Patent Description:
<CIT> describes a mister fan including a base, a motor supported by the base, a blade assembly supported by the base and driven by the motor, a first conduit extending from the base and configured to receive liquid from a first fluid source, and a second conduit extending from the base and configured to receive liquid from a second fluid source that is different than the first fluid source. The mister fan also includes a spray nozzle unit supported by the base adjacent the blade assembly. The spray nozzle unit is in fluid communication with the first conduit and the second conduit to selectively receive liquid from the first and second conduits.

The existing misting fan generally uses external mains electricity as a power source so that the misting fan can only be used where there is a socket, which reduces the convenience to use the misting fan and also limits the places where the misting fan can be used. Moreover, a nozzle on the existing misting fan is easily clogged and then needs to be replaced by a new nozzle, which increases the cost of use and also reduces operation efficiency. Especially when the misting fan is operating, if the nozzle is clogged and cannot be replaced in time, the misting fan cannot operate, either. Further, if the nozzle of the misting fan is not completely clogged, a user may not notice that the nozzle has a problem and will not replace the nozzle in time, thereby seriously affecting the cooling effect of the misting fan.

To solve the defects in the existing art, an object of the present disclosure is to provide a misting fan that is convenient to carry and easy to clean.

To achieve the preceding object, the present invention is defined by the appended claims.

The present disclosure has the following beneficial effects: the misting fan is more convenient to use, more widely used, and convenient for a user to clean.

A misting fan <NUM> shown in <FIG> in embodiment one is configured to spray water. The first embodiment conforms to the present invention, except for the nozzle. The water sprayed into air can cool the environment. The misting fan <NUM> may be applied to outdoor places such as a basketball court, a park, and a playground. When used outdoors, the misting fan <NUM> may use water in a bucket. The misting fan <NUM> may also be applied to indoor places such as a shopping mall, a factory, and a warehouse. When used indoors, the misting fan <NUM> may be connected to a tap water pipe.

As shown in <FIG>, the misting fan <NUM> includes a main machine <NUM> and a first battery pack <NUM>, where the first battery pack <NUM> is detachably installed to the main machine <NUM>. In this manner, the misting fan <NUM> can be conveniently carried outdoors for operation. The misting fan <NUM> with the first battery pack <NUM> is more convenient to use especially in places where there is no convenient power source such as the park.

The main machine <NUM> includes a support assembly 10a, a fan assembly <NUM>, and a nozzle <NUM>. The support assembly 10a is configured to support the fan assembly <NUM> and the nozzle <NUM>, and the support assembly 10a includes a base <NUM> and a support arm <NUM>.

The base <NUM> is configured to support the entire misting fan <NUM> so that the misting fan <NUM> is placed on a workbench. The support arm <NUM> is connected to the base <NUM> and disposed at least partially above the base <NUM>. An end of the support arm <NUM> is connected to the base <NUM>, and the other end of the support arm <NUM> is connected to the fan assembly <NUM> so that the support arm <NUM> supports the fan assembly <NUM>. The fan assembly <NUM> includes fan blades <NUM> and an electric motor <NUM>, where the electric motor <NUM> is configured to drive the fan blades <NUM> to rotate around an electric motor axis 100a. The nozzle <NUM> is configured to spray the water and installed to the support assembly 10a or the fan assembly <NUM>. When the first battery pack <NUM> is installed to the main machine <NUM>, the misting fan <NUM> is started, the water is sprayed from the nozzle <NUM> into an external environment, and the fan blades <NUM> rotate to generate an airflow to blow the water sprayed from the nozzle <NUM> into the air so that the temperature of the air in the environment drops.

The first battery pack <NUM> is detachably installed to the support assembly 10a. In this embodiment, the first battery pack <NUM> is installed to the base <NUM>. It is to be understood that, in other embodiments, the first battery pack <NUM> may also be installed to the support arm <NUM>. It is to be understood that all parts other than the fan blades <NUM> and the electric motor <NUM> driving the fan blades <NUM> to rotate in the misting fan <NUM> may be considered to belong to the support assembly 10a. In this manner, the first battery pack <NUM> may be installed to any part of the support assembly 10a.

As shown in <FIG>, the base <NUM> is formed with a coupling portion <NUM> for coupling the first battery pack <NUM>. The coupling portion <NUM> surrounds and forms a battery compartment 111a, where the first battery pack <NUM> is capable of being installed in the battery compartment 111a. In this embodiment, a second battery pack <NUM> is also capable of being installed in the battery compartment 111a. The first battery pack <NUM> has a first volume and a first capacity, and the second battery pack <NUM> has a second volume and a second capacity. The first volume is greater than the second volume, and the first capacity is greater than the second capacity. The support assembly 10a further includes a battery cover <NUM>, and the first battery pack <NUM> is connected to the coupling portion <NUM>. The battery cover <NUM> has an open state and a closed state relative to the coupling portion <NUM>. When the battery cover <NUM> is in the open state, the battery cover <NUM> allows the first battery pack <NUM> or the second battery pack <NUM> to be detached from the battery compartment 111a. When the battery cover <NUM> is in the closed state, the battery cover <NUM> and the coupling portion <NUM> jointly surround and form an accommodation cavity <NUM> for accommodating the first battery pack <NUM> or the second battery pack <NUM>, and at this time, the battery cover <NUM> covers the battery compartment 111a. An access terminal 111b is disposed in the battery compartment 111a and electrically connected to the first battery pack <NUM> or the second battery pack <NUM>. When the battery cover <NUM> is in the open state, the first battery pack <NUM> is capable of being inserted into the battery compartment 111a, and the second battery pack <NUM> is also capable of being inserted into the battery compartment 111a. A user can selectively insert the first battery pack <NUM> or the second battery pack <NUM> into the battery compartment 111a according to requirements. The battery compartment 111a can fit with not only the first battery pack <NUM> but also the second battery pack <NUM>. Therefore, the user can install battery packs with different volumes or different capacities according to requirements, which improves the adaptability of the misting fan <NUM> and prolongs the lifetime of the misting fan <NUM>. When the battery cover <NUM> is in the closed state, the battery cover <NUM> and the coupling portion <NUM> surround and form the accommodation cavity <NUM>, and the accommodation cavity <NUM> can accommodate not only the first battery pack <NUM> but also the second battery pack <NUM>. In this manner, the user can select and install a battery pack with a larger volume or a larger capacity to the misting fan <NUM>.

In this embodiment, the first battery pack <NUM> and the second battery pack <NUM> have the same nominal voltage, a nominal voltage of the first battery pack <NUM> is greater than or equal to 20V, and a nominal voltage of the second battery pack <NUM> is greater than or equal to 20V. Further, the nominal voltage of the first battery pack <NUM> is greater than or equal to 40V, and the nominal voltage of the second battery pack <NUM> is greater than or equal to 40V so that the first battery pack <NUM> or the second battery pack <NUM> outputs greater power and has a greater capacity, thereby improving the operation time and efficiency of the misting fan <NUM>.

Of course, it is to be understood that the battery compartment 111a of the main machine <NUM> may also be adapted to a third battery pack <NUM>, and the third battery pack <NUM> may have a third volume and a third capacity, thereby further improving the adaptability of the misting fan <NUM>.

The support arm <NUM> supports the fan assembly <NUM> on an upper side of the base <NUM>, and the fan assembly <NUM> can rotate relative to the support arm <NUM>. The coupling portion <NUM> is disposed on a lower side of the fan assembly <NUM>. When installed in the battery compartment 111a, the first battery pack <NUM> is located on the lower side of the fan assembly <NUM>. In this manner, the coupling portion <NUM> does not interfere with the rotation of the fan assembly <NUM> and does not affect an air inlet region on a rear side of the fan assembly <NUM>, thereby improving blowing efficiency. In this embodiment, both the first battery pack <NUM> and the second battery pack <NUM> can be installed in the battery compartment 111a. Due to a relatively large volume of the first battery pack <NUM>, a relatively large volume is provided in the battery compartment 111a. Therefore, in this embodiment, the first battery pack <NUM> is inserted into the battery compartment 111a along a direction of a first straight line 100b, that is, the coupling portion <NUM> is formed with a guide structure 111c guiding the first battery pack <NUM> or the second battery pack <NUM> to be coupled to the battery compartment 111a along the direction of the first straight line 100b. When the misting fan <NUM> is placed on a plane, the first straight line 100b obliquely intersects with the plane. In this manner, on one hand, in the case where a position of the fan assembly <NUM> in an up-and-down direction perpendicular to the plane is not too high, the coupling portion <NUM> can be prevented from shielding the air inlet region of the fan assembly <NUM> as much as possible. On the other hand, the volume in the battery compartment 111a can be increased so that the battery pack with the larger volume or the larger capacity can be installed to the misting fan <NUM>.

In this embodiment, when the misting fan <NUM> is placed on the plane, the first straight line 100b intersects with the plane so as to form an angle greater than <NUM> degrees and less than or equal to <NUM> degrees. A height of the battery compartment 111a in the up-and-down direction is greater than or equal to <NUM> and less than or equal to <NUM>. In this manner, the volume in the battery compartment 111a is large enough so that the battery compartment 111a can be adapted to the battery pack with the larger volume.

In a front-and-rear direction, the battery compartment 111a is disposed at least partially on the rear side of the fan assembly <NUM> so that an operation assembly <NUM> shown in <FIG> can be disposed in a region of the base <NUM> on a front side of the fan assembly <NUM>. When the battery cover <NUM> is in the open state, the battery compartment 111a is open backwards, and the first battery pack <NUM> or the second battery pack <NUM> is inserted into the battery compartment 111a from a rear side of the main machine <NUM>.

The battery cover <NUM> is rotatably connected to the coupling portion <NUM> around a first axis 100c. When the misting fan <NUM> is disposed on a plane, the first axis 100c is parallel to the plane. When the misting fan <NUM> is disposed on the plane, the user can open the battery cover <NUM> backwards so that the battery cover <NUM> is in the open state, and at this time, an outer surface of the battery cover <NUM> can be supported on the plane and the user does not need to hold the battery cover <NUM> with one hand and can conveniently detach the first battery pack <NUM> or the second battery pack <NUM>, which improves the convenience of operation. The battery cover <NUM> is disposed on a rear side of the coupling portion <NUM>, and the guide structure 111c guides the first battery pack <NUM> to be inserted into the battery compartment 111a in a direction oblique relative to the plane so that a region on the rear side of the coupling portion <NUM> is enough for the battery cover <NUM> to be opened. In this manner, when the misting fan <NUM> is placed on the plane, an angle through which the battery cover <NUM> rotates from a closed position to an open position is greater than <NUM> degrees. Therefore, when the battery cover <NUM> rotates to the open position, more space is reserved on an upper side of the battery cover <NUM> to allow the first battery pack <NUM> or the second battery pack <NUM> to be detached from the battery compartment 111a. Further, the problem that when the misting fan <NUM> is placed on the plane, the battery cover <NUM> cannot be opened backwards to the open position to allow the first battery pack <NUM> to be detached from the battery compartment 111a can be avoided, that is, the problem that the battery cover <NUM> cannot be completely opened can be avoided.

A water leakage hole 111d is disposed on a bottom surface of the battery compartment 111a. When entering the battery compartment 111a, water can flow out of the battery compartment 111a through the water leakage hole 111d.

When the fan assembly <NUM> is in an upright state as shown in <FIG> and the battery cover <NUM> is in the closed state, a part of the whole formed by the coupling portion <NUM> and the battery cover <NUM> that is disposed on the rear side of the fan assembly <NUM> has a dimension L in the front-and-rear direction, where the dimension L is greater than or equal to <NUM> and less than or equal to <NUM> so that the volume in the battery compartment 111a can be increased.

In this embodiment, a ratio of the first capacity of the first battery pack <NUM> to the second capacity of the second battery pack <NUM> is greater than or equal to <NUM>. Alternatively, in other embodiments, the ratio of the first capacity of the first battery pack <NUM> to the second capacity of the second battery pack <NUM> is greater than or equal to <NUM>.

The first capacity of the first battery pack <NUM> is also greater than <NUM> AH, thereby increasing the lifetime of the first battery pack <NUM> and increasing the operation duration of the misting fan <NUM>. More specifically, the first battery pack <NUM> may include a first cell group and a second cell group, where multiple cell units in the first cell group are connected in series. Multiple cell units may also be disposed in the second cell group. The first cell group and the second cell group are connected in parallel. That is, two cell groups connected in parallel are disposed in the first battery pack <NUM>. Of course, it is to be understood that in other embodiments, three cell groups connected in parallel may be disposed in the first battery pack <NUM>, thereby further increasing the lifetime of the first battery pack <NUM>. The first capacity of the first battery pack <NUM> may also be greater than or equal to <NUM> AH.

As shown in <FIG> and <FIG>, two nozzles <NUM> are provided, and two installation pieces <NUM> are connected on an outer side of the fan assembly <NUM>. The two installation pieces <NUM> are respectively disposed on two sides of the fan assembly <NUM>. The nozzle <NUM> is installed to the installation piece <NUM>, and the whole formed by the nozzle <NUM> and the installation piece <NUM> can rotate with the fan assembly <NUM>. The nozzle <NUM> is detachably installed to the installation piece <NUM>. In this manner, when a water flow channel or a water outlet hole in the nozzle <NUM> is clogged by scale or debris, the user can conveniently detach the nozzle <NUM> to replace the nozzle <NUM> with a new one.

As shown in <FIG> and <FIG>, the main machine <NUM> further includes a waterway system <NUM> configured to deliver external water to the nozzle <NUM>. The waterway system <NUM> includes a first water pipe assembly <NUM> and a second water pipe assembly <NUM>. The first water pipe assembly <NUM> is configured to deliver external water from a first external water source to the nozzle <NUM>. The first external water source may specifically be a static water source. The static water source may be understood as water contained in a storage such as the bucket. The second water pipe assembly <NUM> is configured to deliver external water from a second external water source to the nozzle <NUM>. The second external water source is specifically a flowing water source. The flowing water source may be understood as a water source with a certain flowrate such as tap water. When used in a place with the flowing water source, the misting fan <NUM> may use the flowing water source so that the misting fan <NUM> can operate for a relatively long time without replacing the water source. When used in a place where there is no flowing water source, the misting fan <NUM> may use the water in the storage, thereby improving the convenience to use the misting fan <NUM>.

Specifically, the first water pipe assembly <NUM> includes a first water pipe 161a, a third water pipe 161b, and a first connection piece 161c. The misting fan <NUM> further includes a pump <NUM> installed to the first water pipe assembly <NUM>. The first water pipe 161a includes a first end 161d and a third end 161e. The first connection piece 161c is installed to the first end 161d of the first water pipe 161a, and the first connection piece 161c is configured to be connected to the first external water source. The second end 161c of the first water pipe 161a is connected to an input end of the pump <NUM>, and the third water pipe 161b is connected to an output end of the pump <NUM>. The pump <NUM> pumps the water in the storage into the first water pipe 161a and then outputs the water to the third water pipe 161b.

The base <NUM> surrounds and forms an accommodation space 11a, and the pump <NUM> is disposed in the accommodation space 11a. The battery compartment 111a is also formed by the base <NUM>. In this embodiment, the accommodation space 11a and the battery compartment 111a are disposed separately so that water vapor can be prevented from entering the battery compartment 111a.

The second water pipe assembly <NUM> includes a second water pipe 162a and a second connection piece 162b, and the second connection piece 162b is configured to be connected to the second external water source. The second water pipe 162a includes a second end 162c and a fourth end 162d, and the second connection piece 162b is installed to the second end 162c of the second water pipe 162a.

In this embodiment, a part of the first water pipe assembly <NUM> is disposed in the base <NUM> and a part of the first water pipe assembly <NUM> is disposed in the fan assembly <NUM>. The second water pipe assembly <NUM> is disposed outside the base <NUM>. In this manner, the second water pipe assembly <NUM> does not pass through an inside of the base <NUM> so that a length of the second water pipe assembly <NUM> can be shortened, and the second water pipe assembly <NUM> can easily adapt to the rotation of the fan assembly <NUM>. In this embodiment, a part of the second water pipe assembly <NUM> is disposed in the fan assembly <NUM>, another part of the second water pipe assembly <NUM> is disposed outside the fan assembly <NUM>, and the part of the second water pipe assembly <NUM> outside the fan assembly <NUM> is exposed so that it is convenient for the user to connect the second water pipe assembly <NUM> to the flowing water source.

The fan assembly <NUM> further includes a fan cover <NUM> configured to surround the fan blades <NUM>, and the electric motor <NUM> is also disposed in the fan cover <NUM>. The installation piece <NUM> may be considered as a part of the fan cover <NUM> and may also be integrally formed with the fan cover <NUM>. The nozzle <NUM> is disposed on the installation piece <NUM>, which may also be understood as that the nozzle <NUM> is installed to the fan cover <NUM>. The fan cover <NUM> further includes a front fan cover 134a and a rear fan cover 134b. When the front fan cover 134a is docked with the rear fan cover 134b, the front fan cover 134a and the rear fan cover 134b surround and form a first accommodation cavity <NUM> for accommodating a fan and the electric motor <NUM>. A part of the second water pipe 162a extends into the fan cover <NUM>, that is, a part of the second water pipe 162a is disposed in the first accommodation cavity <NUM>, and the second water pipe 162a extends from an inside of the fan cover <NUM> to an outside of the fan cover <NUM>. A part of the second water pipe 162a outside the fan cover <NUM> passes through neither the support arm <NUM> nor the base <NUM> so that the part of the second water pipe 162a outside the fan cover <NUM> is exposed. The part of the second water pipe 162a outside the fan cover <NUM> is exposed, which does not limit a protective sleeve to be sleeved on an outer wall of the second water pipe <NUM>. Even if the protective sleeve is sleeved on the second water pipe <NUM>, it is considered that the second water pipe <NUM> is exposed.

A limiting piece <NUM> is disposed on an outer surface of the base <NUM> and configured to be in contact with the second water pipe 162a to limit a position of the second water pipe 162a.

A first groove extending in a circumferential direction around the electric motor axis 100a is formed at an edge of the front fan cover 134a, and a second groove 134c extending in the circumferential direction around the electric motor axis 100a is formed at an edge of the rear fan cover 134b. When the front fan cover 134a is docked with the rear fan cover 134b, the first groove is docked with the second groove 134c to form a second accommodation cavity <NUM> for accommodating part of the waterway system <NUM>.

The waterway system <NUM> further includes a fourth water pipe <NUM>, a fifth water pipe <NUM>, and a distribution element <NUM>. The distribution element <NUM> is separately connected to the first water pipe assembly <NUM> and the second water pipe assembly <NUM> and configured to distribute water delivered from the first water pipe assembly <NUM> or the second water pipe assembly <NUM> to the fourth water pipe <NUM> and the fifth water pipe <NUM> and then deliver water to the nozzles <NUM> through the fourth water pipe <NUM> and the fifth water pipe <NUM>. The distribution element <NUM> is installed to the fan assembly <NUM>. Specifically, the distribution element <NUM> is disposed in the fan cover <NUM> and disposed in the second accommodation cavity <NUM>, the second water pipe 162a extends into the second accommodation cavity <NUM> and is connected to the distribution element <NUM>, and the third water pipe 161b also extends into the second accommodation cavity <NUM> and is connected to the distribution element <NUM> so that both the second water pipe 162a and the third water pipe 161b can deliver water to the distribution element <NUM>. The distribution element <NUM> is also connected to the fourth water pipe <NUM> and the fifth water pipe <NUM>. The fourth water pipe <NUM> is disposed partially in the second accommodation cavity <NUM>, and the fifth water pipe <NUM> is disposed partially in the second accommodation cavity <NUM>. An end of the fourth water pipe <NUM> is connected to the distribution element <NUM>, and the other end of the fourth water pipe <NUM> is connected to one nozzle <NUM>. An end of the fifth water pipe <NUM> is connected to the distribution element <NUM>, and the other end of the fifth water pipe <NUM> is connected to another nozzle <NUM>. In this manner, the waterway system <NUM> can be set more reasonably and has higher efficiency.

In this embodiment, the pump <NUM> may be a diaphragm pump <NUM> or a piston pump <NUM>. Output water pressure of the pump <NUM> is greater than or equal to <NUM> psi and less than or equal to <NUM> psi. An output rotation speed of the pump <NUM> is greater than or equal to <NUM> rpm and less than or equal to <NUM> rpm. In this manner, while it is ensured that a flowrate of the water sprayed from the nozzle <NUM> is sufficiently large, the flowrate of the water can be made more stable. Further, the output water pressure of the pump <NUM> is greater than or equal to <NUM> psi and less than or equal to <NUM> psi, and the output rotation speed of the pump <NUM> is greater than or equal to <NUM> rpm, which ensures that the operation duration of the first battery pack <NUM> or the second battery pack <NUM> can satisfy requirements of the user.

As shown in <FIG>, the operation assembly <NUM> includes a first adjustment piece <NUM> and a second adjustment piece <NUM>. The first adjustment piece <NUM> is configured to adjust a volume of the water sprayed from the nozzle <NUM> so that the user can select the volume of the water according to humidity in the environment. The second adjustment piece <NUM> is configured for the user to adjust a rotation speed of the fan so that the user can select a wind speed according to the humidity in the environment. The misting fan <NUM> further includes a circuit board assembly <NUM> configured to control the pump <NUM> and the electric motor <NUM>.

The first adjustment piece <NUM> includes a first thin film 151a and a first actuation element 151b. The second adjustment piece <NUM> includes a second actuation element. The first thin film 151a is disposed on an outer surface of the support assembly 10a, the first actuation element 151b is disposed at least partially in the support assembly 10a, and the second actuation element is disposed in the support assembly 10a. The first thin film 151a is disposed on an upper surface of the base <NUM>. The circuit board assembly <NUM> includes a circuit board 153a, a circuit board box 153b, and a sealing piece 153c. Both the first actuation element 151b and the second actuation element are installed on the circuit board 153a, the circuit board 153a is disposed in the accommodation space 11a surrounded by the base <NUM>, the first actuation element 151b is disposed at least partially in the accommodation space 11a, and the second actuation element is disposed at least partially in the accommodation space 11a. The circuit board 153a is installed in the circuit board box 153b. When the circuit board 153a is disposed in the circuit board box 153b, sealant may be poured into the circuit board box 153b, which can improve the waterproof performance of the circuit board assembly <NUM>. However, both the first actuation element 151b and the second actuation element are movably installed on the circuit board 153a, so the sealant cannot completely cover the first actuation element 151b and the second actuation element. In this embodiment, the sealing piece 153c is disposed on an upper side of the whole formed by the circuit board 153a, the circuit board box 153b, the first actuation element 151b, and the second actuation element, and the sealing piece 153c may be a rubber piece. In this manner, the waterproof performance of the circuit board assembly <NUM> and the operation assembly <NUM> can be further improved.

As shown in <FIG>, a misting fan <NUM> in embodiment two is provided. Compared with the misting fan <NUM> shown in <FIG>, the misting fan <NUM> in this embodiment has the same fan assembly <NUM>, support assembly <NUM>, and battery pack <NUM>. A difference is that the misting fan <NUM> in this embodiment has another nozzle <NUM> with a structure different from the structure of the nozzle <NUM> in the misting fan <NUM> in <FIG>. In this embodiment, the structures other than the nozzle <NUM> of the misting fan <NUM> are the same as those in embodiment one. Hereinafter, only the structure of the nozzle <NUM> in this embodiment is specifically described.

In this embodiment, the nozzle <NUM> is disposed on the fan assembly <NUM> or the support assembly <NUM>. More specifically, the nozzle <NUM> is detachably installed on a fan cover <NUM>.

As shown in <FIG> and <FIG>, in this embodiment, the nozzle <NUM> includes a nozzle body <NUM> and a nozzle head <NUM>. The nozzle body <NUM> is configured to install the nozzle <NUM> to the support assembly <NUM> or the fan assembly <NUM>. The nozzle head <NUM> is installed to the nozzle body <NUM> and the nozzle head <NUM> sprays water into the environment in a form of water mist.

As shown in <FIG>, in this embodiment, the nozzle body <NUM> includes a support piece <NUM> and a first part <NUM>. The support piece <NUM> supports the first part <NUM>, the support piece <NUM> is formed with a first threaded portion 211a, and the main machine is formed with a fitting portion fitting with the first threaded portion 211a so that the support piece <NUM> may be detachably installed to the main machine through the first threaded portion 211a.

The nozzle head <NUM> includes a second part <NUM> and a connection piece <NUM>, where the connection piece <NUM> is configured to support the second part <NUM>. In this embodiment, the second part <NUM> is detachably installed to the nozzle body <NUM>. Specifically, the support piece <NUM> is formed with a second threaded portion 211b, the connection piece <NUM> is formed with a second fitting portion 222a, and the whole formed by the connection piece <NUM> and the second part <NUM> is detachably installed to the support piece <NUM> of the nozzle body <NUM> through the second fitting portion 222a.

The first part <NUM> is formed with a first surface 212a, and the second part <NUM> is formed with a second surface 221a. When the second part <NUM> is installed to the nozzle body <NUM> through the connection piece <NUM>, a water flow channel <NUM> through which water flows is formed between the second surface 221a and the first surface 212a. That is, the water flow channel <NUM> is disposed between the first surface 212a and the second surface 221a and sandwiched between the first surface 212a and the second surface 221a. Of course, it is to be understood that the water flow channel <NUM> here may be a part of a channel in the nozzle <NUM> for water to flow through. A dimension of the water flow channel <NUM> may be less than dimensions of other parts of the channel, and of course, it is not limited to this.

In this embodiment, the second part <NUM> can be detached from the nozzle body <NUM>. When the second part <NUM> is detached from the nozzle body <NUM>, the second surface 221a is at least partially exposed to be cleaned. The dimension of the water flow channel <NUM> in the nozzle <NUM> is relatively small. After a long time of operation, scale, impurities, debris, and the like are likely to clog the water flow channel <NUM>, which seriously affects the volume of water sprayed from the nozzle <NUM> and even causes the nozzle <NUM> to be unable to spray the water. In this embodiment, the second part <NUM> can be detached from the nozzle body <NUM>, and when the second part <NUM> is detached, the first surface 212a is exposed so that the user can conveniently clean the first surface 212a of the first part <NUM> and can also take out the debris trapped in the water flow channel <NUM>, thereby not affecting the use of the nozzle <NUM>. On one hand, the use cost can be significantly reduced, and the nozzle <NUM> is prevented from being clogged so that the operation of the misting fan <NUM> is not affected, thereby improving the operation efficiency of the misting fan <NUM>. In addition, the nozzle body <NUM> can be cleaned only by detaching the nozzle head <NUM>, which is convenient and quick to operate.

In this embodiment, when the nozzle head <NUM> is detached from the nozzle body <NUM>, the second surface 221a is also at least partially exposed so that the user can also clean the second surface 221a on the nozzle head <NUM>.

Specifically, a water inlet hole 211c is formed at an end of the support piece <NUM>, an accommodation cavity 211d is formed in the support piece <NUM>, the first part <NUM> is disposed in the accommodation cavity 211d, and the first part <NUM> is movably disposed in the accommodation cavity 211d. Of course, in other implementations, the first part <NUM> may also be fixedly disposed in the accommodation cavity 211d. The first surface 212a surrounds a centerline 200a, the second surface 221a also surrounds the centerline 200a, and the second surface 221a is disposed on an outer side of the first surface 212a. In a plane perpendicular to the centerline 200a, a cross-section of the water flow channel <NUM> between the first surface 212a and the second surface 221a is annular.

The second part <NUM> is formed with a water outlet hole 221b configured to spray the water into an external environment. The water outlet hole 221b is centered on the centerline 200a and disposed at an end of the second surface 221a. The second part <NUM> and the connection piece <NUM> are detachably connected so that the second part <NUM> can be replaced separately. A diameter of the water outlet hole 221b is greater than or equal to <NUM> and less than or equal to <NUM>.

The nozzle body <NUM> further includes a spring <NUM> and an elastic piece <NUM>. The spring <NUM> is supported between the elastic piece <NUM> and the first part <NUM>. A hole 211e is formed on a bottom surface of the accommodation cavity 211d. The hole 211e communicates with the water inlet hole 211c. The elastic piece <NUM> is supported at the hole 211e. When the misting fan <NUM> stops operating, the elastic piece <NUM> can effectively prevent water in a waterway system from flowing out through the nozzle <NUM>, thereby preventing the nozzle <NUM> from dripping water. The spring <NUM> presses the first part <NUM> toward the second part <NUM> so that it can be ensured that the dimension of the water flow channel <NUM> is small enough, which is conducive to the formation of water mist.

The first surface 212a is at least partially an inclined surface, and the second surface 221a is also at least partially an inclined surface. A section line of the first surface 212a in a plane passing through the centerline 200a obliquely intersects with the centerline 200a, and a section line of the second surface 221a in the plane also obliquely intersects with the centerline 200a. Alternatively, it is to be understood that the first surface 212a is a part of one conical surface, and the second surface 221a is a part of another conical surface.

A first sealing ring <NUM> is connected to the nozzle body <NUM> and prevents water from flowing out of an outer wall of the nozzle <NUM> when the nozzle <NUM> is installed to the main machine.

In this embodiment, as shown in <FIG>, a notch 212b is formed at an end of the first part <NUM>, and the notch 212b allows water to flow through to the water outlet hole 221b after the water flows through the water flow channel <NUM>. In this manner, even if the first part <NUM> abuts against the second part <NUM> through the spring <NUM>, the water can sequentially flow through the water flow channel <NUM>, the notch 212b, and the water outlet hole 221b.

A nozzle <NUM> in embodiment three, as shown in <FIG>, is applicable to the misting fan <NUM> in <FIG>. The nozzle <NUM> has basically the same structure as the nozzle <NUM> in embodiment two, except that a nozzle head <NUM> and a nozzle body <NUM> are movably connected. Hereinafter, only the structural differences between the nozzle <NUM> in this embodiment and the nozzle <NUM> in embodiment two are described.

In this embodiment, the nozzle head <NUM> and the nozzle body <NUM> are rotatably connected. It is to be understood that in other embodiments, the nozzle head and the nozzle body may be slidably connected. In this manner, a second part <NUM> is movably installed to the nozzle body <NUM>. When the second part <NUM> moves to a first position relative to a first part <NUM> in the nozzle body <NUM>, a water flow channel <NUM> is formed between a second surface 321a and a first surface 312a. When the second part <NUM> moves to a second position relative to the first part <NUM>, the first surface 312a is at least partially exposed to be cleaned. The movement of the second part <NUM> relative to the first part <NUM> may be understood as that the second part <NUM> can move relative to the first part <NUM> and may also be understood as that the second part <NUM> can rotate relative to the first part <NUM>. In this manner, when the nozzle <NUM> is clogged, the user only needs to rotate the nozzle head <NUM> or move the nozzle head <NUM> to clean the water flow channel <NUM>, which further improves the convenience of operation.

A nozzle <NUM> in embodiment four, as shown in <FIG>, is applicable to the misting fan <NUM> in <FIG>. The nozzle <NUM> includes a nozzle body <NUM> and a nozzle head <NUM>. In this embodiment, the nozzle body <NUM> includes a first part <NUM>, a second part <NUM>, and a spring <NUM>. The first part <NUM> is formed with a first surface 411a, and the second part <NUM> is formed with a second surface 412a. A water flow channel <NUM> through which water flows may be formed between the first surface 411a and the second surface 412a. The nozzle head <NUM> is formed with a pressing portion 42a which can drive the second part <NUM> to move relative to the first part <NUM>. The nozzle head <NUM> can move relative to the nozzle body <NUM> to an open position and a closed position. When the nozzle head <NUM> is at the closed position, the pressing portion 42a presses the second part <NUM> to move to a first position relative to the first part <NUM>. At this time, the water flow channel <NUM> is formed between the first surface 411a and the second surface 412a. When the nozzle head <NUM> is at the open position, the pressing portion 42a is detached from the second part <NUM>, and the second part <NUM> can move to a second position under the action of the spring <NUM>. At this time, the second surface 412a is at least partially exposed to be cleaned. It is to be understood that in other implementations, the first surface 411a may also be at least partially exposed to be cleaned.

Claim 1:
A misting fan (<NUM>, <NUM>), comprising:
a nozzle (<NUM>, <NUM>, <NUM>, <NUM>) configured to spray water;
a fan assembly (<NUM>, <NUM>) comprising fan blades (<NUM>) and an electric motor (<NUM>) configured to drive the fan blades to rotate;
a support assembly (10a, <NUM>) configured to support the fan assembly; wherein the support assembly is formed with a coupling portion (<NUM>) for detachably coupling a battery pack (<NUM>, <NUM>, <NUM>, <NUM>), the nozzle is disposed on the fan assembly or the support assembly, and
the battery pack (<NUM>, <NUM>, <NUM>, <NUM>) detachably installed to the coupling portion;
a waterway system (<NUM>) comprising a water pipe (<NUM>) connected to the nozzle;
a pump (<NUM>) connected to the water pipe;
wherein the nozzle comprises:
a nozzle body (<NUM>, <NUM>, <NUM>) comprising a first part (<NUM>, <NUM>, <NUM>) formed with a first surface (212a, 312a, 411a); and
a second part (<NUM>, <NUM>, <NUM>) detachably installed to the nozzle body and formed with a second surface (221a, 321a, 412a);
wherein a water flow channel (<NUM>, <NUM>, <NUM>) is formed between the second surface and the first surface when the second part is installed to the nozzle body, and the first surface is at least partially exposed to be cleaned when the second part is detached from the nozzle body;
wherein the second part is formed with a water outlet hole (221b) through which the water is sprayed to an outside,
characterized in that
a diameter of the water outlet hole is greater than or equal to <NUM> and less than or equal to <NUM>; wherein output water pressure of the pump is greater than or equal to <NUM> MPa (<NUM> psi) and less than or equal to <NUM> MPa (<NUM> psi);
wherein the nozzle body further comprises a support piece (<NUM>) configured to support the first part, and the support piece is formed with a water inlet hole (211c) and an accommodation cavity (211d) in which the first part is disposed;
wherein the first part is movably disposed in the accommodation cavity;
wherein the nozzle body further comprises an elastic piece (<NUM>) disposed in the accommodation cavity and a spring (<NUM>, <NUM>) supported between the elastic piece and the first part, the accommodation cavity is formed with a hole (211e) communicating with the water inlet hole on a bottom surface of the accommodation cavity, and the elastic piece is supported at the hole.