A high-voltage power supply adaptive temperature control heat dissipation device

Abstract

This invention relates to the field of high-voltage power supply heat dissipation technology and discloses a high-voltage power supply adaptive temperature control heat dissipation device, including a distribution box. A main distribution pipe is passed through one side wall of the distribution box. Several branch distribution pipes are connected to one side of the main distribution pipe inside the distribution box. Several liquid outlet holes are distributed on the upper part of the branch distribution pipes. Several movable distribution pipes are slidably sleeved on the outside of the branch distribution pipes. The movable distribution pipes slide and seal through the side wall of the distribution box. Heat dissipation plates are provided on the outside of the heat-generating electrical components in the high-voltage power supply. The movable distribution pipes supply cooling medium to the corresponding heat dissipation plates. The cooling medium at the output end of the heat dissipation plate is discharged into the main return pipe. The distribution box is connected to a secondary return pipe. The distribution box of this invention has a compensating circulating cooling medium that does not enter the movable distribution pipes and heat dissipation plates. When the temperature of the heat dissipation plate is too high, the movable distribution pipes cover a larger area of ​​the branch distribution pipes, increasing the cooling flow of the heat dissipation plate, reducing the compensating cooling flow, and improving the heat dissipation capacity of key locations without adjusting the total circulation flow.

Description

Technical Field

[0001] This invention relates to the field of high-voltage power supply heat dissipation technology, specifically to a high-voltage power supply adaptive temperature control heat dissipation device. Background Technology

[0002] High-voltage power supplies can efficiently convert conventional low-voltage electrical energy into high-voltage energy of several kilovolts or even higher levels, achieving precise voltage and current stabilization and safe regulation. They provide stable and reliable driving energy for various equipment and processes requiring strong electric fields and high potential differences, supporting key physical processes such as electron acceleration, electric field ionization, dielectric breakdown, electrostatic adsorption, and high-voltage discharge. High-voltage power supplies are core power sources for industrial dust removal, electrostatic spraying, ozone generation, and material modification processes, and are also indispensable basic components for high-end equipment such as medical imaging equipment, precision analytical instruments, scientific accelerators, and laser and plasma devices.

[0003] The heat dissipation structure of the high-voltage power supply can continuously and quickly conduct and dissipate the heat generated by the internal power devices, high-voltage transformers, rectifier circuits, etc. during operation, effectively controlling the temperature rise of the whole machine and avoiding the degradation of insulation performance, increased risk of high voltage breakdown, component parameter drift and even burnout failure caused by high temperature. At the same time, it maintains the stable accuracy of output voltage and current, and prevents overheating from causing safety hazards such as arcing and flashover.

[0004] Common heat dissipation structures and methods for high-voltage power supplies mainly include forced air cooling and liquid cooling. Forced air cooling uses a fan installed inside the chassis, along with air ducts and heat sink fins, to create directional airflow and remove heat from power devices and high-voltage modules. The disadvantages are higher noise and the introduction of dust. Liquid cooling uses water or oil cooling, circulating coolant within the cavity and channels for heat exchange. It has strong heat dissipation capacity, low noise, and good insulation, making it suitable for high-power, highly integrated applications and applications with strict requirements for electromagnetic interference and environmental noise.

[0005] In high-voltage power supplies, multiple electrical components require heat dissipation. Multiple heat sinks are distributed across these components to ensure heat is dissipated. However, since different heat-generating components produce varying amounts of heat, uneven heat dissipation can occur if the coolant is not properly distributed. Patent CN119545767B discloses a coolant distribution assembly and heat sink for heat sinks. It modifies the compression of elastic hoses to adjust the flow rate of coolant within them, ensuring uniform heat dissipation without increasing equipment costs. It automatically distributes coolant to heat sinks with varying heat outputs, resulting in even heat dissipation. However, this existing technology has the following drawbacks: without adjusting the liquid cooling pump, the pump's cooling medium supply capacity is fixed. If the outlet temperature of multiple heat sinks is too high, the flow rate within each elastic hose needs to be increased. However, the liquid cooling pump cannot meet this requirement. Therefore, it is necessary to add adjustment functions for the liquid cooling pump's power and output or circulation volume to achieve uniform heat dissipation for all components. Summary of the Invention

[0006] The purpose of this invention is to solve at least one of the problems in the prior art and to provide a high-voltage power supply adaptive temperature control heat dissipation device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A high-voltage power supply adaptive temperature control and heat dissipation device includes a distribution box. A main distribution pipe for receiving circulating cooling medium is provided through one side wall of the distribution box. Several branch distribution pipes are connected to one side of the main distribution pipe inside the distribution box. Several liquid outlet holes are evenly distributed axially on the upper part of the branch distribution pipes. Several movable distribution pipes are slidably sleeved on the outside of the branch distribution pipes. The movable distribution pipes slide and seal through the side wall of the distribution box. Heat dissipation plates are provided on the outside of the heat-generating electrical components in the high-voltage power supply. The movable distribution pipes supply cooling medium to the corresponding heat dissipation plates. The cooling medium at the output end of the heat dissipation plate is discharged into the main return pipe. The distribution box is connected to a secondary return pipe.

[0008] Furthermore, the movable distribution pipe slides axially along the outer side of the distribution branch pipe, so that different numbers of liquid outlet holes on the distribution branch pipe correspond to the inner side of the movable distribution pipe, thereby adjusting the amount of cooling medium entering the movable distribution pipe per unit time; the cooling medium discharged from the liquid outlet holes that do not correspond to the movable distribution pipe enters the auxiliary return pipe through the distribution box.

[0009] Furthermore, the high-voltage power supply includes a main housing, an external heat sink is installed on one side wall of the main housing, and an external fan is installed on the outside of the external heat sink; the output end and input end of the external heat sink are respectively connected to a liquid supply pipe for supplying liquid to the main distribution pipe and a circulation pump, and the main return pipe and the auxiliary return pipe are both connected to the input end of the circulation pump.

[0010] Furthermore, an internal radiator is connected in series on the secondary return pipe, and an internal circulation fan is installed on one side of the internal radiator.

[0011] Furthermore, the inner end of the movable distribution tube is provided with a slider, and the inner wall of the distribution box is provided with a slide rail for the slider to slide linearly.

[0012] Furthermore, the distribution branch pipe is provided with a baffle, which includes an integrally connected arc-shaped section and a straight section; the arc-shaped section blocks the upper part of the connection between the distribution branch pipe and the distribution main pipe, and the straight section extends to the middle of the distribution branch pipe. The baffle allows the cooling medium of the distribution main pipe to enter from the lower part of the inlet end of the distribution branch pipe, flow upward toward the outlet hole after reaching the middle of the distribution branch pipe.

[0013] Furthermore, the input and output ends of the heat sink are respectively connected to a distribution hose and a drain pipe. The input end of the distribution hose is connected to the outer end of the movable distribution pipe, and the output end of the drain pipe is connected to the main return pipe.

[0014] Furthermore, a compensation box for driving the sliding distribution pipe is provided between the drain pipe and the main return pipe.

[0015] Furthermore, the compensation box includes several coolant chambers through which the cooling medium passes, several expansion chambers corresponding to the coolant chambers, and several heat conductors extending to the coolant chambers and expansion chambers at both ends respectively. The expansion chambers are connected to piston chambers, and a compensation piston is provided in the piston chambers. The compensation piston is connected to a connecting rod, and the connecting rod extends to the outside of the compensation box and is connected to the movable distribution pipe.

[0016] Furthermore, the coolant chamber is connected to a drain pipe and a main return pipe at both ends, respectively; the heat conductor includes a central heat-conducting rod, and a plurality of heat-conducting fins are provided on the outer side of the central heat-conducting rod; the cross-sectional area of ​​the piston chamber is smaller than the cross-sectional area of ​​the expansion chamber.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The distribution box of the present invention has a compensating circulating cooling medium that does not enter the movable distribution pipe and the heat sink. When the heat sink temperature is too high, the distribution branch pipe covers a larger area through the movable distribution pipe, increasing the cooling flow of the heat sink and reducing the compensating cooling flow, thereby improving the heat dissipation capacity of key locations. The adaptive distribution of the heat dissipation medium flow can be achieved without adjusting the total circulation flow or the circulation pump. When the temperature of the heat sink plate rises, the movable distribution pipe automatically slides to cover more liquid outlet holes, directly increasing the flow rate of the corresponding heat sink plate; the flow rate of the uncovered liquid outlet holes decreases synchronously, and the compensation flow is reduced; the total circulation flow rate is not changed throughout the process, and there is no need to adjust the power of the circulation pump, so as to achieve precise distribution of flow rate on demand and avoid the energy consumption and control complexity caused by frequent pump speed adjustment. In this invention, each heat sink corresponds to an independent movable distribution tube, which can independently adjust the flow rate according to the temperature of a single heating element. This solves the problems of uneven heating of different power devices in a high-voltage power supply and large differences in the temperature of the heat sink, ensuring that the whole machine adapts and adjusts uniformly, and reducing the risk of insulation degradation and device drift caused by local overheating. This invention employs a thermal expansion compensation box and piston transmission structure, using the temperature change of the cooling medium as the driving signal. It is a purely mechanical action, requiring no electronic control components such as sensors, controllers, and actuators. It is suitable for high-voltage and strong electromagnetic interference environments, with strong anti-interference capabilities, low failure rate, and long service life. The present invention provides an integrated baffle with an arc-shaped section and a straight section inside the distribution branch pipe, which guides the cooling medium to enter from the lower part of the branch pipe and flow upward to the outlet hole from the middle part, thereby reducing the inlet eddy and uneven flow distribution, promoting stable liquid discharge from each outlet hole, and improving the flow regulation accuracy. This invention features an internal radiator on the secondary return pipe, which creates flow resistance to the compensating circulating cooling medium, controlling the flow of the cooling circulating medium and the compensating circulating medium to be relatively balanced, and preventing the cooling medium from directly flowing back through the secondary return pipe in large quantities; and through the internal circulation fan, it allows air to circulate inside the main casing of the high-voltage power supply, promoting internal temperature balance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention.

[0019] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the present invention.

[0020] Figure 3 This is a side view of the internal structure of the present invention.

[0021] Figure 4 This is a first-view perspective three-dimensional structural diagram of the distribution box and compensation box of the present invention.

[0022] Figure 5 This is a second-view perspective three-dimensional structural diagram of the distribution box and compensation box of the present invention.

[0023] Figure 6 This is a schematic diagram of the internal structure of the distribution box and compensation box of the present invention.

[0024] Figure 7 This is a schematic diagram of the inner structure of the top wall of the dispensing box according to the present invention.

[0025] Figure 8 This is a schematic diagram of the inner structure of the upper half of the compensation box in the cross-section state of the present invention.

[0026] Figure 9 This is a schematic diagram of the external structure of the main distribution pipe and the branch distribution pipe of the present invention.

[0027] Figure 10This is a schematic diagram of the cross-sectional structure of the main distribution pipe and the branch distribution pipe of the present invention.

[0028] Figure 11 This is a schematic diagram of the dispensing box housing structure of the present invention.

[0029] In the diagram: 1. Distribution box; 2. Main distribution pipe; 3. Branch distribution pipe; 4. Liquid outlet; 5. Movable distribution pipe; 6. Sealing perforation; 7. Heat sink; 8. Main housing; 9. External radiator; 10. External heat dissipation fins; 11. External fan; 12. Circulation pump; 13. Liquid supply pipe; 14. Main return pipe; 15. Auxiliary return pipe; 16. Internal radiator; 17. Internal heat dissipation fins; 18. Internal circulation fan; 19. Slider; 20. Slide rail; 21. Baffle; 22. Drain pipe; 23. Compensation box; 24. Coolant chamber; 25. Expansion chamber; 26. Central heat conductor; 27. Heat conductor plate; 28. Piston chamber; 29. ​​Compensating piston; 30. Connecting rod; 31. Ear plate; 32. Distribution hose. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention; that is, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Specific embodiments of the high-voltage power supply adaptive temperature control heat dissipation device provided by the present invention: Please refer to the attached document. Figures 1-11 The high-voltage power supply adaptive temperature control heat dissipation device is adapted to the use scenarios of high-power, highly integrated, and strong electromagnetic interference high-voltage power supplies. It achieves adaptive distribution of cooling medium flow with a purely mechanical structure, and solves the problem of uneven heat dissipation and local overheating of different heat-generating components inside the high-voltage power supply without adjusting the total flow of the circulating pump 12.

[0032] The high-voltage power supply includes a main housing 8. An external heat sink 9 is installed through one side wall of the main housing 8. The side of the external heat sink 9 facing the outside of the main housing 8 has several evenly spaced external heat dissipation fins 10. An external fan 11 is installed on the outside of the external heat dissipation fins 10. When the external fan 11 is running, the airflow outside the main housing 8 passes through the external heat dissipation fins 10, quickly dissipating the heat of the cooling medium inside the external heat sink 9 to the external environment, completing the external circulation heat dissipation. The output end of the external heat sink 9 is connected to a liquid supply pipe 13, and the input end is connected to a circulation pump 12 through a pipe. The end of the liquid supply pipe 13 away from the external heat sink 9 is connected to the main distribution pipe 2, continuously supplying circulating cooling medium to the entire device.

[0033] The distribution box 1 is a sealed cavity structure. The main distribution pipe 2 is horizontally and sealed through one side wall of the distribution box 1. The main distribution pipe 2 is a pipe section located inside the distribution box 1, and is evenly and vertically connected to multiple parallel distribution branch pipes 3. The distribution branch pipes 3 are in communication with the interior of the main distribution pipe 2. The distribution branch pipes 3 are horizontally arranged and evenly spaced along the axial direction of the main distribution pipe 2. The ends of the main distribution pipe 2 are located inside the distribution box 1. In this embodiment, the distribution branch pipes 3 are parallel to each other and are all located on the same side of the main distribution pipe 2.

[0034] Each distribution branch pipe 3 has multiple sets of liquid outlet holes 4 evenly distributed along its axial direction on its upper pipe wall. Each set of liquid outlet holes 4 has at least one hole, and all holes are located on the upper part of the distribution branch pipe 3. The cooling medium can be discharged outward through the liquid outlet holes 4. The end of the distribution branch pipe 3, i.e., the end furthest from the main distribution pipe 2, is closed, and the end of the distribution branch pipe 3 is located inside the distribution box 1, with a lateral gap between it and the side wall of the distribution box 1. A movable distribution pipe 5 is coaxially slidably sleeved on the outside of the distribution branch pipe 3, and the movable distribution pipe 5 and the distribution branch pipe 3 are in a sliding seal fit. The inner diameter of the movable distribution pipe 5 is larger than the outer diameter of the distribution branch pipe 3, so that a gap is formed between them for the cooling medium to pass through. The end of the movable distribution pipe 5 near the main distribution pipe 2 has a sealing plate, which has a through hole for the distribution branch pipe 3 to slide through relative to it. In some embodiments, a sealing ring is provided in the through hole to prevent the cooling medium from passing through.

[0035] The movable distribution pipe 5 passes through the side wall of the distribution box 1. Correspondingly, the movable distribution pipes 5 are parallel and have uniform spacing. A sealing perforation 6 is opened on the side wall of the distribution box 1 at the position corresponding to the movable distribution pipe 5. The movable distribution pipe 5 passes through the sealing perforation 6 and extends to the outside of the distribution box 1. A rubber sealing ring is provided inside the sealing perforation 6. The sealing perforation 6 with the rubber sealing ring ensures that there is no leakage of cooling medium inside the distribution box 1 during the sliding of the movable distribution pipe 5.

[0036] The movable distribution tube 5 is located inside the distribution box 1. One end of the outer ring is fixedly connected to the slider 19. The inner wall of the distribution box 1 is provided with a slide rail 20 extending along the axial direction of the distribution branch tube 3 at the position corresponding to the slider 19. The slider 19 and the slide rail 20 are slidably engaged, which restricts the movable distribution tube 5 to slide linearly along the axial direction of the distribution branch tube 3 and limits the linear sliding stroke of the movable distribution tube 5. In this embodiment, each movable distribution tube 5 is connected to two sliders 19. The two sliders 19 are symmetrically located on the upper and lower sides of the movable distribution tube 5. The inner sides of the upper and lower walls of the distribution box 1 are provided with slide rails 20.

[0037] Each distribution branch pipe 3 is equipped with a baffle 21, which consists of an integrally formed arc-shaped section and a straight section. The arc-shaped section blocks the upper space at the connection between the distribution branch pipe 3 and the main distribution pipe 2, while the straight section extends horizontally along the interior of the distribution branch pipe 3 to the middle of the distribution branch pipe 3. The baffle 21 divides the half of the distribution branch pipe 3 into upper and lower parts. This structure allows the cooling medium in the main distribution pipe 2 to enter from the lower end of the distribution branch pipe 3, flow forward along the interior of the distribution branch pipe 3 to the middle, and then turn upwards to flow towards the outlet hole 4. This reduces the eddy current disturbance at the inlet and distributes the flow rate from the middle of the distribution branch pipe 3 to the outlet holes 4 at various points on the distribution branch pipe 3, improving the uniformity of the liquid output from each outlet hole 4, significantly reducing the distance to the far outlet hole 4, and promoting a balanced and stable liquid output flow rate.

[0038] Heat sinks 7 are mounted on the surfaces of the heat-generating electrical components inside the main housing 8 of the high-voltage power supply. The heat sinks 7 are made of a high thermal conductivity material to quickly absorb the heat generated by the electrical components. The input end of the heat sink 7 is connected to a distribution hose 32. The end of the distribution hose 32 away from the heat sink 7 is sealed to the outer end of the corresponding movable distribution pipe 5. Both the heat sink 7 and the outer end of the movable distribution pipe 5 are provided with connectors that connect to the distribution hose 32. The distribution hose 32 can accommodate the movement of the movable distribution pipe 5 and ensure the normal flow of the circulating medium. The output end of the heat sink 7 has a connector and is connected to a drain pipe 22. The end of the drain pipe 22 away from the heat sink 7 is connected to the main return pipe 14, completing the cooling medium circulation path of the heat sink 7.

[0039] A compensation box 23 is connected in series between the drain pipe 22 and the main return pipe 14. The compensation box 23 is a temperature-driven purely mechanical actuator used to automatically drive the sliding of the movable distribution pipe 5 according to the temperature of the cooling medium at the outlet of the heat sink 7. The compensation box 23 has multiple sets of independent coolant chambers 24, expansion chambers 25 and piston chambers 28. The number of coolant chambers 24 corresponds one-to-one with the number of distribution branch pipes 3 and heat sink 7. The two ends of the coolant chambers 24 are respectively connected to the drain pipe 22 and the main return pipe 14. Specifically, one side wall of the compensation box 23 has several input connectors connected to the drain pipe 22, and the upper wall of the compensation box 23 has several output connectors. The input connectors and output connectors are connected to the corresponding coolant chambers 24. The cooling medium is output through the coolant chambers 24. A collector is connected between the output connector and the main return pipe 14. The collector includes a main collection pipe connected to the main return pipe 14. The main collection pipe is connected to several collection branch pipes connected to the output connectors. The collection branch pipes can be fixed to the outside of the output connectors by means of flexible hoses and clamps. The high-temperature cooling medium flowing out of the heat sink 7 first flows through the coolant chamber 24 and then merges into the main return pipe 14. When the heat of the cooling medium discharged from the heat sink 7 is transferred to the coolant chamber 24.

[0040] Each coolant chamber 24 and expansion chamber 25 is permeated with a heat conductor, which includes a central heat-conducting rod 26 and multiple heat-conducting fins 27 evenly distributed on the outside of the central heat-conducting rod 26. The two ends of the central heat-conducting rod 26 extend into the coolant chamber 24 and expansion chamber 25 respectively, rapidly transferring heat from the high-temperature medium in the coolant chamber 24 to the expansion chamber 25. The expansion chamber 25 is filled with a thermally expanding medium, which expands significantly upon heating. The end of the expansion chamber 25 furthest from the heat conductor connects to a piston chamber 28. The cross-sectional area of ​​the piston chamber 28 is smaller than that of the expansion chamber 25 to amplify the expansion thrust.

[0041] In some embodiments, the central heat-conducting rod 26 is a vacuum heat pipe. The vacuum heat pipe has a vacuum chamber inside and is encapsulated with a heat-conducting working fluid. The two ends of the vacuum heat pipe extend into the coolant chamber 24 and the expansion chamber 25, respectively. The vacuum heat pipe relies on the phase change of the internal working fluid for heat transfer. Its heat conduction efficiency is much higher than that of a solid metal heat-conducting rod. It can quickly transfer the heat in the coolant chamber 24 to the expansion chamber 25, so that the expansion fluid can respond quickly to temperature changes and improve the response speed of flow regulation.

[0042] The expansion fluid is selected from transformer oil, silicone oil, fluorinated oil, kerosene, or paraffin-based expansion fluid; preferably, insulating silicone oil or high-voltage transformer oil is preferred, as it has the characteristics of stable thermal expansion coefficient, excellent insulation performance, high temperature resistance, stable chemical properties, and non-corrosiveness to seals and metal cavities, and can maintain reliable operation under high voltage power supply, strong electric field, high temperature, and long-term cyclic conditions. When the temperature of the coolant at the outlet of the heat sink 7 rises, heat is transferred to the expansion fluid chamber 25 through the heat conductor, and the expansion fluid expands in volume due to heating, pushing the compensation piston 29 to move; when the temperature drops, the expansion fluid cools and contracts, and the compensation piston 29 returns to its original position under the action of the sealing reset structure, thereby realizing the purely mechanical adaptive sliding of the movable distribution pipe 5 according to temperature, without the need for electrical control drive.

[0043] A compensating piston 29 is slidably and sealed inside the piston chamber 28. The end of the compensating piston 29 away from the expansion fluid chamber 25 is connected to a connecting rod 30. The connecting rod 30 extends out of the outside of the compensating box 23 and is connected to the corresponding movable distribution pipe 5 through the ear plate 31. The lower part of the ear plate 31 surrounds the outer side of the outer end of the movable distribution pipe 5, and the upper part of the ear plate 31 is higher than the movable distribution pipe 5. The upper end of the ear plate 31 is provided with a through hole for the connecting rod 30 to pass through. The end of the connecting rod 30 is connected to two nuts by threads. The two nuts are located on both sides of the ear plate 31 to realize the connection between the connecting rod 30 and the ear plate 31. In this embodiment, the height of the compensating box 23 is higher than that of the distribution box 1 and corresponds to the upper end of the ear plate 31.

[0044] The bottom of the distribution box 1 is connected to the secondary return pipe 15. The ends of both the main return pipe 14 and the secondary return pipe 15 are connected to the input end of the circulation pump 12, forming a complete closed loop. An internal radiator 16 is connected in series on the secondary return pipe 15. One side of the internal radiator 16 is provided with internal heat dissipation fins 17, and an internal circulation fan 18 is installed on one side of the internal heat dissipation fins 17. The internal circulation fan 18 drives the air inside the main casing 8 to flow through the internal heat dissipation fins 17, balancing the internal temperature. At the same time, the internal radiator 16 forms a flow resistance to the cooling medium in the secondary return pipe 15, preventing the compensation circulation medium from directly flowing back in large quantities, and ensuring a balanced flow ratio between the heat dissipation circulation and the compensation circulation.

[0045] In this embodiment, the external radiator 9, the internal radiator 16, and the heat sink 7 all have reciprocating fluid channels through which the cooling medium passes, ensuring the contact area with the cooling medium so that the cooling medium can perform sufficient heat exchange when passing through, thus ensuring heat exchange efficiency.

[0046] The working process of this device is as follows: The circulating pump 12 drives the cooling medium to be cooled by the external radiator 9, and then enters the main distribution pipe 2 through the supply pipe 13, and then distributes it to each distribution branch pipe 3. Part of the cooling medium enters the movable distribution pipe 5 through the outlet hole 4 on the distribution branch pipe 3, which is covered by the movable distribution pipe 5. It then flows into the heat sink 7 through the distribution hose 32, absorbs heat from the heating element, and then flows into the main return pipe 14 through the drain pipe 22 and the compensation box 23. The other part is discharged into the distribution box 1 through the outlet hole 4 that is not covered by the movable distribution pipe 5. It then flows back to the circulation pump 12 through the auxiliary return pipe 15 and the inner radiator 16, forming a compensation cycle. When the heat output of a certain heating element increases and the temperature of the medium at the outlet of the heat sink 7 rises, the high-temperature medium flows into the coolant chamber 24 corresponding to the compensation box 23. The heat is transferred to the expansion chamber 25 through the heat conductor. The internal thermal expansion medium expands due to the heat, pushing the compensation piston 29 and the connecting rod 30 to extend outward. This causes the movable distribution pipe 5 to slide axially along the distribution branch pipe 3, covering more outlet holes 4, increasing the flow rate of the coolant entering the heat sink 7, and improving the heat dissipation capacity. At the same time, the number of uncovered outlet holes 4 decreases, and the compensation circulation flow rate decreases accordingly. When the temperature of the heating element drops, the temperature of the medium at the outlet of the heat sink 7 decreases, and the temperature of the medium in the coolant chamber 24 corresponding to the compensation box 23 decreases. This temperature is then transferred to the expansion chamber 25 via the heat conductor. The internal thermal expansion medium cools down and contracts, causing the compensation piston 29 and connecting rod 30 to retract inward. This drives the movable distribution pipe 5 to slide axially along the distribution branch pipe 3, reducing the number of outlet holes 4 covered, reducing the flow rate of the heat sink 7, and restoring flow balance.

[0047] The entire adjustment process does not change the total flow and power of the circulating pump 12. It is a purely mechanical adaptive action with no electrical control components. It is suitable for high-voltage and strong electromagnetic interference environments, and can accurately distribute the flow of each heat sink 7 as needed, ensuring uniform heat dissipation inside the high-voltage power supply and avoiding local overheating.

[0048] This device adopts a closed-loop liquid cooling architecture, ensuring the cooling medium is completely sealed and leak-free, meeting the insulation and dustproof requirements of high-voltage power supplies. The external heat sink 9 handles external heat dissipation, while the internal heat sink 16 balances internal airflow and controls flow resistance. The compensation box 23 is driven by purely mechanical temperature control, with no electronic components and strong resistance to electromagnetic interference. The device has a compact structure, is easy to install, and can be directly integrated into various high-power, high-voltage power supplies, ensuring long-term stable operation and effectively reducing the risk of localized overheating and insulation failure.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-voltage power supply self-adaptive temperature control heat dissipation device, characterized in that, The utility model provides a cooling system of high voltage power supply, including distribution box (1), one side wall of distribution box (1) is equipped with distribution main pipe (2) of receiving circulating cooling medium, and the distribution main pipe (2) in distribution box (1) is connected with a plurality of distribution branch pipe (3) on one side, and the upper portion of distribution branch pipe (3) is evenly distributed with a plurality of liquid outlet hole (4), and the outside of distribution branch pipe (3) is sleeved with a plurality of movable distribution pipe (5), and movable distribution pipe (5) is slidably sealed through the lateral wall of distribution box (1), and the outside of heating electrical element in high voltage power supply is equipped with heat dissipation plate (7), and movable distribution pipe (5) respectively supplies cooling medium for corresponding heat dissipation plate (7), and the output end cooling medium of heat dissipation plate (7) is discharged into main return pipe (14), and distribution box (1) is connected with auxiliary return pipe (15).

2. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 1, characterized in that, Movable distribution pipe (5) slides along the outside of distribution branch pipe (3) and makes the different number of liquid outlet hole (4) on distribution branch pipe (3) correspond to the inside of movable distribution pipe (5), and the amount of cooling medium entering movable distribution pipe (5) per unit time is adjusted, and the cooling medium discharged from the liquid outlet hole (4) not corresponding to movable distribution pipe (5) is discharged into auxiliary return pipe (15) through distribution box (1).

3. The high-voltage power supply self-adaptive temperature control heat dissipation device according to claim 1 or 2, characterized in that, The high voltage power supply includes a main housing (8), an outer heat sink (9) is provided on one side wall of the main housing (8), and an outer fan (11) is installed on the outside of the outer heat sink (9); the output end and the input end of the outer heat sink (9) are respectively connected with a liquid supply pipe (13) for supplying liquid to the distribution main pipe (2) and a circulating pump (12), and the main return pipe (14) and the auxiliary return pipe (15) are connected with the input end of the circulating pump (12).

4. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 3, characterized in that, The auxiliary return pipe (15) is connected in series with an inner heat sink (16), and an inner circulating fan (18) is installed on one side of the inner heat sink (16).

5. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 1 or 2, characterized in that, The inner end of the movable distribution pipe (5) is provided with a sliding block (19), and the inner wall of the distribution box (1) is provided with a sliding rail (20) for linear sliding of the sliding block (19).

6. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 1 or 2, characterized in that, The distribution branch pipe (3) is provided with a baffle (21), and the baffle (21) includes an integrally connected arc segment and straight segment; the arc segment shields the upper part of the connection between the distribution branch pipe (3) and the distribution main pipe (2), and the straight segment extends to the middle part of the distribution branch pipe (3); the baffle (21) enables the cooling medium of the distribution main pipe (2) to flow from the lower part of the inlet end of the distribution branch pipe (3) to the middle part of the distribution branch pipe (3) and then upwardly towards the liquid outlet hole (4).

7. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 1 or 2, characterized in that, The input end and the output end of the heat dissipation plate (7) are respectively connected with a distribution hose (32) and a liquid discharge pipe (22), the input end of the distribution hose (32) is connected with the outer end of the movable distribution pipe (5), and the output end of the liquid discharge pipe (22) is connected with the main return pipe (14).

8. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 7, characterized in that, A compensation box (23) is arranged between the liquid discharge pipe (22) and the main return pipe (14) to drive the sliding of the movable distribution pipe (5).

9. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 8, characterized in that, The compensation box (23) comprises cooling liquid chambers (24) through which cooling medium passes, expansion liquid chambers (25) corresponding to the cooling liquid chambers (24), and heat conductors extending to the cooling liquid chambers (24) and the expansion liquid chambers (25) respectively at two ends, the expansion liquid chambers (25) are connected with piston chambers (28), the piston chambers (28) are provided with compensation pistons (29), the compensation pistons (29) are connected with connecting rods (30), the connecting rods (30) extend to the outside of the compensation box (23) and are connected with the movable distribution pipes (5).

10. The high-voltage power supply self-adapting temperature control heat dissipation device according to claim 9, characterized in that, The cooling liquid chambers (24) are connected with liquid discharge pipes (22) and main liquid return pipes (14) respectively at two ends; the heat conductors comprise central heat conducting rods (26), the central heat conducting rods (26) are provided with heat conducting fins (27) outside; the piston chambers (28) have a smaller cross-sectional area than the expansion liquid chambers (25).

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