CN220817905U

CN220817905U - Hanging fresh air conditioner indoor unit

Info

Publication number: CN220817905U
Application number: CN202322100306.1U
Authority: CN
Inventors: 李玉乾
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-04-19
Anticipated expiration: 2033-08-04

Abstract

The utility model discloses a hanging type fresh air conditioner indoor unit, which belongs to the technical field of air conditioners and comprises a shell, a heat exchange fan, a fresh air volute, a fresh air fan, a driving motor and a connecting piece, wherein the shell is arranged on the shell; the heat exchange fan is arranged in the shell and is used for introducing indoor air into the shell and flowing air-conditioning air in the shell into a room; a preformed hole is formed in one side of the fresh air volute, which is close to the heat exchange fan; the fresh air fan is used for introducing outdoor fresh air into a room; the driving motor is connected with the heat exchange fan; the connecting shaft is connected with the heat exchange fan and the fresh air fan; the connecting cavity is arranged on the fresh air fan, and the connecting piece is connected with the side wall of the fresh air volute provided with the reserved hole; one end of the connecting piece, which is far away from the preformed hole, extends into the fresh air cavity and is rotatably connected with the fresh air fan; the connecting piece is provided with a through cavity for the connecting shaft to pass through; the deviation between the actual value and the theoretical value of the gap between the fresh air fan and the fresh air volute in the indoor unit of the hanging type fresh air conditioner is small, and the installation accuracy of the fresh air fan is high.

Description

Hanging fresh air conditioner indoor unit

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a hanging type fresh air conditioner indoor unit.

Background

The fresh air conditioner is a healthy and comfortable air conditioner with a fresh air function, and a fresh air module is added on the basis of the heating or refrigerating function of the traditional air conditioner, wherein the fresh air module generally comprises a fresh air fan and a fresh air volute for accommodating the fresh air fan, and the fresh air fan operates to purify and then introduce outdoor oxygen-enriched air into a room, so that the ventilation and ventilation functions between indoor air and outdoor air are realized.

In the existing stage, in some hanging fresh air conditioner indoor units, a fresh air fan and a heat exchange fan are designed to be driven to run through the same driving motor, the driving motor can be a single-shaft motor, a motor shaft of the driving motor is connected with the heat exchange fan, the heat exchange fan is connected with the fresh air fan through a connecting shaft, and the driving motor drives the fresh air fan to rotate through the heat exchange fan, so that the fresh air fan and the heat exchange fan synchronously rotate; the driving motor can also be a double-shaft motor, one motor shaft of the driving motor is connected with the heat exchange fan, and the other motor shaft of the driving motor is connected with the fresh air fan, so that the driving motor drives the fresh air fan and the heat exchange fan to rotate. A certain safety gap is usually reserved between the fresh air fan and the inner wall of the fresh air volute so as to prevent the fresh air fan from colliding with the inner wall of the fresh air volute in the operation process, and the indoor unit can be effectively ensured to have larger fresh air quantity and reduce noise generated when the fresh air fan is operated.

The side wall of the fresh air volute towards one side of the heat exchange fan is provided with a preformed hole, so that a connecting shaft or a motor shaft of the driving motor can penetrate through the preformed hole to be connected with the fresh air fan. Because driving motor and heat exchange fan are located the fresh air volute outside generally, especially when driving motor is single-axis motor, driving motor, heat exchange fan and fresh air fan's installation size chain is longer, and do not have direct relation of connection generally between fresh air fan and the fresh air volute set up the lateral wall of preformed hole, clearance can only be after the installation of fresh air fan between fresh air fan and the inner wall of fresh air volute, passive prescribing a limit to formation. This also results in a great uncertainty in the deviation between the actual value and the theoretical value of the gap, and therefore, the installation accuracy of the fresh air fan is difficult to ensure.

In view of this, the present application has been proposed.

Disclosure of utility model

Aiming at the defects existing in the related art, the utility model provides the indoor unit of the hanging type fresh air conditioner, so that the installation precision of the fresh air fan is increased, and the deviation between the actual value and the theoretical value of the gap between the fresh air fan and the inner wall of the fresh air volute is reduced.

The utility model provides a hanging fresh air conditioner indoor unit, which comprises:

the shell at least comprises a shell air inlet and a shell air outlet, and the shell air inlet and the shell air outlet extend along the length direction of the shell respectively; the shell air inlet is formed in the top of the shell, and the shell air outlet is formed in the front side of the shell and near the bottom of the shell;

The heat exchanger is arranged in the shell;

The heat exchange fan is arranged in the shell and positioned below the heat exchanger; the heat exchange fan extends along the length direction of the shell; the indoor air is led into the shell from the shell air inlet through the operation of the heat exchange fan, and flows into the room from the shell air outlet after heat exchange of the heat exchanger;

The fresh air volute is arranged in the shell and is distributed with the heat exchange fan along the length direction of the shell;

The fresh air fan is arranged in the fresh air volute; the device is used for introducing outdoor fresh air into a room;

a driving motor mounted to the housing; the driving motor drives the heat exchange fan and the fresh air fan to synchronously operate;

The preformed hole is formed in the side wall of the fresh air volute, facing the heat exchange fan, and is communicated with the inside of the fresh air volute;

The connecting shaft is coaxially arranged with the heat exchange fan, is connected with the fresh air fan and penetrates through the reserved hole to be connected with one end, far away from the driving motor, of the heat exchange fan;

the connecting cavity is formed on the fresh air fan and provided with a connecting cavity opening which is arranged towards the reserved hole;

The connecting piece is positioned in the fresh air volute and is connected with the side wall of the fresh air volute provided with the reserved hole; one end of the connecting piece, which is far away from the preformed hole, extends into the connecting cavity; the connecting piece is limited to form a connecting piece through cavity for the connecting shaft to pass through, and the connecting piece through cavity is communicated with the reserved hole and is correspondingly arranged;

When the fresh air fan rotates, the connecting piece and the fresh air fan rotate relatively.

According to the technical scheme, the fresh air volute is arranged, the fresh air fan is installed by utilizing the fresh air volute, and a fresh air channel for communicating the indoor with the outdoor is formed, so that the outdoor fresh air is led into the room from the outdoor under the action of the fresh air fan; the driving motor is arranged to drive the fresh air fan and the heat exchange fan to operate, so that the integral structure is simplified; the fresh air volute is provided with the reserved hole, so that the connecting shaft can penetrate through the reserved hole to be connected with the fresh air fan; the connecting piece is fixedly connected with the fresh air volute and can be rotatably connected with the fresh air fan relatively, so that the fresh air fan is arranged in the fresh air volute, the installation accuracy of the fresh air fan is improved, and the deviation between the actual value and the theoretical value of a gap between the fresh air fan and the fresh air volute is reduced; through setting up the connecting chamber at fresh air fan, utilize the connecting chamber to hold the connecting piece to but make connecting piece and fresh air fan relative rotation be connected.

In some embodiments, a movable part is arranged in the connecting cavity, a gap is formed between the outer peripheral wall of one end of the connecting part extending into the connecting cavity and the inner wall of the connecting cavity, the movable part is arranged in the gap, and the movable part is in contact with the connecting part and the inner wall of the connecting cavity so that the connecting part is rotationally connected with the fresh air fan.

In some embodiments, the connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the side wall of the fresh air volute provided with the reserved hole, and one end of the first connecting piece away from the reserved hole is connected with the second connecting piece; one end of the second connecting piece far away from the first connecting piece stretches into the connecting cavity and contacts with the movable piece; the connecting piece through cavity penetrates through the first connecting piece and the second connecting piece along the axial direction of the connecting shaft.

In some of these embodiments, the first connector defines a first cavity extending axially of the connecting shaft and communicating with the preformed hole; the second connector defines a second cavity that communicates with the first cavity to collectively form a connector through cavity.

In some of these embodiments, the first connector extends into the second cavity away from an end of the preformed hole.

In some of these embodiments, the second connector is provided with a contact portion and a shielding portion, the contact portion and the shielding portion together defining a second cavity; the contact part extends into the connecting cavity and contacts with the movable part; the shielding part is positioned at the opening of the connecting cavity to close the opening of the connecting cavity; the shielding part is connected with the first connecting piece at one side away from the second cavity.

In some embodiments, the connecting shaft is provided with a rotating part which is positioned in the first cavity and can rotate relative to the inner wall of the first cavity.

In some embodiments, the connecting shaft comprises a driving shaft and a fan shaft, the driving shaft is connected to one end of the heat exchange fan far away from the driving motor, the fan shaft is arranged in the connecting cavity and connected to the fresh air fan, and the fan shaft passes through the connecting piece through cavity and the reserved hole to be connected with the driving shaft.

In some embodiments, a coupling is connected to the fan shaft at an end remote from the fresh air fan and is connected to the drive shaft via the coupling.

In addition, the utility model provides a hanging fresh air conditioner indoor unit, which comprises:

The heat exchanger is arranged in the shell;

The connecting piece is positioned in the fresh air volute and is connected with the side wall of the reserved hole formed in the fresh air volute, the other end of the connecting piece in the length direction of the shell extends into the connecting cavity, the connecting piece is limited to form a connecting piece through cavity for the connecting shaft to pass through, and the connecting piece through cavity is communicated with the reserved hole and is correspondingly arranged;

a gap is formed between the connecting piece and the inner wall of the connecting cavity;

The movable piece is arranged in a gap between the connecting piece and the inner wall of the connecting cavity, and is contacted with the connecting piece and the inner wall of the connecting cavity so as to enable the connecting piece to be movably connected with the fresh air fan;

Based on the technical scheme, the indoor unit of the hanging type fresh air conditioner is fixedly connected with the fresh air volute by the connecting piece and can be rotatably connected with the fresh air fan relatively, so that the actual value and the theoretical value of the gap between the fresh air fan and the inner wall of the fresh air volute have smaller errors, and the installation accuracy of the fresh air fan in the fresh air cavity of the fresh air volute is ensured; and the connecting piece is limited to form a connecting piece through cavity so that the connecting shaft penetrates through the connecting piece through cavity to be connected with the fresh air fan and drive the fresh air fan to operate. The noise transferred to the room when the indoor unit of the hanging fresh air conditioner works is small, and the fresh air quantity is large.

Drawings

FIG. 1 is a schematic view of an embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 2 is a schematic view of the structure of the interior of an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 3 is a schematic view of another internal angle of a hanging fresh air conditioner indoor unit according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a fresh air module assembled with a casing in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 5 is an enlarged view of the structure of FIG. 4 at A;

FIG. 6 is a schematic view of the structure of the interior of a casing in one embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 7 is an enlarged view of the structure at B in FIG. 6;

FIG. 8 is a schematic view of a structure in which a mounting seat is assembled inside a casing in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 9 is an enlarged view of the structure at C in FIG. 8;

FIG. 10 is a schematic diagram of a connection between a fresh air fan and a heat exchange fan in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 11 is a cross-sectional view of a fresh air fan and a heat exchange fan in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 12 is a schematic view of a fresh air module in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 13 is a schematic view of another angle of a fresh air module in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 14 is an exploded view of a fresh air module in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 15 is a cross-sectional view of a connector in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model assembled with a fresh air fan and a first volute;

FIG. 16 is a schematic view illustrating the assembly of a connector and a fan in an embodiment of a hanging-type fresh air conditioner indoor unit according to the present utility model;

FIG. 17 is a schematic view of a fan of a hanging type indoor unit of a fresh air conditioner according to an embodiment of the present utility model;

FIG. 18 is a schematic view of a semi-sectional structure of a hanging fresh air conditioner indoor unit according to an embodiment of the present utility model when a connector is assembled with a fresh air fan;

FIG. 19 is a schematic view of a connector in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 20 is a schematic view of another angle of a connector in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model

FIG. 21 is a schematic view of a semi-sectional structure of a connector in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 22 is a schematic view of a bearing assembly in one embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 23 is a cross-sectional view of a bearing assembly in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 24 is a schematic view of a bearing bead in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 25 is a schematic view of another angle of the mounting base of an indoor unit of a hanging type fresh air conditioner according to an embodiment of the present utility model;

Fig. 26 is a schematic view of another angle of the mounting base in an embodiment of the indoor unit of a hanging type fresh air conditioner according to the present utility model.

Fig. 27 is a schematic cross-sectional view of an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model, when the bearing member is assembled with the mounting base.

In the drawing the view of the figure,

1. A housing; 2. an air deflector; 3. fresh air volute; 4. a heat exchanger; 5. a driving motor; 6. a coupling; 7. a bearing member; 8. a mounting base; 9. a heat exchange fan; 10. a fresh air fan; 20. a connecting piece; 30. a movable member;

11. An air inlet of the shell; 12. a new wind gap; 13. a second mounting cavity; 14. a first mounting cavity; 15. an air outlet of the shell; 16. a third mounting cavity; 17. a first mounting portion; 18. a second mounting portion; 181. a through groove; 182. a second support table; 183. a first support table; 184. a clamping groove;

31. A first volute; 32. a second volute; 33. fresh air shell; 34. a purification module; 35. fresh air outlet; 36. a switch assembly; 37. a fresh air inlet;

311. A preformed hole; 312. a connection hole;

321. a fresh air cavity; 322. a fresh air grid;

331. A clean room; 361. a baffle; 362. a rack; 363. a baffle motor;

71. A bearing sleeve; 72. bearing beads;

711. A connecting block; 712. a connecting groove; 713. buffering the ribs; 714. the bearing is communicated with the cavity; 715. a mounting groove; 716. a reinforcing part;

81. A support part; 82. a clamping part; 83. an extension; 84. a first through cavity; 85. a stop block; 86. a positioning block;

91. A drive shaft; 92. a fan shaft sleeve;

101. a hub; 102. a fan blade; 103. a connection part; 104. a connecting cavity; 105. a fixing part; 106. a fan shaft; 107. a rotating part;

201. A second connector; 202. a first connector;

2011. a shielding part; 2012. a contact portion; 2013. a second chamber;

2021. A first chamber; 2022. a first boss; 2023. a second protruding portion; 2024. a third boss; 2025. and a positioning part.

Detailed Description

For the purposes of making the objects and embodiments of the present utility model more apparent, an exemplary embodiment of the present utility model will be described in detail below with reference to the accompanying drawings in which exemplary embodiments of the present utility model are illustrated, it being apparent that the exemplary embodiments described are only some, but not all, of the embodiments of the present utility model.

It should be noted that the brief description of the terminology in the present utility model is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present utility model. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms "first," second, "" third and the like in the description and in the claims and in the above drawings are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The hanging type fresh air conditioner indoor unit provided by the embodiment of the utility model can have various implementation forms. Fig. 1-27 are a specific embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model, and in this embodiment, the hanging type fresh air conditioner indoor unit includes a casing 1, a heat exchanger 4, a fresh air module, a heat exchange fan 9, a driving motor 5, a bearing component 7 and a mounting seat 8.

In the above-mentioned air conditioning indoor unit, as shown in fig. 1, the casing 1 is used to form the overall appearance of the air conditioning indoor unit, the casing 1 has a top and a bottom, the top of the casing 1 is opposite to the bottom of the casing 1 at two ends, and the height direction of the casing 1 is from the top of the casing 1 to the bottom of the casing 1; the left side of the shell 1 is opposite to the right side of the shell 1, and the length direction of the shell 1 is from the left side of the shell 1 to the right side of the shell 1; the front side of the shell 1 and the rear side of the shell 1 are opposite sides, and the direction from the front side of the shell 1 to the rear side of the shell 1 is the thickness direction of the shell 1; wherein, the casing 1 is arranged at the indoor top or in the indoor upper space, and the rear side of the casing 1 is arranged towards the wall.

The heat exchange air duct is limited and formed in the shell 1, the shell 1 is provided with a shell air inlet 11 and a shell air outlet 15, the shell air inlet 11 is communicated with the shell air outlet 15 respectively and is located at the top of the shell 1, the shell air outlet 15 is formed in the front side of the shell 1 and is close to the bottom of the shell 1, and the shell air outlet 15 is located at the front lower side of the shell 1.

An air inlet grille is arranged at the air inlet 11 of the shell to prevent sundries from entering the shell; the casing air outlet 15 is located in the front lower side of the casing, the air deflector 2 is arranged at the casing air outlet 15, and the air deflector 2 is connected to the casing in an openable manner so as to open or close the casing air outlet 15.

The casing is also provided with a fresh air port 12 so that outdoor fresh air flows into the room from the fresh air port 12; in some embodiments, the fresh air inlet 12 is located at the left side of the housing air inlet 11 and has an opening facing upwards, so that the outdoor fresh air flows into the room in an upward direction, thereby preventing the outdoor fresh air from mixing with the air-conditioning air.

As shown in fig. 2 and 3, the heat exchanger 4 is installed in the casing 1 and located in the heat exchange air duct, and is used for exchanging heat of indoor air in the heat exchange air duct to form air-conditioning air, so as to meet the refrigerating or heating requirement of a user; the heat exchanger 4 is disposed near the housing air inlet 11. The air conditioner may be cold air, hot air, or even normal temperature air.

The heat exchange fan 9 is installed in the shell 1 and is located in the heat exchange air duct, the heat exchange fan 9 is located below the heat exchanger 4, the axial direction of the heat exchange fan 9 extends along the length direction of the shell 1, indoor air is introduced into the heat exchange air duct through the operation of the heat exchange fan 9, and after the heat exchange is carried out through the heat exchanger 4 to form air-conditioning air, the air-conditioning air flows into a room from the shell air outlet 15. The heat exchange fan 9 is a cross flow fan.

As shown in fig. 2-4, the fresh air module is used for introducing outdoor fresh air into a room; the fresh air module comprises a fresh air volute 3 and a fresh air fan 10, wherein the fresh air volute 3 and the heat exchange fan 9 are distributed along the length direction of the shell 1, a fresh air channel is limited in the fresh air volute 3, the fresh air fan 10 is arranged in the fresh air channel, the fresh air channel is provided with a fresh air inlet 37 and a fresh air outlet 35, the fresh air inlet 37 is communicated with the outside, and the fresh air outlet 35 is communicated with the fresh air inlet 12; by the operation of the fresh air fan 10, outdoor fresh air is introduced into the fresh air duct from the fresh air inlet 37, passes through the fresh air outlet 35, and flows indoors from the fresh air inlet 12.

In the indoor unit of the hanging type fresh air conditioner, the driving motor 5 is used for driving the heat exchange fan 9 and the fresh air fan 10 to synchronously operate. The driving motor 5 is configured as one, and the driving motor 5 may be a single-shaft motor or a double-shaft motor.

When the driving motor 5 is a single-shaft motor, the motor shaft of the driving motor 5 is connected with the heat exchange fan 9, and the heat exchange fan 9 is connected with the fresh air fan 10 through the connecting shaft, so that the driving motor 5 can drive the heat exchange fan 9 and the fresh air fan 10 to synchronously rotate. When the driving motor 5 is a double-shaft motor, the driving motor 5 comprises a first motor shaft and a second motor shaft, the first motor shaft and the second motor shaft are coaxially arranged, the first motor shaft is connected with the heat exchange fan 9, and the second motor shaft is connected with the fresh air fan 10, so that the driving motor 5 can drive the heat exchange fan 9 and the fresh air fan 10 to synchronously rotate.

When the driving motor 5 is a single-shaft motor, the driving motor 5 is located at one end of the heat exchange fan 9 along the length direction of the casing 1, and when the driving motor 5 is a double-shaft motor, the driving motor 5 is located between the heat exchange fan 9 and the fresh air fan 10 along the length direction of the casing 1.

In order to install the fresh air volute 3, the fresh air fan 10 and the driving motor 5, as shown in fig. 4, 6 and 8, the casing 1 is provided with a first installation cavity 14, a second installation cavity 13 and a third installation cavity 16, and the second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are distributed along the length direction of the casing 1; the first installation cavity 14 is used for installing the heat exchange fan 9; the second mounting cavity 13 is used for mounting the driving motor 5; the third installation cavity 16 is used for installing the fresh air module.

As shown in fig. 7 to 9, the third installation cavity 16 and the first installation cavity 14 are isolated from each other by the first installation portion 17, and the first installation cavity 14 and the second installation cavity 13 are isolated from each other by the second installation portion 18.

In some embodiments, a purification module 34 is provided within the fresh air duct to purify the outdoor fresh air flowing indoors. The purifying module 34 comprises a purifying frame and a filter screen, wherein the filter screen is arranged on the purifying frame and is used for filtering and purifying outdoor fresh air to prevent impurities and floccules doped in the outdoor fresh air from entering a room.

Specifically, as shown in fig. 12 to 14, the fresh air volute 3 includes a first volute 31, a second volute 32, and a fresh air casing 33; the first volute 31 and the second volute 32 are arranged opposite to each other and form a fresh air cavity 321 together, and the fresh air fan 10 is arranged in the fresh air cavity 321; the fresh air shell 33 and one side of the second volute 32 away from the first volute 31 are oppositely arranged to form a purifying chamber 331 together; fresh air cavity 321 and clean room 331 together form a fresh air duct.

The second volute 32 is provided with a fresh air grid 322, and the fresh air grid 322 is located at the joint of the purifying chamber 331 and the fresh air cavity 321, so that the purifying chamber 331 and the fresh air cavity 321 are mutually communicated. The fresh air inlet 37 is formed in the purifying chamber 331, the fresh air outlet 35 is formed in the fresh air cavity 321, and the purifying module 34 is arranged in the purifying chamber 331, so that the purifying module 34 can purify outdoor fresh air entering the purifying chamber 331 from the fresh air inlet 37, and air purified by the purifying module 34 in the purifying chamber 331 enters the fresh air cavity 321 through the fresh air grid 322 and flows into the room from the fresh air port 12 through the fresh air outlet 35.

The first volute 31 is provided with a preformed hole 311, an opening of the preformed hole 311 extends along the length direction of the casing 1, and the connecting shaft or the second motor shaft can penetrate through the preformed hole 311 and extend into the fresh air cavity 321 so as to be connected with the fresh air fan 10.

It should be noted that, the purifying chamber 331 is provided with a socket, so that the purifying module 34 stretches into the purifying chamber 331 through the socket, and therefore the purifying module 34 is installed, when the purifying module 34 needs to be disassembled, the purifying module 34 is pulled out from the socket, and the purifying module 34 is detachably installed in the purifying chamber 331, so that a user can conveniently and automatically disassemble, clean and replace the filter screen, and the disassembling and installing modes of the purifying module 34 are simple and easy to operate.

In other embodiments, a flow guiding member is installed at the fresh air outlet 35, and the flow guiding member defines a flow guiding cavity, and the flow guiding cavity is communicated with the fresh air cavity 321, so that fresh air outside the inner chamber of the fresh air cavity 321 flows into the chamber through the flow guiding cavity.

As shown in fig. 10 to 11, the fresh air fan 10 is a centrifugal fan, and the fresh air fan 10 is used for introducing indoor fresh air into a room; the fresh air fan 10 is installed in the fresh air cavity 321, and the fresh air fan 10 runs to introduce outdoor fresh air into the fresh air cavity 321 from the fresh air inlet 37, enters the fresh air cavity 321 after being purified by the purification module 34, and flows indoors from the fresh air outlet 35 and the fresh air inlet 12.

The connecting shaft or the second motor shaft is usually connected with a bearing part 7 to support the connecting shaft or the second motor shaft to rotate, so that the rotation stability of the connecting shaft or the second motor shaft is improved.

As shown in fig. 10-11, the bearing component 7 is located outside the fresh air cavity 321 and between the fresh air module and the heat exchange fan 9; the bearing member 7 defines a bearing through cavity 714 through which the connecting shaft or the second motor shaft passes; the openings at the two ends of the bearing through cavity 714 are correspondingly arranged towards the fresh air fan 10 and the heat exchange fan 9.

As shown in fig. 22 to 24, the bearing member 7 includes a bearing housing 71 and a bearing bead 72, and a bearing through chamber 714 is provided through the bearing housing 71 and the bearing bead 72; one end of the connecting shaft or the second motor shaft, which is far away from the heat exchange fan 9, passes through the bearing through cavity 714; the bearing sleeve 71 is provided with a mounting groove 715, and the mounting groove 715 is communicated with the bearing through cavity 714 and is arranged close to the heat exchange fan 9; the bearing bead 72 is disposed in the mounting groove 715 and is coupled to the coupling shaft or the second motor shaft.

In some embodiments, as shown in fig. 23, a reinforcing portion 716 is disposed at an end of the bearing sleeve 71 away from the heat exchange fan 9, and the bearing through cavity 714 extends to the reinforcing portion 716 along the axial direction of the connection shaft or the second motor shaft to increase the contact area between the connection shaft or the second motor shaft and the bearing sleeve 71.

As shown in fig. 27, the bearing member 7 is mounted on the mount 8, and the mount 8 is mounted in the housing 1; the bearing part 7 is installed by arranging the installation seat 8, so that the bearing part 7 can better support the connecting shaft or the second motor shaft; the mount 8 is provided outside the bearing member 7 and is mounted on the second mounting portion 18.

Specifically, as shown in fig. 25 to 27, a first through cavity 84 is provided in the mounting seat 8, the first through cavity 84 is used for mounting the bearing component 7, the bearing component 7 is provided in the first through cavity 84, and the outer periphery of the bearing sleeve 71 is tightly attached to the inner wall of the first through cavity 84, so that the bearing component 7 is connected with the mounting seat 8; the first through-chamber 84 extends along the length of the housing 1 such that the drive shaft 91 may extend into the first through-chamber 84 to connect with the bearing member 7 and through the first through-chamber 84 to connect with the heat exchange fan 9.

The connection table is disposed in the first through cavity 84, and the connection table is disposed in the first through cavity 84 and circumferentially disposed along the first through cavity 84; the bearing housing 71 is provided with a connecting block 711, the connecting block 711 is located at the periphery of the bearing housing 71 and circumferentially arranged along the bearing housing 71, and the connecting block 711 is abutted against the connecting table, so that the bearing housing 71 is tightly pressed and assembled with the inner wall of the first through cavity 84, and the bearing member 7 is fixedly connected with the mounting seat 8.

It should be further noted that the connecting table is connected to the inner wall of the first through cavity 84, and the inner diameter of the connecting table is gradually reduced along the axial direction of the first through cavity 84 from the direction of the connecting table approaching the heat exchange fan 9, so that the closer the bearing sleeve 71 is to the heat exchange fan 9, the greater the mutual extrusion force between the bearing sleeve 71 and the inner wall of the first through cavity 84 is, so that the bearing component 7 is conveniently connected with the mounting seat 8.

In some embodiments, the mounting base 8 is provided with a stopper 85, the stopper 85 is located at an opening of the first through cavity 84 facing the heat exchange fan 9, and the stopper 85 cooperates with the bearing housing 71 to prevent the bearing housing 71 from being separated from the first through cavity 84.

In some embodiments, the mounting base 8 is provided with a positioning block 86, and the positioning block 86 is located in the first through cavity 84; the bearing sleeve 71 is provided with a connecting groove 712 which is arranged corresponding to the positioning block 86, and the connecting groove 712 is positioned at the periphery of the bearing sleeve 71; the positioning block 86 is disposed in the connecting groove 712 to position the mounting position of the bearing member 7 in the first through cavity 84.

In some embodiments, the outer periphery of the bearing sleeve 71 is provided with a buffer rib 713, the buffer rib 713 protrudes from the outer surface of the bearing sleeve 71 and abuts against the inner wall of the first through cavity 84, and the buffer rib 713 can facilitate the bearing sleeve 71 to be installed in the first through cavity 84 on one hand, and can increase the firmness of the bearing sleeve 71 abutting against the inner wall of the first through cavity 84 and can also protect the contact part of the bearing sleeve 71 and the inner wall of the first through cavity 84 on the other hand.

The bearing sleeve 71 is made of soft materials such as rubber or silica gel, so that the bearing beads 72 can be conveniently installed in the installation groove 715, the bearing sleeve 71 can be conveniently installed in the first through cavity 84, and vibration generated in the running process of the heat exchange fan 9 and the fresh air fan 10 can be buffered and absorbed.

In other embodiments, the end of the bearing housing 71 facing the first volute 31 is provided with a reinforcing portion 716, and the bearing through cavity 714 is disposed through the reinforcing portion 716 to increase the contact area between the driving shaft 91 and the bearing housing 71.

In order to facilitate the installation of the mounting seat 8, as shown in fig. 8 and 9, the second mounting portion 18 is provided with a through slot 181, the through slot 181 extends along the length direction of the casing 1, and the mounting seat 8 is disposed in the through slot 181 to position the mounting seat 8 at the mounting position of the second mounting portion 18.

In some embodiments, the second mounting portion 18 is provided with a receiving cavity, an opening of the receiving cavity is disposed towards the top of the casing 1 and is communicated with the through groove 181, a first supporting table 183 is disposed in the receiving cavity, and the first supporting table 183 abuts against the bottom of the mounting seat 8 to support the mounting seat 8.

In some embodiments, the mounting seat 8 is provided with an extension portion 83, and the extension portion 83 is disposed in the accommodating cavity to position the connection position of the mounting seat 8 and the second mounting portion 18; it should be noted that the number of the extending portions 83 is two, and the two extending portions 83 are located outside the mounting base 8 and extend along the height direction of the casing 1; the two extending parts 83 are respectively arranged oppositely along the length direction of the casing 1 with a gap therebetween; the first support block 183 is located between the two extensions 83.

It should be noted that the accommodating cavity includes a first accommodating cavity and a second accommodating cavity, the first accommodating cavity and the second accommodating cavity are arranged in parallel, the first accommodating cavity is arranged near the fresh air module, and the second accommodating cavity is arranged near the heat exchange fan 9; the two extending portions 83 are correspondingly arranged in the first accommodating cavity and the second accommodating cavity so as to further position the mounting seat 8.

In other embodiments, as shown in fig. 9 and 24, the clamping portion 82 is disposed on the extension portion 83 in the first accommodating cavity and is located on a side of the extension portion 83 away from the other extension portion 83; the second mounting portion 18 is provided with a clamping groove 184, the clamping groove 184 is communicated with the first accommodating cavity, and the clamping portion 82 is arranged in the clamping groove 184, so that the mounting seat 8 is fixedly connected with the second mounting portion 18, and the mounting seat 8 is mounted in the casing 1.

In some embodiments, as shown in fig. 24, the mounting seat 8 is further provided with a supporting portion 81, and the supporting portion 81 is connected to the top of the two extending portions 83; as shown in fig. 7, a second supporting table 182 is further disposed in the accommodating cavity, and the supporting portion 81 is located on top of the second supporting table 182 to support the mounting seat 8.

The two support portions 81 are arranged symmetrically along the thickness direction of the casing 1; and the second support tables 182 are also arranged in two, the two second support tables 182 being provided in one-to-one correspondence with the two support portions 81.

It should be noted that, as shown in fig. 15, a gap needs to be left between an end of the fresh air fan 10 facing the first volute 31 and a side of the first volute 31 facing the fresh air fan 10, so as to ensure that the fresh air fan 10 will not collide with the first volute 31 when the fresh air fan 10 is running, increase the running stability of the fresh air fan 10, and reduce the noise generated when the fresh air fan 10 is running.

Because driving motor 5 sets up in the fresh air chamber 321 outside, when driving motor 5 is biax motor, the second motor shaft of driving motor 5 passes preformed hole 311 and is connected with fresh air fan 10, and when driving motor 5 is unipolar motor, fresh air fan 10 need be connected with heat exchange fan 9 through the connecting axle, and heat exchange fan 9 is connected with driving motor 5 again, from this, can know, no matter driving motor 5 is unipolar motor or biax motor, the installation dimension chain between driving motor 5 and the fresh air fan 10 is all longer, leads to fresh air fan 10 running stability poor.

In the prior art, there is no direct connection relationship between the fresh air fan 10 and the first volute 31 in the length direction of the casing 1, the gap size between the fresh air fan 10 and the first volute 31 is difficult to ensure, so that the deviation between the actual value and the theoretical value of the gap size D between the fresh air fan 10 and the first volute 31 is larger, therefore, in this embodiment, the connecting piece 20 is provided, one end of the connecting piece 20 in the length direction of the casing 1 is fixedly connected with the first volute 31, and the other end of the connecting piece 20 in the length direction of the casing 1 is rotatably connected with the fresh air fan 10 relatively, so as to ensure the reliability and stability of the connection relationship between the fresh air fan 10 and the first volute 31, thereby reducing the deviation between the actual value and the theoretical value of the gap size, and further ensuring the installation accuracy of the fresh air fan 10 in the fresh air cavity 321.

The connecting member 20 is provided with a connecting member through cavity through which the connecting shaft or the second motor shaft passes, so that the connecting shaft or the second motor shaft can pass through the connecting member through cavity and the reserved hole 311.

Taking the driving motor 5 as a single-shaft motor as an example, the indoor unit of the hanging type fresh air conditioner is described in detail. In the present embodiment, the second installation cavity 13 is located at the left side of the first installation cavity 14, and the third installation cavity 16 is located at the right side of the first installation cavity 14; namely, the second installation cavity 13, the first installation cavity 14 and the third installation cavity 16 are arranged in sequence from left to right along the length direction of the casing 1. The driving motor 5 is provided with a motor shaft, the motor shaft of the driving motor 5 is connected with the heat exchange fan 9, one end of the heat exchange fan 9 far away from the driving motor 5 is connected with a connecting shaft, and the connecting shaft is connected with the fresh air fan 10, so that the heat exchange fan 9 and the fresh air fan 10 simultaneously operate.

Specifically, the motor shaft of the driving motor 5 is connected with one end of the heat exchange fan 9 along the length direction of the casing 1, and one end of the heat exchange fan 9 away from the driving motor 5 is connected with a connecting shaft and is connected with the fresh air fan 10 through the connecting shaft, so that the heat exchange fan 9 and the fresh air fan 10 are connected in series with each other; wherein the motor shaft of the driving motor 5, the heat exchange fan 9 and the connecting shaft are coaxially arranged.

As shown in fig. 10, a fan shaft sleeve 92 is provided at one end of the heat exchange fan 9 connected with the driving motor 5, the fan shaft sleeve 92 is provided with a mounting hole, and a motor shaft of the driving motor 5 extends into the mounting hole so as to connect the driving motor 5 and the heat exchange fan 9 to each other.

As shown in fig. 10, the connection shaft includes a driving shaft 91 and a fan shaft 106, the driving shaft 91 is connected to an end of the heat exchanging fan 9 away from the driving motor 5, the fan shaft 106 is connected to the fresh air fan 10, and the driving shaft 91 and the fan shaft 106 are connected to each other through the coupling 6 so that the heat exchanging fan 9 is connected to the fresh air fan 10. The installation and assembly of the connection shaft is facilitated by designing the connection shaft to include two parts of the driving shaft 91 and the fan shaft 106.

The coupling 6 is located outside the fresh air chamber 321 and between the bearing member 7 and the first volute 31; the coupling 6 is of prior art and will not be described in detail here.

As shown in fig. 16 and 17, the fresh air fan 10 includes a hub 101 and a plurality of blades 102; the fan blades 102 are sequentially arranged at intervals along the circumferential direction of the hub 101 and are fixedly connected with the hub 101; the fan blades 102 are distributed along the circumferential direction of the hub 101 and form a circular base, the fan blades 102 circumferentially encircle to form a fan cavity, the fan cavity is positioned at the middle part of the circular base, the fan cavity is positioned at one side of the fan blades 102 close to each other, and the fan blades 102 are connected into a whole at one side deviating from the cavity through the connecting part 103, so that the fan blades 102 can synchronously work, and the whole fan blades 102 can play the best working effect.

Gaps exist between adjacent fan blades 102, the gaps between the adjacent fan blades 102 are communicated with the fan cavity to form a fan air outlet, and the fan air outlet is communicated with the fan cavity and the fresh air outlet 35 so that air flow in the fan cavity can flow to the fresh air outlet 35; the fan cavity is also provided with a fan air inlet, the fan air inlet is arranged towards the fresh air grille 322, indoor air entering the fresh air cavity 321 from the fresh air grille 322 enters the fan cavity from the fan air inlet, and then flows out of the fan cavity from the fan air outlet.

One end of the plurality of fan blades 102, which is away from the fan air inlet, is connected with a hub 101 and is connected into a whole through a hub 10 so as to increase the firmness of the interconnection between the plurality of fan blades 102; the connecting portion 103 is located at one end of the fan 102 facing the air inlet, and the connecting portion 103 and the hub 101 are respectively arranged at two ends of the fan 102, so that connection firmness among the fan 102 is guaranteed, and the fan 102 can exert the maximum working effect as a whole.

The connecting portion 103 is only connected to one side of the plurality of fan blades 102, which is away from the cavity, so that the working effect of the fan blades 102 is prevented from being influenced by the overlarge area of the connecting portion 103, the connecting portion 103 and the fan blades 102 are integrally formed in an injection molding mode, and the whole weight of the fresh air fan 101 can be reduced by reducing the area of the connecting portion 103.

It should be noted that, the side of the hub 101 away from the fan blade 102 faces the first volute 31, and a certain gap is formed between the hub and the first volute 31 along the length direction of the casing 1, so as to ensure the reliability of the operation of the fresh air fan 10; the fresh air fan 10 is a centrifugal fan.

In some embodiments, the fresh air fan 10 is provided with a connecting cavity 104, the fan shaft 106 is disposed in the connecting cavity 104, and a fixing portion 105 is disposed in the connecting cavity 104, and an end of the fan shaft 106 remote from the driving shaft 91 is connected to the fixing portion 105.

In other embodiments, the fixing portion 105 and the inner wall of the connecting cavity 104 that is open toward the connecting cavity 104 define a receiving cavity, and an end of the fan shaft 106 away from the driving shaft 91 extends into the receiving cavity to increase the strength of the connection between the fan shaft 106 and the fixing portion 105.

In some embodiments, the connecting cavity 104 is formed by a middle portion of the hub 101 protruding away from the preformed hole 311, and an opening of the connecting cavity 104 is disposed toward the preformed hole 311.

Specifically, as shown in fig. 18 to 20, the connector 20 includes a first connector 202 and a second connector 201, the first connector 202 is connected to the first scroll 31, one end of the second connector 201 in the longitudinal direction of the casing 1 is connected to the first connector 202, and the other end of the second connector 201 in the longitudinal direction of the casing 1 is rotatably connected to the fresh air fan 10.

The first connector 202 defines a first cavity 2021 formed therein, the first cavity 2021 being disposed along the length of the chassis 1 and extending through the first connector 202, and the second connector 201 defines a second cavity 2013 formed therein, the second cavity 2013 being in communication with the first cavity 2021 to collectively form the connector through cavity for connecting the fan shaft 106 to the heat exchange fan 9 through the second cavity 2013, the first cavity 2021.

The first chamber 2021 and the second chamber 2013 are through chambers extending along the length direction of the casing 1, respectively.

In order to facilitate the rotational connection of the second connection piece 201 with the fresh air fan 10, the fresh air fan 10 is provided with a connection cavity 104, and the connection cavity 104 is provided with a connection cavity 104 opening towards the preformed hole 311; the second connecting piece 201 includes a contact portion 2012, the contact portion 2012 extends along the length direction of the casing 1, and one end of the contact portion 2012 along the length direction of the casing 1 extends into the connecting cavity 104 and is rotatably connected with the fresh air fan 10.

A gap is formed between the outer peripheral wall of one end of the contact part 2012 extending into the connecting cavity 104 and the inner wall of the connecting cavity 104, and a movable piece 30 is installed in the gap, and the movable piece 30 contacts with the contact part 2012 and the inner wall of the connecting cavity 104, so that the second connecting piece 201 and the fresh air fan 10 can rotate relatively.

It should be noted that, one end of the contact portion 2012 away from the connection cavity 104 is provided with a shielding portion 2011, and the shielding portion 2011 is connected with the first connecting member 202 and extends in a plane intersecting with the opening of the connection cavity 104, and the shielding portion 2011 is located at the opening of the connection cavity 104 to close the opening of the connection cavity 104 and prevent outdoor fresh air in the fresh air cavity 321 from entering the connection cavity 104.

It should be noted that, the movable member 30 is usually a ball, but may also be a roller, which belongs to the prior art in this field, and will not be described herein.

In order to facilitate connection between the first connecting member 202 and the first volute 31, the first connecting member 202 is provided with a first boss 2022 and a second boss 2023, the first boss 2022 and the second boss 2023 are respectively provided with a mounting hole, the first volute 31 is provided with a connecting hole 312, the connecting hole 312 is disposed corresponding to the mounting hole, and a fastener such as a bolt or a screw is disposed in the mounting hole and the corresponding connecting hole 312, so that the first connecting member 202 is fixedly connected with the first volute 31.

In some embodiments, the first connecting member 202 is detachably connected to the second connecting member 201, the first connecting member 202 is provided with a third protruding portion 2024, the third protruding portion 2024 and the shielding portion 2011 are respectively provided with mounting holes, and fasteners such as bolts or screws are disposed in the mounting holes of the third protruding portion 2024 and the shielding portion 2011 to fixedly connect the third protruding portion 2024 and the shielding portion 2011.

The first protruding portion 2022 is in contact with the first scroll casing 31 at one end of the casing 1 in the longitudinal direction, and the first protruding portion 2022 is in contact with the shielding portion 2011 at the other end of the casing 1 in the longitudinal direction.

In other embodiments, the fan shaft 106 is provided with a rotating portion 107, and the rotating portion 107 is disposed in the first cavity 2021 and can rotate relative to the first cavity 2021 to support the fan shaft 106 to rotate, so as to increase the stability of the fresh air fan 10 during operation; it should be noted that, the first cavity 2021 is provided with a positioning portion 2025, the positioning portion 2025 is disposed near the opening of the first cavity 2021, and the positioning portion 2025 is matched with the rotating portion 107 to position the installation position of the rotating portion 107 in the first cavity 2021.

Because the driving motor 5 drives the heat exchange fan 9 and the fresh air fan 10 to run simultaneously, the fresh air fan 10 cannot stop working independently, so that the fresh air function cannot be closed when the hanging type fresh air conditioner indoor unit works, therefore, the hanging type fresh air conditioner indoor unit is provided with the switch assembly 36 at the fresh air inlet 37, and the switch assembly 36 is utilized to open or close the fresh air inlet 37 so as to control whether the outdoor fresh air is introduced into the purifying chamber 331, thereby controlling the opening and closing of the fresh air function.

When the indoor unit of the hanging type fresh air conditioner works, when the fresh air function needs to be closed, the fresh air inlet 37 is closed, so that the outdoor fresh air can be prevented from being introduced into the purifying chamber 331, and the outdoor fresh air is prevented from flowing indoors from the fresh air outlet 35; when the fresh air function is required to be started, the fresh air inlet 37 is opened, so that outdoor fresh air can be introduced into the purifying chamber 331 from the fresh air inlet 37, and the outdoor fresh air flows into the room from the fresh air outlet 35. It should be noted that, the switch assembly 36 closes the fresh air inlet 37 to prevent the fresh air from flowing backward to the room when the indoor unit of the hanging fresh air conditioner is closed, so that the noise and the wind sense of the indoor air when the fresh air function is not opened are reduced, and the use experience of users is improved.

Specifically, as shown in fig. 12, the switch assembly 36 includes a shutter 361, a shutter motor 363, a gear and a rack 362, the shutter 361 is provided at the fresh air outlet 35 in a retractable manner, the shutter motor 363 is mounted to the fresh air case 33, a rotation shaft of the shutter motor 363 is connected with the gear, the shutter 361 is provided with the rack 362, and the gear is engaged with the rack 362.

When the fresh air function is started, the baffle motor 363 drives the gear drive rack 362 to move, and then drives the baffle 361 to linearly move so as to open the fresh air inlet 37, so that outdoor fresh air can enter the room; when the fresh air function is closed, the baffle motor 363 drives the gear drive rack 362 to move, and the baffle 361 moves linearly to close the fresh air inlet 37, thereby preventing outdoor fresh air from entering the room.

It should be noted that, when the baffle 361 closes the fresh air inlet 37, the fresh air can be prevented from flowing backward to the room when the indoor unit of the hanging fresh air conditioner is closed, so that the noise and the wind sense of the indoor air when the fresh air function is not opened are reduced, and the use experience of users is improved.

The installation accuracy of the fresh air fan 10 in the indoor unit of the hanging type fresh air conditioner is high, and the deviation between the actual value and the theoretical value of the gap between the fresh air fan 10 and the first volute 31 is small, so that the noise transferred to the room is small and the fresh air volume is large when the indoor unit of the hanging type fresh air conditioner works. The hanging type fresh air conditioner indoor unit is fixedly connected with the first volute 31 through the connecting piece 20 and is connected with the fresh air fan 10 in a relatively rotatable manner, so that the actual value and the theoretical value of the gap between the fresh air fan 10 and the inner wall of the first volute 31 have smaller errors, and the installation accuracy of the fresh air fan 10 in the fresh air cavity 321 is ensured; and the connection member 20 defines a connection member through cavity so that the connection shaft passes through the connection member through cavity to be connected with the fresh air fan 10 and drive the fresh air fan 10 to operate; through setting up rotation part 107 at the connecting axle, locate rotation part 107 in the connecting piece leads to the chamber to support the connecting axle rotation, increase the stationarity in the new trend fan 10 operation in-process.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a machine in hanging new trend air conditioning which characterized in that includes:

The shell at least comprises a shell air inlet and a shell air outlet, and the shell air inlet and the shell air outlet extend along the length direction of the shell respectively; the shell air inlet is formed in the top of the shell, and the shell air outlet is formed in the front side of the shell and close to the bottom of the shell;

the heat exchanger is arranged in the shell;

The heat exchange fan is arranged in the shell and is positioned below the heat exchanger; the heat exchange fan extends along the length direction of the shell; the heat exchange fan operates to introduce indoor air into the shell from the shell air inlet, and the indoor air flows into the room from the shell air outlet after heat exchange of the heat exchanger;

The preformed hole is formed in the side wall, facing the heat exchange fan, of the fresh air volute, and the preformed hole is communicated with the inside of the fresh air volute;

The connecting shaft is coaxially arranged with the heat exchange fan, is connected with the fresh air fan, and penetrates through the reserved hole to be connected with one end, far away from the driving motor, of the heat exchange fan;

2. The indoor unit of claim 1, wherein the connecting cavity is provided with a movable member, a gap is formed between an outer peripheral wall of one end of the connecting member extending into the connecting cavity and an inner wall of the connecting cavity, the movable member is disposed in the gap, and the movable member contacts with the connecting member and the inner wall of the connecting cavity, so that the connecting member is rotatably connected with the fresh air fan.

3. The indoor unit of a hanging fresh air conditioner according to claim 2, wherein the connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the side wall of the fresh air volute provided with the reserved hole, and one end of the first connecting piece far away from the reserved hole is connected with the second connecting piece; one end of the second connecting piece far away from the first connecting piece stretches into the connecting cavity and contacts with the movable piece; the connecting piece through cavity penetrates through the first connecting piece and the second connecting piece along the axial direction of the connecting shaft.

4. The indoor unit of claim 3, wherein the first connector defines a first cavity extending axially of the connecting shaft and communicating with the preformed hole; the second connector defines a second cavity that communicates with the first cavity to collectively form the connector through cavity.

5. The indoor unit of claim 4, wherein an end of the first connector remote from the preformed hole extends into the second cavity.

6. The indoor unit of claim 4, wherein the second connector has a contact portion and a shielding portion, the contact portion and the shielding portion together defining the second cavity; the contact part stretches into the connecting cavity and contacts with the movable piece; the shielding part is positioned at the opening of the connecting cavity to close the opening of the connecting cavity; one side of the shielding part, which is away from the second cavity, is connected with the first connecting piece.

7. The indoor unit of claim 4, wherein the connection shaft is provided with a rotating portion, and the rotating portion is located in the first cavity and can rotate relative to the inner wall of the first cavity.

8. The indoor unit of claim 1, wherein the connecting shaft comprises a driving shaft and a fan shaft, the driving shaft is connected to one end of the heat exchange fan away from the driving motor, the fan shaft is arranged in the connecting cavity and connected to the fresh air fan, and the fan shaft passes through the connecting piece through cavity and the reserved hole and is connected with the driving shaft.

9. The indoor unit of claim 8, wherein the fan shaft is connected to a coupling at an end thereof remote from the fresh air fan and is connected to the driving shaft through the coupling.

10. The utility model provides a machine in hanging new trend air conditioning which characterized in that includes:

the heat exchanger is arranged in the shell;

The connecting piece is positioned in the fresh air volute and is connected with the side wall of the reserved hole formed in the fresh air volute, the other end of the connecting piece in the length direction of the casing extends into the connecting cavity, the connecting piece is limited to form a connecting piece through cavity for the connecting shaft to pass through, and the connecting piece through cavity is communicated with the reserved hole and is correspondingly arranged;