Liquid cooling power supply cabinet test tool

Abstract

The invention belongs to the technical field of test equipment, and particularly relates to a liquid cooling power supply case test tool, which comprises a main body frame, a plurality of pairs of guide bars, a plurality of back plate assemblies, a water inlet pipeline and a water outlet pipeline, according to the invention, parallel testing of multiple power supply cases, rapid and accurate push-in installation and automatic alignment and connection of electrical and fluid interfaces are realized, so that the leakage risk of manual butt joint is eliminated, the replacement operation is simplified, the replacement time is greatly shortened, the testing efficiency is remarkably improved, and the testing cost is reduced. And the cooling flow of each power supply case can be independently monitored and accurately adjusted, so that the cooling uniformity and resource utilization optimization during multi-machine testing are ensured, and the reliability of batch aging or environment testing is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of testing equipment technology, specifically relating to a testing fixture for a liquid-cooled power supply chassis. Background Technology

[0002] With the development of the power electronics equipment industry, the demand for high-power-density power supplies is constantly increasing, and the requirements for long-term operational stability and reliability are also constantly rising. Power supply reliability typically needs to be verified through aging tests and environmental tests to ensure performance under long-term operation or extreme conditions. In mass production scenarios, to improve verification efficiency and reduce costs, it is often necessary to test multiple power supplies simultaneously and shorten power supply replacement and preparation time.

[0003] Currently, traditional test fixtures can typically only test a single power supply chassis at a time, and rely on manual connection of liquid cooling pipes, which is complex and time-consuming. Inaccurate connections can also lead to leaks, potentially damaging the equipment and causing test interruptions, affecting test continuity and production efficiency.

[0004] Furthermore, when multiple power supply chassis with different heat outputs are tested simultaneously, the existing tooling cannot independently and accurately control the cooling flow of each power supply, which can easily lead to uneven cooling or waste of resources, resulting in low production efficiency and restricting the testing efficiency and reliability of multi-machine parallel testing. Summary of the Invention

[0005] The purpose of this invention is to provide a liquid-cooled power supply chassis test fixture, which solves the technical problems of low single-unit testing efficiency, complex and time-consuming manual connection of pipelines, and inability to independently and accurately control the cooling flow rate when testing multiple machines in parallel.

[0006] This invention discloses a test fixture for a liquid-cooled power supply chassis, comprising: The main frame is rectangular in shape, with multiple test stations arranged sequentially along the length direction inside, and open on opposite sides in the width direction. Multiple pairs of guide bars correspond one-to-one with the test station. Each pair of guide bars is respectively embedded on the upper and lower sides of the corresponding test station and extends along the width direction of the main frame. The guide bars are provided with guide grooves along the length direction. Multiple backplate assemblies correspond one-to-one with the test station and are all located on the same side of the width direction of the main frame. Each backplate assembly includes a support member and a power socket on the support member. The support member is vertically mounted on the upper and lower sides of the corresponding opening. The water inlet pipeline is located on the side of the back panel assembly away from the main frame. It includes a main water inlet pipe and multiple water inlet branches corresponding to the back panel assembly. Each water inlet branch includes a water inlet branch pipe, a regulating valve, a flow meter, and a water inlet plug. The water inlet branch pipe is connected in series with the regulating valve and is equipped with the flow meter. One end is connected to the main water inlet pipe, and the other end is installed on the support member corresponding to the back panel assembly and connected to the water inlet plug. The water inlet plug passes through the support member. The water outlet pipeline is located on the side of the back panel assembly away from the main frame, and includes a main water outlet pipe and multiple water outlet branches corresponding to the back panel assembly. Each water outlet branch includes a water outlet branch pipe and a water outlet plug. One end of the water outlet branch pipe is connected to the main water outlet pipe, and the other end is installed on the support member corresponding to the back panel assembly and connected to the water inlet plug. The water inlet plug passes through the support member.

[0007] This application enables parallel testing of multiple power supply chassis, rapid and precise push-in installation, and automatic alignment and connection of electrical and fluid interfaces, thereby eliminating the risk of leakage from manual docking, simplifying replacement operations, significantly shortening replacement time, and significantly improving testing efficiency. It also has the ability to independently monitor and precisely adjust the cooling flow of each power supply chassis, ensuring cooling uniformity and optimal resource utilization during multi-machine testing, and significantly improving the reliability of batch aging or environmental testing.

[0008] Based on the above technical solution, the solution of this application can be further improved as follows: Preferably, the support member includes: The docking box has an opening on one side facing the main frame and is adapted to the rear end of the liquid-cooled power supply chassis. It is equipped with the water inlet plug and the water outlet plug inside. Two folded edges are respectively located on the upper and lower sides of the docking box, and are attached to the side of the main frame and can be detachably connected; The docking box has an opening at its bottom. The power socket is installed on the side of the docking box facing away from the main frame, corresponding to the opening and located above the water inlet and outlet plugs. This solution achieves physical isolation between the electrical and fluid interfaces, provides precise guidance for rapid blind insertion, effectively restrains and guides leaking liquid downwards, thus completely avoiding the risk of electrical short circuits caused by coolant splashing. This significantly improves the safety and continuity of the testing process and ensures the efficient and reliable operation of batch tests.

[0009] Preferably, the backplane assembly includes: Several positioning seats penetrate and are fixed to the bottom of the docking box, and correspond one-to-one with the guide pins at the rear end of the liquid-cooled power supply chassis. This solution achieves three-level precise positioning, which can further eliminate minor deviations, ensure that the interface axis is completely aligned, achieve precise correction, and complete zero-error blind mating connection, thereby significantly improving the reliability and consistency of docking.

[0010] Preferably, both the main inlet pipe and the main outlet pipe extend along the length of the main frame, and both the inlet branch pipe and the outlet branch pipe extend along the width of the main frame. This design makes the piping system neatly arranged and compact, reduces pipe crossings and bends, lowers fluid resistance, ensures cooling efficiency, and facilitates installation, maintenance, and troubleshooting. It also ensures the accuracy, stability, and ease of operation of flow control during multi-station parallel testing.

[0011] Preferably, the main frame includes: Two rectangular side panels are arranged parallel to each other at intervals. Four crossbeams are positioned between the two side plates and at the four corners of the side plates, respectively. Eight corner braces are located on the inner sides of both ends of the four crossbeams and connected to the adjacent side plates. This design improves the overall rigidity and structural stability, provides solid physical support, and establishes a reliable and non-deformable precision installation benchmark. It ensures the consistency and durability of the docking accuracy of each test station and guarantees the smoothness and stability of batch testing.

[0012] Preferably, the side plate is provided with a number of evenly arranged hollow grooves; by adopting this solution, while ensuring structural strength, the overall weight and manufacturing cost of the tooling are effectively reduced, thereby improving the practicality and economy of the tooling.

[0013] Preferably, the four crossbeams are divided into two front beams and two rear beams along the width direction of the main frame, and the front beams are located on the side of the side plate away from the back plate assembly; Multiple stops are detachably embedded on the side of the front beam away from the back panel assembly. Each stop is located at the end of the guide bar away from the back panel assembly. Each stop has an inlet groove that communicates with and is aligned with the guide groove of the guide bar. This solution achieves modular protection and quick replacement of the guide inlet. When the inlet is worn due to frequent insertion and removal, only the stops need to be replaced to complete the repair, thus eliminating the need to replace the entire front beam or guide bar, thereby significantly reducing the maintenance cost for long-term use.

[0014] Preferably, it includes: Multiple support components are arranged at intervals along the length of the main frame; The support components include: The base plate extends along the width direction of the main frame; Two supports are respectively located at both ends of the top surface of the base plate and detachably installed on the bottom surface of the main frame. This solution provides a dedicated and reliable clamping interface, which can effectively disperse the clamping force, ensuring both secure installation and isolation of the clamping force outside the main frame, thus guaranteeing the accuracy and stability of long-term use.

[0015] Preferably, the base plate has vertically arranged reinforcing edges on both sides; this solution can effectively resist lateral compression and prevent deformation, ensuring long-term stability and reliability of clamping, while maintaining lightweight while significantly improving structural stability and load-bearing reliability.

[0016] Preferably, it includes: Multiple lifting rings are respectively located at the four corners of the top surface of the main frame. This solution provides a balanced and safe standard lifting interface, ensuring uniform force distribution during tooling handling, effectively protecting the positioning accuracy of internal components, improving handling efficiency and operational safety, and enhancing layout flexibility.

[0017] Through the above technical solution, the present invention achieves the following beneficial effects: 1. This application sets up multiple independent test stations, which can simultaneously conduct parallel tests on multiple liquid-cooled power supply chassis, thereby significantly increasing the test volume per unit time and meeting the needs of mass production; 2. This application sets a guide bar with a guide groove to form a sliding fit with the guide rails on the upper and lower sides of the power supply chassis, so that the pushing and pulling process of the power supply chassis is smooth and precise, and the interface is automatically aligned and engaged, thereby simplifying the operation of replacing the chassis under test, shortening the replacement time, and improving the testing efficiency. 3. This application ensures that the power socket, water inlet plug and water outlet plug can be accurately aligned by the precise guidance of the guide bar, avoiding leakage caused by manual misalignment, ensuring continuous and stable operation of the test process, and preventing equipment damage, test interruption and safety accidents caused by leakage; 4. This application sets up a corresponding independent water inlet branch at each test station, and the water inlet branch includes a regulating valve and a flow meter, thereby allowing operators to independently and precisely adjust the coolant flow rate according to the heat output of each power supply unit. This ensures cooling uniformity and optimal resource utilization during multi-machine testing, and significantly improves the reliability of batch testing. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a top-view perspective view of the liquid-cooled power supply chassis test fixture described in a specific embodiment; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a rear top perspective view of the liquid-cooled power supply chassis test fixture described in a specific embodiment; Figure 4 for Figure 1 The diagram shows the structure of the water inlet pipe in the test fixture for the liquid-cooled power supply chassis. Figure 5 for Figure 1 The diagram shows the structure of the water outlet pipe in the test fixture for the liquid-cooled power supply chassis. Figure 6 for Figure 1 The diagram shows the structure of the backplate assembly in the test fixture for the liquid-cooled power supply chassis. Figure 7 This is a top-down 3D view of the front of the liquid-cooled power supply chassis. Figure 8 This is a top-down 3D view of the rear of the liquid-cooled power supply chassis. Figure 9 for Figure 1 The diagram shows the usage status of the liquid-cooled power supply chassis test fixture. Explanation of reference numerals in the attached figures: 1. Main frame; 1a. Test station; 11. Side plate; 111. Hollowed-out groove; 12. Crossbeam; 121. Front beam; 122. Rear beam; 13. Corner brace; 2. Guide bar; 21. Guide groove; 3. Back panel assembly; 31. Support component; 311. Connecting box; 3111. Socket; 312. Folded edge; 32. Power socket; 33. Positioning seat; 4. Water inlet pipe; 41. Main water inlet pipe; 42. Branch water inlet pipe; 421. Branch water inlet pipe; 422. Regulating valve; 423. Flow meter; 424. Water inlet plug; 5. Water outlet pipe; 51. Main water outlet pipe; 52. Branch water outlet pipe; 521. Branch water outlet pipe; 522. Water outlet plug; 6. Stop block; 61. Inlet groove; 7. Support components; 71. Base plate; 711. Reinforcing edge; 72. Support; 8. Hanging rings. Detailed Implementation

[0020] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0023] Example: like Figures 1 to 3 As shown in the figure, this application discloses a liquid-cooled power supply chassis test fixture for batch aging tests and environmental tests on liquid-cooled power supply chassis. Its specific structure includes: a main frame 1, multiple pairs of guide bars 2, multiple backplate assemblies 3, a water inlet pipe 4, and a water outlet pipe 5.

[0024] like Figure 1 As shown, the main frame 1 is rectangular in shape, with multiple test stations 1a arranged sequentially along the length direction inside, which can realize the simultaneous testing of multiple power supply chassis, solving the problem of low efficiency of traditional single-unit testing. Furthermore, the open arrangement on opposite sides in the width direction facilitates the installation of power supply chassis from one side, providing a channel for the lateral insertion and removal of power supply chassis, and realizing rapid replacement.

[0025] like Figure 2 As shown, multiple pairs of guide bars 2 correspond one-to-one with the test station 1a. Each pair of guide bars 2 is respectively embedded on the upper and lower sides of the corresponding test station 1a and extends along the width direction of the main frame 1. The guide bar 2 is provided with a guide groove 21 along the length direction. The guide groove 21 can form a sliding fit with the guide rails on the upper and lower sides of the power supply chassis, thereby providing precise linear guidance when inserted, improving the smoothness of the push and pull action, and ensuring that when the power supply chassis is in place, the liquid cooling interface and electrical plug on its back can automatically align with the connectors and sockets on the back panel assembly 3, avoiding the problem of manual misalignment.

[0026] like Figure 3 and Figure 6 As shown, multiple backplate assemblies 3 correspond one-to-one with the test station 1a and are all located on the same side of the width direction of the main frame 1. Each backplate assembly 3 includes a support member 31 and a power socket 32 ​​located on the support member 31. The support member 31 is vertically straddling the upper and lower sides of the corresponding opening and is used as a mounting base. The power socket 32 ​​is used to provide working power input to the power supply chassis under test.

[0027] like Figure 3 and Figure 4 As shown, the water inlet pipe 4 is located on the side of the backplate assembly 3 away from the main frame 1, including a main water inlet pipe 41 and multiple water inlet branches 42 corresponding to the backplate assembly 3, used to distribute cooling water to each independent test station 1a; the water inlet branch 42 includes a water inlet branch pipe 421, a regulating valve 422, a flow meter 423, and a water inlet plug 424. The water inlet branch pipe 421 is connected in series with the regulating valve 422 and is equipped with a flow meter 423. The regulating valve 422 is used to independently regulate the coolant flow rate, while the flow meter 423 is used to display the actual flow rate value in real time. The combination of the two allows the operator to accurately... The flow rate of liquid entering each power supply chassis is regulated to avoid uneven cooling or waste of resources, thereby improving production efficiency. One end of the water inlet branch 42 is connected to the main water inlet 41, and the other end is installed on the support 31 of the corresponding backplate assembly 3 and connected to the water inlet plug 424 to ensure that the water inlet plug 424 is stably supported, thereby ensuring the accuracy of docking. Specifically, it can be bolted through the flange for easy disassembly and assembly. The water inlet plug 424 passes through the support 31 and is used to dock with the water inlet socket at the rear of the power supply chassis to deliver cooling water to the corresponding power supply chassis under test.

[0028] like Figure 3 and Figure 5 As shown, the water outlet pipe 5 is located on the side of the backplate assembly 3 away from the main frame 1. It includes a main water outlet pipe 51 and multiple water outlet branches 52 corresponding to the backplate assembly 3. It is used to collect the coolant heated after heat exchange with the power supply at each test station 1a and return it to the external cooling system for heat dissipation, forming a complete cooling cycle. The water outlet branch 52 includes a water outlet branch pipe 521 and a water outlet plug 522. One end of the water outlet branch pipe 521 is connected to the main water outlet pipe 51, and the other end is installed on the support member 31 of the corresponding backplate assembly 3 and connected to the water outlet plug 522, ensuring that the water outlet plug 522 is stably supported and ensuring the accuracy of the connection. Specifically, it can be bolted through a flange for easy disassembly and assembly. The water outlet plug 522 passes through the support member 31 and is used to connect with the water outlet socket at the rear of the power supply chassis, so that the coolant heated after heat exchange in the tested power supply chassis flows back to the water outlet pipe 5.

[0029] This invention enables parallel testing of multiple power supply chassis, rapid and precise push-in installation, and automatic alignment and connection of electrical and fluid interfaces, thereby eliminating the risk of leakage from manual docking, simplifying replacement operations, significantly shortening replacement time, and significantly improving testing efficiency. It also has the ability to independently monitor and precisely adjust the cooling flow of each power supply chassis, ensuring cooling uniformity and optimal resource utilization during multi-machine testing, and significantly improving the reliability of batch aging or environmental testing.

[0030] In some embodiments, such as Figure 6 As shown, the support member 31 includes: The docking box 311 has an open side facing the main frame 1 and is adapted to the rear end of the liquid-cooled power supply chassis to ensure that the two can fit tightly together, thereby providing secondary precise positioning and mechanical correction for accurate alignment. It also has an inlet plug 424 and an outlet plug 522 inside to avoid possible bumps, damage or accidental contact caused by exposed plugs. Two folded edges 312 are respectively located on the upper and lower sides of the docking box 311, and are attached to the side of the main frame 1 and detachably connected. They provide stable support, ensure installation rigidity, realize independent disassembly and assembly, and are easy to maintain and replace. They also ensure that the docking accuracy of each station is the same through the attachment, ensuring a stable connection, facilitating disassembly and assembly, and improving installation accuracy. Specifically, they can be bolted connections. The bottom of the docking box 311 has an opening 3111. The power socket 32 ​​is installed on the side of the docking box 311 facing away from the main frame 1 and corresponds to the opening 3111. It can be fixed by two support frames arranged above and below to ensure the stability of the installation.

[0031] It should be noted that by placing the power socket 32 ​​above the water inlet plug 424 and the water outlet plug 522, it is ensured that even if the plug leaks, the liquid will drip downwards due to gravity, thus keeping it away from the power socket 32 ​​located above. This reduces the risk of electrical faults such as short circuits and leakage caused by liquid leakage, and improves the safety and reliability of the test.

[0032] It should be noted that by installing the power socket 32 ​​on the back of the docking box 311 and arranging the water inlet plug 424 and the water outlet plug 522 inside the docking box 311, physical isolation between the electrical interface and the fluid interface is achieved. This ensures that even if a liquid leak occurs, the leaked liquid will be confined inside the docking box 311 and guided downwards along the inner wall, preventing it from splashing onto the power socket 32 ​​above. This avoids the risk of short circuits caused by liquid leaks, reduces the probability of accidental interruption of the test, ensures the continuity and reliability of batch aging or environmental testing, and improves overall production efficiency.

[0033] When the operator pushes the power supply chassis along guide bar 2: the power supply chassis first achieves primary positioning under the guidance of guide bar 2, and then the rear end of the chassis begins to fit into the opening of docking box 311. As the rear end of the power supply chassis fits into the inner cavity of docking box 311, the position is further corrected, achieving secondary precise positioning, ensuring that the power plug, water inlet socket, and water outlet socket at its rear end are precisely aligned with power socket 32, water inlet plug 424, and water outlet plug 522, respectively. Then, as the power supply chassis continues to be pushed in, the power plug at the rear end of the power supply chassis passes through socket 3111 and completes the connection with the power socket 32 ​​installed on the rear side of docking box 311; at the same time, the water inlet socket and water outlet socket at the rear end of the power supply chassis are simultaneously connected with water inlet plug 424 and water outlet plug 522 in the inner cavity of docking box 311. The entire docking process is completed in one go under the constraint of guide bar 2 and docking box 311, realizing synchronous, fast and precise blind insertion operation, which makes the chassis replacement operation extremely simple, fast and labor-saving, and further improves production efficiency.

[0034] The above design achieves physical isolation between the electrical and fluid interfaces, enables precise guidance for rapid blind insertion, effectively constrains leaking liquid and guides it downwards, thus completely avoiding the risk of electrical short circuits caused by coolant splashing. This significantly improves the safety and continuity of the testing process and ensures the efficient and reliable operation of batch tests.

[0035] In the above embodiments, such as Figure 6 and Figure 8 As shown, the backplane assembly 3 includes: Several positioning seats 33 penetrate and are fixed to the bottom of the docking box 311, and correspond one-to-one with the guide pins at the rear of the liquid-cooled power supply chassis.

[0036] After the power supply chassis slides along the guide bar 2 and is embedded in the docking box 311, the guide pin at the rear of the power supply chassis will be accurately inserted into the corresponding positioning seat 33, thereby achieving three-level precise positioning before interface docking.

[0037] Through the above design, three levels of precise positioning are achieved, and minor deviations can be further eliminated through mechanical mating to ensure that the interface axes are perfectly aligned. This enables precise calibration and completes a zero-error blind mating connection, which significantly improves the reliability and consistency of the docking, and also plays a role in preventing misalignment, thereby improving the stability of rapid replacement and long-term testing.

[0038] In some embodiments, such as Figure 3 As shown, the main inlet pipe 41 and the main outlet pipe 51 both extend along the length of the main frame 1; the branch inlet pipe 421 and the branch outlet pipe 521 both extend along the width of the main frame 1.

[0039] Through the above design, the pipeline system is arranged in a regular and compact structure, thus greatly reducing the crossing and bending of pipelines, reducing the fluid resistance, ensuring the cooling efficiency, facilitating installation, maintenance and troubleshooting, and at the same time ensuring that the lengths and flow resistances of each parallel branch are consistent, ensuring the accuracy, stability and convenience of flow control during multi-station parallel testing.

[0040] In some embodiments, as Figure 1 and Figure 3 shown, the main frame 1 includes: Two side plates 11, which are rectangular and arranged parallel to each other at intervals, and are used as the frame sides; Four cross beams 12, which are arranged between the two side plates 11 and are located at the four corners of the side plates 11 respectively; Eight corner braces 13 are respectively arranged on the inner sides of the two ends of the four cross beams 12 and are connected to the adjacent side plates 11, thereby increasing the structural strength of the connection area, preventing connection loosening or frame deformation, and not forming movement interference to the installation of the power supply chassis, improving the structural compactness.

[0041] Exemplarily, the side plates 11, the cross beams 12 and the corner braces 13 are all bolt-connected. This connection method ensures the stability of the overall structure of the frame, realizes the adjustable installation and convenient disassembly between components, and can fine-tune the parallelism and straightness of the guide bar 2 during the use of the tooling, thus avoiding the phenomenon of rail jamming or jamming caused by assembly errors, ensuring the smoothness of the insertion of the power supply chassis, significantly reducing the installation and maintenance time, and effectively improving the overall production efficiency.

[0042] Through the above design, the overall rigidity and structural stability are improved, providing a solid physical support, being able to stably carry all loads, establishing a reliable and non-deformable precise installation reference, ensuring the consistency and durability of the docking accuracy of each test station 1a, and ensuring the smoothness and stability of batch tests.

[0043] Based on the above embodiments, as Figure 3 shown, a number of uniformly arranged hollow slots 111 are provided on the side plates 11; specifically, two rectangular slots spaced up and down can be provided, so that the side plates 11 form a "day" - shaped structure, thus realizing the maximum degree of lightweight while ensuring the overall structural strength.

[0044] Through the above design, while ensuring the structural strength, the overall weight and manufacturing cost of the tooling are effectively reduced, thus enhancing the practicality and economy of the tooling.

[0045] Based on the above embodiments, as Figures 1 to 3As shown, the four crossbeams 12 are divided into two front beams 121 and two rear beams 122 along the width direction of the main frame 1. The front beams 121 are located on the side of the side plate 11 away from the back plate assembly 3. Multiple blocks 6 are detachably embedded on the side of the front beams 121 away from the back plate assembly 3. The blocks 6 are located one by one at the end of the guide strip 2 away from the back plate assembly 3. The blocks 6 are provided with guide grooves 61, which are connected to and aligned with the guide grooves 21 of the guide strip 2.

[0046] It should be noted that the embedded design of the stop block 6 maintains the flatness of the outer perimeter of the front beam 121, eliminates the risk of bumps and scratches caused by the protruding structure, thereby improving the smoothness and safety of the power supply chassis replacement operation, maintaining the regularity of the overall structure, and ensuring the alignment accuracy when replacing the stop block 6, taking into account both convenient maintenance and long-term reliable operation.

[0047] For example, the stop block 6 has stepped holes on both sides of the guide groove 61, so that it can be detachably embedded by countersunk bolts, thus taking into account reliable fixing, precise positioning and convenient maintenance, so that the stop block 6 can be quickly replaced individually after wear.

[0048] The above design enables modular protection and quick replacement of the guide entrance. When the entrance is worn due to frequent plugging and unplugging, only the stop block 6 needs to be replaced to complete the repair, thus eliminating the need to replace the entire front beam 121 or guide bar 2, thereby significantly reducing the maintenance cost for long-term use.

[0049] In some embodiments, such as Figure 1 and Figure 3 As shown, it includes: Multiple support components 7 are arranged at intervals along the length of the main frame 1 to provide multi-point support for the main frame 1, ensuring the overall level and stability of the tooling, and also providing a unified clamping position for the fixtures on the test platform, ensuring the stability of the fixation.

[0050] In this embodiment, the support component 7 includes: The base plate 71 extends along the width of the main frame 1, and provides a long clamping area for the fixture on both sides, thereby dispersing the clamping force laterally, avoiding stress concentration, ensuring the reliability of the fixation, and the bottom surface can maintain a large area of ​​contact with the test platform, thereby enhancing the anti-overturning ability, improving the stability of single-point support, and ensuring that the tooling is stable and does not shake. Two supports 72 are respectively located at both ends of the top surface of the base plate 71 and are detachably installed on the bottom surface of the main frame 1. They are used to transmit the load from the main frame 1 and the detachable design makes the entire support assembly 7 replaceable.

[0051] The above design provides a dedicated and reliable clamping interface that can effectively disperse the clamping force, ensuring secure installation and isolating the clamping force outside the main frame 1. This avoids deformation or damage to the main frame 1 caused by direct clamping, and ensures the accuracy and stability of long-term use.

[0052] Based on the above embodiments, such as Figure 1 and Figure 3 As shown, the base plate 71 has vertically arranged reinforcing edges 711 on both sides, which significantly enhances the structural rigidity and bending resistance. When the base plate 71 is subjected to lateral clamping force, it can effectively resist lateral compression and prevent deformation, ensuring long-term stability and reliability of clamping. At the same time, it maintains lightweight while greatly improving structural stability and load-bearing reliability.

[0053] In some embodiments, such as Figure 1 and Figure 3 As shown, it includes: Multiple lifting rings 8 are respectively located at the four corners of the top surface of the main frame 1. The symmetrical arrangement of the four corners ensures that the force is evenly balanced during lifting, which can effectively prevent tilting and swaying, and ensure the stability and safety of the lifting.

[0054] The above design provides a balanced and safe standard lifting interface for the tooling, ensuring that the tooling is subjected to uniform force during handling, effectively protecting the positioning accuracy of internal components, significantly improving the handling efficiency and operational safety of the tooling, and increasing the flexibility of its layout.

[0055] The workflow of the technical solution in this application will be further explained as follows: Before the test, the inlet pipe 41 and outlet pipe 51 of the test fixture are connected to the supply port and return port of the external coolant circulation system, respectively.

[0056] During the test, the operator pushes the power supply chassis horizontally from the side of the main frame 1 away from the back panel assembly 3 into the designated test station 1a. Then, the guide rails on the upper and lower sides of the power supply chassis are inserted into the guide grooves 21 of the upper and lower guide bars 2 of the test station 1a, and thus slide smoothly along a straight line towards the back panel assembly 3 under their guidance.

[0057] When the power supply chassis is pushed to the innermost position, the power plug, water inlet socket, and water outlet socket at the rear of the power supply chassis are precisely engaged and locked with the power socket 32, water inlet plug 424, and water outlet plug 522, respectively. The limiting of the guide slide 21 ensures that this process is accurate and avoids misalignment and leakage.

[0058] After the power supply chassis is pushed into place, the operator starts the power supply chassis under test, and then gradually opens the regulating valve 422 corresponding to the test station 1a to start supplying cooling water; then observe the reading of the flow meter 423, and finely adjust the opening of the regulating valve 422 according to the heat generation power of the power supply chassis under test, and set the flow rate to the optimal value, so as to achieve independent and precise cooling of each power supply chassis.

[0059] During the test, cooling water enters the main inlet pipe 41 from the supply port of the external coolant circulation system, then flows through the inlet branch pipe 421, and then through the corresponding inlet plug 424 and inlet socket into the power supply chassis under test. The cooling water undergoes heat exchange in the power supply chassis, thereby absorbing heat and starting to heat up. The heated cooling water flows back to the outlet branch pipe 52 through the corresponding outlet socket and outlet plug 522, then converges into the outlet main pipe 51, and finally is output to the return port of the external coolant circulation system, thus forming a complete cooling cycle.

[0060] After the test is completed, the power supply chassis under test is turned off, and then the corresponding regulating valve 422 is turned off to stop the supply of cooling water. Then the power supply chassis is pulled out from the test station 1a, and the power plug, water inlet socket and water outlet socket at the rear of the power supply chassis are unlocked and disconnected from the power socket 32, water inlet plug 424 and water outlet plug 522, respectively.

[0061] After the power supply chassis is removed, the empty test station 1a can be immediately used to install the next power supply chassis under test, thus entering the next test cycle. Due to the adoption of the guide and quick-connect design, the replacement time of a single power supply chassis is extremely short, thereby realizing efficient batch continuous testing.

[0062] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A liquid-cooled power cabinet test fixture, comprising: The utility model relates to a kind of liquid cooling power supply test bench, including: Main frame, cuboid, inside is provided with multiple test stations sequentially arranged along length direction, and it is arranged in width direction opposite two sides open; Multiple pairs of guide bars, with the test station one-to-one, each pair of guide bars is oppositely embedded in the upper and lower sides of the corresponding test station, and extends along the width direction of the main frame, and the guide bar is provided with guide chute along the length direction; Multiple backboard assemblies, with the test station one-to-one, and all be located in the same side of the main frame width direction, each backboard assembly includes support and power socket provided on the support, the support is vertically across and is located in the upper and lower sides of the corresponding opening; Water inlet pipeline, located in the side of the backboard assembly away from the main frame, including water inlet main pipe and multiple water inlet branch lines corresponding to the backboard assembly, the water inlet branch line includes water inlet branch pipe, regulating valve, flowmeter and water inlet plug, the water inlet branch pipe is connected with the regulating valve and is provided with the flowmeter, and one end is connected with the water inlet main pipe, the other end is installed on the support of the corresponding backboard assembly and is connected with the water inlet plug, the water inlet plug passes through the support; Water outlet pipeline, located in the side of the backboard assembly away from the main frame, including water outlet main pipe and multiple water outlet branch lines corresponding to the backboard assembly, the water outlet branch line includes water outlet branch pipe and water outlet plug, the water outlet branch pipe one end is connected with the water outlet main pipe, the other end is installed on the support of the corresponding backboard assembly and is connected with the water outlet plug, the water outlet plug passes through the support.

2. The liquid-cooled power pod test fixture of claim 1, wherein, The support includes: Docking box, open to the side of main frame, and is matched with the rear end of liquid cooling power supply case, and the inside is provided with the water inlet plug and the water outlet plug; Two flanges, respectively located in the upper and lower sides of the docking box, and are attached with the side of the main frame and can be detachably connected; Wherein, the box bottom of the docking box is provided with a socket, the power socket is installed on the side of the docking box away from the main frame, and corresponds with the socket, and is located above the water inlet plug and the water outlet plug.

3. The liquid-cooled power pod test fixture of claim 2, wherein, The backboard assembly includes: Several positioning seats, pass through and are fixed to the box bottom of the docking box, and are one-to-one corresponding with the guide pin of the rear end of liquid cooling power supply case.

4. The liquid-cooled power pod test fixture of claim 1, wherein, The water inlet main pipe and the water outlet main pipe all extend along the length direction of the main frame, and the water inlet branch pipe and the water outlet branch pipe all extend along the width direction of the main frame.

5. The liquid-cooled power pod test fixture of claim 1, wherein, The main frame includes: Two side plates, rectangular, and parallelly and oppositely spaced apart; Four cross beams, located between the two side plates, and respectively located at the four corners of the side plate; Eight corner braces, located in the inner side of the two ends of the four cross beams, and connected with the adjacent side plate.

6. The liquid-cooled power pod test fixture of claim 5, wherein, The side plate is provided with a plurality of uniformly arranged hollow grooves.

7. The liquid-cooled power pod test fixture of claim 5, wherein, The four cross beams are divided into two front beams and two rear beams along the width direction of the main frame, and the front beam is located on the side of the side plate away from the backboard assembly. The front beam is detachably embedded with a plurality of stop blocks on a side away from the back plate assembly, the stop blocks are correspondingly located at one end of the guide bars away from the back plate assembly, and a guide-in groove is formed on the stop block, the guide-in groove is in communication with the guide sliding groove of the guide bar and is aligned with each other.

8. The liquid-cooled power pod test fixture of claim 1, wherein, Comprise: A plurality of support assemblies are arranged at intervals along the length direction of the main body frame. The support assembly comprises: A bottom plate extending along the width direction of the main body frame; Two supports are respectively arranged at both ends of the top surface of the bottom plate and are detachably mounted on the bottom surface of the main body frame.

9. The liquid-cooled power pod test fixture of claim 8, wherein, The two sides of the bottom plate have vertically arranged reinforcing edges.

10. The liquid-cooled power pod test fixture of claim 1, wherein, Comprise: A plurality of lifting rings are respectively arranged at the four corners of the top surface of the main body frame.

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