Humidifier

Abstract

The utility model belongs to air treatment equipment technical field, specifically provides a humidifier. The utility model aims at solving the problem that the water in the existing humidifier is easy to enter into the motor and damage the motor. For this purpose, the humidifier of the utility model includes a casing, a motor fixing shell, a drive motor, a fan and a sealing element. The casing defines an air inlet and an air outlet, and the air outlet is located on the top side of the casing. The motor fixing shell is fixedly connected with the casing or integrally made, and is located on the bottom side of the air outlet. The motor fixing shell defines a motor mounting cavity, and the side wall of the motor mounting cavity is provided with a through hole. The drive motor is fixedly installed in the motor mounting cavity, and the shaft of the drive motor penetrates through the through hole. The fan is fixedly connected with the shaft. The sealing element is installed on the motor fixing shell, and is used to fill the gap between the peripheral wall of the through hole and the shaft to prevent liquid from entering the motor mounting cavity through the through hole. The utility model overcomes the above technical problems.

Description

Technical Field

[0001] This utility model belongs to the technical field of air handling equipment, and specifically provides a humidifier. Background Technology

[0002] With the improvement of people's living standards and the increasing requirements for indoor air quality, humidifiers, as electrical devices for regulating indoor humidity, are widely used in various scenarios such as homes, offices, and industrial workshops.

[0003] Many existing humidifiers are equipped with fans to drive the humidified air inside the humidifier out of the humidifier, especially for evaporative humidifiers.

[0004] In conventional humidifiers, the air inlet is typically located on the circumference, the air outlet on the top, and the fan is usually positioned between the inlet and outlet. To facilitate water filling, some humidifiers place the water inlet on the top side. However, when adding water, users may spill it, allowing water to flow into the humidifier from the outlet, or even enter the motor (the motor that drives the fan) through its shaft, potentially damaging the motor. Utility Model Content

[0005] One objective of this invention is to solve the problem that water in existing humidifiers can easily enter the motor and damage it.

[0006] To achieve the above objectives, this utility model provides a humidifier, comprising:

[0007] The housing has an air inlet and an air outlet, with the air outlet located on the top side of the housing;

[0008] A motor mounting housing is fixedly connected to or integrally formed with the housing and is located on the bottom side of the air outlet. The motor mounting housing defines a motor mounting cavity, and the side wall of the motor mounting cavity is provided with a through hole.

[0009] A drive motor is fixedly installed inside the motor mounting cavity, and the shaft of the drive motor passes through the through hole;

[0010] The fan is fixedly connected to the rotating shaft;

[0011] A seal is installed on the motor mounting housing to fill the gap between the peripheral wall of the through hole and the rotating shaft, so as to prevent liquid from entering the motor mounting cavity through the through hole.

[0012] Optionally, the through hole is formed on the bottom wall of the motor mounting cavity.

[0013] Optionally, the seal includes a fixing portion located within the motor mounting cavity and a sealing portion fitted into the through hole, the sealing portion defining a sealing hole through which the rotating shaft passes.

[0014] Optionally, the bottom wall of the motor mounting cavity is provided with a plurality of upwardly extending post holes, and the fixing part is provided with a plurality of fixing holes adapted to the post holes, so that the fixing part is sleeved on the post holes through the fixing holes.

[0015] Optionally, the humidifier further includes a threaded member that passes through the post and is screwed into a threaded hole formed on the drive motor to secure the drive motor to the motor housing, thereby causing the drive motor and the motor housing to clamp the fixing part.

[0016] Optionally, the bottom wall of the motor mounting cavity is provided with wing holes on opposite sides of the through hole, and the wing holes communicate with the through hole; the sealing part also includes two opposite wings, which are embedded in the wing holes to prevent the sealing part from rotating.

[0017] Optionally, the sealing part is coated with sealant on the peripheral wall of the sealing hole, and the sealant abuts against the shaft of the drive motor.

[0018] Optionally, the sealing part is provided with a spiral rib on the peripheral wall of the sealing hole so that the sealing part slides in contact with the rotating shaft through the spiral rib; the spiral direction of the spiral rib from top to bottom is the same as the rotation direction of the rotating shaft.

[0019] Optionally, the top side of the motor mounting cavity is provided with an opening; the humidifier also includes an air outlet grille installed on the motor mounting housing to close the opening and cover the air outlet.

[0020] Optionally, the humidifier further includes a water tank, a water absorption and evaporation component, and a water pumping system. The water tank is disposed at the inner bottom of the housing, and the humidifier is configured such that liquid added from the air outlet can flow into the water tank. The water absorption and evaporation component is disposed between the air inlet and the air outlet in the airflow path. The water pumping system is used to transport water from the water tank to the water absorption and evaporation component.

[0021] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by providing a sealing element on the motor mounting housing to fill the gap between the peripheral wall of the through hole and the rotating shaft, liquid is effectively prevented from entering the motor mounting cavity through the through hole, thereby effectively preventing liquid from entering the interior of the drive motor and thus avoiding damage to the drive motor.

[0022] Furthermore, by having a fixing part located in the motor mounting cavity and a sealing part embedded in the through hole, the sealing of the motor by the seal is ensured, as well as the stability of the seal.

[0023] Furthermore, after the drive motor is fixed, the fixing part is clamped by clamping the drive motor and the motor fixing housing. This ensures that the seal is secure and also enables the seal to reduce vibration and noise for the drive motor, thus weakening the vibration and noise transmitted from the drive motor to the motor fixing housing.

[0024] Furthermore, the fit between the wing hole and the wing portion prevents the sealing portion from circumferentially twisting as the drive motor shaft rotates.

[0025] Furthermore, by setting spiral ribs on the peripheral wall of the sealing hole, and making the sealing part slide in contact with the rotating shaft through the spiral ribs, and making the spiral direction of the spiral ribs from top to bottom the same as the rotation direction of the rotating shaft, a water guide groove is formed between the sealing part and the rotating shaft. Even if a small amount of liquid enters between the sealing part and the rotating shaft, the rotating shaft can carry the water in the water guide groove out of the sealing part due to the viscosity of the water.

[0026] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:

[0028] Figure 1 This is a perspective view of the humidifier in some embodiments of this utility model;

[0029] Figure 2 yes Figure 1 medium humidifier along Figure 1 Cross-sectional view (stereoscopic view) along the AA direction;

[0030] Figure 3 yes Figure 1 medium humidifier along Figure 1 A sectional view (plan view) along the AA direction;

[0031] Figure 4 yes Figure 3 Enlarged view of section F in the middle;

[0032] Figure 5This is an exploded view (first isometric view) of the structure of the drive motor-related parts in some embodiments of this utility model;

[0033] Figure 6 This is an exploded view (second isometric view) of the structure of the drive motor-related parts in some embodiments of this utility model;

[0034] Figure 7 yes Figure 5 and Figure 6 A three-dimensional view of a medium-sized wind turbine (first axonometric view);

[0035] Figure 8 yes Figure 5 and Figure 6 A three-dimensional view of a medium-sized wind turbine (second axonometric view);

[0036] Figure 9 yes Figure 5 and Figure 6 Top view of a medium-sized fan;

[0037] Figure 10 This is a partial structural schematic diagram of the sealing element in some other embodiments of this utility model;

[0038] Figure 11 This is a partial structural schematic diagram of the sealing element in some embodiments of this utility model.

[0039] Explanation of reference numerals in the attached figures:

[0040] 001. Humidifier;

[0041] 100. Housing; 101. Air inlet; 102. Air outlet;

[0042] 200. Motor mounting housing; 210. Motor mounting cavity; 211. Opening; 212. Through hole; 213. Wing hole; 220. Hole post;

[0043] 300. Drive motor; 301. Threaded hole; 310. Rotating shaft;

[0044] 400, Fan; 410, Hub; 420, First End Plate; 4201, Drain Hole; 421, Circular Plate Section; 422, Conical Ring Section; 430, Blade; 440, Second End Plate;

[0045] 500, Seal; 510, Fixing part; 511, Fixing hole; 520, Sealing part; 521, Sealing hole; 522, Wing; 530, Sealant; 540, Spiral rib;

[0046] 600. Threaded components;

[0047] 700, air vent grille;

[0048] 810. Water tank; 820. Water absorption and evaporation components; 830. Water pumping system; 831. Water pump; 832. Water pipe. Detailed Implementation

[0049] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0050] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.

[0052] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.

[0053] like Figures 1 to 6 As shown, in some embodiments of this utility model, the humidifier 001 includes a housing 100, a motor mounting housing 200, a drive motor 300, a fan 400, a sealing element 500, a threaded component 600, an air outlet grille 700, a water tank 810, a water absorption and evaporation component 820, and a water pumping system 830.

[0054] Furthermore, those skilled in the art may omit at least one of the following components as needed: housing 100, motor mounting housing 200, drive motor 300, fan 400, seal 500, threaded component 600, air outlet grille 700, water tank 810, water absorption and evaporation component 820, and water pumping system 830. For example, the water absorption and evaporation component 820 and water pumping system 830 may be omitted, and an atomizer may be provided for the humidifier 001. As another example, the water pumping system 830 may be omitted, and the water tank 810 may be positioned above the water absorption and evaporation component 820, allowing the water in the water tank 810 to flow to the water absorption and evaporation component 820 under its own gravity.

[0055] The housing 100 includes an air inlet 101 and an air outlet 102. The air inlet 101 is located on the circumferential wall of the housing 100, and the air outlet 102 is located on the top side of the housing 100. Alternatively, those skilled in the art may, as needed, have the air outlet 102 located on the circumferential wall of the housing 100, and the air inlet 101 located on the top side of the housing 100.

[0056] The motor mounting housing 200 is fixedly connected to or integrally formed with the housing 100 and is located on the bottom side of the air outlet 102. The motor mounting housing 200 defines a motor mounting cavity 210, and the side wall of the motor mounting cavity 210 is provided with a through hole 212 (e.g., Figure 6 (As shown). The through hole 212 can be provided on the side wall of the motor mounting cavity 210, and the top side of the motor mounting cavity 210 is provided with an opening 211 (as shown). Figure 5 As shown), the drive motor 300 is embedded into the motor mounting cavity 210.

[0057] The drive motor 300 is fixedly installed inside the motor mounting cavity 210, and the rotating shaft 310 of the drive motor 300 passes through the through hole 212. The fan 400 is fixedly connected to the rotating shaft 310.

[0058] The seal 500 is installed on the motor mounting housing 200 to fill the gap between the peripheral wall of the through hole 212 and the rotating shaft 310, so as to prevent liquid (e.g., water) from entering the motor mounting cavity 210 through the through hole 212, thereby preventing liquid from entering the drive motor 300 and thus avoiding damage to the drive motor 300.

[0059] It should be noted that in this invention, the liquid can be water, or an aqueous solution containing fragrance, disinfectant, or other substances.

[0060] The threaded component 600 is used to fix the motor mounting housing 200, the drive motor 300, and the seal 500 together. Alternatively, those skilled in the art may omit the threaded component 600 as needed, and fix the motor mounting housing 200 and the drive motor 300 together using snap-fit, interference fit, or other methods, and clamp the seal 500 between the motor mounting housing 200 and the drive motor 300.

[0061] Among them, the air outlet grille 700 is set at the air outlet 102 and is used to decorate the humidifier 001.

[0062] The water tank 810 is located inside the casing 100 and is used to hold the liquid added by the user.

[0063] The water-absorbing and evaporating component 820 is positioned between the air inlet 101 and the air outlet 102 along the airflow path. When the drive motor 300 operates, the fan 400 drives air to flow sequentially through the air inlet 101, the water-absorbing and evaporating component 820, and the air outlet 102. During this process, the airflow carries away moisture from the water-absorbing and evaporating component 820, creating air with higher humidity and humidifying the environment. The water-absorbing and evaporating component 820 can be made of any feasible material, such as fabric, porous ceramics, or porous metal.

[0064] The water pumping system 830 is used to transport water from the water tank 810 to the water absorption and evaporation component 820 to ensure that the water absorption and evaporation component 820 can absorb enough water to humidify the airflow.

[0065] The following reference Figures 2 to 9 The humidifier 001 in some embodiments of this utility model will be further described below.

[0066] like Figure 2 and Figure 3 As shown, in some embodiments of this utility model, a through hole 212 is formed on the bottom wall of the motor mounting cavity 210, and an opening 211 is provided on the top side of the motor mounting cavity 210. An air outlet grille 700 is mounted on the motor mounting housing 200, simultaneously closing the opening 211 and covering the air outlet 102 to prevent water entering through the air outlet grille 700 from entering the motor mounting cavity 210 through the opening 211 and damaging the drive motor 300.

[0067] Continue reading Figure 2 and Figure 3 In some embodiments of this utility model, the water tank 810 is located directly below the air outlet grille 700 so that users can add water to the water tank 810 through the air outlet grille 700.

[0068] from Figures 2 to 3As can be seen, a water collection shroud (not marked in the figure) is provided below the air outlet grille 700 to collect water directly above the water tank 810.

[0069] from Figures 2 to 3 It can also be seen that the water tank 810 is located at the bottom of the inner part of the housing 100, and the humidifier 001 is configured to allow the liquid added from the air outlet 102 to flow into the water tank 810.

[0070] like Figure 2 and Figure 3 As shown, in some embodiments of this utility model, the water-absorbing evaporation member 820 is configured as a cylinder so that airflow passes through the water-absorbing evaporation member 820 radially. Furthermore, a gap (not marked in the figure) is formed between the water-absorbing evaporation member 820 and the peripheral wall of the housing 100 so that the airflow entering from the air inlet 101 can be evenly distributed in the gap and then evenly pass through the water-absorbing evaporation member 820.

[0071] Continue reading Figure 2 and Figure 3 In some embodiments of this utility model, the water pumping system 830 includes a water pump 831 and a water pipe 832, which extends from the water pump 831 to the top of the water absorption and evaporation component 820. When the water pump 831 is working, it delivers water from the water tank 810 to the top of the water absorption and evaporation component 820 through the water pipe 832.

[0072] Continue reading Figure 2 and Figure 3 In some embodiments of this utility model, the top of the water-absorbing evaporation component 820 is provided with an annular water-holding tank (not marked in the figure), and the bottom wall of the water-holding tank is provided with a plurality of spaced drainage holes. The water pipe 832 delivers water to the water-holding tank, and the water in the water-holding tank is evenly sprayed onto the water-absorbing evaporation component 820 through the drainage holes.

[0073] like Figure 6 As shown, in some embodiments of the present invention, the seal 500 includes a fixing part 510 located in the motor mounting cavity 210 and a sealing part 520 embedded in the through hole 212. The sealing part 520 defines a sealing hole 521 through which the rotating shaft 310 passes.

[0074] Those skilled in the art will understand that by having a fixing portion 510 located in the motor mounting cavity 210 and a sealing portion 520 embedded in the through hole 212, the sealing of the motor by the seal 500 is ensured, as well as the stability of the seal 500.

[0075] like Figures 4 to 6As shown, in some embodiments of this utility model, the bottom wall of the motor mounting cavity 210 is provided with a plurality of upwardly extending post holes 220. The fixing part 510 is provided with a plurality of fixing holes 511 that are adapted to the post holes 220, so that the fixing part 510 is sleeved on the post holes 220 through the fixing holes 511.

[0076] like Figures 4 to 6 As shown, in some embodiments of this utility model, the drive motor 300 is provided with a threaded hole 301. The threaded member 600 passes through the post 220 and is tightened with the threaded hole 301 to fix the drive motor 300 into the motor mounting housing 200, thereby clamping the fixing part 510 between the drive motor 300 and the motor mounting housing 200.

[0077] Those skilled in the art will understand that after the drive motor 300 is fixed, by clamping the fixed part 510 with the drive motor 300 and the motor mounting housing 200, the sealing part 500 is not only secure, but also provides a vibration damping and noise reduction effect for the drive motor 300, thereby reducing the vibration and noise transmitted from the drive motor 300 to the motor mounting housing 200.

[0078] like Figure 6 As shown, the bottom wall of the motor mounting cavity 210 is provided with wing holes 213 on opposite sides of the through hole 212, and the wing holes 213 communicate with the through hole 212. The sealing part 520 also includes two opposing wings 522, which are embedded in the wing holes 213 to prevent the sealing part 520 from rotating.

[0079] Those skilled in the art will understand that the cooperation between the wing hole 213 and the wing portion 522 prevents the sealing portion 520 from circumferentially torturing as the shaft 310 of the drive motor 300 rotates.

[0080] like Figures 7 to 9 As shown, in some embodiments of this utility model, the fan 400 includes a hub 410 fixedly connected to the rotating shaft 310, a first end plate 420 fixedly connected to the hub 410, and a plurality of blades 430 fixedly connected to the first end plate 420. The first end plate 420 is provided with at least one drain hole 4201 to drain the water accumulated on the first end plate 420.

[0081] Those skilled in the art will understand that by providing at least one drain hole 4201 on the first end plate 420 of the fan 400, water accumulated on the first end plate 420 is drained, water accumulation on the fan 400 is avoided, thereby ensuring the dynamic balance of the fan 400 when it rotates and preventing the fan 400 from experiencing eccentric vibration.

[0082] Meanwhile, the combination of the drain hole 4201 on the fan 400 and the seal 500 provides a double waterproofing effect for the drive motor 300.

[0083] Continue reading Figures 7 to 9 In some embodiments of this utility model, the first end plate 420 includes a circular plate portion 421 connected to the hub 410 and a conical ring portion 422 connected to the circular plate portion 421. A drainage hole 4201 is provided on the circular plate portion 421 so that the drainage hole 4201 is located at the lowest position of the first end plate 420.

[0084] from Figures 7 to 9 As can be seen, the drain hole 4201 is located on the circumferential edge of the circular plate portion 421 near the conical ring portion 422, and the outer diameter of the conical ring portion 422 gradually increases from bottom to top. By making the outer diameter of the conical ring portion 422 of the first end plate 420 gradually increase from bottom to top, even if the water on the first end plate 420 is not discharged from the drain hole 4201 in time, it can still rise to the top of the first end plate 420 and be thrown out by centrifugal force.

[0085] like Figures 7 to 9 As shown, in some embodiments of the present invention, the fan 400 further includes a second end plate 440 fixedly connected to a plurality of blades 430. The second end plate 440 is disposed at the end of the blade 430 away from the first end plate 420 to increase the structural strength of the fan 400.

[0086] Furthermore, the outer diameter of the second end plate 440 gradually increases from bottom to top to increase the size of the air outlet side of the fan 400 and to collect the water flowing down from the air outlet 102.

[0087] from Figures 7 to 9 As can be seen, the outer diameter of all blades 430 gradually increases from the first end plate 420 to the second end plate 440 in order to increase the size of the air outlet side of the fan 400.

[0088] Based on the foregoing description, those skilled in the art will understand that in the first embodiment of this utility model, by providing a sealing element 500 on the motor mounting housing 200 to fill the gap between the peripheral wall of the through hole 212 and the rotating shaft 310, liquid is effectively prevented from entering the motor mounting cavity 210 through the through hole 212, thereby effectively preventing liquid from entering the motor interior and thus avoiding damage to the motor. By providing at least one drain hole 4201 on the first end plate 420 of the fan 400 to drain the water accumulated on the first end plate 420, water accumulation on the fan 400 is prevented, thereby ensuring the dynamic balance of the fan 400 during rotation and preventing eccentric vibration of the fan 400. At the same time, it also reduces the amount of water flowing to the rotating shaft 310.

[0089] like Figure 10In some other embodiments, unlike some of the embodiments described above, those skilled in the art may, as needed, coat the sealing part 520 with sealant 530 on the peripheral wall of the sealing hole 521, and the sealant 530 abuts against the rotating shaft 310 of the drive motor 300, so as to eliminate the gap between the sealing part 520 and the rotating shaft 310 through the sealant 530.

[0090] like Figure 11 In some other embodiments, unlike some of the embodiments described above, the sealing part 520 is provided with a spiral rib 540 on the peripheral wall of the sealing hole 521, so that the sealing part 520 slides in contact with the rotating shaft 310 through the spiral rib 540. Furthermore, the spiral direction of the spiral rib 540 from top to bottom is the same as the rotation direction of the rotating shaft 310.

[0091] Those skilled in the art will understand that by providing spiral ribs 540 on the peripheral wall of the sealing hole 521, and by making the sealing part 520 slide in contact with the rotating shaft 310 through the spiral ribs 540, and by making the spiral direction of the spiral ribs 540 from top to bottom the same as the rotation direction of the rotating shaft 310, a water guide groove is formed between the sealing part 520 and the rotating shaft 310. Even if a small amount of liquid enters between the sealing part 520 and the rotating shaft 310, the rotating shaft 310 can carry the water out of the sealing part 520 due to the viscosity of the water.

[0092] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.

[0093] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.

Claims

1. A humidifier, characterized in that, include: The housing has an air inlet and an air outlet, with the air outlet located on the top side of the housing; A motor mounting housing is fixedly connected to or integrally formed with the housing and located on the bottom side of the air outlet. The motor mounting housing defines a motor mounting cavity, and the side wall of the motor mounting cavity is provided with a through hole. A drive motor is fixedly installed inside the motor mounting cavity, and the shaft of the drive motor passes through the through hole; The fan is fixedly connected to the rotating shaft; A seal is installed on the motor mounting housing to fill the gap between the peripheral wall of the through hole and the rotating shaft, so as to prevent liquid from entering the motor mounting cavity through the through hole.

2. The humidifier according to claim 1, characterized in that, The through hole is formed on the bottom wall of the motor mounting cavity.

3. The humidifier according to claim 2, characterized in that, The seal includes a fixing part located within the motor mounting cavity and a sealing part fitted into the through hole, the sealing part defining a sealing hole through which the rotating shaft passes.

4. The humidifier according to claim 3, characterized in that, The bottom wall of the motor mounting cavity is provided with multiple upward-extending perforated posts. The fixing part is provided with a plurality of fixing holes that are adapted to the post, so that the fixing part can be sleeved on the post through the fixing holes.

5. The humidifier according to claim 4, characterized in that, The humidifier also includes a threaded member that passes through the post and is screwed into a threaded hole formed on the drive motor to secure the drive motor to the motor housing, thereby causing the drive motor and the motor housing to clamp the fixing part.

6. The humidifier according to claim 3, characterized in that, The bottom wall of the motor mounting cavity is provided with wing holes on both sides of the through hole, and the wing holes are connected to the through hole. The sealing part also includes two opposing wings that are embedded in the wing holes to prevent the sealing part from rotating.

7. The humidifier according to any one of claims 3 to 6, characterized in that, The sealing part is coated with sealant on the peripheral wall of the sealing hole, and the sealant abuts against the shaft of the drive motor.

8. The humidifier according to any one of claims 3 to 6, characterized in that, The sealing part is provided with a spiral rib on the peripheral wall of the sealing hole so that the sealing part slides in contact with the rotating shaft through the spiral rib; The spiral direction of the spiral rib from top to bottom is the same as the rotation direction of the rotating shaft.

9. The humidifier according to any one of claims 1 to 6, characterized in that, The top side of the motor mounting cavity is provided with an opening; The humidifier also includes an air outlet grille mounted on the motor housing to close the opening and cover the air outlet.

10. The humidifier according to any one of claims 1 to 6, characterized in that, The humidifier also includes a water tank, a water absorption and evaporation component, and a water pump system. The water tank is located at the inner bottom of the housing, and the humidifier is configured such that liquid added from the air outlet can flow into the water tank. The water-absorbing and evaporating component is disposed between the air inlet and the air outlet along the air flow path; The pump system is used to transport water from the water tank to the water absorption and evaporation component.

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