CN212930242U

CN212930242U - Machine and air conditioner in new trend module, air conditioning

Info

Publication number: CN212930242U
Application number: CN202021716706.5U
Authority: CN
Inventors: 龙灿
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-09
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a fresh air module, an air conditioner indoor unit and an air conditioner, wherein, the fresh air module comprises a shell and a fresh air pipe joint, the shell is provided with a fresh air channel, the shell is provided with a fresh air port communicated with the fresh air channel, the shell is also provided with a connecting part spaced from the fresh air port, the connecting part is provided with an inserting groove, and the side wall of the connecting part is provided with an opening communicated with the inserting groove; the fresh air pipe joint comprises a joint main body, one end of the joint main body is connected with the shell, the other end of the joint main body is used for being communicated with the fresh air pipe, and the outer peripheral wall of the joint main body is provided with an inserting part; when one end of the fresh air pipe joint is in plug fit with the fresh air opening, the plug part is inserted into the plug groove and is clamped with the connecting part, and at least part of the plug part is exposed from the opening. The utility model discloses technical scheme is convenient for the dismouting of new trend coupling and casing.

Description

Machine and air conditioner in new trend module, air conditioning

Technical Field

The utility model relates to a new trend technical field, in particular to machine and air conditioner in new trend module, air conditioning.

Background

In recent years, with the rapid development of economy, the urbanization process is accelerated, and the indoor air quality is receiving much attention. The fresh air module with the fresh air function is particularly important, and in the related art, the fresh air pipe joint is inserted into the shell, so that the disassembly is difficult, and the disassembly and the assembly between the fresh air pipe joint and the shell are not facilitated by other tools.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machine and air conditioner in new trend module, air conditioning, the dismouting that aims at being convenient for new trend coupling and casing.

In order to achieve the above object, the fresh air module provided by the present invention comprises a housing and a fresh air pipe joint, wherein the housing has a fresh air channel, the housing is provided with a fresh air port communicated with the fresh air channel, the housing is further provided with a connecting portion spaced from the fresh air port, the connecting portion is provided with an insertion groove, and the side wall of the connecting portion is provided with an opening communicated with the insertion groove; the fresh air pipe joint comprises a joint main body, one end of the joint main body is connected with the shell, the other end of the joint main body is used for being communicated with the fresh air pipe, and the outer peripheral wall of the joint main body is provided with an inserting part; when one end of the fresh air pipe joint is in plug fit with the fresh air opening, the plug part is inserted into the plug groove and is clamped with the connecting part, and at least part of the plug part is exposed from the opening.

In an embodiment, the joint main body has a first end connected to the housing and a second end opposite to the first end, the insertion portion includes an insertion plate and a protrusion protruding from an outer wall of the insertion plate, the insertion plate extends in a direction from the second end toward the first end, and an elastic gap is formed between the insertion plate and the joint main body.

In one embodiment, the convex buckle is positioned in the middle of the insert plate.

In an embodiment, the distance between the insert plate and the joint body gradually increases in a direction from the second end to the first end.

In one embodiment, the width of the insert plate gradually decreases in a direction from the second end to the first end.

In one embodiment, the joint main body comprises a first main body part and a second main body part arranged on the first main body part, and the outer diameter of the first main body part is larger than that of the second main body part; the periphery wall of first main part is equipped with the picture peg, the second main part is used for inserting the fresh air inlet, the internal diameter of fresh air inlet is less than the external diameter of first main part.

In an embodiment, the connecting portion includes a cross beam and two ribs, the two ribs are arranged on the housing at intervals, the cross beam connects the two ribs, the housing and the connecting portion enclose a notch forming the insertion groove, and one end of the connecting portion, which is far away from the fresh air opening, is provided with the opening.

In one embodiment, the number of the insertion parts is multiple, and the multiple insertion parts are arranged at intervals along the circumferential direction of the joint main body.

In one embodiment, the number of the insertion parts is two, and the two insertion parts are arranged oppositely.

In one embodiment, the inner wall surface of the joint main body is provided with a plurality of clamping ribs which are arranged at intervals in the axial direction of the joint main body, and the clamping ribs are used for being clamped with the fresh air pipe.

The utility model also provides an air-conditioning indoor unit, which comprises a casing and a fresh air module, wherein the fresh air module is arranged on the casing; the fresh air module comprises a shell and a fresh air pipe joint, the shell is provided with a fresh air channel, a fresh air port communicated with the fresh air channel is formed in the shell, a connecting part spaced from the fresh air port is further arranged on the shell, an inserting groove is formed in the connecting part, and an opening communicated with the inserting groove is formed in the side wall of the connecting part; the fresh air pipe joint comprises a joint main body, one end of the joint main body is connected with the shell, the other end of the joint main body is used for being communicated with the fresh air pipe, and the outer peripheral wall of the joint main body is provided with an inserting part; when one end of the fresh air pipe joint is in plug fit with the fresh air opening, the plug part is inserted into the plug groove and is clamped with the connecting part, and at least part of the plug part is exposed from the opening.

The utility model also provides an air conditioner, the air conditioner comprises an air conditioner outdoor unit and an air conditioner indoor unit, the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe; the air-conditioning indoor unit comprises a shell and a fresh air module, wherein the fresh air module is arranged on the shell; the fresh air module comprises a shell and a fresh air pipe joint, the shell is provided with a fresh air channel, a fresh air port communicated with the fresh air channel is formed in the shell, a connecting part spaced from the fresh air port is further arranged on the shell, an inserting groove is formed in the connecting part, and an opening communicated with the inserting groove is formed in the side wall of the connecting part; the fresh air pipe joint comprises a joint main body, one end of the joint main body is connected with the shell, the other end of the joint main body is used for being communicated with the fresh air pipe, and the outer peripheral wall of the joint main body is provided with an inserting part; when one end of the fresh air pipe joint is in plug fit with the fresh air opening, the plug part is inserted into the plug groove and is clamped with the connecting part, and at least part of the plug part is exposed from the opening.

The utility model discloses technical scheme sets up inserting groove and opening through setting up connecting portion on the casing on the connecting portion, sets up grafting portion at the periphery wall of the joint main part that the new trend pipe connects, and when new trend pipe connects and is connected with the casing, grafting portion inserts in the inserting groove, and grafting portion at least part is exposed by the opening, and new trend pipe connects the card to establish on the casing. When the fresh air pipe joint and the shell are required to be detached, the insertion part is pressed or pushed through the opening, and the insertion part deforms, so that a gap exists between the insertion part and the connecting part, the joint main body is pulled again, the insertion part is pulled out from the insertion groove, and the fresh air pipe joint and the shell are separated. So, utilize connecting portion on the casing and the grafting portion on the fresh air pipe joint, greatly made things convenient for the dismantlement and the installation work between fresh air pipe joint and the casing, need not improve work efficiency with the help of other instruments, solved the problem that is difficult to dismantle between fresh air pipe joint and the casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a wall-mounted air conditioner indoor unit according to the present invention;

fig. 2 is another perspective view of the wall-mounted air conditioning indoor unit of fig. 1;

fig. 3 is another view of the wall-mounted air conditioning indoor unit of fig. 1;

fig. 4 is a schematic structural diagram of an embodiment of the fresh air module of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of a fresh air module (without a fresh air duct) according to the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of the housing of the present invention

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

fig. 8 is a schematic structural view of an embodiment of the fresh air pipe joint of the present invention;

fig. 9 is another perspective view of the fresh air duct joint of fig. 8.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a machine and air conditioner in new trend module, air conditioning.

Specifically, the air conditioner may be a wall-mounted air conditioner, a floor-mounted air conditioner, a mobile air conditioner, a window-mounted air conditioner, or an air conditioner, and the following description will be made in detail with reference to the air conditioner as an example of the wall-mounted air conditioner. In one embodiment, the wall-mounted air conditioner comprises an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected through refrigerant pipes. In an embodiment, referring to fig. 1 to 3, the wall-mounted air conditioner indoor unit 1 includes a casing 20 and a fresh air module 10, and the fresh air module 10 is installed in the casing 20. This new trend module 10 can install in casing 20, also can install on casing 20, and outdoor air can directly introduce to the indoor environment through this new trend module 10.

In the embodiment of the present invention, please refer to fig. 4 to 6, the fresh air module 10 includes a housing 100 and a fresh air pipe joint 200, the housing 100 has a fresh air channel 100a, and the housing 100 is provided with a fresh air port 100b communicated with the fresh air channel 100 a. Referring to fig. 6 to 7, the housing 100 is further provided with a connecting portion 110 spaced from the fresh air inlet 100b, the connecting portion 110 is provided with an insertion groove 110a, and a side wall of the connecting portion 110 is provided with an opening 110b communicated with the insertion groove 110 a. Referring to fig. 5 and 8, the fresh air pipe joint 200 includes a joint main body 210, one end of the joint main body 210 is connected to the housing 100, the other end is used for communicating with a fresh air pipe 300, and an insertion part 220 is disposed on an outer peripheral wall of the joint main body 210; when one end of the fresh air pipe joint 200 is inserted into the fresh air opening 100b, the insertion part 220 is inserted into the insertion groove 110a and is clamped with the connection part 110, and at least part of the insertion part 220 is exposed from the opening 110 b.

Referring to fig. 4 and 6, the casing 100 has a fresh air channel 100a therein, the casing 100 is provided with a fresh air inlet 100b and an air outlet, and the fresh air channel 100a is respectively communicated with the fresh air inlet 100b and the air outlet. The fresh air inlet 100b is used to connect the fresh air duct 300, and the fresh air duct 300 communicates with the outdoor environment to introduce outdoor air into the fresh air passage 100 a. The air outlet is used for bringing the air passing through the fresh air channel 100a into an indoor environment, and oxygen content and freshness of the indoor air are guaranteed. Can install the fan subassembly in this new trend passageway 100a, when the fan subassembly during operation, more outdoor air of drive get into new trend passageway 100a, increase the fresh air volume in the indoor environment to further guarantee the oxygen content and the new freshness of indoor air. In order to improve the cleanliness of air brought by the fresh air module 10, a purification component can be further installed in the fresh air channel 100a, the air entering the fresh air channel 100a is purified into relatively clean fresh air by the purification component, and then the clean fresh air is blown out from the air outlet to the indoor. It will be appreciated that the fan assembly may comprise a centrifugal fan and the purge assembly may comprise a HEPA network.

Referring to fig. 6, the casing 100 is provided with a connecting portion 110, and the connecting portion 110 and the fresh air inlet 100b are spaced apart from each other. That is, the connection portion 110 may be located near the fresh air opening 100b, or may not be located near the fresh air opening 100b, and may be specifically set according to actual conditions. A socket groove 110a and an opening 110b are provided in the connecting portion 110, and the socket groove 110a communicates with the opening 110 b. To facilitate the detachment of the fresh air pipe joint 200 from the housing 100, the slot opening of the insertion groove 110a is oriented in the same direction as the fresh air opening 100 b. The opening 110b of the connecting portion 110 may be located on a side of the connecting portion 110 facing the casing 100, or on a side of the connecting portion 110 facing away from the casing 100, so as to facilitate a user or an installer to detach the fresh air pipe joint 200, please refer to fig. 6 to 7, in an embodiment, the opening 110b is located on a side of the connecting portion 110 facing away from the casing 100, that is, the opening 110b is opened on an outer side of the connecting portion 110.

Referring to fig. 4 to 5, the fresh air pipe joint 200 includes a joint main body 210, and one end of the joint main body 210 is connected to the housing 100, and the other end is connected to the fresh air pipe 300, so that the fresh air pipe 300 is detachably mounted to the housing 100. When the fresh air pipe 300 is damaged or aged, only the new fresh air pipe 300 needs to be changed, and the whole fresh air module 10 does not need to be replaced, so that the service life of the fresh air module 10 is prolonged, and the use cost of a user is also reduced. The matching mode of one end of the fresh air pipe joint 200 and the fresh air port 100b is various, the pipe orifice of the fresh air pipe joint 200 can be opposite to the fresh air port 100b, and the fresh air pipe joint 200 can also be spliced with the fresh air port 100 b. When the fresh air pipe joint 200 is inserted into the fresh air opening 100b, the fresh air pipe joint 200 may be inserted into the fresh air opening 100b, or the fresh air opening 100b may be inserted into the fresh air pipe joint 200.

Referring to fig. 1 to 3, the outer peripheral wall of the connector main body 210 is provided with an insertion portion 220 engaged with the insertion groove 110a, when the fresh air pipe connector 200 is installed on the housing 100, an installer can connect the fresh air pipe 300 and the fresh air pipe connector 200 together, then insert the insertion portion 220 of the fresh air pipe connector 200 into the insertion groove 110a of the connection portion 110, and the insertion portion 220 is engaged with the connection portion 110, so that the fresh air pipe connector 200 is connected with the housing 100. After the plugging portion 220 is inserted into the plugging groove 110a, at least a portion of the plugging portion 220 is exposed from the opening 110b of the connection portion 110, and the opening 110b is used for a user or an installer to operate the plugging portion 220, so that the plugging portion 220 is separated from the connection portion 110, and the fresh air pipe joint 200 can be conveniently detached from the housing 100.

The utility model discloses technical scheme sets up connecting portion 110 through setting up connecting portion on casing 100, sets up inserting groove 110a and opening 110b on connecting portion 110, sets up grafting portion 220 at the periphery wall of new fan pipe joint 200's joint main part 210, and when new fan pipe joint 200 is connected with casing 100, grafting portion 220 inserts inserting groove 110a, and grafting portion 220 is at least partly exposed by opening 110b, and new fan pipe joint 200 card is established on casing 100. When the fresh air pipe joint 200 needs to be detached from the housing 100, the insertion part 220 is pressed or pushed through the opening 110b, the insertion part 220 deforms, so that a gap exists between the insertion part 220 and the connecting part 110, the joint main body 210 is pulled, the insertion part 220 is pulled out from the insertion groove 110a, and the fresh air pipe joint 200 is separated from the housing 100. Therefore, the connecting part 110 on the shell 100 and the inserting part 220 on the fresh air pipe joint 200 are utilized, the disassembly and the installation work between the fresh air pipe joint 200 and the shell 100 are greatly facilitated, other tools are not needed, the working efficiency is improved, and the problem that the fresh air pipe joint 200 and the shell 100 are difficult to disassemble is solved.

Referring to fig. 8 to 9, in an embodiment, the connector main body 210 has a first end 211 connected to the housing 100, and a second end 212 opposite to the first end 211, the plug-in part 220 includes a plug plate 221 and a protrusion 222 protruding from an outer wall of the plug plate 221, the plug plate 221 extends in a direction of the second end 212 toward the first end 211, and an elastic gap 220a is formed between the plug plate 221 and the connector main body 210.

Referring to fig. 5, 8 to 9, the protrusion 222 of the insertion plate 221 is engaged with the periphery of the opening 110b of the connection portion 110, so as to connect the insertion portion 220 and the connection portion 110 together. Through the elastic gap 220a between the insertion plate 221 and the connector main body 210, a user or an installer can press the insertion part 220 to separate the protrusion 222 from the connection part 110, pull the connector main body 210 to draw the insertion part 220 out of the insertion groove 110a, and quickly detach the new air pipe connector 200 from the housing 100.

Further, the male buckle 222 may be located at the free end of the insertion plate 221, or may be located at the middle of the insertion plate 221. With continued reference to fig. 8-9, in one embodiment, the protrusion 222 is located at the middle of the insert plate 221.

The portion of the insertion plate 221 from the convex buckle 222 to the free end provides a guiding function when being installed, and in the process that the insertion plate 221 is inserted into the insertion groove 110a, the convex buckle 222 is clamped with the periphery of the opening 110b of the connecting part 110, so that the installation of the fresh air pipe joint 200 and the shell 100 is facilitated. When the fresh air pipe joint 200 is disassembled, the part of the inserting plate 221 from the convex buckle 222 to the free end can play a role of pressing, and the inserting part 220 moves by pressing the part of the inserting plate 221, so that the inserting part 220 is separated from the connecting part 110, and the disassembling work of the fresh air pipe joint 200 and the shell 100 is further facilitated.

In order to facilitate the insertion of the insertion portion 220 into the insertion groove 110a, after the new air pipe joint 200 is installed, the new air pipe joint 200 is not easily separated from the housing 100, please continue to refer to fig. 9, in an embodiment, the distance between the insertion plate 221 and the joint main body 210 gradually increases from the second end 212 to the first end 211.

Similarly, in order to facilitate the insertion of the insertion portion 220 into the insertion groove 110a, referring to fig. 8, in an embodiment, the width of the insertion plate 221 is gradually decreased from the second end 212 to the first end 211. Since the width of the plug board 221 gradually decreases in the direction from the second end 212 to the first end 211, a user or an installer can insert the plug board 221 into the insertion groove 110a quickly and accurately, thereby further improving the working efficiency.

Referring to fig. 8 to 9, in an embodiment, the joint main body 210 includes a first main body 213 and a second main body 214 disposed on the first main body 213, and an outer diameter of the first main body 213 is larger than an outer diameter of the second main body 214; the peripheral wall of the first main body part 213 is provided with the inserting plate 221, the second main body part 214 is used for being inserted into the fresh air opening 100b, and the inner diameter of the fresh air opening 100b is smaller than the outer diameter of the first main body part 213.

Referring to fig. 8, the first main body 213 has an abutting surface 213a facing the fresh air inlet 100b, and when the second main body 214 is inserted into the fresh air inlet 100b, the abutting surface 213a abuts against the periphery of the fresh air inlet 100b, so that on one hand, the fresh air pipe joint 200 is positioned, thereby further facilitating the connection between the fresh air pipe joint 200 and the casing 100 and improving the working efficiency; on the other hand, air leakage at the joint of the fresh air inlet 100b and the fresh air pipe joint 200 is avoided.

Specifically, the connecting portion 110 on the connector main body 210 has various structures, please refer to fig. 6 to 7, in an embodiment, the connecting portion 110 includes a cross beam 111 and two ribs 112, the two ribs 112 are disposed on the housing 100 at intervals, the cross beam 111 connects the two ribs 112, the housing 100 and the connecting portion 110 enclose a notch of the inserting groove 110a, and an end of the connecting portion 110 away from the fresh air opening 100b is provided with the opening 110 b.

The housing 100, the cross beam 111 and the two ribs 112 enclose a slot opening of the inserting slot 110a, the cross beam 111 and the two ribs 112 enclose an opening 110b, after the inserting plate 221 is inserted into the slot opening, the convex buckle 222 on the inserting plate 221 is clamped with the cross beam 111, and meanwhile, the convex buckle 222 and the inserting plate 221 are partially exposed out of the opening 110b, so that the inserting plate 221 or the convex buckle 222 in the inserting slot 110a can be pressed conveniently.

In order to stably connect the fresh air pipe joint 200 to the housing 100, please refer to fig. 8, in an embodiment, the number of the inserting parts 220 is plural, and the plural inserting parts 220 are arranged at intervals along the circumferential direction of the joint main body 210

Through set up a plurality of grafting portions 220 at the circumference interval that connects main part 210, guaranteed the joint effect of fresh air pipe joint 200 with casing 100, fresh air pipe joint 200 is firm reliable to be difficult to the pine after with casing 100 installation and is taken off.

Further, referring to fig. 8, in an embodiment, the number of the inserting portions 220 is two, and the two inserting portions 220 are disposed opposite to each other. Because the two insertion parts 220 are symmetrically arranged, the fresh air pipe joint 200 and the shell 100 can be effectively fixed, and the fresh air pipe joint 200 is prevented from loosening. When the air conditioner is disassembled, the thumb and the middle finger can press the two insertion parts 220 at the same time, and then push the insertion part 220 in the direction away from the fresh air opening 100b, so that the insertion part 220 is separated from the connecting part 110.

Referring to fig. 8, in an embodiment, a plurality of clamping ribs 230 are arranged on an inner wall surface of the joint main body 210, the plurality of clamping ribs 230 are arranged at intervals in an axial direction of the joint main body 210, and the clamping ribs 230 are used for being clamped with the fresh air duct 300.

Because the fresh air duct 300 is generally a corrugated tube, the inner wall surface of the connector main body 210 is provided with the clamping rib 230, and the corrugated tube is fixed by clamping the clamping rib 230 with the outer wall surface of the corrugated tube, so that the corrugated tube is connected with the fresh air duct connector 200. Further, in order to fix the corrugated pipe firmly, after the corrugated pipe is clamped with the fresh air pipe connector 200, an adhesive tape can be wound on the fresh air pipe connector 200 and the corrugated pipe, so that the corrugated pipe is prevented from being separated from the fresh air pipe connector 200.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A fresh air module, comprising:

the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a fresh air channel, a fresh air port communicated with the fresh air channel is formed in the shell, a connecting part spaced from the fresh air port is further arranged on the shell, an inserting groove is formed in the connecting part, and an opening communicated with the inserting groove is formed in the side wall of the connecting part; and

the fresh air pipe joint comprises a joint main body, one end of the joint main body is connected with the shell, the other end of the joint main body is used for being communicated with a fresh air pipe, and the outer peripheral wall of the joint main body is provided with an inserting part;

when one end of the fresh air pipe joint is in plug fit with the fresh air opening, the plug part is inserted into the plug groove and is clamped with the connecting part, and at least part of the plug part is exposed from the opening.

2. The fresh air module as claimed in claim 1, wherein the connector body has a first end connected to the housing and a second end opposite to the first end, the insertion portion includes an insertion plate and a protrusion protruding from an outer wall of the insertion plate, the insertion plate extends in a direction from the second end toward the first end, and an elastic gap is formed between the insertion plate and the connector body.

3. The fresh air module as claimed in claim 2, wherein the tab is located at a middle portion of the insert plate.

4. The fresh air module as claimed in claim 2, wherein the spacing between the insert plate and the connector body increases in a direction from the second end to the first end.

5. The fresh air module as claimed in claim 2, wherein the width of the insert plate decreases gradually in a direction from the second end to the first end.

6. The fresh air module as claimed in claim 2, wherein the connector body comprises a first body portion and a second body portion disposed on the first body portion, the first body portion having an outer diameter greater than an outer diameter of the second body portion; the periphery wall of first main part is equipped with the picture peg, the second main part is used for inserting the fresh air inlet, the internal diameter of fresh air inlet is less than the external diameter of first main part.

7. The fresh air module as claimed in any one of claims 1 to 6, wherein the connecting portion comprises a cross member and two ribs, the two ribs are disposed on the housing at intervals, the cross member connects the two ribs, the housing and the connecting portion enclose a notch forming the insertion slot, and an end of the connecting portion away from the fresh air inlet is provided with the opening.

8. The fresh air module as claimed in any one of claims 1 to 6, wherein the number of the insertion parts is plural, and the plural insertion parts are arranged at intervals along the circumferential direction of the joint main body.

9. The fresh air module as claimed in claim 8, wherein the number of the plug-in parts is two, and the two plug-in parts are arranged oppositely.

10. The fresh air module as claimed in any one of claims 1 to 6, wherein a plurality of clamping ribs are arranged on the inner wall surface of the connector main body, the clamping ribs are arranged at intervals in the axial direction of the connector main body, and the clamping ribs are used for being clamped with the fresh air duct.

11. An indoor unit of an air conditioner, comprising a casing and the fresh air module as claimed in claims 1 to 10, wherein the fresh air module is installed in the casing.

12. An air conditioner comprising an outdoor unit and an indoor unit as claimed in claim 11, wherein the outdoor unit and the indoor unit are connected by refrigerant pipes.