Cold plate flow resistance test system for server

Abstract

The utility model relates to a cold plate flow resistance test system for a server. The cold plate flow resistance test system comprises a cold plate, a refrigeration mechanism, a liquid supply pipeline assembly and a liquid return pipeline assembly, each group of pipeline components in the liquid supply pipeline component and the liquid return pipeline component comprises a main pipe section, a test section and a plurality of matching pieces with different inner diameters, one end of the main pipe section is connected with the cold plate, and one end of the test section is connected with the refrigeration mechanism; one end, far away from the cold plate, of the main pipe section is selectively connected with one end, far away from the refrigeration mechanism, of the test section directly or through any matching piece, the inner diameters of the matching piece, the main pipe section and the test section are different from each other, and the inner diameters of the main pipe section and the test section are matched with the inner diameters of corresponding pipe sections in the server liquid cooling system. The accuracy of cold plate flow resistance testing can be improved, and flow resistance matching can be carried out to meet the flow resistance requirement of a server liquid cooling system.

Description

Technical Field

[0001] The present application relates to the technical field of cold plate testing, and in particular to a cold plate flow resistance testing system for a server. Background Art

[0002] Liquid cooling plates are an increasingly popular liquid cooling solution, and they account for an increasing proportion in servers. In the server liquid cooling system, the refrigeration mechanism is connected to the cold plate through the liquid supply pipeline and the liquid return pipeline. The coolant provided by the refrigeration mechanism flows into the cold plate through the liquid supply pipeline, so that the cold plate can cool the heat-generating components of the server. After cooling the heat-generating components, the coolant temperature will increase when it flows out of the cold plate, and it will return to the refrigeration mechanism through the liquid return pipeline for cooling.

[0003] When testing the flow resistance of the cold plate, the refrigeration mechanism is also connected to the cold plate through the liquid supply pipeline and the liquid return pipeline to form a circulating test pipeline system. By circulating the coolant in the circulating test pipeline system, the flow resistance of the cold plate can be obtained based on the relevant parameters (such as pressure, temperature, flow rate, etc.) measured during the circulation of the coolant.

[0004] In the cold plate flow resistance test system in the prior art, the liquid supply pipeline and the liquid return pipeline between the refrigeration mechanism and the cold plate are connected by a single hose passage. The hose is inconsistent with the structure and size standards of the liquid supply pipeline and the liquid return pipeline in the server liquid cooling system, which causes the parameters such as pipeline pressure and temperature measured by the cold plate flow resistance test system to be inconsistent with the actual pipeline environment of the server liquid cooling system, thereby affecting the accuracy of the cold plate flow resistance test. Moreover, when the measured flow resistance of the cold plate does not meet the requirements of the server liquid cooling system, the cold plate flow resistance test system in the prior art cannot meet the requirements of the server liquid cooling system through flow resistance matching. Utility Model Content

[0005] Based on this, it is necessary to provide a cold plate flow resistance testing system for a server, which has the problem that the liquid supply pipeline and the liquid return pipeline between the refrigeration mechanism and the cold plate are connected by a single hose passage, affecting the accuracy of the cold plate flow resistance test; and when the flow resistance of the cold plate does not meet the requirements of the server liquid cooling system, the requirements of the server liquid cooling system cannot be met through flow resistance matching.

[0006] A cold plate flow resistance test system for a server, comprising: a cold plate, a refrigeration mechanism, a liquid supply pipeline assembly and a liquid return pipeline assembly; each set of pipeline assemblies in the liquid supply pipeline assembly and the liquid return pipeline assembly comprises a main pipe section, a test section and a plurality of matching pieces with different inner diameters, one end of the main pipe section is connected to the cold plate, one end of the test section is connected to the refrigeration mechanism, one end of the main pipe section away from the cold plate and one end of the test section away from the refrigeration mechanism can be selectively directly connected or connected and conducted through any of the matching pieces, the inner diameters of the matching piece, the main pipe section and the test section are different from each other, and the inner diameters of the main pipe section and the test section are adapted to the inner diameters of corresponding pipe sections in a liquid cooling system of a server.

[0007] In one embodiment, a pressure sensor is provided on the test section for measuring the pressure of the coolant in the test section.

[0008] In one embodiment, a temperature sensor is provided on the test section for measuring the temperature of the coolant in the test section.

[0009] In one embodiment, the cold plate flow resistance testing system for a server further includes a thermal insulation component, and the liquid supply pipeline assembly and the liquid return pipeline assembly are respectively located in the thermal insulation component.

[0010] In one embodiment, the cold plate flow resistance testing system for a server further comprises a first flow meter, which is disposed at one end of the test section of the liquid supply pipeline assembly close to the refrigeration mechanism and is used to control the liquid supply flow rate.

[0011] In one embodiment, the cold plate flow resistance testing system for a server further includes a second flow meter, which is disposed in the test section of the liquid supply pipeline assembly and is used to measure the flow rate of the coolant in the test section and to be synchronously calibrated with the first flow meter.

[0012] In one embodiment, the cold plate flow resistance testing system for a server further includes a heat source dummy load, and the cold plate is locked onto the heat source dummy load.

[0013] In one embodiment, the cold plate flow resistance testing system for the server also includes a quick-plug connector, which includes a male head and a female head. One of the male head and the female head is arranged at one end of the main pipe section, and the other is arranged at the water supply port or the return port of the cold plate. The main pipe section and the cold plate are plug-connected through the male head and the female head.

[0014] In one embodiment, the cold plate flow resistance testing system for a server further includes a chuck, and the test section is connected to the refrigeration mechanism via a chuck; the matching piece is connected to the main pipe section via a chuck, and the matching piece is connected to the test section via a chuck, for connection testing of the matching section.

[0015] In one embodiment, the matching piece includes a matching tube and a connecting plate connected to the matching tube, and the connecting plates are respectively provided at both ends of the matching tube; one end of the connecting plate close to the matching tube is adapted to the outer diameter of the matching tube, and the other end is used to fit with the end surface of the chuck; the inner diameter of the connecting plate is consistent with that of the matching tube;

[0016] Wherein, along the direction in which the connecting disk is away from the matching tube, the outer diameter of the connecting disk gradually expands; or, the outer diameter of the connecting disk is uniform and larger than the outer diameter of the matching tube.

[0017] In the above-mentioned cold plate flow resistance test system for a server, each set of pipe assemblies in the liquid supply pipe assembly and the liquid return pipe assembly is connected to the refrigeration mechanism through the test section, and is connected to the cold plate through the main pipe section. The coolant provided by the refrigeration mechanism flows into the cold plate through the liquid supply pipe assembly, and the coolant flowing out of the cold plate returns to the refrigeration mechanism again through the liquid return pipe assembly, thereby forming a circulating test pipe system for flow resistance testing. Since the inner diameters of the main pipe section and the test section are adapted to the inner diameters of the corresponding pipe sections in the actual server liquid cooling system (i.e., the pipe section corresponding to the main pipe section and the pipe section corresponding to the test section), the circulating test pipe system of the cold plate flow resistance test system of the server can simulate the actual pipe environment in the actual server liquid cooling system, so that the flow resistance of the circulating test pipe system of the cold plate flow resistance test system of the server is as close as possible to the actual pipe environment in the actual server liquid cooling system, thereby improving the accuracy of the cold plate flow resistance test. Among them, the inner diameters of the main pipe section and the test section are adapted to the corresponding pipe sections in the actual server liquid cooling system, which specifically means that the inner diameters of the main pipe section and the test section are consistent with or quantitatively close to the inner diameters of the corresponding pipe sections in the actual server liquid cooling system.

[0018] Moreover, the end of the main pipe section away from the cold plate and the end of the test section away from the refrigeration mechanism can be selectively connected through any matching piece, and the inner diameters of the matching piece, the main pipe section and the test section are different from each other, so that the flow resistance of the circulation test pipeline system of the cold plate flow resistance test system of the server can be adjusted by using matching pieces with different inner diameters. In this way, when the flow resistance of the cold plate does not meet the requirements of the server liquid cooling system, matching pieces with different inner diameters can be used in the circulation test pipeline system of the cold plate flow resistance test system of the server to perform tests to match the flow resistance, so as to select matching pieces with suitable inner diameters for application in the actual pipeline environment of the server liquid cooling system to meet the flow resistance requirements of the server liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a cold plate flow resistance testing system for a server according to an embodiment of the present application.

[0020] Figure 2 It is a schematic structural diagram of a matching piece according to an embodiment.

[0021] Figure 3 yes Figure 2 Front view of .

[0022] Reference numerals: cold plate 10 ; refrigeration mechanism 20 ; main pipe section 30 ; test section 40 ; matching piece 50 ; matching pipe 51 ; connection plate 52 ; pressure sensor 60 ; temperature sensor 70 ; first flow meter 80 ; second flow meter 90 ; heat source dummy load 100 . DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0029] See also Figure 1 , Figure 1A schematic diagram of a cold plate flow resistance test system for a server in an embodiment of the present application is shown. An embodiment of the present application provides a cold plate flow resistance test system for a server, and the cold plate flow resistance test system for a server includes: a cold plate 10, a refrigeration mechanism 20, a liquid supply pipeline assembly and a liquid return pipeline assembly; each set of pipeline assemblies in the liquid supply pipeline assembly and the liquid return pipeline assembly includes a main pipe section 30 and a test section 40 and a plurality of matching pieces 50 with different inner diameters, one end of the main pipe section 30 is connected to the cold plate 10, one end of the test section 40 is connected to the refrigeration mechanism 20, and the end of the main pipe section 30 away from the cold plate 10 and the end of the test section 40 away from the refrigeration mechanism 20 can be selectively directly connected or connected through any matching piece 50, the inner diameters of the matching piece 50, the main pipe section 30, and the test section 40 are different from each other, and the inner diameters of the main pipe section 30 and the test section 40 are adapted to the inner diameters of the corresponding pipe sections in the server liquid cooling system. Among them, the refrigeration mechanism 20 is preferably a chiller, and can also be other refrigeration mechanisms.

[0030] In the cold plate flow resistance test system for the server, each set of pipe assemblies in the liquid supply pipe assembly and the liquid return pipe assembly is connected to the refrigeration mechanism 20 through the test section 40, and connected to the cold plate 10 through the main pipe section 30. The coolant provided by the refrigeration mechanism 20 flows into the cold plate 10 through the liquid supply pipe assembly, and the coolant flowing out of the cold plate 10 returns to the refrigeration mechanism 20 again through the liquid return pipe assembly, thereby forming a circulation test pipe system for flow resistance testing. Since the inner diameters of the main pipe section 30 and the test section 40 are adapted to the inner diameters of the corresponding pipe sections in the actual server liquid cooling system (i.e., the pipe section corresponding to the main pipe section 30 and the pipe section corresponding to the test section 40), the circulation test pipe system of the cold plate flow resistance test system of the server can simulate the actual pipe environment in the actual server liquid cooling system, so that the circulation test pipe system of the cold plate flow resistance test system of the server is as close as possible to the flow resistance of the actual pipe environment in the actual server liquid cooling system, thereby improving the accuracy of the cold plate flow resistance test. Among them, the inner diameters of the main pipe section 30 and the test section 40 are adapted to the corresponding pipe sections in the actual server liquid cooling system, which specifically means that the inner diameters of the main pipe section 30 and the test section 40 are consistent with or quantitatively close to the inner diameters of the corresponding pipe sections in the actual server liquid cooling system.

[0031] Moreover, the end of the main pipe section 30 away from the cold plate 10 and the end of the test section 40 away from the refrigeration mechanism 20 can be selectively connected and conducted through any matching piece 50, and the inner diameters of the matching piece 50, the main pipe section 30, and the test section 40 are different from each other, so that the flow resistance of the circulation test pipeline system of the cold plate flow resistance test system of the server can be adjusted by using matching pieces 50 with different inner diameters. In this way, when the flow resistance of the cold plate 10 does not meet the requirements of the server liquid cooling system, matching pieces 50 with different inner diameters can be used in the circulation test pipeline system of the cold plate flow resistance test system of the server to perform tests to match the flow resistance, so as to select matching pieces 50 with a suitable inner diameter for application in the actual pipeline environment of the server liquid cooling system to meet the flow resistance requirements of the server liquid cooling system.

[0032] When performing flow resistance matching, it can be performed only on a single set of pipeline components, for example, only the main pipe section 30 and the test section 40 in the liquid supply pipeline component are connected through the matching piece 50, while the main pipe section 30 and the test section 40 in the liquid return pipeline component are directly connected (i.e., no matching piece 50 is provided between the two); it can also be that only the main pipe section 30 and the test section 40 in the liquid return pipeline component are connected through the matching piece 50, while the main pipe section 30 and the test section 40 in the liquid supply pipeline component are directly connected (i.e., no matching piece 50 is provided between the two). It is also possible to perform flow resistance matching on both sets of pipelines, the main pipe section 30 and the test section 40 in the liquid supply pipeline component are connected through the matching piece 50, and the main pipe section 30 and the test section 40 in the liquid return pipeline component are also connected through the matching piece 50.

[0033] refer to Figure 1 In some embodiments, a pressure sensor 60 is provided on the test section 40 to measure the pressure of the coolant in the test section 40. Specifically, a pressure sensor 60 is provided on each of the test section 40 of the liquid supply pipeline assembly and the test section 40 of the liquid return pipeline assembly, and the pressure of the coolant in the test section 40 of the liquid supply pipeline assembly and the pressure of the coolant in the test section 40 of the liquid return pipeline assembly are tested and read respectively, thereby obtaining the pressure difference between the two test sections 40, so as to monitor the pressure change during the flow resistance test and ensure the reliability and accuracy of the flow resistance test.

[0034] refer to Figure 1 In some embodiments, a temperature sensor 70 is provided on the test section 40 for measuring the temperature of the coolant in the test section 40. The test section 40 of the liquid supply pipeline assembly and the test section 40 of the liquid return pipeline assembly are both provided with temperature sensors 70, and the temperature of the coolant in the test section 40 of the liquid supply pipeline assembly and the temperature of the coolant in the test section 40 of the liquid return pipeline assembly are tested and read respectively, thereby obtaining the temperature difference between the two test sections 40, so as to monitor the temperature change during the flow resistance test and ensure the reliability and accuracy of the flow resistance test.

[0035] In some embodiments, a cold plate flow resistance testing system for a server includes a thermal insulation component, and a liquid supply pipeline assembly and a liquid return pipeline assembly are respectively located in the thermal insulation component to perform thermal insulation treatment on the liquid supply pipeline assembly and the liquid return pipeline assembly.

[0036] Specifically, the thermal insulation component is a thermal insulation material layer, and the thermal insulation material layer can be used to wrap the pipeline for thermal insulation treatment to ensure the temperature of the circulating medium is stable. The thermal insulation component can also be a thermal insulation sleeve and other structures, which are not limited.

[0037] refer to Figure 1 In some embodiments, the cold plate flow resistance testing system for a server further includes a first flow meter 80, which is disposed at one end of the test section 40 of the liquid supply pipeline assembly close to the refrigeration mechanism 20, so that the first flow meter 80 is close to the liquid outlet interface of the refrigeration mechanism 20, so that when the flow is adjusted by the flow regulating valve on the refrigeration mechanism 20, the flow is controlled by observing the value change of the first flow meter 80.

[0038] refer to Figure 1 In some embodiments, the cold plate flow resistance test system for a server further includes a second flow meter 90, which is disposed on the test section 40 of the liquid supply pipeline assembly to measure the flow of the test section 40. The first flow meter 80 is closer to the refrigeration mechanism 20 than the second flow meter 90. By providing the second flow meter 90, it is possible to perform synchronous calibration with the first flow meter 80 to ensure the accuracy of the measurement and the reliability of the flow resistance test process.

[0039] In some embodiments, the first flow meter 80 and the second flow meter 90 have different specifications. Since the first flow meter 80 and the second flow meter 90 have different specifications, for example, the second flow meter 90 has higher accuracy, after the flow is controlled by the first flow meter 80, the flow change during the flow resistance test can be more accurately observed by the second flow meter 90.

[0040] refer to Figure 1 In some embodiments, a cold plate flow resistance test system for a server includes a heat source dummy load 100, and a cold plate 10 is locked on the heat source dummy load 100, so that the heat source dummy load 100 can be used to perform a heat dissipation test on the cold plate 10, thereby achieving simultaneous flow resistance testing and heat dissipation performance testing on the cold plate 10.

[0041] Preferably, the heat source dummy load 100 is designed to be consistent with the board size and heat source of the actual server to ensure the reliability of the heat dissipation test. Through the heat source dummy load 100 and the heating module, the thermocouple is attached, and the locking condition is consistent with the real server. The thermal interface material consistent with the real machine is attached between the cold plate 10 and the heating module. After the platform is turned on, the real temperature of each heating module can be actually measured.

[0042] In some embodiments, the cold plate flow resistance test system for a server includes a quick-connect connector, which includes a male connector and a female connector. One of the male connector and the female connector is provided at one end of the main pipe section 30, and the other is provided at the water supply port or the water return port of the cold plate 10. The main pipe section 30 and the cold plate 10 are connected by plugging the male connector and the female connector, which is convenient for connection, and the connection is sealed to prevent liquid leakage from affecting the test results.

[0043] Preferably, the female connector is provided on the cold plate 10, and the male connector is provided on the main pipe section 30. The water supply port of the cold plate 10 is provided with a female connector, which cooperates with the male connector of the main pipe section 30 of the liquid supply pipeline assembly. The water return port of the cold plate 10 is provided with a female connector, which cooperates with the male connector of the main pipe section 30 of the liquid return pipeline assembly.

[0044] In some embodiments, the cold plate flow resistance test system for the server includes a chuck (not shown), the matching piece 50 is connected to the main pipe section 30 by the chuck, the matching piece 50 is connected to the test section 40 by the chuck, and the test section 40 is connected to the refrigeration mechanism 20 by the chuck, which is convenient for connection and seals the connection to prevent liquid leakage from affecting the test results. The matching piece 50 is connected to the main pipe section 30 by the chuck, and the matching piece 50 is connected to the test section 40 by the chuck, which can facilitate the connection test of the matching piece 50.

[0045] In the prior art, clamps or sealing tapes are used at various pipes and interfaces for sealing connection, which is prone to the problem of liquid leakage.

[0046] The embodiment of the present application provides a quick-insert connector or a chuck to connect between the pipes, thereby improving the test results affected by liquid leakage caused by improper operation when sealing and connecting with sealing tape or a clamp. The quick-insert connector and the chuck are highly stable, ensuring stability during the flow resistance test, and are easy to operate.

[0047] refer to Figure 2 and Figure 3 In one embodiment, the matching piece 50 includes a matching tube 51 and a connecting disk 52 connected to the matching tube, and the connecting disks 52 are respectively provided at both ends of the matching tube 51. The connecting disk 52 and the matching tube 51 can be integrally formed. One end of the connecting disk 52 close to the matching tube 51 is adapted to the outer diameter of the matching tube, and the other end is used to fit with the end face of the chuck. The inner diameter of the connecting disk 52 is consistent with the inner diameter of the matching tube 51. Along the direction in which the connecting disk 52 moves away from the matching tube 51, the outer diameter of the connecting disk 52 gradually expands, so that the outer diameter of the end of the connecting disk 52 that fits with the chuck is larger, which is convenient for stable fitting and connection with the end face of the chuck. In this embodiment, the matching pieces 50 with different inner diameters specifically refer to that the inner diameters of the matching tubes 51 of each matching piece 50 are different.

[0048] In another embodiment, the outer diameter of the connecting disk may also be uniform and larger than the outer diameter of the matching tube.

[0049] In other embodiments, the matching piece is not limited to the above structure and may also adopt other structural forms.

[0050] When the cold plate flow resistance test system for servers of the present application is used for flow resistance test, the first flow meter 80 and the second flow meter 90 are calibrated before the test (calibration can be performed using the weighing method), and then the flow rate is controlled to the design value of the cold plate 10, and the outlet temperature of the refrigeration mechanism 20 is set. The coolant flows out through the first flow meter 80 near the liquid supply port of the refrigeration mechanism 20 to control the flow rate, flow into the test section 40 of the liquid supply pipeline assembly, pass through the temperature sensor 70 and the pressure sensor 60, flow to the main section 30 of the liquid supply pipeline assembly, and then flow into the cold plate 10. After flowing out of the cold plate 10, it flows through the main section 30 of the return liquid pipeline assembly to the test section 40 of the return liquid pipeline, and flows back to the refrigeration mechanism 20 through the temperature sensor 70 and the pressure sensor 60 on the return liquid pipeline assembly. In this process, the cold plate 10 is locked on the heat source dummy load 100, so that a synchronous heat dissipation test can be performed. Turn on the heat source dummy load 100, and when the working condition is stable, the flow resistance of the entire system can be converted by reading the temperature sensor 70 and the pressure sensor 60 on the two sets of pipeline components. The system pipeline condition is close to the circulation system condition of the entire server real machine, and the influence of the actual temperature rise is taken into account. The size and specifications of the cold plate 10 tested in this application have a wide range of applications, and there is almost no size limit in theory. The matching heat dissipation heat source dummy load 100 can be made according to the actual size.

[0051] Furthermore, the flow resistance of a single cold plate 10, a single circulation pipeline, the entire system pipeline, and a single valve component can be actually measured by removing the cold plate 10 and short-circuiting the pipeline, the joint, and the matching parts, which provides a lot of room for convenience and accuracy in matching the flow resistance of the whole machine. It can meet the flow resistance matching work at the level of a single cold plate 10 or the entire flow resistance test system, because the entire test circulation pipeline system is consistent with the real machine system, so the corresponding matching work can be completed by replacing different flow resistance matching parts for test adaptation in the flow resistance matching area, which has the advantages of being fast, convenient, and accurate.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A cold plate flow resistance test system for a server, characterized in that: include: A cold plate, a refrigeration mechanism, a liquid supply pipeline assembly and a liquid return pipeline assembly; each set of pipeline assemblies in the liquid supply pipeline assembly and the liquid return pipeline assembly includes a main pipe section, a test section and a plurality of matching parts with different inner diameters, one end of the main pipe section is connected to the cold plate, one end of the test section is connected to the refrigeration mechanism, one end of the main pipe section away from the cold plate and one end of the test section away from the refrigeration mechanism can be selectively directly connected or connected through any of the matching parts, the inner diameters of the matching parts, the main pipe section and the test section are different, and the inner diameters of the main pipe section and the test section are adapted to the inner diameters of the corresponding pipe sections in the server liquid cooling system.

2. The cold plate flow resistance test system for a server according to claim 1, characterized in that: The test section is provided with a pressure sensor for measuring the pressure of the coolant in the test section.

3. The cold plate flow resistance test system for a server according to claim 1, characterized in that: The test section is provided with a temperature sensor for measuring the temperature of the coolant in the test section.

4. The cold plate flow resistance test system for a server according to claim 1, characterized in that: It also includes a thermal insulation component, and the liquid supply pipeline component and the liquid return pipeline component are respectively located in the thermal insulation component.

5. The cold plate flow resistance test system for a server according to claim 1, characterized in that: It also includes a first flow meter, which is arranged at one end of the test section of the liquid supply pipeline assembly close to the refrigeration mechanism and is used to control the liquid supply flow rate.

6. The cold plate flow resistance test system for a server according to claim 5, characterized in that: It also includes a second flow meter, which is arranged in the test section of the liquid supply pipeline assembly and is used to measure the flow of the coolant in the test section and is used to perform synchronous calibration with the first flow meter.

7. The cold plate flow resistance test system for a server according to claim 1, characterized in that: A heat source dummy load is also included, and the cold plate is locked to the heat source dummy load.

8. The cold plate flow resistance test system for a server according to claim 1, characterized in that: It includes a quick-plug connector, which includes a male head and a female head. One of the male head and the female head is arranged at one end of the main pipe section, and the other is arranged at the water supply port or the return port of the cold plate. The main pipe section and the cold plate are connected by plugging the male head and the female head.

9. The cold plate flow resistance test system for a server according to claim 1, characterized in that: It also includes a chuck, through which the test section is connected to the refrigeration mechanism; the matching piece is connected to the main section through the chuck, and the matching piece is connected to the test section through the chuck, for connection testing of the matching section.

10. The cold plate flow resistance test system for a server according to claim 9, characterized in that: The matching piece includes a matching tube and a connecting plate connected to the matching tube, and the connecting plates are respectively provided at both ends of the matching tube; one end of the connecting plate close to the matching tube is adapted to the outer diameter of the matching tube, and the other end is used to fit with the end surface of the chuck; the inner diameter of the connecting plate is consistent with that of the matching tube; Wherein, along the direction in which the connecting disk is away from the matching tube, the outer diameter of the connecting disk gradually expands; or, the outer diameter of the connecting disk is uniform and larger than the outer diameter of the matching tube.

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