Humidifier

Abstract

The utility model discloses a humidifier. The humidifier comprises a water storage tank provided with a water storage cavity; the filter element assembly comprises a purified water tank and a first filter element, the purified water tank is arranged above the water storage tank, the first filter element is arranged in the purified water tank, the purified water tank is provided with a tank water inlet and a tank water outlet, and both the tank water inlet and the tank water outlet can be communicated with the water storage cavity; the first pump body is arranged in the water storage cavity or the purified water tank; the one-way control structure is arranged between the water storage cavity and the tank water inlet; when the first pump body is started, the one-way control structure can be opened, so that liquid sequentially passes through the tank water inlet, the first filter element and the tank water outlet from the water storage cavity; and when the first pump body stops, the one-way control structure can be reset and closed to limit the liquid from flowing to the water storage cavity from the tank water inlet. Therefore, by arranging the independent purification water tank, the filter element assembly is prevented from being directly soaked in the water storage tank, so that the filter element assembly is more convenient to clean; in addition, the one-way control structure can prevent the liquid which does not completely pass through the filter element assembly from flowing back to the stored water.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to humidifiers. Background Technology

[0002] As living standards improve, people have increasingly higher requirements for indoor air quality and comfort, demanding not only suitable indoor temperature but also suitable indoor humidity. Humidifiers can regulate indoor air humidity to meet users' needs for indoor air comfort.

[0003] In existing technology, humidifiers typically include a main unit housing, a water tank, a filter assembly, and a water pump. The water tank and the filter assembly are both located in the main unit housing and are interconnected. The water pump is located in the water tank to allow liquid to flow from the water tank to the filter assembly, thereby achieving liquid filtration. However, existing humidifiers have the following problems in practical applications: dirt and impurities adhere to the filter assembly, and the filter assembly may be directly immersed in the water tank, making it difficult to clean the filter assembly. Furthermore, when the water pump stops working, liquid that has not completely passed through the filter assembly can easily flow back into the water tank, which will deteriorate the water quality in the water tank. Utility Model Content

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a humidifier to solve the problems of difficult cleaning of the filter element assembly of existing humidifiers and the deterioration of water quality in the storage tank caused by liquid backflow.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A humidifier includes: a water storage tank with a water storage cavity; a filter assembly including a purified water tank and a first filter element, the purified water tank being disposed above the water storage tank, the first filter element being disposed inside the purified water tank, the purified water tank having a tank inlet and a tank outlet, both of which are capable of communicating with the water storage cavity; a first pump body disposed in the water storage cavity or the purified water tank; and a one-way control structure disposed between the water storage cavity and the tank inlet; when the first pump body is started, the one-way control structure can be opened to allow liquid to flow from the water storage cavity sequentially through the tank inlet, the first filter element, and the tank outlet; when the first pump body is stopped, the one-way control structure can be reset and closed to restrict the flow of liquid from the tank inlet to the water storage cavity.

[0007] According to some embodiments of the present invention, the purified water tank is detachably mounted above the water storage tank.

[0008] According to some embodiments of the present invention, the purified water tank includes a bottom wall, which separates the water storage cavity and the cavity of the purified water tank.

[0009] According to some embodiments of the present invention, the purified water tank includes a first cover and a first housing, the bottom wall of the tank is the bottom wall of the first housing, the first cover is detachably connected to the top of the first housing, and the first filter element is connected to the first cover.

[0010] According to some embodiments of the present invention, the pump inlet of the first pump body is connected to the outlet of the tank, the pump outlet of the first pump body is connected to the water storage chamber, and when the first pump body is started, it can generate negative pressure in the purified water tank and open the one-way control structure.

[0011] According to some embodiments of the present invention, the water outlet of the tank has a guide wall extending into the cavity of the purified water tank, and the pump inlet of the first pump body is inserted into the guide wall.

[0012] According to some embodiments of this utility model, the one-way control structure is a check valve, which includes a rubber plug, a push rod, and an elastic element. The rubber plug is located inside the purified water tank and connected to the push rod. The push rod is movably disposed at the tank inlet, and the elastic element is disposed between the push rod and the tank inlet. When the first pump body starts, the push rod is forced to move to a position that separates the rubber plug from the tank inlet, opening the tank inlet and compressing the elastic element. When the first pump body stops, the elastic element's elastic force drives the push rod to move to a position that closes the tank inlet with the rubber plug.

[0013] According to some embodiments of the present invention, the water storage tank includes a second cover and a second housing, the second cover being connected to the second housing, and the second cover having a recessed guide groove, the guide groove connecting the water outlet of the tank and the water storage cavity, the guide groove being used to guide the liquid discharged from the water outlet of the tank into the water storage cavity.

[0014] According to some embodiments of the present invention, the humidifier further includes a second filter element, which is disposed within the flow guide groove.

[0015] According to some embodiments of the present invention, the humidifier further includes a main housing, a second pump body, a water supply pipe, and a fan. The fan is disposed in the main housing, the second pump body is disposed in the water storage chamber, and the water supply pipe connects the cavity of the main housing and the water storage chamber. When the second pump body is started, it can be used to make liquid flow from the water storage chamber to the cavity of the main housing.

[0016] In summary, the humidifier provided by this utility model has at least the following technical effects:

[0017] On the one hand, by placing the purified water tank above the storage tank, the filter element assembly is prevented from being directly immersed in the storage tank, making it easier to clean. On the other hand, by setting up a one-way control structure, when the first pump stops working, liquid that has not completely passed through the filter element assembly can be prevented from flowing back into the storage tank, effectively ensuring the water quality of the liquid in the storage tank. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the humidifier according to Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the humidifier according to Embodiment 1 of the present invention in the first direction;

[0020] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 This is a schematic cross-sectional view of the filter element assembly (when the rubber stopper and the tank inlet are separated) according to Embodiment 1 of this utility model.

[0022] Figure 5 This is a schematic cross-sectional view of the filter element assembly (when the inlet of the box is sealed with a rubber stopper) according to Embodiment 1 of this utility model.

[0023] Figure 6 This is a schematic cross-sectional view of the humidifier in the second direction according to Embodiment 1 of the present invention;

[0024] Figure 7 This is a cross-sectional structural diagram of the main unit casing and water storage tank according to Embodiment 2 of this utility model;

[0025] Figure 8 This is a three-dimensional structural diagram of the water storage tank according to Embodiment 2 of this utility model;

[0026] Figure 9 This is an exploded structural diagram of the water storage tank in Embodiment 2 of this utility model.

[0027] The meanings of the reference numerals in the attached figures are as follows:

[0028] 1. Filter element assembly; 11. Purified water tank; 111. First housing; 112. First cover; 113. Tank inlet; 114. Tank outlet; 115. Tank bottom wall; 116. Drainage wall; 117. Guide wall; 12. First filter element; 2. Water storage tank; 21. Water storage cavity; 22. Second cover; 221. Guide groove; 23. Second housing; 3. First pump body; 31. Pump inlet; 32. Pump outlet; 4. One-way control structure; 41. Rubber stopper; 42. Top rod; 43. Elastic element; 5. Second filter element; 6. Main housing; 7. Second pump body; 8. Water supply pipe; 9. Fan. Detailed Implementation

[0029] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Example 1

[0034] Please see Figures 1 to 6This embodiment discloses a humidifier, including: a water storage tank 2 with a water storage cavity 21; a filter element assembly 1 including a purified water tank 11 and a first filter element 12, the purified water tank 11 being disposed above the water storage tank 2, the first filter element 12 being disposed inside the purified water tank 11, the purified water tank 11 having a tank inlet 113 and a tank outlet 114, both of which are connected to the water storage cavity 21; a first pump body 3 disposed in the water storage cavity 21 or the purified water tank 11; and a one-way control structure 4 disposed between the water storage cavity 21 and the tank inlet 113; when the first pump body 3 is started, the one-way control structure 4 can be opened to allow liquid to flow from the water storage cavity 21 through the tank inlet 113, the first filter element 12, and the tank outlet 114 in sequence; when the first pump body 3 is stopped, the one-way control structure 4 can be reset and closed to restrict the flow of liquid from the tank inlet 113 to the water storage cavity 21.

[0035] The humidifier disclosed in this embodiment has two advantages. First, the purified water tank 11 is placed above the water storage tank 2. By setting an independent purified water tank 11, the filter element assembly 1 is not directly immersed in the water storage tank 2, making it easier to clean the filter element assembly 1. Second, by setting a one-way control structure 4, when the first pump body 3 stops working, it can prevent liquid that has not completely passed through the filter element assembly 1 from flowing back into the water storage tank 2, effectively ensuring the water quality of the liquid in the water storage tank 2.

[0036] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the purified water tank 11 includes a bottom wall 115, which separates the water storage chamber 21 and the cavity of the purified water tank 11. Thus, the bottom wall 115, as a partition structure, makes reasonable use of the internal space of the humidifier. It separates the water storage chamber 21 and the cavity of the purified water tank 11, making their functions more distinct. It also avoids problems such as poor liquid flow and impurity mixing caused by shared space. This optimized spatial layout helps improve the compactness and rationality of the humidifier's internal structure, making the overall design of the humidifier more scientific and efficient. Specifically, the design of the bottom wall 115 makes the purified water tank 11 and the water storage chamber 21 structurally relatively independent. This independent structure brings great convenience when the humidifier needs cleaning and maintenance. For example, when replacing the filter element or cleaning the inside of the purified water tank 11, the operation can be carried out more specifically without worrying that the condition inside the water storage chamber 21 will interfere with the cleaning work, which greatly improves the efficiency and effectiveness of maintenance and cleaning. At the same time, when cleaning the impurities inside the water storage chamber 21, the filter element assembly 1 inside the purified water tank 11 will not be affected, avoiding secondary pollution of the filter element during the cleaning process.

[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the purified water tank 11 includes a first cover 112 and a first housing 111, with the bottom wall 115 serving as the bottom wall of the first housing 111. The first cover 112 is detachably connected to the top of the first housing 111, and the first filter element 12 is connected to the first cover 112. Thus, on the one hand, the first cover 112 is detachably connected to the top of the first housing 111, and the first filter element 12 is connected to the first cover 112. This design allows for easy installation and replacement of the first filter element 12 by simply removing the first cover 112 from the first housing 111, eliminating the need for complex disassembly of the entire purified water tank 11. This greatly simplifies the filter replacement process, saving time and effort. For users, this makes humidifier maintenance more convenient and faster, improving the user experience. On the other hand… In terms of cleaning, the removable first cover 112 provides great convenience when the inside of the purified water tank 11 needs to be cleaned. After removing the first cover 112, the inside of the first tank 111 can be thoroughly cleaned directly to remove any accumulated dirt, impurities, etc. Moreover, since the first filter element 12 is connected to the first cover 112, the filter element can avoid interfering with the cleaning work during the cleaning process, ensuring that the inside of the purified water tank 11 can be thoroughly cleaned, thereby ensuring a hygienic environment inside the purified water tank 11 and improving the humidified air quality of the humidifier.

[0038] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, more preferably, in this embodiment, a connecting thread is provided between the first cover 112 and the first box 111, and the first cover 112 can be screwed onto the first box 111 through the connecting thread.

[0039] It should be noted that in some other embodiments, the first cover 112 and the first box 111 may also be connected by snap-fit, but not limited to snap-fit. The choice can be made according to actual needs, and no single limitation is made here.

[0040] It should be noted that in some other embodiments, the first filter element 12 can also be connected to the first housing 111, depending on the actual needs.

[0041] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, preferably, in this embodiment, the purified water tank 11 is detachably mounted above the water storage tank 2, making the cleaning and maintenance of the purified water tank 11 extremely convenient. When dirt, impurities, or filter elements need to be replaced inside the purified water tank 11, the user only needs to remove the purified water tank 11 from above the water storage tank 2 to perform a thorough cleaning and filter element replacement operation. This eliminates the need for difficult operations in a confined space, greatly improving the efficiency of cleaning and maintenance, while also ensuring thorough cleaning and helping to extend the service life of the purified water tank 11 and the filter elements.

[0042] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the pump inlet 31 of the first pump body 3 is connected to the tank outlet 114, and the pump outlet 32 ​​of the first pump body 3 is connected to the water storage chamber 21. When the first pump body 3 starts, it can generate negative pressure in the purified water tank 11 and open the one-way control structure 4. Thus, on the one hand, the first pump body 3 is connected to the tank outlet 114, and when it starts, it can generate negative pressure in the purified water tank 11. This negative pressure can effectively promote the liquid in the water storage chamber 21 to quickly and smoothly enter the purified water tank 11 through the tank inlet 113. Compared with the traditional positive pressure driving method, negative pressure suction can more efficiently overcome the resistance of liquid flow and ensure that the liquid flows continuously and stably to the filter element assembly 1. This allows the filter element assembly 1 to have more sufficient contact with the liquid, improves the filtration efficiency, and ensures that more liquid is filtered in a short time, thereby meeting the humidifier's need for rapid humidification. On the other hand, when the first pump body 3 starts... The negative pressure generated, in conjunction with the one-way control structure 4, can precisely control the flow direction of the liquid. Under the action of negative pressure, the one-way control structure 4 opens, so that the liquid can only flow in the direction of water storage chamber 21 - tank inlet 113 - purified water tank 11 - tank outlet 114. This one-way flow design avoids the disorderly flow of liquid in the system and ensures the stability and reliability of the filtration process. At the same time, when the first pump body 3 stops working, the one-way control structure 4 can quickly reset and close, effectively preventing the liquid in the purified water tank 11 that has not completely passed through the filter element assembly 1 from flowing back into the water storage chamber 21, further ensuring the water quality of the liquid in the water storage chamber 21.

[0043] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, preferably, in this embodiment, the outlet 114 of the humidifier has a guide wall 116 extending into the cavity of the purified water tank 11, and the pump inlet 31 of the first pump body 3 is inserted into the guide wall 116. Thus, on the one hand, the guide wall 116 extending into the cavity of the purified water tank 11, combined with the design of the pump inlet 31 of the first pump body 3 being inserted into the guide wall 116, can more effectively guide the liquid flow. The guide wall 116 plays a role in converging and guiding the liquid, allowing the liquid flowing out of the cavity of the purified water tank 11 to flow more concentratedly and smoothly to the pump inlet 31 of the first pump body 3. This avoids disorderly flow of liquid within the cavity of the purified water tank 11, reduces the resistance to liquid flow, and improves the efficiency of liquid delivery. In this way, more liquid can be filtered through the filter assembly 1 per unit time, thereby improving the overall filtration efficiency of the humidifier and ensuring the quality of the humidified air. On the other hand, the pump inlet 31 of the first pump body 3 is inserted into the guide wall 116, which makes the pump inlet 31 more closely and stably contacted with the liquid. When the pump body is working, it can draw liquid more stably, reducing problems such as pump body cavitation and vibration caused by unstable liquid flow. This stable pumping state helps to extend the service life of the first pump body 3, reduce the failure rate of the pump body, and improve the reliability and stability of the humidifier operation.

[0044] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the one-way control structure 4 is a check valve. The check valve includes a rubber plug 41, a push rod 42, and an elastic element 43. The rubber plug 41 is located inside the purified water tank 11 and connected to the push rod 42. The push rod 42 is movably disposed at the tank inlet 113, and the elastic element 43 is disposed between the push rod 42 and the tank inlet 113. Figure 4 As shown, when the first pump body 3 starts, the push rod 42 is moved by force to a position that separates the rubber stopper 41 from the tank inlet 113, the tank inlet 113 opens, and the elastic element 43 is compressed; as Figure 5 As shown, when the first pump body 3 stops, the elastic element 43 forces the push rod 42 to move to the position where the rubber stopper 41 seals the water inlet 113 of the tank. This achieves the following technical effects:

[0045] On the one hand, a check valve is used as the one-way control structure 4. Through the coordinated action of the rubber stopper 41, the push rod 42, and the elastic element 43, it can achieve precise control of the liquid flow direction. When the first pump body 3 starts, the push rod 42 moves under force, causing the rubber stopper 41 to separate from the tank inlet 113, opening the tank inlet 113, and allowing the liquid to smoothly enter the purified water tank 11 from the storage chamber 21. When the first pump body 3 stops, the elastic element 43 can immediately release its elastic force. The elastic force of the elastic element 43 drives the push rod 42 to move, causing the rubber stopper 41 to seal the tank inlet 113, effectively preventing the liquid in the purified water tank 11 that has not completely passed through the filter element assembly 1 from flowing back into the storage chamber 21. The precise control mechanism ensures the unidirectional flow of liquid in the humidifier, and the rapid response characteristic improves the working efficiency of the humidifier, avoids water pollution problems caused by liquid backflow, and ensures the stability and reliability of the humidification process.

[0046] On the other hand, the check valve consists of a rubber plug 41, a push rod 42, and an elastic element 43, with a relatively simple structure and fewer parts. This simple structure not only reduces manufacturing costs but also facilitates production and assembly. Furthermore, in terms of maintenance, its simple structure makes it easier to troubleshoot and repair malfunctions. Users can easily inspect, clean, and replace damaged parts of the check valve, reducing maintenance difficulty and costs.

[0047] It should be noted that in some other embodiments, the one-way control structure 4 may also be, but is not limited to, a one-way valve.

[0048] like Figure 2 and Figure 6As shown, specifically in this embodiment, the humidifier also includes a main housing 6, a second pump body 7, a water supply pipe 8, and a fan 9. The fan 9 is disposed in the main housing 6, the second pump body 7 is disposed in the water storage chamber 21, and the water supply pipe 8 connects the cavity of the main housing 6 and the water storage chamber 21. When the second pump body 7 is activated, it can be used to make the liquid flow from the water storage chamber 21 to the cavity of the main housing 6. Thus, on the one hand, the fan 9 is disposed in the main housing 6, the second pump body 7 is disposed in the water storage chamber 21, and the water supply pipe 8 connects the cavity of the main housing 6 and the water storage chamber 21. This structural design allows the humidifier to achieve multiple humidification modes or to complete the humidification process more efficiently. When the second pump body 7 is activated, it delivers the liquid from the water storage chamber 21 to the cavity of the main housing 6. Under the action of the fan 9, the liquid can be quickly atomized and diffused into the surrounding environment, greatly improving the humidification efficiency. Compared with the traditional single humidification mode, this design can flexibly adjust the humidification amount and humidification speed according to different usage scenarios and needs, meeting the diverse humidification needs of users. On the other hand, by placing the second pump body 7 within the water storage chamber 21 and connecting the main housing 6 and the water storage chamber 21 with the water supply pipe 8, the internal space of the humidifier is made efficient, resulting in a more compact and rational layout of the various components. This integrated design not only reduces the overall size of the humidifier, making it easier to carry and place, but also improves the stability and reliability of the system. The tighter connections between the components reduce the possibility of liquid leakage and malfunctions, ensuring the normal operation of the humidifier.

[0049] like Figure 2 As shown, specifically in this embodiment, the water storage tank 2 includes a second cover 22 and a second housing 23. The second cover 22 is connected to the second housing 23. Liquid discharged from the pump outlet 32 ​​can enter the second housing 23 through a guide structure provided at the second cover 22. Thus, the guide structure connects the pump outlet 32 ​​and the water storage chamber 21, accurately guiding the liquid discharged from the pump outlet 32 ​​into the water storage chamber 21. This design allows liquid that does not fully participate in the humidification cycle to flow back to the water storage chamber 21 during humidification operation, achieving liquid recycling. This not only improves water resource utilization and reduces waste but also ensures that there is always enough liquid in the water storage chamber 21 for the humidifier to operate continuously, extending the humidifier's continuous operating time.

[0050] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, preferably, in this embodiment, the tank inlet 113 has a protruding guide wall 117, which is inserted into the second cover 22 of the second housing 23. Thus, on the one hand, the protruding guide wall 117 of the tank inlet 113 is inserted into the second cover 22 of the second housing 23, and this insertion structure can form a relatively tight seal. During the operation of the humidifier, liquid enters the water storage chamber 21 from the tank inlet 113. The tight fit between the guide wall 117 and the second cover 22 can effectively prevent liquid leakage from the interface. This not only ensures that the liquid inside the humidifier does not leak, avoiding problems such as slippery ground and damage to electrical components caused by liquid leakage, but also maintains a stable liquid level in the water storage chamber 21, ensuring that the humidifier can operate continuously and normally. On the other hand, the outward protrusion design of the guide wall 117 provides precise positioning for its insertion into the second cover 22. During installation, the operator can easily align the guide wall 117 with the corresponding position of the second cover 22 and insert it without complicated adjustments and calibrations, which greatly improves installation efficiency. At the same time, this precise positioning also ensures that the connection between the tank inlet 113 and the water storage chamber 21 is accurate, so that the liquid can flow smoothly into the water storage chamber 21, reducing the problem of poor liquid flow or leakage caused by improper installation.

[0051] Specifically, in this embodiment, the humidifier is a mist-free humidifier.

[0052] Example 2

[0053] The main difference between this embodiment and Embodiment 1 is as follows: Please refer to... Figure 7 , Figure 8 and Figure 9 The second cover 22 has a recessed guide channel 221, which connects the pump outlet 32 ​​and the water storage chamber 21. The guide channel 221 guides the liquid discharged from the pump outlet 32 ​​into the water storage chamber 21. This design, with the guide channel 221 in a recessed position, precisely guides the liquid discharged from the pump outlet 32 ​​into the water storage chamber 21. Because the guide channel 221 is recessed, the liquid naturally flows along it under its own gravity, requiring no additional power. This achieves efficient and precise liquid guidance, which helps to quickly return liquid that has not participated in the humidification cycle to the water storage chamber 21, improving liquid recycling efficiency and ensuring a continuous and stable humidification effect for the humidifier.

[0054] Preferably, in this embodiment, the humidifier further includes a second filter element 5, which is disposed within the flow guide channel 221. Thus, by placing the second filter element 5 within the flow guide channel 221, the liquid returning to the water storage chamber 21 can undergo secondary filtration and purification. After humidification circulation, the liquid may carry some impurities, bacteria, microorganisms, and other harmful substances. The second filter element 5 can effectively intercept these contaminants, further improving water quality. This makes the liquid re-entering the humidification circulation purer, reducing humidifier malfunctions caused by water quality issues and their impact on humidified air quality, providing users with healthier and fresher humidified air.

[0055] In summary, the humidifier disclosed in this utility model can bring at least the following beneficial technical effects:

[0056] 1) The purified water tank 11 is set above the water storage tank 2. By setting up an independent purified water tank 11, the filter element assembly 1 is not directly immersed in the water storage tank 2, making it easier to clean the filter element assembly 1.

[0057] 2) By setting a one-way control structure 4, when the first pump body 3 stops working, it can prevent liquid that has not completely passed through the filter element assembly 1 from flowing back into the water storage tank 2, effectively ensuring the water quality of the liquid in the water storage tank 2.

[0058] 3) The bottom wall 115 serves as a partition structure, making reasonable use of the space inside the humidifier. It separates the water storage chamber 21 and the purified water tank 11, making their functions clearer and avoiding problems such as poor liquid flow and impurity mixing caused by mixed use of space.

[0059] 4) When dirt, impurities or filter elements accumulate inside the purified water tank 11, the user can simply remove the purified water tank 11 from the top of the water storage tank 2 to perform a comprehensive cleaning and filter element replacement operation. This eliminates the need for difficult operation in a confined space, greatly improving the efficiency of cleaning and maintenance, while also ensuring thorough cleaning and helping to extend the service life of the purified water tank 11 and the filter elements.

[0060] 5) The negative pressure generated when the first pump body 3 starts, in conjunction with the one-way control structure 4, can accurately control the flow direction of the liquid. The one-way control structure 4 opens under the action of negative pressure, so that the liquid can only flow in the direction of water storage chamber 21-tank inlet 113-purified water tank 11-tank outlet 114. This one-way flow design avoids the disorderly flow of liquid in the system and ensures the stability and reliability of the filtration process.

[0061] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A humidifier, characterized in that, include: Water storage tank (2) is provided with water storage cavity (21); The filter assembly (1) includes a purified water tank (11) and a first filter element (12). The purified water tank (11) is located above the water storage tank (2). The first filter element (12) is located inside the purified water tank (11). The purified water tank (11) has a tank inlet (113) and a tank outlet (114). Both the tank inlet (113) and the tank outlet (114) can communicate with the water storage chamber (21). The first pump body (3) is disposed in the water storage chamber (21) or the purified water tank (11); A one-way control structure (4) is disposed between the water storage chamber (21) and the tank inlet (113); when the first pump body (3) is started, the one-way control structure (4) can be opened to allow liquid to pass from the water storage chamber (21) through the tank inlet (113), the first filter element (12) and the tank outlet (114) in sequence; when the first pump body (3) is stopped, the one-way control structure (4) can be reset and closed to restrict the liquid from flowing from the tank inlet (113) to the water storage chamber (21).

2. The humidifier according to claim 1, characterized in that, The purified water tank (11) is detachably mounted above the water storage tank (2).

3. The humidifier according to claim 1, characterized in that, The purified water tank (11) includes a bottom wall (115) that separates the water storage chamber (21) from the cavity of the purified water tank (11).

4. The humidifier according to claim 3, characterized in that, The purified water tank (11) includes a first cover (112) and a first tank (111). The bottom wall (115) of the tank is the bottom wall of the first tank (111). The first cover (112) is detachably connected to the top of the first tank (111). The first filter element (12) is connected to the first cover (112).

5. The humidifier according to any one of claims 1-4, characterized in that, The pump inlet (31) of the first pump body (3) is connected to the outlet (114) of the tank, and the pump outlet (32) of the first pump body (3) is connected to the water storage chamber (21). When the first pump body (3) is started, it can generate negative pressure in the purified water tank (11) and open the one-way control structure (4).

6. The humidifier according to claim 5, characterized in that, The outlet (114) of the tank has a guide wall (116) extending into the cavity of the purified water tank (11), and the pump inlet (31) of the first pump body (3) is inserted into the guide wall (116).

7. The humidifier according to claim 5, characterized in that, The one-way control structure (4) is a check valve, which includes a rubber plug (41), a push rod (42) and an elastic element (43). The rubber plug (41) is located inside the purified water tank (11) and connected to the push rod (42). The push rod (42) is movably disposed at the tank inlet (113). The elastic element (43) is disposed between the push rod (42) and the tank inlet (113). When the first pump body (3) is started, the push rod (42) is moved by force to a position that separates the rubber plug (41) and the tank inlet (113), the tank inlet (113) is opened, and the elastic element (43) is compressed; When the first pump body (3) stops, the elastic element (43) drives the top rod (42) to move to the position where the rubber plug (41) seals the tank inlet (113).

8. The humidifier according to claim 1, 2, 3, 4, 6, or 7, characterized in that, The water storage tank (2) includes a second cover (22) and a second tank (23). The second cover (22) is connected to the second tank (23). The second cover (22) is recessed and provided with a guide groove (221). The guide groove (221) connects the tank outlet (114) and the water storage cavity (21). The guide groove (221) is used to guide the liquid discharged from the tank outlet (114) into the water storage cavity (21).

9. The humidifier according to claim 8, characterized in that, The humidifier also includes a second filter element (5), which is disposed in the guide groove (221).

10. The humidifier according to any one of claims 1, 2, 3, 4, 6, or 7, characterized in that, The humidifier also includes a main housing (6), a second pump body (7), a water supply pipe (8), and a fan (9). The fan (9) is located in the main housing (6), the second pump body (7) is located in the water storage chamber (21), the water supply pipe (8) connects the cavity of the main housing (6) and the water storage chamber (21), and the second pump body (7) can be used to make liquid flow from the water storage chamber (21) to the cavity of the main housing (6) when it is started.

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