Humidifier

Abstract

The utility model provides a humidifier. The humidifier comprises an air duct cavity and a humidifier body, the top cover is arranged at the air outlet end of the air duct cavity, and a water adding opening and an air outlet hole communicated with the interior of the air duct cavity are formed in the top cover; the mounting support is located in the air duct cavity, and a first blocking rib protruding in the direction away from the top cover is arranged on the mounting support; the motor is mounted on the mounting bracket, and a driving shaft is arranged at one end, away from the top cover, of the motor; and the wind wheel is connected with the driving shaft, can be driven by the driving shaft to rotate and comprises a second blocking rib, and the second blocking rib is located on the inner side of the first blocking rib in the radial direction of the wind wheel. According to the arrangement, the second blocking rib of the wind wheel can be wrapped by the first blocking rib of the mounting bracket, so that water can flow downwards along the water blocking rib and cannot enter the top of the wind wheel when the water is added into the air duct, and the probability that the water in the air duct is in contact with the motor can be reduced; and phenomena of rusting of a motor bearing, corrosion of a motor circuit board and the like caused by contact between the motor and water are reduced.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular, to a humidifier. Background Art

[0002] Humidifiers in related solutions, such as evaporative humidifiers, have their air outlet and water inlet arranged relatively close to each other. When adding water, users may mistakenly add water to the air outlet, while adding water into the air duct may easily cause water to come into contact with the motor, which may easily cause problems such as rust on the motor bearings and corrosion on the motor circuit board, resulting in abnormal noise from the motor or the motor not rotating, affecting the user experience and increasing after-sales costs.

[0003] Therefore, how to design a humidifier in which the motor and water are not easily in contact even if the user adds water into the air duct has become a problem that needs to be solved urgently. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, the utility model object of the present application is to provide a humidifier.

[0006] The technical solution of the present application provides a humidifier, comprising: an air duct cavity; a top cover, arranged at the air outlet end of the air duct cavity, the top cover being provided with a water inlet and an air outlet hole connected to the air duct cavity; a mounting bracket, located in the air duct cavity, the mounting bracket being provided with a first retaining rib protruding in a direction away from the top cover; a motor, mounted on the mounting bracket, the end of the motor away from the top cover being provided with a drive shaft; a wind wheel, connected to the drive shaft and capable of rotating under the drive of the drive shaft, the wind wheel comprising a second retaining rib, and the second retaining rib being located on the inner side of the first retaining rib along the radial direction of the wind wheel.

[0007] According to the humidifier provided in the present application, it includes an air duct cavity, a top cover, a mounting bracket, a motor and a wind wheel. Among them, an air duct is arranged in the air duct cavity, and the air duct is used to discharge the humidified air to the outside. An air outlet is arranged on the top cover, and a grille structure is arranged in the air outlet, or the entire top cover is an air outlet grille. A part of the air outlet grille is used for air outlet, and another part of the air outlet grille is used as a water inlet to add water to the humidifier. An exhaust device is arranged in the air duct cavity, and the exhaust device specifically includes a motor assembly and a wind wheel. The motor assembly is used to drive the wind wheel to rotate, and a circulating airflow can be generated by the rotation of the wind wheel, so that the external gas can be first sucked into the humidifier, and the gas is gradually discharged into the air through the air outlet after humidification, so that the air can be humidified. The motor assembly specifically includes a motor and a mounting bracket for supporting and mounting the motor. At the same time, a first retaining rib is provided on the mounting bracket, and a second retaining rib is provided on the wind wheel, and the first retaining rib and the second retaining rib overlap along the axial part of the motor, and the first retaining rib is on the outside, and the second retaining rib is on the inside. With this arrangement, the first retaining rib of the mounting bracket can wrap the second retaining rib of the wind wheel, so that when water is added to the air duct, the water will flow down along the retaining rib and will not enter the top of the wind wheel, thereby reducing the probability of contact between water in the air duct and the motor, reducing the occurrence of rusting of the motor bearing and corrosion of the motor circuit board caused by contact between the motor and water, and reducing the probability of abnormal noise or non-rotation of the motor, thereby improving the user experience of the user and reducing the after-sales cost.

[0008] At the same time, by setting the first retaining rib and the second retaining rib, a double-layer waterproof structure can be formed. This can prevent the wind wheel from picking up water when the wind wheel rotates, and the water can enter the top of the wind wheel from the gap between the first retaining rib and the wind wheel, thereby achieving a better waterproof effect.

[0009] In any of the above embodiments, optionally, the first retaining ribs are arranged in a ring shape along the circumference of the motor, and / or the second retaining ribs are arranged in a ring shape along the circumference of the wind wheel.

[0010] In this technical solution, in order to better wrap the wind wheel with the mounting bracket, the first retaining rib and the second retaining rib are preferably arranged in an annular structure. Of course, in other embodiments, the first retaining rib and the second retaining rib may also be arranged in a non-annular structure.

[0011] In any of the above embodiments, optionally, the humidifier further includes: a waterproof cover, which is located in the air duct cavity, installed at the end of the motor away from the top cover, and forms a accommodating cavity with the mounting bracket, the motor is installed in the accommodating cavity, and the waterproof cover is provided with a through hole connected to the accommodating cavity, and the driving shaft can extend from the through hole; a sealing gasket, installed between the waterproof cover and the motor, and used for sealing the gap between the accommodating cavity and the through hole and / or the gap between the waterproof cover and the motor.

[0012] In this technical solution, a waterproof cover is provided on the driving side of the motor, and the driving side of the motor can be protected by the waterproof cover to prevent external water from entering the inside of the motor from the driving side. At the same time, the waterproof cover is provided with a through hole for avoiding the drive shaft, so that the drive shaft can pass through the waterproof cover through the through hole to connect with the wind wheel, thereby driving the wind wheel to rotate. Furthermore, a sealing gasket is also provided between the waterproof cover and the motor. Through the sealing gasket, on the one hand, the gap between the through hole and the drive shaft can be sealed to prevent water in the air duct from entering the inside of the motor along the drive shaft. On the other hand, the gap between the waterproof cover and the motor can also be sealed to prevent water entering the inside of the waterproof cover from entering the inside of the motor. This solution can further enhance the waterproof effect of the motor by providing a waterproof cover and a sealing gasket.

[0013] In any of the above embodiments, optionally, one of the first protrusion and the first groove is provided on the mounting bracket, and the other of the first protrusion and the first groove is provided on the waterproof cover, and the first protrusion is limitedly installed in the first groove to connect the mounting bracket and the waterproof cover.

[0014] In this technical solution, the mounting bracket and the waterproof cover are interconnected, and a relatively closed accommodating cavity is formed between the two. The motor is arranged in the accommodating cavity, which can be isolated from the air duct, thereby enhancing the waterproof effect of the motor. At the same time, the mounting bracket and the waterproof cover are connected by the cooperation of the first protrusion and the first groove. This connection structure has a certain waterproof ability and can prevent water from entering the motor from the connection to a certain extent.

[0015] At the same time, in order to ensure the connection reliability and waterproof reliability of the connection structure between the mounting bracket and the waterproof cover, the first protrusion and the first groove can be arranged in a ring shape around the circumference of the waterproof cover. For example, a circle of first protrusions or first grooves can be arranged around the entire circumference of the mounting bracket, and at the same time, a circle of first grooves or first protrusions can be arranged around the entire circumference of the waterproof cover.

[0016] Exemplarily, the mounting bracket and the waterproof cover are connected by a double stopper. Further, the double stopper between the mounting bracket and the waterproof cover is arranged in a ring shape around the circumference of the waterproof cover.

[0017] In any of the above embodiments, the sealing gasket may be provided with a plurality of mounting holes. During installation, the sealing gasket may be positioned and installed through the mounting holes, for example, the sealing gasket may be installed and positioned on the motor or the waterproof cover through screws or bolts.

[0018] In any of the above embodiments, optionally, at least one first rib is provided on the surface of the sealing gasket close to the waterproof cover, the first rib is arranged in a ring shape around the hole, and the first rib is compressed and arranged between the waterproof cover and the motor.

[0019] In this technical solution, the elasticity of the sealing gasket can be enhanced by providing the first convex rib, so that the sealing effect of the sealing gasket can be enhanced by the elastic deformation of the first convex rib. During installation, the sealing gasket can be pressed and installed between the motor and the waterproof cover to ensure that the sealing gasket is always in a compressed state. The first convex rib is arranged in a ring shape, which can achieve sealing in all directions, thereby ensuring the sealing effect of the sealing gasket.

[0020] In any of the above embodiments, optionally, the compression amount of the first convex rib is greater than or equal to 0.5 mm. The compression amount of the first convex rib cannot be too small, otherwise it will lead to insufficient elastic deformation of the first convex rib, resulting in poor sealing effect of the sealing gasket. The compression amount of the first convex rib cannot be too large, otherwise the sealing gasket is easily damaged. Therefore, in the actual process, the compression amount of the first convex rib can be set in the range of 0.5 mm-3 mm.

[0021] In any of the above embodiments, optionally, there are multiple first convex ribs, and the multiple first convex ribs are arranged at intervals along the radial direction of the via hole. The multiple first convex ribs can achieve multi-layer waterproofing, thereby ensuring the waterproof effect of the sealing gasket.

[0022] In any of the above embodiments, the humidifier may further include: a water receiving tray disposed in the air duct cavity for receiving water from the water inlet, the water receiving tray being provided with one of a second protrusion and a second groove. The top cover is provided with the other of the second protrusion and the second groove, and the second protrusion is limitedly installed in the second groove.

[0023] In this technical solution, a water receiving tray is arranged in the air duct cavity, and a gap is arranged between the inner wall of the air duct cavity and the water receiving tray to ensure that the wind can flow from one side of the water receiving tray to the other side, so as to avoid the water receiving tray blocking the air duct. The water added through the water inlet can be received by the water receiving tray. The water received by the water receiving tray can be used to humidify the air flow flowing in the humidifier to produce humid gas. At the same time, the water receiving tray and the top cover are interconnected, so that a circle of waterproof structure can be formed around the water receiving tray to avoid water leaking from the water receiving tray to the air duct when adding water.

[0024] Exemplarily, the water tray and the top cover are connected by a double stop.

[0025] In any of the above embodiments, optionally, the humidifier also includes: a water receiving tray, arranged in the air duct cavity, for receiving water from the water inlet, and a third barrier rib is arranged on the water receiving tray; a fourth barrier rib is arranged on the mounting bracket, and the third barrier rib is arranged on the outside of the fourth barrier rib along the radial direction of the wind wheel.

[0026] In this technical solution, the water receiving tray and the mounting bracket are connected by the third and fourth retaining ribs. The third and fourth retaining ribs form a single stop. This structure enables the water receiving tray to wrap around the mounting bracket, ensuring that even if there is water on the outer wall of the water receiving tray, it will not enter between the motor and the mounting bracket from the connection between the water receiving tray and the mounting bracket, and then contact the motor. This setting can further ensure the waterproof effect of the motor through the connection between the water receiving tray and the mounting bracket.

[0027] In any of the above embodiments, optionally, an air duct bottom plate is provided at the air inlet end of the air duct cavity, and at least one first drainage hole is provided on the air duct bottom plate.

[0028] In this technical solution, a duct bottom plate is provided at the bottom of the duct cavity, and a first drain hole is provided on the duct bottom plate. Water entering the duct can flow to the duct bottom plate and then be discharged through the first drain hole of the duct bottom plate. The water discharged from the first drain hole can be directly discharged to the outside as waste water, or it can be discharged into a water tank as recycled water to humidify the airflow. This arrangement can timely discharge the water at the bottom of the duct cavity to avoid water accumulation at the bottom of the duct cavity, which can prevent the water from being thrown onto the motor when the impeller runs at high speed when the humidifier is working.

[0029] In any of the above embodiments, optionally, a second rib is provided on the air duct bottom plate, and the second rib is arranged in a ring shape along the circumference of the air duct bottom plate. A plurality of air inlet holes are provided on the air duct bottom plate, and the plurality of air inlet holes are located on the inner side of the second rib. A drainage gap is provided on the second rib to connect the inner area and the outer area of ​​the second rib.

[0030] In this technical solution, a second convex rib is provided on the bottom plate of the air duct, and the air inlet holes are all provided in the inner area surrounded by the second convex rib. The second convex rib is provided to help reduce the noise in the air duct cavity. At the same time, a notch is provided on the second convex rib, and the notch allows the inner area and the outer area of ​​the second convex rib to be connected, so that the water in the inner area of ​​the second convex rib can be discharged to the outer area through the notch, and then discharged from the first drainage hole.

[0031] Exemplarily, the first drainage hole is located outside the second rib.

[0032] In any of the above embodiments, optionally, the wind wheel includes a mounting plate, a shaft sleeve and a plurality of blades, the mounting plate is provided with a through hole which penetrates the shaft sleeve, the driving shaft can extend into the shaft sleeve through the through hole and be drivingly connected to the shaft sleeve, the plurality of blades are mounted on a surface of the mounting plate away from the motor, and the second rib is provided on a surface of the mounting plate close to the motor.

[0033] In this technical solution, the mounting plate is connected to the drive shaft through a sleeve. By setting the sleeve, the connection area between the wind wheel and the drive shaft can be ensured to ensure the connection strength between the two. Of course, the sleeve can also be omitted, and the drive shaft can be directly connected by driving through the mounting plate. The function of the mounting plate is to connect multiple blades into one. The second retaining rib is set on the back side of the mounting plate, that is, the side away from the blades.

[0034] Further, a second drain hole is provided on one end of the mounting plate close to the shaft sleeve. The water falling on the top of the wind rotor can be drained away as soon as possible through the second drain hole to avoid water accumulation on the top of the wind rotor.

[0035] Exemplarily, the second drainage hole is elliptical, so that the area of ​​the second drainage hole can be increased as much as possible so that the wind wheel can drain water in time.

[0036] In any of the above embodiments, optionally, the humidifier further includes: a humidifying cavity, which is arranged at the air inlet end of the air duct cavity, and the humidifying cavity is provided with an air inlet hole connected to the air duct cavity; a humidifying element, which is arranged in the humidifying cavity and corresponds to the air inlet hole, and is used to humidify the airflow entering the humidifying cavity from the air inlet hole, and the humidified air can flow into the air duct cavity under the action of the wind wheel. Optionally, the humidifier further includes: a water tank, which is used to supply water to the humidifying element. In any of the above embodiments, optionally, the humidifier further includes: a water discharge channel, which is used to connect the water tank and the water inlet. The water discharge channel includes a water passage, which is arranged on the inner wall of the air duct cavity, and is an integrated structure with the air duct cavity or detachably connected to the air duct cavity.

[0037] In this technical solution, the external gas can enter the humidification cavity through the air inlet under the action of the wind wheel. The humidification element is arranged in the humidification cavity to humidify the airflow entering the air duct cavity. The humidified airflow enters the air duct cavity from the connection between the humidification cavity and the air duct cavity. The water tank is used to store water to supply water to the humidification element. For example, water can be pumped into the humidification element by a pump to achieve humidification of the humidification element.

[0038] Furthermore, an air flow channel is provided inside the humidifier, and the gas entering through the air inlet hole can pass through the humidifier, enter the interior of the humidifier, and then flow to the air duct cavity through the air flow channel provided inside the humidifier, thereby achieving the effect of the humidification cavity conveying the humidified airflow to the air duct cavity.

[0039] The down-water channel is used to connect the water inlet and the water tank so that water can be directly added to the water tank. When a water receiving tray is provided at the down-water channel, the down-water channel is used to connect the water receiving tray and the water tank. The down-water channel includes a water passage, which is provided on the inner wall of the air duct cavity and is an integrated structure with the air duct cavity or is detachably connected to the air duct cavity. That is, a water passage is independently provided in the air duct cavity, so that the water added from the water inlet can be discharged from the air duct cavity and is not easy to enter the air duct.

[0040] In any of the above embodiments, optionally, the water tank is located on a side of the humidifier away from the air duct cavity, and the downflow channel further includes: a downflow pipe, located on one side of the humidifier and used to connect the water tank and the water flow channel.

[0041] In the technical solution, a downpipe is arranged in the water inlet cavity, the downpipe part is located in the humidifying cavity, and the downpipe part extends into the water tank. In this way, the water added by the water inlet can be transported to the water tank through the downpipe channel.

[0042] In any of the above embodiments, optionally, the air duct cavity includes two oppositely disposed ends, one of which is an air inlet end and the other is an air outlet end. An air duct is formed between the air inlet end and the air outlet end so that the air inlet end and the air outlet end are connected to each other. Parts such as the motor assembly, the water receiving tray and the wind wheel are disposed in the air duct cavity and enclose the air duct with the inner wall of the air duct cavity.

[0043] Furthermore, the air duct is an annular air duct arranged along the inner wall of the air duct cavity, so that the humidifier can discharge air from all directions.

[0044] Furthermore, the air outlet is arranged in a ring shape along the circumference of the top cover, and the water inlet is located inside the air outlet, so that the air outlet area of ​​the air outlet can be expanded, making the air outlet speed faster. At the same time, the air outlet range can also be expanded, so that the gas discharged by the humidifier can be more evenly dispersed to different areas.

[0045] In any of the above embodiments, the humidifier may further include a housing, wherein the air duct cavity and the humidification cavity are disposed in the housing and along the up and down direction of the housing. The top cover is disposed at one end of the housing and connected to the water receiving tray.

[0046] The air duct cavity may be composed of an integral shell, or the air duct cavity may also include multiple sections of cavities, which are assembled with each other in the up-down direction to form an air duct cavity.

[0047] In the present application, the above-mentioned waterproof structures can be used in combination, and through the combination of the above-mentioned several waterproof structures, the motor of the humidifier can be waterproof both from top to bottom, effectively improving the service life of the motor, reducing motor failures, and greatly reducing after-sales costs.

[0048] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0050] Figure 1 A schematic structural diagram of a humidifier according to an embodiment of the present application is shown;

[0051] Figure 2 One of the partial structural schematic diagrams of a humidifier according to an embodiment of the present application is shown;

[0052] Figure 3 A second partial structural schematic diagram of a humidifier according to an embodiment of the present application is shown;

[0053] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0054] Figure 5 A third partial structural schematic diagram of a humidifier according to an embodiment of the present application is shown;

[0055] Figure 6 A schematic structural diagram of an air duct cavity of a humidifier according to an embodiment of the present application is shown;

[0056] Figure 7 A schematic diagram of the assembly structure of a motor, a waterproof cover, a sealing gasket and a wind wheel of a humidifier according to an embodiment of the present application is shown;

[0057] Figure 8 A schematic structural diagram of a sealing gasket of a humidifier according to an embodiment of the present application is shown;

[0058] Fig. 9 A schematic structural diagram of a humidifier impeller according to an embodiment of the present application is shown.

[0059] Reference numerals:

[0060] 1 air duct cavity, 10 air duct, 12 air duct bottom plate, 122 first drainage hole, 124 second convex rib, 126 air inlet hole, 128 drainage gap, 2 top cover, 22 water inlet, 24 air outlet, 26 second protrusion, 32 mounting bracket, 322 first retaining rib, 324 first groove, 326 fourth retaining rib, 34 motor, 342 drive shaft, 36 waterproof cover, 362 through hole, 364 first protrusion, 38 sealing gasket, 382 mounting hole, 384 first convex rib, 39 accommodating cavity, 4 wind wheel, 42 second retaining rib, 44 second drainage hole, 46 shaft sleeve, 48 mounting plate, 49 blade, 5 water receiving tray, 52 second groove, 54 third retaining rib, 56 water outlet hole, 6 humidification cavity, 62 air inlet, 7 humidification component, 8 water tank, 9 drainage channel, 92 water passage, 94 drainage pipe. DETAILED DESCRIPTION

[0061] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0062] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0063] Refer to the following Figures 1 to 9 To describe a humidifier provided according to some embodiments of the present application.

[0064] An embodiment of the present application provides a humidifier, including an air duct cavity 1, a top cover 2, a mounting bracket 32, a motor 34 and a wind wheel 4.

[0065] The top cover 2 is arranged at the air outlet end of the air duct cavity 1, and is provided with a water inlet 22 and an air outlet 24 connected to the air duct cavity 1. The mounting bracket 32 ​​is located in the air duct cavity 1, and is provided with a first retaining rib 322 protruding in a direction away from the top cover 2. The motor 34 is mounted on the mounting bracket 32, and a drive shaft 342 is provided at one end of the motor 34 away from the top cover 2. The wind wheel 4 is connected to the drive shaft 342 and can rotate under the drive of the drive shaft 342. Figure 2 As shown, the wind wheel 4 includes a second blocking rib 42 , and the second blocking rib 42 is located on the inner side of the first blocking rib 322 along the radial direction of the wind wheel 4 .

[0066] According to the humidifier provided in the present application, it includes an air duct cavity 1, a top cover 2, a mounting bracket 32, a motor 34 and a wind wheel 4. Among them, an air duct 10 is arranged in the air duct cavity 1, and the air duct 10 is used to discharge the humidified air to the outside. An air outlet 24 is arranged on the top cover 2, and a grille structure is arranged in the air outlet 24, or the entire top cover 2 is an air outlet grille. A part of the air outlet grille is used for air outlet, and another part of the area is used as a water inlet 22 to add water to the humidifier. An exhaust device is arranged in the air duct cavity 1, and the exhaust device specifically includes a motor assembly and a wind wheel 4. The motor assembly is used to drive the wind wheel 4 to rotate, and a circulating airflow can be generated by the rotation of the wind wheel 4, so that the external gas can be first sucked into the humidifier, and the gas is gradually discharged into the air through the air outlet 24 after humidification, so that the air can be humidified. The motor assembly specifically includes a motor 34 and a mounting bracket 32 ​​for supporting and mounting the motor 34. At the same time, a first retaining rib 322 is provided on the mounting bracket 32, and a second retaining rib 42 is provided on the wind wheel 4, and the first retaining rib 322 and the second retaining rib 42 partially overlap along the axial direction of the motor 34, and the first retaining rib 322 is on the outside, and the second retaining rib 42 is on the inside. In this arrangement, the first retaining rib 322 of the mounting bracket 32 ​​can wrap the second retaining rib 42 of the wind wheel 4, so that when water is added to the air duct 10, the water will flow down along the retaining rib and will not enter the top of the wind wheel 4, thereby reducing the probability of water in the air duct 10 contacting the motor 34, reducing the occurrence of rust on the bearing of the motor 34 and corrosion of the circuit board of the motor 34 caused by the contact between the motor 34 and the water, and reducing the probability of abnormal noise from the motor 34 or the motor 34 not rotating, thereby improving the user experience of the user and reducing the after-sales cost.

[0067] At the same time, by setting the first retaining rib 322 and the second retaining rib 42, a double-layer waterproof structure can be formed. This can prevent the wind wheel 4 from bringing up water when the wind wheel 4 rotates, and prevent the water from entering the top of the wind wheel 4 from the gap between the first retaining rib 322 and the wind wheel 4, thereby achieving a better waterproof effect.

[0068] In any of the above embodiments, optionally, Figure 2 As shown, the first retaining rib 322 is arranged in a ring shape along the circumference of the motor 34, and / or as shown in FIG. Fig. 9 As shown, the second retaining ribs 42 are arranged in a ring shape along the circumference of the wind wheel 4 .

[0069] In this embodiment, in order to better wrap the wind wheel 4 with the mounting bracket 32, the first retaining rib 322 and the second retaining rib 42 are preferably configured as an annular structure. Of course, in other embodiments, the first retaining rib 322 and the second retaining rib 42 may also be configured as a non-annular structure.

[0070] In any of the above embodiments, optionally, Figure 3 , Figure 4and Figure 7 As shown, the humidifier also includes: a waterproof cover 36, which is located in the air duct cavity 1, installed at the end of the motor 34 away from the top cover 2, and forms a accommodating cavity 39 with the mounting bracket 32. The motor 34 is installed in the accommodating cavity 39. The waterproof cover 36 is provided with a through hole 362 connected to the accommodating cavity 39, and the driving shaft 342 can extend from the through hole 362; a sealing gasket 38 is installed between the waterproof cover 36 and the motor 34, and is used to seal the gap between the accommodating cavity 39 and the through hole 362 and / or the gap between the waterproof cover 36 and the motor 34.

[0071] In this embodiment, a waterproof cover 36 is provided on the driving side of the motor 34, and the waterproof cover 36 can protect the driving side of the motor 34 to prevent external water from entering the motor 34 from the driving side. At the same time, a through hole 362 is provided on the waterproof cover 36 to avoid the drive shaft 342, so that the drive shaft 342 can pass through the waterproof cover 36 through the through hole 362 and connect with the wind wheel 4, thereby driving the wind wheel 4 to rotate. Further, a sealing gasket 38 is also provided between the waterproof cover 36 and the motor 34. Through the sealing gasket 38, on the one hand, the gap between the through hole 362 and the drive shaft 342 can be sealed to prevent water in the air duct 10 from entering the motor 34 along the drive shaft 342. On the other hand, the gap between the waterproof cover 36 and the motor 34 can also be sealed to prevent water entering the inner side of the waterproof cover 36 from entering the motor 34. In this scheme, the waterproof effect of the motor 34 can be further enhanced by providing the waterproof cover 36 and the sealing gasket 38.

[0072] In any of the above embodiments, optionally, Figure 3 and Figure 4 As shown, the mounting bracket 32 ​​is provided with one of the first protrusion 364 and the first groove 324, and the waterproof cover 36 is provided with the other of the first protrusion 364 and the first groove 324. The first protrusion 364 is limitedly installed in the first groove 324 to connect the mounting bracket 32 ​​and the waterproof cover 36.

[0073] In this embodiment, the mounting bracket 32 ​​and the waterproof cover 36 are connected to each other, and a relatively closed accommodating chamber 39 is formed between the two. The motor 34 is arranged in the accommodating chamber 39, which can be isolated from the air duct 10, thereby enhancing the waterproof effect of the motor 34. At the same time, the mounting bracket 32 ​​and the waterproof cover 36 are connected by the cooperation of the first protrusion 364 and the first groove 324. This connection structure has a certain waterproof ability and can prevent water from entering the motor 34 from the connection to a certain extent.

[0074] At the same time, in order to ensure the connection reliability and waterproof reliability of the connection structure between the mounting bracket 32 ​​and the waterproof cover 36, the first protrusion 364 and the first groove 324 can be arranged in a ring shape around the circumference of the waterproof cover 36. For example, a circle of first protrusions 364 or first grooves 324 can be arranged around the entire circumference of the mounting bracket 32, and at the same time, a circle of first grooves 324 or first protrusions 364 can be arranged around the entire circumference of the waterproof cover 36.

[0075] Exemplarily, the mounting bracket 32 ​​and the waterproof cover 36 are connected by a double stop. Further, the double stop between the mounting bracket 32 ​​and the waterproof cover 36 is arranged in an annular shape around the circumference of the waterproof cover 36.

[0076] In any of the above embodiments, optionally, Figure 8 As shown, the sealing gasket 38 is provided with a plurality of mounting holes 382. During installation, the sealing gasket 38 can be positioned and installed through the mounting holes 382, ​​for example, the sealing gasket 38 can be installed and positioned on the motor 34 or the waterproof cover 36 through screws or bolts.

[0077] In any of the above embodiments, optionally, Figure 8 As shown, at least one first rib 384 is provided on the surface of the sealing gasket 38 close to the waterproof cover 36 . The first rib 384 is arranged in a ring shape around the hole 362 . The first rib 384 is compressed and arranged between the waterproof cover 36 and the motor 34 .

[0078] In this embodiment, the elasticity of the sealing gasket 38 can be enhanced by providing the first convex rib 384, so that the sealing effect of the sealing gasket 38 can be enhanced by the elastic deformation of the first convex rib 384. During installation, the sealing gasket 38 can be compressed and installed between the motor 34 and the waterproof cover 36 to ensure that the sealing gasket 38 is always in a compressed state. The first convex rib 384 is arranged in a ring shape, which can achieve sealing in all directions, thereby ensuring the sealing effect of the sealing gasket 38.

[0079] In any of the above embodiments, optionally, the compression amount of the first convex rib 384 is greater than or equal to 0.5 mm. The compression amount of the first convex rib 384 cannot be too small, otherwise the elastic deformation of the first convex rib 384 will be insufficient, resulting in poor sealing effect of the sealing gasket 38. The compression amount of the first convex rib 384 cannot be too large, otherwise the sealing gasket 38 will be easily damaged. Therefore, in actual process, the compression amount of the first convex rib 384 can be set in the range of 0.5 mm-3 mm.

[0080] In any of the above embodiments, optionally, Figure 8 As shown, there are multiple first ribs 384, and the multiple first ribs 384 are arranged at intervals along the radial direction of the through hole 362. The multiple first ribs 384 can achieve multi-layer waterproofing, thereby ensuring the waterproof effect of the sealing pad 38.

[0081] In any of the above embodiments, optionally, Figure 3 and Figure 4 As shown, the humidifier further includes: a water receiving tray 5, which is arranged in the air duct cavity 1 and is used to receive water from the water inlet 22, and the water receiving tray 5 is provided with one of the second protrusion 26 and the second groove 52. The top cover 2 is provided with the other of the second protrusion 26 and the second groove 52, and the second protrusion 26 is limitedly installed in the second groove 52.

[0082] In this embodiment, the water receiving tray 5 is arranged in the air duct cavity 1, and a gap is arranged between the inner wall of the air duct cavity 1 and the water receiving tray 5 to ensure that the wind can flow from one side of the water receiving tray 5 to the other side, so as to prevent the water receiving tray 5 from blocking the air duct 10. The water added through the water inlet 22 can be received by the water receiving tray 5. The water received by the water receiving tray 5 can be used to humidify the air flow flowing in the humidifier to generate humid gas. At the same time, the water receiving tray 5 and the top cover 2 are interconnected, so that a circle of waterproof structure can be formed around the water receiving tray 5 to prevent water from leaking from the water receiving tray 5 to the air duct 10 when adding water.

[0083] Exemplarily, the water tray 5 and the top cover 2 are connected via a double stop.

[0084] In any of the above embodiments, optionally, Figure 3 and Figure 4 As shown, the humidifier also includes: a water receiving tray 5, which is arranged in the air duct cavity 1, for receiving water from the water inlet 22, and a third retaining rib 54 is arranged on the water receiving tray 5; a fourth retaining rib 326 is arranged on the mounting bracket 32, and the third retaining rib 54 is arranged on the outer side of the fourth retaining rib 326 along the radial direction of the wind wheel 4.

[0085] In this embodiment, the water receiving tray 5 and the mounting bracket 32 ​​are connected by the third retaining rib 54 and the fourth retaining rib 326. The third retaining rib 54 and the fourth retaining rib 326 form a single stop. This structure enables the water receiving tray 5 to wrap around the mounting bracket 32, ensuring that even if there is water on the outer wall of the water receiving tray 5, it will not enter between the motor 34 and the mounting bracket 32 ​​from the connection between the water receiving tray 5 and the mounting bracket 32, and then contact the motor 34. This setting can further ensure the waterproof effect of the motor 34 through the connection between the water receiving tray 5 and the mounting bracket 32.

[0086] In any of the above embodiments, optionally, Figure 5 As shown, a water outlet hole 56 is provided on the water receiving tray 5. The water outlet hole 56 is used to discharge the water in the water receiving tray 5. Generally speaking, the water in the water receiving tray 5 can enter the water channel 9 through the water outlet hole 56, and then enter the water tank 8.

[0087] In any of the above embodiments, optionally, Figure 6As shown, an air duct bottom plate 12 is provided at the air inlet end of the air duct cavity 1 , and at least one first drainage hole 122 is provided on the air duct bottom plate 12 .

[0088] In this embodiment, a duct bottom plate 12 is provided at the bottom of the duct cavity 1, and a first drain hole 122 is provided on the duct bottom plate 12. Water entering the duct 10 can flow to the duct bottom plate 12, and then be discharged through the first drain hole 122 of the duct bottom plate 12. The water discharged from the first drain hole 122 can be directly discharged to the outside as waste water, or it can be discharged into the water tank 8 as recycled water to humidify the airflow. This arrangement can timely discharge the water at the bottom of the duct cavity 1 to avoid water accumulation at the bottom of the duct cavity 1, which can prevent the impeller 4 from throwing water onto the motor 34 when the humidifier is working at a high speed.

[0089] In any of the above embodiments, optionally, Figure 6 As shown, a second rib 124 is provided on the air duct bottom plate 12, and the second rib 124 is arranged in a ring shape along the circumference of the air duct bottom plate 12. A plurality of air inlet holes 126 are provided on the air duct bottom plate 12, and the plurality of air inlet holes 126 are located on the inner side of the second rib 124. A drainage notch 128 is provided on the second rib 124 to connect the inner area and the outer area of ​​the second rib 124.

[0090] In this embodiment, the air duct bottom plate 12 is provided with a second convex rib 124, and the air inlet holes 126 are all provided in the inner area surrounded by the second convex rib 124. The second convex rib 124 is provided to help reduce the noise in the air duct cavity 1. At the same time, a notch is provided on the second convex rib 124, and the notch allows the inner area and the outer area of ​​the second convex rib 124 to be connected, so that the water in the inner area of ​​the second convex rib 124 can be discharged to the outer area through the notch, and then discharged from the first drainage hole 122.

[0091] For example, Figure 6 As shown, the first drainage hole 122 is located outside the second rib 124 .

[0092] In any of the above embodiments, optionally, Figure 2 and Fig. 9 As shown, the wind wheel 4 includes a mounting plate 48, a shaft sleeve 46 and a plurality of blades 49. The mounting plate 48 is provided with a through hole which penetrates the shaft sleeve 46. The driving shaft 342 can extend into the shaft sleeve 46 through the through hole and be drivingly connected to the shaft sleeve 46. The plurality of blades 49 are mounted on the surface of the mounting plate 48 away from the motor 34, and the second retaining rib 42 is arranged on the surface of the mounting plate 48 close to the motor 34.

[0093] In this embodiment, the mounting plate 48 is connected to the drive shaft 342 through the shaft sleeve 46. By providing the shaft sleeve 46, the connection area between the wind wheel 4 and the drive shaft 342 can be ensured to ensure the connection strength between the two. Of course, the shaft sleeve 46 may not be provided, and the drive shaft 342 is directly connected to the mounting plate 48. The function of the mounting plate 48 is to connect the multiple blades 49 into one. The second retaining rib 42 is provided on the back side of the mounting plate 48, that is, the side away from the blades 49.

[0094] Further, a second drainage hole 44 is provided on one end of the mounting plate 48 close to the shaft sleeve 46. The water falling on the top of the wind wheel 4 can be drained away as quickly as possible through the second drainage hole 44 to avoid water accumulation on the top of the wind wheel 4.

[0095] Exemplarily, the second drainage hole 44 is elliptical, so that the area of ​​the second drainage hole 44 can be increased as much as possible, so that the wind wheel 4 can drain water in time.

[0096] In any of the above embodiments, optionally, Figure 1 As shown, the humidifier further includes: a humidifying cavity 6, which is arranged at the air inlet end of the air duct cavity 1, and the humidifying cavity 6 is provided with an air inlet hole 62 connected to the air duct cavity 1; a humidifying element 7, which is arranged in the humidifying cavity 6 and corresponds to the air inlet hole 62, and is used to humidify the airflow entering the humidifying cavity 6 from the air inlet hole 62, and the humidified air can flow into the air duct cavity 1 under the action of the wind wheel 4. Optionally, as Figure 1 As shown, the humidifier further comprises: a water tank 8 for supplying water to the humidifying element 7. Optionally, as Figure 5 As shown, the humidifier further includes: a water channel 9 for connecting the water tank 8 and the water inlet 22. The water channel 9 includes a water passage 92, which is arranged on the inner wall of the air duct cavity 1 and is an integral structure with the air duct cavity 1 or detachably connected with the air duct cavity 1.

[0097] In this embodiment, if Figure 1 As shown, the external gas can enter the humidification cavity 6 through the air inlet 62 under the action of the wind wheel 4, and the humidification component 7 is arranged in the humidification cavity 6 to humidify the airflow entering the air duct cavity 1. The humidified airflow enters the air duct cavity 1 from the connection between the humidification cavity 6 and the air duct cavity 1. The water tank 8 is used to store water to supply water to the humidification component 7. For example, water can be pumped into the humidification component 7 by a pump to achieve humidification of the humidification component 7.

[0098] Furthermore, if Figure 1As shown, an air flow channel is provided inside the humidifier 7. The gas entering through the air inlet hole 62 can pass through the humidifier 7 and enter the humidifier 7. Then, the gas flows to the air duct cavity 1 through the air flow channel provided inside the humidifier 7. In this way, the effect of the humidifier cavity 6 conveying the humidified airflow to the air duct cavity 1 can be achieved.

[0099] Among them, Figure 1 and Figure 5 As shown, the water channel 9 is used to connect the water inlet 22 and the water tank 8 so that water can be directly added to the water tank 8. In the case where a water receiving tray 5 is provided at the water inlet, the water channel 9 is used to connect the water outlet 56 of the water receiving tray 5 and the water tank 8. Among them, the water channel 9 includes a water passage 92, which is provided on the inner wall of the air duct cavity 1 and is an integrated structure with the air duct cavity 1 or is detachably connected to the air duct cavity 1. That is, the air duct cavity 1 is independently provided with a water passage 92, so that the water added from the water inlet 22 can be discharged from the air duct cavity 1, and is not easy to enter the air duct 10.

[0100] In any of the above embodiments, optionally, Figure 1 As shown, the water tank 8 is located on the side of the humidifying component 7 away from the air duct cavity 1, and the water channel 9 also includes: a water pipe 94, which is located on one side of the humidifying component 7 and is used to connect the water tank 8 and the water channel 92.

[0101] In this embodiment, a downpipe 94 is provided in the water inlet cavity, the downpipe 94 is partially located in the humidifying cavity 6, and the downpipe 94 partially extends into the water tank 8. In this way, the water added by the water inlet 22 can be transported to the water tank 8 through the downpipe channel 9.

[0102] In any of the above embodiments, optionally, Figure 1 As shown, the air duct cavity 1 includes two opposite ends, one of which is an air inlet end and the other is an air outlet end. An air duct 10 is formed between the air inlet end and the air outlet end so that the air inlet end and the air outlet end are connected to each other. Parts such as the motor assembly, the water receiving tray 5 and the wind wheel 4 are arranged in the air duct cavity 1 and form the air duct 10 together with the inner wall of the air duct cavity 1.

[0103] in, Figure 1 The arrows in the figure indicate the direction of air flow.

[0104] Furthermore, the air duct 10 is an annular air duct 10 arranged along the inner wall of the air duct cavity 1, so that the humidifier can discharge air from all directions.

[0105] Furthermore, the air outlet 24 is arranged in a ring shape along the circumference of the top cover 2, and the water inlet 22 is located inside the air outlet 24, so that the air outlet area of ​​the air outlet 24 can be expanded, making the air outlet speed faster. At the same time, the air outlet range can also be expanded, so that the gas discharged by the humidifier can be more evenly dispersed to different areas.

[0106] In any of the above embodiments, optionally, Figure 1 As shown, the humidifier further comprises a shell, and the air duct cavity 1 and the humidification cavity 6 are arranged in the shell and arranged along the up and down direction of the shell. The top cover 2 is arranged at one end of the shell and connected to the water receiving tray 5.

[0107] The air duct cavity 1 may be composed of an integral shell, or the air duct cavity 1 may also include multiple sections of cavities, which are assembled with each other in the up-down direction to form an air duct cavity 1 .

[0108] In the present application, the above-mentioned waterproof structures can be used in combination, and through the combination of the above-mentioned several waterproof structures, the motor 34 of the humidifier can be waterproof both from top to bottom, effectively improving the service life of the motor 34, reducing the failure of the motor 34, and greatly reducing the after-sales cost.

[0109] The humidifier of the present application is further described in detail below in conjunction with a specific embodiment.

[0110] This embodiment aims to solve the problem of rusting of the motor bearings and corrosion of the motor 34 circuit board due to contact with water during operation, and proposes a humidifier with a motor waterproof structure.

[0111] In existing evaporative humidifiers, water is usually added into the air duct 10. If the motor 34 is not waterproof or the waterproof structure is unreliable, it is easy to come into contact with water, causing the motor bearings to rust and the motor 34 circuit board to be corroded, etc., resulting in abnormal noise from the motor 34 or the motor 34 not rotating. This will affect the user experience and increase after-sales costs.

[0112] like Figures 1 to 8 As shown, in order to prevent the user from accidentally adding water from the air duct 10 and causing water to enter the motor 34, the humidifier of this embodiment has a waterproof cover 36 added between the motor 34 and the wind wheel 4 to isolate most of the water, and a sealing gasket 38 is added between the motor 34 and the waterproof cover 36 to completely isolate the motor bearing from the water; the air duct 10 is provided with a water flow outlet and a drainage hole, so that water can flow into the water tank 8 in time to prevent water from accumulating in the air duct 10 and to prevent the wind wheel 4 from throwing water onto the motor 34 when running at high speed; a drainage hole is added on the wind wheel 4, so that water can be discharged in time when it enters the top of the wind wheel 4, to prevent water from accumulating on the wind wheel 4 and soaking the motor 34, causing corrosion and damage to the motor 34. The humidifier is also provided with a separate water adding channel, and water can flow directly from the top to the water tank 8 when adding water, and the water will not enter the air duct 10 during the normal water adding operation; through the above structure, the motor 34 will not be exposed to water during normal operation and improper operation, thereby increasing the service life of the motor 34 and avoiding rust, abnormal noise, etc. caused by contact with water on the motor 34, thereby improving the user experience and reducing the after-sales cost.

[0113] The humidifier of this embodiment includes: an air outlet grille, a water receiving tray 5, a mounting bracket 32, a motor 34, an iron bracket, a sealing gasket 38, a waterproof cover 36, an air duct 10, a wind wheel 4, a connecting bracket, a downpipe 94, and a water tank 8.

[0114] First, the humidifier is an upper water-adding evaporative humidifier, and a water-adding trough is specially arranged on the air outlet grille. The water-adding trough is directly connected to the water receiving tray 5, and the water outlet of the water receiving tray 5 is connected to the water passage 92 of the air duct 10. The water passage 92 of the air duct 10 is connected to the downpipe 94 through a connecting bracket. Water flows from top to bottom to the water tank 8, forming an independent water-adding channel.

[0115] like Figure 4 As shown, the air outlet grille and the water receiving tray 5 are connected by double stoppers to prevent water from leaking from the water receiving tray 5 to the air duct 10 when adding water.

[0116] like Figure 4 As shown, the water receiving tray 5 and the mounting bracket 32 ​​are connected by a single stop, and the water receiving tray 5 wraps around the mounting bracket 32 ​​to ensure that even if there is water outside the water receiving tray 5, it will not enter from the connection and contact the motor 34.

[0117] like Figure 2 As shown, the mounting bracket 32 ​​and the wind wheel 4 are respectively provided with a circle of water retaining ribs, and the water retaining ribs of the mounting bracket 32 ​​need to cover the water retaining ribs of the wind wheel 4 to ensure that when water is added to the air duct 10, the water will flow down along the water retaining ribs and will not enter the top of the wind wheel 4.

[0118] like Figure 3 As shown, a waterproof cover 36 is provided under the mounting bracket 32, and the two are also connected by a double stopper to prevent water from flowing into the motor 34 from the connection.

[0119] like Figure 3 As shown, a sealing gasket 38 is provided on the motor shaft of the motor 34, and the sealing gasket 38 is positioned by three screw holes. At least two circles of compression ribs are provided under the sealing gasket 38, and the compression amount is at least 0.5 mm. The waterproof cover 36 can be locked in place and the sealing gasket 38 can be fixed by pressing the compression ribs, which can prevent water from entering the motor 34 from between the sealing gasket 38 and the waterproof cover 36.

[0120] like Fig. 9 As shown, an elliptical drainage hole is provided near the shaft of the wind wheel 4, and the area of ​​the drainage hole is increased as much as possible to achieve timely drainage and prevent water accumulation from soaking the motor 34.

[0121] like Figure 6 As shown, a plurality of drainage holes and drainage outlets are provided at the bottom of the air duct 10, and water can be directly discharged into the water tank 8 to prevent the water from being thrown onto the motor 34 when the machine's working impeller 4 runs at high speed.

[0122] Through the combination of the above-mentioned several waterproof structures, the motor 34 of the humidifier can be waterproof from top to bottom, which effectively increases the service life of the motor 34, reduces the failure of the motor 34, and greatly reduces the after-sales cost.

[0123] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0124] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A humidifier, characterized in that: include: Air duct cavity; A top cover is arranged at the air outlet end of the air duct cavity, and the top cover is provided with a water inlet and an air outlet hole communicating with the air duct cavity; A mounting bracket is located in the air duct cavity, and the mounting bracket is provided with a first retaining rib protruding in a direction away from the top cover; A motor is mounted on the mounting bracket, and a driving shaft is provided at one end of the motor away from the top cover; The wind wheel is connected to the driving shaft and can rotate under the driving of the driving shaft. The wind wheel includes a second retaining rib, and the second retaining rib is located on the inner side of the first retaining rib along the radial direction of the wind wheel.

2. The humidifier according to claim 1, characterized in that The first retaining ribs are arranged in a ring shape along the circumference of the motor, and / or the second retaining ribs are arranged in a ring shape along the circumference of the wind wheel.

3. The humidifier according to claim 1, characterized in that Also includes: A waterproof cover is located in the air duct cavity, mounted on an end of the motor away from the top cover, and forms a receiving cavity with the mounting bracket. The motor is mounted in the receiving cavity. The waterproof cover is provided with a through hole communicating with the receiving cavity, and the drive shaft can extend from the through hole. A sealing gasket is installed between the waterproof cover and the motor, and is used to seal the gap between the accommodating cavity and the through hole and / or the gap between the waterproof cover and the motor.

4. The humidifier according to claim 3, characterized in that: The mounting bracket is provided with one of a first protrusion and a first groove, and the waterproof cover is provided with the other of the first protrusion and the first groove. The first protrusion is limitedly installed in the first groove to connect the mounting bracket and the waterproof cover.

5. The humidifier according to claim 3, characterized in that: The sealing gasket is provided with a plurality of mounting holes; and / or At least one first rib is arranged on the surface of the sealing gasket close to the waterproof cover. The first rib is arranged in a ring shape around the through hole. The first rib is compressed and arranged between the waterproof cover and the motor.

6. The humidifier according to claim 5, characterized in that The compression amount of the first rib is greater than or equal to 0.5 mm; and / or There are multiple first ribs, and the multiple first ribs are arranged at intervals along the radial direction of the via hole.

7. The humidifier according to claim 1, characterized in that Also includes: A water receiving tray, disposed in the air duct cavity, for receiving water from the water inlet, wherein the water receiving tray is provided with one of a second protrusion and a second groove; The top cover is provided with the other of the second protrusion and the second groove, and the second protrusion is limitedly installed in the second groove.

8. The humidifier according to claim 1, characterized in that A water receiving tray, disposed in the air duct cavity, for receiving water from the water inlet, and a third retaining rib is disposed on the water receiving tray; The mounting bracket is provided with a fourth retaining rib, and the third retaining rib is arranged around the outer side of the fourth retaining rib along the radial direction of the wind wheel.

9. The humidifier according to any one of claims 1 to 8, characterized in that: An air duct bottom plate is disposed at the air inlet end of the air duct cavity, and at least one first drainage hole is disposed on the air duct bottom plate.

10. The humidifier according to claim 9, characterized in that A second convex rib is arranged on the air duct bottom plate, and the second convex rib is arranged in a ring shape along the circumference of the air duct bottom plate. A plurality of air inlet holes are arranged on the air duct bottom plate, and the plurality of air inlet holes are located on the inner side of the second convex rib. A drainage notch is arranged on the second convex rib to connect the inner area and the outer area of ​​the second convex rib.

11. The humidifier according to any one of claims 1 to 8, characterized in that: The wind wheel comprises a mounting plate, a shaft sleeve and a plurality of blades, the mounting plate is provided with a through hole penetrating the shaft sleeve, the driving shaft can extend into the shaft sleeve through the through hole and be drivingly connected with the shaft sleeve, the plurality of blades are mounted on a surface of the mounting plate away from the motor, and the second retaining rib is arranged on a surface of the mounting plate close to the motor; A second drainage hole is arranged on one end of the mounting plate close to the shaft sleeve.

12. The humidifier according to any one of claims 1 to 8, characterized in that: Also includes: A humidifying cavity is arranged at the air inlet end of the air duct cavity, and the humidifying cavity is provided with an air inlet hole connected with the air duct cavity; A humidifying element is disposed in the humidifying cavity and is arranged corresponding to the air inlet hole, and is used to humidify the airflow entering the humidifying cavity from the air inlet hole, and the humidified air can flow into the air duct cavity under the action of the wind wheel; A water tank, used to supply water to the humidifying element; A water discharge channel, used for connecting the water tank and the water inlet; The water discharge channel includes a water passage, which is arranged on the inner wall of the air duct cavity and is an integral structure with the air duct cavity or is detachably connected to the air duct cavity.

13. The humidifier according to claim 12, characterized in that The water tank is located on a side of the humidifying element away from the air duct cavity, and the water discharge channel further includes: A downpipe is located at one side of the humidifying element and is used to connect the water tank and the water passage.

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