阅读说明：本技术 用于纯净型加湿器的低功耗高效蒸发装置及方法 (Low-power-consumption efficient evaporation device and method for pure humidifier ) 是由 皮体斌 于 2021-01-20 设计创作，主要内容包括：本发明公开了一种用于纯净型加湿器的低功耗高效蒸发装置及方法,包括用于放置在水箱中的蒸发器,上述蒸发器包括驱动轴,上述驱动轴上安装多个蒸发片,上述蒸发片内部设有金属片上述蒸发器一侧设有与金属片对应的电磁感应器,上述电磁感应器与金属片形成涡流磁场,上述金属片用于蒸发器转动过程中至少有一次与电磁感应器相对应,且电磁感应器在蒸发器转动时与金属片电磁感应并提高蒸发片的温度,在蒸发器上形成水膜,启动电磁感应器,使电磁感应器与蒸发片内部的金属片形成涡流磁场,从而提高内部的金属片的温度；使蒸发片整体升温,进而加热水膜,使水膜蒸发；以期望优化现有加湿器提高加湿量,可能导致风机能耗过高,甚至出现噪音的问题。(The invention discloses a low-power-consumption high-efficiency evaporation device and a method for a pure humidifier, and the low-power-consumption high-efficiency evaporation device comprises an evaporator which is placed in a water tank, wherein the evaporator comprises a driving shaft, a plurality of evaporation sheets are installed on the driving shaft, an electromagnetic inductor which corresponds to a metal sheet is arranged on one side of the evaporator, which is arranged in each evaporation sheet, the electromagnetic inductor and the metal sheet form an eddy magnetic field, the metal sheet is used for corresponding to the electromagnetic inductor at least once in the rotation process of the evaporator, the electromagnetic inductor performs electromagnetic induction with the metal sheet when the evaporator rotates and improves the temperature of the evaporation sheet, a water film is formed on the evaporator, the electromagnetic inductor is started, the electromagnetic inductor and the metal sheet in the evaporation sheets form an eddy magnetic field, and the temperature of the metal sheet in the evaporator is improved; heating the evaporation sheet integrally, and further heating the water film to evaporate the water film; the problem that the existing humidifier is expected to be optimized to improve the humidification quantity, the energy consumption of a fan is possibly overhigh, and even noise occurs is solved.)

1. A low-power consumption high efficiency evaporation plant for pure type humidifier, includes the evaporimeter (2) that is used for placing in water tank (1), evaporimeter (2) include drive shaft (3), install a plurality of evaporation pieces (4) on drive shaft (3), its characterized in that: the evaporation piece (4) is internally provided with a metal sheet (5), one side of the evaporator (2) is provided with an electromagnetic inductor (7) corresponding to the metal sheet (5), the electromagnetic inductor (7) and the metal sheet (5) form an eddy magnetic field, the metal sheet (5) is used for the evaporator (2) to rotate at least once and corresponds to the electromagnetic inductor (7), and the electromagnetic inductor (7) and the metal sheet (5) perform electromagnetic induction when the evaporator (2) rotates and improve the temperature of the evaporation piece (4).

2. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 1, wherein: the electromagnetic inductor (7) is arranged at an opening at the upper part of the water tank (1), the upper end of the evaporation sheet (4) is higher than the opening at the upper part of the water tank (1), and when the metal sheet (5) is matched with the electromagnetic inductor (7), the height of the metal sheet (5) is higher than the opening at the upper part of the water tank (1).

3. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 2, wherein: the transverse length of the electromagnetic inductor (7) is equal to or larger than the axial width of the evaporator (2), and the electromagnetic inductor (7) heats the metal sheets (5) on the plurality of evaporation sheets (4) simultaneously.

4. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 1, wherein: the evaporation sheet evaporator is characterized in that a limiting part (301) is arranged on the driving shaft (3), a clamping part (401) corresponding to the limiting part (301) is arranged on the inner ring of the evaporation sheet (4), and the evaporation sheet (4) is fixed on the driving shaft (3) through the clamping part (401).

5. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 1, wherein: the evaporation sheet (4) is provided with a water film hole (402), and the metal sheet (5) radiates heat energy to the water film hole (402) through the insulating layer (6).

6. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 5, wherein: bosses (403) are arranged on the surfaces of the evaporation sheets (4), the bosses (403) between two adjacent evaporation sheets (4) are mutually abutted, and gaps for sufficient air circulation are formed between the evaporation sheets (4) through the bosses (403).

7. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 5, wherein: the evaporation piece (4) is characterized in that a plurality of metal sheets (5) are arranged inside the evaporation piece (4), the metal sheets (5) are uniformly distributed around the evaporation piece (4), and the electromagnetic inductor (7) is used for sequentially heating different metal sheets (5).

8. The low power consumption high efficiency evaporation device for a pure humidifier according to claim 1, wherein: the electromagnetic inductor (7) comprises a shell (701), an electromagnetic coil is arranged inside the shell (701), an eddy current magnetic field is formed by the electromagnetic coil near the metal sheet (5), and reinforcing ribs (6) are arranged on the evaporation sheet (4).

9. A low-power-consumption high-efficiency evaporation method for a pure humidifier is characterized by comprising the following steps: after a water film is formed on the evaporator (2), the electromagnetic inductor (7) and the metal sheet (5) in the evaporation sheet form an eddy magnetic field, so that the temperature of the metal sheet (5) in the evaporation sheet is increased; the evaporation sheet (4) is heated up as a whole, and the water film is further heated to evaporate the water film.

10. The low power consumption high efficiency evaporation method for a pure humidifier according to claim 9, comprising the steps of:

step A, injecting water into a water tank (1), wherein the lower part of an evaporator (2) needs to be submerged at the lowest liquid level;

b, the driving shaft (3) drives the evaporator (2) to integrally rotate, the evaporator (2) brings water away from the liquid level, and a water film is formed on an evaporation sheet (4) of the evaporator (2);

c, starting the electromagnetic inductor (7) to integrally heat the evaporator (4) to evaporate the water film;

and D, starting the fan to enable the fan to generate continuous airflow, wherein the airflow passes through the evaporator (2) to promote the water film evaporation.

Technical Field

The invention relates to the field of humidifiers, in particular to a low-power-consumption high-efficiency evaporation device and method for a pure humidifier.

Background

The existing humidifiers are of various types, such as ultrasonic atomization humidifiers and electric heating humidifiers, although the final purpose of each type of humidifier is to increase the indoor air humidity, each type of humidifier has different advantages and disadvantages, the humidification rate of part of humidifiers in unit volume is not high, the consumption of electric energy of some humidifiers during moisture gasification is high, and the humidification quantity which can be generated by the unit power consumption of some humidifiers is limited; for example, the safety performance of the electric heating humidifier is high, and the ultrasonic atomization humidifier has high requirements on water quality. The humidifier is a natural evaporation type humidifier which is most suitable for the market, and mainly uses an evaporation device to evaporate water naturally, and a fan flows the moisture to the outside to realize humidification.

The existing evaporation devices are immersed below the water surface of the water storage tank, and the evaporation devices rotate to form a water film. The air flow delivered by the fan contacts the water film to form moisture, and since the moisture is output to the outside along with the air flow, an important factor for increasing the amount of humidification is to increase the amount of air flow, thereby delivering more moisture to the outside per unit time. However, increasing the air flow inevitably increases the fan load, which leads to increased energy consumption and even noise generation. Therefore, it is worth studying how to ensure that the blower power is reduced on the premise of the humidification efficiency.

Disclosure of Invention

The invention aims to provide a low-power-consumption high-efficiency evaporation device and method for a pure humidifier, aiming at optimizing the existing humidifier to improve the humidification quantity, possibly causing the problem of overhigh energy consumption of a fan and even generating noise.

In order to solve the technical problems, the invention adopts the following technical scheme:

a low-power-consumption high-efficiency evaporation device for a pure humidifier comprises an evaporator placed in a water tank, the evaporator comprises a driving shaft, a plurality of evaporation pieces are mounted on the driving shaft, a metal sheet is arranged in each evaporation piece, an electromagnetic inductor corresponding to the metal sheet is arranged on one side of the evaporator, an eddy magnetic field is formed by the electromagnetic inductor and the metal sheet, the metal sheet is used for corresponding to the electromagnetic inductor at least once in the rotation process of the evaporator, and the electromagnetic inductor performs electromagnetic induction with the metal sheet when the evaporator rotates and improves the temperature of the evaporation piece.

Preferably, the electromagnetic inductor is arranged at an opening at the upper part of the water tank, the upper end of the evaporation sheet exceeds the opening at the upper part of the water tank, and when the metal sheet is matched with the electromagnetic inductor, the height of the metal sheet exceeds the opening at the upper part of the water tank.

The further technical scheme is that the transverse length of the electromagnetic inductor is equal to or larger than the axial width of the evaporator, and the electromagnetic inductor heats the metal sheets on the evaporation sheets simultaneously.

Preferably, the driving shaft is provided with a stopper, the evaporation sheet is provided with an engaging portion corresponding to the stopper, and the evaporation sheet is fixed to the driving shaft by the engaging portion.

Preferably, the evaporation sheet is provided with a water film hole, and the metal sheet diffuses heat energy to the water film hole through the insulating layer.

The further technical scheme is that bosses are arranged on the surfaces of the evaporation pieces, the bosses between two adjacent evaporation pieces are mutually abutted, and the bosses enable gaps with enough air circulation to be formed between the evaporation pieces.

According to a further technical scheme, the evaporation sheet is provided with a plurality of metal sheets, the metal sheets are uniformly distributed around the evaporation sheet, and the electromagnetic inductor is used for heating different metal sheets in sequence.

Preferably, the electromagnetic inductor includes a case, an electromagnetic coil is provided in the case, an eddy magnetic field is formed near the metal sheet by the electromagnetic coil, and the evaporation sheet is provided with a rib.

The invention also discloses a low-power-consumption high-efficiency evaporation method for the pure humidifier, when a water film is formed on the evaporator, the electromagnetic inductor and the metal sheet in the evaporation sheet form an eddy magnetic field, so that the temperature of the metal sheet in the evaporation sheet is increased; the evaporation sheet is heated up integrally, and then the water film is heated to evaporate the water film.

Preferably, the method further comprises the following steps: step A, injecting water into a water tank, wherein the lower part of an evaporator needs to be immersed at the lowest liquid level; b, driving the evaporator to integrally rotate by the driving shaft, and taking the water away from the liquid level by the evaporator to form a water film on an evaporation sheet of the evaporator; step C, starting the electromagnetic inductor to integrally heat the evaporator so as to evaporate the water film; and D, starting the fan to enable the fan to generate continuous airflow, and enabling the airflow to pass through the evaporator to promote the water film evaporation.

Compared with the prior art, the invention has the beneficial effects of at least one of the following:

the invention can generate heat energy by the evaporator, improve the volatilization rate of water, improve the humidifying efficiency of the humidifier under the condition of the same wind speed, and similarly, can reduce the rotating speed and energy consumption of the fan under the condition of the same humidifying quantity, thereby being beneficial to improving the mute efficiency of the humidifier and reducing the power consumption.

According to the invention, the eddy current is formed on the metal sheet through the electromagnetic inductor, so that the metal sheet generates heat, and the heat acts on the water film formed on the evaporation sheet, thereby increasing the moisture content in the airflow.

According to the invention, through the height arrangement of the electromagnetic inductor, the electromagnetic inductor is prevented from being soaked by evaporation water, and the safety of working elements in the electromagnetic inductor is ensured.

According to the invention, the metal sheets on the plurality of evaporation sheets are heated by one electromagnetic inductor, so that the wiring difficulty of the humidifier is reduced, and the integral heating of the evaporator is facilitated.

According to the invention, through the matching of the limiting part and the clamping part, a plurality of evaporation sheets can be sleeved on one driving shaft, the number of water films of the evaporation sheets is increased through the water film holes, so that the water films are easier to form on the evaporation sheets, the thickness of the water films is controlled, the thickness of the water film holes attached to the evaporation sheets is controlled to be in a micron order, the water films on the water film holes can be instantaneously evaporated when being heated, and further, a good evaporation effect is achieved under the state of low energy consumption.

The invention ensures that the evaporation sheets have enough air gaps after being installed through the bosses, and ensures that air can normally circulate in the two evaporation sheets.

The water tank comprises a water tank body, a water tank cover and a water tank cover, wherein the water tank cover is arranged on the water tank cover, the water tank cover is arranged on the water.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is an overall schematic view of an evaporation pan of the present invention.

Fig. 3 is a schematic view of the structure of the evaporation pan.

Fig. 4 is a schematic view of a sheet metal installation.

Fig. 5 is a schematic view of the operation of the evaporation sheet.

Fig. 6 is a schematic view of an evaporation sheet installation.

Fig. 7 is a schematic view of a boss structure.

Description of reference numerals:

1-water tank, 2-evaporator, 3-driving shaft, 4-evaporation piece, 5-metal sheet, 6-reinforcing rib, 7-electromagnetic inductor, 301-limiting part, 401-clamping part, 402-water film hole, 403-boss and 701-shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

referring to fig. 1, 2, 3 and 4, an embodiment of the present invention is a low power consumption and high efficiency evaporation apparatus for a pure humidifier, including an evaporator 2 for being placed in a water tank 1, the evaporator 2 including a driving shaft 3, the driving shaft 3 having a plurality of evaporation sheets 4 mounted thereon, the evaporation sheets being made of a heat-resistant plastic material, such as PVC plastic. The lower end of the evaporator 2 is immersed in the water tank 1, the driving shaft 3 drives the evaporation sheet 4 to rotate, so that a natural evaporation condition is formed, and then the air humidification is realized by matching the fan of the humidifier.

The metal sheet 5 is provided in the evaporation sheet 4, the electromagnetic inductor 7 corresponding to the metal sheet 5 is provided on one side of the evaporator 2, the electromagnetic inductor 7 and the metal sheet 5 form an eddy current magnetic field, and when the metal sheet 5 is placed in the alternating magnetic field of the electromagnetic inductor 7, an eddy current is generated in the vicinity of the metal sheet 5, and the eddy current phenomenon can increase the temperature of the metal sheet 5.

The metal sheet 5 is used for at least one time corresponding to the electromagnetic inductor 7 in the rotation process of the evaporator 2, the electromagnetic inductor 7 is electromagnetically induced with the metal sheet 5 when the evaporator 2 rotates and improves the temperature of the evaporation sheet 4, wherein the metal sheet 5 is wrapped in the evaporation sheet 4, and the installation form of the metal sheet 5 in the evaporation sheet 4 is various:

for example, when the metal sheet 5 is a single sheet, the metal sheet 5 and the evaporation sheet 4 are coaxially arranged, the size of the metal sheet 5 matches the size of the evaporation sheet 4, and when the evaporation sheet 4 rotates, a part of the metal sheet 5 continuously corresponds to the electromagnetic inductor 7, so that the evaporation sheet 4 is continuously heated.

For example, when the metal sheets 5 are a plurality of metal sheets, wherein the metal sheets 5 are distributed in a plurality of areas of the evaporation sheet 4, the metal sheets 5 are distributed in the evaporation sheet 4 in an annular array, so as to ensure that different metal sheets 5 correspond to the electromagnetic inductor 7 at least once when the evaporation sheet 4 rotates, and the annular distribution ensures that the temperature of the metal sheets 5 is relatively close when the metal sheets 5 correspond to the electromagnetic inductor 7, thereby ensuring the uniformity of the overall heating of the evaporation sheet 4.

It should be noted that the sheet metal 5 with different resistivity is selected according to the volume and the humidifying specification of the humidifier, and the temperature rise efficiency of the sheet metal 5 is controlled by the resistivity. Meanwhile, the number of turns of a turn coil in the electromagnetic inductor 7 needs to be adjusted based on the heat energy requirement, the temperature of the metal sheet 5 is restrained, the current ratio of the metal sheet is equal to the inverse ratio of the turn ratio, namely under the condition of constant magnetic flux density, the larger the area of the metal sheet 5 orthogonal to the magnetic field vector is, the higher the temperature rise efficiency of the metal sheet 5 is. Thereby, the magnetic flux cutting area of the metal sheet 5 is relatively small to avoid high temperatures.

Example 2:

based on the above embodiment, referring to fig. 5, another embodiment of the present invention is that the electromagnetic inductor 7 is disposed at the upper opening of the water tank 1, so as to prevent the purified water in the water tank 1 from splashing around the electromagnetic inductor 7 during the rotation of the evaporator 2, that is, the electromagnetic inductor 7 has a better waterproof effect under the condition of the same waterproof level.

The upper end of the evaporation sheet 4 is higher than the upper opening of the water tank 1, and when the metal sheet 5 is matched with the electromagnetic inductor 7, the height of the metal sheet 5 is higher than the upper opening of the water tank 1; on one hand, the maximum liquid level of the upper end of the evaporation sheet 4 exceeding the water level in the water tank 1 is easy to volatilize, on the other hand, the upper end of the evaporation sheet 4 is closer to the electromagnetic inductor 7, so that the electromagnetic inductor 7 can easily generate eddy current on the evaporation sheet 4, and attention needs to be paid to the fact that electromagnetic radiation generated by electromagnetic induction heating realized through the eddy current is lower than that generated when a mobile phone is switched on, so that the electromagnetic radiation cannot harm a human body, and the electromagnetic induction heating humidifier can be completely suitable for a humidifier.

Further, referring to fig. 6, the transverse length of the electromagnetic inductor 7 is equal to or greater than the axial width of the evaporator 2, and the metal sheets 5 on the plurality of evaporation sheets 4 are simultaneously heated by the electromagnetic inductor 7. The transverse length of the electromagnetic inductor 7 enables the electromagnetic inductor 7 to act on the plurality of evaporation sheets 4 given by the evaporator 2, so that certain heat energy of the water film of the whole evaporator 2 is guaranteed, larger-scale evaporation efficiency is achieved, and the overall humidification effect of the humidifier is improved.

Example 3:

based on the above embodiment, referring to fig. 6 again, in another embodiment of the present invention, the driving shaft 3 is provided with a stopper 301, the evaporation sheet 4 is provided with an engaging portion 401 corresponding to the stopper 301 at an inner ring thereof, and the evaporation sheet 4 is fixed to the driving shaft 3 by the engaging portion 401. The position-limiting portion 301 is a mounting hole on the existing driving shaft 3, and the engaging portion 401 is an existing snap mechanism that engages with the position-limiting portion 301, and the engaging portion 401 is inserted into the position-limiting portion 301, so that the evaporation sheet 4 is fixed on the driving shaft 3.

Example 4:

based on the above embodiment, referring to fig. 7 again, another embodiment of the present invention is that the evaporation sheet 4 is provided with a water film hole 402, and the metal sheet 5 radiates heat energy to the water film hole 402 through the insulating layer 6, wherein the water film hole 402 adopts a through hole structure, and the through hole is provided with inverted cone-shaped openings around the through hole, and the water film formed by the water film hole 402 is a micron-sized water film, so that a large amount of micron-sized water films are distributed on the evaporation sheet 4, and the micron-sized water films can be instantly heated under the action of the metal sheet 5, so that the water films can be evaporated more quickly with extremely low energy consumption, which is helpful for improving the overall humidification effect of.

Further, in order to ensure the stability of the evaporation sheet 4 during the rotation process, the surface of the evaporation sheet 4 is provided with a boss 403, and the bosses 403 between two adjacent evaporation sheets 4 are mutually abutted, so that the bosses 403 provide a gap for sufficient air circulation between the evaporation sheets 4. Since the diameter of the evaporation sheet 4 may be relatively large, the outer side of the evaporation sheet 4 may shake due to gravity during rotation, and in order to avoid the outer contour of the evaporation sheet 4 shaking during operation to affect the stability of the airflow channel of the evaporation sheet 4, the bosses 403 of different evaporation sheets 4 abut against each other, so that a gap for sufficient air circulation is ensured between the evaporation sheets 4.

Furthermore, a plurality of metal sheets 5 are provided in the evaporation sheet 4, the metal sheets 5 are uniformly distributed around the evaporation sheet 4, and the electromagnetic inductor 7 heats the different metal sheets 5 in sequence. Because the evaporation sheet 4 rotates when the evaporator 2 works, if the metal sheets 5 are unevenly distributed on the evaporation sheet 4, centrifugal force may occur in the evaporation sheet 4 during rotation, and the support pressure of the boss 403 is increased, therefore, when the metal sheets 5 are multiple, the metal sheets 5 need to be evenly distributed around the evaporation sheet 4, and the metal sheets 5 locally heat the evaporation sheet 4, so that the local water film holes 402 can be heated, and stable evaporation of purified water is ensured.

Example 5:

in another embodiment of the present invention, the electromagnetic inductor 7 includes a housing 701, a lower end of the housing 701 is a working surface, an electromagnetic coil is provided in the housing 701, and an eddy current magnetic field is formed near the metal sheet 5 by the electromagnetic coil.

The electromagnetic inductor 7 outputs low-frequency electromagnetic waves, that is, a large amount of eddy currents are generated by using an alternating magnetic field, and the low-frequency electromagnetic waves can penetrate through a non-metal object, so that the working surface can be made of plastic, and the electromagnetic waves emitted by the electromagnetic inductor 7 can penetrate through the working surface of the shell 701 and directly act on the metal sheet 5.

It should be noted that although the low-frequency electromagnetic wave is relatively safe, in order to ensure that the low-frequency electromagnetic wave only acts on the metal sheet 5 on the evaporation sheet 4, the periphery and the upper end of the shell 701 may be provided with anti-interference shields, specifically, the periphery and the upper end of the shell 701 may be additional aluminum sheets inside the plastic shell, and the aluminum sheets need to be grounded; the closed metal box body with good grounding is formed to avoid the external interference of the electromagnetic wave emitted by the metal box body or the normal operation of the metal box body from the interference of the external electromagnetic wave noise.

The evaporation sheet 4 is provided with the reinforcing ribs 6, and the bearing strength of the evaporation sheet 4 is improved through the reinforcing ribs 6, so that the supporting force of the evaporation sheet 4 on the metal sheet 5 is improved, and the evaporation surface of the evaporation sheet 4 is prevented from being bent.

Example 6:

based on the above embodiment, another embodiment of the present invention is a low-power-consumption high-efficiency evaporation method for a pure humidifier, wherein a water film is formed on an evaporator 2, an electromagnetic inductor 7 is started, and an eddy magnetic field is formed between the electromagnetic inductor 7 and a metal sheet 5 inside an evaporation sheet, so as to increase the temperature of the metal sheet 5 inside; the evaporation sheet 4 is heated as a whole, and the water film is further heated to evaporate the water film.

Further, the method also comprises the following steps: and step A, injecting water into the water tank 1, wherein the lowest liquid level height needs to submerge the lower part of the evaporator 2.

Since the device is applied to the existing evaporation type humidifier, which is generally provided with a fan to supply air through the fan, the humidification efficiency is controllable, and the water used for humidification is relatively healthy, the water used for the evaporator 2 may be pure water.

And step B, the driving shaft 3 drives the evaporator 2 to integrally rotate, the evaporator 2 takes the water out of the liquid level, and a water film is formed on an evaporation sheet 4 of the evaporator 2.

Wherein drive shaft 3 inserts the motor through current gear mechanism, drives drive shaft 3 work through the motor to evaporation piece 4 can utilize pure water self tension when rotating, and the evaporation piece 4 of evaporimeter 2 lifts the in-process from the surface of water and forms the water film. The whole evaporator 2 is driven to rotate by the rotation of the driving shaft 3, namely, the synchronous operation of a plurality of evaporation sheets 4 is ensured.

And step C, starting the electromagnetic inductor 7 to integrally heat the evaporator 4 so as to evaporate the water film. In order to ensure the efficiency of the equipment, generally, the operation is to start the electromagnetic inductor on the premise of ensuring that the purified water submerges the evaporator and the fan to normally supply air, so that the electromagnetic inductor heats the metal sheet.

And D, starting the fan to enable the fan to generate continuous airflow, and enabling the airflow to pass through the evaporator 2 to promote the water film evaporation. After the water film is formed, the electromagnetic inductor 7 heats the water film, and the fan drives the air flow to pass through the water film. The constant air supply of the fan can utilize the temperature and the air flow to influence the humidification efficiency under the condition that the energy consumption of the fan is relatively low.

Considering the normal safety standard, if humidification is stopped, on the premise of ensuring that the purified water submerges the evaporator 2 and the fan normally supplies air, the electromagnetic inductor 7 is firstly closed, then the fan stops supplying air, and finally the evaporator 2 stops rotating, so that the heat of the evaporator 2 is discharged as much as possible when humidification is stopped.

It should be noted that when the liquid level of the purified water in the water tank 1 is lower than the lower end of the evaporation sheet 4, the humidification is usually stopped, and the situation that the water film cannot be formed on the evaporator 2, so that the moisture content in the air flow is low and the indoor humidification effect may be affected is avoided. Therefore, when necessary, the liquid level detection unit in the water tank 1 can be in signal connection with the electromagnetic inductor 7 and the control unit of the fan, so that the electromagnetic inductor 7 and the fan can be automatically stopped after the liquid level is lower than a set range.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.