CN222103765U

CN222103765U - Wall mounted air conditioner

Info

Publication number: CN222103765U
Application number: CN202420831570.4U
Authority: CN
Inventors: 王全亮; 韩烬阳
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2024-04-22
Filing date: 2024-04-22
Publication date: 2024-12-03
Anticipated expiration: 2034-04-22

Abstract

The utility model discloses a hanging type air conditioner, and belongs to the technical field of air conditioners. The hanging type air conditioner comprises a shell, an indoor heat exchanger, a heat exchange fan, a fresh air volute, a fresh air fan, a driving device, a driving gear and a driven gear, wherein the first inner cavity and the second inner cavity are formed in the shell along the length direction, an air conditioner air inlet and an air conditioner air outlet are formed in the shell, the indoor heat exchanger and the heat exchange fan are arranged in the first inner cavity, the fresh air volute is arranged in the second inner cavity, the fresh air fan is arranged in the fresh air volute, the driving device is arranged in the shell and connected with one end, far away from the fresh air fan, of the heat exchange fan, the driving gear is fixedly connected with one end, close to the fresh air fan, of the heat exchange fan through a power input shaft, and the driven gear is fixedly connected with one end, close to the heat exchange fan, of the fresh air fan through a power output shaft. The driven gear is meshed with the driving gear, so that the power input shaft drives the power output shaft to rotate, the heat exchange fan and the fresh air fan are arranged in a non-coaxial mode, the position of the fresh air volute can be flexibly adjusted, and the maximum air channel profile can be obtained in a limited space.

Description

Hanging air conditioner

Technical Field

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

Background

At present, in some indoor units of a hanging type fresh air conditioner, a fresh air fan and a heat exchange fan are designed to be driven to operate through the same driving device, wherein the same driving device is connected with the heat exchange fan, the heat exchange fan is connected with the fresh air fan through a connecting shaft, and a 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.

In the prior art, a fresh air fan and a heat exchange fan are coaxially connected in series by using a connecting shaft, so that the driving of a single driving device is realized. However, because the difference between the air duct of the heat exchange fan and the air duct of the fresh air fan is large, the layout of the air duct of the fresh air fan is limited after the two are coaxial, and the size of the whole machine needs to be increased. When needing great fresh air volume, can make whole rotational speed too high, and then can lead to the air conditioner noise to surpass the threshold value, influence user experience.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose,

The utility model provides a hanging air conditioner, comprising:

the air conditioner comprises a shell, a first air conditioner air inlet, a second air conditioner air outlet and a first air conditioner air inlet, wherein a first inner cavity and a second inner cavity are formed in the shell along the length direction;

The indoor heat exchanger is arranged in the first inner cavity and used for carrying out heat exchange on air in the shell;

The indoor airflow enters the shell through the air conditioner air inlet under the action of the heat exchange fan, exchanges heat through the indoor heat exchanger and is output to the indoor through the air conditioner air outlet;

the fresh air volute is arranged in the second inner cavity, and a fresh air inlet and a fresh air outlet are formed in the fresh air volute;

The fresh air fan is arranged in the fresh air volute, and runs to enable outdoor fresh air to enter the fresh air volute from the fresh air inlet and flow indoors from the fresh air outlet;

The driving device is arranged in the shell and connected with one end, far away from the fresh air fan, of the heat exchange fan, and is used for driving the heat exchange fan to operate;

The driving gear is fixedly connected with one end, close to the fresh air fan, of the heat exchange fan through a power input shaft;

the driven gear is meshed with the driving gear, so that the heat exchange fan and the fresh air fan are arranged in a non-coaxial mode;

The driven gear is fixedly connected to one end, close to the heat exchange fan, of the fresh air fan through the power output shaft, so that the power input shaft drives the power output shaft to rotate.

In this technical scheme, through a drive arrangement simultaneous drive new trend fan and air conditioning fan operation, reduce drive arrangement's quantity, reduce drive arrangement moreover and to the occupation of casing inner space to when practicing thrift economic cost, can also reduce the size of air conditioning indoor set. In addition, the heat exchange fan is connected with the fresh air fan through the gear set, so that the fresh air volute is flexibly and finely adjusted in a limited space, the maximum air channel profile is obtained in the limited space, the space is reasonably utilized, the fresh air quantity is kept, and the material cost is saved.

The utility model also provides a hanging air conditioner, which comprises:

The driven gear is meshed with the driving gear and is fixedly connected with one end, close to the heat exchange fan, of the fresh air fan through a power output shaft, so that the power input shaft drives the power output shaft to rotate;

Wherein the rotational speed of the power output shaft is different from the rotational speed of the power input shaft.

In this technical scheme, through a drive arrangement simultaneous drive new trend fan and air conditioning fan operation, reduce drive arrangement's quantity, reduce drive arrangement moreover and to the occupation of casing inner space to when practicing thrift economic cost, can also reduce the size of air conditioning indoor set. In addition, the fresh air fan is connected with the heat exchange fan through the differential gear set, so that the heat exchange fan and the fresh air fan respectively run at different rotating speeds, the fresh air flow in the fresh air volute is ensured, and meanwhile, the noise of an air conditioner can be reduced.

In some embodiments, the driving gear and the driven gear are spur gears, the power input shaft and the power output shaft are arranged in parallel, and the arrangement can maximize the size of the fresh air volute in a limited shell space, so that the fresh air volume is improved.

In some embodiments, the distance between the central axis of the heat exchange fan and the central axis of the fresh air fan is not more than 40mm, and the distance is set to be not more than 40mm, so that the distance between the central axes of the two fans is prevented from being remote, and the size of the whole machine is prevented from being increased.

In some embodiments, the distance between the central axis of the heat exchange fan and the central axis of the fresh air fan is not smaller than 8mm, and the distance is set to be not smaller than 8mm, so that the influence on machining precision and transmission precision caused by too small diameter of the driven gear or the driving gear is avoided.

In some embodiments, the ratio of the number of teeth of the driving gear to the number of teeth of the driven gear is 2-3, and the setting makes the rotation speed of the fresh air fan 2-3 times that of the heat exchange fan, which is beneficial to improving ventilation efficiency, does not exceed the threshold value of noise used by an air conditioner, and improves the comfort level used by users.

In some embodiments, the diameter size of the driven gear is not smaller than 6mm, the diameter size of the driven gear is prevented from being too small, the strength of the driven gear is ensured, and meanwhile the driven gear is convenient to process.

In some embodiments, the diameter of the driving gear is larger than that of the driven gear, so that the rotating speed of the driving gear is smaller than that of the driven gear, and the requirement that the rotating speed of the fresh air fan is higher than that of the heat exchange fan can be met.

In some embodiments, the ratio of the diameter of the driven gear to the diameter of the driving gear is 1:2-1:3, and the arrangement is favorable for improving the rotating speed of the fresh air fan, so that the fresh air quantity is increased, and the ventilation efficiency is higher.

In some embodiments, a protective housing is mounted on the housing, and the protective housing covers the driving gear and the driven gear. And the gear set formed by the driving gear and the driven gear is protected by the protective shell, so that the running reliability of the air conditioner is improved.

Drawings

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

FIG. 2 is a schematic diagram of a structure in which an air deflector opens an air outlet of an air conditioner according to an embodiment of the present utility model;

FIG. 3 is a front view of one embodiment of a hanging air conditioner of the present utility model;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is a schematic view of the structure of the housing in one embodiment of the hanging air conditioner of the present utility model;

FIG. 6 is a schematic view of a base in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 7 is a schematic view of a structure in which a fresh air module and an indoor heat exchanger are assembled inside a housing in an embodiment of a hanging type air conditioner according to the present utility model;

FIG. 8 is a schematic view of a fresh air module in one embodiment of a hanging air conditioner according to the present utility model;

FIG. 9 is a schematic view of a structure of a new air module according to an embodiment of the present utility model at another view angle;

FIG. 10 is a schematic view of a structure in which a fresh air module, a heat exchange fan, and a driving device are assembled inside a housing in an embodiment of a hanging type air conditioner according to the present utility model;

FIG. 11 is an enlarged view of a portion of FIG. 10 at A;

FIG. 12 is a schematic view showing a partial structure of a fresh air module, a heat exchange fan, and a driving device assembled inside a housing in one embodiment of a hanging type air conditioner according to the present utility model;

FIG. 13 is a partial enlarged view at B in FIG. 12;

FIG. 14 is a schematic diagram of a connection between a fresh air fan and a heat exchange fan in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 15 is a schematic diagram of a connection between a fresh air module and a driven gear in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 16 is a schematic diagram of a connection between a heat exchange fan and a driving gear in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 17 is a diagram illustrating the meshing of a driven gear with a driving gear in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 18 is a schematic view of a structure in which a fresh air module, a heat exchange fan, and a protective case are assembled inside a housing in an embodiment of a hanging air conditioner according to the present utility model;

FIG. 19 is a schematic diagram of a structure in which a fresh air fan is connected with a heat exchange fan through a gear set according to an embodiment of the present utility model;

FIG. 20 is a partial exploded view of FIG. 19;

fig. 21 is a cross-sectional view of a fresh air module in one embodiment of the hanging air conditioner of the present utility model.

In the above figures, the air conditioning indoor unit 100, the casing 1, the base 11, the first partition 111, the second partition 112, the third cavity 113, the housing 12, the air conditioning inlet 13, the air conditioning outlet 14, the air deflector 15, the air inlet grille 16, the air conditioning outlet 17, the first cavity 18, the second cavity 19, the indoor heat exchanger 2, the heat exchange fan 3, the fresh air volute 4, the fresh air inlet 41, the fresh air outlet 42, the filter assembly 43, the air inlet cavity 44, the air outlet cavity 45, the fresh air fan 5, the driving device 6, the driving gear 7, the power input shaft 71, the driven gear 8, the power output shaft 81 and the protective shell 9.

Detailed Description

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the utility model can be combined with other embodiments without conflict.

In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present utility model.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The hanging type air conditioner provided by the embodiment of the utility model can have various implementation forms.

Fig. 1 to 21 are schematic embodiments of a hanging air conditioner according to the present utility model. The hanging type air conditioner comprises an air conditioner indoor unit which is arranged indoors and used for exchanging heat with the indoor environment. The hanging type air conditioner may include an air conditioner outdoor unit, which is generally disposed outdoors, for taking heat of the indoor to the outdoor.

Referring to fig. 1 to 3, in the present embodiment, an indoor unit of an air conditioner includes a housing 1. The casing 1 is installed indoors, and the casing 1 forms the overall appearance of the indoor unit of the air conditioner.

With continued reference to fig. 1, the housing 1 is arranged in a substantially rectangular parallelepiped. The housing 1 has a top end and a bottom end, and the top end of the housing 1 and the bottom end of the housing 1 are two ends which are oppositely arranged in the height direction of the housing 1. The left side of the housing 1 and the right side of the housing 1 are opposite sides in the longitudinal direction of the housing 1, and the front side of the housing 1 and the rear side of the housing 1 are opposite sides in the thickness direction of the housing 1.

Wherein, casing 1 sets up in indoor top or indoor space above, and the front side of casing 1 sets up towards the user, and the rear side of casing 1 sets up towards the wall, is suitable for with the wall connection.

The directions described herein are based on the direction in which the user faces the air conditioning indoor unit, wherein the front side is defined as the side facing the user when the air conditioning indoor unit is in use, the rear side is defined as the opposite side, and the left side and the right side are distinguished from each other in the direction in which the user faces the air conditioning indoor unit.

A heat exchange air duct is formed inside the shell 1. The heat exchange air duct is used for accommodating and fixing various components in the air conditioner indoor unit 100, and can avoid collision between foreign objects and various components in the shell 1, so that the reliability of the air conditioner indoor unit 100 in the transportation or installation process can be improved.

In some embodiments of the present application, referring to fig. 2, the housing 1 may include an air conditioner air inlet 13.

The air conditioner air inlet 13 is communicated with the heat exchange air channel, and the air conditioner air inlet 13 is used as an inlet for inflow of external air of the shell 1, so that indoor air is allowed to enter the heat exchange air channel from the air conditioner air inlet 13.

In some embodiments of the present application, referring to fig. 2, the housing 1 may include an air conditioner outlet 14.

The air conditioner air outlet 14 is communicated with the heat exchange air duct, and the air conditioner air outlet 14 is used as an outlet for heat exchange air flow in the shell 1 to flow out, so that the air flow in the heat exchange air duct can flow out from the air conditioner air outlet 14.

The air conditioner air inlet 13 may be formed at the top of the housing 1. The air-conditioning outlet 14 may be disposed at the front side of the housing 1 and near the bottom of the housing 1, i.e. the air-conditioning outlet 14 is located at the bottom of the front side of the housing 1. In this embodiment, when the indoor unit of the air conditioner works, the indoor unit 100 of the air conditioner is air-fed from the upper side and air-discharged toward the front side, so that the indoor unit of the air conditioner is convenient to set.

The air-conditioning outlet 14 may be elongated, and the air-conditioning outlet 14 may extend along the length direction of the casing 1, thereby improving the aesthetic property of the air-conditioning indoor unit 100.

With continued reference to fig. 2, in some embodiments of the application, the air conditioning indoor unit 100 may include an air deflector 15.

The air deflector 15 is rotatably connected to the housing 1 and is provided at the air outlet 14 of the air conditioner. The air deflector 15 opens or closes the air conditioner air outlet 14, and the air deflector 15 is used for guiding the flow of the heat exchange air when the air deflector 15 opens the air conditioner air outlet 14.

In some embodiments of the present application, the air conditioning indoor unit 100 may include an air inlet grill 16.

The air inlet grille 16 is arranged at the air inlet 13 of the air conditioner and is used for filtering air and preventing larger impurities from entering the heat exchange air duct.

In some embodiments of the present application, referring to fig. 4, an air conditioner indoor unit 100 may include an indoor heat exchanger 2. The indoor heat exchanger 2 extends along the length direction of the shell 1, and the indoor heat exchanger 2 is arranged in the heat exchange air duct and is used for carrying out heat exchange with the air flow in the shell 1.

In some embodiments of the present application, the air conditioning indoor unit 100 may include a heat exchange fan 3.

The heat exchange fan 3 is arranged in the heat exchange air duct, the axial direction of the heat exchange fan 3 extends along the length direction of the shell 1 and is used for driving indoor air outside the shell 1 to enter the heat exchange air duct in the shell 1 through the air inlet, and the heat exchange fan 3 drives air in the heat exchange air duct to flow along the air conditioner air inlet 13 towards the air conditioner air outlet 14.

With continued reference to fig. 4, a heat exchange fan 3 is provided below the indoor heat exchanger 2. The indoor heat exchanger 2 may be located inside the air conditioner air intake 13. The heat exchange fan 3 may be located at a side of the indoor heat exchanger 2 remote from the air inlet 13 of the air conditioner. That is, the heat exchange fan 3 is located downstream with respect to the indoor heat exchanger 2 in the air flow direction within the casing 1.

Wherein the heat exchange fan 3 is a cross flow fan.

When the air conditioner indoor unit 100 is operated, under the drive of the heat exchange fan 3, indoor air enters the heat exchange air duct through the air conditioner air inlet 13, the indoor air in the heat exchange air duct exchanges heat through the indoor heat exchanger 2, and the heat exchange air flow after heat exchange is discharged to the indoor through the air conditioner air outlet 14, so that the air conditioner is used for refrigerating and heating, the effect of adjusting the indoor air temperature is achieved, and the comfort temperature of a user is achieved.

Referring to fig. 6, in some embodiments of the present application, the housing 1 may include a base 11. The base 11 forms the rear side of the air conditioning indoor unit 100, and the base 11 is adapted to be hung on a wall.

Referring to fig. 5, the housing 1 may include an outer cover 12. The outer cover 12 covers the base 11, and a heat exchange air channel is formed between the outer cover 12 and the base 11.

The cover 12 has a substantially rectangular parallelepiped frame shape. The back side of the outer cover 12 is open, and the outer cover 12 is arranged on the front side of the base 11 and is connected with the base 11 to form the shell 1.

With continued reference to fig. 5, the air-conditioning inlet 13 and the air-conditioning outlet 14 are both provided on the housing 12. The indoor heat exchanger 2 and the heat exchange fan are both arranged on the base 11.

In some embodiments of the application, the housing 12 may be integrally provided. Of course, in other embodiments, the housing 12 may be provided as a separate body.

The air conditioner outdoor unit may include an outdoor case. An outdoor heat exchange air duct can be arranged in the chamber outer shell.

The outdoor housing may include an outdoor air inlet. The outdoor air inlet can be communicated with the outdoor heat exchange air duct. The outdoor air inlet may be used to introduce outdoor air into the outdoor heat exchange air duct.

The outdoor housing may include an outdoor air outlet. The outdoor air outlet can be communicated with the outdoor heat exchange air duct. The outdoor air outlet can be used for leading out air in the outdoor heat exchange air duct to the outside of the outdoor heat exchange air duct.

The air conditioner outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger can be arranged in the outdoor heat exchange air duct.

The air conditioner outdoor unit may include an outdoor fan. The outdoor fan can be arranged in the outdoor heat exchange air duct.

The outdoor fan rotates to enable the outdoor air to enter the heat exchange air duct from the outdoor air inlet to exchange heat with the outdoor heat exchanger, and the heat exchanged outdoor air flows out of the outdoor heat exchange air duct from the outdoor air outlet.

The air conditioner may include a compressor. The compressor is arranged in the outdoor heat exchange air duct.

The air conditioner may include a throttle device. The throttling device is used for throttling. The restriction device may be provided in the air conditioning indoor unit 100 or the air conditioning outdoor unit.

The air conditioner performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, a throttling device, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses refrigerant gas in a low-temperature and low-pressure state to discharge refrigerant gas in a high-temperature and high-pressure state, and the discharged refrigerant gas flows into the condenser.

The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion device expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant.

The evaporator evaporates the refrigerant expanded in the throttle device and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.

The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

In both the indoor heat exchanger and the outdoor heat exchanger, one of them is a condenser and the other is an evaporator, and when the indoor heat exchanger is used as the condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as the evaporator, the air conditioner is used as a cooler of a cooling mode.

Referring to fig. 6, a first partition 111 is provided inside the case 1. The first partition 111 is located at one end in the axial direction of the heat exchange fan 3.

The housing 1 is provided with a second partition 112. The first partition 111 and the second partition 112 are disposed at intervals along the longitudinal direction of the housing 1, and together define a first inner chamber 18 for mounting the heat exchange fan 3.

The first partition portion 111 and the second partition portion 112 can also limit the axial position of the heat exchange fan 3, so as to prevent the heat exchange fan 3 from moving along the length direction of the casing 1, thereby increasing the reliability of the installation of the heat exchange fan 3.

In some embodiments of the application, a second interior cavity 19 is formed within the housing 1. The second inner cavity 19 and the first inner cavity 18 are separated from each other by the first separation portion 111, so that the first inner cavity 18 and the second inner cavity 19 are arranged along the length direction.

In some embodiments of the present application, to implement the fresh air function, the air conditioning indoor unit may include a fresh air module. The fresh air module is used for introducing outdoor fresh air into a room.

Referring to fig. 7-9, the fresh air module may include a fresh air volute 4. The fresh air volute 4 is arranged in the second inner cavity 19, and the fresh air volute 4 and the heat exchange fan 3 are distributed along the length direction of the shell 1. Wherein, the fresh air volute 4 is internally limited with a fresh air channel.

The fresh air volute 4 may include a fresh air intake 41. The fresh air intake 41 is adapted to communicate with the external environment.

The fresh air volute 4 may include a fresh air outlet 42. The fresh air outlet 42 is communicated with the fresh air inlet 41 to form a fresh air channel.

The housing 1 may include an air conditioning fresh air vent 17. The air conditioner fresh air port 17 communicates with the fresh air outlet 42 so that the outdoor fresh air in the fresh air duct flows from the air conditioner fresh air port 17 to the indoor.

The fresh air module may include a fresh air fan 5. The fresh air fan 5 is arranged in the fresh air volute 4, and the fresh air fan 5 runs to introduce outdoor fresh air into the fresh air channel from the fresh air inlet 41, passes through the fresh air outlet 42 and flows into the room from the air conditioner fresh air outlet 17.

Wherein, fresh air fan 5 is centrifugal fan.

In some embodiments of the application, the fresh air volute 4 is attached to the housing 1. The fresh air volute 4 is connected with the casing 1 through a fastener such as a screw or a bolt, and in order to prevent vibration generated by rotation of the fresh air fan 5 from being transmitted to the casing 1 and other components, damping rubber is arranged between the fastener and the casing 1 so as to buffer and absorb the vibration.

In some embodiments of the present application, referring to fig. 10, the air conditioning indoor unit may include a driving device 6.

The driving device 6 is installed inside the casing 1, and the driving device 6 is connected to one end of the heat exchange fan 3 away from the fresh air fan 5, so as to drive the heat exchange fan 3 to operate. Wherein the drive means 6 may comprise a drive motor.

In some embodiments of the present application, an air conditioning indoor unit may include a gear set. The gear set is connected between the heat exchange fan 3 and the fresh air fan 5 in a transmission way, so that a driving device 6 drives the fresh air fan 5 and the heat exchange fan 3 to run at the same time.

Referring to fig. 11-16, the gear set may include a drive gear 7. The driving gear 7 is fixedly connected to one end of the heat exchange fan 3, which is close to the fresh air fan 5, through a power input shaft 71.

Wherein, the heat exchange fan 3 is close to the one end of fresh air fan 5 and has set firmly power input shaft 71, and driving gear 7 cover is located on the power input shaft 71.

The gear set may include a driven gear 8. The driven gear 8 is fixedly connected to one end of the fresh air fan 5, which is close to the heat exchange fan 3, through a power output shaft 81.

Wherein, the fresh air fan 5 is close to the one end of heat exchange fan 3 and has set firmly power take off shaft 81, and driven gear 8 cover is located on the power take off shaft 81.

The driven gear 8 is meshed with the driving gear 7, so that the driving gear 7 rotates to drive the synchronous gear to rotate, and the power input shaft 71 drives the power output shaft 81 to rotate. The driving device 6 drives the heat exchange fan 3 to operate, and the heat exchange fan 3 can drive the fresh air fan 5 to operate through the gear set.

In this embodiment, the driving means 6 may comprise a driving motor. The fresh air fan 5 and the heat exchange fan 3 are driven to run simultaneously through the single driving motor, so that the use of the fresh air motor can be reduced, the cost of the motor is saved, the fresh air module is miniaturized, the length direction of the whole machine is further reduced, the structural layout and the design are more reasonable, the space utilization rate is higher, and the cost of plastic materials is saved.

The curve of the air channel of the centrifugal fan of the fresh air and the curve of the air channel of the cross-flow fan of the air conditioner are different, in the prior art, the fresh air fan 5 and the heat exchange fan 3 are coaxially arranged, the size of the fresh air module is equivalent to that of a conventional fresh air module under the arrangement, the height and thickness directions of the whole machine can be increased, the appearance is uncoordinated, and the material cost is increased. If the size of the limited fresh air conditioner is equivalent to that of a conventional fresh air conditioner, the size of the fresh air module needs to be greatly compressed, the fresh air quantity is reduced, and the use comfort is poor.

In this embodiment, the driven gear 8 is meshed with the driving gear 7, so that the heat exchange fan 3 and the fresh air fan 5 are not coaxially arranged. The gear set is utilized to flexibly fine tune the fresh air module in a limited space, thereby being beneficial to obtaining the maximum air channel profile in the limited space, reasonably utilizing the space, being beneficial to keeping fresh air quantity and saving material cost

Specifically, in this embodiment, by adjusting the position of the driven gear 8 relative to the driving gear 7, flexible adjustment of the centrifugal fan in the front, rear, up and down directions can be achieved, which is beneficial to realizing optimal layout of the fresh air module in a limited size, realizing maximum size design of the fresh air centrifugal fan without increasing the size of the whole machine, being beneficial to improving air quantity, and keeping the appearance size coordinated and attractive.

In this embodiment, a third inner cavity is formed in the housing 1, and the driving device 6 is disposed in the third inner cavity.

Referring to fig. 6, the third cavity is located at a side of the first cavity 18 away from the second cavity 19, so that the second cavity 19, the first cavity 18 and the third cavity are sequentially arranged along the length direction of the housing 1. Wherein the first lumen 18 and the third lumen are isolated from each other by the second partition 112.

In some embodiments of the application, the gear set may be a differential gear set. The arrangement is such that the heat exchange fan 3 and the fresh air fan 5 are connected by a differential gear set.

In the differential gear set, the rotation speed of the power output shaft 81 is different from the rotation speed of the power input shaft 71, so that the heat exchange fan 3 and the fresh air fan 5 respectively operate at different rotation speeds, and the fresh air flow in the fresh air volute 4 is ensured, and meanwhile, the noise of the air conditioner can be reduced.

In some embodiments of the present application, the driving gear 7 and the driven gear 8 are spur gears, and the power input shaft 71 is disposed in parallel with the power output shaft 81.

In this embodiment, by setting the driving gear 7 and the driven gear 8 as spur gears, the power input shaft 71 and the power output shaft 81 are disposed in parallel, so that the central axes of the heat exchange fan 3 and the fresh air fan 5 are disposed in parallel, it is possible to achieve maximization of the fresh air module size in a limited space. By providing a spur gear set, the heat exchange fan 3 and the fresh air fan 5 can obtain different rotation speeds, but the direction is not changed.

In some embodiments of the present application, both the power input shaft 71 and the power output shaft 81 are metal shafts.

In some embodiments of the present application, referring to FIG. 17, the distance between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is L, L is not less than 8mm, i.e., L.gtoreq.8 mm.

It can be understood that the distance between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is the center distance between the driving gear 7 and the driven gear 8.

The distance L cannot be too small, which results in too small a driving gear 7 and/or a driven gear 8, and thus reduces the machining accuracy and the transmission accuracy of the gears, reduces the strength of the gears, and reduces the bearing capacity. In order to ensure the transmission precision and the bearing capacity of the driven gear 8 and the driving size, the distance L between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is not smaller than a first parameter value. For example, the first numerical parameter may be 8mm,8.5mm, or 9mm. A specific one of the parameters is selected as appropriate in consideration of the specific design.

In some embodiments of the application, the distance between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is L, wherein L is not more than 8mm, namely L is less than or equal to 40mm.

The distance L cannot be too large, the driving gear 7 and/or the driven gear 8 are/is too large, the contact frequency of the gears is increased, the service life is short, vibration noise is easy to generate, and in addition, the distance L is too large, the distance between the fresh air fan 5 and the central axis of the heat exchange fan 3 is far away, so that the size of the whole machine needs to be increased. In order to reduce the size of the whole machine and improve the structural stability of the gear set, the distance L between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is not more than a second parameter value. For example, the second numerical parameter may be 40mm,39mm, or 38mm. A specific one of the parameters is selected as appropriate in consideration of the specific design.

In some embodiments of the present application, the distance between the central axis of the heat exchange fan 3 and the central axis of the fresh air fan 5 is L, wherein 8 mm.ltoreq.L.ltoreq.40 mm.

In this embodiment, set the interval L between the central axis of heat transfer fan 3 and the central axis of fresh air fan 5 to 8mm ~40mm arbitrary setting, when guaranteeing size structural strength, reduced the complete machine size, simultaneously, make things convenient for the processing of gear.

In some embodiments of the present application, the ratio between the number of teeth of the driving gear 7 and the number of teeth of the driven gear 8 is in the range of 2 to 3.

The ratio between the number of teeth of the driving gear 7 and the number of teeth of the driven gear 8 is set to be any value between 2 and 3, so that the rotating speed of the fresh air fan 5 is any rotating speed between 2 and 3 times that of the heat exchange fan 3, the ventilation efficiency is improved, the threshold value of the air conditioner using noise is not exceeded, and the using comfort of a user is improved.

In the related art, if the fresh air fan 5 and the heat exchange fan 3 are driven to operate by the same driving device 6, the operation speed of the fresh air fan 5 and the operation speed of the heat exchange fan 3 are the same, and compared with an air conditioner with independent fresh air (the fresh air fan 5 is controlled by an independent motor), the air conditioner with the structure has lower fresh air quantity, so that the ventilation efficiency is lower.

In this embodiment, the rotation speed of the heat exchange fan 3 is about 400-1200 revolutions when the air conditioner is used normally. When the air conditioner is normally used, the rotating speed of the fresh air fan 5 can reach 1000-3600 revolutions, and is equivalent to that of the fresh air fan 5 of the independent fresh air conditioner, the rotating speed is increased, the fresh air volume is increased, the ventilation efficiency is improved, and the threshold value of the noise of the air conditioner is not exceeded.

In some embodiments of the application, the diameter dimension of the driven gear 8 is not less than 6mm.

The diameter of the driven gear 8 cannot be too small, and the structural strength, machining precision and transmission precision of the driven gear 8 cannot be ensured if the diameter is too small. For convenience of processing, structural strength and transmission accuracy of the driven gear 8 are guaranteed, and the diameter size of the driven gear 8 is set to be not smaller than a third parameter value. For example, the third numerical parameter may be 6mm,6.5mm, or 7mm. A specific one of the parameters is selected as appropriate in consideration of the specific design.

The diameter of the gear is the reference circle diameter of the gear. Of course, in other embodiments, the diameter of the gear may be the diameter of the root circle, and the distance between the central axis of the fresh air fan 5 and the central axis of the heat exchange fan 3 can be controlled by controlling the diameters and the groove depths of the driven gear 8 and the driving gear 7.

In some embodiments of the present application, the diameter of the driving gear 7 is larger than the diameter of the driven gear 8, so that the rotation speed of the driving gear 7 is smaller than the rotation speed of the driven gear 8, and the rotation speed of the fresh air fan 5 is higher than the rotation speed of the heat exchange fan 3, so that the requirement of a user on high fresh air volume can be met.

In some embodiments of the present application, the ratio between the diameter of the driven gear 8 and the diameter of the driving gear 7 ranges from 1:2 to 1:3.

The ratio between the diameter of the driven gear 8 and the diameter of the driving gear 7 is set to be any value between 1/2 and 1/3, so that the rotating speed of the fresh air fan 5 is any rotating speed between 2 and 3 times that of the heat exchange fan 3, the rotating speed of the fresh air fan 5 is increased, the ventilation efficiency is improved, the threshold value of the air conditioner using noise is not exceeded, and the user using comfort is improved.

In some embodiments of the present application, referring to fig. 18 and 20, a protective case is mounted on the housing 1, and the protective case is covered outside the driving gear 7 and the driven gear 8.

The gear set formed by the driving gear 7 and the driven gear 8 is protected by the protective shell, so that the operation reliability of the air conditioner is improved.

The inside of protective housing is provided with holds the chamber, holds the chamber and is used for holding the gear train that driving gear 7 and driven gear 8 meshing formed. The protection shell is arranged outside the driving gear 7 and the driven gear 8, so that collision between foreign objects and the gear set can be avoided, and the operation reliability of the indoor unit of the air conditioner can be improved.

In this embodiment, the protective housing is mounted on the housing 1 by support legs. The protective housing has relative first lateral wall and the second lateral wall that sets up, and first lateral wall sets up towards fresh air fan 5, and the second lateral wall sets up towards heat transfer fan 3. Wherein, a first through hole for the power output shaft 81 to penetrate is formed on the first side wall, and a second through hole for the power input shaft 71 to penetrate is formed on the second side wall.

In this embodiment, the first partition 111 may include two partition plates disposed opposite to each other, and the protective case 19 is mounted on the first partition 111.

In some embodiments of the present application, a filter assembly 43 is provided in the fresh air duct to purify the outdoor fresh air flowing indoors.

The filter assembly 43 may include a purge frame. The purification frame is drawably arranged on the fresh air volute 4.

The filter assembly 43 may include a filter screen. The filter screen is arranged on the purification frame and is used for filtering and purifying the outdoor fresh air, so that impurities and floccules doped in the outdoor fresh air are prevented from entering a room.

In some embodiments of the present application, referring to fig. 20, an air intake chamber may be formed in the fresh air volute 4. The fresh air inlet 41 is communicated with the air inlet cavity, and the fresh air fan 5 is positioned in the air inlet cavity.

An air outlet cavity can be formed in the fresh air volute 4. The air outlet cavity is far away from the heat exchange fan 3 relative to the air inlet cavity. Wherein, new trend air outlet 42 and air-out chamber intercommunication setting, air-out chamber and air inlet chamber pass through the inlet scoop intercommunication setting.

The filter component 43 can be arranged in the air outlet cavity, and the filter component 43 can cover the air suction inlet to filter outdoor fresh air, and meanwhile, interference caused by installation of the fresh air fan 5 and the driven gear 8 is avoided.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present 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. A hanging air conditioner, comprising:

2. A hanging air conditioner, comprising:

The fresh air fan is arranged in the fresh air volute, and runs to enable outdoor fresh air to enter the fresh air volute from the fresh air inlet and flow into a room from the fresh air outlet;

3. The hanging air conditioner according to claim 1 or 2, wherein the driving gear and the driven gear are spur gears, and the power input shaft is disposed in parallel with the power output shaft.

4. A hanging air conditioner according to claim 3, wherein the distance between the central axis of the heat exchange fan and the central axis of the fresh air fan is not more than 40mm.

5. A hanging air conditioner according to claim 3, wherein the distance between the central axis of the heat exchange fan and the central axis of the fresh air fan is not less than 8mm.

6. The hanging air conditioner according to claim 1 or 2, wherein a ratio between the number of teeth of the driving gear and the number of teeth of the driven gear ranges from 2 to 3.

7. A hanging air conditioner according to claim 1 or 2, wherein the diameter size of the driven gear is not less than 6mm.

8. The wall-mounted air conditioner of claim 7, wherein the diameter of the driving gear is larger than the diameter of the driven gear so that the rotation speed of the driving gear is smaller than the rotation speed of the driven gear.

9. The hanging air conditioner according to claim 7, wherein a ratio between a diameter of the driven gear and a diameter of the driving gear ranges from 1:2 to 1:3.

10. The hanging air conditioner according to claim 1 or 2, wherein a protective housing is mounted on the housing, and the protective housing is covered outside the driving gear and the driven gear.