Car humidifier

Abstract

This application provides a vehicle-mounted humidifier. The humidifier includes a housing, a filter element, a fan, and a water supply assembly. One end of the housing has a tray with an opening facing a receiving cavity inside the housing for holding liquid. The other end of the housing has an air outlet. The filter element has a capillary structure, with one end located within the receiving cavity, for absorbing liquid and being wetted by the capillary action. An air inlet is located on the side wall of the housing near the tray. The fan connects the filter element and the air outlet. Under the action of the fan, external air flows into the wetted filter element through the air inlet, forming humidified gas, which is then blown out through the air outlet after passing through the fan. The water outlet of the water supply assembly is connected to the receiving cavity to supply water to the cavity. In the vehicle-mounted humidifier provided in this application embodiment, the humidification output is stable, thereby steadily increasing the humidity inside the vehicle and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted equipment technology, and more particularly to a vehicle-mounted humidifier. Background Technology

[0002] With the improvement of people's living standards, cars have become an essential means of transportation for every family. In winter, the car's heating system leads to dry air inside the vehicle, increasing the demand for car humidifiers. Currently, car humidifiers on the market include ultrasonic plate humidifiers. These humidifiers use a mist-forming plate that vibrates at ultrasonic frequencies to atomize water into fine mist, which is then blown out of the humidifier.

[0003] However, the humidification output of this type of humidifier is unstable. For example, the humidification output gradually decreases as water is consumed, and there is a phenomenon of no mist when too much water is added. Utility Model Content

[0004] This application provides a vehicle humidifier that provides stable humidification, effectively increasing the humidity inside the vehicle and improving the user experience.

[0005] This application provides a vehicle-mounted humidifier, including:

[0006] The housing has a tray at one end, the tray having an opening facing the receiving cavity inside the housing for holding liquid, and an air outlet at the other end of the housing.

[0007] The filter element has a capillary structure, and one end of the filter element is located in the receiving cavity. It is used to absorb liquid and be wetted by the capillary structure. The housing has an air inlet on the side wall near the tray.

[0008] The fan connects the filter element and the air outlet. Under the action of the fan, the outside air flows into the wetted filter element through the air inlet to form humid gas. The humid gas is blown out through the air outlet after passing through the fan.

[0009] The water supply component has its outlet connected to the receiving cavity to supply water into the receiving cavity.

[0010] In one feasible implementation, the filter element is constructed as a sheet-like structure that is alternately folded in both directions and arranged along a circumferential direction.

[0011] In one feasible implementation, the water supply components include:

[0012] A water tank is used to hold liquids;

[0013] A water pump is connected to both the water tank and the outlet to transfer the liquid in the water tank to the receiving cavity through the outlet.

[0014] The water inlet is connected between the receiving cavity and the water outlet;

[0015] The return flow element connects the receiving cavity and the water tank, and is used to return the liquid in the receiving cavity to the water tank, so that the liquid level in the receiving cavity is within a preset height range.

[0016] In one feasible implementation, when the filter element is formed by alternating folds of a sheet-like structure along a ring direction, a partition plate is provided on the bottom wall of the receiving cavity. The partition plate divides the receiving cavity into a circular cavity and an annular cavity, with the annular cavity located on the periphery of the circular cavity.

[0017] One end of the filter element abuts against the bottom wall of the annular cavity, and the outer wall of the circular cavity abuts against the inner wall of the filter element; the water inlet is connected between the circular cavity and the water outlet; the return flow element is connected between the annular cavity and the water tank.

[0018] In one feasible implementation, the water tank is configured as an open tank body, with the open end of the water tank connected to the side of the tray facing away from the receiving cavity.

[0019] The water inlet is constructed as a water inlet hole that penetrates the bottom wall of the circular cavity;

[0020] The reflux component is constructed as a reflux hole, which penetrates the bottom wall of the annular cavity.

[0021] In one feasible implementation method

[0022] The tray is provided with a connecting part, which is formed by the bottom wall edge of the receiving cavity extending to the side opposite to the receiving cavity; the connecting part is sleeved with the opening end of the water tank, and a first sealing ring is provided between the connecting part and the opening end of the water tank.

[0023] In one feasible implementation, the vehicle humidifier also includes an air duct structure that connects the fan and the filter.

[0024] In one feasible implementation, the air duct structure has an extension and a folding section, and the space enclosed by the extension and the folding section is used to install the control panel of the vehicle humidifier.

[0025] The extension is formed by one end of the air duct structure extending outward along the circumference of the air duct structure, and the folded section is formed by the end of the extension being folded towards the other end of the air duct structure in the axial direction, and the outer wall of the folded section along the extension direction abuts against the inner wall of the shell.

[0026] When the filter element is constructed as a sheet-like structure that is alternately folded in the front and back and arranged in a ring direction, the extension extends outward along the axial direction of the air duct structure from the edge away from the folded section to form a sealing part. One end of the filter element is fitted onto the sealing part and the end face of the filter element abuts against the extension.

[0027] In one feasible implementation, a second sealing ring is provided between the folding section and the outer shell; the air duct structure is aligned and connected to the fan along the axial direction of the air duct structure, and a third sealing ring is provided at the connection between the air duct structure and the fan; the shell includes a top cover and a side plate connected to the edge of the top cover; the air outlet is provided on the top cover, and the air outlet is aligned and connected to the fan; a fourth sealing ring is provided at the connection between the air outlet and the fan.

[0028] In one feasible implementation, the vehicle-mounted humidifier includes a water level detector for detecting the liquid level in the water tank; when the liquid level is lower than the target level, the water level detector outputs a detection signal, which is used by the control center to issue a prompt message; and / or the detection signal is used by the control center to control the water pump to stop supplying water to the receiving chamber; wherein the prompt message is used to prompt the user to add liquid to the water tank.

[0029] The vehicle humidifier provided in this application embodiment uses a filter element with a capillary structure. After being immersed in liquid, the filter element automatically absorbs water and is moistened through the capillary structure, maintaining a constantly moist state. An air outlet and an air inlet are provided on the housing to allow air to circulate between the inside and outside of the vehicle humidifier. Under the action of the fan, outside air flows in through the air inlet, passes through the moistened filter element, and is humidified, forming humidified gas, which is then blown out through the air outlet after passing through the fan. Compared to ultrasonic vibrating plates that atomize water into fine mist through high-frequency vibration, this method, through the capillary structure of the filter element, keeps the filter element constantly moist, ensuring consistent humidification of the humidified gas. This solves the problem of humidification fluctuations caused by water level changes, improves the stability of the humidification effect, and enhances the user experience of the vehicle humidifier. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the vehicle-mounted humidifier provided in the embodiments of this application;

[0031] Figure 2 This is a cross-sectional structural diagram of the vehicle-mounted humidifier provided in the embodiments of this application;

[0032] Figure 3 This is a schematic diagram of liquid circulation in a vehicle-mounted humidifier provided in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of gas circulation in a vehicle-mounted humidifier provided in an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the housing in the vehicle-mounted humidifier provided in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the structure of a filter element in a vehicle humidifier provided in an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of a tray in a vehicle-mounted humidifier provided in an embodiment of this application;

[0037] Figure 8 yes Figure 7 The diagram shows the structure of the tray from another angle;

[0038] Figure 9 This is a schematic diagram of the air duct structure in a vehicle-mounted humidifier provided in an embodiment of this application;

[0039] Figure 10 yes Figure 9 The diagram shows the structure of the air duct from another angle.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100-Car humidifier; 10-Housing; 20-Filter; 30-Fan; 40-Water supply assembly; 50-Tray; 60-Air duct structure;

[0042] 21-Fixing ring; 51-Receiving cavity; 101-Air inlet; 102-Air outlet; 401-Water outlet, water outlet end; 41-Water tank; 42-Water pump; 501-Base plate; 502-Upright plate; 61-Extension; 62-Folding section; 63-Sealing part; 611-Second sealing ring; 603-Third sealing ring; 604-Fourth sealing ring; 10a-Top cover; 10b-Side plate; 105-Fifth sealing ring; 421-Water inlet end; 411-Open end; 52-Connecting part; 53-Extension section; 43-First sealing ring; 54-Water inlet hole; 55-Return hole; 56-Divider plate; 50a-Circular cavity; 50b-Annular cavity; h-Liquid height. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in 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 embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0044] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0045] In the description of this application, it should be understood that the terms "first direction", "second direction", etc., indicating the orientation or positional relationship are understood based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Those skilled in the art will better understand the technical solutions in this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0047] With the improvement of people's living standards, cars have become an essential means of transportation for every family. In winter, the car's heating system leads to dry air inside the vehicle, increasing the demand for car humidifiers. Currently, car humidifiers on the market include ultrasonic plate humidifiers.

[0048] In ultrasonic plate humidifiers, the ultrasonic vibrating plate is the core component, which atomizes water into fine mist through high-frequency vibration. However, its humidification effect is affected by the water level. On the one hand, as water is consumed, the water depth covering the ultrasonic vibrating plate gradually decreases, resulting in less water available for the vibrating plate to work with, thus reducing the amount of water mist produced and failing to maintain the humidification level, affecting the humidification effect on the air inside the car. On the other hand, if the water level exceeds the maximum mist-forming water level of the ultrasonic vibrating plate, the water level is too far from the vibrating plate, and the ultrasonic energy attenuates significantly when propagating in the water, failing to break up water molecules into mist. In addition, an excessively high water level may cause the vibrating plate to be submerged, affecting its vibration effect and further exacerbating the problem of no mist, thereby affecting the humidification effect on the air inside the car.

[0049] In view of the above problems, this application provides a car humidifier. By introducing a filter element with a capillary structure, the filter element can automatically absorb water and be moistened through capillary action, keeping the filter element always moist. In this way, under the action of the fan, external air flows into the moistened filter element through the air inlet to form humid gas. The humid gas is blown out of the car humidifier through the air outlet after passing through the fan. Compared with the technical solution of ultrasonic vibrating plates that use high-frequency vibration to break water into fine water mist, this method can ensure that the filter element is always moistened after the external air enters, ensuring a stable output of humid gas, solving the problem of humidification fluctuation caused by water level changes, improving the stability of humidification effect, and thus improving the user experience of the car humidifier.

[0050] Figure 1 This is a schematic diagram of the overall structure of the vehicle-mounted humidifier provided in the embodiments of this application; Figure 2 This is a cross-sectional structural diagram of the vehicle-mounted humidifier provided in the embodiments of this application; Figure 3 This is a schematic diagram of liquid circulation in a vehicle-mounted humidifier provided in an embodiment of this application; Figure 4 This is a schematic diagram of gas circulation in a vehicle-mounted humidifier provided in an embodiment of this application. For example... Figures 1 to 4 As shown in the embodiments of this application, the vehicle humidifier 100 includes a housing 10, a filter element 20 with a capillary structure, a fan 30, and a water supply assembly 40.

[0051] The housing 10 has a tray 50 at one end, with an opening facing the receiving cavity 51 inside the housing 10. The receiving cavity 51 is used to hold liquid. The other end of the housing 10 has an air outlet 102. One end of the filter element 20 is located inside the receiving cavity 51, used to absorb liquid and be wetted by capillary action. The housing 10 has an air inlet 101 on its side wall near the tray 50. A fan 30 connects the filter element 20 and the air outlet 102. Under the action of the fan 30, outside air flows into the wetted filter element 20 through the air inlet 101 to form humid gas, which is then blown out through the air outlet 102 after passing through the fan 30. The water outlet 401 of the water supply assembly 40 is connected to the receiving cavity 51 to supply water into the receiving cavity 51.

[0052] Figure 5 This is a schematic diagram of the structure of the housing 10 in the vehicle humidifier 100 provided in this application embodiment. In some embodiments, the housing 10 can be a shaft-like housing 10 as a whole, with a tray 50 disposed at one end of the housing 10 along its axial direction, an air outlet 102 disposed at the other end of the housing 10 along its axial direction, and an air inlet 101 disposed on the side wall of the housing 10 near the tray 50. In this case, after the filter element 20 absorbs liquid, it becomes wetted under the action of capillary action, forming an airflow path when the fan 30 is in operation (see...). Figure 4As indicated by the arrow: After the outside air enters the vehicle humidifier 100 through the air inlet 101, it passes through the wetted filter element 20 to form humidified gas. After passing through the fan 30, the humidified gas flows out of the vehicle humidifier 100 from the air outlet 102.

[0053] In some embodiments, the housing 10 can be a shaft-like housing 10, with the tray 50 located at one end of the housing 10 along its axial direction. The housing 10 has two opposing sides along its radial direction, with the air inlet 101 located on one side of the housing 10 along its radial direction and the air outlet 102 located on the other side of the housing 10 along its radial direction. The filter element 20 is partially located within the receiving cavity 51 and partially located between the air outlet 102 and the air inlet 101. At this time, after absorbing liquid, the filter element 20 is wetted by capillary action. When the fan 30 is in operation, the airflow path is as follows: external air enters the vehicle humidifier 100 through the air inlet 101, passes through the wetted filter element 20 to form humidified gas, and the humidified gas flows out of the vehicle humidifier 100 from the air outlet 102 after passing through the fan 30.

[0054] In other embodiments, the housing 10 can be a square housing 10 with a first end and a second end disposed opposite to each other. The tray 50 is disposed at the first end of the housing 10, the air outlet 102 is disposed at the second end of the housing 10, and the air inlet 101 is disposed on the side wall of the housing 10 near the tray 50. In this case, after the filter element 20 absorbs liquid, it is wetted by the capillary action. When the fan 30 is in working state, the air flow path is as follows: external air enters the vehicle humidifier 100 through the air inlet 101, passes through the wetted filter element 20 to form humidified gas, and the humidified gas flows out of the vehicle humidifier 100 from the air outlet 102 after passing through the fan 30.

[0055] In some embodiments, the liquid may be water, or may be replaced with other liquids as needed. This application does not limit the type of liquid.

[0056] In some embodiments, the filter element 20 can be a fiber bundle structure, a porous ceramic structure, a sponge, or a porous foam structure. This application does not limit the type of filter element 20, as long as it can achieve the effect of being wetted by capillary action when absorbing water in a certain area.

[0057] In some embodiments, the fan can be configured as a centrifugal fan, with the air inlet located axially and the air outlet located circumferentially. To ensure that humidified gas is blown out from the air outlet 102 of the housing 10 after passing through the centrifugal fan, the air outlet 102 of the housing 10 is positioned corresponding to the circumferential region of the centrifugal fan, so that the air outlet of the centrifugal fan is connected to the air outlet 102 of the housing 10, thereby blowing the humidified gas out of the vehicle humidifier 100.

[0058] In some embodiments, the fan 30 can be configured as an axial flow fan 30, with the air inlet and outlet positions of the axial flow fan 30 located at opposite ends along its axial direction. To ensure that humidified gas is blown out of the outlet 102 of the housing 10 after passing through the axial flow fan 30, the outlet 102 of the housing 10 is configured to correspond to the outlet position of the axial flow fan 30, thereby achieving communication between the outlet position of the axial flow fan 30 and the outlet 102 of the housing 10. This allows humidified gas to be blown out of the vehicle humidifier 100 through the outlet position and outlet 102 of the axial flow fan 30.

[0059] In some embodiments, the air inlet 101 may be constructed as a plurality of through holes or other through structures distributed on the housing 10. This application does not limit the shape and number of the air inlet 101.

[0060] In some embodiments, the air outlet 102 may be configured as an air outlet hole or an annular hole combined with a blade. This application does not limit the shape and number of air outlets 102.

[0061] In some examples, the structure of the annular hole and the blade can be achieved by drilling a hole in the housing 10 to form an annular hole, and connecting ribs connecting the opposite two walls of the annular hole. Thus, the opposite two walls of the annular hole and the connecting ribs together form the air outlet 102.

[0062] The above solution employs a filter element 20 with a capillary structure. When partially immersed in liquid, the filter element 20 automatically absorbs water and is moistened through its capillary structure, maintaining a consistently moist state. The housing 10 has an air outlet 102 and an air inlet 101 to facilitate air circulation between the inside and outside of the vehicle humidifier 100. Under the action of the fan 30, external air flows in through the air inlet 101, passes through the moistened filter element 20, and is humidified, forming moist gas. This humidified gas is then blown out through the air outlet 102 after passing through the fan 30. Compared to ultrasonic vibrating plates that atomize water into fine mist through high-frequency vibration, this solution utilizes the capillary structure of the filter element 20 to maintain a consistently moist state, ensuring uniform humidification of the gas. This resolves the issue of humidification fluctuations caused by water level changes, improves the stability of the humidification effect, and enhances the user experience of the vehicle humidifier 100.

[0063] To improve the water absorption efficiency and uniformity of the filter element 20, in some embodiments, the filter element 20 is constructed by stacking multiple layers. This stacked structure allows for uniform water absorption through capillary action, ensuring consistent wetting across all parts of the filter element 20. Furthermore, the stacked structure makes the filter element 20 more stable and less prone to deformation, thereby extending its service life.

[0064] In some examples, the distance between each pair of adjacent layers in the filter element 20 is consistent, which enables the filter element 20 to absorb water evenly through capillary structure, improving the accuracy of the same degree of wetting in each part.

[0065] In some examples, the distance between each two adjacent layers in the filter element 20 is small, which enhances the capillary effect of the filter element 20, improves water absorption efficiency, and reduces the response time when the car humidifier 100 is working.

[0066] In some embodiments, the filter element 20 is constructed by stacking along a straight line. In this case, one end of the filter element 20 along its stacking direction is located in the receiving cavity 51. After this end of the filter element 20 absorbs water, the liquid can flow to the other end under the action of capillary structure, thereby wetting the filter element 20. Accordingly, gas passes through the wetted filter element 20 to form humid gas.

[0067] In some examples, the extended dimension of the capillary structure is less than or equal to 100 mm. When the extended dimension of the capillary structure is greater than 100 mm, the excessive length of the capillary structure may affect the efficiency of wetting the filter element 20 under capillary action. The extension direction of the capillary structure refers to the direction of this straight line.

[0068] Figure 6 This is a schematic diagram of the filter element 20 in the vehicle humidifier 100 provided in this application embodiment. To enhance humidification efficiency, in some embodiments, the filter element 20 is constructed as a sheet-like structure that is alternately folded in both directions and arranged along a ring direction to form a cylindrical structure, through which gas passes. This design increases the surface area of ​​the filter element 20, and correspondingly, the area of ​​the pores through which gas passes is increased, reducing the wind resistance of gas flow and improving the humidification efficiency of the gas, thereby improving the humidification efficiency of the vehicle humidifier 100 for the vehicle interior environment. In addition, the ring structure allows gas to pass through the filter element 20 evenly, ensuring a stable output of humidified gas.

[0069] The filter element 20 is formed as follows: a sheet-like structure is laid flat and folded alternately in both directions to form a wavy structure similar to a folding fan (if this wavy structure is unfolded, the fold lines are distributed parallel to each other on the raw material); then, multiple fold lines on the wavy structure are arranged in a circular direction to enclose and form the filter element 20 (the straight line containing the fold lines on the filter element 20 is parallel to the generatrix of the filter element 20). Here, after the filter element 20 absorbs liquid, the liquid flows from the inner wall to the outer wall of the cylindrical structure through capillary action, thereby wetting the filter element 20.

[0070] In some embodiments, the filter element 20 may be configured to be made of spunlace cotton nonwoven fabric, fibers, or stacked nonwoven fabrics. This application embodiment does not limit the material used to make the filter element 20.

[0071] In some examples, the filter element 20 can be configured as a spunlace cotton nonwoven fabric filter element 20 to achieve uniform water absorption through capillary action, preventing localized over-wetting or dryness and ensuring stable humidification. Furthermore, the spunlace cotton nonwoven fabric filter element 20 primarily achieves humidification through the diffusion of moist gas, thus achieving mist-free humidification and improving the applicability of the vehicle humidifier 100 to in-vehicle environments.

[0072] In some embodiments, the filter element 20 is provided with fixing rings 21 at opposite ends. The two fixing rings 21 are respectively connected to opposite ends in the axial direction of the filter element 20, thereby improving the structural stability of the filter element 20 and extending the service life of the filter element 20.

[0073] In order to keep the filter element 20 always wet, in some embodiments, the water supply component 40 can be configured as a rotary centrifugal water supply, a water pump or other water supply structure. The embodiments of this application do not limit the implementation of the water supply component 40.

[0074] In some examples, the water supply assembly 40 is configured as a rotary centrifugal water supply assembly 40, which uses centrifugal force to throw water out of the water tank 41 and then delivers it to the receiving cavity 51 through a guide structure. The rotating device can be driven by a motor.

[0075] Continue reading Figure 2 In some embodiments, the water supply assembly 40 includes a water tank 41 and a water pump 42. The water tank 41 is used to hold liquid. The water pump 42 is connected to both the water tank 41 and the outlet 401 to supply the liquid in the water tank 41 to the receiving cavity 51 through the outlet 401.

[0076] In some embodiments, the water tank 41 can be configured as a closed box with an outlet 401. The inlet 421 of the water pump 42 is connected to the water tank 41, and the outlet 401 of the water pump 42 is connected to the outlet 401. In this way, under the action of the water pump 42, the liquid in the water tank 41 flows into the water pump 42 through the inlet 421, flows into the outlet 401 through the outlet 401, and finally flows into the receiving cavity 51 for the filter element 20 to absorb water.

[0077] In some embodiments, the water tank 41 can be configured as an open tank, with the open end 411 of the water tank 41 connected to the end of the tray 50 facing away from the receiving cavity 51, thereby obtaining a sealed water tank 41 to prevent liquid from overflowing from the water tank 41 and causing a short circuit in the vehicle's electrical circuit.

[0078] In some embodiments, the bottom wall of the receiving cavity 51 extends to the side opposite to the receiving cavity 51 to form a connecting part 52. After the connecting part 52 is engaged with the opening of the water tank 41, it is connected by fasteners, so that the opening end 411 of the water tank 41 is connected to the end of the tray 50 opposite to the receiving cavity 51.

[0079] In some examples, the open end 411 of the water tank 41 is fitted onto the connecting part 52, and the fastener passes through the side wall of the open end 411 of the water tank 41 and extends into the connecting part 52, thereby connecting the water tank 41 and the connecting part 52.

[0080] In some examples, the connecting part 52 is fitted onto the open end 411 of the water tank 41, and the fastener passes through the connecting part 52 and extends into the side wall of the open end 411 of the water tank 41, thereby connecting the water tank 41 with the connecting part 52.

[0081] In some embodiments, when the water tank 41 is a cylindrical water tank 41, the open end 411 of the water tank 41 is located at one end of the water tank 41 in the axial direction. In this case, the tray 50 extends outward from the bottom wall edge of the receiving cavity to form a connecting part 52, and the connecting part 52 is screwed and fixed to the open end 411 of the water tank 41.

[0082] In some examples, the outer wall of the connecting part 52 is provided with external threads, and the inner wall of the opening end 411 of the water tank 41 is provided with internal threads. The connecting part 52 and the opening end 411 of the water tank 41 are threadedly connected by the cooperation of the external threads and the internal threads.

[0083] In some examples, the outer wall of the connecting part 52 is provided with a groove, and the inner wall of the opening end 411 of the water tank 41 is provided with a protrusion. The connecting part 52 is connected to the opening end 411 of the water tank 41 by the protrusion fitting into the groove. The connecting part 52 and the opening end 411 of the water tank 41 can also be connected by a snap-fit ​​structure, which will not be described in detail here.

[0084] In some embodiments, the water pump 42 can be located inside the water tank 41, thereby reducing the connection structure between the water pump 42 inlet 421 and the water tank 41, making the structure of the vehicle humidifier 100 simpler and thus reducing manufacturing costs.

[0085] To improve the sealing performance of the water tank 41, in some embodiments, the water supply assembly 40 further includes a first sealing ring 43. The first sealing ring 43 is disposed between the connecting part 52 and the inner wall of the opening end 411 of the water tank 41, thereby isolating the water tank 41 from the outside of the vehicle humidifier 100, so as to prevent the liquid in the water tank 41 from flowing out of the vehicle humidifier 100 from the gap between the connecting part 52 and the inner wall of the opening end 411 of the water tank 41, thereby preventing the liquid from overflowing from the water tank 41 and causing short circuits or malfunctions in the vehicle's electrical circuit.

[0086] To improve the air intake efficiency of the vehicle humidifier 100 while simultaneously wetting the filter element 20, in some embodiments, the water supply assembly 40 further includes a water inlet and a return flow component. The water inlet connects the receiving cavity 51 and the outlet 401. Under the action of the water pump 42, liquid in the water tank 41 flows into the receiving cavity 51 through the outlet 401 and the water inlet (see...). Figure 3 (The liquid circulation path is indicated by the middle arrow).

[0087] The return flow element is connected between the receiving cavity 51 and the water tank 41 so that the liquid in the receiving cavity 51 flows back into the water tank 41, and the liquid height h in the receiving cavity 51 is within a preset height range.

[0088] Figure 7 This is a schematic diagram of the structure of the tray 50 in the vehicle humidifier 100 provided in this application embodiment; Figure 8 yes Figure 7 The diagram shows the structure of tray 50 from another angle. Figure 7 and Figure 8 As shown, the receiving cavity 51 is formed by a base plate 501 and a vertical plate 502 extending along the edge of the base plate 501. The channels for gas exchange between the housing 10 and the outside are the air outlet 102 and the air inlet 101; the rest of the housing 10 should be sealed. The vertical plate 502 is tightly fitted to the side wall of the housing 10, thus partially obstructing the side wall where the air inlet 101 is located. To maximize the efficiency of gas entering the vehicle humidifier 100 and ensure that the filter element 20 is wetted, a return flow element is introduced to return the liquid in the receiving cavity 51 back to the water tank 41, keeping the liquid level h in the receiving cavity 51 within a preset height range. Furthermore, this return flow element design eliminates the need for an additional control unit to control the start and stop of the water pump 42; the return flow element alone is sufficient to ensure the liquid level h in the receiving cavity 51 remains within the preset height range, simplifying the structure of the vehicle humidifier 100.

[0089] The preset height range can be set to be less than the height of the receiving cavity 51. When the liquid height h in the receiving cavity 51 is equal to or greater than the height of the receiving cavity 51, liquid will flow out from the air inlet 101, causing liquid leakage. Conversely, when the liquid height h in the receiving cavity 51 is less than the height of the receiving cavity 51, liquid will not flow out from the air inlet 101, ensuring the liquid sealing of the vehicle humidifier 100.

[0090] The preset height range can also be set to be less than the shock-resistant height dimension. When the liquid height h in the receiving cavity 51 is greater than or equal to the shock-resistant height dimension, when the vehicle is subjected to vibration waves and the vehicle humidifier 100 is exposed, the liquid may flow out from the air inlet 101, causing liquid leakage. Conversely, when the liquid height h in the receiving cavity 51 is less than the shock-resistant height dimension, even if the vehicle is subjected to vibration waves and the vehicle humidifier 100 is exposed, the liquid will not flow out from the air inlet 101, ensuring the liquid sealing of the vehicle humidifier 100.

[0091] In some examples, the preset height range can be set to 1mm to 3mm, 2mm to 4mm, or other numerical ranges.

[0092] In some embodiments, when the water tank 41 is configured as a closed enclosure, the closed enclosure and the receiving cavity 51 can be connected by a pipe, which can serve as a return flow element.

[0093] In some examples, a first hole is opened on one wall of the enclosed box, and one end of the pipe is connected to the inside of the water tank 41 through the first hole; a second hole is opened on the bottom wall of the tray 50, and the other end of the pipe is connected to the receiving cavity 51 through the second hole.

[0094] In some embodiments, the technical solution of the water inlet connecting the receiving cavity 51 and the water outlet 401 can refer to the implementation of the return component connecting the receiving cavity 51 and the water tank 41, and will not be repeated here.

[0095] In some embodiments, when the water tank 41 is configured as an open box, the water inlet is constructed as a water inlet hole 54, which penetrates the bottom wall of the circular cavity 50a, and the water outlet 401 is directly connected to the receiving cavity 51 through the water inlet hole 54. Similarly, the return component is constructed as a return hole 55, which penetrates the bottom wall of the annular cavity 50b. Since the open end 411 of the water tank 41 is connected to the side of the tray 50 facing away from the receiving cavity 51, the return hole 55 directly connects the receiving cavity 51 and the water tank 41 without the need for other connecting structures, thus improving the simplicity of the structure and the manufacturing cost.

[0096] In some embodiments, the water pump 42 is located inside the water tank 41. In this case, the outlet end 401 of the water pump 42 can be directly used as the outlet 401 of the water supply component 40. The outlet end 401 of the water pump 42, as the outlet 401, is directly connected to the inlet hole 54.

[0097] To ensure the stability and sealing of the connection between the outlet end 401 of the water pump 42 and the inlet hole 54, in some examples, the sidewall of the inlet hole 54 extends along the axial direction of the tray 50 towards one end opposite to the receiving cavity 51, forming an extension section 53. Accordingly, the outlet end 401 of the water pump 42 is fitted onto the extension section 53 to achieve communication between the outlet end 401 and the inlet hole 54.

[0098] In the case where the filter element 20 is constructed as a sheet structure that is alternately folded in the front and back and arranged in a ring direction, in order to prevent liquid from leaking from the air inlet 101 to the outside of the vehicle humidifier 100, in some embodiments, a partition plate 56 is provided on the bottom wall of the receiving cavity 51. The partition plate 56 divides the receiving cavity 51 into a circular cavity 50a and an annular cavity 50b, with the annular cavity 50b located around the circular cavity 50a.

[0099] One end of the filter element 20 abuts against the bottom wall of the annular cavity 50b, and the outer wall of the circular cavity 50a abuts against the inner wall of the filter element 20. The inlet is connected between the circular cavity 50a and the outlet 401; the return is connected between the annular cavity 50b and the water tank 41. In this way, after the liquid enters the circular cavity 50a through the inlet hole 54, it flows from the inner wall of the filter element 20 to the outer wall and then into the annular cavity 50b. This conforms to the capillary wetting law of the filter element 20, thus facilitating uniform wetting of the filter element 20. Simultaneously, the liquid preferentially resides within the circular cavity 50a, and only overflows into the annular cavity 50b after the filter element 20 has been wetted. Since the liquid can only overflow from the air inlet 101 when it is located within the annular cavity 50b, the risk of liquid overflowing from the air inlet 101 is reduced.

[0100] In addition, the outer wall of the circular cavity 50a abuts against the inner wall of the filter element 20, thereby positioning the filter element 20 and preventing the filter element 20 from shifting due to vibration. Positioning does not require fasteners or other connecting structures, thus effectively improving the convenience of replacing or cleaning the filter element 20.

[0101] In some embodiments, the flow rate ratio of the inlet and outlet components is configured to a preset value, thereby achieving dynamic flow balance of liquid within the inlet and outlet components to ensure that the liquid height h of the receiving cavity 51 is within a preset height range. It is understood that the flow rate ratio of the inlet and outlet components can be obtained by configuring their orifice diameters, which will not be elaborated further here.

[0102] In some embodiments, when the water inlet is configured as a water inlet hole 54 and the return flow is configured as a return flow hole 55, the cross-sectional areas of the water inlet hole 54 and the return flow hole 55 are configured to a preset ratio, so that the liquid height h of the second part is within a preset height range.

[0103] In some embodiments, the number of reflux holes 55 can be 1, 2, 3, 4 or other values. This application does not limit the number of reflux holes 55.

[0104] In some examples, if the number of reflux orifices 55 is 1, its cross-sectional area is configured as 8x; if the number of reflux orifices 55 is 2, the cross-sectional area of ​​each reflux orifice 55 is configured as 4x, and so on.

[0105] In some embodiments, the reflux holes 55 may be spaced apart circumferentially along the annular cavity 50b.

[0106] Figure 9 This is a schematic diagram of the air duct structure 60 in the vehicle humidifier 100 provided in this application embodiment; Figure 10 yes Figure 9 The diagram shows the structure of the air duct 60 from another angle. Figure 9 and Figure 10As shown, in some embodiments, the vehicle humidifier 100 also includes an air duct structure 60, which is connected between the fan 30 and the filter element 20. The air duct structure 60 can guide the airflow generated by the fan 30 to the filter element 20, reduce airflow resistance, improve airflow efficiency, reduce energy loss, and thus improve the humidification effect of the vehicle humidifier 100.

[0107] To prevent liquid on filter element 20 from leaking to other parts, in some embodiments, the air duct structure 60 is provided with an extension 61 and a folding section 62, and the space enclosed by the extension 61 and the folding section 62 is used to install the control panel.

[0108] The extension 61 is formed by extending one end of the air duct structure 60 outward along the circumference of the air duct structure 60, and the folded section 62 is formed by folding the end of the extension 61 towards the other end of the air duct structure 60 in the axial direction, and the outer wall of the folded section 62 along the extension direction of the folded section 62 abuts against the inner wall of the housing 10.

[0109] When the filter element 20 is constructed as a sheet structure that is alternately folded in the front and back and arranged in a ring direction, the edge of the extension 61 away from the folded section 62 extends outward along the axial direction of the air duct structure 60 to form a sealing part 63. One end of the filter element 20 is fitted onto the sealing part 63 and the end face of the filter element 20 abuts against the extension 61.

[0110] The control panel can communicate with the vehicle's console. Users can then issue commands to the console, including information about operating the in-vehicle humidifier 100, such as target humidity and fan speed. The control panel responds to these commands by controlling the in-vehicle humidifier 100 to blow out humidified air to humidify the air inside the vehicle.

[0111] Through the above-described solution, the air duct structure 60, with its extension 61 and sealing part 63, effectively seals the filter element 20, preventing liquid leakage from the filter element 20 to other areas. Specifically, the end of the filter element 20 facing away from the tray 50 is fitted onto the sealing part 63, and the end face of the filter element 20 abuts against the extension 61, forming a double-sealing structure. This design not only prevents liquid leakage from affecting critical components such as the control panel but also ensures the stable operation of the humidifier.

[0112] To ensure that the liquid in the filter element 20 does not leak into other areas, in some embodiments, a second sealing ring 611 is provided between the folding section 62 and the outer shell; the air duct structure 60 is aligned and connected with the fan 30 along the axial direction of the air duct structure 60, and a third sealing ring 603 is provided at the connection between the air duct structure 60 and the fan 30, thereby preventing humid gas from leaking from the gap between the fan 30 and the fan 30 structure, or from the gap between the fan 30 and the air outlet 102.

[0113] In some embodiments, the first sealing ring 43, the second sealing ring 611, or the third sealing ring 603 can all be configured as O-rings, sealing rubber rings, or other components with sealing structures. This application does not limit this.

[0114] By designing the second sealing ring 611 and the third sealing ring 603, the connection points between the air duct structure 60 and other structures of the vehicle humidifier 100 are eliminated, enabling the housing 10 and its internal structure to achieve a sealed design. This ensures that liquid or humid gas will not leak to other areas of the vehicle humidifier 100 or to the outside of the vehicle humidifier 100, thus solving the problems of the vehicle humidifier 100's complex structure making it difficult to clean and the ease with which water can enter through the air duct, causing short circuits.

[0115] like Figure 5 As shown, in some embodiments, the housing 10 includes a top cover 10a and a side plate 10b connected to the peripheral edge of the top cover 10a; an air outlet 102 is provided on the top cover 10a, and the air outlet 102 is aligned and connected to the fan 30; a fourth sealing ring 604 is provided at the connection between the air outlet 102 and the fan 30, so as to prevent humid gas from leaking from the gap between the top cover 10a and the side plate 10b to the control panel and affecting the performance of the control panel.

[0116] In some examples, a fifth sealing ring 105 is provided between the top cover 10a and the side plate 10b to ensure the sealing of the connection between the top cover 10a and the side plate 10b, prevent liquid from leaking from the gap between the top cover 10a and the side plate 10b, and improve the sealing of the vehicle humidifier 100.

[0117] In order to obtain the liquid level in the water tank 41 in a timely manner, in some embodiments, the vehicle humidifier 100 includes a water level detector (not shown) for detecting the liquid level in the water tank 41.

[0118] If the liquid level is lower than the target level, the water level detector outputs a detection signal, which is used by the control center to issue a prompt message; and / or the detection signal is used by the control center to control the water pump 42 to stop supplying water to the receiving cavity 51. The prompt message is used to remind the user to add liquid to the water tank 41.

[0119] The control center can be a console in the vehicle center or a control center configured in the vehicle humidifier 100. This application embodiment does not limit the type of control center.

[0120] The target water level can be understood as the water level at which liquid needs to be added. It can be determined comprehensively based on parameters such as the volume of the water tank 41 and the power of the water pump 42. This application embodiment does not impose any restrictions on the target water level.

[0121] In some embodiments, a water level detector is disposed inside the water tank 41 to detect the liquid level.

[0122] In some other embodiments, the water pump 42 can be configured as a water level detection pump, that is, the water pump 42 integrates a water level detector, and the water level detector of the water level detection pump is directly set in the water tank 41 to detect the liquid water level.

[0123] In some embodiments, the water level detector is communicatively connected to a control center to transmit detection signals. Accordingly, upon receiving the detection signal, the control center issues a warning message based on the signal.

[0124] In some other embodiments, the water pump 42 is also communicatively connected to a control center. Accordingly, upon receiving a detection signal, the control center controls the water pump 42 to stop supplying water to the receiving cavity 51 based on the detection signal.

[0125] In this embodiment, the user can add liquid to the water tank 41 in two ways: First, the user can directly add liquid to the air outlet 102, and the liquid will flow into the water tank 41 along the air outlet 102, the air duct structure 60, the fan 30, the filter element 20 and the return component; Second, the user can directly remove the shell 10 and its internal structure along the tray 50 and add liquid directly to the water tank 41.

[0126] It should be noted that since the humidity of the humid gas is regulated by the wind speed of the fan 30, the filter element 20 will not be affected if it is completely soaked when the user adds liquid directly to the air outlet 102.

[0127] In some other embodiments, the water level detector may be located within the tray 50. The water level detector is used to issue a warning message when the liquid level h falls below a preset height range for a preset time. The warning message prompts the user to add liquid to the water supply assembly 40.

[0128] It should be noted that when the liquid level h is below the preset height range, the water pump 42 will prioritize supplying liquid from the water tank 41 to the receiving cavity 51. In other words, when the liquid level h is below the preset height range, a preset time can be allocated for the water pump 42 to supply liquid from the water tank 41 to the receiving cavity 51, thereby adjusting the liquid level h to the preset height range. If the liquid level h remains below the preset height range after the preset time has elapsed, it may indicate that the water tank 41 is low on liquid and needs to be replenished. In this case, the water level detector will issue a warning message to prompt the user to replenish liquid in the water tank 41.

[0129] Here, the preset time can be determined based on parameters such as the power of the water pump 42 and the volume of liquid reaching the preset height range. This application embodiment does not impose any restrictions on this.

[0130] The water level detector can be a Hall effect type, capacitive type, ultrasonic type, or probe conductive type, etc., which can detect water level. This application embodiment does not limit the type of water level detector.

[0131] In some embodiments, the upright plate 502 of the tray 50 is detachably and rotatably fixed to the housing 10. The technical solution for connecting the upright plate 502 and the housing 10 can refer to the implementation of the connection part 52 of the tray 50 and the opening end 411 of the water tank 41, and will not be described again here. Thus, the tray 50 and the housing 10 are detachably and rotatably fixed, and the tray 50 and the water tank 41 are detachably and rotatably fixed, thereby improving the convenience of disassembling the vehicle humidifier 100.

[0132] In the vehicle humidifier 100 provided in this embodiment, the filter element 20 is always wetted, moistening the flowing gas to form humidified gas. This humidified gas is then discharged from the air outlet 102 after passing through the fan 30. Compared to the technical solution of microporous ultrasonic humidifiers, this avoids the phenomenon of micropores becoming clogged, enabling the filter element 20 to operate normally for extended periods and improving the user experience of the vehicle humidifier 100. In contrast, the microporous ultrasonic humidifier uses a high-speed airflow generated by ultrasonic vibration of the mist-forming plate to impact and agitate the liquid, causing the liquid to be sheared and compressed as it passes through the micropores, forming tiny droplets that are sprayed out by the high-speed airflow to form a fine mist. Furthermore, the vehicle humidifier 100 operates based on the filter element 20 and the water supply assembly 40, resulting in a significantly higher humidification efficiency than the microporous ultrasonic humidifier, meeting the needs of larger in-vehicle environments.

[0133] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0134] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A vehicle-mounted humidifier characterized by comprising: include: The housing has a tray at one end, the tray having an opening facing a receiving cavity inside the housing for containing liquid, and an air outlet at the other end of the housing; The filter element has a capillary structure, and one end of the filter element is located in the receiving cavity for absorbing liquid and being wetted by the capillary structure. The housing has an air inlet on the side wall near the tray. A fan is connected between the filter element and the air outlet. Under the action of the fan, external air flows into the wetted filter element through the air inlet to form humid gas, which is then blown out through the air outlet after passing through the fan. A water supply assembly, wherein the outlet of the water supply assembly is connected to the receiving cavity to supply water into the receiving cavity.

2. The vehicle-mounted humidifier according to claim 1, characterized by The filter element is constructed by alternating folds of sheet-like material along a circumferential direction.

3. The vehicle-mounted humidifier according to claim 1, characterized by The water supply components include: A water tank is used to hold liquids; A water pump is connected to both the water tank and the outlet to transfer the liquid in the water tank to the receiving cavity through the outlet. A water inlet, which connects the receiving cavity and the water outlet; A return flow element is connected between the receiving cavity and the water tank, used to return the liquid in the receiving cavity to the water tank, so that the liquid level in the receiving cavity is within a preset height range.

4. The vehicle-mounted humidifier according to claim 3, characterized by When the filter element is constructed as a sheet-like structure that is alternately folded in both directions and arranged in a ring direction, a partition plate is provided on the bottom wall of the receiving cavity. The partition plate divides the receiving cavity into a circular cavity and an annular cavity, and the annular cavity is located on the periphery of the circular cavity. One end of the filter element abuts against the bottom wall of the annular cavity, and the outer wall of the circular cavity abuts against the inner wall of the filter element; the water inlet is connected between the circular cavity and the water outlet; the return flow element is connected between the annular cavity and the water tank.

5. The vehicle-mounted humidifier according to claim 4, wherein The water tank is configured as an open tank body, and the open end of the water tank is connected to the side of the tray facing away from the receiving cavity; The water inlet is constructed as a water inlet hole, which penetrates the bottom wall of the circular cavity; The reflux component is constructed as a reflux hole, which penetrates the bottom wall of the annular cavity.

6. The vehicle-mounted humidifier according to claim 5, characterized in that, The tray is provided with a connecting part, which is formed by the bottom wall edge of the receiving cavity extending to the side opposite to the receiving cavity; the connecting part is sleeved with the opening end of the water tank, and a first sealing ring is provided between the connecting part and the opening end of the water tank.

7. The vehicle-mounted humidifier according to any one of claims 1 to 6, characterized by, The vehicle humidifier also includes an air duct structure, which connects the fan and the filter element.

8. The vehicle-mounted humidifier according to claim 7, characterized by The air duct structure is provided with an extension and a folding section, and the space enclosed by the extension and the folding section is used to install the control panel of the vehicle humidifier. The extension is formed by one end of the air duct structure extending outward along the circumference of the air duct structure, and the folded section is formed by the end of the extension being folded towards the other end of the air duct structure in the axial direction, and the outer wall of the folded section along the extension direction of the folded section abuts against the inner wall of the shell. When the filter element is constructed as a sheet-like structure that is alternately folded in both directions and arranged in a ring direction, the extension extends outward along the axial direction of the air duct structure from the edge away from the folded section to form a sealing part. One end of the filter element is fitted onto the sealing part and the end face of the filter element abuts against the extension.

9. The vehicle-mounted humidifier according to claim 8, characterized by A second sealing ring is provided between the folding section and the housing; the air duct structure is aligned and connected to the fan along the axial direction of the air duct structure, and a third sealing ring is provided at the connection between the air duct structure and the fan; The housing includes a top cover and a side plate connected to the edge of the top cover; the air outlet is located on the top cover and is aligned and connected to the fan; a fourth sealing ring is provided at the connection between the air outlet and the fan.

10. The vehicle-mounted humidifier according to any one of claims 3 to 6, characterized by The vehicle-mounted humidifier includes a water level detector, which is used to detect the liquid level in the water tank. If the liquid level is lower than the target level, the water level detector outputs a detection signal, which is used by the control center to issue a prompt message; and / or the detection signal is used by the control center to control the water pump to stop supplying water to the containment cavity; The prompt message is used to remind the user to add liquid to the water tank.

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