Cooling fan

Abstract

The utility model relates to the field of life electric appliances, and provides a cooling fan. The cooling fan comprises a shell, and a wet curtain assembly and an air supply piece are installed in the shell. And the first filtering piece is arranged between the wet curtain assembly and the air supply piece, and the first filtering piece is used for preventing fluid on the wet curtain assembly from being attached to the air supply piece. According to the cooling fan, fluid on the wet curtain assembly can be effectively prevented from being attached to the air supply part, the situation that the fluid on the wet curtain assembly is adsorbed to the air supply part due to negative pressure generated by the air supply part is avoided, and in the normal rotation process of the air supply part, splashing of the fluid is avoided. Due to the fact that the fluid is prevented from making direct contact with the air supply piece, faults caused by motor short circuit or bearing rusting are reduced, the risk that the air supply piece is damaged due to moisture is further reduced, the cooling fan is more stable and reliable in the operation process, and the overall service life of the cooling fan is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances and provides a cooling fan. Background Art

[0002] In related technologies, cooling fans can cause water splashing during humidification and cooling operations. This is primarily due to excessive water flow or a damaged wet curtain, which causes water to splash outwards from the fan blades, compromising user safety and potentially damaging the floor and objects. This problem is particularly prominent on commercial cooling fans with high airflow rates, causing splashing and impacting the user experience. Utility Model Content

[0003] The embodiment of the utility model provides a cooling fan, which is used to solve the defect of the cooling fan in the related art that liquid droplets splash.

[0004] The present invention provides a cooling fan, comprising:

[0005] A housing in which a wet curtain assembly and an air supply component are installed;

[0006] The first filter element is arranged between the wet curtain assembly and the air supply element, and is used to prevent the fluid on the wet curtain assembly from adhering to the air supply element.

[0007] According to one embodiment of the present invention, the wet curtain assembly includes:

[0008] a first mounting frame, mounted on the housing;

[0009] a second installation frame detachably connected to the first installation frame, wherein when the second installation frame is installed on the first installation frame, an installation space is formed between the second installation frame and the first installation frame;

[0010] A wet curtain body, wherein the wet curtain body and the first filter element are installed in the installation space, and the first filter element is located on a side of the wet curtain body facing the air supply element.

[0011] According to an embodiment of the present invention, a second filter element is further included, and the second filter element is installed between the second installation frame and the wet curtain body.

[0012] According to an embodiment of the present invention, a first filter hole is formed on the first filter element, and the aperture of the first filter hole ranges from 0.01 mm to 5 mm.

[0013] According to one embodiment of the present invention, the utility model further includes an upper water tank and a lower water tank in fluid communication with the upper water tank.

[0014] According to one embodiment of the present invention, the lower water tank comprises:

[0015] A box body is arranged below the wet curtain assembly;

[0016] The third filter element is installed in the box.

[0017] According to an embodiment of the present invention, a drawer is detachably provided on the box body, and the third filter is provided on the drawer.

[0018] According to one embodiment of the present invention, a cleaning port is provided on the box body.

[0019] According to one embodiment of the present invention, a water receiving tray is detachably provided at the bottom of the box.

[0020] According to an embodiment of the present invention, a third filter hole is formed on the third filter element, and the aperture of the third filter hole ranges from 0.01 mm to 5 mm.

[0021] According to the cooling fan provided by the embodiment of the present invention, by providing a first filter element, it is possible to effectively prevent the fluid on the wet curtain assembly from adhering to the air supply element, thereby preventing the fluid on the wet curtain assembly from being adsorbed on the air supply element due to the negative pressure generated by the air supply element, and preventing the fluid from splashing during the normal rotation of the air supply element. Since direct contact of the fluid with the air supply element is avoided, failures caused by motor short circuits or bearing rust are reduced, thereby reducing the risk of damage to the air supply element due to moisture, making the cooling fan more stable and reliable during operation, thereby significantly improving the overall service life of the cooling fan. The maintenance and replacement costs caused by equipment failures are reduced, and the burden on users is reduced. At the same time, the stable operating performance and continuous cooling effect also improve user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic three-dimensional diagram of the cooling fan provided by the utility model at one angle.

[0024] Figure 2 It is a schematic three-dimensional diagram of the cooling fan provided by the utility model from another angle.

[0025] Figure 3 It is a schematic exploded diagram of the wet curtain assembly provided by the utility model.

[0026] Figure 4 It is a schematic three-dimensional diagram of the lower water tank provided by the utility model.

[0027] Figure 5 It is a schematic three-dimensional diagram of the third filter element provided by the utility model.

[0028] Reference numerals:

[0029] 100. Housing; 102. Wet curtain assembly; 104. Air supply element; 106. First filter element; 108. First mounting frame; 110. Second mounting frame; 112. Wet curtain body; 114. Second filter element; 116. Upper water tank; 118. Lower water tank; 120. Box body; 122. Third filter element; 124. Pull-out element; 126. Cleaning port. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] like Figures 1 to 5 As shown, the embodiment of the present invention provides a cooling fan, comprising:

[0032] The housing 100 has a wet curtain assembly 102 and an air supply component 104 installed therein;

[0033] The first filter element 106 is disposed between the wet curtain assembly 102 and the air supply element 104 . The first filter element 106 is used to prevent the fluid on the wet curtain assembly 102 from adhering to the air supply element 104 .

[0034] The cooling fan provided by the present invention, by providing a first filter element 106, effectively prevents fluid from the wet curtain assembly 102 from adhering to the air supply element 104. This prevents the fluid from being adsorbed onto the air supply element 104 due to the negative pressure generated by the air supply element 104, and prevents fluid splashing during normal rotation of the air supply element 104. By preventing direct fluid contact with the air supply element 104, failures caused by motor short circuits or bearing rust are reduced, thereby reducing the risk of damage to the air supply element 104 due to moisture. This makes the cooling fan more stable and reliable during operation, significantly improving its overall service life. This reduces the maintenance and replacement costs associated with equipment failures, lowering the user burden. Furthermore, the stable operating performance and consistent cooling effect also enhance user satisfaction. Furthermore, by providing the first filter element 106, the distance between the air supply element 104 and the wet curtain assembly 102 can be appropriately reduced, thereby achieving a miniaturized design for the cooling fan.

[0035] Please continue to see Figures 1 to 5 , an embodiment of the utility model provides a cooling fan, which aims to avoid splashing of liquid droplets during use of the cooling fan, optimize its working efficiency and extend its service life.

[0036] Specifically, the cooling fan is mainly composed of a housing 100 , a wet curtain assembly 102 , a first filter element 106 and an air supply element 104 .

[0037] The housing 100 serves as the main structure of the cooling fan. It not only provides space for internal components but also protects them from the outside environment. The housing 100 is well sealed and well ventilated to ensure proper operation and efficient heat dissipation of the cooling fan.

[0038] The wet curtain assembly 102 has good water absorption and air permeability. When the fluid flows through the wet curtain assembly 102, the air supply component 104 will blow the air through the wet curtain assembly 102. When the unsaturated air flows through the porous and moist surface of the wet curtain assembly 102, a large amount of water evaporates, and the sensible heat reflected by the temperature in the air is converted into latent heat of evaporation. This part of the air is then blown out by the air supply component 104 to achieve the effect of cooling and humidifying.

[0039] The air supply member 104 can be a fan or a blower. As mentioned above, the air supply member 104 is used to blow the air treated by the wet curtain assembly 102 to the user side. The speed and power of the air supply member 104 can be set by the user to obtain different air supply experiences.

[0040] In the embodiment of the present invention, to address the issue of fluid (such as water droplets or mist) on the wet curtain assembly 102 adhering to the air supply member 104, a first filter element 106 is specifically provided between the wet curtain assembly 102 and the air supply member 104. The primary function of the first filter element 106 is to prevent the fluid from adhering to the air supply member 104, thereby preventing the air supply member 104 from directly blowing the fluid out. Furthermore, the first filter element 106 protects the air supply member 104 from moisture, thereby preventing potential problems such as motor short circuits and bearing rust, thereby increasing the service life and operational stability of the air supply member 104.

[0041] Therefore, the cooling fan provided by the embodiment of the present invention can not only avoid splashing of fluids such as droplets and water mist, but also ensure the normal use of the air supply member 104.

[0042] According to one embodiment of the present invention, the wet curtain assembly 102 includes:

[0043] A first mounting frame 108 is mounted on the housing 100;

[0044] The second installation frame 110 is detachably connected to the first installation frame 108. When the second installation frame 110 is installed on the first installation frame 108, an installation space is formed between the second installation frame 110 and the first installation frame 108.

[0045] The wet curtain body 112 , the wet curtain body 112 and the first filter element 106 are installed in the installation space, and the first filter element 106 is located on a side of the wet curtain body 112 facing the air supply element 104 .

[0046] In one embodiment of the present invention, the first mounting frame 108 serves as the basic support structure of the wet curtain assembly 102. The first mounting frame 108 is used to provide a stable mounting structure for the wet curtain body 112, ensuring the stability of the entire wet curtain assembly 102. The first mounting shell can be mounted to the housing 100 by various means such as bolts, clamping, etc.

[0047] The second mounting frame 110 is configured to be detachably connected to the first mounting frame 108. This configuration makes the installation, removal, and maintenance of the wet curtain assembly 102 more convenient. When the second mounting frame 110 is tightly connected to the first mounting frame 108, a closed or semi-enclosed installation space is formed between the two for installing and fixing the wet curtain body 112 and other related components.

[0048] The wet curtain body 112 is usually made of porous, water-absorbent materials such as paper, fiber, or special synthetic materials. The wet curtain body 112 is installed in the above-mentioned installation space. When air passes through the wet curtain, the evaporation of water will take away a large amount of heat, thereby achieving a cooling effect.

[0049] The first filter element 106 is also installed in the above-mentioned installation space, and the first filter element 106 is located between the wet curtain body 112 and the air supply element 104. Through such an arrangement, when the air supply element 104 is running, negative pressure is generated near the air supply element 104. Due to the blocking effect of the first filter element 106, the droplets on the wet curtain body 112 are prevented from being adsorbed on the air supply element 104, thereby preventing the air supply element 104 from blowing out the droplets when it is running, and avoiding the splashing of droplets.

[0050] The removable mounting frame 108 and the second mounting frame 110 facilitate installation, removal, and maintenance of the cooling pad assembly 102. Users can easily replace the cooling pad body 112 or clean the first filter element 106 as needed, reducing maintenance costs and time. The secure connection between the first and second mounting frames 108, 110 ensures the overall stability of the cooling pad assembly 102, ensuring it remains in normal operation even in strong winds or vibrations, thereby enhancing system reliability and service life.

[0051] The provision of the first filter element 106 effectively prevents droplets from accumulating on the air supply element 104, thus preventing splashing. Furthermore, the provision of the first filter element 106 also filters impurities such as dust and particulate matter from the air, making the air passing through the wet curtain assembly 102 fresher and cleaner. The wet curtain body 112 achieves a cooling effect by removing heat through evaporation. The placement of the air supply element 104 in front of the wet curtain body 112 accelerates air flow and improves cooling efficiency. Furthermore, the presence of the first filter element 106 helps keep the wet curtain body 112 clean and moist, further enhancing the cooling effect.

[0052] According to an embodiment of the present invention, a second filter element 114 is further included. The second filter element 114 is installed between the second installation frame 110 and the wet curtain body 112 .

[0053] like Figure 3 As shown, in one embodiment of the present invention, in addition to the first mounting frame 108, the second mounting frame 110, the wet curtain body 112 and the first filter element 106 described above, a second filter element 114 is added. The setting of the second filter element 114 makes the function of the wet curtain assembly 102 more complete.

[0054] The second filter element 114 is installed between the second mounting frame 110 and the cooling pad body 112, forming an additional filter layer. The primary function of the second filter element 114 is to provide preliminary filtration for the air entering the cooling pad body 112, further reducing impurities such as dust and particulate matter. The material and design of the second filter element 114 can be selected as needed to achieve optimal filtering performance.

[0055] Therefore, the assembly sequence of the entire wet curtain assembly 102 is as follows: the first mounting frame 108 serves as the base frame, and the second mounting frame 110 is detachably connected to the first mounting frame 108. The two together enclose an installation space. Within the installation space, the second filter element 114 is first installed, followed by the wet curtain body 112. Finally, the first filter element 106 is installed on the side of the wet curtain body 112 facing the air supply member 104. It should be noted that when the first mounting frame 108 is facing the air supply member 104, the wet curtain body 112 can be installed on the first mounting frame 108. Similarly, when the second mounting frame 110 is facing the air supply member 104, the wet curtain body 112 can be installed on the second mounting frame 110.

[0056] The second filter element 114 reduces the amount of impurities that enter the wet curtain body 112, thereby reducing the level of contamination within the wet curtain body 112. This helps maintain the wet curtain body 112 clean and moist, reducing clogging and damage caused by impurity accumulation, and thereby extending the service life of the wet curtain assembly 102. The second filter element 114's initial filtration of the air ensures that the air entering the wet curtain body 112 is purer, helping the wet curtain body 112 to better exert its cooling effect. Pure air more easily passes through the porous structure of the wet curtain body 112, allowing water to evaporate more quickly and evenly. Furthermore, the addition of the second filter element 114 further improves the overall structure of the wet curtain assembly 102, helping to reduce system failures and downtime caused by impurity accumulation, thereby improving system reliability and stability. It also facilitates subsequent maintenance and cleaning.

[0057] In other words, the newly added second filter element 114 and the original first filter element 106 form a dual filtration system. This design can more effectively remove impurities such as dust and particulate matter from the air, improving the quality of air passing through the wet curtain assembly 102. For places that require a high-purity air environment, such as hospitals and laboratories, the installation of the second filter element 114 can meet the usage requirements of such places.

[0058] According to an embodiment of the present invention, a first filter hole is formed on the first filter element 106 , and the aperture of the first filter hole ranges from 0.01 mm to 5 mm.

[0059] In an embodiment of the present invention, the first filter element 106 is further refined in design. Specifically, a first filter hole is provided on the first filter element 106 , and the aperture value range of the first filter hole is limited to 0.01 mm to 5 mm.

[0060] The main function of the first filter hole is to prevent the liquid on the wet curtain body 112 from being adsorbed onto the air supply part 104. In addition, the first filter hole can also filter out impurities such as dust and particulate matter in the air to a certain extent, ensuring that the air entering the wet curtain body 112 is cleaner.

[0061] It is understandable that filter holes of different pore sizes have different resistances to air flow, and the air volume passing through the wet curtain assembly 102 can be controlled to a certain extent by adjusting the pore size.

[0062] When the aperture of the first filter hole is 0.01 mm, this aperture is close to the micropore level, which can effectively prevent extremely fine droplets or water mist from being adsorbed on the air supply element 104. The first filter element 106 with this aperture can be used in situations where extremely high cleanliness is required but the air volume requirement is not high.

[0063] When the aperture of the first filter hole is 5 mm, this aperture is relatively large, which can allow more air to pass through and reduce the resistance to air flow, but the filtering effect may be slightly inferior to that of a small aperture. Therefore, the first filter element 106 with this aperture is suitable for occasions with high requirements for air volume but relatively low requirements for cleanliness.

[0064] As can be seen from the above description, users can precisely control the aperture size of the first filter hole according to their specific usage environment and needs, effectively intercepting droplets and mist, filtering out impurities in the air, and improving the air quality passing through the wet curtain assembly 102. Furthermore, the various aperture ranges provide users with more options, allowing the wet curtain assembly 102 to adapt to different usage environments and needs. This enhances the system's flexibility and applicability. Proper aperture selection ensures effective filtration while minimizing resistance to air flow. This helps improve the cooling efficiency of the wet curtain assembly 102 and the overall system performance.

[0065] According to an embodiment of the present invention, an upper water tank 116 and a lower water tank 118 in fluid communication with the upper water tank 116 are further included.

[0066] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the cooling fan further includes an upper water tank 116 and a lower water tank 118, and the upper water tank 116 and the lower water tank 118 are fluidically connected through pipes or other fluid connection devices to form a complete circulation or water storage system.

[0067] The upper water tank 116 is usually located at a higher position for storing clean water or treated water to supply water to the wet curtain body 112. The lower water tank 118 is located at a lower position for collecting water flowing down from the wet curtain body 112. In addition, the lower water tank 118 can also serve as a backup water storage device.

[0068] The fluid communication between the upper water tank 116 and the lower water tank 118 can be achieved through natural flow under the action of gravity, or can be assisted by power equipment such as a water pump. The specific method can be flexibly selected according to actual design requirements.

[0069] In some embodiments, auxiliary equipment such as a water level controller and a filtering device may be provided in the upper water tank 116 and the lower water tank 118 to ensure clean water quality and stable operation of the system.

[0070] In an embodiment of the present utility model, in order to ensure that the water in the upper water tank 116 can be evenly distributed on the wet curtain body 112, a water distributor can also be set at the water outlet position of the upper water tank 116. The water distributor can distribute the water in the upper water tank 116 more evenly on the wet curtain body 112. When the air supply part 104 supplies air, it can ensure that the blown air is cooler.

[0071] In order to collect the water falling from the wet curtain body 112, a water collector can be set below the wet curtain body 112. When the water on the wet curtain body 112 falls into the water collector, the falling water can be collected by the water collector.

[0072] In addition, in order to prevent water on the wet curtain body 112 from falling into the lower water tank 118 and causing splashing, a corresponding diversion structure can be provided in the lower water tank 118. When water drops onto the diversion structure, the gravitational potential energy of the falling water can be reduced, so that the water dripping from the wet curtain body 112 can fall more smoothly into the lower water tank 118. For example, the diversion structure can be a diversion groove, a diversion protrusion, etc.

[0073] The provision of upper and lower water tanks 116, 118 ensures that the wet curtain assembly 102 receives clean water when needed, thereby improving water supply efficiency. Furthermore, the lower water tank 118 helps collect and utilize used water, reducing waste. The integrated design of the upper and lower water tanks 116, 118 makes the entire water supply system more compact and stable. The fluid connection between the upper and lower water tanks 116, 118 also facilitates automatic adjustment and stable operation of the system.

[0074] In some embodiments, auxiliary equipment such as a filter may be included between the upper water tank 116 and the lower water tank 118 to ensure water cleanliness. This helps reduce damage to the wet curtain body 112 and other water-using equipment caused by impurities, thereby extending its service life. By adjusting parameters such as the capacity, position, and fluid connection method of the upper and lower water tanks 116, 118, this embodiment of the utility model can be adapted to different usage environments and needs. For example, in applications requiring a large water supply, the capacity of the upper water tank 116 can be increased or the power of the water pump can be improved; in applications requiring water conservation, the water recycling process can be optimized.

[0075] According to one embodiment of the present invention, the lower water tank 118 includes:

[0076] The box 120 is arranged below the wet curtain assembly 102;

[0077] The third filter element 122 is installed in the box body 120 .

[0078] like Figure 4 and Figure 5As shown, in one embodiment of the present invention, the lower water tank 118 includes a box body 120 and a third filter element 122 installed in the box body 120. This design is intended to improve the water treatment capacity of the wet curtain assembly 102 and the overall performance of the system.

[0079] The housing 120, serving as the main body of the lower water tank 118, is located below the wet curtain assembly 102. This arrangement facilitates the collection of water flowing from the wet curtain body 112 or other water outlets while providing ample space for installing and maintaining the third filter element 122. The housing 120 is constructed of corrosion-resistant and airtight materials, ensuring long-term stability and safety.

[0080] The third filter element 122 is installed within the housing 120 and is used to filter the collected water. The primary function of the third filter element 122 is to remove suspended matter, impurities, and microorganisms from the water, thereby improving the water's cleanliness and facilitating subsequent recycling or disposal. In this embodiment of the present invention, the third filter element 122 may include activated carbon, quartz sand, ceramic, or the like.

[0081] In order to achieve flexible replacement and cleaning of the third filter element 122, the third filter element 122 is configured to be a detachable structure between the box body 120. At the same time, corresponding seals and fixing devices are also provided between the third filter element 122 and the box body 120 to ensure firm installation and good sealing.

[0082] By installing a third filter element 122 in the lower water tank 118, the water flowing out of the wet curtain body 112 can be further filtered to effectively remove harmful substances such as impurities and microorganisms in the water, thereby improving the cleanliness of the water. Clean water quality helps to maintain the moist state of the wet curtain assembly 102 and a good evaporation effect. At the same time, the filtered water can also be reused in the water supply system of the wet curtain assembly 102, thereby enhancing the system's circulation capacity and water-saving effect. Filtering out impurities and microorganisms in the water can reduce the risk of damage and blockage to the wet curtain body 112, pipes and other water-using equipment, thereby extending the service life of the entire system. The sealing and corrosion-resistant design of the box 120 can ensure that the lower water tank 118 will not leak or corrode during long-term use, thereby improving the stability and safety of the system.

[0083] According to an embodiment of the present invention, a drawer 124 is detachably provided on the box body 120 , and the third filter element 122 is provided on the drawer 124 .

[0084] like Figure 4 As shown, in one embodiment of the present invention, a drawer 124 is detachably provided on the box body 120 of the lower water tank 118 , and the third filter element 122 is provided on the drawer 124 .

[0085] The drawer 124 is designed to be easily inserted into and removed from the housing 120. For example, the drawer 124 may be connected by a slide rail, a slot, or other similar mechanical connection device. The material of the drawer 124 has a certain strength and durability to withstand the weight of the third filter element 122 and various forces during use.

[0086] The third filter element 122 is fixed on the pull-out member 124, and can be directly installed or connected through other fixing devices. This combination makes it possible to easily remove and replace the filter element by simply pulling the pull-out member 124 out of the box body 120 when replacing the filter element, without having to disassemble or move the entire lower water tank 118.

[0087] In order to ensure the filtering effect, the connection between the third filter element 122 and the drawer element 124 should be tight and well sealed to prevent water from bypassing the filter element and flowing out directly during the filtering process.

[0088] The removable pull-out member 124 design makes replacement or maintenance of the third filter element 122 much more convenient and quicker. This design makes replacement of the third filter element 122 extremely simple and quick, eliminating the need to disassemble or move the entire lower water tank 118, significantly improving maintenance efficiency. Regular replacement and maintenance of the third filter element 122 ensures that the water quality in the lower water tank 118 remains excellent, preventing damage and clogging from impurities and microorganisms, thereby improving the reliability and stability of the cooling fan and extending its service life.

[0089] According to one embodiment of the present invention, a cleaning port 126 is provided on the box body 120 .

[0090] like Figure 4 As shown, in one embodiment of the present invention, a cleaning port 126 is provided on the tank body 120. This design innovation is intended to improve the cleaning convenience inside the lower water tank 118 and ensure the long-term stable operation of the system.

[0091] The cleaning port 126 is provided on the box body 120 and corresponds to the pull-out piece 124 . The size and shape of the cleaning port 126 can be determined according to actual needs, ensuring sufficient space for cleaning tools to enter for cleaning operations, while avoiding being too large to cause external impurities to enter the box body 120 through the cleaning port 126 .

[0092] The primary function of the cleaning port 126 is to facilitate direct cleaning of the interior of the lower water tank 118 without disassembling the entire lower water tank 118 or the drawer 124. Cleaning operations through the cleaning port 126 can significantly reduce maintenance time and costs. Regularly cleaning the interior of the lower water tank 118 through the cleaning port 126 effectively removes accumulated impurities and dirt, preventing damage to the third filter element 122 and the housing 120. This helps extend the service life of the filter element and lower water tank 118, while reducing replacement frequency and costs.

[0093] According to one embodiment of the present invention, a water receiving tray is detachably provided at the bottom of the box body 120 .

[0094] In this embodiment of the present invention, a water tray is provided at the bottom of the housing 120, making it easy for the user to remove or install it from the bottom of the housing 120. The water tray is used to collect water that overflows from the lower water tank 118. In this embodiment of the present invention, since the water tray is detachable, once a certain amount of liquid accumulates in the tray, the user can easily remove it, pour out the accumulated water, and clean it. This prevents long-term moisture and possible mold inside or at the bottom of the housing 120, thereby improving the cleanliness and service life of the cooling fan.

[0095] In addition, when a slight leak occurs in the box body 120, the water receiving tray can quickly collect and contain the liquid, effectively preventing the liquid from overflowing onto the ground or the surrounding environment, thereby protecting the user's usage environment and the safety of the device itself.

[0096] In the embodiment of the present invention, in order to pump the water in the lower box 120 into the upper box 120, a water supply component can be further provided in the lower box 120, and the water supply component is in fluid communication with the upper water tank 116 through a pipeline.

[0097] In one embodiment of the present invention, a water supply component is installed within the housing 120. The cooperation of the water supply component and the piping system enables rapid and efficient water supply between the lower water tank 118 and the upper water tank 116, helping to ensure that the upper water tank 116 always maintains an appropriate water level range to meet the normal operation requirements of the cooling fan. The water supply component and piping system can be configured as a modular structure for easy maintenance and replacement. When cleaning or replacing components, simply close the relevant valves and remove the required components without disassembling the entire system.

[0098] According to an embodiment of the present invention, a third filter hole is formed on the third filter element 122 , and the aperture of the third filter hole ranges from 0.01 mm to 5 mm.

[0099] In one embodiment of the present invention, the aperture of the third filter hole is limited to a range between 0.01 mm and 5 mm.

[0100] Specifically, by setting the pore size of the third filter hole within this range, impurity particles in droplets dripping from the wet curtain body 112 can be effectively intercepted and removed. Smaller pore sizes (e.g., 0.01 mm) can effectively intercept tiny particles and are suitable for applications with extremely high cleanliness requirements; larger pore sizes (e.g., close to 5 mm) can reduce resistance to fluid passage while maintaining a certain filtering effect, improving overall flow efficiency and are suitable for applications with high flow speed requirements.

[0101] Furthermore, the third filter element 122, together with the first filter element 106 and the second filter element 114, forms a multi-stage filtration system, further enhancing the filtration effect. By precisely controlling the pore size of the third filter holes, the third filter element 122 of this embodiment can efficiently intercept and remove foreign particles from the fluid, significantly improving the cleanliness of the fluid.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cooling fan, characterized in that: include: A housing (100), wherein a wet curtain assembly (102) and an air supply component (104) are installed in the housing (100); A first filter element (106) is provided between the wet curtain assembly (102) and the air supply element (104), and the first filter element (106) is used to prevent the fluid on the wet curtain assembly (102) from adhering to the air supply element (104).

2. The cooling fan according to claim 1, characterized in that The wet curtain assembly (102) includes: A first mounting frame (108) mounted on the housing (100); a second installation frame (110) detachably connected to the first installation frame (108); when the second installation frame (110) is installed on the first installation frame (108), an installation space is formed between the second installation frame (110) and the first installation frame (108); A wet curtain body (112), the wet curtain body (112) and the first filter element (106) are installed in the installation space, and the first filter element (106) is located on a side of the wet curtain body (112) facing the air supply element (104).

3. The cooling fan according to claim 2, characterized in that It also includes a second filter element (114), which is installed between the second installation frame (110) and the wet curtain body (112).

4. The cooling fan according to any one of claims 1 to 3, characterized in that The first filter element (106) is provided with a first filter hole, and the aperture of the first filter hole ranges from 0.01 mm to 5 mm.

5. The cooling fan according to any one of claims 1 to 3, characterized in that: The utility model also includes an upper water tank (116) and a lower water tank (118) in fluid communication with the upper water tank (116).

6. The cooling fan according to claim 5, characterized in that The lower water tank (118) comprises: A box (120) is arranged below the wet curtain assembly (102); The third filter element (122) is installed on the box (120).

7. The cooling fan according to claim 6, characterized in that A drawer (124) is detachably provided on the box body (120), and the third filter element (122) is provided on the drawer (124).

8. The cooling fan according to claim 6, characterized in that The box body (120) is provided with a cleaning port (126).

9. The cooling fan according to claim 6, characterized in that The bottom of the box body (120) is detachably provided with a water receiving tray.

10. The cooling fan according to any one of claims 6 to 9, characterized in that The third filter element (122) is provided with a third filter hole, and the aperture of the third filter hole ranges from 0.01 mm to 5 mm.

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