Patent Description:
This application relates to a misting fan.

A misting fan is usually connected to a commercial power as an energy source, and the misting fan has great limitations and cannot be adapted to some places far from the commercial power or lack of sockets, which seriously limits the use of the misting fan. For a misting fan connected to a small battery pack, it cannot be applied to the spray requirements of large venues, large areas, and high flow rates, which further limits the range of application of the misting fan. A misting fan according to the preamble of claim <NUM> is found in <CIT>. How to provide a misting fan with compact structure, high power output, long battery life and convenient operation is a technical problem to be urgently solved by those skilled in the art.

This application provides a misting fan with a good misting effect and a convenient operation.

This application adopts the following technical solutions:
According to the invention, there is provided a misting fan, comprising: a host comprising a fan assembly and a nozzle, wherein the fan assembly comprises a fan blade and a motor configured to drive the fan blade, and the nozzle is located on the fan assembly and configured to spray water mist; and a rack configured to support the fan assembly; wherein the rack comprises an extending portion configured to be placed and extending in a plane; and the misting fan is provided with a moving wheel for walking, wherein the moving wheel is provided in the extending portion and a battery compartment configured to accommodate a power supply assembly to power the motor, wherein the battery compartment is arranged at an end of the rack away from the moving wheel; wherein an extending direction of the battery compartment and the extending portion obliquely intersect and form a included angle (a), wherein the included angle is greater than or equal to <NUM>° and less than or equal to <NUM>°.

In an example, the misting fan further includes a handle assembly cooperated with the moving wheel, and the handle assembly is provided on an end away from the moving wheel.

In an example, the handle assembly is set as a telescopic structure, and has a first state and a second state relative to the rack; when the handle assembly is in the first state relative to the rack, the handle assembly is in a contracted state; when the handle assembly is in the second state relative to the rack, the handle assembly is in an extended state.

In an example, when the handle assembly is in the second state, the misting fan walks at a relative angle to a walking road and the moving wheel serves as a pivot at this time.

In an example, the rack includes a first connecting assembly, a second connecting assembly and a third connecting assembly, the second connecting assembly is connected to the first connecting assembly and the third connecting assembly respectively, the first connecting assembly is connected to the second connecting assembly to form a first buffer portion; the first buffer portion obliquely intersects with the second connecting assembly and the second connecting assembly; the third connecting assembly is connected to the second connecting assembly to form a second buffer portion, the second buffer portion obliquely intersects with the third connecting assembly and the second connecting assembly.

In an example, the misting fan further includes a power supply assembly and a battery compartment configured to accommodate the power supply assembly; the third connecting assembly is provided on a side of the rack away from the moving wheel, the third connecting assembly is formed by a set of substantially parallel connecting rods, the battery compartment is at least partially disposed between the parallel-arranged connecting rods of the third connecting assembly.

In an example, a handle assembly is telescopic relative to the second connecting assembly, the handle assembly includes a grip portion, and the grip portion is provided on an outer side of the third connecting assembly, the grip portion and third connecting assembly are distributed at least partially around the battery compartment.

In an example, the rack partially surrounds the peripheral side of the fan assembly, and is connected to the fan assembly by at least a first pivot.

This application further adopts the following technical solutions:
A misting fan includes: a fan assembly including a fan blade and a motor configured to drive the fan blade; a nozzle located on the fan assembly and configured to spray water mist; and a rack configured to support the fan assembly. The misting fan further includes a moving wheel that provides the misting fan with a walking ability and is in contact with a placement plane. The misting fan at least includes a first standing posture and a second standing posture, and different positions of the rack are in contact with the placement plane and provide support when the misting fan is in different standing postures.

A misting fan includes: a fan assembly including a fan blade and a motor configured to drive the fan blade; a plurality of nozzles, wherein the plurality of nozzles are located on the fan assembly and configured to spray water mist; and a rack configured to support the fan assembly. The fan assembly further includes a control module configured to control the plurality of nozzles to reduce a total amount of a water output from the plurality of nozzles over a period of time, while ensuring that a pressure of a water output of the plurality of nozzles remains unchanged.

In an example, under an action of the control module, the plurality of nozzles have a time interval t between an nth spraying of water mist and an n+<NUM>th spraying of water mist, where n≥<NUM>.

In an example, under an action of the control module, some of the plurality of nozzles spray water mist, and the remaining ones of the plurality of nozzles stop spraying water mist.

In an example, each of the plurality of nozzles includes a switching structure configured to switch a diameter of a water outlet of the plurality of nozzles.

In an example, the fan assembly is connected to the rack by at least a pivot along which the fan assembly is movable relative to the rack.

In an example, the misting fan further includes a housing assembly. The housing assembly forms an accommodating space. The fan assembly is at least partially disposed in the accommodating space. The housing assembly includes a main body portion and a cover body, the nozzles are provided on the cover body, and the cover body is rotatable relative to the main body portion.

A misting fan includes: a fan assembly including a fan blade and a motor configured to drive the fan blade; a nozzle located on the fan assembly and configured to spray water mist; and a rack configured to support the fan assembly. The misting fan further includes a control module configured to control the nozzle to reduce a total amount of a water output from the nozzle over a period of time, while ensuring that a pressure of the water output of the nozzle remains unchanged; and under an action of the control module, the nozzle has a time interval t between an nth spraying of water mist and an n+<NUM>th spraying of water mist, where n≥<NUM>.

A control method of a misting fan is provided. The misting fan includes: a fan assembly including a fan blade and a motor configured to drive the fan blade to rotate; a plurality of nozzles, wherein the plurality of nozzles are located on the fan assembly and configured to spray water mist; a rack configured to support the fan assembly. Within a time T, when an outlet pressure of a single one of the plurality of nozzles is P, a total amount of a water output from the plurality of nozzles is Q. Under an action of a control module, within the time T, when the outlet pressure of the single one of the plurality of nozzles is P, the total amount of the water output from the plurality of nozzles is Q', and Q '<Q.

In an example, under the action of the control module, the plurality of nozzles have a time interval t between an nth spraying of water mist and an n+<NUM>th spraying of water mist, where n≥<NUM>; or, under the action of the control module, some of the plurality of nozzles spray water mist, and the remaining ones of the plurality of nozzles stop spraying water mist; or, under the action of the control module, a diameter of the plurality of nozzles decreases.

In an example, the misting fan includes a pump. When the pump is working, when it is detected that a working current of the pump is greater than a maximum rated working current, the control module determines that the pump is blocked, and the control module controls the pump to stop working. When the pump is working, when it is detected that the working current of the pump is less than the minimum rated working current for a continuous time t<NUM>, the control module determines that the pump is dry-heated, and the control module controls the pump to stop working.

A misting fan includes: a fan assembly including a fan blade and a motor configured to drive the fan blade; a nozzle located on the fan assembly and configured to spray water mist; a rack configured to support the fan assembly; a power supply assembly mounted to the rack and configured to power the misting fan; and a water inlet pipe with one end connected to the nozzle through a pipeline, and one end extending outward from the misting fan and connected to a water source.

In an example, the misting fan includes a water distribution pipe detachably connected to the water inlet pipe.

In an example, the water distribution pipe includes at least a first water distribution pipe and a second water distribution pipe, the first water distribution pipe is configured to connect to a first external water source, and the second water distribution pipe is configured to connect to a second external water source.

In an example, the first external water source is a static water source, and the second external water source is a flowing water source.

In an example, a quick release mechanism is provided at a connection between the water inlet pipe and the water distribution pipe.

In an example, the misting fan includes a pump, the pump connects the nozzle and the water inlet pipe through a pipeline, and the rack is further provided with a housing configured to accommodate the pump.

In an example, the water inlet pipe is provided with a pressure-stabilizing valve.

In an example, a diameter of a complete machine of the misting fan is greater than or equal to <NUM> and less than or equal to <NUM>.

The application provides a misting fan with high output power, strong stability and easy operation; provides a misting fan with high output power, water saving and good atomization effect; the misting fan is more convenient to use and can be connected to different external water sources more easily.

<FIG> show a misting fan <NUM>, which blows wind with water mist through functions of blowing and spraying, and can cool and humidify a preset site. The misting fan <NUM> provided in this example has a large shape and a high power, and can perform large-scale and continuous cooling and humidification of large venues, such as indoor and outdoor large stadiums, football fields, scenic spots, and the like. When the misting fan <NUM> works in a place far from a water source, the misting fan <NUM> can be connected to an external water source such as a bucket. When the misting fan <NUM> works indoors or in a place close to the water source, it can also be directly connected to a tap water pipe. Specifically, the misting fan <NUM> includes a host <NUM>, a rack <NUM> and a power supply assembly <NUM>. The host <NUM> and the power supply assembly <NUM> are both connected to the rack <NUM>, the host <NUM> is also electrically connected with the power supply assembly <NUM>, and the power supply assembly <NUM> is detachably connected to the rack <NUM>.

As shown in <FIG>, the host <NUM> includes a housing assembly <NUM>, a fan assembly <NUM> and a nozzle <NUM>. The housing assembly <NUM> forms an accommodating space 111a, and the fan assembly <NUM> is at least partially disposed in the accommodating space 111a. The housing assembly <NUM> includes a main body portion 111b and a cover body 111c. The main body portion 111b is formed around the accommodating space 111a, and the cover body 111c is arranged around the main body portion 111b and connected to the main body portion 111b. The cover body 111c also at least partially closes the main body portion 111b and forms a through hole through which airflow flows in or out. Specifically, the cover body 111c has a mesh structure and is arranged on two sides of the main body portion 111b. The cover body 111c is further formed with a cavity 111d for installing or supporting the fan assembly <NUM>, and the fan assembly <NUM> is installed to the host <NUM> through the cavity 111d. The cover body 111c is configured to be a structure rotatable with respect to the main body portion 111b. Specifically, the rotation is set to be smaller than the rotation speed of fan blades 112a, and the rotation of the cover body 111c drives the nozzle <NUM> to rotate, which is easier to combine with the rotating airflow, and plays a role of uniformly atomizing water mist. The water mist has a wider diffusion range, and further achieves a result of improving a cooling effect.

The fan assembly <NUM> includes the fan blades 112a and a motor 112b, and the motor 112b is used to drive the fan blades 112a to rotate around an axis of the motor 112b. The motor 112b is sealed by a waterproof material to prevent water mist from entering the motor under an action of the environment. Specifically, for example, the waterproof material can be a plastic film and so forth, and the motor is sealed by a plastic film through a process such as hot air and so on.

The nozzle <NUM> is used to spray water mist, and the nozzle <NUM> is mounted to the housing assembly <NUM> or the fan assembly <NUM>. When the power supply assembly <NUM> is installed to the host <NUM>, the misting fan <NUM> is activated. The water mist is sprayed from the nozzle <NUM> to the external environment, and the fan blade 112a rotates to generate an air flow to blow the water mist sprayed from the nozzle <NUM> into the air, thereby making the temperature of the air in the environment drops. In this example, the nozzle <NUM> is chosen to be a detachable and washable spray head, which is detachably connected to the housing assembly <NUM> or the fan assembly <NUM>. Further, when the spray head is detachable, the nozzle <NUM> is provided with a filter screen. The filter screen is used to filter the water supply, which can reduce the frequency of disassembly and cleaning of the spray head, and the filter screen is detachably connected to the spray head. It is to be understood that the nozzle <NUM> is also connected with a water pipe assembly <NUM>. The water pipe assembly <NUM> includes a water pump and a water-leading pipe. The water-leading pipe connects the water pump and the nozzle <NUM>. Under the action of the water pump, the water is sucked into the water-leading pipe and can be transported to the nozzle <NUM> in a high pressure state, so as to be sprayed in an atomized state. In order to avoid interference between the water leading pipe and other components, the housing assembly <NUM> is further provided with a receiving portion for accommodating the water leading pipe. As an implementation manner, the accommodating portion may be provided as a buckle for clamping the water leading pipe, or the housing assembly <NUM> itself forms an accommodating groove for accommodating or fixing the water leading pipe, so that the water-leading pipe can be closely attached to the housing assembly <NUM> to avoid interference with other components.

In order to illustrate the technical solution of the present application, a front side, a rear side, a left side, a right side, an upper side and a lower side as shown in <FIG> are further defined. As shown in <FIG>, in a first plane <NUM> perpendicular to the rotation axis of the motor 112b, the projection of the rack <NUM> in the first plane <NUM> along the direction of rotation axis is substantially rectangular. Therein, the rack <NUM> includes an extending portion that when placed extends in a plane parallel to a placement plane <NUM> of the external environment. Moving wheels are arranged within the extending portion, in particular at an end of the extending portion. The rack <NUM> partially surrounds a peripheral side of the fan assembly <NUM>, and is connected to the fan assembly through at least a first pivot <NUM>, and further, the rack <NUM> further includes a second pivot <NUM>. The fan assembly <NUM> can rotate as a whole around the above-mentioned pivots, thereby driving the water mist sprayed from the nozzle to cover a larger area.

The rack <NUM> includes a first connecting assembly <NUM>, a second connecting assembly <NUM> and a third connecting assembly <NUM>. The second connecting assembly <NUM> forms a fixed connection with the first connecting assembly <NUM> and the third connecting assembly <NUM> respectively. In fact, the first connecting assembly <NUM>, the second connecting assembly <NUM> and the third connecting assembly <NUM> can also be configured to be integrally formed, as long as the three of them meet the structural strength requirements. The rack <NUM> is formed with an accommodating groove for accommodating the host <NUM>, and the host <NUM> is at least partially disposed in the accommodating groove and is fixedly or detachably connected with the rack <NUM>. In this example, a first buffer portion <NUM> is provided at the connection between the second connecting assembly <NUM> and the first connecting assembly <NUM>, and the first buffer portion <NUM> obliquely intersects with the first connecting assembly <NUM> and the second connecting assembly <NUM> at the same time. A second buffer portion <NUM> is provided at the connection between the second connecting assembly <NUM> and the third connecting assembly <NUM>, and the second buffer portion <NUM> obliquely intersects with the second connecting assembly <NUM> and the third connecting assembly <NUM> at the same time. While saving the size of the whole machine, it is more convenient to switch the misting fan among different standing postures. In this example, the first connecting assembly <NUM>, the second connecting assembly <NUM> and the third connecting assembly <NUM> also extend in respective planes, thereby forming a plane on which the misting fan <NUM> can be placed. That is, the first connecting assembly <NUM>, the second connecting assembly <NUM>, and the third connecting assembly <NUM> can all be used as the extending portion and can be used for placement of the misting fan <NUM>.

Specifically, the first buffer portion <NUM> and the second buffer portion <NUM> are shell-shaped with multiple contact surfaces, and the first connecting assembly <NUM>, the second connecting assembly <NUM>, and the third connecting assembly <NUM> include a plurality of connecting rods that are spaced apart. The connecting rods are connected to the aforementioned buffer portions. The misting fan <NUM> includes at least a first standing posture and a second standing posture. When the misting fan is in different standing postures, different positions of the rack are in contact with the placement plane <NUM> and provide support. The standing postures mean that the fan can be stably supported on the placement plane <NUM> without relying on external force, and the above-mentioned standing postures do not exclude the situation that the misting fan moves along the placement plane <NUM> in these postures. In this example, part of end surfaces of the first and second buffer portions can be used as placement surfaces of the misting fan <NUM>. At this time, a plane where the end surfaces are located is tangent to a lower edge of the moving wheel <NUM>, and the second connecting assembly <NUM> is located above the plane or being flush with the plane. This enables the fan to stand stably in the first standing posture shown in <FIG>. This example has the second standing posture. For example, the first connecting assembly <NUM> is used as a base. At this time, an other end of the first connecting assembly <NUM> is provided with a shell-shaped end. The shell-shaped end, a lower edge of the moving wheel <NUM> and an end of the first buffer portion <NUM> is used as a support for standing. That is, forming the above-mentioned extending portion. The first connecting assembly <NUM> is located above or flush with the plane, which can ensure the stable standing of the misting fan.

As shown in <FIG>, <FIG> and <FIG>, the second buffer portion <NUM> is further provided with a battery compartment <NUM> for connecting the power supply assembly <NUM>. As an example, the power supply assembly <NUM> is provided as one or more battery packs that can be directly mounted to the battery compartment <NUM>. The first connecting assembly <NUM>, the second connecting assembly <NUM> and the third connecting assembly <NUM> all include a set of substantially parallel connecting rods. The battery compartment <NUM> is substantially disposed in a joint space of the substantially parallel connecting rods of the third connecting assembly <NUM> and fully utilizes the space between the third connection component <NUM> and the host <NUM>. Wherein, the battery compartment <NUM> actually further fully utilizes the joint space of the connecting rods of the third connecting assembly <NUM>. The battery compartment <NUM> is substantially in the structure of a rectangular parallelepiped, the interior of which is hollow, and can fit with the power supply assembly <NUM>. Inside the battery compartment <NUM>, it is further provided with a joint portion or a connection terminal (not shown in the figure) for connecting the battery pack, so that when the battery pack is inserted into the battery compartment <NUM>, the electrical connection with a control circuit can be realized. In this solution, the battery compartment <NUM> is further provided with a compartment cover 126a, which can rotate around a rotation axis and has a first position for closing a space in the battery compartment <NUM> and a second position for opening the space in the battery compartment <NUM>. It can be understood that the compartment cover 126a is disposed on an end of the battery compartment <NUM> away from the third connecting assembly <NUM>, so as to avoid generating interference with the third connecting assembly <NUM> when the compartment cover 126a is converted between the first position and the second position. The battery compartment <NUM> further extends along the extending direction of the second buffer portion <NUM> , so as to better fit with the connecting rods of the third connecting assembly <NUM>, so as to make the connection relation between the battery compartment <NUM> and the third connecting assembly <NUM> is closer. In fact, the battery compartment <NUM> is disposed near the second connecting assembly <NUM>, so that after the battery compartment <NUM> is installed with the battery pack, a center of gravity of the entire misting fan <NUM> is closer to a lower side. This makes the misting fan <NUM> more stable when it is placed and not easy to fall under the impact of an external environment. The second connecting assembly <NUM> substantially extends in a plane perpendicular to an up-down direction, and an outer contour of the battery compartment <NUM> is provided above the plane. That is, when the misting fan <NUM> is placed normally, the outer contour of the battery compartment <NUM> does not generate interference with the second connecting assembly <NUM>, and a lower surface of the second connecting assembly <NUM> is used as the contact surface. In this example, it is further provided that an acute angle α of an included angle of the placement plane <NUM> between the extending direction of the battery compartment <NUM> is greater than or equal to <NUM>° and less than or equal to <NUM>°, so as to match with the second buffer portion <NUM>.

In this example, since a rated power of the misting fan <NUM> is large, in order to satisfy the function output of the misting fan <NUM> for a long time, the power supply assembly <NUM> is provided to have a large capacity, so that it has a large weight. In addition, the host <NUM> occupies a large space in the up-down direction and in a left-right direction due to a need to satisfy the blowing or spraying of a large area. Specifically, a size of the host <NUM> in the up-down direction is greater than or equal to <NUM> and less than or equal to <NUM>; a size of the host <NUM> in the left-right direction is greater than or equal to <NUM> and less than or equal to <NUM>. When the host <NUM> is installed on the rack <NUM>, a diameter of the entire misting fan <NUM> is greater than or equal to <NUM> and less than or equal to <NUM>. Specifically, a size of the entire misting fan <NUM> in the up-down direction is set to be greater than or equal to <NUM> and less than or equal to <NUM>, and a size of the entire misting fan <NUM> in the left-right direction is set to be greater than or equal to <NUM> and less than or equal to <NUM>. In this example, the host <NUM> of the misting fan <NUM> is further provided with a handle portion 111e configured to be lifted and carried, and the handle portion 111e further occupies a preset height in the up-down direction, so that a size of the entire machine of the misting fan <NUM> in the up-down direction is greater than or equal to <NUM> and less than or equal to <NUM>. Through the above arrangement, an air volume that can be blown out by the misting fan <NUM> provided in this example can reach <NUM> cfm, thereby achieving a better cooling effect.

As shown in <FIG>, as an example, the misting fan <NUM> is further provided with the moving wheel <NUM> configured to move. Specifically, the moving wheel <NUM> is provided on the first buffer portion <NUM> and can rotate around a rotation axis. Specifically, the rotating shaft is provided on the first connecting component <NUM> or the second connecting component <NUM>. As an example, two moving wheels <NUM> are provided, which are respectively located on the connecting rods of the first connecting assembly <NUM> or the second connecting assembly <NUM>. It can be understood that one or more moving wheels <NUM> can also be provided, so that they can be optionally provided on the connecting rods and are configured to move the misting fan <NUM>. The moving wheel <NUM> has a circumferential outer contour, and when it is mounted to the first connecting assembly <NUM> or the second connecting assembly <NUM>, its outer contour is substantially flush with the placement plane <NUM> or is located on an upper side of the placement plane <NUM>. Thus, when the misting fan <NUM> is normally placed, the outer contour of the moving wheel <NUM> does not interfere with the second connecting assembly <NUM>, and a lower surface of the second connecting assembly <NUM> is used as a contact surface, or the outer contour of the moving wheel <NUM> and the lower surface of the second connecting assembly <NUM> are used as the contact surface at the same time. In order to facilitate the movement of the misting fan <NUM>, a handle assembly <NUM> which is matched with the moving wheel <NUM> is further provided. Specifically, the handle assembly <NUM> includes a main body portion <NUM> extending substantially in a linear direction and a grip portion <NUM> connected to the main body portion <NUM>. The grip portion <NUM> includes an inner contour and an outer contour. The inner contour is arranged around the battery compartment <NUM>, and the outer contour is configured to be flush with the placement plane <NUM> in the up-down direction or to be on the upper side of the placement plane <NUM>. The grip portion <NUM> includes a first grip portion 152a extending in the same direction as the battery compartment <NUM> and a second grip portion 152b substantially parallel to the placement plane <NUM>. The first grip portion 152a includes two oppositely disposed units, and the second gripping portion 152b is configured as a semi-enclosed annular member connecting the two first gripping portions 152a. Since the misting fan <NUM> of this example has various standing postures, the above structure combined with the positions of the third connecting component <NUM> and the battery compartment <NUM> can fully protect the safety of the battery compartment <NUM> in different standing postures. Even when the fan is in a walking state, it can also improve the stability of the battery pack and reduce the vibration of the battery pack. Based on the size of the misting fan <NUM> in this example, the arrangement of the battery compartment <NUM> can make the whole machine have a more stable center of gravity.

The handle assembly <NUM> is further provided as a telescopic structure, and is arranged on an end of the second connecting assembly <NUM> away from the moving wheel <NUM>. In this example, the connecting rods of the second connecting assembly <NUM> are provided as hollow structure, which can be configured to accommodate at least part of the handle assembly <NUM>.

The handle assembly <NUM> has a first state and a second state. When the handle assembly <NUM> is in the first state, the handle assembly <NUM> is in a retracted state, and at this time, the inner contour of the grip portion <NUM> is substantially fitted with or close to the battery compartment <NUM>. The main body portion <NUM>, the first grip portion 152a and the second grip portion 152b surround each side surface of the battery compartment <NUM>, respectively. When the handle assembly <NUM> is in the second state, the handle assembly <NUM> is in an extended state. At this time, the main body portion <NUM> of the handle assembly <NUM> protrudes from the second connecting assembly <NUM> to a preset length, so as to facilitate holding. At this time, it is possible to make the misting fan <NUM> is dragged at a certain angle with the ground, and can roll forward along the ground under the action of rollers. In order to facilitate the operation, when the misting fan <NUM> is dragged at the certain angle with the ground, its center of gravity is set to be located between the grip portion <NUM> and the moving wheel <NUM>. More specifically, when the misting fan <NUM> is dragged at the certain angle with the ground, its center of gravity is set close to the moving wheel <NUM>.

As shown in <FIG> and <FIG>, the misting fan <NUM> is further provided with a control module <NUM> configured to control an output mode and an output power. The control module <NUM> is provided on the third connection assembly <NUM>, located between the two connecting rods of the third connection assembly <NUM>, and is located at an upper end of the battery compartment <NUM>. Specifically, a panel of the control module <NUM> includes a power button <NUM>, an air volume display screen <NUM>, an air volume control button <NUM>, a water mist control button <NUM>, a top-gear button <NUM> and a first indicator light <NUM>. The power control button is used to control the misting fan <NUM> to be turned on or off, and can control the misting fan <NUM> to enter a remote control mode in a power-on state. In addition, the air volume display screen <NUM> includes a plurality of gear displays, and can reflect a current output air volume in real time. The air volume control button <NUM> includes a first control button 163a and a second control button 163b. The first control button 163a is used to decrease the air volume, and the second control button 163b is used to increase the air volume. The water mist control button <NUM> is used to control the water mist to be turned on or off. When the water mist is turned off, the spraying fan <NUM> can be used as a normal fan, which only blows air. When the water mist is turned on, the spraying fan <NUM> can perform spraying and blowing actions at the same time. As an example, the water mist control button <NUM> further includes a water mist multi-gear adjustment button 164a, and the water mist multi-gear adjustment button 164a controls a output power or pressure of the water pump through a circuit, and then controls the water mist to be sprayed at different sizes or rates and display on the display screen, so as to meet the different needs of different application scenarios. The top-gear button <NUM> is used to control the fan to directly connect to the motor to reach a maximum power and output a maximum air volume. When the top-gear button <NUM> is pressed, the second indicator light <NUM> lights up or flashes and indicates that the misting fan has reached the maximum air volume. When the maximum air volume is reached by pressing the second control button 163b for many times, the second indicator light <NUM> also lights up or flashes accordingly. In other examples, the second indicator light <NUM> may also be used to display the power level of the battery assembly.

The present example further includes a control method of nozzles. The control module <NUM> can control the nozzles <NUM> to reduce the total amount of water output from the nozzles <NUM> for a period of time, while ensuring that a water output pressure from the nozzles <NUM> remains unchanged. That is, within a time T, when an outlet pressure of a single nozzle is P, a total amount of a water output from the nozzles is Q, and this process is recorded as a maximum water volume required under a given nozzle outlet pressure. Under an action of the control module, within the time T, when the outlet pressure of a single nozzle is P, the total amount of water output from the nozzles is Q', and this Q'<Q. Specifically, under the action of the control module, the water volume can be reduced to <NUM>%~<NUM>% of the maximum water output Q, that is, <NUM>. 1Q≤Q'≤<NUM>. Further, the water volume can be reduced to <NUM>% or <NUM>% of the maximum water output Q, and the misting effect and cooling performance can also be guaranteed.

The above example for reducing water volume includes but is not limited to the following examples:
In an example, the control module <NUM> controls the nozzles <NUM> to have a time interval t between an nth spraying of water mist and an n+<NUM>th spraying of water mist, where n≥<NUM>. The control module realizes a pulsed water misting by controlling a start and stop of the water pump. An original outlet pressure is maintained when the nth and n+<NUM>th spraying of water mist, which can ensure the required atomization effect and reduce the required water volume at the same time. As a user, when using the misting fan, a continuous water spray will affect the user on the contrary, causing it to form accumulated water spots at a sprayed place. As the pulsed water spray has the required atomization effect, a continuous blowing is combined with an interval time, so that the moisture on the user's skin, a surface of the clothing and a surface of working piece evaporates, keeping the work dry. In this example, a rotation function of the fan assembly can be combined to make the water mist cover a wider range. Specifically, when the misting fan <NUM> is in a spray interval, the control module <NUM> can control the misting fan <NUM> to rotate at a certain angle, or, when the misting fan <NUM> is in the spray interval, the control module <NUM> can control the misting fan <NUM> to reduce the rotation speed. That is, the misting fan <NUM> swings fast during spraying and swings slow after spraying and so on.

In another example, the control module <NUM> controls a part of the nozzles <NUM> to spray water mist, and the remaining nozzles stop spraying water mist. At the same time, the control module <NUM> calculates and reduces a water supply by reducing a working power and so on of the pump, so that the outlet pressure of the nozzles maintains at a predetermined pressure, the predetermined pressure is greater than or equal to <NUM> PSI and less than or equal to <NUM> PSI, and can be selected to be greater than or equal to <NUM> PSI and less than or equal to 600PSI. In this example, the water pipe assembly <NUM> connecting each nozzle <NUM> includes a plurality of individually controlled pipelines, or the water pipe assembly <NUM> is composed of a main water circuit and a plurality of branch circuits corresponding to each of the nozzles <NUM>. The connection between the branch circuit and the main water circuit is provided with a valve controlled by the control module. The valve is used to control the opening and closing of each branch. Since in this example, the nozzles <NUM> are equally spaced on a circumference of the fan, when some of the nozzles are controlled to be open and some of the nozzles are controlled to close, the opened nozzles should be spaced and evenly distributed on the misting fan.

In another example, the control module <NUM> controls at least part of the nozzles <NUM> to reduce a diameter of a water outlet. Or the diameters of the nozzles <NUM> are reduced by the user's operation. The above-mentioned methods for reducing the diameter of the nozzles include, but are not limited to rotating nozzles and so on. Specifically, switching structures are provided within the nozzles, and the control module <NUM> or the user can change the diameters of the nozzles <NUM> through the switching structures. At the same time, the control module <NUM> calculates and reduces a water supply by reducing a working power and so on of the pump, so that the outlet pressure of the nozzles maintains at a predetermined pressure, the predetermined pressure is greater than or equal to <NUM> PSI and less than or equal to <NUM> PSI, and can be selected to be greater than or equal to <NUM> PSI and less than or equal to 600PSI.

This example also includes a control method of a pump for protecting the operation of the pump. when the pump is working, when it is detected that a working current of the pump is greater than a maximum rated working current, the control module <NUM> determines that the pump is blocked, and the control module <NUM> controls the pump to stop working. When the pump is working, when it is detected that the working current of the pump is less than the minimum rated working current for a continuous time t<NUM>, the control module <NUM> determines that the pump is dry-heated, and the control module <NUM> controls the pump to stop working. As shown in <FIG>, the panel of the control module <NUM> further includes a second indicator light <NUM>. The second indicator light is used to display whether the pump is in a fault state. When the pump is in a blocked or a dry-heated condition, the control module <NUM> controls the second indicator light <NUM> to flash to prompt the user.

When the misting fan <NUM> is set for a remote control through a power control, the misting fan <NUM> can be controlled and operated through other clients or platforms. As an example, the misting fan <NUM> can be controlled via a Bluetooth connection. It is to be understood that the misting fan <NUM> can also be controlled by other means, such as being controlled by communication control. In this example, when the misting fan <NUM> is controlled via the Bluetooth, it can control a wind speed of the misting fan <NUM>, an amount of water sprayed, a startup and shutdown of the machine and a timed startup and shutdown of the machine, and can also control the switch of the indicator lights of the display screen.

In a second example as shown in <FIG> and <FIG>, a misting fan <NUM> has a part of the structure that is different from the previous example, and only the difference from the misting fan <NUM> of a first example is described here. The same structure uses the same reference signs, and is not stated again.

The misting fan <NUM> includes a water inlet pipe <NUM>, and the water inlet pipe <NUM> is connected to a pump. In this example, the pump is installed in the battery compartment <NUM>, and the water inlet pipe <NUM> is led out from the battery compartment <NUM>. Since both the battery pack and the pump are arranged in the battery compartment <NUM>, in order to ensure the safety of the battery pack, a partition plate is provided in the battery compartment to divide an accommodating space into a plurality of mutually closed chambers.

The rack <NUM> is provided with a fixing portion <NUM> to fix and receive the water inlet pipe <NUM>. Specifically, according to the length of the water inlet pipe <NUM>, there may be a plurality of fixing portions <NUM>, which are respectively provided on the first connecting assembly, the second connecting assembly and the third connecting assembly. Since an end of the water inlet pipe <NUM> is generally equipped with a filter device <NUM>, in order to ensure the cleanness of the filter device <NUM>, the fixing portion at an end of the water inlet pipe <NUM> is located away from a position of the battery compartment <NUM>, and is specifically located in the middle and upper portion of the first connecting assembly <NUM>. Thus, the water inlet pipe <NUM> starting from the third connecting assembly <NUM> extends along the second connecting assembly <NUM>, and extends from bottom to top to the middle portion of the first connecting assembly <NUM>. At this time, the lower end of the filter device <NUM> is fixed in the fixing portion <NUM> upwards, and the water inlet pipe is <NUM> is in a first storage state <NUM>.

An upper end of the first connecting assembly <NUM> includes a housing surface parallel to a horizontal plane, or includes a groove, which can be used as a placement position of the water inlet pipe <NUM>. At this time, the water inlet pipe <NUM> is in a second storage state, and this state can be used as a temporary placement position of the water inlet pipe <NUM>, a fixing portion may be arranged as a storage fixing position.

As shown in <FIG> and <FIG>, the misting fan <NUM> further includes a water outlet pipe <NUM>. The water outlet pipe <NUM> is led out from the battery compartment <NUM> and introduced into the fan assembly through the first connecting assembly <NUM> and the second pivot <NUM> in sequence. In this example, the nozzles are arranged in a center stand <NUM> of a cover. Since there are multiple nozzles, and they are distributed at equal distances along the center stand <NUM>, an annular water diversion pipe <NUM> is arranged in the center stand <NUM>, supplying the water source in the water outlet pipe <NUM> to the nozzles respectively.

In a third example shown in <FIG> , a misting fan <NUM> can also be provided with a hook <NUM> matched with the handle portion 111e or the rack <NUM>, so that the misting fan <NUM> can be hang to a preset height or a preset position. In this example, for the sake of convenience, the same structures use the same reference signs as those in the first and second examples, and only the differences from the first and second examples are described here.

The hook <NUM> is detachably connected to the misting fan <NUM>. The hook <NUM> includes a first hook <NUM>, a second hook <NUM> and a connecting portion <NUM>, and the connecting portion <NUM> connects the first hook <NUM> and the second hook <NUM>. The first hook <NUM> is used for detachable connection with the second connecting assembly <NUM>, or detachable connection with the handle portion 111e. The second hook <NUM> is used for detachable connection with a fixture in the external environment. The connecting portion <NUM> extends along a first direction <NUM>, and the first direction <NUM> may be parallel to a setting plane of the fan assembly, may also be perpendicular to the setting plane, or may be at a certain angle to the setting plane, or the connecting portion <NUM> has a mechanism which can adjust the relative relationship between the first direction <NUM> and the setting plane, so as to adapt to different external environments. In other examples, the hook <NUM> may also be a flexible structure or other detachable structures in other forms, which is not limited herein.

In a fourth example as shown in <FIG>, a misting fan <NUM> has a part of the structure that is different from the previous example. Only the differences from the misting fan <NUM> of the first example are described here, and the same structure uses the same reference sings, and is not stated again.

The misting fan <NUM> includes a water inlet pipe <NUM>, a first end of the water pipe <NUM> is connected to the nozzles <NUM> through a pipeline, and a second end extends outward from the misting fan <NUM> and is connected to a water source. The first end of the water inlet pipe <NUM> can be connected to a pump or an internal waterway system. The internal waterway system refers to the waterway system that connects the nozzles <NUM> inside the misting fan <NUM>. When the pump is installed in the battery compartment <NUM>, the water inlet pipe <NUM> may extend from the battery compartment <NUM>, or be integrated inside the housing of the rack and extend from one side of the misting fan <NUM>.

The misting fan <NUM> is further provided with a water distribution pipe <NUM> connected to the water inlet pipe <NUM>, and the water distribution pipe <NUM> is detachably connected with the water inlet pipe <NUM>. The water distribution pipe <NUM> includes at least a first water distribution pipe <NUM> and a second water distribution pipe <NUM>. The first water distribution pipe <NUM> is used to connect to a first external water source, and the second water distribution pipe <NUM> is used to connect to a second external water source. The first external water source is a static water source, and the second external water source is a flowing water source. The static water source is to be understood as water contained in a reservoir, such as water in a bucket. The second external water source is specifically the flowing water source, and the flowing water source is to be understood as a water source having a certain flow rate, such as tap water.

A quick release mechanism <NUM> is provided at the connection between the water inlet pipe <NUM> and the water distribution pipe <NUM>. The quick release device <NUM> includes a first connecting head <NUM> provided at an end of the water inlet pipe <NUM> and a second connecting head <NUM> disposed at an end of the water distribution pipe <NUM>. The first connection head <NUM> and the second connection head <NUM> are configured to be detachably connected to each other. Specifically, they can be connected in the form of threaded caps and threads, or they can be connected by means of compression type, socket type, and so on, which is not limited herein.

The water distribution pipe <NUM> is provided with a connection head or a filter device, and the connection head is used to connect an external dynamic water source or to extend the pipeline. A structure for accommodating the water inlet pipe <NUM> or the water distribution pipe <NUM> is also arranged in the rack or the battery compartment.

Claim 1:
A misting fan (<NUM>, <NUM>, <NUM>, <NUM>), comprising:
a host (<NUM>) comprising a fan assembly (<NUM>) and a nozzle (<NUM>), wherein the fan assembly comprises a fan blade (112a) and a motor (112b) configured to drive the fan blade, and the nozzle is located on the fan assembly and configured to spray water mist; and
a rack (<NUM>) configured to support the fan assembly;
wherein the rack comprises an extending portion configured to be placed and extending in a plane parallel to a placement plane (<NUM>) of the external environment; and
the misting fan is provided with a moving wheel (<NUM>) for walking, wherein the moving wheel is provided in the extending portion and a battery compartment (<NUM>) configured to accommodate a power supply assembly (<NUM>) to power the motor, wherein the battery compartment is arranged at an end of the rack away from the moving wheel;
wherein an extending direction of the battery compartment and the extending portion obliquely intersect and form a included angle (α), characterized in that the included angle is greater than or equal to <NUM>° and less than or equal to <NUM>°.