CN220689203U

CN220689203U - Hanging fresh air conditioner indoor unit

Info

Publication number: CN220689203U
Application number: CN202322100300.4U
Authority: CN
Inventors: 寇福凯; 张江; 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: 2024-03-29
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 driving motor and a fresh air module; the heat exchange fan and the driving motor are respectively arranged in the shell, and the driving motor is connected with the heat exchange fan; the fresh air module comprises a fresh air volute and a fresh air fan, and the fresh air fan is arranged in the fresh air volute and is connected with the heat exchange fan through a connecting shaft; the fresh air volute is provided with a preformed hole for the connecting shaft to pass through; the connecting shaft is connected with a bearing for supporting the connecting shaft to rotate; the fresh air volute is provided with a volute connecting part, the volute connecting part is positioned at the reserved hole and is provided with a bearing through cavity, and the bearing through cavity is communicated with the inside of the fresh air volute; the two end openings of the bearing through cavity are correspondingly arranged towards the fresh air fan and the heat exchange fan; the bearing is positioned in the bearing through cavity and is abutted with the inner wall of the bearing through cavity. According to the hanging type fresh air conditioner indoor unit, outdoor fresh air leaked from a gap between the connecting shaft and the reserved hole is introduced into the through cavity of the bearing, and the through cavity of the bearing is sealed by the bearing, so that the outdoor fresh air is prevented from being leaked.

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 so as to purify outdoor oxygen-enriched air and then introduce the purified air into a room, thereby realizing the ventilation function between indoor air and outdoor air. The fresh air module generally comprises a fresh air fan and a fresh air volute for containing the fresh air fan, and a proper gap is needed between the fresh air fan and the inner wall of the fresh air volute so as to reduce noise of the fresh air module and enable the fresh air module to have larger fresh air quantity.

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. Wherein, a fresh air volute for installing a fresh air fan is provided with a preformed hole, so that a motor shaft or a connecting shaft of a driving motor can penetrate through the preformed hole to be connected with the fresh air fan.

Because the motor shaft or the connecting shaft of the driving motor is required to be provided with a positioning component for positioning the installation position of the fresh air fan, the current positioning component is usually connected with the motor shaft or the driving shaft into a whole and then passes through the preformed hole together to be arranged in the fresh air volute, the preformed hole has larger size, and therefore, when the motor shaft or the driving shaft passes through the preformed hole, a gap is generated between the motor shaft or the driving shaft and the inner edge of the preformed hole; and a certain safety gap is reserved between the motor shaft or the connecting shaft and the inner edge of the reserved hole so as to ensure that the motor shaft or the connecting shaft and the fresh air volute rotate relatively; in addition, due to the influence of other factors, a gap exists between the motor shaft or the connecting shaft of the driving motor and the inner edge of the reserved hole when the motor shaft or the connecting shaft passes through the reserved hole, when the fresh air function is started, outdoor fresh air in the fresh air volute is easy to leak from the gap, condensation is easy to occur around the reserved hole and on the motor shaft or the connecting shaft, the product quality is seriously influenced, and market user complaints are caused.

Disclosure of Invention

Aiming at the defects existing in the related art, the utility model provides a hanging type fresh air conditioner indoor unit, so as to prevent outdoor fresh air in a fresh air volute from leaking from a gap between a connecting shaft and a reserved hole.

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 connecting shaft is coaxially arranged with the heat exchange fan, and two axial ends of the connecting shaft are correspondingly connected with the fresh air fan and the driving motor;

a bearing member coupled to the connection shaft for supporting the connection shaft to rotate;

the volute connecting part is arranged on the fresh air volute; the volute connecting part is provided with an installation through cavity extending along the axial direction of the connecting shaft;

the connecting shaft passes through the mounting through cavity, and the bearing component is positioned in the mounting through cavity; the periphery of the bearing component is abutted with the inner wall of the installation through cavity so as to seal the installation through cavity.

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 channel for communicating the indoor with the outdoor is formed, so that the outdoor fresh air is led into the indoor from the outdoor under the action of the fresh air fan; the fresh air fan and the heat exchange fan are designed to share the same driving motor, so that the fresh air fan and the heat exchange fan can synchronously run, one driving motor can be saved, and the whole structure can be 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 volute connecting part is arranged on the fresh air volute, the volute connecting part is used for limiting and forming a mounting through cavity, the mounting through cavity is communicated with the fresh air cavity, and the bearing component for supporting the rotation of the connecting shaft is arranged in the mounting through cavity, so that a gap formed by the bearing component and the fresh air volute when the connecting shaft passes through the fresh air volute in a sealing manner can be utilized, outdoor fresh air in the fresh air volute is prevented from leaking, and the working reliability and safety of the indoor unit of the hanging type fresh air conditioner are improved; and the mounting seat for mounting the bearing components is omitted, the number of components of the indoor unit is reduced, and the indoor unit is convenient to assemble.

In some of these embodiments, the volute connection is provided with a stop located at the opening of the mounting through cavity towards the heat exchange fan for preventing the bearing component from being disengaged from the mounting through cavity.

In some embodiments, the volute connecting part is provided with a connecting table, and the connecting table is positioned in the installation through cavity and circumferentially arranged along the inner wall of the installation through cavity; the bearing component is provided with a connecting block, the connecting block is positioned at the periphery of the bearing component and is arranged along the circumference of the bearing component, and the connecting block is abutted to the connecting table so as to seal and install the through cavity.

In some of these embodiments, the connection block inner diameter dimension gradually decreases from its direction of approach to the heat exchange fan along the direction in which the mounting through cavity extends.

In some embodiments, the volute connecting part is provided with a positioning block, and the positioning block is positioned in the mounting through cavity; the bearing is provided with a positioning groove which is arranged corresponding to the positioning block, and the positioning groove is positioned at the periphery of the bearing part; the positioning groove is arranged in the positioning block to position the mounting position of the bearing part in the mounting through cavity.

In some of these embodiments, the volute connection extends from inside the fresh air volute to outside the fresh air volute, the opening of the installation through cavity towards the fresh air fan is located inside the fresh air volute, and the opening of the installation through cavity towards the heat exchange fan is located outside the fresh air volute.

In some of these embodiments, the bearing member has a buffer rib provided on its outer periphery, the buffer rib protruding from the outer peripheral wall of the bearing member and abutting against the inner wall of the mounting through cavity.

In some of these embodiments, the bearing member is provided with a bearing through cavity through which the connecting shaft passes, the bearing through cavity extending along the length of the housing.

In some of these embodiments, the bearing component comprises a bearing housing and bearing beads, the mounting through cavity being disposed through the bearing housing and bearing beads; the bearing sleeve is internally provided with a mounting groove which is communicated with the mounting through cavity and is arranged close to the heat exchange fan; the bearing beads are arranged in the mounting groove.

Besides, the utility model also provides a hanging fresh air conditioner indoor unit, which comprises:

the heat exchanger is arranged in the shell;

a driving motor mounted to the housing; the driving motor drives the heat exchange fan and the fresh air fan to synchronously operate; the driving motor 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, and the second motor shaft is connected with the fresh air fan;

a bearing member coupled to the second motor shaft for supporting the second motor shaft to rotate;

the volute connecting part is arranged on the fresh air volute; the volute connecting part is provided with a mounting through cavity extending along the axial direction of the second motor shaft;

the second motor shaft passes through the mounting through cavity, and the bearing component is positioned in the mounting through cavity; the periphery of the bearing component is abutted with the inner wall of the installation through cavity so as to seal the installation through cavity.

Based on the technical scheme, the indoor unit of the hanging type fresh air conditioner is characterized in that the volute connecting part is arranged on the fresh air volute, the volute connecting part is used for limiting and forming the installation through cavity, the installation through cavity is communicated with the fresh air cavity, and the bearing component for supporting the rotation of the connecting shaft is arranged in the installation through cavity, so that the gap formed between the bearing component and the fresh air volute when the connecting shaft passes through the fresh air volute can be sealed, outdoor fresh air in the fresh air volute is prevented from leaking, and the working reliability and safety of the indoor unit of the hanging type fresh air conditioner are improved; and the mounting seat for mounting the bearing components is omitted, the number of components of the indoor unit is reduced, and the indoor unit is convenient to assemble.

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 diagram of a structure in which a fresh air module, a heat exchange fan and a driving motor are assembled inside a casing in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 3 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. 4 is an enlarged view of the structure of FIG. 3 at A;

FIG. 5 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. 6 is an enlarged view of the structure at B in FIG. 5;

FIG. 7 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. 8 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. 9 is a schematic diagram of a fan of a hanging type indoor unit of a fresh air conditioner according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a structure of a fan at another angle in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 11 is a schematic view of a structure of a fan and a volute assembly in an embodiment of the indoor unit of a hanging-type fresh air conditioner;

FIG. 12 is a cross-sectional view of a fresh air fan in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 13 is a schematic view of a structure of a fan connected to a heat exchange fan in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 14 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. 15 is a schematic view of a structure of a new air module assembly switch assembly in an embodiment of a hanging type fresh air conditioner indoor unit according to the present utility model;

FIG. 16 is a schematic view of a bearing in an embodiment of a hanging fresh air conditioner indoor unit according to the present utility model;

FIG. 17 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. 18 is a cross-sectional view of a bearing housing in one embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 19 is a schematic view of the assembly of the first scroll and the bearing in one embodiment of the indoor unit of the hanging-type fresh air conditioner;

FIG. 20 is a cross-sectional view of a first scroll and bearing assembly of an embodiment of a hanging fresh air conditioner indoor unit of the present utility model;

FIG. 21 is a schematic view of the structure of a first scroll casing 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 configuration of a first scroll at another angle in an embodiment of a hanging-type fresh air conditioner indoor unit according to the present utility model;

fig. 23 is a cross-sectional view of a first scroll casing in an embodiment of a hanging type fresh air conditioner indoor unit of the present utility model.

In the drawing the view of the figure,

1. a housing; 2. an air deflector; 3. fresh air volute; 4. a heat exchange fan; 5. a driving motor; 6. a bearing member; 7. a connecting shaft; 8. a fresh air fan;

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;

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. installing a through cavity; 312. a volute connection; 313. a positioning block; 314. a stop block; 315. a connection station;

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

331. a clean room;

361. a baffle; 362. a rack; 363. a baffle motor;

41. a fan shaft sleeve;

61. a bearing sleeve; 62. bearing beads;

611. a connecting block; 612. a positioning groove; 613. buffering the ribs; 614. the bearing is communicated with the cavity; 615. a mounting groove;

81. a first fan blade; 82. a second fan blade; 83. a hub; 84. a connecting column;

831. a deflector aperture; 841. and the shaft hole.

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.

Fig. 1-23 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, a fresh air module, a heat exchange fan 4, a driving motor 5, a connecting shaft 7 and a bearing component 6.

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 1; the casing air outlet 15 is positioned at the front lower side of the casing 1, the air deflector 2 is arranged at the casing air outlet 15, and the air deflector 2 is connected with the casing 1 in an openable manner so as to open or close the casing air outlet 15.

The shell 1 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.

The heat exchanger is arranged on the shell and positioned 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 requirements of users; the heat exchanger is disposed near the housing air inlet 11. The air conditioner may be cold air, hot air, or even normal temperature air.

As shown in fig. 2, the heat exchange fan 4 is installed in the casing 1 and is located in the heat exchange air duct, and the heat exchange fan 4 is located below the heat exchanger, the axial direction of the heat exchange fan 4 extends along the length direction of the casing, and indoor air is introduced into the heat exchange air duct through the operation of the heat exchange fan 4, and after the heat exchange is performed by the heat exchanger to form air-conditioning air, the air-conditioning air flows into the room from the air outlet 15 of the casing. The heat exchange fan 4 is a cross flow fan.

As shown in fig. 2 and 3, 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 8, wherein the fresh air volute 3 and the heat exchange fan 4 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 8 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; through the operation of the fresh air fan 8, 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 port 12.

In the above-mentioned hanging fresh air conditioner indoor unit, the driving motor 5 is configured as one for driving the heat exchange fan 4 and the fresh air fan 8 to run synchronously. The drive 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 4, and the heat exchange fan 4 is connected with the fresh air fan 8 through the connecting shaft 7, so that the driving motor 5 can drive the heat exchange fan 4 and the fresh air fan 8 to synchronously rotate. When driving motor 5 is biax motor, driving motor 5 is including first motor shaft and second motor shaft, and first motor shaft and second motor shaft coaxial line set up, and first motor shaft is connected with heat exchange fan 4, and the second motor shaft is connected with fresh air fan 8 to make driving motor 5 can drive heat exchange fan 4 and fresh air fan 8 synchronous rotation.

When the driving motor 5 is a single-shaft motor, the driving motor 5 is located at one end of the heat exchange fan 4 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 4 and the fresh air fan 8 along the length direction of the casing 1.

In order to install the fresh air volute 3, the fresh air fan 8 and the driving motor 5, as shown in fig. 5, the casing 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; the first installation cavity 14 is used for installing the heat exchange fan 4; 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. 5 and 6, 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.

As shown in fig. 7 and 8, 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 8 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.

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.

As shown in fig. 9 to 14, the fresh air fan 8 is a centrifugal fan, and the fresh air fan 8 is used for introducing indoor fresh air into a room; the fresh air fan 8 is installed in the fresh air cavity 321, and the fresh air fan 8 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.

As shown in fig. 9 and 10, the fresh air fan 8 includes a hub 83, a first fan blade 81, and a second fan blade 82; the first fan blade 81 is fixedly connected with the hub 83; the second blade 82 is fixedly connected to the side of the hub 83 facing away from the first blade 81.

The first blades 81 are arranged in plural, and the plural first blades 81 are arranged at intervals in sequence in the circumferential direction of the hub 83; the second sectors 82 are also arranged in plural, and the second sectors 82 are arranged at intervals in sequence along the circumferential direction of the hub 83; the second blades 82 and the first blades 81 are arranged offset from each other in the circumferential direction of the hub 83.

As shown in fig. 10, the hub 83 is provided with a diversion hole 831, and the diversion hole 831 is provided through the hub 83 along the length direction of the casing 1, so that both sides of the hub 83 are communicated, that is, the area where the first fan blade 81 is located is communicated with the area where the second fan blade 82 is located, to prevent the hub 83 from obstructing the flow of outdoor fresh air.

After part of outdoor fresh air entering the fresh air cavity 321 from the purifying chamber 331 enters the area where the first fan blade 81 is located, the fresh air directly passes through the fresh air outlet 35 and flows into the room from the fresh air port 12; and a part of outdoor fresh air enters the area where the first fan blade 81 is located, enters the area where the second fan blade 82 is located through the diversion holes 831, passes through the fresh air outlet 35, and flows into the room from the fresh air port 12.

In some embodiments, as shown in fig. 10, a center portion of the hub 83 is provided with a shaft hole 841, and the shaft hole 841 is provided corresponding to the preformed hole; the connection shaft 7 or the second motor shaft is provided in the shaft hole 841 through a preformed hole so that the connection shaft 7 or the second motor shaft is connected with the hub 83.

In other embodiments, as shown in fig. 9, the hub 83 is provided with a connection post 84, the connection post 84 is located at a central portion of the hub 83, and an end of the connection post 84 away from the hub 83 extends in a direction approaching the second fan 82; the shaft hole 841 is provided in the connection post 84 and penetrates the connection post 84 along the extending direction of the connection post 84.

Because the fresh air fan 8 is disposed in the fresh air cavity 321, in order to enable the connecting shaft 7 or the second motor shaft to be connected with the fresh air fan 8, the first volute 31 is usually provided with a preformed hole, and an opening of the preformed hole extends along the length direction of the casing 1, so that the connecting shaft 7 or the second motor shaft can extend into the fresh air cavity 321 through the preformed hole to be connected with the fresh air fan 8.

Since the connection shaft 7 or the second motor shaft rotates when the indoor unit of the air conditioner is operated, the connection shaft 7 or the second motor shaft is generally connected with the bearing part 6, and the bearing part 6 is used for supporting the connection shaft 7 or the second motor shaft to rotate so as to increase the stability when the connection shaft 7 or the second motor shaft rotates.

As shown in fig. 7, the bearing member 6 is sleeved on the outer circumference of the connection shaft 7 or the second motor shaft, and is used for supporting the connection shaft 7 or the second motor shaft to rotate. The bearing part 6 is provided with a bearing through cavity 614, the bearing through cavity 614 extends along the length direction of the shell 1, and openings at two ends of the bearing through cavity 614 are correspondingly arranged towards the fresh air fan 8 and the heat exchange fan 4; the connecting shaft 7 or the second motor shaft is arranged through the bearing through cavity 614.

Specifically, as shown in fig. 17 to 19, the bearing member 6 includes a bearing housing 61 and a bearing bead 62, and a bearing through cavity 614 is provided through the bearing housing 61 and the bearing bead 62; the connecting shaft 7 or the second motor shaft is connected to the bearing beads 62.

The bearing housing 61 is provided with a mounting groove 615, and the mounting groove 615 is communicated with the bearing through cavity 614 and is arranged close to the heat exchange fan 4; the bearing beads 62 are disposed within the mounting slots 615.

Because the second motor shaft or the connecting shaft 7 rotates synchronously when the fresh air fan 8 and the heat exchange fan 4 are operated, when the second motor shaft or the connecting shaft 7 passes through the preformed hole, a gap needs to be reserved between the second motor shaft and the inner edge of the preformed hole or between the connecting shaft 7 and the inner edge of the preformed hole so as to prevent the second motor shaft or the connecting shaft 7 from being unable to rotate due to interference fit of the second motor shaft or the connecting shaft, however, the gap between the inner edge of the preformed hole and the second motor shaft or the connecting shaft 7 can cause leakage of outdoor fresh air in the fresh air cavity 321 from the connecting gap, so that condensation is generated around the preformed hole and on the connecting shaft 7, and the product quality is affected.

Furthermore, the second motor shaft or the connecting shaft 7 is required to be provided with a positioning member for positioning the installation position of the fresh air fan 8. Since the positioning member is generally larger in size than the second motor shaft or the connecting shaft 7, a large gap is provided between the second motor shaft or the connecting shaft 7 and the preformed hole. Therefore, the fresh air in the fresh air chamber 321 is easy to leak from the gap.

As shown in fig. 11, the hanging fresh air conditioner indoor unit is configured such that the bearing member 6 is mounted on the fresh air scroll 3, and a gap between the inner edge of the preformed hole and the second motor shaft or the connecting shaft 7 is sealed by the bearing member 6, so that the outdoor fresh air leaking from the gap between the inner edge of the preformed hole and the second motor shaft or the connecting shaft 7 is introduced into the mounting through cavity 311.

In this embodiment, the driving motor 5 is taken as an example of a single-shaft motor, and the hanging type fresh air conditioner indoor unit is described in detail. In the present embodiment, the motor shaft of the driving motor 5 is connected with the heat exchange fan 4, 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 mounting chamber 13, the first mounting chamber 14 and the third mounting chamber 16 are arranged in this order from left to right along the length direction of the cabinet.

Specifically, a motor shaft of the driving motor 5 is connected with one end of the heat exchange fan 4 along the length direction of the shell, and one end of the heat exchange fan 4 away from the driving motor 5 is connected with a connecting shaft 7 and is connected with a fresh air fan 8 through the connecting shaft 7; wherein the motor shaft of the driving motor 5, the heat exchange fan 4 and the connecting shaft 7 are coaxially arranged.

As shown in fig. 14, a fan shaft sleeve 41 is arranged at one end of the heat exchange fan 4 connected with the driving motor 5, the fan shaft sleeve 41 is provided with a mounting hole, and a motor shaft of the driving motor 5 stretches into the mounting hole so as to connect the driving motor 5 with the heat exchange fan 4; one end of the heat exchange fan 4 far away from the driving motor 5 is connected with a connecting shaft 7 and is connected with a fresh air fan 8 through the connecting shaft 7, so that the heat exchange fan 4 and the fresh air fan 8 run simultaneously.

As shown in fig. 19, the scroll connecting portion 312 is provided at a side of the first scroll 31 facing the heat exchange fan 4 and at the preformed hole; the volute connecting portion 312 is provided with a mounting through cavity 311, the mounting through cavity 311 is communicated with the reserved hole, the mounting through cavity 311 is communicated with the fresh air cavity 321, and two end openings of the mounting through cavity 311 are correspondingly arranged towards the fresh air fan 8 and the heat exchange fan 4. The bearing member 6 is located in the mounting through cavity 311 and the outer periphery of the bearing housing 61 abuts against the inner wall of the mounting through cavity 311 to close the mounting through cavity 311.

The volute connecting part 312 is utilized to define a mounting through cavity 311, the mounting through cavity 311 is communicated with the reserved hole, and the connecting shaft 7 can extend into the fresh air cavity 321 through the mounting through cavity 311 to be connected with the fresh air fan 8; the bearing component 6 is arranged in the mounting through cavity 311, on one hand, the bearing component 6 can be mounted by utilizing the volute connecting part 312, a mounting seat for mounting the bearing component 6 is omitted, parts of the indoor unit of the air conditioner are reduced, and the assembly is convenient; on the other hand, the bearing component 6 can be used for sealing the mounting through cavity 311, so that condensation is prevented from generating around the reserved hole and on the connecting shaft 7.

As shown in fig. 20 to 23, the volute connecting portion 312 is provided with a stopper 314, the stopper 314 is located at an opening of the mounting through cavity 311 toward the heat exchange fan 4, and the stopper 314 cooperates with the bearing housing 61 to prevent the bearing member 6 from being separated from the mounting through cavity 311.

In some embodiments, as shown in fig. 20 and 23, the volute connecting portion 312 is provided with a connecting land 315, the connecting land 315 being located within the mounting through cavity 311 and disposed circumferentially along the mounting through cavity 311; the bearing housing 61 is provided with a connecting block 611, the connecting block 611 is located at the periphery of the bearing housing 61 and circumferentially arranged along the bearing housing 61, and the connecting block 611 is abutted to the connecting table 315, so that the bearing housing 61 is tightly assembled with the inner wall of the mounting through cavity 311, and the mounting through cavity 311 is sealed to prevent outdoor fresh air leakage and condensation.

It should be noted that, the connection platform 315 is connected to the inner wall of the installation through cavity 311, and the inner diameter of the connection platform 315 is gradually reduced along the axial direction of the installation through cavity 311 from the direction of the connection platform approaching the heat exchange fan 4, so that the closer the bearing sleeve 61 is to the heat exchange fan 4, the greater the mutual extrusion force between the bearing sleeve 61 and the inner wall of the installation through cavity 311 is, so that the installation through cavity 311 is well sealed.

In some embodiments, the volute connection 312 is provided with a locating block 313, the locating block 313 being located within the mounting through cavity 311; the bearing sleeve 61 is provided with a positioning groove 612 which is arranged corresponding to the positioning block 313, and the positioning groove 612 is positioned at the periphery of the bearing sleeve 61; the positioning block 313 is disposed in the positioning groove 612 to position the mounting position of the bearing member 6 in the mounting through cavity 311.

In some embodiments, the periphery of the bearing sleeve 61 is provided with the buffer rib 613, the buffer rib 613 protrudes out of the outer surface of the bearing sleeve 61 and is abutted against the inner wall of the installation through cavity 311, so that the bearing sleeve 61 and the inner wall of the installation through cavity 311 can be mutually extruded, the bearing sleeve 61 is abutted against the inner wall of the installation through cavity 311, the firmness of installation of the bearing sleeve 61 in the installation through cavity 311 is improved, vibration impact between the first volute 31 and the connecting shaft 7 can be buffered, and vibration impact generated in the running process of the fresh air fan 8 and the heat exchange fan 4 is prevented from being transmitted to the first volute 31.

It should be noted that, the volute connecting portion 312 extends from the fresh air cavity 321 to the outside of the fresh air cavity 321, the opening of the installation through cavity 311 facing the fresh air fan 8 is located in the fresh air cavity 321, the opening of the installation through cavity 311 facing the heat exchange fan 4 is located in the fresh air cavity 321, and the minimum value of the value range of the inner diameter size of the opening of the installation through cavity 311 facing the fresh air fan 8 is the outer diameter size of the bearing sleeve 61; the maximum value of the range of the inner diameter dimension of the opening of the installation through cavity 311 towards the heat exchange fan 4 is the inner diameter dimension of the bearing sleeve 61, so that the bearing component 6 is installed in the installation through cavity 311 through the opening in the fresh air cavity 321.

The bearing sleeve 61 is made of soft materials such as rubber or silica gel, so that the bearing beads 62 can be conveniently installed in the installation grooves 615, the bearing sleeve 61 can be conveniently installed in the installation through cavity 311, and vibration generated in the running process of the heat exchange fan 4 and the fresh air fan 8 can be buffered and absorbed.

As shown in fig. 4 and 6, 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 volute connecting portion 312 is disposed in the through slot 181, so that the second mounting portion 18 supports and limits the volute connecting portion 312.

Because the driving motor 5 drives the heat exchange fan 4 and the fresh air fan 8 simultaneously, the fresh air fan 8 cannot stop working independently, so that the fresh air function cannot be closed when the indoor unit of the hanging type fresh air conditioner works, as shown in fig. 16, the indoor unit of the hanging type fresh air conditioner 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.

Specifically, as shown in fig. 15, 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 working principle of the hanging type fresh air conditioner indoor unit is as follows: when the fresh air function is required to be closed, the drive motor 5 drives the fresh air fan 8 and the heat exchange fan 4 to operate, 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 and prevent outdoor fresh air from entering the purifying chamber 331; when the fresh air function needs to be started, the baffle motor 363 drives the gear drive rack 362 to move, so that the baffle 361 is driven to move linearly to open the fresh air inlet 37, so that outdoor fresh air enters the purification chamber 331, enters the fresh air cavity 321 after being purified by the purification module 34, and flows into the room from the fresh air outlet 35; fresh air outside the inner chamber of the fresh air cavity 321 enters the mounting through cavity 311 from a gap between the connecting shaft 7 and the inner wall of the mounting through cavity 311, and as the bearing component 6 is mounted in the mounting through cavity 311 and is abutted against the inner wall of the mounting through cavity 311, the bearing component 6 can seal the mounting through cavity 311, so that outdoor fresh air is prevented from leaking from the mounting through cavity 311.

The hanging type fresh air conditioner indoor unit is characterized in that the volute connecting part 312 is arranged on the fresh air volute 3, the volute connecting part 312 is used for limiting the installation through cavity 311, and the installation through cavity 311 is communicated with the fresh air cavity 321, so that the connecting shaft 7 can penetrate through the installation through cavity 311 and extend into the fresh air cavity 321 to be connected with the fresh air fan 8, and the same driving motor 5 is used for driving the fresh air fan 8 and the heat exchange fan 4 to synchronously rotate; the bearing component 6 is arranged in the mounting through cavity 311, the bearing component 6 is arranged by the volute connecting part 312, and a mounting seat for mounting the bearing component 6 is omitted, so that the number of components of the indoor unit of the hanging type fresh air conditioner is reduced, and the indoor unit of the hanging type fresh air conditioner is convenient to assemble; meanwhile, the bearing component 6 can seal the gap between the connecting shaft 7 and the reserved hole, so that fresh air outside the inner chamber of the fresh air cavity 321 is prevented from leaking through the gap between the connecting shaft 7 and the reserved hole, and the working reliability and safety of the indoor unit of the hanging type fresh air conditioner are improved.

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. However, 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;

a bearing member coupled to the coupling shaft for supporting the coupling shaft to rotate;

2. The indoor unit of claim 1, wherein the scroll housing connection portion is provided with a stopper, and the stopper is located at an opening of the installation through cavity facing the heat exchange fan, and is used for preventing the bearing component from being separated from the installation through cavity.

3. The indoor unit of claim 1, wherein the volute connecting portion is provided with a connecting table, and the connecting table is located in the installation through cavity and circumferentially arranged along the inner wall of the installation through cavity; the bearing component is provided with a connecting block, the connecting block is positioned on the periphery of the bearing component and arranged along the circumference of the bearing component, and the connecting block is abutted to the connecting table so as to seal the installation through cavity.

4. The indoor unit of claim 3, wherein the inner diameter of the connection table is gradually reduced from a direction thereof adjacent to the heat exchange fan along the extension direction of the installation through cavity.

5. The indoor unit of claim 1, wherein the volute connection is provided with a positioning block, and the positioning block is positioned in the installation through cavity; the bearing is provided with a positioning groove which is arranged corresponding to the positioning block, and the positioning groove is positioned at the periphery of the bearing part; the positioning groove is arranged in the positioning block to position the mounting position of the bearing part in the mounting through cavity.

6. The indoor unit of claim 1, wherein the scroll connection extends from inside the fresh air scroll to outside the fresh air scroll, an opening of the installation through cavity toward the fresh air fan is located inside the fresh air scroll, and an opening of the installation through cavity toward the heat exchange fan is located outside the fresh air scroll.

7. The indoor unit of claim 1, wherein the bearing member has a buffer rib on its outer periphery, and the buffer rib protrudes from the outer peripheral wall of the bearing member and abuts against the inner wall of the installation through cavity.

8. The indoor unit of claim 1, wherein the bearing member is provided with a bearing through cavity through which the connection shaft passes, and the bearing through cavity extends along the length direction of the casing.

9. The indoor unit of claim 8, wherein the bearing component comprises a bearing sleeve and a bearing bead, and the mounting through cavity is disposed through the bearing sleeve and the bearing bead; the bearing sleeve is internally provided with a mounting groove which is communicated with the mounting through cavity and is arranged close to the heat exchange fan; the bearing beads are arranged in the mounting groove.

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 volute connecting part is arranged on the fresh air volute; the volute connecting part is provided with an installation through cavity extending along the axial direction of the second motor shaft;

the second motor shaft passes through the mounting through cavity, and the bearing component is positioned in the mounting through cavity;

the periphery of the bearing component is abutted with the inner wall of the installation through cavity so as to seal the installation through cavity.