Humidifier

Abstract

This application discloses a humidifier, relating to the field of household appliance technology. The humidifier includes a main unit, a cover, and an anti-tipping structure. The cover fits onto the main unit to create a steam generating chamber. The cover has a steam channel with an inlet connecting to the steam generating chamber and an outlet connecting to the external space. The anti-tipping structure is located within the steam channel and includes an elastic element and a sealing element. The elastic element is located on the side of the sealing element facing away from the outlet. When the humidifier is upright, the sealing element presses against the elastic element, and the inlet is located above the sealing element and remains connected to the outlet. When the humidifier is tilted, the elastic element pushes against the sealing element towards the outlet to block the connection between the inlet and outlet. This application's technical solution solves the problem of high-temperature water overflowing from existing humidifiers when accidentally tilted.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a humidifier. Background Technology

[0002] In related technologies, humidifiers humidify the air by heating water to generate steam and then venting the steam. During the heating process, the high-temperature steam generated inside the humidifier is discharged through the vent on the top cover. If the humidifier is accidentally tipped over during use, the hot water inside will overflow, posing a risk of burns. Utility Model Content

[0003] This application provides a humidifier that solves the problem of hot water overflowing from the inside of existing humidifiers when they are accidentally tipped over.

[0004] In a first aspect, embodiments of this application provide a humidifier, including:

[0005] Host;

[0006] A cover, fitted onto the main unit to form a steam generating chamber, the cover having a steam passage with an inlet connecting to the steam generating chamber and an outlet connecting to the external space; and

[0007] An anti-tipping structure is provided in the steam passage. The anti-tipping structure includes an elastic element and a sealing element. The elastic element is located on the side of the sealing element facing away from the steam outlet.

[0008] When the humidifier is in an upright position, the sealing element presses against the elastic element, and the steam inlet is located above the sealing element and maintains communication with the steam outlet; when the humidifier is in a tilted position, the elastic element pushes against the sealing element towards the steam outlet to block the communication between the steam inlet and the steam outlet.

[0009] In one embodiment, the anti-tipping structure further includes a sealing ring with a communication port, which divides the steam passage into an inlet portion communicating with the steam inlet and an outlet portion communicating with the steam outlet in the steam discharge direction.

[0010] When the humidifier is in an upright position, the sealing element is positioned below the sealing ring, and the steam inlet and the steam outlet are connected through the connecting port. When the humidifier is in a tilted position, the sealing element moves toward the sealing ring under the push of the elastic element and blocks the connecting port.

[0011] In one embodiment, the sealing ring includes an inner ring portion, a middle ring portion, and an outer ring portion arranged sequentially from the inside to the outside in the radial direction. The outer ring portion is connected to the cover body, the inner ring portion is provided with the communication port, and the middle ring portion is provided with a deformation groove on the side facing away from the sealing element.

[0012] In one embodiment, the thickness of the inner ring portion is less than the thickness of the outer ring portion in the axial direction of the sealing ring.

[0013] In one embodiment, the communication port is circular, the sealing element is spherical or hemispherical, and the inner diameter of the communication port is smaller than the outer diameter of the sealing element.

[0014] In one embodiment, the seal and the inner wall surface of the steam passage are in a clearance fit or a transition fit.

[0015] In one embodiment, the cover includes an upper cover and a lower cover connected to each other. The upper cover includes an upper cover body and an annular rib provided on the side of the upper cover body facing the lower cover. The lower cover is recessed in a direction away from the upper cover.

[0016] The sealing ring is sandwiched between the free end of the annular rib and the recess, the annular rib and the upper cover body define the exhaust portion, and the recess defines the intake portion.

[0017] In one embodiment, the lower cover has a sealing rib on the side facing the upper cover. The sealing rib is arranged around the recess and is located inside or outside the annular rib. The outer periphery of the sealing ring has a sealing skirt, which is arranged along the axial direction of the sealing ring and sandwiched between the annular rib and the sealing rib.

[0018] In one embodiment, the seal is made of stainless steel, and the sealing ring is made of rubber or silicone.

[0019] In one embodiment, the humidifier further includes a heating component. The main unit includes a base and an inner liner. The inner liner is disposed on the base. The cover and the inner liner form a steam generating chamber. The inner liner and the base form an installation cavity. The heating component is installed in the installation cavity and is used to heat the water in the steam generating chamber to generate steam.

[0020] The humidifier based on this application embodiment features an anti-tipping structure in the steam channel. When the humidifier is used upright normally, the sealing element presses down against the elastic element under its own weight, keeping the steam inlet and outlet of the steam channel connected. Steam can then smoothly exit from the steam generating chamber through the steam inlet, steam channel, and outlet, achieving normal humidification. However, if the humidifier is accidentally knocked over (e.g., the tilt angle of the cover exceeds a preset threshold), the sealing element loses its continuous pressure against the elastic element. The elastic force generated by the elastic element's deformation recovery pushes the sealing element towards the outlet until it completely covers or blocks the connection path between the steam inlet and outlet, thus blocking the steam channel. This prevents incompletely vaporized liquid (such as hot water) from leaking out of the outlet with the steam when the humidifier is tilted, thus preventing safety hazards such as short circuits and burns caused by liquid spillage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the humidifier of this application, in which the humidifier is in a vertical position;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the humidifier of this application, in which the humidifier is in a tilted state;

[0025] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0026] Explanation of icon numbers:

[0027] 10. Humidifier; 100. Main unit; 110. Base; 120. Inner liner; 130. Mounting cavity; 200. Cover; 210. Steam passage; 211. Steam inlet; 212. Steam outlet; 2121. Steam outlet; 220. Top cover; 221. Top cover body; 222. Annular rib; 230. Bottom cover; 231. Recess; 232. Sealing rib; 300. Anti-tipping structure; 310. Elastic element; 320. Sealing element; 330. Sealing ring; 331. Inner ring; 3311. Connecting port; 332. Middle ring; 3321. Deformation groove; 333. Outer ring; 334. Sealing skirt; 400. Steam generating chamber; 500. Heating component.

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figure 1 , Figure 2 and Figure 3This application proposes a humidifier 10, including a main unit 100, a cover 200 and an anti-tipping structure 300. The cover 200 covers the main unit 100 to form a steam generating chamber 400. The cover 200 is provided with a steam channel 210, which has a steam inlet communicating with the steam generating chamber 400 and a steam outlet 2121 communicating with the external space. An anti-tipping structure 300 is provided in the steam channel 210. The anti-tipping structure 300 includes an elastic element 310 and a sealing element 320. The elastic element 310 is located on the side of the sealing element 320 facing away from the steam outlet 2121. When the humidifier 10 is in an upright position, the sealing element 320 presses against the elastic element 310, and the steam inlet is located above the sealing element 320 and communicates with the steam outlet 2121. When the humidifier 10 is in a tilted position, the elastic element 310 pushes against the sealing element 320 in the direction closer to the steam outlet 2121 to block the communication between the steam inlet and the steam outlet 2121.

[0034] By setting an anti-tipping structure 300 in the steam channel 210, when the humidifier 10 is used upright normally, the sealing element 320 presses down against the elastic element 310 under its own weight, keeping the steam inlet and outlet 2121 of the steam channel 210 connected. Steam can smoothly exit from the steam generating chamber 400 through the steam inlet, steam channel 210, and outlet 2121, achieving normal humidification function. However, when the humidifier 10 is accidentally bumped or accidentally tipped over (such as when the tilt angle of the cover 200 exceeds a preset threshold), the sealing element 320 loses the continuous pressure of gravity on the elastic element 310. The elastic force generated by the recovery of the elastic element 310 due to deformation will push the sealing element 320 towards the outlet 2121 until the sealing element 320 completely covers or blocks the connection path between the steam inlet and outlet 2121, thereby blocking the steam channel 210. This prevents unvaporized liquid (such as high-temperature water) in the steam generating chamber 400 from leaking out of the exhaust port 2121 when the humidifier 10 is tilted, thus preventing safety hazards such as short circuits and burns to users caused by liquid spillage.

[0035] The anti-tipping structure 300 consists of an elastic element 310 and a sealing element 320. The automatic sealing function is achieved through the mechanical cooperation of the two. When the state of the humidifier 10 changes, the elastic element 310 can immediately push the sealing element 320 to move through deformation recovery. The response time is short and there is no need for complex components such as sensors and electronic control components, which reduces manufacturing costs and failure probability.

[0036] It is understandable that the steam inlet is located around the steam channel 210 so that when the humidifier 10 is in an upright position, the seal 320 can be positioned below the steam inlet while being placed in the steam channel 210, without obstructing the connection between the steam inlet and the exhaust port 2121. Specifically, when the humidifier 10 is in a tilted position, the seal 320 can move to the steam inlet under the pushing force of the elastic member 310, thereby blocking the connection between the steam inlet and the exhaust port 2121 by sealing the steam inlet with the seal 320. Similarly, the seal 320 can move to the exhaust port 2121 under the pushing force of the elastic member 310, thereby blocking the connection between the steam inlet and the exhaust port 2121 by sealing the exhaust port 2121 with the seal 320.

[0037] In another embodiment, the seal 320 can block the connection between the steam inlet and the exhaust outlet 2121 by engaging with the inner wall of the steam passage 210. For example, when the humidifier 10 is tilted, the elastic member 310 pushes the seal 320 towards the exhaust outlet 2121, positioning the seal 320 between the steam inlet and the exhaust outlet 2121 in the steam discharge direction. Through the interference fit between the seal 320 and the inner wall of the steam passage 210, the steam passage 210 is blocked, thereby interrupting the connection between the steam inlet and the exhaust outlet 2121.

[0038] Unlike the above, please refer to Figure 2 and Figure 4 In one embodiment, the anti-tipping structure 300 further includes a sealing ring 330 with a communication port 3311. In the steam discharge direction, the sealing ring 330 divides the steam passage 210 into a steam inlet portion 211 communicating with the steam inlet and a steam exhaust portion 212 communicating with the steam exhaust port 2121. When the humidifier 10 is in an upright position, the sealing member 320 is positioned below the sealing ring 330 at intervals, and the steam inlet portion 211 and the steam exhaust portion 212 are kept in communication through the communication port 3311. When the humidifier 10 is in a tilted position, the sealing member 320 moves toward the sealing ring 330 under the pushing of the elastic member 310 and blocks the communication port 3311.

[0039] The steam passage 210 is divided into an inlet section 211 and an outlet section 212 by the sealing ring 330, forming a clear steam flow path. When the humidifier 10 is placed upright, the seal 320 is located below the sealing ring 330 due to gravity, and steam can flow from the inlet section 211 to the outlet section 212 through the connecting port 3311, ensuring normal steam output from the outlet 2121. When the equipment is tilted, the elastic element 310 pushes the seal 320 towards the sealing ring 330 until the seal 320 tightly fits against the sealing ring 330 and completely blocks the connecting port 3311.

[0040] Specifically, the connecting port 3311 is circular, the sealing element 320 is spherical or hemispherical, and the inner diameter of the connecting port 3311 is smaller than the outer diameter of the sealing element 320.

[0041] The circular connecting port 3311 and the spherical / hemispherical seal 320 are geometrically perfectly matched. When the humidifier 10 is tilted, the elastic element 310 pushes the seal 320 towards the connecting port 3311. Since the inner diameter of the connecting port 3311 is smaller than the outer diameter of the seal 320, the spherical (or hemispherical) surface of the seal 320 will form an annular line contact with the edge of the circular connecting port 3311. This line contact method can generate higher contact pressure than a planar seal, effectively squeezing the edge of the sealing ring 330 and filling tiny gaps caused by processing errors or material deformation. At the same time, the symmetrical design of the spherical surface allows the seal 320 to be aligned with the center of the connecting port 3311 during movement, avoiding local leakage caused by misalignment.

[0042] Optionally, the sealing ring 330 is made of an elastic material, including but not limited to silicone and rubber. The contact surface between the edge of the connecting port 3311 of the sealing ring 330 and the sealing element 320 can form a soft sealing structure. Compared with the design of directly blocking the inner wall of the steam passage 210, it can more effectively eliminate gaps caused by processing errors, prevent steam or unvaporized liquid from seeping out from tiny gaps, improve the sealing performance between the sealing element 320 and the sealing ring 330, and thus improve the sealing reliability in the tilting state.

[0043] It is understandable that the steam passage 210 is used to allow high-temperature steam to pass through. Considering that when the seal 320 is placed in the steam passage 210, if the seal 320 is a common metal part such as iron or aluminum, it is easy to oxidize and rust in this high temperature and high humidity environment. If the seal 320 is a plastic part, it is easy to undergo thermal deformation. Both of these will affect the sealing effect between the seal 320 and the sealing ring 330.

[0044] Therefore, optionally, the seal 320 is made of stainless steel, which has excellent corrosion resistance and high temperature resistance. Stainless steel can withstand high temperature and high humidity environments for a long time, avoiding seal failure caused by rust or deformation of the seal 320 surface. At the same time, the weight of the stainless steel seal 320 can more easily meet the requirements to resist the compression deformation of the elastic element 310 when the humidifier 10 is in an upright position.

[0045] The elastic element 310 includes, but is not limited to, compression springs, rubber springs, or thermoplastic elastomers. Optionally, the elastic element 310 may be made of alloy spring steel or stainless steel to adapt to the high temperature and high humidity environment within the steam passage 210 and extend the service life of the anti-tipping structure 300.

[0046] Please see Figure 2Specifically, in one embodiment, the sealing ring 330 includes an inner ring portion 331, a middle ring portion 332 and an outer ring portion 333 arranged sequentially from the inside to the outside in the radial direction. The outer ring portion 333 is connected to the cover body 200. The inner ring portion 331 is provided with a communication port 3311. The middle ring portion 332 is provided with a deformation groove 3321 on the side facing away from the sealing member 320.

[0047] The sealing ring 330 achieves functional zoning through a radial layered design. The outer ring 333 is fixed to the cover 200 by snap-fit ​​or adhesive, ensuring the overall stability of the sealing ring 330 installation. The inner ring 331 directly opens a connecting port 3311, serving as the core channel for steam flow. The middle ring 332 serves as a transition area, with a deformation groove 3321 on its side facing away from the seal 320, providing elastic adjustment. When the equipment is tilted, the seal 320 is pushed against the inner ring 331 by the elastic element 310. Due to the presence of the deformation groove 3321, the middle ring 332 can provide space for the inner ring 331 to deform away from the seal 320 by compressing the space of the deformation groove 3321, making the contact between the inner ring 331 and the seal 320 tighter. Meanwhile, the deformation groove 3321 avoids stress concentration caused by excessive rigidity in the middle ring 332, prevents irreversible deformation of the sealing ring 330 due to long-term pressure, and ensures that the sealing effectiveness between the sealing element 320 and the sealing ring 330 can still be maintained after multiple upright and tilting cycles.

[0048] Furthermore, in the axial direction of the sealing ring 330, the thickness of the inner ring portion 331 is less than the thickness of the outer ring portion 333.

[0049] As the area directly in contact with the seal 320, the inner ring 331 has a thickness less than that of the outer ring 333. This allows the inner ring 331 to more easily undergo localized elastic deformation when the seal 320 presses against it. When the humidifier 10 is tilted, the thinner inner ring 331 can bend slightly axially away from the seal 320, allowing the side of the inner ring 331 facing the seal 320 to form a larger surface contact area with the spherical surface of the seal 320. This fills the tiny gaps caused by surface roughness or processing errors of the seal 320, effectively preventing steam leakage.

[0050] In one embodiment, the seal 320 and the inner wall surface of the steam passage 210 are in a clearance fit or a transition fit.

[0051] The clearance or transition fit design significantly reduces the contact area between the seal 320 and the inner wall of the steam channel 210. When the humidifier 10 is tilted, the clearance or transition fit effectively reduces the frictional resistance of the seal 320 as the elastic element 310 pushes the seal 320 within the steam channel 210 to block the connection port 3311. Reducing the response time of the seal 320 from its initial position to the position of blocking the connection port 3311 when the humidifier 10 is tilted allows for more timely prevention of steam or liquid overflow.

[0052] Please see Figure 1 and Figure 2 In one embodiment, the cover 200 includes an upper cover 220 and a lower cover 230 connected to each other. The upper cover 220 includes an upper cover body 221 and an annular rib 222 disposed on the side of the upper cover body 221 facing the lower cover 230. The lower cover 230 is recessed in the direction away from the upper cover 220 to form a recess 231. A sealing ring 330 is sandwiched between the free end of the annular rib 222 and the recess 231. The annular rib 222 and the upper cover body 221 define an exhaust portion 212, and the recess 231 defines an intake portion.

[0053] It is understood that the elastic element 310 and the sealing element 320 are located within the recess 231. One end of the elastic element 310 facing away from the sealing element 320 can be connected to the inner bottom wall of the recess 231, and the other end is connected to or abuts against the sealing element 320. The steam inlet is located on the peripheral side wall of the recess 231. When the cover 200 is placed on the main unit 100, the steam inlet connects the steam generating chamber 400 and the steam inlet section 211. The steam outlet 2121 is located on the upper cover body 221 and connects to the steam outlet section 212. When the humidifier 10 tilts, since the end of the elastic element 310 facing away from the seal 320 is fixed, and the pressure applied by the seal 320 to the elastic element 310 decreases or disappears, the elastic element 310 has a tendency to recover its deformation. The resulting elastic force will push the seal 320 to move closer to the sealing ring 330 to block the connection port 3311 and prevent steam and high-temperature water in the steam generating chamber 400 from leaking through the exhaust port 2121.

[0054] Furthermore, the lower cover 230 is provided with a sealing rib 232 on the side facing the upper cover 220. The sealing rib 232 is arranged around the recess 231 and is located inside or outside the annular rib 222. The outer periphery of the sealing ring 330 is provided with a sealing skirt 334. The sealing skirt 334 is arranged along the axial direction of the sealing ring 330 and is sandwiched between the annular rib 222 and the sealing rib 232.

[0055] The sealing skirt 334 extends axially along the sealing ring 330 and is tightly clamped by the annular rib 222 and the sealing rib 232. The elastic deformation of the sealing skirt 334 fills the gap between the annular rib 222 and the sealing rib 232, forming a second sealing barrier to prevent steam and water from leaking between the annular rib 222 and the sealing rib 232.

[0056] Please see Figure 1 In one embodiment, the humidifier 10 further includes a heating component 500. The main unit 100 includes a base 110 and an inner liner 120. The inner liner 120 is disposed on the base 110. The cover 200 and the inner liner 120 form a steam generating chamber 400. The inner liner 120 and the shell form an installation cavity 130. The heating component 500 is installed in the installation cavity 130 and is used to heat the water in the steam generating chamber 400 to generate steam.

[0057] The heating element 500 indirectly heats the water in the steam generating chamber 400 through the bottom wall of the inner tank 120. The inner tank 120 is typically made of a metal material with high thermal conductivity, including but not limited to 304 stainless steel and aluminum alloy. The heat generated by the heating element 500 can be quickly and evenly conducted to the water inside through the wall of the inner tank 120, reducing energy loss in the heat transfer path. Compared with the traditional design that directly immerses the heating element 500 in water, this design avoids direct contact between the heating element 500 and the water, effectively mitigating the problem of decreased heat transfer efficiency caused by water scale deposition, while also reducing the risk of corrosion caused by long-term immersion and extending its service life.

[0058] Specifically, the heating element 500 can be an electric heating tube or a quartz tube disposed at the bottom of the inner tank 120. For example, a spiral electric heating tube is used to fit against the outer wall of the inner tank 120 to increase the contact area between the heating element 500 and the outer wall of the inner tank 120, so as to further improve the heat conduction efficiency, so that the water reaches the boiling point faster and shorten the heating time.

[0059] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A humidifier, characterized in that, include: Host; A cover is fitted onto the main unit to form a steam generating chamber. The cover is provided with a steam channel, which has a steam inlet communicating with the steam generating chamber and a steam outlet communicating with the external space. as well as An anti-tipping structure is provided in the steam passage. The anti-tipping structure includes an elastic element and a sealing element. The elastic element is located on the side of the sealing element facing away from the steam outlet. When the humidifier is in an upright position, the sealing element presses against the elastic element, and the steam inlet is located above the sealing element and maintains communication with the steam outlet; when the humidifier is in a tilted position, the elastic element pushes against the sealing element towards the steam outlet to block the communication between the steam inlet and the steam outlet.

2. The humidifier of claim 1, wherein, The anti-tipping structure also includes a sealing ring with a communication port. In the steam discharge direction, the sealing ring divides the steam passage into a steam inlet portion communicating with the steam inlet and a steam outlet portion communicating with the steam outlet. When the humidifier is in an upright position, the sealing element is positioned below the sealing ring, and the steam inlet and the steam outlet are connected through the connecting port. When the humidifier is in a tilted position, the sealing element moves toward the sealing ring under the push of the elastic element and blocks the connecting port.

3. The humidifier of claim 2, wherein, The sealing ring includes an inner ring, a middle ring, and an outer ring arranged sequentially from the inside to the outside in the radial direction. The outer ring is connected to the cover body, the inner ring is provided with the communication port, and the middle ring is provided with a deformation groove on the side facing away from the sealing element.

4. The humidifier of claim 3, wherein, In the axial direction of the sealing ring, the thickness of the inner ring portion is less than the thickness of the outer ring portion.

5. The humidifier of claim 2, wherein, The connection port is circular, and the sealing element is spherical or hemispherical, with the inner diameter of the connection port being smaller than the outer diameter of the sealing element.

6. The humidifier as described in claim 2, characterized in that, The seal and the inner wall of the steam passage are in a clearance fit or a transition fit.

7. The humidifier of claim 2, wherein, The cover includes an upper cover and a lower cover that are connected to each other. The upper cover includes an upper cover body and an annular rib on the side of the upper cover body facing the lower cover. The lower cover is recessed in the direction away from the upper cover. The sealing ring is sandwiched between the free end of the annular rib and the recess, the annular rib and the upper cover body define the exhaust portion, and the recess defines the intake portion.

8. The humidifier of claim 7, wherein, The lower cover has a sealing rib on the side facing the upper cover. The sealing rib surrounds the recess and is located inside or outside the annular rib. The outer periphery of the sealing ring has a sealing skirt, which is arranged along the axial direction of the sealing ring and sandwiched between the annular rib and the sealing rib.

9. The humidifier of any one of claims 2 to 8, wherein, The sealing element is made of stainless steel, and the sealing ring is made of rubber or silicone.

10. The humidifier of claim 1, wherein, The humidifier also includes a heating component. The main unit includes a base and an inner liner. The inner liner is disposed on the base. The cover and the inner liner form a steam generating chamber. The inner liner and the base form an installation cavity. The heating component is installed in the installation cavity and is used to heat the water in the steam generating chamber to generate steam.

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