Drainage device and cooling fan including the same

Abstract

The present application relates to the technical field of air conditioning devices, and more specifically, to a drainage device for a cold fan, and also to a cold fan including the drainage device. The drainage device includes a drainage groove and a buffer member arranged in the drainage groove, one end of the drainage groove is used to be rotatably connected to one side of the cold fan wet curtain installation area, and the drainage groove has a first position and a second position during the rotation process; in the first position, the drainage groove is vertically arranged on one side of the cold fan wet curtain installation area, and in the second position, the free end of the drainage groove abuts against the other side opposite to the cold fan wet curtain installation area. The drainage device is installed in the cold fan, and when the wet curtain is taken out, the drainage groove rotates from the first position to the second position, and the drainage groove can catch the water flowing down from the top water tank, and the water in the drainage groove is gathered and then discharged, and the buffer member can prevent the water from falling into the drainage groove and causing splashing, which can well avoid the safety hazards and noise pollution caused by the user's failure to install the wet curtain.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning devices, and in particular to a drainage device for a cooling fan, and also to a cooling fan including the drainage device. Background Art

[0002] As a new cooling method between fans and air conditioners, cold fans have become increasingly popular among consumers. At present, cold fans generally humidify the air through wet curtains and then suck it in and blow it out through fans. Wet curtains and fans are indispensable structures of cold fans. Wet curtains play the role of dispersing water flow. For cold fans with detachable wet curtains, the water pumped up by the water pump flows out from the drain outlet on the top of the cold fan. The water column flowing out of the drain outlet flows through the wet curtain, which can increase the contact area with the air, increase the evaporation amount, and make the water column form invisible water mist that is blown out from the air outlet with the wind.

[0003] After users remove the wet curtain and clean the machine body and the wet curtain, they often forget to install the wet curtain and turn on the water pump to use the humidification function. The water from the drain will flow directly down, and the fan may inhale the water flowing down the water diversion hole, posing an electrical safety hazard. The water flowing down the water diversion hole will also impact the water collecting structure, causing splashing and noise, posing an electrical safety hazard and a poor user experience. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a drainage device for a cooling fan and a cooling fan including the drainage device, so as to prevent water droplets from being sucked into electrical equipment and reduce safety hazards when the wet curtain is forgotten to be installed.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present technical solution, the present technical solution provides a drainage device for a cooling fan.

[0006] According to the embodiment of the present application, the drainage device includes a drainage groove and a buffer member arranged in the drainage groove, one end of the drainage groove is used to be rotatably connected to one side of the cooling fan wet curtain installation area, and the drainage groove has a first position and a second position during the rotation process; in the first position, the drainage groove is vertically arranged on one side of the cooling fan wet curtain installation area, and in the second position, the free end of the drainage groove abuts against the other side opposite to the cooling fan wet curtain installation area.

[0007] Furthermore, the drainage device also includes a fixed seat and a rotating shaft arranged at one end of the drainage groove, and the rotating shaft is rotatably connected to the fixed seat.

[0008] Furthermore, the fixing seat includes a body and an axis groove matching the rotating shaft.

[0009] Furthermore, the buffer element is filter cotton.

[0010] Furthermore, the drainage device also includes an elastic member, and the elastic member constantly enables the drainage groove to have a tendency to rotate from the first position to the second position.

[0011] In order to achieve the above-mentioned purpose, according to the second aspect of the present technical solution, the present technical solution also provides a cooling fan.

[0012] According to the cooling fan of the embodiment of the present application, it includes the drainage device provided by the first aspect of the present application.

[0013] Furthermore, the cooling fan includes a rear shell, which is recessed inward to form a wet curtain installation area for installing a wet curtain. The drain outlet of the cooling fan water tank is located directly above the wet curtain installation area. When the drainage groove is in the second position, the notch of the drainage groove is located directly below the drain outlet.

[0014] Furthermore, the distance between one end of the drainage groove for rotational connection and the top of the cooling fan wet curtain installation area is greater than the length of the drainage groove, and the length of the drainage groove is greater than the width of the cooling fan wet curtain installation area.

[0015] Furthermore, in the case where the air guide device includes a fixing seat, the fixing seat is an independent component fixed to the rear shell of the cooling fan or the fixing seat is integrally formed with the rear shell of the cooling fan.

[0016] The drainage device provided in the above technical solution is installed in the cold fan. When the wet curtain is taken out, the drainage groove rotates from the first position to the second position. The drainage groove can receive the water flowing down from the top water groove. The water in the drainage groove is gathered and then discharged. The buffer can prevent the water from falling into the drainage groove and causing splashing, which can effectively avoid the safety hazards and noise pollution caused by the user's failure to install the wet curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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:

[0018] Figure 1 A structural reference diagram of a drainage device provided in an embodiment of the present application is schematically provided;

[0019] Figure 2 A three-dimensional reference diagram of a cooling fan water tank structure provided in an embodiment of the present application is schematically provided;

[0020] Figure 3A reference diagram of the state of the drainage device provided in the embodiment of the present application in the first position is schematically shown (without the wet curtain installed);

[0021] Figure 4 A reference diagram of the state of the drainage device provided in the embodiment of the present application in the first position (wet curtain installed) is schematically shown;

[0022] Figure 5 A reference diagram of the state of the drainage device provided in the embodiment of the present application in the second position is schematically shown;

[0023] Figure 6 A structural reference diagram of another drainage device provided in an embodiment of the present application is schematically provided.

[0024] In the figure:

[0025] 1. Drainage groove; 2. Buffer; 3. Fixed seat; 301. Main body; 302. Shaft groove; 4. Rotating shaft; 5. Wet curtain; 6. Back shell; 7. Water tank; 701. Drain outlet; 8. Water tank; 9. Top cover. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] During the operation of the cooling fan, the water pumped up by the water pump flows out from the drain outlet of the water tank on the top of the cooling fan. The water column flowing out of the drain outlet flows through the wet curtain, which can increase the contact area with the air and increase the evaporation amount, so that the water column forms a water mist that is invisible to the naked eye and is blown out from the air outlet with the wind. After the user removes the wet curtain and cleans the body and the wet curtain, it is easy to forget to install the wet curtain. At this time, when the cooling fan is turned on to use the humidification function, the water coming down from the drain outlet will flow directly down and fall directly onto the casing or other structures below the cooling fan, causing water splashing. The fan may inhale the splashing water and cause damage, posing a safety hazard. In addition, the water droplets that flow directly down and fall on the water tank or other structures below will cause a certain amount of noise, seriously affecting the quality and safety of the cooling fan and the user experience. In order to solve this problem, an embodiment of the present application provides a drainage device as shown in the figure, which is used to be installed on a cooling fan with a detachable wet curtain structure, such as an evaporative cooling fan. Figure 1 The drainage device shown includes a drainage groove 1 and a buffer member 2 disposed in the drainage groove 1. One end of the drainage groove 1 is used to be rotatably connected to one side of the cooling fan wet curtain installation area. The drainage groove 1 has a first position and a second position during the rotation process. Figure 3 and 4 As shown, in the first position, the drainage groove 1 is vertically arranged on one side of the cooling fan wet curtain installation area; Figure 5As shown, in the second position, the free end of the drainage groove 1 abuts against the other side of the wet curtain installation area of ​​the cooling fan. The drainage device is used to be installed in the cooling fan. When the wet curtain is installed in the cooling fan, the drainage groove 1 is limited by the spatial structure and is in the first position. Specifically, the drainage groove 1 will be limited between the wet curtain and the side wall of the wet curtain installation area. The free end of the drainage groove 1 will press against one side of the wet curtain and cannot be rotated to the second position; when the wet curtain in the cooling fan is taken out, the limit constraint of the wet curtain on the drainage groove 1 disappears. At this time, the drainage groove 1 will rotate downward along one end under the action of its own gravity, and gradually rotate to the second position. Finally, the free end of the drainage groove 1 will stop moving after it leans against the other side of the wet curtain installation area. The drainage groove 1 forms a certain angle with the bottom plane. At this time, the drainage groove 1 is just below the drain port, which can catch the water flowing down from the top water tank. The water in the drainage groove 1 is gathered and discharged, which can well avoid the safety hazards caused by the user's failure to install the wet curtain and improve the user experience. When the wet curtain in the cooling fan needs to be installed, the drainage groove 1 can be rotated along one end to the first position so that the drainage groove 1 avoids the installation space of the wet curtain, and then the wet curtain is installed. At this time, the water flows down from the top water tank and falls on the wet curtain, and the cooling fan can work normally. Among them, the buffer 2 can prevent the water from falling into the drainage groove and causing splashing, further reducing safety hazards and noise.

[0033] Preferably, the buffer 2 is a filter cotton which can filter and purify the water flow while playing a buffering role.

[0034] As an optional embodiment, the shape of the drainage groove 1 can be as follows: Figure 1 The U-shaped groove shown in the figure makes the groove body a structure that can accommodate and guide the liquid and is convenient for setting the buffer 2. In addition, the drainage groove 1 is set in a long strip shape, on the one hand, to achieve the need of the second position, on the other hand, as shown in FIG. Figure 2 As shown, since there are usually multiple drain outlets 701 of the top water tank 7 arranged at the bottom of the water tank 7 along the width direction of the cooling fan, the long strip arrangement can adapt to the layout of the drain outlets, and all water flowing down from the drain outlets 701 can be received and drained through the drainage groove 1.

[0035] As an optional implementation, Figure 6 As shown, the drainage device also includes a fixed seat 3 and a rotating shaft 4 arranged at one end of the drainage groove 1, and the rotating shaft 4 is rotatably connected to the fixed seat 3. The fixed seat 3 includes a body 301 and an axis groove 302 matching the rotating shaft 4. The axial direction setting principle of the rotating shaft 4 should ensure that the opening of the drainage groove 1 can face the water outlet of the top groove of the cooling fan when the drainage groove 1 is rotated to the second position.

[0036] In many cases, when the drainage device is used, after the wet curtain in the cold fan is removed, the drainage groove 1 often cannot rotate by itself due to the resistance of the rotating connection at the end of the drainage groove 1. Therefore, an elastic member can be provided in the drainage device, and the elastic member always makes the drainage groove 1 have a tendency to rotate from the first position to the second position. That is, the drainage groove 1 is rotated from the first position to the second position through the intervention of the elastic reset force of the elastic member. The specific form of the elastic member is not specifically limited. For example, the elastic member can be a coil spring provided on the side wall of the cold fan wet curtain installation area. When the drainage groove 1 is in the first position, the drainage groove 1 will compress the coil spring. In another example, the elastic member can also be a torsion spring provided at the rotating shaft 4. When the drainage groove 1 is in the first position, the torsion spring is compressed and tightened.

[0037] A specific installation and use environment of the drainage device is as follows Figure 3-5 As shown, Figure 4 This is a reference diagram of the state of the drainage device when the wet curtain is installed on the cooling fan. Figure 5 This is a reference diagram of the drainage device when the cooling fan is not equipped with a wet curtain. Specifically, the length of the drainage groove 1 and its inclination angle in the second position, the weight of the drainage groove 1, and the material of each structure are adjusted accordingly according to the specific use environment to achieve the above functions, and those skilled in the art can set them by themselves.

[0038] It should be noted that other structures and operations of the drainage device of the present application are known to ordinary technicians in the field, and can refer to the structure of related devices in the prior art, and will not be described in detail here.

[0039] The present application also provides a cooling fan, which includes the drainage device provided in the above embodiment of the present application. Figure 3-5 As shown, when the cooling fan is installed with the wet curtain 5, the drainage groove 1 is in the first position, and when the cooling fan is not installed with the wet curtain 5, the drainage groove 1 is in the second position. The cooling fan includes a rear shell 6, which is recessed inward to form a wet curtain installation area for installing the wet curtain 5. The water outlet 701 of the cooling fan water tank 7 is located directly above the wet curtain installation area. When the drainage groove 1 is in the second position, the notch of the drainage groove 1 is located directly below the water outlet 701. A top cover 9 may be provided above the water tank 7.

[0040] A water tank 8 is provided at the bottom of the cooling fan. The water flowing down from the drain outlet 701 of the cooling fan water tank 7 needs to be finally collected and returned to the water tank. Therefore, the drainage groove 1 needs to directly or indirectly guide the water flow to the water tank 8 at the bottom. Specifically, the water flow in the drainage groove 1 can flow to the casing of the cooling fan at one end of the drainage groove, and be guided to the bottom water tank 8 through the casing.

[0041] The distance between one end of the drainage groove 1 for rotational connection and the top of the cold fan wet curtain installation area is greater than the length of the drainage groove 1, and the length of the drainage groove 1 is greater than the width of the cold fan wet curtain installation area. The limitation of this structural dimension can make it easier for the drainage groove 1 to achieve mutual conversion between the first position and the second position in the cold fan wet curtain installation area. In the case where the drainage device includes a fixed seat 3, the fixed seat 3 can be an independent component fixed on the rear shell 6 of the cold fan, and the fixed seat 3 can also be integrally formed on the rear shell 6 of the cold fan. A rear cover can also be detachably provided on the rear shell 6 to close the wet curtain installation area, and the wet curtain is installed between the rear shell 6 and the rear cover.

[0042] Since the cooling fan disclosed in the embodiment of the present application includes the drainage device provided in the above embodiment, the cooling fan with the drainage device also has all the above technical effects, which will not be described one by one 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.

[0043] Some embodiments in this specification are described in a progressive 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.

[0044] 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

1. A cooling fan, characterized in that: The invention comprises a drainage device, wherein the drainage device comprises a drainage groove (1) and a buffer member (2) arranged in the drainage groove (1); one end of the drainage groove (1) is used for rotationally connecting to one side of the cold fan wet curtain installation area; the drainage groove (1) has a first position and a second position during rotation; in the first position, the drainage groove (1) is vertically arranged on one side of the cold fan wet curtain installation area; in the second position, the free end of the drainage groove (1) abuts against the other side opposite to the cold fan wet curtain installation area; when the cold fan is installed with the wet curtain (5), the drainage groove (1) is in the first position; when the cold fan is not installed with the wet curtain (5), the drainage groove (1) is in the second position.

2. The cooling fan according to claim 1, characterized in that: It also comprises a fixed seat (3) and a rotating shaft (4) arranged at one end of the drainage groove (1), and the rotating shaft (4) is rotatably connected to the fixed seat (3).

3. The cooling fan according to claim 2, characterized in that: The fixing seat (3) comprises a main body (301) and an axis groove (302) matching the rotating shaft (4).

4. The cooling fan according to claim 1, characterized in that: The buffer component (2) is filter cotton.

5. The cooling fan according to claim 1, characterized in that: It also comprises an elastic member, wherein the elastic member constantly enables the drainage groove (1) to have a tendency to rotate from the first position to the second position.

6. The cooling fan according to claim 1, characterized in that: It comprises a rear shell (6), the rear shell (6) is recessed inwardly to form a wet curtain installation area for installing a wet curtain (5), a water outlet (701) of a cooling fan water tank (7) is located directly above the wet curtain installation area, and when the drainage groove (1) is in the second position, the notch of the drainage groove (1) is located directly below the water outlet (701).

7. The cooling fan according to claim 1, characterized in that: The distance between one end of the drainage groove (1) for rotational connection and the top of the cooling fan wet curtain installation area is greater than the length of the drainage groove (1), and the length of the drainage groove (1) is greater than the width of the cooling fan wet curtain installation area.

8. The cooling fan according to claim 1, characterized in that: When the drainage device includes a fixing seat (3), the fixing seat (3) is an independent component fixed to the rear shell (6) of the cooling fan, or the fixing seat (3) is integrally formed with the rear shell (6) of the cooling fan.

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