Patent Publication Number: US-2022235953-A1

Title: Cooling fan

Description:
TECHNICAL FIELD 
     The present disclosure relates to the technical field of household appliances, in particular to a cooling fan. 
     BACKGROUND 
     A cooling fan is also referred to as an air conditioner fan, a water-cooled air conditioner, a cold air blower, etc. It is a common household appliance at present and integrates multiple functions of air supplying, refrigeration, humidification, and the like. 
     A spray cooling fan is one of the most common cooling fans at present. Especially, the spray cooling fan generally adopts one atomizer for single-point spraying, or adopts multiple atomizers that work independently for multi-point spraying. In the single-point spraying method, non-uniform spraying is easily caused, resulting in an unbalanced cooling of an air flow at an air outlet. The use of multiple atomizers will increase the manufacturing and use cost. 
     SUMMARY 
     In view of this, the present disclosure discloses a cooling fan, which can achieve multi-point spraying with a single atomizer, so that balanced cooling of an air flow at the air outlet is guaranteed while the manufacturing and use cost is reduced. 
     The present disclosure discloses a cooling fan, including: 
     a housing, wherein an air blowing system, and an air inlet and an air outlet corresponding to the air blowing system are arranged in the housing; and 
     a water tank arranged in the housing, wherein an atomizer is configured in the water tank, and the air blowing system is communicated with the water tank; 
     a plurality of mist vents are formed in the housing; the plurality of mist vents are all communicated with the water tank; and the plurality of mist vents are located at the air inlet and/or the air outlet. 
     Further, the air blowing, system includes a main fan and an atomization fan; the main fan corresponds to the air inlet and the air outlet; and the atomization fan corresponds to the water tank to blow air to the water tank. 
     Further, the air blowing system includes a main fan; the main fan corresponds to the air inlet and the air outlet; and the water tank is communicated with an air blowing end of the main fan through an air duct. 
     Further, the mist vents are located at the air outlet. 
     Further, a filter member is provided at the air inlet; and the filter member is arranged on the outer side of the air inlet through a grid plate. 
     Further, one or more discharged mist separation strips are arranged at the air outlet; and the mist vents are formed in the discharged mist separation strips. 
     Further, the plurality of discharged mist separation strips are vertically disposed, and are uniformly distributed at the air outlet along a horizontal direction. 
     Further, the discharged mist separation strips are annularly disposed, and the plurality of discharged mist separation strips are in divergent distribution towards the outside. 
     Further, an air guide member is arranged between the discharged mist separation strips and the air blowing system, and the air duct is arranged on the air guide member. 
     Compared with the existing art, the technical solution of the present disclosure has the beneficial effects. 
     The atomizer acts on water in the water tank to generate water mist; the generated water mist is discharged through the plurality of mist vents under the action of the air blowing system and is then blown out from the air outlet under the action of the air blowing system. so that multi-point mist spraying is achieved with a single atomizer; and balanced cooling of an air flow at the air outlet is guaranteed while the manufacturing and use cost is reduced. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of an appearance structure of a cooling fan; 
         FIG. 2  is an exploded diagram of a cooling fan; 
         FIG. 3  is a schematic structural diagram of a front shell at one visual angle; 
         FIG. 4  is a schematic structural diagram of the front shell at another visual angle; 
         FIG. 5  is a sectional view of a cooling fan; 
         FIG. 6  is a schematic diagram illustrating that a main fan is communicated with the water tank through an air duct; 
         FIG. 7  is a schematic structural diagram of a connector. 
     
    
    
     Reference signs in drawings: 
       100 : cooling fan,  10 : housing;  11 : front shell;  12 : rear shell;  13 : bottom shell;  14 : connector; first connection through hole;  142 : second connection through hole;  15 : air inlet;  16 : air outlet;  17 : filter member;  18 : grid plate;  20 : air blowing system;  21 : main fan;  22 : air guide member,  30 : water tank;  31 : atomizer;  40 : mist vent;  41 : discharged mist separation strip; and  42 : air duct. 
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The technical solutions in the embodiments of the present disclosure will be dearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. It should be noted that when a component is considered to be “connected” to another component, it may be directly connected to another component, or an intermediate component possibly exists at the same time. Unless otherwise defined, all technical and scientific terms used herein are the same as meanings of general understandings of those skilled in the art of the disclosure. It should be further noted that unless otherwise explicitly specified and defined, the terms “mounted”, “coupled” and “connected” shall be understood broadly, and may he, for example, fixedly connected, or detachably connected, or integrally connected, or mechanically connected, or electrically connected, or interconnection between the interiors of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure according to specific situations. The terms used in the description of the disclosure herein are merely to describe the specific embodiments, not intended to limit the disclosure. 
     It should be further noted that in the description of the present disclosure, it should be noted that orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inside”, “outside”, and the like are orientations or positional relationships as shown in the drawings, and are only for the purpose of facilitating and simplifying the description of the present disclosure instead of indicating or implying that devices or elements indicated must have particular orientations, and be constructed and operated in the particular orientations, so that these terms are not construed as limiting the present disclosure. In addition, the terms “first”, “second” and “third” are only for the purpose of description, and may not be understood as indicating or implying the relative importance. 
     The present disclosure discloses a cooling fan, which achieves balanced cooling of an air flow while the manufacturing and use cost is reduced. 
     As shown in  FIG. 1  and  FIG. 2 , the cooling fan  100  includes a housing  10 , an air blowing system  20 , and a water tank  30 . The air blowing system  20  and the water tank  30  are located in the housing  10 . The housing  10  is provided with an air inlet  15  and an air outlet  16  corresponding to the air blowing system  20 . When working, the air blowing system  20  draws air from the air inlet  15  and blows air from the air outlet  16  to an external space, A corresponding atomizer  31  is arranged in the water tank  30 . The atomizer  31 . atomizes water in the water tank  30 , and the mist is blown from the air outlet  16  under the action of the air blowing system  20 . 
     The housing  10  includes a front shell  11 , a rear shell  12 , and a bottom shell  13 ; the front shell  11  and the rear shell  12  fixedly cooperate with each other to form a shell body with an accommodating space; the air blowing system  20  is arranged in the shell body formed by connecting the front shell  11  with the rear shell  12 ; the air outlet  16  is located on the front shell  11 . and the air inlet  15  is located on the rear shell  12 . The bottom shell  13  is located at the bottom of the housing  10 . 
     The bottom shell  13  cooperates with the front shell  11  and the rear shell  12  through the connector  14 . The water tank  30  is located in the bottom shell  13 . 
     In the present disclosure, the water tank  30  may be fixed in the bottom shell  13 , or may cooperate with the bottom shell  13  by using a detachable structure, so that the water tank  30  may be removed from the housing  10  according to a need. In the present disclosure, the arrangement manner for the water tank  30  is not specifically limited. 
     As shown in  FIG. 3  and  FIG. 4 , in the present disclosure, the housing  10  is provided with a plurality of mist vents  40 . The plurality of mist vents  40  are respectively disposed at the air inlet  15  and/or the air outlet  16 . The water tank  30  is simultaneously connected to the air blowing system  20  and the plurality of mist vents  40 , respectively. Water mist generated by the atomizer  31  that acts on the water in the water tank  30  is simultaneously blown out from the plurality of mist vents  40  under the action of the air blowing system  20  and is then discharged from the air outlet  16  under the action of the air blowing system  20 . The plurality of mist vents  40  are arranged to achieve multi-point spraying of the cooling fan  100 . which ensures that an air flow blown out of the air blowing system  20  achieves uniform cooling at the air outlet  16 . Furthermore, the single atomizer  31  is arranged to cooperate with the plurality of mist vents  40  to achieve multi-point spraying, which can reduce the manufacturing cost and the energy consumption during use and reduce the use cost. 
     Further, the plurality of mist vents  40  may be simultaneously arranged at the air outlet  16  or simultaneously arranged at the air inlet  15 , or the air outlet  16  and the air inlet  15  are both provided with the corresponding mist vents  40 . This can be specifically set according to usage and design requirements. Preferably, the plurality of mist vents  40  are arranged at the air outlet  16 . 
     The air outlet  16  is provided with one or more discharged mist separation strips  41 . The discharged mist separation strips  41  and the front shell  11  are integrated. The discharged mist separation strips  41  are located at an air discharging end of the air blowing system  20 . The discharged mist separation strips  41  are hollowed. The mist vents  40  are located in the discharged mist separation strips  41  and are communicated with the water tank  30 , After the water in the water tank  30  is atomized by the atomizer  31  to generate the water mist, under the action of the air blowing system  20 , the water mist is blown out from the mist vents  40  along the discharged mist separation strips  41 . In the present disclosure, when there is one discharged mist separation strip  41 , each discharged mist separation strip  41  may be provided with a plurality of mist vents  40 , or the mist vents  40  that are shaped like the discharged mist separation strip  41  are provided. 
     In one implementation, the plurality of discharged mist separation strips  41  are vertically disposed, and are uniformly distributed at the air outlet  16  along a horizontal direction. in this embodiment, the plurality of vertically disposed discharged mist separation strips  41  are horizontally uniformly distributed, A space for air to pass through is arranged between two adjacent discharged mist separation strips  41 , so that when the mist is discharged uniformly at the air outlet  16 , the air blown by the air blowing system  20  can also be guided. 
     In another embodiment, the discharged mist separation strips  41  are all annularly disposed. When there is one discharged mist separation strip  41 , the one discharged mist separation strip  41  may be uniformly distributed with a plurality of mist vents  40 , or mist vents  40  corresponding to the shape of the discharged mist separation strip  41 . When there are a plurality of discharged mist separation strips  41 , the plurality of discharged mist separation strips  41  may be independently disposed, or may be in a divergent distribution from inside to outside. 
     The discharged mist separation strips  41  may be of a strip shape, a ring shape, or other shapes, The shape is not specifically limited here. 
     Continuing to refer to  FIG. 5 , further, an air guide member  22  is arranged between the discharged mist separation strips  41  and the air blowing system  20 . Specifically, the air guide member  22  is fixedly connected to the front shell  11 , and the air guide member  22  is provided with a hole for air to pass through. 
     Further, a filter member  17  is provided at the air inlet  15 ; and the filter member  17  is arranged on the outer side of the air inlet  15  through a grid plate  18 . Specifically, the air inlet  15  is arranged on the rear shell  12 ; and the filter member  17  is arranged on the outer side of the air inlet  15 . When working, the air blowing system  20  extracts air from the outside through the air inlet  15 . The filter member  17  is used for filtering the extracted air to prevent debris from enter the housing  10  through the air inlet  15 . The grid plate  18  is clamped with the rear shell  12 . The filter member  17  is arranged in an accommodating space formed by clamping between the grid plate  18  and the rear shell  12 . The grid plate  18  is provided with a plurality of holes for air to pass through. The filter member  17  is made of one or more materials of sponge, filter paper, cotton cloth, nonwoven cloth, and the like. 
     When working, the air blowing system  20  extracts air from the air inlet  15  and blows air from the air outlet  16 . Furthermore, the water mist discharged by the mist vents  40  is blown out from the air outlet  16  to cool and humidify the external space. 
     In one embodiment, the air blowing system  20  includes a main fan  21  and an atomization fan; the main fan  21  corresponds to the air inlet  15  and the air outlet  16 ; and the atomization fan blows air to the water tank  30 . Specifically, the main fan  21  can be fixedly connected to the front shell  11  or the rear shell  12 . When working, the main fan  21  extracts air from the air inlet  15  and then blows air from the air outlet  16  to the outside. At the same time, when multi-point spraying is needed, the atomization fan works to blow air into the water tank  30 , so as to blow the water mist generated by atomization out of the mist vents  40 . The water mist is then blown to the external space under the action of the main fan  21 . 
     As shown in  FIG. 5  and  FIG. 6 , in another embodiment, the air blowing system  20  includes a main fan  21 . The main fan  21  corresponds to the air inlet  15  and the air outlet  16 , The water tank  30  is communicated to an air blowing end of the main fan  21  through an air duct  42 . When working, the main fan  21  may extract air from the air inlet  15 , and blow air to the air outlet  16  and the air duct  42 . An air flow generated during the working of the main fan  21  partially passes through the air duct  42  and enters the water tank  30 . The water mist, generated by atomization by the atomizer  31 , in the water tank  30  is blown out of the mist vents  40  under the action of the corresponding air flow and is blown to the external space under the action of the air flow of the air outlet  16 . Only one main fan  21  can meet the air blowing requirement and the spraying requirement of the cooling fan  100 . 
     As shown in  FIG. 6  and  FIG. 7 , in the present disclosure, the air duct  42  is arranged on the air guide member  22 . The air guide member  22  is injection-molded. The connector  14  is provided with a first connection through hole  141 . The air duct  42  is communicated with the water tank  30  in the bottom shell  13  through the first connection through hole  141 . The connector  14  is further provided with a second connection through hole  142 . The plurality of mist vents  40  are communicated with the water tank  30  in the bottom shell  13  through the second connection through hole  142 . Joints between the mist vents  40  and the second connection through hole  142  are in sealing fit. 
     Working principle: 
     The atomizer  31  atomizes the water in the water tank  30  to generate the water mist. The air blowing system  20  can work to blow out the water mist in the water tank  30  from the plurality of mist vents  40  to achieve multi-point spraying at the air outlet  16  or the air inlet  15 . At the same time, the water mist sprayed from the mist vents  40  is blown to the external space from the air outlet  16  under the action of the air blowing system  20 . The multi-point spraying ensures the balanced cooling of the air flow at the air outlet  16 , and the single atomizer  31  can meet the requirement of multi-point spraying, thus reducing the manufacturing cost and the use cost. 
     The present disclosure can have various implementations and transformations without departing from the generalized spirit and scope of the present disclosure. The above implementations are used for illustrating the invention, but not intended to limit the scope of the present disclosure.