Air cooler

Abstract

The present invention discloses a cold air machine, including a lower water tank, a water receiving pan, a condenser pipe and a wet curtain assembly; the water receiving pan is arranged above the lower water tank, a water flow channel is formed on the water receiving pan, the water flow channel has a water outlet, and the water outlet is connected to the lower water tank; the condenser pipe is arranged in the water flow channel; the wet curtain assembly is located above the water flow channel. The technical solution of the present invention is provided with a water receiving pan above the lower water tank, a condenser pipe is arranged in the water flow channel of the water receiving pan, and the wet curtain assembly is arranged above the water flow channel, so that the cold water that falls after the wet curtain evaporates and dissipates heat falls into the water flow channel and exchanges heat with the condenser pipe in time. In addition, the volume of the water flow channel is small, which ensures that the flow rate of the water in the water flow channel is fast, and the water that falls into the water flow channel has better heat exchange efficiency and heat exchange effect with the condenser pipe. The water flow channel can be replenished with the newly fallen cold water on the wet curtain assembly in time to form a cycle, thereby increasing the temperature difference between the condenser and the water flow in the water flow channel, and improving the heat exchange efficiency and heat exchange effect of the condenser.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, and in particular to an air cooler. Background Art

[0002] The air cooler is a cooling device that mainly achieves air cooling through the principle that water absorbs heat during evaporation. The air cooler usually includes a water tank, a water pump, a fan, and a wet curtain. The water tank is set below the wet curtain. The water pump pumps the water in the water tank to the top of the wet curtain, so that part of the water on the wet curtain is evaporated to achieve the effect of air cooling. The other part of the water on the wet curtain falls back into the water tank under the action of gravity, and the water pump pumps it to the top of the wet curtain again.

[0003] In order to achieve a better cooling effect, an evaporator is also installed behind the wet curtain. The evaporator is connected to the condenser to form a heat exchange circulation path. The traditional condenser is usually placed in a water tank and soaked in water. However, due to the large volume of the water tank and the non-circulating water in the water tank, the cooling effect of the water in the water tank on the condenser is not ideal, and a larger external power consumption is required to cool the condenser. Summary of the invention

[0004] The main purpose of the present invention is to provide an air cooler, aiming to improve the problem that the cooling effect of the condenser pipe by the water in the water tank is poor.

[0005] To achieve the above-mentioned purpose, the air cooler proposed in the present invention includes a lower water tank, a water receiving pan, a condenser and a wet curtain assembly; the water receiving pan is arranged above the lower water tank, a water flow channel is formed on the water receiving pan, the water flow channel has a water droplet, and the water droplet is connected to the lower water tank; the condenser is arranged in the water flow channel; the wet curtain assembly is located above the water flow channel.

[0006] Optionally, the condenser is arranged in a spiral shape.

[0007] Optionally, a side wall of the water flow channel is formed with a guiding slope.

[0008] Optionally, the wet curtain assembly has a water outlet, and the water flow channel has a water inlet end and a water outlet end that are interconnected; the water inlet end is arranged below the water outlet, and the water outlet is opened at the water outlet end.

[0009] Optionally, a stop platform is provided at the water outlet, and a surface of the stop platform extends toward the water outlet.

[0010] Optionally, the surface of the stop platform is tilted downward from the side away from the drain outlet to the side close to the drain outlet.

[0011] Optionally, the water receiving tray is recessed toward the lower water tank to form the water flow channel.

[0012] Optionally, the water receiving tray is further connected to a mounting cover, and the mounting cover covers the opening of the water flow channel.

[0013] Optionally, a longitudinally extending partition is provided in the lower water tank, and the partition divides the lower water tank into a first cavity and a second cavity; the drain port is connected to the first cavity; and a water hole is provided on the partition.

[0014] Optionally, the air cooler also includes an upper water tank; the wet curtain assembly includes an upper wet curtain and a lower wet curtain; the lower wet curtain is arranged above the water flow channel, the upper water tank is located above the lower wet curtain, and the upper water tank is provided with an overflow hole corresponding to the lower wet curtain; the upper wet curtain is arranged above the upper water tank.

[0015] The technical solution of the present invention is provided with a water receiving pan above the lower water tank, a condenser is provided in the water flow channel of the water receiving pan, and the wet curtain assembly is provided above the water flow channel, so that the water with a lower temperature falling from the wet curtain assembly after the wet curtain evaporates and dissipates heat can fall into the water flow channel and exchange heat with the condenser. In addition, since the water flow channel is provided on the water receiving pan, the volume of the water flow channel is small, which ensures that the flow rate of water in the water flow channel is fast, and the water falling from the wet curtain assembly into the water flow channel will have a better heat exchange efficiency and heat exchange effect with the condenser. In addition, since the water flow channel has a water outlet connected to the lower water tank, the water outlet allows the water in the water flow channel to flow to the lower water tank after heat exchange with the condenser, and will not accumulate in the water flow channel. At the same time, the water flow channel can be replenished in time with the newly fallen cold water on the wet curtain assembly to form a cycle, so that the condenser can always exchange heat with the water with a lower temperature, increasing the temperature difference between the condenser and the water flow in the water flow channel, thereby improving the heat exchange efficiency and heat exchange effect of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a partial structural schematic diagram of an embodiment of an air cooler of the present invention;

[0018] Figure 2 A schematic structural diagram of a water receiving tray in an air cooler according to the present invention from one perspective;

[0019] Figure 3 It is a structural schematic diagram of the water receiving tray in the air cooler of the present invention from another perspective;

[0020] Figure 4 for Figure 3 A is a partial enlarged view of the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the lower water tank in the air cooler of the present invention;

[0022] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0023] Figure 7 It is a structural schematic diagram of a water receiving tray of an air cooler of the present invention connected with a mounting cover;

[0024] Figure 8 It is a schematic diagram of the overall internal structure of the air cooler of the present invention.

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 Lower water tank 110 First cavity 120 Second cavity 200 Water tray 210 Water channel 211 water entry end 212 Water outlet 213 Downspout 214 Guide slope 215 Stop table 300 Condenser 400 Wet curtain assembly 410 Upper wet curtain 420 Lower wet curtain 500 Install the cover 600 Divider 610 Water hole 700 Head water tank 800 Evaporator 900 compressor

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] The invention provides a cooling fan.

[0032] In the embodiments of the present invention, please refer to Figure 1 and Figure 8 The air cooler includes a lower water tank 100, a water receiving pan 200, a condenser 300 and a wet curtain assembly 400; the water receiving pan 200 is arranged above the lower water tank 100, and a water flow channel 210 is formed on the water receiving pan 200, and the water flow channel 210 has a water droplet 213, and the water droplet 213 is connected to the lower water tank 100; the condenser 300 is arranged in the water flow channel 210; the wet curtain assembly 400 is located above the water flow channel 210.

[0033] It should be noted that the water receiving pan 200 is arranged above the lower water tank 100, which means that the bottom wall of the water receiving pan 200 is higher than the bottom wall of the lower water tank 100, that is, the water receiving pan 200 can be connected to the upper part of the lower water tank 100, at which time the bottom wall of the water receiving pan 200 is lower than or equal to the top of the lower water tank 100; or the bottom wall of the water receiving pan 200 is higher than the top of the lower water tank 100, at which time the water receiving pan 200 and the lower water tank 100 are separated from each other, and the two can be connected by a support or a connector. The "above" and "below" in the technical solution of the present invention are defined based on the placement state of the air cooler when it is working normally, that is, in this state, the direction toward the ground is "below", and the direction away from the ground is "above". In the technical solution of the present invention, after the wet curtain assembly 400 of the air cooler is wetted by water, a part of the water on the wet curtain assembly 400 evaporates and absorbs heat, thereby cooling the surrounding air; another part of the water on the wet curtain assembly 400 flows directly down. By placing the wet curtain assembly 400 above the water flow channel 210, the water flowing down from the wet curtain assembly 400 will directly fall into the water flow channel 210. By placing the condenser 300 in the water flow channel 210, the water in the water flow channel 210 can exchange heat with the condenser 300, thereby achieving the function of cooling the condenser 300, avoiding consuming more external energy to cool the condenser 300. The water flow channel 210 is provided with a water outlet 213 connected to the lower water tank 100, and the water in the water flow channel 210 can flow into the water storage in the lower water tank 100 through the water outlet 213. The water in the lower water tank 100 in the technical solution of the present invention can be used to supply water to the wet curtain assembly 400. A water pump can be provided on the water flow pipeline between the lower water tank 100 and the wet curtain assembly 400. The water pump is used to pump the water in the lower water tank 100 to the top of the wet curtain assembly 400 and sprinkle it on the wet curtain assembly 400. A part of the water on the wet curtain assembly 400 falls into the water flow channel 210 of the water receiving tray 200 again, and this cycle is repeated.

[0034] Specifically, when the wet curtain assembly 400 is located above the water flow channel 210, the wet curtain assembly 400 may include one set of wet curtains, or may include two sets of wet curtains or multiple sets of wet curtains. For example, when the wet curtain assembly 400 includes only one set of wet curtains, the water in the lower water tank 100 is directly pumped to the top of the wet curtains and poured onto the wet curtains by a water pump. When the wet curtain assembly 400 includes at least two sets of wet curtains, the at least two sets of wet curtains may be arranged up and down, or may be arranged in parallel in the horizontal direction.

[0035] In the technical solution of the present invention, by arranging a water receiving pan 200 above the lower water tank 100, a water flow channel 210 is formed in the water receiving pan 200, and the condenser 300 is arranged in the water flow channel 210, the water falling from the wet curtain assembly 400 can cool the condenser 300 in time, avoiding the water falling from the wet curtain to exchange heat with the condenser 300 after passing through a long path, thereby improving the heat exchange efficiency between the condenser 300 and the water falling from the wet curtain assembly 400. In addition, since the water receiving pan 200 is formed with a water flow channel 210, the volume in the water flow channel 210 is much smaller than the volume of the lower water tank 100. In a smaller space, the water with a lower temperature falling from the wet curtain assembly 400 has a better heat exchange efficiency when exchanging heat with the condenser 300, and has a better heat exchange effect. In addition, since the water flow channel 210 is provided with a water outlet 213 connected to the lower water tank 100, the water falling from the wet curtain assembly 400 can flow to the lower water tank 100 from the water outlet 213 in time after heat exchange with the condenser 300, waiting to receive the new water flow falling from the wet curtain assembly 400, and then continue to exchange heat with the condenser 300 through the new water flow. Since the temperature of the new water flow is relatively low, it can ensure that the condenser 300 can always exchange heat with the water flow with a relatively low temperature, that is, the temperature difference between the condenser 300 and the water in the water flow channel 210 is widened as much as possible, so that the condenser 300 obtains a better heat exchange effect and improves the cooling efficiency of the condenser 300. By further providing a lower water tank 100 below the water receiving tray 200, the lower water tank 100 can achieve the effect of storing water, avoiding the direct pumping of water from the water receiving tray 200, which causes the lack of water in the water receiving tray 200 to affect the timely heat exchange of the condenser 300.

[0036] The technical solution of the present invention is that a water receiving pan 200 is provided above the lower water tank 100, a condenser 300 is provided in the water flow channel 210 of the water receiving pan 200, and a wet curtain assembly 400 is provided above the water flow channel 210, so that the water with a lower temperature falling from the wet curtain assembly 400 after the wet curtain evaporates and dissipates heat can fall into the water flow channel 210 and exchange heat with the condenser 300. In addition, since the water flow channel 210 is provided on the water receiving pan 200, the volume of the water flow channel 210 is small, which ensures that the flow rate of the water in the water flow channel 210 is fast, and the water falling from the wet curtain assembly 400 into the water flow channel 210 will have better heat exchange efficiency and heat exchange effect with the condenser 300. Furthermore, since the water flow channel 210 has a drain port 213 connected to the lower water tank 100, the drain port 213 allows the water in the water flow channel 210 to flow to the lower water tank 100 after exchanging heat with the condenser, and will not accumulate in the water flow channel 210. At the same time, the water flow channel 210 can be replenished with new cold water falling from the wet curtain assembly 400 in time to form a circulation, so that the condenser can always exchange heat with water at a lower temperature, thereby increasing the temperature difference between the condenser and the water flow in the water flow channel 210, thereby improving the heat exchange efficiency and heat exchange effect of the condenser.

[0037] Furthermore, if Figure 1 As shown, in this embodiment, the condenser 300 is arranged in a spiral shape.

[0038] By spirally arranging the condenser tube 300 , the heat exchange area between the condenser tube 300 and the water flow is increased, thereby improving the heat exchange efficiency, so that the condenser tube 300 has a better heat exchange effect.

[0039] Of course, in other embodiments, the condenser 300 may also be bent to form a wave shape, a folded line shape or other shapes.

[0040] Furthermore, the shape formed by spiral winding of the condenser tube 300 can be adapted to the shape of the water flow channel 210. This configuration enables the condenser tube 300 to fully exchange heat with the water in the water flow channel 210, thereby improving the heat exchange efficiency of the condenser tube 300 and enhancing the heat exchange effect.

[0041] Specifically, the water flow channel 210 may also be S-shaped, U-shaped, V-shaped, rectangular, circular, spiral or other shapes.

[0042] Furthermore, if Figure 2 or Figure 3 As shown, a guide slope 214 is formed on the side wall of the water flow channel 210 .

[0043] By forming a guide slope 214 on the side wall of the water flow channel 210, the water of the wet curtain assembly 400 can flow to the bottom wall of the water flow channel 210 through the inner wall of the water flow channel 210, thereby ensuring that the water falling from the wet curtain assembly 400 can be collected in the water flow channel 210 as much as possible to further exchange heat with the condenser 300.

[0044] In this embodiment, please refer to Figures 2 to 4 The wet curtain assembly 400 has a water outlet (not shown), and the water flow channel 210 has a water inlet end 211 and a water outlet end 212 that are connected to each other; the water inlet end 211 is arranged below the water outlet, and the water outlet 213 is opened at the water outlet end 212.

[0045] By arranging the water inlet 211 correspondingly below the water outlet of the wet curtain assembly 400, the water on the wet curtain assembly 400 can be collected at the water outlet and fall into the water inlet 211 of the water flow channel 210 through the water outlet. Since the water outlet 213 is opened at the water outlet 212, the water falling into the water inlet 211 will flow to the water outlet 212 through the water flow channel 210. When the water flows from the water inlet 211 to the water outlet 212, it can ensure heat exchange with the condenser 300, avoiding the water from directly flowing out of the water outlet 213 of the water outlet 212.

[0046] Specifically, the water outlet 212 has a bottom wall and a side wall connected to the periphery of the bottom wall, and the water outlet 213 can be arranged on the bottom wall or on the side wall. When the water outlet 213 is arranged on the bottom wall, the inner wall of the water outlet 213 can extend upward to form a retaining ring, so that some water can be retained in the water flow channel 210, so that the water flow can contact more parts of the condenser 300 for heat exchange. When the water outlet 213 is arranged on the side wall, the height of the water outlet 213 can be higher than the bottom wall, so that some water can be retained in the water flow channel 210, so that the water flow can contact more parts of the condenser 300 for heat exchange.

[0047] In addition, the water flow channel 210 may have one water inlet end 211 and one water outlet end 212; or the water flow channel 210 may have at least two water inlet ends 211 and one water outlet end 212, and all water inlet ends 211 are connected to the water outlet end 212; or the water flow channel 210 may have at least two water inlet ends 211 and at least two water outlet ends 212, and each water inlet end 211 may be connected to one water outlet end 212. For example, when the water flow channel 210 has two water inlet ends 211 and one water outlet end 212, the water flow channel 210 may be U-shaped or V-shaped, the water outlet end 212 may be located in the middle of the water flow channel 210, and the water inlet ends 211 are the two ends of the water flow channel 210.

[0048] Further, please refer to Figure 3 and Figure 4 The water outlet 212 is provided with a stop platform 215 , and the surface of the stop platform 215 extends toward the water outlet 213 .

[0049] By providing a stopper 215 at the water outlet 212, the stopper 215 can stop a portion of the water in the water flow channel 210, ensuring that a portion of water is stored in the water flow channel 210 so that the condenser 300 is immersed in this portion of water, thereby preventing the condenser 300 from being overheated, thereby reducing the power consumption of cooling the condenser 300. When the height of the water in the water flow channel 210 is higher than the surface of the stopper 215, the water higher than the surface of the stopper 215 will flow along the surface of the stopper 215 to the water outlet 213 and flow out through the water outlet 213. Specifically, the stopper 215 can be formed by the bottom wall of the water flow channel 210 arching upward, or it can be formed by a single protrusion on the bottom wall of the water flow channel 210 by adding material.

[0050] Furthermore, based on the solution that the water outlet 212 is provided with a stopper 215, and the surface of the stopper 215 extends toward the water outlet 213, in this embodiment, the water outlet 213 is formed on the side wall of the water outlet 212 and penetrates the top of the side wall of the water outlet 212. Such a configuration can quickly transfer the water in the water flow channel 210 to the lower water tank 100, and avoid the phenomenon of excessive water accumulation in the water flow channel 210 of the water receiving tray 200 and water overflow.

[0051] Further, please refer to Figure 3 and Figure 4 The surface of the stop platform 215 is tilted downward from the side away from the water outlet 213 to the side close to the water outlet 213 .

[0052] With such arrangement, the surface of the stop platform 215 has a better guiding effect, so that the water flow higher than the surface of the stop platform 215 can be better guided to the water outlet 213 and flow out from the water outlet 213 .

[0053] Further, please refer to Figure 2 and Figure 3 The water receiving tray 200 is recessed toward the lower water tank 100 to form a water flow channel 210 .

[0054] With such arrangement, the water flow channel 210 has an upward opening, and the shape of the opening is adapted to the shape of the water flow channel 210 , thereby facilitating workers to place the condenser 300 in the water flow channel 210 through the opening, or facilitating workers to take the condenser 300 out of the water flow channel 210 .

[0055] Furthermore, if Figure 7 As shown, the water receiving tray 200 is also connected to a mounting cover 500 , and the mounting cover 500 covers a portion of the opening of the water flow channel 210 .

[0056] Such a configuration can, on the one hand, enable the installation cover 500 to protect the condenser 300, and on the other hand, prevent the water in the water flow channel 210 from splashing out. In addition, it can be understood that after the installation cover 500 covers the opening of the water flow channel 210, the condenser 300 is allowed to exchange heat with the water flow in a relatively closed space, so that the water flow and the condenser 300 have a better heat exchange effect. Specifically, the installation cover 500 can be detachably connected to the water receiving tray 200, so that it is convenient for the user to replace the condenser 300 in the water flow channel 210. For example, the installation cover 500 can be connected to the water receiving tray 200 by screw connection or snap connection. Or the installation cover 500 can be movably connected to the water receiving tray 200, for example, the installation cover 500 can be slidably connected or rotatably connected to the water receiving tray 200, so that the installation cover 500 can have an opening that covers the water flow channel 210 or opens the water flow channel 210.

[0057] Further, please refer to Figure 5 and Figure 6 A longitudinally extending partition plate 600 is provided in the lower water tank 100, and the partition plate 600 divides the lower water tank 100 into a first cavity 110 and a second cavity 120; the water outlet 213 is connected to the first cavity 110; and a water hole 610 is provided on the partition plate 600.

[0058] By providing a longitudinally extending partition plate 600 in the lower water tank 100, the partition plate 600 divides the lower water tank 100 into a first cavity 110 and a second cavity 120, and the water outlet 213 is connected to the first cavity 110, the water in the water receiving tray 200 can flow into the first cavity 110. By providing a water hole 610 on the partition plate 600, the water in the first cavity 110 and the water in the second cavity 120 can flow through the water hole 610, thereby accelerating the balance of the water temperature in the water tank. Specifically, the water hole 610 can be provided with one or at least two. When at least two water holes 610 are provided, the at least two water holes 610 can be distributed in the up-down direction.

[0059] Further, please refer to Figure 1 and Figure 8 The air cooler also includes an upper water tank 700, and the wet curtain assembly includes an upper wet curtain 410 and a lower wet curtain 420. The lower wet curtain 420 is arranged above the water flow channel 210, and the upper wet curtain 410 is located above the lower wet curtain 420. The upper water tank 700 is provided with an overflow hole, and the overflow hole is arranged corresponding to the lower wet curtain 420. The upper wet curtain 410 is arranged above the upper water tank 700.

[0060] Part of the water pouring onto the upper wet curtain 410 evaporates and absorbs heat to cool the surrounding air, and the other part of the water falls into the upper water tank 700. Part of the water falling into the upper water tank 700 also flows to the lower wet curtain 420 through the overflow hole, so that part of the water on the lower wet curtain 420 evaporates and absorbs heat to cool the surrounding air, and the other part of the water falls into the water flow channel 210 of the water receiving tray 200.

[0061] Specifically, a water inlet may be provided in the housing of the air cooler at a position corresponding to the position above the upper wet curtain 410, and the user may add water through the water inlet to achieve the effect of wetting the upper wet curtain 410. Alternatively, a water pump may be provided in the lower water tank 100 or the upper water tank 700, and the water pump is connected to the upper wet curtain 410, and the water pump pumps the water in the lower water tank 100 or the upper water tank 700 to the upper wet curtain 410, thereby achieving the effect of wetting the upper wet curtain 410. It is understandable that when the pipeline of the water pump connected to the upper wet curtain 410 can pass through the lower wet curtain 420, the water on the lower wet curtain 420 evaporates and absorbs heat to cool the surrounding air, and the pipeline of the water pump connected to the upper wet curtain 410 can also be cooled, thereby achieving the effect of further cooling the water that is poured onto the upper wet curtain 410.

[0062] Furthermore, when the wet curtain assembly 400 includes an upper wet curtain 410, the housing of the air cooler has an air inlet corresponding to the upper wet curtain 410, an evaporator is provided on the side of the upper wet curtain 410 away from the air inlet, a compressor and an expansion valve are also provided in the housing, the evaporator, the compressor, the condenser 300 and the expansion valve are connected in sequence, and the expansion valve is also connected to the evaporator, so that the evaporator, the compressor, the condenser 300 and the expansion valve form a circulation flow path, the refrigerant undergoes temperature and pressure changes in the circulation flow path, and the evaporation endothermic phenomenon is realized in the evaporator and the condensation exothermic phenomenon is realized in the condenser 300. It should be noted that since the connection relationship between the evaporator, the compressor, the condenser 300 and the expansion valve and the state of the refrigerant in the circulation flow path composed of these four belong to the prior art, they are not described in detail in the present invention. By arranging an evaporator on the side of the upper wet curtain 410 away from the air inlet, the air passing through the upper wet curtain 410 can exchange heat with the water on the upper wet curtain 410 and then pass through the evaporator, thereby further reducing the temperature of the air blown out from the air cooler in the technical solution of the present invention, and having a better cooling effect.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling fan, characterized in that: include: Lower water tank; A water receiving tray, the water receiving tray is arranged above the lower water tank, a water flow channel is formed on the water receiving tray, the water flow channel has a water droplet, and the water droplet is connected to the lower water tank; a condenser, the condenser being disposed in the water flow channel; and A wet curtain assembly, wherein the wet curtain assembly is located above the water flow channel; The air cooler also includes an upper water tank; the wet curtain assembly includes an upper wet curtain and a lower wet curtain; the lower wet curtain is arranged above the water flow channel, the upper water tank is located above the lower wet curtain, and the upper water tank is provided with an overflow hole corresponding to the lower wet curtain; the upper wet curtain is arranged above the upper water tank; a water pump is provided in the lower water tank, and the pipeline of the water pump connected to the upper wet curtain passes through the lower wet curtain, so that the lower wet curtain cools the pipeline.

2. The air cooler according to claim 1, characterized in that: The condenser is arranged in a spiral shape.

3. The air cooler according to claim 1, characterized in that: The side wall of the water flow channel is formed with a guiding slope.

4. The air cooler according to any one of claims 1 to 3, characterized in that: The wet curtain assembly has a water outlet, and the water flow channel has a water inlet end and a water outlet end which are connected to each other; the water inlet end is arranged below the water outlet, and the water outlet is opened at the water outlet end.

5. The air cooler according to claim 4, characterized in that: The water outlet is provided with a stop platform, and the surface of the stop platform extends toward the water outlet.

6. The air cooler according to claim 5, characterized in that: From a side away from the water outlet to a side close to the water outlet, the table surface of the stop platform is tilted downward.

7. The air cooler according to any one of claims 1 to 3, characterized in that: The water receiving tray is recessed toward the lower water tank to form the water flow channel.

8. The air cooler according to claim 7, characterized in that: The water receiving tray is also connected to a mounting cover, and the mounting cover covers the opening of the water flow channel.

9. The air cooler according to any one of claims 1 to 3, characterized in that: A longitudinally extending partition plate is provided in the lower water tank, and the partition plate divides the lower water tank into a first volume chamber and a second volume chamber; the water outlet is connected to the first volume chamber; and a water hole is provided on the partition plate.

10. The air cooler according to any one of claims 1 to 3, characterized in that: The air cooler also includes an upper water tank; the wet curtain assembly includes an upper wet curtain and a lower wet curtain; the lower wet curtain is arranged above the water flow channel, the upper water tank is located above the lower wet curtain, and the upper water tank is provided with an overflow hole corresponding to the lower wet curtain; the upper wet curtain is arranged above the upper water tank.

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