CN212057521U

CN212057521U - Air purification device, air conditioner indoor unit and air conditioner

Info

Publication number: CN212057521U
Application number: CN202020588100.1U
Authority: CN
Inventors: 覃强
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-01
Anticipated expiration: 2030-04-17

Abstract

The utility model provides an air purification device, which comprises a shell, a purification cylinder and a driving part, wherein the shell is provided with an air inlet, an air outlet and an air channel formed between the air inlet and the air outlet; the purification cylinder is arranged in the air channel, one axial port of the purification cylinder is communicated with the air outlet, at least two air passing areas are formed on the outer peripheral wall of the purification cylinder and are distributed along the circumferential direction of the purification cylinder, and the wind resistance of one air passing area is smaller than that of the other air passing area; the driving part is arranged on the shell and used for driving the purifying cylinder to rotate around the axis of the purifying cylinder so as to selectively switch different air passing areas to correspond to the air inlets. The utility model discloses still provide indoor set of air conditioning and air conditioner including this air purification device. The utility model discloses technical scheme can the amount of wind of intelligent regulation new trend, the air quality of simultaneous control new trend effectively avoids introducing the problem that the new trend in-process exists that the air output is little and extravagant energy consumption.

Description

Air purification device, air conditioner indoor unit and air conditioner

Technical Field

The utility model relates to an air conditioning technology field, in particular to machine and air conditioner in air purification device, air conditioning.

Background

In the related art, in an indoor unit of an air conditioner, in order to purify fresh air introduced into the room from the outside, an easily-pulled and highly-efficient filter screen (HEPA screen for short) structure with a large air resistance is usually arranged between a fresh air pipe and a fan, so that the fresh air can be purified only through the HEPA screen with the large air resistance no matter the outdoor air is good or bad in quality, and the indoor fresh air volume cannot be effectively increased when the outdoor air is good, namely good outdoor air cannot be introduced into the room in a large quantity; in addition, no matter the outdoor air is good or bad, the outdoor air is purified through a HEPA network, and the purpose of saving energy cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing an air purification device aims at solving above-mentioned at least one technical problem.

In order to achieve the above object, the utility model provides an air purification device, air purification device includes:

the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an air inlet, an air outlet and an air channel formed between the air inlet and the air outlet;

the purification cylinder is arranged in the air channel, one axial port of the purification cylinder is communicated with the air outlet, at least two air passing areas are formed on the outer peripheral wall of the purification cylinder and are distributed along the circumferential direction of the purification cylinder, and the wind resistance of one air passing area is smaller than that of the other air passing area; and the number of the first and second groups,

the driving part is arranged on the shell and used for driving the purifying cylinder to rotate around the axis of the purifying cylinder so as to selectively switch different air passing areas to correspond to the air inlets.

In one embodiment, the air passing zone comprises an idling zone and a filtering zone, and the wind resistance of the idling zone is smaller than that of the filtering zone.

In an embodiment, the filtering area includes a first filtering area and a second filtering area, the first filtering area and the second filtering area are arranged along the circumferential direction of the purifying cylinder, the first filtering area is provided with a first HEPA net, the second filtering area is provided with a second HEPA net, and the wind resistance of the first HEPA net is smaller than that of the second HEPA net.

In an embodiment, the overfire air zone further comprises a dehumidification zone, and the dehumidification zone is provided with a dehumidification module.

In one embodiment, the purification cartridge comprises a support, a plurality of installation frames arranged along the circumferential direction of the support are formed on the circumferential side of the support, and the first HEPA net, the second HEPA net and the dehumidification module are respectively and correspondingly installed in the installation frames.

In an embodiment, the housing includes a purification cover, the purification cover is opened with the air inlet, and the purification cartridge is installed in the purification cover.

In an embodiment, two adjacent side walls of the purification cover are respectively provided with a partition plate, the width of each partition plate extends along the radial direction of the purification cylinder, the air inlet is located between the two partition plates, and the driving part is used for driving the purification cylinder to rotate so as to enable one of the overfire air areas to move between the two partition plates.

In an embodiment, the air purification device further comprises a primary filter screen, and the primary filter screen is located between the air inlet and the purification cylinder.

In an embodiment, the air inlet has two opposite side walls, the two side walls are both provided with slots, and two ends of the primary filter screen are respectively and correspondingly inserted into the two slots.

In one embodiment, the driving part comprises a motor, a driving gear and a driven gear, the driving gear is connected with a motor shaft of the motor, the driving gear is installed on the purification cover, the driven gear is installed at one end of the purification cylinder, and the driving gear is meshed with the driven gear.

In one embodiment, the housing further comprises a fan housing, and a fan is installed in the fan housing and located between the purifying cylinder and the air outlet.

In one embodiment, the fan housing is provided with a fan inlet, and the air outlet end of the purifying cylinder is in butt joint with the fan inlet.

In one embodiment, a sliding groove is formed on the periphery of the air inlet of the fan, and the air outlet end of the purifying cylinder is rotatably arranged in the sliding groove.

In one embodiment, a fresh air pipe is installed at the air inlet and is communicated with the air channel.

The utility model also provides an indoor unit of air conditioner, include:

the shell is provided with a fresh air outlet;

in the air purification device, the air purification device is installed in the shell, an air outlet of the air purification device is communicated with the fresh air outlet, and an air inlet of the air purification device is communicated with the outside.

The utility model also provides an air conditioner, including air condensing units, still include the interior machine of aforementioned air conditioning, the interior machine of air conditioning with air condensing units passes through the refrigerant pipe intercommunication.

The utility model provides an air purification device through set up the purification section of thick bamboo in its wind channel, the periphery wall of purification section of thick bamboo is formed with two at least cross the wind district of arranging along its circumference, and the windage in one of them cross the wind district is less than the windage in another cross the wind district, and it is rotatory to purify a section of thick bamboo through the drive of driver part drive to it is corresponding with the air intake to switch over different cross the wind district selectively. Therefore, when the outdoor air quality is poor, the purifying cylinder is driven to rotate by the driving part, and the overfire air area with larger wind resistance and better filtering effect corresponds to the air inlet so as to ensure the quality of the air introduced into the room from the outdoor; when the outdoor air quality is better, the air passing area with poor filtering effect or no filtering effect but with smaller wind resistance corresponds to the air inlet, so as to promote the amount of fresh air introduced into the room. The utility model discloses technical scheme, the amount of wind that can the intelligent regulation new trend, the air quality of simultaneous control new trend effectively avoids introducing the problem that the new trend in-process exists that the air output is little and extravagant energy consumption.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of an external structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of an internal structure of an indoor unit of an air conditioner according to an embodiment of the present invention

Fig. 3 is another schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view showing an external structure of the air cleaning apparatus shown in FIG. 2;

FIG. 6 is another schematic structural view of the air purification apparatus shown in FIG. 2;

FIG. 7 is a schematic cross-sectional view taken along line E-E of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken along line F-F of FIG. 7;

FIG. 9 is an exploded view of the air purification apparatus shown in FIG. 2;

FIG. 10 is another exploded view of the air purification apparatus shown in FIG. 2;

fig. 11 is an exploded view of the purification cartridge of fig. 10.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Shell body	110	Purifying cover
111	Air inlet	112	Inserting groove
				113	Partition board	120	Fan shell
121	Air inlet of fan	122	Air outlet
				130	Primary filter screen	200	Purifying cylinder
211	No load zone	212	The first filtering area
				213	A second filtering area	214	Dehumidification region
220	Support frame	300	Driving part
				310	Electric machine	320	Driving gear
330	Driven gear	340	Gear box
				400	Fan blower	500	Fresh air pipe
600	Outer casing	610	Fresh air outlet

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The embodiment of the utility model provides an air purification device, in this embodiment, this air purification device is applied to in the air conditioner, and of course in other embodiments, this air purification device also can be applied to other occasions, the utility model discloses do not do the restriction to this.

In an embodiment of the present invention, as shown in fig. 1 to 11, the air purifying device includes:

a housing 100, the housing 100 having an inlet 111, an outlet 122 and an air duct formed between the inlet 111 and the outlet 122;

the purification cylinder 200 is installed in the air duct, one axial port of the purification cylinder 200 is communicated with the air outlet 122, at least two air passing areas are formed on the outer peripheral wall of the purification cylinder 200 and are arranged along the circumferential direction of the purification cylinder 200, and the wind resistance of one air passing area is smaller than that of the other air passing area; and the number of the first and second groups,

a driving member 300 installed on the housing 100, wherein the driving member 300 is configured to drive the purification cartridge 200 to rotate around an axis thereof, so as to selectively switch different air passing areas to correspond to the air inlets 111.

The wind resistance refers to resistance to air, and the larger the wind resistance of the overfire area is, the smaller the amount of air allowed to flow, and conversely, the smaller the wind resistance of the overfire area is, the larger the amount of air allowed to flow. The overfire air zone may be a filtration or dehumidification zone 214 or an idle zone 211. The air passing through the filtering area can be filtered and purified by the filtering area, the filtering area can comprise a plurality of filtering areas with different filtering levels and different wind resistance levels, generally speaking, the wind resistance of the filtering area with the higher filtering level is larger, and the wind resistance of the filtering area with the lower filtering level is smaller; the dehumidification region 214 is capable of dehumidifying air flowing therethrough to reduce moisture introduced into the air; the empty space 211 refers to an air passing space which does not cover the filter screen and the dehumidification module, the empty space 211 may be completely empty, or a grid or an air guide strip may be partially or completely arranged, it can be understood that the air resistance of the empty space 211 is small, and a large amount of air can be allowed to circulate.

In this embodiment, the air treatment device is applied to an indoor unit of an air conditioner to selectively purify fresh air introduced from the outside into the room. Specifically, the driving part 300 drives the purifying cylinder 200 to rotate around the axis thereof, so as to selectively switch the overfire air areas with different wind resistance levels to correspond to the air inlet 111, thereby selectively purifying the fresh air. For example, when the outdoor air quality is poor (such as in haze weather), the filtering area may be switched to correspond to the air inlet 111 to filter and purify the fresh air, but because the air resistance of the filtering area is large, the allowed air volume is also small; when the outdoor air quality is better, the fresh air does not need to be filtered, and when the no-load area 211 and the air inlet 111 correspond to each other, the air resistance of the no-load area 211 is smaller, so that the introduced fresh air volume can be effectively improved.

The embodiment of the utility model provides an air purification device, through set up purification cartridge 200 in its wind channel, purification cartridge 200's periphery wall is formed with two at least excess wind districts of arranging along its circumference, and the windage in one of them excess wind district is less than the windage in another excess wind district, and it is rotatory to purify cartridge 200 through the drive of driver part 300 drive to it is corresponding with air intake 111 to switch different excess wind districts selectively. Thus, when the outdoor air quality is poor, the driving part 300 drives the purifying cylinder 200 to rotate, and the overfire air area with large wind resistance and good filtering effect corresponds to the air inlet 111, so as to ensure the quality of the air introduced into the room from the outdoor; when the outdoor air quality is better, the air passing area with poor filtering effect or no filtering effect but with smaller wind resistance corresponds to the air inlet 111, so as to improve the amount of fresh air introduced into the room. The utility model discloses technical scheme, the amount of wind that can the intelligent regulation new trend, the air quality of simultaneous control new trend effectively avoids introducing the problem that the new trend in-process exists that the air output is little and extravagant energy consumption.

In this embodiment, as shown in fig. 8 and 11, the overfire air zone includes the dead space zone 211 and the filtering zone, and the windage resistance of the dead space zone 211 is smaller than that of the filtering zone. That is, the outer peripheral wall of the purification cartridge 200 is formed with at least the dead space 211 and the filtered space, and the dead space 211 and the filtered space are arranged along the circumference of the purification cartridge 200, so that when the driving part 300 drives the purification cartridge 200 to rotate around its axis, it is possible to selectively switch the dead space 211 to correspond to the air inlet 111 or switch the filtered space to correspond to the air inlet 111. Specifically, when outdoor air is good, fresh air does not need to be filtered, so that the no-load area 211 on the purifying cylinder 200 corresponds to the air inlet 111, the fresh air volume can be effectively increased, and the comfort level of indoor fresh air exchange is improved; when the outdoor air quality is not good, the purification cylinder 200 is rotated to enable the filtering area to correspond to the air inlet 111, the fresh air is filtered, and the indoor air quality is effectively guaranteed. This embodiment technical scheme structure is reliable, and intelligent regulation new trend amount of wind makes the travelling comfort of indoor new trend good, can control the effect and the amount of wind that the new trend purified effectively to avoid always purifying the new trend of introducing and lead to the problem that the amount of wind is little and the energy consumption is extravagant.

Further, as shown in fig. 8 and 11, the filtering section includes a first filtering section 212 and a second filtering section 213, and the first filtering section 212 and the second filtering section 213 are arranged along the circumferential direction of the purifying cylinder 200. First filtering area 212 is equipped with first HEPA net, and second filtering area 213 is equipped with the second HEPA net, and the windage of first HEPA net is less than the windage of second HEPA net. It can be understood that first HEPA net is the medium efficiency filter screen, and second HEPA net is high efficiency filter screen, and high efficiency filter screen will be superior to the medium efficiency filter screen to the filter effect of air, but high efficiency filter screen also need obviously to be greater than the medium efficiency filter screen to the resistance of air. When the outdoor air quality is poor, the medium-efficiency filter screen needs to be selected and switched to filter the introduced fresh air; when the outdoor air quality is poor, the introduced fresh air needs to be filtered by selecting and switching the high-efficiency filter screen. Only two filtration levels of filtration zones are provided in this embodiment, although in other embodiments three or more filtration levels of filtration zones may be provided. This embodiment technical scheme, through setting up the filtering area of a plurality of filtration ranks and windage rank, can enrich the variety that the user selected the filtration rank, can promote the amount of wind that introduces the new trend on the one hand, and on the other hand can also ensure the air quality who introduces the new trend.

Further, the overfire air zone further comprises a dehumidification zone 214, and the dehumidification zone 214 is provided with a dehumidification module. It can be understood that when outdoor air is humid in rainy days, the introduced fresh air is heavy, which easily causes indoor humidity and possibly causes mildew phenomenon of the HEPA network, and the service life of the HEPA network is shortened. Therefore, when the outdoor air humidity is large, the purification cylinder 200 is rotated to switch the dehumidification module to correspond to the air inlet 111, and the fresh air is dehumidified by the dehumidification module, so that the outdoor moisture is effectively prevented from being brought into the room.

Further, as shown in fig. 8 and 11, the purification cartridge 200 includes a bracket 220, a plurality of mounting frames arranged along a circumferential direction of the bracket 220 are formed on a circumferential side of the bracket 220, and the first HEPA net, the second HEPA net and the dehumidification module are respectively and correspondingly mounted in the mounting frames.

In this embodiment, as shown in fig. 8 and 11, the outer peripheral wall of the purifying cylinder 200 forms four air passing areas, which are the first filtering area 212, the second filtering area 213, the dehumidifying area 214 and the idle load area 211, so that a user can select to switch the air passing areas with different wind resistances to correspond to the air inlet 111 according to the outdoor air quality and the humidity, thereby effectively increasing the air volume of the introduced fresh air on the premise of ensuring the air quality of the introduced fresh air, and increasing the comfort level after indoor fresh air exchange.

In this embodiment, as shown in fig. 2, 5, 9 and 10, the housing 100 includes a purification cover 110, the purification cover 110 has the air inlet 111, and the purification cartridge 200 is installed in the purification cover 110. In this embodiment, the purge hood 110 has a square structure, but in other embodiments, the purge hood 110 may have other shapes.

As shown in fig. 8, two adjacent sidewalls of the purge hood 110 are respectively provided with a partition 113 therein, the length of the two partitions 113 extends along the width of the purge hood 110, and the width of the two partitions 113 extends along the radial direction of the purge cylinder 200. The air inlet 111 is located between the two partition plates 113, and the driving part 300 is used to drive the purification cartridge 200 to rotate, so that one of the overfire air areas moves between the two partition plates 113. It can be understood that the partition 113 can define a local area of the outer peripheral wall of the purification cartridge 200 through which the fresh air flows, so as to prevent the fresh air from escaping through the gap between the purification cover 110 and the purification cartridge 200, thereby improving the concentration and the air volume of the fresh air flowing through the air area.

In this embodiment, as shown in fig. 8, 9 and 10, the air purification apparatus further includes a primary filter screen 130, and the primary filter screen 130 is located between the air inlet 111 and the purification cartridge 200. It can be understood that, when the driving part 300 drives the purifying cylinder 200 to rotate, the switching no-load area 211 or the dehumidifying area 214 corresponds to the air inlet 111, at this time, the air is not filtered through the HEPA network, and therefore, the technical scheme of the present embodiment firstly performs primary filtering on the fresh air before the fresh air passes through the air area, so as to further ensure the air quality of the fresh air.

Further, as shown in fig. 10, the air inlet 111 has two opposite side walls, both of the side walls are provided with slots 112, and two ends of the primary filter screen 130 are respectively inserted into the two slots 112. So, be connected for dismantling between primary filter screen 130 and the purifying hood 110 to primary filter screen 130 is pull formula structure, and the convenience is changed and is installed primary filter screen 130.

In this embodiment, as shown in fig. 5, 9 and 10, the driving part 300 includes a motor 310, a driving gear 320 and a driven gear 330, the driving gear 320 is connected to a motor shaft of the motor 310, the driven gear 330 is connected to the purifying cartridge 200, the driving gear 320 is engaged with the driven gear 330, and the motor 310 drives the driving gear 320 to rotate and drives the driven gear 330 to rotate, so as to drive the purifying cartridge 200 to rotate. Specifically, the through hole has been seted up to the purge hood 110, and driven gear 330 installs in the one end of purifying cartridge 200, and passes through the through hole stretches out outside the purge hood 110, and driving gear 320 installs in purge hood 110 and sets up in one side of driven gear 330, and gear box 340 is still installed in the outside of purge hood 110, and driving gear 320 and driven gear 330 all install in gear box 340.

As shown in fig. 2 and 4, the housing 100 further includes a fan housing 120, a fan 400 is installed in the fan housing 120, and the fan 400 is located between the purifying cylinder 200 and the air outlet 122. It will be appreciated that the fan 400 is configured to drive air from the inlet 111 into the duct, through the wind region, and out of the outlet 122. The flow of air can be accelerated by the blower 400 to improve the amount of wind and efficiency of introducing fresh air.

Specifically, as shown in fig. 9, the fan housing 120 is provided with a fan air inlet 121, the purification cover 110 is spliced with the fan housing 120, and the air outlet end of the purification cartridge 200 is butted with the fan air inlet 121. Wherein, the periphery of the fan air inlet 121 is provided with a chute, and the air outlet end of the purifying cylinder 200 is rotatably arranged in the chute. Thus, one end of the purifying cylinder 200 is fixedly connected with the purifying cover 110, and the other end of the purifying cylinder 200 is rotatably connected with the fan casing 120, but the fan casing 120 does not interfere with the rotation of the purifying cylinder 200, thereby effectively improving the stability of the rotation of the purifying cylinder 200.

Further, as shown in fig. 2, 4 and 5, a fresh air duct 500 is further installed at the air inlet 111, and the fresh air duct 500 is communicated with the air duct. It can be understood that when the air treatment device is applied to an indoor unit of an air conditioner, one end of the fresh air duct 500 is communicated with the air treatment device, and the other end thereof extends out of the room, so as to introduce outdoor air into the duct. Driven by the fan 400, fresh air firstly enters the air inlet 111 through the fresh air pipe 500, then flows through the primary filter screen 130 and the air passing area of the purification cartridge 200 in sequence, and finally flows out of the air outlet 122.

The embodiment of the utility model provides a machine in air conditioning is still provided, as shown in fig. 1 to 3, machine in the air conditioning include shell 600 with air purification device, air purification device install in shell 600, and new trend export 610 has been seted up to shell 600, air purification device's air outlet 122 and new trend export 610 intercommunication, air purification device's air intake 111 passes through new trend pipe 500 and outdoor intercommunication. The specific structure of the air purification device refers to the above embodiments, and since the air-conditioning indoor unit adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The embodiment of the utility model provides a still provide an air conditioner, the air conditioner includes air condensing units and the indoor set of aforementioned air conditioning, the indoor set of air conditioning passes through refrigerant union coupling with air condensing units. The air conditioner comprises an air conditioner indoor unit, the air conditioner indoor unit comprises an air treatment device, the specific structure of the air treatment device refers to the above embodiments, and the air conditioner adopts all technical schemes of all the above embodiments, so that the air conditioner at least has all beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An air purification apparatus, comprising:

2. The air cleaning apparatus according to claim 1, wherein the air passing region includes an idling region and a filtering region, and a wind resistance of the idling region is smaller than a wind resistance of the filtering region.

3. The air purification device according to claim 2, wherein the filtering area comprises a first filtering area and a second filtering area, the first filtering area and the second filtering area are arranged along the circumferential direction of the purification cylinder, the first filtering area is provided with a first HEPA net, the second filtering area is provided with a second HEPA net, and the wind resistance of the first HEPA net is smaller than that of the second HEPA net.

4. The air purification apparatus of claim 3, wherein the overfire air zone further comprises a dehumidification zone, the dehumidification zone being provided with a dehumidification module.

5. The air cleaning apparatus according to claim 4, wherein the cleaning cartridge includes a holder, a plurality of mounting frames are formed on a peripheral side of the holder in a circumferential direction thereof, and the first HEPA net, the second HEPA net and the dehumidifying module are respectively mounted in the mounting frames correspondingly.

6. The air purification apparatus of claim 1, wherein the housing comprises a purification cover, the purification cover defines the air inlet, and the purification cartridge is mounted in the purification cover.

7. The air cleaning device according to claim 6, wherein two adjacent side walls of the cleaning hood are provided with partition plates, the two partition plates have widths extending in a radial direction of the cleaning cylinder, the air inlet is located between the two partition plates, and the driving member is configured to drive the cleaning cylinder to rotate so that one of the air passing areas moves between the two partition plates.

8. The air purification device of claim 7, further comprising a primary filter screen positioned between the air inlet and the purification cartridge.

9. The air purification device as claimed in claim 8, wherein the air inlet has two opposite side walls, the two side walls are provided with slots, and two ends of the primary filter screen are respectively inserted into the two slots.

10. The air cleaning apparatus as claimed in claim 6, wherein the driving part includes a motor, a driving gear connected to a motor shaft of the motor, and a driven gear installed at one end of the cleaning cylinder, the driving gear being engaged with the driven gear.

11. The air purification apparatus of claim 1, wherein the housing further comprises a fan housing, and a fan is mounted in the fan housing and positioned between the purification cartridge and the outlet.

12. The air purification apparatus of claim 11, wherein the fan housing defines a fan inlet, and wherein the outlet end of the purification cartridge is in abutting engagement with the fan inlet.

13. The air cleaning device as claimed in claim 12, wherein a sliding groove is formed on a periphery of the air inlet of the fan, and the air outlet end of the cleaning cylinder is rotatably installed in the sliding groove.

14. The air cleaning device according to any one of claims 1 to 13, wherein a fresh air pipe is installed at the air inlet, and the fresh air pipe is communicated with the air duct.

15. An indoor unit of an air conditioner, comprising:

the shell is provided with a fresh air outlet;

the air purification device as claimed in any one of claims 1 to 14, wherein the air purification device is installed in the housing, and the air outlet of the air purification device is communicated with the fresh air outlet, and the air inlet of the air purification device is communicated with the outside.

16. An air conditioner comprising an outdoor unit, and further comprising the indoor unit of claim 15, wherein the indoor unit is in communication with the outdoor unit via a refrigerant pipe.