Cooling fan with double water tanks

Abstract

The utility model relates to the technical field of household appliances, and provides a cooling fan with double water tanks, the cooling fan comprises a fan main body, a wet curtain water absorption plate and a water tank main body, the fan main body comprises an air outlet end and an air inlet end, and the wet curtain water absorption plate is arranged at the air inlet end of the fan main body; the water tank body is located below the fan body and comprises a first water tank and a second water tank, the capacity of the second water tank is smaller than that of the first water tank, and the first water tank is located above the second water tank and communicates with the second water tank. A refrigerating system of the cooling fan main body is arranged in the second water tank and below the second water tank; the second water tank is connected with the upper end of the wet curtain water absorption plate through a water pumping pipe, water in the second water tank is pumped to the upper end of the wet curtain water absorption plate through a water pump, and the lower end of the first water tank is communicated with the lower end of the wet curtain water absorption plate through a backflow pipe. A step is arranged in the first water tank. The cooling effect of the cooling fan can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a cooling fan with double water tanks. Background Art

[0002] A cooling fan is a household appliance that can deliver relatively low-temperature cold air to the surrounding environment. It can effectively reduce the indoor temperature and provide a comfortable environment, and is widely welcomed. The working principle of the cooling fan is to use a circulating water pump to continuously pump out the water in the water tank and spray it evenly on the evaporative filter layer through a water distribution system. The air enters the cooling fan and flows through the evaporative filter layer, and fully exchanges heat with the water in the evaporative filter layer, thereby forming cold air that flows out of the cooling fan to achieve a cooling effect.

[0003] Regarding the above-mentioned related technologies, most of the cooling fans on the market currently adopt a single water tank design. Although this design has a simple structure, during continuous use, the water in the single water tank flows slowly and the water in the single water tank heats up quickly, resulting in poor cooling effect of the cooling fan, affecting the user experience, and therefore needs to be improved. Utility Model Content

[0004] In order to improve the cooling effect of a cooling fan, the present application provides a cooling fan with a double water tank.

[0005] The present application provides a cooling fan with a double water tank adopts the following technical solution:

[0006] A cooling fan with double water tanks, comprising a fan body, a wet curtain water absorption plate and a water tank body, wherein the fan body comprises an air outlet and an air inlet, and the wet curtain water absorption plate is arranged at the air inlet end of the fan body; the water tank body is located below the fan body, and the water tank body comprises a first water tank and a second water tank, wherein the capacity of the second water tank is smaller than that of the first water tank, and the first water tank is located above the second water tank and is connected to the second water tank;

[0007] The second water tank is connected to the upper end of the wet curtain water absorption plate through a pumping pipe, and the water in the second water tank is pumped to the upper end of the wet curtain water absorption plate by a pumping pump. The first water tank and the lower end of the wet curtain water absorption plate are connected through a return pipe.

[0008] By adopting the above technical solution, when the cooling fan is running, the water pump transports the water in the second water tank to the upper end of the wet curtain water absorption plate through the water pump pipe. The air flow flows in from the air inlet end, flows through the wet curtain water absorption plate in the middle, absorbs heat through the evaporation of water, exchanges heat with the air, and then flows out from the air outlet, thereby forming cold air flowing out of the cooling fan, and the water after circulation will flow back to the first water tank from the lower end of the wet curtain water absorption plate.

[0009] By setting up two water tanks, the first water tank and the second water tank are connected to each other, the liquid free surface in the first water tank is higher, and the vertical distance from the liquid free surface to the bottom of the second water tank is larger, so that the liquid pressure on the bottom of the second water tank is larger, thereby increasing the water flow speed, and the water can pass through the wet curtain water absorption plate more quickly and over a large range, thereby improving the cooling effect of the cold fan.

[0010] Preferably, it further includes a shielding assembly, which includes a first shell and a second shell, the first shell and the second shell are detachably connected, and a accommodating cavity is formed therebetween, and the water tank body is disposed in the accommodating cavity.

[0011] By adopting the above technical solution, the shielding component can shield the water tank body, thereby improving the safety of the water tank body during use. When there is a problem with the water tank body, the shielding component can also be disassembled to inspect the water tank body.

[0012] Preferably, it further comprises a base, the fan body and the water tank body are both arranged on the base, and the bottom of the base is rotatably connected to a plurality of rollers.

[0013] By adopting the above technical solution, the presence of the roller can facilitate the user to move the entire cooling fan to a desired position for blowing air, thereby improving practicality.

[0014] Preferably, a protective mesh cover is also connected to the fan body, and the air outlet end and the air inlet end of the fan body are both provided with the protective mesh cover.

[0015] By adopting the above technical solution, the protective mesh cover can block and protect the fan of the fan body, avoiding the danger caused by the user's fingers directly touching the fan, thereby improving safety.

[0016] Preferably, the protective mesh cover is detachably connected to the fan body.

[0017] By adopting the above technical solution, when the surface of the protective mesh cover is relatively dirty, the user can remove the protective mesh cover, clean it and then reinstall it.

[0018] Preferably, a drainage pipe is provided at the bottom of the first water tank.

[0019] By adopting the above technical solution, the drainage pipe can conveniently discharge the sewage inside the first water tank.

[0020] Preferably, a liquid level sensor is further included, a step is provided inside the first water tank, the step surface is located above the bottom of the first water tank, and the liquid level sensor is provided on the first water tank and is used to detect the liquid level at the step surface.

[0021] By adopting the above technical solution, the step is designed so that during the circulation of water in the first water tank, the cold water (with higher density) can be kept at the bottom of the first water tank as much as possible, while the circulated hot water (with lower density) flows to the top of the first water tank, thereby reducing the refrigeration pressure of the refrigeration system in the second water tank.

[0022] In addition, during the continuous use of the cooling fan, the water in the water tank body will gradually be consumed, and the liquid level in the first water tank will gradually decrease. When the liquid level sensor detects that the liquid level in the first water tank is lower than the step surface, the detection signal can be converted into a prompt signal to remind the user to refill the first water tank to ensure the cooling effect.

[0023] Preferably, the outer surface of the fan body is coated with a paint layer.

[0024] By adopting the above technical solution, the paint layer can increase the aesthetics of the outer surface of the fan body and improve the ornamental value.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] (1) By setting up the first water tank and the second water tank, the first water tank raises the height of the liquid free surface, so that the liquid pressure on the bottom of the second water tank is greater, thereby increasing the water flow speed, and the water can pass through the wet curtain water absorption plate more quickly and over a large area, thereby improving the cooling effect of the cold fan.

[0027] (2) By setting the roller, the presence of the roller can facilitate the user to move the entire cooling fan to the required position for blowing air, thereby improving practicality.

[0028] (3) By setting up a protective mesh cover, the protective mesh cover can block and protect the fan of the fan body, preventing the user's fingers from directly touching the fan and causing danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the structure of a cooling fan in an embodiment of the present application;

[0030] Figure 2 is an exploded schematic diagram of a fan body in an embodiment of the present application;

[0031] Figure 3 It is a structural schematic diagram of the water tank body in the embodiment of the present application;

[0032] Figure 4 It is a cross-sectional view of the water tank body AA in the embodiment of the present application.

[0033] Figure numerals: 1. Fan body; 2. Wet curtain water absorption plate; 3. Water tank body; 31. First water tank; 32. Second water tank; 4. Base; 5. Protective mesh cover; 6. Roller; 7. Shielding assembly; 71. First shell; 72. Second shell; 8. Drainage pipe; 9. Step; 10. Liquid level sensor. DETAILED DESCRIPTION

[0034] The technical solution of the present application will be 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. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0035] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0038] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.

[0039] The present application embodiment discloses a cooling fan with a double water tank. Figure 1 and Figure 2The cooling fan includes a fan body 1, a wet curtain water absorption plate 2, a water tank body 3 and a base 4. The fan body 1 includes an air outlet and an air inlet. The fan body 1 blows air through a fan. The wet curtain water absorption plate 2 is installed at the air inlet of the fan body 1 to cool the air blown by the fan body 1. The outer surface of the fan body 1 is coated with a paint layer, which can increase the aesthetics of the outer surface of the entire fan body 1.

[0040] A protective mesh cover 5 is also fixedly connected to the fan body 1, and the air outlet and air inlet ends of the fan body 1 are both provided with protective mesh covers 5. The protective mesh cover 5 can block and protect the fan of the fan body 1, preventing the user's fingers from directly touching the fan and causing danger, thereby improving the safety of use. In this embodiment, the protective mesh cover 5 is detachably connected to the fan body 1, and the edge of the protective mesh cover 5 is integrally connected with a plurality of card blocks, and the fan body 1 is provided with corresponding card slots, and the card blocks are carded in the card slots. When the surface of the protective mesh cover 5 is relatively dirty, the user can apply force and remove the protective mesh cover 5, and then reinstall it after cleaning.

[0041] The water tank body 3 is located directly below the fan body 1. The fan body 1 and the water tank body 3 are both mounted on a base 4. The bottom of the base 4 is also rotatably connected to a plurality of rollers 6. As shown in the figure, there are four rollers 6, each of which is located at the corner of the base 4. The presence of the rollers 6 makes it convenient for the user to move the entire cooling fan to a desired position for blowing air, thereby improving practicality. Among them, a shielding assembly 7 is also mounted on the base 4. The shielding assembly 7 includes a first shell 71 and a second shell 72. The first shell 71 and the second shell 72 are detachably connected by a snap-on method. An accommodating cavity is formed between the first shell 71 and the second shell 72, and the water tank body 3 is placed in the accommodating cavity.

[0042] Combination Figure 3 and Figure 4 Specifically, the water tank body 3 includes a first water tank 31 and a second water tank 32. The capacity of the second water tank 32 is smaller than that of the first water tank 31. The first water tank 31 is located above the second water tank 32 and is connected to the second water tank 32. The cooling system of the cooling fan is arranged in and below the second water tank 32. The second water tank 32 is connected to the upper end of the wet curtain water absorption plate 2 through a pumping pipe, and the pumping pipe is connected to the bottom of the second water tank 32. The water in the second water tank 32 is pumped to the upper end of the wet curtain water absorption plate 2 by a pumping pump, and the lower end of the first water tank 31 and the wet curtain water absorption plate 2 are connected through a return pipe. Among them, the bottom of the first water tank 31 is also connected to a drainage pipe 8. When the machine is not in working state, the drainage pipe 8 can discharge the accumulated water in the first water tank 31.

[0043] When the cooling fan is running, the water pump transports the water in the second water tank 32 to the upper end of the wet curtain water absorption plate 2 through the water pump pipe, and the airflow flows in from the air inlet end, flows through the wet curtain water absorption plate 2 in the middle, absorbs heat through the evaporation of water and exchanges heat with the air, and then flows out from the air outlet end, thereby forming cold wind flowing out of the cooling fan, and the water after circulation will flow back to the first water tank 31 from the lower end of the wet curtain water absorption plate 2. By setting up two water tanks, the free surface of the liquid in the first water tank 31 is higher, and the first water tank 31 and the second water tank 32 are connected to each other, and the vertical distance from the free surface of the liquid to the bottom of the second water tank 32 is larger, so that the liquid pressure on the bottom of the second water tank 32 is larger, thereby increasing the water flow speed, and the water can pass through the inside of the wet curtain water absorption plate 2 more quickly and over a large range, thereby improving the cooling effect of the cooling fan.

[0044] In addition, a step 9 is provided inside the first water tank 31, and the step surface of the step 9 is located above the bottom of the first water tank 31. Due to the existence of the step 9, when the volume of the liquid is constant, the liquid level height in the water tank can be increased. A liquid level sensor 10 is also installed on the first water tank 31, and the liquid level sensor 10 is close to the step 9 and is used to detect the liquid level at the step surface of the step 9. The design of the step 9 is to keep the cold water (with a higher density) as much as possible below the first water tank 31 during the circulation of the water in the first water tank 31, while the circulated hot water (with a lower density) flows to the top of the first water tank 31, thereby reducing the refrigeration pressure of the refrigeration system in the second water tank 32.

[0045] In addition, during the continuous use of the cooling fan, the water in the water tank body 3 will be gradually consumed, and the liquid level in the first water tank 31 will gradually decrease. By adding a liquid level sensor 10, when the liquid level sensor 10 detects that the liquid level in the first water tank 31 is lower than the step surface of the step 9, the detection signal can be converted into a prompt signal to remind the user to add water to the first water tank 31 to ensure the cooling effect.

[0046] The implementation principle of a cooling fan with double water tanks in an embodiment of the present application is as follows: when the cooling fan is running, the water pump transports the water in the second water tank 32 to the upper end of the wet curtain water absorption plate 2 through the water pump pipe, and the air flow flows in from the air inlet end, passes through the wet curtain water absorption plate 2 in the middle, absorbs heat through the evaporation of water, exchanges heat with the air, and then flows out from the air outlet end, thereby forming cold wind flowing out of the cooling fan, and the water after circulation will flow back to the first water tank 31 from the lower end of the wet curtain water absorption plate 2.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling fan with double water tanks, characterized in that: The cooling fan comprises a fan body (1), a wet curtain water absorption plate (2) and a water tank body (3), wherein the fan body (1) comprises an air outlet and an air inlet, and the wet curtain water absorption plate (2) is arranged at the air inlet of the fan body (1); the water tank body (3) is located below the fan body (1), and the water tank body (3) comprises a first water tank (31) and a second water tank (32), wherein the capacity of the second water tank (32) is smaller than that of the first water tank (31), and the first water tank (31) is located above the second water tank (32) and is connected to the second water tank (32); the cooling system of the cooling fan is arranged in and below the second water tank (32); The second water tank (32) is connected to the upper end of the wet curtain water absorption plate (2) via a pumping pipe, and the water in the second water tank (32) is pumped to the upper end of the wet curtain water absorption plate (2) via a pumping pump. The first water tank (31) and the lower end of the wet curtain water absorption plate (2) are connected via a return pipe.

2. A cooling fan with double water tanks according to claim 1, characterized in that: It also comprises a shielding assembly (7), the shielding assembly (7) comprising a first shell (71) and a second shell (72), the first shell (71) and the second shell (72) being detachably connected, and a receiving cavity is formed between the first shell (71) and the second shell (72), and the water tank body (3) is arranged in the receiving cavity.

3. A cooling fan with double water tanks according to claim 1, characterized in that: It also comprises a base (4), on which the fan body (1) and the water tank body (3) are both arranged, and a plurality of rollers (6) are rotatably connected to the bottom of the base (4).

4. A cooling fan with double water tanks according to claim 1, characterized in that: The fan body (1) is also connected to a protective mesh cover (5), and both the air outlet end and the air inlet end of the fan body (1) are provided with the protective mesh cover (5).

5. A cooling fan with double water tanks according to claim 4, characterized in that: The protective mesh cover (5) is detachably connected to the fan body (1).

6. A cooling fan with double water tanks according to claim 1, characterized in that: A drainage pipe (8) is provided at the bottom of the first water tank (31).

7. A cooling fan with double water tanks according to claim 1, characterized in that: It also comprises a liquid level sensor (10); a step (9) is provided inside the first water tank (31); the step surface of the step (9) is located above the bottom of the first water tank (31); the liquid level sensor (10) is provided on the first water tank (31) and is used to detect the liquid level at the step surface of the step (9).

8. The cooling fan with double water tanks according to claim 1, characterized in that: The outer surface of the fan body (1) is coated with a paint layer.

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