Air conditioner

Abstract

The air conditioner comprises a machine shell, a heat exchanger component and an air duct assembly, the machine shell is provided with an air inlet, a first air outlet and a second air outlet, and the second air outlet is located below the first air outlet; the air duct assembly comprises a centrifugal air duct part, the centrifugal air duct part comprises a centrifugal volute, the centrifugal volute is provided with a centrifugal air duct, and the air duct assembly is provided with a first centrifugal air outlet channel and a second centrifugal air outlet channel; an airflow inlet of the centrifugal volute communicates with the air inlet and the centrifugal air duct, a first airflow outlet communicates with the centrifugal air duct and the first centrifugal air outlet channel, the first centrifugal air outlet channel communicates with the first air outlet, a second airflow outlet communicates with the centrifugal air duct and the second centrifugal air outlet channel, and the second centrifugal air outlet channel communicates with the second air outlet. According to the air conditioner, the air outlet amount can be increased, the diffusion area of airflow can be increased, the uniformity of the temperatures of different indoor areas can be improved, and therefore the overall comfort of the indoor space can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, in particular to an air conditioner. Background Art

[0002] In the related art, the air supply distance of the air conditioner is short, and the air flow blown into the room from the air outlet covers a small area, which makes the indoor temperature adjustment speed slow, easily leads to uneven indoor temperature and poor overall indoor comfort. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide an air conditioner, wherein the second air outlet is located below the first air outlet, and the airflow in the centrifugal air duct can be discharged through the first air outlet and the second air outlet, which is conducive to increasing the air volume and the diffusion area of ​​the airflow; and the wind pressure in the centrifugal air duct is relatively large, which helps to increase the air supply speed and increase the diffusion distance of the airflow to increase the coverage area of ​​the airflow, so that the temperature of the indoor area far from the casing can be adjusted, and when the air conditioner is in cooling and heating mode, the temperature of different height areas can be adjusted, the speed of indoor temperature adjustment can be increased, and the uniformity of the temperature of different indoor areas can be improved, thereby improving the overall comfort of the indoor space.

[0004] 14. The air conditioner of claim 13, wherein the heat exchanger is arranged in the casing and comprises a centrifugal air duct component, the centrifugal air duct component comprises a centrifugal volute and a centrifugal fan wheel, the centrifugal volute has a centrifugal air duct connected with the air inlet, the centrifugal fan wheel is arranged in the centrifugal air duct, and the air duct component also has a first centrifugal air outlet channel and a second centrifugal air outlet channel; wherein the centrifugal volute has an air flow inlet, a first air flow outlet and a second air flow outlet, the air flow inlet connects the air inlet with the centrifugal air duct, the first air flow outlet is suitable for connecting the centrifugal air duct with the first centrifugal air outlet channel, the first centrifugal air outlet channel is connected with the first air outlet, the second air flow outlet is suitable for connecting the centrifugal air duct with the second centrifugal air outlet channel, and the second centrifugal air outlet channel is connected with the second air outlet.

[0005] According to the air conditioner of the embodiment of the present invention, the second air outlet is located below the first air outlet, and the air flow in the centrifugal air duct can be discharged through the first air outlet and the second air outlet, which is beneficial to increase the air output and the diffusion area of ​​the air flow; and the wind pressure in the centrifugal air duct is relatively large, which helps to increase the air supply speed and increase the diffusion distance of the air flow to increase the coverage area of ​​the air flow, so as to adjust the temperature of the indoor area far away from the casing, and when the air conditioner is in cooling and heating mode, it can adjust the temperature of areas at different heights, increase the speed of indoor temperature adjustment, and improve the uniformity of temperature in different areas of the room, thereby improving the overall comfort of the indoor space.

[0006] According to some embodiments of the present invention, the air duct assembly includes an air outlet piece, the air outlet piece defines the second centrifugal air outlet channel, the air outlet piece has an inlet end and an outlet end, the inlet end is connected to the centrifugal volute and opposite to the second air flow outlet, and the outlet end is opposite to the second air outlet.

[0007] According to some optional embodiments of the present invention, a sealing flange is formed at the inlet end, a docking surface is formed at the outer peripheral edge of the second airflow outlet, and the sealing flange is connected to the docking surface.

[0008] According to some optional embodiments of the present invention, the inlet end is detachably connected to the centrifugal volute.

[0009] In some optional embodiments of the present invention, the inlet end is provided with a first mounting hole and a positioning hole, the centrifugal volute is provided with a second mounting hole and a positioning boss, the first fastener is suitable for passing through the first mounting hole and the second mounting hole, and the positioning boss is inserted into the positioning hole.

[0010] In some optional embodiments of the present invention, a sealing flange is formed at the inlet end, and a docking surface is formed on the outer surface of the centrifugal volute, and the docking surface surrounds the outer peripheral side of the second air flow outlet; wherein, the first mounting hole and the positioning hole are both formed on the sealing flange, and the second mounting hole and the positioning boss are both arranged on the docking surface.

[0011] According to some optional embodiments of the present invention, the motor for driving the centrifugal wind wheel to rotate is a first motor, and the first motor is located below the air outlet member.

[0012] According to some embodiments of the present invention, the second air flow outlet faces forward, the second air outlet is formed on the front side wall of the housing, and in the direction from back to front, the second centrifugal air outlet channel extends obliquely downward.

[0013] According to some embodiments of the present invention, the rotation axis of the centrifugal wind wheel extends in the front-to-back direction, the centrifugal air duct includes a wind wheel cavity and a centrifugal air outlet cavity, the air flow inlet is formed on the rear side wall of the wind wheel cavity, the centrifugal wind wheel is located in the wind wheel cavity, the centrifugal air outlet cavity is located above the wind wheel cavity, the first air flow outlet is formed on the top wall of the centrifugal air outlet cavity, and the second air flow outlet is formed on the front side wall of the centrifugal air outlet cavity.

[0014] According to some embodiments of the present invention, the centrifugal air duct and the first centrifugal air outlet channel can be selectively connected or isolated; and / or, the centrifugal air duct and the second centrifugal air outlet channel can be selectively connected or isolated.

[0015] According to some optional embodiments of the present invention, the centrifugal air duct component further includes an air duct switching door, which is movably provided on the centrifugal volute and is used to open or close the first air flow outlet and the second air flow outlet.

[0016] In some optional embodiments of the present invention, the motor used to drive the air duct switching door to move is a damper motor, and the damper motor is installed on the centrifugal volute and is located outside the centrifugal air duct.

[0017] In some optional embodiments of the present invention, the damper motor has a mounting lug, and the mounting lug is connected to the centrifugal volute via a second fastener.

[0018] In some optional embodiments of the present invention, the air duct switching door is rotatably connected to the centrifugal volute.

[0019] In some optional embodiments of the present invention, the air duct switching door has a first position and a second position; in the first position, the air duct switching door closes the first air flow outlet and opens the second air flow outlet; in the second position, the air duct switching door closes the second air flow outlet and opens the first air flow outlet.

[0020] In some optional embodiments of the present invention, the air duct switching door has a third position, and the third position is located between the first position and the third position. In the third position, the air duct switching door opens the second air flow outlet and opens the first air flow outlet.

[0021] According to some optional embodiments of the present invention, the motor used to drive the movement of the air duct switching door is a damper motor, which is installed on the centrifugal volute and located outside the centrifugal air duct; the air duct switching door includes a door body and a door shaft connected to the opposite ends of the door body, and door shaft holes are respectively formed at the opposite ends of the centrifugal volute, and the door shaft can be rotatably engaged with the door shaft holes, and the motor shaft of the damper motor is connected to one of the door shafts.

[0022] According to some optional embodiments of the present invention, the first air flow outlet is formed at the upper end of the centrifugal volute and faces upward, the second air flow outlet is formed on the front side wall of the centrifugal volute, one end of the air duct switching door is rotatably connected between the first air flow outlet and the second air flow outlet, and the inner wall of the centrifugal volute is provided with a limiting protrusion for limiting the other end of the air duct switching door, and when the air duct switching door closes the first air flow outlet, the other end of the air duct switching door is located at the lower side of the limiting protrusion.

[0023] According to some embodiments of the present invention, the air conditioner has a cooling mode and a heating mode; in the cooling mode, the centrifugal air duct is connected to the first centrifugal air outlet channel and is separated from the second centrifugal air outlet channel; in the heating mode, the centrifugal air duct is separated from the first centrifugal air outlet channel and is connected to the second centrifugal air outlet channel.

[0024] According to some embodiments of the present invention, the air duct assembly also includes a cross-flow air duct component, the centrifugal air duct component is located below the cross-flow air duct component, the cross-flow air duct component includes a cross-flow volute and a cross-flow wind wheel, the cross-flow volute has a cross-flow air duct connected to the air inlet, the cross-flow wind wheel is arranged in the cross-flow air duct, and the cross-flow air outlet channel is suitable for connecting the cross-flow air duct with the first air outlet.

[0025] According to some optional embodiments of the present invention, a wire passing hole is formed on the centrifugal volute, and the motor for driving the crossflow impeller to rotate is a second motor, and a motor wire of the second motor is suitable for routing through the wire passing hole.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of an air-conditioning indoor unit according to some embodiments of the present invention;

[0029] Figure 2 yes Figure 1 Exploded view of the indoor unit of the air conditioner;

[0030] Figure 3 yes Figure 1 A partial structural diagram of the indoor unit of the air conditioner is shown, showing the structure inside the casing;

[0031] Figure 4 is along Figure 3 Sectional view along line AA;

[0032] Figure 5 yes Figure 4 The enlarged view of the M in the middle;

[0033] Figure 6 yes Figure 2 Schematic diagram of the coordination between the air duct assembly and the heat exchanger components;

[0034] Figure 7 yes Figure 6 Exploded view of the air duct assembly and heat exchanger components;

[0035] Figure 8 yes Figure 6 a cross-sectional view of the middle air duct assembly and heat exchanger components, wherein the air duct switching door is in the second position;

[0036] Fig. 9 is along Figure 8 Sectional view of the middle BB line;

[0037] Fig.10 yes Figure 6 a cross-sectional view of the middle air duct assembly and heat exchanger components, wherein the air duct switching door is in a first position;

[0038] Fig.11 is along Fig.10 Section view of the mid-CC line;

[0039] Fig.12 yes Figure 7 A schematic diagram of the structure of the centrifugal air duct components;

[0040] Fig.13 yes Fig.12 Exploded view of the centrifugal air duct components;

[0041] Fig.14 yes Fig.13 Exploded view of the centrifugal volute;

[0042] Fig.15 yes Fig.13 Structural schematic diagram of the middle air outlet;

[0043] Fig.16 yes Fig.15 A schematic diagram of the middle air outlet from another angle;

[0044] Fig.17 is along Fig.16 Sectional view of the mid-DD line;

[0045] Fig.18 is a schematic structural diagram of the cooperation between the inlet end of the air outlet member and the centrifugal volute according to some embodiments of the present invention;

[0046] Fig.19 yes Fig.13 Schematic diagram of the assembly structure between the central air door motor, the centrifugal volute and the air duct switching door.

[0047] Reference numerals:

[0048] 100. Air conditioner indoor unit;

[0049] 10. Casing; 11. Back panel; 110. Air inlet; 111. Air inlet grille; 12. Front panel; 120. Barrier strip; 121. First air outlet; 122. First sub-air outlet; 123. Second sub-air outlet; 124. Second air outlet; 13. Air inlet cavity; 14. Top cover; 15. Base;

[0050] 20. heat exchanger component; 21. heat exchanger; 22. heat exchanger bracket; 23. first bracket portion; 231. first bracket wall; 232. first connection portion; 24. second bracket portion; 241. second bracket wall; 242. third connection portion; 25. electric auxiliary heating;

[0051] 30. Air duct components;

[0052] 4. Centrifugal air duct component; 41. Centrifugal air duct; 411. Wind wheel cavity; 412. Centrifugal air outlet cavity; 42. Centrifugal volute; 421. Wire hole; 422. Positioning protrusion; 43. Centrifugal wind wheel; 44. First centrifugal air outlet channel; 441. First air outlet channel; 442. Second air outlet channel; 45. Airflow inlet; 46. First airflow outlet; 47. Second airflow outlet; 4a. First motor; 48. Centrifugal front volute; 480. Butt joint; 481. Second mounting hole; 482. Positioning boss; 483. Second fixing hole; 484. Door axis hole; 49. Centrifugal rear volute;

[0053] 5. Crossflow air duct component; 50. Crossflow air duct; 51. Crossflow outlet channel; 52. Crossflow volute; 520. Air outlet end; 53. Crossflow volute body; 54. First baffle; 541. Second connecting part; 55. Second baffle; 551. Fourth connecting part; 552. Connecting wall; 57. Volute bottom plate; 59. Crossflow wind wheel; 5a. Second motor;

[0054] 6. air outlet frame member; 60. frame body; 61. first flange portion; 62. second flange portion; 63. first channel; 64. second channel; 65. third channel; 66. air duct partition; 67. connecting port;

[0055] 7. Air outlet piece; 70. Second centrifugal air outlet channel; 71. Inlet end; 711. Sealing flange; 712. First mounting hole; 713. Positioning hole; 714. First fastener; 72. Outlet end; 73. Air duct switching door; 731. Door body; 732. Door shaft; 74. Air door motor; 740. Mounting lug; 741. First fixing hole; 742. Motor shaft; 75. Second fastener. DETAILED DESCRIPTION

[0056] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0057] Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0058] Reference Figure 1-Figure 3 According to an embodiment of the present invention, the air conditioner comprises: a casing 10, a heat exchanger component 20 and an air duct assembly 30. The casing 10 has an air inlet 110, a first air outlet 121 and a second air outlet 124. The second air outlet 124 is located below the first air outlet 121. The air inlet 110 can be connected to the room, and the first air outlet 121 and the second air outlet 124 can also be connected to the room to facilitate air circulation. The heat exchanger component 20 is arranged in the casing 10. The airflow can enter the casing 10 from the air inlet 110 and exchange heat with the heat exchanger component 20 in the casing 10. The airflow after heat exchange can be blown into the room through the first air outlet 121 and the second air outlet 124 to adjust the indoor temperature.

[0059] Reference Figure 2-Figure 5 and Figure 8-Figure 11 The air duct assembly 30 is arranged in the casing 10, and the air duct assembly 30 includes a centrifugal air duct component 4, the centrifugal air duct component 4 includes a centrifugal volute 42 and a centrifugal wind wheel 43, the centrifugal volute 42 has a centrifugal air duct 41, the centrifugal air duct 41 is connected to the air inlet 110, and the centrifugal wind wheel 43 is arranged in the centrifugal air duct 41; the air duct assembly 30 also has a first centrifugal air outlet channel 44 and a second centrifugal air outlet channel 70.

[0060] The centrifugal volute 42 has an airflow inlet 45, a first airflow outlet 46 and a second airflow outlet 47. The airflow inlet 45 connects the air inlet 110 with the centrifugal air duct 41. The first airflow outlet 46 is suitable for connecting the centrifugal air duct 41 with the first centrifugal air outlet 44. The first centrifugal air outlet 44 is connected to the first air outlet 121. The second airflow outlet 47 is suitable for connecting the centrifugal air duct 41 with the second centrifugal air outlet 70. The second centrifugal air outlet 70 is connected to the second air outlet 124, which is convenient for airflow. The airflow entering the housing 10 from the air inlet 110 can enter the centrifugal air duct 41 through the airflow inlet 45. The airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet 44 through the first airflow outlet 46, and pass through the first air outlet 121 and blow out of the housing 10; the airflow in the centrifugal air duct 41 can also enter the second centrifugal air outlet 70 through the second airflow outlet 47, and blow out of the housing 10 through the second air outlet 124.

[0061] The airflow in the centrifugal air duct 41 can be discharged through the first air outlet 121 and the second air outlet 124, which is beneficial to increase the air output and the diffusion area of ​​the airflow; moreover, the wind pressure in the centrifugal air duct 41 is relatively large, and the airflow in the centrifugal air duct 41 is discharged through the first air outlet 121 and the second air outlet 124. The airflow diffuses over a long distance, which can increase the air supply distance, thereby increasing the speed of indoor temperature regulation and improving the uniformity of temperature in different areas of the room, thereby further improving the overall comfort of the indoor space.

[0062] It is easy to understand that cold air tends to sink, and the first air outlet 121 is located at a higher position. When the air conditioner is cooling, the cold air blown out from the first air outlet 121 can diffuse downward and far away, which can further increase the air supply distance and the coverage area of ​​the airflow, so that the cold air can be quickly mixed with the indoor air, achieving rapid cooling, improving the speed of indoor temperature regulation, and adjusting the temperature of different height areas, improving the uniformity of the temperature of different areas in the room. Hot air tends to float, and the second air outlet 124 is located at a lower position. When the air conditioner is heating, the hot air blown out from the second air outlet 124 can diffuse upward and far away, which can further increase the air supply distance and the coverage area of ​​the airflow, so that the hot air can be quickly mixed with the indoor air, achieving rapid heating, improving the speed of indoor temperature regulation, and adjusting the temperature of different height areas, improving the uniformity of the temperature of different areas in the room.

[0063] Therefore, by discharging air through the first air outlet 121 and the second air outlet 124, in the cooling or heating mode of the air conditioner, the air supply distance can be increased, the coverage area of ​​the airflow can be increased, and the principle of cold air sinking and hot air floating can be used to adjust the temperature of areas at different heights, increase the speed of indoor temperature regulation, and improve the uniformity of temperature in different areas of the room, thereby improving the overall comfort of the indoor space.

[0064] The above-mentioned air conditioner can be a split type air conditioner, for example, referring to Figure 1-Figure 3 The air conditioner can be a split floor-standing air conditioner, the air conditioner includes an air-conditioning indoor unit 100 and an air-conditioning outdoor unit, the air-conditioning indoor unit 100 is a cabinet unit, the air-conditioning indoor unit 100 includes the above-mentioned casing 10, a heat exchanger component 20, a centrifugal air duct component 4 and a cross-flow air duct component 5, the centrifugal air duct component 4 and the cross-flow air duct component 5 are both located on the front side of the heat exchanger component 20, the cross-flow air duct component 5 has a cross-flow air duct 50, and the air duct assembly 30 also has a cross-flow air outlet channel 51 connected to the cross-flow air duct 50. The casing 10 may include a back plate 11, a front panel 12, a top cover 14 and a base 15, the top cover 14 is located on the upper side of the back plate 11 and the front panel 12, and the base 15 is located on the lower side of the back plate 11 and the front panel 12; an air inlet 110 is formed on the back plate 11, an air inlet grille 111 is provided at the air inlet 110, and a first air outlet 121 and a second air outlet 124 are formed on the front panel 12.

[0065] For example, refer to Figure 1 and Figure 4 According to some specific embodiments of the present invention, two baffle bars 120 are provided in the first air outlet 121, and the two baffle bars 120 are arranged at intervals along the left-right direction to divide the first air outlet 121 into a first sub-air outlet 122 and two second sub-air outlets 123, and the two second sub-air outlets 123 are respectively located on the left and right sides of the first sub-air outlet 122. There are two first centrifugal air outlet channels 44, and the two first centrifugal air outlet channels 44 are respectively the first air outlet channel 441 and the second air outlet channel 442. The two first centrifugal air outlet channels 44 are respectively located on the left and right sides of the cross-flow air outlet channel 51, and the two first centrifugal air outlet channels 44 correspond to the two second sub-air outlets 123, respectively.

[0066] According to the air conditioner of the embodiment of the present invention, the second air outlet 124 is located below the first air outlet 121, and the air flow in the centrifugal air duct 41 can be discharged through the first air outlet 121 and the second air outlet 124, which is beneficial to increase the air output and increase the diffusion area of ​​the air flow; and the wind pressure in the centrifugal air duct 41 is relatively large, which helps to increase the air supply speed and increase the diffusion distance of the air flow, so as to increase the coverage area of ​​the air flow, so as to adjust the temperature of the indoor area far away from the casing 10, and when the air conditioner is in cooling and heating mode, it can adjust the temperature of areas at different heights, improve the speed of indoor temperature adjustment, and improve the uniformity of temperature in different areas of the room, thereby improving the overall comfort of the indoor space.

[0067] Reference Figure 8-Figure 13According to some embodiments of the present invention, the air duct assembly 30 includes an air outlet member 7, and a second centrifugal air outlet channel 70 is defined in the air outlet member 7. The air outlet member 7 has an inlet end 71 and an outlet end 72. The inlet end 71 is connected to the centrifugal volute 42 and is opposite to the second air outlet 47. The outlet end 72 is opposite to the second air outlet 124, which facilitates airflow. The airflow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air outlet 47, and be blown out of the housing 10 through the second air outlet 124.

[0068] Reference Fig.13 and Fig.18 According to some optional embodiments of the present invention, a sealing flange 711 is formed at the inlet end 71, and a docking surface 480 is formed at the outer peripheral edge of the second air flow outlet 47. The sealing flange 711 is connected to the docking surface 480, so that the air outlet piece 7 can be connected to the centrifugal volute 42, and the air outlet piece 7 is convenient to install. This is also conducive to enhancing the sealing between the second centrifugal air outlet channel 70 and the centrifugal air duct 41, preventing air leakage at the connection between the air outlet piece 7 and the centrifugal volute 42, thereby ensuring the air outlet volume at the second air outlet 124.

[0069] Reference Fig.13 and Fig.18 According to some optional embodiments of the present invention, the inlet end 71 is detachably connected to the centrifugal volute 42, which facilitates the disassembly and assembly of the air outlet member 7, and facilitates the maintenance or replacement of the air outlet member 7, and also facilitates the maintenance of the components in the centrifugal volute 42.

[0070] Reference Fig.13 and Fig.18 In some optional embodiments of the present invention, the inlet end 71 is provided with a first mounting hole 712 and a positioning hole 713, the centrifugal volute 42 is provided with a second mounting hole 481 and a positioning boss 482, the first fastener 714 is suitable for passing through the first mounting hole 712 and the second mounting hole 481, and the positioning boss 482 is inserted into the positioning hole 713, so that the air outlet member 7 can be fixedly connected to the centrifugal volute 42, and the connection stability is relatively strong.

[0071] Reference Figure 13-Figure 18In some optional embodiments of the present invention, the inlet end 71 is formed with a sealing flange 711, and the outer surface of the centrifugal volute 42 is formed with a docking surface 480, and the docking surface 480 surrounds the outer peripheral side of the second airflow outlet 47; wherein the first mounting hole 712 and the positioning hole 713 are both formed in the sealing flange 711, and the second mounting hole 481 and the positioning boss 482 are both provided on the docking surface 480. The stability of the connection between the air outlet 7 and the centrifugal volute 42 can be enhanced by the fixed connection between the sealing flange 711 and the docking surface 480, and the docking surface 480 surrounds the outer peripheral side of the second airflow outlet 47, which can enhance the air tightness at the second airflow outlet 47, so as to further improve the sealing between the second centrifugal air outlet channel 70 and the centrifugal air duct 41, and prevent air leakage at the connection between the air outlet 7 and the centrifugal volute 42, thereby ensuring the air volume at the second air outlet 124.

[0072] Reference Figure 8 and Fig.10 According to some optional embodiments of the present invention, the motor used to drive the centrifugal fan wheel 43 to rotate is the first motor 4a, and the first motor 4a is located below the air outlet member 7, which can avoid interference between the first motor 4a and the air outlet member 7, facilitate the installation of the air outlet member 7 and the first motor 4a, and make the internal structural layout of the air conditioner more reasonable, making the overall structure more compact.

[0073] Reference Fig.10 , Fig.13 and Fig.17 According to some embodiments of the present invention, the second air outlet 47 faces forward, the second air outlet 124 is formed on the front side wall of the housing 10, and in the direction from back to front, the second centrifugal air outlet channel 70 extends downwardly in an inclined direction, so that the airflow in the second centrifugal air outlet channel 70 can be directed downward, thereby realizing the downward air discharge of the air conditioner, and the temperature of the lower area of ​​the indoor space can be adjusted, which helps to improve the uniformity of the overall temperature of the indoor space. For example, when the air conditioner is heating, the second centrifugal air outlet channel 70 guides the airflow downward; hot air easily floats up, which can increase the coverage area of ​​the airflow, so that the hot air is quickly mixed with the indoor air, and the temperature rises quickly, which improves the speed of indoor temperature adjustment, and can adjust the temperature of different height areas.

[0074] Reference Figure 8 , Fig.10 and Fig.13 According to some embodiments of the present invention, the rotation axis of the centrifugal wind wheel 43 extends in the front-to-back direction, the centrifugal air duct 41 includes a wind wheel cavity 411 and a centrifugal air outlet cavity 412, the air flow inlet 45 is formed on the rear side wall of the wind wheel cavity 411, the centrifugal wind wheel 43 is located in the wind wheel cavity 411, the centrifugal air outlet cavity 412 is located above the wind wheel cavity 411, the first air flow outlet 46 is formed on the top wall of the centrifugal air outlet cavity 412, and the second air flow outlet 47 is formed on the front side wall of the centrifugal air outlet cavity 412.

[0075] When the centrifugal wind wheel 43 is working, negative pressure is formed in the wind wheel cavity 411, and the airflow outside the centrifugal air duct 41 can be sucked into the wind wheel cavity 411 from the airflow inlet 45, and under the action of the centrifugal wind wheel 43, the airflow in the wind wheel cavity 411 can enter the centrifugal air outlet cavity 412, and the airflow in the centrifugal air outlet cavity 412 can enter the first centrifugal air outlet channel 44 through the first airflow outlet 46, and the airflow in the centrifugal air outlet cavity 412 can also enter the second centrifugal air outlet channel 70 through the second airflow outlet 47.

[0076] The centrifugal air outlet chamber 412 is located above the wind wheel chamber 411, and the centrifugal wind wheel 43 is located in the wind wheel chamber 411, so that the overall structure of the centrifugal air duct component 4 is compact; the air flow inlet 45 is formed on the rear side wall of the wind wheel chamber 411, the first air flow outlet 46 is formed on the top wall of the centrifugal air outlet chamber 412, and the second air flow outlet 47 is formed on the front side wall of the centrifugal air outlet chamber 412, so that the air flow is convenient.

[0077] According to some embodiments of the present invention, the centrifugal air duct 41 and the first centrifugal air outlet channel 44 can be selectively connected or disconnected, and the centrifugal air duct 41 and the second centrifugal air outlet channel 70 can be selectively connected or disconnected, so that the airflow in the centrifugal air duct 41 can selectively enter the first centrifugal air outlet channel 44 or the second centrifugal air outlet channel 70, and thus the airflow in the centrifugal air duct 41 can selectively be discharged through the first air outlet 121 or the second air outlet 124; or, the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 and the second centrifugal air outlet channel 70, and the airflow in the centrifugal air duct 41 can be discharged through the first air outlet 121 and the second air outlet 124.

[0078] When the centrifugal air duct 41 is connected to the first centrifugal air outlet channel 44 and the centrifugal air duct 41 is separated from the second centrifugal air outlet channel 70, air can enter the centrifugal air duct 41 from the air inlet 110 of the casing 10 under the drive of the centrifugal wind wheel 43, and the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46, and the airflow flowing into the first centrifugal air outlet channel 44 can be discharged from the first air outlet 121 and blown into the room.

[0079] When the centrifugal air duct 41 is separated from the first centrifugal air outlet channel 44 and connected to the second centrifugal air outlet channel 70, air can enter the centrifugal air duct 41 from the air inlet 110 of the casing 10 under the drive of the centrifugal wind wheel 43, and the airflow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47, and the airflow flowing into the second centrifugal air outlet channel 70 can be discharged from the second air outlet 124 and blown into the room.

[0080] When the centrifugal air duct 41 is connected with the first centrifugal air outlet channel 44 and the second centrifugal air outlet channel 70, air can enter the centrifugal air duct 41 from the air inlet 110 of the casing 10 under the drive of the centrifugal wind wheel 43, and a part of the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46, and the airflow flowing into the first centrifugal air outlet channel 44 can be discharged from the first air outlet 121 and blown into the room; another part of the airflow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47, and the airflow flowing into the second centrifugal air outlet channel 70 can be discharged from the second air outlet 124 and blown into the room.

[0081] Reference Figure 8-Figure 13 According to some optional embodiments of the present invention, the centrifugal air duct component 4 further includes an air duct switching door 73, for example, the air duct switching door 73 may be in the shape of a flat plate. The air duct switching door 73 is movably disposed on the centrifugal volute 42, and is used to open or close the first air flow outlet 46 and the second air flow outlet 47. When the air duct switching door 73 opens the first air flow outlet 46, the centrifugal air duct 41 is connected to the first centrifugal air outlet channel 44, and the airflow in the centrifugal air duct 41 can be discharged through the first air outlet 121; when the air duct switching door 73 opens the second air flow outlet 47, the centrifugal air duct 41 is connected to the second centrifugal air outlet channel 70, and the airflow in the centrifugal air duct 41 can be discharged through the second air outlet 124.

[0082] Thus, by opening or closing the first airflow outlet 46 and the second airflow outlet 47 through the air duct switching door 73, the centrifugal air duct 41 can be selectively connected or disconnected with the first centrifugal air outlet channel 44, and the centrifugal air duct 41 can be selectively connected or disconnected with the second centrifugal air outlet channel 70, so that the air outlet position of the centrifugal air duct 41 is optional to meet the different needs of users. In addition, the opening and closing of the first airflow outlet 46 and the second airflow outlet 47 can be realized through the air duct switching door 73, which helps to reduce the number of parts.

[0083] Reference Fig.12 In some optional embodiments of the present invention, the motor for driving the air duct switching door 73 to move is a damper motor 74, which is installed in the centrifugal volute 42 and located outside the centrifugal air duct 41. For example, the damper motor 74 can be installed on the left or right side of the centrifugal volute 42. By installing the damper motor 74 in the centrifugal volute 42, the distance between the damper motor 74 and the air duct switching door 73 can be shortened, which facilitates the control connection between the damper motor 74 and the air duct switching door 73; the damper motor 74 is located outside the centrifugal air duct 41, which can avoid the damper motor 74 from interfering with the air flow in the centrifugal air duct 41, ensuring smooth air flow in the centrifugal air duct 41; in addition, when the air conditioner is cooling, condensation water can also be avoided on the damper motor 74.

[0084] Reference Fig.19 In some optional embodiments of the present invention, the damper motor 74 has a mounting lug 740, and the mounting lug 740 is connected to the centrifugal volute 42 through a second fastener 75, which can fix the damper motor 74 to the centrifugal volute 42 to achieve stability in the installation of the damper motor 74.

[0085] Optionally, the damper motor 74 has two mounting lugs 740, each mounting lug 740 is formed with a first fixing hole 741, and the upper end of the centrifugal volute 42 is formed with two second fixing holes 483, and the second fastener 75 is suitable for passing through the first fixing hole 741 and the second fixing hole 483 to fix the damper motor 74 to the centrifugal volute 42.

[0086] Reference Figure 8-Figure 13 In some optional embodiments of the present invention, the air duct switching door 73 is rotatably connected to the centrifugal volute 42, so as to facilitate opening or closing the first air flow outlet 46 and the second air flow outlet 47, thereby realizing connection or isolation between the centrifugal air duct 41 and the second centrifugal air outlet channel 70, and realizing connection or isolation between the centrifugal air duct 41 and the first centrifugal air outlet channel 44.

[0087] Reference Figure 8-Figure 11 In some optional embodiments of the present invention, the air duct switching door 73 has a first position and a second position. For example, the air door motor 74 can drive the air duct switching door 73 to rotate around its own rotation axis to achieve switching between the first position and the second position.

[0088] In the first position, the air duct switching door 73 closes the first air flow outlet 46 and opens the second air flow outlet 47, the centrifugal air duct 41 is separated from the first centrifugal air outlet channel 44, and the centrifugal air duct 41 is connected to the second centrifugal air outlet channel 70. The air flow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47 and be discharged through the second air outlet 124.

[0089] In the second position, the air duct switching door 73 closes the second air flow outlet 47 and opens the first air flow outlet 46, the centrifugal air duct 41 is separated from the first centrifugal air outlet channel 44, and the centrifugal air duct 41 is connected with the second centrifugal air outlet channel 70. The air flow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47, and be discharged through the second air outlet 124; at the same time, the centrifugal air duct 41 is connected with the first centrifugal air outlet channel 44, and the air flow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46, and be discharged through the first air outlet 121.

[0090] In some optional embodiments of the present invention, the air duct switching door 73 has a third position, the third position is between the first position and the third position, and in the third position, the air duct switching door 73 opens the second air flow outlet 47 and opens the first air flow outlet 46. The centrifugal air duct 41 is connected with the second centrifugal air outlet channel 70, and the air flow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47, and be discharged through the second air outlet 124; at the same time, the centrifugal air duct 41 is connected with the first centrifugal air outlet channel 44, and the air flow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46, and be discharged through the first air outlet 121.

[0091] Reference Fig.13 and Fig.19 According to some optional embodiments of the present invention, the motor used to drive the air duct switching door 73 to move is a damper motor 74, which is installed on the centrifugal volute 42 and located outside the centrifugal air duct 41; the air duct switching door 73 includes a door body 731 and a door shaft 732 connected to the opposite ends of the door body 731, and the opposite ends of the centrifugal volute 42 are respectively formed with door shaft holes 484, and the door shaft 732 can be rotatably matched with the door shaft hole 484. Through the cooperation between the door shaft hole 484 and the door shaft 732, the centrifugal volute 42 supports the air duct switching door 73, thereby ensuring the stability of the operation of the air duct switching door 73.

[0092] The motor shaft 742 of the damper motor 74 is connected to one of the door shafts 732, so that the damper motor 74 drives the air duct switching door 73 to rotate, thereby realizing the switching of the position of the air duct switching door 73. When the damper motor 74 is working, the motor shaft 742 drives the door shaft 732 to rotate, and then the door shaft 732 drives the door body 731 to rotate, thereby realizing the overall movement of the air duct switching door 73, and then realizing the opening or closing of the first airflow outlet 46 and the second airflow outlet 47.

[0093] Reference Figure 8-Figure 13 According to some optional embodiments of the present invention, the first air flow outlet 46 is formed at the upper end of the centrifugal volute 42 and faces upward, the second air flow outlet 47 is formed on the front side wall of the centrifugal volute 42, and one end of the air duct switching door 73 is rotatably connected between the first air flow outlet 46 and the second air flow outlet 47. Therefore, when the other end of the air duct switching door 73 moves to the first air flow outlet 46, the first air flow outlet 46 can be closed and the second air flow outlet 47 can be opened at the same time; when the other end of the air duct switching door 73 moves to the second air flow outlet 47, the second air flow outlet 47 can be closed and the first air flow outlet 46 can be opened at the same time, thereby realizing the opening or closing of the first air flow outlet 46 and the second air flow outlet 47 by rotating the air duct switching door 73.

[0094] Reference Fig.12 and Fig.14 The inner wall of the centrifugal volute 42 is provided with a limiting protrusion 422 for limiting the other end of the air duct switching door 73. When the air duct switching door 73 closes the first air flow outlet 46, the other end of the air duct switching door 73 is located at the lower side of the limiting protrusion 422, and the limiting protrusion 422 limits the other end of the air duct switching door 73 in the upward direction. Therefore, by limiting the position of the air duct switching door 73 by the limiting protrusion 422, the position change of the air duct switching door 73 when closing the first air flow outlet 46 can be avoided, thereby ensuring that the air duct switching door 73 closes the first air flow outlet 46, which is conducive to improving the reliability of the movement of the air duct switching door 73.

[0095] Reference Figure 8-Figure 10 According to some embodiments of the present invention, the air conditioner has a cooling mode and a heating mode; in the cooling mode, the centrifugal air duct 41 is connected to the first centrifugal air outlet channel 44, and the centrifugal air duct 41 is separated from the second centrifugal air outlet channel 70, and the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 and be discharged through the first air outlet 121. Cold air tends to sink, and the first air outlet 121 is located at a higher position, and the cold air blown out from the first air outlet 121 can diffuse downward and far away, which can further increase the air supply distance and the coverage area of ​​the airflow, so that the cold air can be quickly mixed with the indoor air to achieve rapid cooling. Optionally, the crossflow impeller 59 in the crossflow air duct 50 can be working. Under the drive of the crossflow impeller 59, the airflow in the crossflow air duct 50 enters the crossflow air outlet channel 51, and the airflow in the crossflow air outlet channel 51 is discharged through the first air outlet 121, so that the air volume can be guaranteed.

[0096] Figure 8 The direction indicated by the dashed arrow is the flow direction of the airflow in the crossflow air duct 50 and the crossflow air outlet channel 51 , and the direction indicated by the solid arrow is the flow direction of the airflow in the centrifugal air duct 41 and the first centrifugal air outlet channel 44 .

[0097] Reference Fig.10 In the heating mode, the centrifugal air duct 41 is separated from the first centrifugal air outlet channel 44 and connected to the second centrifugal air outlet channel 70, and the airflow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 and be discharged through the second air outlet 124. Hot air is easy to float, and the position of the second air outlet 124 is relatively low. The hot air blown out from the second air outlet 124 can diffuse upward and far away, which can further increase the air supply distance and the coverage area of ​​the airflow, so that the hot air is quickly mixed with the indoor air to achieve rapid temperature rise. Optionally, the crossflow wind wheel 59 in the crossflow air duct 50 can be working. Under the drive of the crossflow wind wheel 59, the airflow in the crossflow air duct 50 enters the crossflow air outlet channel 51, and the airflow in the crossflow air outlet channel 51 is discharged through the first air outlet 121, so that the air volume can be guaranteed.

[0098] Fig.10 The direction indicated by the dashed arrow is the flow direction of the airflow in the crossflow duct 50 and the crossflow outlet duct 51 , and the direction indicated by the solid arrow is the flow direction of the airflow in the centrifugal duct 41 and the second centrifugal outlet duct 70 .

[0099] Reference Figure 2-Figure 4 According to some embodiments of the present invention, the air duct assembly 30 further includes a crossflow air duct component 5, the centrifugal air duct component 4 is located below the crossflow air duct component 5, the crossflow air duct component 5 includes a crossflow volute 52 and a crossflow fan 59, the crossflow volute 52 has a crossflow air duct 50 connected to the air inlet 110, the crossflow fan 59 is arranged in the crossflow air duct 50, and the crossflow outlet channel 51 is suitable for connecting the crossflow air duct 50 with the first air outlet 121. The crossflow fan 59 can drive the airflow entering the housing 10 from the air inlet 110 to enter the crossflow air duct 50, and the airflow in the crossflow air duct 50 can be blown to the first air outlet 121 through the crossflow outlet channel 51 and blown out of the housing 10, so that the airflow flows smoothly.

[0100] Reference Figure 6 and Figure 12-14 According to some embodiments of the present invention, a wire hole 421 is formed on the centrifugal volute 42, and the motor used to drive the crossflow impeller 59 to rotate is the second motor 5a. For example, the rotation axis of the crossflow impeller 59 can extend in the up-down direction, and the second motor 5a can be located at the lower side of the crossflow impeller 59. The motor wire of the second motor 5a is suitable for routing through the wire hole 421, so that the routing is standardized and the wire management is convenient.

[0101] Reference Figure 1-Figure 3 According to some optional embodiments of the present invention, the air inlet 110 is formed at the rear of the housing 10, and the air inlet 110 extends in the up-down direction, which is conducive to increasing the air intake. An air inlet cavity 13 connected to the air inlet 110 is defined between the housing 10 and the air duct assembly 30, the heat exchanger component 20 is located in the air inlet cavity 13, the air flow inlet 45 and the cross-flow air duct 50 are both connected to the air inlet cavity 13, and the rotation axis of the centrifugal impeller 43 extends in the front-back direction.

[0102] Reference Figure 1-Figure 4 The first air outlet 121 and the second air outlet 124 are both formed on the front side wall of the casing 10, and the air inlet 110 and the first air outlet 121 and the second air outlet 124 are formed at different positions of the casing 10, which can prevent the airflows at the air inlet 110, the first air outlet 121 and the second air outlet 124 from interfering with each other.

[0103] The airflow can flow from the rear of the casing 10 to the front of the casing 10, and the airflow process is as follows: the airflow outside the casing 10 can enter the air inlet chamber 13 from the air inlet 110, and the airflow entering the air inlet chamber 13 can exchange heat with the heat exchanger component 20. The airflow after heat exchange can enter the cross-flow air duct 50, and the airflow in the cross-flow air duct 50 can be blown to the first sub-air outlet 122 through the cross-flow air outlet channel 51 and blown out of the casing 10; the airflow after heat exchange with the heat exchanger component 20 can also enter the centrifugal air duct 41 through the airflow inlet 45, and the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first airflow outlet 46, and pass through the second sub-air outlet 123 and blow out of the casing 10; the airflow entering the centrifugal air duct 41 can also be blown out of the casing 10 through the second airflow outlet 47 and the second air outlet 124.

[0104] Reference Figure 4-Figure 11 In some optional embodiments of the present invention, the air duct assembly 30 includes an air outlet frame component 6, which is located above the centrifugal air duct component 4 and in front of the crossflow air duct component 5, the first airflow outlet 46 faces upward, the bottom of the air outlet frame component 6 and the bottom of the crossflow volute 52 jointly cover the first airflow outlet 46, and the bottom of the air outlet frame component 6 and the bottom of the crossflow volute 52 jointly define a connecting port 67, which is used to connect the first airflow outlet 46 and the first centrifugal air outlet channel 44. The airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first airflow outlet and the connecting port 67, which facilitates the circulation of airflow.

[0105] The air outlet frame component 6 and the crossflow duct component 5 jointly define the crossflow outlet channel 51 and the centrifugal outlet channel, or the air outlet frame component 6, the crossflow duct component 5 and the heat exchanger component 20 jointly define the crossflow outlet channel 51 and the centrifugal outlet channel. In this way, the composition structure of the crossflow outlet channel 51 and the centrifugal outlet channel is relatively simple, and no additional components are required to form the outlet channel and the centrifugal outlet channel, which is conducive to cost saving. For example, the first air outlet channel 441 is jointly defined by the air outlet frame component 6, the crossflow duct component 5 and the heat exchanger component 20, and the second air outlet channel 442 is jointly defined by the air outlet frame component 6 and the crossflow duct component 5.

[0106] Reference Figure 8-Figure 11 The air outlet frame component 6 includes a frame body 60 and two air duct partitions 66. The bottom of the frame body 60 and the bottom of the crossflow volute 52 jointly cover the first air flow outlet 46. The bottom of the frame body 60 and the bottom of the crossflow volute 52 jointly define two connecting ports 67. The two connecting ports 67 are spaced apart in the left-right direction.

[0107] Continue to refer to Figure 8-Figure 11, two air duct baffles 66 are arranged in the frame 60, and the two air duct baffles 66 are arranged at intervals along the left-right direction. The two air duct baffles 66 divide the channel in the frame 60 into a first channel 63, a second channel 64 and a third channel 65, and the first channel 63, the second channel 64 and the third channel 65 are arranged in sequence along the left-right direction, the first channel 63, the second channel 64 and the third channel 65, wherein the crossflow outlet channel 51 includes the second channel 64, the two air duct baffles 66 are connected to the outlet end 520 of the crossflow volute 52, the first outlet channel 441 includes the first channel 63, and the second outlet channel 442 includes the third channel 65. For example, the air duct baffle 66 and the outlet end 520 of the crossflow volute 52 can be snap-connected.

[0108] The channels in the frame 60 are divided into a first channel 63, a second channel 64 and a third channel 65 by two air duct partitions 66. This can prevent the airflows in the first channel 63, the second channel 64 and the third channel 65 from interfering with each other, which is beneficial to improving the uniformity of the airflows in the first channel 63, the second channel 64 and the third channel 65.

[0109] Refer to the following Figure 1-Figure 19 An air conditioner according to an embodiment of the present invention is described.

[0110] Reference Figure 1-Figure 19 In this embodiment, the air conditioner is a split floor-standing air conditioner, and the air conditioner includes an air conditioner indoor unit 100 and an air conditioner outdoor unit. The air conditioner indoor unit 100 is a cabinet unit, and the air conditioner indoor unit 100 includes a housing 10, a heat exchanger component 20, and an air duct component. An air inlet cavity 13 communicating with an air inlet 110 is defined between the housing 10 and the air duct assembly 30, and the heat exchanger component 20 is located in the air inlet cavity 13. The air duct assembly 30 includes a centrifugal air duct component 4, a crossflow air duct component 5, and an air outlet frame component 6. The centrifugal air duct component 4 and the crossflow air duct component 5 are both located at the front side of the heat exchanger component 20, the crossflow air duct component 5 is located at the upper side of the centrifugal air duct component 4, and the air outlet frame component 6 is located above the centrifugal air duct component 4 and at the front side of the crossflow air duct component 5.

[0111] The casing 10 may include a back plate 11, a front panel 12, a top cover 14 and a base 15, the top cover 14 is located on the upper side of the back plate 11 and the front panel 12, and the base 15 is located on the lower side of the back plate 11 and the front panel 12; an air inlet 110 extending in the up-down direction is formed on the back plate 11, and an air inlet grille 111 is provided at the air inlet 110, a first air outlet 121 and a second air outlet 124 are formed on the front panel 12, the second air outlet 124 is located below the first air outlet 121, and the first air outlet 121 includes a first sub-air outlet 122 and a second sub-air outlet 123. Two barrier strips 120 are provided in the first air outlet 121 , and the two barrier strips 120 are spaced apart along the left-right direction to separate the first air outlet 121 into a first sub-air outlet 122 and two second sub-air outlets 123 , and the two second sub-air outlets 123 are respectively located on the left and right sides of the first sub-air outlet 122 .

[0112] The air duct assembly 30 has a crossflow air outlet channel 51 and two first centrifugal air outlet channels 44. The crossflow air outlet channel 51 and the first centrifugal air outlet channels 44 are separated from each other and arranged in the left-right direction. The crossflow air outlet channel 51 connects the crossflow air duct 50 with the first sub-air outlet 122, and the two first centrifugal air outlet channels 44 correspond to the two second sub-air outlets 123 respectively. The two first centrifugal air outlet channels 44 are respectively the first air outlet channel 441 and the second air outlet channel 442. The first air outlet channel 441 is located on the left side of the crossflow air outlet channel 51, and the second air outlet channel 442 is located on the right side of the crossflow air outlet channel 51. The first air outlet channel 441 is defined by the air outlet frame component 6, the crossflow air duct component 5 and the heat exchanger component 20, and the second air outlet channel 442 is defined by the air outlet frame component 6 and the crossflow air duct component 5.

[0113] The crossflow duct component 5 includes a crossflow volute 52 and a crossflow impeller 59. The crossflow volute 52 has a crossflow duct 50 connected to the air inlet 110. The crossflow impeller 59 is arranged in the crossflow duct 50. The motor used to drive the crossflow impeller 59 to rotate is a second motor 5a. The rotation axis direction of the crossflow impeller 59 extends in the up-down direction. The crossflow volute 52 includes a volute bottom plate 57 located at the bottom of the crossflow volute 52. A side of the volute bottom plate 57 adjacent to the heat exchanger component 20 is formed with an avoidance gap, and the avoidance gap is used to avoid the electric auxiliary heat 25.

[0114] The crossflow volute 52 further includes a crossflow volute 52 body, a first baffle 54 and a second baffle 55. The crossflow air duct 50 is formed in the crossflow volute 52 body. The first baffle 54 is connected to the left side of the crossflow volute 52 body, and the second baffle 55 is connected to the right side of the crossflow volute 52 body. The first baffle 54 is located between the first air outlet channel 441 and the air inlet chamber 13 to separate the first air outlet channel 441 from the air inlet chamber 13; the second baffle 55 is located at the rear end of the second air outlet channel 442 to block the rear end of the second air outlet channel 442.

[0115] The air outlet frame component 6 includes a frame body 60 and two air duct partitions 66. The bottom of the frame body 60 and the bottom of the cross-flow volute 52 jointly cover the first airflow outlet 46. The bottom of the frame body 60 and the bottom of the cross-flow volute 52 jointly define two connecting ports 67. The two connecting ports 67 are spaced apart in the left-right direction. The connecting ports 67 are used to connect the first airflow outlet 46 and the first centrifugal air outlet channel 44.

[0116] Two air duct partitions 66 are arranged in the frame 60, and the two air duct partitions 66 are spaced apart in the left-right direction. The two air duct partitions 66 divide the channels in the frame 60 into a first channel 63, a second channel 64 and a third channel 65. The first channel 63, the second channel 64 and the third channel 65 are arranged in sequence in the left-right direction, wherein the cross-flow air outlet channel 51 includes the second channel 64, the two air duct partitions 66 are connected to the air outlet end 520 of the cross-flow volute 52, the first air outlet channel 441 includes the first channel 63, and the second air outlet channel 442 includes the third channel 65.

[0117] A second flange portion 62 is formed at the rear end of the frame body 60, and the second flange portion 62 is located at the right end of the frame body 60, and the second baffle 55 has a fourth connecting portion 551, and the fourth connecting portion 551 is opposite to and connected to the second flange portion 62 in the front-to-back direction; the second flange portion 62 is located on the front side of the fourth connecting portion 551, and the surface of the fourth connecting portion 551 constitutes the inner wall surface of the second air outlet channel 442 as the connecting wall surface 552, and the surface of the frame body 60 adjacent to the second flange portion 62 facing the first centrifugal air outlet channel 44 is flush with the connecting wall surface 552.

[0118] The heat exchanger component 20 includes a heat exchanger 21, an electric auxiliary heat 25 and a heat exchanger bracket 22, and the heat exchanger bracket 22 is fixedly connected to the back plate 11. The heat exchanger bracket 22 includes a first bracket portion 23 and a second bracket portion 24, the first bracket portion 23 and the second bracket portion 24 are arranged at an angle, and the first bracket portion 23 and the second bracket portion 24 define a part of the first air outlet channel 441.

[0119] The first bracket portion 23 includes a first connecting portion 232, and the first baffle 54 includes a second connecting portion 541, and the second connecting portion 541 is opposite to and connected to the first connecting portion 232 in the front-to-back direction; the second connecting portion 541 is located on the front side of the first connecting portion 232, and the surface of the first bracket portion 23 that constitutes the inner wall surface of the first air outlet channel 441 is the first bracket wall surface 231, and the surface of the second connecting portion 541 facing the first centrifugal air outlet channel 44 is arranged flush with the first bracket wall surface 231.

[0120] The second bracket part 24 has a third connection part 242, a first flange part 61 is formed at the rear end of the frame body 60, and the first flange part 61 is located at the left end of the frame body 60, and the first flange part 61 is opposite to and connected to the third connection part 242 in the front-to-back direction; the first flange part 61 is located at the front side of the third connection part 242, and the surface of the second bracket part 24 that constitutes the inner wall surface of the first air outlet channel 441 is the second bracket wall surface 241, and the surface of the frame body 60 adjacent to the first flange part 61 facing the first centrifugal air outlet channel 44 is flush with the second bracket wall surface 241. The first bracket part 23 is connected to the first baffle 54, and the second bracket part 24 is connected to the frame body 60.

[0121] The centrifugal air duct component 4 includes a centrifugal volute 42 and a centrifugal fan wheel 43. A wire hole 421 is formed on the centrifugal volute 42, and the motor wire of the second motor 5a is suitable for routing through the wire hole 421. The centrifugal volute 42 has a centrifugal air duct 41 connected to the air inlet 110, and the centrifugal fan wheel 43 is arranged in the centrifugal air duct 41. The motor used to drive the centrifugal fan wheel 43 to rotate is the first motor 4a, and the rotation axis of the centrifugal fan wheel 43 extends along the front-to-back direction.

[0122] The centrifugal volute 42 has an airflow inlet 45, a first airflow outlet 46 and a second airflow outlet 47. The airflow inlet 45 connects the centrifugal air duct 41 with the air inlet 110. The first airflow outlet 46 faces upwards and is suitable for connecting the centrifugal air duct 41 with the first centrifugal air outlet 44. The first centrifugal air outlet 44 is connected with the second sub-air outlet 123. The second airflow outlet 47 faces the front side and is suitable for connecting with the second air outlet 124. The centrifugal volute 42 includes a centrifugal front volute 48 and a centrifugal rear volute 49, which are detachably connected. The centrifugal air duct 41 includes a wind wheel cavity 411 and a centrifugal air outlet cavity 412. The air flow inlet 45 is formed on the rear side wall of the wind wheel cavity 411. The centrifugal wind wheel 43 is located in the wind wheel cavity 411. The centrifugal air outlet cavity 412 is located above the wind wheel cavity 411. The first air flow outlet 46 is formed on the top wall of the centrifugal air outlet cavity 412. The second air flow outlet 47 is formed on the front side wall of the centrifugal air outlet cavity 412.

[0123] A second centrifugal air outlet channel 70 is defined in the air outlet member 7. In the direction from back to front, the second centrifugal air outlet channel 70 extends obliquely downward, and the second centrifugal air outlet channel 70 is suitable for connecting the second airflow outlet 47 with the second air outlet 124. The air outlet member 7 has an inlet end 71 and an outlet end 72. The inlet end 71 is connected to the centrifugal front volute 48 and is opposite to the second airflow outlet 47, and the outlet end 72 is opposite to the second air outlet 124. A sealing flange 711 is formed at the inlet end 71 of the air outlet member 7, and a docking surface 480 is formed along the outer periphery of the second airflow outlet 47. The docking surface 480 is located at the centrifugal front volute 48 and surrounds the outer periphery of the second airflow outlet 47, and the sealing flange 711 is connected to the docking surface 480.

[0124] The inlet end 71 is provided with a first mounting hole 712 and a positioning hole 713 , the centrifugal volute 42 is provided with a second mounting hole 481 and a positioning boss 482 , the first fastener 714 is adapted to be inserted through the first mounting hole 712 and the second mounting hole 481 , and the positioning boss 482 is inserted into the positioning hole 713 .

[0125] The centrifugal air duct component 4 also includes an air duct switching door 73, which is rotatably connected to the centrifugal volute 42, and the motor drives the air duct switching door 73 to rotate. The motor used to drive the air duct switching door 73 to move is a damper motor 74, which is installed on the centrifugal volute 42 and is located outside the centrifugal air duct 41. The air duct switching door 73 includes a door body 731 and a door shaft 732, the door shaft 732 is connected to the opposite ends of the door body 731, and the opposite ends of the centrifugal volute 42 are respectively formed with door shaft holes 484, the door shaft 732 is rotatably matched with the door shaft hole 484, and the motor shaft 742 of the damper motor 74 is connected to one of the door shafts 732. The damper motor 74 has two mounting lugs 740, each of which has a first fixing hole 741. The upper end of the centrifugal volute 42 has two second fixing holes 483. The second fastener 75 is suitable for passing through the first fixing hole 741 and the second fixing hole 483 to fix the damper motor 74 to the centrifugal volute 42.

[0126] The air duct switching door 73 has a first position, a second position and a third position. When the air duct switching door 73 is in the first position, the air duct switching door 73 closes the first air flow outlet 46 and opens the second air flow outlet 47, the centrifugal air duct 41 is connected to the second centrifugal air outlet channel 70, and the air flow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47 and be discharged through the second air outlet 124. A plurality of limiting protrusions 422 are provided at the first air flow outlet 46 of the centrifugal volute 42, and when the air duct switching door 73 is in the first position, the limiting protrusions 422 abut against the upper surface of the air duct switching door 73.

[0127] When the air duct switching door 73 is in the second position, the air duct switching door 73 closes the second air flow outlet 47 and opens the first air flow outlet 46, the centrifugal air duct 41 is connected to the first centrifugal air outlet channel 44, and the air flow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46 and be discharged through the first air outlet 121.

[0128] When the air duct switching door 73 is in the third position, the air duct switching door 73 opens the second air flow outlet 47 and opens the first air flow outlet 46, and the centrifugal air duct 41 is connected with the second centrifugal air outlet channel 70. The air flow in the centrifugal air duct 41 can enter the second centrifugal air outlet channel 70 through the second air flow outlet 47, and be discharged through the second air outlet 124. At the same time, the centrifugal air duct 41 is connected with the first centrifugal air outlet channel 44, and the air flow in the centrifugal air duct 41 can enter the first centrifugal air outlet channel 44 through the first air flow outlet 46, and be discharged through the first air outlet 121.

[0129] The air conditioner has a cooling mode and a heating mode. In the cooling mode, the air duct switching door 73 is located at the second position, and the centrifugal air duct 41 is connected to the first centrifugal air outlet channel 44 and is separated from the second centrifugal air outlet channel 70.

[0130] The flow process of the airflow is as follows: the centrifugal wind wheel 43 rotates, the indoor air can enter the air inlet chamber 13 through the air inlet 110, the airflow entering the air inlet chamber 13 can exchange heat with the heat exchanger component 20, the airflow after heat exchange can enter the centrifugal air duct 41 through the airflow inlet 45, the airflow in the centrifugal air duct 41 can enter the first centrifugal air outlet 44 through the first airflow outlet 46, and blow out of the housing 10 through the second sub-air outlet 123; at the same time, the crossflow wind wheel 59 rotates, the airflow after heat exchange in the air inlet chamber 13 can also enter the crossflow air duct 50, and the airflow in the crossflow air duct 50 can be blown out of the housing 10 through the crossflow air outlet 51 and the first sub-air outlet 122. Cold air tends to sink, and the first sub-air outlet 122 and the second sub-air outlet 123 are located at a higher position, so that the blown cold air can spread downward and far away to increase the coverage area of ​​the airflow, so that the cold air can be quickly mixed with the indoor air to achieve rapid cooling.

[0131] In the heating mode, the air duct switching door 73 is located at the first position, the centrifugal air duct 41 is separated from the first centrifugal air outlet channel 44 and is connected to the second centrifugal air outlet channel 70 .

[0132] The flow process of the airflow is as follows: the centrifugal wind wheel 43 rotates, the indoor air can enter the air inlet chamber 13 through the air inlet 110, the airflow entering the air inlet chamber 13 can exchange heat with the heat exchanger component 20, the airflow after heat exchange can enter the centrifugal air duct 41 through the airflow inlet 45, the airflow in the centrifugal air duct 41 can enter the second centrifugal air outlet 70 through the second airflow outlet 47, and blow out of the housing 10 through the second air outlet 124; hot air is easy to float, and the position of the second air outlet 124 is relatively low, and the blown hot air can diffuse upward and far away to increase the coverage area of ​​the airflow. At the same time, the crossflow wind wheel 59 rotates, the airflow after heat exchange in the air inlet chamber 13 can also enter the crossflow air duct 50, and the airflow in the crossflow air duct 50 can be blown out of the housing 10 through the crossflow air outlet 51 and the first sub-air outlet 122 to increase the air volume, so that the hot air can be quickly mixed with the indoor air to achieve rapid temperature rise.

[0133] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0134] In the description of the present invention, "plurality" means two or more.

[0135] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0136] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0137] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0138] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A housing having an air inlet, a first air outlet and a second air outlet, wherein the second air outlet is located below the first air outlet; A heat exchanger component is disposed in the casing; an air duct assembly, disposed in the housing and comprising a centrifugal air duct component, wherein the centrifugal air duct component comprises a centrifugal volute and a centrifugal wind wheel, wherein the centrifugal volute has a centrifugal air duct connected to the air inlet, the centrifugal wind wheel is disposed in the centrifugal air duct, and the air duct assembly further comprises a first centrifugal air outlet channel and a second centrifugal air outlet channel; In which, the centrifugal volute has an air flow inlet, a first air flow outlet and a second air flow outlet, the air flow inlet connects the air inlet with the centrifugal air duct, the first air flow outlet is suitable for connecting the centrifugal air duct with the first centrifugal air outlet channel, the first centrifugal air outlet channel is connected with the first air outlet, the second air flow outlet is suitable for connecting the centrifugal air duct with the second centrifugal air outlet channel, the second centrifugal air outlet channel is connected with the second air outlet.

2. The air conditioner according to claim 1, characterized in that: The air duct assembly includes an air outlet member, in which the second centrifugal air outlet channel is defined, and the air outlet member has an inlet end and an outlet end, the inlet end is connected to the centrifugal volute and opposite to the second air flow outlet, and the outlet end is opposite to the second air outlet.

3. The air conditioner according to claim 2, characterized in that: The inlet end is formed with a sealing flange, the outer peripheral edge of the second airflow outlet is formed with a butt joint surface, and the sealing flange is connected to the butt joint surface.

4. The air conditioner according to claim 2, characterized in that: The inlet end is detachably connected to the centrifugal volute.

5. The air conditioner according to claim 4, characterized in that: The inlet end is provided with a first mounting hole and a positioning hole, the centrifugal volute is provided with a second mounting hole and a positioning boss, the first fastener is suitable for passing through the first mounting hole and the second mounting hole, and the positioning boss is inserted into the positioning hole.

6. The air conditioner according to claim 5, characterized in that: The inlet end is formed with a sealing flange, the outer surface of the centrifugal volute is formed with a docking surface, and the docking surface surrounds the outer peripheral side of the second airflow outlet; Wherein, the first mounting hole and the positioning hole are both formed in the sealing flange, and the second mounting hole and the positioning boss are both arranged on the docking surface.

7. The air conditioner according to claim 2, characterized in that: The motor used to drive the centrifugal wind wheel to rotate is a first motor, and the first motor is located below the air outlet member.

8. The air conditioner according to claim 1, characterized in that: The second air flow outlet faces forward, and the second air outlet is formed on the front side wall of the housing. In the direction from back to front, the second centrifugal air outlet channel extends obliquely downward.

9. The air conditioner according to claim 1, characterized in that: The rotation axis of the centrifugal wind wheel extends in the front-to-back direction, the centrifugal air duct includes a wind wheel cavity and a centrifugal air outlet cavity, the air flow inlet is formed on the rear side wall of the wind wheel cavity, the centrifugal wind wheel is located in the wind wheel cavity, the centrifugal air outlet cavity is located above the wind wheel cavity, the first air flow outlet is formed on the top wall of the centrifugal air outlet cavity, and the second air flow outlet is formed on the front side wall of the centrifugal air outlet cavity.

10. The air conditioner according to claim 1, characterized in that: The centrifugal air duct and the first centrifugal air outlet channel can be selectively connected or isolated; and / or, the centrifugal air duct and the second centrifugal air outlet channel can be selectively connected or isolated.

11. The air conditioner according to claim 10, characterized in that: The centrifugal air duct component further includes an air duct switching door, which is movably disposed on the centrifugal volute and is used to open or close the first air flow outlet and the second air flow outlet.

12. The air conditioner according to claim 11, characterized in that: The motor used to drive the air duct switching door to move is a damper motor, and the damper motor is installed on the centrifugal volute and is located outside the centrifugal air duct.

13. The air conditioner according to claim 12, characterized in that: The damper motor has a mounting lug, and the mounting lug is connected to the centrifugal volute through a second fastener.

14. The air conditioner according to claim 11, characterized in that: The air duct switching door is rotatably connected to the centrifugal volute.

15. The air conditioner according to claim 14, characterized in that: The air duct switching door has a first position and a second position; In the first position, the air duct switching door closes the first air flow outlet and opens the second air flow outlet; in the second position, the air duct switching door closes the second air flow outlet and opens the first air flow outlet.

16. The air conditioner according to claim 15, characterized in that: The air duct switching door has a third position, and the third position is located between the first position and the third position. In the third position, the air duct switching door opens the second air flow outlet and opens the first air flow outlet.

17. The air conditioner according to claim 14, characterized in that: The motor used to drive the air duct switching door to move is a damper motor, and the damper motor is installed on the centrifugal volute and is located outside the centrifugal air duct; The air duct switching door includes a door body and door shafts connected to opposite ends of the door body. Door shaft holes are respectively formed at opposite ends of the centrifugal volute. The door shafts are rotatably engaged with the door shaft holes. The motor shaft of the damper motor is connected to one of the door shafts.

18. The air conditioner according to claim 14, characterized in that: The first air flow outlet is formed at the upper end of the centrifugal volute and faces upward, the second air flow outlet is formed on the front side wall of the centrifugal volute, one end of the air duct switching door is rotatably connected between the first air flow outlet and the second air flow outlet, and the inner wall of the centrifugal volute is provided with a limiting protrusion for limiting the other end of the air duct switching door. When the air duct switching door closes the first air flow outlet, the other end of the air duct switching door is located at the lower side of the limiting protrusion.

19. The air conditioner according to claim 10, characterized in that: The air conditioner has a cooling mode and a heating mode; In the cooling mode, the centrifugal air duct is connected to the first centrifugal air outlet channel and is separated from the second centrifugal air outlet channel; In the heating mode, the centrifugal air duct is separated from the first centrifugal air outlet channel and is connected to the second centrifugal air outlet channel.

20. The air conditioner according to any one of claims 1 to 19, characterized in that: The air duct assembly also includes a crossflow air duct component and a crossflow air outlet channel. The centrifugal air duct component is located below the crossflow air duct component. The crossflow air duct component includes a crossflow volute and a crossflow wind wheel. The crossflow volute has a crossflow air duct connected to the air inlet. The crossflow wind wheel is arranged in the crossflow air duct. The crossflow air outlet channel is suitable for connecting the crossflow air duct with the first air outlet.

21. The air conditioner according to claim 20, characterized in that: A wire passing hole is formed on the centrifugal volute, and the motor used to drive the crossflow impeller to rotate is a second motor, and the motor wire of the second motor is suitable for routing through the wire passing hole.

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