Air conditioner indoor unit

Abstract

The present invention discloses an air conditioner indoor unit, which includes: a casing having an independent heat exchange air duct and a purification air duct, the purification air duct having a purification air inlet, a purification air outlet, an air inlet section and an air outlet section, the air inlet section communicating with the purification air inlet, the air outlet section communicating with the purification air outlet, and the casing further having a connection channel communicating the heat exchange air duct and the air inlet section; and a purification module disposed in the air outlet section. The technical solution of the present invention can increase the air volume of the purification air outlet and can also change the air outlet temperature of the purification air outlet.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning equipment, and particularly to an air conditioner indoor unit. Background Art

[0002] At present, some air conditioner indoor units have a purification function. However, in terms of the current purification structure and functional method, the purification scheme adopts constant temperature for purification, that is, the heat exchange module and the purification module of the air conditioner are independent of each other. Due to the limited space of the air conditioner structure, the purification device of this scheme has a small volume, resulting in a correspondingly small air output of the purification. Summary of the Invention

[0003] The main object of the present invention is to propose an air conditioner indoor unit, aiming to increase the air output of the purification air outlet.

[0004] To achieve the above object, the air conditioner indoor unit proposed by the present invention includes

[0005] A casing having an independent heat exchange air duct and a purification air duct. The purification air duct has a purification air inlet, a purification air outlet, an air inlet section, and an air outlet section. The air inlet section communicates with the purification air inlet, the air outlet section communicates with the purification air outlet, and the casing also has a connection channel communicating the heat exchange air duct and the air inlet section; and,

[0006] A purification module disposed in the air outlet section.

[0007] Optionally, a first air door is further provided in the casing, and the first air door can open or close the connection channel.

[0008] Optionally, the first air door is rotatably connected to the casing.

[0009] Optionally, a driving motor is further provided in the casing, and the driving motor is connected to the first air door to be able to drive the first air door to open or close the connection channel.

[0010] Optionally, the connection channel has a first branch communicating with the air inlet section and a second branch communicating with the air outlet section, and the second branch is connected to the air outlet side of the purification module.

[0011] Optionally, the first air door in the casing can selectively close the first branch and the second branch.

[0012] Optionally, a second air door is provided at the purification air inlet, and the second air door can open or close the purification air inlet; and / or,

[0013] A third air door is provided at the purification air outlet, and the third air door can open or close the purification air outlet.

[0014] Optionally, the purification module includes a humidification module and / or a filtration module.

[0015] Optionally, the indoor air conditioner is a floor-standing indoor air conditioner, which has the casing, and the heat exchange air duct and the purification air duct are distributed in the up-and-down direction. The heat exchange air duct has a heat exchange air inlet and a heat exchange air outlet.

[0016] Optionally, the connection channel is arranged between the bottom of the heat exchange air duct and the top of the purification air duct.

[0017] In the present invention, since the air flow after heat exchange in the heat exchange air duct is introduced into the purification air duct, in the heating state, part of the hot air flow in the heat exchange air duct flows into the purification air duct and mixes with the air flow in the purification air duct, and the mixed air flow flows out from the purification air outlet, that is, the air flow blown out from the purification air outlet is at a higher temperature, so that discomfort to the user can be avoided. In the cooling state, part of the cold air flow in the heat exchange air duct flows into the purification air duct, so that cold air is blown out from the purification air outlet. At the same time, the air flow flowing from the heat exchange air duct into the purification air duct is purified by the purification module and then blown out from the purification air outlet, which can purify more air flow and increase the air volume blown out from the purification air outlet. When the purification module has a humidification module, the humidification amount of the indoor air conditioner can be significantly improved. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0019] Figure 1 It is a schematic plan view of an embodiment of the indoor air conditioner of the present invention;

[0020] Figure 2 It is Figure 1 the schematic internal structure view of the indoor air conditioner in

[0021] Figure 3 It is Figure 2 the schematic sectional view of the indoor air conditioner in

[0022] Figure 4 It is Figure 2 the schematic internal structure view of the indoor air conditioner in another state in

[0023] Figure 5 It is a schematic working principle view of an embodiment of the indoor air conditioner of the present invention;

[0024] Figure 6 Schematic diagram of the working principle of another embodiment of the indoor unit of the air conditioner according to the present invention;

[0025] Figure 7 Schematic diagram of the working principle of yet another embodiment of the indoor unit of the air conditioner according to the present invention.

[0026] Explanation of the reference numerals in the drawings:

[0027] Label Name Label Name 10 Housing 171 Main channel 11 Heat exchange air inlet 172 First branch 12 Heat exchange air outlet 173 Second branch 13 Heat exchange air duct 21 First air damper 14 Purification air duct 22 Second air damper 141 Air inlet section 23 Third air damper 142 Air outlet section 31 Indoor heat exchanger 15 Purification air inlet 32 Heat exchange fan 16 Purification air outlet 41 Purification fan 17 Connection channel 42 Purification module

[0028] The realization of the object of the present invention, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0031] The present invention provides an indoor unit of an air conditioner, as Figures 1 to 3 shown, the indoor unit of the air conditioner includes a housing 10, an indoor heat exchanger 31 and a heat exchange fan 32. The housing 10 is provided with a heat exchange air inlet 11, a heat exchange air outlet 12 and a heat exchange air duct 13 connecting the heat exchange air inlet 11 and the heat exchange air outlet 12. The indoor heat exchanger 31 and the indoor fan are both arranged in the heat exchange air duct 13. Indoor air enters the heat exchange air duct 13 from the heat exchange air inlet 11 under the action of the heat exchange fan 32, and is blown out from the heat exchange air outlet 12 after heat exchange by the indoor heat exchanger 31.

[0032] Optionally, the indoor air conditioner includes a floor-standing unit, or the indoor air conditioner includes a wall-mounted unit, etc. The floor-standing unit has the housing 10 as described above. The housing 10 includes a panel extending in the vertical direction, a back panel disposed opposite to the panel, a base, and a top cover. The lower ends of the panel and the back panel are mounted on the base, and the top cover covers the upper ends of the panel and the back panel. In the embodiment of the present invention, the indoor air conditioner is generally in the shape of a square cylinder or a circular cylinder. When the indoor air conditioner is in the shape of a circular cylinder, both the panel and the back panel are arc-shaped plates, and the panel and the back panel are connected to each other to enclose a closed annular structure. When the indoor air conditioner is in the shape of a square cylinder, both the panel and the back panel are straight plates, and the panel and the back panel are connected by side plates to form a closed annular structure. Usually, the back panel is provided with a heat exchange air inlet 11, and the panel is provided with a heat exchange air outlet 12, so that the indoor air conditioner forms a structure of air inlet at the back and air outlet at the front. Optionally, the heat exchange air outlets 12 are provided at positions near the left and right sides of the panel, so that the indoor air conditioner forms a structure of air outlet at both left and right sides.

[0033] Please refer to Figure 3 , in order to make the indoor air cleaner, in one embodiment, the housing 10 has a purification air duct 14. The purification air duct 14 and the heat exchange air duct 13 are two independent air ducts. An air treatment module is arranged in the purification air duct 14, which can clean or filter the air. The purification air duct 14 has a purification air inlet 15 and a purification air outlet 16. The purification air inlet 15 can be specifically arranged on the back panel to avoid it being exposed in the front. Similarly, the purification air outlet 16 can also be arranged on the back panel.

[0034] Optionally, the purification air duct 14 and the heat exchange air duct 13 are distributed in the vertical direction. For example, the purification air duct 14 can be arranged below the heat exchange air duct 13. Such an arrangement is beneficial to making full use of the space of the floor-standing unit. For the wall-mounted unit, the purification air duct 14 and the heat exchange air duct 13 are distributed in the horizontal direction.

[0035] The air treatment module is arranged near the bottom of the housing 10. For example, the air treatment module is installed on the base. The air treatment module can purify the air flowing from the purification air inlet 15 to the purification air outlet 16, so as to provide purified air for the indoor, making the indoor air cleaner. It should be noted that the directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0036] The air treatment module includes a purification fan 41 and a purification module 42. The purification fan 41 and the purification module 42 are located in the purification air duct 14. Air enters the purification air duct 14 from the purification air inlet 15, and after being processed by the purification module 42, it is blown out from the purification air outlet 16. In this way, purified air can be provided for the room, making the indoor air cleaner.

[0037] In this embodiment, the purification fan 41 is a centrifugal fan. Of course, the purification fan 41 can also be of other types, and no limitation is imposed thereon. When the purification fan 41 is a centrifugal fan, its axis can be placed horizontally, for example, it can be placed in the left-right direction.

[0038] The purification module 42 in the embodiment of the present invention can filter, sterilize, humidify, wash, etc. the air, achieving any one or more of these effects. Specifically, in one embodiment, the purification module 42 includes a filtering module, and the filtering module can be a HEPA net, an activated carbon net, a formaldehyde killer net, or a common filter net, etc. In one embodiment, the purification module 42 includes a plurality of filter nets. Specifically, the purification module 42 includes a first filter net and a second filter net. The mesh holes of the first filter net are larger than those of the second filter net. The first filter net is a common filter net, and the second filter net is any one or a combination of a HEPA net, an activated carbon net, or a formaldehyde killer net. Optionally, the first filter net is located on the air inlet side of the second filter net to intercept larger particulate pollutants and prevent them from clogging the second filter net and affecting the service life of the second filter net. In addition, the purification module 42 may further include a humidifying module, and the humidifying module can wash the air, achieving multiple effects of humidifying and sterilizing. When humidifying the air, the water droplets for humidification are sprayed into the purification air duct 14, which can wash the air, causing particulate matters such as dust in the air to mix with the water droplets and deposit. The humidifying module can be a humidifying film, a water wheel, a spray head, or other structures.

[0039] In the embodiment of the present invention, the machine shell 10 further has a connection channel 17 connecting the heat exchange air duct 13 and the purification air duct 14. The connection channel 17 is provided on the air outlet side of the heat exchange fan 32 and the indoor heat exchanger 31. In this way, the air after heat exchange by the indoor heat exchanger 31 can flow through the connection channel 17 to the purification air duct 14, and after being mixed with the air in the purification air duct 14, it can flow out from the purification air outlet 16.

[0040] In the present invention, since the air flow after heat exchange in the heat exchange air duct 13 is introduced into the purification air duct 14, in the heating state, a part of the hot air flow in the heat exchange air duct 13 flows into the purification air duct 14 and mixes with the air flow in the purification air duct 14. The mixed air flow flows out from the purification air outlet 16, that is, the air flow blown out from the purification air outlet 16 has a higher temperature, thus avoiding discomfort to users. In the cooling state, a part of the cold air flow in the heat exchange air duct 13 flows into the purification air duct 14, so that cold air is blown out from the purification air outlet 16.

[0041] The purification air duct 14 has a purification air inlet 15, a purification air outlet 16, an air inlet section 141 and an air outlet section 142. The air inlet section 141 is communicated with the purification air inlet 15, and the air outlet section 142 is communicated with the purification air outlet 16; the purification module 42 is arranged in the air outlet section 142; the connection channel 17 is communicated with the air inlet section 141. In this way, the air flow flowing from the heat exchange air duct 13 into the purification air duct 14 is purified by the purification module 42 and then blown out from the purification air outlet 16, so that more air flow is purified. When the purification module 42 has a humidification module, the humidification amount of the indoor unit of the air conditioner can be significantly improved.

[0042] In one embodiment, a first air door 21 is further arranged in the casing 10. The first air door 21 can open or close the connection channel 17, so that the connection channel 17 can be opened or closed according to user needs. When the first air door 21 is closed, the heat exchange air duct 13 and the purification air duct 14 are two independent air ducts, and the air flows in the two air ducts do not interfere with each other. When the first air door 21 is opened, at least part of the air flows in the two air ducts are mixed together.

[0043] Specifically, the first air door 21 is rotatably connected to the casing 10. Of course, the first air door 21 and the casing 10 can also be slidably connected or the like. The rotation connection method has a smaller movement stroke. For example, it can rotate inside the connection channel 17 without the need to reserve an additional movement stroke, which is beneficial to the compactness of the whole machine structure. In the embodiment of the present invention, the shape of the first air door 21 is generally similar to the cross-section of the connection channel 17. For example, when the cross-section of the connection channel 17 is circular, the first air door 21 is a circular plate; when the cross-section of the connection channel 17 is square, the first air door 21 is a square plate. The first air door 21 can also be of other shapes. At least, the first air door 21 can completely close the connection channel 17.

[0044] A driving motor is further arranged in the casing 10. The driving motor is connected to the first air door 21 to be able to drive the first air door 21 to open or close the connection channel 17. The method of driving the first air door 21 to open or close by the driving motor has a higher degree of automation.

[0045] In one embodiment, the connection channel 17 has a first branch 172 communicating with the air inlet section 141 and a second branch 173 communicating with the air outlet section 142. Moreover, the second branch 173 is connected to the air outlet side of the purification module 42. Specifically, the connection channel 17 has a main channel 171. The main channel 171 is connected to the heat exchange air duct 13, and both the first branch 172 and the second branch 173 are connected to the main channel 171. In this embodiment, when the purification air outlet 16 is closed, the air flow in the purification air duct 14 can flow into the heat exchange air duct 13. And due to the setting of the second branch 173 which is connected to the air outlet side of the purification module 42, the air flow in the purification air duct 14 will flow through the purification module 42 for purification before flowing into the heat exchange air duct 13, so as to ensure that part of the air flow blown out from the heat exchange air duct 13 passes through the purification module 42 for filtration or humidification.

[0046] It should be noted that the descriptions such as "first" and "second" involved in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0047] Please refer to Figure 5 , in one embodiment, a second air damper 22 is provided at the purification air inlet 15, and the second air damper 22 can open or close the purification air inlet 15; and / or, a third air damper 23 is provided at the purification air outlet 16, and the third air damper 23 can open or close the purification air outlet 16. It should be noted that the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where both A and B are satisfied.

[0048] By setting the second air damper 22, the opening or closing of the purification air inlet 15 can be realized to adjust the air volume output from the purification air outlet 16. And by setting the third air damper 23, the opening or closing of the purification air outlet 16 can be realized to control the air flow direction, that is, to control the air flow direction in the connection channel 17.

[0049] Specifically, motors can be respectively provided at the purification air inlet 15 and the purification air outlet 16 to respectively drive the second air damper 22 and the third air damper 23 to open and close. In addition, the second air damper 22 is provided on the air outlet side of the purification fan 41, that is, between the purification fan 41 and the purification module 42. The second air damper 22 can be rotatably connected to the housing 10. When the second air damper 22 is in the up-and-down extending state, the purification air inlet 15 is closed; when the second air damper 22 rotates upward, the purification air inlet 15 is opened. In other embodiments, the second air damper 22 can also be provided on the air inlet side of the purification fan 41.

[0050] In one embodiment, the first air damper 21 is arranged corresponding to the main channel 171 so as to be able to open or close the main channel 171. When the main channel 171 is open, both the first branch 172 and the second branch 173 are connected to the purification air duct 14.

[0051] As Figure 3 shown, Figure 3 when the first air damper 21 in is open, when the first air damper 21 is open and the third air damper 23 is open, due to the low air pressure at the purification air outlet 16, part of the air flow in the heat exchange air duct 13 flows to the purification air duct 14 and then flows out from the purification air outlet 16, so that cold air or hot air is blown out from the purification air outlet 16. Specifically, part of the air flow flows into the purification air duct 14 from the first branch 172 and flows out from the purification air outlet 16 after being purified by the purification module 42. Another part of the air flow flows into the purification air duct 14 from the second branch 173 and directly flows out from the purification air outlet 16. During this process, when the second air damper 22 is open, the indoor air flow can also enter the purification air duct 14 from the purification air inlet 15, and is blown out from the purification air outlet 16 after being purified by the purification module 42. At this time, since the air flow in the purification air duct 14 is a mixture of two air flows, it is equivalent to increasing the air flow rate in the purification air duct 14, more air flow is purified, and more air flow is blown out from the purification air outlet 16, which is equivalent to blowing strong wind from the purification air outlet 16. During this process, when the second air damper 22 is closed, all the air flow blown out from the purification air outlet 16 is diverted from the heat exchange air duct 13. At this time, the air output of the purification air outlet 16 is less, that is, weak wind is blown out. The controller of the air conditioner indoor unit can control the second air damper 22 to open or close so as to switch the air output from the purification air outlet 16 between strong wind and weak wind. At the same time, during this process, another part of the air flow in the heat exchange air duct 13 is blown out from the heat exchange air outlet 12.

[0052] When the third air damper 23 is closed and the second air damper 22 is open, the air flow in the purification air duct 14 flows to the heat exchange air duct 13 through the connection channel 17. Specifically, the air flow enters the purification air duct 14 from the purification air inlet 15. Part of the air flow in the purification air duct 14 directly flows from the first branch 172 to the heat exchange air duct 13, and another part of the air flow flows to the heat exchange air duct 13 through the second branch 173 after being purified by the purification module 42. All the air flow in the purification air duct 14 is mixed with the air flow entering from the heat exchange air inlet 11 in the heat exchange air duct 13 and finally blown out from the heat exchange air outlet 12.

[0053] As Figure 4 shown, Figure 4 when the first air damper 21 in is closed, at this time the connection channel is disconnected, and the heat exchange air duct and the purification air duct are two independent channels that are not connected to each other.

[0054] In one embodiment, the first air damper 21 within the cabinet 10 can selectively close the first branch 172 and the second branch 173. Specifically, the first air damper 21 is movably connected to the cabinet 10 to be able to have at least a first position, a second position, and a third position. In the first position, the first air damper 21 opens the first branch 172 and closes the second branch 173. When the third air damper 23 is open, part of the gas in the heat exchange air duct 13 flows into the purification air duct 14 from the first branch 172. In the second position, the first air damper 21 closes the first branch 172 and opens the second branch 173. When the third air damper 23 is closed and the second air damper 22 is open, the air flow in the purification air duct 14 flows into the heat exchange air duct 13 from the second branch 173. In the third position, the first air damper 21 closes both the first branch 172 and the second branch 173 simultaneously. In this embodiment, by providing the first air damper 21, the movement of the first air damper 21 can be controlled as needed to switch between the first branch 172 and the second branch 173.

[0055] In one embodiment, the air conditioner indoor unit is a floor-standing air conditioner indoor unit, which has the cabinet 10, and the heat exchange air duct 13 and the purification air duct 14 are distributed in the vertical direction. For example, in some embodiments, the heat exchange air duct 13 is located above the purification air duct 14. Specifically, in one embodiment, the cabinet 10 includes an upper housing and a lower housing. The upper housing and the lower housing are two independently formed housing parts, and the two housing parts are assembled together to form an integral whole. The heat exchange air duct 13 is formed within the upper housing, and the purification air duct 14 is formed within the lower housing. Of course, in other embodiments, the cabinet 10 can also be an integral housing extending in the vertical direction, that is, the upper housing and the lower housing are integrally formed. By arranging the heat exchange air duct 13 and the purification air duct 14 in the vertical direction, the space of the floor-standing air conditioner indoor unit can be fully utilized, facilitating the layout of the two air ducts. In addition, the cabinet 10 can also include an inner housing and an outer housing. The inner housing is located within the outer housing, and the inner housing forms the heat exchange air duct 13 and the purification air duct 14.

[0056] Optionally, the connection channel 17 is arranged between the bottom of the heat exchange air duct 13 and the top of the purification air duct 14. In this way, the length of the connection channel 17 is shorter, facilitating the rapid flow of air.

[0057] The following combines Figures 5 to 7 to specifically illustrate the working process of the air conditioner indoor unit. Figures 5 to 7 The dotted arrows in Figure 5As shown, the air conditioner indoor unit is in the normal mode. At this time, the first air door 21 is closed, the heat exchange air duct 13 and the purification air duct 14 are not connected to each other, and at the same time, the second air door 22 and the second air door 22 are open. A part of the air enters the heat exchange air duct 13 from the heat exchange air inlet 11, and after being heat-exchanged by the indoor heat exchanger 31, it is blown out from the heat exchange air outlet 12 to perform the normal cooling or heating mode. At the same time, there is also a part of the air that enters the purification air duct 14 from the purification air inlet 15, and after being filtered or humidified by the purification module 42, it is blown out from the purification air outlet 16 to perform the normal purification mode.

[0058] As Figure 6 shown, the air conditioner indoor unit is in the weak wind purification mode. At this time, the first air door 21 opens the first branch 172, the heat exchange air duct 13 and the purification air duct 14 are connected, and at the same time, the second air door 22 is closed and the second air door 22 is open. A part of the air enters the heat exchange air duct 13 from the heat exchange air inlet 11, and after being heat-exchanged by the indoor heat exchanger 31, a part of the air is blown out from the heat exchange air outlet 12 to perform the normal cooling or heating mode; there is also a part of the air that flows into the air inlet section 141 of the purification air duct 14 from the first branch 172, and after being filtered or humidified by the purification module 42, it is blown out from the purification air outlet 16.

[0059] As Figure 7 shown, the air conditioner indoor unit is in the strong wind purification mode. At this time, the first air door 21 opens the first branch 172, the heat exchange air duct 13 and the purification air duct 14 are connected, and at the same time, the second air door 22 and the second air door 22 are open. A part of the air enters the heat exchange air duct 13 from the heat exchange air inlet 11, and after being heat-exchanged by the indoor heat exchanger 31, a part of the air is blown out from the heat exchange air outlet 12 to perform the normal cooling or heating mode; there is also a part of the air that flows into the air inlet section 141 of the purification air duct 14 from the first branch 172, and after being filtered or humidified by the purification module 42, it is blown out from the purification air outlet 16. At the same time, there is also a part of the air that enters the purification air duct 14 from the purification air inlet 15, and after being mixed with the gas coming from the heat exchange air duct 13, they are jointly filtered or humidified by the purification module 42 and then blown out from the purification air outlet 16.

[0060] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that, Comprising: A casing having independent heat exchange air ducts and purification air ducts. The purification air duct has a purification air inlet, a purification air outlet, an air inlet section, and an air outlet section. The air inlet section communicates with the purification air inlet, the air outlet section communicates with the purification air outlet, and the casing also has a connection channel communicating the heat exchange air duct and the air inlet section; And, A purification module disposed in the air outlet section; The connection channel has a first branch communicating with the air inlet section and a second branch communicating with the air outlet section, and the second branch is connected to the air outlet side of the purification module; a first air damper is further provided in the casing, and the first air damper can open or close the connection channel; the first air damper in the casing can selectively close the first branch and the second branch; A second air damper is provided at the purification air inlet, and the second air damper can open or close the purification air inlet; A third air damper is provided at the purification air outlet, and the third air damper can open or close the purification air outlet; when the third air damper is closed and the second air damper is open, the air flow in the purification air duct flows to the heat exchange air duct via the connection channel.

2. The indoor air conditioner according to claim 1, wherein The first air damper is rotatably connected to the casing.

3. The indoor air conditioner according to claim 1, characterized in that A driving motor is further provided in the casing, and the driving motor is connected to the first air damper to be able to drive the first air damper to open or close the connection channel.

4. The air conditioner indoor unit according to claim 1, characterized in that The purification module includes a humidification module and / or a filtration module.

5. The air conditioner indoor unit according to claim 1, characterized in that, The air conditioner indoor unit is a floor-standing air conditioner indoor unit, the floor-standing air conditioner indoor unit has the casing, the heat exchange air duct and the purification air duct are distributed in the up-down direction, and the heat exchange air duct has a heat exchange air inlet and a heat exchange air outlet.

6. The air conditioner indoor unit according to claim 5, characterized in that, The connection channel is provided between the bottom of the heat exchange air duct and the top of the purification air duct.

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