CN113483421A

CN113483421A - Wet curtain assembly, water return structure and cooling fan

Info

Publication number: CN113483421A
Application number: CN202110801351.2A
Authority: CN
Inventors: 黄雪珍; 杨德豪; 白建东; 梁桂明; 张逸鸿; 刘陈
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-10-08
Anticipated expiration: 2041-07-15
Also published as: CN113483421B

Abstract

The invention relates to the technical field of cooling fans, in particular to a wet curtain assembly, a water return structure and a cooling fan. The thermantidote includes the return water structure, fan and aircraft nose, the aircraft nose is equipped with relative air intake and the air outlet that sets up, direction along air intake to air outlet, return water structure and fan have set gradually, the return water structure includes wet curtain subassembly and divides the box subassembly, divide the box subassembly to be used for distributing water on wet curtain subassembly, wet curtain subassembly includes wet curtain support and wet curtain, wet curtain support is used for installing in the aircraft nose of thermantidote, the plane at the mounted position place of wet curtain support intersects with the inner wall of aircraft nose and forms first plane figure, the outline of wet curtain support encloses into second plane figure, the area of second plane figure is greater than the area of the biggest quadrangle inscription of first plane figure, wet curtain distributes on wet curtain support and with the shape phase-match of wet curtain support. The wet curtain assembly increases the area of the wet curtain as much as possible, is beneficial to increasing the evaporation capacity of water, and ensures the effects of cooling and humidifying.

Description

Wet curtain assembly, water return structure and cooling fan

Technical Field

The invention relates to the technical field of cooling fans, in particular to a wet curtain assembly, a water return structure and a cooling fan.

Background

The cooling fan is a cooling device between the fan and an air conditioner, has multiple functions of air supply, refrigeration, humidification and the like, is used for sending cold air lower than room temperature and sending warm and humid air by taking water as a medium, has the advantages of low price, low power consumption, flexible movement and the like, and is popular among many consumers nowadays.

The thermantidote includes fan and return water structure, the return water structure is used for intaking, evaporation and return water, the return water structure includes wet curtain subassembly, wet curtain subassembly is used for increasing area of contact and the time of air current and water, the thermantidote is at the during operation, the fan rotates, outside air current is inhaled in the thermantidote by the air intake under the effect of fan, the heat in the gaseous state absorption air current is become from liquid evaporation rapidly on the wet curtain subassembly, in order to form cold wind and send out by the air outlet, and then realize the cooling, the effect of humidification.

However, current wet curtain subassembly is the cuboid shape usually, the aircraft nose of part thermantidote is spherical form, ellipsoid shape, the wet curtain subassembly and spherical form of cuboid shape, the aircraft nose suitability of ellipsoid shape is not high, this not only extravagant aircraft nose inner space, wet curtain area is little, influence the evaporation capacity of water, wet curtain subassembly can't cover the air intake completely moreover, partial air current does not carry out the direct air outlet of sending out of heat and humidity exchange through wet curtain subassembly, seriously influence the cooling of thermantidote, the humidification effect.

Disclosure of Invention

The main purposes of the invention are: the utility model provides a wet curtain subassembly, return water structure and thermantidote, it is not high with the aircraft nose suitability to aim at solving current wet curtain subassembly, seriously influences the problem of cooling, the humidification effect of thermantidote.

In order to achieve the technical problem, the invention provides a wet curtain assembly, which comprises a wet curtain support and a wet curtain, wherein the wet curtain support is arranged in a machine head of a cooling fan, a plane where the wet curtain support is arranged is intersected with the inner wall of the machine head to form a first plane figure, the outer contour of the wet curtain support encloses a second plane figure, the area of the second plane figure is larger than that of the largest inscribed quadrangle of the first plane figure, and the wet curtain is distributed on the wet curtain support and matched with the shape of the wet curtain support.

Optionally, the second planar figure surrounded by the outer contour of the wet curtain bracket is in the shape of a convex polygon with the number of sides being greater than 4.

Optionally, the wet curtain bracket is provided with a mounting cavity opened along an outer contour thereof, and the wet curtain is mounted in the mounting cavity.

Optionally, the wet curtain assembly further comprises a limiting bracket, and the limiting bracket is mounted on the wet curtain bracket and can be matched with the wet curtain bracket to limit the wet curtain.

Optionally, the limiting support is movably connected with the wet curtain support, the limiting support can move to an opening position and a closing position, and when the limiting support moves to the closing position, the limiting support is matched with the wet curtain support to limit the wet curtain.

The invention also provides a water return structure, which comprises the wet curtain component and the water distribution box component, wherein the water distribution box component is used for distributing water on the wet curtain component.

Optionally, the water diversion box assembly is arranged at the top of the wet curtain assembly, and the water diversion box assembly is matched with the wet curtain assembly in shape.

Optionally, the water distribution box assembly comprises a box cover and a box bottom, the box cover and the box bottom are enclosed to form an accommodating cavity, and the box cover is connected with the box bottom in a sealing mode.

Optionally, the water diversion box assembly further comprises a sealing ring, and the sealing ring is located between the box cover and the box bottom.

Optionally, a plurality of ribs for retaining water are further formed on the box bottom, and the ribs extend from the bottom to the top of the box bottom.

Optionally, the water return structure further comprises a water receiving box assembly, the water receiving box assembly is used for recovering water flowing out of the wet curtain assembly, and the water receiving box assembly is arranged at the bottom of the wet curtain assembly.

In addition, the invention also provides a cooling fan, which comprises the water return structure, the fan and the machine head, wherein the machine head is provided with an air inlet and an air outlet which are oppositely arranged, and the water return structure and the fan are sequentially arranged along the direction from the air inlet to the air outlet.

Optionally, the thermantidote is the thermantidote that can shake the head, the thermantidote still includes the fuselage, the aircraft nose through the mechanism of shaking the head with the fuselage is connected, the return water structure is fixed on the inner wall of aircraft nose.

The invention has the beneficial effects that: above-mentioned wet curtain subassembly, including wet curtain support and wet curtain, wet curtain distributes on wet curtain support, in order to install in the aircraft nose of thermantidote through wet curtain support, this wet curtain support and with the shape setting of wet curtain support shape assorted, compare in the current wet curtain subassembly that is the cuboid shape, be spherical with the outward appearance of thermantidote, the aircraft nose suitability of ellipse shape is higher, not only realized the make full use of to this shape aircraft nose inner space, and then increase the area of wet curtain as far as possible in the finite space, be of value to the evaporation capacity of increase water, and can be more comprehensive cover the air intake, all air currents that get into in the aircraft nose by the air intake all carry out the heat and moisture exchange through wet curtain earlier with the water on the wet curtain, then send out by the air outlet again, the cooling has been guaranteed, the effect of humidification.

Above-mentioned return water structure is except including wet curtain subassembly, still includes the box subassembly that divides water, and the box subassembly that divides water is used for providing water, and can distribute water on wet curtain subassembly through the box subassembly that divides water for when the air current that gets into in the aircraft nose by the air intake passes through wet curtain, the water on the wet curtain is evaporated into the heat in the gaseous state absorption air current from liquid rapidly, guarantees the normal clear of heat and humidity exchange.

Above-mentioned thermantidote, except including the return water structure, still include fan and aircraft nose, the aircraft nose is equipped with air intake and the air outlet of relative setting, along the direction of air intake to air outlet, has set gradually return water structure and fan. When the cooling fan works, external air flow enters the machine head from the air inlet under the action of the fan, the air flow firstly passes through the wet curtain, water on the wet curtain is rapidly evaporated from a liquid state to a gas state to absorb heat in the air flow so as to realize cooling of the air flow, and then the cooled air flow is sent out from the air outlet which is oppositely arranged. This thermantidote through adopting above-mentioned wet curtain subassembly, can improve the evaporation capacity of water, and then promotes the effect of thermantidote cooling, humidification.

Drawings

The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a cooling fan of the present invention;

FIG. 2 is a schematic view of the head of the cooling fan of FIG. 1 being swung to another position;

FIG. 3 is a schematic view of a water return structure of the intercooler fan of FIG. 1;

FIG. 4 is an exploded view of the water return structure of FIG. 3;

FIG. 5 is a cross-sectional view of the water return structure of FIG. 3;

FIG. 6 is a schematic structural view of a water diversion box assembly of the water return structure of FIG. 3;

FIG. 7 is an exploded view of the water distribution box assembly of FIG. 6;

FIG. 8 is a cross-sectional view of the cartridge assembly of FIG. 6;

FIG. 9 is a schematic view of the construction of the bottom of the water distribution box assembly of FIG. 6;

FIG. 10 is a schematic view of the structure of the cassette bottom of FIG. 9 from another perspective;

FIG. 11 is a schematic view of the lid of the water box assembly of FIG. 6;

wherein, the corresponding relations between the reference numbers and the part names in fig. 1 to fig. 11 are as follows:

10. a wet curtain assembly; 11. a wet curtain support; 111. a mounting cavity; 112. a limiting part; 12. wet curtain; 13. a limiting bracket;

20. a water diversion box assembly; 21. a box cover; 22. a box bottom; 221. a rib is protruded; 222. a water diversion hole; 223. a flow guide block; 224. a limiting column; 23. a seal ring; 24. screw holes;

30. a water receiving box assembly; 31. a water receiving box;

40. a machine head; 41. an air inlet; 42. an air outlet;

50. a body;

60. and a shaking mechanism.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

An embodiment of the present invention provides a wet curtain assembly 10 having a high adaptability to a spherical and ellipsoidal head 40, as shown in fig. 3 to 5, the wet curtain assembly 10 includes a wet curtain bracket 11 and a wet curtain 12, the wet curtain bracket 11 is used to be installed in the head 40 of a cooling fan, a plane where the mounting position of the wet curtain bracket 11 is located intersects with an inner wall of the head 40 to form a first plane figure, an outer contour of the wet curtain bracket 11 encloses a second plane figure, an area of the second plane figure is larger than an area of a largest inscribed quadrangle of the first plane figure, and the wet curtain 12 is distributed on the wet curtain bracket 11 and matches with a shape of the wet curtain bracket 11. The area of the second plane figure surrounded by the outer contour of the wet curtain support 11 is the area of the projection of the wet curtain support 11 in the first plane figure, the outer contour of the wet curtain support 11 refers to a gap portion where the outer contour of the wet curtain support does not include a clearance, and the inscribed quadrangle of the first plane figure refers to four vertexes of the quadrangle on the first plane figure.

The wet curtain assembly 10 comprises a wet curtain bracket 11 and a wet curtain 12, wherein the wet curtain 12 is distributed on the wet curtain bracket 11 to be installed in a machine head 40 of the cooling fan through the wet curtain bracket 11, the shape of the wet curtain bracket 11 and the wet curtain 12 matched with the shape of the wet curtain bracket 11 are arranged, compared with the existing wet curtain component 10 in a cuboid shape, the adaptability with the machine head 40 which is spherical and ellipsoidal in appearance of the cooling fan is higher, not only the internal space of the machine head 40 with the shape is fully utilized, and further, the area of the wet curtain 12 is increased as much as possible in a limited space, which is beneficial to increasing the evaporation amount of water, the air inlet 41 can be covered more completely, all air flow entering the machine head 40 from the air inlet 41 firstly passes through the wet curtain 12 to perform heat and humidity exchange with water on the wet curtain 12, and then is sent out from the air outlet 42, so that the effects of cooling and humidifying are ensured.

In addition, the wet curtain assembly 10 in the present embodiment mainly aims at the head 40 of the spherical cooling fan, and for the head 40 of the spherical shape, the shape of the first plane figure is circular, and the area of the second plane figure surrounded by the outer contour of the wet curtain assembly 10 is larger than the area of the circular inscribed regular quadrangle, thereby realizing a larger area of the wet curtain 12.

In the present embodiment, the second planar figure surrounded by the outer contour of the wet curtain bracket 11 is a convex polygon with the number of sides greater than 4, wherein the second planar figure surrounded by the outer contour of the wet curtain assembly 10 is a regular polygon with the number of sides greater than 4, such as a regular octagon. The wet curtain support 11 plays a role in fixing the wet curtain 12 and is matched with the wet curtain 12 in shape, the outer contour of the wet curtain assembly 10 is set to be in a regular octagon shape, namely, the outer contour of the wet curtain 12 is also set to be in a regular octagon shape, the adaptation degree with the spherical machine head 40 is higher, the effect of fully utilizing the inner space of the machine head 40 can be realized, the area of the wet curtain 12 can be increased, the evaporation capacity of water is increased, air can be exhausted after heat and moisture exchange of air flow passing through the wet curtain 12 and water on the wet curtain 12 is carried out as much as possible, in addition, eight vertexes of the wet curtain assembly 10 in the regular octagon shape are all propped against the inner wall of the machine head 40, the wet curtain assembly can be better clamped in the machine head 40, rotation relative to the machine head 40 is avoided, in addition, the structure setting is relatively simple relative to other convex polygon shapes, and the processing difficulty is reduced. Of course, in other embodiments, the shape of the second planar pattern surrounded by the outer contour of the wet curtain holder 11 may also be a pentagon, a hexagon, a heptagon, a nonagon, a decagon, etc., and the shape of the second planar pattern surrounded by the outer contour of the wet curtain holder 11 may be a regular polygon, a non-regular polygon, a regular polygon, an irregular polygon, or a circular, oval, or an arc shape formed by sequentially connecting a plurality of arcs.

In the present embodiment, the wet curtain bracket 11 is provided with a mounting cavity 111 opened along the outer contour thereof, and the wet curtain 12 is mounted in the mounting cavity 111. Specifically, in the present embodiment, the wet curtain bracket 11 is a frame structure with a certain width, and a mounting cavity 111 is opened in the frame structure along the outer contour thereof, and the wet curtain 12 is placed in the mounting cavity 111. Through seting up installation cavity 111, for wet curtain 12 provides the position of installation, moreover, wet curtain 12 installs in the installation cavity 111 of wet curtain support 11 and is full of whole installation cavity 111 to realize the time and space utilization maximize, guarantee the abundant heat and humidity exchange effect of air current and wet curtain 12. In the embodiment, the wet curtain 12 may be integrally installed in the installation cavity 111, or the wet curtain 12 may also be formed by combining a plurality of split portions, each of which is installed in the installation cavity 111 to further fill the entire installation cavity 111, for example, for a regular octagonal-shaped wet curtain 12, for convenience of production and processing, the wet curtain 12 may be formed by combining a plurality of split portions, and for convenience of individually fixing each split portion of the wet curtain 12, two adjacent installation cavities 111 may be separated by a partition.

Further, in the present embodiment, the wet curtain assembly 10 further includes a limiting bracket 13, and the limiting bracket 13 is mounted on the wet curtain bracket 11 and can cooperate with the wet curtain bracket 11 to limit the wet curtain 12. Specifically, in the present embodiment, a limiting portion 112 is formed on the wet curtain support 11, a mounting cavity 111 is formed between the limiting support 13 and the limiting portion 112, the limiting support 13 and the limiting portion 112 cooperate to form a limiting structure, and the wet curtain 12 is limited and fixed in the limiting structure, wherein the width of the wet curtain 12 is equal to the width of the wet curtain support 11. Like this, when installing wet curtain 12 in wet curtain support 11's installation cavity 111, can play the limiting displacement to wet curtain 12 through spacing portion 112 that forms on spacing support 13 and the wet curtain support 11 to realize the effect of fixed wet curtain 12, prevent that wet curtain 12 and wet curtain support 11 from taking place to break away from, improve wet curtain assembly 10's reliability.

Still further, in this embodiment, the limiting bracket 13 is movably connected to the wet curtain bracket 11, the limiting bracket 13 can move to the open position and the closed position, and when the limiting bracket 13 moves to the closed position, the limiting bracket 13 cooperates with the wet curtain bracket 11 to limit the wet curtain 12. Specifically, in the present embodiment, one end of the position limiting bracket 13 is rotatably installed on the wet curtain bracket 11, and the other end is snap-connected to the wet curtain bracket 11, and the wet curtain 12 can be put in or taken out by opening or closing the position limiting bracket 13. When wet curtain 12 is installed, the buckle is opened, limiting support 13 moves to the opening position, wet curtain 12 is installed in installation cavity 111, after the wet curtain is installed in place, limiting support 13 moves to the closing position, locking is achieved through buckle and wet curtain support 11, and therefore the wet curtain 12 can be firmly fixed under the limiting effect of the limiting structure formed by limiting support 13 and limiting portion 112. This spacing support 13's structural arrangement, accessible activity spacing support 13 is in order to put into or take out wet curtain 12, makes the installation and the change of wet curtain 12 become more convenient to adopt the buckle to lock with wet curtain support 11 and also be convenient for spacing support 13 open and close. Of course, in other embodiments, the limiting portions 112 may be formed directly on both sides, or two-side limiting may be performed by two limiting brackets 13.

In this embodiment, the wet curtain holder 11 has a water inlet portion at the top thereof. Specifically, in the present embodiment, the width of the top of the wet curtain bracket 11 is smaller than the width of the bottom and side of the wet curtain bracket 11 to form a gap between the wet curtain bracket 11 and the stopper bracket 13 for allowing the wet curtain 12 to partially leak out. So, water can fall and evenly distributed on whole wet curtain 12 through wet curtain 12 top smoothly, guarantees that the air current fully carries out the wet exchange of heat with the water on the wet curtain 12, and the width of wet curtain support 11 lateral part and bottom is similar to the width of wet curtain 12, is convenient for fix wet curtain 12 under the limiting displacement of spacing support 13 cooperation wet curtain support 11 on the one hand, and on the other hand avoids the outflow of water. In addition, in the present embodiment, a plurality of drainage holes are opened at the bottom of the wet curtain bracket 11 to facilitate drainage of excess water on the wet curtain 12.

Another embodiment of the present invention provides a water returning structure including the above wet curtain assembly 10, the water returning structure further includes a water distribution box assembly 20, and the water distribution box assembly 20 is used for distributing water on the wet curtain assembly 10.

The water return structure comprises the wet curtain component 10 and a water distribution box component 20, the water distribution box component 20 is used for providing water, water can be distributed on the wet curtain component 10 through the water distribution box component 20, when air flow entering the machine head 40 from the air inlet 41 passes through the wet curtain 12, the water on the wet curtain 12 is rapidly evaporated from a liquid state into a gas state to absorb heat in the air flow, and normal heat and humidity exchange is guaranteed.

In this embodiment, with continued reference to fig. 6 to 11, the water diversion box assembly 20 is disposed on the top of the wet curtain assembly 10, and the water diversion box assembly 20 matches with the wet curtain assembly 10 in shape, wherein the water diversion box assembly 20 is provided with a plurality of water diversion holes 222, and the wet curtain 12 is communicated with the inside of the water diversion box assembly 20 through the plurality of water diversion holes 222. Because the wet curtain component 10 is in the shape of a regular octagon and is matched with the wet curtain component 10 and the spherical machine head 40, the water distribution box component 20 is also arranged along with the shape of the wet curtain component 10, namely the shape of the water distribution box component 20 is the same as the shape of three edges at the top of the wet curtain support 11, and the plurality of water distribution holes 222 on the water distribution box component 20 are over against the wet curtain 12. The thermantidote is at the during operation, the water pump can be with in the water tank of fuselage 50 the water pumping to divide in the box subassembly 20, after the reposition of redundant personnel of dividing box subassembly 20, hydroenergy is more even falls on wet curtain 12, and, this divide box subassembly 20 also sets up along with the shape of wet curtain subassembly 10, can make full use of the inside space of aircraft nose 40 on the one hand, water in the box subassembly 20 of on the other hand divides can distribute on whole wet curtain 12 through a plurality of reposition of redundant personnel water holes 222 smoothly. In addition, in the present embodiment, the water distribution box assembly 20 is provided with screw holes 24 so that screws are fixed on the inner wall of the head 40.

In this embodiment, the water diversion box assembly 20 includes a box cover 21 and a box bottom 22, the box cover 21 and the box bottom 22 enclose to form an accommodating cavity, and the box cover 21 is connected to the box bottom 22 in a sealing manner. Specifically, in this embodiment, the box bottom 22 is disposed above the wet curtain assembly 10 and is in a shape matching with the top of the wet curtain assembly 10, a plurality of water distribution holes 222 are uniformly formed in the position, facing the wet curtain 12, of the box bottom 22, the box cover 21 is in the same shape as the box bottom 22, and the box cover 21 and the box bottom 22 are fixed through the matching of the latch and the slot and the buckle. This box subassembly 20 that divides is formed by lid 21 and box bottom 22 two parts combination, there is water between lid 21 and the box bottom 22, the thermantidote is at the during operation, water just can evenly be distributed on wet curtain subassembly 10 to a plurality of reposition of redundant personnel water holes 222 that wet curtain 12 top and evenly seted up on through the box bottom 22, and for preventing the problem that water leakage appears in box subassembly 20 that divides in the course of the work, can seal the processing between lid 21 and the box bottom 22, only leave on the box subassembly 20 that divides water to be used for taking out the inlet opening and the reposition of redundant personnel water hole 222 that divide in the box subassembly 20 with water can.

Further, in this embodiment, the water diversion box assembly 20 further includes a sealing ring 23, and the sealing ring 23 is located between the box cover 21 and the box bottom 22. Specifically, in this embodiment, a sealing groove is further formed in the box bottom 22, a sealing ring 23 is placed in the sealing groove, then the box cover 21 is assembled with the box bottom 22 through the matching of the clamping tongue and the clamping groove and the clamping buckle, and the sealing ring 23 between the box cover 21 and the box bottom 22 is extruded to realize front waterproof sealing, so that the sealing effect is ensured. By adding the sealing ring 23 between the box cover 21 and the box bottom 22, the function of sealing and no water leakage can be achieved, and the waterproof sealing mode is simple. Of course, in other embodiments, ultrasonic welding technology can be used instead of the sealing ring 23, which can also achieve the effect of sealing without water leakage, and the ultrasonic welding utilizes high-frequency vibration waves to be transmitted to the welding surfaces of the box bottom 22 and the box cover 21, and under the condition of pressurization, the welding surfaces of the box bottom 22 and the box cover 21 are mutually vibrated and rubbed to generate heat energy to melt the plastic, so as to form fusion between the molecular layers.

In this embodiment, the box bottom 22 is further formed with a plurality of ribs 221 for retaining water, and the ribs 221 extend from the top bottom to the top of the box bottom 22. Because the box bottom 22 sets to middle high both sides low along with the shape of wet curtain subassembly 10, according to the characteristic that normal water flows toward low, two sides water is many in the box subassembly 20 that divides, middle water is few, this can cause the water yield inhomogeneous of a plurality of reposition of redundant personnel water holes 222 on the box bottom 22, so set up a plurality ofly respectively on the both sides at the box bottom 22 from the bottom of box bottom 22 to the protruding muscle 221 of top extension, can suitably reduce the water yield on both sides, avoid water whole to concentrate on the bottom position on both sides in the box subassembly 20 that divides, make a plurality of reposition of redundant personnel water holes 222 on the box bottom 22 can more even box that falls into water, and then through the reposition of redundant personnel back hydroenergy evenly distributed of dividing the water subassembly 20 on wet curtain subassembly 10. In addition, in this embodiment, two diversion blocks 223 are further formed on the box bottom 22, the two diversion blocks 223 are located in the middle of the box bottom 22, and the diversion blocks 223 are used for guiding the water entering from the water inlet to two sides and then diverting the water to the wet curtain 12 through the water diversion holes 222.

In this embodiment, as shown in fig. 3 to 5, the water returning structure further includes a water receiving box assembly 30, the water receiving box assembly 30 is used for recovering water flowing out from the wet curtain assembly 10, and the water receiving box assembly 30 is disposed at the bottom of the wet curtain assembly 10. Specifically, in the present embodiment, the bottom of the wet curtain assembly 10 is located in the water receiver assembly 30, and the water receiver assembly 30 is fixed to the bottom of the wet curtain bracket 11 by a snap and closes the plurality of water discharge ports. Through setting up water receiving box subassembly 30, water receiving box subassembly 30 is used for receiving by the discharge unnecessary water of outlet discharge for the water of wet curtain 12 of flowing through collects in water receiving box subassembly 30, and water receiving box subassembly 30 wraps the bottom of wet curtain subassembly 10 completely, has guaranteed the recovery effect to the water that wet curtain 12 flows out, avoids leaking or forms ponding in aircraft nose 40. In addition, in this embodiment, a water return hole is further formed in the water receiving box assembly 30, water in the water receiving box assembly 30 can be guided back to the water tank of the body 50 through the water return hole, and the circulation is performed, so that water inlet, evaporation and water return are realized through the water return structure.

The cooling fan further includes a blower (not shown in the figures) and a head 40, the head 40 is spherical and is provided with an air inlet 41 and an air outlet 42 which are oppositely arranged, and the water return structure and the blower are sequentially arranged along the direction from the air inlet 41 to the air outlet 42.

The cooling fan comprises a water return structure, a fan and a machine head 40, wherein the machine head 40 is provided with an air inlet 41 and an air outlet 42 which are arranged oppositely, and the water return structure and the fan are sequentially arranged along the direction from the air inlet 41 to the air outlet 42. When the cooling fan works, external air flow enters the machine head 40 from the air inlet 41 under the action of the fan, the air flow firstly passes through the wet curtain 12, water on the wet curtain 12 is rapidly evaporated from a liquid state to a gas state to absorb heat in the air flow so as to realize cooling of the air flow, and then the cooled air flow is sent out from the air outlet 42 which is oppositely arranged. This thermantidote through adopting above-mentioned wet curtain subassembly 10, can improve the evaporation capacity of water, and then promotes the effect of thermantidote cooling, humidification.

In this embodiment, the cooling fan is a cooling fan capable of shaking the head, the cooling fan further comprises a machine body 50, the spherical machine head 40 is installed above the machine body 50 and connected with the machine body 50 through a shaking mechanism 60, and the water return structure is fixed on the inner wall of the machine head 40. This thermantidote is at the during operation, fuselage 50 is fixed motionless, can drive the aircraft nose 40 through the mechanism 60 of shaking the head around the shaking of 90 degrees angles about the aircraft nose 40 center pin realization in vertical direction, satisfy the air supply demand of different angles, and, for making the aircraft nose 40 shake the head smoothly about 90 degrees angles, the bottom of the wet curtain subassembly 10 of regular octagon shape still has the breach, the part structure of the mechanism 60 of shaking the head passes the motor in breach and the aircraft nose 40 and is connected in order to drive whole aircraft nose 40 and shake the head, in addition, for the shape phase-match with this wet curtain subassembly 10, water receiver subassembly 30 includes two water receivers 31, the both sides of the breach are located two water receivers 31 respectively in wet curtain subassembly 10 bottom. Moreover, the backwater structure is fixed on the aircraft nose 40, and the backwater structure can shake the head along with aircraft nose 40 angle of 90 degrees from top to bottom in spherical aircraft nose 40 like this, and, no matter aircraft nose 40 shakes the head to arbitrary angular position, wet curtain 12 is perpendicular to the direction setting of air intake 41 to air outlet 42 all the time, in order to realize the abundant contact with the air current, guarantee the maximum water yield evaporation capacity, in addition, the sealing washer 23 that sets up between lid 21 and box bottom 22 can prevent to divide box subassembly 20 to shake the problem that the in-process appears leaking along with aircraft nose 40.

Further, in the present embodiment, the water distribution box assembly 20 is fixedly connected with the inner wall screw of the machine head 40, and the wet curtain assembly 10 and the water receiving box assembly 30 are clamped in the machine head 40. Specifically, the water diversion box assembly 20 is fixed on the inner wall of the machine head 40 by passing screws through screw holes 24, and the box bottom 22 of the water diversion box is further provided with a limiting column 224, the water receiving box assembly 30 is limited in the machine head 40 through a protruding structure at the bottom, and the wet curtain assembly 10 is limited and clamped under the effects of the limiting column 224, a shell of the machine head 40 and the water receiving box assembly 30, wherein the shell of the machine head 40 is formed by a front side grid and a rear side grid, the front side grid is provided with an air inlet 41, and the rear side grid is provided with an air outlet 42. When the cooling fan is installed, the water receiving box assembly 30 is fixed at the bottom of the wet curtain assembly 10 in a buckling mode to form an integral structure, the water distribution box assembly 20 is fixed on the front side grating through screws, then the wet curtain component 10 and the water receiving box component 30 are integrally arranged in the machine head 40, the integral structure formed by the wet curtain component 10 and the water receiving box component 30 is positioned below the water distribution box component 20, when the wet curtain assembly 10 abuts against the limiting column 224, the wet curtain assembly 10 and the water receiving box assembly 30 are installed in place, at this time, the rear side grating and the front side grating of the machine head 40 are installed, the effect of limiting the wet curtain assembly 10 can be achieved by the back side grid of the head 40 and the limiting column 224, and, for the water receiving box assembly 30 fixedly connected with the wet curtain assembly 10, the bottom of the machine head 40 is provided with a limit position, so that the wet curtain assembly 10 and the water receiving box assembly 30 are clamped in the machine head 40. Above-mentioned wet curtain subassembly 10 and water receiver subassembly 30's fixed mode has not only realized the firm fixed of wet curtain subassembly 10 and water receiver subassembly 30 in aircraft nose 40, is convenient for wet curtain subassembly 10's installation and dismantlement moreover to be convenient for change wet curtain 12 at any time. In addition, the one end protrusion of the box subassembly 20 that divides that is located wet curtain subassembly 10 top sets up in wet curtain subassembly 10, and the spacing post 224 of intermediate position at this protrusion end, so that form spacing post 224 and play better spacing effect, nevertheless to dividing the reposition of redundant personnel water hole 222 that sets up on the box subassembly 20 of dividing all the time just to the top position of wet curtain 12, make by the whole evenly distributed of the water that divides the box subassembly 20 to flow on wet curtain 12, prevent that rivers from to wet curtain 12 outside.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A wet curtain assembly, comprising:

the wet curtain support (11) is used for being installed in a machine head (40) of a cooling fan, a plane where the installation position of the wet curtain support (11) is located is intersected with the inner wall of the machine head (40) to form a first plane figure, the outer contour of the wet curtain support (11) encloses a second plane figure, and the area of the second plane figure is larger than that of the largest inscribed quadrangle of the first plane figure; and

the wet curtain (12) is distributed on the wet curtain bracket (11) and is matched with the shape of the wet curtain bracket (11).

2. The wet curtain assembly according to claim 1, wherein the second planar pattern surrounded by the outer contour of the wet curtain holder (11) is shaped as a convex polygon with a number of sides greater than 4.

3. Wet curtain assembly according to claim 1 or 2, wherein the wet curtain holder (11) is provided with a mounting cavity (111) along its outer contour, the wet curtain (12) being mounted in the mounting cavity (111).

4. The wet curtain assembly of claim 3, wherein the wet curtain assembly (10) further comprises a limiting bracket (13), the limiting bracket (13) being mounted on the wet curtain bracket (11) and being capable of cooperating with the wet curtain bracket (11) to limit the wet curtain (12).

5. The wet curtain assembly according to claim 4, wherein the limiting bracket (13) is movably connected with the wet curtain bracket (11), the limiting bracket (13) can move to an opening position and a closing position, and when the limiting bracket (13) moves to the closing position, the limiting bracket (13) is matched with the wet curtain bracket (11) to limit the wet curtain (12).

6. A water return structure comprising the wet curtain assembly (10) as claimed in any one of claims 1 to 5 and a water distribution box assembly (20), the water distribution box assembly (20) being for distributing water over the wet curtain assembly (10).

7. The water return structure according to claim 6, wherein the water diversion box assembly (20) is disposed on top of the wet curtain assembly (10), and the water diversion box assembly (20) matches the shape of the wet curtain assembly (10).

8. The water return structure according to claim 7, wherein the water distribution box assembly (20) comprises a box cover (21) and a box bottom (22), the box cover (21) and the box bottom (22) enclose to form an accommodating cavity, and the box cover (21) is hermetically connected with the box bottom (22).

9. The water return structure according to claim 8, wherein the water distribution box assembly (20) further comprises a sealing ring (23), and the sealing ring (23) is located between the box cover (21) and the box bottom (22).

10. The water return structure according to claim 8 or 9, wherein the box bottom (22) is further formed with a plurality of ribs (221) for retaining water, and the ribs (221) extend from the bottom to the top of the box bottom (22).

11. The water return structure according to claim 6, further comprising a water-receiving box assembly (30), wherein the water-receiving box assembly (30) is used for recovering water flowing out of the wet curtain assembly (10), and the water-receiving box assembly (30) is arranged at the bottom of the wet curtain assembly (10).

12. A cooling fan, comprising the water return structure, the fan and the machine head (40) according to any one of claims 6 to 11, wherein the machine head (40) is provided with an air inlet (41) and an air outlet (42) which are oppositely arranged, and the water return structure and the fan are sequentially arranged along the direction from the air inlet (41) to the air outlet (42).

13. The cooling fan according to claim 12, wherein the cooling fan is a cooling fan capable of shaking the head, the cooling fan further comprises a machine body (50), the machine head (40) is connected with the machine body (50) through a shaking mechanism (60), and the water return structure is fixed on the inner wall of the machine head (40).