Air humidifying device

Abstract

The utility model provides an air humidification device which comprises a shell, a draught fan, a humidification net, a solution box and a water supplementing assembly, the shell is provided with an air inlet, an air outlet and an air channel arranged between the air inlet and the air outlet, and the draught fan is arranged in the shell and used for providing driving force for circulation of air in the air channel. At least part of the humidifying net is arranged in the air duct, air in the air duct penetrates through the humidifying net, the solution box is arranged in the shell and used for storing a salt solution, at least the other part of the humidifying net is immersed in the salt solution in the solution box, the water supplementing assembly is arranged in the shell and provided with a liquid storage cavity, and the liquid storage cavity communicates with the solution box; the water tank is used for supplementing water. According to the air humidifying device, the problems that in the prior art, bacteria are likely to appear in a humidifier, and the humidity cannot be stably maintained within the ideal preset range for a long time are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air humidifier related technical field, specifically, an air humidifying device. BACKGROUND

[0002] In the field of home environment improvement, the air humidifying device is an important equipment to improve indoor humidity and living comfort. The humidifiers widely used in the market at present mainly include ultrasonic humidifiers and mistless humidifiers.

[0003] The ultrasonic humidifier atomizes water through high-frequency vibration, thereby releasing water mist into indoor air. However, the humidifying effect of the ultrasonic humidifier is limited to a local area, and in the case of poor water quality, bacteria are easily released during the atomization process, which poses a potential threat to the health of users.

[0004] The mistless humidifier sprays water to a wet membrane or naturally adsorbs it to a humidifying net through a water pump, and completes the heat and mass transfer process through the convection of air to realize the humidification of air by water evaporation. However, the wet membrane and the humidifying net in this type of humidifier are easy to become a breeding ground for bacteria, and long-term use not only reduces indoor air quality, but also increases the cost of consumables, because the wet membrane and the humidifying net usually need to be replaced regularly. More importantly, the mistless humidifier also cannot maintain the humidity in the ideal preset range for a long time, which affects the persistence and accuracy of the humidifying effect.

[0005] As can be seen from the above, the humidifier in the prior art has the problems of easy bacterial growth and inability to maintain the humidity in the ideal preset range for a long time. SUMMARY

[0006] The main purpose of the utility model is to provide an air humidifying device to solve the problems of easy bacterial growth and inability to maintain the humidity in the ideal preset range for a long time in the humidifier in the prior art.

[0007] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an air humidifying device is provided, which comprises a shell, a fan, a humidifying net, a solution tank and a water replenishing assembly. The shell has an air inlet and an air outlet, and a wind channel is arranged between the air inlet and the air outlet. The fan is arranged inside the shell to provide driving force for the circulation of gas inside the wind channel. The humidifying net is at least partially arranged inside the wind channel, and the gas inside the wind channel passes through the humidifying net. The solution tank is arranged inside the shell to store salt solution. At least another part of the humidifying net is immersed in the salt solution inside the solution tank. The water replenishing assembly is arranged inside the shell, and has a liquid storage cavity. The liquid storage cavity is in communication with the solution tank to replenish water to the solution tank.

[0008] Further, the air humidifying device further comprises a demister arranged in the interior of the air duct, the demister is arranged between the humidifying mesh and the air outlet, and the bottom end of the demister is arranged opposite to the top opening of the solution tank.

[0009] Further, the air humidifying device further comprises a filter assembly arranged in the interior of the air duct, the filter assembly comprises a filter mesh and a filter, the filter mesh is arranged between the air inlet and the humidifying mesh, and the filter is arranged between the demister and the air outlet, and the gas flows through the filter mesh, the humidifying mesh, the demister and the filter in sequence.

[0010] Further, the fan is arranged between the filter and the air outlet, and / or the fan is arranged between the air inlet and the filter mesh.

[0011] Further, the demister is a wire mesh demister or a baffle demister, and / or the filter is an air filter of H13 level.

[0012] Further, the humidifying mesh is of a plate structure, the humidifying mesh is fixedly arranged in the interior of the air duct, and the bottom end of the humidifying mesh extends into the salt solution in the interior of the solution tank.

[0013] Further, the humidifying mesh is of a cylindrical structure, the axis of the humidifying mesh is perpendicular to the height direction of the housing and the extension direction of the air duct, the humidifying mesh is rotationally arranged in the interior of the air duct, the air humidifying device further comprises a driving member, the driving member is arranged on the housing, the driving member is drivingly connected with the humidifying mesh, and the bottom end of the humidifying mesh is arranged in the salt solution in the interior of the solution tank.

[0014] Further, the air humidifying device further comprises a humidity sensor and a controller, the humidity sensor is arranged at the air inlet of the housing for humidity detection, and the controller is arranged on the housing, and the controller is signal connected with the humidity sensor and the fan.

[0015] Further, the water supplement assembly comprises a water supplement tank, a balance pipe and a communication pipe, the water supplement tank is arranged at one side of the top of the solution tank, the water supplement tank has a sealed liquid storage cavity, the interior of the liquid storage cavity has an air negative pressure area at the top and a liquid area at the bottom, the first end of the balance pipe is in communication with the air negative pressure area, the second end of the balance pipe extends into the interior of the solution tank, the second end of the balance pipe and the salt solution in the interior of the solution tank form a liquid seal or are arranged in a spaced manner to form a gas flow channel, one end of the communication pipe is in communication with the liquid area, and the other end of the communication pipe is in communication with the solution tank.

[0016] Further, the water supplement assembly further comprises a liquid level sensor and an alarm, the liquid level sensor is arranged on the water supplement tank, the liquid level sensor is used for detecting the water level in the interior of the liquid storage cavity, the alarm is arranged on the housing and / or the water supplement tank, and the liquid level sensor and the alarm are signal connected through the controller of the air humidifying device.

[0017] The technical scheme of the air humidifying device comprises a shell, a fan, a humidifying net, a solution tank and a water supplement assembly, the shell has an air inlet, an air outlet and an air duct arranged between the air inlet and the air outlet, the fan is arranged in the shell and is used for providing driving force for the circulation of gas in the air duct, at least a part of the humidifying net is arranged in the air duct, the gas in the air duct passes through the humidifying net, the solution tank is arranged in the shell and is used for storing salt solution, at least another part of the humidifying net is immersed in the salt solution in the solution tank, and the water supplement assembly is arranged in the shell and has a liquid storage cavity which is communicated with the solution tank and is used for supplementing water to the solution tank.

[0018] As can be seen from the above, the air humidifying device adopts the solution type humidifying technology, a part of the humidifying net is arranged in the air duct to humidify the gas and effectively improve the indoor air humidity, and another part of the humidifying net is immersed in the salt solution to attach the salt solution, so that the air flowing through the humidifying net is humidified and sterilized at the same time, the air is purified, and the health level of the living environment is improved.

[0019] The air humidifying device has simple overall structure, convenient operation and salt solution as consumables, the solution is easy to obtain and has low cost, and the user experience is improved.

[0020] The air humidifying device adopts the water supplement assembly arranged in the shell to supplement water to the solution tank, long-term stable water supplement to the solution tank can be realized, the concentration of the salt solution in the solution tank is relatively stable, and the long-term humidifying capacity is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute any improper limitation to the present application. In the drawings:

[0022] Figure 1 A structure schematic view of the air humidifying device of the present application is shown.

[0023] Among them, the above drawings include the following reference signs:

[0024] 10, filter screen; 20, humidifying net; 30, mist eliminator; 40, filter; 50, fan; 60, water supplement tank; 70, balance pipe; 80, communication pipe; 90, solution tank. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] To address the problems of existing humidifiers being prone to bacterial growth and unable to maintain humidity within the desired preset range for extended periods, this application provides an air humidification device.

[0029] The air humidification device is a solution-type air humidifier.

[0030] like Figure 1 As shown, the air humidifier includes a housing with an air inlet and an air outlet, and an air duct disposed between the air inlet and the air outlet. Air enters the interior of the air duct through the air inlet and flows toward the air outlet to form an airflow inside the air duct.

[0031] The interior of the shell forms an air duct structure, which helps to guide the flow of gas. Figure 1 The arrows in the diagram indicate the direction of gas flow.

[0032] In this embodiment, the air inlet and air outlet of the housing are located on both sides of the length or width of the housing, thereby forming a linearly extending air duct, which helps to improve the sequentiality of gas flow and thus achieve a better air humidification effect.

[0033] like Figure 1 As shown, the housing contains a fan 50, a humidifying screen 20, a solution tank 90, and a water replenishment assembly. The fan 50 is located inside the housing to provide driving force for the flow of gas within the air duct. The humidifying screen 20 is at least partially located inside the air duct, through which the airflow passes. The solution tank 90 is located inside the housing to store a salt solution. At least another part of the humidifying screen 20 is immersed in the salt solution inside the solution tank 90. ​​The water replenishment assembly is located inside the housing and has a liquid storage chamber that communicates with the solution tank 90 for replenishing water to the solution tank 90.

[0034] The solution tank 90 is fixedly installed inside the shell. The solution tank 90 has a solution cavity for storing salt solution and a top opening structure communicating with the solution cavity. The solution tank 90 contains salt solution to ensure the humidity and humidification effect of the humidifying net 20.

[0035] The air humidifying device of the present application adopts solution humidifying technology, a part of the humidifying net 20 humidifies the airflow in the air duct to effectively improve the indoor air humidity, while another part is immersed in the salt solution to adhere to the salt solution, thereby realizing the humidification of the air flowing through the humidifying net 20 while also sterilizing and disinfecting, purifying the air and improving the health level of the living environment.

[0036] The fan 50 is arranged in the air duct, along the direction of the gas flow, the fan 50 can be arranged on the side of the air duct close to the air inlet, or the fan 50 can be arranged on the side of the air duct close to the air outlet, or the fan 50 can be arranged in the area between the air inlet and the humidifying net 20, or the fan 50 can be arranged in the area between the demister 30 and the air outlet; in the present application, the fan 50 is used to form an airflow for the gas flow to realize the flow of the gas in the air duct from the air inlet to the air outlet. The setting position of the fan 50 can be adaptively set, and the fan 50 can be arranged one or more, when multiple fans 50 are arranged, the multiple fans 50 are arranged in the air duct along the direction of the gas flow, the structure of the multiple fans 50 is beneficial to ensure the uniform flow of the gas in the air duct, thereby improving the flow efficiency of the gas.

[0037] In the present embodiment, the humidifying net 20 is arranged in the air duct to contact the salt solution, so that the salt solution adheres to the humidifying net 20, when the airflow flows through the humidifying net 20 with the salt solution adhering thereto, the airflow is sterilized and disinfected by the salt solution, and the airflow is humidified, so as to realize solution humidification and corresponding sterilization and disinfection.

[0038] Preferably, the salt solution solute is preferably sodium chloride or calcium chloride, and the solution concentration is configured to be 15% to 20%.

[0039] Specifically, the humidifying net 20 is preferably made of high molecular material, such as pvc material.

[0040] In the present embodiment, two different embodiments are provided according to the different structures of the humidifying net 20.

[0041] In one specific embodiment, the humidifying net 20 is of a plate structure, the humidifying net 20 is fixed vertically in the air duct, the side wall of the plate structure of the humidifying net 20 is fixedly connected with the inner wall of the air duct of the shell, and the bottom end of the humidifying net 20 is immersed in the salt solution in the solution tank 90.

[0042] The bottom end of the humidifying net 20 is immersed in the salt solution in the solution tank 90, and the salt solution wets the humidifying net 20 along the height direction of the humidifying net 20 by natural adsorption.

[0043] In another specific embodiment, the humidifying net 20 is arranged in the form of a rotating wheel, and the humidifying net 20 is arranged to rotate in the interior of the air duct.

[0044] Specifically, the humidifying net 20 is in a cylindrical structure, and the axis of the humidifying net 20 is perpendicular to the height direction of the shell and the extension direction of the air duct. The bottom end of the humidifying net 20 is arranged in the salt solution in the interior of the solution tank 90, and the humidifying net 20 is arranged to rotate to be partially immersed in the salt solution, to humidify and purify the sterilized gas. The arrangement of the rotating humidifying net 20 achieves a periodic immersion, which is beneficial to improve the humidifying and sterilizing effect.

[0045] In the embodiment, the air humidifying device further comprises a driving member fixedly arranged on the shell, and the driving member is drivingly connected with the humidifying net 20. The driving member is an electric motor, which rotates to drive the humidifying net 20 to rotate.

[0046] As shown in Figure 1 , the air humidifying device further comprises a demister 30 arranged in the interior of the air duct. The demister 30 is arranged on the shell and located between the humidifying net 20 and the air outlet. The bottom end of the demister 30 is arranged opposite to the top opening of the solution tank 90.

[0047] The demister 30 is a wire mesh demister 30 or a baffle demister 30, which is used to achieve a demisting operation to ensure the purity of the air.

[0048] In the embodiment, after the airflow passes through the humidifying net 20, salt mist is generated in the gas. The salt mist flows into the interior of the demister 30 for demisting treatment. Specifically, after the airflow and the salt mist enter the interior of the demister 30, the salt mist collides with the core net in the interior of the demister 30, slowly condenses into water droplets, and drips towards the top opening of the accommodating tank and into the interior of the solution tank 90.

[0049] As shown in Figure 1 , the air humidifying device further comprises a filter assembly arranged in the interior of the air duct. The filter assembly comprises a filter screen 10 and a filter 40. The filter screen 10 is used to achieve a preliminary filtration of the airflow. The outer peripheral side of the filter screen 10 is fixedly connected with the inner wall surface of the shell, so that the filter screen 10 is arranged to stand in the interior of the air duct, to ensure that the gas flows through the filter screen 10. The filter 40 is used to perform a secondary filtration of the airflow. The filter 40 is fixedly connected with the shell. The filter assembly can achieve a double filtration of the airflow, to remove large-particle impurities and bacteria in the gas, and further purify the air.

[0050] The filter 40 is an air filter 40 of H13 level.

[0051] Specifically, the filter screen 10 is arranged between the air inlet and the humidifying screen 20, and the filter 40 is arranged between the demister 30 and the air outlet, the filter screen 10 is used to intercept large-particle solids in the airflow entering the air inlet, such as lint and the like, and the filter 40 can be used to intercept fine solid particles in the air to further purify the air.

[0052] In this embodiment, the gas in the air duct flows through the filter screen 10, the humidifying screen 20, the demister 30, and the filter 40 in sequence. The filter screen 10 is used for primary filtration, the humidifying screen 20 is used for humidifying and sterilizing the gas, the demister 30 is used for purifying the gas, and the filter 40 is used for secondary filtration of the gas, thereby realizing the structure of humidifying and purifying and sterilizing the air.

[0053] The air humidifying device of the present application has simple overall structure, convenient operation, and consumables of salt solution, which is easy to obtain and has low cost, thereby improving the user experience.

[0054] As shown in Figure 1 The water replenishing assembly includes a water replenishing tank 60, a balance pipe 70, and a communication pipe 80. The water replenishing tank 60 is arranged on one side of the top of the solution tank 90. The water replenishing tank 60 has a sealed liquid storage cavity. The liquid storage cavity has an air negative pressure area at the top and a liquid area at the bottom. The liquid storage cavity is used to contain water. The first end of the balance pipe 70 communicates with the air negative pressure area. The second end of the balance pipe 70 extends into the inside of the solution tank 90. The second end of the balance pipe 70 forms a liquid seal with the salt solution in the solution tank 90 or is arranged to form a gas flow channel with the salt solution in the solution tank 90. One end of the communication pipe 80 communicates with the liquid area. The other end of the communication pipe 80 communicates with the solution tank 90.

[0055] The air humidifying device of the present application uses the water replenishing assembly arranged in the inside of the shell to replenish water to the solution tank 90, which can realize long-term stable water replenishment to the inside of the solution tank 90, so as to ensure that the concentration of the salt solution in the inside of the solution tank 90 is relatively stable and the humidifying capacity is persistent.

[0056] The balance pipe 70 is a gas pressure balance pipe 70, and the communication pipe 80 is a liquid communication pipe 80.

[0057] In this embodiment, in the original state, one end of the balance pipe 70 communicates with the air negative pressure area, and the other end of the balance pipe 70 extends into the inside of the salt solution to realize liquid sealing, so as to keep the air negative pressure area in the inside of the water replenishing tank 60 unchanged.

[0058] In use, as the humidification net 20 humidifies the gas, the salt solution in the solution tank 90 is consumed, and the liquid level of the solution tank 90 drops. When the liquid level drops to the position spaced from the other end of the balance pipe 70, i.e., the contact liquid seal, the air negative pressure area is connected with the outside, and the gas in the outside enters the air negative pressure area through the balance pipe 70 under the action of the negative pressure. The gas squeezes the water at the bottom of the water supply tank 60 to enter the inside of the solution tank 90 for water supply. When the salt solution again seals the balance pipe 70, the gas cannot enter the inside of the water supply tank 60 through the balance pipe 70, and the water supply operation is stopped.

[0059] It should be noted that the water supply tank 60 is used to supply water to the inside of the solution tank 90. In the process of use of the humidification net 20, the humidification of the gas causes the water to be consumed. The inside of the solution tank 90 is watered to keep the liquid level stable, thereby ensuring the stability of the concentration of the salt solution.

[0060] In the embodiment, the water supply assembly of the application and the solution tank 90 have a pressure difference type water supply mode. The water supply is automatic, no additional components are needed, and the structure is simple. The liquid level in the inside of the solution tank 90 is kept stable, thereby ensuring the stability of the concentration of the salt solution, thereby ensuring the consistency of the humidification effect and the sterilization ability, avoiding the trouble of frequent adjustment and supplement of the solution, and greatly improving the user experience and the practicality of the device.

[0061] In the embodiment, the water supply assembly further includes a liquid level sensor and an alarm. The liquid level sensor is arranged on the water supply tank 60 and is used to detect the liquid level in the inside of the liquid storage cavity. The alarm is arranged on the housing and / or the water supply tank 60. The liquid level sensor and the alarm are signal connected through the controller of the air humidification device.

[0062] The liquid level sensor is used to detect the liquid level in the inside of the water supply tank 60, so that the alarm can alarm when the liquid level is too low to remind the liquid addition.

[0063] In the embodiment, the air humidification device further includes a humidity sensor and a controller. The humidity sensor is arranged at the air inlet of the housing and is used for humidity detection. The controller is arranged on the housing. The controller is signal connected with the humidity sensor and the fan 50. The controller can also be signal connected with the liquid level sensor and the alarm.

[0064] Specifically, the humidity sensor is used to detect the humidity of the gas at the air inlet. When the humidity meets the preset humidity, the controller controls the fan 50 not to start, and the air humidification device does not start at this time. When the humidity is lower than the preset humidity, the controller controls the fan 50 to start, and the humidification, purification and sterilization operation on the gas is realized.

[0065] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0066] The air humidifying device of the application adopts solution humidifying technology, a part of the humidifying net 20 is inside the air duct to humidify the airflow, effectively improving the indoor air humidity, while the other part is immersed in the salt solution to attach the salt solution, thereby realizing the humidification of the air flowing through the humidifying net 20 while also sterilizing and disinfecting, purifying the air and improving the health level of the living environment.

[0067] The air humidifying device of the application has simple overall structure, convenient operation and consumables of salt solution, solution acquisition and low cost, which is beneficial to improve the user experience.

[0068] The air humidifying device of the application adopts the water replenishing assembly arranged inside the shell to replenish water to the solution tank 90, which can realize long-term stable water replenishing to the inside of the solution tank 90, so as to ensure that the concentration of the salt solution in the inside of the solution tank 90 is relatively stable and the humidifying capacity is persistent.

[0069] The pressure difference type water replenishing mode between the water replenishing assembly and the solution tank 90 ensures the stability of the salt solution concentration, thereby ensuring the consistency of the humidifying effect and the sterilizing capacity, avoiding the trouble of frequent adjustment and replenishment of the solution, and greatly improving the user experience and the practicability of the device.

[0070] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0071] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or their combination.

[0072] It should be noted that the terms "first", "second" and the like in the specification and claims of the application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0073] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air humidifying device, characterized in that, The air humidifying device comprises: a shell having an air inlet and an air outlet and an air duct arranged between the air inlet and the air outlet; a fan (50) arranged in the interior of the shell for providing driving force for the flow of gas in the interior of the air duct; a humidifying net (20) arranged at least partially in the interior of the air duct, the gas in the interior of the air duct passing through the humidifying net (20); a solution tank (90) arranged in the interior of the shell for storing salt solution, at least another part of the humidifying net (20) being immersed in the salt solution in the interior of the solution tank (90); a water replenishing assembly arranged in the interior of the shell, the water replenishing assembly having a liquid storage cavity in communication with the solution tank (90) for replenishing water to the solution tank (90).

2. The air humidifying device according to claim 1, characterized in that The air humidifying device further comprises a demister (30) arranged in the interior of the air duct, the demister (30) being arranged between the humidifying net (20) and the air outlet, the bottom end of the demister (30) being arranged opposite to the top opening of the solution tank (90).

3. The air humidifying device of claim 2, wherein, The air humidifying device further comprises a filtering assembly arranged in the interior of the air duct, the filtering assembly comprising: a filtering net (10) arranged between the air inlet and the humidifying net (20); a filter (40) arranged between the demister (30) and the air outlet, the gas sequentially flowing through the filtering net (10), the humidifying net (20), the demister (30) and the filter (40).

4. The air humidifying device according to claim 3, wherein: the fan (50) is arranged between the filter (40) and the air outlet; and / or the fan (50) is arranged between the air inlet and the filtering net (10).

5. The air humidifying device according to claim 3, wherein: the demister (30) is a wire mesh demister (30) or a baffle demister (30); and / or the filter (40) is an air filter (40) of H13 level.

6. The air humidifying apparatus of claim 1, wherein, The humidifying net (20) is of a plate structure, the humidifying net (20) being fixedly arranged in the interior of the air duct, the bottom end of the humidifying net (20) being immersed in the salt solution in the interior of the solution tank (90).

7. The air humidifying apparatus of claim 1, wherein, The humidifying net (20) is of a cylindrical structure, the axis of the humidifying net (20) being perpendicular to the height direction of the shell and the extension direction of the air duct, the bottom end of the humidifying net (20) being arranged in the salt solution in the interior of the solution tank (90), the humidifying net (20) being rotatably arranged in the interior of the air duct, the air humidifying device further comprising a driving member arranged on the shell, the driving member being drivingly connected with the humidifying net (20).

8. The air humidifying apparatus of claim 1, wherein, The air humidifying device further comprises: a humidity sensor arranged at the air inlet of the shell for humidity detection; a controller arranged on the shell, the controller being signal connected with the humidity sensor and the fan (50).

9. The air humidifying device according to any one of claims 1 to 8, characterized in that, The water replenishing assembly comprises: A water supplement tank (60) is arranged on one side of the top of the solution tank (90), and the water supplement tank (60) has a sealed liquid storage cavity, and the inside of the liquid storage cavity has an air negative pressure area at the top and a liquid area at the bottom; A balance pipe (70) has a first end in communication with the air negative pressure area, a second end extending into the inside of the solution tank (90), and forms a liquid seal with the salt solution in the inside of the solution tank (90) or is arranged in a spaced manner to form a gas flow channel with the salt solution in the inside of the solution tank (90); A communication pipe (80) has one end in communication with the liquid area and the other end in communication with the solution tank (90).

10. The air humidifying device according to claim 9, characterized in that The water supplement assembly further comprises: A liquid level sensor arranged on the water supplement tank (60) and used for detecting the water level in the inside of the liquid storage cavity; An alarm arranged on the housing and / or the water supplement tank (60), and the liquid level sensor and the alarm are signal connected through the controller of the air humidifying device.

Images