CN112413731B - Air purification module and air conditioner indoor unit - Google Patents

Abstract

The invention discloses an air purification module and an air conditioner indoor unit. The air purification module comprises a shell, a rotating body and a water filtering cover. The housing has a purge air duct. The rotating body is rotatably installed in the purification air duct, and is adapted to throw water outward by rotating when water is sprayed onto the rotating body. The water filtering cover is arranged above the rotating body, the outer periphery of the upper end of the water filtering cover is connected with the shell, the side wall of the water filtering cover inclines towards the rotating axis of the rotating body, and when air passes through the water filtering cover, the water filtering cover filters water in the air. The air purification module can reduce the occurrence of the situation that the gap of the water filtering cover is blocked.

Description

Air purification module and air conditioner indoor unit

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air purifying module and an air conditioner indoor unit.

Background

The air conditioner purifying module is generally provided with a rotatable rotating body in the purifying air duct, and the rotating body is suitable for driving the rotating body to rotate by a driving motor to throw out water along the radial direction of the rotating body when water is sprayed on the rotating body, so that the air flow passing through the purifying air duct is washed and purified. To avoid that the rotor flows upwards with the water of the air flow, and wets and damages other components above the rotor, a water filtering structure is usually arranged above the rotor. However, such conventional drainage structures are generally provided in a flat plate shape, and water accumulated on the drainage structures is difficult to be discharged intensively. When the water is accumulated more, the gaps of the water filtering structure are easily blocked, so that the ventilation quantity is attenuated.

The foregoing is provided merely to facilitate an understanding of the principles of the invention and is not intended to represent an admission that such art is prior art, even though it was not believed by the applicant to be deficient and was written in the background.

Disclosure of Invention

The invention mainly aims to provide an air purification module which aims at reducing the occurrence of the situation that the gap of a water filtering cover is blocked.

In order to achieve the above object, the present invention provides an air purification module, which includes a housing, a rotating body, and a water filtering cover. The housing has a purge air duct. The rotating body is rotatably installed in the purification air duct, and is adapted to throw water outward by rotating when water is sprayed onto the rotating body. The water filtering cover is arranged above the rotating body, the outer periphery of the upper end of the water filtering cover is connected with the shell, the side wall of the water filtering cover inclines towards the rotating axis of the rotating body, and when air passes through the water filtering cover, the water filtering cover filters water in the air.

Optionally, the air purification module further comprises a support frame arranged below the water filtering cover, and the water filtering cover is installed on the support frame and connected to the shell through the support frame.

Optionally, the air purification module further comprises a driving motor arranged above the water filtering cover, and a motor shaft of the driving motor penetrates through the water filtering cover to be connected with the rotating body.

Optionally, the drainage cover is gradually reduced from top to bottom, a containing cavity is formed on the inner side of the drainage cover, and the driving motor is contained in the containing cavity.

Optionally, the air purification module further comprises a motor frame for installing the driving motor, wherein the motor frame is integrally connected with the supporting frame by adopting a connecting piece and then is connected to the shell by the connecting piece.

Optionally, the motor frame includes the confession the motor cabinet of driving motor installation, the motor cabinet will the drainage cover press in the support frame, the motor cabinet with the position of drainage cover contact is run through and is equipped with the drainage groove, is used for with the lateral wall drainage of drainage cover down.

Optionally, a through hole for the motor shaft to pass through is formed in the bottom of the water filtering cover, a space is formed between the periphery of the through hole and the motor shaft, and the drainage groove is communicated with the through hole.

Optionally, the supporting frame comprises a bottom ring, a top ring and a supporting bar for connecting the bottom ring and the top ring; the water filtering cover is provided with a side wall which is annularly arranged, a downward flanging which extends inwards from the lower periphery of the side wall, and an upward flanging which extends outwards from the upper periphery of the side wall; the upper flanging is connected with the top ring, the lower flanging is connected with the bottom ring, and the side wall is supported by the supporting bars.

Optionally, an included angle formed by the side wall of the water filtering cover and the cross section of the purifying air duct is not smaller than 5 degrees.

Optionally, an included angle formed by the side wall of the water filtering cover and the cross section of the purifying air duct is not less than 30 degrees and not more than 60 degrees.

Optionally, the water filtering cover is arranged in a conical shape, or a funnel shape, a bowl shape or a hollow round table shape.

Optionally, the water filtering cover is made of a mesh material with gaps, wherein the mesh material is a metal mesh, or a nylon mesh, or a wet film.

Optionally, the air purification module further comprises a fan device arranged above the water filtering cover and a purification device arranged between the fan device and the water filtering cover, and the purification device comprises any one or a combination of a plurality of IFD dust collection components, HEPA (high efficiency particulate air) nets, formaldehyde removal components and anion generation components.

Optionally, when the air purification module works, the linear speed of the outer edge of the rotating body is 10 m/s-45 m/s.

The invention also provides an air conditioner indoor unit which comprises a shell, an indoor heat exchanger, an indoor fan, an air purifying module and a control unit. The shell is provided with a purification air inlet, a purification air outlet, a heat exchange air inlet, a heat exchange air outlet and a heat exchange air channel for communicating the heat exchange air inlet with the heat exchange air outlet. The indoor heat exchanger and the indoor fan are arranged in the heat exchange air duct.

The air purification module comprises a shell, a rotating body and a water filtering cover. The housing has a purge air duct. The rotating body is rotatably installed in the purification air duct, and is adapted to throw water outward by rotating when water is sprayed onto the rotating body. The water filtering cover is arranged above the rotating body, the outer periphery of the upper end of the water filtering cover is connected with the shell, the side wall of the water filtering cover inclines towards the rotating axis of the rotating body, and when air passes through the water filtering cover, the water filtering cover filters water in the air. The air purification module is arranged in the shell, and the purification air channel of the air purification module is communicated with the purification air inlet and the purification air outlet.

According to the technical scheme, the water filtering cover is arranged in the purification air duct and positioned above the rotating body, and the side wall of the water filtering cover is inclined towards the rotating axis of the rotating body, so that the water stagnation resistance of the side wall of the water filtering cover is smaller. When the air purifies modularized air, the water filtering cover filters small water drops in the air flow, and the small water drops flow downwards along the inclined direction of the side wall, finally drop downwards under the action of gravity, and the water dropped on the rotating body can be reused by the rotating body. Therefore, the water filtering cover is not easy to remain more water, and further the clearance of the water filtering cover is smooth, and the air supply flow smoothly passes through the water filtering cover and is blown upwards.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a top view of an embodiment of an air purification module of the present invention;

FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an exploded schematic view of the air treatment module of FIG. 2;

FIG. 5 is a schematic view of the motor housing, the water filter housing and the support frame of FIG. 4 assembled together;

FIG. 6 is a schematic view of the overall structure of FIG. 5 from another perspective;

fig. 7 is an assembled schematic view of the overall structure of fig. 5.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				100	Air purification module	144	Through hole
110	Shell body	150	Driving motor
				111	Purifying air duct	151	Motor shaft
112	Air duct inlet	160	Motor frame
				113	Air duct outlet	161	Motor base
120	Rotating body	1611	Drainage groove
				130	Water filtering cover	162	Bracket rod
131	Side wall	170	Blower fan device
				132	Down flanging	180	Purifying device
133	Upturn	181	IFD dust collection assembly
				140	Supporting frame	182	Negative ion generating assembly
141	Bottom ring	191	Spray head
				142	Top ring	192	Water tank
143	Support bar

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

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The invention provides an air purification module which can be applied to an air conditioner indoor unit, in particular to a floor type air conditioner indoor unit. The air purification module is used for purifying air and sending the purified air to the indoor environment, so that the air quality of the indoor environment is improved.

Referring to fig. 1 and 2, in an embodiment of an air purification module 100 of the present invention, the air purification module 100 includes a housing 110, a rotating body 120, and a filter cover 130. The housing 110 has a purge duct 111, and the air flows from bottom to top in the purge duct 111. The rotating body 120 is rotatably installed to the purge air duct 111, and the rotating body 120 is adapted to throw water outward by rotating when water is sprayed onto the rotating body 120. The water filtering cover 130 is disposed in the purification air duct 111 and is disposed at an upper side of the rotating body 120, the water filtering cover 130 is disposed above the rotating body 120, an outer periphery of an upper end of the water filtering cover 130 is connected to the housing 110, a sidewall 131 (sidewall 131 may refer to fig. 7) of the water filtering cover 130 is inclined toward a rotation axis of the rotating body 120, and when air passes through the water filtering cover 130, the water filtering cover 130 filters water in the air.

Specifically, the housing 110 is generally cylindrical extending in the up-down direction, for example, the housing 110 may be square, circular, or the like. The purge air duct 111 in the housing 110 also extends vertically accordingly. The bottom or side wall 131 near the bottom of the housing 110 is formed with a duct inlet 112, and the duct inlet 112 communicates with the lower end of the purge duct 111. The top or side wall 131 near the top of the housing 110 is formed with a duct outlet 113, and the duct outlet 113 communicates with the upper end of the purge duct 111. The air flow can enter the purification air duct 111 from the air duct inlet 112, flow from the purification air duct 111 from bottom to top, and finally flow out through the air duct outlet 113.

When the air purification module 100 purifies air, the air flow flows out from bottom to top in the purification air duct 111; at the same time, the rotator 120 rotates at a high speed to throw out the water falling on the rotator at a high speed, the thrown-out water is thinned into countless water drops with extremely small particle sizes, and the water drops adsorb impurities in the air flow to be taken away, so that the super-gravity water throwing and air purifying effect is realized. Such as purifying air from fine particles, pollen, biological bacteria, volatile organic compounds (e.g., formaldehyde, benzene), etc. In addition, the water drops are mixed into the air, and the effect of humidifying the air can be achieved.

In the above-mentioned process of purifying air, after the small water droplets thrown out by the rotating body 120 meet with the air flow in the purifying air duct 111, the air flow carries part of the small water droplets upward. Since the water filtering cover 130 is further disposed above the rotating body 120, the water filtering cover 130 has a plurality of holes, so that when the air flow carrying the small water droplets flows through the water filtering cover 130, the air flow directly passes through the holes of the water filtering cover 130, and the small water droplets are intercepted in the water filtering cover 130. And the sidewall 131 of the water filtering cover 130 is inclined toward the rotation axis of the rotation body 120, so that the viscous resistance of the sidewall 131 of the water filtering cover 130 is small, and the small water droplets on the sidewall 131 of the water filtering cover 130 flow downwards along the inclined direction of the sidewall 131, and finally drop downwards under the action of gravity.

In the technical scheme of the invention, the water filtering cover 130 is arranged in the purifying air duct 111, the water filtering cover 130 is positioned above the rotating body 120, and the side wall 131 of the water filtering cover 130 is inclined towards the rotating axis of the rotating body 120, so that the water stagnation resistance of the side wall 131 of the water filtering cover 130 is smaller. When the air purification module 100 purifies air, the water filtering cover 130 filters the small water droplets in the air flow, and makes the small water droplets flow downwards along the inclined direction of the side wall 131, and finally drops downwards under the action of gravity, so that the water dropped onto the rotating body 120 can be reused by the rotating body 120. This ensures that a large amount of water is not easily left in the water filter cover 130, and further ensures that the gaps of the water filter cover 130 are smooth, and the air flow smoothly passes through the water filter cover 130 and is blown out upward.

Referring to fig. 1 and 2, in an embodiment, the air purification module 100 further includes a fan device 170 disposed above the filter cover 130, and a purification device 180 disposed between the fan device 170 and the filter cover 130, wherein the purification device 180 includes any one or more of an IFD dust collection assembly 181, a HEPA mesh, a formaldehyde removal assembly, and a negative ion generation assembly 182. That is, the fan device 170 and the purifying device 180 are both located above the water filtering cover 130, so that air passes through the fan device 170 and the purifying device 180 after filtered by the water filtering cover 130, and the damp fan device 170 and the purifying device 180 are prevented from being damaged by damp.

Referring to fig. 1 and 2, the air cleaning module 100 further includes a spray head 191 located under the rotator 120, the spray head 191 being adapted to be connected with the water tank 192 to spray water in the water tank 192 to the rotator 120 to supply water to the rotator 120. When the rotary body 120 rotates, the water sprayed by the spray head 191 can be thrown out at a high speed along the radial direction. The rotational speed at which the rotary body 120 rotates is not limited in practice. However, it is considered that when the linear velocity of the outer edge of the rotating body 120 is too small, the velocity of water thrown out of the rotating body 120 is small, the air purifying effect is poor, and when the linear velocity of the outer edge of the rotating body 120 is too large, the energy consumption of the rotation of the rotating body 120 is large, the noise generated is large, and the increase of the linear velocity of the outer edge of the rotating body 120 is continued to be small, so that the air purifying effect is improved.

Therefore, in the present embodiment, the linear velocity of the outer edge of the rotary body 120 is required to be 10m/s to 45m/s when the air cleaning module 100 is operated. Such as, but not limited to: 10m/s, 15m/s, 18m/s, 20m/s, 25m/s, 30m/s, 35m/s, 38m/s. The linear velocity defining the outer edge of the rotating body 120 is 10m/s to 45m/s, so that the speed of water thrown out of the rotating body 120 can be ensured to be high, and noise generated by the rotation of the rotating body 120 is small.

Referring to fig. 2 and 3, as θ is shown as a cross section of the sidewall 131 of the filter housing 130 and the purge air duct 111 in fig. 3, it is apparent that θ should be less than 90 ° because the sidewall 131 of the filter housing 130 is inclined. However, if θ is too small, the side wall 131 of the drainage cover 130 has a large resistance, and the drainage effect is poor, which is disadvantageous for drainage.

In view of this, in one embodiment, the sidewall 131 of the filter housing 130 directs the intercepted small water droplets downward, optionally, the included angle between the side wall 131 of the water filtering cover 130 and the cross section of the purifying air duct 111 is not less than 5 degrees, namely, θ is more than or equal to 5 degrees and less than 90 degrees. Thus, the side wall 131 of the water filtering cover 130 has a larger inclination angle, which is beneficial to downward diversion. θ may be, but is not limited to, 10 °,15 °,20 °,30 °, 40 °, 50 °, 60 °, 70 °, and the like.

It is also contemplated that if θ is too large (e.g., approaching 90 °), the effective water blocking area and ventilation area of the sidewall 131 of the drainage cover 130 are reduced, respectively, which is detrimental to water blocking or ventilation. Thus, alternatively, the side wall 131 of the filter housing 130 makes an angle of not less than 30 DEG and not more than 60 DEG, that is, 30 DEG-theta-60 DEG with the cross section of the purge air duct 111. Therefore, the side wall 131 of the water filtering cover 130 has a better inclination angle, which is convenient for downward diversion, and ensures that the side wall 131 of the water filtering cover 130 has a larger effective water blocking area and ventilation area. θ may be, but is not limited to, 35 °, 38 °, 40 °,45 °, 50 °, 55 °, 60 °, and the like.

Referring to fig. 4, regarding the number of the water filtering hoods 130, the number may be appropriately designed according to the amount of water filtering. The filter housing 130 may be one or two or more. When there are a plurality of the water filtering hoods 130, the plurality of the water filtering hoods 130 are arranged up and down. Correspondingly, a plurality of supporting frames 140 may be provided, and the plurality of supporting frames 140 are respectively in one-to-one correspondence with the plurality of water filtering covers 130 so as to support the corresponding water filtering covers 130.

Referring to fig. 2 to 4, in accordance with any of the above embodiments, the water filtering cover 130 has a structure with a gap. In view of this, the water filtering cover 130 may be made of a mesh material having voids, which is a metal mesh, or a nylon mesh, or a wet film. When the water filtering cover 130 is made of a metal mesh, the water filtering cover 130 has a large strength, and a supporting structure may not be required. But if other net structures are used, their strength may be insufficient to maintain their own shape for a long time to deform.

Referring to fig. 2 to 4, to solve the above-mentioned problems, the air purification module 100 further includes a support frame 140 disposed below the water filtering cover 130, and the water filtering cover 130 is mounted on the support frame 140 and connected to the housing 110 through the support frame 140. The support frame 140 is used for strongly supporting the water filtering cover 130, so that the water filtering cover 130 is ensured not to deform under the action of gravity of water after water filtering to influence the use.

Referring to fig. 2 to 4, in an embodiment, the air purification module 100 further includes a driving motor 150 disposed above the water filtering cover 130, and a motor shaft 151 of the driving motor 150 is connected to the rotating body 120 through the water filtering cover 130 to drive the rotating body 120 to rotate.

If the driving motor 150 and the water filtering cover 130 are separately disposed in the up-down direction, a large longitudinal space of the air treatment module is occupied, which is not advantageous for miniaturization of the air treatment module. To solve this problem, the water filtering cover 130 is gradually reduced from top to bottom, and a cavity is formed at the inner side of the water filtering cover 130, and the driving motor 150 is accommodated in the cavity.

As for the manner in which the water filtering cover 130 is tapered from top to bottom, there may be various ways. Such as, but not limited to: the water filtering cover 130 may be tapered, or funnel-shaped, bowl-shaped, or hollow truncated cone-shaped. By such design, the cavity for accommodating the driving motor 150 can be formed in the water filtering cover 130, so that the longitudinal space of the air treatment module additionally occupied by the driving motor 150 can be reduced, and the air treatment module can be miniaturized. Of course, in other embodiments, the filter cover 130 may be tapered from bottom to top (similar to a bamboo hat).

Theoretically, the driving motor 150 may be mounted on the supporting frame 140. However, it is considered that the driving motor 150 and the filter cover 130 may interfere with each other when they are attached to and detached from the same support frame 140. Referring to fig. 2 to 4, to avoid this, the air cleaning module 100 further includes a motor frame 160 for mounting the driving motor 150, and the motor frame 160 is integrally connected to the support frame 140 by a connection member and then connected to the housing 110 by the connection member.

Referring to fig. 5 to 7, optionally, the motor frame 160 includes a motor base 161 for mounting the driving motor 150, and the motor base 161 presses the water filter cover 130 to the supporting frame 140 to limit the water filter cover 130 from moving upwards, so as to improve the mounting stability of the water filter cover 130. Since the motor base 161 is pressed against the filter cover 130, when water flows down from the sidewall 131 of the filter cover 130 to a position between the sidewall 131 and the motor base 161, the motor base 161 may prevent the water from continuing to flow downwards to be discharged. In view of this, a drainage groove 1611 may be formed at a position where the motor base 161 contacts the filter cover 130, so as to drain the water flowing down the sidewall 131 of the filter cover 130.

Referring to fig. 5 to 7, further, a through hole 144 is formed at the bottom of the filter cover 130 for the motor shaft 151 to pass through, and a drainage groove 1611 is communicated with the through hole 144 to drain water downwards through the through hole 144. However, when the intercepted water of the sidewall 131 of the filter housing 130 is discharged to 144, the discharged water may contact the motor shaft 151 and flow down the motor shaft 151 into the bearing connecting the motor shaft 151 and the rotating body 120. In order to avoid this, a space is preferably formed between the through-hole 144 and the motor shaft 151 such that the periphery of the through-hole 144 is away from the motor shaft 151, and thus the water flow passing through the drainage groove 1611 will drop down from the periphery of the through-hole 144 without contacting the motor shaft 151.

Referring to fig. 5 to 7, various designs are possible for the shape and structure of the support 140 according to any of the above embodiments. In this embodiment, to avoid the wind shielding of the support 140, the support 140 includes a bottom ring 141, a top ring 142, and a supporting bar 143 connecting the bottom ring 141 and the top ring 142, so that the surface area of the support 140 is smaller, which is beneficial to ventilation.

Further, to facilitate the assembly of the drainage cover 130 with the supporting frame 140, the drainage cover 130 has a sidewall 131 provided in a ring shape, a lower flange 132 extending inward from a lower circumference of the sidewall 131, and an upper flange 133 extending outward from an upper circumference of the sidewall 131, wherein the upper flange 133 is connected with the top ring 142, the lower flange 132 is connected with the bottom ring 141, and the sidewall 131 is supported by the supporting bars 143.

Further, in order to facilitate the assembly of the motor frame 160 and the support frame 140, the motor frame 160 further includes a plurality of support rods 162 disposed around the motor base 161 and extending obliquely upward, and the upper ends of the support rods 162, the upper flange 133 of the drainage cover 130, and the top ring 142 of the support frame 140 are sequentially connected to the housing 110 by connecting members (not shown). As for the structure of the connecting member, the connecting member may be a screw, a connecting rod, or the like.

Referring to fig. 1 to 3, the present invention further provides an indoor unit of an air conditioner. The air conditioner indoor unit includes a cabinet and an air purifying module (see fig. 4). Wherein, the casing is equipped with purification air intake and purification air outlet. The specific structure of the air purification module refers to the above embodiments, and because the floor-type air conditioner indoor unit adopts all the technical solutions of all the embodiments, the floor-type air conditioner indoor unit also has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

In an embodiment, the air purification module is installed in the casing, and the purification air channel of the air purification module communicates the purification air inlet and the purification air outlet. The purifying air inlet can be communicated with the indoor environment to purify the indoor air into clean air and then convey the clean air back to the indoor environment. The purifying air inlet can be communicated with the outdoor environment to purify the outdoor air into clean air and then convey the clean air to the indoor environment.

In an embodiment, the casing is further provided with a heat exchange air inlet, a heat exchange air outlet and a heat exchange air duct positioned above the purification air duct, wherein the heat exchange air duct communicates the heat exchange air inlet with the heat exchange air outlet; the floor type air conditioner indoor unit further comprises an indoor heat exchanger and an indoor fan which are arranged in the heat exchange air duct.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (9)

1. An air purification module, the air purification module comprising:

the shell is provided with a purification air duct;

The rotary body is rotatably arranged on the purification air duct and is suitable for throwing out water through rotation when water is sprayed on the rotary body; and

The water filtering cover is arranged above the rotating body, the outer periphery of the upper end of the water filtering cover is connected with the shell, the side wall of the water filtering cover is inclined towards the rotating axis of the rotating body, and when air passes through the water filtering cover, the water filtering cover filters water in the air;

The air purification module further comprises a support frame arranged below the water filtering cover, and the water filtering cover is arranged on the support frame and connected with the shell through the support frame;

The air purification module further comprises a driving motor arranged above the water filtering cover, and a motor shaft of the driving motor penetrates through the water filtering cover to be connected with the rotating body;

the water filtering cover is arranged in a tapered shape from top to bottom, a containing cavity is formed in the inner side of the water filtering cover, and the driving motor is contained in the containing cavity;

the air purification module further comprises a motor frame for installing the driving motor, wherein the motor frame is integrally connected with the supporting frame by adopting a connecting piece and then is connected to the shell through the connecting piece;

The motor frame comprises a motor seat for mounting the driving motor, the motor seat presses the water filtering cover on the supporting frame, and a drainage groove is penetrated at the contact position of the motor seat and the water filtering cover and used for downwards draining water flowing down the side wall of the water filtering cover;

The bottom of the water filtering cover is provided with a through hole for the motor shaft to pass through, a space is formed between the periphery of the through hole and the motor shaft, and the drainage groove is communicated with the through hole.

2. The air purification module of claim 1, wherein the support frame comprises a bottom ring, a top ring, and a support bar connecting the bottom ring and the top ring; the water filtering cover is provided with a side wall which is annularly arranged, a downward flanging which extends inwards from the lower periphery of the side wall, and an upward flanging which extends outwards from the upper periphery of the side wall;

The upper flanging is connected with the top ring, the lower flanging is connected with the bottom ring, and the side wall is supported by the supporting bars.

3. An air cleaning module according to any one of claims 1 to 2, wherein the side wall of the filter housing forms an angle of not less than 5 ° with the cross section of the cleaning duct.

4. The air purification module of claim 3, wherein the sidewall of the filter housing forms an angle with the cross section of the purge air duct of no less than 30 ° and no more than 60 °.

5. An air cleaning module according to any one of claims 1 to 2, wherein the water filter housing is provided in a conical shape, or a funnel shape, a bowl shape or a hollow truncated cone shape.

6. An air cleaning module according to any one of claims 1 to 2, wherein the water filter cover is made of a mesh material having voids, the mesh material being a metal mesh, or a nylon mesh, or a wet film.

7. The air purification module of any one of claims 1 to 2, further comprising a fan device disposed above the water filter housing, and a purification device disposed between the fan device and the water filter housing, the purification device comprising any one or more of an IFD dust collection assembly, a HEPA mesh, a formaldehyde removal assembly, and a negative ion generation assembly.

8. An air cleaning module according to any one of claims 1 to 2, wherein the linear velocity of the outer edge of the rotating body is 10 m/s to 45 m/s when the air cleaning module is in operation.

9. An air conditioning indoor unit, the air conditioning indoor unit comprising:

the shell is provided with a purification air inlet and a purification air outlet, and is also provided with a heat exchange air inlet, a heat exchange air outlet and a heat exchange air duct which is used for communicating the heat exchange air inlet with the heat exchange air outlet, and the heat exchange air duct is positioned above the purification air duct;

the indoor heat exchanger and the indoor fan are arranged in the heat exchange air duct; and

An air purification module according to any one of claims 1 to 8; the air purification module is arranged in the shell, and the purification air channel of the air purification module is communicated with the purification air inlet and the purification air outlet.