Megawatt super-power liquid cooling charging seat

Abstract

The utility model provides a megawatt super-power liquid cooling charging stand, which comprises a charging stand main body and a liquid cooling assembly, two power terminals are arranged in the charging stand main body, and a first power conversion terminal is connected with a cable; the liquid cooling assembly comprises a heat conduction box, a first liquid cooling pipe and a second liquid cooling pipe, the heat conduction box is in contact with the end face of the power terminal, the first liquid cooling pipe is in direct contact with a cable core of one cable, and the second liquid cooling pipe is in direct contact with a cable core of the other cable; the first liquid cooling pipe and the second liquid cooling pipe are communicated through the heat conduction box to form a circulation loop of cooling liquid. The heat conduction box is in direct contact with the end face of the power terminal, the liquid cooling pipes are directly attached to the wire core, the first liquid cooling pipe, the heat conduction box and the second liquid cooling pipe are communicated in sequence to form a closed cooling loop, cooling liquid can circulate continuously, and the stable cooling function is achieved. Therefore, the technical problem that heat generated by the megawatt-level power charging seat in the high-current transmission process cannot be efficiently dissipated is solved.

Description

A megawatt ultra-high power liquid-cooled charging dock Technical Field

[0001] This utility model relates to the field of heat dissipation technology for charging docks, and in particular to a megawatt ultra-high power liquid-cooled charging dock. Background Technology

[0002] With the development of new energy vehicles, especially electric heavy trucks, electric mining trucks, electric ships, and electric aircraft, the demand for high-power fast charging systems is increasing. Traditional charging technologies have exposed many technical bottlenecks when faced with megawatt-level power transmission requirements. In particular, the heat generated during high-current transmission cannot be dissipated efficiently, becoming a key factor limiting charging efficiency and safety.

[0003] In current technologies, ultra-high-power charging equipment mainly consists of a liquid cooling system at the charging pile end, liquid-cooled cables, and a liquid-cooled gun to increase the charging current-carrying power. However, the power reception at the charging base at the load end is achieved solely by increasing the cross-sectional area of ​​the conductor to conduct ultra-high power. Conventional solutions use large copper rods, large copper busbars, and multiple cables to achieve high-power conduction between the charging base and the battery disconnection unit or battery pack. When the cross-sectional area of ​​the conductor is insufficient, the heat generated during charging can lead to abnormal temperature rise. Increasing the conductor cross-sectional area to accommodate the heat rise indirectly increases the amount of copper used and the weight of the vehicle. Overheating during charging accelerates conductor oxidation, increases conductor resistance, and thus reduces charging efficiency and energy utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a megawatt ultra-high power liquid-cooled charging dock, which solves the technical problem that the heat generated during high current transmission cannot be efficiently dissipated in existing megawatt-level power charging docks.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A megawatt ultra-high power liquid-cooled charging dock includes a charging dock body and a liquid cooling component. Two power terminals are installed inside the charging dock body. Each power terminal is connected to a first power adapter terminal. The first power adapter terminal is connected to a cable. The end of the cable away from the first power adapter terminal is connected to a second power adapter terminal for connecting to a load device.

[0007] The liquid cooling assembly includes a heat-conducting box, a first liquid cooling pipe, and a second liquid cooling pipe. The heat-conducting box is in contact with the end face of the power terminal. The first liquid cooling pipe is in direct contact with the core of one of the cables, and the second liquid cooling pipe is in direct contact with the core of the other cable. The first liquid cooling pipe and the second liquid cooling pipe are connected through the heat-conducting box to form a coolant flow loop.

[0008] Optionally, the heat-conducting box includes a box body and a connecting pipe, the box body and the connecting pipe are formed by sintering, and the end of the connecting pipe extends out of the box body;

[0009] One end of the connecting pipe is connected to the first liquid cooling pipe via a first adapter, and the other end of the connecting pipe is connected to the second liquid cooling pipe via a second adapter.

[0010] Optionally, the charging dock body is equipped with a detection device for covering the first adapter and the second adapter, the detection device being used to detect the coolant leakage at the first adapter and the second adapter.

[0011] Optionally, the detection device includes a storage box, in which detection components, a first water-absorbing component and a second water-absorbing component are installed in a layered manner. The first water-absorbing component and the second water-absorbing component are both used to cover the first adapter and the second adapter. One end of the first liquid cooling pipe and the second liquid cooling pipe is embedded in the storage box.

[0012] The detection assembly includes a detection plate, with the first absorbent component overlapping the detection plate. The detection plate is used to generate a leakage detection signal after contacting the leaking coolant. Two signal leads are installed on the detection plate, which are used to transmit the leakage detection signal from the detection plate.

[0013] Optionally, the detection board is a PCB printed circuit board, the detection board includes a substrate, and a first detection layer and a second detection layer are provided on the substrate with a gap. The first detection layer and the second detection layer are connected by the coolant leaking from the liquid-cooled charging base and generate a leakage detection signal.

[0014] The first detection layer is electrically connected to one of the signal leads, and the second detection layer is electrically connected to the other signal lead.

[0015] Optionally, the first detection layer includes a plurality of parallel first detection strips, one end of each of the plurality of first detection strips is connected to a first connecting strip, and the first connecting strip is electrically connected to one of the signal lead wires;

[0016] The second detection layer includes a plurality of parallel second detection strips, one end of each of the plurality of second detection strips being connected to a second connecting strip, and the second connecting strip being electrically connected to another signal lead wire;

[0017] The first detection strip and the second detection strip are alternately spaced apart, and the first detection strip and the first connecting strip are spaced apart from the second detection strip and the second connecting strip to form a serpentine groove.

[0018] Optionally, the storage box includes a first storage shell, a folding connecting rib, and a second storage shell connected in sequence, the detection plate is installed inside the first storage shell, and the second storage shell is pressed against the second water-absorbing component;

[0019] The first storage shell and the second storage shell are detachably connected. The first storage shell has an integrally molded storage rim that surrounds the leaking liquid stored inside the first storage shell.

[0020] Optionally, the detection device has bolt holes, and the heat-conducting box has through holes corresponding to the bolt holes;

[0021] The charging base body is threadedly connected to a first fixing bolt that passes through the bolt hole and the through hole in sequence.

[0022] Optionally, the power terminal has a plurality of first threaded holes on its end face, and the heat-conducting box is provided with a first fastening bolt that is threadedly connected to the first threaded holes;

[0023] The power terminal has a second threaded hole on its side, and the first power adapter terminal is provided with a second fastening bolt that is threadedly connected to the second threaded hole.

[0024] Optionally, the power terminal has a placement hole on its side for placing a thermistor, and the placement hole is arranged adjacent to the second threaded hole.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention provides a megawatt-level ultra-high power liquid-cooled charging base. The heat-conducting box directly contacts the power terminal face for rapid heat absorption; the liquid-cooling pipe directly adheres to the wire core, achieving rapid heat conduction and liquid dissipation at the heat source, significantly improving cooling efficiency and preventing cable overheating, power terminal oxidation, and safety hazards. A closed cooling circuit is formed by the sequential connection of the first liquid-cooling pipe, the heat-conducting box, and the second liquid-cooling pipe, allowing for continuous coolant circulation independent of the external environment and achieving stable cooling. Because the liquid-cooling pipe is in direct contact with the wire core, the cable structure is compact, saving space. Therefore, this invention solves the technical problem of inefficient heat dissipation during high-current transmission in megawatt-level power charging bases. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0029] Figure 1 is a front view of a megawatt ultra-high power liquid-cooled charging dock disclosed in an embodiment of this utility model;

[0030] Figure 2 is a side view of a megawatt ultra-high power liquid-cooled charging dock disclosed in an embodiment of this utility model;

[0031] Figure 3 is one of the partial explosion structure diagrams of a megawatt ultra-high power liquid-cooled charging base disclosed in the embodiment of this utility model;

[0032] Figure 4 is a second partial explosion structure diagram of a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model;

[0033] Figure 5 is a schematic diagram of the main body of a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model.

[0034] Figure 6 is a three-dimensional structural diagram of the heat conduction box in a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model;

[0035] Figure 7 is an exploded structural diagram of the heat conduction box in a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model;

[0036] Figure 8 is a three-dimensional structural diagram of the power terminal in a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model;

[0037] Figure 9 is a three-dimensional structural schematic diagram of a detection device in a megawatt ultra-high power liquid-cooled charging dock disclosed in an embodiment of this utility model;

[0038] Figure 10 is an exploded structural diagram of a detection device in a megawatt ultra-high power liquid-cooled charging base disclosed in an embodiment of this utility model.

[0039] Figure 11 is a schematic diagram of the detection component in a megawatt ultra-high power liquid-cooled charging dock disclosed in an embodiment of this utility model;

[0040] Figure 12 is an enlarged structural diagram of point A in Figure 11;

[0041] Figure 13 is an enlarged structural diagram of point B in Figure 11;

[0042] Figure 14 is a schematic diagram of the open state of the storage box in a megawatt ultra-high power liquid-cooled charging dock disclosed in an embodiment of this utility model.

[0043] Illustration:

[0044] 10. Charging base body; 11. Power terminal; 111. First threaded hole; 112. Second threaded hole; 113. Placement hole;

[0045] 20. Liquid cooling assembly; 21. Heat-conducting box; 211. Box body; 2111. Perforation; 212. Connecting pipe; 22. First liquid cooling pipe; 23. Second liquid cooling pipe; 24. First adapter; 25. Second adapter;

[0046] 30. First power adapter terminal;

[0047] 40. Cable; 41. Wire core;

[0048] 50. Second power adapter terminal;

[0049] 60. Detection device; 61. Storage box; 611. First storage shell; 6111. Storage edging; 6112. First through hole; 6113. Second through hole; 6114. Clip hole; 612. Folding connecting rib; 613. Second storage shell; 6131. ​​Spring buckle; 614. Bolt hole; 62. Detection assembly; 621. Detection plate; 6211. Base plate; 6212. First detection strip; 6213. First connecting strip; 6214. Second detection strip; 6215. Second connecting strip; 622. Signal lead wire; 63. First absorbent component; 64. Second absorbent component;

[0050] 70. First fastening bolt; 80. Second fastening bolt; 90. First fixing bolt. Detailed Implementation

[0051] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0052] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0053] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0054] This utility model provides a megawatt ultra-high power liquid-cooled charging dock, as shown in Figures 1 to 14, including a charging dock body 10 and a liquid cooling component 20. Two power terminals 11 are installed inside the charging dock body 10. Each power terminal 11 is connected to a first power conversion terminal 30. The first power conversion terminal 30 is connected to a cable 40. The end of the cable 40 away from the first power conversion terminal 30 is connected to a second power conversion terminal 50 for connecting to a load device.

[0055] The liquid cooling assembly 20 includes a heat-conducting box 21, a first liquid cooling pipe 22, and a second liquid cooling pipe 23. The heat-conducting box 21 is in contact with the end face of the power terminal 11. The first liquid cooling pipe 22 is in direct contact with the core 41 of one of the cables 40, and the second liquid cooling pipe 23 is in direct contact with the core 41 of the other cable 40. The first liquid cooling pipe 22 and the second liquid cooling pipe 23 are connected through the heat-conducting box 21 to form a coolant flow loop. In this embodiment, the core 41 of the cable 40 is fixed to the first power adapter terminal 30 and the second power adapter terminal 50 by ultrasonic welding or by crimping with copper tube terminals.

[0056] It should be noted that the megawatt-level ultra-high power liquid-cooled charging base provided by this utility model directly contacts the end face of the power terminal 11 through the heat-conducting box 21, rapidly absorbing heat; the liquid-cooling pipe is directly attached to the wire core 41, achieving rapid heat conduction and liquid heat dissipation at the heat source, significantly improving cooling efficiency and avoiding cable overheating, oxidation of the power terminal 11, and safety hazards. The first liquid-cooling pipe 22, the heat-conducting box 21, and the second liquid-cooling pipe 23 are sequentially connected to form a closed cooling circuit, allowing the coolant to circulate continuously, independent of the external environment, achieving stable cooling. Because the liquid-cooling pipe is in direct contact with the wire core 41, the cable 40 has a compact structure, saving space. Therefore, this utility model solves the technical problem of inefficient heat dissipation during high-current transmission in megawatt-level power charging bases.

[0057] As shown in Figures 3, 6 and 7, the heat-conducting box 21 includes a box body 211 and a connecting pipe 212. The box body 211 and the connecting pipe 212 are formed by sintering, and the end of the connecting pipe 212 extends out of the box body 211.

[0058] One end of the connecting pipe 212 is connected to the first liquid cooling pipe 22 via a first adapter 24, and the other end of the connecting pipe 212 is connected to the second liquid cooling pipe 23 via a second adapter 25. Specifically, the connecting pipe 212 is a metal pipe, and the heat-conducting box 21 is formed by sintering the connecting pipe 212 with ceramic powder.

[0059] It should be noted that by employing the connecting pipe 212 and the ceramic powder sintering process, the heat-conducting box 21 possesses both high mechanical strength and high thermal conductivity. The sintered structure has a dense and uniform crystal arrangement, effectively improving the heat transfer efficiency from the power terminal 11 to the coolant, enhancing the heat dissipation capacity of the heat-conducting box 21 under high-power operation, reducing the risk of local hot spots, and enhancing overall stability. The two ends of the connecting pipe 212 are connected to the first liquid cooling pipe 22 via the first adapter 24 and to the second liquid cooling pipe 23 via the second adapter 25, respectively. This ensures the continuity of the coolant path while also facilitating subsequent disassembly, maintenance, and module replacement. Since the end of the connecting pipe 212 extends out of the box body 211, space is provided for the subsequent layout and interface operation of the liquid cooling pipes, reducing interference between structures and facilitating the embedding of the heat-conducting box 21 into compact equipment or complex wiring environments, thereby improving the overall integration.

[0060] As shown in Figures 1 to 4, a detection device 60 for covering the first adapter 24 and the second adapter 25 is installed inside the charging base body 10. The detection device 60 is used to detect the signal of coolant leakage at the first adapter 24 and the second adapter 25.

[0061] It should be noted that the detection device 60 can monitor for coolant leakage in real time at the first adapter 24 and the second adapter 25. When coolant leaks, the detection device 60 sends a signal to provide timely warning. Early leakage detection can prevent cooling system malfunctions from damaging the charging equipment, ensuring the stability and safety of the charging process.

[0062] As shown in Figures 3, 9 and 10, the detection device 60 includes a storage box 61. Inside the storage box 61, there are detection components 62, a first water-absorbing component 63 and a second water-absorbing component 64 arranged in a layered manner. The first water-absorbing component 63 and the second water-absorbing component 64 are both used to cover the first adapter 24 and the second adapter 25. One end of the first liquid cooling pipe 22 and the second liquid cooling pipe 23 is embedded in the storage box 61.

[0063] The detection assembly 62 includes a detection plate 621, a first absorbent 63 overlapping the detection plate 621, the detection plate 621 is used to generate a leakage detection signal after contact with leaking coolant, and two signal leads 622 are installed on the detection plate 621, the signal leads 622 are used to transmit the leakage detection signal of the detection plate 621.

[0064] It should be noted that, by covering the first adapter 24 and the second adapter 25 with the first absorbent component 63 and the second absorbent component 64, when coolant leaks inside the charging base body 10, the coolant is guided to the detection plate 621 by the siphon effect of the first absorbent component 63 and the second absorbent component 64. The leak detection signal is then transmitted to the upper control system via the signal lead-out line 622, achieving a leak warning. The combined use of the first absorbent component 63, the second absorbent component 64, and the storage box 61 provides multi-layered protection for the charging base, reducing the direct impact of coolant leaks on the system. Simultaneously, in the event of a leak, the leaking liquid is promptly contained and enclosed to prevent its spread, further enhancing the safety of the equipment.

[0065] As shown in Figures 9 to 11, the detection board 621 is a PCB printed circuit board. The detection board 621 includes a substrate 6211. A first detection layer and a second detection layer are provided on the substrate 6211. The first detection layer and the second detection layer are connected by the coolant leaking from the liquid-cooled charging base and generate a leakage detection signal.

[0066] The first detection layer is electrically connected to one of the signal leads 622, and the second detection layer is electrically connected to the other signal lead 622. In practice, the first and second detection layers are alternately arranged.

[0067] It should be noted that the staggered arrangement of the first and second detection layers allows for communication with the coolant leaking into the liquid-cooled charging dock, forming an electrical signal. This enables real-time monitoring of coolant leaks, significantly improving the accuracy and response speed of leak detection. This ensures the system can promptly detect coolant leaks, preventing system overheating or malfunctions. The electrical connection between the signal lead 622 and the detection layers allows the leak detection signal to be efficiently transmitted to other monitoring systems or to trigger safety warnings, ensuring the charging dock's safety and preventing electrical faults or fires caused by leaks. The detection component 62 offers modular functionality, facilitating future maintenance and replacement. Different detection layer spacing arrangements can be flexibly adjusted to adapt to various application requirements, further enhancing the system's maintainability and adaptability.

[0068] As shown in Figures 11 to 13, the first detection layer includes several parallel first detection strips 6212, one end of each of the several first detection strips 6212 is connected to a first connecting strip 6213, and the first connecting strip 6213 is electrically connected to one of the signal lead-out lines 622.

[0069] The second detection layer includes several parallel second detection strips 6214, one end of each second detection strip 6214 is connected to a second connecting strip 6215, and the second connecting strip 6215 is electrically connected to another signal lead 622.

[0070] The first detection strip 6212 and the second detection strip 6214 are alternately spaced apart. The first detection strip 6212 and the first connecting strip 6213 are spaced apart from the second detection strip 6214 and the second connecting strip 6215 to form a serpentine groove.

[0071] It should be noted that the first and second detection layers conduct current and generate a leakage detection signal through coolant leakage. Because the first detection strip 6212 and the second detection strip 6214 are alternately arranged to form a serpentine groove structure, the leakage signal can be sensed over a larger surface area, improving the sensitivity and accuracy of leakage detection. The alternating spacing of the first detection strip 6212 and the second detection strip 6214, forming a serpentine groove, not only optimizes the space utilization of the circuit design but also improves the cooling efficiency of the liquid cooling system and facilitates liquid flow, further enhancing the system's heat dissipation and leakage detection performance.

[0072] As shown in Figures 9 to 14, the storage box 61 includes a first storage shell 611, a folding connecting rib 612 and a second storage shell 613 connected in sequence. The detection plate 621 is installed inside the first storage shell 611, and the second storage shell 613 is pressed against the second water-absorbing member 64.

[0073] The first storage shell 611 and the second storage shell 613 are detachably connected. The first storage shell 611 has an integrally formed storage perimeter 6111, which protects against leakage liquid stored inside the first storage shell 611. Specifically, the first storage shell 611 has a first through hole 6112 and a second through hole 6113. The first through hole 6112 is used to accommodate the pins of the substrate 6211, and the second through hole 6113 is used to accommodate the signal lead 622. The first storage shell 611 has two locking holes 6114, and the second storage shell 613 has a spring-loaded buckle 6131 that engages with the locking holes 6114.

[0074] It should be noted that the first storage shell 611 has an integrally formed storage surround 6111, which can effectively contain any leakage liquid inside the storage box 61, preventing coolant from leaking into other parts and protecting other electrical components from the effects of leakage liquid. Since the first storage shell 611 and the second storage shell 613 are detachably connected, they are easy to disassemble during maintenance or replacement, reducing operational complexity and allowing users to easily clean, inspect, or replace the detection device 60, thus improving product maintainability. By providing the first through hole 6112 and the second through hole, respectively accommodating the pins of the substrate 6211 and the signal lead 622, convenient electrical connection and compact layout are achieved, effectively saving space while ensuring the smooth passage of the signal lead 622 and the pins, reducing potential electromagnetic interference. The cooperation of the snap-hole 6114 and the spring clip 6131 ensures that the first storage shell 611 and the second storage shell 613 of the storage box 61 are firmly connected, avoiding loosening or falling off due to vibration or external force, and improving the overall stability and anti-interference ability of the system.

[0075] As shown in Figures 6 to 14, the detection device 60 has bolt holes 614, and the heat-conducting box 21 has through holes 2111 corresponding to the bolt holes 614; the charging base body 10 is threadedly connected with a first fixing bolt 90 that passes through the bolt holes 614 and the through holes 2111 in sequence. Specifically, both the first housing 611 and the second housing 613 have bolt holes 614. In practical implementation, the charging base can achieve effective cooling under high-power operating conditions. At the same time, the detection device 60 monitors the coolant status in real time. Once a leak occurs, it can be detected in time and a warning signal can be issued to avoid damage to the equipment caused by cooling system failure.

[0076] It should be noted that by using the first fixing bolt 90 to fix the detection device 60 and the heat conduction box 21 to the charging base body 10, the connection between the various components is more secure, preventing the components from loosening due to vibration or other factors during use, thus improving the reliability and long-term stability of the equipment. Because the first fixing bolt 90 provides a fixing function, it not only ensures that the detection device 60 fits tightly with the heat conduction box 21, ensuring accurate detection of potential coolant leaks and other problems under high current operating conditions, but also prevents the detection device 60 from shifting or malfunctioning due to structural instability during use.

[0077] As shown in Figures 3 to 8, the end face of the power terminal 11 is provided with a plurality of first threaded holes 111, and the heat conduction box 21 is provided with a first fastening bolt 70 that is threadedly connected to the first threaded holes 111.

[0078] The power terminal 11 has a second threaded hole 112 on its side, and the first power adapter terminal 30 is provided with a second fastening bolt 80 that is threadedly connected to the second threaded hole 112.

[0079] It should be noted that the heat-conducting box 21 is securely mounted to the end face of the power terminal 11 by the first fastening bolt 70. The end face of the power terminal 11 can firmly contact the heat-conducting box 21, ensuring effective heat conduction to the heat-conducting box 21. This tight connection helps the power terminal 11 dissipate heat quickly, thereby avoiding overheating during high current transmission. The power terminal 11 and the first power adapter terminal 30 are securely connected by the second fastening bolt 80, making the charging base structure more stable and further enhancing the reliability and safety of the system. This not only improves the heat dissipation efficiency but also reduces the risk of electrical failures or fires caused by loose connections.

[0080] As shown in Figures 3 to 8, a placement hole 113 for placing a thermistor is provided on the side of the power terminal 11. The placement hole 113 is arranged adjacent to the second threaded hole 112. By arranging the placement hole 113 and the threaded hole adjacent to each other, electromagnetic interference or thermal interference between different components is avoided, a reasonable spatial layout is achieved, which is conducive to good contact between the power terminal 11 and the sensor, ensuring data accuracy and improving the overall stability and detection accuracy of the charging device.

[0081] It should be noted that the placement hole 113 is specifically designed for a thermistor, enabling real-time monitoring of the temperature of the power terminal 11. The thermistor provides feedback when the temperature is too high, triggering an overheat protection mechanism to prevent electrical faults or fire hazards caused by overheating. This effectively ensures temperature controllability during charging and improves the safety of the charging equipment. Because the placement hole 113 is adjacent to the second threaded hole 112, the compact layout makes the entire charging dock structure more efficient and space-saving. Temperature detection can be performed within a limited space without requiring additional space or complex wiring, improving the space utilization of the charging dock and ensuring the compactness and integration of the overall structure.

[0082] Working principle: When the charging dock is working, the power terminal 11 generates heat under high current and long-term operation. Since the heat conduction box 21 is in direct contact with the end face of the power terminal 11, the heat generated by the power terminal 11 is guided to the connecting pipe 212. The first liquid cooling pipe 22, the connecting pipe 212 and the second liquid cooling pipe 23 form a cooling liquid circuit, which quickly removes the heat on the connecting pipe 212, achieving efficient heat dissipation.

[0083] The first absorber 63 and the second absorber 64 cover the first adapter 24 and the second adapter 25. When coolant leakage occurs at the first adapter 24 and the second adapter 25, the first absorber 63 and the second absorber 64 can siphon the coolant and guide it to the detection plate 621. The coolant comes into contact with the first detection strip 6212 and the second detection strip 6214, thereby making the detection plate 621 conductive and generating a leakage detection signal. Then, through the signal lead-out line 622, the leakage detection signal can be transmitted to the upper control system, realizing the detection and early warning of coolant leakage.

[0084] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A megawatt ultra-high power liquid-cooled charging dock, characterized in that, The device includes a charging dock body (10) and a liquid cooling assembly (20). The charging dock body (10) contains two power terminals (11), each of which is connected to a first power adapter terminal (30). Each first power adapter terminal (30) is connected to a cable (40), and the end of the cable (40) furthest from the first power adapter terminal (30) is connected to a second power adapter terminal (50) for connection to a load device. The liquid cooling assembly (20) includes a heat-conducting box. (21) First liquid cooling pipe (22) and second liquid cooling pipe (23), the heat-conducting box (21) is in contact with the end face of the power terminal (11), the first liquid cooling pipe (22) is in direct contact with the core (41) of one of the cables (40), and the second liquid cooling pipe (23) is in direct contact with the core (41) of the other cable (40); the first liquid cooling pipe (22) and the second liquid cooling pipe (23) are connected through the heat-conducting box (21) to form a flow circuit for the coolant.

2. The megawatt ultra-high power liquid-cooled charging dock according to claim 1, characterized in that, The heat-conducting box (21) includes a box body (211) and a connecting pipe (212). The box body (211) and the connecting pipe (212) are formed by sintering. The end of the connecting pipe (212) extends out of the box body (211). One end of the connecting pipe (212) is connected to the first liquid cooling pipe (22) by a first adapter (24), and the other end of the connecting pipe (212) is connected to the second liquid cooling pipe (23) by a second adapter (25).

3. The megawatt ultra-high power liquid-cooled charging dock according to claim 2, characterized in that, The charging base body (10) is equipped with a detection device (60) for covering the first adapter (24) and the second adapter (25). The detection device (60) is used to detect the leakage of coolant at the first adapter (24) and the second adapter (25).

4. The megawatt ultra-high power liquid-cooled charging dock according to claim 3, characterized in that, The detection device (60) includes a storage box (61), in which a detection component (62), a first absorbent component (63), and a second absorbent component (64) are installed in a layered manner. The first absorbent component (63) and the second absorbent component (64) are used to cover the first adapter (24) and the second adapter (25). One end of the first liquid cooling pipe (22) and the second liquid cooling pipe (23) is embedded in the storage box (61). The detection component (62) includes a detection plate (621), in which the first absorbent component (63) overlaps with the detection plate (621). The detection plate (621) is used to generate a leakage detection signal after contact with leaking coolant. Two signal lead-out lines (622) are installed on the detection plate (621), which are used to transmit the leakage detection signal of the detection plate (621).

5. The megawatt ultra-high power liquid-cooled charging dock according to claim 4, characterized in that, The detection board (621) is a PCB printed circuit board. The detection board (621) includes a substrate (6211). A first detection layer and a second detection layer are provided on the substrate (6211) with a gap. The first detection layer and the second detection layer are connected by the coolant leaking from the liquid-cooled charging base and generate a leakage detection signal. The first detection layer is electrically connected to one of the signal lead lines (622), and the second detection layer is electrically connected to the other signal lead line (622).

6. The megawatt ultra-high power liquid-cooled charging dock according to claim 5, characterized in that, The first detection layer includes a plurality of parallel first detection strips (6212), one end of each of the plurality of first detection strips (6212) is connected to a first connecting strip (6213), and the first connecting strip (6213) is electrically connected to one of the signal lead-out lines (622); the second detection layer includes a plurality of parallel second detection strips (6214), one end of each of the plurality of second detection strips (6214) is connected to a second connecting strip (6215), and the second connecting strip (6215) is electrically connected to another of the signal lead-out lines (622); the first detection strips (6212) and the second detection strips (6214) are alternately spaced apart, and the first detection strips (6212) and the first connecting strips (6213) are spaced apart from the second detection strips (6214) and the second connecting strips (6215) to form a serpentine groove.

7. The megawatt ultra-high power liquid-cooled charging dock according to claim 4, characterized in that, The storage box (61) includes a first storage shell (611), a folding connecting rib (612), and a second storage shell (613) connected in sequence. The detection plate (621) is installed inside the first storage shell (611), and the second storage shell (613) is pressed against the second absorbent component (64). The first storage shell (611) and the second storage shell (613) are detachably connected. The first storage shell (611) is provided with an integrally formed storage edging (6111), which encloses the leakage liquid stored inside the first storage shell (611).

8. The megawatt ultra-high power liquid-cooled charging dock according to any one of claims 3 to 7, characterized in that, The detection device (60) has a bolt hole (614), and the heat conduction box (21) is provided with a through hole (2111) corresponding to the bolt hole (614); the charging base body (10) is threadedly connected with a first fixing bolt (90) that passes through the bolt hole (614) and the through hole (2111) in sequence.

9. The megawatt ultra-high power liquid-cooled charging dock according to any one of claims 1 to 7, characterized in that, The power terminal (11) has a plurality of first threaded holes (111) on its end face, and the heat-conducting box (21) is provided with a first fastening bolt (70) threadedly connected to the first threaded hole (111); the power terminal (11) has a second threaded hole (112) on its side, and the first power adapter terminal (30) is provided with a second fastening bolt (80) threadedly connected to the second threaded hole (112).

10. The megawatt ultra-high power liquid-cooled charging dock according to claim 9, characterized in that, The power terminal (11) has a placement hole (113) on its side for placing a thermistor, and the placement hole (113) is arranged adjacent to the second threaded hole (112).

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