Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a machine shell, a heat exchanger assembly and a fan assembly. The fan assembly is arranged in the machine shell and comprises an air duct component and a plurality of centrifugal fans, the centrifugal fans are installed on the air duct component and arranged at intervals in the vertical direction, the rotating axis of each centrifugal fan extends in the front-back direction, an air duct is formed in the air duct component, and each centrifugal fan comprises a wind wheel and a motor. The motor is connected with the wind wheel to drive the wind wheel to rotate, the wind wheel is located in the air duct, an airflow inlet is formed in the rear side of the air duct component, an airflow outlet is formed in the front side of the air duct component, the air duct is communicated with the airflow inlet and the airflow outlet, the airflow inlet is communicated with the air inlet, and the airflow outlet is communicated with the air outlet. According to the air conditioner, the air volume of the air conditioner can be increased, and the performance of the air conditioner is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning field especially is related to an air conditioner. BACKGROUND

[0002] In the related art, the air conditioner comprises a fan assembly and a heat exchanger assembly. The fan assembly is used to drive airflow to enter the air conditioner from an air inlet of the air conditioner, and after heat exchange with the heat exchanger assembly, the airflow is blown out from an air outlet to the indoor to adjust the indoor temperature. The air volume and the air supply distance of the air conditioner affect the refrigeration / heating efficiency and the overall performance of the air conditioner. However, therefore, how to improve the air volume and the air supply distance of the air conditioner is an important direction to study the improvement of the refrigeration / heating efficiency and the overall performance of the air conditioner. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air conditioner. By making the fan assembly comprise an air duct component and a plurality of centrifugal fans, the air volume and the air supply distance of the air conditioner can be improved, and the performance of the air conditioner can be improved. Moreover, the plurality of centrifugal fans are installed in the air duct component, which facilitates the installation and fixation of the plurality of centrifugal fans. By making the rotation axis of each centrifugal fan extend along the front-rear direction, the rear side of the air duct component is formed with an airflow inlet, which can make the airflow enter the air duct substantially along the axial side of the centrifugal fan, thereby improving the air intake. The front side of the air duct component is formed with an airflow outlet, which can discharge the airflow entering the air duct from the front airflow outlet after pressurization by the fan wheel. In this way, the airflow can be blown out from the air outlet located on the front side to the indoor, the distance of the airflow flowing from the airflow outlet to the air outlet can be shortened, and the airflow loss can be reduced, thereby further improving the air supply volume and the working efficiency of the fan assembly, which is conducive to improving the refrigeration / heating efficiency and the overall performance of the air conditioner.

[0004] The air conditioner according to the embodiment of the utility model, including: casing, including front shell part and rear shell part, the front shell part is connected in the front side of the rear shell part, the rear shell part forms and enters the air inlet, the front shell part forms and goes out the air outlet, heat exchanger subassembly, be located in the casing inside, fan subassembly, be located in the casing inside, the heat exchanger subassembly is located between the air inlet and the fan subassembly, the fan subassembly includes air duct part and a plurality of centrifugal fan, a plurality of the centrifugal fan is installed to the air duct part and is arranged along the up and down direction interval, the rotation axis of each centrifugal fan extends along the front and back direction, the air duct part is formed with the air duct inside, the centrifugal fan includes wind wheel and motor, the motor is connected with wind wheel to drive the wind wheel rotation, the wind wheel is located in the air duct, the rear side of the air duct part forms and the airflow entrance, the front side of the air duct part forms and the airflow outlet, the air duct is connected with the airflow entrance and the airflow outlet, the airflow entrance is connected with the air inlet, the airflow outlet is connected with the air outlet.

[0005] The air conditioner according to the embodiment of the utility model, by making fan subassembly include air duct part and a plurality of centrifugal fan, can promote the air volume and the air supply distance of air conditioner, promote the performance of air conditioner, and install a plurality of centrifugal fan in air duct part, the installation of a plurality of centrifugal fan is convenient and fixed, by making the rotation axis of each centrifugal fan extend along the front and back direction, the rear side of the air duct part forms and the airflow entrance, can make the airflow enter the air duct approximately along the axial side of centrifugal fan, can improve the air intake, the front side of the air duct part forms and the airflow outlet, can be after the airflow in the air duct is pressurized from the front airflow outlet, this is convenient to blow the airflow from the air outlet located in the front side to the room, can shorten the distance of airflow from the airflow outlet to the air outlet, reduce airflow loss, thereby can further improve the air supply volume, improve the working efficiency of fan subassembly, it is favorable to promote the refrigeration / heat efficiency and overall performance of air conditioner.

[0006] According to some embodiments of the utility model, the air duct part includes a detachably connected air duct frame and a wind wheel support, the wind wheel support is connected to the front side of the air duct frame and cooperates with the air duct frame to define the air duct, the air duct frame is provided with the airflow inlet, the wind wheel support is provided with the airflow outlet, and the centrifugal fan is installed on the wind wheel support.

[0007] According to some embodiments of the utility model, the wind wheel support includes a support plate and an airflow outlet frame, the airflow outlet frame surrounds the outer circumferential side of the support plate, the airflow outlet frame defines the airflow outlet, and the centrifugal fan is installed on the support plate.

[0008] According to some embodiments of the present application, the projection of the wind wheel on a reference plane is located within the projection of the support plate on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan.

[0009] According to some embodiments of the present application, the projection of the air outlet on a reference plane is located on the outer circumferential side of the projection of the support plate on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan.

[0010] According to some embodiments of the present application, the support plate is provided with mounting holes for mounting the centrifugal fan, the number of the mounting holes is the same as the number of the centrifugal fan and each mounting hole corresponds to one centrifugal fan, the wind wheel is adapted to be mounted into the air duct through the corresponding mounting hole, and the wind wheel support and the front shell component define a containing space, and the motor is located in the containing space.

[0011] According to some embodiments of the present application, the wind wheel support comprises a first mounting ring, the first mounting ring is arranged on the front side of the support plate and surrounds the mounting holes, the outer circumferential wall of the first mounting ring is provided with a plurality of first fixing columns, the first fixing columns are arranged at intervals along the circumference of the first mounting ring, the centrifugal fan further comprises a motor cover, the motor is accommodated in the motor cover, the motor cover is formed with a through hole, the motor shaft of the motor passes through the through hole and is connected with the wind wheel, the motor cover is formed with a first connecting flange, the first connecting flange abuts against the first mounting ring, and the first connecting flange is connected with the first fixing column through a first fastener.

[0012] According to some embodiments of the present application, the front shell component comprises a front shell and an air outlet support, the air outlet support is arranged on the inner side of the front shell, the air outlet support abuts against the front side of the airflow outlet frame, the air outlet support defines an air outlet channel, and the air outlet channel communicates the airflow outlet and the air outlet.

[0013] According to some embodiments of the present application, the central axis of the air outlet channel extends obliquely in a direction away from the center of the air duct component from back to front.

[0014] According to some embodiments of the present application, the front shell and the air outlet support are integrally formed.

[0015] According to some embodiments of the present application, the wind wheel support and the front shell component define a containing space, the motor is located in the containing space, and the air outlet support is located on the outer circumferential side of the containing space.

[0016] According to some embodiments of the present application, the airflow outlet comprises a plurality of sub-airflow outlets, the plurality of sub-airflow outlets are arranged along the circumference of the airflow outlet frame, the air outlet comprises a plurality of sub-air outlets, the plurality of sub-air outlets are arranged along the circumference of the airflow outlet frame, and the plurality of sub-air outlets and the plurality of sub-airflow outlets are respectively opposite and communicated.

[0017] According to some embodiments of the present application, the plurality of sub-airflow outlets comprises a first sub-airflow outlet, a second sub-airflow outlet, a third sub-airflow outlet and a fourth sub-airflow outlet, the plurality of sub-air outlets comprises a first sub-air outlet, a second sub-air outlet, a third sub-air outlet and a fourth sub-air outlet, the first sub-airflow outlet and the second sub-airflow outlet are respectively located at the upper and lower ends of the airflow outlet frame, the third sub-airflow outlet and the fourth sub-airflow outlet are respectively located at the left and right ends of the airflow outlet frame, the first sub-air outlet is opposite and communicated with the first sub-airflow outlet, the second sub-air outlet is opposite and communicated with the second sub-airflow outlet, the third sub-air outlet is opposite and communicated with the third sub-airflow outlet, and the fourth sub-air outlet is opposite and communicated with the fourth sub-airflow outlet.

[0018] The first sub-air outlet is provided with a first air deflector, the first air deflector is rotatable to open or close the first sub-air outlet, the second sub-air outlet is provided with a second air deflector, the second air deflector is rotatable to open or close the second sub-air outlet, and the rotation axes of the first air deflector and the second air deflector both extend along the left-right direction.

[0019] According to some embodiments of the present application, the air duct frame comprises an air duct frame body and an air duct partition plate, the air duct partition plate is arranged in the air duct frame body and abuts against the wind wheel support to separate the air duct into a plurality of sub-air ducts arranged along the up-down direction, the front side of the air duct partition plate is provided with a avoiding gap, the rear end of the support plate is accommodated in the avoiding gap, the number of the sub-air ducts is the same as the number of the centrifugal fans and corresponds one by one, the wind wheel of each centrifugal fan is located in the corresponding sub-air duct, and the plurality of airflow inlets are sequentially and spacedly arranged along the up-down direction.

[0020] According to some embodiments of the present application, the air duct frame is an integral molding piece, and / or the wind wheel support is an integral molding piece.

[0021] According to some embodiments of the present application, the heat exchanger assembly is mounted and fixed to the rear shell part, and the air duct part is mounted and fixed to the rear shell part.

[0022] According to some embodiments of the present application, the heat exchanger assembly comprises a heat exchanger component, the cross section of the heat exchanger component and the cross section of the air inlet are both U-shaped or arc-shaped bending towards the back.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0025] Figure 1 is a schematic view of an air conditioner indoor unit of an air conditioner according to some embodiments of the present application;

[0026] Figure 2 is Figure 1 an exploded view of the air conditioner indoor unit;

[0027] Figure 3 is Figure 1 a transverse sectional view of the air conditioner indoor unit;

[0028] Figure 4 is Figure 1 a longitudinal sectional view of the air conditioner indoor unit;

[0029] Figure 5 is Figure 1 a schematic view of the air conditioner indoor unit, wherein the air conditioner indoor unit does not comprise a front shell component;

[0030] Figure 6 is Figure 2 an exploded view of the fan assembly;

[0031] Figure 7 is Figure 6 an exploded view of a single centrifugal fan.

[0032] REFERENCE SIGNS:

[0033] 100, air conditioner indoor unit;

[0034] 10, casing; 11, front shell component; 12, front shell; 13, air outlet support; 14, air outlet passage; 15, air outlet; 151, first sub-air outlet; 152, second sub-air outlet; 153, third sub-air outlet; 154, fourth sub-air outlet; 16, rear shell component; 17, air inlet;

[0035] 20, heat exchanger assembly; 201, heat exchanger component; 21, fan assembly; 22, centrifugal fan; 23, impeller; 24, motor;

[0036] 25, air duct component; 26, air duct; 27, sub-air duct; 28, air inlet; 29, air outlet; 30, sub-air outlet; 31, first sub-air outlet; 32, second sub-air outlet; 33, third sub-air outlet; 34, fourth sub-air outlet; 35, first air deflector; 36, second air deflector; 37, third air deflector; 38, fourth air deflector;

[0037] 40, air duct frame; 41, air duct frame body; 42, air duct partition; 421, avoiding gap;

[0038] 43, air wheel support; 44, support plate; 45, air outlet frame; 46, mounting hole; 47, containing space; 48, first mounting ring; 481, first fixing column;

[0039] 49, motor cover; 50, through hole; 51, first connecting flange; 53, support body; 54, second mounting ring; 55, second fixing column; 56, second connecting flange; 57, motor cover; 58, motor support. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0041] Reference is made below Figures 1-7 The air conditioner according to the embodiments of the present application is described.

[0042] Reference is made below Figures 1-3 The air conditioner according to the embodiments of the present application comprises a casing 10, a heat exchanger assembly 20 and a fan assembly 21.

[0043] For example, the air conditioner is a split floor type air conditioner, and the air conditioner comprises an air conditioner indoor unit 100 and an air conditioner outdoor unit. The air conditioner indoor unit 100 comprises the above-mentioned casing 10, heat exchanger assembly 20 and fan assembly 21.

[0044] The casing 10 comprises a front casing component 11 and a rear casing component 16, the front casing component 11 is connected to the front side of the rear casing component 16, the rear casing component 16 is formed with an air inlet 17, and the front casing component 11 is formed with an air outlet 15. The air outlet 15 of the air conditioner can comprise a plurality of sub-air outlets 15, for example, the air conditioner can comprise four sub-air outlets 15, two of which are distributed on the left and right sides of the front casing component 11, and the other two are arranged in the up-down direction. By making the air outlet 15 comprise a plurality of sub-air outlets 15, the air outlet range of the air conditioner can be improved, and the performance of the air conditioner can be improved.

[0045] The heat exchanger assembly 20 is arranged in the casing 10, and the fan assembly 21 is arranged in the casing 10. The heat exchanger assembly 20 is located between the air inlet 17 and the fan assembly 21. The fan assembly 21 comprises the air duct component 25 and a plurality of centrifugal fans 22. By arranging the fan assembly 21 to comprise the air duct component 25 and the plurality of centrifugal fans 22, the air volume and the air supply distance of the air conditioner can be improved, and the refrigeration / heating efficiency and the performance of the air conditioner can be improved.

[0046] The plurality of centrifugal fans 22 are arranged in the air duct component 25 and spaced apart in the up-down direction. By arranging the plurality of centrifugal fans 22 in the air duct component 25 and spaced apart in the up-down direction, the air conditioner can achieve large air volume and large air supply distance in the up-down direction, and the refrigeration / heating efficiency and the performance of the air conditioner can be improved.

[0047] The rotation axis of each centrifugal fan 22 extends in the front-rear direction. The air duct component 25 is formed with an air duct 26. The centrifugal fan 22 comprises a fan wheel 23 and a motor 24. The motor 24 is connected to the fan wheel 23 to drive the fan wheel 23 to rotate. The fan wheel 23 is located in the air duct 26. The rear side of the air duct component 25 is formed with an air inlet 28. The front side of the air duct component 25 is formed with an air outlet 29. The air duct 26 communicates the air inlet 28 and the air outlet 29. The air inlet 28 communicates the air inlet 17. The air outlet 29 communicates the air outlet 15. By arranging the rotation axis of each centrifugal fan 22 to extend in the front-rear direction, and forming the air inlet 28 on the rear side of the air duct component 25, the air flow can enter the air duct 26 substantially along the axial side of the centrifugal fan 22, and the air inlet volume can be improved. By forming the air outlet 29 on the front side of the air duct component 25, the air flow entering the air duct 26 can be pressurized by the fan wheel 23 and discharged from the air outlet 29 in front, so that the air flow can be conveniently blown out from the air outlet 15 located in front to the indoor, the distance of the air flow flowing from the air outlet 29 to the air outlet 15 can be shortened, the air flow loss can be reduced, and thus the air supply volume can be further improved, the working efficiency of the fan assembly 21 can be improved, and the refrigeration / heating efficiency and the overall performance of the air conditioner can be improved.

[0048] According to the air conditioner provided by the embodiment of the present application, the fan assembly 21 comprises the air duct component 25 and the plurality of centrifugal fans 22, so that the air volume and the air supply distance of the air conditioner can be improved, the performance of the air conditioner can be improved, the plurality of centrifugal fans 22 are all installed on the air duct component 25, the installation and fixation of the plurality of centrifugal fans 22 are facilitated, the rotating axis of each centrifugal fan 22 extends along the front-rear direction, the rear side of the air duct component 25 is formed with the air inlet 28, the airflow can enter the air duct 26 along the axial side of the centrifugal fan 22, the air inlet amount can be improved, the front side of the air duct component 25 is formed with the air outlet 29, the airflow entering the air duct 26 can be discharged from the front air outlet 29 after being pressurized by the fan wheel 23, so that the airflow can be blown out from the air outlet 15 located on the front side to the indoor, the distance of the airflow flowing from the air outlet 29 to the air outlet 15 can be shortened, the airflow loss can be reduced, so that the air supply amount can be further improved, the working efficiency of the fan assembly 21 can be improved, and the refrigeration / heating efficiency and the overall performance of the air conditioner can be improved.

[0049] According to some embodiments of the present application, referring to Figures 4-6 The air duct component 25 comprises the air duct frame 40 and the fan wheel support 43 which are detachably connected, the fan wheel support 43 is connected to the front side of the air duct frame 40 and cooperates with the air duct frame 40 to define the air duct 26, the air inlet 28 is arranged on the air duct frame 40, the air outlet 29 is arranged on the fan wheel support 43, and the centrifugal fan 22 is installed on the fan wheel support 43. By making the air duct component 25 comprise the fan wheel support 43 and the centrifugal fan 22 be installed on the fan wheel support 43, the fan wheel support 43 can fix the centrifugal fan 22 and prevent the centrifugal fan 22 from moving in the air conditioner. By making the air duct frame 40 and the fan wheel support 43 be detachable, the relevant personnel can be more convenient when cleaning or maintaining the air duct frame 40 and the fan wheel support 43.

[0050] According to some embodiments of the present application, referring to Figure 6The wind wheel support 43 comprises a support plate 44 and an airflow outlet frame 45, the airflow outlet frame 45 is arranged around the outer circumferential side of the support plate 44, the airflow outlet 29 is defined in the airflow outlet frame 45, and the centrifugal fan 22 is installed on the support plate 44. By arranging the wind wheel support 43 to comprise the airflow outlet frame 45, the airflow outlet frame 45 is arranged around the outer circumferential side of the support plate 44, and the airflow outlet 29 is formed in the airflow outlet frame 45, the airflow outlet 29 is arranged on the outer circumferential side of the wind wheel 23, and the wind wheel 23 is a centrifugal wind wheel 23, so that the air thrown out from the circumferential direction of the centrifugal wind wheel 23 can be discharged through the airflow outlet 29 on the outer circumferential side of the wind wheel 23, the air flow is smooth, the air flow loss is reduced, the air blown out from the centrifugal fan 22 can be discharged through the airflow outlet 29 of the airflow outlet frame 45, the air flow is guided to the air outlet 15, and the working efficiency of the fan assembly 21 is further improved.

[0051] According to some embodiments of the present application, referring to Figure 5 and Figure 6 , the projection of the wind wheel 23 on the reference plane is located in the projection of the support plate 44 on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan 22. Since the wind wheel 23 is a centrifugal wind wheel 23, when the air conditioner is working, the air flow enters the air duct 26 from the axial direction of the centrifugal wind wheel 23, and is thrown out along the circumferential direction of the centrifugal wind wheel 23. By arranging the projection of the wind wheel 23 on the reference plane to be located in the projection of the support plate 44 on the reference plane, the airflow outlet 29 can be arranged on the outer circumferential side of the wind wheel 23, the airflow outlet 29 can more fully receive the air flow thrown out from the circumferential direction of the centrifugal wind wheel 23, the loss caused by the air flow being blocked is reduced, and the air volume and working efficiency of the air conditioner are improved.

[0052] According to some embodiments of the present application, referring to Figure 3 and Figure 4 , the projection of the air outlet 15 on the reference plane is located on the outer circumferential side of the projection of the support plate 44 on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan 22. Since the wind wheel 23 is a centrifugal wind wheel 23, when the air conditioner is working, the air flow enters the air duct 26 from the axial direction of the centrifugal wind wheel 23, and is thrown out along the circumferential direction of the centrifugal wind wheel 23. By arranging the projection of the air outlet 15 on the reference plane to be located on the outer circumferential side of the projection of the support plate 44 on the reference plane, the airflow outlet 29 can more fully receive the air flow thrown out from the circumferential direction of the centrifugal wind wheel 23, the loss caused by the air flow being blocked is reduced, and the efficiency of the air conditioner is improved.

[0053] According to some embodiments of the present application, referring to Figure 6The mounting holes 46 are arranged on the support plate 44 for mounting the centrifugal fan 22, the number of the mounting holes 46 is same as the number of the centrifugal fan 22 and each mounting hole 46 corresponds to one centrifugal fan 22, the impeller 23 is adapted to be mounted into the air duct 26 through the corresponding mounting hole 46, and the motor 24 is located in the accommodating space 47 defined between the impeller support 43 and the front shell part 11. By arranging the mounting holes 46 on the support plate 44 for mounting the centrifugal fan 22, the number of the mounting holes 46 is same as the number of the centrifugal fan 22 and each mounting hole 46 corresponds to one centrifugal fan 22, and the diameter of the mounting hole 46 is slightly larger than the diameter of the impeller 23, the impeller 23 is conveniently mounted into the air duct 26 through the mounting hole 46. By defining the accommodating space 47 between the impeller support 43 and the front shell part 11 and locating the motor 24 in the accommodating space 47, the space between the front shell part 11 and the impeller 23 can be fully utilized, so that the overall structure is compact.

[0054] According to some embodiments of the present application, referring to Figure 6 and Figure 7 The impeller support 43 comprises a first mounting ring 48, the first mounting ring 48 is arranged on the front side of the support plate 44 and surrounds the mounting hole 46, the outer peripheral wall of the first mounting ring 48 is provided with a plurality of first fixing columns 481, the plurality of first fixing columns 481 are arranged at intervals along the circumferential direction of the first mounting ring 48, the centrifugal fan 22 further comprises a motor cover 49, the motor 24 is accommodated in the motor cover 49, the motor cover 49 is formed with a penetrating hole 50, the motor shaft 24 of the motor 24 penetrates through the penetrating hole 50 and is connected with the impeller 23, the motor cover 49 is formed with a first connecting flange 51, the first connecting flange 51 abuts against the first mounting ring 48 and the first connecting flange 51 is connected with the first fixing column 481 through a first fastener. By arranging the first mounting ring 48 on the support plate 44 and surrounding the mounting hole 46, and by forming the first connecting flange 51 on the motor cover 49, the abutment between the first connecting flange 51 and the first mounting ring 48 can strengthen the peripheral structure of the mounting hole 46, and can realize the sealing between the fan assembly 21 and the impeller support 43, reducing or avoiding the leakage of airflow in the air duct 26 from the periphery of the mounting hole 46. By connecting the first connecting flange 51 and the first fixing column 481 through the first fastener, the fan assembly 21 can be conveniently mounted on the impeller support 43, and the connection between the motor cover 49 and the first mounting ring 48 can be more firm. By arranging the plurality of first fixing columns 481 on the outer peripheral wall of the first mounting ring 48 at intervals along the circumferential direction of the first mounting ring 48, and by connecting the first connecting flange 51 and the first fixing column 481 through the first fastener, the first mounting ring 48 and the motor cover 49 can be connected and fixed along the circumferential direction of the first mounting ring 48 by the connection action of the first fastener, so that the connection between the first mounting ring 48 and the motor cover 49 is more sufficient.

[0055] For example, the number of the first fixing columns 481 can be three, four, five, etc., and the number of the first fasteners can be three, four, five, etc.

[0056] For example, the motor cover 49 comprises a motor support 58 and a motor cover 57 which are detachably connected, the motor support 58 and the motor cover 57 jointly define a motor cavity for accommodating the motor 24, the motor support 58 is provided with the through hole 50, and the motor cover 57 is arranged on the side of the motor support 58 away from the impeller 23.

[0057] For example, the motor support 58 comprises a support body 53 and a second mounting ring 54, the support body 53 is formed with the through hole 50, the second mounting ring 54 is arranged on the front side of the support body 53 and surrounds the through hole 50, the outer peripheral wall of the second mounting ring is provided with a plurality of second fixing columns 55, the plurality of second fixing columns 55 are arranged at intervals along the circumferential direction of the second mounting ring 54, the motor cover 57 is formed with a second connecting flange 56, and the second connecting flange 56 is connected with the second fixing columns 55 through the second fasteners.

[0058] According to some embodiments of the present application, referring to Figures 1-3 , the front shell component 11 comprises a front shell 12 and an air outlet support 13, the air outlet support 13 is arranged on the inner side of the front shell 12, the air outlet support 13 abuts against the front side of the airflow outlet frame 45, the air outlet support 13 defines an air outlet channel 14, and the air outlet channel 14 communicates the airflow outlet 29 and the air outlet 15. By making the front shell component 11 comprise the air outlet support 13 and making the air outlet support 13 abut against the front side of the airflow outlet frame 45, the air outlet support 13 can guide the airflow blown out from the airflow outlet 29 to the air outlet 15 and finally discharged from the air conditioner; by making the air outlet support 13 abut against the front side of the airflow outlet frame 45, the air leakage between the air outlet support 13 and the airflow outlet 29 can be reduced, more airflow can flow to the air outlet 15 through the air outlet channel 14, the air volume of the air conditioner is increased, and the performance of the air conditioner is improved.

[0059] According to some embodiments of the present application, referring to Figure 3 , the central axis of the air outlet channel 14 extends obliquely in the direction from back to front towards the direction away from the center of the air duct component 25. Since the impeller 23 is a centrifugal impeller 23, when the air conditioner is working, the airflow enters the centrifugal impeller 23 from the axial direction of the centrifugal impeller 23 and is thrown out from the centrifugal impeller 23 in the radial direction, and the flow direction of the air away from the centrifugal impeller 23 is generally away from the center of the air duct component 25. By making the central axis of the air outlet channel 14 extend obliquely in the direction from back to front towards the direction away from the center of the air duct component 25, the air outlet channel 14 can be made to be relatively consistent with the flow direction of the airflow after leaving the centrifugal impeller 23, the air outlet loss caused by the airflow being blocked can be reduced, the efficiency of the air conditioner is improved, and the performance of the air conditioner is improved.

[0060] According to some embodiments of the present application, referring to Figure 3 The front shell 12 is integrally formed with the air outlet support 13. By integrally forming the front shell 12 with the air outlet support 13, the number of parts of the air conditioner can be reduced, the installation steps can be reduced, and the installation efficiency can be improved.

[0061] According to some embodiments of the present application, referring to Figures 3-5 The air wheel support 43 and the front shell component 11 define a containing space 47, the motor 24 is located in the containing space 47, and the air outlet support 13 is located on the outer circumferential side of the containing space 47. By defining the containing space 47 between the air wheel support 43 and the front shell component 11, and locating the motor 24 in the containing space 47, the space between the front shell component 11 and the air wheel 23 can be fully utilized, so that the overall structure is compact. In addition, the air wheel support 43 and the front shell component 11 can also protect the motor 24 from being damaged by contact with dust or condensed water. By locating the air outlet support 13 on the outer circumferential side of the containing space 47, the air outlet support 13 can avoid occupying the space in the front-rear direction, reducing the size of the air conditioner in the front-rear direction, and making the air conditioner structure compact. In addition, the position of the air outlet support 13 can be closer to the position of the airflow after leaving the air wheel 23, reducing the air outlet loss of this part of the airflow, improving the efficiency of the air conditioner, and improving the performance of the air conditioner.

[0062] According to some embodiments of the present application, referring to Figures 3-5 The airflow outlet 29 includes a plurality of sub-airflow outlets 30, the plurality of sub-airflow outlets 30 are arranged in a circumferential direction of the airflow outlet 15 frame, the air outlet 15 includes a plurality of sub-air outlets 15, the plurality of sub-air outlets 15 are arranged in a circumferential direction of the airflow outlet 15 frame, and the plurality of sub-air outlets 15 and the plurality of sub-airflow outlets 30 are respectively opposite and communicated. By making the air outlet 15 include a plurality of sub-air outlets 15, the air outlet area of the air conditioner can be increased, the air outlet range of the air conditioner can be improved, and the performance of the air conditioner can be improved. By arranging the plurality of sub-air outlets 15 in a circumferential direction of the airflow outlet 15 frame, the air conditioner can well regulate the temperature of multiple areas. By making the plurality of sub-air outlets 15 and the plurality of sub-airflow outlets 30 respectively opposite and communicated, the air blown out of the air wheel 23 in different directions can enter the air outlet channel 14 through the plurality of sub-airflow outlets 30, and then exit the air conditioner through the corresponding sub-air outlets 15, so that each sub-air outlet 15 has sufficient air outlet volume.

[0063] According to some embodiments of the present application, referring to Figures 3-5The plurality of sub-airflow outlets 30 include a first sub-airflow outlet 31, a second sub-airflow outlet 32, a third sub-airflow outlet 33, and a fourth sub-airflow outlet 34, and the plurality of sub-air outlets 15 include a first sub-air outlet 151, a second sub-air outlet 152, a third sub-air outlet 153, and a fourth sub-air outlet 154. The first sub-airflow outlet 31 and the second sub-airflow outlet 32 are respectively located at the upper and lower ends of the airflow outlet 15 frame, and the third sub-airflow outlet 33 and the fourth sub-airflow outlet 34 are respectively located at the left and right ends of the airflow outlet 15 frame. The first sub-air outlet 151 is opposite and communicates with the first sub-airflow outlet 31, the second sub-air outlet 152 is opposite and communicates with the second sub-airflow outlet 32, the third sub-air outlet 153 is opposite and communicates with the third sub-airflow outlet 33, and the fourth sub-air outlet 154 is opposite and communicates with the fourth sub-airflow outlet 34.

[0064] By making the air outlet 15 include four sub-air outlets 15, the air outlet area of the air conditioner can be increased, the air outlet range of the air conditioner can be improved, and the performance of the air conditioner can be improved. By making the first sub-air outlet 151 opposite and communicating with the first sub-airflow outlet 31, the second sub-air outlet 152 opposite and communicating with the second sub-airflow outlet 32, the third sub-air outlet 153 opposite and communicating with the third sub-airflow outlet 33, and the fourth sub-air outlet 154 opposite and communicating with the fourth sub-airflow outlet 34, the wind blown out of the fan wheel 23 in different directions can exit the fan wheel 23 through the plurality of sub-airflow outlets 30 and then exit the air conditioner through the corresponding sub-air outlets 15, so that each sub-air outlet 15 has sufficient air outlet volume.

[0065] The first sub-air outlet 151 is provided with a first air deflector 35, the second sub-air outlet 152 is provided with a second air deflector 36, and the first air deflector 35 and the second air deflector 36 are rotatable to open or close the first sub-air outlet 151 and the second sub-air outlet 152, respectively. The rotation axes of the first air deflector 35 and the second air deflector 36 both extend in the left-right direction.

[0066] For example, the third sub-air outlet 153 is provided with a third air deflector 37, the fourth sub-air outlet 154 is provided with a fourth air deflector 38, and the third air deflector 37 and the fourth air deflector 38 are rotatable to open or close the third sub-air outlet 153 and the fourth sub-air outlet 154, respectively. The rotation axes of the third air deflector 37 and the fourth air deflector 38 both extend in the up-down direction. Each sub-air outlet 15 is provided with an air deflector, and each air deflector can be controlled independently, so that the opening and closing of each sub-air outlet 15 and the adjustment of the air outlet direction are independently controlled. The air outlet volume, air outlet range, and air outlet direction of the air conditioner can be adjusted, and the air outlet mode of the air conditioner can be diversified.

[0067] For example, the air conditioner has a cooling mode and a heating mode, the first sub-air outlet 151 is located at the upper part of the second sub-air outlet 152. When the air conditioner is in the cooling mode, the first air deflector 35 of the air conditioner is turned to open the first sub-air outlet 151, the cold air is blown far away, and the cold air directly blowing on the legs is avoided; when the air conditioner is in the heating mode, the second air deflector 36 of the air conditioner is turned to open the second sub-air outlet 152, since the density of the hot air is low, the hot air blown out from the bottom of the air conditioner can naturally float up in the room, so that the temperature in the house is more uniform.

[0068] For example, the air conditioner has a cooling mode and a heating mode, the first sub-air outlet 151 is located at the upper part of the second sub-air outlet 152, the third sub-air outlet 153 is provided with a third air deflector 37, the third air deflector 37 can be turned to open or close the third sub-air outlet 153, the fourth sub-air outlet 154 is provided with a fourth air deflector 38, the fourth air deflector 38 can be turned to open or close the fourth sub-air outlet 154, and the rotation axes of the third air deflector 37 and the fourth air deflector 38 both extend in the up-down direction. When the air conditioner is in the cooling mode, the first air deflector 35 of the air conditioner is turned to open the first sub-air outlet 151, the third air deflector 37 and the fourth air deflector 38 are turned to open the third sub-air outlet 153 and the fourth sub-air outlet 154 respectively, the air outlet range of the air conditioner is increased, the cold air is blown far away, and the cold air directly blowing on the legs is avoided; when the air conditioner is in the heating mode, the second air deflector 36 of the air conditioner is turned to open the second sub-air outlet 152, the third air deflector 37 and the fourth air deflector 38 are turned to open the third sub-air outlet 153 and the fourth sub-air outlet 154 respectively, since the density of the hot air is low, the hot air blown out from the bottom of the air conditioner can naturally float up in the room, so that the temperature in the house is more uniform.

[0069] According to some embodiments of the present application, reference is made to Figure 3 and Figure 6The air duct frame 40 comprises an air duct frame body 41 and an air duct partition plate 42, the air duct partition plate 42 is arranged in the air duct frame body 41, and the air duct partition plate 42 is in abutment with the wind wheel support 43, so that the air duct 26 is divided into a plurality of sub-air ducts 27 arranged in the up-down direction, the number of the sub-air ducts 27 is the same as that of the centrifugal fans 22 and corresponds to the centrifugal fans 22 one by one, the wind wheel 23 of each centrifugal fan 22 is located in the corresponding sub-air duct 27, the air inlet 28 is provided in a plurality of forms, the plurality of air inlets 28 are sequentially and spacedly arranged in the up-down direction, and the number of the air inlets 28 is the same as that of the sub-air ducts 27 and corresponds to the sub-air ducts 27 one by one. By arranging the air duct frame 40 to comprise the air duct partition plate 42, the air duct 26 is divided into a plurality of sub-air ducts 27 arranged in the up-down direction, so that the air blown by different centrifugal fans 22 is located in the corresponding sub-air duct 27, and noise caused by mutual friction and interference of the air blown by different centrifugal fans 22 is avoided. By arranging the air duct partition plate 42 to be in abutment with the wind wheel support 43, the sealing between the air duct partition plate 42 and the wind wheel support 43 is more sufficient, and air leakage between the air duct partition plate 42 and the wind wheel support 43 is prevented, so that the efficiency of the air conditioner is not lost.

[0070] According to some embodiments of the present application, referring to Figure 3 and Figure 6 , the front side of the air duct partition plate 42 is provided with a avoiding gap 421, and the rear end of the support plate 44 is accommodated in the avoiding gap 421, so that interference between the air duct partition plate 42 and the rear end of the support plate 44 is avoided, and the air duct partition plate 42 cannot abut against the wind wheel support 43. Moreover, the overall structure of the fan assembly 21 is compact.

[0071] According to some embodiments of the present application, the air duct frame 40 is an integral molded part. By arranging the air duct frame 40 to be an integral molded part, the number of components of the air conditioner is reduced, the assembly time is reduced, and the assembly efficiency is improved.

[0072] According to some embodiments of the present application, the wind wheel support 43 is an integral molded part. By arranging the wind wheel support 43 to be an integral molded part, the number of components of the air conditioner is reduced, the assembly time is reduced, and the assembly efficiency is improved.

[0073] According to some embodiments of the present application, referring to Figure 2 and Figure 3 , the heat exchanger assembly 20 comprises a heat exchanger component 201, and the cross section of the heat exchanger component 201 and the cross section of the air inlet 17 are both U-shaped or arc-shaped and curved towards the back. For example, the cross section of the heat exchanger component 201 and the cross section of the air inlet 17 are both U-shaped and curved towards the back; or the cross section of the heat exchanger component 201 and the cross section of the air inlet 17 are both arc-shaped and curved towards the back. In this way, the air inlet area is increased, the heat exchange area is increased, and the refrigeration / heating efficiency of the air conditioner is improved.

[0074] The cross section obtained by horizontally cutting the heat exchanger component 201 is the cross section of the heat exchanger component 201; and the cross section obtained by horizontally cutting the air inlet 17 is the cross section of the air inlet 17.

[0075] According to some embodiments of the present application, referring to Figure 2 The heat exchanger assembly 20 is fixedly installed on the rear shell component 16, and the air duct component 25 is fixedly installed on the rear shell component 16. By fixing the heat exchanger assembly 20 and the air duct component 25 on the rear shell component 16, the heat exchanger component 201 and the air duct component 25 can be installed on the rear shell component 16 when the air conditioner is assembled. At this time, the heat exchanger assembly 20, the air duct component 25 and the rear shell component 16 form an integral whole, and then the front shell component 11 is installed on the rear shell component 16, which is convenient for installation.

[0076] For example, the air duct component 25 includes a detachably connected air duct frame 40 and a fan wheel support 43, the fan wheel support 43 is connected to the front side of the air duct frame 40 and cooperates with the air duct frame 40 to define the air duct 26, the air duct frame 40 is provided with the air inlet 28, the fan wheel support 43 is provided with the air outlet 29, and the centrifugal fan 22 is installed on the fan wheel support 43. The outer edge of the fan wheel support 43 is provided with a first connecting hole, the outer edge of the air duct frame 40 is provided with a second connecting hole, the outer edge of the heat exchanger assembly 20 is provided with a third connecting hole, the rear shell component 16 is provided with a fourth connecting hole, and a third fastener is arranged in the first connecting hole, the second connecting hole, the third connecting hole and the fourth connecting hole to fix the air duct component 25 and the heat exchanger assembly 20 on the rear shell component 16.

[0077] According to some embodiments of the present application, referring to Figure 3 The cross section of the heat exchanger component 201 and the cross section of the air inlet 17 are both curved towards the rear. By making the cross section of the heat exchanger component 201 and the cross section of the air inlet 17 both curved towards the rear, the area of the air inlet 17 can be increased, the air inlet amount can be increased, and the air volume of the air conditioner can be improved. The air flow entering the air conditioner from the air inlet 17 can exchange heat with the heat exchanger component 201, and the temperature adjusting capacity of the air conditioner can be improved.

[0078] According to some embodiments of the present application, referring to Figures 1-7 The air conditioner according to some embodiments of the present application is described below.

[0079] In the present embodiment, the air conditioner is a split floor type air conditioner, which includes an air conditioner indoor unit 100 and an air conditioner outdoor unit. The air conditioner indoor unit 100 includes the above-mentioned shell 10, heat exchanger assembly 20 and fan assembly 21.

[0080] The casing 10 comprises a front casing part 11 connected to a front side of a rear casing part 16, and the rear casing part 16 is formed with an air inlet 17, and the front casing part 11 is formed with an air outlet 15.

[0081] The heat exchanger assembly 20 is arranged in the casing 10, and a fan assembly 21 is arranged in the casing 10, the heat exchanger assembly 20 is located between the air inlet 17 and the fan assembly 21, and the fan assembly 21 comprises an air duct part 25 and a plurality of centrifugal fans 22, the plurality of centrifugal fans 22 are mounted to the air duct part 25 and are arranged in the up-down direction.

[0082] The rotation axis of each centrifugal fan 22 extends in the front-rear direction, the air duct part 25 is formed with an air duct 26, the centrifugal fan 22 comprises an impeller 23 and a motor 24, the motor 24 is connected to the impeller 23 to drive the impeller 23 to rotate, the impeller 23 is located in the air duct 26, the rear side of the air duct part 25 is formed with an air inlet 28, the front side of the air duct part 25 is formed with an air outlet 29, the air duct 26 communicates the air inlet 28 and the air outlet 29, the air inlet 28 communicates the air inlet 17, and the air outlet 29 communicates the air outlet 15.

[0083] The air duct part 25 comprises a detachably connected air duct frame 40 and an impeller support 43, the impeller support 43 is connected to the front side of the air duct frame 40 and cooperates with the air duct frame 40 to define the air duct 26, the air inlet 28 is arranged on the air duct frame 40, the air outlet 29 is arranged on the impeller support 43, and the centrifugal fan 22 is mounted to the impeller support 43. The impeller support 43 comprises a support plate 44 and an air outlet frame 45, the air outlet frame 45 surrounds the outer circumferential side of the support plate 44, the air outlet frame 45 defines the air outlet 29, and the centrifugal fan 22 is mounted to the support plate 44. The projection of the impeller 23 on a reference plane is located in the projection of the support plate 44 on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan 22. The projection of the air outlet 15 on the reference plane is located on the outer circumferential side of the projection of the support plate 44 on the reference plane, and the reference plane is perpendicular to the rotation axis of the centrifugal fan 22. The support plate 44 is provided with mounting holes 46 for mounting the centrifugal fan 22, the number of mounting holes 46 is the same as the number of centrifugal fans 22 and corresponds one by one, the impeller 23 is adapted to be mounted into the air duct 26 through the corresponding mounting hole 46, the impeller support 43 and the front casing part 11 define a containing space 47, and the motor 24 is located in the containing space 47.

[0084] The wind wheel support 43 comprises a first mounting ring 48 arranged on the front side of the support plate 44 and surrounding the mounting hole 46, and a plurality of first fixing columns 481 are arranged on the outer circumferential wall of the first mounting ring 48 and are spaced apart along the circumferential direction of the first mounting ring 48. The centrifugal fan 22 further comprises a motor cover 49, and the motor 24 is accommodated in the motor cover 49. The motor cover 49 is provided with a penetrating hole 50, and the motor shaft of the motor 24 penetrates through the penetrating hole 50 and is connected with the wind wheel 23. The motor cover 49 is provided with a first connecting flange 51, the first connecting flange 51 abuts against the first mounting ring 48, and the first connecting flange 51 is connected with the first fixing columns 481 through first fasteners. The motor support 58 comprises a support body 53 and a second mounting ring 54. The support body 53 is provided with a penetrating hole 50, and the second mounting ring 54 is arranged on the front side of the support body 53 and surrounds the penetrating hole 50. The outer circumferential wall of the second mounting ring 54 is provided with a plurality of second fixing columns 55, which are spaced apart along the circumferential direction of the second mounting ring 54. The motor cover 57 is provided with a second connecting flange 56, and the second connecting flange 56 is connected with the second fixing columns 55 through second fasteners.

[0085] The front shell component 11 comprises a front shell 12 and an air outlet support 13 arranged on the inner side of the front shell 12. The air outlet support 13 abuts against the front side of the airflow outlet frame 45. The air outlet support 13 defines an air outlet channel 14 therein, and the air outlet channel 14 communicates the airflow outlet 29 with an air outlet 15. The central axis of the air outlet channel 14 extends in a direction away from the center of the air duct component 25 in the rear-to-front direction. The front shell 12 and the air outlet support 13 are integrally formed. The wind wheel support 43 and the front shell component 11 define an accommodation space 47, and the motor 24 is located in the accommodation space 47. The air outlet support 13 is located on the outer circumferential side of the accommodation space 47.

[0086] The air outlet 29 comprises a plurality of sub-air outlets 30 arranged along the circumference of the air outlet frame 15, the air outlet 15 comprises a plurality of sub-air outlets 15 arranged along the circumference of the air outlet frame 15, and the plurality of sub-air outlets 15 and the plurality of sub-air outlets 30 are respectively opposite and communicated. The plurality of sub-air outlets 30 comprises a first sub-air outlet 31, a second sub-air outlet 32, a third sub-air outlet 33 and a fourth sub-air outlet 34, the plurality of sub-air outlets 15 comprises a first sub-air outlet 151, a second sub-air outlet 152, a third sub-air outlet 153 and a fourth sub-air outlet 154, the first sub-air outlet 31 and the second sub-air outlet 32 are respectively located at the upper and lower ends of the air outlet frame 15, the third sub-air outlet 33 and the fourth sub-air outlet 34 are respectively located at the left and right ends of the air outlet frame 15, the first sub-air outlet 151 is opposite and communicated with the first sub-air outlet 31, the second sub-air outlet 152 is opposite and communicated with the second sub-air outlet 32, the third sub-air outlet 153 is opposite and communicated with the third sub-air outlet 33, and the fourth sub-air outlet 154 is opposite and communicated with the fourth sub-air outlet 34. The first sub-air outlet 151 is provided with a first air baffle 35 which can be rotated to open or close the first sub-air outlet 151, the second sub-air outlet 152 is provided with a second air baffle 36 which can be rotated to open or close the second sub-air outlet 152, and the rotation axes of the first air baffle 35 and the second air baffle 36 extend along the left-right direction.

[0087] The air duct frame 40 comprises an air duct frame body 41 and an air duct partition plate 42, the air duct partition plate 42 is arranged in the air duct frame body 41 and abuts against the wind wheel support 43 to divide the air duct 26 into a plurality of sub-air ducts 27 arranged along the up-down direction, the front side of the air duct partition plate 42 is provided with a avoiding gap 421, the rear end of the support plate 44 is accommodated in the avoiding gap 421, the number of the sub-air ducts 27 is the same as the number of the centrifugal fans 22 and corresponds one by one, the wind wheel 23 of each centrifugal fan 22 is located in the corresponding sub-air duct 27, the air inlet 28 is a plurality of air inlets 28 arranged along the up-down direction in sequence, and the number of the air inlets 28 is the same as the number of the sub-air ducts 27 and corresponds one by one.

[0088] The air duct frame 40 is an integral molding, the wind wheel support 43 is an integral molding, the heat exchanger assembly 20 is installed and fixed on the rear shell part 16, and the air duct part 25 is installed and fixed on the rear shell part 16. The heat exchanger assembly 20 comprises a heat exchanger part 201, and the cross section of the heat exchanger part 201 and the cross section of the air inlet 17 are both U-shaped or arc-shaped bending towards the rear.

[0089] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0090] In the description of the utility model, "first feature", "second feature" can include one or more features.

[0091] In the description of the utility model, "multiple" means two or more.

[0092] In the description of the utility model, "above" or "below" the first feature in the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0093] In the description of the utility model, "above", "above" and "above" of the first feature in the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.

[0094] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0095] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An air conditioner characterized by comprising: The application relates to a heat exchanger, comprising: a casing, comprising a front casing part and a rear casing part, the front casing part being connected to the front side of the rear casing part, the rear casing part being formed with an air inlet, and the front casing part being formed with an air outlet; a heat exchanger assembly arranged in the casing; a fan assembly arranged in the casing, the heat exchanger assembly being located between the air inlet and the fan assembly, the fan assembly comprising a duct part and a plurality of centrifugal fans, the plurality of centrifugal fans being mounted on the duct part and being arranged in a spaced-apart manner in the up-down direction, the rotating axis of each centrifugal fan extending in the front-rear direction, the duct part being formed with a duct, the centrifugal fan comprising a fan wheel and a motor, the motor being connected to the fan wheel to drive the fan wheel to rotate, the fan wheel being located in the duct, the rear side of the duct part being formed with an air flow inlet, the front side of the duct part being formed with an air flow outlet, the duct being in communication with the air flow inlet and the air flow outlet, the air flow inlet being in communication with the air inlet, and the air flow outlet being in communication with the air outlet.

2. The air conditioner of claim 1, wherein The duct part comprises a detachably connected duct frame and a fan wheel support, the fan wheel support being connected to the front side of the duct frame and jointly defining the duct with the duct frame, the air flow inlet being arranged on the duct frame, the air flow outlet being arranged on the fan wheel support, and the centrifugal fan being mounted on the fan wheel support.

3. The air conditioner of claim 2, wherein The fan wheel support comprises a support plate and an air flow outlet frame, the air flow outlet frame being arranged around the outer circumferential side of the support plate, the air flow outlet being defined in the air flow outlet frame, and the centrifugal fan being mounted on the support plate.

4. The air conditioner of claim 3, wherein The projection of the fan wheel on a reference plane is located in the projection of the support plate on the reference plane, and the reference plane is perpendicular to the rotating axis of the centrifugal fan. The projection of the air outlet on a reference plane is located on the outer circumferential side of the projection of the support plate on the reference plane, and the reference plane is perpendicular to the rotating axis of the centrifugal fan.

5. The air conditioner of claim 3, wherein The support plate is provided with mounting holes for mounting the centrifugal fan, the number of the mounting holes being the same as the number of the centrifugal fans and corresponding one by one, the fan wheel being adapted to be mounted into the duct through the corresponding mounting hole, the fan wheel support and the front casing part defining a containing space, and the motor being located in the containing space.

6. The air conditioner of claim 5, wherein The fan wheel support comprises a first mounting ring, the first mounting ring being arranged on the front side of the support plate and being arranged around the mounting hole, the outer circumferential wall of the first mounting ring being provided with a plurality of first fixing columns, the plurality of first fixing columns being arranged in a spaced-apart manner in the circumferential direction of the first mounting ring, the centrifugal fan further comprising a motor cover, the motor being contained in the motor cover, the motor cover being formed with a penetrating hole, the motor shaft of the motor penetrating through the penetrating hole and being connected with the fan wheel, the motor cover being formed with a first connecting flange, the first connecting flange being in abutment with the first mounting ring, and the first connecting flange and the first fixing column being connected through a first fastener.

7. The air conditioner of claim 3, wherein The front shell component comprises a front shell and an air outlet support arranged on the inner side of the front shell, the air outlet support abuts against the front side of the air outlet frame, and the air outlet support defines an air outlet channel inside, and the air outlet channel communicates the air flow outlet and the air outlet.

8. The air conditioner of claim 7, wherein The central axis of the air outlet channel extends in a rear-to-front direction and is inclined to a direction away from the center of the air duct component. The front shell and the air outlet support are integrally formed.

9. The air conditioner of claim 7, wherein The wind wheel support and the front shell component define an accommodation space, the motor is located in the accommodation space, and the air outlet support is located on the outer circumferential side of the accommodation space.

10. The air conditioner of claim 3, wherein The air flow outlet comprises a plurality of sub-air flow outlets arranged in a circumferential direction of the air flow outlet frame, the air outlet comprises a plurality of sub-air outlets arranged in a circumferential direction of the air flow outlet frame, and the plurality of sub-air outlets and the plurality of sub-air flow outlets are respectively opposite and communicated.

11. The air conditioner of claim 10, wherein The plurality of sub-air flow outlets comprises a first sub-air flow outlet, a second sub-air flow outlet, a third sub-air flow outlet and a fourth sub-air flow outlet, the plurality of sub-air outlets comprises a first sub-air outlet, a second sub-air outlet, a third sub-air outlet and a fourth sub-air outlet, the first sub-air flow outlet and the second sub-air flow outlet are respectively located at the upper and lower ends of the air flow outlet frame, the third sub-air flow outlet and the fourth sub-air flow outlet are respectively located at the left and right ends of the air flow outlet frame, the first sub-air outlet is opposite and communicated with the first sub-air flow outlet, the second sub-air outlet is opposite and communicated with the second sub-air flow outlet, the third sub-air outlet is opposite and communicated with the third sub-air flow outlet, and the fourth sub-air outlet is opposite and communicated with the fourth sub-air flow outlet. The first sub-air outlet is provided with a first air deflector, the first air deflector is rotatable to open or close the first sub-air outlet, the second sub-air outlet is provided with a second air deflector, the second air deflector is rotatable to open or close the second sub-air outlet, and the rotation axes of the first air deflector and the second air deflector both extend in a left-right direction.

12. The air conditioner of claim 3, wherein The air duct frame comprises an air duct frame body and an air duct partition plate, the air duct partition plate is arranged in the air duct frame body and abuts against the wind wheel support to divide the air duct into a plurality of sub-air ducts arranged in an up-down direction, the number of the sub-air ducts is the same as and one-to-one corresponds to the number of the centrifugal fans, the wind wheel of each centrifugal fan is located in the corresponding sub-air duct, and the air flow inlet is a plurality of air flow inlets arranged in sequence and spaced apart in the up-down direction, and the number of the air flow inlets is the same as and one-to-one corresponds to the number of the sub-air ducts.

13. The air conditioner of claim 12, wherein The front side of the air duct partition plate is provided with a avoiding gap, and the rear end of the support plate is accommodated in the avoiding gap.

14. The air conditioner of claim 3, wherein The air duct frame is an integrally formed member; and / or the wind wheel support is an integrally formed member.

15. The air conditioner of any one of claims 1-14, wherein, The heat exchanger assembly is mounted and fixed to the rear shell component, and the air duct component is mounted and fixed to the rear shell component. And / or, the heat exchanger assembly comprises a heat exchanger component, the cross section of the heat exchanger component and the cross section of the air inlet are both curved towards the back in a U shape or an arc shape.

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