An intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation

Abstract

The present invention discloses an intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation, belonging to the technical field of ultra-fast charging piles, which includes: an ultra-fast charging pile main body, inside which there is a main board module cavity, and a liquid-cooling mechanism is integrally installed in the main board module cavity. On one side end face of the outside of the ultra-fast charging pile main body, a coolant storage tank is installed, and a phase-change cooling medium is stored in the coolant storage tank. A flow divider controller is installed in the ultra-fast charging pile main body, and the liquid outlet of the coolant storage tank is communicated with the input end of the flow divider controller through a liquid delivery pump; wherein, the liquid-cooling mechanism is respectively communicated with each discharge port of the flow divider controller through a plurality of pipeline systems; the liquid-cooling mechanism can be individually controlled and adjusted by a plurality of liquid-cooling tubes, so that the cooling medium is circulated and conveyed through the corresponding number of liquid-cooling tubes, thereby achieving multi-stage liquid-cooling temperature reduction regulation, and the cooling medium can be circulated and conveyed leftward or rightward in the liquid-cooling tube to prevent the occurrence of hot-end accumulation phenomenon.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultra-fast charging piles, and specifically relates to an intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation. Background Art

[0002] In order to improve the charging speed, enhance the user experience, and reduce range anxiety, liquid-cooled ultra-fast charging piles have emerged. The power module of a liquid-cooled ultra-fast charging pile needs to operate at a high power during work, which easily generates a large amount of heat. Especially during the fast charging process, the heat generated in a short time directly exceeds its heat dissipation capacity, forming a local high temperature. In traditional technologies, air-cooled heat dissipation methods are mostly used, but the air-cooled heat dissipation efficiency is not high, making it difficult to handle the large heat generation of fast charging, and its working noise is relatively large, unable to meet the heat dissipation requirements of ultra-fast charging. While liquid-cooled ultra-fast charging uses a liquid circulation system for efficient heat dissipation during charging, and its cooling effect is remarkable, which can ensure the fast and stable charging process.

[0003] However, the liquid-cooling systems in the existing technologies usually adopt a single circulation path or a fixed cooling method, and cannot perform flexible multi-stage regulation according to the changes in the actual working heat, resulting in uneven cooling efficiency and prone to the phenomenon of heat end accumulation. At the same time, the circulation path of the cooling medium in the existing liquid-cooling systems is usually fixed, lacking the ability of dynamic adjustment, and unable to effectively cope with the sharp rise in heat under high-temperature or high-load working conditions, which may lead to excessive local temperature and decreasing cooling efficiency, affecting the safety and stability of the charging process.

[0004] Therefore, it is necessary to provide an intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation to solve the problems raised in the above background art. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: An intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation, which includes: a main body of the ultra-fast charging pile, inside which there is a main board module cavity, and a liquid-cooling mechanism is integrally installed in the main board module cavity. One side end face of the outside of the main body of the ultra-fast charging pile is provided with a coolant storage tank, and a phase-change cooling medium is stored in the coolant storage tank. A flow divider controller is installed inside the main body of the ultra-fast charging pile, and the liquid outlet of the coolant storage tank is connected to the input end of the flow divider controller through a liquid delivery pump; wherein, the liquid-cooling mechanism is respectively connected and communicated with each discharge port of the flow divider controller through a plurality of pipeline systems.

[0006] Preferably, the outlet end of the flow splitter controller is connected to a heat exchange system through a main circulation pipeline, and the heat exchange system is arranged on the lateral end face of the ultra-fast charging pile main body opposite to the coolant storage bin; the heat exchange system includes a condensation unit and a circulating return pipeline, the end of the main circulation pipeline is connected to the inlet of the condensation unit, and both ends of the circulating return pipeline are respectively connected to the outlet of the condensation unit and the return interface of the coolant storage bin, forming a closed-loop cooling medium circulation channel.

[0007] Preferably, the liquid cooling mechanism includes fixing frames, which are multiple and distributed left and right, and each fixing frame is arranged at intervals along the vertical direction of the main board module cavity. Liquid cooling pipes are vertically inserted and fixed between the fixing frames on the same side, and the multiple liquid cooling pipes are arranged and distributed along the horizontal direction of the fixing frames; two liquid cooling pipes on the opposite sides are connected through a conduit sleeve, and the lower ends of the liquid cooling pipes are all connected to the liquid discharge port of the flow splitter controller; a fan blade is installed on each fixing frame, and ventilation openings are provided on the side wall of the ultra-fast charging pile main body at the position of the fan blade.

[0008] Preferably, a plurality of heat conducting fins are arranged and distributed on each fixing frame, and an intake fan blade is installed on the side of the fixing frame away from the fan blade.

[0009] Preferably, a booster pump is provided between the flow splitter controller and each liquid cooling pipe;

[0010] A branch pipe is also inclined and connected to the end of each liquid cooling pipe, the other end of the branch pipe is connected to the liquid inlet of the flow splitter controller, and a solenoid valve is connected in series on the branch pipe; the cooling medium enters each liquid cooling pipe through the booster pump and is discharged from the branch pipe of the liquid cooling pipe on the other side through the conduit sleeve, so as to form two different circulation modes from left to right or from right to left.

[0011] Preferably, an inner pipe is arranged in each liquid cooling pipe, and a flow control unit is connected in series on the inner pipe; the flow control unit includes a sealing sleeve fixed in the liquid cooling pipe, and a plurality of guide holes are circumferentially distributed inside it. A valve shaft that can be deflected relatively is arranged in the sealing sleeve, a connecting hole corresponding to the guide hole is opened in the valve shaft, and connecting pipes are hermetically rotatably sleeved at the upper and lower ends of the valve shaft, and the other end of the connecting pipe is connected to the inner pipe; and side through holes are symmetrically opened at the upper and lower ends of the valve shaft, the cross section of the side through hole is in an L-shaped structure, and side holes are opened on the side wall of the connecting pipe.

[0012] Preferably, a guide sleeve is slidably sleeved outside the connecting pipe below the valve shaft, and a valve plug is coaxially fixed to the end of the guide sleeve; a valve ring is fixed inside the liquid cooling pipe, and the valve ring is slidably engaged with the valve plug; an inclined groove is formed in the inner wall of the guide sleeve, and a shaft pin is fixed to the valve shaft, and the shaft pin is slidably connected with the inclined groove; a limiting spring is sleeved on the valve shaft, and the lower end of the limiting spring is connected to the guide sleeve.

[0013] Preferably, each of the inner pipes is communicated with the liquid inlet of the flow dividing controller; when the connecting hole is communicated with the guiding hole, each of the side through holes is offset from the side hole.

[0014] Preferably, a plurality of the flow control units are arranged and distributed, each of the flow control units is spaced from the fixing frame, and the elastic forces of the limiting springs in each of the flow control units are different, and the elastic force of the limiting spring in the flow control unit closer to the conduit sleeve side is smaller than that on the other side.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The liquid cooling mechanism adopted in the present invention can perform liquid cooling and temperature reduction according to the heat generated by the operation of the supercharger main body, so as to quickly take away the heat generated during charging and ensure the safety of the charging process; among them, a plurality of liquid cooling pipes mainly adopted can be independently controlled and adjusted, so that the cooling medium is circulated and transported from the corresponding number of liquid cooling pipes, so as to achieve multi-stage liquid cooling and temperature reduction adjustment, and the cooling medium can be circulated and transported to the left or right in the liquid cooling pipe, which can effectively avoid the limitation of the decreasing cooling efficiency of the downstream and prevent the generation of hot end accumulation phenomenon; among them, an inner pipe is arranged in the liquid cooling pipe, and a flow control unit is arranged in the length direction thereof. When the internal working heat of the supercharger main body rises sharply, the cooling medium in the liquid cooling pipe can be intercepted in the middle of the liquid cooling pipe under the high-pressure transportation of the booster pump. At this time, the inner pipe is communicated with the liquid cooling pipe, thereby forming a double-circuit circulation cooling branch, enhancing the flow and cooling rate of the cooling medium at the corresponding position, and significantly enhancing the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a three-dimensional structure diagram of the liquid cooling mechanism in the present invention;

[0019] Figure 3 is a sectional view of the liquid cooling mechanism in the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the flow control unit in the present invention;

[0021] Figure 5 is Figure 4 a schematic enlarged view of the structure at A in

[0022] Figure 6 Schematic diagram of single - path right - circulation cooling of the liquid - cooling mechanism in the present invention;

[0023] Figure 7 Schematic diagram of dual - path circulation cooling of the liquid - cooling mechanism in the present invention;

[0024] In the figure: 1. Ultra - fast charging pile main body; 11. Main board module cavity; 12. Coolant storage; 13. Flow - dividing controller; 14. Condensing unit; 15. Circulation return pipeline; 16. Main circulation pipeline; 2. Liquid - cooling mechanism; 21. Fixed frame; 22. Duct sleeve; 23. Delivery fan blade; 24. Heat - conducting fins; 25. Intake fan blade; 26. Boost pump; 3. Liquid - cooling pipe; 31. Branch pipe; 32. Inner pipe; 4. Flow - control unit; 41. Sealing sleeve; 42. Valve shaft; 43. Connecting hole; 44. Connecting pipe; 45. Side hole; 46. Side - through hole; 6. Guide sleeve; 61. Valve plug; 62. Valve ring; 63. Limit spring; 64. Axle pin. Detailed implementation manners

[0025] Please refer to Figures 1-7 , in an embodiment of the present invention, an intelligent temperature - controlled multi - stage liquid - cooled ultra - fast charging pile based on adaptive flow regulation includes: an ultra - fast charging pile main body 1, inside which there is a main board module cavity 11, and a liquid - cooling mechanism 2 is integrally installed in the main board module cavity 11. On one side end face of the outside of the ultra - fast charging pile main body 1, there is a coolant storage 12, and a phase - change cooling medium is stored in the coolant storage 12. A flow - dividing controller 13 is installed in the ultra - fast charging pile main body 1, and the liquid outlet of the coolant storage 12 is connected to the input end of the flow - dividing controller 13 through a liquid delivery pump; wherein, the liquid - cooling mechanism 2 can respectively cool and dissipate heat from the charging seat module, charging gun module, etc. in the main board module cavity 11 to ensure the temperature stability of the ultra - fast charging pile during operation and avoid excessive temperature during the charging process;

[0026] Wherein, the liquid - cooling mechanism 2 is respectively connected and communicated with each discharge port of the flow - dividing controller 13 through a plurality of pipeline systems.

[0027] In this embodiment, the outlet end of the flow - dividing controller 13 is connected to a heat - exchange system through a main circulation pipeline 16, and the heat - exchange system is arranged on the side end face of the ultra - fast charging pile main body 1 opposite to the coolant storage 12;

[0028] The heat exchange system includes a condensation unit 14 and a circulating return pipeline 15. The end of the main circulation pipeline 16 is connected to the inlet of the condensation unit 14. Both ends of the circulating return pipeline 15 are respectively connected to the outlet of the condensation unit 14 and the return interface of the coolant tank 12, forming a closed-loop cooling medium circulation channel. Among them, heat sinks, fans or other heat dissipation devices can be equipped inside the condensation unit 14. Through forced convection or natural heat dissipation, the heat in the cooling medium is quickly dissipated into the surrounding air. This process significantly reduces the temperature of the cooling medium and restores it to an appropriate working temperature. Then, the cooling medium can flow back into the coolant tank 12 through the circulating return pipeline 15 for storage.

[0029] As a preferred embodiment, the liquid cooling mechanism 2 includes fixing frames 21, which are multiple and distributed left and right. Each of the fixing frames 21 is arranged at intervals in the vertical direction of the main board module cavity 11. Liquid cooling pipes 3 are vertically inserted and fixed between the fixing frames 21 on the same side. The multiple liquid cooling pipes 3 are arranged and distributed in the horizontal direction of the fixing frames 21. The fixing frames 21 can be installed to cover the key heat-generating areas inside the ultra-fast charging pile main body 1, so that the cooling medium can quickly cool down this area.

[0030] Two of the liquid cooling pipes 3 on the opposite sides are connected through a conduit sleeve 22, and the lower ends of the liquid cooling pipes 3 are all connected to the liquid discharge port of the flow divider controller 13.

[0031] A supply fan blade 23 is installed on each of the fixing frames 21, and ventilation openings are provided on the side wall of the ultra-fast charging pile main body 1 at the position of the supply fan blade 23. Among them, on the one hand, the heat conduction between the liquid cooling pipe 3 and the heat-generating area inside the ultra-fast charging pile main body 1 can be used to quickly cool down the heat-generating position. On the other hand, the external air can be used to exchange heat with the cooling medium in the liquid cooling pipe 3 through the supply fan blade 23 to form low-temperature cold air, so as to perform air flow replacement heat dissipation inside the ultra-fast charging pile main body 1 and further reduce the overall temperature inside the ultra-fast charging pile main body 1.

[0032] In this embodiment, a plurality of heat conduction fins 24 are arranged and distributed on each of the fixing frames 21, and an intake fan blade 25 is installed on one side of the fixing frame 21 away from the supply fan blade 23.

[0033] In this embodiment, a booster pump 26 is provided between the flow divider controller 13 and each of the liquid cooling pipes 3. The booster pump 26 can effectively boost and regulate the pressure of the cooling medium conveyed in the liquid cooling pipe 3, so that the cooling medium in the liquid cooling pipe 3 is pumped at different pressures.

[0034] A branch pipe 31 is also inclined and connected to the end of each of the liquid cooling pipes 3. The other end of the branch pipe 31 is connected to the liquid inlet of the flow divider controller 13, and a solenoid valve is connected in series on the branch pipe 31.

[0035] The cooling medium enters each of the liquid cooling tubes 3 through the booster pump 26 and is discharged from the branch pipe 31 of the liquid cooling tube 3 on the other side through the conduit sleeve 22, so as to form two different circulation modes from left to right or from right to left. It should be noted that when the liquid cooling tube 3 on one side transports the cooling medium discharged from the discharge port of the shunt controller 13 to the liquid cooling tube 3 on the other side, the end of the liquid cooling tube 3 on the other side is not flowing, while the branch pipe 31 on its side wall is in a flowing state. Similarly, the arranged and distributed liquid cooling tubes 3 can respectively carry out left circulation or right circulation cooling medium transportation; and a controller can be set in the super charging pile body 1 (powered by DC24V and can be locally started through the input point). On the one hand, it can effectively control and adjust each discharge port of the shunt controller 13, so that the arranged and distributed liquid cooling tubes 3 can transport the cooling medium individually or in full to achieve hierarchical regulation. On the other hand, it controls each liquid cooling tube 3 to carry out left circulation or right circulation cooling medium transportation, avoiding the limitation of decreasing downstream cooling efficiency due to a single flow direction, resulting in accumulation at the hot end.

[0036] In this embodiment, an inner tube 32 is provided in each of the liquid cooling tubes 3, and a flow control unit 4 is serially connected to the inner tube 32;

[0037] The flow control unit 4 includes a sealing sleeve 41 fixed in the liquid cooling tube 3 and having a plurality of guide holes distributed around its inner circumference. A valve shaft 42 is relatively rotatably provided in the sealing sleeve 41. Connecting holes 43 corresponding to the guide holes are formed in the valve shaft 42. Connecting pipes 44 are sealed and rotatably sleeved on the upper and lower ends of the valve shaft 42. The other end of the connecting pipe 44 is connected to the inner tube 32.

[0038] The valve shaft 42 is symmetrically provided with bypass holes 46 at the upper and lower ends thereof. The cross section of the bypass hole 46 is L-shaped. A side hole 45 is provided on the side wall of the connecting pipe 44.

[0039] It should be noted that the inner tubes 32 of the two connected liquid cooling tubes 3 are sealed and connected to each other. Under normal operation, the medium in the liquid cooling tube 3 flows around the outer periphery of the inner tube 32. However, when the connecting hole 43 and the guide hole are staggered during the rotation adjustment of the valve shaft 42, the bypass hole 46 on the valve shaft 42 can be connected with the side hole 45 on the connecting tube 44. At this time, the liquid cooling tube 3 is cut off at the position of the flow control unit 4 and divided into two independent branches. The cooling medium in the liquid cooling tube 3 can flow into the inner tube 32 through the bypass hole 46, and then be discharged into the liquid inlet of the diversion controller 13 by the inner tube 32.

[0040] Further supplementary description is that cooling medium can be pre-retained in each inner tube 32 under normal operation. That is, when the bypass hole 46 is docked with the side hole 45, the cooling medium in the liquid cooling tube 3 can flow into the inner tube 32. Then, when the bypass hole 46 is staggered from the side hole 45, the cooling medium in the inner tube 32 remains stationary. Therefore, by intermittently changing the liquid in the inner tube 32, a relatively stable temperature reduction and heat dissipation effect can be maintained.

[0041] As a preferred embodiment, a guide sleeve 6 is slidably sleeved outside the connecting pipe 44 below the valve shaft 42, and a valve plug 61 is coaxially fixed at the end of the guide sleeve 6; a valve ring 62 is fixed inside the liquid cooling tube 3, and the valve ring 62 is slidably matched with the valve plug 61;

[0042] The inner wall of the guide sleeve 6 is provided with an inclined groove, and a shaft pin 64 is fixed on the valve shaft 42, and the shaft pin 64 is slidably connected with the inclined groove;

[0043] A limiting spring 63 is sleeved on the valve shaft 42, and the lower end of the limiting spring 63 is connected with the guide sleeve 6. Therefore, when the pressure of the cooling medium transportation in the liquid cooling tube 3 becomes larger, the greater the flow top pressure on the valve plug 61, the limiting spring 63 is gradually compressed, and the guide sleeve 6 drives the valve shaft 42 to deflect through the sliding action of the shaft pin 64 and the inclined groove during axial sliding, so that the connecting hole 43 on the valve shaft 42 is staggered from the guide hole, and the liquid cooling tube 3 is connected to the inner tube 32, so that the single-channel flow path of the liquid cooling tube 3 is switched to a double-channel flow path. At this time, the two liquid cooling tubes 3 on the opposite sides can both transport the cooling medium, significantly improving the circulation flow rate of the cooling medium and enhancing the temperature reduction and heat dissipation ability, especially suitable for the heat dissipation requirements under the high-power operation of the supercharger pile.

[0044] In this embodiment, each inner tube 32 is communicated with the liquid inlet of the flow distribution controller 13;

[0045] When the connecting hole 43 is communicated with the guide hole, each bypass hole 46 is staggered from the side hole 45.

[0046] In this embodiment, a plurality of the flow control units 4 are arranged in a distributed manner, and each flow control unit 4 is spaced from the fixing frame 21, and the elastic forces of the limiting springs 63 in each flow control unit 4 are different, and the elastic force of the limiting spring 63 in the flow control unit 4 closer to the conduit sleeve 22 is smaller than that on the other side. That is to say, when the cooling medium is pumped and transported at different pressure gradients, the flow control unit 4 affected by the corresponding flow pressure can realize the switching between the single-channel and double-channel of the coolant, and effectively control the flow length ratio of the two paths in the double-channel, realizing hot spot targeted cooling, so that the cooling medium preferentially flows through the high-heat area and directly returns for circulation.

[0047] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation, characterized in that, It includes: A supercharging pile main body (1) with a main board module cavity (11) provided inside. A liquid cooling mechanism (2) is integrally installed in the main board module cavity (11). On one side end face of the outside of the supercharging pile main body (1), a coolant storage tank (12) is installed. A phase change cooling medium is stored in the coolant storage tank (12). A shunt controller (13) is installed in the supercharging pile main body (1). The liquid outlet of the coolant storage tank (12) is communicated with the input end of the shunt controller (13) through a liquid delivery pump; Among them, the liquid cooling mechanism (2) is respectively conductively connected to each discharge port of the shunt controller (13) through a plurality of pipeline systems; The liquid cooling mechanism (2) includes fixing frames (21). There are multiple fixing frames (21) distributed left and right. Each fixing frame (21) is arranged at intervals in the vertical direction of the main board module cavity (11). Liquid cooling pipes (3) are vertically inserted and fixed between the fixing frames (21) on the same side. The multiple liquid cooling pipes (3) are arranged and distributed in the horizontal direction of the fixing frames (21); Two liquid cooling pipes (3) on the opposite sides are connected through a conduit sleeve (22). The lower ends of the liquid cooling pipes (3) are all connected to the liquid discharge port of the shunt controller (13); A blowing fan blade (23) is installed on each fixing frame (21). Ventilation openings are provided on the side wall of the supercharging pile main body (1) at the position of the blowing fan blade (23); A booster pump (26) is provided between the shunt controller (13) and each liquid cooling pipe (3); A branch pipe (31) is also inclined and connected to the end of each liquid cooling pipe (3). The other end of the branch pipe (31) is connected to the liquid inlet of the shunt controller (13). An electromagnetic valve is connected in series on the branch pipe (31); The cooling medium enters each liquid cooling pipe (3) through the booster pump (26) and is discharged through the branch pipe (31) of the liquid cooling pipe (3) on the other side through the conduit sleeve (22), so as to form two different circulation modes from left to right or from right to left.

2. The intelligent temperature-controlled multi-stage liquid-cooled supercharging pile based on adaptive flow regulation according to claim 1, wherein The outlet end of the shunt controller (13) is connected to a heat exchange system through a main circulation pipeline (16). The heat exchange system is arranged on the side end face of the supercharging pile main body (1) opposite to the coolant storage tank (12); The heat exchange system includes a condensation unit (14) and a circulating return pipeline (15). The end of the main circulation pipeline (16) is connected to the inlet of the condensation unit (14). The two ends of the circulating return pipeline (15) are respectively connected to the outlet of the condensation unit (14) and the return interface of the coolant storage tank (12), forming a closed-loop cooling medium circulation channel.

3. The intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation according to claim 1, characterized in that, A plurality of heat conducting fins (24) are arranged and distributed on each fixing frame (21). An intake fan blade (25) is installed on the side of the fixing frame (21) away from the blowing fan blade (23); 4. An intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation according to claim 1, characterized in that An inner pipe (32) is provided in each liquid cooling pipe (3). A flow control unit (4) is connected in series on the inner pipe (32); The flow control unit (4) includes a sealing sleeve (41) fixed inside the liquid cooling pipe (3), and a plurality of guide holes are distributed on its inner circumference. A valve shaft (42) is disposed in the sealing sleeve (41) so as to be relatively deflectable. A connecting hole (43) corresponding to the guide hole is formed in the valve shaft (42). Connecting pipes (44) are hermetically and rotatably sleeved on the upper and lower ends of the valve shaft (42), and the other ends of the connecting pipes (44) are communicated with the inner pipe (32). Moreover, side through holes (46) are symmetrically formed at the upper and lower ends of the valve shaft (42). The cross section of the side through hole (46) is in an L-shaped structure, and side holes (45) are formed on the side walls of the connecting pipes (44).

5. The intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation according to claim 4, wherein, A guide sleeve (6) is slidably sleeved outside the connecting pipe (44) below the valve shaft (42), and a valve plug (61) is coaxially fixed to the end of the guide sleeve (6). A valve ring (62) is fixed inside the liquid cooling pipe (3), and the valve ring (62) is slidably matched with the valve plug (61). An inclined groove is formed on the inner wall of the guide sleeve (6), and a shaft pin (64) is fixed on the valve shaft (42). The shaft pin (64) is slidably connected with the inclined groove. A limiting spring (63) is sleeved on the valve shaft (42), and the lower end of the limiting spring (63) is connected with the guide sleeve (6).

6. The intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation according to claim 5, characterized in that, Each inner pipe (32) is communicated with the liquid inlet of the flow divider controller (13). When the connecting hole (43) is communicated with the guide hole, each side through hole (46) is staggered from the side hole (45).

7. An intelligent temperature-controlled multi-stage liquid-cooled ultra-fast charging pile based on adaptive flow regulation according to claim 6, characterized in that A plurality of the flow control units (4) are arranged and distributed. Each flow control unit (4) is spaced from the fixing frame (21). The elastic forces of the limiting springs (63) in each flow control unit (4) are different, and the elastic force of the limiting spring (63) in the flow control unit (4) closer to the conduit sleeve (22) is smaller than that on the other side.

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