CN112524695A

CN112524695A - Air purification module and air conditioner indoor unit

Info

Publication number: CN112524695A
Application number: CN201910879586.6A
Authority: CN
Inventors: 黄愉太; 蔡序杰
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: 2019-09-17
Filing date: 2019-09-17
Publication date: 2021-03-19

Abstract

The invention discloses an air purification module and an air conditioner indoor unit. The air purification module comprises a shell, a washing piece and a wind wheel support. The shell is provided with a purification air duct. The washing piece is arranged in the purification air channel and used for washing air. The wind wheel support installed in the casing to be located the top of washing piece, the wind wheel support including collect the wind circle and connect in collect the wind circle upper end go out the wind frame, the side that goes out the wind frame is formed with the air outlet, the air outlet will purify wind channel and external environment intercommunication. The centrifugal wind wheel is installed in the air outlet frame, and the lower end of the centrifugal wind wheel extends into the wind collecting ring. The air purification module can reduce the backflow of air blown out from the air outlet to the inside of the air purification module, and ensures that the air purification module has larger air volume.

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 purification module and an air conditioner indoor unit.

Background

With the concern of users about indoor health issues, air conditioning health has become a primary concern for users. An air inlet of an existing air conditioner is generally provided with a screen, so that impurities such as dust and particles can be filtered, but the filtered air is not fresh, and the feeling of freshness and micro-wetness of people in nature is not achieved. In order to meet the requirement of a user on fresh and comfortable feeling, in an exemplary embodiment, a supergravity water washing and purifying device is adopted to purify dust, formaldehyde and TOVC in the air, meanwhile, microorganisms, bacteria and viruses floating in the air can be absorbed, and the purified air can humidify the air, so that the requirement of fresh and micro-humidity is met. However, in this exemplary embodiment, this hypergravity washing purifier usually adopts conventional centrifugal wind wheel to blow out the air from purifying the wind channel, and centrifugal wind wheel's lower extreme and air outlet are comparatively close to, and the air that blows out from the air outlet flows back from the clearance between centrifugal wind wheel's lower extreme and the air outlet easily, leads to the air output to reduce, and under the equal amount of wind condition, the noise obviously becomes big.

Disclosure of Invention

The invention mainly aims to provide an air purification module, which aims to reduce the backflow of air blown out from an air outlet to the inside of the air purification module and ensure that the air purification module has larger air volume.

In order to achieve the purpose, the invention provides an air purification module which comprises a shell, a washing piece and a wind wheel bracket. The shell is provided with a purification air duct. The washing piece is arranged in the purification air channel and used for washing air. The wind wheel support installed in the casing to be located the top of washing piece, the wind wheel support including collect the wind circle and connect in collect the wind circle upper end go out the wind frame, the side that goes out the wind frame is formed with the air outlet, the air outlet will purify wind channel and external environment intercommunication. The centrifugal wind wheel is installed in the air outlet frame, and the lower end of the centrifugal wind wheel extends into the wind collecting ring.

Optionally, the wind collecting ring comprises a wind collecting ring and a wind outlet ring connected to the upper end of the wind collecting ring, and the wind outlet ring is arranged in a gradually expanding shape from bottom to top; the lower end of the centrifugal wind wheel is provided with a wind inducing ring, and the wind inducing ring extends into the wind outlet ring.

Optionally, the air outlet ring comprises a first ring body connected with the upper end of the air collecting ring, and a second ring body connected with the upper end of the first ring body, and the side wall of the first ring body corresponding to the air inducing ring is arranged in a convex arc shape towards the air inducing ring.

Optionally, the side wall of the induced draft ring extends upward to the upper side of the second ring body, the side wall of the second ring body corresponding to the induced draft ring is arranged in a convex arc shape towards the induced draft ring, and the radius of the corresponding circle of the arc surface of the second ring body is smaller than that of the corresponding circle of the arc surface of the first ring body.

Optionally, the lower end of the air outlet ring is connected to the outer wall surface of the air collecting ring, the upper end of the air collecting ring is provided with an air guide ring which extends towards the inner side of the air guiding ring, and the air guide ring is arranged in a tapered manner from bottom to top.

Optionally, the radius of the upper end opening of the wind guide ring is smaller than the radius of the lower periphery of the wind guide ring.

Optionally, the centrifugal wind wheel includes a chassis, an air inducing ring, and a plurality of blades connected to the chassis and the air inducing ring, a wind wheel air outlet formed to blow air toward the air outlet is formed between an upper periphery of the air inducing ring and the chassis, and a height of the wind wheel air outlet is greater than a height of the air outlet frame.

Optionally, the upper edge of the wind wheel outlet is higher than the upper edge of the outlet; and/or the lower edge of the wind wheel air outlet is lower than the lower edge of the air outlet frame.

Optionally, the upper edge of the air outlet is convexly provided with an air guide portion towards the upper edge of the wind wheel air outlet, and the lower surface of the air guide portion is arranged in a convex arc shape downwards.

Optionally, the air-out frame is equipped with a plurality of air outlets, and is a plurality of the air outlet is arranged along its circumference interval.

Optionally, the water washing piece is rotatably installed in the purification air duct, and the water washing piece is suitable for throwing water out along the radial direction of the water washing piece through rotation when the water is sprayed on the water washing piece; the top of washing piece still is equipped with the purification subassembly, the purification subassembly is used for purifying filtration air.

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

The invention also provides an air-conditioning indoor unit which comprises an air heat exchange module and an air purification module. The air heat exchange module comprises a shell and a heat exchange device, the shell is provided with a heat exchange air inlet, a heat exchange air outlet and a heat exchange air channel communicated with the heat exchange air inlet and the heat exchange air outlet, and the heat exchange device is arranged on the heat exchange air channel. The air purification module is connected to the lower end of the air heat exchange module.

The air purification module comprises a shell, a washing piece and a wind wheel support. The shell is provided with a purification air duct. The washing piece is arranged in the purification air channel and used for washing air. The wind wheel support installed in the casing to be located the top of washing piece, the wind wheel support including collect the wind circle and connect in collect the wind circle upper end go out the wind frame, the side that goes out the wind frame is formed with the air outlet, the air outlet will purify wind channel and external environment intercommunication. The centrifugal wind wheel is installed in the air outlet frame, and the lower end of the centrifugal wind wheel extends into the wind collecting ring.

According to the technical scheme, the wind wheel support is arranged on the shell, the centrifugal wind wheel is arranged on the air outlet frame of the wind wheel support, and the centrifugal wind wheel is arranged in the wind collecting ring of the wind wheel support, so that the lower end of the centrifugal wind wheel is far away from the air outlet, a negative pressure belt is not easily formed between the lower end of the centrifugal wind wheel and the lower periphery of the air outlet, airflow blown out of the air outlet does not easily flow back from a gap between the lower end of the centrifugal wind wheel and the lower periphery of the air outlet, and accordingly, large air volume is ensured. Therefore, under the condition of the same air volume, the noise is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of an embodiment of an air purification module according to the present invention;

FIG. 3 is a schematic view of the centrifugal rotor of FIG. 2 mounted on a rotor support;

FIG. 4 is a schematic view of the centrifugal rotor and rotor support of FIG. 3, shown in an exploded view;

FIG. 5 is a front view of the centrifugal rotor and rotor support assembly of FIG. 3;

FIG. 6 is a cross-sectional view of the assembled structure of FIG. 5 taken along line I-I;

FIG. 7 is a cross-sectional view of the assembled structure of FIG. 5 taken along line II-II;

FIG. 8 is an enlarged view taken at A in FIG. 7;

fig. 9 is a graph comparing the air quantity-noise of the air cleaning module of the present invention with that of the conventional air cleaning module.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Air purification module	1402	Second ring body
110	Shell body	1403	Air outlet
				111	Purifying air duct	1404	Air guide part
120	Washing piece	150	Centrifugal wind wheel
				130	Purification assembly	151	Chassis
140	Wind wheel support	152	Wind-guiding ring
				141	Wind collecting ring	153	Fan blade
142	Air outlet frame	1501	Wind wheel air outlet
				143	Cover plate	160	Driving motor
1411	Wind collecting ring	170	Water application member
				1412	Air outlet ring	180	Water supply tank
1413	Wind guide ring	101	Gap
				1401	A first ring body	200	Air heat exchange module

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. Further, the expression "and/or" as used throughout is intended to include three juxtapositions, exemplified by "A and/or B" and including either scheme A or scheme B or schemes in which both scheme A and scheme B are satisfied.

In addition, if there is a description of "first", "second", etc. in an embodiment 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides an air purification module 100, and the air purification module 100 can be applied to an indoor unit of an air conditioner, particularly to a floor type indoor unit of an air conditioner. The air purification module 100 is used for purifying air and sending the purified air to the indoor environment, so as to improve the air quality of the indoor environment.

Referring to fig. 2 to 4, in an embodiment of the air purification module 100 of the present invention, the air purification module 100 includes a housing 110, a washing element 120, a wind wheel bracket 140, and a centrifugal wind wheel 150. Wherein the housing 110 has a purge air duct 111. The water washing member 120 is provided in the purge air duct 111, and is configured to wash the air passing through the purge air duct 111. The wind wheel bracket 140 is installed on the housing 110 and located above the washing member 120, the wind wheel bracket 140 includes a wind collecting ring 141 and a wind outlet frame 142 connected to the upper end of the wind collecting ring 141, an air outlet 1403 is formed on the side surface of the wind outlet frame 142, and the air outlet 1403 communicates the purifying air duct 111 with the external environment. The centrifugal wind wheel 150 is installed in the air outlet frame 142, and the lower end of the centrifugal wind wheel 150 extends into the air outlet channel of the air collecting ring 141. The centrifugal wind wheel 150 is used to drive air to enter from the air purifying duct 111 and then blow out through the air outlet 1403.

Specifically, the housing 110 is substantially cylindrical extending in the vertical direction, and for example, the housing 110 may be square or circular. The purge air duct 111 in the housing 110 may extend in the up-down direction, respectively. An air inlet is formed at the bottom of the housing 110 or on a side wall near the bottom, and the air inlet is communicated with the lower end of the purification air duct 111.

The wind wheel bracket 140 is installed at the upper end of the housing 110 through the wind collecting ring 141, and extrudes and intensively guides the air flow blown out from the purge air duct 111 to the air outlet frame 142 of the wind wheel bracket 140 through the wind collecting ring 141. The air outlet frame 142 may be provided with one or more air outlets 1403, and the air outlets 1403 are used for blowing the airflow blown out from the purified air duct 111 to the indoor environment. For example, when the air outlet frame 142 is provided with one air outlet 1403, the air outlet 1403 can be disposed in a semi-annular or annular shape to realize annular air outlet; when the air outlet frame 142 is provided with the plurality of air outlets 1403, the plurality of air outlets 1403 are arranged along the circumference of the air outlet frame 142, and annular air outlet can be achieved.

When the air purification module 100 purifies air, the air flows from bottom to top in the purification air duct 111, and when the air passes through the washing member 120, the air is washed and purified by the washing member 120, so that impurities such as dust, bacteria and organic matters in the air are removed. The air passing through the washing unit 120 continues to flow upward into the air outlet frame 142 of the wind wheel bracket 140, and is finally blown out from the air outlet 1403 by the centrifugal wind wheel 150. Because the lower extreme of centrifugal wind wheel 150 stretches into in wind-collecting ring 141 to make the lower extreme of centrifugal wind wheel 150 comparatively keep away from air outlet 1403, be difficult for forming the negative pressure area between the lower extreme of centrifugal wind wheel 150 and air outlet 1403 lower periphery, thereby the air current that blows out from air outlet 1403 is difficult for flowing back from the clearance 101 between the lower extreme of centrifugal wind wheel 150 and air outlet 1403 lower periphery, and then ensures to have great amount of wind.

According to the technical scheme, the wind wheel support 140 is mounted on the shell 110, the centrifugal wind wheel 150 is mounted on the air outlet frame 142 of the wind wheel support 140, and the centrifugal wind wheel 150 is mounted in the wind collecting ring 141 of the wind wheel support 140, so that the lower end of the centrifugal wind wheel 150 is far away from the air outlet 1403, a negative pressure belt is not easily formed between the lower end of the centrifugal wind wheel 150 and the lower periphery of the air outlet 1403, airflow blown out of the air outlet 1403 is not easily reflowed from the gap 101 between the lower end of the centrifugal wind wheel and the lower periphery of the air outlet 1403, and accordingly, large air volume is ensured. Therefore, under the condition of the same air volume, the noise is improved.

Referring to fig. 4, according to the above embodiment, the centrifugal wind wheel 150 is a backward centrifugal wind wheel. The centrifugal wind wheel 150 includes a base plate 151, a wind-guiding ring 152, and a plurality of blades 153 connecting the base plate 151 and the wind-guiding ring 152. The wind-guiding ring 152 is arranged in a gradually expanding cylinder shape from bottom to top, and a wind wheel air outlet 1501 blowing air towards the air outlet 1403 is formed between the upper periphery of the wind-guiding ring 152 and the base plate 151 (see fig. 7 for the wind wheel air outlet 1501).

In order to drive the centrifugal wind wheel 150 to rotate, the air purification module 100 further includes a driving motor 160 mounted on the wind wheel bracket 140, and a motor shaft of the driving motor 160 is connected to the centrifugal wind wheel 150 to drive the centrifugal wind wheel 150 to rotate. The driving motor 160 is mounted to the cover plate 143 of the rotor support 140. The motor shaft of the driving motor 160 is connected to the centrifugal rotor 150 through the cover plate 143.

When the centrifugal wind wheel 150 is assembled on the wind wheel bracket 140, the driving motor 160 is fixed on the cover plate 143, and then the centrifugal wind wheel 150 is connected with the motor shaft of the driving motor 160, so that the centrifugal wind wheel 150 and the cover plate 143 are connected into a whole; and finally, the cover plate 143 and the centrifugal wind wheel 150 are integrated into a whole and are arranged at the top of the air outlet frame 142, and then the cover plate 143 is fixed on the air outlet frame 142 by adopting a screw structure.

Referring to fig. 5 and 6, the specific number of the fan blades 153 is not limited herein, and the fan blades can be optimally designed according to the specific air volume requirement. The plurality of blades 153 of the centrifugal wind wheel 150 are sequentially arranged at intervals along the circumference thereof and are inclined towards the same direction.

Referring to fig. 4 and fig. 7, based on any of the above embodiments, the wind collecting ring 141 includes a wind collecting ring 1411 and a wind outlet ring 1412 connected to the upper end of the wind collecting ring 1411, the wind guiding ring 152 at the lower end of the centrifugal wind wheel 150 extends into the wind outlet ring 1412, and the wind blown out from the wind wheel wind outlet 1501 is guided out to the wind outlet 1403 by the wind outlet ring 1412.

Specifically, a gap 101 is formed between the inner wall surfaces of the wind guide 152 and the wind collecting ring 141 to prevent the wind guide 152 from interfering with the wind outlet ring 1412 when the centrifugal wind wheel 150 rotates at a high speed during operation. However, the airflow blown out of the purge air duct 111 (the purge air duct 111 may refer to fig. 2) may be bounced to the gap 101 to generate noise.

Referring to fig. 7 and 8, in the present embodiment, in order to prevent the airflow blown out from the purge duct 111 from flowing into the gap 101, the lower end of the air outlet ring 1412 is connected to the outer wall surface of the air collecting ring 1411, the upper end of the air collecting ring 1411 is provided with an air guiding ring 1413 extending upward toward the inner side of the air collecting ring 1411, and the air guiding ring 1413 is disposed in a tapered shape from bottom to top. When the airflow blown out from the purge air duct 111 is pressed by the wind collecting ring 1411 and is blown upwards to the wind guiding ring 1413, the airflow is further pressed by the wind guiding ring 1413 and guided to the inner side of the wind guiding ring 152 of the centrifugal wind wheel 150, so that the airflow is prevented from flowing into the gap 101, and the airflow noise is prevented from flowing.

Further, the opening radius of the upper end of the wind guide ring 1413 is smaller than that of the lower end of the wind guide ring 152. As shown in the figure, R₁Expressed as the opening radius (2R) of the upper end of the wind-guiding ring 1413₁The diameter of the opening at the upper end of the wind guide ring 1413); r₂Indicated as the radius of the opening at the lower end of the inducer ring 152 (2R @)₂The diameter of the opening at the lower end of the inducer 152). Then, there should be R₁＜R₂The sidewall of the air guiding ring 1413 and the air guiding ring 152 have a distance Δ R in the radial direction₂-R₁And DeltaR > 0. The design ensures that the air guide ring 1413 can smoothly guide the air blown out from the purified air duct 111 to the inner side of the air guide ring 152.

Referring to fig. 7 and 8, in an embodiment, it is further considered that when the centrifugal wind wheel 150 rotates at a high speed, the gap 101 is relatively in a negative pressure state, and air blown out from the air outlet 1403 may flow back from the gap 101 to the inside of the air purification module 100, resulting in a reduction in air volume. Therefore, in order to reduce the backflow of the outlet air from the gap 101 to the inside of the outlet channel, the outlet ring 1412 is disposed in a gradually expanding shape from the bottom to the top and is disposed in a shape following the shape of the wind-guiding ring 152 of the centrifugal wind wheel 150, so that the gap 101 formed by enclosing the two is narrow, the wind resistance is large, the outlet air is difficult to flow back from the gap 101 to the inside of the outlet channel, and the outlet air volume is ensured to be large.

Further, the air outlet ring 1412 comprises a first ring body 1401 connected with the upper end of the air collecting ring 1411, and a second ring body 1402 connected with the upper end of the first ring body 1401, and the side wall of the first ring body 1401 corresponding to the air inducing ring 152 is arranged in a convex arc shape facing the air inducing ring 152. That is, the first ring body 1401 of the outlet ring 1412 is protruded toward the gap 101 to further narrow the width of the gap 101, so that the difficulty of the outlet air passing through the gap 101 and flowing back into the air purification module 100 is greatly increased, and the return flow of the outlet air is further reduced.

In addition, the opening of the gap 101 near the outlet 1403 can be reduced to reduce the backflow of the outlet air. Therefore, referring to fig. 7 and 8, the side wall of the wind-guiding ring 152 extends upward to the top of the second ring 1402, the side wall of the second ring 1402 corresponding to the wind-guiding ring 152 is disposed in a convex arc shape facing the wind-guiding ring 152, and the radius of the arc-shaped circle of the second ring 1402 is smaller than the radius of the arc-shaped circle of the first ring 1401.

As shown in fig. 8, R₃The radius of the circle corresponding to the cambered surface of the first ring body 1401 (where O is the radius of the arc surface of the outlet ring 1412)₁Expressed as the center of the circle corresponding to the arc of the first ring body 1401); r₄The radius of the circle corresponding to the arc surface of the second ring 1402 (where O is₂Indicated as the center of the circle to which the arc of the second ring 1402 corresponds). Then, there should be R₄＜R₃. So designed that the second ringThe side wall of the body 1402 is closer to the wind-guiding ring 152 than the first ring body 1401, so that the opening of the gap 101 near one end of the wind outlet 1403 is reduced, the difficulty of the wind outlet air entering the gap 101 is increased, and the backflow amount of the wind outlet air is effectively reduced.

Furthermore, since the lower edge of the wind-guiding ring 152 forms the lower edge of the wind wheel outlet 1501, the air blown out from the lower edge of the wind-guiding ring 152 to the wind wheel outlet 1501 passes through the upper side of the second ring 1402, and then flows along the arc-shaped surface of the second ring 1402, and is smoothly guided to the air outlet 1403 by the second ring 1402, thereby improving the air outlet effect.

With continued reference to fig. 7 and 8, based on any of the above embodiments, in general, since the centrifugal wind wheel 150 generates less noise during operation, a person skilled in the art will generally not consider the noise reduction problem of the centrifugal wind wheel 150. However, after the centrifugal wind wheel 150 is mounted on the wind wheel support 140, the wind wheel air outlet 1501 of the centrifugal wind wheel 150 is adapted to the air outlet 1403 of the wind wheel support 140, which may affect the noise of the centrifugal wind wheel 150.

In an embodiment, in order to reduce the problem of the fitting between the wind wheel wind outlet 1501 of the centrifugal wind wheel 150 and the wind wheel wind outlet 1403 on the wind wheel support 140, the influence on the noise of the centrifugal wind wheel 150 is optionally caused, and the height of the wind wheel wind outlet 1501 of the centrifugal wind wheel 150 is greater than the height of the wind outlet 1403 of the wind outlet frame 142. Note that the height of wind wheel outlet 1501 should be referred to as the vertical distance from the upper edge of wind wheel outlet 1501 to the lower edge of wind wheel outlet 1501. Likewise, the height of the outlet 1403 should also refer to the vertical distance from the upper edge of the outlet 1403 to the lower edge of the outlet 1403.

In fig. 8: h₁Indicated as the height, H, of the rotor outlet 1501 of the centrifugal rotor 150₂Indicated as the height of the outlet 1403 of the outlet frame 142. That is, H₁≥H₂. In the process that the centrifugal wind wheel 150 blows wind from the wind wheel air outlet 1501 to the air outlet 1403 of the air outlet frame 142, the airflow is extruded and blown outwards, the air pressure of the extruded airflow is large, the air supply distance is long, and the airflow is not easy to return from the edgeFlow, and thus noise reduction.

Further, after the centrifugal wind rotor 150 is assembled to the wind rotor bracket 140, the upper edge of the wind rotor outlet 1501 is higher than the upper edge of the wind outlet 1403. Specifically, the outer periphery of the bottom disk 151 of the centrifugal wind rotor 150 forms an upper edge of the wind rotor outlet 1501. That is, the outer peripheral edge of the chassis 151 is higher than the upper edge of the air outlet 1403, and there is a height difference Δ H between the position of the outer peripheral edge of the chassis 151 and the upper edge of the air outlet 1403₁(as shown in figure 1). After the air is blown out from the wind wheel, the air is blown out by downward extrusion of the upper edge of the air outlet 1403, so that upward diffusion of the air can be reduced, and the air supply distance is prolonged.

Here, in order to avoid direct collision between air blown from the upper edge of the wind wheel outlet 1501 and the upper edge of the wind wheel outlet 1403, a wind guide portion 1404 is provided in a protruding manner on the upper edge of the wind wheel outlet 1403 toward the upper edge of the wind wheel outlet 1501, and a lower surface of the wind guide portion 1404 is provided in a downward protruding arc shape. Due to the design, when air blown out from the upper edge of the wind wheel air outlet 1501 encounters the air guide part 1404, the air flows along the surface of the air guide part 1404 and then is guided to the air outlet 1403 by the air guide part 1404, so that the air is prevented from directly colliding with the upper edge of the air outlet 1403, and the noise of air collision is reduced.

Further, the lower edge of the wind wheel air outlet 1501 is lower than the lower edge of the air outlet 1403 of the air outlet frame 142. Specifically, the upper peripheral edge of the inducer 152 of the centrifugal wind wheel 150 forms the lower edge of the wind wheel outlet 1501. That is, the upper periphery of the air inducing ring 152 is lower than the lower edge of the air outlet 1403, and there is a height difference Δ H between the position of the upper periphery of the air inducing ring 152 and the upper edge of the air outlet 1403₂(as shown in fig. 8). When air is blown out from the wind wheel, the air is pressed upward by the upper edge of the air outlet 1403.

In the above embodiments, the terms "above" and "below" should both be taken to mean height contrast in the vertical direction. Due to Delta H₁And Δ H₂Meanwhile, in the process that the centrifugal wind wheel 150 blows wind from the wind wheel air outlet 1501 to the air outlet 1403 of the air outlet frame 142, the centrifugal wind wheel can better blow the windThe air flow extrusion blows out outwards, so that the air pressure of the extruded air flow is larger, the air outlet volume is larger, the air supply distance is longer, the air flow is not easy to flow back from the edge, and the noise is reduced.

As shown in fig. 9, the air purification module of the present invention and the conventional air purification module were tested under the same conditions for a plurality of times, and a graph of the air volume-noise variation as shown in fig. 9 was obtained by plotting the test data. As can be seen from the figure, under the condition of the same air quantity, the noise of the air purification module is reduced by about 1.5dB to 2dB compared with the noise of the conventional air purification module.

Referring to fig. 2, in any of the above embodiments, the water washing unit 120 is adapted such that when water is supplied to the water washing unit 120, the water washing unit 120 uses the water to wash air passing through the water washing unit 120, so as to adsorb impurities such as dust, bacteria, and organic matters in the air. There are various types of the water wash 120. Such as but not limited to: wet film, spray pipe, rotary disk capable of rotating to throw water, etc.

Referring to FIG. 2, in one embodiment, the washing member 120 is a rotatable spinning disk. The water washing member 120 is rotatably installed at the purification air duct 111, and the water washing member 120 is adapted to spin water radially by rotation when water is sprayed on the water washing member 120. Specifically, the water washing unit 120 includes a rotary frame and a screen disposed on the rotary frame, and the screen may be disposed to surround the rotary frame in a cylindrical shape or may be horizontally laid on a plane (virtual plane) perpendicular to the rotation axis.

When the water washing member 120 is driven to rotate at a high speed, the water supplied to the water washing member 120 is thrown out in a radial direction, and when the thrown water meets the screen, the water is cut into fine water droplets by the screen, and the water droplets are thrown out toward the outer edge by the centrifugal force. Meanwhile, the centrifugal wind wheel 150 drives the air to flow from the purifying air duct 111 to the top, when the air current meets the washing part 120, the air current is collided by a plurality of water drops thrown out by the washing part 120 at a high speed, and organic matters such as tiny dust and formaldehyde in the air current are dissolved in the water drops and then taken away by the water drops, so that the air purifying effect is achieved, and the purified clean air is blown into the room from the air outlet 1403.

It is considered that when the linear velocity of the outer edge of the washing member 120 is too small, the speed of the water thrown out by the washing member 120 is small, the air purification effect is poor, and when the linear velocity of the outer edge of the washing member 120 is too large, the energy consumption of the rotation of the washing member 120 is large and the noise generated is large, and the improvement of the air purification effect by continuously increasing the linear velocity of the outer edge of the washing member 120 is small.

Therefore, in the present embodiment, when the air purification module 100 is required to operate, the linear velocity of the outer edge of the water washing member 120 is 10m/s to 45 m/s. Such as but not limited to: 10m/s, 15m/s, 18m/s, 20m/s, 25m/s, 30m/s, 35m/s, 38 m/s. The linear velocity of the outer edge of the washing member 120 is limited to 10m/s to 45m/s, so that the velocity of water thrown out of the washing member 120 is ensured to be high, and noise generated by the rotation of the washing member 120 is small, so that the water can be supplied to the washing member 120, the air purification module 100 further includes a water applying member 170 disposed above the washing member 120, and the water applying member 170 is communicated with the water supply tank 180 through a water pump, so that the water in the water supply tank 180 can be supplied to the washing member 120. The water application member 170 may be a spray head, a spray pipe, a water leakage plate, or the like, which is not particularly limited herein.

Further, a purifying assembly 130 is disposed above the washing member 120, and the purifying assembly 130 is used for purifying the filtered air. The purification assembly 130 may include one or more of a formaldehyde purification device, a dust removal device, an anion generation device, and a water filter.

Referring to fig. 1, the present invention further provides an indoor unit of an air conditioner. The indoor unit of the air conditioner comprises an air heat exchange module 200 and an air purification module 100. Wherein the air heat exchange module 200 is installed at the upper end of the air purification module 100 through an intermediate partition. The air heat exchange module 200 comprises a shell and a heat exchange device, wherein the shell is provided with a heat exchange air inlet, a heat exchange air outlet and a heat exchange air channel communicated with the heat exchange air inlet and the heat exchange air outlet, and the heat exchange device is arranged on the heat exchange air channel. The specific structure of the air purification module refers to the above embodiments, and since the air conditioner indoor unit adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and are not repeated here.

In one embodiment, the heat exchange device comprises an indoor heat exchanger and an indoor fan. The indoor fan is used for driving air to enter the heat exchange air channel from the heat exchange air inlet, and after the heat exchange air channel exchanges heat with the indoor heat exchanger, the air is driven by the indoor fan to be blown to the indoor from the heat exchange air outlet, so that refrigeration or heating is realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An air purification module, characterized in that the air purification module comprises:

a housing having a purge air duct;

the washing piece is arranged on the purification air channel and is used for washing air;

the wind wheel bracket is arranged on the shell and is positioned above the washing piece, the wind wheel bracket comprises a wind collecting ring and an air outlet frame connected to the upper end of the wind collecting ring, an air outlet is formed in the side surface of the air outlet frame, and the air outlet communicates the purification air channel with the external environment; and

the centrifugal wind wheel is installed in the air outlet frame, and the lower end of the centrifugal wind wheel extends into the wind collecting ring.

2. The air purification module of claim 1, wherein the wind-collecting ring comprises a wind-collecting ring and a wind-discharging ring connected to the upper end of the wind-collecting ring, and the wind-discharging ring is arranged in a gradually expanding shape from bottom to top; the lower end of the centrifugal wind wheel is provided with a wind inducing ring, and the wind inducing ring extends into the wind outlet ring.

3. The air purification module of claim 2, wherein the air outlet ring comprises a first ring body connected to an upper end of the air collecting ring, and a second ring body connected to an upper end of the first ring body, and a side wall of the first ring body corresponding to the air inducing ring is convexly and arcuately arranged toward the air inducing ring.

4. The air purification module of claim 3, wherein the side wall of the air inducing ring extends upward to above the second ring body, the side wall of the second ring body corresponding to the air inducing ring is arranged in a convex arc shape towards the air inducing ring, and the radius of the corresponding circle of the arc surface of the second ring body is smaller than that of the corresponding circle of the arc surface of the first ring body.

5. The air purification module of claim 2, wherein the lower end of the air outlet ring is connected to the outer wall surface of the air collecting ring, the upper end of the air collecting ring is provided with an air guiding ring which extends towards the inner side of the air guiding ring, and the air guiding ring is arranged in a tapered shape from bottom to top.

6. The air purification module of claim 5, wherein the radius of the upper end opening of the wind-directing ring is smaller than the radius of the lower periphery of the wind-directing ring.

7. The air purification module according to any one of claims 1 to 6, wherein the centrifugal wind wheel comprises a chassis, an air inducing ring, and a plurality of blades 153 connecting the chassis and the air inducing ring, a wind wheel air outlet blowing towards an air outlet 1403 is formed between an upper periphery of the air inducing ring and the chassis, and a height of the wind wheel air outlet is greater than a height of the air outlet frame.

8. The air purification module of claim 7, wherein an upper edge of the wind wheel outlet is higher than an upper edge of the outlet; and/or the lower edge of the wind wheel air outlet is lower than the lower edge of the air outlet frame.

9. The air purification module of claim 8, wherein the upper edge of the air outlet is convexly provided with an air guiding portion towards the upper edge of the wind wheel air outlet, and the lower surface of the air guiding portion is arranged in a downward convex arc shape.

10. The air purification module of any one of claims 1 to 6, wherein the air outlet frame is provided with a plurality of air outlets, and the plurality of air outlets are arranged at intervals along the circumference of the air outlet frame.

11. The air purification module as claimed in any one of claims 1 to 6, wherein the water washing member is rotatably mounted in the purification air duct, and the water washing member is adapted to spin water radially out by rotation when water is sprayed on the water washing member; the top of washing piece still is equipped with the purification subassembly, the purification subassembly is used for purifying filtration air.

12. The air purification module of claim 11, wherein the linear velocity of the outer edge of the water washing member is 10m/s to 45m/s when the air purification module is in operation.

13. An air conditioning indoor unit, characterized in that, the air conditioning indoor unit includes:

the air heat exchange module comprises a shell and a heat exchange device, the shell is provided with a heat exchange air inlet, a heat exchange air outlet and a heat exchange air channel for communicating the heat exchange air inlet and the heat exchange air outlet, and the heat exchange device is arranged on the heat exchange air channel; and

an air purification module as claimed in any one of claims 1 to 12; the air purification module is connected to the lower end of the air heat exchange module.