Water cooling structure and method for improving heat dissipation of moving coil of large-thrust vibration table

Abstract

The application discloses a water cooling structure and method for improving the heat dissipation of a large-thrust vibration table moving coil, adopts a single-pass water path layout with four inlets and two outlets, sets independent water inlet and return water distribution units, and is matched with four water inlet branches and two water return branches; the hollow aluminum wire winding adopts a double-wire parallel winding structure, has the functions of electricity conduction and cooling water path, cooling water enters from the upper end skirt ring of the moving coil framework, flows downwards along the winding in a single pass to exchange heat, and is directly discharged from the lower end winding end part; the upper end adopts an integrated water and electricity conversion structure, and realizes water and electricity synchronous flexible conversion through a rubber pipe of the built-in copper wire. The application significantly reduces the water path resistance, eliminates the gravitational potential energy loss, obviously improves the cooling flow, guarantees the continuous low-temperature cooling of the key joint parts of the moving coil, greatly improves the overall heat dissipation capacity, and is simple in structure, installation and maintenance.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for electric vibration tables, specifically to a water-cooling structure and method for improving the heat dissipation of the moving coil of a high-thrust vibration table. Background Technology

[0002] High-thrust vibration table moving coils typically employ a double-winding method, meaning the winding starts at the frame skirt ring, winds to the helical end, and then winds back to the skirt ring, achieving a "two-in, two-out" water inlet and outlet configuration. The traditional two-in, two-out cooling method is simple: cold water enters from the inner winding at the skirt ring and flows out from the outer winding. This results in insufficient cooling of the outer winding at the skirt ring while simultaneously neutralizing the temperature at the inner winding skirt ring. Since the main failures of direct-coupled electric vibration tables occur in the first few turns of the conductor where the moving coil frame skirt ring connects to the moving coil coil, this area experiences the greatest alternating force. Furthermore, the excessively high temperature at the connection point leads to a decline in the adhesive layer's performance, a major cause of failure. However, the most critical problem is that with the current cooling method, under constant pressure, the water flow rate is too small to remove all the heat, causing heat damage to the frame and affecting equipment operation.

[0003] The existing cooling method requires the cooling water to pass through the entire winding, which is over 100 meters long. The water loses a lot of pressure along the entire pipeline. In addition, the current method of water entering from the head of the frame and flowing along the spiral winding to the end of the winding before overcoming the gravitational potential energy to flow to the head of the moving coil frame results in poor cooling and heat dissipation. At the same time, the temperature of the first few turns of the conductor where the moving coil frame skirt ring connects to the moving coil coil is too high, causing frequent equipment problems.

[0004] Therefore, there is an urgent need for a water-cooling structure and method to improve the heat dissipation of the moving coil of a high-thrust vibration table. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a water-cooling structure and method for improving the heat dissipation of the moving coil of a high-thrust vibration table.

[0006] This invention discloses a water-cooling structure for improving the heat dissipation of the moving coil of a high-thrust vibration table. The vibration table includes a fixed part and a moving coil part that can reciprocate along the axial direction. The moving coil part includes a skeleton and a hollow aluminum wire winding wound around the skeleton. The hollow aluminum wire serves as both a conductive winding and a cooling water channel carrier. The water-cooling structure includes an inlet water cooling unit, a return water cooling unit, four inlet water branches, and two return water branches. The input end of the water inlet unit is used to connect to external cooling water, and the output end is divided into four paths, which are respectively connected to the inlet ends of the four water inlet branches; the outlet ends of the four water inlet branches are all connected to the upper end of the hollow aluminum wire winding, and the cooling water enters the hollow aluminum wire from the skirt ring at the upper end of the skeleton. The hollow aluminum wire winding is spirally wound from top to bottom along the skeleton, and a water outlet is provided at the lower end of the winding. After the four water inlets flow from top to bottom and exchange heat inside the hollow aluminum wire, they are combined into two streams and discharged from the lower water outlet. The inlet ends of the two return water branches are connected to the outlet interfaces at the lower end of the hollow aluminum line through a flexible connection structure, and the outlet ends are connected to the input end of the return water distribution unit. The return water distribution unit combines the two return water streams into one output stream to the external cooling unit, forming a one-way, top-down closed-loop cooling water path.

[0007] As a further improvement of the present invention, the water inlet and water outlet units are two independent water distribution blocks, namely a water inlet water outlet block with one inlet and four outlets and a water outlet water outlet block with two inlets and one outlet, and both water distribution blocks are fixed on the base of the vibration table.

[0008] As a further improvement of the present invention, each of the water inlet branches includes, in sequence, a water inlet connector, a water inlet pipe, and a water-electricity conversion structure at the upper end of the moving coil; the water inlet end of the water inlet connector is connected to the water inlet water distribution unit through a flexible pipe, and the water outlet end is sealed to the lower end of the water inlet pipe; the water inlet pipe is arranged axially, and its upper end is sealed to the stationary side of the water-electricity conversion structure at the upper end of the moving coil; the moving side of the water-electricity conversion structure at the upper end of the moving coil is fixed to the upper skirt ring of the moving coil skeleton and vibrates synchronously with the moving coil.

[0009] As a further improvement of the present invention, the upper end water and electricity conversion structure of the moving coil includes a moving coil upper cover water and electricity conversion fixing seat and a moving coil upper cover water and electricity conversion connector; the moving coil upper cover water and electricity conversion fixing seat is screwed and fixed to the upper electrode plate of the vibration table, which is the stationary side base; the moving coil upper cover water and electricity conversion connector is screwed and fixed to the moving coil upper cover water and electricity conversion fixing seat, which is the stationary side water and electricity interface.

[0010] As a further improvement of the present invention, the upper water-electricity adapter structure of the moving coil also includes a water-electricity adapter inlet, which is fixed to the upper skirt ring of the moving coil skeleton; the water-electricity adapter on the upper cover of the moving coil and the water-electricity adapter inlet are connected and conductive through a rubber water pipe; a copper wire is fixed inside the rubber water pipe, and the two ends of the copper wire are electrically connected to the stationary side and the moving coil side respectively, so as to conduct the moving coil winding.

[0011] As a further improvement of the present invention, each of the return water branches includes, in sequence, a moving coil return water inlet, a moving coil outlet block and water inlet, a return water pipe, and a moving coil return water connector; The return water inlet of the moving coil is welded and fixed to the lower end of the hollow aluminum wire winding, and vibrates synchronously with the moving coil. The moving coil water outlet block and water nozzle are fixed components, and the moving coil return water inlet is connected to the water inlet side of the moving coil water outlet block and water nozzle through a flexible pipeline. The water outlet side of the moving coil water outlet block and the water nozzle is sealed to the upper end of the return water pipe. The return water pipe is arranged axially, and its lower end is sealed to the moving coil return water connector. The water outlet end of the moving coil return water connector is connected to the return water distribution unit.

[0012] As a further improvement of the present invention, the moving coil water outlet block and water nozzle are fixed to the bottom of the central magnetic pole of the vibration table.

[0013] As a further improvement of the present invention, the hollow aluminum wire winding adopts a double-wire parallel winding structure, with the two hollow aluminum wires electrically connected in parallel and each forming an independent cooling water circuit; the four upper ends of the two hollow aluminum wires correspond to four water inlet branches respectively, and the lower ends of the two hollow aluminum wires are respectively combined to form two return water circuits.

[0014] As a further improvement of the present invention, the pipeline connection between the fixed components is sealed by welding; the flexible connection structure is sealed by rubber water pipes and ring clamps.

[0015] This invention also discloses a water-cooling method for improving the heat dissipation of the moving coil of a high-thrust vibration table, based on the above-mentioned water-cooling structure, comprising: Step S1, Water Diversion: The low-temperature cooling water output from the external cooling unit is sent into the water diversion unit and split into four branches. Step S2, Top water supply: The four cooling water lines are transported upwards along the vertical water inlet pipes to the top of the moving coil. After passing through the water and electricity transfer structure at the top of the moving coil, the water is fed into the upper end of the hollow aluminum wire winding from the skirt ring at the top of the skeleton. Step S3, Single-pass heat exchange: The four cooling water flows from top to bottom in a single pass inside the hollow aluminum wire with double parallel winding, directly absorbing the Joule heat of the hollow aluminum wire to complete the heat exchange. Step S4, Water Outlet at the Bottom: The warm water after heat exchange is directly discharged from the winding end at the bottom of the frame, and the four water outlets are combined into two return water outlets. Step S5, Consolidation and Return: The two return water streams are transported downwards through the return water branch to the return water diversion unit, and then combined into one stream before being sent back to the external cooling unit to complete the cycle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention transforms the traditional two-inlet, two-outlet single-end water circuit into a four-inlet, two-outlet single-pass water circuit with water entering from the top and exiting from the bottom. On the one hand, it expands the water inlet branch to four channels, reducing the flow velocity and friction resistance of a single channel. On the other hand, it eliminates the path of the return water turning back upwards, halving the effective length of the pipeline. At the same time, it completely eliminates the gravitational potential energy loss that the cooling water needs to overcome to flow back upwards. Under the same water supply pressure, it significantly increases the total flow rate of cooling water, thereby enhancing the overall heat dissipation capacity of the moving coil from the root.

[0017] This invention moves all the water outlets down to the winding end, so that the first few turns of the upper skirt ring of the skeleton are in contact with the coil only by low-temperature water. This completely avoids the problem of high-temperature return water neutralizing the water temperature at the end in the traditional structure, ensuring that the joint part where the moving coil is under the greatest stress and where failures are most likely to occur is always in an effective cooling state, reducing the risk of adhesive layer failure due to high temperature and reducing equipment failures.

[0018] This invention only adjusts the water inlet and outlet method and interface layout based on the original dual-line parallel winding coil. The core components all adopt mature pipeline and sealing technology in the industry. The overall structure is easy to install and maintain, and does not require any subversive changes to the magnetic circuit and main structure of the vibration table, resulting in low engineering implementation costs. Attached Figure Description

[0019] Figure 1 This is a front view of a water-cooled structure for improving heat dissipation of the moving coil of a high-thrust vibration table, as disclosed in an embodiment of the present invention. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view of a water-cooled structure for improving heat dissipation of the moving coil of a high-thrust vibration table, as disclosed in an embodiment of the present invention. Figure 4 This is a bottom view of the water-cooled structure for improving the heat dissipation of the moving coil of a high-thrust vibration table, as disclosed in an embodiment of the present invention. Figure 5 This is a partial cross-sectional view of the moving coil portion of a water-cooled structure for improving heat dissipation of the moving coil of a high-thrust vibration table, as disclosed in an embodiment of the present invention. Figure 6 This is a flowchart of a water-cooling method for improving the heat dissipation of the moving coil of a high-thrust vibration table, as disclosed in an embodiment of the present invention.

[0020] In the picture: 1. Base; 2. Lower electrode plate; 3. Magnet ring; 4. Central magnetic pole; 5. Upper electrode plate; 6. Moving coil frame; 7. Hollow aluminum wire winding; 8. Inlet water block; 9. Inlet connector; 10. Inlet water pipe; 11. Moving coil top cover water-electricity adapter fixing seat; 12. Moving coil top cover water-electricity adapter; 13. Water-electricity adapter inlet nozzle; 14. Inlet side rubber water pipe; 15. Moving coil return water connector; 16. Return water side rubber water pipe; 17. Moving coil outlet block and nozzle; 18. Return water pipe; 19. Moving coil return water connector; 20. Return water block; 21. Top cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings: like Figure 1 , Figure 5 As shown, a water-cooled structure for improving heat dissipation of the moving coil of a high-thrust vibration table, provided by the present invention, is applied to a high-thrust electric vibration table. The vibration table includes a fixed part and a moving coil part capable of reciprocating vibration along the axial direction. The fixed part mainly includes a base 1, a lower electrode plate 2, a magnetic ring 3, a central magnetic pole 4, an upper electrode plate 5, and an upper cover 21. The lower electrode plate 2 is fixedly installed on the upper part of the base 1, the magnetic ring 3 is fixed at the outer ring position of the lower electrode plate 2, and the central magnetic pole 4 is fixed in a columnar shape at the center of the lower electrode plate 2, forming an annular working air gap between the magnetic ring 3 and the central magnetic pole 4; the upper electrode plate 5 covers the upper ends of the magnetic ring 3 and the central magnetic pole 4 to seal the upper magnetic circuit and concentrate the magnetic field in the annular air gap; the upper cover 21 covers the outside of the upper electrode plate 5 as a protective outer shell for the upper part of the equipment.

[0025] In the above embodiment, preferably, the moving coil mainly includes a moving coil frame 6 and a hollow aluminum wire winding 7. The moving coil frame 6 is a cylindrical structure, coaxially sleeved in the annular air gap outside the central magnetic pole 4, and can reciprocate along the axial direction of the vibration table; the hollow aluminum wire winding 7 adopts a double-wire parallel winding structure and is wound around the outer wall of the moving coil frame 6. The two hollow aluminum wires are electrically connected in parallel, and their internal cavities form independent cooling water channels. The hollow aluminum wire winding 7 also serves as a conductive winding and a cooling water channel carrier. After an alternating current is applied, it is driven by the Ampere force in the magnetic field to vibrate the moving coil frame 6.

[0026] like Figure 1-4 As shown, in the above embodiment, preferably, the water-cooling structure includes an inlet water distribution block 8, four inlet water branches, two return water branches, and a return water distribution block 20, which together form a top-down single-pass closed-loop cooling water circuit. Each inlet water branch includes an inlet connector 9, an inlet water pipe 10, and a water-electricity conversion structure at the upper end of the moving coil. The inlet water distribution block 8 is a one-inlet, four-outlet structure, fixed to the base 1. Its input end is connected to the low-temperature cooling water of the external cooling unit, and its output end is divided into four paths, each connected to one of the four inlet connectors 9. The inlet connectors 9 are fixedly installed on the base 1. The inlet water pipe 10 is arranged vertically along the axial direction of the vibration table, with its lower end sealed to the inlet connector 9 and its upper end extending to the upper electrode plate 5 and sealed to the stationary side of the water-electricity conversion structure at the upper end of the moving coil.

[0027] In the above embodiment, preferably, the upper water-electricity transfer structure of the moving coil includes a moving coil upper cover water-electricity transfer fixing base 11, a moving coil upper cover water-electricity adapter 12, and a water-electricity adapter inlet 13. The moving coil upper cover water-electricity transfer fixing base 11 is fixed to the upper electrode plate 5 via a threaded connection, serving as the mounting base on the stationary side; the moving coil upper cover water-electricity adapter 12 is fixed to the moving coil upper cover water-electricity transfer fixing base 11 via a threaded connection, serving as the water-electricity integrated interface on the stationary side; the water-electricity adapter inlet 13 is fixed to the upper skirt ring of the moving coil frame 6, vibrating synchronously with the moving coil, serving as the upper water inlet interface on the moving coil side, and the four water-electricity adapter inlets 13 are respectively connected to the four upper ports of the hollow aluminum wire winding 7. The water-electricity adapter 12 on the moving coil cover and the water inlet 13 of the water-electricity adapter are connected and conductive through the water inlet side rubber water pipe 14. The water inlet side rubber water pipe 14 is equipped with a copper wire, and the two ends of the copper wire are electrically connected to the stationary side and the moving coil side respectively, so as to conduct the current of the hollow aluminum wire winding 7 and realize the synchronous flexible connection between the water circuit and the circuit.

[0028] In the above embodiment, preferably, the moving coil top cover water and electricity adapter fixing base 11 is a block-shaped base with an L-shaped water flow path inside. Its lower end has a threaded interface that is sealed and connected to the water inlet pipe 10, and its upper end has a flange mounting surface. The side of the base has mounting ears, which are fixed to the upper electrode plate 5 by bolts, serving as the mounting base on the stationary side. After the water flows upward from the water inlet pipe 10 into the adapter fixing base, it turns through the internal L-shaped flow path and flows out from the upper outlet. The moving coil top cover water and electricity adapter 12 is a pagoda-type connector with a mounting flange, which is fixed to the upper flange surface of the moving coil top cover water and electricity adapter fixing base 11 by bolts. Its lower end is sealed and connected to the water flow path inside the adapter fixing base, and its upper end is a pagoda-shaped pipe connector for inserting the water inlet side rubber water pipe 14, serving as the water and electricity integrated interface on the stationary side.

[0029] In the above embodiment, preferably, each return water branch includes, in sequence, a moving coil return water inlet 15, a return water side rubber water pipe 16, a moving coil water outlet block and water nozzle 17, a return water pipe 18, and a moving coil return water connector 19. There are two rotating coil return water inlets 15, which are welded and fixed to the lower end of the hollow aluminum wire winding 7. They vibrate synchronously with the rotating coil. Each rotating coil return water inlet 15 corresponds to the water outlet of one hollow aluminum wire, forming two water outlets. The rotating coil water outlet block and water nozzle 17 are fixed components, two in total, both fixed to the bottom of the central magnetic pole 4. Their water inlet side is connected to the rotating coil return water inlet 15 through the return water side rubber water pipe 16, and their water outlet side is sealed to the upper end of the return water pipe 18. The return water pipe 18 is arranged vertically along the axis of the vibration table, and its lower end is sealed to the rotating coil return water connector 19. The rotating coil return water connector 19 is fixedly installed on the base 1. Both rotating coil return water connectors 19 are connected to the return water dispensing block 20. The return water dispensing block 20 has a two-inlet and one-outlet structure, fixed on the base 1, and is used to combine the two return waters into one and output it to the external cooling unit.

[0030] In the above embodiments, preferably, all pipe connections between fixed components are sealed by welding; all flexible connection structures are sealed by rubber water pipes and ring clamps, which ensures the water circuit sealing while compensating for the relative displacement caused by the reciprocating vibration of the moving coil.

[0031] like Figure 6 As shown, a water-cooling heat dissipation method for improving the heat dissipation of the moving coil of a high-thrust vibration table, based on the above-mentioned water-cooling structure, includes the following steps: Step S1, water diversion: The low-temperature cooling water output from the external cooling unit is sent into the water diversion unit (water diversion block 8) and is divided into four branches, which enter each water inlet pipe 10 through four water inlet connectors 9 respectively. Step S2, Top water supply: The four cooling waters are transported upwards along the vertical water inlet pipe 10 to the top of the moving coil. After passing through the moving coil upper cover water and electricity adapter fixing seat 11, the moving coil upper cover water and electricity adapter 12, the water inlet side rubber water pipe 14 and the water and electricity adapter inlet nozzle 13, the water is fed into the upper end of the hollow aluminum wire winding 7 from the upper skirt ring of the moving coil skeleton 6. Step S3, Single-pass heat exchange: The four cooling water flows from top to bottom in a single pass inside the hollow aluminum wire winding 7 with double parallel windings, and exchanges heat with the hollow aluminum wire winding 7, directly absorbing the Joule heat generated by the winding being energized, thus completing the heat exchange process. Step S4, Water outlet at the lower end: The warm water after heat exchange is directly discharged from the winding end at the lower end of the moving coil frame 6. The water outlets of the two hollow aluminum wire windings 7 are respectively collected into two return water outlets 15 through the two moving coil return water inlets 15. Step S5, Consolidation and Return: The two return water streams are transported downwards to the return water distribution block 20 via the return water side rubber water pipe 16, the moving coil water outlet block and water nozzle 17, the return water pipe 18 and the moving coil return water connector 19. After being consolidated into one stream, the water is sent back to the external cooling unit to complete the complete cooling cycle.

[0032] Compared to the traditional U-shaped water channel with two inlets and two outlets and the same end inlet and outlet, the water-cooling structure of this embodiment can significantly reduce the frictional resistance along the water channel, eliminate gravitational potential energy loss, and greatly improve the cooling flow rate and heat dissipation capacity. This can be verified through derivation using fluid dynamics formulas. According to the formula for calculating pressure loss along the friction (Darcy-Weisbach formula): ; In the formula, λ is the coefficient of friction; ρ is the density of water; d is the inner diameter of the pipe; v is the flow velocity in the pipe; L is the length of the pipe.

[0033] With a constant inlet pressure, this scheme changes the traditional two-inlet, two-outlet U-shaped loop to a four-inlet, two-outlet single-pass loop. The effective length of a single pipeline is reduced to half of the original length, and the number of inlet branches increases from two to four, doubling the total flow area. (Based on the flow rate formula:) (S is the effective area of ​​the liquid flow). According to calculations, the total flow rate of cooling water can be increased by about 1.414 times under the same pressure conditions, which effectively enhances the heat exchange efficiency.

[0034] Meanwhile, traditional water cooling systems require cooling water to flow upwards from the winding end to the frame head, necessitating work to overcome gravitational potential energy. For high-thrust vibration equipment, the distance from the frame head to the winding end is typically over 1 meter, corresponding to a flow velocity loss due to the gravitational potential energy required to overcome, which is approximately: ; In this design, the cooling water flows in from the head of the frame and is discharged directly from the winding end, eliminating the need for upward backflow and completely eliminating this part of the gravitational potential energy loss, thus greatly improving the effective head utilization rate of the water pump.

[0035] Furthermore, since all water outlets are moved to the winding end, the first few turns of the area where the upper skirt ring of the skeleton connects with the hollow aluminum wire winding 7 are always in contact with low-temperature inlet water. This completely avoids the problem of high-temperature return water neutralizing the inlet water temperature at the end in traditional structures, ensuring that the joint area where the moving coil experiences the greatest stress and is prone to failure is always in an effective cooling state. This reduces the risk of insulation layer failure due to high temperature, reduces equipment failure, and extends the service life of the moving coil. This structure only adjusts the water inlet and outlet method and interface arrangement based on the original double-wire parallel-wound moving coil. The overall installation is simple and maintenance is convenient. No radical changes to the vibration table magnetic circuit and main structure are required, resulting in low project implementation costs.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A water-cooling structure for improving heat dissipation of the moving coil of a high-thrust vibration table, the vibration table comprising a fixed part and a moving coil part capable of reciprocating along the axial direction, the moving coil part comprising a frame and a hollow aluminum wire winding wound around the frame, the hollow aluminum wire serving simultaneously as a conductive winding and a cooling water channel carrier; characterized in that, The water-cooling structure includes an inlet water cooling unit, a return water cooling unit, four inlet water branches, and two return water branches; The input end of the water inlet unit is used to connect to external cooling water, and the output end is divided into four paths, which are respectively connected to the inlet ends of the four water inlet branches; the outlet ends of the four water inlet branches are all connected to the upper end of the hollow aluminum wire winding, and the cooling water enters the hollow aluminum wire from the skirt ring at the upper end of the skeleton. The hollow aluminum wire winding is spirally wound from top to bottom along the skeleton, and a water outlet is provided at the lower end of the winding. After the four water inlets flow from top to bottom and exchange heat inside the hollow aluminum wire, they are combined into two streams and discharged from the lower water outlet. The inlet ends of the two return water branches are connected to the outlet interfaces at the lower end of the hollow aluminum line through a flexible connection structure, and the outlet ends are connected to the input end of the return water distribution unit. The return water distribution unit combines the two return water streams into one output stream to the external cooling unit, forming a one-way, top-down closed-loop cooling water path.

2. The water-cooled structure according to claim 1, characterized in that, The water inlet and water outlet units are two independent water distribution blocks, namely a water inlet water outlet block with one inlet and four outlets and a water outlet water outlet block with two inlets and one outlet. Both water distribution blocks are fixed on the base of the vibration table.

3. The water-cooled structure according to claim 1, characterized in that, Each of the aforementioned water inlet branches sequentially includes a water inlet connector, a water inlet pipe, and a water-electricity conversion structure at the upper end of the moving coil; the water inlet end of the water inlet connector is connected to the water inlet water distribution unit through a flexible pipe, and the water outlet end is sealed to the lower end of the water inlet pipe; the water inlet pipe is arranged axially, and its upper end is sealed to the stationary side of the water-electricity conversion structure at the upper end of the moving coil; the moving side of the water-electricity conversion structure at the upper end of the moving coil is fixed to the upper skirt ring of the moving coil skeleton and vibrates synchronously with the moving coil.

4. The water-cooled structure according to claim 3, characterized in that, The upper water and electricity transfer structure of the moving coil includes a moving coil upper cover water and electricity transfer fixing base and a moving coil upper cover water and electricity adapter; the moving coil upper cover water and electricity transfer fixing base is screwed and fixed to the upper electrode plate of the vibration table, which is the stationary side base; the moving coil upper cover water and electricity adapter is screwed and fixed to the moving coil upper cover water and electricity transfer fixing base, which is the stationary side water and electricity interface.

5. The water-cooled structure according to claim 4, characterized in that, The upper water-electricity adapter structure of the moving coil also includes a water-electricity adapter inlet, which is fixed to the upper skirt ring of the moving coil skeleton; the water-electricity adapter on the upper cover of the moving coil and the water-electricity adapter inlet are connected by a rubber water pipe; a copper wire is fixed inside the rubber water pipe, and the two ends of the copper wire are electrically connected to the stationary side and the moving coil side respectively, so as to conduct the moving coil winding.

6. The water-cooled structure according to claim 1, characterized in that, Each of the aforementioned return water branches includes, in sequence, a moving coil return water inlet, a moving coil outlet block and water inlet, a return water pipe, and a moving coil return water connector; The moving coil return water inlet is welded and fixed to the lower end of the hollow aluminum wire winding, and vibrates synchronously with the moving coil. The moving coil water outlet block and water nozzle are fixed components, and the moving coil return water inlet is connected to the water inlet side of the moving coil water outlet block and water nozzle through a flexible pipeline. The water outlet side of the moving coil water outlet block and the water nozzle is sealed to the upper end of the return water pipe. The return water pipe is arranged axially, and its lower end is sealed to the moving coil return water connector. The water outlet end of the moving coil return water connector is connected to the return water distribution unit.

7. The water-cooled structure according to claim 6, characterized in that, The moving coil water outlet block and water nozzle are fixed to the bottom of the central magnetic pole of the vibration table.

8. The water-cooled structure according to claim 1, characterized in that, The hollow aluminum wire winding adopts a double-wire parallel winding structure, with the two hollow aluminum wires electrically connected in parallel and each forming an independent cooling water circuit; the four upper ends of the two hollow aluminum wires correspond to four water inlet branches, and the lower ends of the two hollow aluminum wires converge to form two return water circuits.

9. The water-cooled structure according to claim 1, characterized in that, The pipe connections between fixed components are sealed by welding; the flexible connection structure uses rubber water pipes with ring clamps for tight sealing.

10. A water-cooling method for improving the heat dissipation of the moving coil of a high-thrust vibration table, based on the water-cooling structure described in any one of claims 1-9, characterized in that, include: Step S1, Water Diversion: The low-temperature cooling water output from the external cooling unit is sent into the water diversion unit and split into four branches. Step S2, Top water supply: The four cooling water lines are transported upwards along the vertical water inlet pipes to the top of the moving coil. After passing through the water and electricity transfer structure at the top of the moving coil, the water is fed into the upper end of the hollow aluminum wire winding from the skirt ring at the top of the skeleton. Step S3, Single-pass heat exchange: The four cooling water flows from top to bottom in a single pass inside the hollow aluminum wire with double parallel winding, directly absorbing the Joule heat of the hollow aluminum wire to complete the heat exchange. Step S4, Water Outlet at the Bottom: The warm water after heat exchange is directly discharged from the winding end at the bottom of the frame, and the four water outlets are combined into two return water outlets. Step S5, Consolidation and Return: The two return water streams are transported downwards through the return water branch to the return water diversion unit, and then combined into one stream before being sent back to the external cooling unit to complete the cycle.

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