Evaporative cooling fan

Abstract

The present invention relates to the technical field of household appliances, and in particular to an evaporative cooling fan, comprising: a housing having an opening provided in the housing, the housing having a wet curtain installed in the housing; a water-dividing structure provided above the housing; a water-receiving device provided movably on the inner wall of the housing, the water-receiving device including a water-receiving chamber with an opening facing the water-dividing structure, the water-receiving chamber having a water-receiving state directly below the water-dividing structure under the action of an external force when the wet curtain is not installed in the housing; and a non-water-receiving state obliquely below the water-dividing structure under the action of an external force when the wet curtain is installed in the housing. By installing the wet curtain and the water-receiving device in the housing, when the user does not need wind at a lower temperature or forgets to install the wet curtain, the water-receiving chamber can be provided directly below the water-dividing structure under the action of an external force, and the water output from the water-dividing structure is received and stored in the water-receiving chamber, so as to prevent water from splashing inside the evaporative cooling fan when the wet curtain is not installed, and avoid water splashing to electrical components to generate safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to an evaporative cooling fan. Background Art

[0002] The working principle of the evaporative cooling fan is to install a wet curtain at the air inlet of the evaporative cooling fan, and set a water distribution structure above the wet curtain. The bottom of the water distribution structure has a water outlet hole, and water is transported to the wet curtain from the water outlet hole. The wet curtain can absorb water and increase the contact area between water and air, thereby increasing the evaporation of water on the wet curtain and reducing the temperature of the wind entering from the air inlet, so as to achieve the purpose of transporting relatively low temperature cold air to the surrounding environment.

[0003] However, since the wet curtain is an additional functional component, when the user disassembles it for maintenance, even if the user forgets to install the wet curtain, or the user does not need the cold air with a lower temperature and does not want to install the wet curtain, the fan of the evaporative cooling fan can still work and send air to the surrounding environment. However, after the wet curtain is removed, the water distribution structure still supplies water to the location of the wet curtain, resulting in no parts in the evaporative cooling fan that can absorb water. The dripping water splashes in the evaporative cooling fan and splashes onto other electrical components, creating electrical safety hazards. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the evaporative cooling fan in the prior art that there is an electrical safety hazard when the wet curtain is not installed, thereby providing an evaporative cooling fan that can still avoid electrical safety hazards when the wet curtain is not installed.

[0005] An evaporative cooling fan, comprising:

[0006] A housing having an opening for accommodating a cavity, wherein the accommodating cavity is suitable for assembling a wet curtain;

[0007] A water distribution structure is arranged above the accommodating cavity;

[0008] A water receiving device is movably arranged on the inner wall of the accommodating chamber, and the water receiving device includes a water receiving chamber with an opening toward the water diversion structure. The water receiving chamber has a water receiving state directly below the water diversion structure under the action of external force when the wet curtain is not installed in the accommodating chamber; and a non-water receiving state obliquely below the water diversion structure under the action of external force when the wet curtain is installed in the accommodating chamber.

[0009] The water receiving device is rotatably connected to the inner wall.

[0010] Also includes:

[0011] A power device is fixed on the shell, and the power device is connected to the water receiving device and is suitable for driving the water receiving device to rotate.

[0012] The water receiving device is provided with a matching space, and the matching space is connected to the output shaft of the power device.

[0013] It also includes: a sensing device, which is arranged on the accommodating cavity and is suitable for sensing whether the wet curtain is installed on the accommodating cavity.

[0014] The sensing device is a sensing switch, which is suitable for pressing the sensing switch when the wet curtain is assembled into the accommodating cavity, and the sensing switch is disconnected.

[0015] Also includes:

[0016] The controller is connected to the sensing device and the power device, and is adapted to control the power device to drive the water receiving device to rotate to the water receiving state when the sensing device senses that the wet curtain is not mounted on the accommodating chamber.

[0017] The two ends of the water receiving device are rotatably connected to the inner wall.

[0018] At least one positioning hole or rotating shaft is respectively provided on both sides of the inner wall, and a rotating shaft or positioning hole which is matched and connected with the positioning hole or rotating shaft is provided on the water receiving device.

[0019] The rotating shaft on at least one side is an elastic structure.

[0020] It also includes a limiting structure, which is arranged on the shell and / or the accommodating cavity and is suitable for limiting the rotation angle of the water receiving device.

[0021] The bottom of the water receiving device is provided with a discharge port, which is suitable for discharging the water of the water receiving device out of the shell.

[0022] Also includes:

[0023] A drainage structure is communicated with the discharge port and is suitable for draining water to the outside of the shell.

[0024] The drainage structure is a drainage groove arranged on the shell.

[0025] It also includes: a dustproof net, which is fixedly connected to the shell and is located at the opening of the accommodating cavity close to the wet curtain.

[0026] The technical solution of the present invention has the following advantages:

[0027] 1. The evaporative cooling fan provided by the present invention provides a accommodating chamber on a shell, in which a wet curtain and a water collecting device are installed. When a user needs wind at a lower temperature and the wet curtain is working, the wet curtain is located directly below the water diversion structure, and the water collecting device is located obliquely below the water diversion structure under the action of external force, and the water collecting device and the wet curtain will not interfere with each other, and the wet curtain cools down the air before supplying it to the user. When the user does not need wind at a lower temperature or forgets to install the wet curtain, the water collecting chamber of the water collecting device can be located directly below the water diversion structure under the action of external force, so that water output from the water diversion structure is received and stored in the water collecting chamber, thereby preventing water from splashing inside the evaporative cooling fan when the wet curtain is not installed, thereby avoiding safety hazards when water splashes onto electrical components. At the same time, the problem of loud noise caused by water splashing inside the evaporative cooling fan is prevented, thereby improving user experience.

[0028] 2. The evaporative cooling fan provided by the present invention has a power device fixedly connected to the shell, and the power device drives the water receiving device to rotate, so that when external force is required to move the water receiving device, the user does not have to operate manually, thereby providing a better user experience.

[0029] 3. The evaporative cooling fan provided by the present invention is easy to assemble with the output shaft of the power device by providing a matching space on the water receiving device.

[0030] 4. The evaporative cooling fan provided by the present invention can automatically sense whether the wet curtain is installed on the accommodating chamber by arranging a sensing device on the accommodating chamber, thereby improving the user experience.

[0031] 5. The evaporative cooling fan provided by the present invention, by providing a controller connected to the sensing device and the power device, can automatically control the power device to drive the water receiving device to rotate to the water receiving state when the sensing device senses that the wet curtain is not installed on the accommodating chamber. That is, the sensing action of whether the wet curtain is installed on the accommodating chamber and the rotation action of the water receiving device can all be realized automatically. The user does not need any manual operation, thus achieving full automation and greatly improving the user experience.

[0032] 6. The evaporative cooling fan provided by the present invention makes the rotation of the water receiving device more stable and improves the stability of the movement by rotatably connecting both ends of the water receiving device to the inner wall.

[0033] 7. The evaporative cooling fan provided by the present invention can realize that the water receiving device can rotate relative to the accommodating chamber by providing matching positioning holes and rotating shafts on both sides of the inner wall of the accommodating chamber and on the water receiving device, and the structure is relatively simple.

[0034] 8. The evaporative cooling fan provided by the present invention has a rotating shaft on at least one side configured as an elastic structure, so that the rotating shaft of the water receiving device can be elastically deformed during installation, thereby facilitating assembly.

[0035] 9. The evaporative cooling fan provided by the present invention can limit the rotation angle of the water receiving device by arranging a limiting structure on the shell, thereby preventing the water receiving device from excessively rotating and affecting the water receiving effect.

[0036] 10. The evaporative cooling fan provided by the present invention can discharge the water in the water receiving chamber out of the shell by arranging a discharge port at the bottom of the water receiving device, thereby preventing the water from overflowing into the shell when the water receiving chamber is full, which poses a safety hazard.

[0037] 11. The evaporative cooling fan provided by the present invention, by providing a drainage structure, can have a better drainage effect on the water when transferring the water in the water receiving device to the outside of the shell, thereby improving the transmission effect.

[0038] 12. The evaporative cooling fan provided by the present invention has a simpler structure and occupies less space by configuring the drainage structure as a drainage groove provided on the shell, thereby reducing the overall volume of the evaporative cooling fan.

[0039] 13. The evaporative cooling fan provided by the present invention can filter the air entering the wet curtain and improve the cleanliness of the air outlet by fixing the dustproof net on the shell and locating the dustproof net at the opening of the accommodating cavity close to the wet curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 An exploded view of a part of the structure of the evaporative cooling fan of the present invention;

[0042] Figure 2 This is a diagram showing the assembly of a portion of the evaporative cooling fan of the present invention;

[0043] Figure 3 An exploded view of a part of the structure of the evaporative cooling fan of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the water receiving device of the present invention;

[0045] Figure 5 for Figure 4 A magnified view of part A;

[0046] Figure 6 It is a structural schematic diagram of the housing of the present invention;

[0047] Figure 7A cross-sectional view of a partial structure of an evaporative cooling fan of the present invention equipped with a wet curtain;

[0048] Figure 8 It is a cross-sectional view of a part of the structure of the evaporative cooling fan of the present invention that is not equipped with a wet curtain;

[0049] Description of reference numerals:

[0050] 1-shell; 2-accommodating chamber; 3-water distribution structure; 4-water receiving device; 5-motor; 6-matching hole; 7-sensing switch; 8-positioning hole; 9-rotating shaft; 10-limiting block; 11-discharge port; 12-drainage groove; 13-fan; 14-dustproof net; 15-wet curtain; 16-water receiving chamber; 17-top cover. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] like Figure 1 - Figure 8 As shown, this embodiment provides an evaporative cooling fan, including: a shell 1, a water distribution structure 3 and a water receiving device 4.

[0054] An open accommodating chamber 2 is provided on the shell 1, and the accommodating chamber 2 is suitable for installing a wet curtain 15; a water diversion structure 3 is provided above the accommodating chamber 2; a water receiving device 4 is movably provided on the inner wall of the accommodating chamber 2, and the water receiving device 4 includes a water receiving chamber 16 with an opening toward the water diversion structure 3, and the water receiving chamber 16 has a water receiving state directly below the water diversion structure 3 under the action of external force when the wet curtain 15 is not installed in the accommodating chamber 2; and a non-water receiving state obliquely below the water diversion structure 3 under the action of external force when the wet curtain 15 is installed in the accommodating chamber 2.

[0055] By arranging a accommodating chamber 2 on the shell 1, a wet curtain 15 and a water receiving device 4 are installed in the accommodating chamber 2. When the user needs wind at a lower temperature and the wet curtain 15 is working, the wet curtain 15 is located directly below the water diversion structure 3, and the water receiving device 4 is located obliquely below the water diversion structure 3 under the action of external force. The water receiving device 4 and the wet curtain 15 will not interfere with each other. The wet curtain 15 cools the air before supplying it to the user. When the user does not need wind at a lower temperature or forgets to install the wet curtain 15, the water receiving chamber 16 of the water receiving device 4 can be located directly below the water diversion structure 3 under the action of external force, and the water output of the water diversion structure 3 is received and stored in the water receiving chamber 16, so as to prevent water from splashing inside the evaporative cooling fan when the wet curtain 15 is not installed, thereby avoiding safety hazards when water splashes onto electrical components. At the same time, it prevents the problem of loud noise caused by water splashing inside the evaporative cooling fan, thereby improving user experience.

[0056] Specifically, the water receiving device 4 in this embodiment is rotatably connected to the inner wall. As a convertible embodiment, it is also possible that the water receiving device 4 is slidably connected to the inner wall, such as the evaporative cooling fan further includes an elastic member, one end of the elastic member is arranged on the housing 1, and the other end is connected to the side of the water receiving device 4 away from the wet curtain 15. When the elastic member is in a non-compressed state, the water receiving device 4 is in a water receiving state. By setting the elastic member, the water receiving device 4 is extended and retracted under the elastic force of the elastic member to achieve the water receiving state and the non-water receiving state, so that the structure of the water receiving device 4 to achieve sliding is simpler. In order to facilitate the assembly of the elastic member, a connecting column connecting the elastic member is also provided on the water receiving device 4. In order to make the sliding of the water receiving device 4 more stable, a slideway can be provided on one of the inner wall and the water receiving device 4, and a sliding shaft moving along the slideway can be provided on the other of the inner wall and the water receiving device 4. Of course, the slideway and the sliding shaft can also be not provided.

[0057] The evaporative cooling fan in this embodiment also includes: a power device, which is fixed on the housing 1, and the power device is connected to the water receiving device 4, and is suitable for driving the water receiving device 4 to rotate. Specifically, the power device in this embodiment is a motor 5. By fixing the power device on the housing 1, the power device drives the water receiving device 4 to rotate, so that when external force is required to move the water receiving device 4, the user does not have to operate manually, so that the user experience is better. As a convertible implementation method, it is also possible that the power device is not provided, and the user manually rotates the water receiving device 4.

[0058] like Figure 5 As shown, in order to facilitate assembly with the output shaft of the power device, the water receiving device 4 in this embodiment is provided with a matching hole 6, and the matching hole 6 is connected to the output shaft of the power device. Specifically, the matching hole 6 is a blind hole opened at the end of the rotating shaft 9 of the water receiving device 4. As a convertible embodiment, it is also possible that the matching space is a matching groove.

[0059] The evaporative cooling fan in this embodiment also includes: a sensing device, which is arranged on the accommodating chamber 2 and is suitable for sensing whether the wet curtain 15 is installed on the accommodating chamber 2. By arranging the sensing device on the accommodating chamber 2, it is possible to automatically sense whether the wet curtain 15 is installed on the accommodating chamber 2, thereby improving the user experience. Specifically, the sensing device in this embodiment is a sensing switch 7, which is suitable for squeezing the sensing switch 7 when the wet curtain 15 is assembled to the accommodating chamber 2, and the sensing switch 7 is disconnected. When the wet curtain 15 is not assembled to the accommodating chamber 2, the sensing switch 7 has no squeezing force, and the sensing switch 7 is connected. As a convertible embodiment, it is also possible that the sensing device is not arranged.

[0060] The evaporative cooling fan in this embodiment also includes: a controller, which is connected to the sensing device and the power device, and is suitable for controlling the power device to drive the water receiving device 4 to rotate to the water receiving state when the sensing device senses that the wet curtain 15 is not mounted on the accommodating chamber 2. By setting a controller connected to the sensing device and the power device, when the sensing device senses that the wet curtain 15 is not mounted on the accommodating chamber 2, the power device can be automatically controlled to drive the water receiving device 4 to rotate to the water receiving state, that is, the sensing action of whether the wet curtain 15 is mounted on the accommodating chamber 2 and the rotation action of the water receiving device 4 can all be realized automatically, and the user does not need any manual operation, which realizes full automation and greatly improves the user experience. As a convertible implementation method, it is also possible that no controller is set and the user controls manually.

[0061] The two ends of the water receiving device 4 in this embodiment are rotatably connected to the inner wall. By rotatably connecting both ends of the water receiving device 4 to the inner wall, the rotation of the water receiving device 4 is more stable, and the stability of the movement is improved. As a convertible embodiment, the water receiving device 4 can also be made of a material with greater strength, so that one end of the water receiving device 4 is rotatably connected to the inner wall on one side, and the other end is not connected to the inner wall on the other side.

[0062] In order to realize the stable rotation of both ends of the water receiving device 4, a positioning hole 8 is respectively provided on both sides of the inner wall in this embodiment, and a rotating shaft 9 matched with the positioning hole 8 is respectively provided on both sides of the water receiving device 4. In this embodiment, the material of the rotating shaft 9 is not too limited. As a preferred embodiment, the rotating shaft 9 itself can adopt an elastic structure, so that the rotating shaft 9 of the water receiving device 4 can be elastically deformed when installed, which is convenient for assembly. Specifically, the rotating shaft 9 itself can be made of rubber. By providing the matching positioning holes 8 and the rotating shaft 9 on both sides of the inner wall of the accommodating chamber 2 and the water receiving device 4, the water receiving device 4 can be rotated relative to the accommodating chamber 2, and the structure is relatively simple. As a convertible embodiment, it is also possible that the positioning hole is provided on the water receiving device and the rotating shaft is provided on the inner wall. As a convertible embodiment, it is also possible that the positioning hole 8 and the rotating shaft 9 are provided in plurality. As a convertible embodiment, it is also possible that the inner wall and the water receiving device 4 are directly hingedly connected. As a convertible embodiment, it is also possible that the rotating shafts 9 on both sides are elastic structures, or that the rotating shafts 9 on both sides are non-elastic structures.

[0063] In order to facilitate the control of the rotation angle of the water receiving device 4, the evaporative cooling fan in the present embodiment also includes a limiting structure, which is arranged on the accommodating chamber 2 and is suitable for limiting the rotation angle of the water receiving device 4. Specifically, the limiting structure in the present embodiment is two limiting blocks 10, which are arranged on the top wall of the accommodating chamber 2 to limit the rotation angle of one side of the water receiving device 4. As a convertible embodiment, it is also possible that the limiting structure is one, or more. As a convertible embodiment, it is also possible that the limiting structure is arranged at other positions of the shell 1. As a convertible embodiment, it is also possible that the limiting structure is a limiting column, or other forms of structure. As a convertible embodiment, it is also possible that the limiting structure simultaneously limits the rotation angles of both sides of the water receiving device 4. As a convertible embodiment, it is also possible that the limiting structure is arranged on the shell 1, or that the limiting structure is arranged on the shell 1 and on the inner wall of the accommodating chamber 2.

[0064] like Figure 4 As shown, the bottom of the water receiving chamber 16 in this embodiment is provided with a discharge port 11, which is suitable for discharging the water in the water receiving chamber 16 out of the housing 1. By providing the discharge port 11 at the bottom of the water receiving device 4, the water in the water receiving chamber 16 can be discharged out of the housing 1, preventing the water from overflowing into the housing 1 when the water receiving chamber 16 is full, which poses a safety hazard. As a convertible embodiment, it is also possible that the discharge port 11 is not provided, but the water in the water receiving chamber 16 is manually discharged out of the housing 1 regularly.

[0065] In order to facilitate water drainage, the evaporative cooling fan in this embodiment further includes a drainage structure, which is connected to the discharge port 11 and is suitable for draining water to the outside of the housing 1. By providing the drainage structure, when the water in the water receiving device 4 is transferred to the outside of the housing 1, the water can be better drained, thereby improving the transfer effect. Specifically, as Figure 6 As shown, the drainage structure in this embodiment is a drainage groove 12 provided on the housing 1. By setting the drainage structure as the drainage groove 12 provided on the housing 1, the structure is simpler and occupies less space, so that the overall volume of the evaporative cooling fan is smaller. As a convertible embodiment, the drainage structure can also be a water pipe, which directly leads from the water receiving device 4 to the outside of the housing 1.

[0066] The evaporative cooling fan in this embodiment further includes a dustproof net 14, which is fixedly connected to the housing 1 and located at the opening of the accommodating chamber 2 close to the wet curtain 15. By fixing the dustproof net 14 on the housing 1 and locating the opening of the accommodating chamber 2 close to the wet curtain 15, the air entering the wet curtain 15 can be filtered to improve the cleanliness of the air outlet. As a convertible embodiment, the dustproof net 14 may also be not provided.

[0067] When assembling the evaporative cooling fan, the shell 1 can be first fixed to the air duct of the evaporative cooling fan by screws, and then the top cover 17 can be fixed to the air duct and the shell 1 respectively, and then the motor 5 can be fixed to the positioning hole 8 on one side of the shell 1 with screws, and then the rotating shaft 9 with the matching hole 6 is passed through the positioning hole 8 and fixed with the output shaft of the motor 5. Since the other end of the water receiving device 4 is an elastic structure, the water receiving device 4 can be assembled to the positioning hole 8 on the other side of the rear shell by force. When there is no other external force, the opening and closing of the water receiving device 4 can only be controlled by the motor 5. At the same time, a limit block 10 is set on the shell 1 to ensure the rotation angle of the water receiving device 4. Then the induction switch 7 is assembled to the bottom wall of the accommodating chamber 2, and the wet curtain 15 is assembled into the accommodating chamber 2. Finally, the dustproof net 14 is assembled to fix the wet curtain 15, thereby completing the assembly.

[0068] like Figure 7 As shown, when the user needs wind with a lower temperature, water flows down from the water diversion structure 3 on the top cover 17, and when it falls on the wet curtain 15, the wet curtain 15 is wetted, and the fan 13 in the air duct works to evaporate the water and take it away; Figure 8 As shown, when the user does not need lower temperature wind and has not installed the wet curtain 15, or the user forgets to install the wet curtain 15, the water receiving device 4 is driven by the motor 5 to rotate outward to the water receiving state, and water flows down from the water diversion structure 3 on the top cover 17 and directly flows into the water receiving chamber 16 of the water receiving device 4, and then the water flows out from the water outlet opened at the bottom of the water receiving chamber 16. At the same time, a drainage groove 12 is provided at the corresponding position on the shell 1 to drain the water downward to prevent water splashing, avoid splashing water and water flying into the motor 5, improve product quality, and enhance user experience.

[0069] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An evaporative cooling fan, characterized in that: include: A housing (1) having an open accommodating chamber (2), wherein the accommodating chamber (2) is suitable for assembling a wet curtain (15); A water distribution structure (3) is disposed above the accommodating cavity (2); A water receiving device (4) is movably arranged on the inner wall of the accommodating chamber (2), the water receiving device (4) comprising a water receiving chamber (16) opening toward the water diversion structure (3), the water receiving chamber (16) having a water receiving state directly below the water diversion structure (3) under the action of an external force when the wet curtain (15) is not installed in the accommodating chamber (2); and a non-water receiving state obliquely below the water diversion structure (3) under the action of an external force when the wet curtain (15) is installed in the accommodating chamber (2); In the water receiving state, water flows down from the water diversion structure (3) and directly flows into the water receiving chamber (16) of the water receiving device (4), thereby preventing water from splashing.

2. The evaporative cooling fan according to claim 1, characterized in that: The water receiving device (4) is rotatably connected to the inner wall.

3. The evaporative cooling fan according to claim 2, characterized in that: Also includes: A power device is fixed on the housing (1), the power device is connected to the water receiving device (4), and is suitable for driving the water receiving device (4) to rotate.

4. The evaporative cooling fan according to claim 3, characterized in that: The water receiving device (4) is provided with a matching space, and the matching space is connected to the output shaft of the power device.

5. The evaporative cooling fan according to claim 3, characterized in that: Also includes: A sensing device is provided on the accommodating chamber (2) and is suitable for sensing whether the wet curtain (15) is mounted on the accommodating chamber (2).

6. The evaporative cooling fan according to claim 5, characterized in that: The sensing device is a sensing switch (7) adapted to press the sensing switch (7) when the wet curtain (15) is assembled into the accommodating chamber (2), thereby disconnecting the sensing switch (7).

7. The evaporative cooling fan according to claim 5, characterized in that: Also includes: A controller is connected to the sensing device and the power device, and is adapted to control the power device to drive the water receiving device (4) to rotate to the water receiving state when the sensing device senses that the wet curtain (15) is not mounted on the accommodating chamber (2).

8. The evaporative cooling fan according to any one of claims 2 to 7, characterized in that: Both ends of the water receiving device (4) are rotatably connected to the inner wall.

9. The evaporative cooling fan according to claim 8, characterized in that: At least one positioning hole (8) or a rotating shaft is respectively provided on both sides of the inner wall, and a rotating shaft (9) or a positioning hole that is cooperatively connected to the positioning hole (8) or the rotating shaft is provided on the water receiving device (4).

10. The evaporative cooling fan according to claim 9, characterized in that: The rotating shaft (9) on at least one side is an elastic structure.

11. The evaporative cooling fan according to any one of claims 2 to 7, characterized in that: It also comprises a limiting structure, which is arranged on the shell (1) and / or the accommodating cavity (2) and is suitable for limiting the rotation angle of the water receiving device (4).

12. The evaporative cooling fan according to any one of claims 1 to 7, characterized in that: The bottom of the water receiving device (4) is provided with a discharge port (11) suitable for discharging water in the water receiving device (4) out of the housing (1).

13. The evaporative cooling fan according to claim 12, characterized in that: Also includes: A drainage structure, the drainage structure being in communication with the discharge port (11) and being suitable for draining water to the outside of the housing (1).

14. The evaporative cooling fan according to claim 13, characterized in that: The drainage structure is a drainage groove (12) provided on the shell (1).

15. The evaporative cooling fan according to any one of claims 1 to 7, characterized in that: Also includes: A dustproof net (14) is fixedly connected to the housing (1) and is located at an opening of the accommodating chamber (2) close to the wet curtain (15).

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