CN216620109U - Air purifier - Google Patents

Abstract

The utility model provides an air purifier. The air purifier includes: the air inlet is communicated with the air outlet through the air duct; the wet curtain assembly is arranged in the shell and positioned at an air outlet of the air duct, the wet curtain assembly comprises a wet curtain and a first cache structure, the first cache structure is used for caching liquid, and at least part of the wet curtain is positioned in the first cache structure so as to wet the wet curtain through the liquid; the liquid supply assembly is arranged in the shell in a lifting manner and comprises a liquid supply device; the liquid supply device is provided with a first position communicated with the first cache structure to supply liquid into the first cache structure and a second position disconnected from the first cache structure and avoiding the air outlet of the air duct. The utility model effectively solves the problem that the air output of the freshener in the purification mode is small and the use requirement of a user cannot be met in the prior art.

Description

Air purifier

Technical Field

The utility model relates to the technical field of household appliances, in particular to an air purifier.

Background

At present, the air purifier has more diversified functions, and more complex functions such as disinfection, humidification, dehumidification and the like are derived only for purifying particles, peculiar smell, harmful gases and the like in the air, so that the application scenes of the air purifier are more and more extensive, and various requirements of consumers are met. The humidifying air purifier is a product integrating humidification and purification, and can humidify air while purifying the air, so that the ambient air becomes fresher and more comfortable.

In prior art, the refreshing machine is water tank evaporation formula usually, lets during water flows into the basin through the valve of water tank bottom promptly, and wet curtain subassembly is installed to the basin, just can absorb moisture after wet curtain soaks the aquatic, lets whole wet curtain be full of moisture, and the ventilation of rethread fan lets wind pass through wet curtain to make the moisture evaporation reach the humidification effect.

However, the water tank and the wet curtain component of the refreshing machine are placed side by side in the prior art, and the water tank can occupy a large part of the air outlet duct, so that the air volume is too small and the purifying effect is poor when the user uses the purifying function alone, and the noise is large enough, so that the use experience of the user is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air purifier to solve the problem that the air output of a freshener in a purification mode is small and the use requirement of a user cannot be met in the prior art.

In order to achieve the above object, the present invention provides an air cleaner comprising: the air inlet is communicated with the air outlet through the air duct; the wet curtain assembly is arranged in the shell and positioned at an air outlet of the air duct, the wet curtain assembly comprises a wet curtain and a first cache structure, the first cache structure is used for caching liquid, and at least part of the wet curtain is positioned in the first cache structure so as to wet the wet curtain through the liquid; the liquid supply assembly is arranged in the shell in a lifting manner and comprises a liquid supply device; the liquid supply device is provided with a first position communicated with the first cache structure to supply liquid into the first cache structure and a second position disconnected from the first cache structure and avoiding the air outlet of the air duct.

Furthermore, the first position is positioned above the second position, and the liquid supply device is provided with an air guide surface; when the liquid supply device is at the first position, the wet curtain is positioned between the air outlet of the air channel and the air guide surface, and the air guide surface is arranged towards the air outlet of the air channel so as to guide the gas to the air outlet.

Further, the liquid supply assembly further comprises: the second buffer structure is communicated with the liquid supply device; the liquid supply assembly has a liquid supply state and a liquid return state, and when the liquid supply assembly is in the liquid supply state, liquid in the liquid supply device enters the first buffer structure through the second buffer structure; when the liquid supply assembly is in a liquid return state, liquid cached in the first cache structure flows back to the second cache structure.

Further, the air purifier further includes: the fan is arranged in the shell and used for sucking gas into the air duct through the air inlet; the purification component is arranged in the air duct and comprises a filter screen and/or a deodorization screen.

Further, the air purifier includes: the lifting device is arranged on the liquid supply device, and at least part of the lifting device can be arranged in a lifting manner so as to drive the liquid supply device to be switched between a first position and a second position.

Further, the air purifier further includes: the humidity detection device is used for detecting the humidity value of the surface of the wet curtain; when the humidity detection value of the humidity detection device is smaller than or equal to the preset humidity value, the air purifier is controlled to be in the purification mode.

Further, the liquid supply assembly further comprises: the first cache structure is communicated with the second cache structure through a communicating pipe; the pump body structure is arranged on the communicating pipe and used for pumping the liquid entering the second cache structure into the first cache structure; or the pump body structure is used for pumping the liquid cached in the first cache structure into the second cache structure.

Furthermore, one end of the communicating pipe is connected with the second cache structure, and the first cache structure is provided with a liquid passing hole; the other end of the communicating pipe is telescopically arranged so as to extend into the liquid passing hole or withdraw out of the liquid passing hole.

Further, the first buffer structure has a first recess, at least a part of the wet curtain is located in the first recess, a plurality of teeth are provided on the outer circumferential surface of the wet curtain, and the wet curtain assembly further includes: a drive device; the gear structure is in driving connection with the driving device and is meshed with the tooth-shaped part; the driving device drives the gear structure to move so as to drive the wet curtain to rotate, and then the wet curtain is wetted by liquid.

Further, the second buffer structure is provided with a second concave portion, the liquid supply device is arranged in the second concave portion, and a liquid outlet of the liquid supply device is used for being communicated with the second concave portion.

By applying the technical scheme of the utility model, the liquid supply assembly is arranged in the shell in a lifting manner and comprises a liquid supply device, and the liquid supply device is provided with a first position which is communicated with the first cache structure to supply liquid into the first cache structure and a second position which is disconnected from the first cache structure and communicated with the first cache structure and avoids the air outlet of the air duct. Thus, when the liquid supply device is at the first position, the liquid supply device supplies liquid into the first buffer structure to wet the wet curtain and further humidify the gas. When the liquid supply device is in the second position, the liquid supply device does not supply liquid into the first buffer structure, the wet curtain is in a dry state and cannot humidify gas, the air purifier is in a purification mode in the time, the liquid supply device avoids the air outlet of the air duct in the mode, further the air outlet space of the air duct is enlarged, and gas discharged from the air outlet of the air duct can directly enter the air outlet so as to be discharged to the indoor space through the air outlet.

Compared with the water tank of the refreshing machine in the prior art and the wet curtain assembly which are placed side by side, the liquid supply device in the application can be arranged in a lifting mode, when the air purifier is in a purification mode, the liquid supply device avoids an air outlet of an air channel, so that the air outlet space of the air channel is increased, the problem that the air outlet volume of the refreshing machine in the purification mode is small and the use requirement of a user cannot be met is solved, and the purification effect is improved. Simultaneously, above-mentioned setting can reduce the air-out noise, has also improved user's use and has experienced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows an internal structural view of an embodiment of an air purifier according to the present invention;

FIG. 2 illustrates a schematic structural view of a wet curtain assembly of the air purifier of FIG. 1; and

fig. 3 illustrates a control method of an air purifier according to the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. an air inlet; 12. an air duct; 121. an air outlet of the air duct; 20. a wet curtain assembly; 21. wet curtain; 22. a first cache structure; 221. a first recess; 23. a tooth-shaped portion; 24. a gear structure; 30. a liquid supply assembly; 31. a liquid supply device; 311. an air guide surface; 32. a second cache structure; 40. a fan; 50. a purification assembly; 51. filtering with a screen; 52. a deodorizing net; 60. a lifting device; 70. an air inlet grille.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the air output of the refreshing machine under the purification mode is less and can not satisfy the user demand, the application provides an air purifier.

As shown in fig. 1 and 2, the air purifier includes a housing 10, a wet curtain assembly 20, and a liquid supply assembly 30. The casing 10 has an air inlet 11, an air outlet, and an air duct 12, and the air inlet 11 is communicated with the air outlet through the air duct 12. The wet curtain assembly 20 is disposed in the casing 10 and located at the air duct outlet 121 of the air duct 12, the wet curtain assembly 20 includes a wet curtain 21 and a first buffer structure 22, the first buffer structure 22 is used for buffering liquid, and at least a portion of the wet curtain 21 is located in the first buffer structure 22, so as to wet the wet curtain 21 through the liquid. The liquid supply assembly 30 is elevatably disposed within the housing 10, the liquid supply assembly 30 including a liquid supply 31. The liquid supply device 31 has a first position communicated with the first buffer structure 22 to supply liquid into the first buffer structure 22 and a second position disconnected from the first buffer structure 22 and avoiding the air outlet 121 of the air duct.

By applying the technical scheme of the embodiment, the liquid supply assembly is arranged in the casing in a liftable manner and comprises a liquid supply device, and the liquid supply device is provided with a first position communicated with the first cache structure to supply liquid into the first cache structure and a second position disconnected from the first cache structure and avoiding the air outlet of the air duct. Thus, when the liquid supply device is at the first position, the liquid supply device supplies liquid into the first buffer structure to wet the wet curtain and further humidify the gas. When supplying the liquid device and being in the second position, supply the liquid device and not supply liquid to in the first buffer memory structure, wet curtain is in dry state and can't the humidified gas, and this air purifier is in the purification mode, and under this mode, supply the liquid device and dodge the wind channel air outlet, and then increased the air-out space in wind channel, then can directly get into in the air vent from wind channel air outlet combustion gas to arrange to indoor through the air vent.

Compared with the water tank of the refreshing machine in the prior art and the wet curtain assembly which are placed side by side, the liquid supply device in the application can be arranged in a lifting mode, when the air purifier is in a purification mode, the liquid supply device avoids an air outlet of an air channel, so that the air outlet space of the air channel is increased, the problem that the air outlet volume of the refreshing machine in the purification mode is small and the use requirement of a user cannot be met is solved, and the purification effect is improved. Simultaneously, above-mentioned setting can reduce the air-out noise, has also improved user's use and has experienced.

In the embodiment, the position of the liquid supply device 31 is adjustable, so that the position controllability of the liquid supply device 31 is increased, and the utilization rate of the internal space of the air purifier is further improved.

As shown in fig. 1, the first position is located above the second position, and the liquid supply device 31 has an air guide surface 311. When the liquid supply device 31 is in the first position, the wet curtain 21 is located between the air duct outlet 121 and the air guide surface 311, and the air guide surface 311 is disposed toward the air duct outlet 121 to guide the air to the air outlet. Like this, in air purifier operation in-process, the gas from wind channel air outlet 121 combustion gas passes wet curtain 21 earlier, and wet curtain 21 humidifies above-mentioned gas, and the gas after wet curtain 21 humidification blows to wind guide surface 311 to guide gas to gas vent department through wind guide surface 311, and then ensure that the gas that is located air purifier can smoothly discharge to indoor, and then promoted air purifier's purification efficiency.

In this embodiment, the air guide surface 311 is an arc surface, and the center of the arc surface and the wet curtain 21 are located on the same side, so that the air outlet space of the air duct air outlet 121 is further increased, and the air purifier is prevented from generating vibration or noise due to the turbulent flow of air at the position.

As shown in fig. 1, the liquid supply assembly 30 further includes a second buffer structure 32. The second buffer structure 32 is communicated with the liquid supply device 31. The liquid supply assembly 30 has a liquid supply state and a liquid return state, and when the liquid supply assembly 30 is in the liquid supply state, liquid in the liquid supply device 31 enters the first buffer structure 22 through the second buffer structure 32; when the liquid supply assembly 30 is in the liquid return state, the liquid buffered in the first buffer structure 22 flows back into the second buffer structure 32. Thus, the above arrangement ensures that the liquid in the liquid supply device 31 can flow into the first buffer structure 22 through the second buffer structure 32 to wet the wet curtain 21 and further humidify the gas; on the other hand, the liquid buffered in the first buffer structure 22 is ensured to flow back to the second buffer structure 32, so that the wet curtain 21 is in a dry state and the air purifier is in a purification mode. Meanwhile, the second buffer structure 32 plays a role of buffering liquid, and if the liquid supply device 31 cannot timely supply liquid, the liquid can be temporarily supplied to the first buffer structure 22 through the second buffer structure 32, so that the air purifier can normally operate.

Optionally, the air purifier further comprises a fan 40 and a purification assembly 50. Wherein, the fan 40 is arranged in the casing 10, and the fan 40 is used for sucking the air into the air duct 12 through the air inlet 11. A purification assembly 50 is disposed within the air duct 12, the purification assembly 50 including a screen 51 and/or a deodorizing screen 52. In this way, the blower 40 serves to draw air, which is located outside the air cleaner, into the cabinet 10 through the air inlet 11 to provide an air source for the air cleaner. The purification assembly 50 is used to purify foreign particles, pollutants, etc. in the air entering the air duct 12, so that the air outlet discharges clean air.

In this embodiment, the purifying assembly 50 includes a filter screen 51 and a deodorizing screen 52, the filter screen 51 is located below the deodorizing screen 52, the gas passes through the filter screen 51, then passes through the deodorizing screen 52, and is discharged through the air outlet 121 of the air duct, and the filter screen 51 and the deodorizing screen 52 are used for intercepting fine substances such as PM2.5, VOC, bacteria and viruses, so as to achieve the purpose of purifying the air.

Optionally, the deodorizing screen 52 is activated carbon.

As shown in fig. 1, the air purifier further includes an air inlet grille 70, the air inlet grille 70 is disposed at the air inlet 11, and the air inlet grille 70 is used for filtering large particulate matters such as hair, dander, dust, etc.

As shown in FIG. 1, the air purifier has a cleaning mode and a humidifying mode, and the air purifier is in the humidifying mode when the liquid supply device 31 is in the first position; when the liquid supply device 31 is at the second position, the air purifier is in the purification mode. Like this, above-mentioned setting makes air purifier have two kinds of operational modes, and the purification mode only purifies gas, and the humidification mode purifies and humidifies gas to satisfy the user demand that the user is different.

Specifically, when the liquid supply device 31 is located at the first position, the liquid supply device 31 is communicated with the first buffer structure 22 through the second buffer structure 32 to supply liquid into the first buffer structure 22, so that the liquid buffered in the first buffer structure 22 wets the wet curtain 21, and the wet curtain 21 humidifies the gas passing through the wet curtain 21, so that the air purifier is in a humidifying mode. When the liquid supply device 31 is located at the second position, the liquid buffered in the first buffer structure 22 flows back to the second buffer structure 32, so that the wet curtain 21 is in a dry state and cannot humidify the gas passing through the wet curtain, and the air purifier is in a pure purification mode.

As shown in fig. 1, the air cleaner includes a lifting device 60. The liquid supply device 31 is arranged on the lifting device 60, and at least part of the lifting device 60 is arranged in a lifting manner so as to drive the liquid supply device 31 to be switched between a first position and a second position. Therefore, the liquid supply device 31 is controlled to ascend and descend through the ascending and descending device 60, so that the liquid supply device 31 can be switched between the first position and the second position, the air purifier can be controlled to be switched between the humidifying mode and the purifying mode conveniently, the operation difficulty of a user is reduced, and the automatic ascending and descending of the liquid supply device 31 are realized.

In this embodiment, the lifting device 60 is an X-shaped lifting platform, and the height of the liquid supply device 31 can be adjusted by adjusting the included angle of the X-shaped lifting platform. Thus, the lifting device 60 is simpler in structure and easy to process due to the arrangement, and the processing cost of the air purifier is reduced.

It should be noted that the structure of the lifting device 60 is not limited to this, and can be adjusted according to the working condition and the use requirement. Alternatively, the lifting device 60 is a linear motor, or a driving cylinder, or a lead screw nut structure, or a gear rack structure, or a conveyor belt structure or a chain structure.

Optionally, the air purifier further comprises a humidity detection device. The humidity detection device is used for detecting the humidity value of the surface of the wet curtain 21. When the humidity detection value of the humidity detection device is smaller than or equal to the preset humidity value, the air purifier is controlled to be in the purification mode. Like this, carry out real-time detection to the humidity on wet curtain 21 surface through humidity detection device, when humidity detection value when humidity detection device is less than or equal to predetermined humidity value, wet curtain 21 can't carry out the humidification to the gas through it, can control air purifier and be in the purification mode to satisfy the air purification demand that the user is simple.

Optionally, the liquid supply assembly 30 further comprises a communication pipe and a pump body structure, and the first buffer structure 22 is communicated with the second buffer structure 32 through the communication pipe. The pump body structure is arranged on the communicating pipe and is used for pumping the liquid entering the second cache structure 32 into the first cache structure 22; alternatively, the pump body structure is used to pump liquid cached in the first cache structure 22 into the second cache structure 32. Thus, the communication pipe is arranged to make the communication between the first buffer structure 22 and the second buffer structure 32 easier and simpler, and to ensure the liquid communication between the first buffer structure 22 and the second buffer structure 32. Meanwhile, the operation states (liquid supply state and liquid return state) of the liquid supply assembly 30 are controlled through the pump body structure, and therefore the control difficulty of a user on the air purifier is reduced.

Optionally, one end of the communicating tube is connected to the second buffer structure 32, and the first buffer structure 22 has a liquid passing hole. The other end of the communicating pipe is telescopically arranged so as to extend into the liquid passing hole or withdraw out of the liquid passing hole. Therefore, the connection and disconnection of the first buffer structure 22 and the second buffer structure 32 can be realized by controlling the other end of the communicating pipe to extend into the liquid passing hole or withdraw out of the liquid passing hole. Meanwhile, the communication pipe is telescopically arranged, and in the process that the lifting device 60 drives the liquid supply device 31 to lift, the communication pipe can retract, so that the normal lifting of the liquid supply device 31 is prevented from being influenced by the movement interference between the communication pipe and the first buffer structure 22.

Optionally, the communication tube is a retractable plastic tube to facilitate replacement of the communication tube and reduce cost.

It should be noted that the material of the communication pipe is not limited to this, and may be adjusted according to the working condition and the use requirement. Alternatively, the communication pipe is made of rubber or stainless steel material.

Optionally, the liquid passing hole is a circular hole and is one, so that the first buffer structure is simpler, and the first buffer structure is easy to process and reduces the cost.

It should be noted that, the shape of the liquid passing hole is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the liquid passing hole is a polygonal hole or an elliptical hole, or a hole formed by surrounding a straight line segment and a curved line segment.

It should be noted that the number of the liquid passing holes is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the number of the liquid passing holes is two, or three, or four, or more.

As shown in fig. 1 and 2, the first buffer structure 22 has a first recess 221, at least a portion of the wet curtain 21 is located in the first recess 221, a plurality of teeth 23 are provided on an outer circumferential surface of the wet curtain 21, and the wet curtain assembly 20 further includes a driving device and a gear structure 24. The gear structure 24 is in driving connection with the driving means, and the gear structure 24 is in engagement with the toothed portion 23. Wherein the driving device drives the gear structure 24 to move, so as to drive the wet curtain 21 to rotate, and further the wet curtain 21 is wetted by the liquid. In this way, the wet curtain 21 is rotatably disposed relative to the first buffer structure 22, which ensures that the wet curtain 21 is in sufficient contact with the liquid during rotation of the wet curtain 21, and thus that the wet curtain 21 is fully wetted by the liquid. Meanwhile, the rotation of the wet curtain 21 is more stable through gear transmission, and the driving reliability of the driving device is further improved.

As shown in fig. 1, the second buffer structure 32 has a second concave portion, the liquid supply device 31 is disposed in the second concave portion, and the liquid outlet of the liquid supply device 31 is used for communicating with the second concave portion. In this way, the second concave part is used for accommodating the liquid supply device 31, so that the overall occupied space of the liquid supply assembly 30 is reduced on the premise of ensuring that the liquid supply device 31 can be communicated with the second buffer structure 32, and on one hand, the liquid supply device 31 is prevented from moving and interfering with other structures in the air purifier in the lifting process; on the other hand, a compact design of the air cleaner is achieved so that the inner space of the cabinet 10 is reasonably utilized.

As shown in fig. 1, the intake port 11 is located below the exhaust port. Thus, after the fan 40 is started, the air enters the air duct 12 through the air inlet 11, flows from bottom to top in the air purifier under the suction action of the fan 40, and passes through the filter screen 51 and the deodorizing screen 52 in sequence, so as to achieve the air purifying effect. Simultaneously, the above-mentioned setting of gas vent makes air purifier's air outlet be located suitable high position to ensure that the user can breathe clean gas.

Specifically, the operation mode of the air purifier is as follows:

if the air purifier only starts the humidification mode, the lifting device 60 drives the liquid supply device 31 to rise to a designated position, so that the liquid supply device 31 is communicated with the first buffer structure 22 through the second buffer structure 32, and at this time, when the wet curtain 21 is immersed in the water in the first buffer structure 22, the wet curtain can absorb the water to humidify the gas passing through the wet curtain. If the air purifier only starts the purification mode, the lifting device 60 drives the liquid supply device 31 to descend into the storage area, so that the air outlet space is increased.

In this embodiment, the air purifier will enter the purification mode when being started, and according to the selection of the operation mode, the following 4 conditions will occur in the operation process of the lifting device 60:

1. continuous purge mode

In this mode, the air purifier remains in the purification mode after being turned on until it is turned off, and the lifting device 60 remains in the storage area without any movement.

2. Continuous humidification mode

In this mode, the air purifier is turned on, then the humidification mode is selected and operated until it is turned off, the lifting device 60 is raised when the humidification mode is started, and the lifting device 60 is lowered when the air purifier is turned off.

3. Purification before humidification mode

In this mode, the air purifier remains in the purification mode after being turned on, the lifting device 60 does not act, the humidification mode is selected after the air purifier has been operated for a certain period of time, the lifting device 60 rises, and the lifting device 60 falls when turned off.

4. Humidification before purification mode

In this mode, the humidification mode is selected after the air purifier is turned on, the lifting device 60 is raised, the humidification function is turned off after the air purifier has been operated for a certain period of time, the lifting device 60 is lowered, and the lifting device 60 is not actuated when the air purifier is turned off.

In this embodiment, the air purifier further includes a position detecting device for detecting a real-time position of the liquid supply device 31.

In view of the above four situations, the position detection device detects the position of the liquid supply device 31 when the air purifier is turned off, and if the liquid supply device 31 is located above the storage area, the lifting device 60 needs to be started to drive the liquid supply device 31 to descend to the storage area. If the liquid supply device 31 is already in the containing area, the machine is directly shut down. Therefore, the final state of the liquid supply device 31 is in the housing area.

As shown in fig. 3, the present application further provides an air purification method, which is suitable for the air purifier, and the air purification method includes:

controlling a liquid supply device of the air purifier to move to a first position communicated with the first cache structure to supply liquid into the first cache structure according to the operation mode of the air purifier; or the liquid supply device of the air purifier is controlled to move to a second position which is disconnected from the first cache structure and avoids the air outlet of the air duct; the operation mode comprises a continuous purification mode, a continuous humidification mode, a purification-then-humidification mode and a humidification-then-purification mode.

In the present embodiment, a method of controlling an air purifier in a continuous purification mode includes: and starting the air purifier, and controlling the liquid supply device to be at the second position.

In this embodiment, the method of controlling the air purifier in the continuous humidification mode includes: and starting the air purifier, and controlling the liquid supply device to be at the first position.

In this embodiment, the method for controlling the air purifier to be in the purification-before-humidification mode includes: and starting the air purifier, controlling the liquid supply device to be at the second position, and after the air purifier runs for a first preset time period, starting the lifting device of the air purifier so as to drive the liquid supply device to move from the second position to the first position through the lifting device.

In this embodiment, the method for controlling the air purifier to be in the humidification before purification mode includes: the air purifier is started, the liquid supply device is controlled to be located at the first position, after the air purifier runs for a second preset time period, the humidity detection value of the humidity detection device of the air purifier is obtained, and when the humidity detection value is smaller than or equal to the preset humidity value, the lifting device of the air purifier is started to drive the liquid supply device to move from the first position to the second position through the lifting device.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the liquid supply assembly is arranged in the shell in a liftable mode and comprises a liquid supply device, and the liquid supply device is provided with a first position communicated with the first cache structure to supply liquid into the first cache structure and a second position disconnected from the first cache structure and communicated with the first cache structure to avoid an air outlet of the air duct. Thus, when the liquid supply device is at the first position, the liquid supply device supplies liquid into the first buffer structure to wet the wet curtain and further humidify the gas. When the liquid supply device is in the second position, the liquid supply device does not supply liquid into the first buffer structure, the wet curtain is in a dry state and cannot humidify gas, the air purifier is in a purification mode in the time, the liquid supply device avoids the air outlet of the air duct in the mode, further the air outlet space of the air duct is enlarged, and gas discharged from the air outlet of the air duct can directly enter the air outlet so as to be discharged to the indoor space through the air outlet.

Compared with the water tank of the refreshing machine in the prior art and the wet curtain assembly which are placed side by side, the liquid supply device in the application can be arranged in a lifting mode, when the air purifier is in a purification mode, the liquid supply device avoids an air outlet of an air channel, so that the air outlet space of the air channel is increased, the problem that the air outlet volume of the refreshing machine in the purification mode is small and the use requirement of a user cannot be met is solved, and the purification effect is improved. Simultaneously, the air-out noise can be reduced to above-mentioned setting, has also improved user's use and has experienced.

It is to be understood that the above-described embodiments are only a few, and not all, embodiments of the present invention. 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 is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An air purifier, comprising:

the air conditioner comprises a shell (10) and a fan, wherein the shell is provided with an air inlet (11), an air outlet and an air duct (12), and the air inlet (11) is communicated with the air outlet through the air duct (12);

the wet curtain assembly (20) is arranged in the shell (10) and located at an air duct air outlet (121) of the air duct (12), the wet curtain assembly (20) comprises a wet curtain (21) and a first buffer structure (22), the first buffer structure (22) is used for buffering liquid, and at least part of the wet curtain (21) is located in the first buffer structure (22) so as to wet the wet curtain (21) through the liquid;

a liquid supply assembly (30) liftably disposed within the housing (10), the liquid supply assembly (30) including a liquid supply device (31);

the liquid supply device (31) is provided with a first position which is communicated with the first buffer structure (22) to supply liquid into the first buffer structure (22) and a second position which is disconnected from the first buffer structure (22) and avoids the air duct air outlet (121).

2. The air cleaner of claim 1, wherein the first position is above the second position, the liquid supply device (31) having a wind guide surface (311); when the liquid supply device (31) is in the first position, the wet curtain (21) is located between the air duct air outlet (121) and the air guide surface (311), and the air guide surface (311) is arranged towards the air duct air outlet (121) to guide air to the air outlet.

3. The air purifier of claim 1, wherein the liquid supply assembly (30) further comprises:

a second buffer structure (32) communicating with the liquid supply device (31);

wherein the liquid supply assembly (30) has a liquid supply state and a liquid return state, and when the liquid supply assembly (30) is in the liquid supply state, liquid in the liquid supply device (31) enters the first buffer structure (22) through the second buffer structure (32); when the liquid supply assembly (30) is in the liquid return state, liquid buffered in the first buffer structure (22) flows back into the second buffer structure (32).

4. The air purifier of claim 1, further comprising:

a fan (40) disposed within the enclosure (10), the fan (40) being configured to draw gas into the air duct (12) via the air inlet (11);

a purification assembly (50) disposed within the air duct (12), the purification assembly (50) including a filter screen (51) and/or a deodorizing screen (52).

5. The air purifier of claim 1, wherein the air purifier comprises:

the lifting device (60) is provided with the liquid supply device (31), and at least part of the lifting device (60) can be arranged in a lifting manner so as to drive the liquid supply device (31) to be switched between the first position and the second position.

6. The air purifier of claim 1, further comprising:

humidity detection means for detecting a humidity value of the surface of the wet curtain (21); when the humidity detection value of the humidity detection device is smaller than or equal to a preset humidity value, the air purifier is controlled to be in a purification mode.

7. The air purifier of claim 3, wherein the liquid supply assembly (30) further comprises:

the first cache structure (22) is communicated with the second cache structure (32) through the communicating pipe;

the pump body structure is arranged on the communicating pipe and used for pumping the liquid entering the second cache structure (32) into the first cache structure (22); or the pump body structure is used for pumping the liquid cached in the first cache structure (22) to the second cache structure (32).

8. The air purifier according to claim 7, wherein one end of the communication pipe is connected to the second buffer structure (32), and the first buffer structure (22) has a liquid through hole; the other end of the communicating pipe is telescopically arranged to extend into the liquid passing hole or withdraw out of the liquid passing hole.

9. The air cleaner of claim 1, wherein the first buffer structure (22) has a first recess (221), at least a portion of the wet curtain (21) is located within the first recess (221), the wet curtain (21) is provided with a plurality of teeth (23) on an outer circumferential surface thereof, the wet curtain assembly (20) further comprising:

a drive device;

a gear structure (24) in driving connection with the drive device, the gear structure (24) being in engagement with the toothed portion (23); wherein the driving device drives the gear structure (24) to move so as to drive the wet curtain (21) to rotate, and further the wet curtain (21) is wetted by liquid.

10. An air cleaner according to claim 3, wherein the second buffer structure (32) has a second recess, the liquid supply device (31) being arranged in the second recess, the liquid outlet of the liquid supply device (31) being adapted to communicate with the second recess.

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