CN214619831U

CN214619831U - Air conditioner

Info

Publication number: CN214619831U
Application number: CN202023254748.4U
Authority: CN
Inventors: 廖凯格; 孙小洪; 杨登明; 刘雷明
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-05
Anticipated expiration: 2030-12-29

Abstract

The utility model provides an air conditioner, which comprises a shell and a first filter screen, wherein the upper part of the shell is provided with a refrigerating air outlet and a heating air inlet which can be opened and closed; the first filter screen is arranged at the heating air inlet; in the air conditioner, in a cooling mode, a heating air inlet is closed, and a cooling air outlet is opened to discharge air; in the heating mode of the air conditioner, the cooling air outlet is closed, and the heating air inlet is opened to supply air. In this scheme, the upper portion of shell is provided with two wind gaps of refrigeration air outlet and heating air intake, and refrigeration air outlet air-out when refrigerating, and heating air intake air inlet air when heating, two wind gaps on this shell upper portion are used for the air inlet respectively and the air-out promptly, need not to set up the first filter screen of moving mechanism drive and remove like this, and first filter screen alright filter the air inlet and can not block the air-out. Therefore, the scheme reduces the moving mechanism of the air conditioner, thereby simplifying the structure of the air conditioner and reducing the cost.

Description

Air conditioner

Technical Field

The utility model relates to an air conditioner technical field particularly, relates to an air conditioner.

Background

In the related art, in order to enhance the user experience, some air conditioners can switch the air flow direction, for example, an air vent at the upper part of the air conditioner outputs air during cooling and inputs air during heating. In order to avoid impurities in the air from entering the air conditioner, a filter screen is arranged at the air vent, and when the air exits from the air vent, the filter screen generates resistance to reduce the wind speed. In order to solve the problem, a movable mechanism is arranged in the air conditioner to drive the filter screen to move so as to shield or avoid the vent according to the wind direction. However, this results in a complicated structure and high cost of the air conditioner.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air conditioner to simplify the structure of air conditioner, reduce cost.

In order to achieve the above object, the present invention provides an air conditioner, including: the upper part of the shell is provided with a refrigerating air outlet and a heating air inlet which can be opened and closed; the first filter screen is arranged at the heating air inlet; in the air conditioner, in the cooling mode, the heating air inlet is closed, and the cooling air outlet is opened to discharge air; in the heating mode of the air conditioner, the cooling air outlet is closed, and the heating air inlet is opened to supply air.

Further, the lower portion of the housing has a lower vent, and the air conditioner further includes: the fan is arranged in a cavity between the refrigerating air outlet and the lower vent of the shell, and is provided with an upper air supply outlet and a lower air supply outlet which can be opened and closed; the air conditioner is characterized in that the air conditioner is in a refrigeration mode, air enters the lower vent to supply air to the fan, the lower air supply outlet is closed, the upper air supply outlet is opened to supply air upwards, and the refrigeration air outlet is communicated with the upper air supply outlet; the air conditioner is in under the mode of heating, the air inlet that heats is for the fan air supply, go up the supply-air outlet and close, the supply-air outlet is opened in order to supply air downwards down, lower vent with supply-air outlet intercommunication and air-out down.

Further, the air conditioner further includes: the air outlet air deflector is rotatably arranged at the refrigerating air outlet; the air inlet air deflector is rotatably arranged at the heating air inlet.

Further, the cooling air outlet is located on the top wall of the shell, and the heating air inlet is located on the upper portion of the side wall of the shell.

Furthermore, the fan is provided with an air induction port, an upper air duct is arranged in the area above the fan in the shell and is used for communicating the refrigerating air outlet or the heating air inlet with the air induction port, a lower air duct is arranged between the fan and the shell and is used for supplying air to the air induction port from the lower part of the air conditioner; wherein, in the refrigeration mode of the air conditioner, the upper air duct is closed, and the lower air duct is opened; and when the air conditioner is in the heating mode, the upper air duct is opened, and the lower air duct is closed.

Further, the air conditioner further includes: the upper wind shielding mechanism is arranged in the cavity of the shell, and at least one part of the upper wind shielding mechanism is movably arranged to open or close the upper wind channel; and the lower wind shielding mechanism is arranged in the cavity of the shell, and at least one part of the lower wind shielding mechanism is movably arranged to open or close the lower wind channel.

Furthermore, the number of the upper air ducts is two, and the two upper air ducts are respectively positioned on two sides of the fan on the horizontal projection plane of the air conditioner; the number of the lower air ducts is two, and the two lower air ducts are respectively positioned on two sides of the fan; the number of the air inducing ports is two, and the two air inducing ports are respectively located on two sides of the fan.

Furthermore, the lower part of the shell is also provided with a lower air inlet, the lower air inlet and the lower ventilation opening are respectively positioned at two sides of the shell, the lower air inlet is communicated with one lower air duct, and the lower ventilation opening is communicated with the other lower air duct.

Further, the air conditioner further includes: the second filter screen is arranged in the lower air duct communicated with the lower vent; and the third filter screen is arranged at the lower air inlet.

Further, the shell is internally provided with a heat exchange cavity between the fan and the refrigeration air outlet, a part of cavity of the heat exchange cavity forms the upper air duct, the air conditioner further comprises a heat exchanger, and the heat exchanger is arranged in the heat exchange cavity of the shell.

Further, the fan includes: a volute having the upper supply air outlet and the lower supply air outlet; the centrifugal fan blade is rotatably arranged in the induced draft cavity of the volute; the rotary volute tongue is rotatably arranged in the induced air cavity, the rotary volute tongue is provided with a first position for closing the lower air supply outlet and opening the upper air supply outlet, and the rotary volute tongue is also provided with a second position for closing the upper air supply outlet and opening the lower air supply outlet.

The technical scheme of the utility model provides an air conditioner, which comprises a shell and a first filter screen, wherein the upper part of the shell is provided with a refrigerating air outlet and a heating air inlet which can be opened and closed; the first filter screen is arranged at the heating air inlet; in the air conditioner, in a cooling mode, a heating air inlet is closed, and a cooling air outlet is opened to discharge air; in the heating mode of the air conditioner, the cooling air outlet is closed, and the heating air inlet is opened to supply air. In this scheme, the upper portion of shell is provided with two wind gaps of refrigeration air outlet and heating air intake, and refrigeration air outlet air-out when refrigerating, and heating air intake air inlet air when heating, two wind gaps on this shell upper portion are used for the air inlet respectively and the air-out promptly, need not to set up the first filter screen of moving mechanism drive and remove like this, and first filter screen alright filter the air inlet and can not block the air-out. Therefore, the scheme reduces the moving mechanism of the air conditioner, thereby simplifying the structure of the air conditioner and reducing the cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

fig. 2 shows a partially enlarged view of the air conditioner in fig. 1.

Wherein the figures include the following reference numerals:

10. a housing; 11. a refrigeration air outlet; 12. a heating air inlet; 13. a lower vent; 14. an upper air duct; 15. a lower air duct; 16. a lower air inlet; 21. a first filter screen; 22. a second filter screen; 23. a third filter screen; 30. a fan; 31. an air inducing port; 41. an air outlet air deflector; 42. an air inlet deflector; 51. an upper wind shielding mechanism; 52. a lower wind shielding mechanism; 60. a heat exchanger.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 2, an embodiment of the present invention provides an air conditioner, including: a casing 10, wherein the upper part of the casing 10 is provided with a refrigerating air outlet 11 and a heating air inlet 12 which can be opened and closed; the first filter screen 21 is arranged at the heating air inlet 12; in the air conditioner, in the cooling mode, the heating air inlet 12 is closed, and the cooling air outlet 11 is opened to discharge air; in the heating mode of the air conditioner, the cooling air outlet 11 is closed, and the heating air inlet 12 is opened to supply air.

In this scheme, the upper portion of shell 10 is provided with two wind gaps of refrigeration air outlet 11 and heating air intake 12, and refrigeration air outlet 11 air-out when refrigerating, heats air intake 12 air-in when heating, and two wind gaps on shell 10 upper portion are used for air inlet and air-out respectively, need not to set up the first filter screen 21 of movable mechanism drive and remove like this, and first filter screen 21 alright filters the air inlet and can not block the air-out. Therefore, the scheme reduces the moving mechanism of the air conditioner, thereby simplifying the structure of the air conditioner and reducing the cost.

Further, the lower portion of the casing 10 has a lower vent 13, and the air conditioner further includes: a fan 30 disposed in a cavity of the casing 10 between the cooling air outlet 11 and the lower vent 13, the fan 30 having an upper air supply outlet and a lower air supply outlet which are openable and closable; in the air conditioner in a cooling mode, air is supplied to the lower air inlet 13 to supply air to the fan 30, the lower air supply outlet is closed, the upper air supply outlet is opened to supply air upwards, and the cooling air outlet 11 is communicated with the upper air supply outlet; in the heating mode of the air conditioner, the heating air inlet 12 supplies air to the fan 30, the upper air supply outlet is closed, the lower air supply outlet is opened to supply air downwards, and the lower vent 13 is communicated with the lower air supply outlet to supply air out. Through this scheme, the air-out direction of air conditioner can be changed in the cooperation in fan 30 and each wind gap, and upper portion goes out cold wind when refrigerating promptly, and the lower part goes out the warm braw when heating, can improve heat exchange efficiency and user experience like this.

In this embodiment, the air conditioner further includes: the air outlet air deflector 41 is rotatably arranged at the refrigerating air outlet 11; the air inlet deflector 42 is rotatably disposed at the heating air inlet 12. By adopting the scheme, the refrigerating air outlet 11 can be opened or closed through the air outlet air deflector 41, or the air outlet direction can be adjusted, and the heating air inlet 12 can be opened or closed through the air inlet air deflector 42, or the air inlet direction can be adjusted. Optionally, there are a plurality of air outlet deflectors 41, and the rotation angle of each air outlet deflector 41 can be controlled independently. Optionally, there are a plurality of the air inlet deflectors 42, and the rotation angle of each air inlet deflector 42 can be controlled independently.

In this embodiment, the cooling air outlet 11 is located on the top wall of the casing 10, and the heating air inlet 12 is located on the upper portion of the side wall of the casing 10. This air conditioner can realize the air-out that makes progress like this, and the side air inlet guarantees air-out and air inlet effect.

In this embodiment, the fan 30 has an air induction port 31, the area above the fan 30 in the casing 10 has an upper air duct 14, the upper air duct 14 is used for communicating the cooling air outlet 11 or the heating air inlet 12 with the air induction port 31, a lower air duct 15 is provided between the fan 30 and the casing 10, and the lower air duct 15 is used for supplying air from the lower part of the air conditioner to the air induction port 31; wherein, in the air conditioner in the refrigeration mode, the upper air duct 14 is closed, and the lower air duct 15 is opened; in the heating mode of the air conditioner, the upper air duct 14 is opened and the lower air duct 15 is closed. The opening and closing of the upper duct 14 and the lower duct 15 can adjust the direction of the air flow during cooling and heating of the air conditioner.

Further, the air conditioner further includes: an upper wind shielding mechanism 51 disposed in the cavity of the housing 10, at least a portion of the upper wind shielding mechanism 51 being movably disposed to open or close the upper wind tunnel 14; and a lower wind shielding mechanism 52 disposed in the cavity of the housing 10, at least a portion of the lower wind shielding mechanism 52 being movably disposed to open or close the lower wind tunnel 15. This facilitates control of the opening and closing of the upper duct 14 and the lower duct 15.

By adopting the scheme, when the air conditioner goes out air (namely, the fan is in the air outlet state of the upper air supply outlet, and air enters the upper air supply outlet from the upper air supply outlet and is blown out), the upper air duct 14 is closed through the upper wind shielding mechanism, so that air only enters the lower air duct 15, the influence on air outlet caused by air entering the upper air duct 14 is avoided, when the air conditioner goes out air (namely, the fan is in the air outlet state of the lower air supply outlet, and the air enters the lower air outlet from the lower air supply outlet), the lower air duct 15 is closed through the lower wind shielding mechanism, so that air only enters the upper air duct 14, and the influence on air outlet caused by air entering the lower air duct 15 is avoided. Therefore, the air output of the air conditioner can be improved, and the heat exchange efficiency is improved. When the fan is in an air outlet state of the upper air supply outlet, the upper air supply outlet is opened, the lower air supply outlet is closed, the upper air duct 14 is closed, and the lower air duct 15 is opened; and under the condition that the fan is in the air outlet state of the lower air supply outlet, the lower air supply outlet is opened, the upper air supply outlet is closed, the upper air duct 14 is opened, and the lower air duct 15 is closed.

Optionally, the upper wind blocking mechanism comprises: an upper baffle rotatably provided in the upper duct 14 to open or close the upper duct 14; the upper driving part is in driving connection with the upper baffle to drive the upper baffle to rotate. This causes the upper shutter to rotate by the upper driving unit, thereby opening or closing the upper duct 14 by the upper shutter. The scheme has simple structure and is convenient to control. Specifically, the lower end opening of the upper air duct 14 is used for communicating with the air induction port, the upper baffle plate is arranged at the lower end opening of the upper air duct 14, and the rotation of the upper baffle plate can open or close the lower end opening of the upper air duct 14.

Optionally, the shape of the top baffle matches the cross-sectional shape of the top air duct 14, and the top baffle mechanism further includes: the pivot, pivot and last baffle are connected, and the one end of pivot is worn to establish on shell 10, and the other end of pivot and the drive shaft connection of last drive division. The rotation of the upper baffle plate can be conveniently realized by arranging the rotating shaft.

Specifically, there are two upper air ducts 14, and on the horizontal projection plane of the air conditioner, the two upper air ducts 14 are respectively located at two sides of the fan 30; the number of the lower air ducts 15 is two, and the two lower air ducts 15 are respectively positioned at two sides of the fan 30; the number of the induced draft openings 31 is two, and the two induced draft openings 31 are respectively located at two sides of the fan 30. Through this setting, can improve the air conditioner's air volume.

In this embodiment, the lower portion of the housing 10 further has a lower air inlet 16, the lower air inlet 16 and the lower air vent 13 are respectively located at two sides of the housing 10, the lower air inlet 16 is communicated with one lower air duct 15, and the lower air vent 13 is communicated with the other lower air duct 15. When the air conditioner is used for refrigeration, the lower air inlet 16 is used for air inlet, namely, the lower air inlet 16 and the lower ventilation opening 13 simultaneously supply air during refrigeration, so that the air volume can be improved. When the air conditioner heats, because the lower air duct 15 is closed, the lower air inlet 16 can not output air, the lower ventilation opening 13 is communicated with the lower air supply opening, and the air is output from the lower ventilation opening 13. The heating air inlet 12 and the lower air inlet 16 are located on the same side of the housing 10, specifically, on the side facing away from the user, and the lower air vent 13 is located on the side of the housing 10 facing the user.

In this embodiment, the air conditioner further includes: a second filter 22 disposed in the lower duct 15 communicating with the lower vent 13; and a third filter screen 23 arranged at the lower air inlet 16. This filters the air entering the lower duct 15 and prevents impurities from entering.

In this embodiment, a heat exchange cavity is provided in the casing 10 and located between the fan 30 and the cooling air outlet 11, a part of the cavity of the heat exchange cavity forms the upper air duct 14, and the air conditioner further includes a heat exchanger 60, and the heat exchanger 60 is disposed in the heat exchange cavity of the casing 10. The heat exchanger 60 exchanges heat with air entering the heat exchange chamber, thereby performing cooling or heating. Alternatively, the heat exchanger 60 has a V-shaped structure, so that the contact area and the heat exchange effect can be improved. The heating air inlet 12 is arranged at a position higher than the heat exchanger 60.

In the present embodiment, the fan 30 includes: the volute is provided with an upper air supply outlet and a lower air supply outlet; the centrifugal fan blade is rotatably arranged in the induced draft cavity of the volute; the rotary volute tongue is rotatably arranged in the induced air cavity, the rotary volute tongue is provided with a first position for closing the lower air supply outlet and opening the upper air supply outlet, and the rotary volute tongue is also provided with a second position for closing the upper air supply outlet and opening the lower air supply outlet. The rotation of the centrifugal fan blade realizes air suction, and the upward air outlet or the downward air outlet of the fan 30 can be realized through the position switching of the rotary volute tongue.

Optionally, the rotatory volute tongue is the arc structure, and the fan still includes: the arc-shaped rack is arranged on the rotary volute tongue; the gear is rotatably arranged on the volute and is meshed with the arc-shaped rack so as to drive the rotary volute tongue to rotate. When the gear rotates, the gear drives the arc-shaped rack to rotate, and the arc-shaped rack drives the rotary volute tongue to rotate, so that the position switching of the rotary volute tongue is realized.

Optionally, the inner wall of the induced draft chamber has a guide groove, and the blower further comprises a guide structure disposed on the rotating volute tongue, the guide structure being located in the guide groove to move along the guide groove. Therefore, the rotary volute tongue can be guided by matching the guide structure and the guide groove, so that the rotary volute tongue can move stably, the shaking is reduced, and the reliability is improved.

Optionally, the guide structure comprises: the first roller is rotatably arranged on the rotary volute tongue, the axis of the first roller is parallel to the rotating center line of the rotary volute tongue, and the first roller is abutted against the side wall of the guide groove; the second roller is rotatably arranged on the rotary volute tongue, the axis of the second roller is perpendicular to the rotation center line of the rotary volute tongue, and the second roller is abutted against the bottom wall of the guide groove. Through the first idler wheel and the second idler wheel with different axes, the rotating volute tongue is limited and guided in different directions, so that the rotating volute tongue can move stably. The first roller and the second roller are adopted, so that the direct contact between the rotating volute tongue and the inner wall of the air inducing cavity is avoided, the friction resistance is reduced, and the movement is smooth.

Optionally, the rotating volute tongue comprises: the arc-shaped plate is used for plugging the upper air outlet or the lower air outlet, and a gap is formed between the arc-shaped plate and the inner wall of the induced air cavity; the arc-shaped blocking rib is arranged on the arc-shaped plate, and one part of the arc-shaped blocking rib is positioned in the guide groove. A gap is arranged between the arc-shaped plate and the inner wall of the induced draft cavity, so that the rotating volute tongue can rotate conveniently, and the clamping is avoided. The arc-shaped blocking ribs extending into the guide grooves can block the gaps, air leakage at the gaps is avoided, and sealing performance and air quantity of the fan are improved. Optionally, a gap is formed between the arc-shaped blocking rib and the inner wall of the induced draft cavity, so that friction force generated by contact between the arc-shaped blocking rib and the inner wall of the induced draft cavity is avoided. Moreover, the arc-shaped blocking rib is provided with an avoiding groove for avoiding the guide structure. The avoiding groove can avoid the interference of the guide structure and the arc-shaped blocking rib, so that the arrangement of the guide structure is convenient.

When the air conditioner is used for refrigerating and heating, the air inlet and outlet paths are changed, when the air conditioner is used for refrigerating, the lower ventilation opening on the front side of the bottom and the lower air inlet of the rear cover simultaneously supply air, after passing through the internal air duct, the air is discharged from the refrigerating air outlet on the top, and the heating air inlet on the back side of the upper part is closed; when heating, the top refrigerating air outlet is closed, the heating air inlet on the back of the head part is opened for air inlet, and air is exhausted from the lower vent on the front side of the bottom part after passing through the internal air channel. According to the scheme, different air ports are adopted for air inlet and outlet on the upper part of the shell, so that the number of moving mechanisms is reduced, and the structure of the air conditioner is simpler. The first filter screen is arranged at the position of the heating air inlet, and air outlet of the air conditioner is not affected.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioner, comprising:

the air conditioner comprises a shell (10), wherein the upper part of the shell (10) is provided with a refrigerating air outlet (11) and a heating air inlet (12) which can be opened and closed;

the first filter screen (21) is arranged at the heating air inlet (12);

in the air conditioner in a cooling mode, the heating air inlet (12) is closed, and the cooling air outlet (11) is opened to discharge air; in the heating mode of the air conditioner, the cooling air outlet (11) is closed, and the heating air inlet (12) is opened to supply air.

2. The air conditioner according to claim 1, wherein the lower portion of the casing (10) has a lower vent (13), the air conditioner further comprising:

the fan (30) is arranged in a cavity of the shell (10) between the refrigerating air outlet (11) and the lower ventilation opening (13), and the fan (30) is provided with an upper air supply opening and a lower air supply opening which can be opened and closed;

the air conditioner is characterized in that air is supplied to the lower ventilation opening (13) to supply air to the fan (30) in the refrigeration mode, the lower air supply opening is closed, the upper air supply opening is opened to supply air upwards, and the refrigeration air outlet (11) is communicated with the upper air supply opening; the air conditioner is in under the mode of heating, heat air intake (12) for fan (30) air supply, go up the supply-air outlet and close, the supply-air outlet is opened in order to supply air downwards down, lower vent (13) with supply-air outlet intercommunication and air-out down.

3. The air conditioner according to claim 1, further comprising:

the air outlet air deflector (41) is rotatably arranged at the refrigerating air outlet (11);

and the air inlet air deflector (42) is rotatably arranged at the heating air inlet (12).

4. The air conditioner according to claim 1, wherein the cooling air outlet (11) is located at a top wall of the housing (10), and the heating air inlet (12) is located at an upper portion of a side wall of the housing (10).

5. The air conditioner according to claim 2, wherein the fan (30) has an air induction opening (31), the area above the fan (30) in the housing (10) has an upper air duct (14), the upper air duct (14) is used for communicating the cooling air outlet (11) or the heating air inlet (12) with the air induction opening (31), a lower air duct (15) is arranged between the fan (30) and the housing (10), and the lower air duct (15) is used for supplying air from the lower part of the air conditioner to the air induction opening (31); wherein, in the cooling mode of the air conditioner, the upper air duct (14) is closed, and the lower air duct (15) is opened; in the heating mode of the air conditioner, the upper air duct (14) is opened, and the lower air duct (15) is closed.

6. The air conditioner according to claim 5, further comprising:

an upper wind shielding mechanism (51) arranged in the cavity of the shell (10), at least one part of the upper wind shielding mechanism (51) is movably arranged to open or close the upper wind channel (14);

a lower wind shielding mechanism (52) disposed within the cavity of the housing (10), at least a portion of the lower wind shielding mechanism (52) being movably disposed to open or close the lower duct (15).

7. The air conditioner according to claim 5, wherein the number of the upper air ducts (14) is two, and the two upper air ducts (14) are respectively located on two sides of the fan (30) on a horizontal projection plane of the air conditioner; the number of the lower air ducts (15) is two, and the two lower air ducts (15) are respectively positioned on two sides of the fan (30); the number of the air inducing ports (31) is two, and the two air inducing ports (31) are respectively located on two sides of the fan (30).

8. The air conditioner according to claim 7, wherein the lower portion of the housing (10) further has a lower intake vent (16), the lower intake vent (16) and the lower vent (13) being located at both sides of the housing (10), respectively; the lower air inlet (16) is communicated with one lower air duct (15), and the lower ventilation opening (13) is communicated with the other lower air duct (15).

9. The air conditioner according to claim 8, further comprising:

the second filter screen (22) is arranged in the lower air duct (15) communicated with the lower ventilation opening (13);

and the third filter screen (23) is arranged at the lower air inlet (16).

10. The air conditioner according to claim 5, characterized in that a heat exchange cavity is arranged in the casing (10) between the fan (30) and the cooling air outlet (11), a part of the cavity of the heat exchange cavity forms the upper air duct (14), and the air conditioner further comprises a heat exchanger (60), wherein the heat exchanger (60) is arranged in the heat exchange cavity of the casing (10).

11. The air conditioner according to claim 2, wherein the fan (30) comprises:

a volute having the upper supply air outlet and the lower supply air outlet;

the centrifugal fan blade is rotatably arranged in the induced draft cavity of the volute;

the rotary volute tongue is rotatably arranged in the induced air cavity, the rotary volute tongue is provided with a first position for closing the lower air supply outlet and opening the upper air supply outlet, and the rotary volute tongue is also provided with a second position for closing the upper air supply outlet and opening the lower air supply outlet.