Cabinet current sharing test tool, system and method

Abstract

The invention relates to a cabinet current sharing test tool, system and method. The equipment cabinet current sharing test tool is used for being connected with a liquid cooling distribution unit through a pipeline assembly, and comprises a test pipeline which is provided with a liquid inlet end and a liquid outlet end; the flow resistance adjusting part is arranged on the test pipeline; the flow detection part is arranged on the test pipeline; the two ends of the pressure difference measuring part are connected with the testing pipeline respectively, and the pressure difference measuring part is used for measuring the pressure difference between the liquid inlet end and the liquid outlet end. By adopting the equipment cabinet current sharing test tool, the flow distribution uniformity of the pipeline assembly to a plurality of same types of equipment cabinets is realized, the dependence on cold plates of the equipment cabinets is not needed, the test cost is reduced, and the test process is not limited by the research, development and processing processes of the cold plates.

Description

Technical Field

[0001] The present application relates to the technical field of cabinet current sharing test, and in particular to a cabinet current sharing test tool, system and method. Background Art

[0002] The computer room of a data center is usually equipped with different types of cabinets, such as CPU cabinets and GPU cabinets. The CDU (liquid cooling distribution unit) is connected to the distribution units of each cabinet through a pipe assembly. The CDU distributes the cooling medium to the distribution units of each cabinet through the pipe assembly, and the distribution unit of each cabinet then distributes the cooling medium to each cold plate in the cabinet, thereby achieving heat dissipation for each cabinet.

[0003] Cabinets of the same type have the same heat dissipation requirements, so the cooling medium flow rate output from the CDU to the same type of cabinets must be consistent. If the pipeline components are not designed properly, there will be an uneven flow distribution problem for multiple cabinets of the same type, resulting in excessively high operating temperatures for some cabinets.

[0004] In the prior art, after the preliminary processing of the pipeline assembly is completed, the test method for the uniformity of the flow distribution of the pipeline assembly to multiple cabinets of the same type is: connect the CDU to multiple cabinets of the same type through the pipeline assembly, and install flow meters on the pipelines corresponding to the multiple cabinets of the same type. The cooling medium flow input to each cabinet is read by each flow meter to determine whether the flow to multiple cabinets of the same type is evenly distributed. If the flow distribution of multiple cabinets of the same type is uneven, the design of the pipeline assembly needs to be adjusted and retested until the flow distribution of the multiple cabinets of the same type is even.

[0005] The disadvantage of this testing method is that the cooling medium entering each cabinet needs to be diverted to each cold plate of the cabinet through a diversity unit before testing can be carried out. Therefore, it must rely on the cold plate of the cabinet, resulting in high testing costs. Moreover, testing can only be carried out after the cold plate is developed and processed and manufactured, which greatly limits the testing process. Summary of the invention

[0006] Based on this, it is necessary to provide a cabinet current equalization test tool, system and method to address the problem that the cabinet current equalization test method in the prior art must rely on the cold plate of the cabinet, resulting in high testing costs and limited testing process.

[0007] A cabinet current balancing test fixture is used to connect to a liquid cooling distribution unit through a pipeline assembly, wherein the pipeline assembly has a plurality of liquid supply ports and a plurality of liquid return ports, and the cabinet current balancing test fixture comprises:

[0008] A test pipeline, comprising a liquid inlet end and a liquid outlet end, wherein the liquid inlet end is used to be connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end is used to be connected to the corresponding liquid return port on the pipeline assembly;

[0009] A flow resistance adjusting unit, disposed on the test pipeline and used to adjust the flow resistance of the test pipeline;

[0010] a flow detection unit, disposed on the test pipeline and used to detect the flow of the cooling medium in the test pipeline; and

[0011] A pressure difference measuring part, both ends of which are connected to the test pipeline respectively, and is used to measure the pressure difference between the liquid inlet end and the liquid outlet end.

[0012] In one embodiment, the flow resistance adjusting part is a regulating valve.

[0013] In one embodiment, the flow detection unit is a flow meter.

[0014] In one embodiment, the differential pressure measuring unit is a differential pressure sensor.

[0015] In one embodiment, the test pipeline comprises:

[0016] A transition pipe, the transition pipe comprising a horizontal pipe section, a first vertical pipe section and a second vertical pipe section, one end of the first vertical pipe section and one end of the second vertical pipe section are respectively connected to two ends of the horizontal pipe section, the first vertical pipe section and the second vertical pipe section extend in parallel, and both are perpendicular to the horizontal pipe section;

[0017] a first straight pipe section, wherein the first straight pipe section and the first vertical pipe section extend in the same direction, the flow detection section is connected between the first straight pipe section and the first vertical pipe section, and an end of the first straight pipe section away from the flow detection section is the liquid inlet end; and

[0018] The second straight pipe section has the same extension direction as the second vertical pipe section, the flow resistance adjusting part is connected between the second straight pipe section and the second vertical pipe section, and the end of the second straight pipe section away from the flow resistance adjusting part is the liquid outlet end.

[0019] In one embodiment, the test pipeline further includes a third straight pipe segment, one end of the third straight pipe segment is connected to an end of the first vertical pipe segment away from the horizontal pipe segment, and the other end of the third straight pipe segment is connected to the flow detection unit.

[0020] In one embodiment, a first joint is provided on the first straight pipe section, and a second joint is provided on the second straight pipe section; one end of the differential pressure measuring unit is connected to the first joint, and the other end of the differential pressure measuring unit is connected to the second joint.

[0021] In one embodiment, the cabinet current sharing test tool further includes a fixing bracket, on which a first fixing portion for fixing the first straight pipe section and a second fixing portion for fixing the second straight pipe section are provided.

[0022] In one embodiment, the cabinet current equalization test tool also includes a position adjustment part, and the first fixing part and the second fixing part are respectively arranged on the position adjustment part; the position adjustment part is connected to the fixed bracket and can adjust the position along a first direction relative to the fixed bracket, and the first direction is parallel to the extension direction of the first vertical pipe section and the second vertical pipe section.

[0023] A cabinet current balancing test system comprises the cabinet current balancing test tool described in any one of the above embodiments, wherein the number of the cabinet current balancing test tool is multiple.

[0024] In one embodiment, the cabinet current balancing test system further includes a calibration tool, and the calibration tool includes:

[0025] A liquid storage container, used for storing a cooling medium;

[0026] a calibration pipeline connected to the test pipeline so that the liquid inlet end of the test pipeline can receive the cooling medium from the liquid storage container, and the cooling medium at the liquid outlet end of the test pipeline can flow back into the liquid storage container;

[0027] A circulation power unit, arranged on the calibration pipeline, for driving the cooling medium to circulate along the calibration pipeline, the test pipeline and the liquid storage container;

[0028] The flow regulating part is arranged on the calibration pipeline.

[0029] A cabinet current balancing test method is used to test the flow distribution uniformity of a pipeline component to multiple cabinets of the same type. The cabinet current balancing test method comprises the following steps:

[0030] Provide a cabinet current sharing test tool as described in any one of the above embodiments;

[0031] Calibrate the plurality of cabinet current sharing test fixtures respectively, so that when the flow rate detected by the flow detection unit of each cabinet current sharing test fixture after calibration is the calibrated flow rate, the pressure difference detected by the pressure difference measurement unit is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the cabinets of the same type at the calibrated flow rate;

[0032] A plurality of the cabinet flow-sharing test fixtures are respectively connected to the liquid cooling distribution unit through the pipeline assembly, wherein the liquid inlet end is connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end is connected to the corresponding liquid return port on the pipeline assembly.

[0033] The above-mentioned cabinet flow-sharing test fixture, system and method, when testing the uniformity of flow distribution of multiple cabinets of the same type by the pipeline assembly, first provide multiple cabinet flow-sharing test fixtures. Then calibrate the multiple cabinet flow-sharing test fixtures respectively, so that when the flow value detected by the flow detection unit 130 of each cabinet flow-sharing test fixture after calibration is the calibrated flow, the pressure difference value detected by the pressure difference measurement unit 140 is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the above-mentioned cabinets of the same type at the calibrated flow. In this way, the multiple cabinet flow-sharing test fixtures can be used to simulate the actual flow resistance of the above-mentioned multiple cabinets of the same type at the calibrated flow. Then connect the multiple cabinet flow-sharing test fixtures to the liquid cooling distribution unit through the pipeline assembly respectively, wherein the liquid inlet end 101 of the test pipeline 110 is connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end 102 of the test pipeline 110 is connected to the corresponding liquid return port on the pipeline assembly. The liquid cooling distribution unit can distribute the cooling medium to each cabinet flow-sharing test fixture through the pipeline assembly to circulate the cooling medium, which simulates the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly to circulate the cooling medium. In this way, by reading the detection results of the flow detection unit 130 of each cabinet flow-sharing test fixture, it can be determined whether the flow distributed by the pipeline assembly to each cabinet flow-sharing test fixture is uniform, that is, whether the flow distribution of the pipeline assembly to multiple cabinets of the same type is uniform.

[0034] It can be seen that the above-mentioned cabinet current balancing test system and cabinet current balancing test method can simulate the flow resistance of a real cabinet at the calibrated flow rate by using a cabinet current balancing test tool. When multiple cabinet current balancing test tools are respectively connected to the liquid cooling distribution unit through the pipeline assembly, the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly for cooling medium circulation can be simulated, so that by reading the detection results of the flow detection unit 130 of each cabinet current balancing test tool, it can be determined whether the flow distribution of the pipeline assembly to multiple cabinets of the same type is uniform. The above-mentioned cabinet current balancing test tool is used to test the uniformity of the flow distribution of the pipeline assembly to multiple cabinets of the same type, without relying on the cold plate of the cabinet, which reduces the testing cost, and the testing process is not limited by the cold plate research and development and processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic diagram of the structure of a cabinet current sharing test tool according to an embodiment.

[0036] Figure 2The figure is a schematic diagram of the connection structure between a cabinet current sharing test tool and a calibration tool according to an embodiment.

[0037] Figure 3 The figure is a schematic diagram of the connection structure of a fixing bracket, a first fixing part, a second fixing part, and a position adjustment part according to an embodiment.

[0038] Figure 4 The present invention is a structural schematic diagram of a cabinet current sharing test method according to an embodiment.

[0039] Description of reference numerals:

[0040] 110, test pipeline; 101, liquid inlet end; 102, liquid outlet end; 111, transfer tube; 1111, horizontal pipe section; 1112, first vertical pipe section; 1113, second vertical pipe section; 112, first straight pipe section; 1121, first joint; 113, second straight pipe section; 1131, second joint; 114, third straight pipe section; 120, flow resistance adjustment part; 130, flow detection part; 140, pressure difference measurement part; 150, exhaust part; 160, fixed bracket; 161, first fixed part; 162, second fixed part; 163, adjustment part; 1631, connection hole; 164, strip hole;

[0041] 210, liquid storage container; 220, calibration pipeline; 230, circulation power unit; 240, flow regulating unit; 250, filter. DETAILED DESCRIPTION

[0042] 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.

[0043] 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.

[0044] 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. Thus, 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, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] In the related art, the CDU (liquid cooling distribution unit) is connected to the diversity units of each cabinet through a pipe assembly. The pipe assembly has multiple liquid supply ports and multiple liquid return ports. The diversity unit of each cabinet has a liquid inlet end and a liquid outlet end. The liquid supply port and the liquid return port of the pipe assembly are arranged corresponding to the cabinet. Specifically, the liquid inlet end of the diversity unit of the cabinet is connected to the corresponding liquid supply port, and the liquid outlet end of the diversity unit of the cabinet is connected to the corresponding liquid return port. In this way, after the cooling medium enters the corresponding cabinet's diversity unit from the liquid supply port of the pipe assembly, the diversity unit distributes the cooling medium to each cold plate in the cabinet, and then flows back from the liquid outlet end of the diversity unit to the corresponding liquid return port, and then returns to the CDU through the pipe assembly to realize the circulation of the cooling medium.

[0049] Please refer to Figure 1 An embodiment of the present application provides a cabinet current sharing test tool, which is used to connect to a liquid cooling distribution unit through a pipeline assembly, and the pipeline assembly has multiple liquid supply ports and multiple liquid return ports.

[0050] Recombination Figure 2 The cabinet current sharing test tool includes: a test pipeline 110, a flow resistance adjustment unit 120, a flow detection unit 130 and a pressure difference measurement unit 140.

[0051] The test pipeline 110 has a liquid inlet end 101 and a liquid outlet end 102 . The liquid inlet end 101 is used to connect to a corresponding liquid supply port on the pipeline assembly, and the liquid outlet end 102 is used to connect to a corresponding liquid return port on the pipeline assembly.

[0052] The flow resistance adjusting part 120 is disposed on the test pipeline 110 and is used to adjust the flow resistance of the test pipeline 110. Optionally, the flow resistance adjusting part 120 is a regulating valve.

[0053] The flow detection unit 130 is disposed on the test pipeline 110 and is used to detect the flow of the cooling medium in the test pipeline 110. Optionally, the flow detection unit 130 is a flow meter.

[0054] Both ends of the pressure difference measuring unit 140 are connected to the test pipeline 110 respectively, and are used to measure the pressure difference between the liquid inlet end 101 and the liquid outlet end 102. Optionally, the pressure difference measuring unit 140 is a pressure difference sensor.

[0055] When testing the uniformity of flow distribution of multiple cabinets of the same type by the pipeline assembly, first provide multiple cabinet flow equalization test fixtures as mentioned above. Then calibrate the multiple cabinet flow equalization test fixtures respectively, so that when the flow value detected by the flow detection unit 130 of each cabinet flow equalization test fixture after calibration is the calibrated flow, the pressure difference value detected by the pressure difference measurement unit 140 is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the above-mentioned cabinets of the same type at the calibrated flow. In this way, the multiple cabinet flow equalization test fixtures can be used to simulate the actual flow resistance of the above-mentioned multiple cabinets of the same type at the calibrated flow. Then connect the multiple cabinet flow equalization test fixtures to the liquid cooling distribution unit through the pipeline assembly respectively, wherein the liquid inlet end 101 of the test pipeline 110 is connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end 102 of the test pipeline 110 is connected to the corresponding liquid return port on the pipeline assembly. The liquid cooling distribution unit can distribute the cooling medium to each cabinet flow-sharing test fixture through the pipeline assembly to circulate the cooling medium, which simulates the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly to circulate the cooling medium. In this way, by reading the detection results of the flow detection unit 130 of each cabinet flow-sharing test fixture, it can be determined whether the flow distributed by the pipeline assembly to each cabinet flow-sharing test fixture is uniform, that is, whether the flow distribution of the pipeline assembly to multiple cabinets of the same type is uniform.

[0056] It can be seen that the use of the above-mentioned cabinet current balancing test fixture can simulate the flow resistance of the real cabinet at the calibrated flow. When multiple cabinet current balancing test fixtures are respectively connected to the liquid cooling distribution unit through the pipeline assembly, the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly for cooling medium circulation can be simulated, so that by reading the detection results of the flow detection unit 130 of each cabinet current balancing test fixture, it can be determined whether the pipeline assembly distributes the flow uniformly to multiple cabinets of the same type. The above-mentioned cabinet current balancing test fixture is used to test the uniformity of the flow distribution of the pipeline assembly to multiple cabinets of the same type, without relying on the cold plate of the cabinet, which reduces the testing cost, and the testing process is not limited by the cold plate research and development and processing process.

[0057] Furthermore, since the calibrated cabinet current sharing test fixture can satisfy the following conditions: when the flow value detected by the flow detection unit 130 is the calibrated flow, the pressure difference value detected by the pressure difference measurement unit 140 is the calibrated pressure difference. The calibrated pressure difference is the pressure difference corresponding to the flow resistance of the same type of cabinet at the calibrated flow, the cabinet current sharing test fixture can simulate the real flow resistance of the cabinet at the calibrated flow.

[0058] Different types of cabinets have different calibrated flow rates and different flow resistances at calibrated flow rates, that is, the pressure differences corresponding to the flow resistances at calibrated flow rates are also different. By calibrating the cabinet current sharing test fixture to different calibrated flow rates and calibrated pressure differences, the cabinet current sharing test fixture can simulate the actual flow resistances of different types of cabinets at the corresponding calibrated flow rates, thereby improving the flexibility and versatility of the cabinet current sharing test fixture.

[0059] Please refer to Figure 2 An embodiment of the present application provides a calibration tool for calibrating the above cabinet current balancing test tool. The calibration tool includes: a liquid storage container 210, a calibration pipeline 220, a circulation power unit 230 and a flow regulating unit 240.

[0060] The liquid storage container 210 is used to store the cooling medium.

[0061] The calibration line 220 is connected to the test line 110 so that the liquid inlet 101 of the test line 110 can receive the cooling medium from the liquid storage container 210 and the cooling medium at the liquid outlet 102 of the test line 110 can flow back into the liquid storage container 210 .

[0062] The circulation power unit 230 is disposed on the calibration pipeline 220, and is used to drive the cooling medium to circulate along the calibration pipeline 220, the test pipeline 110, and the liquid storage container 210. Optionally, the circulation power unit 230 is a liquid power pump.

[0063] The flow regulating part 240 is disposed on the calibration pipeline 220. Optionally, the flow regulating part 240 is a regulating valve.

[0064] When the circulation power unit 230 is working, it drives the cooling medium to flow from the liquid storage container 210 to the calibration pipeline 220, and flows from the calibration pipeline 220 into the liquid inlet end 101 of the test pipeline 110, and after flowing through the test pipeline 110, it flows back to the liquid storage container 210 from the liquid outlet end 102 of the test pipeline 110, thereby realizing the circulation of the cooling medium.

[0065] exist Figure 1 and Figure 2 In the embodiment shown, the liquid inlet of the calibration pipeline 220 is connected to the liquid supply port of the liquid storage container 210, and the liquid outlet of the calibration pipeline 220 is connected to the liquid inlet 101 of the test pipeline 110. At this time, the liquid outlet 102 of the pipeline 110 is connected to the liquid return port of the liquid storage container 210.

[0066] In other embodiments, the calibration pipeline can also be divided into a liquid supply section and a liquid return section, the liquid inlet end of the liquid supply section is connected to the liquid supply port of the liquid storage container, and the liquid outlet end of the liquid supply section is connected to the liquid inlet end of the test pipeline. The liquid inlet end of the liquid return section is connected to the liquid outlet end of the test pipeline, and the liquid outlet end of the liquid return section is connected to the liquid return port of the liquid storage container.

[0067] The calibration method of the calibration tool for the cabinet current sharing test tool is as follows:

[0068] S210: firstly adjust the flow regulating part 240 to a first flow opening, and adjust the flow resistance regulating part 120 to a first flow resistance;

[0069] S220: operating the circulation power unit 230 to circulate the cooling medium;

[0070] S230: The flow resistance of the flow resistance adjusting unit 120 is gradually increased, and the flow value measured by the flow detection unit 130 will gradually decrease, while the pressure difference value measured by the pressure difference measuring unit 140 will gradually increase.

[0071] S231: When the pressure difference value measured by the pressure difference measuring part 140 reaches the calibrated pressure difference, but the flow value measured by the flow detection part 130 is less than the calibrated flow, it is necessary to increase the flow of the flow regulating part 240 and reduce the flow resistance of the flow resistance regulating part 120; until the flow value detected by the flow detection part 130 is the calibrated flow and the pressure difference value detected by the pressure difference measuring part 140 is the calibrated pressure difference.

[0072] S232: When the pressure difference value measured by the pressure difference measuring part 140 reaches the calibrated pressure difference, but the flow value measured by the flow detection part 130 is greater than the calibrated flow, it is necessary to reduce the flow of the flow regulating part 240 and increase the flow resistance of the flow resistance regulating part 120; until the flow value detected by the flow detection part 130 is the calibrated flow and the pressure difference value detected by the pressure difference measuring part 140 is the calibrated pressure difference.

[0073] The cabinet current equalization test fixture is calibrated by the above-mentioned calibration method until the flow value detected by the flow detection unit 130 is the calibrated flow, and the pressure difference value detected by the pressure difference measurement unit 140 is the calibrated pressure difference. Then, the cabinet current equalization test fixture can simulate the actual flow resistance of the cabinet at the calibrated flow, and the calibration is completed.

[0074] Among them, the calibrated flow is the cooling medium flow that is expected to be distributed when the cabinet is actually running. The calibrated pressure difference is the pressure difference corresponding to the actual flow resistance of the cabinet at the calibrated flow. When calibrating the cabinet flow test fixture, the calibrated flow and calibrated pressure difference can be set according to actual needs. The first flow opening and the first flow resistance can also be set according to the calibration situation.

[0075] Please refer to Figure 2 In one embodiment, the calibration tool further includes a filter 250, which is disposed on the calibration pipeline 220 and located between the liquid storage container 210 and the circulating power unit 230. The filter 250 is used to filter impurities in the cooling medium to avoid damage to the circulating power unit 230 and to avoid damage to the cabinet current balancing test tool.

[0076] Please refer to Figure 1 In one embodiment, the test pipe 110 includes a transfer pipe 111 , a first straight pipe section 112 , and a second straight pipe section 113 .

[0077] The adapter tube 111 includes a transverse tube section 1111, a first vertical tube section 1112, and a second vertical tube section 1113. One end of the first vertical tube section 1112 and one end of the second vertical tube section 1113 are respectively connected to the two ends of the transverse tube section 1111. The extension directions of the first vertical tube section 1112 and the second vertical tube section 1113 are parallel, and both are perpendicular to the transverse tube section 1111. Optionally, the adapter tube 111 is an integrally formed structure. In actual use, the extension direction of the transverse tube section 1111 can be in the horizontal direction, and the extension directions of the first vertical tube section 1112 and the second vertical tube section 1113 can be in the vertical direction.

[0078] The first straight pipe section 112 and the first vertical pipe section 1112 extend in the same direction. The flow detection unit 130 is connected between the first straight pipe section 112 and the first vertical pipe section 1112 . The end of the first straight pipe section 112 away from the flow detection unit 130 is the liquid inlet end 101 .

[0079] The second straight pipe section 113 and the second vertical pipe section 1113 extend in the same direction, the flow resistance adjustment portion 120 is connected between the second straight pipe section 113 and the second vertical pipe section 1113 , and the end of the second straight pipe section 113 away from the flow resistance adjustment portion 120 is the liquid outlet end 102 .

[0080] According to the structure of the test pipeline 110 of this embodiment, the first straight pipe section 112 and the second straight pipe section 113 can be arranged in parallel, so that the liquid inlet end 101 on the first straight pipe section 112 and the liquid outlet end 102 on the second straight pipe section 113 can be conveniently connected to the pipeline assembly respectively.

[0081] Furthermore, the flow detection part 130 is connected between the first straight pipe section 112 and the first vertical pipe section 1112, and the flow resistance adjustment part 120 is connected between the second straight pipe section 113 and the second vertical pipe section 1113. When the flow detection part 130 of different specifications and models is replaced, resulting in a change in the length of the flow detection part 130, the position of the liquid inlet end 101 on the first straight pipe section 112 will be changed, affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly. In this embodiment, the position of the liquid inlet end 101 on the first straight pipe section 112 can be kept in place by adaptively replacing the first straight pipe section 112 of different lengths, thereby avoiding affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly; and there is no need to replace the entire test pipeline 110, saving pipeline costs.

[0082] Similarly, when the flow resistance adjusting part 120 of different specifications and models is replaced, resulting in a change in the length of the flow resistance adjusting part 120, the position of the liquid outlet 102 on the second straight pipe section 113 will be changed, affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly. In this embodiment, the position of the liquid outlet 102 on the second straight pipe section 113 can be kept in place by adaptively replacing the second straight pipe section 113 of different lengths, thereby avoiding affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly; and there is no need to replace the entire test pipeline 110, saving pipeline costs.

[0083] Please refer to Figure 1 In one embodiment, the test pipeline 110 also includes a third straight pipe section 114 , one end of the third straight pipe section 114 is connected to an end of the first vertical pipe section 1112 away from the horizontal pipe section 1111 , and the other end of the third straight pipe section 114 is connected to the flow detection unit 130 .

[0084] In this embodiment, when the flow detection unit 130 of different specifications and models is replaced, resulting in a change in the length of the flow detection unit 130, the position of the liquid inlet end 101 on the first straight pipe section 112 will be changed, affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly. In this embodiment, the position of the liquid inlet end 101 on the first straight pipe section 112 can be kept in place by adaptively replacing the third straight pipe section 114 of different lengths, avoiding affecting the connection between the test pipeline 110 and the calibration tool or the connection with the pipeline assembly; and there is no need to replace the entire test pipeline 110, saving pipeline costs.

[0085] Please refer to Figure 1 In one embodiment, the first straight pipe section 112 is provided with a first joint 1121 , and the second straight pipe section 113 is provided with a second joint 1131 . One end of the differential pressure measuring unit 140 is connected to the first joint 1121 , and the other end of the differential pressure measuring unit 140 is connected to the second joint 1131 .

[0086] In this embodiment, the first straight pipe section 112 and the second straight pipe section 113 are arranged in parallel, so that the positions of the first joint 1121 and the second joint 1131 can be close, thereby facilitating the connection between the pressure difference measuring unit 140 and the first joint 1121 and the second joint 1131.

[0087] Both the first connector 1121 and the second connector 1121 can be quick-connect connectors, which are convenient for connection with the differential pressure measuring unit 140 .

[0088] Please refer to Figure 1 and Figure 2In one embodiment, the test pipeline 110 is further provided with an exhaust portion 150 for exhausting the gas in the test pipeline 110 to prevent the gas in the test pipeline 110 from affecting the test result during the test. Optionally, the exhaust portion 150 is an exhaust valve.

[0089] In any of the above embodiments, any two adjacent pipelines, a first chuck is provided at the end of one pipeline, and a second chuck is provided at the end of the other pipeline, the two pipelines are opposite and connected through the first chuck and the second chuck, and a sealing gasket is provided between the first chuck and the second chuck to ensure sealing.

[0090] The flow detection part 130 is provided with a chuck at both ends, the flow detection part 130 is connected to the adjacent pipeline through the chuck, and a sealing gasket is provided between the two chucks. The flow resistance adjustment part 120 is provided with a chuck at both ends, the flow resistance adjustment part 120 is connected to the adjacent pipeline through the chuck, and a sealing gasket is provided between the two chucks.

[0091] Please refer to Figure 3 In one embodiment, the cabinet current balancing test tool further includes a fixing bracket 160 , on which a first fixing portion 161 for fixing the first straight pipe section 112 and a second fixing portion 162 for fixing the second straight pipe section 113 are provided.

[0092] The number of the first fixing portion 161 may be one, or two or more. The number of the second fixing portion 162 may be one, or two or more.

[0093] Specifically, the first fixing portion 161 may be a clamp for clamping the first straight pipe section 112 . The second fixing portion 162 may be a clamp for clamping the second straight pipe section 113 .

[0094] In other embodiments, the first fixing portion 161 and the second fixing portion 162 are not limited to clamps, but may also be other forms of fixing structures.

[0095] Please refer to Figure 3 In one embodiment, the cabinet current balancing test tool further includes a position adjustment portion 163, and the first fixing portion 161 and the second fixing portion 162 are respectively arranged on the position adjustment portion 163. The position adjustment portion 163 is connected to the fixing bracket 160 and can adjust the position relative to the fixing bracket 160 along a first direction, and the first direction is parallel to the extension direction of the first vertical pipe section 1112 and the second vertical pipe section 1113.

[0096] By changing the position of the position adjusting portion 163 along the first direction relative to the fixing bracket 160, the position of the test pipe 110 along the first direction can be changed, thereby facilitating the test pipe 110 to be adjusted to a suitable position according to the use environment. In actual use, the first direction can be along the vertical direction.

[0097] An embodiment of the present application further provides a cabinet current balancing test system, comprising a cabinet current balancing test tool of any of the above embodiments, wherein the number of cabinet current balancing test tools is multiple.

[0098] In one embodiment, the cabinet current sharing test system further includes the calibration tool of any one of the above embodiments.

[0099] An embodiment of the present application also provides a cabinet current distribution test method, which is used to test the flow distribution uniformity of a pipeline assembly to multiple cabinets of the same type. The cabinet current distribution test method includes the following steps:

[0100] S100: Provide multiple cabinet current sharing test tools according to any one of the above embodiments.

[0101] S200: Calibrate multiple cabinet current sharing test fixtures respectively so that when the flow rate detected by the flow detection unit 130 of each cabinet current sharing test fixture after calibration is the calibrated flow rate, the pressure difference detected by the pressure difference measurement unit 140 is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the same type of cabinet at the calibrated flow rate.

[0102] S300: Connect multiple cabinet current sharing test fixtures to the liquid cooling distribution unit through pipeline components, wherein the liquid inlet end 101 is connected to the corresponding liquid supply port on the pipeline component, and the liquid outlet end 102 is connected to the corresponding liquid return port on the pipeline component.

[0103] The above-mentioned cabinet current balancing test system and cabinet current balancing test method, when testing the uniformity of flow distribution of multiple cabinets of the same type by the pipeline assembly, first provide multiple cabinet current balancing test fixtures. Then calibrate the multiple cabinet current balancing test fixtures respectively, so that when the flow value detected by the flow detection unit 130 of each cabinet current balancing test fixture after calibration is the calibrated flow, the pressure difference value detected by the pressure difference measurement unit 140 is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the above-mentioned cabinets of the same type at the calibrated flow. In this way, the multiple cabinet current balancing test fixtures can be used to simulate the actual flow resistance of the above-mentioned multiple cabinets of the same type at the calibrated flow. Then connect the multiple cabinet current balancing test fixtures to the liquid cooling distribution unit through the pipeline assembly respectively, wherein the liquid inlet end 101 of the test pipeline 110 is connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end 102 of the test pipeline 110 is connected to the corresponding liquid return port on the pipeline assembly. The liquid cooling distribution unit can distribute the cooling medium to each cabinet flow-sharing test fixture through the pipeline assembly to circulate the cooling medium, which simulates the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly to circulate the cooling medium. In this way, by reading the detection results of the flow detection unit 130 of each cabinet flow-sharing test fixture, it can be determined whether the flow distributed by the pipeline assembly to each cabinet flow-sharing test fixture is uniform, that is, whether the flow distribution of the pipeline assembly to multiple cabinets of the same type is uniform.

[0104] It can be seen that the above-mentioned cabinet current balancing test system and cabinet current balancing test method can simulate the flow resistance of a real cabinet at the calibrated flow rate by using a cabinet current balancing test tool. When multiple cabinet current balancing test tools are respectively connected to the liquid cooling distribution unit through the pipeline assembly, the actual state of the liquid cooling distribution unit distributing the cooling medium to each cabinet through the pipeline assembly for cooling medium circulation can be simulated, so that by reading the detection results of the flow detection unit 130 of each cabinet current balancing test tool, it can be determined whether the flow distribution of the pipeline assembly to multiple cabinets of the same type is uniform. The above-mentioned cabinet current balancing test tool is used to test the uniformity of the flow distribution of the pipeline assembly to multiple cabinets of the same type, without relying on the cold plate of the cabinet, which reduces the testing cost, and the testing process is not limited by the cold plate research and development and processing process.

[0105] Furthermore, different types of cabinets have different calibrated flow rates, and different flow resistances at calibrated flow rates, that is, the pressure differences corresponding to the flow resistances at calibrated flow rates are also different. By calibrating the cabinet current balancing test fixture to different calibrated flow rates and calibrated pressure differences, the cabinet current balancing test fixture can simulate the actual flow resistances of different types of cabinets at the corresponding calibrated flow rates, thereby improving the flexibility and versatility of the cabinet current balancing test fixture.

[0106] 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.

[0107] 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 cabinet current balancing test fixture, used to connect to a liquid cooling distribution unit through a pipeline assembly, wherein the pipeline assembly has multiple liquid supply ports and multiple liquid return ports, characterized in that: The cabinet current sharing test tool comprises: A test pipeline, comprising a liquid inlet end and a liquid outlet end, wherein the liquid inlet end is used to be connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end is used to be connected to the corresponding liquid return port on the pipeline assembly; A flow resistance adjusting unit, disposed on the test pipeline and used to adjust the flow resistance of the test pipeline; a flow detection unit, disposed on the test pipeline and used to detect the flow of the cooling medium in the test pipeline; and A pressure difference measuring part, both ends of which are connected to the test pipeline respectively, and is used to measure the pressure difference between the liquid inlet end and the liquid outlet end.

2. The cabinet current sharing test tool according to claim 1, characterized in that: The flow resistance adjustment part is a regulating valve; and / or, The flow detection unit is a flow meter; and / or, The differential pressure measuring unit is a differential pressure sensor.

3. The cabinet current sharing test tool according to claim 1, characterized in that: The test pipeline comprises: A transition pipe, the transition pipe comprising a horizontal pipe section, a first vertical pipe section and a second vertical pipe section, one end of the first vertical pipe section and one end of the second vertical pipe section are respectively connected to two ends of the horizontal pipe section, the first vertical pipe section and the second vertical pipe section extend in parallel, and both are perpendicular to the horizontal pipe section; a first straight pipe section, wherein the first straight pipe section and the first vertical pipe section extend in the same direction, the flow detection section is connected between the first straight pipe section and the first vertical pipe section, and an end of the first straight pipe section away from the flow detection section is the liquid inlet end; and The second straight pipe section has the same extension direction as the second vertical pipe section, the flow resistance adjusting part is connected between the second straight pipe section and the second vertical pipe section, and the end of the second straight pipe section away from the flow resistance adjusting part is the liquid outlet end.

4. The cabinet current sharing test tool according to claim 3, characterized in that: The test pipeline further includes a third straight pipe section, one end of which is connected to an end of the first vertical pipe section away from the horizontal pipe section, and the other end of the third straight pipe section is connected to the flow detection unit.

5. The cabinet current sharing test tool according to claim 3, characterized in that: The first straight pipe section is provided with a first joint, and the second straight pipe section is provided with a second joint; one end of the pressure difference measuring part is connected to the first joint, and the other end of the pressure difference measuring part is connected to the second joint.

6. The cabinet current sharing test tool according to claim 3, characterized in that: It also includes a fixing bracket, on which a first fixing portion for fixing the first straight pipe section and a second fixing portion for fixing the second straight pipe section are provided.

7. The cabinet current sharing test tool according to claim 6, characterized in that: It also includes a position adjustment part, on which the first fixing part and the second fixing part are respectively arranged; the position adjustment part is connected to the fixing bracket and can adjust the position along a first direction relative to the fixing bracket, and the first direction is parallel to the extension direction of the first vertical pipe section and the second vertical pipe section.

8. A cabinet current sharing test system, characterized in that: It comprises a cabinet current sharing test tool as described in any one of claims 1 to 7, and the number of the cabinet current sharing test tool is multiple.

9. The cabinet current sharing test system according to claim 8, characterized in that: Also included is a calibration tool, the calibration tool comprising: A liquid storage container, used for storing a cooling medium; a calibration pipeline connected to the test pipeline so that the liquid inlet end of the test pipeline can receive the cooling medium from the liquid storage container, and the cooling medium at the liquid outlet end of the test pipeline can flow back into the liquid storage container; A circulation power unit, arranged on the calibration pipeline, for driving the cooling medium to circulate along the calibration pipeline, the test pipeline and the liquid storage container; The flow regulating part is arranged on the calibration pipeline.

10. A cabinet current sharing test method, characterized in that: The cabinet flow distribution test method for testing the flow distribution uniformity of a pipeline assembly to multiple cabinets of the same type includes the following steps: Provide a plurality of cabinet current sharing test tools as described in any one of claims 1 to 7; Calibrate the plurality of cabinet current sharing test fixtures respectively, so that when the flow rate detected by the flow detection unit of each cabinet current sharing test fixture after calibration is the calibrated flow rate, the pressure difference detected by the pressure difference measurement unit is the calibrated pressure difference, wherein the calibrated pressure difference is the pressure difference corresponding to the flow resistance of the cabinets of the same type at the calibrated flow rate; A plurality of the cabinet flow-sharing test fixtures are respectively connected to the liquid cooling distribution unit through the pipeline assembly, wherein the liquid inlet end is connected to the corresponding liquid supply port on the pipeline assembly, and the liquid outlet end is connected to the corresponding liquid return port on the pipeline assembly.

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