Humidifier

Abstract

The application discloses a humidifier, comprising an air treatment module and a power module connected together, the air treatment module comprising an air inlet and a humidifying module, the power module comprising an air outlet, a fan system and a driving mechanism, the air inlet and the air outlet being communicated, the fan system being arranged to drive air flow; the humidifying module comprising a water tank with a water storage cavity, a wet curtain and a lifting mechanism, the lifting mechanism connecting the driving mechanism and the wet curtain, the driving mechanism being arranged to drive the wet curtain to move up and down through the lifting mechanism, so that the humidifying module is switched between a humidifying state and a non-humidifying state, wherein in the humidifying state, part of the wet curtain is immersed below a water level line of the water storage cavity, and in the non-humidifying state, the wet curtain is lifted above the water level line of the water storage cavity. The humidifier solves the problems of breeding of bacteria and viruses caused by long-term immersion of the wet curtain in water.

Description

Technical Field

[0001] This invention relates to the field of electrical products, specifically to a humidifier. Background Technology

[0002] With the rapid development of air purifiers, they are entering more and more homes. People are using air purifiers in increasingly diverse scenarios, leading to more diversified product demands, including humidifiers that can meet these diverse needs. Currently, many humidifiers on the market have their evaporative cooling pads constantly submerged in water, which can easily breed bacteria and viruses. Summary of the Invention

[0003] The main objective of this invention is to provide a humidifier that solves the problem of bacteria and viruses easily growing when humidifier curtains are soaked in water for a long time.

[0004] To achieve the above objectives, the technical solutions of the embodiments of the present invention are as follows:

[0005] A humidifier includes an air handling module and a power module connected to each other, the air handling module including an air inlet and a humidification module.

[0006] The power module includes an air outlet, a fan system, and a drive mechanism. The air inlet and the air outlet are connected, and the fan system is configured to drive airflow.

[0007] The humidification module includes a water tank with a water-holding cavity, a wet curtain, and a lifting mechanism. The lifting mechanism connects the drive mechanism and the wet curtain. The drive mechanism is configured to drive the wet curtain to move up and down through the lifting mechanism, so that the humidification module can switch between a humidification state and a non-humidification state. In the humidification state, part of the wet curtain extends below the water level line of the water-holding cavity. In the non-humidification state, the wet curtain rises above the water level line of the water-holding cavity.

[0008] The humidifier of this invention includes an air handling module and a power module connected to each other. The fan system of the power module drives indoor air to enter the air handling module through the air inlet, and the humidification module of the air handling module humidifies the air. The humidified air flows to the power module and is discharged from the air outlet, returning to the room. The humidifier achieves humidification of indoor air, ensuring indoor air quality. Furthermore, the fan system near the air outlet is a backward centrifugal fan system, which draws in a large volume of air during operation, thus improving the humidification efficiency of the humidifier. It also operates with low noise, further reducing noise levels and improving the overall performance of the humidifier.

[0009] In a humidifier, the drive mechanism can move the wet curtain up and down via a lifting mechanism. This allows part of the wet curtain to be submerged in the water tank, absorbing water and humidifying the air. Alternatively, the entire wet curtain can be raised above the water surface, preventing it from being submerged for extended periods and thus avoiding the growth of bacteria and viruses. It also allows for the drying and cleaning of the portion of the wet curtain that is not submerged, improving the safety of the humidifier. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a humidifier according to an embodiment of the present invention;

[0012] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the humidifier.

[0013] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the humidification module of the humidifier, with the humidification module in the humidification state.

[0014] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the humidification module of the humidifier, with the humidification module in a non-humidification state.

[0015] Figure 5 for Figure 3 A schematic diagram of the transmission screw of the lifting mechanism of the humidification module shown;

[0016] Figure 6 for Figure 3 A schematic diagram of the lifting bracket of the lifting mechanism of the humidification module shown;

[0017] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the lifting support.

[0018] Figure 8 for Figure 3 The diagram shows the structure of the water tank in the humidification module.

[0019] Figure 9 for Figure 3 The diagram shows the structure of the evaporative cooling pad in the humidification module.

[0020] Figure 10 for Figure 9 The diagram shows a cross-sectional view of the evaporative cooling pad.

[0021] Figure 11 for Figure 1 The diagram shows the structure of the power module of the humidifier.

[0022] Figure 12 for Figure 11 A cross-sectional schematic diagram of the power module shown;

[0023] Figure 13 for Figure 11 A three-dimensional structural diagram of the transmission base of the drive mechanism of the power module shown.

[0024] Figure 14 for Figure 13 A top view of the transmission seat structure is shown.

[0025] Figure 15 for Figure 13 A schematic diagram of the transmission seat from below;

[0026] Figure 16 for Figure 1 The diagram shows the working process of the humidifier.

[0027] Figure 17 This is a schematic diagram of the rotating component of the lifting mechanism of the humidifier according to another embodiment of the present invention;

[0028] Figure 18 This is a schematic diagram of the lifting bracket of the lifting mechanism of the humidifier according to another embodiment of the present invention.

[0029] The attached figures are labeled as follows:

[0030] 100-Humidification module, 200-Purification module, 201-Air inlet, 202-Second air duct, 203-Purification filter element, 300-Power module, 301-Air outlet, 302-Fan system, 303-Reverse centrifugal impeller, 304-Impeller motor, 305-Third air duct, 306-Base.

[0031] 1-Water tank, 11-Water holding chamber, 12-First air duct, 13-Support base, 14-Second ventilation hole, 15-Baffle, 16-Support rib, 17-Connecting rib, 2-Wet curtain, 21-Wet curtain side wall, 22-Wet curtain end wall, 221-First ventilation hole, 3-Drive component, 4-Lifting mechanism, 41-Transmission screw, 411-Anti-rotation plug, 42-Lifting bracket, 421-Connecting part, 422-Threaded hole, 423-Support side wall, 424-Limiting groove, 425-Water passage hole, 426-Limiting part, 427-Guide hole, 43-Turntable, 431-Guide platform, 4311-First limiting surface, 4312-Second limiting surface, 4313-Guide surface, 4314-First stop surface, 4315-Second stop surface, 44-Transmission rod

[0032] 5-Transmission base, 51-Anti-rotation socket, 52-Motor interface.

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a humidifier, including an air handling module and a power module 300 connected to each other. The air handling module is configured to include an air inlet 201 and a humidification module 100, and the power module 300 is configured to include an air outlet 301 and a fan system 302. The air inlet 201 and the air outlet 301 are connected. The fan system 302 is configured to drive airflow when working, so that air enters from the air inlet 201, flows through the air handling module and the power module 300, and is discharged from the air outlet 301 (the airflow direction is as follows). Figure 2 (As indicated by the middle arrow).

[0037] In some exemplary embodiments, the air handling module may further include a purification module 200, which is disposed on the side of the humidification module 100 away from the power module 300, and the purification module 200 may include an air inlet 201, that is, the air inlet 201 may be disposed on the housing of the purification module 200. Of course, the humidifier may also not include a purification module.

[0038] In this humidifier, the purification module 200, the humidification module 100, and the power module 300 are arranged sequentially, as follows: Figure 1 and Figure 2 As shown, the purification module 200, humidification module 100, and power module 300 can be arranged sequentially from bottom to top, or from top to bottom. The purification module 200 has an air inlet 201, and the power module 300 has an air outlet 301 and a fan system 302. The fan system 302 in the power module 300 is positioned close to the air outlet 301. Therefore, the fan system 302 in the power module 300 can be a backward centrifugal fan system. Using a backward centrifugal fan system as the power system drives indoor air to enter the purification module 200 through the air inlet 201, where it is purified. The purified air then flows to the humidification module 100 for humidification. The purified and humidified air then flows to the power module 300 and is discharged from the air outlet 301, returning to the room.

[0039] The humidifier purifies and humidifies indoor air, ensuring indoor air quality. Compared to a forward centrifugal fan system, this humidifier uses a backward centrifugal fan system as its power system. The backward centrifugal fan system is located near the air outlet 301. When it is working, it can draw in air, keeping the air duct inside the humidifier under negative pressure. The air volume drawn in by the backward centrifugal fan system is greater than that of the forward centrifugal fan system (located near the air outlet), thus helping to improve the purification and humidification efficiency of the humidifier. In addition, the backward centrifugal fan system operates with low noise, which helps to reduce the noise level of the humidifier during operation and improves the performance of the humidifier.

[0040] like Figures 2-4 As shown, the humidification module 100 includes a water tank 1, a wet curtain 2, and a lifting mechanism 4. Correspondingly, the power module 300 also includes a drive mechanism.

[0041] The water tank 1 has a water-holding cavity 11, which can be used to hold water. The upper end of the water-holding cavity 11 may have an opening so that the wet curtain 2 can extend into the water-holding cavity 11 through the opening.

[0042] The lifting mechanism 4 connects the drive mechanism and the wet curtain 2, and the drive mechanism is configured to drive the wet curtain 2 to move up and down via the lifting mechanism 4, so that the humidification module 100 can move as follows: Figure 3 The humidification state shown and as Figure 4 The switching between non-humidification states is shown. For example, Figure 3 As shown, in humidification mode, part of the wet curtain 2 extends below the water level line (e.g., the rated water level line or the actual water level line obtained by detection) of the water-holding chamber 11; Figure 4As shown, in the non-humidification state, the wet curtain 2 rises above the water level line of the water chamber 11.

[0043] In this humidifier, the drive mechanism is connected to the wet curtain 2 via a lifting mechanism, and can drive the wet curtain 2 to move up and down, so that part of the wet curtain 2 (lower part) can be inserted into the water in the water chamber 11, so that the wet curtain 2 can absorb water from the water chamber 11 to humidify the air; or, the entire wet curtain can be raised above the water surface, at which time the wet curtain 2 is not immersed in the water, avoiding the problem of bacteria and viruses growing when the wet curtain 2 is immersed in the water for a long time, and the wet curtain 2 that is not immersed in the water can be dried and cleaned, thus improving the safety of the humidifier.

[0044] Furthermore, by placing the drive mechanism in the power module 300 instead of the humidification module 100, the drive mechanism can be separated from the humidification module 100, preventing the drive mechanism from being affected by the moisture in the humidification module 100. This is beneficial to improving the working reliability of the drive mechanism and extending its service life.

[0045] In some exemplary embodiments, the drive mechanism is a rotary drive mechanism capable of outputting rotary motion, and the lifting mechanism 4 is configured to convert the rotary motion output by the drive mechanism into linear motion of the wet curtain 2.

[0046] The drive mechanism can output rotational motion, and the lifting mechanism 4 can convert the rotational motion of the drive mechanism into linear motion of the wet curtain 2, so that the wet curtain 2 can perform linear lifting and lowering displacement, so that a part of the wet curtain 2 (the lower part) can be lowered and extended into the water in the water chamber 11, and absorb water from the water chamber 11 to humidify the air, or the wet curtain 2 can be raised to a position higher than the water surface of the water chamber 11, so as to avoid the wet curtain 2 being soaked in water for a long time.

[0047] In some exemplary embodiments, such as Figures 3-7 As shown, the lifting mechanism 4 includes a transmission screw 41 and a lifting bracket 42.

[0048] The transmission screw 41 has an external thread, and one end of the transmission screw 41 is connected to the drive mechanism.

[0049] The lifting bracket 42 is provided with a threaded hole 422 through which the transmission screw 41 passes. The threaded hole 422 has an internal thread. The transmission screw 41 can pass through the threaded hole 422 of the lifting bracket 42 to achieve threaded engagement between the transmission screw 41 and the lifting bracket 42. The thread pitch of the external thread and the internal thread can be 0.1-3mm.

[0050] The wet curtain 2 can be installed on the lifting bracket 42.

[0051] The drive mechanism is configured to drive the transmission screw 41 to rotate, and drive the lifting bracket 42 and the wet curtain 2 to rise and fall.

[0052] The drive mechanism can output rotational motion, thus driving the connected transmission screw 41 to rotate. The transmission screw 41 has an external thread, and the lifting bracket 42 has a threaded hole 422. The transmission screw 41 can pass through the threaded hole 422 of the lifting bracket 42 and can rotate relative to the threaded hole 422. Driven by the rotating transmission screw 41, the lifting bracket 42 can move up and down, thereby driving the wet curtain 2 installed on the lifting bracket 42 to move up and down together. Specifically, when the transmission screw 41 rotates in one direction, the lifting bracket 42 can drive the wet curtain 2 to descend, so that the wet curtain 2 can descend to partially submerge in the water chamber 11; when the transmission screw 41 rotates in the opposite direction, the lifting bracket 42 can drive the wet curtain 2 to rise, so that the entire wet curtain 2 is raised above the water surface of the water chamber 11, realizing the switching between the humidification module 100 and the non-humidification state, and avoiding the wet curtain 2 being soaked in water for a long time.

[0053] In this lifting mechanism 4, the rotational motion output by the drive mechanism is converted into linear motion through the engagement of the transmission screw 41 with the threaded hole 422 of the lifting bracket 42. Of course, the lifting mechanism is not limited to a threaded engagement structure; it can also be other structures, such as a gear and rack engagement structure. For example, in some exemplary embodiments, the lifting mechanism can be a gear and rack engagement structure, where the gear can be connected to the drive mechanism, the rack can be mounted on the lifting bracket, and the gear and rack can mesh. Through the gear and rack engagement structure, the drive mechanism can drive the lifting bracket to perform lifting motion.

[0054] In some exemplary embodiments, such as Figure 3 , Figure 7 and Figure 8 As shown, the bottom wall of the water-containing cavity 11 is provided with a support base 13, and the other end of the transmission screw 41 is rotatably supported on the support base 13. The support base 13 may have an opening, and the other end of the transmission screw 41 may extend into the opening and rotate within the opening.

[0055] One end of the transmission screw 41 is connected to the drive mechanism, and the other end is supported on the support seat 13 provided on the bottom wall of the water chamber 11. The transmission screw 41 can rotate relative to the support seat 13 so that the drive mechanism can drive the transmission screw 41 to rotate, thereby driving the lifting bracket 42 threadedly connected to the transmission screw 41 to rise and fall, so that the wet curtain 2 can move up and down with the lifting bracket 42, realizing the switching of the humidification module 100 between the humidification state and the non-humidification state.

[0056] In some exemplary embodiments, such as Figures 3-4 , Figures 6-7 As shown, the outer wall of the lifting bracket 42 is provided with a protruding connecting part 421. The connecting part 421 and the lifting bracket 42 are an integral structure or a separate assembly structure. The threaded hole 422 is provided in the connecting part 421.

[0057] The outer wall of the lifting bracket 42 is provided with a protruding connecting part 421. The connecting part 421 is offset from the central axis of the lifting bracket 42. Therefore, when the transmission screw 41 passes through the threaded hole 422 opened on the connecting part 421 and rotates relative to the threaded hole 422, the lifting bracket 42 will not rotate, but will perform lifting and translational movements, thereby driving the wet curtain 2 installed on the lifting bracket 42 to perform lifting and translational movements.

[0058] The connecting part 421 and the lifting bracket 42 can be an integral structure, which can enhance the connection strength between the connecting part 421 and the lifting bracket 42, reduce the number of parts, and thus simplify the assembly process. Alternatively, the connecting part 421 and the lifting bracket 42 can be a separate assembly structure, that is, the connecting part 421 and the lifting bracket 42 are two parts and fixedly connected, which can simplify the structure and processing of the connecting part 421 and the lifting bracket 42. The connecting part 421 and the lifting bracket 42 can be fixedly connected by screws, clips, adhesives, magnets, etc., and can also be detachably connected by screws, clips, magnets, etc., increasing the detachability and maintainability of the connecting part 421 and the lifting bracket 42.

[0059] In some exemplary embodiments, such as Figures 3-4 , Figures 6-7 As shown, the lifting bracket 42 includes an annular support sidewall 423 and a limiting groove 424 surrounding the support sidewall 423. The limiting groove 424 is connected to one end of the support sidewall 423 near the bottom wall of the water-filling cavity 11, and the connecting part 421 is provided on the outer wall surface of the limiting groove.

[0060] like Figures 3-4 , Figures 9-10 As shown, the wet curtain 2 includes an annular wet curtain sidewall 21, which is sleeved on the support sidewall 423 of the lifting bracket 42, and the first end of the wet curtain sidewall 21 extends into the limiting groove 424 of the lifting bracket 42. The first end of the wet curtain sidewall 21 is configured to be able to move to below or above the water level line of the water chamber 11 under the drive of the driving mechanism.

[0061] In the humidification module 100, the lifting bracket 42 has a supporting side wall 423 and a limiting groove 424. The limiting groove 424 can be arranged around one end of the supporting side wall 423 near the bottom wall of the water-holding cavity 11 (i.e., the lower end of the supporting side wall 423), and the opening of the limiting groove 424 is away from the bottom wall of the water-holding cavity 11, i.e., the opening of the limiting groove 424 faces upward. The wet curtain side wall 21 of the wet curtain 2 can be sleeved on the supporting side wall 423, and the first end (lower end) of the wet curtain side wall 21 can extend into the limiting groove 424 so that the wet curtain side wall 21 can be limited and supported by the limiting groove 424 and the supporting side wall 423.

[0062] When the drive mechanism lowers the wet curtain 2 via the lifting mechanism 4, the first end of the wet curtain sidewall 21 can move below the water level line of the water-filled cavity 11, so that a part of the wet curtain sidewall 21 is submerged in water, so that the wet curtain 2 can absorb water and humidify the air; when the humidification module 100 does not need to humidify the air, the drive mechanism can raise the wet curtain 2 via the lifting mechanism 4, so that the first end of the wet curtain sidewall 21 can move above the rated water level line of the water-filled cavity 11, at which time the wet curtain 2 is not submerged in water.

[0063] In some exemplary embodiments, such as Figure 6 and Figure 7 As shown, the wall of the limiting groove 424 is provided with water passage holes 425. The water passage holes 425 can be provided on the bottom wall of the limiting groove 424 (adjacent to the bottom wall of the water-containing cavity 11), and multiple water passage holes 425 can be provided and evenly distributed along the circumference of the limiting groove 424.

[0064] The water passage 425 serves two purposes. First, when the first end of the wet curtain sidewall 21 moves below the rated water level of the water-holding chamber 11, water in the water-holding chamber 11 can enter the limiting groove 424 through the water passage 425, allowing the first end of the wet curtain sidewall 21 to be submerged in water so that the wet curtain 2 can humidify the air after absorbing water. Second, when the first end of the wet curtain sidewall 21 moves above the water level of the water-holding chamber 11, the water remaining in the limiting groove 424 can flow back into the water-holding chamber 11 through the water passage 425, preventing the first end of the wet curtain sidewall 21 from being soaked in water for a long time due to residual water in the limiting groove 424, which could easily breed bacteria and viruses.

[0065] In some exemplary embodiments, such as Figures 2-4 , Figure 8 As shown, the water tank 1 includes a first air duct 12 extending along its height direction, and the two ends of the first air duct 12 (i.e., the air inlet side and the air outlet side) can be connected to the air inlet 201 and the air outlet 301 respectively.

[0066] The purification module 200 includes a second air duct 202, the air inlet side of which can be connected to the air inlet 201, and the air outlet side of which can be connected to the air outlet 301. The first air duct 12 can be connected to the air inlet 201 through the second air duct 202.

[0067] The power module 300 includes a third air duct 305. The air outlet side of the third air duct 305 can be connected to the air outlet 301, and the air inlet side of the third air duct 305 can be connected to the air outlet side of the first air duct 12, so that the air inlet side of the third air duct 305 and the air inlet 201 can be connected through the first air duct 12 of the humidification module 100 and the second air duct 202 of the purification module 200.

[0068] In this humidifier, the air inlet 201, second air duct 202, first air duct 12, third air duct 305, and air outlet 301 of the purification module 200 are connected sequentially. The fan system 302 is located in the third air duct 305 and includes a backward centrifugal impeller 303 and an impeller motor 304. The backward centrifugal impeller 303 is located on the side of the impeller motor 304 closer to the humidification module 100 and is connected to the motor shaft of the impeller motor 304. The central axes of the impeller motor 304, the backward centrifugal impeller 303, the humidification module 100, and the purification module 200 can be collinear.

[0069] When the impeller motor 304 is working, it can drive the backward centrifugal impeller 303 to rotate, so that the external dry air enters the second air duct 202 through the air inlet 201, and is purified by the purification module 200. Then it can flow to the first air duct 12 and be humidified by the humidification module 100. The purified and humidified air can flow to the third air duct 305 and be discharged from the air outlet 301.

[0070] like Figures 3-4 , Figure 8 As shown, the water-filled cavity 11 is annular and surrounds the first air duct 12, which is adapted to the first air duct 12. The supporting side wall 423 of the lifting bracket 42 is annular and sleeved outside the first air duct 12, so that the lifting bracket 42 can be lifted and displaced relative to the first air duct 12, and the first air duct 12 can guide the lifting and displacement of the lifting bracket 42. The wet curtain side wall 21 of the wet curtain 2 is sleeved outside the supporting side wall 423 of the lifting bracket 42, so that the lifting bracket 42 can drive the wet curtain 2 to extend into the water-filled cavity 11 and be immersed in water, or the lifting bracket 42 can drive the wet curtain 2 to detach from the water in the water-filled cavity 11.

[0071] In some exemplary embodiments, such as Figures 3-4 , Figures 9-10 As shown, the wet curtain 2 also includes a wet curtain end wall 22 disposed at the second end of the wet curtain side wall 21, and the wet curtain end wall 22 is provided with a first ventilation hole 221 communicating with the first air duct 12.

[0072] The wet curtain 2 also includes a wet curtain end wall 22, which is located at the second end of the wet curtain side wall 21 (opposite to the first end of the wet curtain side wall 21, i.e., the upper end of the wet curtain side wall 21). The setting of the wet curtain end wall 22 can enhance the contact area between the airflow and the wet curtain 2, increase the humidification capacity, and ensure the humidification effect.

[0073] The end wall 22 of the wet curtain is provided with a first ventilation hole 221, which can be connected to the first air duct 12 of the water tank 1. The setting of the first ventilation hole 221 allows part of the air flowing out of the first air duct 12 to flow through the wet curtain 2 and be humidified by the wet curtain 2, while the other part can flow directly through the first ventilation hole 221 without being humidified by the wet curtain 2. This helps to reduce the wind resistance of air flow, increase the ventilation volume, and achieve a balance between humidification effect and humidification efficiency.

[0074] In some exemplary embodiments, such as Figure 8 As shown, the air outlet side of the first air duct 12 is provided with an annular support rib 16. The support rib 16 is sleeved in the first air duct 12 and connected to the first air duct 12 through a connecting rib 17. The support rib 16 is configured to support the end wall 22 of the wet curtain when the humidification module 100 is in the humidification state.

[0075] In the water tank 1, a support rib 16 is provided on the air outlet side of the first air duct 12 (e.g., the upper side of the first air duct 12). This support rib 16 can be annular (e.g., circular) and located within the first air duct 12. The support rib 16 and the first air duct 12 are connected by a connecting rib 17 to achieve a fixed connection. When the humidification module 100 is in the humidification state, the support rib 16 supports the end wall 22 of the evaporative cooling pad 2, enhancing the support effect and providing stable support for the evaporative cooling pad 2, preventing deformation or sagging, which would affect the humidification effect on the air. It should be understood that the connecting rib 17 can also support the end wall 22 of the evaporative cooling pad 2 to further enhance the support effect.

[0076] Multiple connecting ribs 17 can be provided, each connecting rib 17 can extend radially along the first air duct 12, and multiple connecting ribs 17 can be arranged circumferentially along the first air duct 12 to enhance the fixing effect on the supporting rib 16 and reduce the impact on airflow.

[0077] In some exemplary embodiments, the end face of the air outlet side of the first air duct 12 and the end faces of the support ribs 16 and the connecting ribs 17 away from the bottom wall of the water-filling cavity 11 are flush, so as to jointly support the end wall 22 of the wet curtain.

[0078] In some exemplary embodiments, the purification module 200 and the humidification module 100 are detachably connected, and the humidification module 100 and the power module 300 are detachably connected, so as to facilitate the disassembly and assembly of the purification module 200, the humidification module 100 and the power module 300, thereby facilitating the transportation and maintenance of the purification module 200, the humidification module 100 and the power module 300.

[0079] In some exemplary embodiments, such as Figure 2 , Figure 11 and Figure 12As shown, the drive mechanism includes a drive component 3 and a transmission seat 5. One end of the transmission seat 5 is connected to the drive component 3, and the other end is detachably connected to the lifting mechanism 4.

[0080] In the drive mechanism, the drive component 3 is connected to the transmission base 5 and can drive the transmission base 5 to move. The transmission base 5 can be connected to the lifting mechanism and can drive the wet curtain 2 to move up and down through the lifting mechanism. The transmission base 5 and the lifting mechanism are detachably connected, which facilitates the detachable connection between the humidification module 100 and the power module 300.

[0081] In some exemplary embodiments, the transmission base 5 is configured to rotate under the drive of the drive component 3, and the other end of the transmission base 5 is provided with a non-circular anti-rotation socket 51 (e.g., Figures 13-15 As shown), one end of the lifting mechanism is equipped with a non-circular anti-rotation plug 411 (as shown). Figure 5 As shown), the anti-rotation plug 411 is detachably inserted into the anti-rotation socket 51.

[0082] The driving component 3 can drive the transmission seat 5 to rotate, making the driving mechanism a rotary driving mechanism capable of outputting rotary motion; the other end of the transmission seat 5 can be connected to the transmission screw 41 of the lifting mechanism 4, and the other end of the transmission screw 41 can be provided with a non-circular (such as elliptical, polygonal (such as triangular, square, pentagonal, hexagonal, etc.) anti-rotation socket 51, etc., and one end of the transmission screw 41 of the lifting mechanism 4 is provided with a non-circular (such as elliptical, polygonal, etc.) anti-rotation plug 411, which is connected to... The anti-rotation socket 51 is shaped to fit the anti-rotation plug 411, allowing it to be inserted into the anti-rotation socket 51 without rotating relative to it. This enables the transmission seat 5 to drive the transmission screw 41 to rotate, thus transmitting power. Furthermore, the anti-rotation plug 411 can be detached from the anti-rotation socket 51, allowing for a detachable connection between the anti-rotation plug 411 and the anti-rotation socket 51. This facilitates the assembly and disassembly of the humidification module 100 and the power module 300, making it convenient for transportation and maintenance of the humidification module 100 and the power module 300.

[0083] In some exemplary embodiments, the driving component 3 may be a drive motor, making the drive mechanism an electric drive mechanism, which facilitates automatic control of the raising and lowering of the evaporative cooling pad 2. For example... Figure 13 and Figure 14 As shown, one end of the transmission base 5 is provided with a motor interface 52, which can be connected to the motor shaft of the drive motor so that the drive motor can drive the transmission base 5 to rotate.

[0084] Of course, the drive component 3 can be a manually driven component, making the drive mechanism a manually driven mechanism. In this way, the wet curtain 2 can be driven to move up and down by manually operating the drive component 3, which simplifies the structure and reduces costs.

[0085] In some exemplary embodiments, in addition to the detachable connection between the drive component 3 and the transmission screw 41 of the lifting mechanism 4, the power module 300 and the humidification module 100 can also be connected by a snap-fit ​​mechanism to achieve a detachable connection between the humidification module 100 and the power module 300. The purification module 200 and the humidification module 100 can also be connected by a snap-fit ​​mechanism to achieve a detachable connection between the purification module 200 and the humidification module 100.

[0086] The purification module 200, humidification module 100 and power module 300 are detachably connected to facilitate the installation and removal of the purification module 200, humidification module 100 and power module 300, thereby facilitating transportation, maintenance or replacement.

[0087] Of course, the purification module 200 and the humidification module 100, and the humidification module 100 and the power module 300 can also be detachably connected in other ways (such as screw connection, magnetic connection), or the purification module 200, the humidification module 100 and the power module 300 can be assembled by direct stacking.

[0088] In some exemplary embodiments, such as Figure 12 As shown, the power module 300 also includes a base 306, which is located on the side of the power module 300 closest to the humidification module 100 (e.g., the base 306 is located on the bottom side of the power module 300). The drive mechanism is located outside the third air duct 305 and is mounted to the outer wall of the third air duct 305 or the base 306.

[0089] The drive mechanism is located outside the third air duct 305 and can be installed on the outer wall of the third air duct 305 or on the base 306 so that the drive mechanism does not affect the ventilation of the third air duct 305 and does not increase the wind resistance.

[0090] In addition, the drive mechanism is located outside the third air duct 305 to isolate the drive mechanism from the humidifying air flowing through the third air duct 305, so that the humidifying air will not pass through the drive mechanism, preventing the drive mechanism from getting damp, which helps to improve the working reliability of the drive mechanism and extend the service life of the drive mechanism.

[0091] In some exemplary embodiments, such as Figure 12 As shown, the drive component 3 and the transmission seat 5 of the drive mechanism are both mounted on the base 306.

[0092] Compared to mounting both the drive component 3 and the transmission base 5 of the drive mechanism to the outer wall of the third air duct 305, mounting both the drive component 3 and the transmission base 5 to the base 306 avoids resonance between the drive mechanism and the fan motor 304 inside the third air duct 305. The drive component 3 and the lifting mechanism 4 are connected through the transmission base 5 so that the driving force of the drive component 3 can be transmitted to the lifting mechanism 4 through the transmission base 5, thereby driving the wet curtain 2 to move.

[0093] In some exemplary embodiments, the humidifier further includes a control panel, which has a self-cleaning button for controlling the humidification module 100 to switch to a non-humidification state.

[0094] The humidifier also includes a control panel, which can control the operation of the fan system and the drive component 3 of the drive mechanism via a controller. The control panel is equipped with a self-cleaning button. By operating (e.g., pressing) the self-cleaning button, the controller can control the drive component 3 of the drive mechanism to operate, and drive the wet curtain 2 to rise to a position higher than the water level in the water chamber 11 of the water tank 1, so that the humidification module 100 switches to a non-humidification state, allowing the wet curtain 2 to dry and be cleaned.

[0095] By setting this self-cleaning button, users can easily turn on or off the function of drying and cleaning the wet curtain 2.

[0096] In some exemplary embodiments, such as Figure 9 As shown, the bottom wall of the water tank 1 is provided with a second ventilation hole 14 and a partition 15 surrounding the second ventilation hole 14. The partition 15, the bottom wall of the water tank 1 and the side wall of the water tank 1 cooperate to form a water-holding cavity 11. The inner cavity of the partition 15 is connected to the second ventilation hole 14 to form a first air duct 12. Figure 6 and Figure 7 The supporting sidewall 423 of the lifting bracket 42 shown can be fitted over the partition 15.

[0097] The second ventilation hole 14 on the bottom wall of the water tank 1, together with the annular partition 15 surrounding the second ventilation hole 14, forms the first air duct 12 of the water tank 1, allowing air to flow through the first air duct 12. The annular partition 15, the annular side wall of the water tank 1, and the bottom wall of the water tank 1 together form a water-holding cavity 11, which is annular and surrounds the first air duct 12. The supporting side wall 423 of the lifting bracket 42 is fitted over the partition 15, so that the supporting side wall 423 can be fitted over the first air duct 12 and placed inside the water-holding cavity 11, so that the wet curtain 2 installed on the lifting bracket 42 can be immersed in the water in the water-holding cavity 11 to absorb water and humidify the air flowing out of the first air duct 12.

[0098] In some exemplary embodiments, the wet curtain 2 may be a paper wet curtain or a fabric wet curtain.

[0099] The wet curtain 2 can humidify the air through natural evaporation. Paper or fabric wet curtains have good water absorption and ventilation, making it convenient to humidify the air.

[0100] Of course, the wet curtain 2 is not limited to paper or fabric wet curtains; it can also be made of other materials.

[0101] In some exemplary embodiments, such as Figure 2As shown, the purification module 200 includes a purification component disposed in the second air duct 202. The purification component may include an annular purification filter element 203. A grille-shaped air inlet 201 is provided on the side wall of the purification module 200.

[0102] When the fan system 302 of the power module 300 is working, it can draw air into the second air duct 202 from the air inlet 201. The drawn air can be purified and filtered by the purification filter element 202 and then flow to the first air duct 12 of the humidification module 100 so that the humidification module 100 can humidify the air. The purified and humidified air flows to the third air duct 305 of the power module 300 and is finally discharged from the air outlet 301.

[0103] The working principle of the humidifier in this embodiment of the invention is as follows.

[0104] like Figure 16 As shown, when the humidifier is powered on and the humidification and purification function is activated, the drive component (drive motor) 3 automatically starts under the control of the controller. The drive component 3 drives the transmission seat 5 and the transmission screw 41 to rotate. Under the threaded engagement of the transmission screw 41 and the threaded hole 422 of the lifting bracket 42, the wet curtain 2 descends a certain distance using the partition 15 of the water tank 1 as a guide rail until it touches the bottom of the water chamber 11. At this time, water can pass through the water passage hole of the lifting bracket 42 to wet the wet curtain 2. Subsequently, the controller controls the fan motor 304 of the fan system 302 to start. Under the action of the fan system 302, the airflow passes through the purification module 200 and the wet curtain 2 to achieve humidification and purification of the air.

[0105] When the humidification and purification function is turned off (e.g., when the self-cleaning button is pressed), the drive component (drive motor) 3 automatically rotates in the opposite direction under the control of the controller. The drive component 3 drives the transmission seat 5 and the transmission screw 41 to rotate in the opposite direction. Under the threaded engagement of the transmission screw 41 and the threaded hole 422 of the lifting bracket 42, the wet curtain 2 rises a certain distance using the partition 15 of the water tank as a guide rail, until the wet curtain 2 rises above the water level line of the water chamber 11. The water in the wet curtain 2 and the limiting groove 424 can be filtered down naturally, realizing the self-cleaning of the wet curtain 2.

[0106] Example 2:

[0107] This embodiment provides a humidifier, the main difference from Embodiment 1 being the lifting mechanism 4.

[0108] like Figure 17 and Figure 18 As shown, in this embodiment, the lifting mechanism includes a rotating component and a lifting bracket 42.

[0109] Among them, such as Figure 17As shown, the rotating component includes a turntable 43 and a transmission rod 44. The rotation axis of the turntable 43 extends along the height direction of the water tank 1. The side wall of the turntable 43 is provided with a guide platform 431. The guide platform 431 includes a first limiting surface 4311, a guide surface 4313, and a second limiting surface 4312 connected in sequence. The first limiting surface 4311 and the second limiting surface 4312 both extend along the circumference of the turntable 43 and are offset in the circumference of the turntable 43. The first limiting surface 4311 and the second limiting surface 4312 have an axial interval along the axis of the turntable 43, so that the guide platform 431 is Z-shaped.

[0110] One end of the transmission rod 44 is connected to the turntable 43, and the other end is connected to the drive mechanism. The drive mechanism is configured to drive the turntable 43 to rotate.

[0111] The evaporative cooling pad 2 is installed onto the lifting bracket 42. (Example:) Figure 18 As shown, the lifting bracket 42 is provided with a limiting part 426. The limiting part 426 is configured to move along the guide platform 431 when the turntable 43 rotates. When the limiting part 426 abuts against the first limiting surface 4311, the humidification module 100 is in a humidification state. When the limiting part 426 abuts against the second limiting surface 4312, the humidification module 100 is in a non-humidification state.

[0112] In this lifting mechanism, the turntable 43 is connected to the drive mechanism through the transmission rod 44, so that the turntable 43 can rotate around its own axis under the drive of the drive mechanism. The axis of the turntable 43 extends along the height direction (i.e., the vertical direction) of the water tank 1. The turntable 43 is provided with a Z-shaped guide platform 431. The Z-shaped guide platform 431 includes a first limiting surface 4311, a second limiting surface 4312, and a guide surface 4313 connecting the first limiting surface 4311 and the second limiting surface 4312. The first limiting surface 4311 and the second limiting surface 4312 both extend along the circumference of the turntable 43, and the first limiting surface 4311 and the second limiting surface 4312 can be parallel to each other. The first limiting surface 4311 and the second limiting surface 4312 are spaced apart in the axial direction of the turntable 43 (axial spacing), and the first limiting surface 4311 and the second limiting surface 4312 are staggered in the circumferential direction of the turntable 43, that is, the projections of the first limiting surface 4311 and the second limiting surface 4312 in the circumferential direction of the turntable 43 do not coincide. Therefore, there is a circumferential spacing between the first limiting surface 4311 and the second limiting surface 4312. The first limiting surface 4311 and the second limiting surface 4312 have an axial gap and a circumferential gap, such that the guide surface 4313 connecting the first limiting surface 4311 and the second limiting surface 4312 is an inclined guide surface 4313, and the two ends of the guide surface 4313 are smoothly connected to the first limiting surface 4311 and the second limiting surface 4312 respectively.

[0113] In conjunction with the guide platform 431, the lifting bracket 42 is provided with a limiting part 426, which can abut against the guide platform 431. In addition, an axial guide structure can be provided between the lifting bracket 42 and the water tank 1, so that the lifting bracket 42 can only reciprocate along the axial direction of the turntable 43. Therefore, when the drive mechanism drives the turntable 43 to rotate through the transmission rod 44, the limiting part 426 can slide along the guide platform 431 and slide from the first limiting surface 4311 through the guide surface 4313 to the second limiting surface 4312, or from the second limiting surface 4312 through the guide surface 4313 to the first limiting surface 4311. Since there is an axial gap between the first limiting surface 4311 and the second limiting surface 4312, when the limiting part 426 slides onto the first limiting surface 4311, that is, when the limiting part 426 abuts against the first limiting surface 4311, the first end (lower end) of the wet curtain 2 can extend below the water level line of the water-holding cavity 11. At this time, part of the wet curtain 2 is immersed in water, and the humidification module 100 is in the humidification state. When the limiting part 426 slides onto the second limiting surface 4312, that is, when the limiting part 426 abuts against the second limiting surface 4312, the first end (lower end) of the wet curtain 2 can rise above the water level line of the water-holding cavity 11. At this time, the wet curtain 2 is not immersed in water, thus avoiding the wet curtain 2 from being immersed in water for a long time.

[0114] Through the cooperation of the limiting part 426 and the guide table 431, and the axial guiding structure between the lifting bracket 42 and the water tank 1, the rotational motion of the turntable 43 can be converted into the lifting motion of the lifting bracket 42, thereby driving the wet curtain 2 to move up and down. Of course, other structures can also be used to convert the rotational motion of the turntable 43 into the lifting motion of the lifting bracket 42.

[0115] In some exemplary embodiments, such as Figure 18 As shown, the axial guide structure between the lifting bracket 42 and the water tank 1 includes a guide hole 427 provided on the lifting bracket 42 and a guide column (not shown) provided on the water tank 1. The axes of the guide hole 427 and the guide column extend along the axial direction of the turntable 43 (i.e., the height direction of the water tank 1, the vertical direction). The guide column can be inserted into the guide hole 427 and can move axially relative to the guide hole 427, so that under the guiding action of the guide hole 427 and the guide column, the lifting bracket 42 can only reciprocate along the axial direction of the turntable 43.

[0116] like Figure 18 As shown, multiple guide holes 427 can be provided and spaced apart along the circumference of the lifting bracket 42; correspondingly, guide columns can be located inside the water-filling cavity 11, and multiple guide columns can be provided and spaced apart along the circumference of the water-filling cavity 11. Of course, guide columns can also be provided on the lifting bracket 42, and guide holes can be provided on the water tank 1.

[0117] In some exemplary embodiments, such as Figure 17As shown, the axial distance h2 between the first limiting surface 4311 and the second limiting surface 4312 is greater than the height difference between the rated water level line of the water-filling cavity 11 and the bottom wall of the water-filling cavity 11.

[0118] The axial distance between the first limiting surface 4311 and the second limiting surface 4312 is h2. When the limiting part 426 switches from contacting the first limiting surface 4311 to contacting the second limiting surface 4312, the moving stroke of the lifting bracket 42 and the wet curtain 2 is equal to h2. This makes the moving stroke of the wet curtain 2 greater than the height difference between the rated water level line of the water chamber 11 and the bottom wall of the water chamber 11. This ensures that when the humidification module 100 is in a non-humidification state, the first end (lower end) of the wet curtain 2 can be raised above the rated water level line of the water chamber 11, and the wet curtain 2 will not be soaked in water, thus avoiding the long-term soaking of the wet curtain 2 in water.

[0119] In some exemplary embodiments, such as Figure 17 As shown, the side wall of the turntable 43 is also provided with a first stop surface 4314 and a second stop surface 4315. One end of the first stop surface 4314 is connected to the end of the first limiting surface 4311 away from the second limiting surface 4312, and the other end extends along the axial direction of the turntable 43 toward the side where the second limiting surface 4312 is located. One end of the second stop surface 4315 is connected to the end of the second limiting surface 4312 away from the first limiting surface 4311, and the other end extends along the axial direction of the turntable 43 toward the side away from the first limiting surface 4311.

[0120] The turntable 43 is also provided with a first stop surface 4314 and a second stop surface 4315 extending along the axial direction. One end of the first stop surface 4314 is connected to the end of the first limiting surface 4311 away from the second limiting surface 4312, and one end of the second stop surface 4315 is connected to the end of the second limiting surface 4312 away from the first limiting surface 4311. The first stop surface 4314 and the second stop surface 4315 can stop and limit the limiting part 426 when the turntable 43 rotates, preventing the limiting part 426 from disengaging from the end of the first limiting surface 4311 away from the second limiting surface 4312, and preventing the limiting part 426 from disengaging from the end of the second limiting surface 4312 away from the first limiting surface 4311, thus ensuring the stability of the cooperation between the limiting part 426 and the guide table 431.

[0121] In some exemplary embodiments, such as Figure 17 and Figure 18 As shown, the guide platform 431, the first stop surface 4314 and the second stop surface 4315 are disposed on the outer wall of the turntable 43, and the transmission rod 42 is connected to the outer wall of the turntable 43; the lifting bracket 42 is sleeved on the outside of the turntable 43, and the limiting part 426 includes a limiting protrusion disposed on the inner wall of the lifting bracket 42.

[0122] It should be understood that the lifting mechanism is not limited to the embodiments described in Embodiment 1 and Embodiment 2 above, and may also be in other forms.

[0123] For example, in some exemplary embodiments, the lifting mechanism may include an automatic telescopic locking mechanism having an extended state and a retracted state. One end of the automatic telescopic locking mechanism is connected to the drive mechanism, and the other end is connected to the evaporative cooling pad. The automatic telescopic locking mechanism is configured to switch between the extended state and the retracted state under the drive of the drive mechanism, thereby switching the humidification module between a humidification state and a non-humidification state.

[0124] This automatic telescopic locking mechanism has an extended state and a retracted state, and can lock itself in either state. By pressing the drive mechanism, the automatic telescopic locking mechanism can switch between these two states. For example, when the automatic telescopic mechanism is in the retracted state, pressing the drive mechanism switches it to the extended state and maintains that state; pressing the drive mechanism again switches it to the retracted state and maintains that state. The drive mechanism can be manual or electric.

[0125] When the automatic telescopic locking mechanism switches between the extended and retracted states, it can drive the wet curtain to move up and down, thus enabling the humidification module to switch between humidification and non-humidification states.

[0126] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0127] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0128] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0129] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0130] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0131] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A humidifier, characterized in that, The device includes an air handling module and a power module connected to each other. The air handling module includes an air inlet and a humidification module. The power module includes an air outlet, a fan system, and a drive mechanism. The air inlet and the air outlet are connected. The fan system is configured to drive airflow when it is working. The humidification module includes a water tank with a water-holding cavity, a wet curtain, and a lifting mechanism. The lifting mechanism connects the drive mechanism and the wet curtain. The drive mechanism is configured to drive the wet curtain to move up and down through the lifting mechanism, so that the humidification module can switch between a humidification state and a non-humidification state. In the humidification state, part of the wet curtain extends below the water level line of the water-holding cavity. In the non-humidification state, the wet curtain rises above the water level line of the water-holding cavity. The lifting mechanism includes a transmission screw and a lifting bracket, and the outer wall of the lifting bracket is provided with a protruding connecting part; The lifting bracket includes an annular support sidewall and a limiting groove surrounding the support sidewall. The limiting groove is connected to one end of the support sidewall near the bottom wall of the water-holding cavity, and the groove wall of the limiting groove is provided with a water passage hole. The connecting part is disposed on the outer wall surface of the limiting groove. The wet curtain includes an annular wet curtain sidewall, which is sleeved outside the supporting sidewall, with its first end extending into the limiting groove. The first end of the wet curtain sidewall is configured to be able to move to below or above the water level line of the water-holding cavity under the drive of the driving mechanism.

2. The humidifier according to claim 1, characterized in that, The drive mechanism is a rotary drive mechanism capable of outputting rotational motion, and the lifting mechanism is configured to convert the rotational motion output by the drive mechanism into the linear motion of the wet curtain.

3. The humidifier according to claim 2, characterized in that, The transmission screw is provided with external threads, and one end is connected to the drive mechanism; The lifting bracket is provided with a threaded hole for the transmission screw to pass through, and the wet curtain is installed to the lifting bracket; The drive mechanism is configured to drive the transmission screw to rotate, and drive the lifting bracket and the wet curtain to rise and fall.

4. The humidifier according to claim 3, characterized in that, The bottom wall of the water-filled cavity is provided with a support seat, and the other end of the transmission screw is rotatably supported on the support seat.

5. The humidifier according to claim 3, characterized in that, The connecting part and the lifting bracket are either an integral structure or a separate assembly structure, and the threaded hole is provided in the connecting part.

6. The humidifier according to claim 1, characterized in that, The water tank also includes a first air duct extending along its height direction, with both ends of the first air duct connected to the air inlet and the air outlet, respectively. The water-holding cavity is annular and surrounds the first air duct, and the supporting sidewall is sleeved outside the first air duct; The wet curtain also includes a wet curtain end wall disposed at the second end of the side wall of the wet curtain, and the wet curtain end wall is provided with a first ventilation hole communicating with the first air duct.

7. The humidifier according to claim 6, characterized in that, The first air duct has an annular support rib on its air outlet side. The support rib is sleeved inside the first air duct and connected to the first air duct via a connecting rib. The support rib is configured to support the end wall of the wet curtain when the humidification module is in the humidification state.

8. The humidifier according to claim 1, characterized in that, The lifting mechanism includes an automatic telescopic locking mechanism, which has an extended state and a retracted state. One end of the automatic telescopic locking mechanism is connected to the drive mechanism, and the other end is connected to the wet curtain. The automatic telescopic locking mechanism is configured to switch between the extended state and the retracted state under the drive of the drive mechanism, so that the humidification module switches between the humidification state and the non-humidification state.

9. The humidifier according to any one of claims 1 to 8, characterized in that, The power module also includes a third air duct and a base. The air outlet side of the third air duct is connected to the air outlet, and the air inlet side of the third air duct is connected to the air inlet. The base is located on the side of the power module closer to the humidification module. The drive mechanism is located outside the third air duct and is installed on the outer wall of the third air duct or the base.

10. The humidifier according to claim 9, characterized in that, The driving mechanism includes a driving component and a transmission base. Both the driving component and the transmission base are mounted on the base, and the driving component and the lifting mechanism are connected through the transmission base.

11. The humidifier according to claim 9, characterized in that, The drive mechanism includes a drive component and a transmission base. One end of the transmission base is connected to the drive component, and the other end is detachably connected to the lifting mechanism.

12. The humidifier according to claim 11, characterized in that, The transmission seat is configured to rotate under the drive of the driving component, and the other end of the transmission seat is provided with a non-circular anti-rotation socket. One end of the lifting mechanism is provided with a non-circular anti-rotation plug, and the anti-rotation plug is detachably inserted into the anti-rotation socket.

13. The humidifier according to any one of claims 1 to 8, characterized in that, The air handling module further includes a purification module, which is located on the side of the humidification module away from the power module, and the purification module includes the air inlet.

14. The humidifier according to claim 13, characterized in that, The humidification module and the purification module are detachably connected; The humidification module and the power module are detachably connected.

15. The humidifier according to any one of claims 1 to 8, characterized in that, Also includes: The control panel is equipped with a self-cleaning button for controlling the humidification module to switch to the non-humidification state.

16. A humidifier, characterized in that, The device includes an air handling module and a power module connected to each other. The air handling module includes an air inlet and a humidification module. The power module includes an air outlet, a fan system, and a drive mechanism. The air inlet and the air outlet are connected. The fan system is configured to drive airflow when it is working. The humidification module includes a water tank with a water-holding cavity, a wet curtain, and a lifting mechanism. The lifting mechanism connects the drive mechanism and the wet curtain. The drive mechanism is configured to drive the wet curtain to move up and down through the lifting mechanism, so that the humidification module can switch between a humidification state and a non-humidification state. In the humidification state, part of the wet curtain extends below the water level line of the water-holding cavity. In the non-humidification state, the wet curtain rises above the water level line of the water-holding cavity. The lifting mechanism includes a rotating component and a lifting support. The rotating component includes a turntable and a transmission rod. The rotation axis of the turntable extends along the height direction of the water tank. The side wall of the turntable is provided with a guide platform. The guide platform includes a first limiting surface, a guide surface, and a second limiting surface connected in sequence. The first limiting surface and the second limiting surface both extend along the circumference of the turntable and are offset in the circumference of the turntable. The first limiting surface and the second limiting surface have an axial gap along the axis of the turntable. One end of the transmission rod is connected to the turntable, and the other end is connected to the drive mechanism. The drive mechanism is configured to drive the turntable to rotate. The wet curtain is installed on the lifting bracket, and the lifting bracket is provided with a limiting part. The limiting part is configured to move along the guide platform when the turntable rotates. When the limiting part abuts against the first limiting surface, the humidification module is in the humidification state, and when the limiting part abuts against the second limiting surface, the humidification module is in the non-humidification state.

17. The humidifier according to claim 16, characterized in that, The power module also includes a third air duct and a base. The air outlet side of the third air duct is connected to the air outlet, and the air inlet side of the third air duct is connected to the air inlet. The base is located on the side of the power module closer to the humidification module. The drive mechanism is located outside the third air duct and is installed on the outer wall of the third air duct or the base.

18. The humidifier according to claim 17, characterized in that, The driving mechanism includes a driving component and a transmission base. Both the driving component and the transmission base are mounted on the base, and the driving component and the lifting mechanism are connected through the transmission base.

19. The humidifier according to claim 17, characterized in that, The drive mechanism includes a drive component and a transmission base. One end of the transmission base is connected to the drive component, and the other end is detachably connected to the lifting mechanism.

20. The humidifier according to claim 19, characterized in that, The transmission seat is configured to rotate under the drive of the driving component, and the other end of the transmission seat is provided with a non-circular anti-rotation socket. One end of the lifting mechanism is provided with a non-circular anti-rotation plug, and the anti-rotation plug is detachably inserted into the anti-rotation socket.

21. The humidifier according to claim 16, characterized in that, The air handling module further includes a purification module, which is located on the side of the humidification module away from the power module, and the purification module includes the air inlet.

22. The humidifier according to claim 21, characterized in that, The humidification module and the purification module are detachably connected; The humidification module and the power module are detachably connected.

23. The humidifier according to claim 16, characterized in that, Also includes: The control panel is equipped with a self-cleaning button for controlling the humidification module to switch to the non-humidification state.

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