Humidifier filter element assembly capable of adjusting mist outlet amount and method

Abstract

The invention discloses a humidifier filter element assembly capable of adjusting the mist outlet amount and a method, and relates to the technical field of humidifier filter elements. Through the core design of filter assembly bottom end position adjustment and radial expansion driving assembly automatic linkage, a user can manually adjust the position of the filter assembly according to the air drying degree, the radial expansion driving assembly is triggered to automatically complete radial expansion or contraction of the filter assembly, dynamic adjustment of the evaporation area is achieved, namely the evaporation area is maximized during expansion, and the evaporation efficiency is improved. The mist outlet amount is remarkably increased, air dryness is rapidly relieved, the evaporation area is recovered to be minimum during shrinkage, the mist outlet amount is accurately reduced, the problems of stuffiness, mold breeding and the like caused by too high humidity are avoided, a first adjusting mark and a second adjusting mark of the upper cover assembly are matched with a knob pointer, a user can directly judge the mist outlet amount through pointing of the pointer, detection does not need to depend on an additional instrument, and the practicability is high. The knob type adjusting structure is simple and easy to understand, and the problems that a traditional humidifier is complex in adjusting logic, and the mist amount is not matched with the requirement are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of humidifier filter cartridges, in particular to a humidifier filter cartridge assembly and method capable of adjusting mist output. BACKGROUND

[0002] The humidifier filter cartridge is a core functional component for ensuring clean water output and improving humidification effect of the humidification equipment. Its core function is to filter impurities in raw water, improve water quality, and avoid the influence of scale deposition and bacterial growth on the equipment and human health. Through the pore structure of the material, physical impurities such as silt, rust, and scale particles in the water are intercepted, and through adsorption or chemical reaction, residual chlorine, odors, and part of heavy metal ions are removed, so that the purified water forms clean water vapor through evaporation or atomization.

[0003] Referring to the filter cartridge assembly and humidifier disclosed in the patent application with publication number CN218358095U, the outer contour is formed in a circular truncated cone or an approximate circular truncated cone; the support and the bottom plate form an accommodation space; and the filter paper is accommodated in the accommodation space. In this way, in the same cylindrical shell space, the humidification area of the humidification filter paper is larger than that of the ring cylinder filter cartridge, thereby improving the humidification effect. The filter cartridge assembly in the above-mentioned prior art has the following defects in actual use: The existing filter cartridges mostly adopt a structure design with fixed evaporation area, and can only realize extensive mist output control by adjusting the power of the humidifier. The evaporation area cannot be dynamically adjusted according to the change of air humidity, and problems such as excessively high humidity or low humidification efficiency are prone to occur. It is difficult to adapt to the comfortable humidity demand of the human body. In addition, the existing mist output adjustment structure mostly relies on electronic sensors and driving components. In the humid working environment of the humidifier, the electronic components are prone to malfunction due to moisture, have a high failure rate, and have a complex structure, which is difficult to assemble and maintain.

[0004] Therefore, the present application provides a humidifier filter cartridge assembly and method capable of adjusting mist output to solve the above-mentioned problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a humidifier filter cartridge assembly and method capable of adjusting mist output to solve the problems that the existing filter cartridges mostly adopt a structure design with fixed evaporation area, can only realize extensive mist output control by adjusting the power of the humidifier, cannot dynamically adjust the evaporation area according to the change of air humidity, problems such as excessively high humidity or low humidification efficiency are prone to occur, it is difficult to adapt to the comfortable humidity demand of the human body, and the existing mist output adjustment structure mostly relies on electronic sensors and driving components. In the humid working environment of the humidifier, the electronic components are prone to malfunction due to moisture, have a high failure rate, and have a complex structure, which is difficult to assemble and maintain.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a humidifier filter element assembly with adjustable mist output, comprising an upper cover assembly and a lower end cover disposed below it, and further comprising: The filter assembly is detachably installed between the upper cover assembly and the lower end cover. It is used to intercept impurities in the water and adsorb odors to ensure that the humidified water mist is clean and odorless. It can also flexibly adjust its own evaporation area according to the dryness of the air to control the amount of mist output and adjust the air humidity to meet the human comfort level. The radial expansion drive component is located inside the filter assembly. When the filter assembly is adjusted downwards to the bottom position, it automatically drives the filter assembly to complete radial expansion, thereby increasing the evaporation area of ​​the filter assembly and increasing the amount of water mist evaporation. When the filter assembly is adjusted upwards to the bottom position, it automatically releases the radial expansion force on the filter assembly, thereby promoting the filter assembly to quickly return to its original state and reducing the amount of water mist evaporation.

[0007] Furthermore, the filter assembly includes a support cylinder assembly, on the outside of which an active adsorption component for adsorbing odors in the water mist is sleeved, and on the outside of the active adsorption component a meltblown cloth filter layer for preliminary filtration of water is fixedly sleeved. Multiple guide rails are uniformly fixedly arranged on the inner wall of the support cylinder assembly, and a mist volume adjustment component for adjusting the mist output is slidably sleeved on the outer wall of the multiple guide rails. The support cylinder assembly includes a support cylinder frame, on the outer wall of which a plurality of clearance slots are evenly provided for water mist to pass through.

[0008] Furthermore, the activated adsorption component includes a support cylinder with multiple clearance holes evenly distributed on its outer wall and a hollow cavity inside the support cylinder containing activated carbon particles. A sealing plate is detachably installed on the top of the hollow cavity by bolts to facilitate replacement of the activated carbon particles.

[0009] Furthermore, the mist volume adjustment component includes multiple longitudinally stacked fiber evaporation layers arranged in a ring array. Adjacent longitudinally stacked fiber evaporation layers are fixedly connected by transversely stacked fiber evaporation layers. Silicone sealing rings are fixedly installed at the top and bottom of the multiple longitudinally stacked fiber evaporation layers and transversely stacked fiber evaporation layers. Multiple sliding sleeves are evenly fixedly installed around the outer wall of the upper silicone sealing ring. Each sliding sleeve is slidably fitted onto the outer wall of one of the guide rails. Multiple elastic rubber support arms are evenly fixedly installed at the bottom of the lower silicone sealing ring. A threaded sleeve is fixedly installed at the end of the multiple elastic rubber support arms. A screw is threadedly connected to the threaded sleeve. A knob is fixedly installed at the top of the screw. A pointer for indicating the height of the silicone sealing ring is fixedly installed at the top of the knob. A drive disk is fixedly fitted on the outer wall of the screw and below the elastic rubber support arm. Arc-shaped wedge blocks are symmetrically fixedly installed on both sides of the bottom of the drive disk.

[0010] Furthermore, the radial expansion drive assembly includes an upper expansion unit and a lower expansion unit distributed sequentially from top to bottom. Multiple hollow tubes are uniformly fixed on the inner walls of the upper and lower expansion units. A gas forming assembly is arranged between the multiple hollow tubes. The gas forming assembly and the multiple hollow tubes are connected by conduits. The gas output from the gas forming assembly enters the multiple hollow tubes through multiple conduits and sequentially enters the upper and lower expansion units to complete the inflation process.

[0011] Furthermore, the gas forming assembly includes an air cylinder fixedly disposed inside the lower end cover. An annular lifting plate is slidably disposed inside the air cylinder. Two protrusions are symmetrically fixedly disposed on both sides of the top of the annular lifting plate, and multiple springs are uniformly fixedly disposed between the bottom of the annular lifting plate and the bottom of the inner cavity of the air cylinder.

[0012] Furthermore, the upper expansion unit is identical in structure to the lower expansion unit except that its radius is smaller. The upper expansion unit includes an annular frame, the outer wall of which is recessed inward to form an annular groove. An airbag is fixedly installed in the annular groove, and the airbag and multiple hollow tubes are connected by branch pipes.

[0013] Furthermore, the upper cover assembly includes an upper cover, on which a first adjustment mark and a second adjustment mark are symmetrically fixed on both sides of the top, representing a water mist volume reduction mark and a water mist volume increase mark, respectively. When the pointer rotates counterclockwise from the state pointing to the second adjustment mark to the first adjustment mark, the mist output gradually decreases from the maximum to the minimum.

[0014] Furthermore, both the longitudinally stacked fiber evaporation layer and the transversely stacked fiber evaporation layer are woven from nano-silver modified polyester fibers, and the wavy inner walls of both evaporation layers are integrally formed with multiple micron-level protrusions. The micron-level protrusions are hemispherical and are used to generate turbulent disturbances during the expansion or contraction of the evaporation layer, thereby enhancing the contact efficiency between the airflow and the moisture.

[0015] Furthermore, an annular pressure sensor is embedded in the inner wall of the airbag, and a pressure relief channel is opened on the side wall of the air cylinder. An electromagnetic pressure relief valve is installed in the pressure relief channel, and the electromagnetic pressure relief valve is electrically connected to the pressure sensor.

[0016] This invention also discloses a method for using a humidifier filter element assembly with adjustable mist output, the method comprising the following steps: Step 1, Initial standby state: The upper cover assembly and the lower end cover are aligned to form an installation cavity. The filter assembly is detachably assembled into this cavity. At this time, the filter assembly is in its original contracted state with the smallest evaporation area. The radial expansion drive assembly is located inside the filter assembly and no radial expansion force is applied. The entire device maintains a small mist output in standby mode, and only a small amount of water mist evaporates through the basic filtration area of ​​the filter assembly to maintain basic air humidity. Step 2, Increase mist output: When it is necessary to increase air humidity, manually adjust the bottom position of the filter component downwards; at this time, the filter component triggers the internal radial expansion drive component, which automatically starts and applies radial expansion force to the filter component, pushing the filter component to extend radially outwards, and its evaporation area increases significantly; at the same time, the filtration and adsorption functions of the filter component continue to be effective, intercepting impurities and adsorbing odors, and the clean water mist evaporates quickly through the expanded evaporation surface, greatly increasing the mist output and accelerating the increase of air humidity; Step 3, Reduce mist output operation: When the air humidity reaches the comfortable range for the human body or when it is necessary to reduce the mist output, manually adjust the bottom position of the filter component upwards; after the radial expansion drive component senses the upward movement of the filter component, it automatically releases the radial expansion force on the filter component; under the action of its own structural reset characteristics, the filter component quickly shrinks back to its original state, and the evaporation area is restored to the minimum; the amount of water mist evaporation is reduced accordingly, the mist output is reduced, and the air humidity is avoided from being too high, maintaining humidity balance.

[0017] This invention provides a humidifier filter element assembly and method with adjustable mist output. Compared with the prior art, it has the following advantages: 1. A humidifier filter element assembly and method with adjustable mist output, through the core design of "adjustment of the bottom position of the filter element + automatic linkage of the radial expansion drive component", allows users to manually adjust the position of the filter element according to the dryness of the air, such as the dry autumn and winter seasons or the humid plum rain season. This triggers the radial expansion drive component to automatically complete the radial expansion or contraction of the filter element, achieving dynamic adjustment of the evaporation area. That is, when expanding, the evaporation area is maximized, and the mist output is significantly increased, quickly relieving the dryness of the air. When contracting, the evaporation area is restored to the minimum, and the mist output is precisely reduced, avoiding problems such as stuffiness and mold growth caused by excessive humidity. It adapts to the comfortable humidity range for the human body throughout. Secondly, the first and second adjustment marks on the top cover assembly work in conjunction with the knob pointer, allowing users to directly judge the amount of mist output by the pointer direction without relying on additional instruments. The knob adjustment structure is simple and easy to understand, and can be easily operated by the elderly and children, solving the pain points of traditional humidifiers such as "complex adjustment logic and mismatch between mist output and needs".

[0018] 2. A humidifier filter element assembly and method with adjustable mist output, wherein the mist output adjustment component adopts a "longitudinal + transverse wavy fiber evaporation layer" design, which expands radially to form a bottom funnel-shaped structure, increasing the contact area with the airflow and adapting to the bottom-to-top airflow characteristics inside the humidifier, making water evaporation more uniform and faster, significantly increasing the mist output per unit time, and producing fine mist without water droplets; secondly, the filter component integrates a dual purification structure of "meltblown cloth filter layer + activated carbon adsorption component", which can initially intercept impurities in the water, The filter adsorbs odors and harmful gases after particulate matter, ensuring that the humidified water source is clean, free of impurities and odors after multi-stage treatment. This avoids the water mist pollution and respiratory irritation problems caused by insufficient filtration capacity of traditional humidifiers. It is especially suitable for mothers and infants and sensitive people. Moreover, the filter component is detachably assembled between the upper cover component and the lower end cover. Users can remove it regularly for rinsing and disinfection to prevent the growth of bacteria and mold inside the filter. This solves the industry pain point of "dirt and grime accumulating and difficult to clean" in traditional humidifier filters and improves the hygiene of use.

[0019] 3. A humidifier filter element assembly and method with adjustable mist output: The radial expansion drive assembly achieves power transmission through a purely mechanical structure of "arc-shaped wedge block + protrusion + air cylinder + air bag," eliminating the need for electronic components such as motors and sensors. This avoids problems such as damage or malfunction of electronic components due to moisture, adapts to the humid working environment of the humidifier, has a longer service life, and lower maintenance costs. Secondly, when the user adjusts the position of the filter element, the radial expansion drive assembly directly triggers the air bag to inflate or deflate through mechanical transmission, pushing the filter element to expand or contract rapidly. The elastic rubber support arm and the elastic properties of the wavy fiber evaporation layer work together to ensure that the filter element can quickly return to its original state after losing expansion force, without jamming or delay, solving the problems of "slow response and incomplete reset" in traditional adjustment structures.

[0020] 4. A humidifier filter element assembly and method with adjustable mist output, wherein silicone sealing rings are provided at the top and bottom of the mist output adjustment assembly to ensure sliding sealing with the guide rail and prevent water leakage into the drive assembly. The avoidance groove of the support cylinder assembly and the avoidance hole of the active adsorption assembly are staggered to ensure smooth passage of water mist and enhance the support strength of the overall structure, avoiding deformation and damage when the filter element expands.

[0021] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 A magnified structural diagram of part A in the diagram; Figure 3 This is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 4 This is a schematic cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 A magnified structural diagram of part B in the diagram; Figure 6 This is a schematic diagram of the decomposed state structure of the present invention; Figure 7 This is a schematic diagram of the first state structure of the filter component of the present invention; Figure 8 For the present invention Figure 7 A magnified structural diagram of part C in the diagram; Figure 9 This is a schematic diagram of the second state structure of the filter component of the present invention; Figure 10 This is a schematic diagram of the decomposed state structure of the filter component of the present invention; Figure 11 This is a schematic diagram of the first state structure of the mist volume regulating component of the present invention; Figure 12 This is a schematic diagram of the second state structure of the mist volume regulating component of the present invention; Figure 13 This is a schematic diagram of the radial expansion drive component structure of the present invention; Figure 14 This is a cross-sectional view of the gas forming component of the present invention.

[0023] In the diagram: 1. Top cover assembly; 101. Top end cover; 102. First adjustment mark; 103. Second adjustment mark; 2. Bottom end cover; 3. Filter assembly; 31. Support cylinder assembly; 311. Support cylinder frame; 312. Clearance slot; 32. Activated adsorption assembly; 321. Carrier cylinder; 322. Clearance through hole; 33. Meltblown fabric filter layer; 34. Guide rail; 35. Mist volume adjustment assembly; 351. Longitudinal stacked fiber evaporation layer; 352. Transverse stacked fiber evaporation layer; 35 3. Silicone sealing ring; 354. Sliding sleeve; 355. Screw; 356. Knob; 357. Pointer; 358. Drive disc; 359. Arc-shaped wedge block; 3510. Elastic rubber support arm; 4. Radial expansion drive assembly; 41. Upper expansion unit; 411. Ring frame; 412. Airbag; 42. Lower expansion unit; 43. Hollow tube; 44. Gas forming assembly; 441. Air cylinder; 442. Annular lifting plate; 443. Protrusion; 444. Spring; 45. Conduit. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This invention provides three technical solutions: a humidifier filter element assembly with adjustable mist output, specifically including the following embodiments: like Figures 1-5 A first embodiment is shown: a humidifier filter assembly with adjustable mist output, including an upper cover assembly 1 and a lower end cover 2 disposed below it, and further comprising: The filter component 3 is detachably installed between the upper cover component 1 and the lower end cover 2. It is used to intercept impurities in the water and adsorb odors to ensure that the humidified water mist is clean and odorless. It can also flexibly adjust its own evaporation area according to the dryness of the air and control the amount of mist to adjust the air humidity to meet the human comfort level. The radial expansion drive component 4 is located inside the filter component 3. When the bottom position of the filter component 3 is adjusted downward, it automatically drives the filter component 3 to complete radial expansion, thereby increasing the evaporation area of ​​the filter component 3 and increasing the amount of water mist evaporation. When the bottom position of the filter component 3 is adjusted upward, it automatically releases the radial expansion force on the filter component 3, thereby promoting the filter component 3 to quickly return to its original state and reducing the amount of water mist evaporation.

[0026] like Figures 7-12The second embodiment is shown. The filter assembly 3 includes a support cylinder assembly 31. An active adsorption component 32 for adsorbing odors in water mist is sleeved on the outside of the support cylinder assembly 31. A meltblown cloth filter layer 33 for preliminary filtration of water is also fixedly sleeved on the outside of the active adsorption component 32. A plurality of guide rails 34 are uniformly fixedly arranged on the inner wall of the support cylinder assembly 31. A mist volume adjustment component 35 for adjusting the mist output is slidably sleeved on the outer wall of the plurality of guide rails 34. The support cylinder assembly 31 includes a support cylinder frame 311. A plurality of clearance grooves 312 for water mist to pass through are uniformly opened on the outer wall of the support cylinder frame 311.

[0027] In this embodiment, the activated adsorption component 32 includes a support cylinder 321. Multiple clearance holes 322 are evenly distributed on the outer wall of the support cylinder 321, and a hollow cavity is formed inside the support cylinder 321. Activated carbon particles are disposed within the hollow cavity. A sealing plate is detachably installed on the top of the hollow cavity via bolts to facilitate replacement of the activated carbon particles. The inner diameter of the clearance holes 322 is smaller than the minimum outer diameter of the activated carbon particles to ensure that the activated carbon particles do not "escape" through the clearance holes 322.

[0028] In this embodiment, the mist volume regulating component 35 includes multiple longitudinally stacked fiber evaporation layers 351 arranged in a ring array. Adjacent longitudinally stacked fiber evaporation layers 351 are fixedly connected by transversely stacked fiber evaporation layers 352. Silicone sealing rings 353 are fixedly disposed at the top and bottom of both the multiple longitudinally stacked fiber evaporation layers 351 and the transversely stacked fiber evaporation layers 352. Multiple sliding sleeves 354 are evenly fixedly disposed around the outer wall of the upper silicone sealing ring 353. Each sliding sleeve 354 is correspondingly slidably fitted onto the outer wall of one of the guide rails 34. The lower silicone sealing ring 354... Multiple elastic rubber support arms 3510 are evenly fixedly arranged at the bottom of the sealing ring 353. The ends of the multiple elastic rubber support arms 3510 are all fixedly arranged with threaded sleeves. A screw 355 is internally threaded to the threaded sleeve. A knob 356 is fixedly arranged at the top of the screw 355. A pointer 357 for indicating the height of the silicone sealing ring 353 is fixedly arranged at the top of the knob 356. A drive disk 358 is fixedly sleeved on the outer wall of the screw 355 and below the elastic rubber support arms 3510. Arc-shaped wedge blocks 359 are symmetrically fixed on both sides of the bottom of the drive disk 358. The elastic rubber support arm 3510 possesses both elasticity and support properties. When the screw 355 drives the threaded sleeve to move up or down, the elastic rubber support arm 3510 can use its support to pull or push the silicone sealing ring 353 to move in a targeted manner. Furthermore, when a slight radial expansion occurs below the annular structure composed of multiple longitudinally stacked fiber evaporation layers 351, the length of the elastic rubber support arm 3510 can be elastically elongated within a certain range, coordinating with the radial expansion below the longitudinally stacked fiber evaporation layers 351. The longitudinally stacked fiber evaporation layers 351 are wavy in the longitudinal direction, possessing good stretching and folding properties, while the transversely stacked fiber evaporation layers 352 are wavy in the horizontal direction, possessing good stretching and folding properties in the horizontal direction. This allows the radial expansion action to be completed below the longitudinally stacked fiber evaporation layers 351, and the layers return to their original state after losing their internal expansion force. The bottom end of the screw 355 rotates through the lower end cover 2 and extends to the outside. Its top end passes through the upper cover assembly 1 and is fixedly connected to the knob 356. In the initial state, the bottom end of the mist volume adjustment assembly 35 is not in contact with the water in the humidifier water tank. Only a part of the bottom area of ​​the meltblown cloth filter layer 33 and the active adsorption assembly 32 is immersed in the humidifier water tank.

[0029] like Figure 5 , Figures 13-14The third embodiment is shown. The radial expansion drive assembly 4 includes an upper expansion unit 41 and a lower expansion unit 42 distributed from top to bottom. Multiple hollow tubes 43 are uniformly fixed on the inner walls of the upper expansion unit 41 and the lower expansion unit 42. A gas forming assembly 44 is arranged between the multiple hollow tubes 43. The gas forming assembly 44 and the multiple hollow tubes 43 are connected by conduits 45. The gas output from the gas forming assembly 44 enters the multiple hollow tubes 43 through the multiple conduits 45, and then enters the upper expansion unit 41 and the lower expansion unit 42 in sequence to complete the inflation operation.

[0030] In this embodiment, the gas forming assembly 44 includes a gas cylinder 441 fixedly disposed inside the lower end cover 2. An annular lifting plate 442 is slidably and sealed inside the gas cylinder 441. Two protrusions 443 are symmetrically fixedly disposed on both sides of the top of the annular lifting plate 442, and multiple springs 444 are uniformly fixedly disposed between the bottom of the annular lifting plate 442 and the bottom of the inner cavity of the gas cylinder 441. The positions of the two protrusions 443 correspond one-to-one with the positions of the two arc-shaped wedges 359. When the screw 355 rotates clockwise by a preset angle, the arc-shaped wedges 359 will meet the protrusions 443 at their corresponding positions. Initially, the arc-shaped wedges 359 contact the protrusions 443 at their lower bottom slope. As the protrusions 443 slide along the bottom slope of the arc-shaped wedges 359, they gradually push the protrusions 443 downwards, achieving the effect of the two protrusions 443 simultaneously pushing the annular lifting plate 442 downwards. The conduit 45 is connected to the lowest part of the inner cavity of the air cylinder 441. The positions of the two protrusions 443 correspond one-to-one with the two arc-shaped wedges 359. When the screw 355 rotates clockwise and drives the drive disc 358 to move downward, the arc-shaped wedges 359 squeeze the protrusions 443 through the bottom slope surface, pushing the annular lifting plate 442 to slide downward along the inner wall of the air cylinder 441; when the screw rotates counterclockwise, the annular lifting plate 442 returns to its original position under the elastic restoring force of the spring 444.

[0031] In this embodiment, the upper expansion unit 41 is identical in structure to the lower expansion unit 42, except that its radius is smaller. The upper expansion unit 41 includes an annular frame 411, the outer wall of which is concave inward to form an annular groove. An airbag 412 is fixedly disposed within the annular groove, and the airbag 412 is connected to multiple hollow tubes 43 via branch pipes. When the annular lifting plate 442 moves down to its limit position, the gas filling the two airbags 412 can push the area below the multiple longitudinally stacked fiber evaporation layers 351 to expand uniformly and slightly in all directions. This results in the cylindrical structure formed by the multiple longitudinally stacked fiber evaporation layers 351 and the transversely stacked fiber evaporation layers 352 having a bottom opening larger than the top opening, thereby increasing the water mist evaporation area below the mist regulating component 35. The outer diameters of the upper expansion unit 41 and the lower expansion unit 42 increase proportionally. The side wall of the air cylinder 441 is provided with a pressure relief channel, and a one-way pressure relief valve is installed in the pressure relief channel. When the annular lifting plate 442 is reset upward, a negative pressure is formed in the inner cavity of the air cylinder 441. The gas in the air bag 412 flows back to the air cylinder 441 through the branch pipe, hollow pipe 43, and conduit 45, or is discharged through the one-way pressure relief valve, thereby realizing the contraction of the air bag and relieving the radial expansion force on the filter component.

[0032] In this embodiment, the upper cover assembly 1 includes an upper cover 101. A first adjustment mark 102 and a second adjustment mark 103 are symmetrically fixed on both sides of the top of the upper cover 101, representing a decrease in water mist volume and an increase in water mist volume, respectively. When the pointer 357 rotates counterclockwise from pointing to the second adjustment mark 103 to the first adjustment mark 102, the mist output gradually decreases from maximum to minimum. Both the longitudinally stacked fiber evaporation layer 351 and the transversely stacked fiber evaporation layer 352 are woven from nano-silver modified polyester fibers. The wavy inner walls of both evaporation layers are integrally formed with multiple micron-sized protrusions. These micron-sized protrusions are hemispherical with a diameter of 5-10 μm and a spacing of 20-30 μm between adjacent protrusions. These protrusions create turbulent disturbances during the expansion or contraction of the evaporation layer, enhancing the contact efficiency between airflow and moisture. Simultaneously, the nano-silver component inhibits bacterial growth, and the micron-sized protrusions reduce scale adhesion, achieving a self-cleaning effect for the evaporation layer and extending the service life of the filter assembly.

[0033] In this embodiment, an annular pressure sensor is embedded in the inner wall of the airbag 412, and a pressure relief channel is provided on the side wall of the air cylinder 441. An electromagnetic pressure relief valve is installed in the pressure relief channel and is electrically connected to the pressure sensor. When the air pressure inside the airbag 412 reaches a preset threshold of 0.3-0.5 MPa, the pressure sensor sends a signal to the electromagnetic pressure relief valve to control it to open and release pressure until the air pressure drops to a preset safety value of 0.2-0.3 MPa and then closes. At the same time, an elastic limit block is fixedly installed at the lower end of the guide rail 34 to limit the downward movement limit of the sliding sleeve 354, preventing the airbag 412 from rupturing due to excessive expansion. This achieves dual protection of radial expansion pressure closed-loop control and mechanical limit, improving the stability and safety of component operation.

[0034] This invention also provides a method for using an adjustable mist output humidifier filter assembly, the method comprising the following steps: Step 1, Initial standby state: The upper cover assembly 1 and the lower end cover 2 are joined to form an installation cavity. The filter assembly 3 is detachably assembled into this cavity. At this time, the filter assembly 3 is in its original contracted state, with the evaporation area at its minimum. The radial expansion drive assembly 4 is located inside the filter assembly 3 and no radial expansion force is applied. The entire device maintains a small mist output in standby mode, and only a small amount of water mist evaporates through the basic filtration area of ​​the filter assembly 3 to maintain the basic air humidity. Step 2, Increase mist output operation: When it is necessary to increase air humidity, manually adjust the bottom position of filter component 3 downwards; at this time, filter component 3 triggers the internal radial expansion drive component 4, which automatically starts and applies radial expansion force to filter component 3, pushing filter component 3 to extend radially outwards, and its evaporation area increases significantly; at the same time, the filtration and adsorption functions of filter component 3 continue to be effective, intercepting impurities and adsorbing odors, and the clean water mist evaporates quickly through the expanded evaporation surface, greatly increasing the mist output and accelerating the increase of air humidity; Step 3, Reduce mist output operation: When the air humidity reaches the comfortable range for the human body or when it is necessary to reduce the mist output, manually adjust the bottom position of the filter component 3 upwards; after the radial expansion drive component 4 senses the upward movement of the filter component 3, it automatically releases the radial expansion force on the filter component 3; under the action of its own structural reset characteristics, the filter component 3 quickly shrinks back to its original state, and the evaporation area is restored to the minimum; the water mist evaporation is reduced accordingly, the mist output is reduced, and the air humidity is avoided from being too high, maintaining humidity balance.

[0035] The specific process is as follows: When a large amount of mist is required: Rotate the knob 356 clockwise to gradually point the pointer 357 to the second adjustment mark 103, causing multiple sliding sleeves 354 to slide downwards along the guide rail 34. The threaded sleeve moves downwards along its outer wall under the drive of the screw 355, thereby causing multiple longitudinally stacked fiber evaporation layers 351 in a folded state to unfold. Since the lower position of the bottom slope of the two arc-shaped wedge blocks 359 in the initial state is in contact with the corresponding protrusion 443, when the drive disc 358 rotates synchronously with the screw 355, the two arc-shaped wedge blocks 359 gradually push the protrusion 443 downwards, causing the annular lifting plate 442 to compress the air inside the air cylinder 441. The compressed air enters the hollow tube 43 at the corresponding position through multiple conduits 45 and inflates the airbag 412 in the upward expansion unit 41 and the lower expansion unit 42, causing the airbag 412 to inflate. At this time, the outer wall of the airbag 412 and the inner wall of the longitudinally stacked fiber evaporation layers 351 at multiple positions abut against each other and move towards each other. Pushing away from the screw 355, multiple longitudinally stacked fiber evaporation layers 351 continue to slide downwards along the outer wall of the airbag 412. At this time, the elastic rubber support arm 3510 is slightly stretched and undergoes elastic deformation, while multiple transversely stacked fiber evaporation layers 352 at multiple positions gradually unfold. In conjunction with the expansion of the bottom area of ​​multiple longitudinally stacked fiber evaporation layers 351, when the pointer 357 finally points to the second adjustment mark 103, the multiple filter layers of meltblown cloth filter layer 33, active adsorption component 32 and mist volume adjustment component 35 are simultaneously immersed in water, maximizing the contact area. Water quickly permeates through the meltblown cloth filter layer 33 and active adsorption component 32 into the mist volume adjustment component 35, and evaporates in large quantities after contacting the airflow. At this time, the bottom of the cylindrical structure formed by multiple longitudinally stacked fiber evaporation layers 351 and transversely stacked fiber evaporation layers 352 is funnel-shaped, which can increase the contact area with the airflow, thereby accelerating the evaporation rate per unit time and significantly improving the mist output.

[0036] When a small amount of mist is needed: Rotate the knob 356 in the opposite direction so that the pointer 357 changes from pointing to the second adjustment mark 103 to pointing to the first adjustment mark 102. At this time, the threaded sleeve moves upward along the outer wall of the screw 355, and through multiple elastic rubber support arms 3510, it gradually pulls multiple longitudinally stacked fiber evaporation layers 351 upward, so that the longitudinally stacked fiber evaporation layers 351 gradually overlap. Only the outer meltblown cloth filter layer 33 and the active adsorption component 32 are in contact with water. The contact area is reduced, the evaporation rate is reduced, and the amount of mist is significantly reduced.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A humidifier filter element assembly with adjustable mist output, comprising an upper cover assembly (1) and a lower end cover (2) disposed below it, characterized in that, Also includes: The filter assembly (3) is detachably set between the upper cover assembly (1) and the lower end cover (2) to intercept impurities in the water and adsorb odors, so as to ensure that the humidified water mist is clean and odorless. It can also flexibly adjust its own evaporation area according to the air dryness and control the amount of mist output to adjust the air humidity to meet the human comfort level. The radial expansion drive component (4) is located inside the filter component (3). When the filter component (3) is adjusted downward, it automatically drives the filter component (3) to complete radial expansion, thereby increasing the evaporation area of ​​the filter component (3) and increasing the amount of water mist evaporation. When the filter component (3) is adjusted upward, it automatically releases the radial expansion force on the filter component (3) to promote the filter component (3) to quickly return to its original state and reduce the amount of water mist evaporation.

2. The humidifier filter element assembly with adjustable mist output according to claim 1, characterized in that: The filter assembly (3) includes a support cylinder assembly (31). An active adsorption assembly (32) for adsorbing odors in water mist is sleeved on the outside of the support cylinder assembly (31). A meltblown cloth filter layer (33) for preliminary filtration of water is also fixedly sleeved on the outside of the active adsorption assembly (32). Multiple guide rails (34) are uniformly fixed on the inner wall of the support cylinder assembly (31). A mist volume adjustment assembly (35) for adjusting the mist output is slidably sleeved on the outer wall of the multiple guide rails (34). The support cylinder assembly (31) includes a support cylinder frame (311), on the outer wall of which a plurality of clearance slots (312) for water mist to pass through are evenly provided.

3. A humidifier filter element assembly with adjustable mist output according to claim 2, characterized in that: The active adsorption component (32) includes a support cylinder (321), on which a plurality of clearance through holes (322) are uniformly opened on the outer wall, and a hollow cavity is opened inside the support cylinder (321). Activated carbon particles are disposed in the hollow cavity, and a sealing plate is detachably installed on the top of the hollow cavity by bolts to facilitate the replacement of activated carbon particles.

4. A humidifier filter element assembly with adjustable mist output according to claim 2, characterized in that: The mist volume regulating component (35) includes multiple longitudinally stacked fiber evaporation layers (351) arranged in a ring array. Adjacent longitudinally stacked fiber evaporation layers (351) are fixedly connected by transversely stacked fiber evaporation layers (352). Silicone sealing rings (353) are fixedly provided at the top and bottom of the multiple longitudinally stacked fiber evaporation layers (351) and transversely stacked fiber evaporation layers (352). Multiple sliding sleeves (354) are evenly fixed around the outer wall of the upper silicone sealing ring (353). Each sliding sleeve (354) is correspondingly slidably fitted onto the outer wall of one of the guide rails (34). The lower silicone sealing ring (353)... 3) Multiple elastic rubber support arms (3510) are uniformly fixed at the bottom. The ends of the multiple elastic rubber support arms (3510) are all fixedly provided with threaded sleeves. A screw (355) is connected to the threaded sleeve. A knob (356) is fixedly provided at the top of the screw (355). A pointer (357) for indicating the height of the silicone sealing ring (353) is fixedly provided at the top of the knob (356). A drive disk (358) is fixedly sleeved on the outer wall of the screw (355) and below the elastic rubber support arms (3510). Arc-shaped wedge blocks (359) are symmetrically fixed on both sides of the bottom of the drive disk (358).

5. A humidifier filter element assembly with adjustable mist output according to claim 1, characterized in that: The radial expansion drive assembly (4) includes an upper expansion unit (41) and a lower expansion unit (42) arranged sequentially from top to bottom. Multiple hollow tubes (43) are uniformly fixed on the inner walls of the upper expansion unit (41) and the lower expansion unit (42). A gas forming assembly (44) is arranged between the multiple hollow tubes (43). The gas forming assembly (44) and the multiple hollow tubes (43) are connected by conduits (45). The gas output from the gas forming assembly (44) enters the multiple hollow tubes (43) through multiple conduits (45) and enters the upper expansion unit (41) and the lower expansion unit (42) in sequence to complete the inflation work.

6. A humidifier filter element assembly with adjustable mist output according to claim 5, characterized in that: The gas forming assembly (44) includes an air cylinder (441) fixedly disposed inside the lower end cover (2). An annular lifting plate (442) is slidably disposed inside the air cylinder (441). Two protrusions (443) are symmetrically fixedly disposed on both sides of the top of the annular lifting plate (442). A plurality of springs (444) are uniformly fixedly disposed between the bottom of the annular lifting plate (442) and the bottom of the inner cavity of the air cylinder (441).

7. A humidifier filter element assembly with adjustable mist output according to claim 6, characterized in that: The upper expansion unit (41) is identical in structure except that its radius is smaller than that of the lower expansion unit (42). The upper expansion unit (41) includes an annular frame (411). The outer wall of the annular frame (411) is recessed inward to form an annular groove. An airbag (412) is fixedly installed in the annular groove. The airbag (412) and multiple hollow tubes (43) are connected by branch pipes.

8. A humidifier filter element assembly with adjustable mist output according to claim 1, characterized in that: The upper cover assembly (1) includes an upper cover (101). The upper cover (101) has a first adjustment mark (102) and a second adjustment mark (103) symmetrically fixed on both sides of its top, which respectively represent the water mist volume reduction mark and the water mist volume increase mark. When the pointer (357) turns counterclockwise from the state pointing to the second adjustment mark (103) to the first adjustment mark (102), the mist output gradually decreases from the maximum to the minimum.

9. A humidifier filter element assembly with adjustable mist output according to claim 4, characterized in that: Both the longitudinally stacked fiber evaporation layer (351) and the transversely stacked fiber evaporation layer (352) are woven from nano-silver modified polyester fibers, and the wavy inner walls of both evaporation layers are integrally formed with multiple micron-level protrusions. The micron-level protrusions are hemispherical and are used to form turbulent disturbances during the expansion or contraction of the evaporation layer, thereby enhancing the contact efficiency between airflow and moisture.

10. A method of using a humidifier filter element assembly with adjustable mist output, for use in the humidifier filter element assembly with adjustable mist output as described in any one of claims 1-9, characterized in that: The method includes the following steps: Step 1, Initial standby state: The upper cover assembly (1) and the lower end cover (2) are aligned to form an installation cavity. The filter assembly (3) is detachably assembled into this cavity. At this time, the filter assembly (3) is in its original contracted state, with the evaporation area being the smallest. The radial expansion drive assembly (4) is located inside the filter assembly (3) and no radial expansion force is applied. The entire device maintains a small amount of mist output in standby mode. Only a small amount of water mist evaporates through the basic filtration area of ​​the filter assembly (3) to maintain the basic air humidity. Step 2, Increase mist output operation: When it is necessary to increase air humidity, manually adjust the bottom position of the filter component (3) downward; at this time, the filter component (3) triggers the internal radial expansion drive component (4), which automatically starts and applies radial expansion force to the filter component (3), pushing the filter component (3) to extend radially outward, and its evaporation area increases significantly; at the same time, the filtration and adsorption functions of the filter component (3) continue to be effective, intercepting impurities and adsorbing odors, and the clean water mist evaporates quickly through the expanded evaporation surface, greatly increasing the mist output and accelerating the increase of air humidity; Step 3, Reduce mist output: When the air humidity reaches the human comfort range or the mist output needs to be reduced, manually adjust the bottom position of the filter component (3) upward; after the radial expansion drive component (4) senses the upward movement of the filter component (3), it automatically releases the radial expansion force on the filter component (3); under the action of its own structural reset characteristics, the filter component (3) quickly shrinks to its original state, the evaporation area is restored to the minimum, the water mist evaporation is reduced accordingly, the mist output is reduced, the air humidity is avoided to be too high, and the humidity balance is maintained.

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