Water supply structure and cooling fan

Abstract

This utility model discloses a water supply structure and a cooling fan. The water supply structure includes a shell, an inner water tank, and an outer water tank. The shell has a first accommodating cavity and a second accommodating cavity. The inner water tank is installed in the first accommodating cavity. Multiple outer water tanks are provided, and multiple outer water tanks are detachably installed in the second accommodating cavity for communication with the inner water tanks. According to the water supply structure of this utility model, the outer water tank is directly detachable, allowing it to be placed in a refrigerator, thereby replacing the function of an ice pack. Furthermore, the size of the outer water tank can be designed to be large enough to provide sufficient cooling capacity. The water in the outer water tank can supply water to the evaporative cooling pad, which not only does not reduce the water volume but can also increase the water volume to a certain extent, thereby effectively reducing the frequency of water replenishment.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a water supply structure and a cooling fan. Background Technology

[0002] The working principle of a cooling fan is based on the heat absorption of water evaporation, which lowers the air temperature through physical means. It also has ventilation and humidification functions. In related technologies, the ice crystal box used in the cooling fan needs to be placed into the water tank of the cooling fan after being taken out of the refrigerator. Therefore, the size of the ice crystal box is generally limited, and the cooling capacity that the ice crystal box can provide to the water tank is generally limited. Even if multiple ice crystal boxes are replaced in a cyclical manner, the cooling capacity provided by a single ice crystal box is relatively limited. Even if multiple ice crystal boxes are placed into the water tank at the same time, it is relatively complicated to remove multiple ice crystal boxes, and the ice crystal boxes will also occupy the space of the water in the water tank, which will easily increase the frequency of water replenishment in the water tank. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a water supply structure that can eliminate the need for an ice crystal box, increase the supply of cooling capacity, and reduce the frequency of water addition.

[0004] According to an embodiment of the present invention, the water supply structure can be used for a cooling fan, the cooling fan including a wet curtain and a fan opposite to the wet curtain, the water supply structure including: a housing having a first accommodating cavity and a second accommodating cavity in a bottom-to-top direction; an inner water tank installed in the first accommodating cavity, the inner water tank being adapted to supply water to the wet curtain; and a plurality of outer water tanks detachably installed in the second accommodating cavity for communication with the inner water tank.

[0005] According to the water supply structure of this utility model embodiment, the ice crystal box can be eliminated, and the outer water tank can be directly and detachably placed in the refrigerator, thereby replacing the function of the ice crystal box. Furthermore, the size of the outer water tank can be designed to be large enough to provide sufficient cooling capacity, and the water in the outer water tank can supply water to the wet curtain. This not only does not reduce the water volume, but can also increase the water volume to a certain extent, thereby effectively reducing the frequency of water addition.

[0006] In addition, the water supply structure of this utility model may also have the following additional technical features: In some embodiments of this utility model, the inner water tank has an opening facing upwards, and the outlets of the plurality of outer water tanks are all opposite to the opening.

[0007] In some embodiments of this utility model, a plurality of the external water tanks are arranged sequentially along a first direction.

[0008] In some embodiments of this invention, at least one of the two opposing sidewalls of the outer water tank is recessed inward to form a gripping groove.

[0009] In some embodiments of this utility model, a support frame is provided inside the second accommodating cavity, and the support frame is used to support the outer water tank.

[0010] In some embodiments of this utility model, the outer water tank includes a main body and a mating part connected to one end of the main body. The outlet of the outer water tank is located in the mating part. The main body is supported by the support frame. The support frame has a through hole. The mating part passes through the through hole so that the outer water tank communicates with the inner water tank.

[0011] In some embodiments of this utility model, in the direction from the body portion to the mating portion, the mating portion is constructed as a tapered shape with a gradually decreasing cross-section, and the water outlet is located at the end of the mating portion away from the body portion.

[0012] In some embodiments of this utility model, the water outlet is provided with a water-blocking component, which is adapted to close the water outlet. The support frame includes a support plate and a bearing ring. The support plate has the through hole. The bearing ring is connected to the lower side of the support plate. The bearing ring includes a bottom wall and a peripheral wall connected to the outer periphery of the bottom wall. The bottom wall and / or the peripheral wall has a water passage hole. The upper end of the peripheral wall surrounds the outer periphery of the through hole. The bottom wall is provided with a water guide component, which is adapted to cooperate with the water-blocking component to open the water outlet.

[0013] In some embodiments of this utility model, the water-blocking component includes: a sealing cap, an elastic element, and a sealing gasket. The sealing cap is detachably installed at the water outlet. The sealing cap has a cover hole. The sealing gasket is disposed in the cover hole. The elastic element is connected between the sealing cap and the sealing gasket to keep the sealing gasket in a closed state that closes the cover hole. The water-guiding component is adapted to abut against the sealing gasket to overcome the elastic force of the elastic element, so that the sealing gasket opens the cover hole.

[0014] This utility model also proposes a cooling fan having the aforementioned water supply structure.

[0015] According to an embodiment of the present invention, the cooling fan includes a fan, a wet curtain located on the air inlet side of the fan, and a water supply structure as described in the above embodiment. The water supply structure is used to supply water to the wet curtain. By providing the water supply structure described in the above embodiment, the ice crystal box can be eliminated, and the outer water tank can be directly and detachably placed in a refrigerator, thereby replacing the function of the ice crystal box. Furthermore, the size of the outer water tank can be designed to be larger, providing sufficient cooling capacity. The water in the outer water tank can supply water to the wet curtain, which not only does not reduce the water volume but can also increase the water volume to a certain extent, thereby effectively reducing the frequency of water replenishment.

[0016] In some embodiments of this utility model, the cooling fan further includes: a water guide, the water guide being disposed in the second accommodating cavity below the wet curtain, the water guide having a water guiding slope for guiding the water dripping from the wet curtain to the inner water tank, wherein the water guide and the housing define an accommodating cavity for accommodating the outer water tank, and the outer water tank is provided with an avoidance slope corresponding to the water guiding slope.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of a cooling fan according to an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the structure of multiple external water tanks of a refrigeration fan according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the internal water tank of a cooling fan according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the first angle structure of the support frame of the cooling fan according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the second angle structure of the support frame of the cooling fan according to an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the support frame of the refrigeration fan according to an embodiment of the present utility model at a third angle.

[0024] Figure 7This is an exploded view of the external water tank of the refrigeration fan according to an embodiment of the present utility model.

[0025] Figure 8 This is a schematic diagram of the structure of the external water tank of the refrigeration fan according to an embodiment of the present utility model.

[0026] Figure label: 100. Cooling fan; 1. Housing; 11. First receiving cavity; 12. Second receiving cavity; 2. Inner water tank; 21. Opening; 3. External water tank; 30. Grip groove; 31. Main body; 32. Fitting part; 33. Avoidance slope; 4. Support frame; 41. Support plate; 411. Through hole; 42. Bearing ring; 421. Bottom wall; 4211. Water guide; 422. Peripheral wall; 43. Water passage hole; 5. Water-blocking component; 51. Sealing cap; 52. Elastic component; 53. Sealing gasket; 54. Sealing ring; 61. External thread; 7. Cover plate; 8. Flow guide; 81. Flow guide ramp; X, the first direction. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The following is for reference. Figures 1-8 Describes a water supply structure according to an embodiment of the present utility model.

[0031] like Figure 1 and Figure 2 As shown, according to the embodiment of the present utility model, the water supply structure includes a shell 1, an inner water tank 2 and a plurality of outer water tanks 3. The shell 1 has a first accommodating cavity 11 and a second accommodating cavity 12. The inner water tank 2 is installed in the first accommodating cavity 11, and the plurality of outer water tanks 3 are detachably installed in the second accommodating cavity 12 for communicating with the inner water tank 2.

[0032] Exemplarily, the water supply structure can be used in the cooling fan 100, which may include a fan and a wet curtain located on the air inlet side of the fan. The inner water tank 2 can supply water to the wet curtain. It is understood that the water supply structure can also be used in other structures that require water supply, and this application does not limit this. Furthermore, for the purpose of facilitating the description of the water supply structure of this application, the water supply structure is used in the cooling fan 100 as an example for auxiliary explanation, and no limitation is made in the following example.

[0033] The cooling fan 100 works on the principle of water evaporation and heat absorption, which lowers the air temperature through physical means. It also has ventilation and humidification functions. Specifically, the water in the inner water tank 2 of the cooling fan 100 can be pumped to the wet curtain. For example, the inner water tank 2 can be located at the bottom of the cooling fan 100, and the wet curtain can be located at the top of the cooling fan 100. The wet curtain is generally made of honeycomb, fiber, or paper material, which makes it highly absorbent. When the fan is running, it can draw in hot air from the environment. The hot air flows over the surface of the wet curtain, and the water can evaporate relatively quickly after absorbing heat, which lowers the temperature of the air flowing over the wet curtain. The cooled air can be blown into the room by the fan, while increasing the air humidity and achieving a local cooling effect.

[0034] The water in the inner water tank 2 can be replenished by the outer water tank 3. Specifically, after the outer water tank 3 is filled with water, it can be installed in the second accommodating cavity 12. Then, the outer water tank 3 can be connected to the inner water tank 2, and the water in the outer water tank 3 can flow into the inner water tank 2, thereby replenishing the water in the inner water tank 2. Furthermore, multiple outer water tanks 3 can be provided. Thus, when the water in one outer water tank 3 is used up, other outer water tanks 3 can be installed in the second accommodating cavity 12, and then the outer water tank 3 with used water can be removed from the second accommodating cavity 12, thereby achieving uninterrupted replenishment of water to the inner water tank 2.

[0035] Of course, two or more external water tanks 3 can also be installed in the second accommodating cavity 12 at the same time, thereby improving the efficiency of replenishing the water in the internal water tank 2.

[0036] Furthermore, since the outer water tank 3 is detachable, it can be filled with water and placed inside the refrigerator. When the cooling fan 100 is used, one outer water tank 3 can be installed in the second accommodating cavity 12, allowing the cold water in the outer water tank 3 to flow smoothly into the inner water tank 2. This enables the water pump to deliver cold water to the evaporative cooling pad, allowing the cold water on the pad to better absorb the heat from the hot air flowing over its surface, further reducing the air temperature. After the cold water in this outer water tank 3 is used up, another outer water tank 3 can be installed in the second accommodating cavity 12, and then the empty outer water tank 3 can be removed from the second accommodating cavity 12, thus achieving continuous replenishment of water to the inner water tank 2.

[0037] The ice packs used in the relevant technology need to be placed into the water tank of the cooling fan 100 after being removed from the refrigerator. Therefore, the size of the ice packs is generally limited, and the cooling capacity that the ice packs can provide to the water tank is generally limited. Even if multiple ice packs are replaced in a cyclical manner, the cooling capacity that a single ice pack can provide is limited. Even if multiple ice packs are placed into the water tank at the same time, it is complicated to take out multiple ice packs. In addition, the ice packs will occupy the space of the water in the water tank, which will easily increase the frequency of adding water to the water tank.

[0038] This invention eliminates the ice crystal box, and the outer water tank 3 is directly detachable, allowing it to be placed in the refrigerator, thus replacing the function of the ice crystal box. Furthermore, the size of the outer water tank 3 can be designed to be larger, providing sufficient cooling capacity. The water in the outer water tank 3 can supply water to the evaporative cooling pad, which not only does not reduce the water capacity but can also increase the water capacity to a certain extent, thereby effectively reducing the frequency of water addition.

[0039] Moreover, the outer water tank 3 can be directly installed inside the housing 1 of the cooling fan 100, which is simple and convenient to install and remove, thus improving the efficiency of the installation and removal of the outer water tank 3. In addition, the housing 1 can better protect the outer water tank 3, reducing the risk of damage to the outer water tank 3 during the use of the cooling fan 100, and also reducing the diffusion of the cold energy of the outer water tank 3 to the outside, thereby increasing the amount of cold energy provided by the outer water tank 3 to the inner water tank 2 to a certain extent, making the water supply structure 100 cooler when blowing air.

[0040] According to the water supply structure of this utility model embodiment, the outer water tank 3 is detachable, allowing it to be placed in a refrigerator to replace the function of the ice crystal box. Furthermore, the size of the outer water tank 3 can be designed to be large enough to provide sufficient cooling capacity. The water in the outer water tank 3 can supply water to the wet curtain, which not only does not reduce the water volume but can also increase the water volume to a certain extent, thereby reducing the frequency of water addition.

[0041] In some embodiments of this utility model, such as Figures 1-3 As shown, the inner water tank 2 has an opening 21 facing upwards, and the outlets of multiple outer water tanks 3 are all opposite to the opening 21.

[0042] like Figures 1-3 As shown, the inner water tank 2 is constructed as a trough-shaped structure with the opening facing upwards. This allows the water flowing out of the outlets of multiple outer water tanks 3 to enter the inner water tank 2 through the opening 21. Furthermore, the water pump can effectively pump the water in the inner water tank 2 upwards to the wet curtain. In addition, this design of the inner water tank 2 can reduce the structural complexity of the inner water tank 2, thereby reducing the production difficulty and production cost of the inner water tank 2.

[0043] In addition, the inner water tank 2 is constructed as an upward-opening trough-shaped structure, which can reduce the difficulty of aligning the outlets of multiple outer water tanks 3 with the same open opening 21. This can facilitate the layout of multiple outer water tanks 3, thereby reducing the difficulty of arranging multiple outer water tanks 3 and reducing the overall production and assembly costs of the cooling fan 100.

[0044] In some embodiments of this utility model, such as Figure 2 As shown, multiple external water tanks 3 are arranged sequentially along the first direction X. Thus, the arrangement of multiple external water tanks 3 is relatively compact and neat, which can reduce the space occupied by multiple external water tanks 3, which can facilitate the arrangement of the various components of the cooling fan 100, and can also facilitate the miniaturization design of the cooling fan 100.

[0045] In some embodiments of this invention, at least one of the two opposing sidewalls of the outer water tank 3 is recessed inward to form a gripping groove 30.

[0046] refer to Figure 1 As shown, the rear wall of the housing 1 is provided with an opening of the second receiving cavity 12. The outer water tank 3 can be inserted into the second receiving cavity 12 through the opening, and the outer water tank 3 can also be easily removed from the second receiving cavity 12 through the opening. The disassembly and assembly are simple and convenient.

[0047] In this example, the side wall of the outer water tank 3 is recessed inward to form a grip groove 30, which makes it easy for the user to hold it by hand, thus making it easier for the user to disassemble and assemble the outer water tank 3. This is simple and convenient and can improve the efficiency of disassembling and assembling the outer water tank 3.

[0048] For example, the water supply structure may also include a cover plate 7, which is detachably installed at the opening, thereby providing better protection for the external water tank 3.

[0049] For example, the grip groove 30 may be provided on only one side wall of the outer water tank 3 or on both side walls of the outer water tank 3, and the present invention does not limit this. Furthermore, the grip grooves 30 provided on the two side walls of the outer water tank 3 are exactly the same in size and shape, and may be symmetrically arranged on the two side walls of the outer water tank 3 along a symmetrical plane, so that the user can better grip it with his bare hands.

[0050] In some embodiments of this utility model, such as Figure 1 , Figures 4-6 As shown, a support frame 4 is provided inside the second accommodating cavity 12, and the support frame 4 is used to support the outer water tank 3.

[0051] In other words, when the outer water tank 3 is installed in the second accommodating cavity 12, the outer water tank 3 can be placed on the support frame 4. It should be noted that the outer water tank 3 only abuts against the support frame 4. Of course, the outer water tank 3 can also be detachably installed on the support frame 4. In this example, the support frame 4 supports the outer water tank 3, so that the outer water tank 3 is less likely to put pressure on the inner water tank 2, thus protecting both the outer water tank 3 and the inner water tank 2.

[0052] In addition, the outer water tank 3 can be placed on the support frame 4, which can also better arrange the relative positions of the inner water tank 2 and the outer water tank 3. For example, the outer water tank 3 can be partially inserted into the inner water tank 2 with the outlet facing the bottom. The water in the outer water tank 3 can automatically enter the inner water tank 2 by the pressure difference between the liquid levels of the outer water tank 3 and the inner water tank 2. By controlling the relative positions of the inner water tank 2 and the outer water tank 3 through the support frame 4, the liquid level of the inner water tank 2 can be better controlled, so that the water in the inner water tank 2 can be replenished in a timely manner. This can prevent the water in the inner water tank 2 from being too low during the replacement of the outer water tank 3, which would prevent the water on the wet curtain from being ineffectively supplied and thus affect the cooling effect of the cooling fan 100.

[0053] In some embodiments of this utility model, such as Figures 4-8As shown, the outer water tank 3 includes a main body 31 and a mating part 32 connected to one end of the main body 31. The outlet of the outer water tank 3 is located in the mating part 32. The main body 31 is supported by a support frame 4. The support frame 4 has a through hole 411. The mating part 32 passes through the through hole 411 so that the outer water tank 3 communicates with the inner water tank 2.

[0054] In other words, the outer water tank 3 can be well connected to the support frame 4 through the mating part 32, which can facilitate the rapid assembly between the outer water tank 3 and the support frame 4. Furthermore, the mating part 32 passes through the through hole 411 of the support frame 4, making the communication path between the outer water tank 3 and the inner water tank 2 more direct, which can reduce the flow resistance of water from the outer water tank 3 to the inner water tank 2, so that the water can flow from the outer water tank 3 into the inner water tank 2 more smoothly.

[0055] Furthermore, the mating part 32 is inserted through the through hole 411. The through hole 411 can effectively limit the position of the mating part 32, so that the support frame 4 can effectively limit the position of the outer water tank 3 through the through hole 411. This can reduce the movement of the outer water tank 3 due to its own weight or shaking, thereby affecting the water supply from the outer water tank 3 to the inner water tank 2.

[0056] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, in the direction from the body part 31 to the mating part 32, the mating part 32 is constructed as a cone with a gradually decreasing cross section, and the water outlet is located at the end of the mating part 32 away from the body part 31.

[0057] In other words, when the conical mating part 32 mates with the through hole 411, the mating part 32 can easily extend into the through hole 411. The inclined peripheral wall 422 of the mating part 32 can guide the mating part 32, so that the mating part 32 can be well assembled into the set position. For example, the flow channel inside the mating part 32 can also be conical. Thus, when the water is transported from the outer water tank 3 to the inner water tank 2, a convergence effect can be formed, which can better improve the water output efficiency.

[0058] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the water outlet is provided with a water-blocking component 5, which is suitable for closing the water outlet. The support frame 4 includes a support plate 41 and a bearing ring 42. The support plate 41 has a through hole 411. The bearing ring 42 is connected to the lower side of the support plate 41. The bearing ring 42 includes a bottom wall 421 and a peripheral wall 422 connected to the outer periphery of the bottom wall 421. The bottom wall 421 and / or the peripheral wall 422 have water passage holes 43. The upper end of the peripheral wall 422 surrounds the outer periphery of the through hole 411. The bottom wall 421 is provided with a water guide 4211, which is suitable for cooperating with the water-blocking component 5 to guide the water outlet.

[0059] In other words, the addition of a water-blocking component 5 to the outlet enables the outlet to close automatically, preventing water leakage when the outer water tank 3 is idle or disassembled, thus improving safety. The design of the support plate 41 and the bearing ring 42 of the support frame 4 not only ensures the stable installation of the mating part 32 through the through hole 411, but also utilizes the peripheral wall 422 of the bearing ring 42 to form a surrounding protection, which can effectively reduce water overflow. The water passage holes 43 on the bottom wall 421 and the peripheral wall 422 allow water to flow well into the inner water tank 2 when the water-blocking component 5 is opened. The design of the water guide component 4211 and the water baffle component 5 allows the outlet to be opened well during assembly without additional operation, simplifying the usage process. At the same time, it ensures reliable closure in the non-assembled state, achieving the effect of "assembly conduction and separation closure". It is highly practical and reliable.

[0060] In some embodiments of this utility model, such as Figure 7 and Figure 8 As shown, the water-blocking component 5 includes: a sealing cover 51, an elastic element 52, and a sealing gasket 53. The sealing cover 51 is detachably installed at the water outlet. The sealing cover 51 has a cover hole. The sealing gasket 53 is disposed in the cover hole. The elastic element 52 is connected between the sealing cover 51 and the sealing gasket 53 to keep the sealing gasket 53 in a closed state that closes the cover hole. The water-guiding component 4211 is adapted to abut against the sealing gasket 53 to overcome the elastic force of the elastic element 52, so that the sealing gasket 53 opens the cover hole.

[0061] In other words, the combined design of the sealing cover 51, elastic element 52, and sealing gasket 53 of the water-blocking component 5, along with the abutting function of the water guide element 4211, can effectively achieve the automatic opening and closing of the water-blocking component 5. The detachable sealing cover 51 facilitates future maintenance and replacement. The elastic element 52, through continuous elasticity, ensures that the sealing gasket 53 tightly seals the cover hole, preventing water leakage in non-working conditions and improving the water storage reliability of the outer water tank 3. When the water guide element 4211 abuts against the sealing gasket 53, it can effectively overcome the elasticity to push the sealing gasket 53 to open the channel. This structure combines active sealing and passive opening characteristics, and the state switching can be completed without additional operation, making it suitable for automated assembly scenarios. For example, a sealing ring 54 can be provided between the sealing cap 51 and the water outlet, and the sealing ring 54 can be made of rubber.

[0062] In some embodiments of this application, the mating part 32 has an external thread 61, and the through hole 411 has an internal thread that mates with the external thread 61.

[0063] In other words, combining Figure 5 and Figure 8The mating design of the external thread 61 of the mating part 32 and the internal thread of the through hole 411 can effectively improve the connection stability between the outer water tank 3 and the support frame 4, reduce the loosening and displacement of the outer water tank 3 due to vibration during use, and enhance the firmness between the outer water tank 3 and the support frame 4. In addition, the threaded connection can better control the assembly depth of the outer water tank 3, allowing the water guide 4211 and the water baffle 5 to fit well together. Moreover, the disassembly and assembly operations are simple and can be completed without additional tools, which can greatly improve the convenience of maintenance and is conducive to long-term repeated use.

[0064] This utility model also proposes a cooling fan 100 with a water supply structure.

[0065] According to the refrigeration fan 100 of this utility model embodiment, the refrigeration fan 100 includes a fan, a wet curtain, and a water supply structure as described in the above embodiment. The wet curtain is located on the air inlet side of the fan. By providing the water supply structure as described in the above embodiment, the ice crystal box can be eliminated. The outer water tank 3 can be directly and detachably placed in the refrigerator, thereby replacing the function of the ice crystal box. Furthermore, the size of the outer water tank 3 can be designed to be large enough to provide sufficient cooling capacity. The water in the outer water tank 3 can supply water to the wet curtain, which not only does not reduce the water volume but can also increase the water volume to a certain extent, thereby effectively reducing the frequency of water addition.

[0066] In some embodiments of this utility model, such as Figure 1 , Figure 7 and Figure 8 As shown, the cooling fan 100 also includes a guide member 8, which is disposed in the second accommodating cavity 12 below the wet curtain. The guide member 8 has a guide slope 81 for guiding the water dripping from the wet curtain to the inner water tank 2. The guide member 8 and the housing 1 define an accommodating cavity for accommodating the outer water tank 3. The outer water tank 3 is provided with a relief slope 33 corresponding to the guide slope 81.

[0067] In other words, the guide slope 81 of the guide component 8 can better receive the water dripping from the wet curtain, reducing the water from flowing randomly inside the shell 1. This reduces the impact of the water on the environment inside the shell 1 and on the components inside the shell 1. At the same time, the water entering the inner water tank 2 can be reused, reducing the frequency of water replenishment to the inner water tank 2 and improving the utilization of the water.

[0068] Furthermore, combined Figure 1 As shown, the flow guide 8 is arranged in a semi-enclosed manner in the second accommodating cavity 12, thereby forming an accommodating cavity with the shell 1 to accommodate the outer water tank 3. This can improve the structural compactness between the flow guide 8 and the outer water tank 3, thereby improving the space utilization rate.

[0069] The avoidance slope 33 provided in the outer water tank 3 can better avoid the position of the guide slope 81, which can better reduce the interference between the outer water tank 3 and the guide component 8, and can also facilitate the installation of the outer water tank 3.

[0070] For example, the flow guide 8 may include a flow guide plate, at least a portion of the upper end of the flow guide plate being inclined to form a flow guide slope 81.

[0071] Other configurations and operations of the water supply structure 100 according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0072] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water supply structure for a cooling fan, characterized in that, include: A housing having a first accommodating cavity and a second accommodating cavity; An inner water tank is installed in the first accommodating cavity and is adapted to supply water to the wet curtain. Multiple external water tanks are detachably installed in the second accommodating cavity for communication with the inner water tank.

2. The water supply structure according to claim 1, characterized in that, The first accommodating cavity is located below the second accommodating cavity, the inner water tank has an opening facing upwards, and the outlets of the plurality of outer water tanks are all opposite to the opening.

3. The water supply structure according to claim 1, characterized in that, The multiple external water tanks are arranged sequentially along the first direction.

4. The water supply structure according to claim 1, characterized in that, At least one of the two opposing sidewalls of the outer water tank is recessed inward to create a gripping groove.

5. The water supply structure according to claim 1, characterized in that, The second accommodating cavity is provided with a support frame, which is used to support the outer water tank.

6. The water supply structure according to claim 5, characterized in that, The outer water tank includes a main body and a mating part connected to one end of the main body. The outlet of the outer water tank is located in the mating part. The main body is supported by the support frame. The support frame has a through hole. The mating part passes through the through hole to allow the outer water tank to communicate with the inner water tank.

7. The water supply structure according to claim 6, characterized in that, In the direction from the body portion to the mating portion, the mating portion is constructed as a tapered shape with a gradually decreasing cross-section, and the water outlet is located at the end of the mating portion away from the body portion.

8. The water supply structure according to claim 6, characterized in that, The outlet is provided with a water-blocking component, which is adapted to close the outlet. The support frame includes a support plate and a bearing ring. The support plate has the through hole. The bearing ring is connected to the lower side of the support plate. The bearing ring includes a bottom wall and a peripheral wall connected to the outer periphery of the bottom wall. The bottom wall and / or the peripheral wall has a water passage hole. The upper end of the peripheral wall surrounds the outer periphery of the through hole. The bottom wall is provided with a water guide component, which is adapted to cooperate with the water-blocking component to open the outlet.

9. The water supply structure according to claim 8, characterized in that, The water-blocking component includes: a sealing cap, an elastic element, and a sealing gasket. The sealing cap is detachably installed at the water outlet. The sealing cap has a cover hole. The sealing gasket is disposed in the cover hole. The elastic element is connected between the sealing cap and the sealing gasket to keep the sealing gasket in a closed state that closes the cover hole. The water-guiding component is adapted to abut against the sealing gasket to overcome the elastic force of the elastic element, so that the sealing gasket opens the cover hole.

10. A cooling fan, characterized in that, include: A fan, an evaporative cooling pad located on the air inlet side of the fan, and a water supply structure according to any one of claims 1-9, wherein the water supply structure is used to supply water to the evaporative cooling pad.

11. The cooling fan according to claim 10, characterized in that, Also includes: A water guiding component is disposed in the second receiving cavity below the evaporative cooling pad. The water guiding component has a water-guiding slope for guiding the water dripping from the evaporative cooling pad to the inner water tank. The water guide and the housing define a receiving cavity for accommodating the outer water tank, and the outer water tank is provided with a relief slope corresponding to the water guide slope.

Images