CN218936485U

CN218936485U - Air conditioner

Info

Publication number: CN218936485U
Application number: CN202223608795.3U
Authority: CN
Inventors: 黄武; 黄民柱; 向毅
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-28
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses an air conditioner, which comprises a shell, an inner air duct component and a driving mechanism, wherein the inner air duct component is arranged on the shell; the shell is internally provided with an upper air channel and a lower air channel which are mutually independent, the upper air channel is positioned above the lower air channel, the shell is provided with an upper air outlet and a lower air outlet which are formed on the surface of the shell, the upper air channel is communicated with the upper air outlet, the upper air channel is used for conveying cold air, the lower air channel is communicated with the lower air outlet, and the lower air channel is used for conveying hot air; the inner air duct component comprises an inner air duct cavity and a cross-flow fan, the inner air duct cavity and the cross-flow fan are positioned in the shell, and the inner air duct cavity is configured to convey air flow generated by the cross-flow fan; the driving mechanism is arranged on the shell, the driving mechanism drives the inner air duct cavity to rotate around the central shaft of the cross-flow fan, and the inner air duct cavity is communicated with the upper air duct or the lower air duct through rotation selection, so that the efficiency of conveying hot air or cold air of the air conditioner is indirectly improved.

Description

Air conditioner

Technical Field

The present utility model relates to an air conditioner.

Background

The existing wall-mounted air conditioner indoor unit only has one air outlet, downward blowing is realized by adjusting a transverse air plate, upward blowing is realized by refrigerating, however, the complete anastomosis of the curve of an air duct is difficult to realize by adjusting the transverse air plate, the ideal state of air flow is also difficult to realize, as shown in fig. 1-2, when downward blowing is realized by heating, the air flow turns too fast, part of air possibly leaks out from the back of the air plate, and perfect carpet-type heating air flow is difficult to realize.

Disclosure of Invention

The utility model aims to solve the technical problems that: the existing wall-mounted air conditioner indoor unit only has one air outlet, and complete anastomosis of air duct curves is difficult to achieve.

In order to solve the technical problems, the utility model provides an air conditioner, which comprises a shell, an inner air duct component and a driving mechanism; the shell is internally provided with an upper air channel and a lower air channel which are mutually independent, the upper air channel is positioned above the lower air channel, the shell is provided with an upper air outlet and a lower air outlet which are formed on the surface of the shell, the upper air channel is communicated with the upper air outlet, the upper air channel is used for conveying cold air, the lower air channel is communicated with the lower air outlet, and the lower air channel is used for conveying hot air; the inner air duct component comprises an inner air duct cavity and a cross-flow fan, the inner air duct cavity and the cross-flow fan are positioned in the shell, and the inner air duct cavity is configured to convey air flow generated by the cross-flow fan; the driving mechanism is arranged on the shell, the driving mechanism drives the inner air channel cavity to rotate around the central shaft of the cross-flow fan, and the inner air channel cavity is communicated with the upper air channel or the lower air channel through rotation selection.

In some embodiments of the present application, the housing further includes an air-feeding plate and an upper motor, the air-feeding plate is located at the air outlet, the upper motor is installed in the housing, and the upper motor drives the air-feeding plate to rotate and enables the air-feeding plate to open or close the air outlet.

In some embodiments of the present application, the windward plate is hinged to the top of the air outlet, the windward plate is driven by the upper motor to turn up and down, when the windward plate is turned up to the highest position by the upper motor, one end of the windward plate is propped against the edge of the top end of the upper air channel, and the air flow flowing out from the upper air channel passes through the lower surface of the windward plate to spread outwards.

In some embodiments of the present application, the upper air outlet is towards the oblique top of casing, when last motor drive the aerofoil overturns to the highest department, the face of aerofoil is inclined relative to the horizontal plane, the bottom of aerofoil support in the last wind channel, the top of aerofoil is higher than the last wind channel.

In some embodiments of the present application, the housing further includes a downwind plate and a lower motor, the downwind plate is located at the lower air outlet, the lower motor is installed in the housing, and the lower motor drives the downwind plate to rotate and enables the downwind plate to open or close the lower air outlet.

In some embodiments of the present application, the air outlet is hinged at the top of the air outlet, the air outlet is turned over from top to bottom by the lower motor, when the air outlet is turned over to the highest position by the lower motor, one end of the air outlet is propped against the edge of the top end of the air outlet, and the air flow flowing out from the air outlet passes through the lower surface of the air outlet and is diffused outwards.

In some embodiments of the present application, the lower air outlet is towards the oblique below of casing, when lower motor drive the lower aerofoil overturns to the highest department, the face of lower aerofoil is inclined relative to the horizontal plane, lower aerofoil will the air current of lower wind channel output is directed oblique below.

In some embodiments of the present application, the actuating mechanism includes driving motor, driving gear and driven gear, driving motor fixes the casing, the driving gear install in the casing, driving motor with the driving gear links to each other and drives the driving gear is rotatory, driven gear with interior wind channel chamber is fixed mutually, driving gear with driven gear meshes mutually, driving motor is through driving driven gear is rotatory thereby drives interior wind channel chamber is rotatory.

In some embodiments of the present application, the inner air duct cavity includes lower aviation baffle and last aviation baffle, down the aviation baffle orientation the one side of cross-flow fan is the cambered surface, just the face configuration of lower aviation baffle is the undercut, it includes first section and second section to go up the aviation baffle, the face orientation of first section cross-flow fan, the one end of second section with the one end of first section links to each other, the second section is relative first section deflection, just the second section orientation first section is dorsad the one side deflection of cross-flow fan.

In some embodiments of the present application, the size of the opening of the upper air duct facing the through-flow fan is equal to the size of the opening of the lower air duct facing the through-flow fan, and the size of the opening of the inner air duct cavity far away from one end of the through-flow fan is equal to the size of the opening of the lower air duct facing the through-flow fan.

Compared with the prior art, the air conditioner has the beneficial effects that: through setting up wind channel and lower wind channel in the casing, set up wind channel and lower wind channel mutually independent, set up wind outlet and lower wind outlet mutually independent, control interior wind channel chamber and wind channel or lower wind channel butt joint through actuating mechanism, make wind channel and last air outlet carry cold wind specially, make wind channel and lower air outlet carry hot-blast specially down, wind channel and last air outlet can design into the wind channel of suitable curve according to the characteristic of cold wind, satisfy the flow mode of cold wind as far as possible, lower wind channel and lower air outlet also can design into the wind channel of suitable curve according to the characteristic of hot wind, satisfy the flow mode of hot wind as far as possible, compared with the traditional mode that adopts single horizontal aerofoil to control wind direction, adaptability to cold wind and hot wind is stronger, indirectly improve the efficiency that the air conditioner carried hot wind or cold wind.

Drawings

FIG. 1 is a schematic diagram of a prior art air conditioner when heating;

FIG. 2 is a schematic diagram of a prior art air conditioner during cooling;

FIG. 3 is a schematic diagram of an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the internal structure of an embodiment of the present utility model;

FIG. 5 is a side view of an embodiment of the present utility model;

FIG. 6 is a schematic diagram of one embodiment of the present utility model when cooling;

FIG. 7 is a schematic view of an inner duct chamber of the present utility model rotated;

FIG. 8 is a schematic diagram of one embodiment of the present utility model when heated;

FIG. 9 is a schematic diagram of the drive mechanism of one embodiment of the present utility model;

fig. 10 is an enlarged schematic view of the portion a in fig. 9.

In the figure, a housing 1; an upper duct 11; a lower duct 12; an upper air outlet 13; a lower air outlet 14; a windup plate 15; an upper motor 16; a downwind plate 17; a lower motor 18; an inner air duct member 2; an inner air duct chamber 21; a lower air deflector 211; an upper deflector 212; a first section 2121; a second section 2122; a cross-flow fan 22; a driving mechanism 3; a transmission motor 31; a drive gear 32; driven gear 33.

Detailed Description

Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive, exemplary, and should not be construed as limiting the scope of the present application.

First, it should be noted that the top, bottom, upward, downward, etc. orientations referred to herein are defined with respect to the orientation in the various figures, are relative concepts and thus can be changed depending on the different positions they are in and the different practical states. These and other orientations, therefore, are not to be considered limiting.

It should be noted that the term "comprising" does not exclude other elements or steps and the "a" or "an" does not exclude a plurality.

Furthermore, it should also be noted that, for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, a combination can still be continued between these technical features (or equivalents thereof) to obtain other embodiments of the present application not directly mentioned herein.

It should also be understood that the terms "first," "second," and the like are used herein to describe various information, but that such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present application.

It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.

In the present application, the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and a heat exchanger. The refrigeration cycle includes a number of series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat exchanged air.

The compressor compresses a refrigerant in a low-temperature and low-pressure state and discharges a compressed high-temperature and high-pressure refrigerant gas. 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 valve expands the liquid-phase refrigerant in the medium-temperature high-pressure state condensed in the condenser into a low-temperature low-pressure liquid-phase refrigerant. The heat exchanger evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor. The heat exchanger 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.

The air conditioner includes an air conditioner indoor unit including a compressor and an outdoor heat exchanger, and an air conditioner outdoor unit including an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.

As shown in fig. 3 to 4, an air conditioner according to a preferred embodiment of the present utility model includes a housing 1, an inner air duct member 2, and a driving mechanism 3, the inner air duct member 2 being located in the housing 1. The driving mechanism 3 drives the inner air duct component 2 to rotate relative to the shell 1, so that the inner air duct component 2 selects a proper air duct to convey cold air or hot air.

As shown in fig. 4-8, the casing 1 is provided with an upper air duct 11 and a lower air duct 12 which are independent from each other, the upper air duct 11 is located above the lower air duct 12, the casing 1 is provided with an upper air outlet 13 and a lower air outlet 14 formed on the surface of the casing 1, the upper air duct 11 is communicated with the upper air outlet 13, the upper air duct 11 is used for conveying cold air, the air is cooled by a heat exchanger to form cold air, the cold air can flow into the upper air duct 11 under the action of the inner air duct component 2, and then the cold air is diffused from the upper air duct 11 to the outside of the air conditioner through the upper air outlet 13. The lower air duct 12 is communicated with the lower air outlet 14, the lower air duct 12 is used for conveying hot air, the hot air is formed after being heated by the heat exchanger, the hot air can flow into the lower air duct 12 under the action of the inner air duct component 2, and then the hot air is diffused from the lower air duct 12 to the outside of the air conditioner through the lower air outlet 14. Because the flow modes of the cold air and the hot air are different, and the hot air is easier to rise relatively to the cold air, the upper air duct 11 and the lower air duct 12 are mutually independent, so that the upper air duct 11 and the upper air outlet 13 are used for specially conveying the cold air, the lower air duct 12 and the lower air outlet 14 are used for specially conveying the hot air, the upper air duct 11 can be independently designed into a proper air duct curve according to the flow mode of the cold air, and the lower air duct 12 can be independently designed into a proper air duct curve according to the flow mode of the hot air, so that the air conditioner can blow the hot air or the cold air in an ideal state.

As shown in fig. 5 to 6, the inner air duct member 2 includes an inner air duct chamber 21 and a cross flow fan 22, the inner air duct chamber 21 and the cross flow fan 22 being located within the housing 1, the inner air duct chamber 21 being configured to convey an air flow generated by the cross flow fan 22. The external air enters the heat exchanger in the air conditioner from the air inlet of the air conditioner under the action of the cross-flow fan 22, exchanges heat through the heat exchanger, and flows to the inner air channel cavity 21 under the action of the cross-flow fan 22.

As shown in fig. 4 to 9, the driving mechanism 3 is mounted on the housing 1, the driving mechanism 3 drives the inner air duct cavity 21 to rotate around the central axis of the cross-flow fan 22, and the inner air duct cavity 21 is selectively communicated with the upper air duct 11 or the lower air duct 12 through rotation. When the air conditioner needs to blow cold air, the driving mechanism 3 drives the inner air channel cavity 21 to rotate around the central shaft of the cross flow fan 22, so that the inner air channel cavity 21 is in butt joint with and communicated with the upper air channel 11, air enters the air conditioner under the action of the cross flow fan 22, is cooled by a heat exchanger of the air conditioner to form cold air, the cold air is blown into the inner air channel cavity 21 under the action of the cross flow fan 22, is blown into the upper air channel 11 from the inner air channel cavity 21, and is finally blown out of the air conditioner through the upper air outlet 13; when the air conditioner needs to blow hot air, the driving mechanism 3 drives the inner air channel cavity 21 to rotate around the central shaft of the cross-flow fan 22, so that the inner air channel cavity 21 is in butt joint with and communicated with the lower air channel 12, air enters the air conditioner under the action of the cross-flow fan 22 and is heated by a heat exchanger of the air conditioner to form hot air, the hot air is blown into the inner air channel cavity 21 under the action of the cross-flow fan 22, then is blown into the lower air channel 12 from the inner air channel cavity 21, and finally is blown out of the air conditioner through the lower air outlet 14.

As shown in fig. 3-7, the housing 1 further includes an air-lifting plate 15 and an upper motor 16, the air-lifting plate 15 is located at the upper air outlet 13, the upper motor 16 is mounted on the housing 1, and the upper motor 16 drives the air-lifting plate 15 to rotate and enables the air-lifting plate 15 to open or close the upper air outlet 13. When the air conditioner needs to blow cold air, the driving mechanism 3 drives the inner air duct cavity 21 to be in butt joint with and communicated with the upper air duct 11, the upper motor 16 drives the upper air plate 15 to rotate and opens the upper air outlet 13, and the cold air is blown out of the air conditioner from the upper air outlet 13 under the action of the cross-flow fan 22; when the air conditioner needs to blow hot air or stop working, the upper motor 16 drives the upper air plate 15 to rotate and close the upper air outlet 13, and the upper air plate 15 protects the upper air outlet 13.

As shown in fig. 4-8, the air-up plate 15 is hinged to the top of the air outlet 13, the upper motor 16 drives the air-up plate 15 to turn up and down, when the upper motor 16 drives the air-up plate 15 to turn up to the highest position, one end of the air-up plate 15 abuts against the edge of the top end of the air-up duct 11, and the air flow flowing out from the air-up duct 11 passes through the lower surface of the air-up plate 15 to diffuse outwards, so that the air-up plate 15 can block the cold air from flowing upwards at this time, and prevent the cold air from being directly sucked back to the air inlet of the air conditioner due to the suction force of the air conditioner return air, thereby affecting the rapid refrigeration efficiency of the air conditioner. The upper air outlet 13 is directed to the obliquely upper side of the shell 1, when the upper motor 16 drives the upper air plate 15 to turn to the highest position, the plate surface of the upper air plate 15 is inclined relative to the horizontal plane, the bottom end of the upper air plate 15 is propped against the upper air duct 11, the top end of the upper air plate 15 is higher than the upper air duct 11, the upper air plate 15 can guide the direction of cold air flow except for blocking the cold air to flow to the air inlet of the air conditioner, and because the cold air is heavier relative to the air at normal temperature, the cold air flows to the obliquely upper side for a small distance and then sinks after being guided by the upper air plate 15, so that a bath type cold air effect is generated, and the effects of rapid refrigeration and comfortable cooling feeling are achieved.

As shown in fig. 4-8, the housing 1 further includes a downwind plate 17 and a lower motor 18, the downwind plate 17 is located at the lower air outlet 14, the lower motor 18 is mounted on the housing 1, and the lower motor 18 drives the downwind plate 17 to rotate and makes the downwind plate 17 open or close the lower air outlet 14. When the air conditioner needs to blow hot air, the driving mechanism 3 drives the inner air duct cavity 21 to be in butt joint with and communicated with the lower air duct 12, the lower motor 18 drives the lower air plate 17 to rotate and open the lower air outlet 14, and the hot air is blown out of the air conditioner from the lower air outlet 14 under the action of the cross flow fan 22; when the air conditioner needs to blow cold air or stop working, the lower motor 18 drives the lower air plate 17 to rotate and close the lower air outlet 14, and the lower air plate 17 can protect the lower air outlet 14.

As shown in fig. 5-8, the air down plate 17 is hinged to the top of the air down outlet 14, the air down plate 17 is driven by the lower motor 18 to turn up and down, when the air down plate 17 is driven by the lower motor 18 to turn up and down, one end of the air down plate 17 abuts against the edge of the top end of the air down channel 12, and the air flow flowing out from the air down channel 12 is spread outwards through the lower surface of the air down plate 17. The air-down plate 17 can prevent the hot air from the air-down opening 14 from rising upward, and prevent the hot air from being directly sucked back to the air inlet of the air conditioner due to the suction force of the return air of the air conditioner, thereby affecting the rapid heating efficiency of the air conditioner. The lower air outlet 14 is oriented to the obliquely lower side of the shell 1, when the lower motor 18 drives the lower air plate 17 to turn to the highest position, the plate surface of the lower air plate 17 is inclined relative to the horizontal plane, and the lower air plate 17 guides the air flow output by the lower air duct 12 to the obliquely lower side. Because the hot air is lighter than the air with normal temperature and is easy to rise, in order to improve the heating efficiency of the air conditioner, the hot air is directly blown to the ground by guiding the flowing direction of the hot air through the air down plate 17, the ground is quickly warmed up, and the hot air is lighter and floats upwards easily, so that the carpet type heating effect can be produced by the hot air, and the effects of quick heating and comfort and warmth are achieved.

As shown in fig. 6-10, the driving mechanism 3 includes a transmission motor 31, a driving gear 32 and a driven gear 33, the transmission motor 31 is fixed on the housing 1, the driving gear 32 is mounted on the housing 1, the transmission motor 31 is connected with the driving gear 32 and drives the driving gear 32 to rotate, the driven gear 33 is fixed with the inner air duct cavity 21, the driving gear 32 is meshed with the driven gear 33, the transmission motor 31 drives the driving gear 32 to rotate, the driving gear 32 drives the driven gear 33 to rotate, and the inner air duct cavity 21 rotates along with the rotation of the driven gear 33, so that the inner air duct cavity 21 is selectively butted and communicated with the upper air duct 11 or the lower air duct 12.

As shown in fig. 5-8, the inner air duct cavity 21 includes a lower air deflector 211 and an upper air deflector 212, one surface of the lower air deflector 211 facing the through-flow fan 22 is a cambered surface, the plate surface of the lower air deflector 211 is configured to be concave downward, and one surface of the lower air deflector 211 facing the through-flow fan 22 is adapted to the rotation direction of the through-flow fan 22, so that resistance when the through-flow fan 22 delivers air flow to the inner air duct cavity 21 is reduced, and in addition, the lower air deflector 211 can also direct the air flow delivered by the through-flow fan 22. The upper air deflector 212 includes a first section 2121 and a second section 2122, the plate surface of the first section 2121 faces the through-flow fan 22, one end of the second section 2122 is connected to one end of the first section 2121, the second section 2122 is deviated from the first section 2121, and the second section 2122 is deviated from the first section 2121 facing away from the through-flow fan 22, where the first section 2121 abuts against the through-flow fan 22, the first section 2121 may guide the air flow outputted from the through-flow fan 22 to the inner air channel cavity 21 more intensively, the second section 2122 mainly guides the air flow outputted from the through-flow fan 22, and the extending direction of the plate surface of the second section 2122 is substantially consistent with the rotating direction of the through-flow fan 22, so that the resistance when the through-flow fan 22 delivers the air flow to the inner air channel cavity 21 can be reduced.

As shown in fig. 5-7, the size of the opening of the upper air duct 11 facing the through-flow fan 22 is equal to the size of the opening of the lower air duct 12 facing the through-flow fan 22, the size of the opening of the inner air duct cavity 21 at the end far away from the through-flow fan 22 is equal to the size of the opening of the lower air duct 12 facing the through-flow fan 22, so that when the inner air duct cavity 21 is butted with the upper air duct 11, the inner air duct cavity 21 can convey air flow to the upper air duct 11 as much as possible without air leakage, and when the inner air duct cavity 21 is butted with the lower air duct 12, the inner air duct cavity 21 can convey air flow to the lower air duct 12 as much as possible without air leakage.

In summary, the embodiment of the utility model provides an air conditioner, which is characterized in that an upper air duct 11 and a lower air duct 12 are arranged in a shell 1, the upper air duct 11 and the lower air duct 12 are mutually independent, an upper air outlet 13 and a lower air outlet 14 are mutually independent, an inner air duct cavity 21 is controlled to be in butt joint with the upper air duct 11 or the lower air duct 12 through a driving mechanism 3, so that the upper air duct 11 and the upper air outlet 13 are used for specially conveying cold air, the lower air duct 12 and the lower air outlet 14 are used for specially conveying hot air, the upper air duct 11 and the upper air outlet 13 can be designed into air ducts with proper curves according to the characteristics of the cold air, the flowing mode of the cold air is met as far as possible, the lower air duct 12 and the lower air outlet 14 can also be designed into air ducts with proper curves according to the characteristics of the hot air, the flowing mode of the hot air is met as far as possible, compared with the traditional mode of adopting a single transverse air plate to control the wind direction, the adaptability to the cold air and the hot air is stronger, and the efficiency of the air conditioner for conveying the hot air or the cold air is indirectly improved.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. An air conditioner, comprising:

the shell is internally provided with an upper air duct and a lower air duct which are mutually independent, the upper air duct is positioned above the lower air duct, the shell is provided with an upper air outlet and a lower air outlet which are formed on the surface of the shell, the upper air duct is communicated with the upper air outlet, the upper air duct is used for conveying cold air, the lower air duct is communicated with the lower air outlet, and the lower air duct is used for conveying hot air;

an inner air duct component comprising an inner air duct cavity and a cross-flow fan, the inner air duct cavity and the cross-flow fan being located within the housing, the inner air duct cavity configured to convey an air flow generated by the cross-flow fan;

the driving mechanism is arranged on the shell, the driving mechanism drives the inner air channel cavity to rotate around the central shaft of the cross-flow fan, and the inner air channel cavity is communicated with the upper air channel or the lower air channel through rotation selection.

2. An air conditioner according to claim 1, wherein: the shell also comprises an upper air plate and an upper motor, wherein the upper air plate is positioned at the upper air outlet, the upper motor is arranged on the shell, and the upper motor drives the upper air plate to rotate and enables the upper air plate to open or close the upper air outlet.

3. An air conditioner according to claim 2, wherein: the upper air plate is hinged to the top of the upper air outlet, the upper motor drives the upper air plate to turn up and down, when the upper motor drives the upper air plate to turn up to the highest position, one end of the upper air plate abuts against the edge of the top end of the upper air channel, and air flow flowing out of the upper air channel passes through the lower surface of the upper air plate to diffuse outwards.

4. An air conditioner according to claim 3, wherein: the upper air outlet faces to the obliquely upper side of the shell, when the upper motor drives the upper air plate to turn to the highest position, the plate surface of the upper air plate is inclined relative to the horizontal plane, the bottom end of the upper air plate is propped against the upper air channel, and the top end of the upper air plate is higher than the upper air channel.

5. An air conditioner according to claim 1, wherein: the shell also comprises a lower air plate and a lower motor, wherein the lower air plate is positioned at the lower air outlet, the lower motor is arranged on the shell, and the lower motor drives the lower air plate to rotate and enables the lower air plate to open or close the lower air outlet.

6. An air conditioner according to claim 5, wherein: the lower air plate is hinged to the top of the lower air outlet, the lower motor drives the lower air plate to turn up and down, when the lower motor drives the lower air plate to turn up to the highest position, one end of the lower air plate abuts against the edge of the top end of the lower air channel, and air flow flowing out of the lower air channel passes through the lower surface of the lower air plate to diffuse outwards.

7. An air conditioner according to claim 6, wherein: the lower air outlet faces to the obliquely lower side of the shell, when the lower motor drives the lower air plate to turn to the highest position, the plate surface of the lower air plate is inclined relative to the horizontal plane, and the lower air plate guides the air flow output by the lower air channel to the obliquely lower side.

8. An air conditioner according to claim 1, wherein: the driving mechanism comprises a transmission motor, a driving gear and a driven gear, wherein the transmission motor is fixed on the shell, the driving gear is installed on the shell, the transmission motor is connected with the driving gear and drives the driving gear to rotate, the driven gear is fixed with the inner air duct cavity, the driving gear is meshed with the driven gear, and the transmission motor drives the inner air duct cavity to rotate by driving the driven gear to rotate.

9. An air conditioner according to claim 1, wherein: the inner air duct cavity comprises a lower air guide plate and an upper air guide plate, wherein one surface of the lower air guide plate facing the through-flow fan is an arc surface, the plate surface of the lower air guide plate is configured to be concave downwards, the upper air guide plate comprises a first section and a second section, the plate surface of the first section faces the through-flow fan, one end of the second section is connected with one end of the first section, the second section is deflected relative to the first section, and the second section is deflected towards one surface of the first section, which is opposite to the through-flow fan.

10. An air conditioner according to claim 1, wherein: the size of the opening of the upper air duct, which faces the through-flow fan, is equal to that of the opening of the lower air duct, which faces the through-flow fan, and the size of the opening of the inner air duct cavity, which is far away from one end of the through-flow fan, is equal to that of the opening of the lower air duct, which faces the through-flow fan.