CN216384445U - Fog-free humidifier - Google Patents

Abstract

The embodiment of the utility model discloses a fog-free humidifier which comprises a machine shell, a fan, an electric heating element, a wet curtain, a mounting frame, an air duct, a water tank and a water adding disc, wherein the machine shell is provided with an air inlet and an air outlet, the top wall of the machine shell is provided with a water adding port, the mounting frame is arranged at the upper part in the machine shell, the water tank is arranged at the lower part in the machine shell, the wet curtain and the air duct are arranged on the mounting frame, the electric heating element is arranged in the air duct, the fan is arranged at the rear end of the air duct, the fan, the electric heating element and the wet curtain are sequentially arranged along the airflow direction from the air inlet to the air outlet, the water adding disc is arranged at the top of the mounting frame and is opposite to the water adding port, and the water adding disc is provided with a water drainage hole communicated with the water tank through a water passage. The fog-free humidifier provided by the embodiment of the utility model has the advantages that the elements are regularly arranged, and the overall structure is compact.

Description

Fog-free humidifier

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a fog-free humidifier.

Background

Humidifiers are common household appliances, and are generally classified into ultrasonic humidifiers and mist-free humidifiers. When the ultrasonic humidifier is used, a large amount of water mist can be generated, and the practicability is poor. The fog-free humidifier evaporates and vaporizes water in an electric heating mode to realize a humidifying effect, and is more and more popular in recent years. However, the fog-free humidifier in the related art has a complicated element mounting structure, a complicated water adding structure, and a messy element layout, which results in a high manufacturing cost, and affects the compactness and miniaturization of the fog-free humidifier.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the utility model provides the fog-free humidifier with regular element arrangement and compact structure.

The fog-free humidifier comprises a machine shell, a fan, an electric heating element, a wet curtain, a mounting frame, an air channel, a water tank and a water adding disc, wherein the machine shell is provided with an air inlet and an air outlet, a water filling port is formed in the top wall of the machine shell, the mounting frame is arranged at the upper part in the machine shell, the water tank is arranged at the lower part in the machine shell, the wet curtain and the air channel are arranged on the mounting frame, the electric heating element is arranged in the air channel, the fan is arranged at the rear end of the air channel, the fan, the electric heating element and the wet curtain are sequentially arranged in the air flow direction from the air inlet to the air outlet, the water adding disc is arranged at the top of the mounting frame and is opposite to the water filling port, and the water adding disc is provided with a water drainage hole communicated with the water tank through a water channel.

According to the fog-free humidifier provided by the embodiment of the utility model, the fan 2 and the electric heating element 3 are arranged at the upper part in the shell through the air duct, and the water adding disc and the water tank are respectively arranged at the top part and the lower part in the shell.

In some embodiments, a hollow column is arranged at the top of the mounting rack, and a convex column is arranged on the outer bottom surface of the water adding disc and is matched in the hollow column.

In some embodiments, the mounting rack comprises a bottom plate and a box body arranged on the bottom plate, the box body is provided with a vertical column body, the air duct is arranged on the box body, the water channel is formed in the vertical column body, the upper end of the vertical column body is connected with the bottom wall of the water adding disc, and the upper end of the water channel is connected with the water outlet hole.

In some embodiments, the outer bottom surface of the water adding disc is provided with an annular flange surrounding the lower water hole, and the upper end of the upright column is fitted in the annular flange.

In some embodiments, a water feeding platform located in the annular flange and extending into the water channel is arranged on the outer bottom surface of the water feeding disc, a water discharging cavity communicated with the water discharging hole is formed in the water feeding platform, the lower end of the water discharging cavity is closed, and a water discharging opening is formed in the peripheral wall of the water feeding platform.

In some embodiments, the peripheral wall of the lower water table is provided with a plurality of notches which are concave inwards to form the lower water gap.

In some embodiments, the non-fog humidifier further comprises a circuit board mounting plate for mounting a circuit board, the circuit board mounting plate being detachably connected to or integrally formed with the watering tray, the circuit board mounting plate being mounted on the top of the case.

In some embodiments, the upper surface of the circuit board mounting plate is provided with a circuit board receiving groove for receiving a circuit board.

In some embodiments, a WIFI module mounting structure for mounting a WIFI module is provided on the lower surface of the circuit board mounting plate.

In some embodiments, a containing cavity is provided in the box body, the wet curtain is installed in the containing cavity, and the containing cavity is provided with a front opening opposite to the air outlet and a rear opening opposite to the electric heating element.

In some embodiments, the fog-free humidifier further comprises a wet curtain shell arranged in the accommodating cavity, the wet curtain is arranged in the wet curtain shell, the wet curtain shell comprises a U-shaped frame and a water distribution groove arranged at the top of the U-shaped frame, a water inlet hole communicated with the water tank is arranged on a bottom plate of the mounting frame, a water outlet hole communicated with the water inlet hole and used for supplying water to the water distribution groove is arranged in a top wall of the mounting frame, and a plurality of water distribution holes used for supplying water to the wet curtain are arranged on a bottom wall of the water distribution groove.

In some embodiments, the housing includes an upper shell and a lower shell coupled to the upper shell, the bottom plate of the mounting bracket is located at a junction of the upper shell and the lower shell, the blower, the electric heating element, and the wet curtain are located in the upper shell, and the water tank is located in the lower shell.

In some embodiments, the air inlet is provided on a rear surface of the cabinet, the air outlet is provided on a front surface of the cabinet, the air inlet and the air outlet are horizontally opposed, and the blower, the electric heating element, and the wet curtain are sequentially provided between the air inlet and the air outlet in a horizontal direction.

Drawings

Fig. 1 is a schematic perspective view of a mist-free humidifier according to an embodiment of the present invention.

Fig. 2 is another perspective view of a mist-free humidifier according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of the mist-free humidifier according to the embodiment of the present invention after the upper case is removed.

Fig. 4 is another perspective view of the mist-free humidifier according to the embodiment of the present invention after the upper case is removed.

Fig. 5 is a perspective view of the mist-free humidifier of the embodiment of the present invention with the upper case and the mounting bracket removed.

Fig. 6 is a bottom perspective view of a mounting bracket of the mist-free humidifier according to an embodiment of the present invention.

Fig. 7 is a structural schematic view of a lower case of the non-fog humidifier according to the embodiment of the present invention.

Fig. 8 is a schematic view of a water tank and a water pump of a fog-less humidifier according to an embodiment of the present invention.

Fig. 9 is a schematic view of an electric heating element of a mist-free humidifier according to an embodiment of the present invention.

Fig. 10 is a schematic view of a water pan and circuit board mounting plate of a mist-free humidifier according to an embodiment of the present invention.

Fig. 11 is a schematic view of a water distribution tank of the mist-free humidifier according to the embodiment of the present invention.

Fig. 12 is a schematic view of the air duct of a mist-free humidifier according to an embodiment of the present invention.

Fig. 13 is a schematic bottom perspective view of a water pan and a circuit board mounting plate of a mist-free humidifier according to an embodiment of the present invention.

Fig. 14 is a schematic view of a mounting bracket and air duct of a fog-less humidifier according to an embodiment of the present invention.

Fig. 15 is a schematic view of the air duct, electric heating element and fan of a mist free humidifier according to an embodiment of the present invention.

Reference numerals:

a machine shell 1, an upper shell 11, an air inlet 111, an air outlet 112, a water filling port 113, a lower shell 12,

a fan 2, an electric heating element 3, a wet curtain 4, a water tank 5, a water pump 6, a water adding disc 7, a water outlet 71, a convex column 72, an annular flange 73, a water discharging platform 74, a water discharging port 741,

mounting rack 8, bottom plate 81, water leakage gap 811, water inlet 82, water outlet 83, water channel 84, box 85, hollow column 851, upright column 86,

the wet curtain shell 9, the U-shaped frame 91, the water distribution groove 92, the water distribution holes 921, the weir plate 922, the air duct 10, the circuit board mounting plate 28 and the WIFI module mounting structure 30.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A mist-free humidifier according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 15, the non-fog humidifier according to the embodiment of the present invention includes a cabinet 1, a blower 2, an electric heating element 3, a wet curtain 4, a mounting rack 8, an air duct 10, a water tank 5, and a water adding tray 7, wherein the cabinet 1 has an air inlet 111 on a rear surface thereof, and the cabinet 1 has an air outlet 112 on a front surface thereof.

As shown in fig. 14 and 15, the wet curtain 4 and the air duct 10 are mounted on the mounting frame 8, the electric heating member 3 is provided in the air duct 10, the fan 2 is mounted at the rear end of the air duct 10, and the fan 2, the electric heating member 3 and the wet curtain 4 are sequentially provided in the cabinet 1 in the direction of the air flow from the air inlet 111 to the air outlet 112. As shown in fig. 3, the blower 2 blows air toward the electric heating member 3, blows air to the electric heating member 3 for heating, the electric heating member 3 has an air passing gap, and the heated hot air blows to the wet curtain 4 to heat the water adsorbed by the wet curtain 4 into steam and is discharged from the air outlet 112, thereby achieving humidification. The wet curtain 4 has the characteristics of water absorption, water resistance, high diffusion speed, lasting efficiency and the like.

The water adding tray 7 is arranged at the top of the inner cavity of the machine shell 1, the water adding tray 7 is provided with a water outlet hole 71 communicated with the water tank 5 through a water passage 84, and the water adding tray 7 is communicated with the water tank 5 through the water passage 84. The roof of casing 1 is equipped with the filler 113 that is used for adding water in to the dish 7 that adds water, and filler 113 is latticed, and the user can directly add water in the dish 7 that adds water in to casing 1 through filler 113 on the roof of casing 1, need not to open casing 1, convenient operation.

According to the fog-free humidifier provided by the embodiment of the utility model, the fan 2 and the electric heating element 3 are arranged at the upper part in the machine shell 1 through the air duct 10, the water adding disc 7 and the water tank 5 are respectively arranged at the top part and the lower part in the machine shell 1, the layout is simple and reasonable, the element arrangement is regular, the overall structure of the fog-free humidifier is more compact, and the volume is small.

The air inlet 111 is disposed on the rear surface of the cabinet 1, the air outlet 112 is disposed on the front surface of the cabinet 1, the air inlet 111 and the air outlet 112 are opposite to each other in the horizontal direction, and both the air inlet 111 and the air outlet 112 are located at the upper portion of the inner cavity of the cabinet 1. The blower 2, the electric heating member 3, and the wet curtain 4 are provided between the air inlet 111 and the air outlet 112 in this order in the horizontal direction.

In use, under the action of the fan 2, wind enters the machine shell from the air inlet 111 at the back of the machine shell 1, the fan 2 blows the wind to the electric heating element 3, and the heated wind blows to the wet curtain 4, so that the water cup adsorbed by the wet curtain 4 is evaporated and is discharged from the air outlet 112 at the front of the machine shell 1 along with the air flow, and humidification is realized. In this embodiment, the air inlet 111 and the air outlet 112 are opposite to each other in the horizontal direction, the airflow travels along a horizontal linear path, the air flow path is short, the airflow flowing smoothness is good, the heat loss is reduced, the heating effect on water in the wet curtain 4 can be greatly improved, and the humidification efficiency of the humidifier is improved. Moreover, the structure of the mist-free humidifier can be more compact and miniaturized.

The cabinet 1 has a substantially rectangular parallelepiped shape, and the cabinet 1 includes an upper case 11 and a lower case 12 coupled to the upper case 11, so that the cabinet 1 can be easily disassembled for cleaning and maintenance. The mount 8 includes a base plate 81 and a case 85 provided on the base plate 81. The bottom plate 81 is connected to the upper end of the lower case 12, thereby dividing the inner cavity of the housing case 1 into an upper cavity and a lower cavity, in other words, the inner cavity of the upper case 11 constitutes an upper cavity and the inner cavity of the lower case 12 constitutes a lower cavity. As shown in fig. 4, the box 85 is substantially rectangular frame-shaped and has a front opening and a rear opening, that is, the box 85 is through in the front and rear, the fan 2 and the electric heating element 3 can be connected to the rear wall of the box 85 through the air duct 10, a containing cavity is provided in the box 85, and the wet curtain 4 is installed in the containing cavity. The water passageway 84 is located the both sides of box 85, and specifically, mounting bracket 8 is still including establishing upright post body 86 on bottom plate 81, and the inner chamber of upright post body 86 constitutes water passageway 84, adds water tray 7 and links to each other with upright post body 86, and from this, upright post body 86 can play the effect of supporting water tray 7, has simplified the structure to water passageway's setting is simple, and the cost is reduced has improved the overall structure intensity and the compactedness of last intracavity, and the overall structure of no fog humidifier also can be compacter.

Specifically, as shown in fig. 4, the housing chamber of the box body 85 has a front opening opposite to the air outlet 112 and a rear opening opposite to the electric heating element 3, air heated by the electric heating element 3 reaches the wet curtain 4 from the rear opening, and water vapor generated by heating is discharged to the outside of the cabinet 1 through the front opening and the air outlet 112.

As shown in fig. 12, in a specific example, the air duct 10 for installing the electric heating element 3 on the mounting rack 8 is a front-back through trumpet-shaped frame structure, the electric heating element 3 is arranged in the air duct 10, the fan 2 is arranged at the rear end of the air duct 10, so that the air duct 10 can function as an air guide channel, air heated by the electric heating element 3 can completely reach the wet curtain 4 through the air duct 10, and the waste of energy and the influence on other parts caused by the loss of hot air are avoided.

As described above, the cabinet 1 includes the upper case 11 and the lower case 12 coupled to the upper case 11, the bottom plate 81 of the mounting bracket 8 is located at the junction of the upper case 11 and the lower case 12 to divide the inner cavity of the cabinet 1 into the upper chamber and the lower chamber, the blower 2, the electric heating member 3 and the wet curtain 4 are located in the upper chamber, the water tank 5 and the water pump 6 are located in the lower chamber, and the component structures in the upper chamber and the lower chamber do not affect each other.

As shown in fig. 6, a water leakage gap 811 is provided on the bottom plate 81 of the mounting bracket 8 to allow water in the upper chamber to leak into the water tank 5. The water in the upper cavity includes, but is not limited to, water flowing out when the wet curtain 4 absorbs more water, water blown by wind from the wet curtain, water generated by steam condensation, and the like. For example, the water in the upper cavity flows out of the bottom plate 81, and falls into the water tank 5 below the bottom plate 81 through the water leakage gap 811 on the bottom plate 81 by means of gravity, so that the outflow water is prevented from affecting other parts, the water can be recycled, and the waste of the water is avoided.

The bottom wall of the water adding disc 7 is of a non-planar structure with undulation, and the lower water hole 71 is located at a low position, so that water entering the water adding disc 7 automatically flows into the water channel 84, and accumulated water is prevented from remaining in the water adding disc 7. Specifically, the bottom wall of the water adding tray 7 is high in the middle and low at two ends, and two ends of the bottom wall of the water adding tray 7 are respectively provided with a water outlet 71 communicated with the water channels 84, so that water can be added into the water tank 5 through the two water channels 84 simultaneously, and the water adding efficiency is high.

In some embodiments, the top of the mounting bracket 8 is provided with a hollow column 851, the outer bottom surface of the water adding disk 7 is provided with a convex column 72, and the convex column 72 is detachably matched in the hollow column 851, so that the positioning and the limiting between the water adding disk 7 and the mounting bracket 8 are realized, and the water adding disk 7 is prevented from moving.

The outer bottom surface of the water adding disc 7 is provided with an annular flange 83 surrounding the water outlet hole 71, and the upper end of the upright column 86 is matched in the annular flange 73, so that the water in the water adding disc 7 can be ensured to completely flow into the water channel 84 through the water outlet hole 71, and the leakage is avoided.

Furthermore, the outer bottom surface of the watering plate 7 is provided with a water drainage platform 74 which is positioned in the annular flange 73 and extends into the water channel 84, a water drainage cavity communicated with the water drainage hole 71 is arranged in the water drainage platform 74, the lower end of the water drainage cavity is closed, the peripheral wall of the water drainage platform 74 is provided with a water drainage port 741, and the water drainage port 741 is formed by an inward concave gap on the peripheral wall of the water drainage platform 74.

The launching platform 74 has a buffering function on the water flow, so as to reduce the speed of the water flow, specifically, the water in the launching hole 71 firstly enters the launching cavity, then falls on the closed position of the lower end of the launching cavity, and after the water flow is slowed down, the water flow enters the water channel through the plurality of launching holes 741, and finally enters the water tank 5.

In some embodiments, as shown in fig. 5, the mist-free humidifier further includes a wet curtain housing 9 disposed in the accommodating chamber of the box 85, the wet curtain housing 9 includes a U-shaped frame 91 and a water distribution groove 92 disposed at the top of the U-shaped frame 91, and the wet curtain 4 is disposed in the U-shaped frame 91 and water is supplied to the wet curtain 4 through the water distribution groove 92. Wet curtain shell 91 is the platelike of the cuboid form of roughly, with the shape adaptation of the box 85 of mounting bracket 8, through setting up wet curtain shell 9, can improve wet curtain 4's structural strength and overall structure compactness, avoids water and steam to escape from wet curtain 4's both sides, guarantees that steam is discharged from discharge port 112, has improved the humidification effect, has avoided the influence of steam to other spare parts in the casing 1.

As described above, if the amount of water in the wet curtain 4 is too much, the water overflows the U-shaped frame 91 and flows back into the water tank 6 through the water leakage gap 811 of the bottom plate 81.

Specifically, as shown in fig. 4, a water inlet 82 connected to the water pump 6 is provided on the bottom plate 81 of the mounting bracket 8, and a water outlet 83 communicated with the water inlet 82 and used for supplying water to the water distribution tank 92 is provided in the top wall of the mounting bracket 8. The water inlet 82 and the water outlet 83 can be communicated through a pipeline, for example, the water inlet is connected through a hose, so that an independent communication pipeline does not need to be arranged, the structure is simple, and the hose is better and convenient. The water pump 6 disposed in the cabinet 1 pumps the water in the water tank 5 to the water outlet hole 83 through the water inlet hole 82, and flows into the water distribution groove 92 through the water outlet hole 83.

As shown in fig. 11, a plurality of water distribution holes 921 for supplying water to the wet curtain 4 are formed in the bottom wall of the water distribution groove 92, and the plurality of water distribution holes 921 are uniformly distributed on the bottom wall of the water distribution groove 92, so that the uniform distribution of water in the wet curtain can be ensured, and the effect of water evaporation can be improved.

A plurality of weirs 922 are arranged in the water distribution tank 92, the inner cavity of the water distribution tank 92 is divided into a plurality of water distribution areas by the weirs 922, and at least one water distribution hole 921 is formed in the bottom wall of each water distribution area, so that the uniformity and the evaporation effect of water distribution can be further improved.

As shown in fig. 11, a hemispherical protrusion is disposed at the middle position of the water distribution groove 92, the hemispherical protrusion faces the water outlet 83, the plurality of water distribution areas are uniformly distributed along the circumference of the hemisphere, so that the water flowing out from the water outlet 83 flows to different water distribution areas uniformly along the hemisphere and flows to the wet curtain 4 through the water distribution holes 921 in each water distribution area, thereby further ensuring that the water flows into different positions of the wet curtain 4 uniformly.

In some embodiments, the wet curtain 4 may be a HEAP filter screen or made of wet filter paper, preferably a HEPA filter screen. The HEPA filter screen can remove particles with the diameter of more than 0.3 micron by more than 99.97 percent, thereby playing a role in filtering air flow and improving the cleanliness of humidified air.

In some embodiments, the mist-free humidifier further comprises a circuit board mounting plate 28 for mounting a circuit board, the circuit board mounting plate 28 is detachably connected to or integrally formed with the water adding tray, preferably, the circuit board mounting plate 28 is integrally formed with the water adding tray, and the circuit board mounting plate 28 is mounted on the top of the cabinet and located at the front end of the interior of the cabinet.

Specifically, the upper surface of the circuit board mounting plate 28 is provided with a circuit board accommodating groove, the circuit board is mounted in the circuit board accommodating groove, and the circuit board mounting plate 28 plays a role in supporting and limiting the circuit board.

As shown in fig. 13, a WIFI module mounting structure 30 for mounting a WIFI module is disposed on the lower surface of the circuit board mounting plate 28, specifically, the WIFI module mounting structure 30 is a slot formed by a plurality of clamping jaws disposed on the lower surface of the circuit board mounting plate 28, the WIFI module is clamped in the slot in a retractable and pushing manner, and the WIFI module is used for connecting the fog-free humidifier and the WIFI.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (13)

1. A mist-free humidifier, comprising: casing (1), fan (2), electric heating element (3), wet curtain (4), mounting bracket (8), wind channel (10), water tank (5) and water feeding dish (7), casing (1) has air intake (111) and air outlet (112), the roof of casing (1) is equipped with water feeding mouth (113), establish mounting bracket (8) upper portion in casing (1), establish water tank (5) lower part in casing (1), wet curtain (4) with wind channel (10) are installed on mounting bracket (8), electric heating element (3) are established in wind channel (10), fan (2) are installed the rear end of wind channel (10), fan (2), electric heating element (3) with wet curtain (4) are along following air intake (111) to air outlet (112) the air current direction upwards sets gradually, the water adding disc (7) is arranged at the top of the mounting frame (8) and is opposite to the water adding port (113), and the water adding disc (7) is provided with a lower water hole (71) communicated with the water tank (5) through a water channel (84).

2. The humidifier according to claim 1, wherein the top of the mounting rack (8) is provided with a hollow column (851), the outer bottom surface of the water adding disk (7) is provided with a convex column (72), and the convex column (72) is fitted in the hollow column (851).

3. The non-fog humidifier according to claim 1, wherein the mounting frame (8) comprises a bottom plate (81) and a box body (85) provided on the bottom plate (81), the box body (85) has a vertical column (86), the air duct (10) is mounted on the box body (85), the water passage (84) is formed in the vertical column (86), the upper end of the vertical column (86) is connected with the bottom wall of the water adding tray (7), and the upper end of the water passage (84) is connected with the lower water hole (71).

4. The mist-free humidifier according to claim 3, wherein an annular flange (73) surrounding the drain hole (71) is provided on an outer bottom surface of the water adding pan (7), and an upper end of the upright post (86) is fitted in the annular flange (73).

5. The humidifier according to claim 4, wherein the outer bottom surface of the water adding plate (7) is provided with a water drainage platform (74) which is positioned in the annular flange (73) and extends into the water channel (84), the water drainage platform (74) is internally provided with a water drainage cavity communicated with the water drainage hole (71), the lower end of the water drainage cavity is closed, and the peripheral wall of the water drainage platform (74) is provided with a water drainage port (741).

6. The mist-free humidifier according to claim 5, wherein a peripheral wall of the lower water table (74) is provided with a plurality of notches recessed inward to form the lower water port (741).

7. The non-fog humidifier of claim 3 further comprising a circuit board mounting plate (28) for mounting a circuit board, the circuit board mounting plate (28) being detachably connected to or integrally formed with the water adding tray (7), the circuit board mounting plate (28) being mounted on the top of the tank (85).

8. The non-fog humidifier of claim 7 wherein the upper surface of the circuit board mounting plate (28) is provided with a circuit board receiving slot for receiving a circuit board.

9. The non-mist humidifier according to claim 8, wherein a WIFI module mounting structure (30) for mounting a WIFI module is provided on a lower surface of the circuit board mounting plate (28).

10. The mist-free humidifier according to claim 3, wherein a housing chamber is provided in the case (85), the wet curtain (4) being mounted in the housing chamber, the housing chamber having a front opening opposite to the air outlet (112) and a rear opening opposite to the electric heating element.

11. The non-fog humidifier according to claim 10, further comprising a wet curtain shell (9) disposed in the accommodating cavity, wherein the wet curtain (4) is disposed in the wet curtain shell (9), the wet curtain shell (9) comprises a U-shaped frame (91) and a water distribution groove (92) disposed at the top of the U-shaped frame (91), a water inlet (82) communicated with the water tank is disposed on a bottom plate (81) of the mounting frame (8), a water outlet (83) communicated with the water inlet (82) and used for supplying water into the water distribution groove (92) is disposed in a top wall of the mounting frame (8), and a plurality of water distribution holes (921) used for supplying water to the wet curtain (4) are disposed on a bottom wall of the water distribution groove (92).

12. The mist-free humidifier according to claim 3, wherein the cabinet (1) comprises an upper case (11) and a lower case (12) coupled to the upper case (11), the bottom plate (81) of the mounting bracket (8) is located at a junction of the upper case and the lower case, the blower (2), the electric heating element (3) and the wet curtain (4) are located in the upper case, and the water tank (5) is located in the lower case.

13. The non-fog humidifier according to claim 1, wherein the air inlet (111) is provided on a rear surface of the cabinet (1), the air outlet (112) is provided on a front surface of the cabinet (1), the air inlet (111) and the air outlet (112) are horizontally opposed, and the blower (2), the electric heating element (3), and the wet curtain (4) are sequentially provided between the air inlet (111) and the air outlet (112) in a horizontal direction.

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