Humidifier

Abstract

The humidifier comprises a water tank, a water pump, an anode, a cathode and a power source assembly, the water pump and the cathode are located in the water tank, the water pump is provided with a water inlet, the anode is installed at the water inlet of the water pump, and the two electrodes of the power source assembly are connected with the anode and the cathode respectively. The surface scaling potential of main humidifying parts in the humidifier is low, and water quality is safe.

Description

Technical Field

[0001] The present disclosure relates to the field of household appliances, and in particular to a humidifier. Background Art

[0002] The working principle of a humidifier is to wet the filter element with water, and when the wind blows through the filter element, it can take away the moisture in the filter element and its surroundings, thereby increasing the humidity of the air. During the use of the humidifier, as the water circulates and concentrates continuously, scale may be deposited on the filter element, resulting in a decrease in the filter element's filtering function, and may also cause odor in the ambient air.

[0003] In the related art, it is generally necessary to add antiscaling agents or disinfectants to the water to overcome the above problems.

[0004] However, adding the above-mentioned agents to water can easily cause the water and the humidified air to have odors, thereby reducing the user experience. Utility Model Content

[0005] In view of this, the present disclosure provides a humidifier, in which the scaling potential of the surface of the main humidifying components inside is low and the water quality is relatively safe.

[0006] Specifically, the following technical solutions are included:

[0007] The present disclosure provides a humidifier, comprising a water tank, a water pump, an anode, a cathode and a power supply assembly, wherein the water pump and the cathode are located in the water tank, the water pump has a water inlet, the anode is installed at the water inlet of the water pump, and the two poles of the power supply assembly are respectively connected to the anode and the cathode.

[0008] Optionally, the humidifier further includes a filter element assembly and a support structure, the support structure supports the filter element assembly, the filter element assembly has a first water outlet, and the support structure has a guide structure, the guide structure guides water flowing out of the first water outlet.

[0009] Optionally, the cathode is mounted on the support structure and is at least partially located on the flow guiding path of the flow guiding structure.

[0010] Optionally, the filter element assembly includes a filter element and a first mounting member, the filter element is mounted on the first mounting member, the first mounting member is mounted on the support structure, and the first water outlet is provided on the first mounting member.

[0011] Optionally, the number of the first water outlets is one or more, the number of the guide structures is one or more, the orthographic projection of the first end of each of the guide structures at the bottom of the water tank covers the orthographic projection of at least one of the first water outlets at the bottom of the water tank, and the first end of the guide structure is an end close to the filter element assembly.

[0012] Optionally, the guide structure is a groove-like structure or a hole-like structure gradually approaching the bottom of the water tank.

[0013] Optionally, at least part of the cathode is located in the flow-conducting structure.

[0014] Optionally, the cathode and the anode are located in the same plane, and the distance between the cathode and the anode is greater than a first threshold; or, the cathode and the anode are in different planes, the plane where the cathode is located is not parallel to the plane where the anode is located, the distance between the cathode and the anode is greater than a second threshold, and the second threshold is less than the first threshold.

[0015] Optionally, the cathode is arranged perpendicular to the anode.

[0016] Optionally, the center distance between the cathode and the anode is greater than or equal to 2 cm, and / or the distance between the cathode and the closest point to the anode is greater than or equal to 5 mm.

[0017] Optionally, the orthographic projection of the cathode on the bottom of the water tank does not overlap with the orthographic projection of the anode on the bottom of the water tank.

[0018] Optionally, the surface area of ​​the cathode is greater than or equal to the surface area of ​​the anode.

[0019] Optionally, the support structure includes a first bearing structure and a cylindrical structure, the first bearing structure has an installation position, the filter element assembly is installed at the installation position, the cylindrical structure extends from the first bearing structure to near the bottom of the water tank, and the number of the guide structures is multiple and arranged around the cylindrical structure.

[0020] Optionally, the cathode has a shape including a ring or a sector surrounding the cylindrical structure.

[0021] Optionally, the flow guide structure is connected to the wall of the cylindrical structure, the wall of the cylindrical structure has a flow guide opening, the orthographic projection of the flow guide structure on the wall of the cylindrical structure covers the flow guide opening, and the flow guide opening connects the flow guide structure with the hollow space of the cylindrical structure.

[0022] Optionally, the flow guiding structure extends inwardly and downwardly from the first bearing structure until it is connected with the hollow space of the cylindrical structure through the flow guiding opening.

[0023] Optionally, the filter element assembly also includes a second water distribution structure, which is located on the filter element, and includes an upper water inlet, a water distribution trough and a second lower water inlet, the upper water inlet is connected to the water distribution trough, the water distribution trough has an overflow structure, and the overflow structure is configured to divert water in the water distribution trough to the second lower water inlet, and the second lower water inlet is connected to the filter element.

[0024] Optionally, the second drain port is located outside the water balancing trough, and the overflow structure is at least one overflow port on a trough wall of the water balancing trough close to the second drain port; or, the overflow structure is a target trough wall among the two trough walls of the water balancing trough, and the target trough wall is close to the second drain port and has a lower height than the other trough wall; or

[0025] The overflow structure is a plurality of sleeve structures penetrating the bottom of the water balancing trough, the hollow channel of the sleeve structure is the second water outlet, the height of the plurality of sleeve structures is higher than the bottom of the water balancing trough, and the height of the plurality of sleeve structures is equal.

[0026] Optionally, the shape of the overflow outlet includes at least one of a rectangle, a circle, a trapezoid, a triangle, a fan, a rhombus, a pentagon or n deformations, wherein n is a positive integer greater than or equal to 6.

[0027] Optionally, the anode is a mesh electrode or a sheet electrode with a plurality of through holes, and / or the cathode is any one of a block electrode, a rectangular electrode, a ring electrode, a U-shaped electrode or an arc electrode.

[0028] The disclosed embodiment provides a humidifier, which includes a power supply component, an anode and a cathode. The two poles of the power supply component are respectively connected to the anode and the cathode, and can provide a voltage difference between the anode and the cathode. The anode is installed at the water inlet of the water pump, and the cathode is located in the water tank. Driven by the power supply component, the power supply component, the anode and the cathode can be connected with the help of water to form a current loop. With the help of this current loop, the anode can sterilize the water passing through the water inlet of the water pump, and the cathode can attract the metal cations in the water to precipitate on the surface of the cathode, so that scale is not easy to deposit on the surface of the water tank and other components of the humidifier, the water quality of the water in the water tank is good, there is no odor and other problems, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1A cross-sectional view of a humidifier provided in an embodiment of the present disclosure;

[0031] Figure 2 A schematic diagram of a partial structure of a humidifier provided in an embodiment of the present disclosure;

[0032] Figure 3 A schematic structural diagram of a filter element assembly in a humidifier provided in an embodiment of the present disclosure;

[0033] Figure 4 An exploded schematic diagram of a filter element assembly in a humidifier provided in an embodiment of the present disclosure;

[0034] Figure 5 A schematic diagram of a second water equalization structure in a humidifier provided in an embodiment of the present disclosure;

[0035] Figure 6 A partial structural schematic diagram of a second water equalization structure in a humidifier provided in an embodiment of the present disclosure;

[0036] Figure 7 A schematic diagram of a second water distribution structure of another filter element assembly in a humidifier provided in an embodiment of the present disclosure.

[0037] The reference numerals in the figures represent respectively:

[0038] 1- Water tank;

[0039] 2-water pump; 21-water inlet;

[0040] 3- anode;

[0041] 4- cathode;

[0042] 5- Power supply assembly;

[0043] 6-filter element assembly; 61-first water outlet; 62-filter element; 63-first mounting member; 64-second water distribution structure; 641-water inlet; 642-water distribution tank; 6421-overflow structure; x-overflow port; y-target tank wall; 643-second water outlet; z-sleeve structure;

[0044] 7-bracket structure; 71-flow guide structure; 72-first bearing structure; 721-installation position; 73-cylindrical structure; 731-water outlet; 732-flow guide opening.

[0045] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0047] The directional nouns involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., are generally based on the relative directional relationship between the structures when the humidifier is usually arranged, and these directional nouns are used only to more clearly describe the relationship between the structures, not to describe the absolute direction. When the humidifier is placed in different postures, the direction may change, for example, "upper" and "lower" may be interchangeable.

[0048] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.

[0049] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0050] In the humidifier, as the water evaporates continuously, a series of processes occur in the water, including ion accumulation, water phase change, precipitation-dissolution equilibrium, etc. The main scaling reaction during the evaporation process is (where K sp is the solubility product):

[0051] Ca 2+ + CO3 2- = CaCO3 K sp = 4.9*10 -9 (1)

[0052] Mg 2+ + CO3 2- = MgCO3 K sp = 6.8*10 -6 (2)

[0053] Ca 2+ + SO4 2- = CaSO4 K sp = 7.1*10 -5 (3)

[0054] It can be seen that the precipitation-dissolution equilibrium is closely related to the concentration and type of ions. According to the dissolution equilibrium constants of various major precipitations, calcium carbonate is the most important precipitation type, followed by magnesium carbonate. There is a difference of 3 orders of magnitude between the two, which is crucial for the control of carbonate. The main sources of carbonate in water are, on the one hand, the original carbonate in the water source, and on the other hand, the CO2 in the air dissolves into the water. The equilibrium equation of carbonic acid in water is as follows:

[0055] CO2 + H2O = H2CO3 = H + + HCO3 - = 2H + + CO3 2- (4)

[0056] After carbon dioxide is dissolved in water, the continuous dissociation of carbonic acid is the key factor in increasing the concentration of carbonate ions in the water, which further leads to the precipitation of carbonate on calcium ions. According to the above-mentioned precipitation equilibrium principle, factors such as the pH (H+ concentration) of the solution will also lead to changes in the form of carbonate and ultimately determine the yield of carbonate precipitation.

[0057] In summary, the concentration of calcium and magnesium ions, the total carbonate concentration, and the pH value in the solution all have an important influence on the precipitation process of calcium carbonate and magnesium carbonate in the solution. In order to control the precipitation of calcium carbonate and magnesium carbonate in water and avoid scale deposition in the humidifier, the embodiment of the present disclosure provides a humidifier.

[0058] refer to Figure 1-2 The humidifier includes a water tank 1, a water pump 2, an anode 3, a cathode 4 and a power supply assembly 5. The water pump 2 and the cathode 4 are located in the water tank 1. The water pump 2 has a water inlet 21. The anode 3 is installed at the water inlet 21 of the water pump 2. The two poles of the power supply assembly 5 are connected to the anode 3 and the cathode 4 respectively.

[0059] In the disclosed embodiment, the cathode is located in the water tank. When the power supply component applies a positive voltage between the anode and the cathode, the anode and the cathode are connected through the water in the water tank. An electric field can be formed on and near the cathode surface, attracting positive ions (such as calcium ions or magnesium ions) in the water to move toward the cathode. At the same time, an alkali reaction occurs on the cathode surface, promoting the deposition and scaling of positive ions in the water on the cathode surface, and reducing the overall scaling potential of the water in the water tank. The anode is installed at the water inlet of the water pump. An electric field will be formed on the anode surface and its vicinity. The bacteria in the water migrate to the anode surface under the action of the electric field, and electroporation occurs under the action of the local strong electric field on the anode surface, and eventually the cell membrane ruptures and dies; the anode can also produce oxidizing species, oxidize and inactivate the bacteria, and sterilize and disinfect the water in the water tank. In addition, the anode surface can also undergo an acid-producing reaction, so that the pH of the water entering the water pump becomes acidic, reducing the scaling potential of the water entering the water, inhibiting the precipitation of calcium and magnesium ions in the water, and avoiding scaling on the water pump impeller and the filter element in the humidifier (described in detail below).

[0060] In addition, it should be noted that the anode is installed at the water inlet of the water pump, but it does not block water from entering the water pump. Optionally, the anode is a porous sheet structure, so that when the water in the water tank enters the water pump, the anode can form an effect similar to that of an anion exchange membrane, that is, it repels cations so that they cannot pass through, and attracts anions so that they pass through, which can prevent some cations (such as calcium and magnesium ions) from entering the next water cycle (such as wetting the filter element and recycling residual water, etc.), further reducing the scaling potential of the water pump and the filter element.

[0061] In summary, the embodiments of the present disclosure provide a humidifier, which includes a power supply component, an anode and a cathode. The two poles of the power supply component are respectively connected to the anode and the cathode, and can provide a voltage difference between the anode and the cathode. The anode is installed at the water inlet of the water pump, and the cathode is located in the water tank. Driven by the power supply component, the power supply component, the anode and the cathode can be connected with the help of water to form a current loop. With the help of this current loop, the anode can sterilize the water passing through the water inlet of the water pump, and the cathode can attract the metal cations in the water to precipitate on the surface of the cathode, so that scale is not easy to deposit on the surface of the water tank and other components of the humidifier, the water quality of the water in the water tank is better, there is no odor and other problems, and the user experience is better.

[0062] In some embodiments, reference Figure 1-4 The humidifier further includes a filter element assembly 6 and a support structure 7 , the support structure 7 supports the filter element assembly 6 , the filter element assembly 6 has a first water outlet 61 , the support structure 7 has a guide structure 71 , and the guide structure 71 guides water flowing out of the first water outlet 61 .

[0063] In this embodiment, the support structure can support the filter element assembly, thereby ensuring the installation stability of the filter element assembly. At the same time, the residual water of the filter element assembly (water that is not effectively used and drips) will also fall on the support structure through the first water outlet, and the guide structure of the support structure can guide the water flowing out of the first water outlet, so that the residual water is recovered according to a predetermined path, avoiding the residual water from directly dripping into the water tank to generate noise.

[0064] Optional, reference Figure 2 The cathode 4 is mounted on the support structure 7 and is at least partially located on the flow guiding path of the flow guiding structure 71 .

[0065] Based on the above settings, it can be effectively ensured that the cathode performs targeted descaling on the residual water recovered from the filter element assembly (due to concentration by the filter element assembly, the concentration of various ions in the residual water here is generally high), thereby reducing the scaling potential of the water in the next water cycle.

[0066] Optional, reference Figure 1 and Figure 3-4 The filter element assembly 6 includes a filter element 62 and a first mounting member 63 . The filter element 62 is mounted on the first mounting member 63 . The first mounting member 63 is mounted on the support structure 7 . The first water outlet 61 is provided on the first mounting member 63 .

[0067] Based on the above arrangement, it can be ensured that the filter element and the support structure are connected and installed to each other through the first mounting member. If the filter element needs to be replaced later, the filter element can be easily replaced or repaired by removing the filter element from the first mounting member or removing the first mounting member from the support structure.

[0068] Optional, reference Figure 2 and Figure 4 The number of the first water outlets 61 is one or more, the number of the guide structures 71 is one or more, the orthographic projection of the first end of each guide structure 71 at the bottom of the water tank 1 covers the orthographic projection of at least one first water outlet 61 at the bottom of the water tank 1, and the first end of the guide structure 71 is the end close to the filter element assembly 6.

[0069] Based on the above arrangement, it can be ensured that the guide structure has a better collection effect on the water flowing down from the first water outlet, and the noise of the humidifier is ensured to be low.

[0070] Optional, reference Figure 2 The flow guiding structure 71 is a groove-shaped structure or a hole-shaped structure gradually approaching the bottom of the water tank 1 .

[0071] Based on the above arrangement, it can be ensured that the remaining water in the filter element assembly is diverted to a position close to the bottom of the water tank, where the remaining water can be smoothly diverted to merge with the water in the water tank without dripping on the water surface in the water tank and causing noise.

[0072] Optionally, at least part of the cathode 4 is located in the flow-guiding structure 71. That is, at least part of the cathode is located in the aforementioned groove-shaped structure or hole-shaped structure, which can improve the scale reduction effect of the cathode on the residual water.

[0073] In some embodiments, the cathode 4 and the anode 3 are located in the same plane, and the distance between the cathode 4 and the anode 3 is greater than a first threshold; or, the cathode 4 and the anode 3 are located in different planes, the plane where the cathode 4 is located is not parallel to the plane where the anode 3 is located, the distance between the cathode 4 and the anode 3 is greater than a second threshold, and the second threshold is less than the first threshold.

[0074] Since the cathode and the anode produce different reaction zones respectively, if the two reaction zones are close to each other, various substances in the reaction zone may be neutralized, reducing the work efficiency of the cathode and the anode. Based on the above arrangement, if the anode and the cathode are arranged in the same plane, the distance between the two needs to be greater than the first threshold value to ensure that the two reaction zones have less mutual influence, and the first threshold value can be obtained through experimental calibration. Optionally, the range of the first threshold value can be between 2cm-3cm, for example, 2cm. If the anode and the cathode are in different planes, the two reaction zones can be relatively separated, and at this time the distance between the cathode and the anode can be greater than the second threshold value, and the second threshold value can be determined comprehensively according to the distance between the anode and the cathode plane. Optionally, the second threshold value can be 1.5cm. In addition, by setting the plane where the cathode is located to be non-parallel to the plane where the anode is located, the two reaction zones can be further made relatively independent, reducing the mutual influence between the two.

[0075] Optionally, the cathode 4 is arranged perpendicular to the anode 3. This can further ensure that the interference between the two reaction zones is small. It is easy to understand that at this time, the distance requirement between the anode and the cathode can be reduced, which is conducive to improving the space utilization efficiency of the humidifier. Of course, if the internal space of the humidifier is sufficient, the planes where the anode and the cathode are located can also be parallel to each other, and it is only necessary to ensure that the anode and the cathode are far away from each other without obvious interference, and the present disclosure does not strictly limit this.

[0076] It should be noted that in the drawings of the present disclosure, the cathode and the anode are in different planes, and the angle between the two planes is relatively small. Those skilled in the art can clearly understand based on the drawings and the contents of the embodiments that a larger angle, such as 60 degrees, 45 degrees, etc., can be formed between the planes where the anode and the cathode are located.

[0077] In some embodiments, the center distance between cathode 4 and anode 3 is greater than or equal to 2 cm, and / or the distance between the closest points of cathode 4 and anode 3 is greater than or equal to 5 mm.

[0078] Based on the above arrangement, it can be ensured that the interference between the respective reaction zones of the anode and the cathode is small, thereby meeting the respective working efficiency requirements of the anode and the cathode.

[0079] In some embodiments, reference Figure 1-2 , the orthographic projection of the cathode 4 at the bottom of the water tank 1 does not overlap with the orthographic projection of the anode 3 at the bottom of the water tank 1 .

[0080] Since the cathode will form scale deposits on its surface after working for a long time, the above position limitation can ensure that even if the scale on the cathode surface falls off, it is not easy to enter the water pump through the anode, which is beneficial to prolong the service life of the water pump.

[0081] In some embodiments, the surface area of ​​the cathode 4 is greater than or equal to the surface area of ​​the anode 3. Based on this, it can be ensured that the working efficiency of the anode and the cathode is equivalent. When the cathode surface area is larger, more scale can be deposited, which is conducive to increasing the effective working time of the humidifier.

[0082] In some embodiments, reference Figure 2 The support structure 7 includes a first bearing structure 72 and a cylindrical structure 73. The first bearing structure 72 has a mounting position 721. The filter element assembly 6 is installed at the mounting position 721. The cylindrical structure 73 extends from the first bearing structure 72 to the bottom of the water tank 1. There are multiple guide structures 71, which are arranged around the cylindrical structure 73.

[0083] In this embodiment, the mounting position on the first bearing structure of the support structure can facilitate the stable installation of the filter element assembly in the humidifier. Optionally, the mounting position is an annular groove structure. The cylindrical structure can serve as the overall supporting structure of the support structure to ensure the overall stability and supporting capacity of the support structure. There are multiple guide structures and they are arranged around the cylindrical structure, which means that the collection of residual water can be at least partially located on the periphery of the cylindrical structure, so that the volume occupied by the cylindrical structure can be smaller, the space utilization efficiency in the water tank is higher, and the efficiency of residual water collection is higher.

[0084] Optionally, the shape of the cathode 4 includes a ring or a sector around the cylindrical structure 73. Setting the cathode to a ring or a sector can ensure a more uniform electric field distribution between the anode and the cathode, a more uniform scale deposition rate at various locations in the water tank, and a more stable open circuit voltage, thereby reducing the energy consumption of the entire machine.

[0085] Optional, reference Figure 1-2 The cylindrical structure 73 has a water outlet 731 , and the water pump 2 is at least partially installed in the cylindrical structure 73 . The water outlet 731 connects the water pump 2 with the water tank 1 .

[0086] Based on the above settings, the water pump can be protected to a certain extent by the cylindrical structure, and the space occupied by the cylindrical structure can be reused, thereby improving the space utilization efficiency within the humidifier and reducing the volume of the humidifier. At the same time, the water outlet can ensure the connectivity between the water inlet of the water pump and the water tank, thereby ensuring the driving efficiency of the water pump for water circulation.

[0087] Optional, reference Figure 1-2 The flow guiding structure 71 is connected to the wall surface of the cylindrical structure 73 . The wall surface of the cylindrical structure 73 has a flow guiding opening 732 . The orthographic projection of the flow guiding structure 71 on the wall surface of the cylindrical structure 73 covers the flow guiding opening 732 . The flow guiding opening 732 connects the flow guiding structure 71 with the hollow space of the cylindrical structure 73 .

[0088] Based on the above arrangement, it can be ensured that the diverted water of the diverting structure 71 can directly enter the hollow space of the cylindrical structure through the diverting opening, thereby avoiding the situation where the residual water cannot flow down smoothly when there is a lot of residual water.

[0089] Optional, reference Figure 2 The flow guiding structure 71 extends inwardly and downwardly from the first supporting structure 72 until it is connected with the hollow space of the cylindrical structure 73 through the flow guiding opening 732 .

[0090] It should be noted that the "inside" here refers to the part close to the central axis of the humidifier as the inside, and the part away from the central axis of the humidifier as the outside; and the "bottom" refers to the part close to the ground or close to the bottom of the water tank as the bottom, and the part away from the ground or away from the bottom of the water tank as the top.

[0091] Based on the above arrangement, it can be ensured that the diversion structure will divert the remaining water directly into the hollow space of the cylindrical structure, and the remaining water will smoothly enter the next water cycle together with the water in the cylindrical structure.

[0092] In some embodiments, reference Figure 3-4 The filter element assembly 6 also includes a second water distribution structure 64, which is located on the filter element 62. The second water distribution structure 64 includes an upper water inlet 641, a water distribution trough 642 and a second lower water inlet 643. The upper water inlet 641 is connected to the water distribution trough 642. The water distribution trough 642 has an overflow structure 6421. The overflow structure 6421 is configured to divert the water in the water distribution trough 642 to the second lower water inlet 643. The second lower water inlet 643 is connected to the filter element 62.

[0093] In this embodiment, the second water equalization structure can cause the upper water to accumulate in the water equalization tank until the water level reaches the overflow level of the overflow structure, and at the same time, it flows from the second drain port to the filter element. This can avoid the situation where the filter element is wetter near the upper water port and drier away from the upper water port (in this case, the lower water from different drain ports is more likely to come into contact with the air and is more likely to deposit), thereby reducing the probability of scale deposition on the filter element.

[0094] Optional, reference Figure 5 and Figure 6, the second drain port 643 is located outside the water balancing trough 642, and the overflow structure 6421 is at least one overflow port x on a trough wall of the water balancing trough 642 close to the second drain port 643; or, the overflow structure 6421 is a target trough wall y of the two trough walls of the water balancing trough 642, and the target trough wall y is close to the second drain port 643 and has a height lower than the other trough wall; or

[0095] refer to Figure 7 The overflow structure 6421 is a plurality of sleeve structures z that penetrate the bottom of the water balancing trough 642, the hollow channel of the sleeve structure z is the second water outlet 643, the heights of the plurality of sleeve structures z are higher than the bottom of the water balancing trough 642, and the heights of the plurality of sleeve structures z are equal.

[0096] Figure 6 Several schematic overflow structure design schemes are shown in FIG. 1 . In these schemes, when the water in the water balancing tank reaches the overflow level, the water overflows to the second drain located outside the water balancing tank. Figure 7 In the overflow structure design shown, when the water level in the water balancing tank reaches the height of the sleeve structure, it can overflow to the second drain port located in the water balancing tank. The above schemes can all achieve the effect of reducing scaling on the filter element. Based on the above schemes, those skilled in the art can also conceive more similar schemes, which will not be elaborated in detail in this disclosure.

[0097] Optionally, the shape of the overflow port x includes at least one of a rectangle, a circle, a trapezoid, a triangle, a sector, a rhombus, a pentagon, or n variations, wherein n is a positive integer greater than or equal to 6. Some exemplary overflow port shapes are given here, and those skilled in the art may also adopt more other shapes according to actual needs.

[0098] Optionally, the anode 3 is a mesh electrode or a sheet electrode with a plurality of through holes, and / or the cathode 4 is any one of a block electrode, a rectangular electrode, a ring electrode, a U-shaped electrode or an arc electrode.

[0099] The above electrode shapes are only some optional designs. In practical applications, those skilled in the art can also select other shapes according to needs, and appropriately adjust the arrangement position and arrangement distance of the anode and cathode. Among them, the arrangement distance between the anode and the cathode can be appropriately larger to ensure the overall scale reduction effect; the relative area of ​​the anode can be as small as possible.

[0100] Optionally, the anode may be a coated titanium electrode, and the cathode may be an electrode made of a metal material such as stainless steel or titanium.

[0101] In summary, the embodiment of the present disclosure provides a humidifier, which can improve the uniformity of water wetting the filter element with the help of the second water-distributing structure and reduce the probability of scaling on the surface of the filter element. On the other hand, the concentration of calcium and magnesium ions in the aqueous solution can be reduced by means of the electric field effect of the anode and the cathode, and the scaling potential of the aqueous solution on the surface of the filter element can be reduced. The anode can also kill bacteria in the water and make the local pH of the anode acidic, thereby improving the safety of the water quality; in addition, more effective water quality control can be achieved by flexibly adjusting the voltage or current between the anode and the cathode. On the third hand, the anode is located at the water inlet of the water pump, and when the water pump is working, the water in the water tank can be forced to pass through the anode and reach the filter element, that is, the anode acts as a penetrating electrode; the residual water after evaporation from the filter element returns to the water tank, and after being treated by the cathode, it is forced to pass through the anode again under the action of the water pump to enter the next cycle, that is, the direction of the flow field can be coordinated with the electrodes with the help of the water pump, effectively improving the water treatment efficiency of the electrodes, improving the water quality, and reducing the probability of scale deposition on the filter element. The above three aspects can change the types and concentrations of reactants in water from different angles, and with the help of the coordination between the flow field and the electric field, effectively prevent the ion concentration from reaching the deposition point and reduce the scaling potential in the humidifier.

[0102] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

[0103] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.

[0104] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A humidifier, characterized in that: The invention comprises a water tank (1), a water pump (2), an anode (3), a cathode (4) and a power supply assembly (5); the water pump (2) and the cathode (4) are located in the water tank (1); the water pump (2) has a water inlet (21); the anode (3) is installed at the water inlet (21) of the water pump (2); and two poles of the power supply assembly (5) are respectively connected to the anode (3) and the cathode (4).

2. The humidifier according to claim 1, characterized in that The humidifier further comprises a filter element assembly (6) and a support structure (7), wherein the support structure (7) supports the filter element assembly (6), the filter element assembly (6) has a first water outlet (61), and the support structure (7) has a flow guide structure (71), wherein the flow guide structure (71) guides water flowing out of the first water outlet (61).

3. The humidifier according to claim 2, characterized in that The cathode (4) is mounted on the support structure (7) and is at least partially located on the flow guiding path of the flow guiding structure (71).

4. The humidifier according to claim 2, characterized in that: The filter element assembly (6) comprises a filter element (62) and a first mounting member (63), the filter element (62) being mounted on the first mounting member (63), the first mounting member (63) being mounted on the support structure (7), and the first water outlet (61) being provided on the first mounting member (63).

5. The humidifier according to claim 2, characterized in that: The number of the first water outlets (61) is one or more, the number of the flow-guiding structures (71) is one or more, the orthographic projection of the first end of each of the flow-guiding structures (71) at the bottom of the water tank (1) covers the orthographic projection of at least one of the first water outlets (61) at the bottom of the water tank (1), and the first end of the flow-guiding structure (71) is an end close to the filter element assembly (6).

6. The humidifier according to any one of claims 2 to 5, characterized in that: The flow-guiding structure (71) is a groove-shaped structure or a hole-shaped structure that gradually approaches the bottom of the water tank (1).

7. The humidifier according to claim 6, characterized in that At least a portion of the cathode (4) is located in the flow-conducting structure (71).

8. The humidifier according to any one of claims 1 to 5 and 7, characterized in that: The cathode (4) and the anode (3) are located in the same plane, and the distance between the cathode (4) and the anode (3) is greater than a first threshold value; or, the cathode (4) and the anode (3) are located in different planes, the plane where the cathode (4) is located is not parallel to the plane where the anode (3) is located, and the distance between the cathode (4) and the anode (3) is greater than a second threshold value, and the second threshold value is less than the first threshold value.

9. The humidifier according to claim 8, characterized in that The cathode (4) is arranged perpendicular to the anode (3).

10. The humidifier according to any one of claims 1 to 5 and 7, characterized in that: The center distance between the cathode (4) and the anode (3) is greater than or equal to 2 cm, and / or the distance between the closest points of the cathode (4) and the anode (3) is greater than or equal to 5 mm.

11. The humidifier according to any one of claims 1 to 5 and 7, characterized in that: The orthographic projection of the cathode (4) at the bottom of the water tank (1) does not overlap with the orthographic projection of the anode (3) at the bottom of the water tank (1).

12. The humidifier according to any one of claims 1 to 5 and 7, characterized in that: The surface area of ​​the cathode (4) is greater than or equal to the surface area of ​​the anode (3).

13. The humidifier according to any one of claims 2 to 5 and 7, characterized in that: The support structure (7) comprises a first bearing structure (72) and a cylindrical structure (73); the first bearing structure (72) has a mounting position (721); the filter element assembly (6) is mounted on the mounting position (721); the cylindrical structure (73) extends from the first bearing structure (72) to a position close to the bottom of the water tank (1); and the flow guide structures (71) are multiple in number and are arranged around the cylindrical structure (73).

14. The humidifier according to claim 13, characterized in that The cathode (4) has a shape including a ring or a sector surrounding the cylindrical structure (73).

15. The humidifier according to claim 13, characterized in that The flow-guiding structure (71) is connected to the wall surface of the cylindrical structure (73); the wall surface of the cylindrical structure (73) has a flow-guiding opening (732); the orthographic projection of the flow-guiding structure (71) on the wall surface of the cylindrical structure (73) covers the flow-guiding opening (732); and the flow-guiding opening (732) connects the flow-guiding structure (71) with the hollow space of the cylindrical structure (73).

16. The humidifier according to claim 15, characterized in that The flow guiding structure (71) extends inwardly and downwardly from the first bearing structure (72) until it is connected with the hollow space of the cylindrical structure (73) through the flow guiding opening (732).

17. The humidifier according to any one of claims 2-5, 7 and 14-16, characterized in that: The filter element assembly (6) also includes a second water distribution structure (64), which is located on the filter element (62). The second water distribution structure (64) includes an upper water inlet (641), a water distribution trough (642) and a second lower water inlet (643). The upper water inlet (641) is connected to the water distribution trough (642). The water distribution trough (642) has an overflow structure (6421). The overflow structure (6421) is configured to guide the water in the water distribution trough (642) to the second lower water inlet (643). The second lower water inlet (643) is connected to the filter element (62).

18. The humidifier according to claim 17, characterized in that The second water outlet (643) is located outside the water balancing trough (642), and the overflow structure (6421) is at least one overflow outlet (x) on a trough wall of the water balancing trough (642) close to the second water outlet (643); or, the overflow structure (6421) is a target trough wall (y) of the two trough walls of the water balancing trough (642), and the target trough wall (y) is close to the second water outlet (643) and has a lower height than the other trough wall; or The overflow structure (6421) is a plurality of sleeve structures (z) penetrating the bottom of the water balancing trough (642), the hollow channel of the sleeve structure (z) is the second water outlet (643), the height of the plurality of sleeve structures (z) is higher than the bottom of the water balancing trough (642), and the height of the plurality of sleeve structures (z) is equal.

19. The humidifier according to claim 18, characterized in that The shape of the overflow outlet (x) includes at least one of a rectangle, a circle, a trapezoid, a triangle, a fan, a rhombus, a pentagon or n deformations, wherein n is a positive integer greater than or equal to 6.

20. The humidifier according to any one of claims 1-5, 7, 9, 14-16 and 18-19, characterized in that: The anode (3) is a mesh electrode or a sheet electrode with a plurality of through holes, and / or the cathode (4) is any one of a block electrode, a rectangular electrode, a ring electrode, a U-shaped electrode or an arc electrode.

Images