CN113405179A

CN113405179A - Cooling fan

Info

Publication number: CN113405179A
Application number: CN202110743021.2A
Authority: CN
Inventors: 邱水兵; 傅程; 康瑞祥; 罗伟锦; 曾庆河; 魏来; 潘文康; 罗攀; 韩平英
Original assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-09-17

Abstract

The invention discloses a cooling fan which comprises a shell, a first water tank and a semiconductor refrigerating device, wherein the shell is provided with a refrigerating box, and the first water tank is communicated with the refrigerating box to supply water to the refrigerating box. The semiconductor refrigerating device comprises a hot end heat exchanger and a semiconductor refrigerating sheet, the hot end heat exchanger is in heat conduction connection with the hot end of the semiconductor refrigerating sheet, and the cold end of the semiconductor refrigerating sheet is in heat conduction connection with the refrigerating box so as to transfer cold energy generated by the semiconductor refrigerating sheet to the refrigerating box. According to the technical scheme, the use diversity of the cooling fan can be improved.

Description

Cooling fan

Technical Field

The invention relates to the technical field of fans, in particular to a cooling fan.

Background

At present, the thermantidote on the market is mainly for direct evaporation formula thermantidote, generally makes hot-air pass through evaporation cooling medium (wet curtain), fully carries out the heat exchange with water in evaporation cooling medium, then evaporates the heat absorption and the cooling obtains cool air, and cool air is sent out by the fan to reach the purpose of cooling.

Traditional thermantidote system is furnished with the ice crystal box usually for improving refrigeration cooling effect, uses in putting into thermantidote's water tank after freezing the ice crystal box through the refrigerator. However, in some environments without a refrigerator, the ice crystal box cannot be frozen, so that the refrigeration and cooling effects cannot be improved through the ice crystal box, and the use by a user is very inconvenient.

Disclosure of Invention

The invention mainly aims to provide a cooling fan, and aims to improve the use diversity of the cooling fan.

In order to achieve the above object, the present invention provides a cooling fan, comprising:

a housing provided with a refrigeration cassette;

a first water tank in communication with the refrigeration cassette to supply water to the refrigeration cassette; and

the semiconductor refrigerating device comprises a hot end heat exchanger and a semiconductor refrigerating sheet, wherein the hot end heat exchanger is in heat conduction connection with the hot end of the semiconductor refrigerating sheet, and the cold end of the semiconductor refrigerating sheet is in heat conduction connection with the refrigerating box so as to transfer cold energy generated by the semiconductor refrigerating sheet to the refrigerating box.

Optionally, a containing groove is formed in the upper end of the shell, the refrigeration box is provided with a refrigeration box containing cavity, and the refrigeration box containing cavity is communicated with the containing groove.

So enlarged the refrigeration space of refrigeration box in other words to can be through refrigeration box and storage tank more ice crystal box or cold water of freezing, very big convenience of customers uses.

Optionally, the casing upper end is equipped with the top cap, the top cap is formed with the storage tank, the tank bottom wall of storage tank is equipped with the opening of stepping down, the refrigeration box is located the opening part of stepping down, just at least partly of refrigeration box is located the below of the groove diapire of storage tank.

So set up, be favorable to increasing the refrigeration space that storage tank and refrigeration box formed jointly, increased the capacity in refrigeration space to can hold more and treat the refrigeration thing, for example the user utilizes this refrigeration space freezing water or beverage etc. can supply the user to place more water or beverage etc..

Optionally, a cover plate is further arranged at the upper end of the shell, and the cover plate is movably mounted on the top cover to cover or open the accommodating groove.

So will refrigerate the top that the box set up the casing, can be convenient for the user to add water in the refrigeration box, very big convenience of customers uses.

Optionally, the thermantidote still includes the fixing base, the fixing base connect in the top cap, the fixing base has the installation cavity, the refrigeration box install in the installation cavity.

So can fix the refrigeration box at the opening part of stepping down through the fixing base, can avoid setting up connection structure on the refrigeration box, be favorable to simplifying the structure of refrigeration box.

Optionally, the fixing seat includes an annular inner plate, an annular outer plate disposed at the periphery of the annular inner plate with a spacer ring, and a heat insulation layer filled between the annular inner plate and the annular outer plate, and the inner side of the annular inner plate forms the installation cavity.

So can utilize the fixing base to block the cold volume of refrigeration box and give off outwards, reduce the cold volume loss of refrigeration box, promote the heat preservation effect of refrigeration box.

Optionally, the installation cavity is that both ends link up the setting, semiconductor refrigerating plant locates the fixing base is kept away from one side of the opening of stepping down, the cold junction butt of semiconductor refrigeration piece in the box bottom wall of refrigeration box.

So when the installation, can form an integral module with semiconductor refrigerating plant, fixing base and refrigeration box assembly earlier, this integral module installs in the top cap again, has greatly made things convenient for the equipment of thermantidote. When the semiconductor refrigerating device, the fixing seat and the refrigerating box are assembled to form the integral module, the contact tightness of the semiconductor refrigerating piece and the refrigerating box can be conveniently adjusted, so that the contact effect of the semiconductor refrigerating piece and the refrigerating box is better, and the heat conduction efficiency between the semiconductor refrigerating piece and the refrigerating box is higher.

Optionally, the fixing base is installed the back of storage tank groove diapire, follow on the direction of height of thermantidote, the box mouth that refrigeration box held the chamber is located under the opening of stepping down, refrigeration box holds the chamber and passes through the opening of stepping down with the storage tank intercommunication.

Optionally, a groove recessed towards the direction of the accommodating groove is formed in the bottom surface of the fixing seat, and the semiconductor refrigeration device is accommodated in the groove; and/or the presence of a gas in the gas,

the periphery of the upper end of the fixing seat is provided with a plurality of fixing lugs, and the fixing seat is connected with the bottom wall of the accommodating groove through the fixing lugs so as to fix the refrigeration box on the top cover.

When the semiconductor refrigerating device is accommodated in the groove, the semiconductor refrigerating device can not protrude outwards even if being installed on the fixing seat, so that the space is effectively saved, and the installation stability of the fixing seat is not influenced. When the fixing seat is connected with the bottom wall of the accommodating groove through the fixing lug so as to fix the refrigeration box on the top cover, the installation mode is simple, convenient and reliable.

Optionally, the box mouth department of refrigeration box locates the installation turn-ups outwards, the fixing base is equipped with the protruding muscle of installation towards the open-ended terminal surface of stepping down, the protruding muscle ring of installation is located the turn-ups's of installation periphery, the thermantidote still includes the sealing washer, the sealing washer is located the installation turn-ups of refrigeration box with between the top cap.

So can guarantee that fixing base and top cap are connected stably, also can guarantee that the sealing washer can be extruded between the installation turn-ups and the opening edge of stepping down the opening, guarantee sealed effect.

Optionally, a wet curtain assembly is arranged in the shell, an upper water port and a lower water port are respectively arranged on the bottom wall of the accommodating groove, the upper water port and the lower water port are respectively located on two opposite sides of the refrigeration box, the upper water port is communicated with the first water tank, and the lower water port is communicated with a water inlet end of the wet curtain assembly.

So be equivalent to regard as a part of first water tank to wet flow path between the curtain subassembly with the refrigeration box, can reduce the temperature of flowing through behind the refrigeration box to the temperature of wet curtain subassembly, promote wet curtain subassembly refrigeration effect.

Optionally, a flow guide structure is arranged on the bottom wall of the accommodating groove between the upper water port and the lower water port, and the flow guide structure is used for guiding water flowing into the upper water port to the refrigeration box so as to flow to the lower water port after passing through the refrigeration box.

So can guarantee just to flow to the mouth of a river down after the normal atmospheric temperature water that flows in from the mouth of a river flows through the refrigeration box to ensure that the normal atmospheric temperature water that flows in from the mouth of a river can mix with the cold water in the refrigeration box.

Optionally, the diversion structure includes two first separating ribs respectively disposed on two opposite sides of the abdicating opening, the two first separating ribs are both located between the upper nozzle and the lower nozzle, one end of each first separating rib is connected to the side wall of the groove of the accommodating groove, and the other end extends to the edge of the abdicating opening.

So make the simple structure of top cap, be favorable to simplifying the mould structure, reduce cost.

Optionally, the cooling fan further comprises a waterway conversion assembly, wherein the waterway conversion assembly is provided with a first interface, a second interface and a third interface, the first interface is communicated with the first water tank, the second interface is communicated with the water feeding port, and the third interface is communicated with the water inlet end of the wet curtain assembly;

the waterway conversion assembly is provided with a first working state and a second working state, and in the first working state, the first interface is communicated with the second interface and is disconnected with the third interface; in the second working state, the first interface is communicated with the third interface and is disconnected from the second interface.

So can be so that the thermantidote through refrigeration box refrigerated while, can make the thermantidote be in ordinary cold wind mode air supply, convenience of customers uses more.

Optionally, the cooling fan further comprises a controller, and the cooling fan has a third working state that the wet curtain assembly and the semiconductor refrigerating device work simultaneously; in the third working state, the controller is used for controlling the first interface and the second interface of the waterway conversion assembly to be communicated so as to guide the normal-temperature water of the first water tank into the refrigeration box; the controller is used for controlling the first interface and the third interface of the waterway conversion assembly to be communicated so as to guide the normal-temperature water of the first water tank to the wet curtain assembly after the water level in the refrigeration box reaches a preset water level; when the water temperature in the refrigeration box reaches a preset temperature, the first interface and the second interface of the waterway conversion assembly are controlled to be communicated, so that the normal-temperature water in the first water tank is guided into the refrigeration box and mixed with the cold water in the refrigeration box to flow to the wet curtain assembly.

So when making the normal atmospheric temperature water of first water tank directly lead the wet curtain subassembly through not freezing the box, can refrigerate the box alone through semiconductor refrigerating plant.

Optionally, the diversion structure is in form first water route and second water route in the storage tank, first water route certainly the mouth of a river extends to behind the refrigeration box down the mouth of a river, the second water route certainly the mouth of a river extends to along the tank bottom wall of storage tank down the mouth of a river, the thermantidote has first mode and second mode, the thermantidote is in open first water route under first mode, open the second water route under the second mode.

So under the condition that does not set up water route conversion subassembly, also can make the thermantidote be in ordinary cold wind mode air supply when through refrigeration box refrigeration. Avoid setting up water route conversion subassembly between first water tank and wet curtain subassembly, can reduce the interior pipeline structure of thermantidote.

Optionally, the diversion structure comprises a second spacer rib and a water blocking door, the second spacer rib is arranged on the bottom wall of the accommodating groove, and at least part of the second spacer rib is arranged around the edge of the abdicating opening; the second partition rib is provided with a first water passing port and a second water passing port, the first water passing port is arranged on one side, where the second partition rib is located, of the upper water gap so as to be communicated with the upper water gap, and the second water passing port is arranged on one side, where the second partition rib is located, of the lower water gap so as to be communicated with the lower water gap; the second separate the muscle with it crosses the water clearance to have between the groove lateral wall of storage tank, water blocking door movably install in cross the water clearance, in order to open or close cross the water clearance, the thermantidote is in under the first mode of operation, water blocking door closure cross the water clearance under the second mode of operation, water blocking door opens cross the water clearance.

Can avoid so setting up water route conversion subassembly between first water tank and wet curtain subassembly, can reduce the through structure in the thermantidote. When opening water clearance through the manger plate door, the normal atmospheric temperature water that can first water tank is through not freezing the box and direct direction wet curtain subassembly for the thermantidote is in ordinary cold wind mode, and makes the freezing box can refrigerate alone, also, under the condition that does not set up water route conversion subassembly, also can make the thermantidote be in ordinary cold wind mode air supply through freezing box refrigerated while, can make the thermantidote be in ordinary cold wind mode air supply. And when crossing the water clearance through the valve closure of keeping off the water, can make the rivers that flow in from the mouth of a river to the refrigeration box refrigeration, follow the refrigeration box again and flow to the mouth of a river down, finally flow to wet curtain subassembly heat transfer for the thermantidote is in low temperature air-out mode.

Optionally, the first water passing opening is higher than the water passing gap, and the second water passing opening is higher than the drain opening; and/or the groove bottom wall of the containing groove is gradually and downwards obliquely arranged in the direction from the upper water opening to the lower water opening.

Therefore, the structure of the flow guide structure is simple, the structure of the die can be simplified, and the cost is reduced.

Optionally, the first water passing opening is disposed between the water feeding opening and the water passing gap, a water baffle is disposed on a bottom wall of the accommodating groove, one end of the water baffle is connected to a side of the first water passing opening close to the water feeding opening, and the water baffle extends in an inclined manner in a direction away from the first water passing opening gradually in a direction in which the water feeding opening points to the water passing gap.

So can block the water that flows in from the water-feeding mouth of a river through the breakwater, avoid the water diameter direct flow that flows in from the water-feeding mouth of a river to first crossing the mouth of a river, only when the water break door closed crosses the water clearance, when the water level reaches first crossing mouth of a river department, the water just can follow the breakwater and first entering refrigeration box between crossing the water mouth.

Optionally, the thermantidote still includes the controller, the thermantidote has wet curtain subassembly with the third mode of semiconductor refrigerating plant simultaneous working, in third mode, the controller is used for control the manger plate door is closed cross the water clearance, in order to open first water route and with the normal atmospheric temperature water direction the refrigeration box, until after water level in the refrigeration box reaches and predetermines the water level, the controller is used for control the manger plate door is opened cross the water clearance, in order to open the second water route, work as after temperature in the refrigeration box reaches and predetermines the temperature, the controller is used for control the manger plate door is closed cross the water clearance, in order to open first water route and with the normal atmospheric temperature water with flow direction after the cold water in the refrigeration box mixes the wet curtain subassembly.

So when the normal atmospheric temperature water that makes first water tank does not pass through the refrigeration box and directly leads the wet curtain subassembly, can refrigerate alone the refrigeration box through semiconductor refrigerating plant, also promptly, under the condition that does not set up water route conversion subassembly, also can make the thermantidote through the refrigeration of refrigeration box, can make the thermantidote be in ordinary cold wind mode air supply.

Optionally, the tank bottom wall of the accommodating tank is provided with a water blocking partition rib, two ends of the water blocking partition rib are connected to the tank side wall of the accommodating tank, so as to form a water adding tank in a surrounding manner with the tank side wall of the accommodating tank, the water adding tank is provided with a water adding hole, and the water adding hole is communicated with the first water tank.

So be equivalent to establish the top at the thermantidote with the position of adding water of first water tank, avoid the user to bend over when adding water and squat the action such as down, the user operation of can being convenient for.

Optionally, the hot-end heat exchanger includes a hot-end heat exchange main body, the hot-end heat exchange main body is in heat conduction connection with the hot end of the semiconductor refrigeration sheet, the hot-end heat exchange main body is provided with a heat dissipation liquid channel, a hot-end inlet connected to one end of the heat dissipation liquid channel, and a hot-end outlet connected to the other end of the heat dissipation liquid channel, the hot-end inlet is used for inputting heat exchange liquid into the heat dissipation liquid channel, and the hot-end outlet is used for discharging the heat exchange liquid after heat exchange in the heat dissipation liquid channel.

When the hot end heat exchanger exchanges heat with the semiconductor refrigeration piece in a liquid cooling mode, the heat exchange efficiency between the hot end heat exchanger and the semiconductor refrigeration piece is improved, and the heat dissipation effect is improved.

Optionally, the hot end heat exchanger further comprises a hot end heat exchange water discharge and a heat dissipation fan assembly, the hot end outlet is communicated with the water inlet of the hot end heat exchange water discharge, the hot end inlet is communicated with the water outlet of the hot end heat exchange water discharge, the shell is provided with a heat dissipation cavity, the heat dissipation fan assembly and the hot end heat exchange water discharge are both arranged in the heat dissipation cavity, and the heat dissipation fan assembly is arranged on one side of the hot end heat exchange water discharge.

Therefore, the consumption of heat exchange liquid in the hot-end heat exchanger can be reduced, and resources are saved. And the air current can avoid air current and water contact at the in-process that the hot junction heat transfer log raft, and then can avoid the condition that increases steam in the air current when the air current passes through the hot junction heat exchanger, has avoided the condition that humidity increases in the heat dissipation air current promptly.

Optionally, the cooling fan further comprises a second water tank, and the hot end inlet is communicated with the hot end heat exchange water discharge through the second water tank.

So make the heat transfer water of hot junction heat exchanger can cyclic utilization, compare in the thermantidote that adopts wet curtain structure, so can reduce and add water number of times, the water economy resource.

Optionally, the second water tank is arranged in a containing groove of the top cover at the upper end of the shell; and/or the hot end heat exchange water discharge and the heat dissipation fan component are arranged at the bottom of the shell.

So after the water yield in the second water tank reduces, can convenience of customers adds water in to the second water tank, very big convenience of customers uses.

Optionally, the first water tank is arranged at the lower part in the shell, the heat dissipation cavity is arranged at the lower part in the shell and is located at one side of the first water tank, the lower part of the shell is provided with a first air inlet and a first air outlet which are communicated with the heat dissipation cavity, and the heat dissipation fan assembly is arranged between the first air inlet and the hot-end heat exchange water discharge.

So can reduce the focus of thermantidote for the thermantidote during operation is more stable.

Optionally, the first water tank is located in the front of the air outlet direction of the cooling fan, the heat dissipation cavity is arranged at the rear of the cooling fan, the number of the first air inlets is two, the two first air inlets are located on two sides of the hot end heat exchange water discharge, and the first air outlet is located at the rear of the cooling fan.

Two first air inlets are arranged on two sides of the hot end heat exchange water discharge device, so that the fan can flow towards the surface of the hot end heat exchange water discharge device from the air sucked by the two first air inlets, the heat is taken away and then the air is discharged from the first air outlet at the rear part, and the first air outlet is used for exhausting air towards the rear part to avoid blowing hot air blown out from the first air outlet to a user.

Optionally, a second air inlet, a second air outlet, and a cross-flow fan are disposed on the casing, the cross-flow fan is disposed between the second air inlet and the second air outlet to draw air from the second air inlet and discharge the air from the second air outlet, the cross-flow fan is disposed above the first water tank, the second air inlet is disposed above the first air inlet, a wet curtain assembly of the cooling fan is disposed between the cross-flow fan and the second air inlet, and the refrigeration box is disposed at the top of the casing.

So set up, can avoid hot junction heat transfer log raft and heat dissipation fan subassembly heat dissipation to receive the cross-flow fan influence of thermantidote moreover, the radiating effect is better, and overall layout is also more reasonable for the structure of thermantidote is compacter.

According to the technical scheme, the semiconductor refrigerating device and the refrigerating box are arranged in the cooling fan, so that the refrigerating box is in heat conduction connection with the cold end of the semiconductor refrigerating sheet, the temperature of the refrigerating box can be reduced, the refrigerating box forms a refrigerator structure, and ice making or food material refrigerating can be carried out by utilizing the refrigerating box. Even in some environments that do not have the refrigerator, also can make ice or cold-stored edible material through the refrigeration box on the thermantidote, the user can also put into first water tank with the ice crystal box of refrigeration box freezing or the ice-cube that will refrigerate the box and make to improve thermantidote refrigeration cooling effect. The thermantidote in this scheme can be from taking refrigeration system ice function promptly, and very big convenience of customers uses in the environment that does not have the refrigerator, has greatly promoted thermantidote and has used the variety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a cooling fan according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at X-X of the cooling fan of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic structural view of the top cover and the refrigeration cassette of FIG. 2 illustrating a cooling fan according to yet another embodiment of the present invention;

FIG. 5 is an exploded view of the lid, refrigeration cassette and mounting base of FIG. 2 illustrating a further embodiment of a cooling fan of the present invention;

FIG. 6 is an exploded view of the mounting base and refrigeration cassette of FIG. 5; the structure of the second embodiment of the subject of the invention is shown schematically;

FIG. 7 is a schematic diagram of a heat dissipation flow path of the hot-end heat exchanger of FIG. 2;

FIG. 8 is a schematic structural view of a top cover and a refrigeration cassette in another embodiment of a cooling fan according to the present invention;

fig. 9 is a top view of the lid and refrigeration cassette of fig. 8;

FIG. 10 is a schematic view of the water blocking door of FIG. 9 closing the water gap;

FIG. 11 is a view of the cross-sectional view of FIG. 10 at Y-Y rotated 90 counterclockwise;

fig. 12 is a schematic structural view of a top cover and a refrigeration cassette in another embodiment of the cooling fan of the present invention;

fig. 13 is a schematic structural view of the back of the cooling fan in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a cooling fan.

In an embodiment of the present invention, referring to fig. 1 to 3, the cooling fan includes a housing 10, a first water tank 81 and a semiconductor cooling device 40, the housing 10 is provided with a cooling box 20, and the first water tank 81 is communicated with the cooling box 20 to supply water to the cooling box 20. The semiconductor refrigerating device 40 comprises a hot end heat exchanger 41 and a semiconductor refrigerating sheet 42, the hot end heat exchanger 41 is in heat conduction connection with the hot end of the semiconductor refrigerating sheet 42, and the cold end of the semiconductor refrigerating sheet 42 is in heat conduction connection with the refrigerating box 20 so as to transfer the cold energy generated by the semiconductor refrigerating sheet 42 to the refrigerating box 20.

Specifically, when starting semiconductor refrigerating plant 40 work, semiconductor refrigeration piece 42 lets in behind the electric current, the cold junction temperature of semiconductor refrigeration piece 42 reduces and produces cold volume, the hot junction temperature of semiconductor refrigeration piece 42 rises and produces heat, when being connected through the cold junction heat-conduction with refrigeration box 20 with semiconductor refrigeration piece 42, can make the cold junction low temperature of semiconductor refrigeration piece 42 transmit to refrigeration box 20, thereby can reduce the temperature of refrigeration box 20, when so adding water in refrigeration box 20, can reduce the temperature of water in refrigeration box 20, can utilize semiconductor refrigerating plant 40 and refrigeration box 20 ice making or cold-stored edible material, if put into refrigeration box 20 with beverage, milk products and refrigerate or keep fresh etc..

In this embodiment, the cooling fan further includes a cross-flow fan 60 and an air guide assembly 70, the casing 10 is provided with a second air inlet 103 and a second air outlet 104 corresponding to the cross-flow fan 60, the second air outlet 104 is communicated with an air outlet side of the cross-flow fan 60, and the second air inlet 103 is communicated with an air inlet side of the cross-flow fan 60, so that when the cross-flow fan 60 works, air outside the casing 10 can enter from the second air inlet 103 and be blown out toward the second air outlet 104 under the action of the cross-flow fan 60, thereby realizing air supply. The air guide assembly 70 is disposed between the air wheel assembly and the second air outlet 104, and the air guide assembly 70 is configured to guide out air flow blown out from the second air outlet 104 toward two sides of the cooling fan, so as to increase an air supply area.

According to the technical scheme, the semiconductor refrigerating device 40 and the refrigerating box 20 are arranged in the cooling fan, so that the refrigerating box 20 is in heat conduction connection with the cold end of the semiconductor refrigerating sheet 42, the temperature of the refrigerating box 20 can be reduced, the refrigerating box 20 forms a refrigerator structure, and ice can be made by using the refrigerating box 20. Even in some environments that do not have the refrigerator, also can make ice through refrigeration box 20 on the thermantidote, the user can put into first water tank 81 with refrigeration box 20 freezing ice crystal box or the ice-cube that will refrigerate box 20 and make to improve thermantidote refrigeration cooling effect. The thermantidote in this scheme can be from taking refrigeration system ice function promptly, and very big convenience of customers uses in the environment that does not have the refrigerator, has increased the multi-functional usage of thermantidote.

To ensure the thermal conductivity of the refrigeration cassette 20, in one embodiment, the refrigeration cassette 20 is made of metal. Specifically, the refrigeration cassette 20 is made of a metal with good thermal conductivity, for example, the material of the refrigeration cassette 20 may be aluminum, aluminum alloy, copper or copper alloy, etc. Of course, in other embodiments, the refrigeration cassette 20 may be made of a composite material with good thermal conductivity.

Referring to fig. 2 to 6, in an embodiment, the housing 10 is provided with a receiving groove 111 at an upper end thereof, the refrigeration cassette 20 has a refrigeration cassette receiving cavity 22 with a cassette opening, the refrigeration cassette receiving cavity 22 is used for receiving water, ice or food materials to be refrigerated, and the refrigeration cassette receiving cavity 22 is communicated with the receiving groove 111. I.e., the container 111 and the inside space of the refrigeration cassette 20 together form a space. So the refrigerating space of the refrigerating box 20 is enlarged equivalently, more ice crystal boxes or cold water can be frozen through the refrigerating box 20 and the accommodating groove 111, and the use is greatly facilitated for users. Of course, in other embodiments, the accommodating groove 111 may not be provided.

In an embodiment, a top cover 11 and a cover plate 13 are disposed at the upper end of the housing 10, the top cover 11 is formed with a receiving groove 111, and the cover plate 13 is movably mounted on the top cover 11 to close or open the receiving groove 111. Specifically, the cover plate 13 is rotatably mounted to the top cover 11 to cover or uncover the accommodating groove 111, and when the cover plate 13 covers the accommodating groove 111, the accommodating groove 111 and the box-inside space of the refrigeration box 20 together form a space. So set up the top of casing 10 with refrigeration box 20, can be convenient for the user to add water in refrigeration box 20, very big convenience of customers uses. Of course, in other embodiments, the refrigeration cassette 20 may be drawably mounted to a side wall of the housing 10. In addition, in other embodiments, the cover plate 13 may be detachably or slidably mounted on the top cover 11 to cover or open the receiving groove 111.

In one embodiment, the bottom wall of the accommodating cavity 111 is provided with a relief opening 112, the refrigeration cassette 20 is disposed at the relief opening 112, and at least a portion of the refrigeration cassette 20 is located below the bottom wall of the accommodating cavity 111. In a more preferred embodiment, the refrigeration cassette 20 is entirely disposed below the accommodating groove 111 and is communicated with the accommodating groove 111 through the relief opening 112. That is, the refrigeration cassette 20 is disposed below the abdicating opening 112, and the cassette opening of the refrigeration cassette 20 is installed at the abdicating opening 112 so as to communicate with the accommodating groove 111 through the abdicating opening 112. So set up, be favorable to increasing the refrigeration space that storage tank 111 and refrigeration box 20 formed jointly, increased the capacity in refrigeration space to can hold more and wait to refrigerate the thing, for example the user utilizes this refrigeration space freezing water or beverage etc. can supply the user to place more water or beverage etc.. In this embodiment, the relief opening 112 is sized and shaped to correspond to the size and shape of the opening of the refrigeration cassette 20. Of course, in other embodiments, the size of the opening of the refrigeration cassette 20 can be made smaller or larger than the size of the relief opening 112. In addition, in other embodiments, the upper end portion of the refrigeration cassette 20 may also be inserted into the accommodating groove 111 or the refrigeration cassette 20 may be entirely placed in the accommodating groove 111.

In an embodiment, the cooling fan further includes a fixing seat 30, the fixing seat 30 is connected to the top cover 11, the fixing seat 30 has a mounting cavity, and the refrigeration box 20 is mounted in the mounting cavity. Particularly, fixing base 30 is installed in the below of opening 112 of stepping down, also be the back of installing at storage tank 111 trough bottom wall, the installation cavity has the installation opening of opening 112 of stepping down towards, when installing refrigeration box 20 in the installation cavity, the box mouth of refrigeration box 20 is located the installation opening part, in the direction of height of thermantidote, refrigeration box appearance chamber 22 is located under opening 112 of stepping down, and refrigeration box 20 box mouth size and the unanimity of opening 112 of stepping down and both positions are just right on the direction of height of thermantidote, water in storage tank 111 can flow into in box appearance chamber 22 from refrigeration box 20 box mouth through opening 112 of stepping down. During the installation, can install refrigeration box 20 in the installation cavity earlier, install refrigeration box 20 and fixing base 30 in top cap 11 together again, so can fix refrigeration box 20 in the opening 112 department of stepping down through fixing base 30, can avoid setting up connection structure on refrigeration box 20, be favorable to simplifying the structure of refrigeration box 20. Of course, in other embodiments, the fixing seat 30 may not be provided, and the refrigeration cassette 20 may be connected to the top cover 11.

In an embodiment, the mounting cavity is through-arranged at two ends, the semiconductor refrigeration device 40 is disposed at the bottom of the fixing seat 30 far away from the abdicating opening 112, and the cold end of the semiconductor refrigeration sheet 42 abuts against the bottom wall of the refrigeration box 20. So when the installation, can assemble semiconductor refrigerating plant 40, fixing base 30 and refrigeration box 20 earlier and form an integral module, this integral module is installed in top cap 11 again, has greatly made things convenient for the equipment of thermantidote. When the semiconductor refrigerating device 40, the fixing seat 30 and the refrigerating box 20 are assembled to form an integral module, the contact tightness between the semiconductor refrigerating sheet 42 and the refrigerating box 20 can be conveniently adjusted, so that the contact effect between the semiconductor refrigerating sheet 42 and the refrigerating box 20 is better, and the heat conduction efficiency between the semiconductor refrigerating sheet 42 and the refrigerating box 20 is higher. In a more preferred embodiment, the bottom surface of the fixing base 30 is provided with a groove 36 recessed towards the receiving groove 111, and the semiconductor refrigeration device 40 is received in the groove 36, so that the semiconductor refrigeration device does not protrude outwards even if the semiconductor refrigeration device is mounted on the fixing base 30, thereby effectively saving space and not affecting the mounting stability of the fixing base 30.

In an embodiment, the semiconductor refrigeration device 40 further includes a hot end fixing plate 43, and the hot end fixing plate 43 is disposed on a side of the hot end heat exchanger 41 away from the semiconductor refrigeration sheet 42 and connected to the fixing base 30. It is equivalent to hot end heat exchanger 41 and presss from both sides and establish between hot end fixed plate 43 and fixing base 30, so set up, can reduce and even can avoid setting up connection structure on hot end heat exchanger 41, and then be favorable to simplifying hot end heat exchanger 41's structure, and through the structure of hot end fixed plate 43 and fixing base 30 centre gripping hot end heat exchanger 41, can make hot end fixed plate 43 compress tightly hot end heat exchanger 41 and semiconductor refrigeration piece 42, also can compress tightly semiconductor refrigeration piece 42 and refrigeration box 20, thereby can guarantee between semiconductor refrigeration piece 42 and the refrigeration box 20, the heat transfer effect between hot end heat exchanger 41 and the semiconductor refrigeration piece 42 is all better, promote heat exchange efficiency. The hot end fixing plate 43 may be mounted on the fixing base 30 by a screw fastener, or may be fastened to the fixing base 30 by a fastening structure. Of course, in other embodiments, a connection structure may be provided on the hot side heat exchanger 41, and the connection structure on the hot side heat exchanger 41 is mounted to the fixing base 30.

In an embodiment, the fixing seat 30 includes an annular inner plate 31, an annular outer plate 32 disposed around the annular inner plate 31 with a space therebetween, and a heat insulation layer 33 filled between the annular inner plate 31 and the annular outer plate 32, wherein an installation cavity is formed inside the annular inner plate 31. Specifically, the annular inner plate 31 and the annular outer plate 32 are connected to each other, and when the heat insulating layer 33 is filled between the annular inner plate 31 and the annular outer plate 32, the heat insulating layer 33 is also formed in an annular shape and is provided around the outer periphery of the refrigeration cassette 20. So can utilize fixing base 30 to block the cold volume of refrigeration box 20 and give off outwards, reduce the cold volume loss of refrigeration box 20, promote the heat preservation effect of refrigeration box 20. Of course, in other embodiments, the insulation layer 33 may not be provided, or the fixing base 30 may be made of an insulation material as a whole.

In one embodiment, the cooling fan further comprises a sealing ring 35, and the sealing ring 35 is disposed between the edge of the opening of the refrigeration cassette 20 and the top cover 11. That is, the edge of the opening of the refrigeration cassette 20 and the edge of the abdicating opening 112 are sealed by the sealing ring 35, so that the water in the refrigeration cassette 20 and the accommodating groove 111 is prevented from leaking from between the edge of the opening of the refrigeration cassette 20 and the edge of the abdicating opening 112, and the sealing performance between the refrigeration cassette 20 and the top cover 11 is improved. Of course, in other embodiments, the sealing ring 35 may not be provided, and for example, the edge of the opening of the refrigeration cassette 20 may be abutted against the edge of the relief opening 112 to achieve sealing.

In an embodiment, the box opening of the refrigeration box 20 is located at the outward installation flange 21, the end face of the fixing seat 30 facing the abdicating opening 112 is provided with the installation convex rib 34, the installation convex rib 34 is annularly arranged at the periphery of the installation flange 21, the installation convex rib 34 abuts against the top cover 11, the protruding height of the installation convex rib 34 is greater than the thickness of the installation flange 21, so that when the fixing seat 30 is installed on the top cover 11, the installation flange 21 is spaced from the opening edge of the abdicating opening 112, the spacing between the installation flange 21 and the opening edge of the abdicating opening 112 is smaller than the thickness of the sealing ring 35, the sealing ring 35 is arranged between the installation flange 21 and the opening edge of the abdicating opening 112, so that not only can the connection stability between the fixing seat 30 and the top cover 11 be ensured, but also the sealing ring 35 can be extruded between the opening edge of the installation flange 21 and the abdicating opening 112, and the sealing effect can be ensured. Of course, in other embodiments, the mounting ribs 34 may not be provided.

In some embodiments, as shown in fig. 5, the fixing seat 30 is provided with four fixing lugs 37 at the periphery of the upper end thereof, and the fixing seat 30 is connected with the bottom wall of the accommodating groove 111 through the fixing lugs 37 to fix the refrigeration cassette 20 on the top cover 11. Of course, in other embodiments, the number of the fixing lugs 37 may be two, three or more.

For example, referring to fig. 4 and 5, in an embodiment, the wet curtain assembly 50 is disposed in the housing 10, the bottom wall of the accommodating groove 111 is respectively provided with an upper water port 113 and a lower water port 114, the upper water port 113 and the lower water port 114 are respectively located at two opposite sides of the refrigeration cassette 20, the upper water port 113 is communicated with the first water tank 81, and the lower water port 114 is communicated with the water inlet end of the wet curtain assembly 50. In this embodiment, wet curtain subassembly 50 includes wet curtain and the water receiving tank of locating wet curtain top, and the water receiving tank bottom is equipped with a plurality of holes that leak, and the hole that leaks evenly drips water on the wet curtain, and the end setting of intaking is on the water receiving tank. Of course, in other embodiments, the water from the drain port 114 may be dropped directly onto the wet curtain.

Specifically, the cooling fan further comprises a first water pump 83, a water outlet end of the first water pump 83 is communicated with the water feeding port 113 through a pipeline, and a water inlet end of the first water pump 83 is communicated with the first water tank 81. The normal temperature water in the first water tank 81 can be discharged to the upper water outlet 113 through the first water pump 83, and then flows into the cooling space formed by the accommodating groove 111 and the cooling box 20, and then flows to the wet curtain assembly 50 from the lower water outlet 114.

When normal temperature water is injected into the accommodating groove 111 and the refrigeration box 20 through the water feeding port 113, if ice water or ice blocks are frozen in the refrigeration box 20, the normal temperature water injected into the refrigeration box 20 through the water feeding port 113 can be mixed with the ice water or ice blocks in the refrigeration box 20, so that the water flowing from the refrigeration box 20 to the water discharging port 114 is ice water with a temperature lower than that of the normal temperature water in the first water tank 81, that is, the water flowing to the wet curtain assembly 50 is ice water, and thus the cooling effect of the wet curtain assembly 50 can be improved. In addition, in the process of injecting water into the refrigeration cassette 20 through the water inlet 113, the refrigeration cassette 20 may be simultaneously refrigerated by the semiconductor refrigeration device 40, so that the normal temperature water flowing into the refrigeration cassette 20 may be refrigerated in real time. Therefore, the refrigeration box 20 is used as a part of the flow path between the first water tank 81 and the wet curtain assembly 50, so that the temperature of water flowing to the wet curtain assembly 50 after flowing through the refrigeration box 20 can be reduced, and the refrigeration effect of the wet curtain assembly 50 can be improved.

In addition, when water is injected into the refrigeration box 20 through the water feeding port 113, the semiconductor refrigeration device 40 can be closed, so that the semiconductor refrigeration device 40 is in a non-working state, that is, the refrigeration box 20 does not refrigerate, water flowing into the refrigeration box 20 from the water feeding port 113 and flowing to the wet curtain assembly 50 after flowing through the refrigeration box 20 is normal temperature water, and the cooling fan is in a normal cold air mode. So set up, the thermantidote has ordinary cold wind mode and the lower low temperature air-out mode of air-out temperature than ordinary cold wind mode in other words, can be convenient for the user to select required air supply mode according to ambient temperature, for example when ambient temperature is higher, can open semiconductor refrigerating plant 40 for the thermantidote is in low temperature air-out mode, reduces the air-out temperature of thermantidote. And when the ambient temperature is lower, can close semiconductor refrigerating plant 40 for the thermantidote is in ordinary cold wind mode, can practice thrift the electric power resource. The first water pump 83 may be a submersible pump or a self-priming pump.

In an embodiment, a flow guiding structure is disposed on the bottom wall of the accommodating groove 111 between the upper water port 113 and the lower water port 114, and the flow guiding structure is configured to guide the water flowing from the upper water port 113 to the refrigeration cassette 20, so as to flow to the lower water port 114 after passing through the refrigeration cassette 20. That is, when the normal temperature water in the first water tank 81 is discharged to the upper water outlet 113 by the first water pump 83, the normal temperature water flowing in from the upper water outlet 113 can be guided to the refrigeration cassette 20 from the abdicating opening 112 by the flow guiding structure, and when the refrigeration cassette 20 is full of water, the water in the refrigeration cassette 20 can overflow from the abdicating opening 112 and flow to the wet curtain assembly 50 from the lower water outlet 114. Therefore, the normal-temperature water flowing from the water feeding port 113 can be ensured to flow to the water discharging port 114 after flowing through the refrigeration box 20, so that the normal-temperature water flowing from the water feeding port 113 can be ensured to be mixed with the cold water in the refrigeration box 20.

Referring to fig. 2, 4 and 5, in an embodiment, the first water tank 81 is disposed at a lower portion of the housing 10. Through setting up first water tank 81 the lower part of casing 10, can reduce the focus of thermantidote for thermantidote during operation is more stable. In addition, in other embodiments, the first water tank 81 may be disposed on the top of the housing 10, and a water pump may be disposed to discharge water from the first water tank 81 to the refrigeration cassette 20, or the water pump may not be disposed, and the water from the first water tank 81 may flow to the refrigeration cassette 20 by gravity.

In an embodiment, the cooling fan further includes a water path switching assembly 90, the water path switching assembly 90 has a first port, a second port and a third port, the first port is communicated with the first water tank 81, the second port is communicated with the water inlet 113, and the third port is communicated with the water inlet of the wet curtain assembly 50. The waterway conversion assembly 90 has a first working state and a second working state, and in the first working state, the first interface is communicated with the second interface and is disconnected with the third interface; in the second working state, the first interface is communicated with the third interface and is disconnected with the second interface.

When water route conversion component 90 is in the first operating condition, normal atmospheric temperature water of first water tank 81 can be discharged to storage tank 111 to through refrigeration box 20 backward to the leading-in frozen water of wet curtain component 50, with the refrigeration effect that promotes the thermantidote, make the thermantidote be in the lower low temperature air-out mode of air-out temperature than ordinary cold wind mode. And when water route conversion subassembly 90 is in the second operating condition, can directly lead the wet curtain subassembly 50 with the normal atmospheric temperature water of first water tank 81 for the thermantidote is in ordinary cold wind mode.

In addition, after the waterway conversion assembly 90 is arranged, the waterway conversion assembly 90 can be switched to the first working state firstly, so that water is injected into the refrigeration box 20, after the refrigeration box 20 reaches a preset water level (the preset water level can be set as required), the waterway conversion assembly 90 is switched to the second working state, so that the cooling fan can be supplied air in a common cold air mode when the refrigeration box 20 is used for refrigeration, and the use is more convenient for a user. And when the temperature of water in the refrigeration box 20 reduces or after freezing, can switch water route conversion subassembly 90 to first operating condition for normal atmospheric temperature water in the first water tank 81 and the frozen water in the refrigeration box 20 mix the back and flow to wet curtain subassembly 50, make the thermantidote be in low temperature air-out mode.

For example, in an embodiment, the flow guiding structure includes two first separating ribs 121 respectively disposed on two opposite sides of the abdicating opening 112, the two first separating ribs 121 are both located between the upper water inlet 113 and the lower water inlet 114, one end of the first separating rib 121 is connected to the groove sidewall of the accommodating groove 111, and the other end extends to the edge of the abdicating opening 112. That is, the first partition rib 121 is used for limiting the water flowing into the upper water inlet 113 from flowing to the lower water inlet 114 along the bottom wall of the accommodating groove 111, so as to ensure that the normal-temperature water flowing from the upper water inlet 113 flows into the refrigeration cassette 20 first, and then flows from the refrigeration cassette 20 to the lower water inlet 114. Therefore, the top cover 11 is simple in structure, the mold structure is simplified, and the cost is reduced.

In an embodiment, the cooling fan further includes a water path switching assembly 90, the water path switching assembly 90 has a first port, a second port and a third port, the first port is communicated with the first water tank 81, the second port is communicated with the water inlet 113, and the third port is communicated with the water inlet of the wet curtain assembly 50. The waterway conversion assembly 90 has a first working state and a second working state, and in the first working state, the first interface is communicated with the second interface and is disconnected with the third interface; in the second working state, the first interface is communicated with the third interface and is disconnected with the second interface. The diversion structure comprises two first separation ribs 121 which are respectively arranged on two opposite sides of the abdicating opening 112, the two first separation ribs 121 are both positioned between the upper water port 113 and the lower water port 114, one end of each first separation rib 121 is connected to the side wall of the accommodating groove 111, and the other end of each first separation rib extends to the edge of the abdicating opening 112.

Thus, when the waterway conversion assembly 90 is in the first working state, the normal-temperature water in the first water tank 81 can be discharged to the accommodating groove 111 through the water inlet 113, and the normal-temperature water flowing into the accommodating groove 111 from the water inlet 113 flows into the refrigeration cassette under the blocking and blocking action of the first separating rib 121. Thereafter, after the refrigeration cassette 20 reaches the preset water level (the preset water level may be set as required), the waterway conversion assembly 90 may be switched to the second operating state to directly guide the normal-temperature water of the first water tank 81 to the wet curtain assembly 50 through the first and third interfaces of the waterway conversion assembly 90. The semiconductor refrigeration unit 40 may be activated at this time so that the refrigeration cassette 20 can independently make ice from the water therein. Or the waterway conversion assembly 90 can be always kept in the first working state, so that the water in the first water tank 81 flows to the wet curtain assembly 50 after passing through the refrigeration box 20, and in the process that the normal-temperature water flows through the refrigeration box 20, the water can be refrigerated in real time through the semiconductor refrigeration device 40 and the refrigeration box 20, the temperature of the water when the water flows to the wet curtain assembly 50 is reduced, and the duration that the cooling fan is in the low-temperature air-out mode can be increased.

In one embodiment, the cooling fan further comprises a controller, and the cooling fan has a third working state that the wet curtain assembly 50 and the semiconductor refrigerating device 40 work simultaneously; in the third working state, the controller is configured to control the first interface and the second interface of the waterway conversion assembly 90 to communicate with each other, so as to guide the normal-temperature water in the first water tank 81 into the refrigeration cassette 20; until the water level in the refrigeration cassette 20 reaches the preset water level, the controller is configured to control the first interface and the third interface of the waterway conversion assembly 90 to communicate with each other, so as to guide the normal-temperature water in the first water tank 81 to the wet curtain assembly 50; when the temperature of the water in the refrigeration cassette 20 reaches a preset temperature, the first interface and the second interface of the waterway conversion assembly 90 are controlled to be communicated, so that the normal-temperature water in the first water tank 81 is guided into the refrigeration cassette 20 to be mixed with the cold water in the refrigeration cassette 20 and then flows to the wet curtain assembly 50. When the normal temperature water of the first water tank 81 is directly guided to the wet curtain assembly 50 without passing through the refrigeration cassette 20, the refrigeration cassette 20 can be independently refrigerated by the semiconductor refrigeration device.

Different from the embodiment in which the flow guiding structure includes two first partition ribs 121 respectively disposed on two opposite sides of the abdicating opening 112, in another embodiment, referring to fig. 8 to 10, the flow guiding structure forms a first water path and a second water path in the accommodating groove 111, the first water path extends from the upper water port 113 to the lower water port 114 after passing through the refrigeration cassette 20, the second water path extends from the upper water port 113 to the lower water port 114 along the groove bottom wall of the accommodating groove 111, the cooling fan has a first operating mode and a second operating mode, the cooling fan opens the first water path in the first operating mode, and opens the second water path in the second operating mode. I.e. a first water circuit is required to pass through the refrigeration cassette 20, while a second water circuit can bypass the refrigeration cassette 20 and direct the normal temperature water from the upper water port 113 to the lower water port 114. That is, the first operation mode is a low-temperature air-out mode in which the normal-temperature water flows to the refrigeration cassette 20 first for refrigeration, then flows from the refrigeration cassette 20 to the down nozzle 114, and finally flows to the wet curtain assembly 50 for heat exchange. The second working mode is a normal cool air mode in which the normal temperature water is directly guided to the wet curtain assembly 50 without passing through the refrigeration cassette 20 (the outlet air temperature in the low temperature outlet air mode is lower than that in the normal cool air mode). So under the condition that does not set up water route conversion assembly, also can make the thermantidote be in ordinary cold wind mode air supply when through refrigeration box 20 refrigeration. Avoiding the arrangement of a waterway conversion assembly between the first water tank 81 and the wet curtain assembly 50 can reduce the pipeline structure in the cooling fan.

In one embodiment, the flow guiding structure includes a second separating rib 122 and a water blocking door 126, the second separating rib 122 is disposed on the bottom wall of the accommodating groove 111 and at least partially surrounds the edge of the abdicating opening 112, a water passing gap 127 is formed between the second separating rib 122 and the side wall of the accommodating groove 111, and the water blocking door 126 is movably mounted in the water passing gap 127 to open or close the water passing gap 127. The second water separation rib 122 is provided with a first water passing opening 123 and a second water passing opening 124, the first water passing opening 123 is arranged on one side, where the second water separation rib 122 is located, of the upper water opening 113 so as to be communicated with the upper water opening 113, the first water passing opening 123 is higher than the water passing gap 127, the second water passing opening 124 is arranged on one side, where the second water separation rib 122 is located, of the lower water opening 114 so as to be communicated with the lower water opening 114, and the second water passing opening 124 is higher than the lower water opening 114.

Therefore, a waterway conversion assembly arranged between the first water tank 81 and the wet curtain assembly 50 can be omitted, and a through structure in the cooling fan can be reduced. When opening water clearance 127 through keeping off water door 126, can make the normal atmospheric temperature water of first water tank 81 directly lead wet curtain subassembly 50 through not freezing box 20 for the thermantidote is in ordinary cold wind mode, and makes freezing box 20 refrigerate alone, promptly, under the condition that does not set up water route conversion module, also can make the thermantidote be in ordinary cold wind mode air supply through freezing box 20 refrigeration in, can make the thermantidote be in ordinary cold wind mode air supply. When the water passing gap 127 is closed through the water blocking door 126, the water flowing from the water feeding port 113 can be cooled towards the refrigeration box 20, then flows towards the water discharging port 114 from the refrigeration box 20, and finally flows towards the wet curtain component 50 for heat exchange, so that the cooling fan is in a low-temperature air outlet mode. Wherein, a driving motor can be arranged on the housing 10, and the driving motor is in driving connection with the water blocking door 126 and is used for driving the water blocking door 126 to open or close the water gap 127. Or may be moved by a user manually toggling the water deflector door 126 to open or close the water gap 127. Of course, in other embodiments, a movable water gate may be provided at each of the first water passing opening 123 and the second water passing opening 124, and the first water passing opening 123 and the second water passing opening 124 are opened and closed by the respective movable water gates.

That is, the water level of the first water passing opening 123 is higher than the water level of the water passing gap 127, the water flowing from the water feeding opening 113 flows preferentially to the water passing gap 127, and when the water passing gap 127 is closed by the water blocking door 126, the water flows to the refrigeration cassette 20 through the first water passing opening 123 as the amount of the water flowing from the water feeding opening 113 increases. When the second water passing opening 124 is higher than the lower water opening 114, that is, the water level of the second water passing opening 124 is higher than the water level of the lower water opening 114, when the water flowing from the upper water opening 113 flows to the side of the lower water opening 114 through the water passing gap 127, the water can preferentially flow to the lower water opening 114, and the situation that the water passing through the water passing gap 127 flows into the refrigeration cassette 20 from the second water passing opening 124 is avoided.

Referring to fig. 10 and 11, in an embodiment, the bottom wall 1101 of the accommodating groove 111 is inclined downward gradually in a direction from the top nozzle 113 to the bottom nozzle 114, that is, the bottom wall 1101 of the accommodating groove 111 is set to be high on one side and low on the other side, the end close to the top nozzle 113 is high, the end close to the bottom nozzle 114 is low, and a height difference Δ H exists between the top nozzle 113 and the bottom nozzle 114. Therefore, water can flow more smoothly under the action of gravity from the upper water gap to the lower water gap. Of course, in other embodiments, the bottom wall of the receiving groove 111 may be disposed in a horizontal plane, and at this time, water blocking ribs may be disposed at positions of the bottom wall of the receiving groove 111 corresponding to the first water passing opening 123 and the second water passing opening 124, respectively, so that an upper end edge of the water blocking rib is higher than the water passing levels of the lower water passing opening 114 and the water passing opening.

Referring to fig. 8 to 10, in an embodiment, the first water passing opening 123 is disposed between the water feeding opening 113 and the water passing gap 127, a water baffle 125 is disposed on a bottom wall of the accommodating groove 111, one end of the water baffle 125 is connected to a side of the first water passing opening 123 close to the water feeding opening 113, and the water baffle 125 gradually extends in an inclined manner in a direction away from the first water passing opening 123 in a direction in which the water feeding opening 113 points to the water passing gap 127. That is, the water baffle 125 is located at one side of the first water passing opening 123 facing the water feeding opening 113, so that the water flowing from the water feeding opening 113 can be blocked by the water baffle 125, the water flowing from the water feeding opening 113 is prevented from directly flowing to the first water passing opening 123, and only when the water baffle door 126 closes the water passing gap 127 and the water level reaches the first water passing opening 123, the water can enter the refrigeration box 20 from between the water baffle 125 and the first water passing opening 123. Of course, in other embodiments, the water guard plate 125 may not be provided.

Unlike the embodiment in which the bottom wall of the accommodating groove 111 is provided with the upper water port 113 and the lower water port 114 on two opposite sides of the refrigeration cassette 20, in another embodiment, referring to fig. 12, the upper water port 113 and the lower water port 114 may not be provided, and the first water tank 81 and the wet curtain assembly 50 are directly connected through a water pump and a pipeline.

Referring to fig. 4, in an embodiment, the bottom wall of the accommodating groove 111 is provided with a water blocking rib 115, two ends of the water blocking rib 115 are connected to the side wall of the accommodating groove 111 to form a water adding groove surrounded by the side wall of the accommodating groove 111, the water adding groove is provided with a water adding hole 116, and the water adding hole 116 is communicated with the first water tank 81. Specifically, the water blocking rib 115 is bent, and two ends of the water blocking rib 115 are connected to the groove sidewall of the accommodating groove 111 at intervals, so that the water filling groove is formed by the water blocking rib 115 and the groove sidewall of the accommodating groove 111. And the water blocking rib 115 can block the water flowing into the containing groove 111 from the water feeding port 113 from flowing into the water feeding tank. When first water tank 81 need add water, can add water in to the basin of adding water, the water in the basin of adding water can flow into first water tank 81 through the filler, so be equivalent to establish the top at the thermantidote with first water tank 81's the position of adding water, avoid the user to bend over when adding water and action such as squat, the user operation of can being convenient for. Of course, in other embodiments, the water-blocking rib 115 may also be arranged in a straight strip shape, for example, one end of the water-blocking rib 115 may be connected to one of the side walls of the accommodating groove 111, and the other end of the water-blocking rib 115 may be connected to the other side wall opposite to the accommodating groove 111; or the water blocking ribs 115 are arranged at the corners of the accommodating groove 111. In addition, in other embodiments, the water feeding tank may not be provided.

Referring to fig. 9 and 10, in an embodiment, the flow guiding structure includes a second separating rib 122 and a water blocking door 126, the second separating rib 122 is disposed on a bottom wall of the accommodating groove 111 and at least partially surrounds an edge of the abdicating opening 112, a water passing gap 127 is formed between the second separating rib 122 and a side wall of the accommodating groove 111, and the water blocking door 126 is movably mounted in the water passing gap 127 to open or close the water passing gap 127. In the first working mode of the cooling fan, the water blocking door 126 closes the water gap 127, and in the second working mode, the water blocking door 126 opens the water gap 127. The second water separation rib 122 is provided with a first water passing opening 123 and a second water passing opening 124, the first water passing opening 123 is arranged on one side, where the second water separation rib 122 is located, of the upper water opening 113 so as to be communicated with the upper water opening 113, the first water passing opening 123 is higher than the water passing gap 127, the second water passing opening 124 is arranged on one side, where the second water separation rib 122 is located, of the lower water opening 114 so as to be communicated with the lower water opening 114, and the second water passing opening 124 is higher than the lower water opening 114. The bottom wall of the accommodating groove 111 is provided with a water blocking rib 115, two ends of the water blocking rib 115 are connected to the side wall of the accommodating groove 111, so as to form a water adding groove surrounded by the side wall of the accommodating groove 111, the water adding groove is provided with a water adding hole 116, and the water adding hole 116 is communicated with the first water tank 81. A water passing gap 127 is formed between the water blocking rib 115 and the second rib 122. Because the second separating rib 122 is mainly used for surrounding the edge of the abdicating opening 112, and the arrangement position of the water feeding groove in the accommodating groove 111 has no requirement basically, the water blocking separating rib 115 can be adapted to the arrangement position of the second separating rib 122, so that the water passing gap 127 is formed between the water blocking separating rib 115 and the second separating rib 122, the utilization rate of each structure in the accommodating groove 111 can be improved, the water passing gap 127 formed between other structures additionally arranged on the second convex rib and the groove side wall of the accommodating groove 111 can be avoided, the structure of the second separating rib 122 can be simplified, and the structure in the accommodating groove 111 can also be simplified.

In an embodiment, the cooling fan further includes a controller, the cooling fan has a third operating mode in which the wet curtain assembly 50 and the semiconductor refrigerating device operate simultaneously, in the third operating mode, the controller is configured to control the water blocking door 126 to close the water passing gap 127 to open the first water path and guide the normal temperature water to the refrigerating box 20, until the water level in the refrigerating box 20 reaches a preset water level, the controller is configured to control the water blocking door 126 to open the water passing gap 127 to open the second water path, and when the water temperature in the refrigerating box 20 reaches a preset temperature, the controller is configured to control the water blocking door 126 to close the water passing gap 127 to open the first water path and mix the normal temperature water with the cold water in the refrigerating box 20 to flow to the wet curtain assembly 50.

Specifically, in the third operation mode, the controller first controls the water blocking door 126 to close the water passing gap 127 to open the first water path, so that the normal temperature water entering from the water feeding port 113 flows to the refrigeration cassette 20. When the water level in the refrigeration box 20 reaches the preset water level, the controller controls the water blocking door 126 to open the water passing gap 127 so as to open the second water path, at this time, the normal temperature water entering from the water feeding port 113 flows to the water discharging port 114 from the second water path, and meanwhile, the normal temperature water in the refrigeration box 20 can be refrigerated through the semiconductor refrigeration device. When the temperature of the water in the refrigeration cassette 20 reaches a preset temperature, the controller controls the water blocking door 126 to close the water passing gap 127 to open the first water path, so that the normal-temperature water entering from the water feeding port 113 flows into the refrigeration cassette 20 to be mixed with the cold water in the refrigeration cassette 20 and then flows to the wet curtain assembly 50. So when making the normal atmospheric temperature water of first water tank 81 not pass through refrigeration box 20 and direct direction wet curtain subassembly 50, can refrigerate alone refrigeration box 20 through semiconductor refrigerating plant, also promptly, under the condition that does not set up water route conversion subassembly, also can make the thermantidote be in ordinary cold wind mode air supply through refrigeration box 20 refrigerated while, can make the thermantidote be in.

The controller may determine whether the water level in the refrigeration cassette 20 reaches a preset water level by calculating the time for filling water into the accommodating groove 111. It is also possible to determine whether the water level in the refrigeration cassette 20 reaches a preset level or not by providing a water level sensor in the container 111, and so on. Similarly, the controller may determine whether the temperature of the water in the refrigeration cassette 20 reaches a preset temperature by calculating the operating time of the semiconductor refrigeration device. It is also possible to determine whether the temperature of the water in the refrigeration cassette 20 reaches a preset level or not by providing a temperature sensor in the refrigeration cassette 20, and so on.

Referring to fig. 2, 3 and 6, in an embodiment, the hot-side heat exchanger 41 includes a hot-side heat exchange main body 411, the hot-side heat exchange main body 411 is in heat conduction connection with the hot side of the semiconductor chilling plate 42, the hot-side heat exchange main body 411 is provided with a heat dissipation liquid channel, a hot-side inlet 412 connected to one end of the heat dissipation liquid channel, and a hot-side outlet 413 connected to the other end of the heat dissipation liquid channel, the hot-side inlet 412 is used for inputting heat exchange liquid into the heat dissipation liquid channel, and the hot-side outlet 413 is used for discharging the heat exchange liquid after heat exchange in. Specifically, the hot side inlet 412 is used for the inflow of the heat-exchange liquid, and when the semiconductor refrigeration device 40 is in operation, the heat at the hot side of the semiconductor refrigeration fins 42 can be conducted to the hot side heat-exchange main body 411. The heat-exchange liquid is introduced into the cold-end dissipating liquid channel through the hot-end inlet 412, so that the heat-exchange liquid exchanges heat with the hot-end heat-exchange main body 411 in the process of flowing through the cold-end dissipating liquid channel, the heat conducted to the hot-end heat-exchange main body 411 by the semiconductor chilling plates 42 can be taken away, and the hot-end heat dissipation of the semiconductor chilling plates 42 is realized. When the hot-end heat exchanger 41 exchanges heat with the semiconductor refrigeration sheet 42 in a liquid cooling mode, the heat exchange efficiency between the hot-end heat exchanger 41 and the semiconductor refrigeration sheet 42 is improved, and the heat dissipation effect is improved. Wherein, the heat exchange liquid can be water or other refrigerant media. In addition, in other embodiments, heat dissipation fins may also be disposed on the hot-side heat exchange body 411 for heat dissipation.

In one embodiment, the hot-side heat exchanger 41 further includes a hot-side heat-exchange water discharge 414 and a heat-dissipation fan assembly 415, the hot-side outlet 413 is communicated with the water inlet of the hot-side heat-exchange water discharge 414, the hot-side inlet 412 is communicated with the water outlet of the hot-side heat-exchange water discharge 414, the housing 10 is provided with a heat-dissipation cavity 105, the heat-dissipation fan assembly 415 and the hot-side heat-exchange water discharge 414 are both disposed in the heat-dissipation cavity 105, and the heat-dissipation fan assembly 415 is disposed on one side of the hot-side heat-exchange water discharge 414. That is, the heat dissipating fluid in a high temperature state flowing out from the hot-side outlet 413 may flow to the hot-side heat exchange water discharge 414, and the heat exchanging fluid exchanges heat with the hot-side heat exchange water discharge 414 in the process of flowing through the hot-side heat exchange water discharge 414. Under the action of the heat dissipation fan component 415, external air flow enters the heat dissipation cavity 105 from the first air inlet 101 of the heat dissipation cavity 105, and when the air flow flows through the hot-end heat exchange water discharge 414, the air flow and the hot-end heat exchange water discharge 414 can be subjected to heat exchange and then sent out from the first air outlet 102 of the heat dissipation cavity 105, so that the heat dissipation of the semiconductor refrigeration device 40 is realized. Therefore, the consumption of the heat exchange liquid in the hot-end heat exchanger 41 can be reduced, and resources can be saved, for example, when the heat exchange liquid is water, the water resources can be saved. And the air flow can be prevented from contacting with water in the process of passing through the hot-end heat-exchange water discharge 414, so that the condition that water vapor is added in the air flow when the air flow passes through the hot-end heat exchanger 41, namely, the condition that the humidity in the heat-dissipation air flow is increased can be avoided. Of course, in other embodiments, the heat-exchange liquid after heat exchange by the hot-end heat-exchange body 411 may also be directly discharged out of the cooling fan.

In one embodiment, the hot side heat exchange body 411 includes a heat dissipating body provided with a hot side channel groove having one end communicating with the hot side inlet 412 and the other end communicating with the hot side outlet 413, and a heat dissipating cover covering the hot side channel groove to form a heat dissipating fluid channel. Specifically, the hot side runner groove, the hot side inlet 412 and the hot side outlet 413 are all disposed in the heat dissipation body, and the heat dissipation cover plate is sealed and sealed in the notch of the hot side runner groove. So can be so that heat dissipation apron's simple structure, the production and processing of being convenient for is favorable to reduction in production cost. Of course, in other embodiments, the hot side inlet 412 and the hot side outlet 413 may be disposed on the heat sink cover plate. In addition, the hot-end heat exchange main body 411 may also be formed by splicing two heat dissipation main body grooves provided with hot-end runner grooves.

In one embodiment, the heat sink fluid path is arranged between the hot side inlet 412 and the hot side outlet 413 in a winding manner, which means that the heat sink fluid path is bent or continuously bent, etc. The heat-dissipating fluid channel is used for flowing heat-exchanging fluid, i.e. the heat-exchanging fluid flows in from the hot-side inlet 412 and flows out from the hot-side outlet 413 after flowing through the heat-dissipating fluid channel. In the process that the heat-exchange liquid flows through the heat-dissipation liquid channel, the heat of the hot-end heat-exchange main body 411 can be taken away by the heat-exchange liquid, so that heat dissipation of the hot-end heat-exchange main body 411 is realized. By providing a heat sink fluid path that meanders between hot side inlet 412 and hot side outlet 413. Compared with the way that the heat-dissipating liquid channel extends from the hot-end inlet 412 to the hot-end outlet 413, the length and the heat-exchanging area of the heat-dissipating liquid channel can be increased, which is beneficial to improving the heat-exchanging efficiency of the hot-end heat exchanger 41, and only one hot-end inlet 412 and one hot-end outlet 413 can be arranged on the hot-end heat-exchanging main body 411, which is beneficial to simplifying the structure of the hot-end heat exchanger 41.

In an embodiment, the hot end outlet 413 and the hot end inlet 412 are disposed at the same end of the hot end heat exchange body 411, so that when installing the pipes connecting the hot end outlet 413 and the hot end inlet 412, centralized installation is facilitated, and the assembly efficiency is improved.

Referring to fig. 4 to 7, in an embodiment, the cooling fan further includes a second water tank 82, the hot-end inlet 412 is communicated with the hot-end heat-exchange water discharge 414 through the second water tank 82, that is, the second water tank 82 is connected between the hot-end inlet 412 and the water outlet of the hot-end heat-exchange water discharge 414, that is, the hot-end inlet 412 is communicated with the second water tank 82, and the water outlet of the hot-end heat-exchange water discharge 414 is communicated with the second water tank 82. The cooling fan further comprises a second water pump 84, and the second water pump 84 is used for discharging 414 the guide cooling liquid channel and the hot-end heat-exchange water in the second water tank 82. The second water pump 84 may be a submersible pump or a self-priming pump. That is, the water in the second water tank 82 firstly flows in from the hot end inlet 412, and after sequentially flowing through the heat dissipation liquid channel and the hot end heat exchange water discharge 414, the water flows to the first water tank 81 from the water outlet of the hot end heat exchange water discharge 414, so that the heat exchange water of the hot end heat exchanger 41 can be recycled, and compared with a cooling fan adopting a wet curtain structure, the water adding frequency can be reduced, and the water resource is saved. Of course, in other embodiments, the hot side inlet 412 may be externally connected to a water source, such as a tap water pipe externally connected to the hot side inlet 412. In addition, in other embodiments, the hot side inlet 412 and the hot side heat exchange water discharge 414 may be in direct communication via a water pipe.

In one embodiment, the heat-dissipating fan assembly 415 includes at least one axial fan disposed on the air inlet side or the air outlet side of the hot side heat exchange water discharge 414. In this embodiment, the axial flow fan is disposed on the air outlet side of the cold-end heat exchange water discharge, that is, the axial flow fan is disposed between the cold-end heat exchange water discharge and the air inlet (air outlet) of the heat dissipation cavity 105. When the axial flow fan is adopted, the thickness of the axial flow fan can be thinner, the structural compactness of the cooling fan can be favorably improved, and the overall size of the cooling fan is reduced. The number of the axial fans may be set according to the size of the housing 10, and the number of the axial fans may be specifically two, three, four or more, and so on.

In one embodiment, the second water tank 82 is disposed in the receiving groove 111 of the top cover 11 at the upper end of the housing 10. It should be understood that after the usage time is longer, the amount of water in the second water tank 82 may be reduced by evaporation, and by disposing the second water tank 82 in the accommodating groove 111, after the amount of water in the second water tank 82 is reduced, the user can add water into the second water tank 82, which is greatly convenient for the user to use. Of course, in other embodiments, the second water tank 82 may be closed.

In one embodiment, the hot side heat exchange water discharge 414 and the heat sink assembly 415 are disposed at a lower portion of the housing 10. So set up, can reduce the focus of thermantidote for the thermantidote during operation is more stable. And can avoid hot junction heat transfer log raft 414 and heat dissipation fan subassembly 415 heat dissipation to receive the air supply fan subassembly influence of thermantidote, the radiating effect is better, and overall layout is also more reasonable.

Unlike the embodiment in which the hot side heat exchanger 41 further includes a hot side heat exchange water drain 414 and a heat sink assembly 415, in one embodiment, the hot side outlet 413 is in communication with the water inlet side of the wet curtain assembly 50 to drain the heat exchange liquid after heat exchange in the heat sink liquid channel to the wet curtain assembly 50. Can be with the log raft after the heat transfer of hot end heat transfer main part 411 to wet curtain subassembly 50, so can utilize the water after the heat transfer of hot end heat transfer main part 411, even the temperature in water after the heat transfer of hot end heat transfer main part 411 is higher, under the effect of wet curtain subassembly 50, also less to the air supply temperature influence of thermantidote, consequently less to the air supply temperature influence of thermantidote. And the arrangement of the hot end heat exchange water discharge 414 and the heat dissipation fan component 415 can be reduced, so that the number of parts of the cooling fan is reduced, and the structure of the cooling fan is simplified. In addition, the heat radiator module 415 can be prevented from blowing hot air indoors.

In one embodiment, the semiconductor cooling device 40 includes at least two semiconductor cooling fins 42, each having a cold side in thermal conductive connection with the cooling box 20 and a hot side in thermal conductive connection with the hot side heat exchanger 41. By increasing the number of the semiconductor cooling fins 42, the cooling capacity of the semiconductor cooling device 40 can be increased. Wherein, the number of the semiconductor chilling plates 42 can be two, three, four or more, etc. Of course, in other embodiments, only one semiconductor cooling plate 42 may be provided in the semiconductor cooling device 40.

In one embodiment, the refrigeration cassette 20 is provided with a drain hole for draining residual water in the refrigeration cassette 20, and the cooling fan further includes a water plug 23 installed at the drain hole. I.e. when it is desired to drain the water from the refrigeration cassette 20, the water plug 23 can be removed from the drain hole, so that the water in the refrigeration cassette 20 can drain from the refrigeration cassette 20. When the refrigeration box 20 works, the water plug 23 is inserted into the drainage hole. In one embodiment, the drainage hole communicates with the first water tank 81 to drain water to be drained from the refrigeration cassette 20 to the first water tank 81. In another embodiment, a water pipe may be provided so that the water pipe communicates with the drain hole to directly drain the water in the refrigeration cassette 20 to the outside of the cooling fan.

Referring to fig. 2 and 13, in an embodiment, the first water tank 81 is disposed at a lower portion of the housing 10, the heat dissipation chamber 105 is disposed at a lower portion of the housing 10 and located at a side of the first water tank 81, the lower portion of the housing 10 is provided with a first air inlet 101 and a first air outlet 102 communicating with the heat dissipation chamber 105, and the heat dissipation fan assembly 415 is disposed between the first air inlet 101 and the hot-end heat-exchange water discharge 414. That is, the heat dissipation fan assembly 415, the hot end heat exchange water discharge 414 and the first water tank 81 are all disposed at the lower portion of the housing 10, so as to reduce the center of gravity of the cooling fan, and make the cooling fan more stable during operation. Of course, in other embodiments, the heat dissipation fan assembly 415 may also be disposed between the first air outlet 102 and the hot-side heat exchange water discharge 414.

In an embodiment, the first water tank 81 is located at the front portion of the air outlet direction of the cooling fan, the heat dissipation cavity 105 is located at the rear portion of the cooling fan, the number of the first air inlets 101 is two, the two first air inlets 101 are located at two sides of the hot-end heat-exchange water discharge 414, and the first air outlet 102 is located at the rear portion of the cooling fan. Specifically, the air outlet side (i.e., the side where the second air outlet 104 is located) of the cooling fan is taken as the front, and the air inlet side (i.e., the side where the second air inlet 103 is located) is taken as the rear, i.e., the first air outlet 102 discharges air toward the rear of the cooling fan. Each first air inlet 101 comprises a plurality of air inlet holes, each first air outlet 102 comprises a plurality of air outlet holes, the two first air inlets 101 are arranged on two sides of the hot-end heat exchange water discharge 414, air sucked by the fans from the two first air inlets 101 can flow towards the surface of the hot-end heat exchange water discharge 414, heat is taken away and then the air is discharged from the first air outlet 102 at the rear part, and the air at the first air outlet 102 is discharged towards the rear part to avoid blowing hot air blown out from the first air outlet 102 to a user.

In one embodiment, the casing 10 is provided with a second air inlet 103, a second air outlet 104 and a cross-flow fan 60, the cross-flow fan 60 is disposed between the second air inlet 103 and the second air outlet 104 to draw air flow from the second air inlet 103 and discharge the air flow from the second air outlet 104, the cross-flow fan is disposed above the first water tank 81, the second air inlet 103 is disposed above the first air inlet 101, the wet curtain assembly 50 of the cooling fan is disposed between the cross-flow fan 60 and the second air inlet 103, and the refrigeration cassette 20 is disposed on the top of the casing 10. Particularly, the axis of the cross-flow fan 60 extends along the up-down direction, so that the influence of the heat exchange water discharge 414 at the hot end and the heat dissipation of the heat dissipation fan component 415 on the cross-flow fan 60 of the cooling fan can be avoided, the heat dissipation effect is better, the overall layout is more reasonable, and the structure of the cooling fan is more compact.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a thermantidote, its characterized in that includes:

a housing provided with a refrigeration cassette;

2. The cooling fan according to claim 1, wherein the housing has a receiving groove at an upper end thereof, and the refrigeration cassette has a refrigeration cassette receiving cavity, the refrigeration cassette receiving cavity communicating with the receiving groove.

3. The cooling fan according to claim 2, wherein a top cover is provided at an upper end of the casing, the top cover is formed with the accommodating groove, a relief opening is provided at a bottom wall of the accommodating groove, the refrigeration cassette is provided at the relief opening, and at least a portion of the refrigeration cassette is located below the bottom wall of the accommodating groove.

4. The cooling fan according to claim 3, wherein a cover plate is further provided at an upper end of the casing, and the cover plate is movably mounted on the top cover to close or open the accommodating groove.

5. The cooling fan according to claim 3, further comprising a fixing base connected to the top cover, the fixing base having a mounting cavity, the refrigeration cassette being mounted in the mounting cavity.

6. The cooling fan according to claim 5, wherein the fixing base includes an annular inner plate, an annular outer plate disposed around the annular inner plate with a spacer ring, and a heat insulating layer filled between the annular inner plate and the annular outer plate, and the mounting cavity is formed inside the annular inner plate.

7. The cooling fan according to claim 5, wherein the mounting cavity is provided with two ends penetrating therethrough, the semiconductor cooling device is disposed on one side of the fixing base away from the abdicating opening, and the cold end of the semiconductor cooling plate abuts against the bottom wall of the cooling box.

8. The cooling fan according to claim 5, wherein the fixing base is installed on a back surface of a bottom wall of the accommodating groove, and a box opening of the cooling box accommodating cavity is located right below the abdicating opening in a height direction of the cooling fan, and the cooling box accommodating cavity is communicated with the accommodating groove through the abdicating opening.

9. The cooling fan according to claim 5, wherein a groove recessed toward the receiving groove is formed in a bottom surface of the holder, and the semiconductor cooling device is received in the groove; and/or the presence of a gas in the gas,

10. The cooling fan according to claim 5, wherein the opening of the refrigeration box is provided with an outward mounting flange, the end surface of the fixing seat facing the abdicating opening is provided with a mounting rib, the mounting rib is annularly arranged on the periphery of the mounting flange, the cooling fan further comprises a sealing ring, and the sealing ring is arranged between the mounting flange of the refrigeration box and the top cover.

11. The cooling fan according to claim 4, wherein a wet curtain assembly is provided in the casing, and wherein the bottom wall of the accommodating groove is provided with an upper water gap and a lower water gap, respectively, which are located on opposite sides of the refrigeration cassette, the upper water gap being communicated with the first water tank, and the lower water gap being communicated with the water inlet end of the wet curtain assembly.

12. The cooling fan according to claim 11, wherein a flow guide structure is provided on the bottom wall of the accommodating groove between the water supply port and the water discharge port, and the flow guide structure is configured to guide the water flowing from the water supply port to the refrigeration cassette so as to flow to the water discharge port after passing through the refrigeration cassette.

13. The cooling fan according to claim 12, wherein the flow guiding structure includes two first ribs respectively disposed on two opposite sides of the abdicating opening, two of the first ribs are both located between the water feeding opening and the water discharging opening, one end of the first rib is connected to the groove sidewall of the accommodating groove, and the other end of the first rib extends to the edge of the abdicating opening.

14. The cooling fan according to claim 12, further comprising a waterway conversion assembly having a first port, a second port and a third port, wherein the first port is in communication with the first water tank, the second port is in communication with the water supply port, and the third port is in communication with the water inlet end of the wet curtain assembly;

15. The cooling fan according to claim 14, further comprising a controller, wherein the cooling fan has a third operating state in which the wet curtain assembly and the semiconductor cooling device are simultaneously operated;

in the third working state, the controller is used for controlling the first interface and the second interface of the waterway conversion assembly to be communicated so as to guide the normal-temperature water of the first water tank into the refrigeration box;

the controller is used for controlling the first interface and the third interface of the waterway conversion assembly to be communicated so as to guide the normal-temperature water of the first water tank to the wet curtain assembly after the water level in the refrigeration box reaches a preset water level;

when the water temperature in the refrigeration box reaches a preset temperature, the first interface and the second interface of the waterway conversion assembly are controlled to be communicated, so that the normal-temperature water in the first water tank is guided into the refrigeration box and mixed with the cold water in the refrigeration box to flow to the wet curtain assembly.

16. The cooling fan according to claim 12, wherein the flow guiding structure forms a first water path and a second water path in the accommodating groove, the first water path extends from the upper water opening to the lower water opening after passing through the refrigeration cassette, the second water path extends from the upper water opening to the lower water opening along the bottom wall of the accommodating groove, the cooling fan has a first operating mode and a second operating mode, and the cooling fan opens the first water path in the first operating mode and opens the second water path in the second operating mode.

17. The cooling fan according to claim 16, wherein the flow guiding structure comprises a second rib and a water blocking gate, and the second rib is disposed on the bottom wall of the receiving groove and at least partially surrounds the edge of the abdicating opening;

the second partition rib is provided with a first water passing port and a second water passing port, the first water passing port is arranged on one side, where the second partition rib is located, of the upper water gap so as to be communicated with the upper water gap, and the second water passing port is arranged on one side, where the second partition rib is located, of the lower water gap so as to be communicated with the lower water gap;

the second separate the muscle with it crosses the water clearance to have between the groove lateral wall of storage tank, water blocking door movably install in cross the water clearance, in order to open or close cross the water clearance, the thermantidote is in under the first mode of operation, water blocking door closure cross the water clearance under the second mode of operation, water blocking door opens cross the water clearance.

18. The cooling fan according to claim 17, wherein the first water gap is higher than the water gap, and the second water gap is higher than the water gap; and/or the groove bottom wall of the containing groove is gradually and downwards obliquely arranged in the direction from the upper water opening to the lower water opening.

19. The cooling fan according to claim 18, wherein the first water passing opening is disposed between the water feeding opening and the water passing gap, and a water baffle is disposed on a bottom wall of the accommodating groove, and one end of the water baffle is connected to a side of the first water passing opening close to the water feeding opening, and the water baffle extends in a direction gradually inclined away from the first water passing opening in a direction in which the water feeding opening is directed to the water passing gap.

20. The cooling fan according to claim 18, further comprising a controller, wherein the cooling fan has a third operating mode in which the wet curtain assembly and the semiconductor cooling device operate simultaneously, and in the third operating mode, the controller is configured to control the water blocking door to close the water passing gap to open the first water path and guide the normal-temperature water to the cooling box until a water level in the cooling box reaches a preset water level, and the controller is configured to control the water blocking door to open the water passing gap to open the second water path, and when a water temperature in the cooling box reaches a preset temperature, the controller is configured to control the water blocking door to close the water passing gap to open the first water path and mix the normal-temperature water with the cold water in the cooling box and then flow to the wet curtain assembly.

21. The cooling fan according to claim 2, wherein a water blocking rib is provided on a bottom wall of the receiving groove, both ends of the water blocking rib are connected to a groove sidewall of the receiving groove to form a water charging groove surrounded by the groove sidewall of the receiving groove, and the water charging groove is provided with a water charging hole which is communicated with the first water tank.

22. The cooling fan according to any one of claims 1 to 21, wherein the hot-end heat exchanger includes a hot-end heat exchange body thermally conductively connected to the hot end of the semiconductor cooling fins, the hot-end heat exchange body is provided with a heat-dissipating fluid channel, a hot-end inlet connected to one end of the heat-dissipating fluid channel, and a hot-end outlet connected to the other end of the heat-dissipating fluid channel, the hot-end inlet is configured to introduce a heat-exchanging fluid into the heat-dissipating fluid channel, and the hot-end outlet is configured to discharge the heat-exchanging fluid after heat exchange in the heat-dissipating fluid channel.

23. The cooling fan according to claim 22 wherein the hot side heat exchanger further comprises a hot side heat exchange water drain and a heat dissipation fan assembly, the hot side outlet port is in communication with the hot side heat exchange water drain inlet port, the hot side inlet port is in communication with the hot side heat exchange water drain outlet port, the housing has a heat dissipation chamber, the heat dissipation fan assembly and the hot side heat exchange water drain are both disposed in the heat dissipation chamber, and the heat dissipation fan assembly is disposed on one side of the hot side heat exchange water drain.

24. The cooling fan according to claim 23, wherein the cooling fan further comprises a second water tank, and the hot-side inlet is communicated with the hot-side heat-exchange water through the second water tank.

25. The cooling fan according to claim 24, wherein the second water tank is provided in a receiving groove of a top cover at an upper end of the casing; and/or the hot end heat exchange water discharge and the heat dissipation fan component are arranged at the bottom of the shell.

26. The cooling fan according to claim 23, wherein the first water tank is disposed at a lower portion of the casing, the heat dissipation chamber is disposed at a lower portion of the casing and located at one side of the first water tank, the lower portion of the casing is provided with a first air inlet and a first air outlet which communicate with the heat dissipation chamber, and the heat dissipation fan assembly is disposed between the first air inlet and the hot-end heat-exchange water discharge.

27. The cooling fan according to claim 26, wherein the first water tank is located in front of an air outlet direction of the cooling fan, the heat dissipation cavity is located in the rear of the cooling fan, the number of the first air inlets is two, the two first air inlets are located on two sides of the hot-end heat-exchange water discharge, and the first air outlet is located in the rear of the cooling fan.

28. The cooling fan according to claim 26, wherein a second air inlet, a second air outlet, and a cross-flow fan are provided on the casing, the cross-flow fan is provided between the second air inlet and the second air outlet to draw an air flow from the second air inlet and discharge the air flow from the second air outlet, the cross-flow fan is located above the first water tank, the second air inlet is located above the first air inlet, the wet curtain assembly of the cooling fan is provided between the cross-flow fan and the second air inlet, and the cooling box is provided on a top portion of the casing.