Air conditioner indoor unit, air conditioner, and control method of air conditioner indoor unit

Abstract

The present invention discloses an air conditioner indoor unit, an air conditioner, and a control method for the air conditioner indoor unit. The air conditioner indoor unit includes a casing, an air duct component, a fresh air fan, and an indoor heat exchanger. An air outlet, a first indoor air inlet, and a fresh air inlet are provided on the casing; the air duct component is arranged inside the casing, and the air duct component and the casing cooperate to define a main air duct and an auxiliary air duct arranged at intervals. The air outlet end of the auxiliary air duct is arranged adjacent to the air outlet end of the main air duct. The main air duct is respectively communicated with the air outlet and the first indoor air inlet, the auxiliary air duct is communicated with the air outlet, and the air duct component includes a main fan, and the main fan is arranged in the main air duct; the fresh air fan is arranged inside the casing, the air inlet end of the fresh air fan is communicated with the fresh air inlet, and the air outlet end of the fresh air fan is communicated with the auxiliary air duct to send air toward the auxiliary air duct. The air conditioner indoor unit of the present invention can increase the air volume of the air outlet. Moreover, the fresh air fan makes the indoor air fresher and improves the comfort of using the air conditioner indoor unit.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular, to an air conditioner indoor unit, an air conditioner, and a control method for an air conditioner indoor unit. Background Art

[0002] In the technical field of air conditioning, most air conditioner indoor units have a single air duct. The indoor normal-temperature air is sucked from the air inlet by a blower wheel, undergoes heat exchange through a heat exchanger, and then the heat-exchanged air is sent out from the air outlet. This heat-exchanged air enters the indoor space to exchange heat with the indoor normal-temperature air, thereby achieving the effect of reducing or increasing the indoor temperature. However, the air volume of the above-mentioned air conditioner indoor unit is small, the heat exchange effect is poor, and fresh air cannot be introduced into the room during refrigeration or heating. Summary of the Invention

[0003] The present invention provides an air conditioner indoor unit, which has the advantages of a large air volume and clean air.

[0004] The present invention provides an air conditioner, which has the above-mentioned air conditioner indoor unit.

[0005] The present invention provides a control method for an air conditioner indoor unit, which is used to control the above-mentioned air conditioner indoor unit.

[0006] The air conditioner indoor unit according to an embodiment of the present invention includes a housing, on which an air outlet, a first indoor air inlet, and a fresh air inlet are provided; a duct component, which is arranged in the housing, and the duct component and the housing cooperate to define a main duct and an auxiliary duct arranged at intervals. The air outlet end of the auxiliary duct is arranged adjacent to the air outlet end of the main duct. The main duct is respectively communicated with the air outlet and the first indoor air inlet, and the auxiliary duct is communicated with the air outlet. The duct component includes a main blower, which is arranged in the main duct; a fresh air blower, which is arranged in the housing, the air inlet end of the fresh air blower is communicated with the fresh air inlet, and the air outlet end of the fresh air blower is communicated with the auxiliary duct to supply air towards the auxiliary duct; and an indoor heat exchanger, which is arranged in the housing and located between the first indoor air inlet and the main blower.

[0007] An air conditioner indoor unit according to an embodiment of the present invention defines a main air duct and an auxiliary air duct which are arranged at intervals through the cooperation of an air duct component and a housing. The air outlet end of the auxiliary air duct is arranged adjacent to the air outlet end of the main air duct. When the main air duct blows air at the air outlet end, the air flow in the auxiliary air duct will be carried out of the auxiliary air duct. Thus, the air volume of the air outlet can be increased, and the refrigeration or heating effect of the air conditioner indoor unit can be better. Moreover, the air outlet end of the fresh air fan is communicated with the auxiliary air duct to send air towards the auxiliary air duct, so that the fresh air fan can drive outdoor fresh air to flow from the fresh air inlet to the auxiliary air duct. When the air outlet end of the main air duct sends cold air or hot air into the room, the fresh air in the auxiliary air duct can be carried out. Thus, the air conditioner indoor unit can introduce outdoor fresh air both when refrigerating or heating, making the indoor air fresher and improving the use comfort of the air conditioner indoor unit.

[0008] In some embodiments, the air duct component includes an air duct housing having an air duct opening. The main fan is arranged in the air duct housing, and the main fan and the inner wall of the air duct housing define the main air duct. The auxiliary air duct is defined between the outer wall of the air duct housing and the inner wall of the housing.

[0009] In some embodiments, the air duct housing is rotatable relative to the housing.

[0010] In some embodiments, the fresh air fan is located below the air duct component, and the air outlet end of the fresh air fan faces upward to send air towards the auxiliary air duct.

[0011] In some embodiments, the first indoor air inlet is arranged on the left side wall and / or the right side wall of the housing.

[0012] In some embodiments, the main fan is a centrifugal fan.

[0013] In some embodiments, a second indoor air inlet is arranged on the housing, and the second indoor air inlet is communicated with the auxiliary air duct.

[0014] In some embodiments, a first switch door is arranged on the housing, and the first switch door is used to open or close the second indoor air inlet.

[0015] In some embodiments, there are multiple main air ducts, and the air outlet end of each auxiliary air duct is correspondingly arranged outside the air outlet end of each main air duct.

[0016] In some embodiments, the housing includes a main body frame and a housing body. The main body frame is arranged in the housing body. The air outlet, the first indoor air inlet and the fresh air inlet are arranged on the housing body. The air duct component and the fresh air fan are both installed on the main body frame.

[0017] The air conditioner according to an embodiment of the present invention includes the indoor unit of the air conditioner as described above.

[0018] The air conditioner according to an embodiment of the present invention defines a main air duct and an auxiliary air duct which are arranged at intervals through the cooperation of the air duct component and the casing. The air outlet end of the auxiliary air duct is arranged adjacent to the air outlet end of the main air duct. When the main air duct discharges air at the air outlet end, the air flow in the auxiliary air duct will be taken out of the auxiliary air duct. Thus, the air volume discharged from the air outlet can be increased, making the refrigeration or heating effect of the indoor unit of the air conditioner better. Moreover, the air outlet end of the fresh air fan is communicated with the auxiliary air duct to send air towards the auxiliary air duct, so that the fresh air fan can drive the outdoor fresh air to flow from the fresh air inlet to the auxiliary air duct. When the air outlet end of the main air duct conveys cold air or hot air into the room, the fresh air in the auxiliary air duct can be taken out. Thus, the indoor unit of the air conditioner can introduce outdoor fresh air both during refrigeration and heating, making the indoor air fresher and improving the comfort of using the indoor unit of the air conditioner.

[0019] A control method for an indoor unit of an air conditioner according to an embodiment of the present invention, wherein the indoor unit of the air conditioner is the indoor unit of the air conditioner as described above, and the control method includes:

[0020] Obtain the operating mode of the indoor unit of the air conditioner;

[0021] Adjust the orientation of the air duct opening of the air duct housing according to the operating mode of the indoor unit of the air conditioner;

[0022] Determine whether to adjust the air outlet angle;

[0023] If adjustment is required, adjust the orientation of the air duct opening of the air duct housing.

[0024] The control method for the indoor unit of the air conditioner according to the embodiment of the present invention can facilitate the adjustment of the orientation of the air duct opening and the adjustment of the air outlet angle, so as to meet the diverse air outlet requirements of users.

[0025] In some embodiments, the indoor unit of the air conditioner has an automatic adjustment mode and a manual adjustment mode. In the automatic adjustment mode, the air duct housing rotates reciprocally. In the manual adjustment mode, the air duct housing is controlled to rotate by a single click.

[0026] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the 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 obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0028] Figure 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0029] Figure 2 is an exploded view of an indoor air conditioner according to an embodiment of the present invention;

[0030] Figure 3 is a cross-sectional view of an indoor air conditioner according to an embodiment of the present invention;

[0031] Figure 4 is a cross-sectional view of an indoor air conditioner according to an embodiment of the present invention;

[0032] Figure 5 is a schematic structural view of an indoor air conditioner according to an embodiment of the present invention;

[0033] Figure 6 is a schematic partial structural view of an indoor air conditioner according to an embodiment of the present invention;

[0034] Figure 7 is a schematic partial structural view of an indoor air conditioner according to an embodiment of the present invention;

[0035] Figure 8 is a schematic partial structural view of an indoor air conditioner according to an embodiment of the present invention;

[0036] Figure 9 is a schematic partial structural view of an indoor air conditioner according to an embodiment of the present invention;

[0037] Figure 10 is a partial exploded view of an indoor air conditioner according to an embodiment of the present invention;

[0038] Figure 11 is a flowchart of a control method for an indoor air conditioner according to an embodiment of the present invention.

[0039] Reference numerals:

[0040] Indoor air conditioner 100,

[0041] Cabinet 1,

[0042] Main body frame 11,

[0043] Skeleton 111, first installation cavity 1111, installation opening 1112, second installation cavity 1113,

[0044] Fixing bracket 112, protective ring 113,

[0045] Housing 12,

[0046] Left side wall 121, right side wall 122, first indoor air inlet 1211,

[0047] Front panel 123, air outlet 1231,

[0048] Fresh air inlet 124, fresh air outlet 125, sewage inlet 126, sewage outlet 127,

[0049] Rear panel 128, second indoor air inlet 1281,

[0050] Air duct component 2, main air duct 21, auxiliary air duct 22, main fan 23, air duct housing 24, air duct opening 241, air outlet grille 25,

[0051] Ventilation system 3, fresh air fan 31, sewage fan 32,

[0052] Indoor heat exchanger 4,

[0053] First drive assembly 5,

[0054] Second drive assembly 6, motor 61, gear 62, gear ring 63. Detailed implementation manners

[0055] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the 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 by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0056] The air conditioner indoor unit 100, the air conditioner, and the control method of the air conditioner indoor unit 100 according to the embodiments of the present invention will be described below with reference to the drawings.

[0057] As Figures 1 - 2 shown, the air conditioner indoor unit 100 according to the embodiments of the present invention may include a housing 1, an air duct component 2, and an indoor heat exchanger 4.

[0058] Specifically, referring to Figures 1 - 2 , an air outlet 1231, a first indoor air inlet 1211, and a fresh air inlet 124 are provided on the housing 1; the air duct component 2 is arranged in the housing 1, and the air duct component 2 and the housing 1 cooperate to define a main air duct 21 and an auxiliary air duct 22 which are arranged at intervals. The air outlet end of the auxiliary air duct 22 is arranged adjacent to the air outlet end of the main air duct 21. The main air duct 21 is respectively communicated with the air outlet 1231 and the first indoor air inlet 1211, the auxiliary air duct 22 is communicated with the air outlet 1231, and the air duct component 2 includes a main fan 23, and the main fan 23 is arranged in the main air duct 21; the indoor heat exchanger 4 is arranged in the housing 1 and is located between the first indoor air inlet 1211 and the main fan 23.

[0059] It can be understood that the main fan 23 is arranged in the main air duct 21 and can drive the air flow to flow from the first indoor air inlet 1211 to the air outlet 1231, and then flow into the room. During the process of the air flow flowing from the first indoor air inlet 1211 to the air outlet 1231, it passes through the indoor heat exchanger 4 and exchanges heat with the indoor heat exchanger 4, so that the temperature of the air flow decreases or increases, and then the air flow flowing into the room can be cooled or heated. Since the air outlet end of the auxiliary air duct 22 is arranged adjacent to the air outlet end of the main air duct 21, when the main air duct 21 blows air at the air outlet end, the air flow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22. Thus, the air volume of the air outlet 1231 can be increased, and the cooling or heating effect of the air conditioner indoor unit 100 can be better.

[0060] Among them, in combination with Figure 3 , the air conditioner indoor unit 100 may further include a fresh air fan 31. The fresh air fan 31 is arranged in the casing 1. The air inlet end of the fresh air fan 31 is communicated with the fresh air inlet 124, and the air outlet end of the fresh air fan 31 is communicated with the auxiliary air duct 22 to send air toward the auxiliary air duct 22. The fresh air fan 31 can drive the outdoor fresh air to flow from the fresh air inlet 124 to the auxiliary air duct 22. When the air outlet end of the main air duct 21 conveys cold air or hot air into the room, the fresh air in the auxiliary air duct 22 can be carried out. Thus, the air conditioner indoor unit 100 can introduce outdoor fresh air during both cooling and heating, making the indoor air fresher and improving the use comfort of the air conditioner indoor unit 100.

[0061] It should be noted that the main fan 23 can work independently. At this time, the cooling air or heating air flows into the room through the main air duct 21 and the auxiliary air duct 22; the fresh air fan 31 can also work independently. At this time, the outdoor fresh air flows into the room through the auxiliary air duct 22; the main fan 23 and the fresh air fan 31 can also work simultaneously. At this time, the cooling air or heating air flows into the room through the main air duct 21, and the outdoor fresh air flows into the room through the auxiliary air duct 22. In addition, when the main fan 23 and the fresh air fan 31 work simultaneously, the compressor that controls the refrigerant flow in the indoor heat exchanger 4 can not work. At this time, while the main fan 23 drives the normal temperature air flow to blow out from the main air duct 21, it drives the outdoor fresh air in the auxiliary air duct 22 to blow out.

[0062] In the related art, most of the air ducts of the air conditioner indoor unit are one. The indoor normal temperature air is sucked from the air inlet by the air wheel, and after heat exchange through the heat exchanger, the heat exchange air is sent out from the air outlet. This heat exchange air enters the indoor space and exchanges heat with the indoor normal temperature air, so as to achieve the effect of reducing or increasing the indoor temperature. The air volume of the above-mentioned air conditioner indoor unit is small, the heat exchange effect is poor, and fresh air cannot be introduced into the room during cooling or heating.

[0063] The air conditioner indoor unit 100 according to an embodiment of the present invention defines a main air duct 21 and an auxiliary air duct 22 which are arranged at intervals through the cooperation of the air duct component 2 and the housing 1. The air outlet end of the auxiliary air duct 22 is arranged adjacent to the air outlet end of the main air duct 21. When the air blows out from the air outlet end of the main air duct 21, the air flow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22. Thus, the air volume of the air outlet 1231 can be increased, making the refrigeration or heating effect of the air conditioner indoor unit 100 better. Moreover, the air outlet end of the fresh air fan 31 is communicated with the auxiliary air duct 22 to send air towards the auxiliary air duct 22, so that the fresh air fan 31 can drive the outdoor fresh air to flow from the fresh air inlet 124 to the auxiliary air duct 22. When the air outlet end of the main air duct 21 sends cold air or hot air into the room, the fresh air in the auxiliary air duct 22 can be carried out. Thus, the air conditioner indoor unit 100 can introduce outdoor fresh air both when refrigerating or heating, making the indoor air fresher and improving the use comfort of the air conditioner indoor unit 100.

[0064] In some embodiments of the present invention, as Figures 2 - 3 shown, the air duct component 2 includes an air duct housing 24 having an air duct opening 241. The main fan 23 is arranged in the air duct housing 24. The main fan 23 and the inner wall of the air duct housing 24 define the main air duct 21. The auxiliary air duct 22 is defined between the outer wall of the air duct housing 24 and the inner wall of the housing 1. It can be understood that arranging the main fan 23 in the air duct housing 24 can facilitate defining the main air duct 21 together with the inner wall of the air duct housing 24. The main fan 23 is arranged in the main air duct 21 to drive the air flow towards the main air duct 21, and then flows out of the air duct housing 24 from the air duct opening 241 of the main air duct 21, towards the air outlet 1231 of the housing 1 and into the room. When the air flows out from the air duct opening 241, a negative pressure is formed at the air duct opening 241. Thus, the air flow in the auxiliary air duct 22 will flow towards the air duct opening 241 and then flow into the room together with the air flow in the main air duct 21. In addition, the outer wall of the air duct housing 24 and the inner wall of the housing 1 can facilitate defining the auxiliary air duct 22.

[0065] According to some embodiments of the present invention, the air duct housing 24 is rotatable relative to the housing 1. Since the air duct housing 24 has an air duct opening 241, the air duct opening 241 can rotate in the housing 1 along with the air duct housing 24. Thus, the air duct housing 24 can have different air outlet directions when rotating to different positions. Furthermore, the air duct housing 24 being rotatable relative to the housing 1 can facilitate adjusting the air outlet direction of the air conditioner indoor unit 100 to meet the air use requirements of different users.

[0066] Combined with Figure 3, in some embodiments of the present invention, the fresh air fan 31 is located below the air duct component 2, which can facilitate the arrangement of the fresh air fan 31 in the air conditioner indoor unit 100. The air outlet end of the fresh air fan 31 faces upward to send air toward the auxiliary air duct 22. It can be understood that the upward-facing air outlet end of the fresh air fan 31 can facilitate the flow of outdoor fresh air into the auxiliary air duct 22, shorten the flow path of the outdoor fresh air, and save the driving energy of the fresh air fan 31.

[0067] As Figures 1 - 2 shown, according to some embodiments of the present invention, a first indoor air inlet 1211 is provided on the left side wall 121 and / or the right side wall 122 of the housing 1. It can be understood that the first indoor air inlet 1211 can be provided on the left side wall 121 of the housing 1; the first indoor air inlet 1211 can also be provided on the right side wall 122 of the housing 1; the first indoor air inlet 1211 can also be provided on both the left side wall 121 and the right side wall 122 of the housing 1. Thus, the indoor air can enter the housing 1 from the first indoor air inlet 1211 to exchange heat with the indoor heat exchanger 4, and the heated or cooled air flow blows out from the air outlet 1231 to the room to cool or heat the room. Providing the first indoor air inlet 1211 on both the left side wall 121 and the right side wall 122 of the housing 1 can increase the area of the first indoor air inlet 1211, increase the air intake volume, and further provide more heat exchange air flow for the air conditioner indoor unit 100, improving the refrigeration or heating performance.

[0068] In some embodiments of the present invention, the main fan 23 is a centrifugal fan. The characteristic of a centrifugal fan is that the air flow can enter from the axial direction of the centrifugal fan and blow out from the radial direction of the centrifugal fan. Using a centrifugal fan for the main fan 23 can facilitate air intake from one side or both sides of the axial direction of the main fan 23, and then blow out from the radial direction of the main fan 23, that is, from the air duct opening 241.

[0069] As Figure 4 shown, according to some embodiments of the present invention, a second indoor air inlet 1281 is provided on the housing 1, and the second indoor air inlet 1281 is in communication with the auxiliary air duct 22. Among them, the indoor air can also enter the auxiliary air duct 22 from the second indoor air inlet 1281. Thus, the air volume in the auxiliary air duct 22 is increased. When the air flows out from the air outlet end of the main air duct 21, the air flow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22. Thus, the air volume flowing out from the air outlet 1231 can be increased, making the refrigeration or heating effect of the air conditioner indoor unit 100 better.

[0070] In some embodiments of the present invention, a first switch door is provided on the housing 1. The first switch door is used to open or close the second indoor air inlet 1281. Thus, when the first switch door opens the second indoor air inlet 1281, air flow can flow from the second indoor air inlet 1281 to the auxiliary air duct 22; when the first switch door closes the second indoor air inlet 1281, the first switch door can block the second indoor air inlet 1281, thereby protecting the components inside the housing 1 and preventing dust and the like from entering the housing 1 and damaging the components inside the housing 1; moreover, the first switch door can also prevent users from reaching their hands into the housing 1 through the second indoor air inlet 1281 and causing danger.

[0071] According to some embodiments of the present invention, as Figures 1 - 3 shown, there can be multiple main air ducts 21. The outlet end of each main air duct 21 corresponds to the outlet end of an auxiliary air duct 22. It can be understood that multiple main air ducts 21 can increase the air intake and air output, thereby improving the cooling or heating capacity of the air conditioner indoor unit 100; in addition, multiple main air ducts 21 can drive the air output of multiple auxiliary air ducts 22. When the fresh air fan 31 does not work, the air output of multiple auxiliary air ducts 22 can further increase the air output and further improve the cooling or heating effect of the air conditioner indoor unit 100; when the fresh air fan 31 works, the air output of multiple auxiliary air ducts 22 can increase the amount of outdoor fresh air entering the room, making the indoor air fresher.

[0072] In some embodiments of the present invention, referring to Figures 1 - 2 , the housing 1 can include a main body frame 11 and a housing 12. The main body frame 11 is provided inside the housing 12. The air outlet 1231, the first indoor air inlet 1211, and the fresh air inlet 124 are provided on the housing 12. The air duct component 2 and the fresh air fan 31 are both installed on the main body frame 11. It can be understood that the main body frame 11 can be used to support the air duct component 2 and the fresh air fan 31, and the housing 12 can surround the main body frame 11. Thus, the housing 12 can protect the main body frame 11, support the air duct component 2 and the fresh air fan 31. Moreover, the housing 12 can facilitate the setting of the air outlet 1231, the first indoor air inlet 1211, and the fresh air inlet 124, and provide a setting environment for the air outlet 1231, the first indoor air inlet 1211, and the fresh air inlet 124.

[0073] According to some embodiments of the present invention, as Figures 9 - 10As shown in the figure, the main body frame 11 includes a skeleton 111 and a fixing frame 112. The skeleton 111 is provided with a plurality of first installation cavities 1111. One side of each first installation cavity 1111 is provided with an installation opening 1112. The air duct housing 24 passes through the installation opening 1112 and is rotatably installed in the first installation cavity 1111. A fixing frame 112 is fixed at each installation opening 1112, and a part of the second driving assembly 6 is fixed on the fixing frame 112. Among them, the first installation cavity 1111 can accommodate the air duct housing 24, which is convenient for the arrangement and rotation of the air duct housing 24. The installation opening 1112 is convenient for the installation of the air duct housing 24. The fixing frame 112 arranged at the installation opening 1112 can limit the air duct housing 24 to prevent the air duct housing 24 from falling off from the installation opening 1112. At the same time, the fixing frame 112 can also be used to support a part of the second driving assembly 6.

[0074] Combined Figure 10 , in some embodiments of the present invention, the main body frame 11 is further provided with a second installation cavity 1113. The ventilation system 3 can be located in the second installation cavity 1113. The second installation cavity 1113 is located below the plurality of first installation cavities 1111. The housing 12 is further provided with a sewage inlet 126 and a sewage outlet 127. The sewage fan 32 is located between the sewage inlet 126 and the sewage outlet 127. Among them, the second installation cavity 1113 can accommodate the ventilation system 3, including the sewage fan 32 and the fresh air fan 31. The second installation cavity 1113 located below the plurality of first installation cavities 1111 is convenient for the arrangement of the sewage fan 32 and the fresh air fan 31 in the air conditioner indoor unit 100, and is also convenient for the air outlet end of the fresh air fan 31 to send air toward the air inlet side or the air outlet side of the indoor heat exchanger 4, thereby shortening the flow path of the outdoor fresh air and saving the driving energy of the fresh air fan 31.

[0075] According to some embodiments of the present invention, referring to Figure 2 and Figure 10 , the casing 1 may include a front panel 123. A plurality of air outlets 1231 are provided on the front panel 123 at intervals in the up and down directions. The left side wall 121 and the right side wall 122 of the casing 1 are respectively provided with a first indoor air inlet 1211; the air duct component 2 is arranged in the casing 1. The air duct component 2 includes a plurality of air duct housings 24 having air duct openings 241 and a plurality of main fans 23. The plurality of air duct housings 24 are respectively rotatably arranged in the casing 1. The plurality of air duct housings 24 are arranged in one-to-one correspondence with the plurality of air outlets 1231. The plurality of main fans 23 are respectively and rotatably installed in the plurality of air duct housings 24; a plurality of first driving assemblies 5 are arranged in one-to-one correspondence with the plurality of main fans 23 to drive the plurality of main fans 23 to rotate independently; a plurality of second driving assemblies 6 are respectively and cooperated with the plurality of air duct housings 24 in one-to-one correspondence to drive the plurality of air duct housings 24 to rotate; the indoor heat exchanger 4 is arranged in the casing 1 and is located between the air duct component 2 and the first indoor air inlet 1211.

[0076] It can be understood that the first driving component 5 can drive the main blower 23 to rotate. The rotation of the main blower 23 can drive the air flow to flow from the first indoor air inlet 1211 to the air duct component 2. During this period, the air flow exchanges heat with the indoor heat exchanger 4, so that the air flow is cooled or heated and then enters the air duct component 2, and then flows from the air duct opening 241 to the air outlet 1231, and then flows into the room, so as to achieve the purpose of cooling or heating the room. In addition, since the air duct housing 24 has an air duct opening 241, the air duct opening 241 can rotate with the air duct housing 24 in the housing 1. Therefore, when the air duct housing 24 rotates to different positions, it can have different air outlet directions. Furthermore, the rotatability of the air duct housing 24 relative to the housing 1 can facilitate the adjustment of the air outlet direction of the air conditioner indoor unit 100 to meet the air use requirements of different users. The second driving component 6 can drive the air duct housing 24 to rotate, thereby facilitating the rotation of the air duct housing 24.

[0077] Among them, the left side wall 121 and the right side wall 122 of the housing 1 can be respectively provided with the first indoor air inlet 1211, which can increase the area of the first indoor air inlet 1211 and the air intake volume, and further provide more heat exchange air flow for the air conditioner indoor unit 100, improving the cooling or heating performance. Of course, the first indoor air inlet 1211 can also be provided only on the left side wall 121 of the housing 1; or the first indoor air inlet 1211 can be provided only on the right side wall 122 of the housing 1. Here, there are no excessive restrictions on the setting position and the number of the first indoor air inlets 1211. As long as the first indoor air inlet 1211 is provided on the left side wall 121 and / or the right side wall 122, it falls within the protection scope of the present invention.

[0078] Among them, the front surface of the housing 1 is provided with a plurality of air outlets 1231, which can increase the air outlet volume, and further provide more air flow (including cold air flow, hot air flow or fresh air flow) for the room. The plurality of air outlets 1231 are arranged at intervals in the up-down direction on the front surface of the housing 1, which is convenient for the arrangement of the plurality of air outlets 1231. The plurality of air outlets 1231 can correspond to a plurality of air duct housings 24 and a plurality of main blowers 23 to direct the air flow to different air outlets 1231 respectively. The plurality of first driving components 5 are arranged in one-to-one correspondence with the plurality of main blowers 23 to drive the plurality of main blowers 23 to rotate independently. The plurality of second driving components 6 are respectively in one-to-one cooperation with the plurality of air duct housings 24 to drive the plurality of air duct housings 24 to rotate independently. Therefore, the main blower 23 can rotate independently; the air duct housing 24 can also rotate independently; the main blower 23 and the air duct housing 24 can also rotate. In addition, the plurality of main blowers 23 can rotate independently of each other, thus realizing the situation where some main blowers 23 work and some main blowers 23 do not work; the plurality of air duct housings 24 can rotate independently of each other, thus realizing the situation where some air duct housings 24 work and some air duct housings 24 do not work. Thus, the air outlet volume can be adjusted according to user needs.

[0079] Furthermore, as Figure 2 shown, the housing 1 may further include a rear back plate 128. The front panel 123 and the rear back plate 128 are disposed at opposite ends of the main body frame 11. A second indoor air inlet 1281 is formed on the rear back plate 128, and the rear back plate 128 can provide a setting environment for the second indoor air inlet 1281. Thus, the indoor air can also enter the auxiliary air duct 22 from the second indoor air inlet 1281. Thereby, the air volume in the auxiliary air duct 22 is increased. When the air flows out from the air outlet end of the main air duct 21, the air flow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22. Thereby, the air volume of the air outlet 1231 can be increased, making the refrigeration or heating effect of the air conditioner indoor unit 100 better.

[0080] According to some embodiments of the present invention, as Figure 2 shown, there may be two indoor heat exchangers 4. The two indoor heat exchangers 4 are respectively disposed on the left and right sides of the air duct component 2. Thus, an indoor heat exchanger 4 can be provided at each of the first indoor air inlets 1211 on the left side wall 121 and the right side wall 122 of the housing 1, thereby increasing the heat exchange area, improving the refrigeration or heating capacity, enabling more cold air flow or hot air flow to enter the room, and thus improving the refrigeration or heating performance of the air conditioner indoor unit 100.

[0081] In some embodiments of the present invention, as Figure 10 shown, each second driving assembly 6 includes a motor 61, a gear 62, and an annular gear ring 63. The motor 61 is disposed on the housing 1. The gear 62 is engaged with the motor 61 to be driven by the motor 61 to rotate. The gear ring 63 is fixed on the corresponding air duct housing 24, and the gear ring 63 is engaged with the gear 62. It can be understood that the housing 1 can support the motor 61. The motor 61 can drive the gear 62 to rotate. The gear 62 drives the gear ring 63 to rotate by meshing with the gear ring 63. Thus, the gear ring 63 can drive the air duct housing 24 to rotate.

[0082] Referring to Figure 10 , according to some embodiments of the present invention, the gear ring 63 can be an internal gear ring 63. The internal gear ring 63 enables the gear 62 to be located inside the gear ring 63 when installed, thereby reducing the overall volume of the gear ring 63 and the gear 62, further reducing the volume of the second driving assembly 6, and thus saving internal space for the air conditioner indoor unit 100 and reducing the structural volume of the air conditioner indoor unit 100.

[0083] Combined with Figure 10, in some embodiments of the present invention, the air conditioner indoor unit 100 further includes a plurality of protective rings 113. The plurality of protective rings 113 are fixed on the casing 1, and at least one axial end of each air duct component 2 is in clearance fit with the protective ring 113. Thus, the air duct component 2 can rotate relative to the protective ring 113, and the protective ring 113 can provide support and a rotating environment for the air duct component 2.

[0084] According to some embodiments of the present invention, as Figure 10 shown, the air conditioner indoor unit 100 further includes an air outlet grille 25. An air outlet grille 25 is provided at the air duct opening 241 of each air duct housing 24. Thus, while facilitating air outlet, the air outlet grille 25 can protect the components inside the air duct housing 24 and prevent dust and the like from entering the air duct housing 24 and damaging the components inside the air duct housing 24, such as the main motor 61, etc.; moreover, the air outlet grille 25 can also prevent users from reaching their hands into the air duct housing 24 through the air duct opening 241 and touching the main motor 61, thus avoiding danger.

[0085] According to some embodiments of the present invention, referring to Figures 5 - 6 , the casing 1 is further provided with a sewage inlet 126, a sewage outlet 127, and a fresh air outlet 125; a ventilation system 3 is arranged inside the casing 1. The ventilation system 3 includes a sewage fan 32 and a fresh air fan 31. The air inlet end of the sewage fan 32 is communicated with the sewage inlet 126, and the air outlet end of the sewage fan 32 is communicated with the sewage outlet 127. The air inlet end of the fresh air fan 31 is communicated with the fresh air inlet 124, and the air outlet end of the fresh air fan 31 is communicated with the fresh air outlet 125.

[0086] Among them, the sewage fan 32 can drive the dirty air flow to flow from the sewage inlet 126 to the air inlet end of the sewage fan 32, then to the air outlet end of the sewage fan 32, and then to the sewage outlet 127; the fresh air fan 31 can drive the air flow to flow from the fresh air inlet 124 to the air inlet end of the fresh air fan 31, then to the air outlet end of the fresh air fan 31, and then to the fresh air outlet 125. As an achievable way, both the sewage outlet 127 and the fresh air inlet 124 can be communicated with the outside through a connecting pipe. Thus, the dirty air flow can be discharged to the outside from the sewage outlet 127, and the fresh air inlet 124 can introduce the outdoor fresh air into the air conditioner indoor unit 100 and then blow it into the room. Thus, the indoor air can be purified.

[0087] Here, the sewage exhaust fan 32 can work independently. Thus, the dirty air in the room can be discharged outdoors, making the air in the room clean and fresh. The fresh air fan 31 can also work independently. Thus, the fresh outdoor air can be introduced into the room, also making the air in the room clean and fresh. Of course, the sewage exhaust fan 32 and the fresh air fan 31 can also work simultaneously. While the sewage exhaust fan 32 discharges the dirty air in the room outdoors, the fresh air fan 31 introduces the fresh outdoor air into the room. Thus, the ability to clean the indoor air is stronger, making the indoor air fresher.

[0088] In some embodiments of the present invention, the sewage exhaust fan 32 and the fresh air fan 31 can be configured to start and stop synchronously. Thus, while the sewage exhaust fan 32 discharges the dirty air in the room outdoors, the fresh air fan 31 introduces the fresh outdoor air into the room. Thus, the ability to clean the indoor air is stronger, making the indoor air fresher.

[0089] According to some embodiments of the present invention, in combination with Figures 7 - 8 , the sewage exhaust fan 32 and the fresh air fan 31 can share a single motor 61. Thus, it is also possible to achieve that while the sewage exhaust fan 32 discharges the dirty air in the room outdoors, the fresh air fan 31 introduces the fresh outdoor air into the room. Thus, the ability to clean the indoor air is stronger, making the indoor air fresher. Moreover, sharing the motor 61 for sewage discharge and fresh air introduction can also save one motor 61, thereby reducing the production cost of the air conditioner indoor unit 100. At the same time, it also saves the electric energy when the ventilation system 3 is working.

[0090] An air conditioner according to an embodiment of the present invention includes the air conditioner indoor unit 100 as described above.

[0091] An air conditioner according to an embodiment of the present invention defines a main air duct 21 and an auxiliary air duct 22 arranged at intervals through the cooperation of the air duct component 2 and the casing 1. The air outlet end of the auxiliary air duct 22 is arranged adjacent to the air outlet end of the main air duct 21. When the air outlet end of the main air duct 21 discharges air, the air flow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22. Thus, the air volume discharged from the air outlet 1231 can be increased, making the cooling or heating effect of the air conditioner indoor unit 100 better. Moreover, the air outlet end of the fresh air fan 31 is communicated with the auxiliary air duct 22 to send air toward the auxiliary air duct 22, so that the fresh air fan 31 can drive the fresh outdoor air to flow from the fresh air inlet 124 to the auxiliary air duct 22. When the air outlet end of the main air duct 21 conveys cold air or hot air into the room, the fresh air in the auxiliary air duct 22 can be carried out. Thus, the air conditioner indoor unit 100 can introduce fresh outdoor air during both cooling and heating, making the indoor air fresher and improving the comfort of using the air conditioner indoor unit 100.

[0092] As Figure 11As shown, a control method for an air conditioner indoor unit 100 according to an embodiment of the present invention, the air conditioner indoor unit 100 being the air conditioner indoor unit 100 as described above, the control method includes:

[0093] Obtain the operating mode of the air conditioner indoor unit 100;

[0094] Adjust the orientation of the air duct opening 241 of the air duct housing 24 according to the operating mode of the air conditioner indoor unit 100;

[0095] Determine whether to adjust the air outlet angle;

[0096] If adjustment is required, adjust the orientation of the air duct opening 241 of the air duct housing 24.

[0097] It can be understood that the air conditioner indoor unit 100 can include multiple operating modes. For example, the operating modes can be a cooling mode, a heating mode, a dehumidifying mode, and a ventilation mode. According to the selected operating mode, the orientation of the air duct opening 241 can be adjusted. Specifically, the orientation of the air duct opening 241 can be adjusted by rotating the air duct housing 24. When the orientation of the air duct opening 241 is different, the air outlet direction is different. In some specific examples, in the cooling mode, the air duct opening 241 can default to blow upward at 45 degrees; in the heating mode, the air duct opening 241 can default to blow downward at 45 degrees; in the dehumidifying mode, the air duct opening 241 can default to blow upward at 45 degrees; in the ventilation mode, the air duct opening 241 can default to blow at a horizontal angle, and the horizontal angle is the angle parallel to the placement of the air conditioner indoor unit 100. Of course, the cooling mode, heating mode, dehumidifying mode, and ventilation mode can also have other default angles, which are not overly restricted here. The air conditioner indoor unit 100 can determine whether the air outlet angle needs to be adjusted. If so, rotate the air duct housing 24, and then the orientation of the air duct opening 241 changes, so that the air outlet direction can be changed; if not, the air duct housing 24 remains in its original position, the orientation of the air duct opening 241 remains unchanged, and the air outlet direction remains unchanged.

[0098] According to the control method of the air conditioner indoor unit 100 according to the embodiment of the present invention, it is convenient to adjust the orientation of the air duct opening 241 and the air outlet angle, so as to meet the diverse air outlet requirements of users.

[0099] In some embodiments of the present invention, the air conditioner indoor unit 100 has an automatic adjustment mode and a manual adjustment mode. In the automatic adjustment mode, the air duct housing 24 rotates reciprocally. In the manual adjustment mode, the air duct housing 24 is rotated by a momentary control. If the automatic adjustment mode is selected, the air duct housing 24 rotates reciprocally. At this time, the air duct opening 241 can reciprocally swing the air outlet angle freely, for example, the air duct opening 241 can swing the air outlet angle freely within a range of 270 degrees. If the manual adjustment mode is selected, different air duct openings 241 can be rotated by a momentary control respectively. In some specific examples, the automatic adjustment mode can also be entered after the manual adjustment mode is selected. One-key reset can be selected in both the manual adjustment mode and the automatic adjustment mode. After resetting, it is adjusted to the corresponding default angle according to the current operating mode. Further, the control method of the air conditioner indoor unit 100 can repeat the control or stop the control of all operating mode angles at any time. Furthermore, the control method of the air conditioner indoor unit 100 further includes turning on the air conditioner indoor unit and turning off the air conditioner indoor unit. After the air conditioner indoor unit is turned off, multiple air duct openings 241 move downward synchronously by 90 degrees to enter the shutdown state and stop working.

[0100] In the description of the present invention, 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0101] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0102] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0103] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner indoor unit, characterized in that, Comprising: A casing, on which there are an air outlet, a first indoor air inlet, and a fresh air inlet; An air duct component, which is arranged inside the casing. The air duct component and the casing cooperate to define a main air duct and an auxiliary air duct arranged at intervals. The air outlet end of the auxiliary air duct is arranged adjacent to the air outlet end of the main air duct. The main air duct is respectively communicated with the air outlet and the first indoor air inlet, and the auxiliary air duct is communicated with the air outlet. The air duct component includes a main fan, and the main fan is a centrifugal fan and is arranged in the main air duct; A fresh air fan, which is arranged inside the casing. The air inlet end of the fresh air fan is communicated with the fresh air inlet, and the air outlet end of the fresh air fan is communicated with the auxiliary air duct to supply air towards the auxiliary air duct; An indoor heat exchanger, which is arranged inside the casing and is located between the first indoor air inlet and the main fan; The air duct component includes an air duct housing with an air duct opening. The air duct opening is arranged on the radial surface of the air duct housing. The main fan is arranged inside the air duct housing. The air duct housing is rotatable relative to the casing. The main air duct is defined by the main fan and the inner wall of the air duct housing, and the auxiliary air duct is defined between the outer wall of the air duct housing and the inner wall of the casing; The front surface of the casing is provided with the air outlet, and the first indoor air inlet is arranged on the left side wall and / or the right side wall of the casing.

2. The air conditioner indoor unit according to claim 1, characterized in that, The fresh air fan is located below the air duct component, and the air outlet end of the fresh air fan faces upward to supply air towards the auxiliary air duct.

3. The indoor air conditioner according to claim 1, characterized in that, The casing is provided with a second indoor air inlet, and the second indoor air inlet is communicated with the auxiliary air duct.

4. The air conditioner indoor unit according to claim 3, characterized in that, The casing is provided with a first switch door, and the first switch door is used to open or close the second indoor air inlet.

5. The indoor air conditioner according to claim 1, characterized in that, There are multiple main air ducts, and the air outlet end of each main air duct is correspondingly provided with the air outlet end of an auxiliary air duct.

6. The air conditioner indoor unit according to any one of claims 1-5, characterized in that, The casing includes a main body frame and a housing. The main body frame is arranged inside the housing. The air outlet, the first indoor air inlet, and the fresh air inlet are arranged on the housing. The air duct component and the fresh air fan are both installed on the main body frame.

7. An air conditioner, characterized in that, Including the air conditioner indoor unit according to any one of claims 1-6.

8. A control method for an air conditioner indoor unit, characterized in that, The air conditioner indoor unit is the air conditioner indoor unit according to any one of claims 1-6, and the control method includes: Obtaining the operating mode of the air conditioner indoor unit; Adjusting the orientation of the air duct opening of the air duct housing according to the operating mode of the air conditioner indoor unit; Determining whether to adjust the air outlet angle; If adjustment is required, adjusting the orientation of the air duct opening of the air duct housing.

9. The control method of the air conditioner indoor unit according to claim 8, characterized in that, The air conditioner indoor unit has an automatic adjustment mode and a manual adjustment mode. In the automatic adjustment mode, the air duct housing rotates reciprocally. In the manual adjustment mode, the air duct housing is controlled to rotate by a single click.

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