CN114976951A

CN114976951A - Summer outdoor built-in self-cooling distribution box and use method thereof

Info

Publication number: CN114976951A
Application number: CN202210706896.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2022-08-30
Also published as: CN112864902B; CN112864902A

Abstract

The invention provides a built-in self-cooling distribution box for outdoor use in summer and a use method thereof. This outdoor built-in self-cooling block terminal of using summer, according to the unable circumstances of continuously working at the high temperature environment that current block terminal exists, design out the liquid cold and air-cooled combination and automatically carry out the special construction that reacts to the high temperature to the effectual problem of unable cooling of having solved general block terminal in the extreme high temperature operational environment in summer and unable reacting to the high temperature.

Description

Summer outdoor built-in self-cooling distribution box and use method thereof

The invention discloses a divisional application of an outdoor built-in self-cooling distribution box in summer, which is filed on 2021, 02/05 and has an application number of CN 202110164007.7.

Technical Field

The invention relates to the technical field of distribution boxes, in particular to a summer outdoor built-in self-cooling distribution box and a using method thereof.

Background

The low-voltage electrical apparatus in the distribution box, by fuse, ac contactor, residual current action protector, condenser and strapping table, etc. The upper limit of the ambient air temperature does not exceed 40 ℃; the average value of the ambient air temperature for 24h does not exceed 35 ℃; the lower limit of the ambient air temperature is not lower than-5 ℃ or-25 ℃, when the distribution box runs outdoors, the distribution box not only generates high temperature under the direct irradiation of sunlight, but also generates heat during running, so that the temperature in the box body can reach more than 60 ℃ in high-temperature seasons in midsummer, and the temperature at the moment greatly exceeds the specified environmental temperature of the electric appliances.

The block terminal on the present market adopts natural forced air cooling's mode to carry out cooling treatment, in spring and autumn, the block terminal can normally work under the suitable condition of outdoor temperature, but when reaching the extreme weather in summer, outdoor temperature can reach forty degrees, ground temperature can reach sixty degrees or even higher, outdoor block terminal is because the shell protection of needs high strength, generally all adopt the metal as the shell, metal casing heat conduction is fast and sealed airtight, this use that leads to outdoor block terminal can a lot of potential safety hazards appear, outdoor high temperature probably causes the unable normal demonstration of block terminal, short circuit even catches fire.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a summer outdoor built-in self-cooling distribution box and a use method thereof, and solves the problems that the distribution box is cooled only by natural wind and cannot be effectively cooled in summer when a common distribution box is operated under the condition of outdoor extreme high temperature in summer.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an outdoor built-in self-cooling block terminal of using in summer and application method thereof, includes supporting mechanism, liquid cooling mechanism, air-cooled mechanism and actuating mechanism, be provided with liquid cooling mechanism, air-cooled mechanism and actuating mechanism in supporting mechanism's the inner chamber respectively, actuating mechanism fixed connection is in the middle part of the inboard inner wall of supporting mechanism, air-cooled mechanism fixed connection is in actuating mechanism's the outside, liquid cooling mechanism fixed connection is in the outside of air-cooled mechanism.

Preferably, the supporting mechanism comprises a box body, a ventilation pipe is inserted into the middle of the upper surface of the box body through a hole groove, a fixed plate is fixedly connected to the inner side of the inner wall of the box body, and a water storage tank is fixedly connected to the bottom of the fixed plate.

Preferably, liquid cooling mechanism includes the cooling return bend, cooling return bend fixed connection is on the surface of fixed plate, the quantity of cooling return bend is two, and two cooling return bends are about the central line symmetry of fixed plate, the spiral pipe has been cup jointed to the one end of cooling return bend, the quantity of spiral pipe is two, and two spiral pipes are the heliciform and communicate with each other through the connecting pipe, the one end that the spiral pipe was kept away from to the cooling return bend has cup jointed water sucking head and water outlet respectively, water sucking head and water outlet are pegged graft in the both sides of water storage box upper surface through the hole groove respectively.

Preferably, the air cooling mechanism includes the blast pipe, blast pipe fixed connection is on the surface of fixed plate, the quantity of blast pipe is two, and the central line symmetry about two blast pipes, the bottom of blast pipe runs through the lower surface of water storage box and extends to the outside of water storage box lower surface, the top of blast pipe has cup jointed to the branch to the pipe, divide into two pipelines to the inner chamber of pipe, and the export opposite direction of two pipelines, it expands the oral head to have cup jointed to the surface of pipe, expand oral surface overlap joint the surface of spiral pipe, the one end of blast pipe inner wall is connected with the fan through the motor rotation that sets up in dead lever one end.

Preferably, the spiral pipe includes the cooling tube, be provided with the cooling film in the inner chamber of cooling tube, the cooling film is concave type circular-arc, and the cooling film is the polymer semipermeable membrane.

Preferably, the flaring head is including flaring wall, the flaring wall cup joints on the surface to the pipe, the flaring wall is the polymer pellicle, the equal fixedly connected with wind-guiding bent plate in both sides of flaring wall inner wall, the wind-guiding bent plate is protruding type circular arc, and dislocation set in the vertical direction of both sides wind-guiding bent plate.

Preferably, the fan includes initiative pivot and pressure chamber, the one end of pressure chamber is passed through the hole and is pegged graft in one side of air supply pipe inner wall, the inner chamber of pressure chamber is pegged graft and is had the promotion piston, the bottom at the air supply pipe inner chamber is connected through the motor rotation that sets up in dead lever one end to the initiative pivot, the one end of initiative pivot is rotated through the pivot and is connected with the air supply blade, the one end fixedly connected with push rod of air supply blade is kept away from in the initiative pivot, the quantity of push rod is two, and two push rods are about the central symmetry of initiative pivot, the one end that the initiative pivot was kept away from to the push rod overlaps mutually with the promotion piston.

Preferably, actuating mechanism includes communicating pipe, communicating pipe passes through buckle fixed connection at the middle part on fixed plate surface, the both ends of communicating pipe are height dislocation set, the both ends of communicating pipe are all pegged graft and are had the water-sealed membrane, the water-sealed membrane is the polymer pellicle, the lower mouthful one end of communicating pipe is pegged graft and is had the circular telegram kickboard, the one end that is close to the circular telegram kickboard of communicating pipe is through return bend fixedly connected with storage balloon.

(III) advantageous effects

(1) According to the invention, the cooling elbow is arranged, so that cooling water flows in the inner cavity of the cooling elbow, the cooling elbow is in a curved loop shape, the contact area between the cooling elbow and the box body is increased, the cooling elbow can more fully absorb heat in the inner cavity of the box body and is taken away along with the flow of the cooling water in the cooling elbow, the effect of reducing the temperature of the inner cavity of the box body is achieved, the cooling water in the cooling elbow can fully exchange heat by matching with the water storage tank to supplement the cooling water for the cooling elbow, and the short circuit fire caused by local overheating of the distribution box is prevented.

(2) According to the invention, the fan is arranged, active air cooling is realized in the inner cavity of the box body, heat in the inner cavity of the box body is taken away through the flowing of air, the air cooling efficiency is improved by matching with the air supply pipe, the inner wall of the air supply pipe is arranged in multiple sections, the diameter of the air supply pipe is gradually reduced from bottom to top, and wind power generated by the rotation of the fan passes through the air supply pipe with the diameter being continuously reduced, so that the effect of accelerating air circulation is achieved, the heat taken away by air cooling is increased, and the cooling effect is improved.

(3) The spiral pipe and the flaring head are arranged, so that the cooling efficiency is improved, the spiral pipe is spirally arranged, cooling water is gathered at the spiral pipe, then the heat of the cooling water is gathered at the spiral pipe, and the flaring head is matched to be outwards flared, so that the contact area between the cooling water and the air when the air blows over the flaring head is increased, the heat in the inner cavity of the box body is gathered at the spiral pipe, and the heat is discharged in a large area through the flaring head, and the cooling efficiency is greatly improved.

(4) The invention guides the wind generated by the fan into the cooling water by arranging the wind guide bent plate, further promotes the air to flow and take away the heat in the cooling water, and ensures that the wind enters the cooling water along the surface of the wind guide bent plate when contacting the wind guide bent plate by matching with the cooling film and the flaring wall, and the air continues to flow upwards under the limitation of the cooling film, and the wind is directly contacted with the cooling water, so that the temperature of the cooling water is rapidly reduced.

(5) The push piston and the pressure cavity are arranged, and gas is filled into the inner cavity of the water storage tank, so that the inner cavity of the water storage tank is in a high-pressure state, the circulation speed of cooling water in the cooling bent pipe is accelerated, the heat exchange of the cooling water at the spiral pipe is more frequent, more heat in the inner cavity of the tank body is taken away, and the effect of accelerating cooling is achieved.

(6) The communicating pipe is arranged to react with the temperature of the inner cavity of the box body, when the temperature of the inner cavity of the box body is too high, the gas in the inner cavity of the gas storage ball expands due to high temperature, the gas expands to extrude the electrified floating plate, so that the electrified floating plate moves downwards, the electrodes are communicated, and the fan starts to rotate.

(7) According to the invention, a special structure which combines liquid cooling and air cooling and automatically reacts to high temperature is designed according to the condition that the existing distribution box can not continuously work in a high-temperature environment, so that the problems that the common distribution box can not be cooled and can not react to high temperature in the summer extreme high-temperature working environment are effectively solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a liquid cooling mechanism according to the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is an enlarged view of the structure of FIG. 2 at B in accordance with the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 2 at C.

Wherein, 1, a supporting mechanism; 2. a liquid cooling mechanism; 3. an air cooling mechanism; 4. a starting mechanism; 11. a box body; 12. a vent pipe; 13. a water storage tank; 14. a fixing plate; 21. cooling the bent pipe; 22. a spiral tube; 23. a suction head; 24. a water outlet head; 221. a cooling tube; 222. cooling the film; 31. an air supply pipe; 32. an expander head; 33. branch pipes; 34. a fan; 321. a flared wall; 322. an air guide bent plate; 341. a driving rotating shaft; 342. an air supply blade; 343. a push rod; 344. pushing the piston; 345. a pressure chamber; 41. a communicating pipe; 42. sealing a water film; 43. electrifying the floating plate; 44. and (4) storing the balloon.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings 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.

As shown in fig. 1-5, the embodiment of the invention provides a built-in self-cooling distribution box for outdoor use in summer and a use method thereof, the built-in self-cooling distribution box comprises a supporting mechanism 1, a liquid cooling mechanism 2, an air cooling mechanism 3 and a starting mechanism 4, wherein the liquid cooling mechanism 2, the air cooling mechanism 3 and the starting mechanism 4 are respectively arranged in an inner cavity of the supporting mechanism 1, the starting mechanism 4 is fixedly connected to the middle part of the inner side wall of the supporting mechanism 1, the air cooling mechanism 3 is fixedly connected to the outer side of the starting mechanism 4, and the liquid cooling mechanism 2 is fixedly connected to the outer side of the air cooling mechanism 3.

The supporting mechanism 1 comprises a box body 11, a ventilation pipe 12 is inserted in the middle of the upper surface of the box body 11 through a hole groove, a fixing plate 14 is fixedly connected to the inner side of the inner wall of the box body 11, a water storage tank 13 is fixedly connected to the bottom of the fixing plate 14, the liquid cooling mechanism 2 comprises cooling bent pipes 21, the cooling bent pipes 21 are fixedly connected to the surface of the fixing plate 14, the number of the cooling bent pipes 21 is two, the two cooling bent pipes 21 are symmetrical about the center line of the fixing plate 14, a spiral pipe 22 is sleeved at one end of each cooling bent pipe 21, the number of the spiral pipes 22 is two, the two spiral pipes 22 are in a spiral shape and are communicated through a connecting pipe, a water suction head 23 and a water outlet head 24 are respectively sleeved at one end of each cooling bent pipe 21, the end of each cooling bent pipe 22 is far away from each spiral pipe, the water suction head 23 and the water outlet head 24 are respectively inserted in the two sides of the upper surface of the water storage tank 13 through the hole groove, the air cooling mechanism 3 comprises an air supply pipe 31, and the air supply pipe 31 is fixedly connected to the surface of the fixing plate 14, the quantity of blast pipe 31 is two, and the central line that two blast pipes 31 are about is symmetrical, the bottom of blast pipe 31 runs through the lower surface of water storage box 13 and extends to the outside of water storage box 13 lower surface, the top of blast pipe 31 cup joints to branch to pipe 33, divide into two pipelines to the inner chamber of pipe 33, and the export opposite direction of two pipelines, the outer surface of branch pipe 33 has cup jointed the mouth of expanding 32, the outer surface overlap joint of the mouth of expanding 32 is at the surface of spiral pipe 22, the one end of blast pipe 31 inner wall is rotated through the motor that sets up in dead lever one end and is connected with fan 34.

The spiral pipe 22 comprises a cooling pipe 221, a cooling film 222 is arranged in an inner cavity of the cooling pipe 221, the cooling film 222 is in a concave arc shape, the cooling film 222 is a polymer semi-permeable membrane, the flaring head 32 comprises a flaring wall 321, the flaring wall 321 is sleeved on the outer surface of the branch pipe 33, the flaring wall 321 is a polymer semi-permeable membrane, two sides of the inner wall of the flaring wall 321 are fixedly connected with air guide bent plates 322, the air guide bent plates 322 are in a convex arc shape, the air guide bent plates 322 on two sides are arranged in a staggered mode in the vertical direction, the fan 34 comprises a driving rotating shaft 341 and a pressure chamber 345, one end of the driving rotating shaft 345 is inserted into one side of the inner wall of the air supply pipe 31 through a hole, the inner cavity of the pressure chamber 345 is inserted with a pushing piston 344, the driving rotating shaft 341 is rotatably connected to the bottom of the inner cavity of the air supply pipe 31 through a motor arranged at one end of a fixing rod, one end of the driving rotating shaft 341 is rotatably connected with a blade 342 through a rotating shaft, one end of the driving rotating shaft 341 far away from the air supply blade 342 is fixedly connected with a pushing rod 343, the quantity of push rod 343 is two, and two push rods 343 are central symmetry about initiative pivot 341, the one end that initiative pivot 341 was kept away from to push rod 343 overlaps with promotion piston 344 mutually, actuating mechanism 4 includes communicating pipe 41, communicating pipe 41 is through buckle fixed connection at the middle part on fixed plate 14 surface, the both ends of communicating pipe 41 are height dislocation set, the both ends of communicating pipe 41 are all pegged graft and are had water-sealing membrane 42, water-sealing membrane 42 is the polymer pellicle, the lower one end of mouth of communicating pipe 41 is pegged graft and is had circular telegram kickboard 43, the elbow fixedly connected with storage balloon 44 is passed through to the one end that communicating pipe 41 is close to circular telegram kickboard 43.

When the distribution box is used, the distribution box works outdoors in summer, because the box body 11 is in a semi-closed state, the temperature of the inner cavity of the box body 11 rises, when the temperature reaches forty ℃, the temperature of air in the inner cavity of the air storage ball 44 is far higher than that of air at one end of the communication pipe 41, the air in the inner cavity of the air storage ball 44 expands and extrudes the electrified floating plate 43 to move downwards, the electrified floating plate 43 is conductive, the electrode at one end, close to the water sealing film 42, of the communication pipe 41 is communicated, the cooling system of the distribution box is electrified, the fan 34 starts to rotate, the air in the inner cavity of the air supply pipe 31 is driven by the rotation of the fan 34 to form continuous air flow from bottom to top, the air supply pipe 31 is in a cylindrical barrel shape with the diameter gradually reduced from bottom to top, the air flow in the air supply pipe 31 is gradually accelerated, the effect of accelerating the air flow is achieved, the air flow is rapid, and the heat in the inner cavity of the box body 11 is taken away by the circulated air, meanwhile, cooling water contained in the cooling bent pipe 21 flows in the bent cooling bent pipe 21, the temperature in the inner cavity of the box body 11 is sufficiently taken away, the bending arrangement of the cooling bent pipe 21 enables the contact area of the cooling water and the fixed plate 14 to be larger, the cooling water in the cooling bent pipe 21 enters the spiral pipe 22, the spiral shape of the spiral pipe 22 enables the cooling water to be gathered at the spiral pipe 22, meanwhile, heat in the inner cavity of the box body 11 is gathered at the spiral pipe 22 along with the flowing of the cooling water, at the moment, the rotation of the fan 34 enables the air in the inner cavity of the air supply pipe 31 to flow more rapidly, the air reaches the fastest speed at the branch pipe 33 by matching with the barrel shape of which the diameter is gradually reduced from bottom to top of the air supply pipe 31, the contact area of the air and the cooling water at the flaring wall 321 is enlarged by matching with the flaring wall 321, the inner cavity of the branch pipe 33 is divided into two pipelines, and the outlet directions of the two pipelines are opposite, when the air flows through the branch pipe 33, the air is divided into two flows which flow in the same direction and form an annular spiral, and meanwhile, when the air flows through the air guide bent plate 322 and the cooling film 222, because the air guide bent plate 322 and the cooling film 222 are polymer semi-permeable membranes, the air enters the cooling water under the limitation of the air guide bent plate 322 and then moves upwards to take away the heat in the inner cavity of the box body 11, after the heat in the inner cavity of the box body 11 is taken away, the temperature of the distribution box is reduced, the air volume in the inner cavity of the air storage ball 44 is reduced, the fan 34 is powered off, the power resource is saved, and the cooling of the distribution box is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a summer is outdoor with built-in self-cooling block terminal, includes supporting mechanism (1), liquid cooling mechanism (2), air-cooled mechanism (3) and actuating mechanism (4) its characterized in that: a liquid cooling mechanism (2), an air cooling mechanism (3) and a starting mechanism (4) are respectively arranged in an inner cavity of the supporting mechanism (1), the starting mechanism (4) is fixedly connected to the middle part of the inner wall of the inner side of the supporting mechanism (1), the air cooling mechanism (3) is fixedly connected to the outer side of the starting mechanism (4), and the liquid cooling mechanism (2) is fixedly connected to the outer side of the air cooling mechanism (3);

the liquid cooling mechanism (2) comprises cooling bent pipes (21), the cooling bent pipes (21) are fixedly connected to the surface of the fixing plate (14), the number of the cooling bent pipes (21) is two, the two cooling bent pipes (21) are symmetrical about the center line of the fixing plate (14), spiral pipes (22) are sleeved at one ends of the cooling bent pipes (21), the number of the spiral pipes (22) is two, the two spiral pipes (22) are in a spiral shape and are communicated with each other through connecting pipes, a water suction head (23) and a water outlet head (24) are respectively sleeved at one end, far away from the spiral pipes (22), of each cooling bent pipe (21), and the water suction head (23) and the water outlet head (24) are respectively inserted into two sides of the upper surface of the water storage box (13) through hole grooves;

the air cooling mechanism (3) comprises two air supply pipes (31), the air supply pipes (31) are fixedly connected to the surface of the fixing plate (14), the number of the air supply pipes (31) is two, the two air supply pipes (31) are symmetrical about the center line, the bottoms of the air supply pipes (31) penetrate through the lower surface of the water storage box (13) and extend to the outside of the lower surface of the water storage box (13), branch pipes (33) are sleeved at the tops of the air supply pipes (31), the inner cavities of the branch pipes (33) are divided into two pipelines, the outlet directions of the two pipelines are opposite, expansion heads (32) are sleeved on the outer surfaces of the branch pipes (33), the outer surfaces of the expansion heads (32) are overlapped on the outer surface of the spiral pipe (22), and one end of the inner wall of each air supply pipe (31) is rotatably connected with a fan (34) through a motor arranged at one end of the fixing rod;

actuating mechanism (4) are including communicating pipe (41), communicating pipe (41) are through buckle fixed connection at the middle part on fixed plate (14) surface, the both ends of communicating pipe (41) are height dislocation set, the both ends of communicating pipe (41) are all pegged graft and are had water-sealed film (42), water-sealed film (42) are the polymer pellicle, the lower mouthful one end of communicating pipe (41) is pegged graft and is had circular telegram kickboard (43), return bend fixedly connected with storage balloon (44) is passed through to the one end that communicating pipe (41) are close to circular telegram kickboard (43).

2. The outdoor self-cooling distribution box with built-in summer according to claim 1, wherein: the supporting mechanism (1) comprises a box body (11), a ventilation pipe (12) is inserted in the middle of the upper surface of the box body (11) through a hole groove, a fixing plate (14) is fixedly connected to the inner side of the inner wall of the box body (11), and a water storage tank (13) is fixedly connected to the bottom of the fixing plate (14).

3. The outdoor self-cooling built-in distribution box for summer as claimed in claim 2, wherein: the spiral pipe (22) comprises a cooling pipe (221), a cooling film (222) is arranged in an inner cavity of the cooling pipe (221), the cooling film (222) is concave and arc-shaped, and the cooling film (222) is a polymer semipermeable membrane.

4. The outdoor self-cooling built-in distribution box for summer as claimed in claim 3, wherein: expand oral (32) including flaring wall (321), flaring wall (321) cup joint on the surface of branch pipe (33), flaring wall (321) are the polymer semipermeable membrane, the equal fixedly connected with wind deflector (322) in both sides of flaring wall (321) inner wall, wind deflector (322) are protruding type circular arc, and dislocation set in the vertical direction of both sides wind deflector (322).

5. The outdoor self-cooling distribution box with built-in summer according to claim 4, wherein: the fan (34) comprises an active rotating shaft (341) and a pressure chamber (345), one end of the pressure chamber (345) is inserted into one side of the inner wall of the blast pipe (31) through a hole, a pushing piston (344) is inserted into the inner cavity of the pressure chamber (345), the active rotating shaft (341) is rotatably connected to the bottom of the inner cavity of the blast pipe (31) through a motor arranged at one end of a fixed rod, one end of the active rotating shaft (341) is rotatably connected with a blast blade (342) through a rotating shaft, one end of the active rotating shaft (341) far away from the blast blade (342) is fixedly connected with push rods (343), the number of the push rods (343) is two, the two push rods (343) are symmetrical about the center of the active rotating shaft (341), and one end of the push rod (343) far away from the active rotating shaft (341) is overlapped with the pushing piston (344).

6. The self-cooling built-in distribution box for outdoor use in summer and the use method thereof as claimed in any one of claims 1 to 5, wherein: when the distribution box is used, the distribution box works outdoors in summer, because the box body 11 is in a semi-closed state, the temperature of the inner cavity of the box body 11 rises, when the temperature reaches forty degrees, the temperature of the air in the inner cavity of the air storage ball 44 is far higher than the temperature of the air at one end of the communication pipe 41, the air in the inner cavity of the air storage ball 44 expands and extrudes the electrified floating plate 43 to move downwards, the electrified floating plate 43 conducts electricity, the electrode at one end, close to the water sealing film 42, of the communication pipe 41 is communicated, the cooling system of the distribution box starts to be electrified, the fan 34 starts to rotate, the air in the inner cavity of the air supply pipe 31 is driven by the rotation of the fan 34 to form continuous air flow from bottom to top, the air supply pipe 31 is in a barrel shape with the diameter gradually reduced from bottom to top, the flow of the air in the air supply pipe 31 is gradually accelerated, the effect of accelerating the air flow is achieved, the rapid air flow, and the heat in the inner cavity of the box body 11 is taken away by the circulated air, meanwhile, cooling water contained in the cooling bent pipe 21 flows in the bent cooling bent pipe 21, the temperature in the inner cavity of the box body 11 is sufficiently taken away, the bending arrangement of the cooling bent pipe 21 enables the contact area of the cooling water and the fixed plate 14 to be larger, the cooling water in the cooling bent pipe 21 enters the spiral pipe 22, the spiral shape of the spiral pipe 22 enables the cooling water to be gathered at the spiral pipe 22, meanwhile, heat in the inner cavity of the box body 11 is gathered at the spiral pipe 22 along with the flowing of the cooling water, at the moment, the rotation of the fan 34 enables the air in the inner cavity of the air supply pipe 31 to flow more rapidly, the air reaches the fastest speed at the branch pipe 33 by matching with the barrel shape of which the diameter is gradually reduced from bottom to top of the air supply pipe 31, the contact area of the air and the cooling water at the flaring wall 321 is enlarged by matching with the flaring wall 321, the inner cavity of the branch pipe 33 is divided into two pipelines, and the outlet directions of the two pipelines are opposite, this makes the air flow through when dividing to pipe 33, divide into two strands and direction flow and form annular spiral, and when the air flow passed through wind-guiding bent plate 322 and cooling film 222 simultaneously, because wind-guiding bent plate 322 and cooling film 222 are the polymer semipermeable membrane, make the air move up after getting into inside the cooling water under the restriction of wind-guiding bent plate 322, take away the heat of box 11 inner chamber, after the heat of box 11 inner chamber is taken away, the block terminal temperature reduces, the air volume of storage balloon 44 inner chamber reduces, fan 34 can cut off the power supply and practice thrift electric power resource, the cooling to the block terminal is accomplished.