CN220039522U - Water-cooling plate flow resistance and thermal resistance testing device - Google Patents
Water-cooling plate flow resistance and thermal resistance testing device Download PDFInfo
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- CN220039522U CN220039522U CN202321483889.4U CN202321483889U CN220039522U CN 220039522 U CN220039522 U CN 220039522U CN 202321483889 U CN202321483889 U CN 202321483889U CN 220039522 U CN220039522 U CN 220039522U
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- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 230000001502 supplementing effect Effects 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 238000010276 construction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000002637 fluid replacement therapy Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model belongs to the field of testing devices, in particular to a water-cooling plate flow resistance and thermal resistance testing device, which aims at solving the problems that the existing testing equipment is complex in operation and inconvenient in use, and adopts the following scheme that the testing device comprises a frame body, wherein one side of the frame body is fixedly connected with a controller and a cylinder, the surface of the controller is provided with a fault indicator lamp, and one end of a piston rod of the cylinder is fixedly connected with a pressing plate; the surface of the frame body is fixedly connected with a first heater, the surface of the first heater is provided with a thermocouple, the other side of the frame body is fixedly connected with a water tank and a filter, and the outer wall of one side of the water tank is provided with a fluid supplementing joint; the first group of pipeline components are arranged between the water tank and the filter, and the device is simple to operate, more convenient to use, compact in structural design and small in volume occupation, can set different flow rates for repeated testing, and ensures the accuracy of test data.
Description
Technical Field
The utility model relates to the technical field of testing devices, in particular to a water-cooling plate flow resistance and thermal resistance testing device.
Background
Before the water cooling plate is put into practical use, whether the design of the water cooling plate meets the use requirement is verified by testing the flow resistance and the thermal resistance of the water cooling plate on an experimental platform. The thermal resistance refers to the ratio between the temperature difference across the water-cooled plate and the power of the heat source when heat is transferred across the water-cooled plate. The flow resistance refers to the pressure difference of the liquid flowing through the water cooling plate and the inlet and the outlet of the water cooling plate under the state of stable fluid.
Heat is inevitably generated in the operation of the electronic equipment, and heat accumulation can cause irreversible damage to the performance, reliability and safety of components and equipment, so that a heat solving countermeasure is one of important matters to be solved all the time, and therefore, a sampling test is required to be performed on a processed water cooling plate, and a flow resistance test and a thermal resistance test are one of key indexes for checking the performance of the heat solving countermeasure, namely a core component of a heat dissipation system, but the conventional test equipment has the following defects when in use:
1. the existing test equipment is complex to operate and inconvenient to use.
2. The traditional flow resistance test and the traditional thermal resistance test are required to be independently tested and verified on different experimental platforms respectively, different press-fitting modes are exchanged, the test flow is more tedious, and the operation is more complex.
In order to solve the problems, the utility model provides a water-cooling plate flow resistance and thermal resistance testing device.
Disclosure of Invention
The utility model provides a water-cooling plate flow resistance and thermal resistance testing device, which solves the defects of complex operation and inconvenient use of testing equipment in the prior art.
The utility model provides the following technical scheme:
a water-cooled panel flow resistance and thermal resistance testing device, comprising:
the device comprises a frame body, wherein one side of the frame body is fixedly connected with a controller and an air cylinder, a fault indicator lamp is arranged on the surface of the controller, and one end of a piston rod of the air cylinder is fixedly connected with a pressing plate; the surface of the frame body is fixedly connected with a first heater, the surface of the first heater is provided with a thermocouple, the other side of the frame body is fixedly connected with a water tank and a filter, and the outer wall of one side of the water tank is provided with a fluid supplementing joint;
a first set of conduit assemblies disposed between the tank and the filter for transporting a medium;
a second set of conduit assemblies disposed on one side of the filter for transporting media;
and the third group of pipeline assemblies are arranged on one side of the water tank and are used for conveying media.
In one possible design, the first group of pipeline components comprises a circulating pump, the circulating pump is fixedly connected to the inner side of the frame body, a first pipeline is communicated between the circulating pump and the water tank, a second pipeline is communicated between the circulating pump and the filter, a third pipeline is communicated between the first pipeline and the second pipeline, a check valve and a radiator are arranged on the outer wall of the second pipeline, and a needle valve is arranged on the outer wall of the third pipeline.
In one possible design, the second set of pipe assemblies includes a fourth pipe, the fourth pipe being disposed on one side of the filter in a communicating manner, a first quick connector being disposed at the other end of the fourth pipe, and a flow meter, a first stop valve, a first temperature transmitter, and a first pressure transmitter being disposed on an outer wall of the fourth pipe.
In one possible design, the third group of pipeline assemblies includes a fifth pipeline, the fifth pipeline is arranged on one side of the water tank in a communicating manner, a second quick connector is arranged at the other end of the fifth pipeline, and a second stop valve, a second temperature transmitter and a second pressure transmitter are arranged on the outer wall of the fifth pipeline.
In one possible design, a sixth pipeline is connected between the fourth pipeline and the fifth pipeline, and a third stop valve is arranged on the outer wall of the sixth pipeline.
In one possible design, a second heater is fixedly connected to the outer wall of one side of the water tank.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
According to the utility model, through the arrangement of a plurality of structures such as the controller, the first stop valve and the second stop valve, the operation of the equipment is simple, the convenience is provided for the test, the structural design is compact, and the occupied volume is small;
according to the utility model, through the arrangement of the controller, the air cylinder, the first heater and other structures, when the flow resistance test or the thermal resistance test is carried out, the flow resistance test and the thermal resistance test can be tested on the same platform, different flow rates can be set for carrying out multiple tests, and the accuracy of test data is ensured;
in the utility model, the operation of the equipment is simple, the use is more convenient, the structural design is compact, the volume occupation is smaller, different flow rates can be set for repeated test, and the accuracy of test data is ensured.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a device for testing the flow resistance and thermal resistance of a water-cooled plate according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a three-dimensional structure of a second angle of a device for testing the resistance and thermal resistance of a water-cooled plate according to an embodiment of the present utility model;
FIG. 3 is a schematic three-dimensional view of a third angle of a device for testing the resistance and thermal resistance of a water-cooled plate according to an embodiment of the present utility model;
fig. 4 is a schematic flow chart of a flow resistance and thermal resistance testing device for a water-cooled plate according to an embodiment of the utility model.
Reference numerals:
1. a frame body; 2. a controller; 3. a fault indicator light; 4. a cylinder; 5. a pressing plate; 6. a first heater; 7. a water tank; 8. a circulation pump; 9. a filter; 10. a second heater; 11. a first pipe; 12. a second pipe; 13. a check valve; 14. a third conduit; 15. a needle valve; 16. a heat sink; 17. a fourth conduit; 18. a flow meter; 19. a first stop valve; 20. a first temperature transmitter; 21. a first pressure transmitter; 22. a first quick connector; 23. a fifth pipe; 24. a second shut-off valve; 25. a second temperature transmitter; 26. a second pressure transmitter; 27. a second quick connector; 28. a fluid replacement joint; 29. a sixth conduit; 30. a third stop valve; 31. a thermal couple.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.
Example 1
Referring to fig. 1-4, a water-cooling plate flow resistance and thermal resistance testing device comprises a frame body 1, wherein one side of the frame body 1 is fixedly connected with a controller 2 and a cylinder 4, the surface of the controller 2 is provided with a fault indicator lamp 3, and one end of a piston rod of the cylinder 4 is fixedly connected with a pressing plate 5; the surface of the frame body 1 is fixedly connected with a first heater 6, the surface of the first heater 6 is provided with a thermocouple 31, the other side of the frame body 1 is fixedly connected with a water tank 7 and a filter 9, and the outer wall of one side of the water tank 7 is provided with a fluid supplementing joint 28; a first set of pipe assemblies arranged between the tank 7 and the filter 9 for transporting a medium; a second group of pipe assemblies provided at one side of the filter 9 for transporting a medium; a third set of pipe assemblies, which are arranged on one side of the water tank 7, for conveying the medium.
In the above technical scheme, the controller 2 is used for controlling the start and stop of corresponding equipment, the cylinder 4 is used for controlling the lifting of the pressing plate 5, the fault indicator 3 is used for reminding a worker that the device breaks down, the first heater 6 is used for heating a workpiece to perform a thermal resistance test, the thermocouple 31 is used for testing the temperature of the surface of the heated workpiece, the water tank 7 is used for storing media, the filter 9 is used for filtering media, and the fluid replacement connector 28 is used for supplementing media.
Referring to fig. 4, the first group of pipe assemblies includes a circulation pump 8, the circulation pump 8 is fixedly connected to the inner side of the frame 1, a first pipe 11 is communicated between the circulation pump 8 and the water tank 7, a second pipe 12 is communicated between the circulation pump 8 and the filter 9, a third pipe 14 is communicated between the first pipe 11 and the second pipe 12, a check valve 13 and a radiator 16 are arranged on the outer wall of the second pipe 12, and a needle valve 15 is arranged on the outer wall of the third pipe 14.
In the above technical solution, the circulation pump 8 is used for driving the medium to circulate, and the radiator 16 is used for radiating the medium.
Referring to fig. 4, the second group of pipe assemblies includes a fourth pipe 17, the fourth pipe 17 is communicatively disposed at one side of the filter 9, the other end of the fourth pipe 17 is provided with a first quick connector 22, and the outer wall of the fourth pipe 17 is provided with a flow meter 18, a first stop valve 19, a first temperature transmitter 20 and a first pressure transmitter 21.
In the above technical solution, the flow meter 18 is used for detecting the flow of the medium, the first quick connector 22 is used for communicating with the water inlet of the workpiece, the first temperature transmitter 20 is used for detecting the temperature before the medium enters the workpiece, and the first pressure transmitter 21 is used for detecting the pressure before the medium enters the workpiece.
Referring to fig. 4, the third group of pipe assemblies includes a fifth pipe 23, a second quick connector 27 is provided at the other end of the fifth pipe 23, which is disposed on one side of the water tank 7 in a communicating manner, and a second stop valve 24, a second temperature transmitter 25 and a second pressure transmitter 26 are provided at the outer wall of the fifth pipe 23.
In the above technical solution, the second quick connector 27 is used for communicating with the water outlet of the workpiece, the second temperature transmitter 25 is used for detecting the temperature of the medium after flowing out of the workpiece, and the second pressure transmitter 26 is used for detecting the pressure of the medium after flowing out of the workpiece.
Example two
Referring to fig. 1-4, a water-cooling plate flow resistance and thermal resistance testing device comprises a frame body 1, wherein one side of the frame body 1 is fixedly connected with a controller 2 and a cylinder 4, the surface of the controller 2 is provided with a fault indicator lamp 3, and one end of a piston rod of the cylinder 4 is fixedly connected with a pressing plate 5; the surface of the frame body 1 is fixedly connected with a first heater 6, the surface of the first heater 6 is provided with a thermocouple 31, the other side of the frame body 1 is fixedly connected with a water tank 7 and a filter 9, and the outer wall of one side of the water tank 7 is provided with a fluid supplementing joint 28; a first set of pipe assemblies arranged between the tank 7 and the filter 9 for transporting a medium; a second group of pipe assemblies provided at one side of the filter 9 for transporting a medium; a third set of pipe assemblies, which are arranged on one side of the water tank 7, for conveying the medium.
In the above technical scheme, the controller 2 is used for controlling the start and stop of corresponding equipment, the cylinder 4 is used for controlling the lifting of the pressing plate 5, the fault indicator 3 is used for reminding a worker that the device breaks down, the first heater 6 is used for heating a workpiece to perform a thermal resistance test, the thermocouple 31 is used for testing the temperature of the surface of the heated workpiece, the water tank 7 is used for storing media, the filter 9 is used for filtering media, and the fluid replacement connector 28 is used for supplementing media.
Referring to fig. 4, the first group of pipe assemblies includes a circulation pump 8, the circulation pump 8 is fixedly connected to the inner side of the frame 1, a first pipe 11 is communicated between the circulation pump 8 and the water tank 7, a second pipe 12 is communicated between the circulation pump 8 and the filter 9, a third pipe 14 is communicated between the first pipe 11 and the second pipe 12, a check valve 13 and a radiator 16 are arranged on the outer wall of the second pipe 12, and a needle valve 15 is arranged on the outer wall of the third pipe 14.
In the above technical solution, the circulation pump 8 is used for driving the medium to circulate, and the radiator 16 is used for radiating the medium.
Referring to fig. 4, the second group of pipe assemblies includes a fourth pipe 17, the fourth pipe 17 is communicatively disposed at one side of the filter 9, the other end of the fourth pipe 17 is provided with a first quick connector 22, and the outer wall of the fourth pipe 17 is provided with a flow meter 18, a first stop valve 19, a first temperature transmitter 20 and a first pressure transmitter 21.
In the above technical solution, the flow meter 18 is used for detecting the flow of the medium, the first quick connector 22 is used for communicating with the water inlet of the workpiece, the first temperature transmitter 20 is used for detecting the temperature before the medium enters the workpiece, and the first pressure transmitter 21 is used for detecting the pressure before the medium enters the workpiece.
Referring to fig. 4, the third group of pipe assemblies includes a fifth pipe 23, a second quick connector 27 is provided at the other end of the fifth pipe 23, which is disposed on one side of the water tank 7 in a communicating manner, and a second stop valve 24, a second temperature transmitter 25 and a second pressure transmitter 26 are provided at the outer wall of the fifth pipe 23.
In the above technical solution, the second quick connector 27 is used for communicating with the water outlet of the workpiece, the second temperature transmitter 25 is used for detecting the temperature of the medium after flowing out of the workpiece, and the second pressure transmitter 26 is used for detecting the pressure of the medium after flowing out of the workpiece.
Referring to fig. 4, a sixth pipe 29 is connected between the fourth pipe 17 and the fifth pipe 23, and a third shut-off valve 30 is provided on the outer wall of the sixth pipe 29.
In the above technical scheme, the third stop valve 30 is used for controlling the sixth pipeline 29 to be opened and closed, and the medium can circulate by matching with the first stop valve 19 and the second stop valve 24, so that the device is convenient to detect.
Referring to fig. 4, a second heater 10 is fixedly connected to an outer wall of one side of the water tank 7, the temperature of water is adjusted by the rotation speed of a fan of the second heater 10 and an air radiator 16 in the water tank 7, and the temperature of water or other test media can be set on a touch screen of the controller 2; the water heater can be automatically adjusted, and when the water temperature is low, the heater is started; when the water temperature is high, the fan of the radiator 16 is started and the fan rotation speed is adjusted.
In the above technical solution, the second heater 10 is used for heating the water tank 7 for thermal resistance detection.
However, as well known to those skilled in the art, the working principles and wiring methods of the cylinder 4 and the circulation pump 8 are common and are not described in detail herein, while the construction and principles of the first heater 6, the second heater 10, the flowmeter 18, the first temperature transmitter 20, the second temperature transmitter 25 and the thermocouple 31 are the same as those of the patent publication No. CN218823102U, the construction and principles of the first pressure transmitter 21 and the second pressure transmitter 26 are the same as those of the patent publication No. CN217466169U, and therefore the construction and principles are not described in detail herein, and the construction and principles of the radiator 16 are the same as those of the patent publication No. CN210603827U, and therefore the construction and principles are not described in detail, and those skilled in the art can perform any choice according to their needs or convenience.
The working principle and the using flow of the technical scheme are as follows:
when testing flow resistance, the controller 2 is used for setting the parameters of test flow rate and water supply temperature, then the test is started, firstly, the water inlet of the workpiece to be tested is connected with the first quick connector 22, the water outlet of the workpiece to be tested is connected with the second quick connector 27, then the circulating pump 8 is started, water or other test mediums flow into the workpiece to be tested after passing through the first pipeline 11, the second pipeline 12, the radiator 16, the filter 9, the fourth pipeline 17 and the first stop valve 19, then flow back to the fifth pipeline 23 and the second stop valve 24, finally flow into the water tank 7, and the reciprocating cycle is performed in such a way, meanwhile, the second heater 10 is started, then the second stop valve 24, the check valve 13 and the third stop valve 30 are sequentially closed, and after the first temperature transmitter 20 monitors that the water inlet temperature reaches the set temperature, the flowmeter 18 monitors that the flow rate Q reaches the set flow rate and the pressure P measured by the first pressure transmitter 21 is calculated after stabilizing in And pressure P measured by second pressure transducer 26 out The control system calculates the flow resistance Δp=p according to the formula in -P out After the working condition test is completed, different flow rates are set by the controller 2, the test is repeated, so that the flow resistance of the test workpiece under different flow rates is obtained, the flow rate and the flow resistance information are reflected on the controller 2, a test result curve is formed, and the flow resistance test is completed;
when testing the thermal resistance, the controller 2 is used for setting the parameters of the test flow and the water supply temperature, then the test is started, firstly, the water inlet of the workpiece to be tested is connected with the first quick connector 22, the water outlet of the workpiece to be tested is connected with the second quick connector 27, and then the test is startedThe circulating pump 8 flows water or other test media into the workpiece to be tested after passing through the first pipeline 11, the second pipeline 12, the radiator 16, the filter 9, the fourth pipeline 17 and the first stop valve 19, and then flows back to the fifth pipeline 23 and the second stop valve 24, and finally flows into the water tank 7, and circulates in a reciprocating manner, then the first heater 6 is started, the cylinder 4 is restarted to drive the pressing plate 5 to press the workpiece to be tested downwards, then the first heater 6 is started, then the second stop valve 24, the check valve 13 and the third stop valve 30 are sequentially closed, and the water inlet temperature T is monitored by the first temperature transmitter 20 c When the set temperature is reached, the flowmeter 18 monitors that the flow Q reaches the set flow and is stable, the first heater 6 is started, the radiator 16 is started at the same time, when the heating power Q of the first heater 6 reaches the set power and is stable, and the thermocouple 31 measures the temperature T of the contact surface with the workpiece to be measured in After stabilization, the control system follows a thermal resistance formula r= (T) in -T c ) And/q, the working condition test is completed, then different flow rates are set by using the controller 2, the test is repeated, the thermal resistance of the test workpiece under different flow rates is obtained, the flow rate and the thermal resistance information are reflected on the controller 2, a test result curve is formed, and the thermal resistance test is completed.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a water-cooling board flow resistance thermal resistance testing arrangement which characterized in that includes:
the device comprises a frame body (1), wherein one side of the frame body (1) is fixedly connected with a controller (2) and an air cylinder (4), a fault indicator lamp (3) is arranged on the surface of the controller (2), and one end of a piston rod of the air cylinder (4) is fixedly connected with a pressing plate (5); the surface of the frame body (1) is fixedly connected with a first heater (6), the surface of the first heater (6) is provided with a thermal couple (31), the other side of the frame body (1) is fixedly connected with a water tank (7) and a filter (9), and the outer wall of one side of the water tank (7) is provided with a fluid supplementing joint (28);
a first set of pipe assemblies arranged between the tank (7) and the filter (9) for conveying a medium;
a second set of pipe assemblies arranged on one side of the filter (9) for transporting a medium;
and a third group of pipeline assemblies arranged on one side of the water tank (7) and used for conveying media.
2. The water-cooling plate flow resistance and thermal resistance testing device according to claim 1, wherein the first group of pipeline components comprises a circulating pump (8), the circulating pump (8) is fixedly connected to the inner side of the frame body (1), a first pipeline (11) is communicated between the circulating pump (8) and the water tank (7), a second pipeline (12) is communicated between the circulating pump (8) and the filter (9), a third pipeline (14) is communicated between the first pipeline (11) and the second pipeline (12), a check valve (13) and a radiator (16) are arranged on the outer wall of the second pipeline (12), and a needle valve (15) is arranged on the outer wall of the third pipeline (14).
3. The water-cooling plate flow resistance and thermal resistance testing device according to claim 2, wherein the second group of pipeline components comprises a fourth pipeline (17), the fourth pipeline (17) is communicated with one side of the filter (9), a first quick connector (22) is arranged at the other end of the fourth pipeline (17), and a flowmeter (18), a first stop valve (19), a first temperature transmitter (20) and a first pressure transmitter (21) are arranged on the outer wall of the fourth pipeline (17).
4. A water-cooled panel flow resistance and thermal resistance testing device according to claim 3, wherein the third group of pipeline components comprises a fifth pipeline (23), the fifth pipeline (23) is communicated with one side of the water tank (7), a second quick connector (27) is arranged at the other end of the fifth pipeline (23), and a second stop valve (24), a second temperature transmitter (25) and a second pressure transmitter (26) are arranged on the outer wall of the fifth pipeline (23).
5. The water-cooling plate flow resistance and thermal resistance testing device according to claim 4, wherein a sixth pipeline (29) is communicated between the fourth pipeline (17) and the fifth pipeline (23), and a third stop valve (30) is arranged on the outer wall of the sixth pipeline (29).
6. The water-cooling plate flow resistance and thermal resistance testing device according to any one of claims 1-5, wherein a second heater (10) is fixedly connected to the outer wall of one side of the water tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321483889.4U CN220039522U (en) | 2023-06-12 | 2023-06-12 | Water-cooling plate flow resistance and thermal resistance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321483889.4U CN220039522U (en) | 2023-06-12 | 2023-06-12 | Water-cooling plate flow resistance and thermal resistance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220039522U true CN220039522U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321483889.4U Active CN220039522U (en) | 2023-06-12 | 2023-06-12 | Water-cooling plate flow resistance and thermal resistance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220039522U (en) |
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2023
- 2023-06-12 CN CN202321483889.4U patent/CN220039522U/en active Active
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