Liquid cooling plate flow resistance testing device and flow resistance testing method thereof

Abstract

The application discloses a liquid cooling plate flow resistance testing device and a testing method thereof, wherein the liquid cooling plate flow resistance testing device comprises a fixed mounting base, a fixed support frame is arranged on the fixed mounting base, an outer frame is further arranged on the fixed support frame, a receiving space for placing a liquid cooling plate is reserved between the outer frame and the fixed support frame, a plurality of positioning mechanisms capable of telescopic displacement relative to the liquid cooling plate are arranged on the outer frame, a flow resistance testing mechanism is further arranged on one side of the fixed mounting base, and a cold liquid input end and a cold liquid output end of a liquid cooling passage in the liquid cooling plate are respectively connected to a testing liquid input end and a testing liquid output end of the flow resistance testing mechanism. The liquid cooling plate flow resistance testing device and the testing method thereof can limit, fix and clamp the device, avoid shaking and deviation of the device during the testing process, cause inaccurate testing results, can disassemble and replace the connecting plug according to different needs, improve testing efficiency and heat dissipation, and improve the practical effect of the device.

Description

Technical Field

[0001] This invention relates to the technical field of flow resistance testing during the research and development stage of liquid cooling plates, specifically a method for efficiently testing the flow resistance of liquid cooling plates. Background Technology

[0002] Today, specialized computers are developing towards high integration, such as cloud servers and central computers. As functionality increases within a unit volume, power consumption inevitably rises as well. Liquid forced flow cooling technology is a preferred solution to resolve the contradiction between heat dissipation and high-density integration. Liquid cooling is divided into chassis-level and board-level cooling. Chassis-level liquid cooling refers to coolant flowing through internal pipes on the walls of electronic equipment chassis. The heat from high-power circuit boards is conducted to the chassis walls through their cold plates, and the fluid absorbs heat from the chassis walls, carrying the heat generated by the circuit boards to the outside of the chassis. Board-level cooling refers to coolant flowing directly into the cold plates of printed circuit boards through chassis pipes and connectors, directly carrying the heat transferred from high-power devices to the cold plates to the outside of the chassis. However, most existing devices still have some shortcomings. This invention proposes a new solution to address these deficiencies.

[0003] Chinese Patent Publication No. CN105699048B discloses a flow resistance testing device and method for water-cooled radiators. The flow resistance testing device includes a power system, a flow control system, a temperature control system, and a testing platform. The power system includes a high-level water tank, a circulating water pool, pipelines, and a water pump. The pipelines include a water supply pipeline, an overflow pipeline, and a testing pipeline. The water level in the high-level water tank is adjusted through the water supply pipeline and the overflow pipeline to ensure water pressure stability. The flow rate is controlled by installing regulating valves, pressure gauges, and flow meters in the pipelines. The temperature control system regulates the water temperature to ensure stable circulating water medium temperature, thereby meeting the high-precision testing requirements for consistency of products in the same batch.

[0004] The existing technical solutions mentioned above have the following drawbacks: the device is prone to shaking and shifting during the testing process, resulting in inaccurate test results; the heat dissipation may be insufficient due to the different requirements of the cold plates; and the practical effect is not good. Therefore, we propose a high-efficiency method for testing the flow resistance of liquid cooling plates in order to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a liquid cooling plate flow resistance testing device and its flow resistance testing method, so as to solve the problems mentioned in the background art, which are that the device is prone to shaking and shifting during the testing process, resulting in inaccurate test results, insufficient heat dissipation due to the needs of different cold plates, and poor practical effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a liquid-cooled plate flow resistance testing device, comprising: a fixed mounting base, a fixed support frame disposed on the fixed mounting base, an outer frame disposed on the fixed support frame, a receiving space reserved between the outer frame and the fixed support frame for placing the liquid-cooled plate, a plurality of positioning mechanisms capable of telescoping relative to the liquid-cooled plate disposed on the outer frame, and a flow resistance testing mechanism disposed on one side of the fixed mounting base, wherein the test liquid input end and the test liquid output end of the flow resistance testing mechanism are respectively connected to the cold liquid input end and the cold liquid output end of the liquid cooling passage in the liquid-cooled plate.

[0007] In a preferred embodiment of the present invention, the liquid cooling plate includes a substrate body, and cover plate bodies are respectively provided on both sides of the substrate body. A solder plate body is also provided on the outer side of the cover plate body. The substrate body includes an outer plate and an inner plate embedded opposite to the outer plate. A rotary or disc-shaped flow cavity is reserved between the outer plate and the inner plate. The cover plate body is attached to both sides of the substrate body and locks the flow cavity to form the liquid cooling passage.

[0008] In a preferred embodiment of the present invention, the outer frame adopts a semi-frame structure, and the positioning mechanism includes a top positioning component disposed on the top of the semi-frame mechanism corresponding to the liquid cooling plate to be tested, and a side positioning component disposed on the side of the semi-frame mechanism corresponding to the liquid cooling plate to be tested.

[0009] In a preferred embodiment of the present invention, the top positioning component includes an electrically operated telescopic rod disposed on the top of the outer frame, a pressure plate driven onto the electrically operated telescopic rod, and a third rubber anti-slip pad disposed on the pressing side of the pressure plate; or / and, the side positioning component includes a clamping component disposed opposite to it, the clamping component including a movable clamping rod, one end of the movable clamping rod passing through a movable guide rod on the outer frame, the other end of the movable clamping rod being disposed with the side pressure plate, a second rubber anti-slip pad disposed on the pressing side of the side pressure plate, and the movable clamping rod being drivenly connected to the outer frame via an adjusting rod.

[0010] In a preferred embodiment of the present invention, the movable clamping rod adopts a π-shaped structure, and the movable guide rod is vertically arranged on the side pressure plate.

[0011] In a preferred embodiment of the present invention, the liquid cooling plate can be placed between oppositely arranged clamping components, and the end of the substrate body is provided with a detachable plug body that can be connected to the cold liquid inlet and cold liquid outlet; the cold liquid inlet and cold liquid outlet are respectively connected to the water storage tank of the flow resistance testing mechanism through the detachable plug body, connecting hose and regulating valve.

[0012] In a preferred embodiment of the present invention, a movable protrusion capable of opening and closing relative to each other is provided in the coolant inlet and coolant outlet. The large end of the movable protrusion is movably embedded in the substrate body, and an elastic element is provided between the large end and the substrate body. The detachable plug body and the movable protrusion are connected by an elastic snap-fit ​​docking structure.

[0013] Specifically, the insertion limiting end of the movable protrusion is driven to open and close within the coolant inlet and coolant outlet by the elastic element, and can be inserted into the corresponding detachable plug body; and the movable protrusion forms an elastic telescopic structure on the inner side of the substrate body by the elastic element.

[0014] In a preferred embodiment of the present invention, the cold liquid inlet is connected to the water storage tank via a connecting hose, an inlet pipe, and a circulating water pump, and the cold liquid outlet is connected to the water storage tank via another connecting hose and an outlet pipe.

[0015] Specifically, a first sealing element is provided on the side of the detachable plug body that is in contact with the base plate body.

[0016] More specifically, the water tank is equipped with a digital control display screen, several function buttons, and a second seal is provided at the connection between the temperature control board connecting hose and the water tank.

[0017] In a preferred embodiment of the present invention, a flow resistance testing method for a liquid-cooled plate flow resistance testing device includes the following steps:

[0018] Step 1: First, connect the symmetrically arranged cover plate body to the substrate body, and then connect the symmetrically arranged solder plate body to the cover plate body. At this time, place the entire substrate body on the first rubber anti-slip pad.

[0019] Step 2: Use the clamping assembly to limit and clamp the front and rear ends of the substrate body, and open the electric telescopic rod to drive the third rubber anti-slip pad to limit and fix the upper end of the substrate body, so as to ensure the overall stability of the substrate body and avoid shaking.

[0020] Step 3: Connect the detachable plug body to the flow cavity opened inside the base plate body according to different needs;

[0021] Step four: Connect the connecting hose that is connected to the detachable plug body to the water storage tank, adjust the temperature of the liquid inside the water storage tank, and then turn on the circulating water pump to allow the liquid to enter the base plate body from the inlet pipe along the connecting hose, and then discharge it back into the water storage tank from the outlet pipe. Test the flow resistance in the liquid cooling plate by circulating the liquid.

[0022] In a preferred embodiment of the present invention, in step four, the data displayed on the CNC display screen by adjusting the function keys can be used to control the temperature of the liquid inside the water tank by using the temperature control board. At this time, turning on the circulating water pump can bring the liquid from the inlet pipe into the substrate body through the connecting hose, and then after the circulation test, it is discharged back into the water tank from the outlet pipe to test the flow resistance in the liquid cooling plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention discloses a liquid-cooled plate flow resistance testing device and its flow resistance testing method. The liquid-cooled plate flow resistance testing device can limit and fix the device, avoiding the device from shaking or shifting during the test, which would cause inaccurate test results. The connecting plug can be disassembled and replaced according to different needs, improving testing efficiency and heat dissipation, and enhancing the practical effect of the device.

[0025] This invention achieves cold plate clamping and disassembly through a drive connection between a movable clamping rod and an outer frame. A flexible interlocking structure between a detachable plug and a movable protrusion enables rapid assembly and disassembly of different plugs. The stable fixing structure and convenient assembly / disassembly settings make flow resistance testing more efficient and shorten the testing cycle. Simultaneously, the introduction of detachable plugs significantly reduces the number of cold plate samples required, thereby reducing sample production costs. Attached Figure Description

[0026] Figure 1 This is a frontal cross-sectional view of the present invention;

[0027] Figure 2 This is a side cross-sectional view of the connection between the water storage tank and the temperature control board of the present invention.

[0028] Figure 3 This is a side cross-sectional view of the connection between the first rubber anti-slip pad and the substrate body of the present invention.

[0029] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0030] Figure 5 This is a top cross-sectional view of the connection between the substrate body and the fixing handle of the present invention.

[0031] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0032] Figure 7 This is a schematic diagram of the overall structure connecting the substrate body and the cover plate body of the present invention;

[0033] Figure 8This is a schematic flowchart of the method for testing the flow resistance of a liquid cooling plate according to the present invention.

[0034] In the diagram: 1. Fixed mounting base; 2. Fixed support frame; 3. First rubber anti-slip pad; 4. Outer frame; 5. Clamping assembly; 501. Adjusting rod; 502. Built-in bearing; 503. Movable handle; 504. Movable clamping rod; 505. Second rubber anti-slip pad; 6. Base plate body; 7. Fixed handle; 8. Brazing board body; 9. Cover plate body; 10. Electric telescopic rod; 11. Third rubber anti-slip pad; 12. Flow chamber; 13. Removable plug body; 14. First sealing element; 15. Movable protrusion; 16. Limiting spring; 17. Connecting hose; 18. Adjusting valve; 19. Second sealing element; 20. Water storage tank; 21. Digital control display screen; 22. Function buttons; 23. Temperature control board; 24. Inlet water pipe; 25. Circulating water pump; 26. Outlet water pipe; 27. Filter head. Detailed Implementation

[0035] 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, and 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.

[0036] Example 1

[0037] like Figures 1-8 As shown, a liquid-cooled plate flow resistance testing device includes a fixed support frame 2 installed on the upper left surface of a fixed mounting base 1, and a first rubber anti-slip pad 3 provided on the upper surface of the fixed support frame 2. An outer frame 4 is provided at the upper end of the fixed support frame 2, and clamping components 5 are provided at both the front and rear ends of the outer frame 4. An electric telescopic rod 10 is provided on the inner side of the upper end of the outer frame 4, and a third rubber anti-slip pad 11 is provided at the lower end of the electric telescopic rod 10. In this invention, the adjusting rod 501 is mounted on the outer frame 4 via a built-in bearing 502 to form a rotating structure. The adjusting rod 501 and the movable clamping rod 504 are connected by threads, and the movable clamping rod 504 is connected to the second rubber anti-slip pad 505 by adhesive bonding. When the substrate body 6 is placed on the upper surface of the first rubber anti-slip pad 3, rotating the movable handle 503 causes the adjusting rod 501 to rotate on the outer frame 4 via the built-in bearing 502. This allows the movable clamping rod 504, which is threaded to the adjusting rod 501, to move back and forth. This facilitates the use of the second rubber anti-slip pad 505 to limit and clamp the substrate body 6, preventing shaking during testing and effectively improving the stability of the device.

[0038] The substrate body 6 is disposed inside the clamping assembly 5. Cover plates 9 are provided at both the upper and lower ends of the substrate body 6, and a solder plate 8 is provided on the outer side of the cover plates 9. A fixing handle 7 is provided at the left end of the substrate body 6, and a flow cavity 12 is formed inside the substrate body 6. Removable plug bodies 13 are provided on both the front and rear sides of the right end of the substrate body 6. A first sealing member 14, which fits against the substrate body 6, is provided on the left side of the removable plug body 13. A movable protrusion 15, located inside the substrate body 6, is provided on the outer side of the removable plug body 13, and an elastic member, specifically a limiting spring 16, is provided on the outer side of the movable protrusion 15. This invention allows for the disassembly and replacement of the removable plug body 13 as needed to accommodate different sizes. The removable plug body 13 and the movable protrusion 15 are connected by a snap-fit ​​mechanism, and the movable protrusion 15 forms an elastic telescopic structure inside the substrate body 6 via the limiting spring 16, improving the removability of the removable plug body 13.

[0039] A connecting hose 17 is located at the right end of the detachable plug body 13. A regulating valve 18 is located at the lower end of the connecting hose 17, and a water storage tank 20 connected to the fixed mounting base 1 is located below the connecting hose 17. A second sealing element 19 is provided at the connection between the connecting hose 17 and the water storage tank 20. A water inlet pipe 24 is located at the lower end of the connecting hose 17, and a circulating water pump 25 is located at the lower end of the water inlet pipe 24. A digital control display screen 21 is located on the upper front side of the water storage tank 20. In this invention, the connecting hose 17, through the second sealing element 19, passes through the water storage tank 20 and forms a communication structure with the water inlet pipe 24. The water inlet pipe 24 and the water outlet pipe 26 are arranged correspondingly about the center line of the water storage tank 20, which can improve the heat dissipation effect by adjusting the liquid temperature inside the water storage tank 20.

[0040] Example 2

[0041] like Figures 1-8As shown, a liquid-cooled plate flow resistance testing device includes a fixed support frame 2 installed on the upper left surface of a fixed mounting base 1, and a first rubber anti-slip pad 3 provided on the upper surface of the fixed support frame 2. An outer frame 4 is provided at the upper end of the fixed support frame 2, and clamping components 5 are provided at both the front and rear ends of the outer frame 4. An electric telescopic rod 10 is provided on the inner side of the upper end of the outer frame 4, and a third rubber anti-slip pad 11 is provided at the lower end of the electric telescopic rod 10. In this invention, the adjusting rod 501 is mounted on the outer frame 4 via a built-in bearing 502 to form a rotating structure. The adjusting rod 501 and the movable clamping rod 504 are connected by threads, and the movable clamping rod 504 is connected to the second rubber anti-slip pad 505 by adhesive bonding. When the substrate body 6 is placed on the upper surface of the first rubber anti-slip pad 3, rotating the movable handle 503 causes the adjusting rod 501 to rotate on the outer frame 4 via the built-in bearing 502. This allows the movable clamping rod 504, which is threaded to the adjusting rod 501, to move back and forth. This facilitates the use of the second rubber anti-slip pad 505 to limit and clamp the substrate body 6, preventing shaking during testing and effectively improving the stability of the device.

[0042] The substrate body 6 is disposed inside the clamping assembly 5. Cover plates 9 are provided at both the upper and lower ends of the substrate body 6, and a solder plate 8 is provided on the outer side of the cover plates 9. A fixing handle 7 is provided at the left end of the substrate body 6, and a flow cavity 12 is formed inside the substrate body 6. Removable plug bodies 13 are provided on both the front and rear sides of the right end of the substrate body 6. A first sealing member 14, which fits against the substrate body 6, is provided on the left side of the removable plug body 13. A movable protrusion 15, located inside the substrate body 6, is provided on the outer side of the removable plug body 13, and an elastic member, specifically a limiting spring 16, is provided on the outer side of the movable protrusion 15. This invention allows for the disassembly and replacement of the removable plug body 13 as needed to accommodate different sizes. The removable plug body 13 and the movable protrusion 15 are connected by a snap-fit ​​mechanism, and the movable protrusion 15 forms an elastic telescopic structure inside the substrate body 6 via the limiting spring 16, improving the removability of the removable plug body 13.

[0043] The connecting hose 17 is located at the right end of the detachable plug body 13. The lower end of the connecting hose 17 is provided with a regulating valve 18. A water storage tank 20 connected to the fixed mounting base 1 is located below the connecting hose 17. A second sealing element 19 is provided at the connection between the connecting hose 17 and the water storage tank 20. A water inlet pipe 24 is provided at the lower end of the connecting hose 17. A circulating water pump 25 is provided at the lower end of the water inlet pipe 24. A digital control display screen 21 is provided on the upper front side of the water storage tank 20.

[0044] Furthermore, a function button 22 is provided below the CNC display screen 21, a temperature control plate 23 is provided on the outside of the water storage tank 20, and a water outlet pipe 26 is provided on the rear side of the inside of the water storage tank 20, with a filter head 27 provided at the lower end of the water outlet pipe 26. The present invention provides a connecting hose 17 that passes through the water storage tank 20 and the inlet pipe 24 via a second sealing member 19 to form a communication structure. The inlet pipe 24 and the outlet pipe 26 are arranged in a corresponding manner about the center line of the water storage tank 20. The data displayed on the CNC display screen 21 can be adjusted by the function button 22, so that the temperature of the liquid inside the water storage tank 20 can be controlled by the temperature control plate 23, thereby improving the heat dissipation effect.

[0045] Specifically, the plug models for testing the flow resistance of liquid-cooled plates include the following: inner diameters of 8mm, 8.5mm, 9mm, 10mm, and 12mm. The cold plate flow channel depths for testing the flow resistance of liquid-cooled plates include the following: depths of 3mm, 4mm, 5mm, and 6mm. The different inner diameters of the removable plugs are designed to meet different pipe diameter requirements. With a fixed pipe diameter, the pressure drop of the cold plate is adjusted by changing the cold plate flow channel depth. Therefore, using removable plugs facilitates rapid testing to determine the flow channel depth that meets the pressure drop requirements. Generally, to obtain 20 sets of flow resistance test results, 20 different cold plate samples need to be fabricated. In this embodiment, by fabricating five types of removable plugs and four types of cold plates, 20 sets of flow resistance test results can be obtained, greatly reducing the cost of sample fabrication.

[0046] Example 3

[0047] like Figures 1-8 As shown, based on Embodiment 1 or Embodiment 2, a liquid-cooled plate flow resistance testing device and its flow resistance testing method include the following steps:

[0048] Step 1: First, connect the symmetrically arranged cover plate body 9 to the substrate body 6, and then connect the symmetrically arranged solder plate body 8 to the cover plate body 9. At this time, place the entire substrate body 6 on the first rubber anti-slip pad 3.

[0049] Step 2: Use clamping component 5 to limit and clamp the front and rear ends of the substrate body 6, and open the electric telescopic rod 10 to drive the third rubber anti-slip pad 11 to limit and fix the upper end of the substrate body 6. This operation can ensure the overall stability of the substrate body 6 and avoid shaking.

[0050] Step 3: Connect the detachable plug body 13 to the flow cavity 12 opened inside the base plate body 6 according to different needs;

[0051] Step 4: Connect the connecting hose 17, which is connected to the detachable plug body 13, to the water storage tank 20, and then adjust the data displayed on the CNC display screen 21 by adjusting the function button 22.

[0052] Determine the test temperature: Use the temperature control board 23 to control the temperature of the liquid inside the water storage tank 20.

[0053] Determine the test flow rate: Adjust the flow rate by adjusting the flow control panel on the digital control display. Flow rate is measured using a Turbine Flowmeter DN15, and the flow rate can be adjusted by controlling the flow valve. At this point, turning on the circulating water pump 25 will allow the liquid to enter the substrate body 6 from the inlet pipe 24 along the connecting hose 17, and then, after circulation testing, it will be discharged into the water storage tank 20 from the outlet pipe 26.

[0054] Example 4

[0055] Based on Embodiment 1, 2, or 3, firstly, the circulating water pump 25 is turned on to introduce liquid into the solder plate body 8 at a certain flow rate Q, filling the channels of the solder plate body 8 with liquid. A flow resistance testing device is connected in series to the test passage of the flow cavity 12. The flow resistance testing device is used to detect the flow state in the passage. A digital pressure gauge (DPG-005) is used to measure the pressure at the inlet and outlet of the passage. The pressure difference ΔP generated by the liquid passing through this flow channel at a given flow rate is recorded. The fluid resistance can be calculated using Darcy's formula. The measuring instrument is then set to flow resistance measurement mode, and the two connecting probes are inserted into the desired channel positions. The known flow rate Q is input to obtain the microchannel flow resistance value.

[0056] Working principle:

[0057] like Figures 1-8 As shown, when using this high-efficiency method for testing the flow resistance of liquid-cooled plates, firstly, all parts are assembled, and then the fixed support frame 2 is stably placed on the ground using the fixed mounting base 1, specifically as follows: Figure 1 , Figure 3 and Figure 4In this configuration, the cover plate body 9 and the solder plate body 8 are symmetrically arranged about the center line of the substrate body 6. Pulling the fixing handle 7 places the assembled substrate body 6 on the upper surface of the first rubber anti-slip pad 3. The adjusting rod 501 forms a rotating structure on the outer frame 4 through the built-in bearing 502. The adjusting rod 501 is connected to the movable clamping rod 504 by a thread, and the movable clamping rod 504 is connected to the second rubber anti-slip pad 505 by an adhesive. When the substrate body 6 is placed on the upper surface of the first rubber anti-slip pad 3, rotating the movable handle 503 causes the adjusting rod 501 to rotate on the outer frame 4 through the built-in bearing 502. This causes the movable clamping rod 504, which is threaded to the adjusting rod 501, to move back and forth, facilitating the limiting clamping and fixing of the substrate body 6 using the second rubber anti-slip pad 505. Then, opening the electric telescopic rod 10 drives the third rubber anti-slip pad 11, which can limit and fix the upper end of the substrate body 6, preventing shaking during testing under the action of the clamping assembly 5.

[0058] Specific examples Figure 5 , Figure 6 and Figure 7 In this design, the removable plug body 13 has inner diameters of 8, 8.5, 9, 10, and 12, allowing for easy disassembly and replacement to accommodate different sizes. The removable plug body 13 is connected to the movable protrusion 15 via a snap-fit ​​mechanism through the flow cavity 12. The movable protrusion 15, via a limiting spring 16, forms an elastic telescopic structure on the inner side of the base plate body 6, improving the removability of the removable plug body 13. A first sealing element 14, which fits against the base plate body 6, is located at the left end of the removable plug body 13, enhancing sealing. Specifically, the flow resistance testing equipment and the temperature regulation of the water tank 20 utilize existing technologies; specific models will not be detailed here, as long as they enable water temperature regulation and flow resistance testing.

[0059] Specific examples Figure 1 , Figure 4 and Figure 8In this process, the connecting hose 17, which is connected to the detachable plug body 13, is connected to the water storage tank 20. At this time, pressing the function button 22 displays the temperature data on the CNC display screen 21 for viewing. The temperature inside the water storage tank 20 can be controlled by the temperature control board 23, which also achieves the heat dissipation effect. A second seal 19 is provided at the connection between the connecting hose 17 and the water storage tank 20. The connecting hose 17 is connected to the circulating water pump 25 through the water inlet pipe 24. When the circulating water pump 25 is turned on, the liquid in the water storage tank 20 can be transported to the flow cavity 12 opened in the base plate body 6 through the connecting hose 17. The lower end of the connecting hose 17 is provided with a regulating valve 18, which can be manually adjusted to adjust the flow rate. After circulation testing, the liquid can be filtered through the filter head 27 along the water outlet pipe 26 and then discharged back into the water storage tank 20. This cycle is repeated. According to this method, only 4 cold plates and 10 plugs are needed to complete the process.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments 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 liquid cold plate flow resistance testing apparatus, characterized by, The utility model relates to a liquid cooling plate flow resistance test device and test method thereof, and the liquid cooling plate flow resistance test device comprises a fixed mounting base, a fixed support frame is arranged on the fixed mounting base, an outer frame is further arranged on the fixed support frame, a receiving space for placing a liquid cooling plate is reserved between the outer frame and the fixed support frame, a plurality of positioning mechanisms capable of telescopic displacement relative to the liquid cooling plate are arranged on the outer frame, a flow resistance test mechanism is further arranged on one side of the fixed mounting base, and a cold liquid input end and a cold liquid output end of a liquid cooling passage in the liquid cooling plate are respectively connected with a test liquid input end and a test liquid output end of the flow resistance test mechanism. The outer frame adopts a half-frame structure, the positioning mechanism comprises a top positioning assembly corresponding to the liquid cooling plate to be tested and arranged on the top of the half-frame structure, and a side positioning assembly corresponding to the liquid cooling plate to be tested and arranged on the side of the half-frame structure. The top positioning assembly comprises an electric telescopic rod arranged on the top of the outer frame, a pressing plate is drivenly arranged on the electric telescopic rod, and a third rubber anti-skid pad is arranged on the pressing side of the pressing plate. The side positioning assembly comprises oppositely arranged clamping assemblies, the clamping assembly comprises a movable clamping rod, one end of the movable clamping rod is arranged on a movable guide rod on the outer frame, the other end of the movable clamping rod is provided with a side pressing plate, a second rubber anti-skid pad is arranged on the pressing side of the side pressing plate, and the movable clamping rod is drivingly connected with the outer frame through an adjusting rod. The liquid cooling plate comprises a base plate body, cover plate bodies are arranged on the two sides of the base plate body, and brazing material plate bodies are further arranged on the outer sides of the cover plate bodies; the base plate body comprises an outer plate and an inner plate oppositely embedded with the outer plate, a rotary or disc-shaped flow passage is reserved between the outer plate and the inner plate, the cover plate bodies are attached to the two sides of the base plate body and lock the flow passage to form the liquid cooling passage.

2. The liquid cold plate flow resistance testing device of claim 1, wherein: The movable clamping rod adopts a π-shaped structure, and the movable guide rod is vertically arranged on the side pressing plate.

3. The liquid cold plate flow resistance testing device of claim 1, wherein: The liquid cooling plate can be placed between the oppositely arranged clamping assemblies, the end of the base plate body is provided with a detachable plug body capable of being connected with the cold liquid input end and the cold liquid output end, and the cold liquid input end and the cold liquid output end are respectively connected with a water storage tank of the flow resistance test mechanism through the detachable plug body, a connecting hose and an adjusting valve.

4. The liquid cold plate flow resistance testing device of claim 2, wherein: Resilient members are arranged between the large end of the movable protrusion and the base plate body, and the detachable plug body and the movable protrusion are connected in a resilient clamping and abutting structure.

5. The liquid cold plate flow resistance testing device of claim 4, wherein: The cold liquid input end is connected with the water storage tank through a connecting hose, a water inlet pipeline and a circulating water pump, and the cold liquid output end is connected with the water storage tank through another connecting hose and a water outlet pipeline.

6. The liquid cold plate flow resistance testing device of claim 5, wherein: The liquid cooling plate flow resistance test device and test method thereof of claim 1, the test method of the liquid cooling plate flow resistance test device comprises the following steps:

7. A flow resistance test method of a liquid cold plate flow resistance test device, characterized by, Step one, first connect the symmetrically arranged cover plate bodies with the base plate body, then connect the symmetrically arranged brazing material plate bodies with the cover plate bodies, and at this time, place the base plate body on the first rubber anti-skid pad as a whole; ​ Step two, the front and rear ends of the substrate body are clamped and fixed by using the clamping assembly, the upper end of the substrate body is clamped and fixed by opening the electric telescopic rod to drive the third rubber non-slip pad, the overall stability of the substrate body is ensured, and shaking is avoided; Step three, according to different needs, the detachable plug body is connected with the flow cavity opened in the substrate body; Step four, the connecting hose connected with the detachable plug body is connected with the water storage tank, the temperature of the liquid in the water storage tank is adjusted, at this time the circulating water pump is opened, the liquid can enter the substrate body along the connecting hose from the water inlet pipeline, and then is discharged into the water storage tank from the water outlet pipeline, and the flow resistance in the circulating test liquid cooling plate is tested.

8. The flow resistance test method of the liquid cooling plate flow resistance test device according to claim 7, wherein: In step four, the connecting hose connected with the detachable plug body is connected with the water storage tank, then the data displayed on the numerical control display screen through the adjustment function key, the temperature of the liquid in the water storage tank can be controlled by using the temperature control plate, at this time the circulating water pump is opened, the liquid can enter the substrate body along the connecting hose from the water inlet pipeline, and then is discharged into the water storage tank from the water outlet pipeline after circulation test, and the flow resistance in the circulating test liquid cooling plate is tested.

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