air duct 4 is smaller than the size of the duct connecting pipe 1 corresponding to the right outlet of the fresh air duct 4.

It should be noted that, the fresh air duct 4 or the air duct joint 3a can be connected with any end of the air duct connecting pipe 1, which includes the following two ways: the first end of the air pipe connecting pipe 1 is connected with the fresh air pipe 4, and the second end of the air pipe connecting pipe 1 is connected with the air duct connector 3 a; air pipe connecting pipe 1 also can be exchanged the installation, and the first end and the wind channel interface 3a of air pipe connecting pipe 1 are connected, and the second end and the new tuber pipe 4 of air pipe connecting pipe 1 are connected.

The air pipe connecting pipe 1 of the embodiment of the application, air pipe connecting pipe 1 can be installed or installed in an opposite direction with adaptability, so that the distance between fresh air pipe 4 and air duct connector 3a is different, so as to satisfy the different installation scenes that fresh air pipe 4 wears out from left side or right side, that is to say, same air pipe connecting pipe 1, can compromise the different mounting means of fresh air pipe 4, the indoor unit of air conditioner only need for fresh air device 3 configuration air pipe connecting pipe 1 can, compatible fresh air pipe 4 goes out from left to right, realize the space utilization maximize, the number of joints is simplified.

Specifically, referring to fig. 8 and 9, when the fresh air duct 4 passes out of the left side of the indoor unit of the air conditioner, the length of the tube section 11a connected to the fresh air duct 4 is greater than the length of the tube section 11b connected to the air duct interface 3a, so that the distance d1 between the fresh air duct 4 and the air duct interface 3a is short.

Referring to fig. 5 and 6, when the fresh air duct 4 extends out from the right side of the indoor unit of the air conditioner, the length of the tube body segment 11a connected to the air duct interface 3a is greater than the length of the tube body segment 11b connected to the fresh air duct 4, so that the distance d2 between the fresh air duct 4 and the air duct interface 3a is longer. Wherein d2 is greater than d 1.

In one embodiment, the difference in length between the two

tube body sections

11a, 11b is between 5mm and 20 mm. Specifically, referring to fig. 2, the length of the short one tube body segment 11b is L1, and the length of the long one tube body segment 11a is L2, and L2-L1 are 5mm to 20 mm. The size range is suitable for assembling the fresh air pipe 4 of the indoor unit of the air conditioner.

The angle between the two

tube body sections

11a, 11b is 80 ° -100 °, for example 80 °, 85 °, 90 °, 100 °. Illustratively, the two

duct body sections

11a, 11b are arranged vertically or near vertically, facilitating the fresh air duct 4 to exit the duct in parallel from the left or right side of the air conditioning indoor unit.

It should be noted that the cross-sectional shape of the

pipe body sections

11a, 11b is not limited, and may be, for example, a circle, a polygon, an ellipse, etc., and is not limited herein as long as the cross-sectional area of the

pipe body sections

11a, 11b meets the airflow flow requirement.

Illustratively, in one embodiment, the cross-sectional shape of the

tubular body segment

11a, 11b is circular, and the inner diameter of the

tubular body segment

11a, 11b is 20mm to 120mm, e.g., 20mm, 25mm, 28mm, 30mm, 35mm, 38mm, 40mm, 45mm, 48mm, 50mm, 55mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, etc. Illustratively, the inner diameter of the

tubular body segments

11a, 11b is 20mm to 55 mm. The

pipe body sections

11a and 11b within the inner diameter range can meet the requirement of fresh air flow of the indoor unit of the air conditioner and cannot occupy too large installation space. The inner diameters of the

pipe body sections

11a and 11b are related to the gas flow cross-sectional areas of the

pipe body sections

11a and 11b, and assuming that the inner diameters of the

pipe body sections

11a and 11b are R, the gas flow cross-sectional areas S ═ pi × R²Wherein pi is a circumference ratio.

The length of each

tubular body section

11a, 11b may be of a suitable value to meet installation requirements. Illustratively, the relatively short tubular body segment 11b therein has a length of 67mm to 87mm, e.g. 67mm, 70mm, 73mm, 75mm, 77mm, 80mm, 82mm, 85mm, 87 mm. The relatively long pipe body section 11a has a length of 80mm to 100mm, for example, 80mm, 85mm, 90mm, 91mm, 92mm, 93mm, 95mm, 98mm, 100 mm. When the two

pipe body sections

11a and 11b have the above length ranges, the length difference between the two

pipe body sections

11a and 11b needs to be 5mm to 20 mm. For example, when the length of the relatively short tube body section 11b is 87mm, the relatively long tube body section 11a should be between 92mm and 100 mm.

Referring to fig. 1, the duct connecting pipe 1 includes a flange 121 protruding from a circumferential surface of the

pipe body section

11a, 11b, the flange 121 having an abutting surface 121b surrounding the circumferential direction of the

pipe body section

11a, 11b, the abutting surface 121b facing an end surface side of the

pipe body

11a, 11 b.

Taking the connection between the duct connecting pipe 1 and the fresh air duct 4 as an example, one end of the fresh air duct 4 is sleeved on one of the

duct body sections

11a and 11b, and the end surface of the fresh air duct 4 abuts against the abutting surface 121 b. So, can promote the reliability of being connected and the leakproofness of tuber pipe connecting pipe 1 and fresh air pipe 4.

It is understood that a sealing structure such as sponge and a sealing ring may be provided between the abutting surface 121b and the end surface of the fresh air duct 4 to improve the sealing reliability of the joint. In one embodiment, referring to fig. 2, the distance L3 between the end surface 11c of the

pipe body sections

11a and 11b and the corresponding abutting surface 121b is 8mm to 15 mm. Taking the connection between the tube body 11 and the fresh air duct 4 as an example, the sleeving length of the fresh air duct 4 on the

tube body sections

11a and 11b is 8 mm-15 mm, which can increase the contact area of the connection between the two and also can give consideration to the compact structure of the air duct connecting tube 1.

In one embodiment, the surface of the

pipe body sections

11a, 11b between the end surfaces 11c of the

pipe body sections

11a, 11b and the corresponding abutment surfaces 121b is provided with guide ribs 111, the guide ribs 111 extending in the axial direction of the

pipe body sections

11a, 11 b. The outer surface of the guide rib 111 does not exceed the inner edge of the abutment surface 121b in the radial direction of the

tubular body sections

11a, 11 b.

Taking the connection between the fresh air duct 4 and the air duct connecting pipe 1 in fig. 9 as an example, one end of the fresh air duct 4 along the axial direction of the pipe body section 11a is sleeved on the pipe body section 11a, that is, the inner diameter of the fresh air duct 4 is slightly larger than the outer diameter of the pipe body section 11 a; the inner wall of the fresh air duct 4 is in sliding contact with the guide convex rib 111, and the guide convex rib 111 at least partially makes up a radial gap between the fresh air duct 4 and the duct body section 11a, so that the fresh air duct 4 and the duct body section 11a are approximately coaxial; promote fresh air pipe 4 along the axial, so can make fresh air pipe 4's terminal surface and flange 121's butt face 121b quick, accurate counterpoint butt, need not to adjust the relative position between fresh air pipe 4's terminal surface and the butt face 121b repeatedly, promote assembly efficiency and reliability.

The specific shape of the guide rib 111 is not limited as long as it can guide the assembly of the fresh air duct 4 or the air duct connection 3 a.

The specific structure of the flange 121 is not limited. Illustratively, the flange 121 is substantially cylindrical and surrounds the pipe body section 11a in the circumferential direction, so that the weight of the air duct connecting pipe 1 can be reduced, the material used can be reduced, and the cost can be reduced. An annular space 121a is formed between the cylindrical flange 121 and the

pipe body sections

11a, 11b, and the coupling assembly further comprises a plurality of fins 123 disposed within the annular space 121a, the fins 123 being connected between the outer surface of the

pipe body sections

11a, 11b and the inner surface of the flange 121. The ribs 123 can reinforce the structural strength of the flange 121.

The concrete structure of the connecting assembly is not limited as long as the air pipe connecting pipe 1 can be conveniently connected with the fresh air pipe 4 or the air duct connector 3 a.

Illustratively, the connection assembly is a quick-connection structure to improve assembly efficiency. Wherein, the structure that connects soon is the structure that does not need specialized tool to assemble fast.

In an embodiment, the quick connection structure includes a first elastic buckle 122 protruding from the circumferential surface of the

pipe body sections

11a and 11b, and the first elastic buckle 122 has a slot or a barb, it is understood that the fresh air pipe 4 and the air duct interface 3 are both provided with a clamping structure matching with the first elastic buckle 122, and the clamping structure is fastened to the first elastic buckle 122. Specifically, take tuber pipe connecting pipe 1 and fresh air duct 4 to be connected as an example, in the assembling process, on the

pipe body section

11a, 11b was cup jointed to fresh air duct 4, elastic deformation can take place for first elastic buckle 122 in the assembling process, can be fast with the quick joint of joint structure on the fresh air duct 4 under elastic deformation's effect. When the fresh air pipe 4 needs to be disassembled, the first elastic buckle 122 is loosened, and the fresh air pipe 4 is pulled out.

It should be noted that in the embodiment where the flange 121 is provided, the first elastic catch 122 may be provided on the flange 121.

It can be understood that, in the embodiment where the first elastic buckle 122 has a clamping groove, the clamping structures on the fresh air duct 4 and the air duct interface 3 have barb structures capable of being elastically deformed, and the barb structures are clamped into the clamping groove.

In embodiments where the first resilient catch 122 has barbs, the first resilient catch 122 can catch on the catch structure.

The barbs of the first resilient latch 122 may be directed radially inward or radially outward.

For example, the first elastic buckle 122 has a barb 122a facing radially inward of the

pipe body sections

11a and 11b, the surfaces of the fresh air pipe 4 and the air duct interface 3a are both provided with buckling protrusions, and the buckling protrusions and the barb 122a are in buckling fit, so that the air pipe connecting pipe 1 and the fresh air pipe 4, and the air pipe connecting pipe 1 and the air duct interface 3a can be quickly assembled.

For another example, referring to fig. 11, a first fastening lug 31 is disposed on a circumferential surface of the air duct interface 3a, the first fastening lug 31 protrudes from the circumferential surface of the air duct interface 3a, and the first fastening lug 31 is disposed with a first fastening groove 31 a. The first elastic buckle 122 has a barb 122a facing radially outwards towards the

pipe body sections

11a, 11b, the first elastic buckle 122 is inserted into the first buckle groove 31a, and the barb 122a abuts against one side of the first buckle lug 31 facing away from the air duct transition joint 1. Specifically, during the process of inserting the first elastic catch 122 into the first fastening groove 31a, the first elastic catch 31 forces the first elastic catch 122 to elastically deform radially inward along the

pipe body sections

11a and 11b, and after the first elastic catch 122 is inserted into the first fastening groove 31a to a certain depth, the first elastic catch 122 at least partially recovers from elastic deformation radially outward along the

pipe body sections

11a and 11b under the action of its own elastic force, so that the barb 122a hooks the side of the first elastic catch 31 away from the air pipe connecting pipe 1. On the one hand, the first elastic buckle 122 is surrounded by the first buckle lug 31, and other structures are not easy to touch the first elastic buckle 122, so that the probability that the first elastic buckle 122 is separated from the first buckle lug 31 due to being touched is reduced, and on the other hand, the first elastic buckle 122 cannot move outwards along the radial direction of the

pipe body sections

11a and 11b, so that the probability that the first elastic buckle 122 is separated from the first buckle lug 31 is greatly reduced, and the connection reliability of the air duct transition joint 1 and the air duct interface 3a is improved.

Similarly, a second fastening lug with the same structure as the first fastening lug 31 is arranged on the fresh air pipe 4 to ensure the interchangeability of the two ends of the transition structure of the pipe body 11.

In another embodiment, the quick-connection structure includes a clamping protrusion protruding from the circumferential surface of the

pipe body sections

11a and 11b, the fresh air pipe 4 and the air duct joint 3a are both provided with a second elastic buckle with the same structure, and the clamping protrusion is fastened to the second elastic buckle. It is understood that the structure of the second elastic buckle may be the same as or different from the structure of the first elastic buckle 122, and is not limited herein.

In another embodiment, the quick-connect structure includes a screw cap slidably sleeved on the

pipe body sections

11a and 11b, and the screw cap is located on a side of the flange 121 away from the abutting surface 121b, i.e. the screw cap can move along the length direction of the

pipe body sections

11a and 11 b. When the screw cap is in the connection state, one axial end of the screw cap abuts against one end of the flange 121, which is away from the abutment surface 121b, and the screw cap is disposed around the flange 121 and spaced from the circumferential surface of the flange 121. Fresh air pipe 4 and wind channel interface 3a all are provided with the external screw thread, screw cap and external screw thread cooperation. Specifically, take tuber pipe connecting pipe 1 and fresh air pipe 4 to be connected as an example, in the assembling process, fresh air pipe 4 cup joints on this section of

pipe

11a, 11b, drives the screw cap afterwards and moves towards fresh air cap direction, rotates the screw cap gradually, on the screw cap screw in fresh air pipe 4's external screw thread gradually, fresh air pipe 4 and this section of

pipe

11a, 11b pass through screw cap quick connect.

The air duct connecting pipe 1 may be an integrally formed structure, for example, an integrally injection-molded plastic part. The air duct connecting pipe 1 can also be a split structure and fixedly connected together, for example, by welding, bonding, etc.

The material of the air pipe connecting pipe 1 is not limited, and can be metal, plastic, composite material and the like. Under the condition that can bear rated wind pressure, air pipe connecting pipe 1 can adopt light, cheap working of plastics as far as possible, on the one hand is convenient for the lightweight design of air conditioning indoor set, and on the other hand, also can reduce cost, promotes air conditioning indoor set's market competition.

The embodiment of the application also provides an air conditioner, which comprises an air conditioner outdoor unit and the air conditioner indoor unit in any embodiment of the application, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air duct connecting pipe, comprising:

the pipe comprises a pipe body (11), wherein the pipe body (11) comprises two pipe body sections (11a, 11b) which are connected with each other in the length direction and are arranged in a bending mode, and the lengths of the two pipe body sections (11a, 11b) are different;

the connecting component is arranged at the two opposite ends of the pipe body (11) in the airflow flowing direction and has the same structure.

2. A ductwork connecting tube according to claim 1, characterised in that the difference in length between the two tube body sections (11a, 11b) is 5-20 mm.

3. A blast connection pipe according to claim 1, wherein said pipe body section (11a, 11b) has a circular cross-sectional shape, and said pipe body section (11a, 11b) has an inner diameter of 20mm to 120 mm; and/or the angle between the two tube body sections (11a, 11b) is between 80 ° and 100 °.

4. A ductwork connecting tube according to claim 1, characterised in that the length of one of said tubular body sections (11b) is 67-87 mm; the length of the other tube body section (11a) is 80mm to 100 mm.

5. An air hose coupling according to any one of claims 1-4, characterized in that said air hose coupling comprises a flange (121) projecting from a circumferential surface of said body segment (11a, 11b), said flange (121) having an abutment surface (121b) surrounding the circumference of said body segment (11a, 11b), said abutment surface (121b) facing towards an end surface side of said body segment (11a, 11 b).

6. A duct connecting pipe according to claim 5, characterized in that the distance between the end surface of the duct body section (11a, 11b) and the corresponding abutment surface (121b) is 8-15 mm.

7. A duct connecting pipe according to claim 5, characterized in that the surface of the pipe body section (11a, 11b) between the end surface of the pipe body section (11a, 11b) and the corresponding abutment surface (121b) is provided with a guide bead (111), the guide bead (111) extending in the axial direction of the pipe body section (11a, 11 b); the outer surface of the guide rib (111) does not exceed the inner edge of the abutment surface (121b) in the radial direction of the tubular body section (11a, 11 b).

8. The air hose connecting pipe according to claim 5, wherein the connecting assembly is a quick-connect structure;

the quick connection structure comprises a first elastic buckle (122) protruding out of the circumferential surface of the pipe body section (11a, 11b), and the first elastic buckle (122) is provided with a clamping groove or a barb; alternatively, the first and second electrodes may be,

the quick connection structure comprises a clamping protrusion protruding out of the circumferential surface of the pipe body section (11a, 11 b); alternatively, the first and second electrodes may be,

the quick connection structure comprises a threaded cover which is slidably sleeved on the pipe body sections (11a and 11b), the threaded cover is positioned on one side, deviating from the abutting surface, of the flange, when the threaded cover is in a connection state, one axial end of the threaded cover is abutted to one end, deviating from the abutting surface, of the flange, and the threaded cover is arranged around the flange and is arranged at intervals with the circumferential surface of the flange.

9. A fresh air assembly, characterized by comprising a fresh air device (3), a fresh air pipe (4) and an air pipe connecting pipe according to any one of claims 1 to 8, wherein the fresh air device (3) is provided with an air duct interface (3 a);

the air pipe connecting pipe is connected between the fresh air pipe (4) and the air duct connector (3a), the fresh air pipe (4) or the air duct connector (3a) can be connected with any one end of the air pipe connecting pipe, one pipe body section (11a and 11b) extends along the front-back direction of the fresh air device, and the other pipe body section (11a and 11b) extends along the left-right direction of the fresh air device.

10. The fresh air assembly as claimed in claim 9, wherein the connection assembly is a quick-connect structure;

the quick connection structure comprises a first elastic buckle (122) protruding out of the circumferential surface of the pipe body sections (11a, 11b), the fresh air pipe (4) and the air duct interface (3a) are both provided with clamping structures with the same structure, and the clamping structures are buckled with the first elastic buckle (122); alternatively, the first and second electrodes may be,

the quick connection structure comprises a clamping protrusion protruding out of the circumferential surface of the pipe body sections (11a, 11b), the fresh air pipe (4) and the air duct interface (3a) are both provided with second elastic buckles with the same structure, and the clamping protrusion is buckled with the second elastic buckles; alternatively, the first and second electrodes may be,

the quick connection structure comprises a threaded cover which is slidably sleeved on the pipe body sections (11a and 11b), the fresh air pipe (4) and the air duct interface (3a) are both provided with external threads, and the threaded cover is matched with the external threads.

11. An indoor unit of an air conditioner, comprising a chassis and the fresh air assembly of claim 10, wherein the fresh air device (3) is disposed at one end of the chassis (2), and the fresh air duct (4) can selectively penetrate out from the left side or the right side of the indoor unit of the air conditioner.

12. Air conditioning indoor unit according to claim 11, wherein the fresh air duct (4) is extended from the left side of the air conditioning indoor unit, and the length of the duct body section (11a) connected to the fresh air duct (4) is longer than the length of the duct body section (11b) connected to the duct junction (3 a).

13. Air conditioning indoor unit according to claim 11, wherein the fresh air duct (4) is extended from the right side of the air conditioning indoor unit, and the length of the duct body section (11a) connected to the duct interface (3a) is longer than the length of the duct body section (11b) connected to the fresh air duct (4).

14. An air conditioner comprising an outdoor unit and the indoor unit of claims 11 to 13, wherein the indoor unit and the outdoor unit are connected by refrigerant pipes.