Electronic component liquid cooling compatibility testing device with multi-working-condition simulation

Abstract

The invention discloses an electronic component liquid cooling compatibility testing device with multi-working-condition simulation, and relates to the technical field of electronic component thermal management testing, and the technical scheme is as follows: the electronic component liquid cooling compatibility testing device comprises a table, a fixed frame is fixedly arranged at the top of the table, circular rings are fixedly arranged on two side walls in the fixed frame, and a test bearing mechanism is arranged in the fixed frame; a controller is installed on one side of the fixing frame, and a simulation control mechanism is arranged on one side of the table. Pressure pulsation simulation, gas-liquid mixing simulation, rapid temperature shock simulation and a plurality of turbulent flow structures are integrated in one set of device, programming is carried out through a controller, and a plurality of turbulent flow structures can be simulated in a single test cycle or among multiple cycles. Various complex working conditions such as temperature violent fluctuation, pressure pulsation and gas-containing operation possibly experienced by the cooling liquid in practical application are continuously or alternately simulated, the limitation that a traditional testing method can only conduct single static or simple cycle testing is overcome, and the testing result is more comprehensive and more real.

Description

Technical Field

[0001] This invention relates to the field of thermal management testing technology for electronic components, and specifically to a liquid-cooled compatibility testing device for electronic components with multi-condition simulation. Background Technology

[0002] With the rapid development of high power density electronic devices (such as server CPUs / GPUs, power chips, battery packs, etc.), liquid cooling technology has become a key solution due to its efficient heat dissipation capabilities. The long-term compatibility of coolants (such as water, ethylene glycol solutions, insulating oils, new dielectric fluids, etc.) with electronic components and their packaging materials is directly related to the reliability, safety and lifespan of the system.

[0003] Existing compatibility testing methods are mostly static immersion or simple cyclic testing, which cannot simulate the complex state changes that coolant undergoes in actual applications, such as periodic and drastic temperature fluctuations (start-stop conditions), local high temperatures (hot spots), flow rate changes, pressure pulsations, and gas-liquid phase transitions. Test samples are usually completely immersed in still or slow-flowing liquids, which cannot simulate the contact state between coolant and specific parts of the component surface (heat dissipation substrate) in the actual flow channels inside the cold plate. This is inefficient, as a single test can only verify a single operating condition, and multiple independent experiments are required for multiple operating conditions, resulting in long cycles and high costs. Summary of the Invention

[0004] Therefore, the present invention provides a liquid-cooled compatibility testing device for electronic components with multi-condition simulation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquid-cooled compatibility testing device for electronic components with multi-condition simulation, comprising a table, a fixed frame fixedly mounted on the top of the table, rings fixedly mounted on both inner side walls of the fixed frame, a test bearing mechanism inside the fixed frame, a controller mounted on one side of the fixed frame, and a simulation control mechanism mounted on one side of the table;

[0006] The test support mechanism includes a rotating cylinder, which is sleeved around the two rings and connected to the rings via bearings. Two gear rings are fixedly installed inside the rotating cylinder. A rotating rod is connected to the inside of a fixed frame via bearings. A first motor is fixedly installed on one side of the fixed frame, and the output end of the first motor is fixedly connected to the rotating rod. Two first gears are fixedly sleeved on the outside of the rotating rod, and the first gears mesh with the gear rings. Multiple test support components are provided outside the rotating cylinder. Each support component includes a test flow channel, and multiple connecting blocks are fixedly installed on one side of the test flow channel, with the connecting blocks fixed to the rotating cylinder. The test flow channel is equipped with a heating plate, and connection holes are provided on both sides of the test flow channel. A sealing gasket is provided on one side of each connection hole. An electronic component body is provided on the top of the test flow channel. A top frame is fixedly provided on the top of the fixed frame. An electric push rod is installed on the top of the top frame. A pressure plate is fixedly connected to the output end of the electric push rod. A square sealing gasket is provided at the contact position of the electronic component body in the test flow channel. Multiple turbulence structures are fixedly provided inside the test flow channel. The turbulence structures include, but are not limited to, one or more of the following: inclined fins, turbulence cylinders, turbulence square columns, and elliptical turbulence columns.

[0007] Preferably, the test bearing mechanism includes a docking assembly, which includes a first sliding rod and a first lead screw. The first sliding rod is fixedly disposed inside the fixed frame. The two ends of the first lead screw are connected to the inner wall of the fixed frame via bearings. A second motor is fixedly disposed on one side of the fixed frame. The output end of the second motor is fixedly connected to the first lead screw. The threads on the outer two sides of the first lead screw have opposite directions. Movable blocks are threadedly fitted on both outer sides of the first lead screw. The first sliding rod passes through the movable blocks and is slidably connected to them. A connecting plate is fixedly disposed on one side of the movable block. The connecting plate passes through the fixed frame and is slidably connected to it. A vertical plate is fixedly disposed on one side of the connecting plate. A connector is fixedly disposed on one side of the vertical plate. Square holes are provided on both sides of the fixed frame.

[0008] Preferably, two support plates are fixedly provided at the bottom of the table. The simulation control mechanism includes a pulse control component, which includes a side housing. The side housing is fixedly connected to one of the support plates. Two connecting rods are connected inside the side housing via bearings. One end of each connecting rod is connected to the side wall of the support plate via bearings. A second gear is fixedly sleeved on the outside of each connecting rod. A cam is fixedly sleeved on the outside of each connecting rod. A third motor is fixedly provided on one side of the side housing. A second lead screw is fixedly connected to the output end of the third motor. The second lead screw passes through the side housing and is connected to the side housing via bearings. A slider is threaded onto the outside of the second lead screw. Two second sliding rods are fixedly provided inside the side housing. The second sliding rods pass through the slider and slide with the slider. The connection includes toothed plates fixed on both sides of the slider, which mesh with a second gear. An elastic silicone tube is located inside the side housing, with a first fixing tube fixed at the bottom of the elastic silicone tube, penetrating the side housing. A second fixing tube is fixed at the top of the elastic silicone tube, also penetrating the side housing. Extrusion plates are located on both sides of the elastic silicone tube, contacting a cam. Multiple third slide rods are fixed inside the side housing, penetrating and slidably connected to the extrusion plates. Multiple fixing blocks are fixed inside the side housing, with the third slide rods penetrating and fixedly connected to the fixing blocks. Two springs are sleeved on the outside of the third slide rods, one end of which is fixedly connected to a fixing block, and the other end to an extrusion plate.

[0009] Preferably, the simulation control mechanism includes a gas-liquid mixing component, which includes a gas-liquid mixing cylinder. The gas-liquid mixing cylinder is fixedly connected to a table. An electromagnetic air intake valve is installed on one side of the gas-liquid mixing cylinder, and an air intake pipe is connected to one side of the electromagnetic air intake valve. The air intake pipe extends into the interior of the gas-liquid mixing cylinder, and the second fixed pipe is fixedly connected to the bottom of the gas-liquid mixing cylinder.

[0010] Preferably, the simulation control mechanism includes a temperature control component, which includes a heating cylinder. The heating cylinder is disposed on one side of the fixed frame, and a mounting block is fixedly provided on one side of the heating cylinder. The mounting block is fixedly connected to the fixed frame. A heating rod is fixedly installed inside the heating cylinder. A third fixing pipe is fixedly provided at the bottom of the heating cylinder and is fixedly connected to the gas-liquid mixing cylinder. A cylinder is fixedly provided on one side of the fixed frame, and a fourth fixing pipe is fixedly provided at the top of the heating cylinder and is fixedly connected to the cylinder. A fourth connecting pipe is fixedly connected to one of the connectors on one side of the cylinder.

[0011] Preferably, a drive pump is fixedly connected to the bottom of the first fixed pipe, a first connecting pipe is fixedly connected to the input end of the drive pump, a liquid storage tank is connected to one end of the first connecting pipe, a second connecting pipe is connected to one side of the liquid storage tank, a plate heat exchanger is connected to one end of the second connecting pipe, a third connecting pipe is installed on the top of the plate heat exchanger, and one end of the third connecting pipe is fixedly connected to another connector.

[0012] Preferably, the turbulence structure inside the test channel is an inclined fin, which is inclinedly disposed on the inner wall of the channel to guide the coolant to generate swirling flow.

[0013] Preferably, the turbulence structure inside the test channel is a plurality of turbulence cylinders parallel to the flow direction.

[0014] Preferably, the turbulence structure inside the test channel is a plurality of turbulence columns with rectangular cross-sections.

[0015] Preferably, the turbulence structure inside the test channel is a plurality of elliptical turbulence columns with an elliptical cross-section.

[0016] The embodiments of the present invention have the following advantages:

[0017] This invention creatively integrates pressure pulsation simulation, gas-liquid mixing simulation, rapid temperature shock simulation, and various turbulence structures into a single device. Through controller programming, it can continuously or alternately simulate various complex operating conditions that coolant may experience in actual applications, such as drastic temperature fluctuations, pressure pulsations, and gas-containing operation, within a single test cycle or between multiple cycles. This overcomes the limitations of traditional testing methods that can only perform single static or simple cyclic tests, resulting in more comprehensive and realistic test results.

[0018] Through its rotary multi-station design and automatic docking mechanism, the device can pre-install multiple test channels with different internal turbulence structures (such as oblique fins, turbulence columns, turbulence square columns, elliptical turbulence columns, etc.) or test samples of different materials. During the test, the device can automatically switch stations to achieve efficient testing of different channel designs or different component materials under the same or different simulated working conditions. This greatly shortens the product development cycle, reduces R&D costs, and realizes the leap from "single experiment" to "high-throughput testing". Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. 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 objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a front view of the overall structure provided by the present invention;

[0022] Figure 2 Rear view of the overall structure provided for this invention;

[0023] Figure 3 A cross-sectional view of the overall structure provided for this invention;

[0024] Figure 4 This is a side sectional view of the rotating drum provided by the present invention;

[0025] Figure 5 A cross-sectional view of the pulse control component provided by the present invention;

[0026] Figure 6 A perspective view of the pulse control component provided by the present invention;

[0027] Figure 7 Provided by the present invention Figure 2 Enlarged view of the structure of section A in the middle;

[0028] Figure 8 Provided by the present invention Figure 2 Enlarged view of the structure of section B in the middle;

[0029] Figure 9 Provided by the present invention Figure 3 Enlarged view of the structure of section C;

[0030] Figure 10 Provided by the present invention Figure 3 Enlarged view of the structure of section D in the middle;

[0031] Figure 11 A cross-sectional view of one embodiment of the test flow channel provided by the present invention, wherein inclined fins are provided inside;

[0032] Figure 12 This is a cross-sectional view of another embodiment of the test flow channel provided by the present invention, which has a turbulence-inducing cylinder inside;

[0033] Figure 13 This is a cross-sectional view of another embodiment of the test flow channel provided by the present invention, which has a turbulence-inducing square column inside.

[0034] Figure 14 This is a cross-sectional view of another embodiment of the test flow channel provided by the present invention, which has elliptical turbulence columns inside.

[0035] In the diagram: 1. Table; 2. Fixing frame; 3. Controller; 4. Support plate; 5. Drive pump; 6. Liquid storage tank; 7. First connecting pipe; 8. Second connecting pipe; 9. Plate heat exchanger; 10. First motor; 11. Second motor; 12. Third connecting pipe; 13. Connecting plate; 14. Vertical plate; 15. Connector; 16. Top frame; 17. Electric push rod; 18. Test flow channel; 19. Rotating cylinder; 20. Electronic component body; 21. Cylinder; 22. Fourth connecting pipe; 23. Side shell; 24. Gas-liquid mixing cylinder; 25. First fixing pipe; 26. Heating cylinder; 27. Pressure plate; 28. Gear ring; 29. ​​Moving block; 30. Rotating rod; 31. First gear; 32. First sliding rod 33. First lead screw; 34. Connecting block; 35. Third motor; 36. Second lead screw; 37. Second slide rod; 38. Elastic silicone tube; 39. Slider; 40. Gear plate; 41. Connecting rod; 42. Second gear; 43. Cam; 44. Third slide rod; 45. Extrusion plate; 46. Spring; 47. Fixing block; 48. Second fixing tube; 49. Electromagnetic intake valve; 50. Intake pipe; 51. Third fixing tube; 52. Fourth fixing tube; 53. Mounting block; 54. Heating rod; 55. Square sealing gasket; 56. Heating plate; 57. Slanted fin; 58. Connecting hole; 59. Square hole; 60. Ring; 61. Turbulence cylinder; 62. Turbulence square column; 63. Elliptical turbulence column. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0037] See attached document Figure 1 -Appendix Figure 14 The present invention provides a liquid-cooled compatibility testing device for electronic components with multi-condition simulation, including a table 1, a fixed frame 2 fixedly provided on the top of the table 1, rings 60 fixedly provided on both inner side walls of the fixed frame 2, a test bearing mechanism provided inside the fixed frame 2, and a simulation control mechanism provided on one side of the table 1.

[0038] The test support mechanism includes a rotating cylinder 19, which is sleeved on the outside of the two rings 60 and connected to the rings 60 via bearings. Two gear rings 28 are fixedly installed inside the rotating cylinder 19. A rotating rod 30 is connected to the inside of the fixed frame 2 via bearings. A first motor 10 is fixedly installed on one side of the fixed frame 2, and the output end of the first motor 10 is fixedly connected to the rotating rod 30. Two first gears 31 are fixedly sleeved on the outside of the rotating rod 30, and the first gears 31 mesh with the gear rings 28. Multiple test support components are provided outside the rotating cylinder 19. Each support component includes a test flow channel 18, and multiple connecting blocks 34 are fixedly installed on one side of the test flow channel 18. The connecting blocks 34 are connected to the rotating cylinder 19. The test flow channel 18 is fixedly connected, with a heating plate 56 installed inside. Connection holes 58 are provided on both sides of the test flow channel 18, and a sealing gasket is provided on one side of each connection hole 58. An electronic component body 20 is provided at the top of the test flow channel 18. A top frame 16 is fixedly provided at the top of the fixing frame 2, and an electric push rod 17 is installed at the top of the top frame 16. A pressure plate 27 is fixedly connected to the output end of the electric push rod 17. A square sealing gasket 55 is provided at the contact position between the electronic component body 20 and the test flow channel 18. Multiple flow-disrupting structures are fixedly provided inside the test flow channel 18, including but not limited to one or more of the following: inclined fins 57, flow-disrupting cylinders 61, flow-disrupting square pillars 62, and elliptical flow-disrupting pillars 63.

[0039] In this embodiment, the first motor 10 is started, and the first motor 10 drives the rotating rod 30 to rotate. The first gear 31 on the rotating rod 30 rotates accordingly. Since the first gear 31 meshes with the gear ring 28 fixed inside the rotating cylinder 19, the rotating cylinder 19 is driven to rotate under the support of the ring 60, and the target test channel 18 is rotated to the test position directly below the top frame 16. The operator places the electronic component body 20 to be tested at the opening at the top of the test channel 18.

[0040] To achieve the docking objective, the device employs the following technical solution: The test bearing mechanism includes a docking assembly, which comprises a first sliding rod 32 and a first lead screw 33. The first sliding rod 32 is fixedly installed inside the fixed frame 2. The two ends of the first lead screw 33 are connected to the inner wall of the fixed frame 2 via bearings. A second motor 11 is fixedly installed on one side of the fixed frame 2. The output end of the second motor 11 is fixedly connected to the first lead screw 33. The threads on both outer sides of the first lead screw 33 have opposite directions. Moving blocks 29 are threaded on both outer sides of the first lead screw 33. The first sliding rod 32 passes through the moving blocks 29 and is slidably connected to them. A connecting plate 13 is fixedly installed on one side of the moving blocks 29. The connecting plate 13 passes through the fixed frame 2 and is slidably connected to it. A vertical plate 14 is fixedly installed on one side of the connecting plate 13. A connector 15 is fixedly installed on one side of the vertical plate 14. Square holes 59 are provided on both sides of the fixed frame 2.

[0041] Start the second motor 11, which drives the first lead screw 33 to rotate. Since the two threads of the first lead screw 33 rotate in opposite directions, the two moving blocks 29 connected to it move synchronously towards each other under the guidance of the first slide rod 32. The moving blocks 29 drive the vertical plate 14 and the connector 15 to move through the connecting plate 13. The two connectors 15 pass through the square holes 59 on both sides of the fixed frame 2 and are precisely and stably inserted into the corresponding connecting holes 58 on both sides of the test flow channel 18. The sealing connection of the liquid circuit is achieved through the sealing gasket inside the connecting hole 58. Thus, an independent test circuit containing the component under test and a specific flow channel is ready.

[0042] To achieve the purpose of pulse control, this device adopts the following technical solution: Two support plates 4 are fixedly installed at the bottom of the table 1. The simulation control mechanism includes a pulse control component, which includes a side housing 23. The side housing 23 is fixedly connected to one of the support plates 4. Two connecting rods 41 are connected inside the side housing 23 via bearings. One end of each connecting rod 41 is connected to the side wall of the support plate 4 via bearings. A second gear 42 is fixedly sleeved on the outside of each connecting rod 41. A cam 43 is fixedly sleeved on the outside of each connecting rod 41. A third motor 35 is fixedly installed on one side of the side housing 23. A second lead screw 36 is fixedly connected to the output end of the third motor 35. The second lead screw 36 passes through the side housing 23 and is connected to the side housing 23 via bearings. A slider 39 is threaded onto the outside of the second lead screw 36. Two second sliding rods 37 are fixedly installed inside the side housing 23. The second sliding rods 37 pass through the slider 39 and are connected to the slider... The slider 39 is slidably connected. Toothed plates 40 are fixed on both sides of the slider 39, and the toothed plates 40 mesh with the second gear 42. An elastic silicone tube 38 is provided inside the side housing 23. A first fixing tube 25 is fixed at the bottom of the elastic silicone tube 38, penetrating the side housing 23. A second fixing tube 48 is fixed at the top of the elastic silicone tube 38, penetrating the side housing 23. Extrusion plates 45 are provided on both sides of the elastic silicone tube 38, contacting the cam 43. Multiple third slide rods 44 are fixed inside the side housing 23, penetrating the extrusion plates 45 and slidably connected to them. Multiple fixing blocks 47 are fixed inside the side housing 23, penetrating the fixing blocks 47 and fixedly connected to them. Two springs 46 are sleeved on the outside of the third slide rods 44. One end of each spring 46 is fixedly connected to a fixing block 47, and the other end is fixedly connected to the extrusion plate 45.

[0043] The third motor 35 drives the second lead screw 36 to rotate, causing the slider 39 to move along the second slide bar 37. The toothed plates 40 on both sides of the slider 39 move accordingly, driving the two second gears 42 to rotate synchronously in opposite directions. The second gears 42 drive the cam 43 to rotate through the connecting rod 41. The eccentric profile of the cam 43 pushes the extrusion plates 45 on both sides to move towards each other along the third slide bar 44, extruding the elastic silicone tube 38 in the middle, causing its volume to decrease instantaneously, thereby generating a pressure peak in the flowing coolant. When the cam 43 continues to rotate to the return section, under the action of the restoring force of the spring 46, the extrusion plate 45 maintains contact with the profile of the cam 43 and moves in the opposite direction, releasing the extrusion on the silicone tube 38, and the pressure drops. By controlling the speed and direction mode of the third motor 35, pressure pulsations of different frequencies and waveforms can be generated.

[0044] To achieve gas-liquid mixing, the device employs the following technical solution: the simulation control mechanism includes a gas-liquid mixing component, which includes a gas-liquid mixing cylinder 24. The gas-liquid mixing cylinder 24 is fixedly connected to the table 1. An electromagnetic air inlet valve 49 is installed on one side of the gas-liquid mixing cylinder 24, and an air inlet pipe 50 is connected to one side of the electromagnetic air inlet valve 49. The air inlet pipe 50 extends into the interior of the gas-liquid mixing cylinder 24, and the second fixed pipe 48 is fixedly connected to the bottom of the gas-liquid mixing cylinder 24.

[0045] When the electromagnetic air intake valve 49 opens, external air (or other gas) is injected into the liquid flow of the gas-liquid mixing cylinder 24 through the air intake pipe 50, forming a microbubble mixture, which then enters the subsequent stages with the liquid flow.

[0046] To achieve the purpose of rapid temperature shock simulation, this device adopts the following technical solution: The simulation control mechanism includes a temperature control component, which includes a heating cylinder 26. The heating cylinder 26 is located on one side of the fixed frame 2. A mounting block 53 is fixedly installed on one side of the heating cylinder 26 and is fixedly connected to the fixed frame 2. A heating rod 54 is fixedly installed inside the heating cylinder 26. A third fixing pipe 51 is fixedly installed at the bottom of the heating cylinder 26 and is fixedly connected to the gas-liquid mixing cylinder 24. A cylinder 21 is fixedly installed on one side of the fixed frame 2. A fourth fixing pipe 52 is fixedly installed at the top of the heating cylinder 26 and is fixedly connected to the cylinder 21. A fourth connecting pipe 22 is fixedly connected to one of the connectors 15.

[0047] The controller 3 instantly adjusts the power of the heating rod 54 in the temperature control component. For example, if the simulated power suddenly increases, the power of the heating rod 54 is instantly and significantly increased to rapidly heat the coolant flowing through the heating cylinder 26. Then, the high-temperature coolant is sent to the inlet of the test flow channel 18 through the fourth fixed pipe 52, the cylinder 21 and the fourth connecting pipe 22 to form a thermal shock to the electronic component body 20 and its contact materials.

[0048] To achieve the purpose of coolant circulation, the device adopts the following technical solution: a drive pump 5 is fixedly connected to the bottom of the first fixed pipe 25, a first connecting pipe 7 is fixedly connected to the input end of the drive pump 5, a liquid storage tank 6 is connected to one end of the first connecting pipe 7, a second connecting pipe 8 is connected to one side of the liquid storage tank 6, a plate heat exchanger 9 is connected to one end of the second connecting pipe 8, a third connecting pipe 12 is installed on the top of the plate heat exchanger 9, and one end of the third connecting pipe 12 is fixedly connected to another connector 15.

[0049] Start the drive pump 5, and the coolant is pumped out from the storage tank 6 through the first connecting pipe 7 and enters the main circulation. The coolant enters the test flow channel 18 through the fourth connecting pipe 22 and the liquid inlet side connector 15, flows out from the liquid outlet side connector 15, and enters the plate heat exchanger 9 through the third connecting pipe 12. In the plate heat exchanger 9, the high temperature coolant is cooled to the set base temperature and finally returns to the storage tank 6, completing one test cycle.

[0050] To achieve the purpose of pressing, the device adopts the following technical solution: a top frame 16 is fixedly provided on the top of the fixed frame 2, an electric push rod 17 is installed on the top of the top frame 16, and a pressure plate 27 is fixedly connected to the output end of the electric push rod 17; when the electric push rod 17 is activated, the pressure plate 27 is pushed down, and the electronic component body 20 is pressed smoothly and firmly onto the test flow channel 18, and a seal is achieved through the square sealing gasket 55 between them, simulating the installation state of a real cold plate;

[0051] To achieve the control objective, the device employs the following technical solution: a controller 3 is installed on one side of the mounting bracket 2, and the controller 3 is a Siemens S7-1215C DC / DC / DC.

[0052] In a preferred embodiment of the present invention, the test channel 18 may be fitted with different shaped turbulence structures according to test requirements.

[0053] like Figure 11 As shown, the turbulence structure consists of multiple inclined fins 57 with adjustable tilt angles, used to simulate the scenario of guiding coolant to generate swirling flow and enhance heat transfer within the cold plate.

[0054] like Figure 12As shown, the turbulence structure can be replaced by multiple turbulence cylinders 61 arranged parallel to the flow direction to simulate the flow state through the column array.

[0055] like Figure 13 As shown, the turbulence structure can be multiple turbulence columns 62, whose rectangular cross-sections can generate different wake and vortex characteristics.

[0056] like Figure 14 As shown, the turbulence structure can also be multiple elliptical turbulence columns 63, whose streamlined design can be used to study heat transfer performance under low flow resistance. Through the multi-station design of the rotary drum 19, test channels 18 with different internal turbulence structures can be pre-installed and automatically switched in one test process, efficiently comparing the impact of different turbulence designs on compatibility.

[0057] The usage process of this invention is as follows:

[0058] Preparation before testing:

[0059] Based on testing requirements, various pre-fabricated test channels 18 (such as...) are used. Figure 11-14 As shown, different turbulence structures such as inclined fins 57, turbulence cylinders 61, turbulence square columns 62, and elliptical turbulence columns 63 can be set inside. Select the appropriate model and fix it on the work station outside the rotating drum 19 through the connecting block 34.

[0060] Add the coolant to be tested to the storage tank 6;

[0061] The controller 3 is used to set a complete test program, including: base temperature, temperature shock curve (amplitude, frequency), pressure pulsation parameters (frequency, amplitude), intermittent air intake mode (cycle, duration), test sequence and duration of each station, etc.

[0062] Testing process (taking one workstation as an example):

[0063] Station selection and sample installation: Controller 3 starts the first motor 10, which drives the rotating rod 30 to rotate. The first gear 31 on the rotating rod 30 rotates accordingly. Since the first gear 31 meshes with the gear ring 28 fixed inside the rotating cylinder 19, the rotating cylinder 19 is driven to rotate under the support of the ring 60, rotating the target test channel 18 to the test position directly below the top frame 16. The operator places the electronic component body 20 to be tested at the opening at the top of the test channel 18. Then, controller 3 starts the electric push rod 17 to push the pressure plate 27 down, pressing the electronic component body 20 smoothly and firmly onto the test channel 18, and sealing it through the square sealing gasket 55 between them, simulating the installation state of a real cold plate.

[0064] Automatic pipeline docking: Controller 3 starts the second motor 11, which drives the first lead screw 33 to rotate. Since the two threads of the first lead screw 33 rotate in opposite directions, the two moving blocks 29 connected to it move synchronously towards each other under the guidance of the first slide rod 32. The moving blocks 29 drive the vertical plate 14 and the connector 15 to move through the connecting plate 13. The two connectors 15 pass through the square holes 59 on both sides of the fixed frame 2 and are precisely and stably inserted into the corresponding connecting holes 58 on both sides of the test flow channel 18. The sealing connection of the liquid circuit is achieved through the sealing gasket inside the connecting hole 58. Thus, an independent test circuit containing the component under test and a specific flow channel is ready.

[0065] Start the basic cycle and operating condition simulation: Controller 3 starts the drive pump 5, and coolant is pumped out from the storage tank 6 through the first connecting pipe 7 and enters the main cycle;

[0066] Pressure pulsation simulation: When the program needs to simulate pressure pulsation, the controller 3 starts the third motor 35 of the pulsation control component according to the set parameters. The third motor 35 drives the second lead screw 36 to rotate, which drives the slider 39 to move along the second slide bar 37. The toothed plates 40 on both sides of the slider 39 move accordingly, driving the two second gears 42 to rotate synchronously in opposite directions. The second gears 42 drive the cam 43 to rotate through the connecting rod 41. The eccentric profile of the cam 43 pushes the extrusion plates 45 on both sides to move towards each other along the third slide bar 44, extruding the elastic silicone tube 38 in the middle, causing its volume to decrease instantaneously, thereby generating a pressure peak in the flowing coolant. When the cam 43 continues to rotate to the return section, under the action of the restoring force of the spring 46, the extrusion plate 45 keeps in contact with the profile of the cam 43 and moves in the opposite direction, releasing the extrusion on the silicone tube 38, and the pressure drops. By controlling the speed and direction mode of the third motor 35, pressure pulsations of different frequencies and waveforms can be generated.

[0067] Gas-liquid mixing simulation: When the program needs to simulate gas-containing conditions, the controller 3 sends a brief opening signal to the electromagnetic air intake valve 49. The electromagnetic air intake valve 49 opens, and external air (or other gases) is injected into the liquid flow of the gas-liquid mixing cylinder 24 through the air intake pipe 50 to form a microbubble mixture, which then enters the subsequent stages with the liquid flow.

[0068] Rapid temperature shock simulation: When the program needs to simulate drastic temperature changes, the controller 3 instantly adjusts the power of the heating rod 54 in the temperature control component. For example, if the simulated power suddenly increases, the power of the heating rod 54 is instantly and significantly increased to rapidly heat the coolant flowing through the heating cylinder 26. Then, the high-temperature coolant is sent to the inlet of the test flow channel 18 through the fourth fixed pipe 52, the cylinder 21 and the fourth connecting pipe 22 to form a thermal shock to the electronic component body 20 and its contact materials.

[0069] Core compatibility test: The coolant, which has completed multi-condition simulation, enters the test flow channel 18 through the fourth connecting pipe 22 and the liquid inlet side connector 15. In the flow channel, the coolant flows through a specific turbulence structure (such as inclined fins 57) at a set flow rate, directly scouring the inner wall of the flow channel that contacts the heat dissipation substrate of the electronic component body 20, simulating the flow and heat exchange state in a real cold plate. At the same time, the heating plate 56 at the bottom of the test flow channel 18 can be activated to accurately simulate the actual heat generation power of the electronic component body 20, and a local high temperature zone can be set to simulate and study the "hot spot" effect. After the coolant carries away the heat, the temperature rises and it flows out from the liquid outlet side connector 15, enters the plate heat exchanger 9 through the third connecting pipe 12. In the plate heat exchanger 9, the high temperature coolant is cooled to the set base temperature and finally returns to the storage tank 6, completing one test cycle.

[0070] Online monitoring and data acquisition: Throughout the testing process, an external high-precision insulation resistance tester can be connected and led out from the 20 pins of the electronic component body to monitor the changes in key parameters such as insulation resistance online, so as to achieve simultaneous evaluation of material compatibility and electrical compatibility.

[0071] Station switching and continuous testing: After the predetermined test program of a test channel 18 is completed, the controller 3 controls the docking component to disengage the connector 15 from the test channel 18. Then, the first motor 10 is started again to drive the rotating drum 19 to rotate and rotate the next test channel 18 containing samples with different turbulence structures or different materials to the test position. The above steps are repeated to start a new round of testing. This design realizes efficient and automated sequential testing under different test conditions, which greatly improves the testing efficiency.

[0072] Through the aforementioned integrated design and workflow, this invention integrates the complex compatibility testing of operating conditions, which previously required multiple devices and numerous experiments, into a single automated device. This not only significantly improves the fidelity and efficiency of the test but also provides a powerful and convenient R&D tool for the reliability design and material selection of liquid cooling systems for electronic components.

[0073] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A liquid-cooled compatibility testing device for electronic components with multi-condition simulation, comprising a table (1), characterized in that: The table (1) is fixedly provided with a fixed frame (2) on the top. Both sides of the inner side wall of the fixed frame (2) are fixedly provided with rings (60). The fixed frame (2) is provided with a test bearing mechanism. A controller (3) is installed on one side of the fixed frame (2). A simulation control mechanism is provided on one side of the table (1). The test support mechanism includes a rotating cylinder (19), which is sleeved on the outside of two circular rings (60) and connected to the circular rings (60) through bearings. Two toothed rings (28) are fixedly installed inside the rotating cylinder (19). A rotating rod (30) is connected to the inside of the fixed frame (2) through bearings. A first motor (10) is fixedly installed on one side of the fixed frame (2). The output end of the first motor (10) is fixedly connected to the rotating rod (30). Two first gears (31) are fixedly sleeved on the outside of the rotating rod (30). The first gears (31) mesh with the toothed rings (28). Multiple test support components are provided outside the rotating cylinder (19). Each support component includes a test flow channel (18). Multiple connecting blocks (34) are fixedly installed on one side of the test flow channel (18). The connecting blocks (34) are connected to the rotating cylinder (19). The test flow channel (18) is fixedly connected, and a heating plate (56) is installed inside the test flow channel (18). Connection holes (58) are provided on both sides of the test flow channel (18). A sealing gasket is provided on one side of the connection hole (58). An electronic component body (20) is provided on the top of the test flow channel (18). A top frame (16) is fixedly provided on the top of the fixed frame (2). An electric push rod (17) is installed on the top of the top frame (16). A pressure plate (27) is fixedly connected to the output end of the electric push rod (17). A square sealing gasket (55) is provided at the contact position of the electronic component body (20) in the test flow channel (18). Multiple turbulence structures are fixedly provided inside the test flow channel (18). The turbulence structures include, but are not limited to, one or more of the following: oblique fins (57), turbulence cylinders (61), turbulence square columns (62), and elliptical turbulence columns (63).

2. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 1, characterized in that: The test support mechanism includes a docking assembly, which includes a first slide rod (32) and a first lead screw (33). The first slide rod (32) is fixed inside the fixed frame (2). The two ends of the first lead screw (33) are connected to the inner wall of the fixed frame (2) by bearings. A second motor (11) is fixed on one side of the fixed frame (2). The output end of the second motor (11) is fixedly connected to the first lead screw (33). The threads on both sides of the first lead screw (33) are opposite. Movable blocks (29) are threaded on both sides of the first lead screw (33). The first slide rod (32) passes through the movable block (29) and is slidably connected to the movable block (29). A connecting plate (13) is fixed on one side of the movable block (29). The connecting plate (13) passes through the fixed frame (2) and is slidably connected to the fixed frame (2). A vertical plate (14) is fixed on one side of the connecting plate (13). A connector (15) is fixed on one side of the vertical plate (14). Square holes (59) are opened on both sides of the fixed frame (2).

3. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 2, characterized in that: The table (1) has two support plates (4) fixedly installed at its bottom. The simulation control mechanism includes a pulse control component, which includes a side housing (23). The side housing (23) is fixedly connected to one of the support plates (4). Inside the side housing (23), two connecting rods (41) are connected by bearings. One end of each connecting rod (41) is connected to the side wall of the support plate (4) by bearings. A second gear (42) is fixedly fitted on the outside of each connecting rod (41). A cam is fixedly fitted on the outside of each connecting rod (41). (43) A third motor (35) is fixedly provided on one side of the side housing (23). A second lead screw (36) is fixedly connected to the output end of the third motor (35). The second lead screw (36) passes through the side housing (23) and is connected to the side housing (23) through a bearing. A slider (39) is threadedly sleeved on the outside of the second lead screw (36). Two second slide rods (37) are fixedly provided inside the side housing (23). The second slide rods (37) pass through the slider (39) and are slidably connected to the slider (39). Both sides of the slider (39) are fixedly provided with A toothed plate (40) meshes with a second gear (42). An elastic silicone tube (38) is provided inside the side housing (23). A first fixing tube (25) is fixed at the bottom of the elastic silicone tube (38) and penetrates the side housing (23). A second fixing tube (48) is fixed at the top of the elastic silicone tube (38) and penetrates the side housing (23). Extrusion plates (45) are provided on both sides of the elastic silicone tube (38) and are connected to a cam (43). The side housing (23) is fixedly provided with a plurality of third slide rods (44), the third slide rods (44) pass through the extrusion plate (45) and are slidably connected to the extrusion plate (45), the side housing (23) is fixedly provided with a plurality of fixing blocks (47), the third slide rods (44) pass through the fixing blocks (47) and are fixedly connected to the fixing blocks (47), and two springs (46) are sleeved on the outside of the third slide rods (44), one end of the springs (46) is fixedly connected to the fixing blocks (47), and the other end of the springs (46) is fixedly connected to the extrusion plate (45).

4. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 3, characterized in that: The simulation control mechanism includes a gas-liquid mixing component, which includes a gas-liquid mixing cylinder (24). The gas-liquid mixing cylinder (24) is fixedly connected to the table (1). An electromagnetic air intake valve (49) is installed on one side of the gas-liquid mixing cylinder (24). An air intake pipe (50) is connected to one side of the electromagnetic air intake valve (49). The air intake pipe (50) extends into the interior of the gas-liquid mixing cylinder (24). The second fixed pipe (48) is fixedly connected to the bottom of the gas-liquid mixing cylinder (24).

5. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 4, characterized in that: The simulation control mechanism includes a temperature control component, which includes a heating cylinder (26). The heating cylinder (26) is located on one side of the fixed frame (2). An installation block (53) is fixedly provided on one side of the heating cylinder (26). The installation block (53) is fixedly connected to the fixed frame (2). A heating rod (54) is fixedly installed inside the heating cylinder (26). A third fixed pipe (51) is fixedly provided at the bottom of the heating cylinder (26). The third fixed pipe (51) is fixedly connected to the gas-liquid mixing cylinder (24). A cylinder (21) is fixedly provided on one side of the fixed frame (2). A fourth fixed pipe (52) is fixedly provided at the top of the heating cylinder (26). The fourth fixed pipe (52) is fixedly connected to the cylinder (21). A fourth connecting pipe (22) is fixedly connected to one of the connectors (15).

6. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 5, characterized in that: A drive pump (5) is fixedly connected to the bottom of the first fixed pipe (25). A first connecting pipe (7) is fixedly connected to the input end of the drive pump (5). A liquid storage tank (6) is connected to one end of the first connecting pipe (7). A second connecting pipe (8) is connected to one side of the liquid storage tank (6). A plate heat exchanger (9) is connected to one end of the second connecting pipe (8). A third connecting pipe (12) is installed on the top of the plate heat exchanger (9). One end of the third connecting pipe (12) is fixedly connected to another connector (15).

7. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 1, characterized in that: The turbulence structure inside the test channel (18) is an oblique fin (57), which is obliquely arranged on the inner wall of the channel to guide the coolant to generate swirling flow.

8. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 1, characterized in that: The test channel (18) is equipped with a turbulence structure consisting of multiple turbulence cylinders (61) parallel to the flow direction.

9. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 1, characterized in that: The test flow channel (18) is equipped with a turbulence structure consisting of multiple rectangular turbulence columns (62).

10. The liquid-cooled compatibility testing device for electronic components with multi-condition simulation according to claim 1, characterized in that: The test flow channel (18) is equipped with a turbulence structure consisting of multiple elliptical turbulence columns (63) with elliptical cross-sections.

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