CN110594884A - Mute air purification device - Google Patents

Abstract

A silent air purification device comprises a shell and a purification module arranged in the shell, wherein an air inlet and an air outlet are formed on the shell, the purification module comprises a fan, the fan sucks external air to be purified into the shell through the air inlet, the air is purified by the purification module and then is discharged outwards through the air outlet, an air inlet channel is formed between the purification module and the air inlet, an air outlet channel is formed between the purification module and the air outlet, and a silencer is arranged on at least one of the air inlet channel and the air outlet channel.

Description

Mute air purification device

Technical Field

The invention relates to the technical field of air purification, in particular to a mute air purification device.

Background

With the development of society, the quality of air is increasingly poor, and PM2.5 particles, large-particle dust and the like in the air gradually affect the health of people. Like a toilet, especially a public toilet, the air environment is worried about, various particles in the air affect the health of people, and a large amount of odor molecules such as indole, skatole, hydrogen sulfide, ammonia gas and the like are mainly contained, so that the toilet is smelly. Most of the existing toilets only adopt the exhaust fan for ventilation and air exchange, and the foul odor in the toilet is discharged to the outside, so that the deodorization effect is not obvious, and people feel uncomfortable due to the fact that the exhaust fan mostly has quite large noise.

Disclosure of Invention

In view of this, a low-noise and high-efficiency silent air purification device is provided.

The utility model provides a silence air purification device, includes the shell and sets up the purification module in the shell, be formed with air inlet and gas outlet on the shell, purification module includes the fan, the fan is by the air inlet with outside air suction to the shell that needs purify, and the air is outwards discharged by the gas outlet after purifying module's purification, be formed with the air inlet between purification module and the air inlet, and be formed with the exhaust duct between the gas outlet, at least one of them is provided with the silencer with the exhaust duct.

Furthermore, purification module and air outlet looks interval are connected with the tuber pipe between the two, the tuber pipe constitutes closed air outlet duct, the silencer is the porous silencing pot that sets up in the tuber pipe.

Further, purification module and air outlet looks interval are connected with the tuber pipe between the two, the tuber pipe constitutes closed air duct, the middle part evagination of tuber pipe is formed with the cavity, and the junction of cavity and tuber pipe is provided with the pipeline of closed cavity, the pipeline is provided with a plurality of through-hole intercommunication cavities and tuber pipes that run through along the axial, the cavity and the pipeline of opening the through-hole constitute resonance silencer jointly.

Furthermore, purification module and air outlet looks interval form open air outlet between the two, the silencer sets up in the air outlet, including porous silencing tube and gyration noise elimination spare, gyration noise elimination spare sets up between porous silencing tube and air outlet, is formed with the crooked sound channel of turning back in the gyration noise elimination spare.

Furthermore, the rotary noise elimination piece is of a symmetrical structure, symmetrical sound channels are formed inside the rotary noise elimination piece, sound channel inlets are formed on two opposite sides of the rotary noise elimination piece respectively, a shared sound channel outlet is formed in the middle of the rotary noise elimination piece, and the sound channel outlet is opposite to the air outlet.

Further, the shell and the purification module are spaced, an open type air inlet duct is formed at the interval between the shell and the purification module, and the open type air inlet duct forms a silencer.

Further, the shell and the purification module are arranged at intervals, the silencer further comprises a silencing cavity arranged in the interval between the shell and the purification module, the silencing cavity forms a closed air inlet duct, and an inlet opposite to an air inlet of the shell and an outlet opposite to an air inlet of the purification module are formed in the silencing cavity.

Furthermore, the silencer also comprises at least one pipeline arranged in the end part of the silencing cavity, the pipeline is provided with a plurality of through holes which penetrate along the axial direction, and the end part of the silencing cavity and the pipeline with the through holes jointly form the resonance silencer.

Further, the pipeline is a plurality of pipelines which are arranged at intervals at the end part in the silencing cavity.

Further, still be provided with separation module and water tank in the shell, separation module includes an air exhauster, the air after purification module purifies is taken out to the gas outlet outside discharge through the air exhauster, separation module sets up side by side with purification module, the exhaust passage is formed between separation module and air outlet, purification module still includes fixed connection along with the synchronous pivoted atomizing disk of rotor on the rotor of fan, the water tank sets up in separation module and purification module below for supply water to atomizing disk, be formed with radial recess on the atomizing disk, the water of water tank rotates along with the rotor on atomizing disk, outwards spills along the recess wall and forms the water smoke, water smoke mixes with the air that needs to purify in order to air-purifying.

Further, one side of fan air-out sets up an absorbate, one side that the air exhauster was intake sets up another absorbate, the absorbate is honeycomb structure, including the multilayer adsorption layer that piles up mutually, each adsorption layer forms and runs through the aperture, the aperture of two adjacent adsorption layers staggers mutually, and water smoke and the air after the purification flow through the absorbate under the effect of fan, air exhauster, form the water film when the water smoke passes through the absorbate, and the air after the purification is purified once more when flowing through the water film.

Compared with the prior art, the mute air purification device provided by the invention has the advantages that when external air is sucked for purification, the silencer is arranged in the air inlet duct and/or the air outlet duct of the shell of the mute air purification device to eliminate noise, the whole device runs quietly and efficiently, the device can be suitable for any places needing air quality improvement, and the device is worthy of wide popularization and application.

Drawings

Fig. 1 is a schematic view of a silent air purification device according to an embodiment of the present invention.

Fig. 2 is a schematic view of a water mist purification module of the silent air purification device shown in fig. 1.

Fig. 3 is a cross-sectional view of the purification module shown in fig. 2.

Fig. 4 is a schematic view of an atomizer of the purification module shown in fig. 2.

Fig. 5 is a top view of the atomizing disk of the atomizer shown in fig. 4.

Fig. 6 is a cross-sectional view of the atomizing disk of fig. 5.

Fig. 6a is an enlarged view of the dotted circle in fig. 6.

Fig. 7 is a schematic view of an absorbent member of the decontamination module of fig. 2.

Fig. 8 is a schematic view of a single absorbent layer of the absorbent member shown in fig. 7.

Fig. 9 is a schematic view of another embodiment of an absorbent member.

Fig. 10 is a schematic view of a water mist separation module of the silent air purification device shown in fig. 1.

Fig. 11 is a schematic view of a muffling cartridge of the silent air purification device shown in fig. 1.

Fig. 12 is a schematic view of a second embodiment of the silent air cleaning apparatus according to the present invention.

Fig. 13 is a schematic view of a third embodiment of a silent air purification device according to the present invention.

Fig. 14 is a schematic view of a rotary muffler member of the silent air cleaning apparatus shown in fig. 13.

Fig. 15 is a schematic view of a fourth embodiment of the silent air cleaning apparatus of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. One or more embodiments of the present invention are illustrated in the accompanying drawings to provide a more accurate and thorough understanding of the disclosed embodiments. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.

As the name suggests, the mute air purification device is used for purifying air, can effectively remove PM2.5 particles, large-particle dust and the like in the air, and can be applied to any places needing to improve the air quality, such as office buildings, indoor air purification of common families and the like. More mainly, the mute air purification device of the invention can be applied to a toilet, and can eliminate unpleasant odor molecules in the air of the toilet: indole, skatole, hydrogen sulfide, ammonia, and the like. Wherein, the indole and the skatole have unpleasant odor of the feces, and the strong and durable diffusibility, which is a main factor for generating the odor; hydrogen sulfide has the smell of smelly eggs and is extremely toxic; ammonia has a strong irritating odour and is all somewhat unpleasant. The odor molecules have different characteristics, wherein the melting point of indole is 52 ℃, the melting point of skatole is 93-96 ℃, and the indole and skatole are solid at normal temperature and are insoluble in water; the hydrogen sulfide and ammonia gas are gaseous at normal temperature and are easily soluble in water. The mute air purification device utilizes water mist to purify and deodorize air according to the characteristics of odor molecules, and improves the air quality in a toilet.

Fig. 1 shows an embodiment of a silent air purification device 100 of the present invention, which includes a housing 10, and a water mist purification module 20 and a water mist separation module 30 disposed in the housing 10. The housing 10 is in a flat square box shape, and an air inlet 12 and an air outlet 14 are formed on the housing 10. Air to be purified from the outside enters the housing 10 through the air inlet 12, passes through the water mist purification module 20, is purified by interaction with water mist, passes through the water mist separation module 30, and is separated from the water mist and discharged from the air outlet 14. The purification module 20 and the separation module 30 are arranged side by side left and right in the housing 10, the purification module 20 is close to one side of the air inlet 12, the separation module 30 is close to one side of the air outlet 14, air to be purified flows through the purification module 20 from top to bottom, and then purified clean air flows through the separation module 30 from bottom to top. It should be understood that the purification module 20 and the separation module 30 can be stacked up and down, and the present invention is not limited to the side-by-side arrangement of the present embodiment.

In this embodiment, the air inlet 12 is formed on a side plate of the casing 10 and is disposed near the bottom of the casing 10; the air outlet 14 is formed on the other side plate opposite to the housing 10 and is disposed near the top of the housing 10. Preferably, a certain distance is formed between the purification module 20 and the side plate and the top plate of the housing 10, an open air inlet duct 19 is formed between the housing 10 and the purification module 20, and after the air to be purified outside enters the housing 10 through the air inlet 12, the whole internal space of the housing 10 is used as the air inlet duct, and in the process of flowing towards the purification module 20, the sound waves are repeatedly reflected and refracted in the housing 10 and interfere with each other to achieve the effect of noise elimination, so that the open air inlet duct 19 itself constitutes a silencer, thereby greatly reducing the noise of the air intake of the whole purification device 100.

Preferably, a water tank 40 is disposed at the bottom of the housing 10, and a water pump 42 and a water discharge pump 44 are disposed in the water tank 40, wherein the water pump 42 pumps water in the water tank 40 to the purification module 20, so that the water mist can act on the air to be purified, and odor molecules, PM2.5 particles, large dust particles, etc. in the air can be carried. The mist carrying odor molecules, PM2.5 particles, large particle dust, etc. is condensed and then returned to the water tank 40, and is discharged to the outside by the drain pump 44. Preferably, a water inlet pipe 16 is connected to a sidewall of the housing 10, and the water inlet pipe 16 is connected to an external water source, such as a water supply pipe, for filling the water tank 40. The side wall of the housing 10 is connected to a water outlet pipe 18 connected to a drain pump 44. When the invention is used for air purification in a toilet, the air inlet 12 can be connected with the toilet through an air pipe and the like, and odor is directly sucked from the toilet to avoid the diffusion of the odor in the toilet; the water outlet pipe 18 can be connected with a flushing pipe of the toilet, and the discharged water is reused for flushing the toilet.

The purification modules 20 are stacked in sequence along the flow direction of the air flow, the air is purified once after passing through one purification module 20, and after multiple purification of the purification modules 20, odor molecules, PM2.5 particles, large particle dust and the like in the air are basically and completely removed. In this embodiment, the purification modules 20 are stacked in the vertical direction, and may be arranged in the horizontal direction, inclined at a certain angle, and the like in other embodiments. The number of the purification modules 20 can be 3, 5, or 10, and the specific number can be designed according to the actual application, for example, the number of the purification modules 20 can be increased properly in the environment with poor air quality such as a public washroom; in contrast, in an environment where the air quality is relatively acceptable, such as a home toilet, the number of the purification modules 20 can be appropriately reduced; the purification module 20 may be single even in an environment where air quality is relatively good, such as an office building, a general room, or the like.

Referring to fig. 2 and 3, each purification module 20 includes a blower 22, an atomizing disk 24, and an absorbent member 26. In this embodiment, the fan 22 is an axial fan, which generates negative pressure to form an airflow flowing axially downward when rotating. The air inlet of the fan 22 of the topmost purification module 20 is used as the air inlet of the whole purification module 20, and the air to be purified outside is sucked in through the air inlet 12 and the air inlet duct 19. Referring to fig. 4, the blower 22 includes a stator 220 and a rotor 222 rotatable relative to the stator 220. The rotor 222 includes a hub 224 and rotor blades 226 extending outwardly from an outer circumferential surface of the hub 224. The stator 220 has a plurality of stator blades 228 extending inward from the inner periphery of the outer frame, and the stator blades 228 are located behind the rotor blades 226 in the airflow direction, such as the stator blades 228 are located right below the rotor blades 226 in this embodiment. The stator blades 228 and the rotor blades 226 have opposite bending directions, and the airflow is driven by the rotor blades 226 to flow spirally downward and is changed in flow direction by the stator blades 228.

Referring to fig. 4-6, the atomizing disk 24 is fixedly disposed on the hub 224 of the rotor 222 and rotates with the rotor 222 at a high speed. In this embodiment, the atomizing disk 24 is a disk structure having a diameter corresponding to the hub 224. The upper surface of the atomizing disk 24 is a concave surface with a low center and a high edge, and can bear a certain amount of water. The water pump 42 pumps water from the water tank 40 and delivers the water to the atomizing disk 24, in this embodiment, the end of the water discharge pipe 43 of the water pump 42 extends to the center of the atomizing disk 24, and directly delivers the water to the center of the atomizing disk 24. It should be understood that in other embodiments, the atomizing disk 24 may be disposed below the fan 22 as long as it can rotate with the rotor 222 of the fan 22. As shown in fig. 6, the atomizing disk 24 has a plurality of radial grooves 25 formed on its upper surface, and each groove 25 extends radially outward from the center of the atomizing disk 24 to its edge. Radially outward, each groove 25 is an arc-shaped slot with a tilted tail.

When the atomizing disk 24 rotates with the rotor 222, as shown in fig. 6a, the water forms a resultant force F in an inclined downward direction under the dual actions of its own gravity g and a rotating centrifugal force F, so that the water is sprayed outward along the groove wall to form a water mist. The formed water mist changes the flow direction and flows downwards along with the outside air to be purified under the negative pressure of the fan 22. In the flowing process, the flow direction of the water mist and the air to be purified is repeatedly changed, the water mist and the air to be purified are fully mixed, so that most of odor molecules, PM2.5 particles, large-particle dust and the like in the air to be purified are transferred and dissolved in the water mist, and the air from which most of odor molecules, PM2.5 particles and large-particle dust are removed is changed into cleaner air. The water mist carrying most of the odor molecules, PM2.5 particles, and large particle dust, and the cleaner air from which most of the odor molecules, PM2.5 particles, and large particle dust have been removed continue to flow downward through the absorbent member 26 by the fan 22 and its own weight. In this embodiment, as shown in fig. 7-8, the absorbent member 26 is a honeycomb structure, and includes a plurality of absorbent layers 27 stacked one on top of the other, which are two layers in this embodiment, but may be three or more layers in other embodiments. Each absorbent layer 27 has a large number of small holes 270 formed therein, the small holes 270 preferably being in the shape of regular hexagons, extending vertically through the absorbent layer 27 in the direction of airflow, i.e., in the up-down direction. The apertures 270 of the adjacent upper and lower absorbent layers 27 are staggered when they are stacked, such that a vertex of a hexagonal aperture 270 of an upper absorbent layer 27 is aligned with the center of a hexagonal aperture 270 of a lower absorbent layer 27. Thus, irregular holes are formed at the boundary of the two adjacent absorption layers 27, when water mist passes through the irregular holes, a water film is formed, and when the relatively clean air passes through the small holes 270, a small amount of residual odor molecules, PM2.5 particles, large-particle dust and the like in the air are quickly absorbed by the water film, so that the air is further purified, and clean air is obtained.

Fig. 9 shows another embodiment of an absorbent member 26 'which is also composed of a plurality of absorbent layers 27' stacked one on another, each absorbent layer 27 'having a large number of apertures 270' formed therein, the apertures 270 'of adjacent front and rear absorbent layers 27' being offset when they are stacked. The difference of the embodiment is that: the apertures 270 ' are angled and the apertures 270 ' of adjacent absorbent layers 27 ' are angled in opposite directions. Thus, the path of the air flowing through the small hole 270 ' of the absorption piece 26 ' is increased, and the air is repeatedly turned in the process of flowing through the absorption piece 26 ', so that the air can be fully mixed with the water mist, and the air can be better purified. While the apertures 270, 270 'in the above embodiments have a hexagonal configuration, it will be appreciated that in other embodiments the apertures 270, 270' may have any other shape, such as circular, square, polygonal, etc., or may even be irregular.

In the invention, the fan 22 of the water mist purification module 20 and the atomizer formed by the atomizing disc 24, the fan 22 drives the atomizing disc 24 to rotate rapidly, so that water is sprayed and atomized and is fully mixed with airflow sucked by the rotation of the fan 22, odor molecules, PM2.5 particles, large-particle dust and the like in air are transferred, and the air mist purification device can achieve good air purification effect, and has simple structure and low cost; the honeycomb absorbent 26 forms a water film, and can absorb odor molecules, PM2.5 particles, and the like in the air flowing therethrough, and can achieve a good air purification effect, and is also simple in structure and low in cost. In the above embodiment, the atomizer of the "fan + atomizing disk" and the honeycomb absorbent member 26 are used in combination to form the water mist purification module 20, which has a particularly excellent air purification effect and is more suitable for places with serious air problems, such as public toilets.

It should be understood that in some places where the air quality is still acceptable, such as office buildings, family houses, etc., the atomizer of the "blower + atomizing disk" of the present invention can be used alone to purify air without the need to incorporate the honeycomb-type absorber 26; or the honeycomb type absorption piece 26 can be independently used for purifying air without matching with an atomizer of 'fan + atomizing disk'; or the atomizer of the fan and the atomizing disc can be matched with a traditional absorption piece, such as synthetic fiber filter cotton or stainless steel metal filter cotton; or the honeycomb absorbing piece 26 can be used together with a traditional atomizer for air purification, so that the mechanism is properly simplified and the cost is saved while a good air purification effect is achieved.

After the air to be purified passes through the water mist purification module 20, odor molecules, PM2.5 particles, large particle dust, and the like in the air are almost completely transferred into the water mist, the water mist with the odor molecules, PM2.5 particles, large particle dust, and the like transferred thereon gradually condenses on the absorption member 26, drops downward and flows back into the water tank 40, and the odor molecules, PM2.5 particles, large particle dust, and the like in the water mist flow into the water tank 40 along with the condensed water. In addition, the clean air with almost completely removed odor molecules, PM2.5 particles, large particle dust, etc. is separated from the mist by the separation module 30 and discharged to the outside through the air outlet 14.

Specifically, as shown in fig. 10, the separation module 30 includes an exhaust blower 32, a filter screen 34, an absorbent member 36, and an ultraviolet lamp 38. The suction fan 32 is a negative pressure fan, the air outlet of which is connected with the air outlet 14 of the housing 10 through an air pipe 33, and the suction fan 32 generates negative pressure when operating, so that clean air and a small amount of water mist which is in the future and condensed flow from bottom to top. Preferably, the air pipe 33 serves as a closed air outlet duct, and a silencer 35 is disposed inside the air pipe. As shown in fig. 11, in the present embodiment, the muffler 35 is a porous muffling cylinder, which is a cylinder, and a large number of small holes 350 are formed on the cylinder wall, when clean air passes through the small holes 350 of the muffling cylinder 35, part of sound waves are reflected by the cylinder wall, and the reflected sound waves interfere with the incident sound waves, so as to achieve the muffling effect, and greatly reduce the noise of the whole purifying device 100. Thus, the noise of air inlet and outlet of the silent air purification device 100 of the present invention is greatly reduced, and the comfort of use is greatly improved, especially when used for indoor air purification in common homes and offices.

The absorption member 36 is preferably of a honeycomb structure having the same structure as the absorption member 26 and disposed facing the water tank 40, and the mist drawn upward by the suction fan 32 forms a water film at the absorption member 36, and the clean air is further purified while passing through the absorption member 36, and most of the drawn mist is condensed at the absorption member 36 and drops downward and flows back into the water tank 40. The filter 34 is disposed near the exhaust fan 32, and is preferably made of filter cotton, etc., to further filter the mist and clean air, thereby forming completely clean air. The ultraviolet lamp 38 is disposed on an exhaust path of the clean air for sterilizing and disinfecting the clean air. In this embodiment, the ultraviolet lamp 38 is disposed between the absorbing member 36 and the filter screen 34, and the clean air flows through the absorbing member 36, the ultraviolet lamp 38 and the filter screen 34 in sequence under the action of the exhaust fan 32, and is finally discharged from the air outlet, so that the air-conditioner is sterile, odorless and dustless.

The mute air purification device 100 is provided with the atomizer of a fan and an atomizing disc and/or the honeycomb absorption piece 26, water mist and/or water film is generated to transfer and dissolve odor molecules, PM2.5 particles, large-particle dust and the like in the air, after the mute air purification device works for a certain time, the drainage pump 44 is started to drain the water with the odor molecules, the PM2.5 particles, the large-particle dust and the like in the water tank 40 into a sewer, and the odor molecules, the PM2.5 particles, the large-particle dust and the like in the water are discharged to the sewer along with the water, so the odor molecules, the PM2.5 particles, the large-particle dust and the like are not diffused into the air again and are not remained in the purification device 100, the air is fundamentally purified. In addition, the silent air purification device 100 of the invention forms an open air inlet duct 19, and the porous silencing cylinder 35 is arranged in the closed air outlet duct 33, so that sound waves are continuously refracted and reflected, and then are interfered with each other to silence, thereby greatly reducing wind noise, reducing the noise of the whole purification device 100 with low noise during operation, and greatly improving the use comfort.

Fig. 12 is a schematic diagram of a second embodiment of a silent air purification device 100 of the present invention, which also includes a housing 10, and a purification module 20 and a separation module 30 disposed in the housing 10. An open air inlet duct 19 is formed between the housing 10 and the purification module 20, and an air duct 33 is connected between the separation module 30 and the air outlet 14 of the housing 10. In this embodiment, the middle of the air duct 33 protrudes outward to form a section of cavity 330, a pipeline 37 is disposed at the connection between the cavity 330 and the air duct 33, the cavity 330 is sealed by the pipeline 37, a plurality of fine through holes 370 penetrating in the axial direction are formed in the pipeline 37, the through holes 370 communicate the sealed cavity 330 with the air duct 33, and the sealed cavity 330 and the pipeline 37 with the through holes 370 together form a resonance muffler. In the process that the purified clean air flows to the air outlet 14 along the air pipe 33, the through hole 370 and the cavity 330 form an elastic vibration system, the air in the through hole 370 reciprocates like a piston under the action of sound waves, and part of sound energy is converted into heat energy to be consumed, so that the effect of noise elimination is achieved.

Fig. 13 is a schematic diagram of a third embodiment of a silent air purification device 100 of the present invention, which also includes a housing 10, and a purification module 20 and a separation module 30 disposed in the housing 10. The main difference between this embodiment and the two embodiments is: a silencing cavity 50 is arranged in the interval between the shell 10 and the purification module 20, the silencing cavity 50 is provided with an inlet 52 corresponding to the air inlet 12 of the shell 10, and an outlet 54 corresponding to the air inlet of the purification module 20, so that the silencing cavity 50 forms a closed air inlet channel between the shell 10 and the purification module 20; otherwise, the air duct 33 is removed between the separation module 30 and the air outlet 14 to form an open air outlet channel. In this embodiment, the air to be purified from the outside enters the muffling chamber 50 through the air inlet, the inlet 52, and then flows along the muffling chamber 50 toward the outlet 54 and into the purification module 20. The muffling cavity 50 is used as a muffler, and in the air inlet process, sound waves are reflected when encountering the inner wall of the muffling cavity 50, and the reflected sound waves and incident sound waves are interfered to achieve the muffling effect.

A silencer is arranged between the separation module 30 and the air outlet, and specifically comprises a porous silencing tube 35 arranged on the separation module 30, and a rotary silencing piece 39 positioned between the silencing tube 35 and the air outlet 14 of the housing 10. In this embodiment, the muffler cylinder 35 and the rotary muffler 39 are arranged side by side, and a continuously folded and curved sound channel 390 is formed in the rotary muffler 39. As shown in fig. 14, the rotary noise damper 39 is of a vertically and horizontally symmetrical structure, and a symmetrical sound channel 390 is formed inside, and the rotary noise damper 39 is provided with an inlet 392 into the sound channel 390 on the upper, lower, left and right side walls, respectively, and an outlet 394 on the side wall facing the air outlet 14, wherein the outlet 394 is a common outlet of the sound channel 390. When the device is assembled, a certain space is formed between the upper end, the lower end, the left end and the right end of the rotary noise elimination part 39 and other elements, clean air discharged by the separation module 30 firstly flows through the porous noise elimination cylinder 35 to eliminate a part of noise, then enters the rotary noise elimination part 39 through the inlet 392 and flows to the air outlet 14 along the sound channel 390, and in the process, because the sound channel 390 is continuously folded and bent, sound waves are continuously refracted and reflected, so that the aim of further noise elimination is achieved, and the silencing effect is further enhanced.

Fig. 15 is a schematic diagram of a fourth embodiment of a silent air cleaning device 100 of the present invention, which also includes a housing 10, a cleaning module 20 and a separating module 30 disposed in the housing 10. The present embodiment is different from the third embodiment in that: a pipeline 37 is arranged in the silencing cavity 50 between the shell 10 and the purification module 20, a plurality of fine through holes 370 penetrating along the axial direction are formed in the pipeline 37, and the pipeline 37 and the silencer 50 jointly form a resonance silencer for eliminating noise. The number of the pipes 37 can be one or more, for example, in this embodiment, the silencing chamber 50 has a pipe 37 at the end thereof close to the air inlet of the purification module 20, the pipe 37 plugs the end of the silencing chamber 50 to form a closed cavity, and the cavity and the pipe 37 together form a resonance silencer; in addition, the muffling cavity 50 is provided with two pipelines 37 at the end position close to the air inlet 12, the two pipelines 37 are separately arranged to form two resonance mufflers connected in series, so that muffling amount at more resonance frequencies can be obtained or muffling frequency bands at the resonance frequencies can be expanded, the muffling effect is further enhanced, and noise is eliminated.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and other changes and modifications can be made by those skilled in the art according to the spirit of the present invention, and these changes and modifications made according to the spirit of the present invention should be included in the scope of the present invention as claimed.

Claims (11)

1. The utility model provides a silence air purification device, includes the shell and sets up the purification module in the shell, be formed with air inlet and gas outlet on the shell, purification module includes the fan, the fan is by the air inlet with outside air suction to the shell that needs purify in, the air outwards discharges its characterized in that by the gas outlet after purification module's purification: an air inlet channel is formed between the purification module and the air inlet, an air outlet channel is formed between the purification module and the air outlet, and a silencer is arranged on at least one of the air inlet channel and the air outlet channel.

2. A silent air cleaning device as claimed in claim 1, wherein said cleaning module is spaced from said air outlet, and an air duct is connected between said cleaning module and said air outlet, said air duct forming a closed air outlet channel, and said silencer being a porous silencing tube disposed in said air duct.

3. The silent air purification device according to claim 1, wherein the purification module is spaced from the air outlet, an air pipe is connected between the purification module and the air outlet, the air pipe forms a closed air outlet channel, a cavity is convexly formed in the middle of the air pipe, a pipeline for closing the cavity is arranged at the joint of the cavity and the air pipe, the pipeline is provided with a plurality of through holes which axially penetrate through the pipeline and communicate the cavity with the air pipe, and the cavity and the pipeline with the through holes jointly form a resonance silencer.

4. The silent air purification device according to claim 1, wherein the purification module is spaced from the air outlet to form an open air outlet channel, the silencer is disposed in the air outlet channel and comprises a porous silencing cylinder and a rotary silencing piece, the rotary silencing piece is disposed between the porous silencing cylinder and the air outlet, and a sound channel bent back is formed in the rotary silencing piece.

5. A silent air cleaning device as claimed in claim 4, wherein said rotary noise-damping member is of a symmetrical structure, and has symmetrical sound channels formed therein, and the rotary noise-damping member has a sound channel inlet formed on each of opposite sides thereof and a common sound channel outlet formed in the middle thereof, and said sound channel outlet faces the air outlet.

6. A silent air cleaning device as claimed in claim 1, wherein said housing is spaced from the cleaning module, the spacing therebetween forming an open air intake duct, said open air intake duct constituting a muffler.

7. A silent air cleaning device as claimed in claim 1, wherein said housing is spaced from said cleaning module, said silencer further comprising a silencing chamber disposed in the space between said housing and said cleaning module, said silencing chamber forming a closed air inlet duct, said silencing chamber being formed with an inlet facing the air inlet of said housing and an outlet facing the air inlet of said cleaning module.

8. A silent air cleaning device as claimed in claim 7, wherein said silencer further comprises at least one pipe disposed in the end of the silencing chamber, said pipe being provided with a plurality of through holes extending therethrough in the axial direction, the end of said silencing chamber and the pipe having the through holes together forming a resonant silencer.

9. A silent air cleaning device as claimed in claim 8, wherein said pipes are plural and spaced apart at the ends within the muffling chamber.

10. A silent air cleaning device as claimed in any one of claims 1 to 9, wherein a separation module and a water tank are further disposed in the housing, the separation module comprises an exhaust fan, the exhaust fan draws the air purified by the purification module to the outlet and discharges the air to the outside, the separation module and the purification module are disposed side by side, the air outlet channel is formed between the separation module and the air outlet, the purification module further comprises an atomizing disk fixedly connected to the rotor of the fan and synchronously rotating with the rotor, the water tank is disposed below the separation module and the purification module and used for supplying water to the atomizing disk, radial grooves are formed on the atomizing disk, the water in the water tank rotates with the rotor on the atomizing disk and is outwardly sprayed along the groove walls to form water mist, and the water mist is mixed with the air to be purified to purify the air.

11. A silent air cleaning device as claimed in claim 10, wherein an absorbing member is disposed on the side of the outlet air of the blower, another absorbing member is disposed on the side of the inlet air of the blower, the absorbing members are honeycomb-shaped and comprise a plurality of stacked absorbing layers, each absorbing layer forms the through holes, the holes of two adjacent absorbing layers are staggered, the water mist and the cleaned air flow through the absorbing members under the action of the blower and the blower, the water mist forms a water film when passing through the absorbing members, and the cleaned air is cleaned again when flowing through the water film.