A performance test system for hydrogen fuel cell research and development

Abstract

The present invention discloses a performance test system for hydrogen fuel cell research and development, which belongs to the field of battery testing technology, and includes a test bench, on which are provided an assembly clamping module for accurately applying pressure and locking the hydrogen fuel cell, a fluorescent marking detection module for detecting the sealing performance of the hydrogen fuel cell, and an impact simulation module for exploring the impact of applied pressure and impact force on the hydrogen fuel cell. The present invention conducts research and development tests on the different pressure bearing strengths of hydrogen fuel cell plates made of different materials, assembles the hydrogen fuel cell by assembling the clamping module, applies pressure by a hydraulic device, injects fluorescent gas into the interior of the hydrogen fuel cell, and uses a visual detection device to detect whether the fluorescent gas leaks, so as to explore the difference in the pressure bearing capacity of plates of different materials under different pressures, so as to achieve the performance test of the sealing and pressure bearing strength of the hydrogen fuel cell, and explore the safe pressure range under the joint action of pressure bearing strength and impact resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing, and in particular to a performance testing system for hydrogen fuel cell research and development. Background Art

[0002] A hydrogen fuel cell is an electrochemical power generation device that converts chemical energy into electrical energy. The interior of a hydrogen fuel cell reactor is mainly composed of multiple battery plates, which are composed of positive plates, negative plates, and a reaction diaphragm between the two. The positive plates and negative plates transport hydrogen and oxygen, and a reaction occurs at the reaction diaphragm to generate current, thus realizing the power generation process.

[0003] Hydrogen fuel cells are often composed of a large number of battery plates. The internal transportation of gas needs to ensure the sealing effect of the battery plates. In order to ensure the sealing of the battery plates, multiple battery plates are often compressed by a pressure device, and a high-strength locking device is used to apply several tons of pressure to the battery plates to ensure its sealing effect. The plates that make up the hydrogen fuel cell are made of metal and graphite. Different materials can withstand different pressure limits and require different sealing conditions. In the research and development process, it is often involved in the test of the relationship between the sealing and the applied pressure of plates made of different materials. The tension of the plate is judged by a hydraulic device, and the change between the pressure and the plate pressure cannot be accurately controlled, which is not conducive to the research and development. In addition, whether the impact force suffered by the vehicle during driving will affect the plate under pressure is also a problem that needs to be explored. Based on this, a performance test system for hydrogen fuel cell research and development is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art of testing the relationship between the sealing performance and applied pressure of plates made of different materials. The tension of the plates is judged by a hydraulic device, but the change between the pressure and the pressure-bearing capacity of the plates cannot be accurately controlled, which is not conducive to research and development. A performance testing system for hydrogen fuel cell research and development is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A performance test system for hydrogen fuel cell research and development, comprising a test bench, on which are provided an assembly clamping module for accurately applying pressure to lock the hydrogen fuel cell, a fluorescent marking detection module for detecting the sealing performance of the hydrogen fuel cell, and an impact simulation module for exploring the effects of applied pressure and impact force on the hydrogen fuel cell;

[0007] The assembly clamping module comprises an assembly inspection platform arranged on the test bench, the assembly inspection platform is connected to a test end plate through a rotating switching member, tensioning components are arranged at both ends of the test end plate, a hydraulic device is arranged on the test bench, a pressure column is connected to the output end of the hydraulic device, two pressure racks arranged oppositely are connected to the pressure column through a detachable pressure assembly, and a pressure sensor is arranged at the bottom of the pressure rack;

[0008] The fluorescent marker detection module includes a marking device and a detection device, wherein the marking device includes an adapting docking plate arranged on a pressure column, wherein a gas injection connector connected to a hydrogen fuel cell is arranged on the adapting docking plate, and a pressurizing pump for injecting fluorescent gas is externally connected to the gas injection connector;

[0009] The detection device comprises a detection swivel rotatably arranged on the assembly detection table, the detection swivel is fixedly connected to a vertical plate, the vertical plate is connected to the visual detection device through an elastic member, and the assembly detection table is provided with a guide component for guiding the moving path of the visual detection device;

[0010] The impact simulation module comprises a force storage seat arranged on a test and detection bench, and the force storage seat is connected to an impact disc via an electromagnetic drive device.

[0011] Preferably, the rotating switching member includes a plugging rotating plate fixedly connected to the end of the test end plate, the plugging rotating plate is rotatably connected to a switching rotating block through a rotating shaft, a rectangular plugging connecting port adapted to the plugging rotating plate is provided on the assembly and inspection platform, and limiting shafts sliding on the inner wall of the rectangular plugging connecting port are arranged on both sides of the switching rotating block.

[0012] Preferably, the tensioning assembly includes a rotating seat fixedly arranged on the side wall of the test end plate, the rotating seat is connected to a threaded pull rod via a rotating shaft, a fastening nut is threadedly connected to the top of the threaded pull rod, and a tension docking seat adapted to the threaded pull rod is provided on the side wall of the pressure frame.

[0013] Preferably, the detachable pressure assembly comprises a pressure plate fixedly arranged at the end of the pressure column, and combination plates are telescopically arranged on both sides of the pressure plate, and a resistance block is arranged on the combination plate, and the resistance block is connected to the side wall of the pressure plate through a resistance spring;

[0014] A combination seat matched with the combination plate is fixedly connected to the pressure frame.

[0015] Preferably, there are two pressure sensors, which are respectively arranged on the assembly detection tables located on both sides of the test end plate, and the detection ends thereof are in contact with the bottom of the combination seat to realize real-time detection of the pressure applied to the pressure frame.

[0016] Preferably, a drive motor is provided on the assembly and inspection platform, a transmission port is opened on the assembly and inspection platform, the output end of the drive motor passes through the transmission port and is fixedly connected to a drive gear, and the outer wall of the detection rotating ring is fixedly connected to a drive gear ring meshing with the drive gear.

[0017] Preferably, the elastic member includes a force storage column connected to the vertical plate, the end of the force storage column passes through the side wall of the vertical plate, extends outward, and is fixedly connected to a force storage disk, and the force storage disk is connected to the vertical plate via a sleeve spring sleeved on the force storage column.

[0018] Preferably, a limiting vertical column is fixedly connected to the bottom of the visual inspection device, and a rectangular guide opening for the limiting vertical column to move is provided on the assembly inspection table.

[0019] Preferably, the electromagnetic drive device includes an electromagnetic disk arranged on a force storage seat, and the side wall of the impact disk is provided with a magnetic repulsion disk that magnetically repels the electromagnetic disk. The impact disk is slidably connected to the force storage seat through a horizontal guide column, and the horizontal guide columns are locked and released by electromagnetic switches on both sides of the force storage seat.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention conducts research and development tests on the different pressure-bearing strengths of plates for hydrogen fuel cells made of different materials. The hydrogen fuel cell is assembled by assembling a compression module, and pressure is applied by a hydraulic device. Fluorescent gas is injected into the hydrogen fuel cell, and a visual detection device is used to detect whether the fluorescent gas is leaking, so as to explore the difference in the pressure-bearing capacity of plates made of different materials under different pressures, so as to achieve the sealing and pressure-bearing strength performance test of the hydrogen fuel cell.

[0022] 2. The present invention is designed based on the relationship between the impact force strength that hydrogen fuel cell plates made of different materials can withstand under pressure. Under different pressures, the hydrogen fuel cell is locked under pressure by a tensioning assembly, and then an impact test is carried out. After the test, the leakage of fluorescent gas is detected by a visual detection device to explore the safe pressure range under the combined effect of pressure strength and impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main assembly structure of a performance test system for hydrogen fuel cell research and development proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the main structure of a performance test system for hydrogen fuel cell research and development proposed by the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 A schematic diagram of a performance test system for hydrogen fuel cell research and development proposed by the present invention during an impact simulation test;

[0027] Figure 5 This is a structural schematic diagram of an assembly and compression module in a performance test system for hydrogen fuel cell research and development proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of assembling a compression module in a performance test system for hydrogen fuel cell research and development proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of a detection device in a performance test system for hydrogen fuel cell research and development proposed by the present invention.

[0030] In the figure: 1. test bench; 2. assembly test bench; 3. test end plate; 4. hydraulic device; 5. pressure column; 6. pressure frame; 7. pressure sensor; 8. adapter docking plate; 9. gas injection connector; 10. detection swivel; 11. vertical plate; 12. force storage seat; 13. impact disk; 14. insertion rotating plate; 15. switching block; 16. rectangular insertion connection port; 17. rotating seat; 18. threaded pull rod; 19. tension docking seat; 20. pressure plate; 21. combination plate; 22. combination seat; 23. drive motor; 24. drive gear; 25. force storage column; 26. limit vertical column; 27. rectangular guide port; 28. electromagnetic disk; 29. ​​horizontal guide column; 30. electromagnetic switch; 31. visual detection device; 32. magnetic repulsion disk. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example, see Figure 1 - Figure 7 A performance test system for hydrogen fuel cell research and development includes a test bench 1, a protective cover is provided on the test bench 1 to ensure the safety of the test, and an assembly clamping module for accurately pressurizing and locking the hydrogen fuel cell is provided on the test bench 1; the assembly clamping module includes an assembly test bench 2 provided on the test bench 1, and the assembly test bench 2 is connected to a test end plate 3 through a rotating switching member;

[0035] It is worth noting that the test end plate 3 is the lower end plate of the hydrogen fuel cell. During the test phase, the lower end plate does not need to be set at the bottom of the hydrogen fuel cell. The upper end plate is normally installed, and the test end plate 3 is used at the bottom to replace the lower end plate. The air supply channel originally set on the lower end plate can be omitted on the test end plate 3, so that a seal can be achieved on the lower end of the hydrogen fuel cell being tested, thereby ensuring the sealing effect during the later fluorescent marker detection.

[0036] Furthermore, the rotating switching member includes a plugging rotating plate 14 fixedly connected to the end of the test end plate 3, the plugging rotating plate 14 is rotatably connected to the switching turn block 15 through a rotating shaft, and a rectangular plugging connection port 16 adapted to the plugging rotating plate 14 is opened on the assembly and inspection table 2, and limiting shafts sliding on the inner wall of the rectangular plugging connection port 16 are arranged on both sides of the switching turn block 15.

[0037] The inner wall of the rectangular insertion connection port 16 is provided with a vertical slide groove for the limiting shaft to slide, so that the limiting shaft can slide in the rectangular insertion connection port 16. When assembling and pressing, the test end plate 3 can be placed horizontally. When performing an impact simulation test, the insertion rotating plate 14 can be inserted into the rectangular insertion connection port 16 to place the test end plate 3 vertically, so as to achieve an impact test simulation of the hydrogen fuel cell pressurized by the tensioning assembly thereon.

[0038] Tensioning components are arranged at both ends of the test end plate 3, and the tensioning components include a rotating seat 17 fixedly arranged on the side wall of the test end plate 3, the rotating seat 17 is connected to a threaded rod 18 through a rotating shaft, and a fastening nut is threadedly connected to the top of the threaded rod 18, and a tension docking seat 19 adapted to the threaded rod 18 is arranged on the side wall of the pressure frame 6;

[0039] The threaded pull rod 18 can play the role of positioning the battery panel when assembling the battery panel to ensure the accuracy of assembly. Furthermore, when the hydraulic device 4 applies pressure to the hydrogen fuel cell, the pressure applied by the pressure frame 6 to the assembled battery panel below it is locked through the tensioning assembly, thereby continuously applying pressure to the assembled battery panel, simulating the tensioning steps in the actual assembly process, and maintaining the continuous pressure state on the hydrogen fuel cell during the test.

[0040] A hydraulic device 4 is provided on the test bench 1. The hydraulic device 4 is a prior art and can accurately control the applied pressure. No further details are given here. The output end of the hydraulic device 4 is connected to a pressure column 5. The pressure column 5 is connected to two relatively arranged pressure frames 6 through a detachable pressure component. The pressure frame 6 is fixedly connected to a combination seat 22 that is compatible with the combination plate 21.

[0041] Furthermore, the detachable pressure assembly includes a pressure plate 20 fixedly arranged at the end of the pressure column 5, and a combination plate 21 is telescopically arranged on both sides of the pressure plate 20, and a resistance block is arranged on the combination plate 21, and the resistance block is connected to the side wall of the pressure plate 20 through a resistance spring;

[0042] The combined plate 21 is telescopically arranged on both sides of the pressure plate 20 to ensure that when needed, the combined plate 21 can be inserted into the combined seat 22 arranged on the pressure frame 6 to achieve the combination between the pressure frame 6 and the pressure column 5.

[0043] A pressure sensor 7 is provided at the bottom of the pressure frame 6. There are two pressure sensors 7, which are respectively arranged on the assembly detection platform 2 located on both sides of the test end plate 3. The detection ends thereof are in contact with the bottom of the combination seat 22 to realize real-time detection of the pressure applied to the pressure frame 6.

[0044] The pressure sensors 7 are arranged on both sides of the test end plate 3, so as to monitor the real-time pressure exerted on the hydrogen fuel cell. Moreover, when the hydrogen fuel cell is pressed and limited by the tensioning assembly, the pressure applied to the hydrogen fuel cell by the tensioning assembly can be accurately determined by the pressure sensors 7 arranged on both sides. Compared with the existing method of judging the pressure applied to the hydrogen fuel cell by the pressure value of the hydraulic device 4, it can realize real-time detection of the pressure of the hydraulic device 4, and also realize the pressure value when the pressure applied to the hydrogen fuel cell by the tensioning assembly is locked, thereby ensuring the consistency of the test data with the expected design and avoiding test errors caused by insufficient locking pressure of the tensioning assembly.

[0045] The test bench 1 is provided with a fluorescent marking detection module for detecting the sealing performance of the hydrogen fuel cell. The fluorescent marking detection module includes a marking device and a detection device. The marking device includes an adapting docking plate 8 provided on the pressure column 5. The adapting docking plate 8 is provided with a gas injection connector 9 connected to the hydrogen fuel cell. The gas injection connector 9 is externally connected to a pressurizing pump for injecting fluorescent gas. The fluorescent gas is a gas that can display a specific color under a specific light source, such as coloring under blue light. It is a commonly used detection gas and will not be described in detail here.

[0046] It is worth noting that the gas injection connector 9 is a structure that is compatible with the gas injection hole on the upper end plate of the hydrogen fuel cell, and can achieve a sealed connection with the gas injection hole.

[0047] The detection device includes a detection swivel 10 rotatably set on the assembly detection platform 2, and the detection swivel 10 is fixedly connected to the vertical plate 11. Furthermore, a drive motor 23 is arranged on the assembly detection platform 2, and a transmission port is opened on the assembly detection platform 2. The output end of the drive motor 23 passes through the transmission port and is fixedly connected to a drive gear 24. The outer wall of the detection swivel 10 is fixedly connected to a drive gear ring meshing with the drive gear 24.

[0048] During the inspection process, the driving motor 23 controls the driving gear 24 to rotate, thereby driving the inspection rotating ring 10 meshed with the driving gear ring to rotate. The inspection rotating ring 10 drives the vertical plate 11 to move during the rotation.

[0049] The vertical plate 11 is connected to a visual inspection device 31 through an elastic member. The visual inspection device 31 has a camera thereon and is equipped with a light source for illuminating the fluorescent substance. It does not need to be perpendicular to the hydrogen fuel cell, but only needs to be close to the hydrogen fuel cell to illuminate the fluorescent substance and transmit image data through the camera. A guiding component for guiding the moving path of the visual inspection device 31 is provided on the assembly inspection table 2;

[0050] Furthermore, the elastic member includes a force storage column 25 connected to the vertical plate 11. The end of the force storage column 25 passes through the side wall of the vertical plate 11, extends outward, and is fixedly connected to a force storage disk. The force storage disk is connected to the vertical plate 11 through a sleeve spring sleeved on the force storage column 25.

[0051] The bottom of the visual inspection device 31 is fixedly connected to the limited vertical column 26, the assembly test bench 2 is provided with a rectangular guide opening 27 for the limited vertical column 26 to move;

[0052] It is worth noting that by setting up the rectangular guide opening 27, the movement of the limiting vertical column 26 therein can be guaranteed, so that the visual detection device 31 connected by the elastic member can move along the trajectory of the rectangular guide opening 27, so that the visual detection device 31 can realize the detection of fluorescent substances at the rupture of the hydrogen fuel cell.

[0053] The test bench 1 is provided with an impact simulation module for exploring the influence of applied pressure and impact force on hydrogen fuel cells. The impact simulation module includes a force storage seat 12 arranged on the test bench. The force storage seat 12 is connected to an impact disk 13 through an electromagnetic drive device. The impact disk 13 should avoid contact with the tensioning components arranged around it, and its impact point is on the pressure frame 6.

[0054] Furthermore, the electromagnetic drive device includes an electromagnetic disk 28 arranged on the force storage seat 12, and the side wall of the impact disk 13 is provided with a magnetic repulsion disk 32 that magnetically repels the electromagnetic disk 28. The impact disk 13 is slidably connected to the force storage seat 12 through a horizontal guide column 29, and the electromagnetic switches 30 on both sides of the force storage seat 12 realize locking and releasing of the horizontal guide column 29.

[0055] The electromagnetic switch 30 is a kind of control switch. The horizontal guide column 29 is provided with an insertion interface of the electromagnetic switch 30 lock core, which can lock the horizontal guide column 29 on the force storage seat 12. When the magnetic force of the electromagnetic disk 28 reaches the maximum, the electromagnetic switch 30 is used to release the lock, so that the impact disk 13 is quickly rushed out under the action of the magnetic repulsion force, simulating the impact force test.

[0056] The magnetic force of the electromagnetic disk 28 is set with multiple gears, so as to apply different magnetic repulsion forces to the magnetic repulsion disk 32 that repel it magnetically, simulating the impact force of a car at different speeds, and simulating whether the hydrogen fuel cell will leak under different impact forces, so as to explore the pressing force within a suitable range, that is, to ensure that the substrate will not be broken when subjected to impact within a certain range, and to ensure the sealing effect.

[0057] The present invention explores a series of issues regarding the relationship between the pressure-bearing strength of hydrogen fuel cell plates made of different materials, the pressure-bearing strength and the sealing effect, and the pressure-bearing strength and the impact strength (when the pressure-bearing strength is greater, the smaller the impact force applied, the plate will break). During the research and development process, the present invention can be tested using this solution. The specific operations are as follows:

[0058] The plates constituting the hydrogen fuel cell are installed one by one on the test end plate 3 according to the required number of tests, and after installation, the upper end plate of the hydrogen fuel cell is installed at the top, and the lower end plate is served by the test end plate 3. At this time, the hydraulic device 4 is controlled to drive the pressure frame 6 to move downward, and the pressure on the hydrogen fuel cell is applied through the pressure frame 6, and the gas injection connector 9 is sealed and connected with the gas injection port on the upper end plate, and the pressurized fluorescent gas is delivered to the hydrogen fuel cell. On the basis of the pressure of research and development, the pressure is continuously increased during the test, and after each pressure adjustment, the detection swivel 10 is controlled to rotate by the driving motor 23. Under the joint action of the rectangular guide port 27 and the limiting vertical column 26, the visual detection device 31 is driven to approach the hydrogen fuel cell plate to detect whether the plate is damaged under the pressure. When damage occurs, the internal fluorescent gas will leak out, which will be detected under the action of the visual detection device 31, thereby realizing the study of the compressive strength performance of plates of different materials;

[0059] When it is necessary to explore the relationship between the pressure bearing strength and the impact resistance, under the corresponding required pressure, the threaded pull rod 18 of the tensioning assembly is tightened with the tension docking seat 19, and the pressure sensor 7 is used to ensure the pressure of the hydrogen fuel cell after tightening under the action of the hydraulic device 4. Based on this pressure, the corresponding impact strength is tested, and the insertion rotating plate 14 at the end of the test end plate 3 is inserted into the rectangular insertion connection port 16 to realize the vertical limit of the hydrogen fuel cell in the vertical state;

[0060] At this time, the electromagnetic disk 28 is controlled according to the required impact force. When the magnetic repulsion force reaches the standard, the limit on the horizontal guide column 29 is released by the electromagnetic switch 30. Under the action of the magnetic repulsion force, the impact disk 13 provided with the magnetic repulsion disk 32 rushes out quickly, and an impact test is carried out on the hydrogen fuel cell in the vertical state. After the test, the visual inspection device 31 is used again to detect whether the substrate is broken, thereby realizing the exploration of the appropriate pressure requirements between the pressure bearing strength and the impact resistance during the research and development process.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A performance test system for hydrogen fuel cell research and development, comprising a test bench (1), characterized in that: The test bench (1) is provided with an assembly clamping module for accurately applying pressure to lock the hydrogen fuel cell, a fluorescent marking detection module for detecting the sealing performance of the hydrogen fuel cell, and an impact simulation module for exploring the influence of applied pressure and impact force on the hydrogen fuel cell; The assembly clamping module comprises an assembly inspection table (2) arranged on a test bench (1); the assembly inspection table (2) is connected to a test end plate (3) via a rotating switching member; tensioning components are arranged at both ends of the test end plate (3); a hydraulic device (4) is arranged on the test bench (1); an output end of the hydraulic device (4) is connected to a pressure column (5); two pressure frames (6) arranged opposite to each other are connected to the pressure column (5) via a detachable pressure component; a pressure sensor (7) is arranged at the bottom of the pressure frame (6); The fluorescent marking detection module comprises a marking device and a detection device, the marking device comprises an adapting docking plate (8) arranged on a pressure column (5), the adapting docking plate (8) is provided with a gas injection connector (9) connected to a hydrogen fuel cell, and the gas injection connector (9) is externally connected to a pressurizing pump for injecting fluorescent gas; The detection device comprises a detection swivel (10) rotatably arranged on an assembly detection platform (2), the detection swivel (10) being fixedly connected to a vertical plate (11), the vertical plate (11) being connected to a visual detection device (31) via an elastic member, and a guide component for guiding the movement path of the visual detection device (31) being arranged on the assembly detection platform (2); The impact simulation module comprises a force storage seat (12) arranged on a test and detection bench, wherein the force storage seat (12) is connected to an impact disc (13) via an electromagnetic drive device.

2. A hydrogen fuel cell performance testing system for R&D according to claim 1, characterized in that: The rotating switching member comprises a cutting rotating plate (14) fixedly connected to the end of the test end plate (3); the cutting rotating plate (14) is rotatably connected to a switching rotating block (15) via a rotating shaft; a rectangular cutting connecting port (16) matching the cutting rotating plate (14) is provided on the assembly inspection table (2); and limiting shafts sliding on the inner wall of the rectangular cutting connecting port (16) are provided on both sides of the switching rotating block (15).

3. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: The tensioning assembly comprises a rotating seat (17) fixedly arranged on the side wall of the test end plate (3), the rotating seat (17) being connected to a threaded pull rod (18) via a rotating shaft, the top of the threaded pull rod (18) being threadedly connected to a fastening nut, and the side wall of the pressure frame (6) being provided with a tension docking seat (19) adapted to the threaded pull rod (18).

4. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: The detachable pressure assembly comprises a pressure plate (20) fixedly arranged at the end of the pressure column (5), and combination plates (21) are telescopically arranged on both sides of the pressure plate (20), and a resistance block is arranged on the combination plate (21), and the resistance block is connected to the side wall of the pressure plate (20) via a resistance spring; A combination seat (22) adapted to the combination plate (21) is fixedly connected to the pressure frame (6).

5. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: There are two pressure sensors (7), which are respectively arranged on the assembly test bench (2) located on both sides of the test end plate (3), and the detection ends thereof are in contact with the bottom of the assembly seat (22), so as to realize real-time detection of the pressure applied to the pressure frame (6).

6. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: A drive motor (23) is arranged on the assembly inspection platform (2), a transmission port is opened on the assembly inspection platform (2), an output end of the drive motor (23) passes through the transmission port and is fixedly connected to a drive gear (24), and an outer wall of the inspection rotating ring (10) is fixedly connected to a drive gear ring meshing with the drive gear (24).

7. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: The elastic member comprises a force storage column (25) connected to the vertical plate (11); an end of the force storage column (25) penetrates the side wall of the vertical plate (11), extends outward, and is fixedly connected to a force storage disk; the force storage disk is connected to the vertical plate (11) via a sleeve spring sleeved on the force storage column (25).

8. A performance test system for hydrogen fuel cell R&D according to claim 1, characterized in that: The bottom of the visual inspection device (31) is fixedly connected to a limit vertical column (26), and the assembly inspection platform (2) is provided with a rectangular guide opening (27) for the limit vertical column (26) to move.

9. A hydrogen fuel cell performance testing system for R&D according to claim 1, characterized in that: The electromagnetic drive device comprises an electromagnetic disk (28) arranged on a force storage seat (12); a magnetic repulsion disk (32) which magnetically repels the electromagnetic disk (28) is arranged on a side wall of the impact disk (13); the impact disk (13) is slidably connected to the force storage seat (12) via a horizontal guide column (29); and the electromagnetic switches (30) on both sides of the force storage seat (12) realize locking and releasing of the horizontal guide column (29).

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