A shunt with heat dissipation function

Abstract

The present invention relates to the technical field of cooling the flow diverter, and discloses a flow diverter with a heat dissipation function, comprising a flow diverter body and a copper busbar, wherein a first heat sink is arranged on the copper busbar, a first cooling cavity is arranged in the first heat sink, a rotating shaft is arranged to rotate outside the first heat sink, a fan blade is convexly arranged on the rotating shaft, a rotating structure drives the rotating shaft to rotate, a condenser is arranged in the first cooling cavity, a second heat sink is arranged below the first heat sink, a second cooling cavity and a third cooling cavity which are connected with two ends of the condenser are arranged in the second heat sink, a driving structure drives a second coolant to flow between the second cooling cavity, the condenser and the third cooling cavity, a second cooling structure is arranged below the second heat sink, and without the need for additional power drive, only by utilizing the heat generated by the flow diverter body, the first coolant can absorb heat, the rotating shaft and the fan blades can rotate to accelerate the flow rate to dissipate heat, the second coolant can flow to exchange heat with the first coolant, and the second coolant can be cooled, thereby quickly reducing the temperature of the flow diverter body.

Description

Technical Field

[0001] The present invention relates to the technical field of shunt cooling, and in particular to a shunt with a heat dissipation function. Background Art

[0002] A shunt is an instrument used to measure direct current. It is made based on the principle that voltage is generated across a resistor when direct current passes through it. Most shunts will generate a lot of heat under the Joule effect because they have a certain resistance value after being loaded with current. If the heat cannot be dissipated in time, the resistance value will change, affecting the accuracy of the shunt.

[0003] A Chinese patent with application number 202222627735.X discloses a modular diverter, including a diverter body, a heat sink is arranged at the bottom of the diverter body, the diverter body includes two connecting plates and a resistor plate, the resistor plate is arranged between the two connecting plates, and terminals are arranged on both sides of the connecting plates. The heat sink includes a heat sink and a heat conducting plate, the heat conducting plate is fixedly connected to both ends of the resistor plate and between the two connecting plates, and the heat sink is fixedly connected to the bottom of the heat conducting plate.

[0004] In the above solution, the heat conducting plate can conduct the heat and use the heat sink to dissipate the heat, so as to quickly dissipate the heat of the diverter body to the surrounding environment. However, only dissipating the heat naturally to the surrounding environment through the heat sink will result in low heat dissipation efficiency, and when the temperature of the diverter body is high, the temperature of the diverter body cannot be reduced in time. Summary of the invention

[0005] The present invention aims to address the shortcomings of the prior art that the heat is naturally dissipated to the surrounding environment only through heat sinks, the heat dissipation efficiency is low, and the temperature of the diverter cannot be reduced in time when the temperature of the diverter is high. A diverter with a heat dissipation function that can quickly reduce the temperature of the diverter is provided.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0007] A shunt with a heat dissipation function comprises a shunt body, copper bars are connected to both ends of the shunt body, a heat dissipation structure is arranged on the copper bars, the heat dissipation structure comprises a first heat dissipation block which is in thermal contact with the copper bars and a first cooling cavity arranged inside the first heat dissipation block for storing a first cooling liquid, a rotating shaft is sealed and rotatably arranged on a side of the first heat dissipation block close to the shunt body, a fan blade is vertically protruded outwardly on the outer ring wall of the rotating shaft, a rotating structure for driving the rotating shaft to rotate is arranged in the first heat dissipation block, the rotating structure is controlled by a first vapor formed by the first cooling liquid being heated and evaporated, a first cooling structure for lowering the temperature of the first cooling liquid is arranged below the first heat dissipation block, and a first cooling structure for lowering the temperature of the first cooling liquid is arranged below the first heat dissipation block. A cooling structure includes a second heat dissipation block arranged below the first heat dissipation block, a second cooling chamber and a third cooling chamber arranged in the second heat dissipation block for storing a second coolant, and a condenser arranged in the first cooling chamber, the two ends of which are respectively connected to the second cooling chamber and the third cooling chamber and for the second coolant to flow. A driving structure is arranged between the second heat dissipation block and the first heat dissipation block to drive the second coolant to flow back and forth between the second cooling chamber, the condenser and the third cooling chamber. The driving structure is controlled by the evaporation or condensation of the first coolant. A second cooling structure is arranged below the second heat dissipation block to cool the second coolant when the second coolant is heated to a second preset temperature.

[0008] By adopting the above scheme, the heat on the diverter body is transferred to the first heat sink that is attached to the copper bar through the copper bars connected at both ends. While the heat on the first heat sink is naturally dissipated to the surroundings, it can also be quickly absorbed by the first coolant in the first cooling chamber, thereby ensuring that the heat on the diverter body can be continuously transferred to the first heat sink. When the temperature of the diverter body continues to rise, the first coolant absorbs heat and reaches the boiling point and then begins to evaporate to form the first vapor. The first vapor drives the rotating shaft and the fan blades to rotate through the rotating structure, that is, blows toward the diverter body, speeds up the flow rate of the gas outside the diverter body, thereby speeding up the heat dissipation of the diverter body. At the same time, the first vapor can also drive the second coolant to flow rapidly between the second cooling chamber, the condenser and the third cooling chamber through the driving structure, exchange heat with the first vapor in the first cooling chamber to condense it back to a liquid state, and exchange heat with the first coolant in the first cooling chamber to cool it down, so that the first coolant can continue to absorb the heat transferred to the first heat sink, ensuring that the heat on the diverter body can be continuously transferred to the first heat sink. When the second coolant is heated to the second preset temperature after heat exchange, the second cooling structure can also cool the second coolant, further ensuring the cooling effect of the second coolant on the first coolant. This solution can quickly reduce the temperature of the diverter body by absorbing heat from the first coolant, rotating the shaft and the fan blades to accelerate the flow rate and dissipate heat, the second coolant flows and exchanges heat with the first coolant, and cooling the second coolant.

[0009] Preferably, the rotating structure includes a rotating shaft extending downward from one end of the rotating shaft close to the first cooling chamber, a rotating groove provided in the first heat dissipation block for sealing and rotating the rotating shaft and connected to the first cooling chamber, and a driving blade provided vertically outward on the outer ring wall of the rotating shaft, a rotating space for rotating the driving blade is provided in the first heat dissipation block, a jet port is provided on the side wall of the driving blade, and an air passage connecting the rotating groove and the jet port is provided in the rotating shaft.

[0010] With the above solution, the first steam is ejected from the first cooling cavity through the rotating groove and the air passage through the jet port to drive the rotating shaft to rotate, and drive the rotating shaft and the fan blades to rotate simultaneously. At the same time, the first steam can also be cooled during the rapid ejection of the first steam through the jet port.

[0011] Preferably, the driving structure includes a connecting pipe whose two ends are respectively sealed and connected to a side of the second cooling chamber away from the third cooling chamber and the rotating space. A first seal is sealed and moved in the second cooling chamber. When the first vapor enters the second cooling chamber, the first seal moves close to the third cooling chamber, and squeezes the second coolant in the second cooling chamber into the third cooling chamber through the condenser. A tension spring is arranged between the second cooling chamber and the first seal. When the first vapor condenses, the tension spring drives the first seal to move away from the third cooling chamber, and draws the second coolant in the third cooling chamber into the second cooling chamber through the condenser.

[0012] With the above scheme, the first steam ejected from the jet port continuously flows into the rotating space and is transmitted to the second cooling chamber through the connecting pipe. The first steam increases, and the air pressure between the side of the second cooling chamber away from the third cooling chamber and the first seal increases, driving the first seal to move closer to the third cooling chamber, and the second coolant clamped between the side of the second cooling chamber close to the third cooling chamber and the first seal is squeezed into the third cooling chamber through the condenser tube. The second coolant flowing rapidly in the condenser tube has a lower temperature than the first coolant, and can exchange heat with the first coolant and the first steam in the first cooling chamber. After the first steam condenses and the first coolant cools down, the positive pressure of the first seal away from the third cooling chamber is reduced. Under the action of the tension spring, the first seal moves away from the third cooling chamber to extract the second coolant in the third cooling chamber through the condenser tube into the second cooling chamber. The flow of the second coolant in the condenser tube once again exchanges heat with the first coolant and the first steam, achieving further condensation and cooling. When the temperature of the first coolant continues to rise, the above process can be repeated.

[0013] Preferably, a second seal is provided in the third cooling chamber for sealing movement, and the second seal moves synchronously with the first seal, and a closed space for accommodating the second coolant is formed between the first seal, the second cooling chamber, the condenser, the third cooling chamber and the second seal, and a balancing air duct connected to the outside is provided on the side of the third cooling chamber away from the second cooling chamber.

[0014] By adopting the above scheme, when the second coolant is squeezed into the third cooling chamber, the pressure in the third cooling chamber increases, which will produce a large resistance to the movement of the first seal. Therefore, a second seal is provided in the third cooling chamber for sealing movement, which moves synchronously with the first seal. When the first seal moves close to the third cooling chamber, so that the pressure between the side of the second cooling chamber close to the third cooling chamber and the first seal increases, thereby squeezing the second coolant into the condenser tube, the second seal moves away from the second cooling chamber synchronously, so that the pressure between the side of the third cooling chamber close to the second cooling chamber and the second seal decreases, thereby extracting the second coolant in the condenser tube into the third cooling chamber, and due to the existence of the balance airway, the space formed between the second seal and the side of the third cooling chamber away from the second cooling chamber always maintains a normal pressure, which does not affect the movement of the second seal and the first seal. While the above arrangement reduces the resistance to the movement of the first seal, the negative pressure generated can also assist in extracting the second coolant, further ensuring the smooth flow of the second coolant in the condenser tube.

[0015] Preferably, the second cooling structure includes a third heat dissipation block arranged below the second heat dissipation block and a fourth cooling chamber for storing a third coolant arranged inside the third heat dissipation block. A first connecting tube connected to the fourth cooling chamber is arranged below one end of the condenser tube in the second cooling chamber, and a second connecting tube connected to the fourth cooling chamber is arranged below the other end of the condenser tube in the third cooling chamber. The second heat dissipation block is provided with a switching structure for switching to a liquid replacement state in which both ends of the condenser tube are sealed and blocked and the first connecting tube and the second connecting tube are exposed when the temperature of the second coolant is equal to or greater than the second preset temperature. When the temperature of the second coolant is lower than the second preset temperature, the switching structure switches to a condensation state in which the first connecting tube and the second connecting tube are sealed and blocked and both ends of the condenser tube are exposed.

[0016] By adopting the above scheme, when the temperature of the second coolant is lower than the second preset temperature, the switching structure switches to a condensation state in which both ends of the condensation tube are exposed and the first connecting tube and the second connecting tube are sealed and blocked, and the movement of the first seal and the second seal drives the second coolant to flow in the condensation tube; when the temperature of the second coolant rises to equal to or greater than the second preset temperature, the switching structure switches to a liquid replacement state in which both ends of the condensation tube are sealed and blocked and the first connecting tube and the second connecting tube are exposed, and the first seal moves close to the third cooling chamber to squeeze the second coolant into the fourth cooling chamber through the first connecting tube, and the second seal moves away from the second cooling chamber synchronously, so that the third coolant in the fourth cooling chamber, whose temperature is lower than the second coolant, is drawn into the third cooling chamber through the second connecting tube to mix with the second coolant to form a new second coolant, and the temperature of the second coolant is significantly reduced and lower than the second preset temperature, and the switching structure switches to the condensation state.

[0017] Preferably, the switching structure includes a first baffle which is lifted and lowered in the second cooling chamber and can seal and block one end of the condenser tube or the first connecting tube, and a second baffle which is lifted and lowered in the third cooling chamber and can seal and block the other end of the condenser tube or the second connecting tube. A magnet which controls the synchronous lifting and lowering of the first baffle and the second baffle, and a lifting slot which is connected to the third cooling chamber and is provided in the second heat dissipation block for lifting and lowering the magnet, and a second memory spring which extends to drive the magnet to rise when the temperature of the second coolant in the third cooling chamber is equal to or greater than the second preset temperature, or contracts to drive the magnet to fall when the temperature of the second coolant in the third cooling chamber is lower than the second preset temperature.

[0018] By adopting the above scheme, the second preset temperature is the transformation temperature of the second memory metal. When the temperature of the second coolant rises to be equal to or greater than the second preset temperature, the second memory spring expands to drive the magnet to rise, driving the first baffle and the second baffle that are magnetically attracted to the magnet to rise to seal and block the two ends of the condenser and expose the first connecting tube and the second connecting tube; when the temperature of the second coolant is lower than the second preset temperature, the second memory spring contracts to drive the magnet to descend, driving the first baffle and the second baffle that are magnetically attracted to the magnet to descend to expose the two ends of the condenser and seal and block the first connecting tube and the second connecting tube.

[0019] Preferably, a liquid storage cavity is provided in the third heat dissipation block, and a liquid passage pipe sealedly connected to the liquid storage cavity is provided at the bottom of the second cooling cavity between the connecting pipe and the first sealing member.

[0020] By adopting the above scheme, after the first vapor in the second cooling chamber condenses and recovers into the first coolant, it falls back into the liquid storage chamber through the liquid pipe. Subsequently, it is only necessary to clean the first coolant in the liquid storage chamber regularly to avoid the accumulation of the first coolant in the second cooling chamber and affecting its use.

[0021] Preferably, at least one group of rotating shafts, fan blades and rotating structures are arranged at intervals on the first heat dissipation block. When two or more groups are provided, the connecting pipe is connected to the rotating space closest to it, and an air passage is provided between the two adjacent groups of rotating structures, the two ends of which are respectively sealed and connected to the rotating space far away from the connecting pipe and the rotating groove close to the connecting pipe. A through groove connected to the first cooling chamber is provided at the bottom of each rotating space and the rotating groove. Except for the through groove farthest from the connecting pipe, the other through grooves are provided with an opening and closing structure for controlling the opening and closing of the through grooves, and the opening and closing structure is controlled by the rise and fall of temperature in the first heat dissipation block.

[0022] With the above scheme, when the temperature in the first heat sink rises to the first preset temperature, the opening and closing structure closes all the through slots except the through slot farthest from the connecting pipe, and the first steam enters the rotating slot farthest from the connecting pipe from the through slot farthest from the connecting pipe, and drives the rotating shaft farthest from the connecting pipe to rotate first, and the first steam enters the next rotating slot through the gas passage, and repeats the above steps, driving the rotating shaft to rotate in sequence from farthest from the connecting pipe to close to the connecting pipe, and the first steam finally enters the connecting pipe from the rotating space connected to the connecting pipe. When the temperature in the first heat sink is lower than the first preset temperature, the opening and closing structure opens the through slot, and the first coolant condensed in the rotating space and the rotating slot falls back into the first cooling chamber through the through slot.

[0023] Preferably, the opening and closing structure includes a stopper arranged for horizontal movement in the first heat dissipation block and a first memory spring which extends to drive the stopper to move to seal and block the through groove when the temperature in the first cooling chamber is equal to or greater than the first preset temperature, or contracts to drive the stopper to move to expose the through groove when the temperature in the first cooling chamber is lower than the first preset temperature.

[0024] By adopting the above scheme, the first preset temperature is the transformation temperature of the first memory metal. When the temperature inside the first heat dissipation block rises to be equal to or greater than the first preset temperature, the first memory spring expands to drive the block to move and block the through slot; when the temperature inside the first heat dissipation block is lower than the first preset temperature, the first memory spring contracts to drive the block to move and expose the through slot.

[0025] The present invention has significant technical effects due to the adoption of the above technical solution:

[0026] The heat on the diverter body is transferred to the first heat sink attached to the copper bar through the copper bars connected at both ends. The heat on the first heat sink is naturally dissipated to the surroundings and can also be quickly absorbed by the first coolant in the first cooling chamber.

[0027] When the temperature of the diverter body continues to rise, the first coolant evaporates, and the first vapor is ejected through the jet port to drive the rotating shaft and the fan blades to rotate, thereby accelerating the flow rate of the gas outside the diverter body, thereby accelerating the heat dissipation;

[0028] The increase or decrease of the first vapor cooperates with the tension spring to drive the first seal and the second seal to move, driving the second coolant to flow rapidly in the condenser tube to exchange heat with the first vapor and the first coolant, condensing the first vapor and cooling the first coolant;

[0029] When the second coolant is heated to the second preset temperature after heat exchange, it automatically switches to the fourth cooling chamber to communicate with the second cooling chamber and the third cooling chamber, and the first seal and the second seal move to drive the second coolant and the third coolant to exchange liquids. After the second coolant is cooled to below the second preset temperature, it automatically switches to the condenser to communicate with the second cooling chamber and the third cooling chamber, and the first seal and the second seal move to drive the second coolant to continue to flow in the condenser to condense the first vapor and cool down the first coolant. Without the need for additional power drive, only the heat generated by the diverter body can be used to achieve the above-mentioned first coolant absorbing heat, the rotation of the shaft and the fan blades to accelerate the flow rate and dissipate heat, the second coolant flowing in the condenser to exchange heat with the first coolant and the first vapor, and the second coolant is exchanged and cooled, so as to quickly reduce the temperature of the diverter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an axonometric diagram of a shunt with heat dissipation function in an embodiment;

[0031] Figure 2 is a front view of a shunt with heat dissipation function in an embodiment;

[0032] Figure 3 yes Figure 2 Sectional view at AA in the figure;

[0033] Figure 4 yes Figure 3 The enlarged view of point D in the figure;

[0034] Figure 5 yes Figure 4 The enlarged view of F in the figure;

[0035] Figure 6 It is a partial enlarged view of a block in a diverter with a heat dissipation function in an embodiment when it is switched to expose a through groove;

[0036] Figure 7 yes Figure 3 The enlarged view of point E in the figure;

[0037] Figure 8 It is a partial enlarged view of a switching structure in a diverter with a heat dissipation function in an embodiment when it is switched to a liquid replacement state;

[0038] Fig. 9 yes Figure 2 The cross-sectional view at BB in FIG.

[0039] Fig.10 yes Fig. 9 The enlarged view of G in the figure;

[0040] Fig.11 yes Figure 2 Sectional view at CC in FIG.

[0041] Fig.12 yes Fig.11 The enlarged view of H in the figure;

[0042] Fig.13 is a disassembled diagram of a shunt with heat dissipation function in an embodiment;

[0043] Fig.14 yes Fig.13 The enlarged view at position I in FIG.

[0044] Fig.15 yes Fig.14 The enlarged view of K in the figure;

[0045] Fig.16 yes Fig.13 The enlarged view of point J in the figure;

[0046] Fig.17 yes Fig.16 Enlarged view of point L in .

[0047] The parts indicated by the numbers in the above figures are as follows: 1. Shell; 2. Diverter body; 3. Copper bar; 4. First heat sink; 5. First cooling chamber; 6. Rotating shaft; 7. Fan blade; 8. Rotating shaft; 9. Rotating groove; 10. Driving blade; 11. Rotating space; 12. Jet port; 13. Air passage; 14. Through groove; 15. Stopper; 16. Sliding groove; 17. First memory spring; 18. Air passage; 19. Condenser; 20. Second heat sink; 21. The second cooling chamber; 22, the third cooling chamber; 23, the first sealing member; 24, the second sealing member; 25, the connecting rod; 26, the avoidance groove; 27, the connecting pipe; 28, the tension spring; 29, the balance airway; 30, the third heat sink; 31, the fourth cooling chamber; 32, the first connecting pipe; 33, the second connecting pipe; 34, the first baffle; 35, the second baffle; 36, the magnet; 37, the lifting groove; 38, the second memory spring; 39, the liquid passing pipe; 40, the liquid storage chamber; 43, the heat sink. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Example

[0049] A shunt with heat dissipation function, referring to Figures 1 to 17, including a diverter body 2, copper bars 3 are fitted and fixed at both ends of the diverter body 2, and a first heat sink 4 is fitted and fixed on each copper bar 3. The fixed connection method between the diverter body 2, the copper bar 3 and the first heat sink 4 is the existing technology. In this embodiment, bolts are used for fixing, which is not marked in the figure and will not be described here. It also includes a shell 1, and the first heat sink 4 is fixed in the shell 1, so that the diverter body 2 is fixed on the shell 1. The fixing method of the first heat sink 4 and the shell 1 is also the existing technology. In this embodiment, a snap-on fixation is used, which is not marked in the figure and will not be described here.

[0050] A first cooling chamber 5 is provided inside the first heat sink 4 for storing the first coolant. Most of the first heat sink 4 is close to the side of the diverter body 2 and is fitted with the copper bar 3, and a small part is exposed outside the copper bar 3 and there is a gap between the first heat sink 4 and the diverter body 2. A rotating shaft 6 is provided at a position close to the side of the diverter body 2 and exposed outside the copper bar 3, and the outer ring wall of the rotating shaft 6 is vertically protruded with a fan blade 7. In this embodiment, three fan blades 7 are evenly spaced around the rotating shaft 6. A rotating structure is provided in the first heat sink 4 to drive the rotating shaft 6 to rotate when the first coolant evaporates by heat. The rotating structure includes a rotating shaft 8 extending downward from one end of the rotating shaft 6 close to the first cooling chamber 5. A rotating groove 9 for sealing and rotating the rotating shaft 8 is provided in the first heat sink 4. A driving blade 10 is vertically protruded outward from the outer ring wall of the rotating shaft 8. In this embodiment, three driving blades 10 are evenly spaced around the rotating shaft 8. A rotating space 11 for rotating the driving blade 10 is provided in the first heat sink 4. The side wall of the driving blade 10 is provided with an air jet 12, the diameter of which gradually decreases from the end connected to the driving blade 10 to the end away from the driving blade 10, and the rotating shaft 8 is provided with an air passage 13 connecting the rotating groove 9 and the air jet 12.

[0051] A second heat sink 20 is fixed below the first heat sink 4 in the housing 1, and a second cooling cavity 21 and a third cooling cavity 22 are arranged in the second heat sink 20. A condenser 19 is arranged in the first cooling cavity 5. After the two ends of the condenser 19 are sealed and pass through the first heat sink 4 and are sealed and inserted into the second heat sink 20, one end of the condenser 19 is communicated with a side of the second cooling cavity 21 close to the third cooling cavity 22, and the other end is communicated with a side of the third cooling cavity 22 close to the second cooling cavity 21, that is, the second cooling cavity 21 and the third cooling cavity 22 are communicated through the condenser 19. A connecting tube 27 is arranged outside the first heat sink 4, one end of the connecting tube 27 is communicated with a side of the second cooling cavity 21 away from the third cooling cavity 22, and the other end is communicated with the rotation space 11 closest to it. A first seal 23 is provided in the second cooling chamber 21 to be sealed and movable, and can be close to or away from the third cooling chamber 22. A second seal 24 is provided in the third cooling chamber 22 to be sealed and movable, and can be close to or away from the second cooling chamber 21. A connecting rod 25 is provided between the first seal 23 and the second seal 24, and the two ends are respectively fixedly connected to the two seals. A avoidance groove 26 is provided in the second heat sink 20 for the connecting rod 25 to pass through and seal and move. A closed space for storing the second coolant is formed between the first seal 23, the second cooling chamber 21, the condenser 19, the third cooling chamber 22, and the second seal 24. A balance airway 29 connected to the outside is provided on the side of the third cooling chamber 22 away from the second cooling chamber 21. A tension spring 28 is provided between the first seal 23 and the second cooling chamber 21 along the moving direction of the first seal 23. The two ends of the tension spring 28 are respectively fixedly connected to the side of the second cooling chamber 21 away from the third cooling chamber 22 and the side of the first seal 23 away from the third cooling chamber 22. When the tension spring 28 is in the initial state, the first seal 23 is stationary at the extreme position farthest from the third cooling chamber 22. In this embodiment, two tension springs 28 are provided at intervals.

[0052] A third heat sink 30 is fixed below the second heat sink 20 in the housing 1, and a fourth cooling chamber 31 is provided in the third heat sink 30, in which a third coolant is stored. A first connecting pipe 32 connected to the second cooling chamber 21 is provided on the side of the second cooling chamber 21 close to the third cooling chamber 22, just below the end of the condenser pipe 19 connected to the second cooling chamber 21, and the end of the first connecting pipe 32 away from the second heat sink 20 is inserted into the fourth cooling chamber 31. A second connecting pipe 33 connected to the third cooling chamber 22 is provided on the side of the third cooling chamber 22 close to the second cooling chamber 21, just below the end of the condenser pipe 19 connected to the third cooling chamber 22, and the end of the second connecting pipe 33 away from the second heat sink 20 is inserted into the fourth cooling chamber 31.

[0053] A first baffle 34 is provided in the second cooling chamber 21 for lifting and lowering. When the first baffle 34 is raised, it can block the end of the condenser tube 19 connected to the second cooling chamber 21, while exposing the end of the first connecting tube 32 connected to the second cooling chamber 21; when the first baffle 34 is lowered, it can block the end of the first connecting tube 32 connected to the second cooling chamber 21, while exposing the end of the condenser tube 19 connected to the second cooling chamber 21. A second baffle 35 is provided in the third cooling chamber 22 for lifting and lowering. When the second baffle 35 is raised, it can block the end of the condenser tube 19 connected to the third cooling chamber 22, while exposing the end of the second connecting tube 33 connected to the third cooling chamber 22; when the second baffle 35 is lowered, it can block the end of the second connecting tube 33 connected to the third cooling chamber 22, while exposing the end of the condenser tube 19 connected to the third cooling chamber 22. The second heat sink 20 is provided with a lifting slot 37 connected to the third cooling chamber 22. A magnet 36 is provided in the lifting slot 37. The magnet 36 can be magnetically attracted to the first baffle 34 and the second baffle 35, and the magnet 36 can simultaneously drive the first baffle 34 and the second baffle 35 to rise and fall when it is lifted and lowered. A second memory spring 38 is provided between the lifting slot 37 and the magnet 36 along the lifting direction of the magnet 36 to drive the magnet 36 to rise and fall. The extension and contraction of the second memory spring 38 is controlled by the temperature change of the second coolant in the third cooling chamber 22.

[0054] A liquid storage cavity 40 is disposed inside the third heat dissipation block 30 , and a liquid passage 39 sealedly connected to the liquid storage cavity 40 is disposed at the bottom of the second cooling cavity 21 between the side of the second cooling cavity 21 away from the third cooling cavity 22 and the first sealing member 23 .

[0055] In this embodiment, the rotating shaft 6, the fan blades 7 and the rotating structure are evenly spaced in three groups from close to far away from the connecting pipe 27. The bottom of the rotating groove 9 and the rotating space 11 are both provided with a through groove 14 connected to the first cooling chamber 5. Except for the through groove 14 provided at the bottom of the rotating groove 9 farthest from the connecting pipe 27, the remaining through grooves 14 are all provided with an opening and closing structure for controlling the opening and closing of the through groove 14. An air passage 18 is provided between two adjacent groups of rotating structures, and the two ends of the air passage 18 are respectively sealed and connected to the rotating space 11 far away from the connecting pipe 27 and the rotating groove 9 close to the connecting pipe 27. The connecting pipe 27 is connected to the rotating space 11 closest to it.

[0056] The opening and closing structure includes a block 15 which is horizontally movably arranged in the first heat dissipation block 4 and can seal and block the through groove 14 or expose the through groove 14, and a first memory spring 17 which controls the movement of the block 15. A sliding groove 16 for the block 15 to move is arranged in the first heat dissipation block 4. A first memory spring 17 for driving the block 15 to move is arranged between the sliding groove 16 and the block 15 along the moving direction of the block 15. The extension and contraction of the first memory spring 17 is controlled by the temperature change in the first heat dissipation block 4.

[0057] In this embodiment, the first memory spring 17 and the second memory spring 38 are made of the same two-way memory alloy material, the second coolant and the third coolant are the same, the transformation temperature of the first memory spring 17 is lower than the boiling point of the first coolant, and the boiling point of the first coolant is lower than the boiling point of the second coolant. In this embodiment, a coolant with a boiling point in the range of 60°C to 90°C is selected as the first coolant, which can be 3M's 7100 electronic fluoride liquid with a boiling point of 61°C; the second coolant and the third coolant are specifically pure water with a boiling point of 100°C; a two-way memory alloy with a transformation temperature in the range of 40°C to 50°C is selected as the manufacturing material of the first memory spring 17 and the second memory spring 38, which can be specifically nickel-titanium alloy.

[0058] The first heat sink 4 and / or the second heat sink 20 and / or the third heat sink 30 are provided with heat sink fins 43. In this embodiment, the first heat sink 4 and the third heat sink 30 are provided with heat sink fins 43 on the side away from the diverter body 2. The first cooling chamber 5, the second cooling chamber 21, the fourth cooling chamber 31 and the liquid storage chamber 40 are all provided with liquid ports connected to the outside for liquid replenishment or liquid discharge. The liquid ports are provided with plugs that can be opened or closed. The liquid ports and the plugs are both existing technologies, not shown in the figure, and will not be described here.

[0059] After the diverter body 2 generates heat, part of the heat is directly dissipated into the air, and most of the heat is transferred to the first heat sink 4 that is in contact with the copper busbar 3 through the copper busbars 3 connected at both ends. While the heat on the first heat sink 4 is naturally dissipated to the surroundings, it can also be quickly absorbed by the first coolant in the first cooling chamber 5, thereby ensuring that the heat on the diverter body 2 can be continuously transferred to the first heat sink 4.

[0060] When the temperature of the diverter body 2 continues to rise, the temperature in the first heat sink 4 gradually rises, and all the first memory springs 17 are heated and stretched first, driving the block 15 to move to block the through slot 14. At this time, only the through slot 14 farthest from the connecting pipe 27 is connected to the first cooling chamber 5. Then, the first coolant absorbs heat and reaches the boiling point and begins to evaporate to form the first steam. The first steam enters the rotating slot 9 farthest from the connecting pipe 27 from the through slot 14 farthest from the connecting pipe 27, and drives the rotating shaft 6 farthest from the connecting pipe 27 to rotate first. The first steam enters the next rotating slot 9 through the air passage 18, and repeats the above steps, driving the rotating shaft 6 to rotate in sequence from farthest from the connecting pipe 27 to close to the connecting pipe 27. The first steam finally enters the connecting pipe 27 from the rotating space 11 connected to the connecting pipe 27. The rotating shaft 6 and the fan blades 7 rotate to blow air toward the diverter body 2, speeding up the flow rate of the gas outside the diverter body 2, thereby speeding up the heat dissipation of the diverter body 2.

[0061] The first steam enters the second cooling chamber 21 through the connecting pipe 27, and the pressure on the side of the first seal 23 away from the third cooling chamber 22 increases, driving the first seal 23 to move close to the third cooling chamber 22, so that the pressure between the side of the second cooling chamber 21 close to the third cooling chamber 22 and the first seal 23 increases, thereby squeezing the second coolant into the condenser 19. At the same time, the second seal 24 synchronously moves away from the second cooling chamber 21, so that the pressure between the side of the third cooling chamber 22 close to the second cooling chamber 21 and the second seal 24 decreases, thereby extracting the second coolant in the condenser 19 into the third cooling chamber 22.

[0062] The second coolant flowing rapidly in the condenser 19, which has a lower temperature than the first coolant, can exchange heat with the first coolant and the first vapor in the first cooling chamber 5. After the first vapor condenses and the first coolant cools down, the positive pressure on the side of the first seal 23 away from the third cooling chamber 22 decreases. Under the action of the tension spring 28, the first seal 23 is driven to move away from the third cooling chamber 22, so that the pressure between the side of the second cooling chamber 21 close to the third cooling chamber 22 and the first seal 23 is reduced, thereby extracting the second coolant in the condenser 19 into the second cooling chamber 21. At the same time, the second seal 24 synchronously moves close to the second cooling chamber 21, so that the pressure between the side of the third cooling chamber 22 close to the second cooling chamber 21 and the second seal 24 is increased, thereby squeezing the second coolant into the condenser 19.

[0063] When the temperature of the second coolant rises to be equal to or greater than the second preset temperature, the second memory spring 38 expands to drive the magnet 36 to rise, driving the first baffle 34 and the second baffle 35 magnetically attracted by the magnet 36 to rise to seal and block both ends of the condenser tube 19 and expose the first connecting tube 32 and the second connecting tube 33. At this time, the first sealing member 23 moves closer to the third cooling chamber 22, and the second sealing member 24 moves away from the second cooling chamber 21, so that the second coolant in the second cooling chamber 21 is squeezed into the fourth cooling chamber 31 through the first connecting tube 32, and at the same time, the third coolant in the fourth cooling chamber 31, which has a lower temperature than the second coolant, is drawn into the The second coolant flows into the third cooling chamber 22 to form a new second coolant; when the temperature of the second coolant drops below the second preset temperature, the second memory spring 38 contracts to drive the magnet 36 to drop, driving the first baffle 34 and the second baffle 35 that are magnetically attracted by the magnet 36 to drop to expose both ends of the condenser tube 19 and seal the first connecting tube 32 and the second connecting tube 33. At this time, the condensation state is restored, the first sealing member 23 continues to move closer to the third cooling chamber 22, and the second sealing member 24 continues to move away from the second cooling chamber 21, driving the second coolant to flow in the condenser tube 19 to cool the first coolant and condense the first vapor.

[0064] When the diverter body 2 stops dissipating heat, the temperature in the first heat dissipation block 4 decreases, the first memory spring 17 contracts to drive the block 15 to move to expose the through groove 14, and the first coolant condensed in the rotating space 11 and the rotating groove 9 falls back into the first cooling chamber 5. The temperature in the second heat dissipation block 20 decreases, and the first coolant condensed in the second cooling chamber 21 falls back into the liquid storage chamber 40. The liquid storage chamber 40 is drained regularly, and the first cooling chamber 5 is replenished. At the same time, the second coolant and the third coolant in the second cooling chamber 21 and the fourth cooling chamber 31 are checked, and more coolant is drained and less coolant is replenished.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A shunt with a heat dissipation function, comprising a shunt body (2), with copper bars (3) connected to both ends of the shunt body (2), and a heat dissipation structure arranged on the copper bar (3), characterized in that: The heat dissipation structure comprises a first heat dissipation block (4) which is in thermal contact with the copper bar (3) and a first cooling chamber (5) which is arranged inside the first heat dissipation block (4) and is used to store a first cooling liquid. A rotating shaft (6) is provided on a side of the first heat dissipation block (4) close to the diverter body (2) in a sealed manner. A fan blade (7) is provided on the outer ring wall of the rotating shaft (6) and vertically protrudes outward. A rotating structure for driving the rotating shaft (6) to rotate is provided inside the first heat dissipation block (4). The rotating structure is controlled by a first vapor formed by evaporation of the first cooling liquid by heat. A first cooling structure for reducing the temperature of the first cooling liquid is provided below the first heat dissipation block (4). The first cooling structure comprises a second heat dissipation block (20) which is provided below the first heat dissipation block (4), a cooling chamber (5) which is used to store a first cooling liquid, and a cooling chamber (6) which is used to store a first cooling liquid. A second cooling chamber (21) and a third cooling chamber (22) storing a second cooling liquid are arranged in the second heat dissipation block (20), and a condenser tube (19) is arranged in the first cooling chamber (5) and is connected to the second cooling chamber (21) and the third cooling chamber (22) at both ends thereof and is used for the flow of the second cooling liquid. A driving structure is arranged between the second heat dissipation block (20) and the first heat dissipation block (4) to drive the second cooling liquid to flow back and forth between the second cooling chamber (21), the condenser tube (19) and the third cooling chamber (22). The driving structure is controlled by the evaporation or condensation of the first cooling liquid. A second cooling structure is arranged below the second heat dissipation block (20) to cool the second cooling liquid when the second cooling liquid is heated to a second preset temperature.

2. The shunt with heat dissipation function according to claim 1, characterized in that: The rotating structure comprises a rotating shaft (8) extending downwardly from one end of the rotating shaft (6) close to the first cooling chamber (5), a rotating groove (9) provided in the first heat dissipation block (4) for sealing and rotating the rotating shaft (8) and communicating with the first cooling chamber (5), and a driving blade (10) vertically and outwardly provided on the outer ring wall of the rotating shaft (8), a rotating space (11) for rotating the driving blade (10) is provided in the first heat dissipation block (4), a jet port (12) is provided on the side wall of the driving blade (10), and an air passage (13) for communicating the rotating groove (9) and the jet port (12) is provided in the rotating shaft (8).

3. The shunt with heat dissipation function according to claim 2, characterized in that: The driving structure comprises a connecting pipe (27) whose two ends are respectively sealed and connected to a side of the second cooling chamber (21) away from the third cooling chamber (22) and the rotating space (11); a first sealing member (23) is sealed and moved in the second cooling chamber (21); when the first vapor enters the second cooling chamber (21), the first sealing member (23) moves close to the third cooling chamber (22), and squeezes the second cooling liquid in the second cooling chamber (21) into the third cooling chamber (22) through the condenser (19); a tension spring (28) is arranged between the second cooling chamber (21) and the first sealing member (23); when the first vapor condenses, the tension spring (28) drives the first sealing member (23) to move away from the third cooling chamber (22), and draws the second cooling liquid in the third cooling chamber (22) into the second cooling chamber (21) through the condenser (19).

4. The shunt with heat dissipation function according to claim 3, characterized in that: A second sealing member (24) is provided in a sealed and movable manner in the third cooling chamber (22), and the second sealing member (24) moves synchronously with the first sealing member (23), and a closed space for accommodating a second cooling liquid is formed between the first sealing member (23), the second cooling chamber (21), the condenser tube (19), the third cooling chamber (22) and the second sealing member (24), and a balancing airway (29) communicating with the outside is provided on a side of the third cooling chamber (22) away from the second cooling chamber (21).

5. The shunt with heat dissipation function according to claim 1, characterized in that: The second cooling structure comprises a third heat dissipation block (30) arranged below the second heat dissipation block (20) and a fourth cooling chamber (31) for storing a third cooling liquid arranged inside the third heat dissipation block (30); a first connecting tube (32) communicating with the fourth cooling chamber (31) is arranged below one end of the condenser tube (19) in the second cooling chamber (21); a second connecting tube (33) communicating with the fourth cooling chamber (31) is arranged below the other end of the condenser tube (19) in the third cooling chamber (22); a switching structure is arranged in the second heat dissipation block (20) for switching to a liquid replacement state in which both ends of the condenser tube (19) are sealed and blocked and the first connecting tube (32) and the second connecting tube (33) are exposed when the temperature of the second cooling liquid is equal to or greater than a second preset temperature; and when the temperature of the second cooling liquid is lower than the second preset temperature, the switching structure switches to a condensation state in which the first connecting tube (32) and the second connecting tube (33) are sealed and blocked and the two ends of the condenser tube (19) are exposed.

6. The shunt with heat dissipation function according to claim 5, characterized in that: The switching structure comprises a first baffle (34) which is lifted and arranged in the second cooling chamber (21) and can seal and block one end of the condenser tube (19) or the first connecting tube (32), and a second baffle (35) which is lifted and arranged in the third cooling chamber (22) and can seal and block the other end of the condenser tube (19) or the second connecting tube (33). A magnet (36) which controls the synchronous lifting and lowering of the first baffle (34) and the second baffle (35) and a lifting groove (37) which is connected to the third cooling chamber (22) and is provided in the second heat dissipation block (20). A second memory spring (38) is provided between the lifting groove (37) and the magnet (36) and is extended to drive the magnet (36) to rise when the temperature of the second coolant in the third cooling chamber (22) is equal to or greater than the second preset temperature, or is contracted to drive the magnet (36) to fall when the temperature of the second coolant in the third cooling chamber (22) is less than the second preset temperature.

7. The shunt with heat dissipation function according to claim 6, characterized in that: A liquid storage chamber (40) is provided in the third heat dissipation block (30), and a liquid passage pipe (39) sealedly connected to the liquid storage chamber (40) is provided at the bottom of the second cooling chamber (21) between the connecting pipe (27) and the first sealing member (23).

8. The shunt with heat dissipation function according to claim 4, characterized in that: At least one group of rotating shafts (6), fan blades (7) and rotating structures are arranged at intervals on the first heat dissipation block (4). When two or more groups are arranged, the connecting pipe (27) is connected to the rotating space (11) closest to it. An air passage (18) is arranged between two adjacent groups of rotating structures, and its two ends are respectively sealed and connected to the rotating space (11) far away from the connecting pipe (27) and the rotating groove (9) close to the connecting pipe (27). A through groove (14) connected to the first cooling chamber (5) is arranged at the bottom of each rotating space (11) and the rotating groove (9). Except for the through groove (14) farthest from the connecting pipe (27), the remaining through grooves (14) are all provided with an opening and closing structure for controlling the opening and closing of the through grooves (14), and the opening and closing structure is controlled by the rise and fall of the temperature in the first heat dissipation block (4).

9. The shunt with heat dissipation function according to claim 8, characterized in that: The opening and closing structure comprises a stopper (15) arranged to move horizontally in the first heat dissipation block (4) and a first memory spring (17) which extends to drive the stopper (15) to move to seal and block the through groove (14) when the temperature in the first cooling chamber (5) is equal to or greater than a first preset temperature, or contracts to drive the stopper (15) to move to expose the through groove (14) when the temperature in the first cooling chamber (5) is less than the first preset temperature.

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