Humidifying device and air purifier

Abstract

The utility model provides a humidifying device and an air purifier. The humidifying device comprises a water tank, a wet curtain assembly and a water level monitoring and water path module, the water level monitoring and water path module comprises a separation cover arranged in the water tank and provided with a separation cavity extending from the bottom of the separation cover to the top of the separation cover, and a water inlet used for communicating the separation cavity with the water tank is formed in the bottom of the separation cover; a water return port communicated with the separation cavity is formed in the top of the separation cover, so that redundant water of the wet curtain assembly flows back to the separation cavity through the water return port; the water level monitoring assembly is arranged in the separation cavity and used for monitoring the water level in the separation cavity; the water pump is arranged in the partition cavity and used for feeding water in the partition cavity into the wet curtain assembly. According to the humidification device, redundant water of the wet curtain assembly flows back into the separation cover, due to the fact that the space in the separation cover is small, the redundant water can flow along the inner wall of the separation cover more easily, water surface fluctuation caused by splashing is avoided, and then the monitored water level is accurate.

Description

Technical Field

[0001] This application belongs to the field of humidification technology, and particularly relates to a humidification device and an air purifier having the humidification device. Background Technology

[0002] With the development of air purification technology, air purifiers have become more and more diversified. In addition to removing harmful substances from the air, some air purifiers have added humidification functions to meet the need to eliminate room dryness.

[0003] Air purifiers with humidification functions are equipped with a water tank and a wet curtain assembly. The water tank supplies water to the wet curtain assembly to humidify the air, and excess water in the wet curtain assembly flows back into the water tank. To ensure the humidification operation of the wet curtain assembly, the water level in the water tank needs to be monitored to continuously supply water to the assembly. In existing technologies, water level monitoring and return are independent, which has disadvantages such as large space occupation, uncoordinated monitoring and return, water splashing, and large fluctuations in the water level, leading to inaccurate water level monitoring. In addition, the dripping sound when water flows back into the tank increases noise levels. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of this application is to provide a humidification device that integrates water level monitoring and water return to accurately monitor the water level in the water tank and reduce noise.

[0005] The technical solution adopted in this application embodiment is a humidification device, including a water tank and a wet curtain assembly, and further including a water level monitoring and water circuit module, wherein the water level monitoring and water circuit module includes:

[0006] A partition cover is disposed inside the water tank and has a partition cavity extending from its bottom to its top. The bottom of the partition cover has a water inlet for connecting the partition cavity and the water tank so that the water level in the partition cavity is the same as the water level in the water tank. The top of the partition cover is opposite to the bottom of the wet curtain assembly and has a water return outlet communicating with the partition cavity so that excess water at the bottom of the wet curtain assembly flows back to the partition cavity through the water return outlet.

[0007] A water level monitoring component, which is disposed in the partition cavity, is used to monitor the water level in the partition cavity;

[0008] A water pump, located within the partition chamber, is used to pump water from the partition chamber to the top of the wet curtain assembly.

[0009] In this embodiment of the humidifier, excess water from the wet curtain assembly flows back into the partition hood. Since the water surface area inside the partition hood is much smaller than that in the water tank, the water surface fluctuations are smaller, and the monitored water level is more accurate. Moreover, because the space inside the partition hood is smaller, excess water flows more easily along the inner wall of the partition hood, avoiding splashing and water surface fluctuations.

[0010] In an optional embodiment, the water pump has a water level opposite to the return water inlet, and a rubber pad is provided on the water level to reduce noise.

[0011] In an optional embodiment, the water level monitoring component includes a Hall element, a buoy, and a prompting component. The Hall element is disposed on the partition cover, and the buoy is disposed within the partition cavity and can rise and fall with the liquid level. A magnetic ring is disposed inside the buoy. When the buoy rises to a first preset height, the Hall element senses the change in the magnetic field and sends a first signal to the prompting component, which then performs a prompting operation; and / or

[0012] The water level monitoring component also includes a water level sensor and a controller. The controller is connected to both the water level sensor and the water pump. The water level sensor is mounted on the water pump. When the water level inside the partition hood drops to a second preset height, the water level sensor sends a second signal to the controller, which then controls the water pump to shut down. The first preset height is higher than the second preset height. By installing the water level monitoring component, the water level in the tank can be accurately monitored, preventing the tank from continuing to fill with water when it has reached its maximum level and preventing the water pump from operating without water.

[0013] In an optional embodiment, the water level monitoring and water circuit module further includes a mounting bracket fixed in the partition cavity, the mounting bracket having a guide rod extending vertically;

[0014] The Hall element is fixed to the mounting bracket, and the buoy is sleeved on the guide rod and can move along the guide rod. The bottom and top of the guide rod are respectively provided with limiting components to prevent the buoy from detaching. The guide rod formed on the mounting bracket limits the buoy's rising and falling trajectory, preventing it from deviating during water surface fluctuations, thus enabling it to cooperate with the Hall element to monitor the water level.

[0015] In an optional embodiment, the water level monitoring and water circuit module further includes a mounting bracket fixed within the partition cavity. The mounting bracket has a vertically extending channel, the lower end of which communicates with the outlet of the water pump, and the upper end of which connects to the evaporative cooling pad assembly, for delivering water pumped by the water pump into the evaporative cooling pad assembly. Forming a water pump delivery channel on the mounting bracket simplifies the structure and increases its stability.

[0016] In an optional embodiment, the bottom of the partition cover is located near the bottom of the water tank; the water pump is located at the bottom of the partition cavity; the water inlet is located on the side of the partition cover, and a filter box is provided on the water inlet. This ensures the cleanliness of the water supplied to the wet curtain and improves hygiene and safety.

[0017] In an optional embodiment, the evaporative cooling pad assembly includes an evaporative cooling pad support, an evaporative cooling pad, and a water distribution tray. The evaporative cooling pad is fitted over the evaporative cooling pad support, and the water distribution tray is located on top of the evaporative cooling pad. The water distribution tray has an annular sealed cavity, and the bottom of the annular sealed cavity has water holes corresponding to the top of the evaporative cooling pad. The water holes are used to distribute water from the annular sealed cavity to the evaporative cooling pad. The evaporative cooling pad support has a vertically extending water guide pipe. The lower end of the water guide pipe communicates with the upper end of the channel, and the upper end of the water guide pipe extends into the annular sealed cavity of the water distribution tray. The evaporative cooling pad assembly has a reasonable structure, which allows water to wet the entire evaporative cooling pad from the top, ensuring the humidification effect.

[0018] In an optional embodiment, the evaporative cooling pad assembly further includes a water collection tray located below the evaporative cooling pad; the water collection tray is disposed on the top of the water tank and has a through hole corresponding to the return water inlet of the partition cover, so that water collected in the water collection tray flows into the return water inlet through the through hole. By providing a water collection tray, it is convenient to collect excess water from the evaporative cooling pad assembly and send the excess water to the return water inlet.

[0019] In an optional embodiment, the water receiving tray has an annular cavity with an open top, and the bottom of the annular cavity has the through hole;

[0020] The evaporative cooling pad assembly also includes a water collection tray cover, which is annular and positioned within the annular cavity of the water collection tray cover. The water collection tray cover has an annular groove with its opening facing upwards, and the bottom of the annular groove has a drainage hole. The bottom of the evaporative cooling pad bracket is fixed to the annular groove by a fastener. The evaporative cooling pad bracket and the water collection tray cover are assembled as a whole and can be placed inside the water collection tray, facilitating the collection of excess water from the evaporative cooling pad assembly into the water collection tray.

[0021] This application also provides an air purifier, which includes a main body and an airflow guiding component. The airflow guiding component is located in the upper part of the main body and guides airflow from the air inlet to the air outlet of the main body. The air purifier also includes a humidification device as described in any of the above embodiments. The humidification device is located in the lower part of the main body and in the airflow path, and is used to humidify the air. The air purifier of this application embodiment has low noise and accurate water level monitoring in the water tank, avoiding water pump operation due to water shortage.

[0022] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: This application integrates water level monitoring and water return into a module, namely water level monitoring and water circuit module, and places the module in the water tank. The module is small in size and has a small internal space, which makes it easier for the water to flow down along the inner wall of the partition cover. It is not easy to form the sound of water droplets falling on the water surface, thereby reducing noise. In addition, the water surface fluctuation is small and the water level monitoring accuracy is higher.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this application.

[0024] The overview of various implementations or examples of the technology described in this application is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0025] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.

[0026] Figure 1 This is an exploded view of the humidification device according to an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view of a humidification device according to an embodiment of this application, wherein the buoy is in a high position.

[0028] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0029] Figure 4 This is a cross-sectional view of a humidification device according to an embodiment of this application, wherein the buoy is in a low position.

[0030] Figure 5 for Figure 4 Enlarged view of section B.

[0031] Figure 6 This is a schematic diagram of the assembly of the water pump and the mounting bracket according to an embodiment of this application.

[0032] Figure 7 This is a schematic diagram of the assembly of the water level monitoring component and the mounting bracket according to an embodiment of this application.

[0033] Figure 8 This is a schematic diagram of the assembly of the water receiving tray and the water tank according to an embodiment of this application.

[0034] Figure 9 This is a schematic diagram of the assembly of the water receiving tray and the water level monitoring and water circuit module according to an embodiment of this application.

[0035] Figure 10 This is a schematic diagram of the structure of the water level monitoring and waterway module according to an embodiment of this application.

[0036] Figure 11 This is a cross-sectional view of an air purifier according to an embodiment of this application.

[0037] Figure label:

[0038] 1-Water level monitoring and water circuit module; 11-Separation cover; 111-Separation chamber; 112-Inlet; 113-Outlet; 12-Hall element; 13-Buoy; 14-Water pump; 141-Flat top surface; 142-Rubber pad; 15-Mounting bracket; 151-Frame; 152-Guide rod; 153-Channel; 16-Snap ring; 17-Bottom cover; 18-Silicone tube;

[0039] 2-Filter box;

[0040] 3-Wet curtain assembly; 31-Wet curtain bracket; 32-Wet curtain; 33-Water distribution tray; 331-Annular sealing cavity; 34-Water guide pipe; 35-Water receiving tray; 351-Annular cavity; 352-Through hole; 36-Water receiving tray cover; 361-Annular groove; 362-Leakage hole;

[0041] 4-Water tank; 41-Tank cover; 42-Opening;

[0042] 10-Body; 101-Air inlet; 102-Air outlet; 20-Airflow guide assembly. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0044] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] To keep the following description of the embodiments of this application clear and concise, detailed descriptions of known functions and known components are omitted.

[0046] This application provides a humidification device for use, for example, in an air purifier, to humidify the air.

[0047] like Figure 1 , Figure 2 and Figure 4 As shown, the humidification device of this embodiment includes a water tank 4, a wet curtain assembly 3, and a water level monitoring and water circuit module 1. The water level monitoring and water circuit module 1 is located inside the water tank 4 and includes a partition cover 11, a water level monitoring assembly, and a water pump 14. The partition cover 11 is located inside the water tank 4 and has a partition cavity 111 extending from its bottom to its top. The bottom of the partition cover 11 has an inlet 112 for connecting the partition cavity 111 and the water tank 4, so that the water level in the partition cavity 111 is the same as the water level in the water tank 4. The top of the partition cover 11 is opposite to the bottom of the wet curtain assembly 3, and the top of the partition cover 11 has a return water inlet 113 communicating with the partition cavity 111, so that excess water at the bottom of the wet curtain assembly 3 flows back to the partition cavity 111 through the return water inlet 113. A water level monitoring component is installed inside the partition chamber 111 to monitor the water level inside the partition chamber 111. Since the water level inside the partition chamber 111 is the same as the water level inside the water tank 4, the water level monitored by the water level monitoring component is the water level in the water tank 4. A water pump 14 is installed inside the partition chamber 111 to pump the water inside the partition chamber 111 to the top of the wet curtain assembly 3.

[0048] The humidification device in this application integrates water level monitoring and water return into one module. The water surface area separated by the partition cover 11 is small, so the water will not splash everywhere and reduce noise. Moreover, the water surface fluctuation is small, the water surface is more stable, and the water level monitoring accuracy is high.

[0049] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the water pump 14 has a drain position opposite to the return water inlet 113, and a rubber pad 142 is provided on the drain position. (See Figure 14) Figure 6 When the water level is low and the water pump 14 is exposed, the water returning from the return port 113 will fall onto the rubber pad 142 at the water level, avoiding dripping and reducing noise.

[0050] One or more return water inlets 113 can be installed, and the area where the return water inlets 113 are located forms a return water zone. (Continue with...) Figure 6 The top of the water pump 14 has a flat top surface 141 that is larger than the return water area, that is, the flat top surface 141 can cover the return water area, and the flat top surface 141 forms a drop water level, on which the water flowing back from the return water area basically falls. In this way, noise can be reduced to the minimum.

[0051] In addition to covering the flat top surface 141 that serves as the water droplet, the rubber pad 142 can also cover the sides and bottom of the water pump 14, so that the water pump 14 makes soft contact with the partition cover 11, reducing the noise of the water pump 14 during operation.

[0052] In some embodiments, such as Figure 7 As shown, the water level monitoring component includes a Hall element 12, a float 13, and a prompting component. The Hall element 12 is mounted on the partition cover 11, and the float 13 is located inside the partition cavity 111 and can rise and fall with the liquid level. A magnetic ring (not shown in the figure) is installed inside the float 13. When the float 13 rises to a first preset height, the Hall element 12 senses the change in the magnetic field and sends a first signal to the prompting component. The prompting component then performs a prompting operation, informing the user that the water tank 4 is full and to stop adding water to the water tank 4. The prompting component may include various structures that perform the prompting operation through sound, light, vibration, etc., including but not limited to indicator lights, buzzers, speakers, displays, etc. By setting up the water level monitoring component, the water level status in the water tank 4 can be obtained in a timely manner, avoiding the situation where water continues to be added to the water tank 4 even when the water level has reached the maximum level, causing the water tank 4 to overflow.

[0053] It is understandable that when the water level inside the partition shroud 11 causes the float 13 to rise to the first preset height, although adding water to the water tank 4 has stopped, the actual water level is higher than the water level at the first preset height due to the backflow of excess water in the wet curtain assembly 3. Therefore, the first preset height should be set to be lower than the maximum limit water level of the water tank 4. Figure 2 and Figure 4 The red horizontal line represents the water level, and the green wavy line represents water level fluctuations.

[0054] Furthermore, the water level monitoring component also includes a water level sensor and a controller, with the controller connected to both the water level sensor and the water pump 14. The water level sensor is mounted on the water pump 14. When the water level inside the partition shroud 11 falls below a second preset height, the water level sensor sends a second signal to the controller, which then shuts off the water pump 14. The first preset height is higher than the second preset height. By using a water level sensor and a controller, the water pump 14 can be automatically shut off when the water level in the water tank 4 is too low, preventing the water pump 14 from running dry and potentially damaging it.

[0055] In some embodiments, such as Figure 3 and Figure 5 As shown, the water level monitoring and water circuit module 1 also includes a mounting bracket 15 fixed inside the partition cavity 111. The Hall element 12 is fixed on the mounting bracket 15, thereby realizing the installation of the Hall element 12 on the partition cover 11. The mounting bracket 15 includes a frame 151 and a guide rod 152 extending vertically downward from the bottom of the frame 151. The buoy 13 is sleeved on the guide rod 152 and can move (rise and fall) along the guide rod 152 under the action of water buoyancy. The bottom and top of the guide rod 152 are respectively provided with limiting components to prevent the buoy 13 from falling off. See [reference]. Figure 7 By setting the guide rod 152, the rising and falling trajectory of the buoy 13 can be limited, preventing it from deviating from its normal position when the water surface fluctuates, so that it can cooperate with the Hall element 12 to monitor the water level.

[0056] like Figure 7 As shown, the bottom of the frame 151, in the radial direction parallel to the guide rod 152, is larger than the cross-sectional dimension of the guide rod 152. This ensures that when the buoy 13 rises to the top of the guide rod 152, it will be stopped by the bottom of the frame 151, preventing it from rising further and from detaching from the top of the guide rod 152. The frame 151 thus forms a limiting component at the top of the guide rod 152. This saves parts and simplifies the structure. The limiting component at the bottom of the guide rod 152 can be a retaining spring 16, which has a simple structure and is easy to install.

[0057] Continue to combine Figure 7 The frame 151 has a cavity extending to the top of the guide rod 152. The lower end of the Hall element 12 extends into the cavity at the top of the guide rod 152, so that when the float 13 rises to the top of the guide rod 152, it fits precisely over the lower part of the Hall element 12, triggering the Hall element 12 to generate a first position signal. The Hall element 12 can be fixed in the cavity by potting glue, making the Hall element 12 sealed and waterproof.

[0058] In some embodiments, such as Figure 7As shown, the mounting bracket 15 has a vertically extending channel 153. The lower end of the channel 153 communicates with the outlet of the water pump 14, and the upper end of the channel 153 is connected to the evaporative cooling pad assembly 3 for conveying water pumped by the water pump 14 into the evaporative cooling pad assembly 3. (See Figure 153 for details.) Figure 2 and Figure 4 The water pump 14's water delivery channel 153 is directly formed on the mounting bracket 15, avoiding the need for a separate water delivery pipe, simplifying the structure and improving overall stability. To facilitate the connection between the water pump 14's outlet and the lower end of the channel 153, a silicone tube 18 can be added. The two ends of the silicone tube 18 are connected to the water pump 14's outlet and the lower end of the channel 153, respectively. (See [reference]). Figure 3 and Figure 5 .

[0059] In some embodiments, the bottom of the partition cover 11 is located near the bottom of the water tank 4, and the water pump 14 is located at the bottom of the partition cavity 111 so that water can be drawn in even when the water level in the water tank 4 is low, thus preventing the water in the water tank 4 from running out. The water inlet 112 is located on the side of the partition cover 11, and a filter box 2 is provided on the water inlet 112 to perform sterilization and filtration on the water entering the partition cover 11, ensuring hygiene and safety and protecting the water pump 14.

[0060] To facilitate the installation and removal of the water pump 14 within the partition cover 11, the bottom of the partition cover 11 can be designed as an open opening, which is sealed or opened by a bottom cover 17. (See [reference]). Figure 2 and Figure 4 The water pump 14 can be directly fixed to the inside of the bottom cover 17 and inserted into the partition cover 11 through the opening. Then, the bottom cover 17 is fixed to the bottom of the partition cover 11, thereby encapsulating the water pump 14 inside the partition cover 11.

[0061] In some embodiments, such as Figure 1 As shown, the evaporative cooling pad assembly 3 includes an evaporative cooling pad bracket 31, an evaporative cooling pad 32, and a water distribution tray 33. Figure 2 and Figure 4As shown, the evaporative cooling pad 32 is fitted over the evaporative cooling pad support 31, and the water distribution plate 33 is located on top of the evaporative cooling pad 32 and fixed to the top of the evaporative cooling pad support 31 by a movable fastener. The water distribution plate 33 has an annular sealing cavity 331, and the bottom of the annular sealing cavity 331 has water holes corresponding to the top of the evaporative cooling pad 32. These water holes are used to distribute water from the annular sealing cavity 331 onto the evaporative cooling pad 32. To ensure uniform wetting of the evaporative cooling pad 32, multiple water holes can be evenly arranged at the bottom of the annular sealing cavity 331. The evaporative cooling pad support 31 has a vertically extending water guide pipe 34, the lower end of which connects to the upper end of the channel 153, and the upper end of which extends into the annular sealing cavity 331 of the water distribution plate 33. In this way, the water in the water tank 4 is smoothly fed into the water distribution plate 33 through the water pump 14, the channel 153, and the water guide pipe 34, and is evenly distributed on the wet curtain 32 from the top to wet the entire wet curtain 32, ensuring the humidification effect. Moreover, by setting an annular sealing cavity 331 in the water distribution plate 33, the pressure in the annular sealing cavity 331 increases during the process of water being supplied to the annular sealing cavity 331, which facilitates the water in it to enter the wet curtain 32 through the water holes, thereby improving the humidification effect of the wet curtain 32.

[0062] In some embodiments, such as Figure 1 As shown, the evaporative cooling pad assembly 3 also includes a water collection tray 35 located below the evaporative cooling pad 32. The water collection tray 35 is located on top of the water tank 4 and has a through hole 352 corresponding to the return water inlet 113 on the partition cover 11. (See Figure 11) Figure 8 The water that has not evaporated or evaporated in the wet curtain 32 flows downward along the wet curtain 32 under the action of gravity and collects in the water receiving tray 35. Then it flows from the water receiving tray 35 to the return water inlet 113 and flows back into the partition cover 11.

[0063] The return water inlet 113 of the partition cover 11 can be one or more. For example, the top of the partition cover 11 has a large opening. The top of the water tank 4 is provided with a tank cover 41, which has an opening 42. The water receiving tray 35 is inserted into the water tank 4 through the opening 42, connecting with the partition cover 11 and sealing the opening of the partition cover 11. The portion of the water receiving tray 35 corresponding to the opening has a through hole 352. This opening forms the return water inlet 113 of the partition cover 11. The through hole 352 can be offset from the center of the opening and closer to the periphery of the opening, so that the water entering the return water inlet 113 through the through hole 352 flows downward along the inner wall, avoiding water from dripping directly onto the water surface and splashing everywhere and producing a dripping sound, thereby reducing water surface ripples and noise.

[0064] like Figure 8 As shown, the water receiving tray 35 has an annular cavity 351 with an open top, and a through hole 352 is located at the bottom of the annular cavity 351.

[0065] In some embodiments, continue to combine Figure 1The evaporative cooling pad assembly 3 also includes a water tray cover 36, which is annular and has an upward-facing annular groove 361. The bottom of the annular groove 361 has a drainage hole 362. The bottom of the evaporative cooling pad bracket 31 is fixed to the annular groove 361 via a snap-fit ​​mechanism, thus assembling the evaporative cooling pad bracket 31 and the water tray cover 36 together. While the bottom of the evaporative cooling pad bracket 31 is fixed to the annular groove 361, the bottom of the evaporative cooling pad 32 is also located within the annular groove 361 of the water tray cover 36. The water tray cover 36 is placed within an annular cavity 351, allowing excess water flowing down the evaporative cooling pad 32 to enter the water tray 35 through the drainage hole 362, and then flow back into the water return port 113 of the partition cover 11 through the through hole 352 on the water tray 35, returning to the partition cover 11.

[0066] The water return principle of the humidification device in this embodiment is as follows: Water is filled into the water tank 4, and the water enters the partition cover 11 through the filter box. The water pump pumps water, which then passes through the silicone tube 18 and the channel 153 of the mounting bracket 15, through the water receiving tray 35, and then through the water guide pipe 34 into the water distribution tray 33. Water holes are opened on the contact surface between the bottom of the water distribution tray 33 and the wet curtain 32. Under the pressure of the water pump, the water in the water distribution tray 33 is forced out through the water holes and flows onto the wet curtain 32 by gravity. It then flows back from the bottom of the wet curtain 32 to the water receiving tray 35, and enters the return water port 113 of the partition cover 11 through the through hole 352 near the partition cover 11 on the water receiving tray 35. Figure 2 The direction of the middle arrow indicates the direction of water flow. Because the space inside the partition 11 is smaller than the space inside the water tank 4, the water surface is more stable. However, the space inside the water tank 4 is larger, and when the humidifier is used with the air purifier, the air purifier will cause waves to form on the water surface in the water tank 4 during operation, resulting in an unstable water surface. The space isolated by the partition 11 contains very little water, and the isolated water surface is more stable than the water surface inside the water tank 4. Therefore, the monitored water level is more accurate.

[0067] like Figure 11 As shown, this application also provides an air purifier, which includes a body 10 and an airflow guide assembly 20. The airflow guide assembly 20 is located in the upper part of the body 10 and is used to guide air from the air inlet 101 of the body 10 to the air outlet 102 of the body 10. The air purifier also includes a humidification device as described in any of the above embodiments. The humidification device is located in the lower part of the body 10 and is situated in the airflow path, and is used to humidify the air. Because the air purifier includes the humidification device described above, it has a humidification function and also has the advantages of low noise, accurate water level detection in the water tank 4 to avoid water shortage, and timely water filling.

[0068] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A humidification device, comprising a water tank (4) and a wet curtain assembly (3), characterized in that, It also includes a water level monitoring and waterway module (1), which includes: A partition cover (11) is disposed inside the water tank (4) and has a partition cavity (111) extending from its bottom to its top. The bottom of the partition cover (11) is provided with a water inlet (112) for connecting the partition cavity (111) and the water tank (4) so ​​that the water level in the partition cavity (111) is the same as the water level in the water tank (4). The top of the partition cover (11) is opposite to the bottom of the wet curtain assembly (3) and is provided with a return water inlet (113) communicating with the partition cavity (111) so that excess water at the bottom of the wet curtain assembly (3) flows back to the partition cavity (111) through the return water inlet (113). A water level monitoring component is disposed in the partition cavity (111) for monitoring the water level in the partition cavity (111); A water pump (14) is located in the partition cavity (111) for pumping water from the partition cavity (111) to the top of the wet curtain assembly (3).

2. The humidification device according to claim 1, characterized in that, The water pump (14) has a drop position opposite to the return water inlet (113), and a rubber pad (142) is provided on the drop position.

3. The humidification device according to claim 2, characterized in that, The water level monitoring component includes a Hall element (12), a buoy (13), and a prompting component. The Hall element (12) is mounted on the partition cover (11), and the buoy (13) is located within the partition cavity (111) and can rise and fall with the liquid level. A magnetic ring is installed inside the buoy (13). When the buoy (13) rises to a first preset height, the Hall element (12) senses the change in the magnetic field and sends a first signal to the prompting component, which then performs a prompting operation; and / or The water level monitoring component also includes a water level sensor and a controller. The controller is connected to the water level sensor and the water pump (14) respectively. The water level sensor is located on the water pump (14). When the water level in the partition cover (11) drops to a second preset height, the water level sensor sends a second signal to the controller, and the controller controls the water pump (14) to shut down. The first preset height is higher than the second preset height.

4. The humidification device according to claim 3, characterized in that, The water level monitoring and waterway module (1) also includes a mounting bracket (15) fixed in the partition cavity (111), the mounting bracket (15) having a guide rod (152) extending vertically; The Hall element (12) is fixed on the mounting bracket (15), the buoy (13) is sleeved on the guide rod (152) and can move along the guide rod (152). The bottom and top of the guide rod (152) are respectively provided with limiting components to restrict the buoy (13) from falling off.

5. The humidification device according to claim 1, characterized in that, The water level monitoring and water circuit module (1) also includes a mounting bracket (15) fixed in the partition cavity (111). The mounting bracket (15) has a vertically extending channel (153). The lower end of the channel (153) is connected to the outlet of the water pump (14), and the upper end of the channel (153) is connected to the wet curtain assembly (3) for sending the water pumped by the water pump (14) into the wet curtain assembly (3).

6. The humidification device according to claim 1, characterized in that, The bottom of the partition cover (11) is located near the bottom of the water tank (4); the water pump (14) is located at the bottom of the partition cavity (111); the water inlet (112) is located on the side of the partition cover (11), and a filter box (2) is provided on the water inlet (112).

7. The humidification device according to claim 5, characterized in that, The wet curtain assembly (3) includes a wet curtain bracket (31), a wet curtain (32), and a water distribution plate (33). The wet curtain (32) is sleeved on the outside of the wet curtain bracket (31). The water distribution plate (33) is located on the top of the wet curtain (32). The water distribution plate (33) has an annular sealing cavity (331). The bottom of the annular sealing cavity (331) is provided with water holes corresponding to the top of the wet curtain (32). The water holes are used to distribute the water in the annular sealing cavity (331) to the wet curtain (32). The wet curtain bracket (31) is provided with a vertically extending water guide pipe (34). The lower end of the water guide pipe (34) is connected to the upper end of the channel (153). The upper end of the water guide pipe (34) extends into the annular sealing cavity (331) of the water distribution plate (33).

8. The humidification device according to claim 7, characterized in that, The wet curtain assembly (3) also includes a water receiving tray (35) located below the wet curtain (32); the water receiving tray (35) is located on the top of the water tank (4) and has a through hole (352) corresponding to the return water port (113) of the partition cover (11), so that the water collected in the water receiving tray (35) flows into the return water port (113) through the through hole (352).

9. The humidification device according to claim 8, characterized in that, The water receiving tray (35) is provided with an annular cavity (351) with an open top, and the bottom of the annular cavity (351) is provided with the through hole (352); The wet curtain assembly (3) further includes a water receiving tray cover (36), which is annular and placed in the annular cavity (351) of the water receiving tray cover (36). The water receiving tray cover (36) has an annular groove (361) with the opening facing upward, and the bottom of the annular groove (361) has a water leakage hole (362). The bottom of the wet curtain bracket (31) is fixed in the annular groove (361) by a fastener.

10. An air purifier, comprising a body (10) and a flow guiding assembly (20), the flow guiding assembly (20) being disposed in the upper part of the body (10) for guiding air to flow from the air inlet (101) of the body (10) to the air outlet (102) of the body (10), characterized in that, The air purifier further includes a humidifying device as described in any one of claims 1 to 9, the humidifying device being disposed in the lower part of the body (10) and located in the air flow path, for humidifying the air.

Images