CN107436002B

CN107436002B - Cooling fan

Info

Publication number: CN107436002B
Application number: CN201610364690.8A
Authority: CN
Inventors: 茅金冲
Original assignee: Hangzhou Dizhi Technology Co Ltd
Current assignee: Hangzhou Dizhi Technology Co Ltd
Priority date: 2016-05-26
Filing date: 2016-05-26
Publication date: 2019-12-24
Anticipated expiration: 2036-05-26
Also published as: CN107436002A

Abstract

The invention discloses a cooling fan which comprises an electric fan, a refrigerating device and a humidifying device, wherein the electric fan comprises a blowing end and a negative pressure end, the refrigerating device comprises a water tank and a refrigerating panel provided with a vent, the refrigerating panel is positioned at the negative pressure end of the electric fan and is provided with a plurality of first refrigerating sheets and first water cooling heads attached to hot surfaces of the first refrigerating sheets, the cold surfaces of the first refrigerating sheets are attached to the refrigerating panel, and a water path circulating pipeline is connected between the water tank and the first water cooling heads; refrigeration panel below is provided with one and is used for connecing the water collector who gets the comdenstion water on the refrigeration panel and send into humidification device, has solved the problem that the thermantidote need constantly consume the water tank normal water when refrigerating, has refrigeration effect good, and humidification and limitation are little, convenient to use's advantage.

Description

Cooling fan

Technical Field

The invention relates to the technical field of fan refrigeration and heating, in particular to a cooling fan.

Background

The fan is an electric fan which is used for cooling in hot days and is a device for generating air flow by electric drive, and the fan arranged in the fan is electrified and then rotated into natural wind to achieve the effect of cooling. However, as society develops, people have higher and higher demands on cooling or heating of fans.

An existing patent, for example, chinese patent with patent publication No. CN102620363B and application publication date of 2014, 10 and 29, discloses an evaporation and electronic dual-refrigeration cooling fan, which comprises a box body with an air inlet and an air outlet, and an electronic refrigeration system, an evaporation refrigeration system and an electric wind wheel which are arranged in the box body. Wherein, electronic refrigeration system includes: an electronic refrigeration chip having a cold side and a hot side; a refrigeration heat exchanger connected to the cold side for refrigerating air; the heat dissipation heat exchanger is connected with the hot surface and is used for exchanging heat of the hot surface; and the water path circulating device is connected with the heat dissipation heat exchanger and is used for taking away the heat of the hot surface. The evaporative refrigeration system includes: humidification filtering material, the waterway circulating device who is connected with humidification filtering material. Both the two refrigeration systems are provided with circulating water pumps connected with a water path circulating pipe and share one water storage tank.

The thermantidote in above-mentioned patent, evaporate and the dual refrigeration of electron to the air that gets into the box, wherein, the evaporation is through setting up evaporation refrigerating system in air intake department, air intake department sets up humidification filtering material promptly, and provide the evaporating water for humidification filtering material through water route endless mode, not only can reach better refrigeration effect through this setting, and because the existence of steam and to air cooling in advance, thereby guarantee that the air that blows off from the air outlet can not condense out the water droplet because of the air behind refrigeration heat exchanger, and shine into the problem emergence of the air too dry that blows off.

However, the humidifying and refrigerating effect of the humidifying and filtering material is realized by consuming water in the water tank, and the normal work of the evaporation refrigerating system can be ensured only by adding water into the water tank discontinuously in the using process. Moreover, water in the water tank still is used for carrying out the water-cooling to the refrigeration chip, if when not in time make-up water in the water tank, can lead to the unable elimination of heat that the refrigeration chip produced, and well-known, the heating effect of refrigeration chip when using is greater than the refrigeration effect, if can't carry out good cooling to the hot side when using, not only can lead to its refrigeration effect greatly reduced, probably takes place even to blow off hot-blast circumstances from the air outlet. In actual use, particularly at night, timely supplement of water in the water tank when the water is used up cannot be guaranteed, so that the water tank water replenishing device has the defects of complexity in use and large limitation.

Disclosure of Invention

The invention aims to provide a cooling fan, which solves the problem that water in a water tank needs to be continuously consumed when the cooling fan is used for cooling and has the advantages of excellent cooling effect, small humidification and limitation and convenience in use.

The technical purpose of the invention is realized by the following technical scheme:

a cooling fan comprises an electric fan, a refrigerating device and a humidifying device, wherein the electric fan comprises an air blowing end and a negative pressure end, the refrigerating device comprises a water tank and a refrigerating panel provided with a vent, the refrigerating panel is positioned at the negative pressure end of the electric fan, a plurality of first refrigerating sheets and a plurality of first water-cooling heads attached to hot surfaces of the first refrigerating sheets are arranged on the refrigerating panel, the cold surfaces of the first refrigerating sheets are attached to the refrigerating panel, and a water path circulating pipeline is connected between the water tank and the first water-cooling heads; and a water receiving tray for receiving condensed water on the refrigeration panel and sending the condensed water into the humidifying device is arranged below the refrigeration panel.

By adopting the structure, the refrigeration effect is achieved by the fact that the cold surface of the refrigeration piece is attached to the refrigeration panel, and then the air is blown out from the blowing end of the electric fan after being cooled by the refrigeration panel through the ventilation opening on the refrigeration panel through the negative pressure effect generated by the negative pressure end of the electric fan; wherein, in order to guarantee good refrigeration effect, set up a first water-cooling head at the hot side of refrigeration piece, take out the water in the water tank through water route circulating line and cool off first water-cooling head, in addition, because the last temperature of refrigeration panel is lower when using, can make the drop of water condense on the refrigeration panel surface, the setting through the water collector will collect the water that condenses on the refrigeration panel, the rethread humidification device atomizes the water of collecting and humidifies the wind that blows off, thereby keep the humidity of the air that blows off, play the effect that the indoor humidity was kept in the reduction, make people's health can not like treating in air conditioning environment because of excessively take out the wet air conditioning symptom that leads to the production because of the drying.

More preferably: the water tank is provided with a cold water outlet, a hot water inlet and a plurality of second refrigerating sheets; the waterway circulating pipeline comprises a cooling pipe and a return pipe, the cooling pipe is connected with a cold water outlet and a first water-cooling head, the return pipe is connected with a hot water inlet and the first water-cooling head, and a circulating water pump and an air-cooled cooler are arranged on the return pipe; the cold surface of the second refrigeration piece is arranged in the water tank.

By adopting the structure, the second refrigerating sheet is arranged on the water tank to cool the water in the water tank, so that the cooling effect on the first water cooling head is improved; meanwhile, water can be heated after passing through the first water-cooling head, so that the water is prevented from being directly led into the water tank to influence the temperature of the water in the water tank, the air-cooled cooler is arranged on the return pipe and is cooled firstly and then flows back into the water tank, the temperature of the water led into the first water-cooling head is ensured to be lower, and an excellent cooling effect is achieved.

More preferably: the cooling fan also comprises an air duct shell internally provided with an air duct, the electric fan and the refrigeration panel are both arranged in the air duct, and the bottom of the air duct is arranged on the air duct shell to form the water pan; the humidifying device is evenly provided with a plurality of spray nozzles on the inner wall of the ventilating duct around the axial lead of the electric fan, and the spray nozzles are positioned between the electric fan and the refrigeration panel.

Adopt above-mentioned structure, form fixed air flow channel for the air that blows out can both improve the refrigeration effect of thermantidote through the refrigeration panel cooling, in addition, evenly sets up the nozzle on the interior jade of ventiduct and locate between electric fan and the refrigeration panel, makes during comparatively even the spouting of water smoke to the air, and through electric fan's stirring effect, more even with air mixing, improves the comfort level.

More preferably: the water receiving tray and the humidifying device are both connected with the water tank, a water suction pump for supplying water into the humidifying device is arranged between the humidifying device and the water tank, a liquid level sensor is arranged on the water tank and used for detecting the water level in the water tank and outputting a detection signal, and the water suction pump responds to the detection signal; a water level sensor is arranged in the humidifying device and outputs a control signal, and the humidifying device responds to the control signal.

Because when directly atomizing the emergence humidification with the comdenstion water in the water collector through humidification device, can't guarantee the temperature of comdenstion water and be in lower problem usually, this makes the water smoke that produces can influence the problem of the air after the cooling, and adopt above-mentioned structure, be connected atomizer and water tank, the water in the spray consumption water tank promptly, because the water in the water tank is lower through second refrigeration piece refrigeration back temperature, not only can reach the humidification effect for spray humidification, and can reach dual refrigerated effect. Meanwhile, water in the water receiving tray is collected into the water tank, the liquid level sensor automatic control spraying device is arranged, the water suction pump is started to pump water when the water amount in the water tank reaches a preset value, the water suction pump is closed when the water amount in the water tank is consumed to a certain degree, water is stored through the water receiving tray again, and the water amount in the water tank is guaranteed to be sufficient.

More preferably: an ultraviolet sterilizing lamp and a negative ion generator are arranged in an atomization box of the humidifying device.

Because the atomizing case in the humidification device is difficult to dismantle the clearance, and comparatively moist in the atomizing case, very easily breed the bacterium to make contain a large amount of bacteria in the wind that blows off, adopt above-mentioned structure, through ultraviolet sterilamp and anion generator's setting, solved the problem that the bacterium bred in the atomizing case, effectively solve under long-time operation to the produced secondary bacterial pollution of air.

More preferably: the refrigeration panel comprises a plurality of annularly sealed heat conduction copper pipes and a plurality of heat conduction fins, the cold surfaces of the first refrigeration pieces are uniformly attached to the heat conduction copper pipes around the axial lead of the heat conduction copper pipes, the heat conduction copper pipes attached to the cold surfaces are arranged flatly, a ventilation gap is formed between two adjacent heat conduction copper pipes, the heat conduction fins are connected to the heat conduction copper pipes and are arranged in a manner of intersecting with the heat conduction copper pipes, and the ventilation gaps are divided by the heat conduction fins to form the ventilation openings; the ventilation gaps are gradually enlarged from the two ends of the heat conduction copper pipe to the middle.

Adopt above-mentioned structure, carry out heat-conduction through cyclic annular confined heat conduction copper pipe and heat conduction fin, because the heat conduction copper pipe has good heat conductivity, adopt cyclic annular closed structure and the setting of a plurality of first refrigeration pieces in addition, can guarantee that the refrigerated of each position is comparatively even on the refrigeration panel, and the contact area with the air can be increased in the setting of heat conduction fin, improves refrigerated effect. And gradually big setting up the ventilation gap can avoid having great clearance with the heat conduction copper pipe of cold face laminating part between to reduce the cold face area and improve the utilization ratio of cold face, and guarantee the air quantity through the refrigeration panel, thereby guarantee the amount of wind of electric fan when improving refrigeration effect, thereby reach better refrigeration effect.

More preferably: the heat conduction fins are arranged in an arc shape and form a spiral structure on the refrigeration panel, and the heat conduction fins are inclined towards one end of the spiral bending.

Although the arrangement of the annular closed heat conduction copper pipe can improve the cooling uniformity of each part to a certain extent, the cooling uniformity of each part cannot be ensured to be completely the same, and the size of the ventilation opening cannot be controlled to be the same, so that the refrigeration effect of the air passing through each part has certain difference. Through adopting above-mentioned structure, when electric fan starts to produce the negative pressure, the air suction in the air inlet from the ventiduct, through the refrigeration panel cooling earlier, through the structure that is the spiral and the heat conduction fin setting of slope for the air through the conducting strip produces the spiral, makes the air take place to mix, makes the cold and hot uneven phenomenon of wind that blows off through electric fan can not appear. And when the water mist is mixed with the water mist later, the mixing uniformity of the water mist and the air can be improved.

More preferably: the spiral direction of the spiral structure is the same as the rotation direction of the electric fan.

Adopt above-mentioned structure, because electric fan rotates and can produce certain centrifugal force, the spiral direction that sets up helical structure is the same with electric fan's direction of rotation, can avoid electric fan to produce centrifugal force opposite and reduce the mixed air effect that helical structure produced to strengthen the mixed effect of the air between electric fan and refrigeration panel through this centrifugal force, make its cold and hot, the humidity of the air that blows off all more even effect.

More preferably: the end faces of the heat conduction fins are provided with water locking grooves, and the water locking grooves are arranged along the length direction of the heat conduction fins.

Because the surface of the refrigeration panel can condense out condensed water, if wind power is large, water drops can easily fly out and can not normally flow into the water receiving tray in use, the water receiving amount is influenced, the atomization effect of the atomizing device is further influenced, the humidification time of the atomizing device is shortened, and the refrigeration effect of the cooling fan is influenced. Adopt above-mentioned structure, use the setting in lock basin to pin the comdenstion water, in addition the slope setting of heat conduction fin for the comdenstion water flows into the water collector through the lock basin in, guarantees to connect the water yield, thereby the higher humidification and refrigeration effect that are higher.

More preferably: the first water cooling head is internally provided with an S-shaped flow guide channel internally provided with a plurality of heat conduction needles, and the heat conduction needles are connected to the hot surface of the first refrigeration sheet and penetrate through the S-shaped flow guide channel.

By adopting the structure, the S-shaped flow guide channel and the heat conduction needle are arranged to increase the contact area and increase the heat conduction efficiency, so that the first water cooling head has a good cooling effect.

More preferably: the first water-cooling head is internally provided with a communicating channel and a plurality of partition plates, the communicating channel penetrates through the cavity between the partition plates and is communicated with the cavities between the partition plates, an inlet and an outlet of the first water-cooling head are respectively arranged on the cavities at the two outermost sides in the direction of the communicating channel, and a plurality of heat conducting pins are vertically arranged on the side wall of each partition plate.

By adopting the structure, the contact area can be increased and the heat conduction efficiency is increased through the communication channel, the plurality of the partition plates and the heat conduction needles, so that the first water cooling head has a good cooling effect.

More preferably: the one end that the ventilation shell was equipped with the refrigeration panel is provided with the filter screen, the refrigeration panel is located between filter screen and the electric fan.

By adopting the structure, the arrangement of the filter screen filters out dust and particulate matters in the air, so that the blown air can be dried completely, and the healthy living requirements can be met; in addition, the filter panel is extremely difficult to disassemble and clean, dust and particles can be prevented from being stuck on the filter panel due to the arrangement, and the problem that the filter panel is required to be disassembled and cleaned for a long time is solved.

In conclusion, the invention has the following beneficial effects:

1. the condensed water on the control panel is recycled into the humidifying device for reuse through the arrangement of the water receiving disc, so that the humidity of blown air and the original indoor humidity are kept, and the air is prevented from being dried excessively to cause air conditioning diseases; in addition, by having the advantage of health in use;

2. the water receiving disc can continuously supply water to the water tank for the spraying device to consume, meanwhile, the arrangement of the liquid level sensor can ensure that the water in the water tank is sufficient, the cooling effect on the first refrigerating sheet is not influenced, the humidifying effect can be achieved without manual water adding, and refrigeration can be ensured;

3. the water in the water tank is cooled by the second refrigerating sheet and the air-cooled cooler, so that the cooling effect on the hot surface of the first refrigerating sheet can be improved, the water mist generated by the spraying device has a lower problem, and the water mist is combined with the refrigerating panel to generate a better refrigerating effect;

4. the spiral and inclined arrangement of the heat conducting fins ensures that the air passing through the refrigeration panel can generate spiral force, and the spiral force generated by the rotation of the electric fan is combined, so that the humidity and the cold and heat of the blown air are uniform;

5. compared with an air conditioner, the refrigeration of the invention does not need Freon, and does not discharge heat to the outside to generate a heat conduction effect, thereby being more environment-friendly and energy-saving.

Drawings

FIG. 1 is a schematic structural diagram of a cooling fan;

FIG. 2 is a schematic structural diagram according to the first embodiment;

FIG. 3 is a front view of the first embodiment;

FIG. 4 is a schematic structural diagram of a first water cooling head in the first embodiment;

FIG. 5 is a schematic structural view of a first water-cooling head in the second embodiment;

FIG. 6 is a front view of the third embodiment;

FIG. 7 is a front view of the fourth embodiment;

FIG. 8 is a partial cross-sectional view of FIG. 7, showing the structure of the heat transfer fins;

FIG. 9 is an enlarged view of portion A of FIG. 8;

FIG. 10 is a schematic configuration diagram of a fifth embodiment, showing the configuration of a cooling device and an electric fan;

FIG. 11 is a left side view of FIG. 10;

FIG. 12 is a rear view of FIG. 10;

FIG. 13 is a schematic structural view of a water tank in the fifth embodiment;

FIG. 14 is a schematic structural view of a ventilating shell part in the seventh embodiment, which shows the structures of a humidifying device, a water-receiving tray and a spray opening;

fig. 15 is a schematic structural view of the eighth embodiment, showing the structures of the water tank, the humidifying device, and the ventilation housing.

Fig. 16 is a control circuit of the water pump in the eighth embodiment.

In the figure, 1, a housing; 11. a refrigeration button; 12. a heating button; 111. a first temperature adjustment knob; 112. a second temperature adjustment knob; 121. a thermal temperature regulator; 13. a roller; 2. a ventilated casing; 21. a protective mesh plate; 22. a water pan; 221. a water through hole; 23. a spray tube; 231. a spray nozzle; 24. a water collection pipe; 25. a water pumping pipe; 26. a filter screen; 3. a humidifying device; 4. a refrigeration panel; 41. a heat conducting copper pipe; 42. a heat conductive fin; 421. a water locking groove; 43. a first refrigeration sheet; 44. a first water cooling head; 441. an inlet; 442. an outlet; 443. a flow guide channel; 444. a heat conducting pin; 445. a partition plate; 446. a communication channel; 45. a vent; 46. a through hole; 5. an electric fan; 51. a motor; 6. a water tank; 61. a cooling tube; 62. a return pipe; 63. a cold water outlet; 64. a hot water inlet; 7. an air-cooled cooler; 8. a water circulating pump; 9. a second water cooling head; 10. a water pump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example 1: the utility model provides a refrigeration panel 4, as shown in fig. 2 and 3, includes a plurality of heat conduction copper pipes 41, a plurality of heat conduction fin 42 and a plurality of first refrigeration piece 43, and heat conduction copper pipes 41 quantity is six in this embodiment, and six heat conduction copper pipes 41 are the same cyclic annular enclosed construction of shape, locate on the coplanar and be gradually big setting.

A ventilation gap is formed between every two adjacent heat conduction copper pipes 41, the cold surface of the first refrigeration sheet 43 is attached to the heat conduction copper pipes 41, and the portions, attached to the cold surface, of the heat conduction copper pipes 41 are flat and used for increasing the contact area. And the ventilation gap between two adjacent first refrigeration pieces 43 is gradually enlarged in the middle of two first refrigeration pieces 43, and a large gap is avoided between the heat conduction copper pipe 41 attached to the cold surface, so that the area of the cold surface is reduced, the utilization rate of the cold surface is improved, and the air volume passing through the refrigeration panel 4 can be ensured.

In this embodiment, four first cooling fins 43 are provided, and are uniformly disposed on the heat conducting copper pipe 41 around the axial lead of the heat conducting copper pipe 41.

Referring to fig. 4, a first water cooling head 44 is provided on a hot surface of the first cooling fin 43, and an inlet 441 and an outlet 442 are provided on the first water cooling head 44 for introducing cold water and delivering hot water, respectively. The first water cooling head 44 is provided with an S-shaped flow guide channel 443 internally provided with a plurality of heat conducting pins 444, the heat conducting pins 444 are used for increasing the heat conducting area and increasing the heat conducting speed, the inlet 441 and the outlet 442 are respectively positioned at two ends of the S-shaped flow guide channel 443, and the heat conducting pins 444 are connected to the hot surface of the first refrigerating sheet 43 and penetrate through the S-shaped flow guide channel 443.

Referring to fig. 2 and 3, the heat conducting fins 42 are connected to the heat conducting copper pipes 41 and are intersected with the heat conducting copper pipes 41, and six through holes are formed in end faces of the heat conducting fins 42 for the heat conducting copper pipes 41 to penetrate and fix and connect the heat conducting copper pipes 41 into a whole. Meanwhile, the heat conductive fins 42 divide the ventilation gap into a plurality of ventilation openings 45. The heat conducting copper tube 41 in this embodiment is bent, and is difficult to directly pass through the through hole of the heat conducting fin 42 to realize connection and fixation, so that the heat conducting fin 42 can be divided into two pieces along the center line of the through hole, and when the heat conducting copper tube 41 is installed and fixed, the two pieces of heat conducting fin 42 are spliced into a whole, and the heat conducting copper tube 41 is fixed in the through hole formed by the two pieces of heat conducting fin 42. A

In order to fully utilize the refrigeration panel 4 in this embodiment for refrigeration, that is, the overlapping area between the refrigeration panel 4 and the electric fan 5 along the air draft direction of the electric fan 5 needs to be maximized, the rotating shafts of the refrigeration panel 4 and the electric fan 5 are arranged coaxially, and a through hole 46 is arranged in the middle of the cooling fan refrigeration panel 4 and used for avoiding the motor 51 of the electric fan 5, the area of the through hole 46 is slightly smaller than the axial end area of the motor 51 on the electric fan 5, the purpose of the arrangement is that the cost is increased due to the blocking of the motor 51, if a heat conduction material is arranged in the middle, and the refrigeration effect cannot be achieved in the part, so that unnecessary heat loss is caused.

Example 2: as shown in fig. 5, the difference from embodiment 1 is that a communication passage 446 and a plurality of partition plates 445 are provided in the first water-cooling head 44 in this embodiment, the partition plates 445 divide the interior of the water-cooling head into a plurality of cavities, the communication passage 446 penetrates the partition plates 445 from the middle of the partition plates 445 to divide the partition plates 445 into two parts and communicate the cavities between the partition plates 445, and the inlet 441 and the outlet 442 of the first water-cooling head 44 are provided on the outermost cavities in the direction of the communication passage 446, respectively. The cold water enters from the inlet 441 and fills the first water cooling head 44 through the communication passage 446, and when the cold water continues to enter from the inlet 441, water pressure is generated to send out the water in the first water cooling head 44 from the outlet 442.

A plurality of heat transfer pins 444 are vertically provided on the sidewall of each partition plate 445 to increase the contact area and increase the heat transfer rate.

Example 3: as shown in fig. 6, the difference from embodiment 1 or 2 is that the heat conducting fins 42 in this embodiment are arranged in an arc shape and form a spiral structure on the refrigeration panel 4, wherein the heat conducting fins 42 are inclined toward one end of the spiral bend, and the spiral direction of the spiral structure is the same as the rotation direction of the electric fan 5. Through the structure that is the spiral and the heat conduction fin 42 setting of slope for the air through the conducting strip produces the spiral, makes the air take place to mix, reaches the effect that the cold and hot degree, the humidity that blow off the air are all more even.

Example 4: as shown in fig. 7 to 9, the difference from embodiment 3 is that a plurality of water locking grooves 421 are disposed on both side end surfaces of the heat conducting fins 42 in this embodiment, and both ends of the water locking grooves 421 penetrate through both end portions of the heat conducting fins 42 in the length direction, so that condensed water in the water locking grooves 421 can flow out of the water locking grooves 421, and the problem that the water locking grooves 421 fail due to busy filling of the water locking grooves 421 with the condensed water is avoided. The cross section of the water locking groove 421 is U-shaped, V-shaped or arc-shaped, referring to fig. 9, the cross section is U-shaped in this embodiment.

Example 5: a cooling fan, as shown in fig. 1 and 10, comprises an air draft shell 2, an electric fan 5 and a refrigerating device, wherein the electric fan 5 comprises an air blowing end and a negative pressure end, and the negative pressure end is the end which generates negative pressure air draft when the fan rotates; the air blowing end is the end of air blowing, the air is sucked from the negative pressure end and blown out from the air blowing end, the refrigerating device comprises a water tank 6 and any refrigerating panel 4 in the above embodiment 1-2, the refrigerating panel 4 is positioned at the negative pressure end of the electric fan 5, and the first water cooling head 44 on the refrigerating panel is arranged back to the electric fan 5. Wherein the electric fan 5 and the refrigeration panel 4 are coaxially arranged within the ventilation housing 2.

Referring to fig. 10 to 12, a water path circulation pipe including four cooling pipes 61 and four return pipes 62 is connected between the water tank 6 and the first water-cooling head 44 on the refrigerating panel 4, the cooling pipes 61 connecting the cold water outlet 442 and the inlet 441 of the first water-cooling head 44 for feeding the water in the water tank 6 into the first water-cooling head 44; the return pipe 62 is connected with a hot water inlet 441 and an outlet 442 of the first water-cooling head 44 and used for returning hot water in the first water-cooling head 44 to the water tank 6 for cooling to realize circulation, and the return pipe 62 is further provided with a circulating water pump 8 and four air-cooled coolers 7, the circulating water pump 8 is fixed on the water tank 6 and used for providing circulating power for water in the water path circulating pipeline, the four air-cooled coolers 7 respectively air-cool the hot water sent out from the outlets 442 of the four first water-cooling heads 44, so that the phenomenon that the temperature of the water in the water tank 6 is increased due to overhigh temperature of the return water to further affect the water cooling effect of the first water-cooling heads 44 is avoided, and the water after air-cooling returns to the water tank 6 through the circulating.

Referring to fig. 12, a second cooling plate is further disposed on the outer wall of the water tank 6, and a cooling surface of the second cooling plate penetrates through the outer wall of the water tank 6 to contact with water in the water tank 6. Referring to fig. 13, a second water cooling head 9 is disposed on the cold surface of the second cooling plate, the shape and structure of the second water cooling head 9 are the same as those of the first water cooling head 44, the second water cooling head 9 and the cold water outlet 442 of the water tank 6 are connected by a pipeline, two cold water outlets 442 on the water tank 6 are disposed, the two cold water outlets 442 are communicated and branched, and one end of each of the four cooling tubes 61 is combined two by two and then respectively connected to the two cold water outlets 442.

Wherein, as shown in fig. 1, the water tank 6 is arranged in a casing 1, the inner wall of the casing 1 is further adhered with silencing cotton for eliminating noise generated by the air-cooled cooler 7, and the bottom of the casing 1 is provided with four rollers 13 for facilitating the movement of the cooling fan.

A refrigeration button 11, a heating button 12, a cold temperature regulator and a hot temperature regulator 121 are arranged on the casing 1, wherein the cold temperature regulator comprises a first temperature regulating knob 111 and a second temperature regulating knob 112, the first temperature regulating knob 111 is used for controlling the temperature of the first refrigeration piece 43 and the temperature of the second refrigeration piece, and the second temperature regulating knob 112 is used for controlling the air-cooled cooler 7. In the scheme, heating can be realized by changing the current direction by utilizing the cold-heat conversion of the refrigerating sheet, the principle is that the prior art is not elaborated in detail, and a heating plate can be additionally arranged for heating. In addition, the temperature control can also be controlled in a display screen mode and connected with the Internet to realize remote or wireless control.

The working principle is as follows: when the electric fan 5 is started and the refrigerating device is started, the first refrigerating sheet 43 and the second refrigerating sheet start to refrigerate. The second refrigeration piece is at the refrigerated while, circulating water pump 8 starts to draw water and carries out water-cooling circulation to first water-cooling head 44, and the water in water tank 6 gets into from the import 441 of second water-cooling head 9 this moment, and when second water-cooling head 9 cooled the water in water tank 6, carry out secondary cooling to the water of taking out through second water-cooling head 9, further reduce the temperature, and let into the pipeline in two cold water export 442 from the export 442 of second water-cooling head 9 and shunt, send into four first water-cooling heads 44 respectively through four cooling tubes 61 at last and carry out water-cooling to first water-cooling head 44.

The water heated by the first water cooling head 44 is sent to the four air-cooled coolers 7 through the four return pipes 62 to be cooled, and then is gathered at the hot water inlet 441 to return to the water tank 6 to be cooled, and the temperature of the hot water returning to the water tank 6 is reduced through the air-cooled coolers 7, so that the influence of the higher temperature of the return water on the temperature of the water in the water tank 6 and the cooling effect of the second chilling plate is avoided, and the temperature of the water in the water tank 6 is ensured to be in a lower state.

Example 6: as shown in fig. 10, the difference from embodiment 5 is that the cooling panel 4 in embodiment 3 or 4 is provided in the present embodiment, and the spiral direction of the spiral structure on the cooling panel 4 is the same as the rotation direction of the electric fan 5.

Through the spiral direction setting that sets up helical structure in this embodiment, not only can avoid reducing the mixed air effect that helical structure produced because the centrifugal force that produces when rotatory with electric fan 5 is opposite, and can combine with this centrifugal force, strengthen the mixed effect of the air between electric fan 5 and refrigeration panel 4 for its cold and hot, the humidity of the air that blows off is all more even effect.

Example 7: as shown in fig. 14, the difference from embodiment 5 or 6 lies in that a water pan 22 and a humidifying device 3 are further disposed on the cooling fan, wherein the ventilation housing 2 is cylindrical, an air duct is disposed therein, the electric fan 5 and the refrigeration panel 4 are both disposed in the air duct, and the bottom of the air duct forms the water pan 22 on the ventilation housing 2 for receiving condensed water condensed on the refrigeration panel 4.

The humidifying device 3 is arranged below the water receiving tray 22, a water through hole 221 is formed in the bottom end of the water receiving tray 22 and communicated with the humidifying device 3, and condensed water received by the water collecting tray is automatically sent into the humidifying device 3 under the action of gravity. In this embodiment, the humidifying device 3 is an ultrasonic humidifier.

The inside of the ventilation casing 2 is provided with a spray pipe 23, the spray pipe 23 is provided with a plurality of spray ports 231, the spray ports 231 are arranged on the inner wall of the ventilation duct and are uniformly arranged around the rotation axis of the electric fan 5, and the spray ports 231 are positioned between the electric fan 5 and the refrigeration panel 4. The spray opening 231 is connected with the humidifying device 3 through a pipeline, so that water mist generated by the humidifying device 3 is guided through the pipeline and then sent to a position between the electric fan 5 and the refrigerating panel 4 through the spray opening 231, and the water mist is mixed with air between the electric fan 5 and the refrigerating panel 4.

In addition, in order to make the blown air healthier and safer, an ultraviolet sterilizing lamp and an anion generator are installed in the atomization box of the humidifying device 3, a filter screen 26 is installed at one end of the ventilation casing, which is provided with a refrigeration panel, the filter screen 26 can be a single-layer filter screen or a filter screen assembly, and the refrigeration panel is located between the filter screen 26 and the electric fan. The two sides of the air duct are both provided with a protection screen plate 21, and the filter screen 26 is positioned at the inner side of the protection screen plate 21.

When the air conditioner is used, because the refrigeration panel 4 is low in temperature and can condense out condensed water on the surface of the refrigeration panel, the water receiving tray 22 collects the condensed water dripping from the refrigeration panel 4, the condensed water flows into the humidifying device 3 through the water through hole 221 to be atomized, and the condensed water is mixed with air between the electric fan 5 and the refrigeration panel 4 through the atomizing nozzle 231, so that the blown air has certain humidity, and the cold air is prevented from being too dry.

Example 8: as shown in fig. 15, the difference from embodiment 6 is that the water through hole 221 of the water receiving tray 22 is connected to the water tank 6 through a water collecting pipe 24, the water in the water tank 6 is connected to the humidifying device 3 through a water pumping pipe 25, and a water pumping pump 10 is provided on the water pumping pipe 25. Moreover, a liquid level sensor is arranged on the water tank 6 and used for detecting the water level in the water tank 6 and outputting a detection signal, and the water suction pump 10 responds to the detection signal; a water level sensor is provided in the humidifying device 3 and outputs a control signal, and the humidifying device 3 responds to the control signal.

As shown in fig. 16, in the present embodiment, the liquid level sensor is a floating ball type liquid level sensor, a detection signal is output by detecting the water level in the water tank 6 and compared in the comparator, and when the detection signal is greater than a preset value, the water pump 10 starts to supply water to the humidifying device 3; and when the detection signal is less than or equal to a preset value, controlling the water suction pump 10 to be closed. The working principle of the water level sensor is the same as that of the liquid level sensor, when the water level sensor detects that water exists in the humidifying device 3, the water level sensor outputs a control signal to control the humidifying device 3 to normally work, and when the stored water in the humidifying device 3 is used up, the water level sensor outputs a control signal again to stop the humidifying device 3 from working.

Compared with the embodiment 6, the water in the water tank 6 is used for spraying by the spraying device, and the water in the water tank 6 has lower temperature, so that the generated water mist also has lower temperature, and when the water mist is mixed with the air passing through the refrigerating panel 4, the double refrigerating effect can be achieved.

Claims

1. The utility model provides a cooling fan, includes electric fan (5), refrigerating plant and humidification device (3), electric fan (5) are including blowing end and negative pressure end, refrigerating plant includes water tank (6) and refrigeration panel (4) that are equipped with vent (45), characterized by: the refrigeration panel (4) is positioned at the negative pressure end of the electric fan (5), a plurality of first refrigeration sheets (43) and a plurality of first water cooling heads (44) attached to the hot surfaces of the first refrigeration sheets (43) are arranged on the refrigeration panel (4), the cold surfaces of the first refrigeration sheets (43) are attached to the refrigeration panel (4), and a waterway circulating pipeline is connected between the water tank (6) and the first water cooling heads (44); a water receiving tray (22) for receiving condensed water on the refrigeration panel (4) and sending the condensed water to the humidifying device (3) is arranged below the refrigeration panel (4);

the water tank (6) is provided with a cold water outlet (442), a hot water inlet (441) and a plurality of second refrigerating sheets; the water path circulating pipeline comprises a cooling pipe (61) and a return pipe (62), the cooling pipe (61) is connected with a cold water outlet (442) and the first water cooling head (44), the return pipe (62) is connected with a hot water inlet (441) and the first water cooling head (44), and a circulating water pump (8) and an air cooling cooler (7) are arranged on the return pipe (62); the cold surface of the second refrigeration sheet is arranged in the water tank (6);

the refrigeration panel (4) comprises a plurality of annularly closed heat conduction copper pipes (41) and a plurality of heat conduction fins (42), the cold surfaces of the first refrigeration sheets (43) are uniformly attached to the heat conduction copper pipes (41) around the axial lead of the copper pipes, the heat conduction copper pipes (41) attached to the cold surfaces are arranged flatly, a ventilation gap is formed between every two adjacent heat conduction copper pipes (41), the heat conduction fins (42) are connected to the heat conduction copper pipes (41) and are arranged in an intersecting manner with the heat conduction copper pipes (41), and the ventilation gaps are cut by the heat conduction fins (42) to form the ventilation openings (45); the ventilation gaps are arranged at two ends of the heat conduction copper pipe (41) and gradually enlarged towards the middle.

2. The cooling fan according to claim 1, wherein: the cooling fan also comprises an air ventilation shell (2) internally provided with an air duct, the electric fan (5) and the refrigeration panel (4) are arranged in the air duct, and the bottom of the air duct is arranged on the air ventilation shell (2) to form the water receiving disc (22); humidification device (3) evenly is equipped with a plurality of fog-spray outlets (231) around the axial lead of electric fan (5) on the ventiduct inner wall, just fog-spray outlet (231) are located between electric fan (5) and refrigeration panel (4).

3. The cooling fan according to claim 2, wherein: the water receiving tray (22) and the humidifying device (3) are both connected with the water tank (6), a water suction pump (10) used for supplying water into the humidifying device (3) is arranged between the humidifying device (3) and the water tank (6), a liquid level sensor is arranged on the water tank (6) and used for detecting the water level in the water tank (6) and outputting a detection signal, and the water suction pump (10) responds to the detection signal; a water level sensor is arranged in the humidifying device (3) and outputs a control signal, and the humidifying device (3) responds to the control signal.

4. The cooling fan according to claim 1 or 3, wherein: an ultraviolet sterilizing lamp and an anion generator are arranged in an atomizing box of the humidifying device (3).

5. The cooling fan according to claim 1, wherein: the heat conduction fins (42) are arranged in an arc shape and form a spiral structure on the refrigeration panel (4), and the heat conduction fins (42) are inclined towards one end of the spiral bending.

6. The cooling fan according to claim 5, wherein: the spiral direction of the spiral structure is the same as the rotation direction of the electric fan (5).

7. The cooling fan according to claim 5, wherein: the end face of the heat conduction fin (42) is provided with a water locking groove (421), and the water locking groove (421) is arranged along the length direction of the heat conduction fin (42).

8. The cooling fan according to claim 2, wherein: one end of the ventilation shell (2) provided with the refrigeration panel (4) is provided with a filter screen (26), and the refrigeration panel (4) is located between the filter screen (26) and the electric fan (5).