CN114198831A

CN114198831A - Fan head and cooling fan

Info

Publication number: CN114198831A
Application number: CN202111526638.5A
Authority: CN
Inventors: 刘哲; 白建东; 陈晓冰; 赵文杰; 张逸鸿; 梁刚
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-03-18
Also published as: CN115419968A; CN115435421A; CN218379724U; CN218379725U; CN115419969A

Abstract

The invention relates to the technical field of fans, in particular to a fan head and a cooling fan, wherein the fan head comprises: the air inlet grille structure is hemispherical and comprises a plurality of arc-shaped ribs which are distributed in a radial shape; the air channel assembly comprises an air channel, a main motor arranged in the air channel and a fan blade connected with the main motor, wherein the fan blade comprises a plurality of blades; on a projection plane perpendicular to the axis of the main motor, the included angle between the tangent of the intersection point of the front edge of the blade and the arc-shaped rib at the front edge of the blade and the tangent at the arc-shaped rib is alpha, and the alpha is gradually reduced from the root to the end of the blade.

Description

Fan head and cooling fan

Technical Field

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

Background

The operating principle of the cooling fan is that the wet curtain is wetted by water, air is obtained through the wet curtain, and then the principle that water on the wet curtain evaporates to absorb heat is utilized, so that the purpose of reducing the temperature of the air is achieved, and the purpose of reducing the indoor temperature is achieved.

In the prior art, the axial flow fan blade has the defects that air flow is not uniform when air enters, the uneven air flow collides with each other to generate wind resistance when passing through the fan blade, the air quantity, the air speed and other properties are reduced, and because the air flow in the fan passes through the fan slowly, the wet curtain water cooling evaporation capacity is lower, and the cooling effect is not obvious.

Disclosure of Invention

Therefore, the invention aims to overcome the defects of low air volume and low air speed of the cooling fan in the prior art, and provides the fan head and the cooling fan with good air volume and air speed performance.

In order to solve the above technical problem, the present invention provides a fan head, including: the air inlet grille structure is hemispherical and comprises a plurality of arc-shaped ribs which are distributed in a radial shape; the air channel assembly comprises an air channel, a main motor arranged in the air channel and a fan blade connected with the main motor, wherein the fan blade comprises a plurality of blades; on a projection plane perpendicular to the axis of the main motor, the included angle between the tangent of the intersection point of the front edge of the blade and the arc-shaped rib at the front edge of the blade and the tangent at the arc-shaped rib is alpha, and the alpha is gradually reduced from the root to the end of the blade.

Optionally, on a projection plane perpendicular to the motor shaft of the main motor, an included angle between a tangent of a crossing point of the trailing edge of the blade and the arc-shaped rib at the trailing edge of the blade and a tangent at the arc-shaped rib is β, and β gradually increases from the root to the tip of the blade.

Optionally, the minimum value of α is 90 °, and the maximum value of α is 115 °;

and/or the minimum value of beta is 65 deg. and the maximum value of beta is 90 deg..

Optionally, the difference value of alpha between two adjacent arc-shaped ribs is A, and A is more than or equal to 3 degrees and less than or equal to 8 degrees;

and/or the beta difference value of two adjacent arc-shaped ribs is B, wherein B is more than or equal to 3 degrees and less than or equal to 8 degrees.

Optionally, a is 5 °, and/or, B is 5 °.

Optionally, the fan head further comprises a support assembly, the support assembly comprising: the supporting bracket comprises two opposite rotation installation parts, and the air duct can be rotatably arranged between the rotation installation parts.

Optionally, the fan head still includes the drive assembly of shaking the head, the drive assembly of shaking the head with the wind channel links to each other, can drive the wind channel is around two rotatory installation department's connecting axis swings.

Optionally, one of them rotatory installation department fixedly connected with rotation axis, the drive assembly that shakes the head includes: the oscillating motor is arranged in the air duct and comprises a motor body and an output shaft, the output shaft is connected with the rotating shaft, and the motor body is fixedly connected with the air duct.

Optionally, the driving assembly that shakes head still includes the motor sheath, the motor sheath encircles motor body and part outside the rotation axis, the motor sheath with motor body reaches wind channel fixed connection.

Optionally, wherein another rotatory installation department fixedly connected with rotatory sheath, rotatory sheath passes the wind channel, the wind channel can be relative rotatory sheath rotates, the fan head still includes wet curtain subassembly, wet curtain subassembly sets up air inlet grille structure with between the wind channel subassembly, for the water pipe that wet curtain subassembly supplied water passes rotatory sheath.

Optionally, the support bracket is provided with a fixing groove suitable for the water pipe to be embedded.

Optionally, the wet curtain assembly comprises: one end of the wet curtain support is fixedly connected with the rotary sheath, the other end of the wet curtain support is fixedly connected with the supporting support, a drainage structure is arranged at the bottom of the wet curtain support, the bottom of the drainage structure is fixedly arranged at the bottom of the supporting support, and a through groove suitable for the drainage structure to penetrate through is formed in the air inlet grille structure; and the wet curtain is arranged on the wet curtain bracket.

Optionally, the wet curtain bracket is obliquely arranged between the air inlet grille structure and the air duct assembly.

Optionally, the fan head further comprises:

the upper shell is fixedly connected to the upper side of the air duct;

the lower shell is fixedly connected to the lower side of the air duct;

and the air guide wheel is fixedly connected to one side of the air duct far away from the air inlet grating structure.

Optionally, a motor mounting seat is arranged in the air duct, the main motor is fixedly arranged on the motor mounting seat, a motor shaft of the main motor penetrates through the motor mounting seat to be connected with the fan blade, the main motor and the wet curtain component are arranged on the same side of the motor mounting seat, the fan blade is arranged on the other side of the motor mounting seat, and a motor cover is further arranged on the main motor.

The invention also provides a cooling fan which comprises the fan head.

The technical scheme of the invention has the following advantages:

according to the fan head provided by the invention, the air inlet grille structure is hemispherical, the air inlet area is increased, and the included angle between the tangent of the intersection point of the front edge of the blade and the arc-shaped rib at the front edge of the blade and the tangent at the arc-shaped rib is alpha on the projection plane vertical to the axis of the main motor, so that alpha is gradually reduced from the root to the end of the blade, the air inlet efficiency is better, and the air volume and the air speed performance are improved, therefore, the air volume and the air speed performance are better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a fan head provided in embodiment 1 of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is an exploded view of a duct assembly of a fan head provided in embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of an air duct assembly of a fan head provided in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a wet curtain assembly of a fan head provided in embodiment 1 of the present invention;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic illustration of the wet curtain assembly of FIG. 5 mounted on a support bracket;

FIG. 8 is a schematic view of the air intake grille structure of FIG. 1;

FIG. 9 is a sectional view of the internal structure of FIG. 1;

FIG. 10 is a side cross-sectional view of FIG. 1;

fig. 11 is a schematic structural view of a fan head provided in embodiment 1 of the present invention at another angle;

FIG. 12 is an enlarged view of a portion of FIG. 11;

FIG. 13 is a projection view of the air inlet grille structure and fan blades on a plane of projection perpendicular to the axis of the main motor;

FIG. 14 is an enlarged view at C of FIG. 13;

fig. 15 is an enlarged view of fig. 13 at D.

Description of reference numerals:

1. an air inlet grille structure; 101. arc-shaped ribs; 102. a rear housing; 1021. a disc; 1022. a circular connecting frame; 1023. a through groove; 103. a rear net; 1031. a first semi-circular support; 1032. a second semi-circular support; 2. an air duct; 201. a motor mounting seat; 3. a main motor; 4. a fan blade; 401. a blade; 4011. a leading edge; 4012. a trailing edge; 5. a support bracket; 501. a rotation mounting part; 6. a rotating shaft; 7. a head shaking motor; 701. a motor body; 702. an output shaft; 8. a motor sheath; 9. rotating the sheath; 10. a wet curtain assembly; 1001. a wet curtain support; 1002. wet curtain; 1003. a launching structure; 1004. a wet curtain baffle plate; 11. a water pipe; 12. an upper shell; 13. a lower case; 14. an air guide wheel; 15. a motor cover; 16. a knob.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

To this end, the present embodiment provides a fan head.

In one embodiment, as shown in fig. 1 to 15, the fan head comprises a grille structure 1, a duct assembly. The air inlet grille structure 1 is hemispherical, and the air inlet grille structure 1 comprises a plurality of arc-shaped ribs 101 which are distributed in a radial shape; the air duct assembly comprises an air duct 2, a main motor 3 arranged in the air duct 2 and fan blades 4 connected with the main motor 3, wherein the fan blades 4 comprise a hub arranged on a motor shaft of the main motor 3 and a plurality of blades 401 arranged on the hub; as shown in fig. 13 to 15, on a projection plane perpendicular to the axis of the main motor 3, an intersection point of the leading edge 4011 of the blade 401 and the arc rib 101 has an angle α between a tangent at the leading edge 4011 of the blade 401 and a tangent at the arc rib 101, which gradually decreases from the root to the tip of the blade 401. It should be noted that the front edge 4011 of the blade 401 refers to a side that is first contacted with the airflow when the fan blade 4 rotates, and the rear edge 4012 of the blade 401 refers to a side that is later contacted with the airflow when the fan blade 4 rotates.

In this embodiment, because the air inlet grille structure 1 is hemispherical, the air inlet area is increased, and the included angle between the tangent of the intersection point of the front edge 4011 of the blade 401 and the arc-shaped rib 101 at the front edge 4011 of the blade 401 and the tangent of the arc-shaped rib 101 is α on the projection plane perpendicular to the axis of the main motor 3, from the root to the end of the blade 401, α is gradually reduced, so that the air inlet efficiency is better, and the air volume and the air speed performance are improved, and therefore, the air volume and the air speed performance are better.

Specifically, in one embodiment, the air intake grille structure 1 includes a rear casing 102 and a rear net 103, as shown in fig. 2, a lower half part grille is disposed on the rear casing 102, the rear net 103 includes an upper half part grille, and the rear casing 102 and the rear net 103 can be mounted on the rear casing 102 to form a hemisphere shape by connecting the rear net 103 with screws. The rear shell 102 comprises a disk 1021 at one end and a circular connecting frame 1022 at the other end, one end of the arc-shaped rib 101 on the rear shell 102 is connected with the disk 1021, the other end is connected with the circular connecting frame 1022, and the circular connecting frame 1022 can be fixedly connected with the air duct 2; the rear net 103 comprises a first semi-circular holder 1031 at one end and a second semi-circular holder 1032 at the other end, the arc-shaped ribs 101 on the rear net 103 being connected at one end to the first semi-circular holder 1031 and at the other end to the second semi-circular holder 1032.

On the basis of the above-described embodiment, in a preferred embodiment, on a projection plane perpendicular to the motor axis of the main motor 3, an angle between a tangent to the intersection of the trailing edge 4012 of the blade 401 and the arc rib 101 at the trailing edge 4012 of the blade 401 and a tangent to the arc rib 101 is β, and β gradually increases from the root to the tip of the blade 401. In this embodiment, an included angle β between a tangent line at the trailing edge 4012 of the blade 401 and a tangent line at the arc-shaped rib 101 at the intersection point of the trailing edge 4012 of the blade 401 and the arc-shaped rib 101 is set to be β, and β gradually increases from the root to the tip of the blade 401, thereby further improving the air volume and wind speed performance.

On the basis of the above embodiments, in a preferred embodiment, α has a minimum value of 90 °, i.e. α min of 90 °, and a maximum value of 115 °, i.e. α max of 115 °; and/or the minimum value of β is 65 °, i.e. β min is 65 °, and the maximum value of β is 90 °, i.e. β max is 90 °. In a preferred embodiment, α has a minimum value of 90 °, α has a maximum value of 115 °, β has a minimum value of 65 °, and β has a maximum value of 90 °. In an alternative embodiment, only the minimum value of α is 90 °, the maximum value of α is 115 °, and the minimum value of β is less than 65 °, and the maximum value is greater than 90 °. In another alternative embodiment, only the minimum value of β is 65 °, the maximum value of β is 90 °, and the minimum value of α is less than 90 °, and the maximum value of α is greater than 115 °.

On the basis of the above embodiment, in a preferred embodiment, the difference value of alpha of two adjacent arc-shaped ribs 101 is A, and A is more than or equal to 3 degrees and less than or equal to 8 degrees; and/or the beta difference value of two adjacent arc-shaped ribs 101 is B, wherein B is more than or equal to 3 degrees and less than or equal to 8 degrees. In a preferred embodiment, 3 DEG.ltoreq.A.ltoreq.8 DEG.ltoreq.B.ltoreq.8 DEG.ltoreq.3 DEG.ltoreq.B.ltoreq.8 DEG.in this embodiment, alpha and beta vary regularly from the root to the end of the blade 401, alpha starting from a maximum of 115 DEG and decreasing progressively in a range of 3 DEG to 8 DEG to the end of the blade 401, alpha reaching a minimum of 90 DEG and beta starting from a minimum of 65 DEG and increasing progressively in a range of 3 DEG to 8 DEG to the end of the blade 401 and beta reaching a maximum of 90 deg. In an alternative embodiment, only 3 ≦ A ≦ 8 is satisfied. In another alternative embodiment, only 3 ≦ B ≦ 8 is satisfied.

In a preferred embodiment, a is 5 ° and/or B is 5 ° on the basis of the above-described embodiments. In a preferred embodiment, a is 5 ° and B is 5 °, in which embodiment, in connection with the figure, on a plane of projection perpendicular to the axis of the main motor 3, the leading edge 4011 of one blade 401 forms six coincident points with the six arc-shaped ribs 101 of the air intake grille structure 1, a starting from the maximum 115 ° and decreasing in magnitude by 5 ° from the root to the tip of the blade 401, a reaching a minimum of 90 ° to the tip of the blade 401, β starting from the minimum 65 ° and increasing in magnitude by 5 ° to the tip of the blade 401, β reaching a maximum of 90 °.

On the basis of the above embodiment, in a preferred embodiment, the fan head further comprises a support assembly, the support assembly comprises a support bracket 5, the support bracket 5 comprises two opposite rotation mounting parts 501, and the air duct 2 is rotatably arranged between the rotation mounting parts 501. In this embodiment, since the air duct 2 is rotatably disposed between the two rotary mounting portions 501, the angle of the air duct 2 can be adjusted, thereby satisfying the air outlet requirements at different angles.

In addition to the above embodiments, in a preferred embodiment, the fan head further includes a moving head driving assembly, and the moving head driving assembly is connected to the air duct 2 and can drive the air duct 2 to swing around the connecting axis of the two rotation mounting portions 501. In the embodiment, the fan head can swing, the air supply range can be enlarged, and the experience of a user is improved.

On the basis of the above embodiment, in a preferred embodiment, one of the rotary mounting portions 501 is fixedly connected with a rotary shaft 6, the oscillating driving assembly includes an oscillating motor 7, the oscillating motor 7 is disposed in the air duct 2, the oscillating motor 7 includes a motor body 701 and an output shaft 702, the output shaft 702 is connected with the rotary shaft 6, and the motor body 701 is fixedly connected with the air duct 2. In this embodiment, when the oscillating motor 7 works, the rotating shaft 6 is driven, and since the rotating shaft 6 is fixedly connected to the rotary mounting part 501 of the supporting bracket 5 and the supporting bracket 5 is fixed, the motor body 701 is forced to drive the air duct 2 to swing around the axis of the rotating shaft 6, thereby realizing the oscillating function. The embodiment fixes the oscillating motor 7 at the inner side of the air duct 2, and has compact structure and beautiful appearance. In other alternative embodiments, the oscillating motor 7 may be fixed to the support frame 5, such that the output shaft 702 of the oscillating motor 7 is fixedly connected to the air duct 2.

On the basis of the above embodiments, in a preferred embodiment, the oscillating head driving assembly further includes a motor sheath 8, the motor sheath 8 surrounds the motor body 701 and a part of the rotating shaft 6, and the motor sheath 8 is fixedly connected with the motor body 701 and the air duct 2. In this embodiment, the motor sheath 8 can protect the oscillating motor 7 and is at the same time convenient for being fixedly connected with the air duct 2.

On the basis of the above embodiments, in a preferred embodiment, the other rotary mounting portion 501 is fixedly connected with a rotary sheath 9, the rotary sheath 9 passes through the air duct 2, the air duct 2 can rotate relative to the rotary sheath 9, the fan head further includes a wet curtain assembly 10, the wet curtain assembly 10 is disposed between the air inlet grille structure 1 and the air duct assembly, and a water pipe 11 for supplying water to the wet curtain assembly 10 passes through the rotary sheath 9. In this embodiment, through setting up rotatory sheath 9, and pass rotatory sheath 9 with water pipe 11, when the fan head shakes the head, can not cause to drag water pipe 11, protection water pipe 11 does not receive the damage, and through set up wet curtain subassembly 10 between air inlet grille structure 1 and wind channel subassembly, with the globular of air inlet grille structure 1 and the linear cooperation of arc rib 101, because amount of wind speed performance increases, can ensure the water-cooling evaporation capacity of wet curtain subassembly 10, the cooling effect is better.

In addition to the above embodiments, in a preferred embodiment, the support bracket 5 is provided with a fixing groove adapted to be inserted by the water pipe 11. Specifically, the fixed slot is established on the outer wall of support bracket 5, can fix water pipe 11 and hide, and the outward appearance is pleasing to the eye.

On the basis of the above embodiment, in a preferred embodiment, the wet curtain assembly 10 includes a wet curtain bracket 1001 and a wet curtain 1002, wherein one end of the wet curtain bracket 1001 is fixedly connected with the rotating sheath 9, the other end of the wet curtain bracket is fixedly connected with the supporting bracket 5, the bottom of the wet curtain bracket 1001 is provided with a drainage structure 1003, the bottom of the drainage structure 1003 is fixedly arranged at the bottom of the supporting bracket 5, and the air inlet grille structure 1 is provided with a through groove 1023 for the drainage structure 1003 to pass through; the wet curtain 1002 is provided on the wet curtain bracket 1001. In this embodiment, the drainage structure 1003 can collect the water flowing out from the bottom of the wet curtain 1002, and at the same time, can fix the wet curtain bracket 1001 on the support bracket 5, and by providing the through groove 1023 on the air inlet grille structure 1, when the air inlet grille structure 1 shakes the head along with the air duct 2, it will not interfere with the wet curtain assembly 10.

As shown in fig. 5 and 6, the wet curtain bracket 1001 is provided with a wet curtain blocking plate 1004, which can limit the wet curtain 1002 in the wet curtain bracket 1001.

With further reference to fig. 1 and 8, a through slot 1023 is embodied on the rear shell 102.

On the basis of the above embodiments, in a preferred embodiment, the wet curtain bracket 1001 is obliquely arranged between the air intake grille structure 1 and the air duct assembly. In this embodiment, through setting up wet curtain support 1001 slope between air inlet grille structure 1 and wind channel subassembly, can avoid wet curtain support 1001 and the inside mechanism of moving together of fan head when shaking the head to take place to interfere, can increase wet curtain 1002's area simultaneously, improve the cooling effect.

In addition to the above embodiments, in a preferred embodiment, the fan head further includes: an upper casing 12 fixedly connected to an upper side of the air duct 2; a lower case 13 fixedly connected to a lower side of the air duct 2; and the air guide wheel 14 is fixedly connected to one side of the air duct 2 far away from the air inlet grille structure 1. In this embodiment, the upper casing 12 and the lower casing 13 enclose the wind channel 2 therein, so that the fan head has an attractive appearance, and the wind guide wheel 14 can guide the wind straight, thereby preventing external objects such as fingers from extending into the wind channel 2 to damage the operating fan blades 4.

On the basis of the above embodiments, in a preferred embodiment, a motor mounting seat 201 is arranged in the air duct 2, the main motor 3 is fixedly arranged on the motor mounting seat 201, a motor shaft of the main motor 3 penetrates through the motor mounting seat 201 to be connected with the fan blades 4, the main motor 3 and the wet curtain assembly 10 are arranged on the same side of the motor mounting seat 201, the fan blades 4 are arranged on the other side of the motor mounting seat 201, and a motor cover 15 is further arranged on the main motor 3. In this embodiment, the provision of the motor cover 15 can prevent water from entering the main motor 3.

As shown in fig. 3 and 4, a knob 16 is disposed at one end of a motor shaft of the main motor 3, and the fan blades 4 can be fixedly connected to the motor shaft by the knob 16 to prevent the fan blades 4 from coming off.

Example 2

The embodiment provides a cooling fan, including the fan head that provides in the above-mentioned embodiment.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A fan head, comprising:

the air inlet grille structure (1) is hemispherical, and the air inlet grille structure (1) comprises a plurality of arc-shaped ribs (101) which are distributed in a radial shape;

the air channel assembly comprises an air channel (2), a main motor (3) arranged in the air channel (2) and fan blades (4) connected with the main motor (3), wherein the fan blades (4) comprise a plurality of blades (401);

on a projection plane perpendicular to the axis of the main motor (3), the included angle between the tangent of the intersection point of the front edge (4011) of the blade (401) and the arc-shaped rib (101) at the front edge (4011) of the blade (401) and the tangent at the arc-shaped rib (101) is alpha, and alpha is gradually reduced from the root to the end of the blade (401).

2. The fan head according to claim 1, characterized in that on a projection plane perpendicular to the motor axis of the main motor (3), an angle β between a tangent to the intersection of the trailing edge (4012) of the blade (401) with the arc rib (101) at the trailing edge (4012) of the blade (401) and a tangent to the arc rib (101) is an angle β, β gradually increasing from the root to the tip of the blade (401).

3. The fan head according to claim 2, characterized in that the minimum value of a is 90 °, the maximum value of a is 115 °;

4. The fan head according to claim 3, characterised in that the difference α between two adjacent arc ribs (101) is A, 3 ° ≦ A ≦ 8 °;

and/or the beta difference value of two adjacent arc ribs (101) is B, wherein B is more than or equal to 3 degrees and less than or equal to 8 degrees.

5. The fan head according to claim 4, characterized in that A is 5 ° and/or B is 5 °.

6. The fan head of claim 1 further comprising a support assembly, the support assembly comprising:

the supporting bracket (5) comprises two opposite rotary mounting parts (501), and the air duct (2) can be rotatably arranged between the rotary mounting parts (501).

7. The fan head according to claim 6, characterized in that the fan head further comprises a moving head driving assembly, wherein the moving head driving assembly is connected with the air duct (2) and can drive the air duct (2) to swing around the connecting axis of the two rotary mounting parts (501).

8. The fan head according to claim 7, characterized in that one of said rotary mounting parts (501) is fixedly connected with a rotary shaft (6), said oscillating drive assembly comprising:

head shaking motor (7), the setting is in wind channel (2), head shaking motor (7) include motor body (701) and output shaft (702), output shaft (702) with rotation axis (6) link to each other, motor body (701) with wind channel (2) fixed connection.

9. The fan head according to claim 8 characterized in that said oscillating head driving assembly further comprises a motor sheath (8), said motor sheath (8) surrounds said motor body (701) and a portion of said rotating shaft (6), said motor sheath (8) is fixedly connected with said motor body (701) and said air duct (2).

10. The fan head according to claim 6, wherein a rotating sheath (9) is fixedly connected to the other rotating mounting portion (501), the rotating sheath (9) passes through the air duct (2), the air duct (2) can rotate relative to the rotating sheath (9), the fan head further comprises a wet curtain assembly (10), the wet curtain assembly (10) is arranged between the air inlet grille structure (1) and the air duct assembly, and a water pipe (11) for supplying water to the wet curtain assembly (10) passes through the rotating sheath (9).

11. The fan head according to claim 10, characterised in that the support bracket (5) is provided with fixing slots adapted for the insertion of the water pipes (11).

12. The fan head according to claim 10, wherein the wet curtain assembly (10) comprises:

one end of the wet curtain support (1001) is fixedly connected with the rotating sheath (9), the other end of the wet curtain support is fixedly connected with the supporting support (5), a drainage structure (1003) is arranged at the bottom of the wet curtain support (1001), the bottom of the drainage structure (1003) is fixedly arranged at the bottom of the supporting support (5), and a through groove (1023) suitable for the drainage structure (1003) to penetrate through is formed in the air inlet grille structure (1);

a wet curtain (1002) disposed on the wet curtain bracket (1001).

13. The fan head according to claim 12, characterized in that the wet curtain bracket (1001) is obliquely arranged between the air intake grille structure (1) and the air duct assembly.

14. The fan head according to any of claims 1-13, further comprising:

the upper shell (12) is fixedly connected to the upper side of the air duct (2);

the lower shell (13) is fixedly connected to the lower side of the air duct (2);

and the air guide wheel (14) is fixedly connected to one side of the air duct (2) far away from the air inlet grille structure (1).

15. The fan head according to any one of claims 10 to 13, wherein a motor mounting seat (201) is provided in the air duct (2), the main motor (3) is fixedly provided on the motor mounting seat (201), a motor shaft of the main motor (3) passes through the motor mounting seat (201) to be connected with the fan blade (4), the main motor (3) and the wet curtain component (10) are provided on the same side of the motor mounting seat (201), the fan blade (4) is provided on the other side of the motor mounting seat (201), and a motor cover (15) is further provided on the main motor (3).

16. A cooling fan, characterized by comprising a fan head according to any one of claims 1 to 15.