Air conditioner indoor unit and air conditioner

Abstract

This invention discloses an indoor air conditioning unit and an air conditioner. The indoor air conditioning unit includes a casing, a duct component, an indoor heat exchanger, and a ventilation system. The casing has a first indoor air inlet, an air outlet, a wastewater inlet, a wastewater outlet, a fresh air inlet, and a fresh air outlet. The duct component includes a duct housing and a main fan. The duct housing is rotatably disposed within the casing, and the main fan is rotatably disposed within the duct housing. The internal space of the duct housing is connected to the first indoor air inlet and the air outlet, respectively. The ventilation system is disposed within the casing and includes a wastewater fan and a fresh air fan. The inlet end of the wastewater fan is connected to the wastewater inlet, and the outlet end of the wastewater fan is connected to the wastewater outlet. The inlet end of the fresh air fan is connected to the fresh air inlet, and the outlet end of the fresh air fan is connected to the fresh air outlet. The indoor air conditioning unit of this invention can not only adjust the air outlet direction of the duct housing to meet different user air outlet needs, but also purify indoor air.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] In the field of air conditioning technology, most indoor air conditioning units have their air duct housings fixed to the main unit casing. When airflow exits from the duct housing, the air outlet angle is adjusted by louvers, resulting in a limited method for adjusting the airflow direction. Furthermore, these indoor air conditioning units lack a ventilation system, leading to poor ventilation performance. Summary of the Invention

[0003] This invention provides an indoor air conditioning unit, which has the advantages of easy adjustment of air outlet direction and air purification.

[0004] The present invention provides an air conditioner having an indoor unit as described above.

[0005] An indoor air conditioning unit according to an embodiment of the present invention includes: a housing, wherein the housing is provided with a first indoor air inlet, an air outlet, a sewage inlet, a sewage outlet, a fresh air inlet, and a fresh air outlet; a duct component, wherein the duct component is disposed within the housing, the duct component includes a duct housing and a main fan, the duct housing is rotatably disposed within the housing, the main fan is rotatably disposed within the duct housing, and the internal space of the duct housing is respectively connected to the first indoor air inlet and the air outlet; an indoor heat exchanger, wherein the indoor heat exchanger is disposed between the duct component and the first indoor air inlet; and a ventilation system, wherein the ventilation system is disposed within the housing, the ventilation system includes a sewage exhaust fan and a fresh air fan, the air inlet of the sewage exhaust fan is connected to the sewage inlet, the air outlet of the sewage exhaust fan is connected to the sewage outlet, the air inlet of the fresh air fan is connected to the fresh air inlet, and the air outlet of the fresh air fan is connected to the fresh air outlet.

[0006] According to an embodiment of the present invention, the indoor unit of an air conditioner has a duct housing rotatably disposed within a casing, allowing the duct housing to be positioned at different locations within the casing. These different positions allow airflow to exit the internal space of the duct housing from different angles. Therefore, the rotation of the duct housing within the casing adjusts the airflow direction, thereby meeting different user airflow needs. The indoor unit of the present invention also includes a ventilation system comprising an exhaust fan and a fresh air fan. The exhaust fan drives polluted airflow from the exhaust outlet to the outside, while the fresh air fan drives fresh outdoor air into the room, thereby purifying the indoor air.

[0007] In some embodiments, the exhaust fan and the fresh air fan are configured to start and stop synchronously.

[0008] In some embodiments, the sewage exhaust fan and the fresh air fan share a single motor.

[0009] In some embodiments, the fresh air outlet and the air outlet are the same ventilation opening, and the air outlet of the fresh air fan is connected to the air duct housing.

[0010] In some embodiments, the air outlet of the fresh air fan is directed toward the air inlet or air outlet side of the indoor heat exchanger.

[0011] In some embodiments, the main fan and the inner wall of the duct housing define a main duct, an auxiliary duct is defined between the outer wall of the duct housing and the inner wall of the housing, the outlet of the auxiliary duct is disposed adjacent to the outlet of the main duct, the auxiliary duct is connected to the fresh air outlet, and the outlet of the fresh air fan is connected to the auxiliary duct to deliver air toward the auxiliary duct.

[0012] In some embodiments, there are multiple main air ducts, and an auxiliary air duct is provided on the outer side of the air outlet end of each main air duct.

[0013] In some embodiments, the ventilation system is located below the duct component.

[0014] In some embodiments, the housing includes a main frame and a shell, the main frame being disposed within the shell, the first indoor air inlet, the air outlet, the sewage inlet, the sewage outlet, the fresh air inlet, and the fresh air outlet being disposed on the shell, and the duct components and the ventilation system being mounted on the main frame.

[0015] An air conditioner according to an embodiment of the present invention includes an indoor unit as described above.

[0016] According to an embodiment of the air conditioner of the present invention, the duct housing is rotatably disposed within the casing, allowing the duct housing to be positioned at different locations within the casing. These different positions allow airflow to exit the internal space of the duct housing from different angles. Therefore, the rotation of the duct housing within the casing adjusts the airflow direction, thereby meeting different user airflow needs. The indoor unit of the air conditioner of the present invention also includes a ventilation system, comprising an exhaust fan and a fresh air fan. The exhaust fan drives polluted airflow from the exhaust outlet to the outside, while the fresh air fan drives fresh outdoor air into the room, thereby purifying the indoor air.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of an air conditioner indoor unit according to an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of an indoor air conditioning unit according to an embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of an indoor air conditioning unit according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention;

[0024] Figure 6 This is a partial structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0025] Figure 7 This is a partial structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0026] Figure 8 This is a partial structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0027] Figure 9 This is a partial structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention;

[0028] Figure 10 This is a partial exploded view of an indoor air conditioning unit according to an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention;

[0030] Figure 12 This is a cross-sectional view of an indoor air conditioning unit according to an embodiment of the present invention;

[0031] Figure 13 This is a cross-sectional view of the indoor unit of an air conditioner according to an embodiment of the present invention.

[0032] Figure label:

[0033] Air conditioner indoor unit 100,

[0034] Casing 1,

[0035] Main framework 11,

[0036] Frame 111, first mounting cavity 1111, mounting port 1112, second mounting cavity 1113.

[0037] Fixture 112, Protective ring 113

[0038] Casing 12,

[0039] Left wall 121, right wall 122, first indoor air inlet 1211,

[0040] Front panel 123, air vent 1231,

[0041] Fresh air inlet 124, fresh air outlet 125, sewage inlet 126, sewage outlet 127.

[0042] Rear panel 128, second indoor air inlet 1281,

[0043] 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.

[0044] Ventilation system 3, fresh air fan 31, exhaust fan 32

[0045] Indoor heat exchanger 4,

[0046] First drive component 5,

[0047] The second drive component 6 includes a motor 61, a gear 62, and a gear ring 63. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0049] The following description, with reference to the accompanying drawings, describes an indoor air conditioning unit 100 and an air conditioner according to an embodiment of the present invention.

[0050] like Figures 5-6 As shown, the indoor unit 100 of the air conditioner according to an embodiment of the present invention includes a casing 1, an air duct component 2, an indoor heat exchanger 4, and an air exchange system 3.

[0051] Specifically, refer to Figures 5-6The housing 1 is provided with a first indoor air inlet 1211, an air outlet 1231, a sewage inlet 126, a sewage outlet 127, a fresh air inlet 124, and a fresh air outlet 125. The duct component 2 is located inside the housing 1, and includes a duct housing 24 and a main fan 23. The duct housing 24 is rotatably mounted inside the housing 1, and the main fan 23 is rotatably mounted inside the duct housing 24. The internal space of the duct housing 24 is connected to the first indoor air inlet 1211 and the air outlet 1231. Air outlet 1231 is connected; indoor heat exchanger 4 is located between air duct component 2 and first indoor air inlet 1211; ventilation system 3 is located inside casing 1, ventilation system 3 includes exhaust fan 32 and fresh air fan 31, the air inlet end of exhaust fan 32 is connected to exhaust air inlet 126, the air outlet end of exhaust fan 32 is connected to exhaust air outlet 127, the air inlet end of fresh air fan 31 is connected to fresh air inlet 124, and the air outlet end of fresh air fan 31 is connected to fresh air outlet 125.

[0052] Understandably, the housing 1 provides an installation environment for the air duct components 2, the indoor heat exchanger 4, and the ventilation system 3. The main fan 23 rotates inside the air duct housing 24, which can drive the indoor airflow from the first indoor air inlet 1211 to the internal space of the air duct housing 24, and from the internal space of the air duct housing 24 to the air outlet 1231. During the airflow process, it passes through the indoor heat exchanger 4 and exchanges heat with the indoor heat exchanger 4, causing the temperature of the airflow to drop or rise, thereby enabling the airflow flowing into the room to cool or heat. As one feasible approach, the duct housing 24 can have a duct opening 241 through which airflow can exit the duct housing 24. The duct housing 24 is rotatably disposed within the housing 1, allowing it to be located at different positions within the housing 1, thereby causing the duct opening 241 to face different directions. This allows airflow to exit the internal space of the duct housing 24 from different directions. Thus, the rotation of the duct housing 24 within the housing 1 can adjust the airflow direction of the duct housing 24, thereby meeting the different airflow needs of users.

[0053] In addition, the exhaust fan 32 can drive the polluted airflow from the exhaust inlet 126 to the exhaust fan 32 inlet, then to the exhaust fan 32 outlet, and finally to the exhaust outlet 127; the fresh air fan 31 can drive the airflow from the fresh air inlet 124 to the fresh air fan 31 inlet, then to the fresh air fan 31 outlet, and finally to the fresh air outlet 125. As a feasible method, both the exhaust outlet 127 and the fresh air inlet 124 can be connected to the outside via connecting pipes. This allows polluted airflow to be exhausted to the outside from the exhaust outlet 127, while the fresh air inlet 124 can introduce fresh outdoor air into the air conditioning indoor unit 100 and blow it into the room, thereby purifying the indoor air.

[0054] Here, the exhaust fan 32 can work independently, thereby expelling the polluted indoor air to the outside, making the indoor air clean and fresh; the fresh air fan 31 can also work independently, thereby introducing fresh outdoor air into the room, similarly making the indoor air clean and fresh; of course, the exhaust fan 32 and the fresh air fan 31 can also work simultaneously, with the exhaust fan 32 expelling the polluted indoor air to the outside while the fresh air fan 31 introducing fresh outdoor air into the room, thus enhancing the ability to clean the indoor air and making the indoor air fresher.

[0055] In most related technologies, the air duct casing of an air conditioner indoor unit is fixedly mounted on the unit casing. When airflow is blown out from the air duct casing, the air outlet angle is adjusted by louvers. Therefore, the method of adjusting the air outlet direction is limited. Moreover, the aforementioned air conditioner indoor units lack a ventilation system, resulting in poor ventilation performance.

[0056] According to an embodiment of the present invention, the indoor unit 100 of the air conditioner has a duct housing 24 rotatably disposed within the housing 1, allowing the duct housing 24 to be located at different positions within the housing 1. These different positions allow airflow to exit the internal space of the duct housing 24 from different angles. Therefore, the rotation of the duct housing 24 within the housing 1 can adjust the airflow direction of the duct housing 24, thereby meeting different airflow needs of users. The indoor unit 100 of the present invention also includes a ventilation system 3, comprising a waste exhaust fan 32 and a fresh air fan 31. The waste exhaust fan 32 drives polluted airflow from the waste exhaust outlet 127 to the outside, while the fresh air fan 31 drives fresh outdoor air into the room, thereby purifying the indoor air.

[0057] In some embodiments of the present invention, the exhaust fan 32 and the fresh air fan 31 can be configured to start and stop synchronously. Thus, while the exhaust fan 32 exhausts the indoor polluted air to the outside, the fresh air fan 31 introduces the outdoor fresh air into the room, thereby making the indoor air cleaner and fresher.

[0058] According to some embodiments of the present invention, in combination Figure 7 and Figure 13 The exhaust fan 32 and the fresh air fan 31 can share a single motor 61. This allows the exhaust fan 32 to expel stale indoor air to the outside while the fresh air fan 31 introduces fresh outdoor air into the room, resulting in stronger air purification and a fresher indoor environment. Furthermore, sharing a single motor 61 for both exhaust and fresh air intake saves on the cost of the indoor air conditioning unit 100, thus reducing production costs and conserving energy during the operation of the ventilation system 3.

[0059] like Figure 6As shown, in some embodiments of the present invention, the fresh air outlet 125 and the air outlet 1231 are the same vent, and the air outlet end of the fresh air fan 31 is connected to the duct housing 24. It can be understood that having the fresh air outlet 125 and the air outlet 1231 as the same vent can eliminate the need for processing and manufacturing of the fresh air outlet 125, reducing manufacturing costs. The connection between the air outlet end of the fresh air fan 31 and the duct housing 24 allows the fresh air fan 31 to drive outdoor fresh air to flow into the internal space of the duct housing 24, and then from the duct housing 24 to the air outlet 1231, and then into the room.

[0060] According to some embodiments of the present invention, the air outlet of the fresh air fan 31 delivers air towards the air inlet or air outlet side of the indoor heat exchanger 4. Specifically, when the air outlet of the fresh air fan 31 delivers air towards the air inlet side of the indoor heat exchanger 4, the fresh air fan 31 drives outdoor fresh air to flow towards the air inlet side of the indoor heat exchanger 4. At this time, indoor air enters the air inlet side of the indoor heat exchanger 4 from the first indoor air inlet 1211. The outdoor fresh air and indoor air mix together and exchange heat with the indoor heat exchanger 4 before flowing from the duct housing 24 to the air outlet 1231 and being blown into the room. Alternatively, the compressor controlling the refrigerant flow within the indoor heat exchanger 4 may not operate. In this case, room temperature air mixes with outdoor fresh air and flows from the duct housing 24 to the air outlet 1231, being blown into the room. When the air outlet of the fresh air fan 31 is directed towards the air outlet side of the indoor heat exchanger 4, the fresh air fan 31 drives the outdoor fresh air flow towards the air outlet side of the indoor heat exchanger 4. At this time, the airflow that has exchanged heat with the indoor heat exchanger 4 is blown out from the air outlet side of the indoor heat exchanger 4 and mixes with the outdoor fresh air. When the indoor heat exchanger 4 is in a cooling cycle, the cold airflow blown out from the air outlet side of the indoor heat exchanger 4 will produce mist when it encounters the room temperature outdoor fresh air. This can satisfy the airflow preferences of some users. In summary, both methods can achieve the goal of sending outdoor fresh air into the room to freshen the indoor air.

[0061] In some embodiments of the present invention, such as Figure 1 , Figure 6 and Figure 11 As shown, the main air fan 23 and the inner wall of the duct housing 24 define the main air duct 21. The outer wall of the duct housing 24 and the inner wall of the housing 1 define the auxiliary air duct 22. The air outlet of the auxiliary air duct 22 is located adjacent to the air outlet of the main air duct 21. The auxiliary air duct 22 is connected to the fresh air outlet 125. The air outlet of the fresh air fan 31 is connected to the auxiliary air duct 22 to deliver air towards the auxiliary air duct 22. The fresh air fan 31 can drive outdoor fresh air from the fresh air inlet 124 to the auxiliary air duct 22. The main air duct 21 can be used to deliver airflow (including cooling airflow, heating airflow, or normal temperature airflow) into the room. When the air outlet of the main air duct 21 delivers airflow into the room, it can also bring out the fresh air from the auxiliary air duct 22. Thus, outdoor fresh air can be introduced into the room, making the indoor air fresher and improving the user comfort of the air conditioning indoor unit 100.

[0062] According to some embodiments of the present invention, reference Figure 1-Figure 2 The air duct component 2 cooperates with the housing 1 to define a main air duct 21 and an auxiliary air duct 22 that are spaced apart. The air outlet of the auxiliary air duct 22 is located adjacent to the air outlet of the main air duct 21. The main air duct 21 is connected to the air outlet 1231 and the first indoor air inlet 1211 respectively. The auxiliary air duct 22 is connected to the air outlet 1231. The air duct component 2 includes a main fan 23, which is located inside the main air duct 21. The indoor heat exchanger 4 is located inside the housing 1 and between the first indoor air inlet 1211 and the main fan 23.

[0063] Understandably, the main fan 23, located within the main air duct 21, drives airflow from the first indoor air inlet 1211 to the air outlet 1231, and then into the room. During this flow, the air passes through the indoor heat exchanger 4, exchanging heat with it, causing the air temperature to drop or rise, thus enabling the airflow into the room to cool or heat. Because the outlet of the auxiliary air duct 22 is located near the outlet of the main air duct 21, when air is discharged from the outlet of the main air duct 21, the airflow within the auxiliary air duct 22 is carried out of the auxiliary air duct 22. This increases the airflow volume at the outlet 1231, resulting in better cooling or heating performance of the indoor unit 100.

[0064] In addition, the main fan 23 can work independently, in which case cooling 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, in which case 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, in which case cooling or heating air flows into the room through the main air duct 21 and outdoor fresh air flows into the room through the auxiliary air duct 22. Of course, when the main fan 23 and the fresh air fan 31 work simultaneously, the compressor that controls the flow of refrigerant in the indoor heat exchanger 4 can be shut down. In this case, the main fan 23 drives the ambient temperature airflow out of the main air duct 21 while simultaneously driving the outdoor fresh air out of the auxiliary air duct 22.

[0065] In some embodiments of the present invention, such as Figure 2-Figure 3 and Figure 12As shown, the duct component 2 includes a duct housing 24 with a duct opening 241. A main fan 23 is disposed inside the duct housing 24. The main fan 23 and the inner wall of the duct housing 24 define a main duct 21. An auxiliary duct 22 is defined between the outer wall of the duct housing 24 and the inner wall of the housing 1. It can be understood that the main fan 23 being disposed inside the duct housing 24 facilitates the definition of the main duct 21 together with the inner wall of the duct housing 24. The main fan 23 drives the airflow to flow into the main duct 21, and then flows out of the duct housing 24 from the duct opening 241 of the main duct 21, flows to the air outlet 1231 of the housing 1, and flows into the room. When the airflow flows out from the duct opening 241, a negative pressure is formed at the duct opening 241. As a result, the airflow in the auxiliary duct 22 flows to the duct opening 241, and then flows into the room together with the airflow in the main duct 21. In addition, the outer wall of the air duct housing 24 and the inner wall of the housing 1 can easily define the auxiliary air duct 22.

[0066] According to some embodiments of the present invention, such as Figures 1-3 As shown, there can be multiple main air ducts 21, and an auxiliary air duct 22 is provided on the outside of the air outlet of each main air duct 21. 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 multiple auxiliary air ducts 22 to output air. When the fresh air fan 31 is not working, the air output of multiple auxiliary air ducts 22 can further increase the air output, further improving the cooling or heating effect of the air conditioner indoor unit 100. When the fresh air fan 31 is working, 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.

[0067] Combination Figure 3 and Figure 8 In some embodiments of the present invention, the ventilation system 3 may be located below the duct component 2, that is, the exhaust fan 32 and the fresh air fan 31 may be located below the duct component 2. This facilitates the arrangement of the exhaust fan 32 and the fresh air fan 31 in the indoor unit 100 of the air conditioner, and also facilitates the air outlet of the fresh air fan 31 to send air towards the air inlet or 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.

[0068] like Figure 1-Figure 2As 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 is 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; and both the left side wall 121 and the right side wall 122 of the housing 1 can also have first indoor air inlets 1211. Thus, indoor air can enter the housing 1 through the first indoor air inlet 1211 and exchange heat with the indoor heat exchanger 4. The heat-exchanged airflow is then blown into the room from the air outlet 1231 to cool or heat the room. Having a first indoor air inlet 1211 on both the left side wall 121 and the right side wall 122 of the housing 1 increases the area of ​​the first indoor air inlet 1211, increases the air intake, and thus provides more heat exchange airflow to the indoor unit 100 of the air conditioner, improving its cooling or heating performance.

[0069] In some embodiments of the present invention, the main fan 23 is a centrifugal fan. The centrifugal fan is characterized by airflow entering from the axial direction of the centrifugal fan and exiting from the radial direction of the centrifugal fan. The use of a centrifugal fan in the main fan 23 facilitates the intake of air from one or both sides of the axial direction of the main fan 23 and then the airflow is blown out from the radial direction of the main fan 23, that is, the air duct opening 241.

[0070] like Figure 4 As shown, according to some embodiments of the present invention, the housing 1 is provided with a second indoor air inlet 1281, which is connected to the auxiliary air duct 22. Indoor air can also enter the auxiliary air duct 22 from the second indoor air inlet 1281, thereby increasing the air volume in the auxiliary air duct 22. When the air is discharged at the air outlet of the main air duct 21, the airflow in the auxiliary air duct 22 will be carried out of the auxiliary air duct 22, thereby increasing the air volume of the air outlet 1231 and making the cooling or heating effect of the air conditioning indoor unit 100 better.

[0071] In some embodiments of the present invention, the housing 1 is provided with a first switch door, which 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, airflow 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 internal components of the housing 1 and preventing dust and other substances from entering the housing 1 and damaging the internal components; moreover, the first switch door can also prevent the user from putting their hand into the housing 1 through the second indoor air inlet 1281 and causing danger.

[0072] In some embodiments of the present invention, reference is made to Figure 1-Figure 2The housing 1 may include a main frame 11 and a shell 12. The main frame 11 is located inside the shell 12. The first indoor air inlet 1211, the air outlet 1231, the sewage inlet 126, the sewage outlet 127, the fresh air inlet 124, and the fresh air outlet 125 are located on the shell 12. The duct components 2 and the ventilation system 3 are both installed on the main frame 11. It can be understood that the main frame 11 can be used to support the duct components 2 and the ventilation system 3, and the shell 12 can be enclosed outside the main frame 11, thereby protecting the main frame 11 and supporting the duct components 2 and the ventilation system 3. Furthermore, the housing 12 facilitates the installation of the first indoor air inlet 1211, air outlet 1231, sewage inlet 126, sewage outlet 127, fresh air inlet 124, and fresh air outlet 125, providing an environment for their installation.

[0073] According to some embodiments of the present invention, such as Figures 9-10 As shown, the main frame 11 includes a skeleton 111 and a fixing frame 112. The skeleton 111 has multiple first mounting cavities 1111, and each first mounting cavity 1111 has a mounting opening 1112 on one side. The duct housing 24 is rotatably mounted into the first mounting cavity 1111 through the mounting opening 1112. A fixing frame 112 is fixed at each mounting opening 1112, and a part of the second drive assembly 6 is fixed to the fixing frame 112. The first mounting cavity 1111 can accommodate the duct housing 24, facilitating the installation and rotation of the duct housing 24. The mounting opening 1112 facilitates the installation of the duct housing 24. The fixing frame 112, located at the mounting opening 1112, can limit the duct housing 24 to prevent it from falling off the mounting opening 1112. At the same time, the fixing frame 112 can also be used to support part of the second drive assembly 6.

[0074] Combination Figure 10 In some embodiments of the present invention, the main frame 11 is further provided with a second mounting cavity 1113, and the ventilation system 3 can be located in the second mounting cavity 1113. The second mounting cavity 1113 is located below the plurality of first mounting cavities 1111. The housing 12 is also provided with a sewage inlet 126 and a sewage outlet 127, and a sewage exhaust fan 32 is located between the sewage inlet 126 and the sewage outlet 127. The second mounting cavity 1113 can accommodate the ventilation system 3, including the sewage exhaust fan 32 and the fresh air fan 31. The fact that the second mounting cavity 1113 is located below the plurality of first mounting cavities 1111 facilitates the arrangement of the sewage exhaust fan 32 and the fresh air fan 31 in the indoor unit 100 of the air conditioner. It also facilitates the air outlet of the fresh air fan 31 to be directed toward the air inlet or 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, reference Figure 2 and Figure 10 The housing 1 may include a front panel 123, on which a plurality of air outlets 1231 are provided at intervals in the vertical direction. The left side wall 121 and the right side wall 122 of the housing 1 are respectively provided with first indoor air inlets 1211. The air duct component 2 is disposed inside the housing 1. The air duct component 2 includes a plurality of air duct housings 24 with air duct openings 241 and a plurality of main fans 23. The plurality of air duct housings 24 are rotatably disposed inside the housing 1. The plurality of air duct housings 24 are arranged one-to-one with the plurality of air outlets 1231. The plurality of main fans 23 are rotatably installed one-to-one with the plurality of air duct housings 24. A plurality of first drive components 5 are arranged one-to-one with the plurality of main fans 23 to drive the plurality of main fans 23 to rotate independently. A plurality of second drive components 6 are respectively matched with the plurality of air duct housings 24 to drive the plurality of air duct housings 24 to rotate. The indoor heat exchanger 4 is disposed inside the housing 1 and located between the air duct component 2 and the first indoor air inlet 1211.

[0076] Understandably, the first drive assembly 5 can drive the main fan 23 to rotate. The rotation of the main fan 23 can drive airflow from the first indoor air inlet 1211 to the duct component 2. During this process, the airflow exchanges heat with the indoor heat exchanger 4, causing the airflow to cool or heat up before entering the duct component 2. Then, it flows from the duct opening 241 to the air outlet 1231, and then into the room, to achieve the purpose of cooling or heating the room. In addition, since the duct housing 24 has the duct opening 241, the duct opening 241 can rotate with the duct housing 24 within the casing 1. Therefore, the duct housing 24 can rotate to different positions to achieve different air outlet directions. Furthermore, the rotatability of the duct housing 24 relative to the casing 1 facilitates the adjustment of the air outlet direction of the indoor unit 100 of the air conditioner, meeting the airflow needs of different users. The second drive assembly 6 can drive the duct housing 24 to rotate, thus facilitating the rotation of the duct housing 24.

[0077] The left side wall 121 and right side wall 122 of the housing 1 can each be provided with a first indoor air inlet 1211, which can increase the area of ​​the first indoor air inlet 1211 and increase the air intake, thereby providing more heat exchange airflow for the indoor unit 100 of the air conditioner and 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 great restrictions on the location and number of the first indoor air inlets 1211. As long as the first indoor air inlets 1211 are provided on the left side wall 121 and / or the right side wall 122, they can all fall within the protection scope of this invention.

[0078] The front surface of the casing 1 is provided with multiple air outlets 1231 to increase the air volume and thus provide more airflow (including cold air, hot air, or fresh air) to the room. The multiple air outlets 1231 are spaced vertically on the front surface of the casing 1 to facilitate their arrangement. Multiple air outlets 1231 can be correspondingly provided with multiple duct housings 24 and multiple main fans 23 to guide the airflow to different air outlets 1231. Multiple first drive components 5 are configured one-to-one with multiple main fans 23 to drive the multiple main fans 23 to rotate independently. Multiple second drive components 6 are respectively configured one-to-one with multiple duct housings 24 to drive the multiple duct housings 24 to rotate individually. Thus, the main fans 23 can rotate independently; the duct housings 24 can also rotate individually; and the main fans 23 and the duct housings 24 can both rotate. Furthermore, multiple main fans 23 can rotate independently of each other, thus allowing some main fans 23 to operate while others are not; multiple duct housings 24 can also rotate independently of each other, thus allowing some duct housings 24 to operate while others are not. This allows the airflow to be adjusted according to user needs.

[0079] Furthermore, such as Figure 2 As shown, the housing 1 may also include a rear panel 128. The front panel 123 and the rear panel 128 are located at opposite ends of the main frame 11. A second indoor air inlet 1281 is provided on the rear panel 128, which provides an environment for the second indoor air inlet 1281. Indoor air can then enter the auxiliary air duct 22 from the second indoor air inlet 1281, thereby increasing the airflow within the auxiliary air duct 22. When air is discharged from the outlet of the main air duct 21, the airflow within the auxiliary air duct 22 is carried out, thus increasing the airflow from the outlet 1231 and improving the cooling or heating effect of the indoor unit 100.

[0080] According to some embodiments of the present invention, such as Figure 2 As shown, there can be two indoor heat exchangers 4, which are respectively located on the left and right sides of the air duct component 2. Thus, an indoor heat exchanger 4 can be installed at the first indoor air inlet 1211 on the left side wall 121 and the first indoor air inlet 1211 on the right side wall 122 of the casing 1, thereby increasing the heat exchange area, improving the cooling or heating capacity, and allowing more cold or hot air to enter the room, thereby improving the cooling or heating performance of the air conditioning indoor unit 100.

[0081] In some embodiments of the present invention, such as Figure 10As shown, each second drive assembly 6 includes a motor 61, a gear 62, and an annular gear ring 63. The motor 61 is mounted on the housing 1, and the gear 62 meshes with the motor 61 to be driven to rotate. The gear ring 63 is fixed to the corresponding air duct housing 24, and meshes 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, and the gear 62, through meshing with the gear ring 63, drives the gear ring 63 to rotate. Thus, the gear ring 63 can drive the air duct housing 24 to rotate.

[0082] refer to Figure 10 According to some embodiments of the present invention, the gear ring 63 can be an internal gear ring 63, which allows 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, and further reducing the volume of the second drive assembly 6, thereby saving internal space for the air conditioner indoor unit 100 and reducing the structural volume of the air conditioner indoor unit 100.

[0083] Combination Figure 10 In some embodiments of the present invention, the indoor unit 100 of the air conditioner further includes a plurality of protective rings 113, which are fixed on the housing 1. At least one axial end of each air duct component 2 is clearance-fitted with the protective ring 113, thereby allowing the air duct component 2 to rotate relative to the protective ring 113. The protective ring 113 can provide support and a rotational environment for the air duct component 2.

[0084] According to some embodiments of the present invention, such as Figure 10 As shown, the indoor unit 100 of the air conditioner also includes an air outlet grille 25. Each air duct housing 24 has an air outlet grille 25 at the air duct opening 241. Thus, while facilitating air outlet, the air outlet grille 25 can protect the internal components of the air duct housing 24, preventing dust and other contaminants from entering the air duct housing 24 and damaging the internal components, such as the main motor 61. Moreover, the air outlet grille 25 can also prevent users from putting their hands into the air duct housing 24 through the air duct opening 241 and touching the main motor 61, which could cause danger.

[0085] An air conditioner according to an embodiment of the present invention includes an indoor unit 100 as described above.

[0086] According to an embodiment of the air conditioner of the present invention, the duct housing 24 is rotatably disposed within the casing 1, allowing the duct housing 24 to be located at different positions within the casing 1. These different positions allow airflow to exit the internal space of the duct housing 24 from different angles. Therefore, the rotation of the duct housing 24 within the casing 1 can adjust the airflow direction of the duct housing 24, thereby meeting different airflow needs of users. The indoor unit 100 of the air conditioner of the present invention also includes a ventilation system 3, comprising an exhaust fan 32 and a fresh air fan 31. The exhaust fan 32 drives polluted airflow from the exhaust outlet 127 to the outside, while the fresh air fan 31 drives fresh outdoor air into the room, thereby purifying the indoor air.

[0087] 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. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0088] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0089] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0090] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing is provided with a first indoor air inlet, an air outlet, a sewage inlet, a sewage outlet, a fresh air inlet, and a fresh air outlet; A duct component is provided inside the housing. The duct component includes a duct housing and a main fan. The main fan and the inner wall of the duct housing define a main duct. An auxiliary duct is defined between the outer wall of the duct housing and the inner wall of the housing. The outlet end of the auxiliary duct is located adjacent to the outlet end of the main duct. The auxiliary duct is connected to the fresh air outlet. The outlet end of the fresh air fan is connected to the auxiliary duct to deliver air toward the auxiliary duct. The duct housing is rotatably disposed within the housing, the main fan is rotatably disposed within the duct housing, the main fan is a centrifugal fan, the internal space of the duct housing is connected to the first indoor air inlet and the air outlet respectively, and the auxiliary duct is connected to the air outlet; An indoor heat exchanger is disposed between the air duct component and the first indoor air inlet. A ventilation system is provided inside the casing. The ventilation system includes a sewage exhaust fan and a fresh air fan. The air inlet of the sewage exhaust fan is connected to the sewage exhaust inlet, and the air outlet of the sewage exhaust fan is connected to the sewage exhaust outlet. The air inlet of the fresh air fan is connected to the fresh air inlet, and the air outlet of the fresh air fan is connected to the fresh air outlet. The air outlet is provided on the front surface of the housing, and the first indoor air inlet is provided on the left side wall and / or right side wall of the housing.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The exhaust fan and the fresh air fan are configured to start and stop synchronously.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The sewage exhaust fan and the fresh air fan share a single motor.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The fresh air outlet and the air outlet are the same ventilation opening, and the air outlet of the fresh air fan is connected to the air duct shell.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The air outlet of the fresh air fan is directed toward the air inlet or air outlet of the indoor heat exchanger.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, There are multiple main air ducts, and an auxiliary air duct is provided on the outer side of the air outlet of each main air duct.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The ventilation system is located below the air duct component.

8. The indoor unit of the air conditioner according to any one of claims 1-7, characterized in that, The housing includes a main frame and a shell. The main frame is located inside the shell. The first indoor air inlet, the air outlet, the sewage inlet, the sewage outlet, the fresh air inlet, and the fresh air outlet are located on the shell. The air duct components and the ventilation system are all installed on the main frame.

9. An air conditioner, characterized in that, Including the indoor unit of an air conditioner according to any one of claims 1-8.

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