Air conditioner

Abstract

The air conditioner comprises a machine shell, a heat exchanger assembly and an air duct assembly, an air inlet and an air outlet are formed in the machine shell, the heat exchanger assembly is arranged in the machine shell, the air duct assembly is arranged in the machine shell and comprises a draught fan and an air duct volute, the air duct volute comprises a volute body and a noise reduction assembly, and an air duct is defined in the volute body. The air duct is provided with an airflow outlet and an airflow inlet, the volute body is connected with the machine shell, the airflow outlet is opposite to and communicates with the air outlet, the airflow inlet communicates with the air inlet, the noise reduction assembly is arranged on the inner wall of the volute body and comprises a flow guide grid and a sound absorption layer, and the sound absorption layer is located between the flow guide grid and the inner wall of the volute body. According to the air conditioner provided by the embodiment of the utility model, airflow can be guided to flow towards the airflow outlet, turbulent flow and vortex of the airflow are reduced, and aerodynamic noise generated by instability of the airflow is reduced; the sound absorption layer can consume sound energy, and noise transmitted outwards by the air duct volute is reduced more sufficiently.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, and in particular to an air conditioner. Background Technology

[0002] The airflow within the duct casing of an air conditioner may experience turbulence and vortices, leading to airflow instability and potentially generating aerodynamic noise. Current technologies do not adequately reduce noise from the duct casing, which still transmits a significant amount of noise outwards; therefore, improvements are needed. Utility Model Content

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide an air conditioner in which the air duct casing includes a noise reduction component, and the noise reduction component includes a flow guide grille. The flow guide grille can guide the airflow towards the air outlet, reducing airflow turbulence and vortices, and lowering aerodynamic noise caused by unstable airflow. Furthermore, by including a sound-absorbing layer in the noise reduction component, the sound-absorbing layer can dissipate sound energy and absorb noise within the air duct casing, further reducing the noise transmitted outward from the air duct casing.

[0004] An air conditioner according to a first aspect of the present invention includes: a housing having an air inlet and an air outlet; a heat exchanger assembly disposed within the housing; and an air duct assembly disposed within the housing and including a fan and an air duct volute, the air duct volute including a volute body and a noise reduction component; an air outlet duct is defined within the volute body, the air duct having an air outlet and an air inlet, the volute body being connected to the housing, the air outlet being opposite to and communicating with the air outlet, and the air inlet being communicating with the air inlet; the noise reduction component is disposed on the inner wall of the volute body and includes a guide grille and a sound-absorbing layer, the sound-absorbing layer being located between the guide grille and the inner wall of the volute body.

[0005] According to the embodiment of the present invention, the air conditioner includes a noise reduction component in the air duct volute, and the noise reduction component includes a flow guide grille. The flow guide grille can guide the airflow to the air outlet, reducing airflow turbulence and vortex, and reducing aerodynamic noise caused by unstable airflow. The noise reduction component includes a sound-absorbing layer, which can dissipate sound energy and absorb noise inside the air duct volute, thus more effectively reducing the noise transmitted outward from the air duct volute.

[0006] According to some embodiments of the present invention, the flow guide grille is detachably connected to the volute body.

[0007] According to some embodiments of the present invention, the air duct includes a connected impeller cavity and an air outlet channel. The impeller cavity is used to accommodate an impeller and has an airflow inlet. The air outlet channel is located on the outer periphery of the impeller cavity and has the airflow outlet. The noise reduction component is installed on the inner wall of the air outlet channel.

[0008] According to some embodiments of the present invention, the projection of the portion of the air guide grille located within the air outlet channel onto the reference plane is a first projection, and the projection of the air outlet onto the reference plane is a second projection. The reference plane is the plane where the air outlet is located, and the first projection is located within the second projection.

[0009] According to some embodiments of the present invention, the air guide grille has mounting ribs, and the inner wall of the air outlet channel is provided with a mounting groove, wherein the mounting ribs are accommodated in the mounting groove.

[0010] According to some embodiments of the present invention, the mounting rib is disposed on at least one side of the air guide grille along the first direction, and the mounting rib extends along the second direction. The airflow outlet is located on one side of the volute body along the second direction. The mounting rib is adapted to slide into the mounting groove along the second direction, and the second direction intersects the first direction.

[0011] According to some embodiments of the present invention, the outer surface of the volute body includes a first surface, the first surface surrounds the outer periphery of the airflow outlet, the first surface includes a mating surface, and the guide grille is provided with a first flange on the side near the airflow outlet, the first flange abutting against the mating surface.

[0012] According to some embodiments of the present invention, a supporting step surface is formed on the first surface, the supporting step surface is located below the mating surface, and the first flange is supported on the supporting step surface.

[0013] According to some embodiments of the present invention, the air guide grille further includes a second flange, which is connected to the first flange and is used to connect with the housing of the air conditioner.

[0014] According to some embodiments of the present invention, the air guide grille includes a grille portion, the grille portion having sound-absorbing holes, at least a portion of the sound-absorbing layer being located between the grille portion and the inner wall of the air outlet channel, and at least a portion of the grille portion being disposed opposite to the airflow outlet.

[0015] According to some embodiments of the present invention, the flow guide grille includes a mounting portion, which is connected to opposite sides of the grille portion and is connected to the volute body.

[0016] According to some embodiments of the present invention, the air guide grille includes a grille portion, the grille portion having sound-absorbing holes, at least a portion of the sound-absorbing layer being located between the grille portion and the inner wall of the air outlet channel, and the spacing between the opposite sidewalls of the sound-absorbing holes being in the range of 2.5mm to 50mm.

[0017] According to some embodiments of this utility model, the volute body is a foam component.

[0018] According to some embodiments of this utility model, the wall thickness of the volute body ranges from 8mm to 50mm.

[0019] According to some embodiments of the present invention, the volute body includes a first volute portion and a second volute portion arranged in a vertical direction. The first volute portion and the second volute portion are both independently molded parts. The first volute portion defines the air outlet channel, and the second volute portion defines the impeller cavity.

[0020] According to some embodiments of the present invention, the duct volute further includes a motor cover, which is connected to the second volute portion and is a metal part, and a motor for driving the wind turbine to rotate is mounted on the motor cover.

[0021] According to some embodiments of the present invention, the volute body includes a first volute portion and a second volute portion arranged in a vertical direction. An avoidance groove is provided on the rear wall of the second volute portion. A water receiving tray is provided on the bottom surface of the heat exchanger assembly. The avoidance groove is used to avoid the water receiving tray.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of an air conditioner according to some embodiments of the present invention;

[0025] Figure 2 yes Figure 1 Front view of the air conditioner in the picture;

[0026] Figure 3 yes Figure 1 A cross-sectional view of an air conditioner in the image;

[0027] Figure 4 yes Figure 1 A schematic diagram of the air duct volute in the middle;

[0028] Figure 5 yes Figure 4 Enlarged view of point A in the image;

[0029] Figure 6 yes Figure 4 Front view of the air duct volute in the middle;

[0030] Figure 7 yes Figure 6 Cross-sectional view along the BB line;

[0031] Figure 8 yes Figure 4 Side view of the air duct volute in the middle;

[0032] Figure 9 yes Figure 8 Cross-sectional view along the CC line;

[0033] Figure 10 yes Figure 9 Enlarged view of point D in the image.

[0034] Figure label:

[0035] 100. Air conditioner; 101. Air duct casing;

[0036] 10. Volute body; 11. Air duct; 12. Air outlet; 13. Air inlet; 14. Impeller cavity; 15. Air outlet channel; 16. Mounting groove; 17. First surface; 18. Mating surface; 19. Supporting step surface; 20. First volute part; 21. Second volute part; 22. Clearance groove;

[0037] 30. Noise reduction component; 31. Airflow guide grille; 32. Mounting rib; 33. First flange; 34. Grille section; 35. Sound absorption hole; 36. Mounting section; 37. Sound absorption layer;

[0038] 40. Motor cover;

[0039] 50. Casing; 51. Air outlet; 52. Air inlet; 53. Heat exchanger assembly; 54. Fan assembly; 55. Fan; 56. Water collection tray. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] The following is for reference. Figures 1-10 This invention describes an air conditioner 100 according to an embodiment of the present invention.

[0042] An air conditioner 100 according to a first aspect of the present invention includes: a housing 50, a heat exchanger assembly 53, and an air duct assembly.

[0043] The housing 50 has an air inlet 52 and an air outlet 51, and the heat exchanger assembly 53 is disposed inside the housing 50. The air duct assembly is disposed inside the housing 50 and includes a fan 55 and an air duct volute 101. The air duct volute 101 includes a volute body 10 and a noise reduction assembly 30.

[0044] The volute body 10 defines an air outlet 11, which has an air outlet 12 and an air inlet 13. The volute body 10 is connected to the housing 50. The air outlet 12 is opposite to and connected to the air outlet 51, and the air inlet 13 is connected to the air inlet 52. The noise reduction component 30 is disposed on the inner wall of the volute body 10 and includes a guide grille 31 and a sound-absorbing layer 37. The sound-absorbing layer 37 is located between the guide grille 31 and the inner wall of the volute body 10.

[0045] For example, the air conditioner 100 is a split-type floor-standing air conditioner 100, which includes an indoor unit and an outdoor unit. The air inlet 52 of the indoor unit is located at the rear of the indoor unit, and the air outlet 51 is located at the front of the indoor unit.

[0046] When the air conditioner 100 is working, the airflow enters the interior of the air conditioner 100 through the air inlet 52, exchanges heat with the heat exchanger assembly 53, and then enters the air duct volute 101 through the air inlet 13 under the drive of the fan 55. It leaves the air duct volute 101 through the air outlet 12 and finally leaves the air conditioner 100 from the air outlet 12, thus regulating the temperature.

[0047] For example, the air conditioner 100 is a split-type floor-standing air conditioner 100, and the fan 55 of the air conditioner 100 is a centrifugal fan 55. When the air conditioner 100 is working, the airflow enters the interior of the air conditioner 100 through the air inlet 52, exchanges heat with the heat exchanger assembly 53, and then, driven by the centrifugal fan 55, enters the air duct volute 101 through the airflow inlet 13 along the axial direction of the centrifugal fan 55. After being thrown out by the centrifugal fan 55 in the radial direction, it leaves the air duct volute 101 through the airflow outlet 12, and finally leaves the air conditioner 100 from the airflow outlet 12, thus regulating the temperature.

[0048] The noise reduction component 30 is disposed on the inner wall of the volute body 10 and includes a flow guide grille 31 and a sound-absorbing layer 37. By including the noise reduction component 30 in the duct volute 101 and including the flow guide grille 31 in the noise reduction component 30, the flow guide grille 31 can guide the airflow to the position of the airflow outlet 12, reduce the turbulence and vortex of the airflow, and reduce the aerodynamic noise caused by the unstable airflow; by including the sound-absorbing layer 37 in the noise reduction component 30, the sound-absorbing layer 37 can dissipate sound energy and absorb the noise in the duct volute 101, and more effectively reduce the noise transmitted outward from the duct volute 101.

[0049] For example, the sound-absorbing layer 37 is made of sponge. The sponge can convert sound energy into heat energy and consume it, thereby achieving sound absorption and noise reduction, and more effectively reducing the noise transmitted outward from the duct volute 101.

[0050] The sound-absorbing layer 37 is located between the flow guide grille 31 and the inner wall of the volute body 10. By positioning the sound-absorbing layer 37 between the flow guide grille 31 and the inner wall of the volute body 10, the flow guide grille 31 and the inner wall of the volute body 10 can limit the sound-absorbing layer 37, preventing it from falling off and causing the sound-absorbing effect of the sound-absorbing layer 37 to fail.

[0051] For example, the sound-absorbing layer 37 is made of sponge, and the sound-absorbing layer 37 is connected to the inner wall of the volute body 10 by adhesive bonding to prevent the sponge from shifting or deforming during use.

[0052] According to the embodiment of the present invention, the air conditioner 100 includes a noise reduction component 30 in the air duct volute 101, and the noise reduction component 30 includes a flow guide grille 31. The flow guide grille 31 can guide the airflow to the position of the air outlet 12, reduce the turbulence and vortex of the airflow, and reduce the aerodynamic noise caused by the unstable airflow. The noise reduction component 30 includes a sound absorption layer 37, which can dissipate sound energy and absorb the noise in the air duct volute 101, thereby more fully reducing the noise transmitted outward from the air duct volute 101.

[0053] According to some embodiments of this utility model, the flow guide grille 31 is detachably connected to the volute body 10. By making the flow guide grille 31 detachably connected to the volute body 10, it is convenient for relevant personnel to clean or maintain the flow guide grille 31; and it is also convenient to install the sound-absorbing layer 37 between the flow guide grille 31 and the inner wall of the volute body 10.

[0054] When installing the sound-absorbing layer 37, first remove the flow guide grille 31 from the volute body 10, then install the sound-absorbing layer 37 on the volute body 10, and finally connect and fix the flow guide grille 31 to the volute body 10.

[0055] According to some embodiments of this utility model, refer to Figures 6-9The air duct 11 includes a connected impeller cavity 14 and an air outlet channel 15. The impeller cavity 14 accommodates the impeller and has an airflow inlet 13. The air outlet channel 15 is located on the outer periphery of the impeller cavity 14 and has an airflow outlet 12. The noise reduction component 30 is installed on the inner wall of the air outlet channel 15. By including the connected impeller cavity 14 and the air outlet channel 15 in the air duct 11, airflow can enter the air duct 11 from the airflow inlet 13 under the drive of the impeller, and then leave the air duct 11 from the airflow outlet 12. Since the air outlet channel 15 is closer to the airflow outlet 12 than the impeller cavity 14, the noise generated by the air outlet channel 15 is greater than that generated by the impeller cavity 14. By installing the noise reduction component 30 on the inner wall of the air outlet channel 15, the noise reduction component 30 can guide and absorb the airflow in the air outlet channel 15, more effectively reducing or absorbing the noise generated in the air outlet channel 15, and reducing the noise transmitted outward from the air duct casing 101.

[0056] For example, the impeller can be a centrifugal impeller. The airflow enters the impeller cavity 14 from the airflow inlet 13 along the axial direction of the centrifugal impeller, and is then thrown out by the centrifugal impeller along the radial direction of the centrifugal impeller. It flows from the impeller cavity 14 into the air outlet channel 15, and finally leaves the air outlet channel 15 from the airflow outlet 12.

[0057] According to some embodiments of this utility model, refer to Figure 4 The portion of the airflow guide grille 31 located within the air outlet duct 15 is projected onto a reference plane as a first projection, and the airflow outlet 12 is projected onto the reference plane as a second projection. The reference plane is the plane where the airflow outlet 12 is located, and the first projection is located within the second projection. By placing the first projection within the second projection, the airflow guide grille 31 can be installed from the airflow outlet 12 into or removed from the air outlet duct 15. This makes it easier for relevant personnel to disassemble or install the airflow guide grille 31 when cleaning or maintenance is required.

[0058] According to some embodiments of this utility model, refer to Figure 9 and Figure 10 The airflow guide grille 31 has mounting ribs 32, and the inner wall of the air outlet duct 15 is provided with a mounting groove 16, in which the mounting ribs 32 are accommodated. By having the airflow guide grille 31 have mounting ribs 32 and the inner wall of the air outlet duct 15 be provided with a mounting groove 16, and by having the mounting ribs 32 accommodated in the mounting groove 16, the mounting groove 16 can limit the mounting ribs 32, preventing the airflow guide grille 31 from falling off and causing the airflow guide grille 31 to lose its airflow guiding effect; furthermore, the airflow guide ribs can slide in and out of the mounting groove 16 for installation or removal, making it easier for relevant personnel to disassemble or install the airflow guide grille 31.

[0059] According to some embodiments of this utility model, refer to Figure 9 and Figure 10The mounting rib 32 is disposed on at least one side of the airflow guide grille 31 along a first direction (e.g., direction e1 in the figure), and the mounting rib 32 extends along a second direction (e.g., direction e2 in the figure). The airflow outlet 12 is located on one side of the volute body 10 along the second direction. The mounting rib 32 is adapted to slide into the mounting groove 16 along the second direction, which intersects with the first direction. By extending the mounting rib 32 along the second direction and positioning the airflow outlet 12 on one side of the volute body 10 along the second direction, the mounting rib 32 can slide into the mounting groove 16 along the second direction, making it easier for personnel to disassemble or install the airflow guide grille 31. When relevant personnel need to install the flow guide grille 31, they can slide the mounting rib 32 into the mounting groove 16 along the second direction from the airflow outlet 12, so that the flow guide grille 31 is installed on the volute body 10; when relevant personnel need to disassemble the flow guide grille 31, they can slide the mounting rib 32 out of the mounting groove 16 along the second direction from the airflow outlet 12, so that the flow guide grille 31 is disconnected from the volute body 10.

[0060] For example, the first direction can be left or right, and the second direction can be front or back.

[0061] According to some embodiments of this utility model, refer to Figure 4 and Figure 5 The outer surface of the volute body 10 includes a first surface 17, which surrounds the outer periphery of the airflow outlet 12. The first surface 17 includes a mating surface 18. The guide grille 31 has a first flange 33 on the side near the airflow outlet 12, and the first flange 33 abuts against the mating surface 18. By providing the first flange 33 on the side of the guide grille 31 near the airflow outlet 12, and having the first flange 33 abut against the mating surface 18, the first surface 17 and the first flange 33 can guide relevant personnel to install the guide grille 31 in place. When relevant personnel need to install the guide grille 31, they can slide the mounting rib 32 from the airflow outlet 12 into the mounting groove 16 in the second direction, and continue to push the guide grille 31 in the second direction until the first flange 33 abuts against the mating surface 18, at which point the guide grille 31 is installed in place.

[0062] According to some embodiments of this utility model, refer to Figure 4 and Figure 5A supporting step surface 19 is formed on the first surface 17, located below the mating surface 18. The first flange 33 is supported on the supporting step surface 19. By forming the supporting step surface 19 on the first surface 17 and having the first flange 33 supported on the supporting step surface 19, the supporting step surface 19 can support the first flange 33 upwards, providing upward support to prevent the guide grille 31 from falling off and causing the guide effect to fail; and it can also guide the installation of the guide grille 31. When relevant personnel need to install the guide grille 31, the lower edge of the guide grille 31 can be made to abut against the supporting step surface 19, and the supporting step surface 19 can support the guide grille 31 upwards. The mounting rib 32 is slid into the mounting groove 16 in the second direction from the airflow outlet 12, and the guide grille 31 is pushed in the second direction until the first flange 33 abuts against the mating surface 18, and the guide grille 31 is installed in place. At this time, the supporting step surface 19 supports the first flange 33 upwards.

[0063] According to some embodiments of this utility model, the airflow guide grille 31 further includes a second flange connected to the first flange 33, and the second flange is used to connect with the housing 50 of the air conditioner 100. By including a second flange in the airflow guide grille 31 for connection with the housing 50 of the air conditioner 100, the connection between the airflow guide grille 31 and the housing 50 of the air conditioner 100 can be made more stable, and the airflow guide effect failure caused by the airflow guide grille 31 falling off can be more effectively avoided. For example, the second flange is provided with a mounting hole, and the housing 50 is provided with a connection hole. Fasteners are sequentially inserted through the mounting hole and the connection hole to connect the second flange to the housing 50.

[0064] According to some embodiments of this utility model, refer to Figures 6-9 The airflow guide grille 31 includes a grille portion 34 with sound-absorbing holes 35. At least a portion of the sound-absorbing layer 37 is located between the grille portion 34 and the inner wall of the air outlet duct 15, and at least a portion of the grille portion 34 is positioned opposite to the airflow outlet 12. By forming sound-absorbing holes 35 in the grille portion 34, the sound-absorbing layer 37 can come into contact with noise inside the air duct 11 through the sound-absorbing holes 35, allowing the sound-absorbing layer 37 to absorb noise more effectively. Since the air outlet duct 15 generates more noise than the impeller cavity 14, by positioning at least a portion of the sound-absorbing layer 37 between the grille portion 34 and the inner wall of the air outlet duct 15, and with at least a portion of the grille portion 34 positioned opposite to the airflow outlet 12, the sound-absorbing layer 37 can absorb noise at the airflow outlet 12 more effectively, further reducing noise transmitted outward from the air duct casing 101 and improving the user experience. By positioning at least a portion of the sound-absorbing layer 37 between the grille portion 34 and the inner wall of the air outlet duct 15, the grille portion 34 can limit the sound-absorbing layer 37 and prevent it from falling off.

[0065] According to some embodiments of this utility model, refer to Figures 6-9The airflow guide grille 31 includes a mounting portion 36, which is connected to opposite sides of the grille portion 34 and is connected to the volute body 10. By including the mounting portion 36 in the airflow guide grille 31 and connecting the mounting portion 36 to the volute body 10, the connection between the airflow guide grille 31 and the volute body 10 can be made more sufficient, preventing the airflow guide grille 31 from falling off the volute body 10 and causing the airflow guiding effect to fail; it can also prevent the sound-absorbing layer 37 from falling off due to the limiting effect of the airflow guide grille 31.

[0066] For example, the air guide grille 31 has mounting ribs 32, and the inner wall of the air outlet duct 15 is provided with mounting grooves 16, in which the mounting ribs 32 are accommodated. The mounting ribs 32 are provided on at least one side of the mounting portion 36 and extend along a second direction. The air outlet 12 is located on one side of the volute body 10 along the second direction. The mounting ribs 32 are adapted to slide into the mounting grooves 16 along the second direction, which intersects with the first direction.

[0067] According to some embodiments of this utility model, refer to Figure 6 The airflow guide grille 31 includes a grille portion 34, which has sound-absorbing holes 35. At least a portion of the sound-absorbing layer 37 is located between the grille portion 34 and the inner wall of the air outlet duct 15. The distance between the opposite sidewalls of the sound-absorbing holes 35 is 'a', and the value of 'a' ranges from 2.5mm to 50mm. For example, the value of 'a' can be 2.5mm, 5mm, 10mm, 15mm, 20mm, 30mm, 40mm, 50mm, etc. By ensuring that the distance 'a' between the opposite sidewalls of the sound-absorbing holes 35 is not less than 2.5mm, the sound-absorbing layer 37 can more fully contact the noise inside the air duct 11 through the sound-absorbing holes 35, thus absorbing noise more effectively. By ensuring that the distance 'a' between the opposite sidewalls of the sound-absorbing holes 35 is not greater than 50mm, the sound-absorbing layer 37 can be prevented from falling out of the sound-absorbing holes 35, thus preventing the sound absorption effect from failing, and the airflow guide grille 31 can more effectively limit the sound-absorbing layer 37.

[0068] According to some embodiments of this utility model, the volute body 10 is a foam component. By making the volute body 10 a foam component, the foam can serve as a sound insulation material, reducing noise radiation to the outside, further reducing the noise generated inside the air duct 11, further reducing the noise transmitted outward from the air duct volute 101, and improving the user experience.

[0069] According to some embodiments of this utility model, refer to Figure 7The wall thickness of the volute body 10 is b, and the value of b ranges from 8mm to 50mm. For example, the value of b can be 8mm, 15mm, 20mm, 30mm, 40mm, 50mm, etc. By ensuring that the wall thickness b of the volute body 10 is not less than 8mm, the volute body 10 has sufficient structural strength, preventing bending damage. By ensuring that the wall thickness b of the volute body 10 is not greater than 50mm, sufficient structural strength of the volute body 10 can be guaranteed while saving materials and avoiding waste.

[0070] For example, refer to Figure 7 The wall thickness of the sound-absorbing layer 37 is c, and the value of c ranges from 4mm to 25mm.

[0071] According to some embodiments of this utility model, refer to Figures 4-9 The volute body 10 includes a first volute portion 20 and a second volute portion 21 arranged in a vertical direction. Both the first volute portion 20 and the second volute portion 21 are independently molded parts. The first volute portion 20 defines an air outlet channel 15, and the second volute portion 21 defines an exhaust impeller cavity 14. By including the first volute portion 20 and the second volute portion 21 arranged in a vertical direction, and by making both the first volute portion 20 and the second volute portion 21 independently molded parts, the volute body 10 can be more easily processed and installed, preventing damage to the volute body 10 during installation.

[0072] According to some embodiments of this utility model, refer to Figure 4 The duct volute 101 also includes a motor cover 40, which is connected to the second volute portion 21 and is made of metal. The motor used to drive the impeller rotation is mounted on the motor cover 40. The motor cover 40 is made of metal, while the volute body 10 is made of foam. The motor cover 40 is stronger than the volute body 10. By connecting the motor cover 40 to the second volute portion 21 and making it a metal part, and by mounting the motor used to drive the impeller rotation on the motor cover 40, the motor can be connected to the structurally stronger motor cover 40, avoiding direct connection between the motor and the volute body 10, which could damage the volute body 10.

[0073] According to some embodiments of this utility model, refer to Figure 3 The volute body 10 includes a first volute portion 20 and a second volute portion 21 arranged in a vertical direction. A clearance groove 22 is provided on the rear wall of the second volute portion 21. A water receiving tray 56 is provided on the bottom surface of the heat exchanger assembly 53, and the clearance groove 22 is used to avoid the water receiving tray 56. By providing the clearance groove 22 on the outer wall of the volute body 10 and using the clearance groove 22 to avoid the water receiving tray 56 of the air conditioner 100, interference between the volute body 10 and the water receiving tray 56 can be avoided, making the volute body 10 easier to assemble.

[0074] The following reference Figures 1-10 This invention describes an air conditioner 100 according to some specific embodiments of the present invention.

[0075] In this embodiment, the air conditioner 100 includes a housing 50, a heat exchanger assembly 53, and an air duct assembly. The housing 50 has an air inlet 52 and an air outlet 51, and the heat exchanger assembly 53 is disposed inside the housing 50. The air duct assembly is disposed inside the housing 50 and includes a fan 55 and an air duct volute 101. The air duct volute 101 includes a volute body 10 and a noise reduction component 30.

[0076] The volute body 10 defines an air outlet 11, which has an air outlet 12 and an air inlet 13. The volute body 10 is connected to the housing 50. The air outlet 12 is opposite to and connected to the air outlet 51, and the air inlet 13 is connected to the air inlet 52. The noise reduction component 30 is disposed on the inner wall of the volute body 10 and includes a guide grille 31 and a sound-absorbing layer 37. The sound-absorbing layer 37 is located between the guide grille 31 and the inner wall of the volute body 10.

[0077] The noise reduction component 30 is disposed on the inner wall of the volute body 10 and includes a flow guide grille 31 and a sound absorption layer 37. The sound absorption layer 37 is located between the flow guide grille 31 and the inner wall of the volute body 10. The flow guide grille 31 and the volute body 10 are detachably connected.

[0078] The air duct 11 includes a connected impeller cavity 14 and an air outlet duct 15. The impeller cavity 14 is used to accommodate the impeller and has an airflow inlet 13. The air outlet duct 15 is located on the outer periphery of the impeller cavity 14 and has an airflow outlet 12. The noise reduction component 30 is installed on the inner wall of the air outlet duct 15. The airflow guide grille 31 is adapted to be installed from the airflow outlet 12 into the air outlet duct 15 or removed from the air outlet duct 15.

[0079] The airflow guide grille 31 has mounting ribs 32, and the inner wall of the air outlet duct 15 is provided with mounting grooves 16, in which the mounting ribs 32 are accommodated. The mounting ribs 32 are located on at least one side of the airflow guide grille 31 along a first direction and extend along a second direction. The airflow outlet 12 is located on one side of the volute body 10 along the second direction. The mounting ribs 32 are adapted to slide into the mounting grooves 16 along the second direction, which intersects with the first direction. The outer surface of the volute body 10 includes a first surface 17 surrounding the outer periphery of the airflow outlet 12. The first surface 17 includes a mating surface 18. The airflow guide grille 31 has a first flange 33 on the side near the airflow outlet 12, which abuts against the mating surface 18. A supporting stepped surface 19 is formed on the first surface 17, located below the mating surface 18, and the first flange 33 is supported on the supporting stepped surface 19. The air deflector grille 31 also includes a second flange connected to the first flange 33, and the second flange is used to connect to the housing 50 of the air conditioner 100.

[0080] The airflow guide grille 31 includes a grille portion 34, which has sound-absorbing holes 35. At least a portion of the sound-absorbing layer 37 is located between the grille portion 34 and the inner wall of the air outlet duct 15. The distance between the opposite sidewalls of the sound-absorbing holes 35 is 'a', and the value of 'a' ranges from 2.5 mm to 50 mm. At least a portion of the grille portion 34 is disposed opposite to the airflow outlet 12. The airflow guide grille 31 includes a mounting portion 36, which is connected to opposite sides of the grille portion 34 and is connected to the volute body 10.

[0081] The volute body 10 is a foam component, and its wall thickness ranges from 8mm to 50mm, defined as b. The volute body 10 includes a first volute portion 20 and a second volute portion 21 arranged vertically. Both the first volute portion 20 and the second volute portion 21 are independently molded parts. The first volute portion 20 defines an air outlet channel 15, and the second volute portion 21 defines an air outlet impeller cavity 14. An avoidance groove 22 is provided on the outer wall of the volute body 10 to avoid the water collection tray 56 of the air conditioner 100.

[0082] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0083] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0084] In the description of this utility model, "multiple" means two or more.

[0085] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0086] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that, include: The casing has an air inlet and an air outlet. The heat exchanger assembly is located inside the housing; The air duct assembly is disposed inside the housing and includes a fan and an air duct volute, wherein the air duct volute includes a volute body and a noise reduction component; The volute body defines an air outlet duct, which has an air outlet and an air inlet. The volute body is connected to the housing. The air outlet is opposite to and communicates with the air outlet. The air inlet is communicated with the air inlet. The noise reduction component is disposed on the inner wall of the volute body and includes a flow guide grille and a sound-absorbing layer, wherein the sound-absorbing layer is located between the flow guide grille and the inner wall of the volute body.

2. The air conditioner according to claim 1, characterized in that, The flow guide grille is detachably connected to the volute body.

3. The air conditioner according to claim 1, characterized in that, The air duct includes a connected impeller cavity and an air outlet channel. The impeller cavity is used to accommodate the impeller and has an airflow inlet. The air outlet channel is located on the outer periphery of the impeller cavity and has the airflow outlet. The noise reduction component is installed on the inner wall of the air outlet channel.

4. The air conditioner according to claim 3, characterized in that, The projection of the portion of the airflow guide grille located within the air outlet channel onto the reference plane is the first projection, and the projection of the airflow outlet onto the reference plane is the second projection. The reference plane is the plane where the airflow outlet is located, and the first projection is located within the second projection.

5. The air conditioner according to claim 3, characterized in that, The air guide grille has mounting ribs, and the inner wall of the air outlet channel is provided with mounting grooves, in which the mounting ribs are accommodated.

6. The air conditioner according to claim 5, characterized in that, The mounting rib is disposed on at least one side of the air guide grille along the first direction, and the mounting rib extends along the second direction. The air outlet is located on one side of the volute body along the second direction. The mounting rib is adapted to slide into the mounting groove along the second direction, and the second direction intersects the first direction.

7. The air conditioner according to claim 3, characterized in that, The outer surface of the volute body includes a first surface, which surrounds the outer periphery of the airflow outlet. The first surface includes a mating surface. The airflow guide grille has a first flange on the side near the airflow outlet, and the first flange abuts against the mating surface.

8. The air conditioner according to claim 7, characterized in that, A supporting step surface is formed on the first surface, the supporting step surface is located below the mating surface, and the first flange is supported on the supporting step surface.

9. The air conditioner according to claim 7, characterized in that, The airflow guide grille also includes a second flange, which is connected to the first flange and is used to connect to the housing of the air conditioner.

10. The air conditioner according to claim 3, characterized in that, The airflow guide grille includes a grille section with sound-absorbing holes. At least a portion of the sound-absorbing layer is located between the grille section and the inner wall of the air outlet channel. At least a portion of the grille section is disposed opposite to the airflow outlet.

11. The air conditioner according to claim 10, characterized in that, The flow guide grille includes a mounting portion connected to opposite sides of the grille portion and connected to the volute body.

12. The air conditioner according to claim 3, characterized in that, The airflow guide grille includes a grille section with sound-absorbing holes. At least a portion of the sound-absorbing layer is located between the grille section and the inner wall of the air outlet channel. The distance between the opposite sidewalls of the sound-absorbing holes ranges from 2.5 mm to 50 mm.

13. The air conditioner according to claim 3, characterized in that, The volute body is made of foam.

14. The air conditioner according to claim 13, characterized in that, The wall thickness of the volute body ranges from 8mm to 50mm.

15. The air conditioner according to claim 13, characterized in that, The volute body includes a first volute portion and a second volute portion arranged in a vertical direction. The first volute portion and the second volute portion are both independently molded parts. The first volute portion defines the air outlet channel, and the second volute portion defines the impeller cavity.

16. The air conditioner according to claim 15, characterized in that, The duct volute also includes a motor cover, which is connected to the second volute and is made of metal. The motor used to drive the wind turbine to rotate is mounted on the motor cover.

17. The air conditioner according to claim 1, characterized in that, The volute body includes a first volute portion and a second volute portion arranged in a vertical direction. A clearance groove is provided on the rear wall of the second volute portion. A water receiving tray is provided on the bottom surface of the heat exchanger assembly. The clearance groove is used to avoid the water receiving tray.

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