CN113405182B - Head and cooling fan - Google Patents

Abstract

The present invention relates to the field of cooling fan technology, and specifically to a machine head and a cooling fan including the machine head. The machine head includes an air duct assembly, a fan assembly and a wet curtain assembly, wherein: an air duct is formed in the air duct assembly, and the air inlet and the air outlet of the air duct are respectively arranged on two opposite sides of the air duct assembly; the fan assembly is used to drive the airflow to flow along the direction from the air inlet to the air outlet; the wet curtain assembly is fixed on the air duct assembly and is located on the air inlet side of the fan assembly, and when the machine head shakes up and down, the wet curtain assembly swings synchronously with the air duct assembly. While utilizing the cooperation of the fan assembly and the air duct assembly to obtain a higher wind speed and a longer air supply distance, a wet curtain assembly for humidification and cooling is arranged at the air inlet of the air duct and swings synchronously with the random head. During the circulating air supply process, the wet curtain assembly can always be perpendicular to the air outlet direction, and the best humidification and cooling effect is always maintained.

Description

Head and cooling fan

Technical Field

The invention relates to the technical field of cooling fans, and in particular to a machine head and a cooling fan comprising the machine head.

Background Art

With the continuous development of society and the improvement of science and technology, the number of complex products in the home appliance market is increasing. Most of the existing circulation fans only have the function of blowing air. The cooling fan, also known as the air conditioning fan, is a cooling device between a fan and an air conditioner. It has multiple functions such as air supply, refrigeration, and humidification. The cooling fan uses water as the medium and can deliver cold air below room temperature, or warm and humid air. Moreover, the cooling fan is cheap, has low power consumption, and is flexible to move, and is loved by many groups.

Most existing cold fans adjust the wind sweeping angle by adjusting the wind guide plate to swing up and down or left and right. However, the wind guide plate has limited adjustment angle and will cause loss of air volume, which has certain defects. Moreover, the kinetic energy of a cold fan with only cooling function is single, and users basically do not use it in winter. In order to achieve a large range of air discharge from the cold fan and be able to use the humidification function in winter, the advantages of large air volume and high wind speed of the circulating fan can be integrated with it to form a high-performance, cost-effective product. Therefore, cold fans that can humidify and cool have come into being to meet the needs of market users. In addition, in order to achieve a large range of air discharge from the cold fan, the head is usually set to swing up and down, so that the positional relationship between the wet curtain with humidification function and the fan is constantly changing, affecting the humidification and cooling effect.

Summary of the invention

The main purpose of the present invention is to provide a machine head and a cold fan including the machine head, aiming to solve the technical problem that in the existing cold fans with humidification function, the position relationship between the wet curtain and the fan will constantly change, affecting the humidification and cooling effect.

In order to achieve the above-mentioned object of the invention, according to a first aspect of an embodiment of the present invention, the present invention provides a head.

The substrate according to an embodiment of the present invention comprises:

An air duct assembly having an air duct formed therein, wherein an air inlet and an air outlet of the air duct are respectively arranged on two opposite sides of the air duct assembly;

A fan assembly, used for driving air flow to flow in a direction from the air inlet to the air outlet;

The wet curtain assembly is fixed on the air duct assembly and is located at the air inlet side of the fan assembly. When the head of the fan shakes up and down, the wet curtain assembly and the air duct assembly swing synchronously.

Furthermore, the machine head also includes a support seat and a first rotating assembly, and the first rotating assembly is used to drive the air duct assembly and the wet curtain assembly to shake their heads up and down relative to the support seat.

Furthermore, the first rotating assembly includes a first rotating shaft, a bracket and a first driving motor, one end of the bracket is fixed on the support seat, and the other end of the bracket is sleeved on the first rotating shaft, and the first driving motor is used to drive the air duct assembly to rotate around the axis of the first rotating shaft.

Further, the first drive motor is mounted on the air duct assembly or the bracket. When the first drive motor is mounted on the air duct assembly, the air duct assembly and the first drive motor can rotate synchronously around the axis of the first rotating shaft.

Furthermore, the fan assembly includes an axial flow fan blade and a second drive motor for driving the axial flow fan blade to rotate.

Furthermore, the wet curtain assembly includes a wet curtain, a wet curtain bracket and a downpipe, the wet curtain is fixed in the wet curtain bracket, and the downpipe is used to evenly distribute water to the wet curtain.

Furthermore, a water receiving net parallel to the wet curtain assembly is provided on the air inlet side of the wet curtain assembly, and the wet curtain assembly also includes a water trough provided at the lower part of the wet curtain assembly, and the water receiving net is used to drain the water flow thereon to the water trough.

Furthermore, the air duct assembly includes an air duct housing and a rear mesh cover and a front mesh cover respectively connected to the air duct housing, the rear mesh cover is arranged at the air inlet end of the air duct housing, and the front mesh cover is arranged at the air outlet end of the air duct housing.

In order to achieve the above object of the invention, according to a second aspect of the embodiments of the present invention, the present invention provides a cooling fan.

The cooling fan according to the embodiment of the present invention comprises a chassis, a body and a head provided by the first aspect of the embodiment of the present invention which are connected in sequence.

Furthermore, the cooling fan also includes a second rotating assembly, and the second rotating assembly is used to drive the body to rotate relative to the chassis.

Furthermore, the second rotating assembly includes a second rotating shaft and a third driving motor, the second rotating shaft is fixedly connected to the fuselage and rotationally cooperates with the chassis, and the third driving motor is used to drive the fuselage to rotate around the axis of the second rotating shaft.

Further, in the case where the head includes a first rotating shaft, an axial direction of the first rotating shaft is perpendicular to an airflow direction in the air duct, and an axial direction of the first rotating shaft is perpendicular to an axial direction of the second rotating shaft.

Furthermore, a water tank assembly is provided on the fuselage, and the water tank assembly includes a water tank, a pump and a pipeline. The water tank is used to store water and recover water flowing out of the wet curtain assembly, and the pump is used to send the water in the water tank to the wet curtain assembly through the pipeline.

The beneficial effects of the present invention are as follows: while a higher wind speed and a longer air supply distance are obtained by utilizing the cooperation of the fan assembly and the air duct assembly, a wet curtain assembly for humidification and cooling is arranged at the air inlet of the air duct to swing synchronously with the random head. During the circulating air supply process, the wet curtain assembly can always be perpendicular to the air outlet direction, thereby maintaining the best humidification and cooling effect.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

FIG1 schematically shows a three-dimensional structural diagram of an air duct assembly and a first rotating assembly in a handpiece according to an embodiment of the present invention;

FIG2 schematically shows an exploded view of the structure of the machine head provided by an embodiment of the present invention;

FIG3 schematically shows a cross-sectional view of the structure of the machine head provided by an embodiment of the present invention;

FIG4 schematically shows a three-dimensional structural diagram of a cooling fan provided by an embodiment of the present invention when the head is in a first state;

FIG5 schematically shows a three-dimensional structural diagram of a cooling fan provided by an embodiment of the present invention when the head is in a second state;

FIG6 schematically shows a schematic structural diagram of a chassis and a second rotating assembly in a cooling fan provided in an embodiment of the present invention;

FIG7 is a diagram schematically showing the assembly relationship between the body and the water tank assembly of the cooling fan provided in an embodiment of the present invention;

FIG8 schematically shows a schematic structural diagram of a water tank assembly in a cooling fan provided by an embodiment of the present invention; and

FIG. 9 schematically shows the assembly relationship between the body and the storage box of the cooling fan provided in an embodiment of the present invention.

In the figure:

1. Nose; 2. Body; 3. Chassis;

100, air duct assembly; 101, air duct housing; 102, rear mesh cover; 103, front mesh cover;

200, fan assembly; 201, axial flow fan blade; 202, second drive motor; 203, support rod;

300, wet curtain assembly; 301, wet curtain; 302, wet curtain bracket; 303, downpipe; 304, water receiving net; 305, water tank; 306, downspout;

400, support seat;

500, first rotating assembly; 501, first rotating shaft; 502, bracket; 503, first driving motor; 504, mounting slot; 505, first main gear; 506, first driven gear;

600, second rotating assembly; 601, second rotating shaft; 602, third driving motor; 603, second main gear; 604, second driven gear;

700, water tank assembly; 701, water tank; 702, pipeline; 703, pump; 704, water level detector; 705, water tank installation position; 706, water pump installation position; 707, pump bracket;

800, fuselage bracket;

900, fixed base;

1000, storage box;

1100, power cord;

1200, hand clasping position.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include units that are not explicitly listed or inherent to these products or devices.

In this application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

As shown in Figs. 1-3, the head 1 of the present invention includes an air duct assembly 100, a fan assembly 200 and a wet curtain assembly 300, wherein an air duct is formed in the air duct assembly 100, and the air inlet and air outlet of the air duct are respectively arranged on opposite sides of the air duct assembly 100; the fan assembly 200 is used to drive the air flow to flow along the direction from the air inlet to the air outlet; the wet curtain assembly 300 is fixed on the air duct assembly 100 and is located on the air inlet side of the fan assembly 200, and when the head 1 shakes up and down, the wet curtain assembly 300 swings synchronously with the air duct assembly 100. Preferably, the wet curtain assembly 300 is arranged perpendicular to the air circulation direction, the air duct assembly 100 includes an air duct housing 101, the air duct housing 101 defines an air duct inside, and the fan assembly 200 and the wet curtain assembly 300 are both fixed on the air duct housing 101.

In the above embodiment, a higher wind speed and a longer air supply distance can be obtained by cooperating with the fan assembly 200 and the air duct assembly 100, and a wet curtain assembly 300 for humidification and cooling is arranged at the air inlet of the air duct and fixedly connected to the air duct assembly 100, so that when the head 1 swings up and down in a working state, the wet curtain assembly 300 and the air duct assembly 100 swing synchronously with the head 1, and during the circulating air supply process, the wet curtain assembly 300 can always be perpendicular to the air outlet direction, so as to maintain the best humidification and cooling effect.

In the above embodiment, the shape of the air duct housing 101 is a cylindrical structure, and its shape can be designed as a cylindrical tube structure, a conical tube structure or a combination of the two as needed, and the two ends of the cylindrical structure are respectively the air inlet and the air outlet of the air duct, and the axial direction of the cylindrical structure is parallel to the air flow direction. As shown in the figure, the air duct assembly 100 also includes a rear mesh cover 102 and a front mesh cover 103 connected to the air duct housing 101 respectively, the rear mesh cover 102 is arranged at the air inlet end of the air duct housing 101, and the front mesh cover 103 is arranged at the air outlet end of the air duct housing 101. Specifically, the front mesh cover 103 and the rear mesh cover 102 are both fixed on the air duct housing 101, and the shape of the rear mesh cover 102 is preferably spherical, and an air inlet in the form of a grid is arranged thereon. The air outlet of the air duct is formed on the front mesh cover 103, and the front mesh cover 103 is preferably set to a guide wheel structure, which can make the wind blown out of the head 1 evenly spread in a certain range. The rear mesh cover 102 is detachably connected to the air duct housing 101. After removing the rear mesh cover 102, the wet curtain assembly 300 can be taken out for cleaning or maintenance; the front mesh cover 103 is also detachably connected to the air duct housing 101. After removing the front mesh cover 103, the fan assembly 200 can be cleaned or maintained.

As shown in Figures 1-3, in order to realize the up and down shaking of the head 1, the head 1 also includes a support seat 400 and a first rotating assembly 500, and the first rotating assembly 500 is used to drive the air duct assembly 100 and the wet curtain assembly 300 to shake up and down relative to the support seat 400. Specifically, the first rotating assembly 500 includes a first rotating shaft 501, a bracket 502 and a first driving motor 503, one end of the bracket 502 is fixed on the support seat 400, and the other end of the bracket 502 is sleeved on the first rotating shaft 501, and the first driving motor 503 is used to drive the air duct assembly 100 to rotate around the axis of the first rotating shaft 501. In the above structure, the bracket 502 is fixedly connected relative to the support seat 400. In the process of the first driving motor 503 driving the first rotating shaft 501 to rotate, the first rotating shaft 501 will rotate relative to the bracket 502, thereby causing the air duct assembly 100 and the wet curtain assembly 300 to rotate relative to the bracket 502 and the support seat 400.

In the above embodiments, optionally, the first drive motor 503 is directly or indirectly fixed to the bracket 502 or the support base 400, and the first drive motor 503 is used to directly drive the first rotating shaft 501 to rotate. At this time, the first drive motor 503 itself will not rotate around the axis of the first rotating shaft 501; optionally, the first drive motor 503 is directly or indirectly fixed to the air duct assembly 100, and the first rotating shaft 501 is directly driven to rotate by the first drive motor 503. At this time, the first drive motor 503 itself will rotate around the axis of the first rotating shaft 501 together with the air duct assembly 100. In the embodiment of the present invention, the second setting mode is preferably adopted. As shown in FIG. 1 , a mounting groove 504 is provided on the air duct housing 101, and the first drive motor 503 is fixed in the mounting groove 504. A first main gear 505 is coaxially connected to the output shaft of the first drive motor 503, and a first driven gear 506 is coaxially fixed to the first rotating shaft 501. The first main gear 505 is meshedly connected with the first driven gear 506. When working, the first drive motor 503 will drive the first main gear 505 to rotate, thereby driving the first driven gear 506 meshedly connected with the first main gear 505 to rotate, so that the first main gear 505, the air duct assembly 100 and the first drive motor 503 will rotate around the first driven gear 506, driving the head 1 to rotate. Among them, two groups of brackets 502 and first rotating shafts 501 are correspondingly provided, and are symmetrically distributed in the overall structure to provide stable support force, and the first driven gear 506 is only provided on one of the first rotating shafts 501. In this embodiment, by installing the first drive motor 503 on the air duct assembly 100, the space inside the head 1 can be fully saved. During operation, the air duct assembly 100 and the first drive motor 503 can rotate synchronously around the axis of the first rotating shaft 501 without setting a special fixed installation position for the first drive motor 503 outside the head 1 structure.

As shown in Figures 2 and 3, the fan assembly 200 in the head 1 includes an axial flow fan blade 201 and a second drive motor 202 for driving the axial flow fan blade 201 to rotate. The axial flow fan blade 201 and the second drive motor 202 are arranged in the air duct and located at the center of the air duct housing 101. The output shaft of the second drive motor 202 is coaxially connected to the axial flow fan blade 201. The second drive motor 202 is fixed to the air duct housing 101 through a plurality of support rods 203. The use of the axial flow fan blade 201 has the advantages of high wind speed and long air supply distance.

As shown in FIGS. 2 and 3 , the wet curtain assembly 300 of the machine head 1 includes a wet curtain 301 , a wet curtain bracket 302 and a downpipe 303 . The wet curtain 301 is fixed in the wet curtain bracket 302 , and the downpipe 303 is used to evenly distribute water to the wet curtain 301 . The wet curtain assembly 300 is a key component for cooling and humidifying in the machine head 1. Normally, the wet curtain assembly 300 includes a wet curtain 301 and a wet curtain bracket 302. The wet curtain 301 is fixed in the wet curtain bracket 302. In order to realize the introduction and collection of water flow, a downpipe 303 is arranged above the wet curtain bracket 302. If necessary, a water diversion box can be arranged to evenly divert the water flow to different positions of the wet curtain 301, so that different positions of the wet curtain 301 can fully absorb water and be fully soaked, thereby improving the cooling and humidification effect; in addition, a water tank 305 is arranged below the wet curtain bracket 302 for collecting the water flowing out of the wet curtain 301, and a downpipe 306 is arranged on the water tank 305 for discharging the water collected in the water tank 305.

As shown in Figures 2 and 3, the air inlet side of the wet curtain assembly 300 is provided with a water receiving net 304 arranged side by side with the wet curtain assembly 300, and the water receiving net 304 is used to drain the water flow thereon to the water tank 305. During use, the wet curtain assembly 300 and the air duct assembly 100 are relatively stationary. When the head 1 shakes its head up and down, the wet curtain 301 will also move with it. When the wet curtain 301 moves to an inclined position, the water in the wet curtain 301 will fall off the wet curtain 301 under the action of gravity and drip. The water receiving net 304 can drain the water dripping from the wet curtain 301 into the water tank 305 at the bottom of the wet curtain bracket 302, and flow away from the drain port 306 to prevent water from dripping onto the rear mesh cover 102 and affecting the user experience.

When the head 1 for the cooling fan is working, the second drive motor 202 drives the axial flow blades 201 to rotate, and the external airflow enters the head 1 from the air inlet under the action of the axial flow blades 201. The airflow passes through the water receiving network 304 and then passes through the wet curtain 301. The water on the wet curtain 301 quickly evaporates from liquid to gas to absorb the heat in the airflow to achieve cooling of the airflow. The airflow is then sent out from the relative air outlet, which can increase the evaporation amount, thereby enhancing the cooling and humidification effects of the cooling fan on the airflow.

It should be noted that other structures and operations of the head 1 for the cooling fan provided in the embodiment of the present invention are known to those skilled in the art and can refer to the structures of related devices in the prior art, and will not be described in detail here.

As shown in Figs. 4-9, an embodiment of the present invention further provides a cooling fan, which comprises a chassis 3, a fuselage 2 and a head 1 provided by the above embodiment of the present invention, which are connected in sequence, that is, the head 1 comprises an air duct assembly 100, a fan assembly 200 and a wet curtain assembly 300, wherein an air duct is formed in the air duct assembly 100, and the air inlet and the air outlet of the air duct are respectively arranged on opposite sides of the air duct assembly 100; the fan assembly 200 is used to drive the air flow to flow along the direction from the air inlet to the air outlet; the wet curtain assembly 300 is fixed on the air duct assembly 100 and is located on the air inlet side of the fan assembly 200, and when the head 1 shakes up and down, the wet curtain assembly 300 swings synchronously with the air duct assembly 100. Preferably, the wet curtain assembly 300 is arranged perpendicular to the air circulation direction, the air duct assembly 100 comprises an air duct housing 101, the air duct housing 101 defines an air duct inside, and the fan assembly 200 and the wet curtain assembly 300 are both fixed on the air duct housing 101. When the nose 1 includes the support base 400 , the body 2 is fixedly connected to the support base 400 .

The cooling fan provided in the embodiment of the present invention further includes a second rotating assembly 600, which is used to drive the body 2 to rotate relative to the chassis 3. Specifically, the second rotating assembly 600 includes a second rotating shaft 601 and a third driving motor 602, wherein the second rotating shaft 601 is fixedly connected to the body 2 and rotates with the chassis 3, and the third driving motor 602 is used to drive the body 2 to rotate around the axis of the second rotating shaft 601.

In the above embodiment, optionally, the third drive motor 602 is directly or indirectly fixed to the chassis 3, and the second rotating shaft 601 is directly driven to rotate by the third drive motor 602. At this time, the third drive motor 602 itself will not rotate around the axis of the second rotating shaft 601; optionally, the third drive motor 602 is directly or indirectly fixed to the fuselage 2, and the second rotating shaft 601 is directly driven to rotate by the third drive motor 602. At this time, the third drive motor 602 itself will rotate around the axis of the second rotating shaft 601 together with the fuselage 2. In the embodiment of the present invention, the second setting mode is preferably adopted. As shown in FIG6 , a body bracket 800 is fixedly connected to the body 2, a fixed base 900 is fixedly connected to the chassis 3, a third driving motor 602 is fixedly installed on the body bracket 800, a second main gear 603 is coaxially connected to the output shaft of the third driving motor 602, a second driven gear 604 meshing with the second main gear 603 is fixedly connected to the fixed base 900, a second rotating shaft 601 is fixed to the body bracket 800 and passes through the center of the second driven gear 604 for positioning, so that the second rotating shaft 601 and the second driven gear 604 bracket 502 rotate in coordination, and when working, the third driving motor 602 drives the second main gear 603 to rotate, thereby driving the second driven gear 604 meshing with the second main gear 603 to rotate, so that the second main gear 603, the body bracket 800 and the third driving motor 602 all rotate around the second driven gear 604, driving the body 2 to rotate. In this embodiment, by installing the third drive motor 602 on the body bracket 800, the space of the chassis 3 can be fully saved. During operation, the body bracket 800 and the third drive motor 602 can rotate synchronously around the axis of the second rotating shaft 601 without setting a special fixed installation position for the third drive motor 602.

It should be noted that, in the cooling fan provided in the above embodiment, the first rotating assembly 500 realizes the head 1 to shake in the up and down direction relative to the fuselage 2, and the second rotating assembly 600 realizes the rotation of the overall structure composed of the fuselage 2 and the head 1 in the horizontal direction relative to the chassis 3 or the bottom surface, and the rotation angle can be 360° or others. Preferably, in the case where the head 1 includes a first rotating shaft 501, the axial direction of the first rotating shaft 501 is perpendicular to the airflow direction in the air duct, and the axial direction of the first rotating shaft 501 is perpendicular to the axial direction of the second rotating shaft 601. Normally, the axial direction of the first rotating shaft 501 is horizontal, and the axial direction of the second rotating shaft 601 is vertical.

As shown in Figs. 7 and 8, a water tank assembly 700 is provided on the body 2 of the cooling fan, and the water tank assembly 700 includes a water tank 701, a pump 703, a pipeline 702, and a water level detector 704. The water tank 701 is used to store water and recover water flowing out of the wet curtain assembly 300, and the pump 703 is used to send the water in the water tank 701 to the wet curtain assembly 300 through the pipeline 702. A water tank installation position 705 is provided on the body 2, and the water tank installation position 705 is formed concavely on the body 2, and the water tank assembly 700 is installed therein, and the water tank 701 is matched with the water tank 701 installation by pulling, and the user can remove the water tank 701 from the water tank 701 installation by pulling to add water. The water tank 701 has a water pump installation position 706, the pump 703 and the pump bracket 707 are pre-installed and inserted into the water pump installation position 706, and the water level detector 704 is installed on the pump bracket 707 to detect the water level in the water tank 701. The pump 703 can deliver the water in the water tank 701 to the downpipe 303 of the machine head 1 through the pipeline 702.

As shown in FIG9 , a storage box 1000 is also provided on the body 2 . The user can put the power cord 1100 extending from the chassis 3 into the storage box 1000 when not in use, and then push the storage box 1000 into the storage box installation position on the body 2 , which is convenient to use.

As shown in Figures 4-9, hand grips 1200 are also provided on both sides of the body 2 to facilitate users to move the product. In addition, an electronic display component and/or a mechanical operating component are also provided on the head 1 or the body 2 of the cooling fan to control the operation of the product.

The working method of turning on the full function of the cold fan provided by the embodiment of the present invention is: take out the power cord from the storage box and connect it to the power supply. After turning on the blowing function, one or more of the humidification function, left and right shaking, and up and down shaking can be selected to realize the delivery of cool air at all angles. When the up and down shaking is adjusted to the highest position, it can humidify the air to avoid blowing directly on people, and users can also use it in winter.

Since the cooling fan disclosed in the embodiment of the present application includes the head 1 provided in the above embodiment, the cooling fan having the head 1 also has all the above technical effects, which will not be described in detail here. Other structures and operations of the cooling fan are known to ordinary technicians in the field and will not be described in detail here.

Some embodiments in this specification are described in a progressive or parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims (12)

1. A cooling fan, characterized in that it comprises a body (2) and a head (1), wherein the head (1) comprises: An air duct assembly (100) having an air duct formed therein, wherein an air inlet and an air outlet of the air duct are respectively arranged on two opposite sides of the air duct assembly (100); A fan assembly (200) is used to drive airflow to flow in a direction from the air inlet to the air outlet; A wet curtain assembly (300) is fixed on the air duct assembly (100) and is located on the air inlet side of the fan assembly (200); the wet curtain assembly (300) is perpendicular to the air flow direction; when the head of the machine moves up and down, the wet curtain assembly (300) and the air duct assembly (100) swing synchronously; A support base (400) and a first rotating assembly (500), wherein the first rotating assembly (500) is used to drive the air duct assembly (100) and the wet curtain assembly (300) to swing up and down relative to the support base (400), and the fuselage (2) is fixedly connected to the support base (400). 2. The cooling fan according to claim 1 is characterized in that the first rotating assembly (500) includes a first rotating shaft (501), a bracket (502) and a first driving motor (503), one end of the bracket (502) is fixed on the support seat (400), and the other end of the bracket (502) is sleeved on the first rotating shaft (501), and the first driving motor (503) is used to drive the air duct assembly (100) to rotate around the axis of the first rotating shaft (501). 3. The cooling fan according to claim 2 is characterized in that the first drive motor (503) is installed on the air duct assembly (100) or the bracket (502), and when the first drive motor (503) is installed on the air duct assembly (100), the air duct assembly (100) and the first drive motor (503) can rotate synchronously around the axis of the first rotating shaft (501). 4. The cooling fan according to claim 1, characterized in that the fan assembly (200) comprises an axial flow fan blade (201) and a second drive motor (202) for driving the axial flow fan blade (201) to rotate. 5. The cooling fan according to claim 1 is characterized in that the wet curtain assembly (300) comprises a wet curtain (301), a wet curtain bracket (302) and a downpipe (303), the wet curtain (301) is fixed in the wet curtain bracket (302), and the downpipe (303) is used to evenly distribute water to the wet curtain (301). 6. The cooling fan according to claim 1 is characterized in that a water receiving net (304) parallel to the wet curtain assembly (300) is provided on the air inlet side of the wet curtain assembly (300), and the wet curtain assembly (300) further includes a water trough (305) provided at the lower part of the wet curtain assembly (300), and the water receiving net (304) is used to guide the water flow thereon to the water trough (305). 7. The cooling fan according to claim 1 is characterized in that the air duct assembly (100) includes an air duct shell (101) and a rear mesh cover (102) and a front mesh cover (103) respectively connected to the air duct shell (101), the rear mesh cover (102) is arranged at the air inlet end of the air duct shell (101), and the front mesh cover (103) is arranged at the air outlet end of the air duct shell (101). 8. The cooling fan according to any one of claims 1 to 7, characterized in that it further comprises a chassis (3), wherein the chassis (3), the body (2) and the head (1) are connected in sequence. 9. The cooling fan according to claim 8, further comprising a second rotating assembly (600), wherein the second rotating assembly (600) is used to drive the body (2) to rotate relative to the chassis (3). 10. The cooling fan according to claim 9 is characterized in that the second rotating assembly (600) includes a second rotating shaft (601) and a third drive motor (602), the second rotating shaft (601) is fixedly connected to the fuselage (2) and rotatably cooperates with the chassis (3), and the third drive motor (602) is used to drive the fuselage (2) to rotate around the axis of the second rotating shaft (601). 11. The cooling fan according to claim 10 is characterized in that, when the head (1) includes a first rotating shaft (501), the axial direction of the first rotating shaft (501) is perpendicular to the airflow direction in the air duct, and the axial direction of the first rotating shaft (501) is perpendicular to the axial direction of the second rotating shaft (601). 12. The cooling fan according to claim 9 is characterized in that a water tank assembly (700) is provided on the fuselage (2), and the water tank assembly (700) comprises a water tank (701), a pump and a pipeline (702), the water tank (701) is used to store water and recover water flowing out of the wet curtain assembly (300), and the pump is used to deliver the water in the water tank (701) to the wet curtain assembly (300) through the pipeline (702).