A fuel cell multipurpose integrated parameter detection end plate

Abstract

This invention relates to the field of fuel cell technology, and in particular to a multi-purpose integrated parameter detection end plate for fuel cells, comprising an integrated end plate, a front end plate, and a rear end plate; the rear end plate is fitted and connected to the front end plate, and the side of the front end plate away from the rear end plate is movably connected to the integrated end plate; the integrated end plate is provided with manifolds for air, hydrogen, and cooling water inlet and outlet, and a connecting pipe for accommodating sensors is provided on the side of the end of the integrated end plate; the sensor output end is connected to the test port of the test bench, and the manifolds for air, hydrogen, and cooling water inlet and outlet are connected to the piping of the test bench. This multi-purpose integrated parameter detection end plate for fuel cells can detect various parameters at the inlet and outlet of the fuel cell stack, improving the accuracy of fuel cell inlet and outlet parameter detection, effectively improving the control response speed of the fuel cell test bench, solving the technical problem of existing test benches where sensors are far from the fuel cell stack inlet and outlet and the measurement results are inaccurate, and expanding the types of parameters that can be detected.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to a multi-purpose integrated parameter detection endplate for fuel cells. Background Technology

[0002] As an energy conversion device, fuel cells can directly convert the chemical energy of fuel into electrical energy, offering advantages such as high energy density, high efficiency, and environmental friendliness, and have received widespread attention in recent years. Diagnostic testing of fuel cells is crucial for their positive development. The control of parameters such as the temperature, pressure, and humidity at the inlet and outlet of hydrogen, air, and cooling water in the fuel cell stack directly affects the fuel cell's output performance. Accurately detecting these parameters is currently a challenge in the testing process.

[0003] CN 217361679 U discloses a dedicated fuel cell stack for a fuel cell testing platform, including a lower end plate. An upper end plate is movably mounted on the top of the lower end plate. Quick-connect fittings for hydrogen, air, and coolant are fixedly mounted on the top of the left and right sides of the upper end plate. This end plate does not have temperature and pressure detection functions. During the test, the temperature and pressure of hydrogen, air, and coolant need to be detected by sensors in the test bench pipeline. The introduction of additional quick-connect fittings increases the pressure drop, causing a deviation between the test pressure and the pressure inside the fuel cell stack manifold. At the same time, because the temperature sensors in the test bench pipeline are far from the fuel cell stack inlet and outlet, heat is lost, resulting in a deviation between the measured temperature and the temperature inside the fuel cell stack manifold.

[0004] CN 212433347 U discloses a hydrogen fuel cell testing device, including a frame and a testing platform disposed on the upper surface of the frame. The testing platform is equipped with a control panel, which has a connector and a control switch for connecting the hydrogen fuel cell. The temperature and pressure sensors are designed in pipelines that are far away from the inlet and outlet of the fuel cell stack, resulting in larger than expected temperature and pressure values ​​during testing.

[0005] (1) In existing fuel cell tests, the temperature and pressure sensors for hydrogen, air and coolant at the inlet and outlet of the fuel cell stack are all in the test bench pipeline. Due to the introduction of pipeline adapters, the measured pressure values ​​deviate from the pressure in the manifold of the fuel cell stack core. Due to the introduction of test bench adapters and excessively long pipeline connections, the measured temperature values ​​deviate significantly from the temperature in the manifold of the fuel cell stack core.

[0006] (2) In existing fuel cell testing, temperature and pressure sensors are all set in the test bench pipeline. Due to the limitation of pipeline space, temperature and pressure sensors in each pipeline cannot be set at equal intervals, resulting in different distances between the sensors and the stack core. The measured temperature and pressure values ​​are inconsistent in the time and space dimensions, which cannot reflect the state of hydrogen, air and cooling water at the same location during the stack test, and greatly interferes with the diagnosis and verification of the stack.

[0007] (3) Existing testing equipment cannot accurately measure parameters such as the concentration of gas at the inlet and outlet of the fuel cell stack when testing special fuel types and concentrations. Summary of the Invention

[0008] To address the aforementioned problems, the present invention aims to provide a multi-purpose integrated parameter detection endplate for fuel cells, comprising an integrated endplate, a front endplate, and a rear endplate. The rear endplate is fitted and connected to the front endplate, and the side of the front endplate furthest from the rear endplate is movably connected to the integrated endplate. The integrated endplate is provided with manifolds for air, hydrogen, and cooling water inlet and outlet (air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold). A connecting pipe for accommodating sensors is provided on the side of the end of the integrated endplate. The sensor output is connected to the test port of the test bench, and the manifolds for air, hydrogen, and cooling water inlet and outlet are connected to the piping of the test bench. This multi-purpose integrated parameter detection endplate for fuel cells enables the detection of various parameters at the inlet and outlet of the fuel cell stack, improving the accuracy of fuel cell inlet and outlet parameter detection, effectively increasing the control response speed of the fuel cell test bench, solving the technical problem of existing test bench sensors being far from the fuel cell stack inlet and outlet and resulting in inaccurate measurement results, and expanding the types of parameters that can be detected.

[0009] The present invention provides a multi-purpose integrated parameter detection end plate for fuel cells. By fixing various sensors on the integrated end plate, the sensors can be integrated and fixed near the inlet and outlet of the fuel cell stack using the ample space in the integrated end plate. At the same time, the integrated end plate is movably connected to the front end plate and the rear end plate, which is easy to disassemble and assemble, and can effectively improve the accuracy of measurement results.

[0010] The objective of this invention can be achieved through the following technical solutions:

[0011] This invention provides a multi-purpose integrated parameter detection end plate for fuel cells, which is connected to the test port and pipeline of a test bench. It includes an integrated end plate, a front end plate, and a rear end plate. The rear end plate is fitted into the front end plate, and the side of the front end plate away from the rear end plate is movably connected to the integrated end plate.

[0012] The integrated end plate is a square plate, and is provided with an air inlet manifold, an air outlet manifold, a cooling water inlet manifold, a cooling water outlet manifold, a hydrogen inlet manifold, and a hydrogen outlet manifold; a connecting pipe for accommodating sensors is provided on the side of the end of the integrated end plate.

[0013] The connecting pipe is connected to the test port, and the air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold are connected to the pipeline.

[0014] In one embodiment of the present invention, the connecting pipe includes an air inlet connecting pipe, an air outlet connecting pipe, a cooling water inlet connecting pipe, a cooling water outlet connecting pipe, a hydrogen inlet connecting pipe, and a hydrogen outlet connecting pipe;

[0015] The sensors include an air inlet sensor, an air outlet sensor, a cooling water inlet sensor, a cooling water outlet sensor, a hydrogen inlet sensor, and a hydrogen outlet sensor.

[0016] In one embodiment of the present invention, the air inlet connecting pipe extends from the side end of the end plate into the air inlet manifold and accommodates an air inlet sensor; the air outlet connecting pipe extends from the side end of the end plate into the air outlet manifold and accommodates an air outlet sensor; the cooling water inlet connecting pipe extends from the side end of the end plate into the cooling water inlet manifold and accommodates a cooling water inlet sensor; the cooling water outlet connecting pipe extends from the side end of the end plate into the cooling water outlet manifold and accommodates a cooling water outlet sensor; the hydrogen inlet connecting pipe extends from the side end of the end plate into the hydrogen inlet manifold and accommodates a hydrogen inlet sensor; and the hydrogen outlet connecting pipe extends from the side end of the end plate into the hydrogen outlet manifold and accommodates a hydrogen outlet sensor.

[0017] In one embodiment of the present invention, one or more of the air inlet connecting pipe, air outlet connecting pipe, cooling water inlet connecting pipe, cooling water outlet connecting pipe, hydrogen inlet connecting pipe, and hydrogen outlet connecting pipe are provided.

[0018] In one embodiment of the present invention, the end of the integrated end plate is provided with a plurality of screw holes.

[0019] In one embodiment of the present invention, the rear end plate is provided with a fuel cell stack tensioning bolt extending out of the surface of the rear end plate, the fuel cell stack tensioning bolt being used for fitting and connecting with the front end plate.

[0020] In one embodiment of the present invention, the front end plate is provided with first holes that respectively match the air inlet manifold, the air outlet manifold, the cooling water inlet manifold, the cooling water outlet manifold, the hydrogen inlet manifold, and the hydrogen outlet manifold.

[0021] In one embodiment of the present invention, the rear end plate is provided with a second hole that matches the first hole of the front end plate.

[0022] In one embodiment of the present invention, a first screw hole for mounting and fixing is provided at the edge of the integrated end plate; a second screw hole for mounting and fixing is provided at the edge of the front end plate.

[0023] In one embodiment of the present invention, the front end plate is connected to the integrated end plate through a first screw hole and a second screw hole.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) In the multi-purpose integrated parameter detection end plate of the fuel cell of the present invention, all parameter detection sensors used to detect hydrogen, air and cooling water inlet and outlet are located closest to the stack core. This allows for accurate measurement of operating parameters such as temperature, pressure and humidity at the same location at the same time, which effectively improves measurement accuracy and solves the problem of inaccurate detection parameters in traditional testing processes.

[0026] (2) In addition to the conventional functions of measuring temperature, pressure and humidity, the multi-purpose integrated parameter detection end plate of the fuel cell of the present invention can be extended to other sensors, such as hydrogen concentration sensors, which can more accurately and timely monitor the hydrogen concentration at the air outlet and ensure the safe operation of the measurement process; at the same time, it can also be used to detect parameters such as fuel concentration at the inlet and outlet under different fuel concentration conditions in special experiments.

[0027] (3) In the fuel cell multi-purpose integrated parameter detection end plate of the present invention, the integrated end plate can exist independently of the fuel cell and is easy to disassemble and install. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a multi-purpose integrated parameter detection endplate for fuel cells according to the present invention;

[0029] Figure 2 This is a front view of the integrated end plate in a multi-purpose integrated parameter detection end plate for fuel cells according to the present invention;

[0030] Figure 3 This is a perspective view of the integrated end plate in a multi-purpose integrated parameter detection end plate for fuel cells according to the present invention;

[0031] Figure 4 This is a structural exploded view of a multi-purpose integrated parameter detection endplate for fuel cells according to the present invention;

[0032] Numbered in the diagram: 1. Integrated end plate; 2. Hydrogen inlet manifold; 3. Hydrogen outlet manifold; 4. Air inlet manifold; 5. Air outlet manifold; 6. Cooling water inlet manifold; 7. Cooling water outlet manifold; 8. First hydrogen inlet connecting pipe; 9. Second hydrogen inlet connecting pipe; 10. First hydrogen outlet connecting pipe; 11. Second hydrogen outlet connecting pipe; 12. First air inlet connecting pipe; 13. Second air inlet connecting pipe; 14. First air outlet connecting pipe; 15. Second air outlet connecting pipe; 16. First cooling water inlet connecting pipe; 17. Second cooling water inlet connecting pipe; 18. First cooling water outlet connecting pipe; 19. Second cooling water outlet connecting pipe; 20. First screw hole; 21. Second screw hole; 22. Rear end plate; 23. Front end plate; 24. Fuel cell stack tensioning screw; 25. Fixing screw. Detailed Implementation

[0033] This invention provides a multi-purpose integrated parameter detection end plate for fuel cells, which is connected to the test port and pipeline of a test bench. It includes an integrated end plate, a front end plate, and a rear end plate. The rear end plate is fitted into the front end plate, and the side of the front end plate away from the rear end plate is movably connected to the integrated end plate.

[0034] The integrated end plate is a square plate, and is provided with an air inlet manifold, an air outlet manifold, a cooling water inlet manifold, a cooling water outlet manifold, a hydrogen inlet manifold, and a hydrogen outlet manifold; a connecting pipe for accommodating sensors is provided on the side of the end of the integrated end plate.

[0035] The connecting pipe is connected to the test port, and the air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold are connected to the pipeline.

[0036] In one embodiment of the present invention, the connecting pipe includes an air inlet connecting pipe, an air outlet connecting pipe, a cooling water inlet connecting pipe, a cooling water outlet connecting pipe, a hydrogen inlet connecting pipe, and a hydrogen outlet connecting pipe;

[0037] The sensors include an air inlet sensor, an air outlet sensor, a cooling water inlet sensor, a cooling water outlet sensor, a hydrogen inlet sensor, and a hydrogen outlet sensor.

[0038] In one embodiment of the present invention, the air inlet connecting pipe extends from the side end of the end plate into the air inlet manifold and accommodates an air inlet sensor; the air outlet connecting pipe extends from the side end of the end plate into the air outlet manifold and accommodates an air outlet sensor; the cooling water inlet connecting pipe extends from the side end of the end plate into the cooling water inlet manifold and accommodates a cooling water inlet sensor; the cooling water outlet connecting pipe extends from the side end of the end plate into the cooling water outlet manifold and accommodates a cooling water outlet sensor; the hydrogen inlet connecting pipe extends from the side end of the end plate into the hydrogen inlet manifold and accommodates a hydrogen inlet sensor; and the hydrogen outlet connecting pipe extends from the side end of the end plate into the hydrogen outlet manifold and accommodates a hydrogen outlet sensor.

[0039] In one embodiment of the present invention, one or more of the air inlet connecting pipe, air outlet connecting pipe, cooling water inlet connecting pipe, cooling water outlet connecting pipe, hydrogen inlet connecting pipe, and hydrogen outlet connecting pipe are provided.

[0040] In one embodiment of the present invention, the end of the integrated end plate is provided with a plurality of screw holes.

[0041] In one embodiment of the present invention, the rear end plate is provided with a fuel cell stack tensioning bolt extending out of the surface of the rear end plate, the fuel cell stack tensioning bolt being used for fitting and connecting with the front end plate.

[0042] In one embodiment of the present invention, the front end plate is provided with first holes that respectively match the air inlet manifold, the air outlet manifold, the cooling water inlet manifold, the cooling water outlet manifold, the hydrogen inlet manifold, and the hydrogen outlet manifold.

[0043] In one embodiment of the present invention, the rear end plate is provided with a second hole that matches the first hole of the front end plate.

[0044] In one embodiment of the present invention, a first screw hole for mounting and fixing is provided at the edge of the integrated end plate; a second screw hole for mounting and fixing is provided at the edge of the front end plate.

[0045] In one embodiment of the present invention, the front end plate is connected to the integrated end plate through a first screw hole and a second screw hole.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical 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 based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0050] Example 1

[0051] This embodiment provides a multi-purpose integrated detection end plate for fuel cells, including an integrated end plate 1, a front end plate 23 and a rear end plate 22;

[0052] The integrated end plate 1 is a square plate, and is provided with an air inlet manifold 4, an air outlet manifold 5, a cooling water inlet manifold 6, a cooling water outlet manifold 7, a hydrogen inlet manifold 2, and a hydrogen outlet manifold 3. The air inlet manifold 4, the cooling water inlet manifold 6, and the hydrogen inlet manifold 2 are located at one end of the integrated end plate 1. Figure 2 On the left side, air outlet manifold 5, cooling water outlet manifold 7, and hydrogen outlet manifold 3 are located at the other end of the integrated end plate 1. Figure 2 (Right side)

[0053] The integrated end plate 1 has the following components on its side: a first air inlet connecting pipe 12, a second air inlet connecting pipe 13, a first air outlet connecting pipe 14, a second air outlet connecting pipe 15, a first cooling water inlet connecting pipe 16, a second cooling water inlet connecting pipe 17, a first cooling water outlet connecting pipe 18, a second cooling water outlet connecting pipe 19, a first hydrogen inlet connecting pipe 8, a second hydrogen inlet connecting pipe 9, a first hydrogen outlet connecting pipe 10, and a second hydrogen outlet connecting pipe 11. The first air inlet connecting pipe 12 and the second air inlet connecting pipe 13 extend from the side end of the end plate into the air inlet manifold 4. The first air outlet connecting pipe... Pipe 14 and the second air outlet connecting pipe 15 extend from the side end of the end plate into the air outlet manifold 5; the first cooling water inlet connecting pipe 16 and the second cooling water inlet connecting pipe 17 extend from the side end of the end plate into the cooling water inlet manifold 6; the first cooling water outlet connecting pipe 18 and the second cooling water outlet connecting pipe 19 extend from the side end of the end plate into the cooling water outlet manifold 7; the first hydrogen inlet connecting pipe 8 and the second hydrogen inlet connecting pipe 9 extend from the side end of the end plate into the hydrogen inlet manifold 2; the first hydrogen outlet connecting pipe 10 and the second hydrogen outlet connecting pipe 11 extend from the side end of the end plate into the hydrogen outlet manifold 3.

[0054] Specifically, the first air inlet connecting pipe 12 houses a first air inlet sensor, and the second air inlet connecting pipe 13 houses a second air inlet sensor; the first air outlet connecting pipe 14 houses a first air outlet sensor, and the second air outlet connecting pipe 15 houses a second air outlet sensor; the first cooling water inlet connecting pipe 16 houses a first cooling water inlet sensor, and the second cooling water inlet connecting pipe 17 houses a second cooling water inlet sensor; the first cooling water outlet connecting pipe 18 houses a first cooling water outlet sensor, and the second cooling water outlet connecting pipe 19 houses a second cooling water outlet sensor; the first hydrogen inlet connecting pipe 8 houses a first hydrogen inlet sensor, and the second hydrogen inlet connecting pipe 9 houses a second hydrogen inlet sensor; the first hydrogen outlet connecting pipe 10 houses a first hydrogen outlet sensor, and the second hydrogen outlet connecting pipe 11 houses a second hydrogen outlet sensor.

[0055] The first air inlet sensor and the second air inlet sensor are selected from any combination of two of the following: temperature sensor, pressure sensor, humidity sensor, or hydrogen concentration sensor; the first air outlet sensor and the first air inlet sensor are of the same sensor type, and the second air outlet sensor and the second air inlet sensor are of the same sensor type.

[0056] The first cooling water inlet sensor and the second cooling water inlet sensor are selected from any combination of two of the following: temperature sensor, pressure sensor, humidity sensor, or hydrogen concentration sensor; the first cooling water outlet sensor and the first cooling water inlet sensor are of the same sensor type, and the second cooling water outlet sensor and the second cooling water inlet sensor are of the same sensor type.

[0057] The first hydrogen inlet sensor and the second hydrogen inlet sensor are selected from any combination of two of the following: temperature sensor, pressure sensor, humidity sensor, or hydrogen concentration sensor; the first hydrogen outlet sensor and the first hydrogen inlet sensor are of the same sensor type, and the second hydrogen outlet sensor and the second hydrogen inlet sensor are of the same sensor type.

[0058] The ends of the first air inlet connecting pipe 12, the second air inlet connecting pipe 13, the first air outlet connecting pipe 14, the second air outlet connecting pipe 15, the first cooling water inlet connecting pipe 16, the second cooling water inlet connecting pipe 17, the first cooling water outlet connecting pipe 18, the second cooling water outlet connecting pipe 19, the first hydrogen inlet connecting pipe 8, the second hydrogen inlet connecting pipe 9, the first hydrogen outlet connecting pipe 10, and the second hydrogen outlet connecting pipe 11, which are away from the integrated end plate 1, are connected to the test port of the test bench; the ends of the air inlet manifold 4, the air outlet manifold 5, the cooling water inlet manifold 6, the cooling water outlet manifold 7, the hydrogen inlet manifold 2, and the hydrogen outlet manifold 3, which are away from the integrated end plate 1, are connected to the pipeline of the test bench.

[0059] The front-end plate 23 is provided with a first air inlet hole, a first air outlet hole, a first cooling water inlet hole, a first cooling water outlet hole, a first hydrogen inlet hole, and a first hydrogen outlet hole, respectively, with the same diameter and matching position as the air inlet manifold 4, air outlet manifold 5, cooling water inlet manifold 6, cooling water outlet manifold 7, hydrogen inlet manifold 2, and hydrogen outlet manifold 3; the rear-end plate 22 is provided with a second air outlet hole, a second air outlet hole, a second air outlet hole, a third air outlet hole, a fourth air outlet hole, and a fifth hydrogen outlet hole, respectively, with the same position and a cross-sectional area difference not exceeding ±10% (to ensure accuracy). The device includes an inlet hole, a second air outlet hole, a second cooling water inlet hole, a second cooling water outlet hole, a second hydrogen inlet hole, and a second hydrogen outlet hole. A fuel cell stack tensioning bolt protruding from the surface of the rear end plate 22 is provided on the side end of the rear end plate 22. The fuel cell stack tensioning bolt is used to fit and connect the rear end plate 22 and the front end plate 23, and the contact surface between the two is sealed. A first screw hole 20 for mounting and fixing is provided at the edge of the integrated end plate 1. A second screw hole 21 for mounting and fixing is provided at the edge of the front end plate 23. The front end plate 23 and the integrated end plate 1 are connected by fixing bolts through the first screw hole 20 and the second screw hole 21, and the contact surface between the two is sealed.

[0060] In addition, the connection between the sensor and the various manifolds of the integrated end plate 1 is a sealed design to ensure that the reaction gas and coolant will not leak to the outside of the integrated end plate 1 through the sensor connector during the test.

[0061] During assembly, the front end plate 23 and the rear end plate 22 are first pressed to a predetermined pressure using a press. Then, they are fixed using the fuel cell stack tensioning screw 24 on the side of the rear end plate 22. Next, the integrated end plate 1 is fixed to the front end plate 23 using the outer fixing screw 25. The air inlet manifold 4, air outlet manifold 5, cooling water inlet manifold 6, cooling water outlet manifold 7, hydrogen inlet manifold 2, and hydrogen outlet manifold 3 are connected to the corresponding pipelines on the test bench. The ends of the first air inlet connecting pipe 12, the second air inlet connecting pipe 13, the first air outlet connecting pipe 14, the second air outlet connecting pipe 15, the first cooling water inlet connecting pipe 16, the second cooling water inlet connecting pipe 17, the first cooling water outlet connecting pipe 18, the second cooling water outlet connecting pipe 19, the first hydrogen inlet connecting pipe 8, the second hydrogen inlet connecting pipe 9, the first hydrogen outlet connecting pipe 10, and the second hydrogen outlet connecting pipe 11 away from the integrated end plate 1 are connected to the test port of the test bench. After all assembly and connection are completed, the test can be performed.

[0062] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the interpretation of the present invention, without departing from the scope of the invention, should be within the protection scope of the present invention.

Claims

1. A multi-purpose integrated parameter detection end plate for fuel cell, which is connected with test port and pipeline of test bench, characterized in that, It includes an integrated end plate, a front plate, and a rear plate; the rear plate is fitted and connected to the front plate, and the side of the front plate away from the rear plate is movably connected to the integrated end plate; The integrated end plate is a square plate, and is provided with an air inlet manifold, an air outlet manifold, a cooling water inlet manifold, a cooling water outlet manifold, a hydrogen inlet manifold, and a hydrogen outlet manifold; a connecting pipe for accommodating sensors is provided on the side of the end of the integrated end plate. The connecting pipe is connected to the test port, and the air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold are connected to the pipeline. The connecting pipes include an air inlet connecting pipe, an air outlet connecting pipe, a cooling water inlet connecting pipe, a cooling water outlet connecting pipe, a hydrogen inlet connecting pipe, and a hydrogen outlet connecting pipe. The sensors include an air inlet sensor, an air outlet sensor, a cooling water inlet sensor, a cooling water outlet sensor, a hydrogen inlet sensor, and a hydrogen outlet sensor. The air inlet connecting pipe extends from the side end of the end plate into the air inlet manifold and accommodates the air inlet sensor; the air outlet connecting pipe extends from the side end of the end plate into the air outlet manifold and accommodates the air outlet sensor; the cooling water inlet connecting pipe extends from the side end of the end plate into the cooling water inlet manifold and accommodates the cooling water inlet sensor; the cooling water outlet connecting pipe extends from the side end of the end plate into the cooling water outlet manifold and accommodates the cooling water outlet sensor; the hydrogen inlet connecting pipe extends from the side end of the end plate into the hydrogen inlet manifold and accommodates the hydrogen inlet sensor; the hydrogen outlet connecting pipe extends from the side end of the end plate into the hydrogen outlet manifold and accommodates the hydrogen outlet sensor. The air inlet connection pipe, air outlet connection pipe, cooling water inlet connection pipe, cooling water outlet connection pipe, hydrogen inlet connection pipe, and hydrogen outlet connection pipe are all provided in twos; During assembly, the front and rear plates are first pressed to a predetermined pressure using a press, then secured using the fuel cell stack tensioning screws on the side of the rear plate. Next, the integrated end plate is fixed to the front plate using the outer fixing screws. The air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold are connected to their respective pipes on the test bench. The ends of the first air inlet connecting pipe, second air inlet connecting pipe, first air outlet connecting pipe, second air outlet connecting pipe, first cooling water inlet connecting pipe, second cooling water inlet connecting pipe, first cooling water outlet connecting pipe, second cooling water outlet connecting pipe, first hydrogen inlet connecting pipe, second hydrogen inlet connecting pipe, first hydrogen outlet connecting pipe, and second hydrogen outlet connecting pipe, furthest from the integrated end plate, are connected to the test ports of the test bench. Once all assembly and connections are complete, testing can begin.

2. The universal integrated parameter detection end plate of a fuel cell according to claim 1, wherein The end of the integrated end plate is provided with several screw holes.

3. The universal integrated parameter detection end plate of a fuel cell according to claim 1, wherein The rear end plate is provided with a fuel cell stack tensioning bolt extending out of the surface of the rear end plate, which is used to fit and connect with the front end plate.

4. The fuel cell multi-purpose integrated parameter detection endplate according to claim 1, characterized in that, The front end plate is provided with first holes that are respectively matched with the air inlet manifold, air outlet manifold, cooling water inlet manifold, cooling water outlet manifold, hydrogen inlet manifold, and hydrogen outlet manifold.

5. The fuel cell multi-purpose integrated parameter detection endplate according to claim 4, characterized in that, The back end board is provided with a second hole that matches the first hole on the front end board.

6. The fuel cell multi-purpose integrated parameter detection endplate according to claim 1, characterized in that, The edge of the integrated end plate is provided with a first screw hole for installation and fixing; the edge of the front end plate is provided with a second screw hole for installation and fixing.

7. The fuel cell multi-purpose integrated parameter detection endplate according to claim 6, characterized in that, The front-end board and the integrated end board are connected through the first screw hole and the second screw hole.

Images