A fuel cell detection device

Abstract

The application relates to the technical field of fuel cell safety detection, in particular to a fuel cell detection device which comprises a support frame, a first notch is formed in the top end side wall of the support frame, a sealing plate is arranged on the inner side wall of the first notch, a first sealing groove is formed in the bottom end side wall of the sealing plate, a second sealing groove is formed in the top end side wall of the support frame, and a battery body is placed on the top end of the support frame. The fuel cell detection device can simulate different temperatures and slight vibrations through a vibration mechanism and a temperature adjusting assembly, can reproduce scenes such as bumping, high and low temperatures in ship driving, and can make the detection result closer to the actual application requirement. Moreover, the third motor and the angle sensor are used to realize multi-angle adjustment of puncture, the first electric sliding block and the third electric sliding block are combined, and the anti-damage capacity of the battery surface in any area under different impact directions can be accurately tested.

Description

Technical Field

[0001] This invention relates to the field of fuel cell safety testing technology, and in particular to a fuel cell testing device. Background Technology

[0002] As the global energy structure shifts towards a low-carbon model, fuel cells, as a highly efficient and clean energy conversion device, have been widely used in new energy vehicles, large ships, distributed power generation, and other fields. However, fuel cells typically contain flammable and explosive substances such as hydrogen, and their operating environment involves complex conditions such as temperature and pressure. Once structural damage, sealing failure, or thermal runaway occurs, it may lead to safety accidents such as leakage, combustion, or even explosion. Therefore, comprehensive and accurate testing of the safety of fuel cells has become an important link in ensuring their industrial application.

[0003] Large ships may encounter extreme conditions during navigation, such as collisions with underwater obstacles (e.g., reefs, floating objects), cargo displacement collisions, and hull vibration fatigue. Over time, these conditions may lead to tearing of fuel cell pipe interfaces. Puncture may directly damage the core structure of the fuel cell, causing hydrogen leakage. If an electrical spark is encountered, it may cause a compartment explosion. Current testing devices are not only cumbersome to operate and have low testing efficiency, but the transfer process may also affect the testing accuracy. Furthermore, after puncture testing, battery residue is difficult to clean, and residue accumulation can affect the accuracy of subsequent tests. Manual cleaning also poses safety hazards. In addition, the existing testing devices have a low degree of automation and rely heavily on manual operation, which not only increases labor costs but may also lead to testing errors due to human factors. To solve the above problems, we propose a fuel cell testing device. Summary of the Invention

[0004] The main objective of this invention is to provide a fuel cell testing device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A fuel cell testing device includes a support frame. A first slot is formed on the top side wall of the support frame, and a sealing plate is provided on the inner side wall of the first slot. A first sealing groove is formed on the bottom side wall of the sealing plate, and a second sealing groove is formed on the top side wall of the support frame. A battery body is placed on the top of the support frame. Two fixing blocks are provided on the front and rear side walls of the battery body. A cleaning mechanism is provided on the bottom side wall of the support frame to clean up the residue that falls after the battery is punctured. A vibration mechanism is provided on the top side wall of the support frame to vibrate the battery.

[0007] Preferably, the cleaning mechanism includes a first electric telescopic rod provided on the bottom side wall of the support frame, a first connecting plate provided at the telescopic end of each of the two first electric telescopic rods, a first housing fixedly connected to the corresponding side wall of the two first connecting plates, a first sealing strip provided on the top side wall of the first housing, a hole provided at the bottom of the first housing, and a valve body fixedly connected to the inner side wall of the hole, two first electric sliding grooves provided on the inner side wall of the first housing, and two second electric sliding grooves provided on the inner side wall of the first housing.

[0008] Preferably, a second motor is provided on one side wall of the first housing, and a bidirectional threaded rod is provided through the output end of the second motor through the one side wall of the first housing. The other end of the second motor is rotatably connected to the other side wall of the first housing. A cleaning plate is rotatably connected to the outer side wall of the bidirectional threaded rod. Two first motors are fixedly connected to the front side wall of the first housing. An inclined plate is provided through the output end of the first motor through the front end of the first housing. Two openings are opened on the bottom side wall of the first housing, and the corresponding openings are rotatably connected to the inclined plate.

[0009] Preferably, the inner wall of the first housing is provided with a puncture detection mechanism for puncturing the battery and detecting heat. The puncture detection mechanism includes a first electric slider slidably connected to the inner wall of a first electric slide groove. One end of each of the two first electric sliders is fixedly connected to the same first guide plate. A third electric slide groove is formed on the top side wall of the first guide plate. A third electric slider is slidably connected to the inner wall of the third electric slide groove. A first rotating plate is provided on the top side wall of the third electric slider. A third motor is provided on one side wall of the first rotating plate. A first rotating block is provided through the output end of the third motor through the first rotating plate.

[0010] Preferably, a second electric telescopic rod is provided on one side wall of the first rotating block, a fixed plate is provided at the telescopic end of the second electric telescopic rod, a piercing steel needle is provided at the other end of the fixed plate, an angle sensor is provided on one side wall of the fixed plate, and a third connecting plate is provided on the other side wall of the fixed plate.

[0011] Preferably, a plurality of first elastic components are provided on one side wall of the third connecting plate, and a second rotating plate is provided on the other end of each of the first elastic components. A second rotating block is rotatably connected to the inner side wall of the second rotating plate, and the other ends of the plurality of second rotating blocks are fixedly connected to the same cover plate. A temperature sensor is provided on the other end of the cover plate. A plurality of holes are opened on one side wall of the cover plate, and a nozzle is fixedly connected to the inner side wall of the corresponding hole. The puncture detection mechanism also includes a dry powder fire extinguisher fixedly connected to one side wall of the first housing. A telescopic transmission pipe is provided at the output end of the dry powder fire extinguisher, and the other end of the telescopic transmission pipe passes through the first housing and the third connecting plate and is fixedly connected to the cover plate.

[0012] Preferably, a leak detection mechanism for detecting gas at the battery puncture site is provided on one side wall of the first housing. The leak detection mechanism includes two second electric sliders slidably connected to the inner side walls of two second electric sliding grooves. The same second guide plate is fixedly connected to one side wall of the corresponding end of the two second electric sliders. A fourth electric sliding groove is opened on the top side wall of the second guide plate. A fourth electric slider is slidably connected to the inner side wall of the fourth electric sliding groove. A movable plate is provided on the top side wall of the fourth electric slider. A third electric telescopic rod is provided on the top side wall of the movable plate. A sleeve is provided at the telescopic end of the third electric telescopic rod. A gas sensor is provided at the bottom end of the inner side wall of the sleeve.

[0013] Preferably, the leak detection mechanism further includes a nitrogen tank fixedly connected to one side wall of the first housing, an air pump is provided on the top side wall of the nitrogen tank, an air delivery pipe is provided at the output end of the air pump, and the air delivery pipe passes through the first housing and is fixedly connected to the sleeve.

[0014] Preferably, the vibration mechanism includes two fixed frames fixedly connected to the top side wall of the support frame. Each of the two fixed frames has a fifth electric sliding groove at one corresponding end. Each of the two fifth electric sliding grooves has a fifth electric slider slidably connected to its inner side wall. The two fifth electric sliders have the same second housing fixedly connected to their corresponding ends. A temperature adjustment component is provided at the top of the inner side wall of the second housing. A fourth electric telescopic rod is provided at the top of the inner side wall of the second housing. A vibration plate is provided at the telescopic end of the fourth electric telescopic rod. A second sealing strip is provided on the bottom side wall of the second housing.

[0015] Preferably, the top sidewall of the support frame is provided with four positioning posts, and the outer sidewalls of the four positioning posts are provided with holes in a circular array. A sixth electric telescopic rod is fixedly connected to the inner sidewall of the corresponding hole. The telescopic ends of the plurality of sixth electric telescopic rods are fixedly connected to positioning plates. The top sidewall of the support frame is provided with four second slots. The bottom end of the inner sidewall of the four second slots is fixedly connected to a fifth electric telescopic rod. The telescopic ends of the four fifth electric telescopic rods are provided with buffer plates. The bottom end of the inner sidewall of the four second slots is fixedly connected to a second elastic component. The other end of the second elastic component is fixedly connected to the bottom end of the buffer plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This fuel cell testing device, through a vibration mechanism and temperature adjustment components, can simulate different temperatures and minor vibrations, reproducing scenarios such as turbulence, high and low temperatures experienced by ships during navigation, making the test results closer to actual application requirements. Furthermore, through a third motor and an angle sensor, it can achieve multi-angle adjustment of puncture. Combined with the first and third electric sliders, it can accurately test the damage resistance of any area on the battery surface under different impact directions, verifying the deformation resistance of the fuel cell shell and the integrity of the internal structure under different impact directions, covering various risks in ship navigation scenarios such as "obstacle impact frontal impact" and "oblique scraping".

[0018] 2. This fuel cell testing device features a leak detection mechanism that uses a sleeve and a gas sensor to accurately detect the hydrogen concentration at the puncture point and automatically initiates nitrogen purging to reduce the hydrogen concentration to a safe threshold. If the temperature sensor detects a high temperature, a dry powder fire extinguisher quickly suppresses combustion through its nozzle. The second housing and support frame are sealed by a second sealing strip, which, together with the first housing and support frame sealed by a first sealing strip, creates a double-sealed space to prevent hydrogen leakage into the external environment. The valve body can release pressure in a timely manner to prevent excessive pressure in the test chamber from damaging the equipment. Furthermore, the inclined plate and the cleaning plate driven by the bidirectional threaded rod can automatically collect and discharge puncture residue, avoiding time-consuming manual cleaning and secondary pollution. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0021] Figure 3 This is a partial structural diagram of the vibration mechanism of the present invention;

[0022] Figure 4 This is a partial cross-sectional view of the vibration mechanism of the present invention;

[0023] Figure 5 This is a partial cross-sectional view of the puncture detection mechanism of the present invention;

[0024] Figure 6 This is a second partial cross-sectional view of the puncture detection mechanism of the present invention;

[0025] Figure 7 For the present invention Figure 2 Enlarged view of point A in the middle;

[0026] Figure 8 This is a partial cross-sectional view of the cleaning mechanism of the present invention.

[0027] In the diagram: 1. Support frame; 2. Cleaning mechanism; 3. Puncture detection mechanism; 4. Leakage detection mechanism; 5. Vibration mechanism; 12. First sealing groove; 13. First slot; 14. Second sealing groove; 15. Sealing plate; 21. First housing; 22. First electric slide rail; 23. First sealing strip; 24. First connecting plate; 25. First electric telescopic rod; 26. Valve body; 27. Second electric slide rail; 28. First motor; 29. ​​Inclined plate; 2 91. Second motor; 292. Bidirectional threaded rod; 293. Cleaning plate; 31. First electric slider; 32. First guide plate; 33. Third electric slide rail; 34. Third electric slider; 35. First rotating plate; 36. Third motor; 37. First rotating block; 38. Dry powder fire extinguisher; 39. Second electric telescopic rod; 391. Fixing plate; 392. Angle sensor; 393. Piercing steel needle; 394. Third connecting plate; 395. Telescopic transmission 396. Supply pipe; 397. First elastic component; 398. Cover plate; 399. Nozzle; 399. Temperature sensor; 3991. Second rotating plate; 3992. Second rotating block; 41. Nitrogen tank; 42. Air pump; 43. Second electric slider; 44. Second guide plate; 45. Fourth electric slide rail; 46. Fourth electric slider; 47. Moving plate; 48. Third electric telescopic rod; 49. Sleeve; 491. Gas sensor; 492. Gas supply pipe; 51. Fixing frame; 52. Fifth electric sliding groove; 53. Fifth electric slider; 54. Second housing; 55. Second sealing strip; 56. Temperature adjustment component; 57. Fourth electric telescopic rod; 58. Vibration plate; 59. Second slot; 591. Fifth electric telescopic rod; 592. Buffer plate; 593. Second elastic component; 594. Positioning post; 595. Sixth electric telescopic rod; 596. Positioning plate; 6. Battery body; 61. Fixing block. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figure 1 - Figure 8 As shown, a fuel cell testing device includes a support frame 1. A first slot 13 is provided on the top side wall of the support frame 1. A sealing plate 15 is provided on the inner side wall of the first slot 13. A first sealing groove 12 is provided on the bottom side wall of the sealing plate 15. A second sealing groove 14 is provided on the top side wall of the support frame 1. A battery body 6 is placed on the top of the support frame 1. Two fixing blocks 61 are provided on the front and rear side walls of the battery body 6. A cleaning mechanism 2 is provided on the bottom side wall of the support frame 1 to clean up the residue that falls after the battery is punctured. A vibration mechanism 5 is provided on the top side wall of the support frame 1 to vibrate the battery.

[0030] In this embodiment, the cleaning mechanism 2 includes a first electric telescopic rod 25 provided on the bottom side wall of the support frame 1. The telescopic ends of the two first electric telescopic rods 25 are each provided with a first connecting plate 24. The side walls of the two first connecting plates 24 are fixedly connected to the same first housing 21. The top side wall of the first housing 21 is provided with a first sealing strip 23. The bottom end of the first housing 21 has a hole, and the inner side wall of the hole is fixedly connected to a valve body 26. The inner side wall of the first housing 21 has two first electric sliding grooves 22 and two second electric sliding grooves 27.

[0031] Specifically, the retraction of multiple first electric telescopic rods 25 causes the first housing 21 to rise, allowing the first sealing strip 23 to be inserted into the first sealing groove 12 at the bottom of the support frame 1, thereby forming a relatively closed test environment.

[0032] In this embodiment, a second motor 291 is provided on one side wall of the first housing 21. A bidirectional threaded rod 292 is provided through the output end of the second motor 291 through the side wall of the first housing 21. The other end of the second motor 291 is rotatably connected to the other side wall of the first housing 21. A cleaning plate 293 is rotatably connected to the outer side wall of the bidirectional threaded rod 292. Two first motors 28 are fixedly connected to the front side wall of the first housing 21. An inclined plate 29 is provided through the output end of the first motor 28 through the front end of the first housing 21. Two openings are opened on the bottom side wall of the first housing 21, and the corresponding openings are rotatably connected to the inclined plate 29.

[0033] Specifically, the two first motors 28 drive the two tilting plates 29 to rotate and open, so that both tilting plates 29 rotate to a vertical position. The residue that falls after the battery is punctured falls into the bottom of the first housing 21. Then, the second motor 291 drives the bidirectional threaded rod 292 to rotate, which drives the cleaning plate 293 to move back and forth, pushing the residue to the opening that is exposed after the tilting plate 29 is opened, thus completing the cleaning.

[0034] In this embodiment, the inner wall of the first housing 21 is provided with a puncture detection mechanism 3 for puncturing the battery and detecting heat. The puncture detection mechanism 3 includes a first electric slider 31 slidably connected to the inner wall of the first electric slide groove 22. The two first electric sliders 31 are fixedly connected to the same first guide plate 32 at their corresponding ends. A third electric slide groove 33 is opened on the top side wall of the first guide plate 32. A third electric slider 34 is slidably connected to the inner wall of the third electric slide groove 33. A first rotating plate 35 is provided on the top side wall of the third electric slider 34. A third motor 36 is provided on one side wall of the first rotating plate 35. A first rotating block 37 is provided through the output end of the third motor 36 through the first rotating plate 35.

[0035] Specifically, the first electric slider 31 slides in the first electric slide groove 22, driving the first guide plate 32 to move above the puncture position, and the third electric slider 34 slides in the third electric slide groove 33 to further fine-tune the puncture point position. The third motor 36 drives the first rotating block 37 to rotate, adjusting the puncture angle. The angle sensor 392 provides real-time feedback of angle data, aligning the puncture needle 393 with the target area of ​​the battery. The third motor 36 drives the first rotating block 37 to rotate.

[0036] In this embodiment, a second electric telescopic rod 39 is provided on one side wall of the first rotating block 37, a fixing plate 391 is provided at the telescopic end of the second electric telescopic rod 39, a piercing steel needle 393 is provided at the other end of the fixing plate 391, an angle sensor 392 is provided on one side wall of the fixing plate 391, and a third connecting plate 394 is provided on the other side wall of the fixing plate 391.

[0037] Specifically, the angle sensor 392 adjusts the puncture angle, and the second electric telescopic rod 39 pushes the puncture needle 393 to puncture the battery at a set speed. At this time, the cover plate 397 moves along with the puncture needle 393.

[0038] In this embodiment, a plurality of first elastic components 396 are provided on one side wall of the third connecting plate 394, and a second rotating plate 3991 is provided on the other end of each of the first elastic components 396. A second rotating block 3992 is rotatably connected to the inner side wall of the second rotating plate 3991. The other end of the plurality of second rotating blocks 3992 is fixedly connected to the same cover plate 397. A temperature sensor 399 is provided on the other end of the cover plate 397. A plurality of holes are opened on one side wall of the cover plate 397, and a nozzle 398 is fixedly connected to the inner side wall of the corresponding hole. The puncture detection mechanism 3 also includes a dry powder fire extinguisher 38 fixedly connected to one side wall of the first housing 21. A telescopic transmission pipe 395 is provided at the output end of the dry powder fire extinguisher 38. The other end of the telescopic transmission pipe 395 passes through the first housing 21 and the third connecting plate 394 and is fixedly connected to the cover plate 397.

[0039] Specifically, through the force of multiple first elastic components 396 and the rotational connection between the second rotating plate 3991 and the second rotating block 3992, the temperature sensor 399 can be tightly in contact with the bottom of the battery body 6. At the moment of puncture, the temperature sensor 399 on the cover plate 397 monitors the temperature change of the battery surface in real time and records the thermal runaway data. If the temperature rises abnormally, the dry powder fire extinguisher 38 delivers dry powder into the cover plate 397 through the telescopic transmission tube 395, and then sprays it through multiple nozzles 398, ready to extinguish the fire at any time.

[0040] In this embodiment, a gas leakage detection mechanism 4 for detecting gas at the battery puncture point is provided on one side wall of the first housing 21. The gas leakage detection mechanism 4 includes two second electric sliders 43 slidably connected to the inner side walls of two second electric sliding grooves 27. The same second guide plate 44 is fixedly connected to the corresponding side wall of the two second electric sliders 43. A fourth electric sliding groove 45 is provided on the top side wall of the second guide plate 44. A fourth electric slider 46 is slidably connected to the inner side wall of the fourth electric sliding groove 45. A moving plate 47 is provided on the top side wall of the fourth electric slider 46. A third electric telescopic rod 48 is provided on the top side wall of the moving plate 47. A sleeve 49 is provided at the telescopic end of the third electric telescopic rod 48. A gas sensor 491 is provided at the bottom end of the inner side wall of the sleeve 49.

[0041] Specifically, the second electric slider 43 slides in the second electric slide groove 27, driving the second guide plate 44 to move directly below the puncture point. The fourth electric slider 46 slides in the fourth electric slide groove 45, so that the sleeve 49 is directly below the puncture point. Then, the third electric telescopic rod 48 extends, so that the top of the sleeve 49 contacts the bottom of the battery body 6, thereby covering the puncture site completely with the sleeve 49. At this time, the leaking hydrogen gas is detected in real time by the gas sensor 491.

[0042] In this embodiment, the leak detection mechanism 4 also includes a nitrogen tank 41 fixedly connected to one side wall of the first housing 21. A gas pump 42 is provided on the top side wall of the nitrogen tank 41. A gas delivery pipe 492 is provided at the output end of the gas pump 42. The gas delivery pipe 492 passes through the first housing 21 and is fixedly connected to the sleeve 49.

[0043] Specifically, the gas pump 42 is started to draw nitrogen from the nitrogen tank 41 and inject it into the sleeve 49 through the gas pipe 492 to dilute the leaked hydrogen and prevent it from accumulating.

[0044] In this embodiment, the vibration mechanism 5 includes two fixed frames 51 fixedly connected to the top side wall of the support frame 1. Each of the two fixed frames 51 has a fifth electric sliding groove 52 at one corresponding end. Each of the two fifth electric sliding grooves 52 has a fifth electric slider 53 slidably connected to the inner side wall of the two fifth electric sliders 53. The two fifth electric sliders 53 have the same second housing 54 fixedly connected to one corresponding end. A temperature adjustment component 56 is provided at the top of the inner side wall of the second housing 54. A fourth electric telescopic rod 57 is provided at the top of the inner side wall of the second housing 54. A vibration plate 58 is provided at the telescopic end of the fourth electric telescopic rod 57. A second sealing strip 55 is provided at the bottom side wall of the second housing 54.

[0045] Specifically, the fifth electric slider 53 slides downward in the fifth electric slide groove 52, causing the second housing 54 to move downward, so that the second sealing strip 55 is inserted into the second sealing groove 14 to form a closed test space. The temperature adjustment component 56 adjusts the temperature inside the chamber to the target value, so that the battery body 6 can be punctured at different temperatures. The fourth electric telescopic rod 57 pushes the vibration plate 58 to contact the battery surface and applies fine vibration at a certain frequency to simulate the turbulence of a ship sailing for a certain period of time, testing the structural stability and performance changes of the battery under vibration conditions.

[0046] In this embodiment, four positioning posts 594 are provided on the top side wall of the support frame 1. The outer side walls of the four positioning posts 594 are provided with holes in a circular array, and a sixth electric telescopic rod 595 is fixedly connected to the inner side wall of the corresponding hole. The telescopic ends of the multiple sixth electric telescopic rods 595 are fixedly connected to positioning plates 596. Four second slots 59 are provided on the top side wall of the support frame 1. The bottom ends of the inner side walls of the four second slots 59 are fixedly connected to fifth electric telescopic rods 591. The telescopic ends of the four fifth electric telescopic rods 591 are provided with buffer plates 592. The bottom ends of the inner side walls of the four second slots 59 are fixedly connected to second elastic components 593. The other end of the second elastic component 593 is fixedly connected to the bottom end of the buffer plate 592.

[0047] Specifically, multiple fifth electric telescopic rods 591 extend, driving the buffer plate 592 to rise, making the top of the buffer plate 592 flush with the bottom of the positioning plate 596. Then, the fixing block 61 is placed on the outside of the four positioning posts 594. Subsequently, multiple sixth electric telescopic rods 595 extend, pushing the positioning plate 596 towards the inner wall of the fixing block 61 until the positioning plate 596 contacts the inner wall of the fixing block 61 and stops.

[0048] It should be noted that this invention is a fuel cell testing device. The user places the fuel cell body 6 on top of the support frame 1. Multiple fifth electric telescopic rods 591 extend, respectively driving the buffer plate 592 upwards until the top of the buffer plate 592 is flush with the bottom of the positioning plate 596. Then, the fixing blocks 61 are respectively placed on the outside of the four positioning posts 594. Subsequently, multiple sixth electric telescopic rods 595 extend, pushing the positioning plate 596 towards the inner wall of the fixing block 61 until the positioning plate 596 contacts the inner wall of the fixing block 61, thus ensuring the testing process. Once the battery is in a stable position, it is initially positioned using four positioning posts 594. At this point, the second housing 54 is directly above the battery. Subsequently, the fifth electric slider 53 slides downward in the fifth electric slide groove 52, causing the second housing 54 to move downward and the second sealing strip 55 to be inserted into the second sealing groove 14, forming a closed test space. Then, the fifth electric slider 53 stops moving, and at the same time, multiple first electric telescopic rods 25 retract, causing the first housing 21 to rise, so that the first sealing strip 23 is inserted into the first sealing groove 12 at the bottom of the support frame 1, thereby forming a relatively closed test environment.

[0049] The first electric slider 31 slides in the first electric slide groove 22, driving the first guide plate 32 to move above the puncture position. The third electric slider 34 slides in the third electric slide groove 33 to further fine-tune the puncture point position. The third motor 36 drives the first rotating block 37 to rotate, adjusting the puncture angle. The angle sensor 392 provides real-time angle data feedback, aligning the puncture needle 393 with the target area of ​​the battery. The third motor 36 drives the first rotating block 37 to rotate, and the angle sensor 392 adjusts the puncture angle. The second electric telescopic rod 39 pushes the puncture needle 393 to puncture the battery at a set speed. At this time, the cover plate 397 moves along with the puncture needle 393, and the force of multiple first elastic components 396 and the second rotating plate 39... 91 is rotatably connected to the second rotating block 3992, so that the temperature sensor 399 can be tightly in contact with the bottom of the battery body 6. At the moment of puncture, the temperature sensor 399 on the cover plate 397 monitors the temperature change of the battery surface in real time and records the thermal runaway data. If the temperature rises abnormally, the dry powder fire extinguisher 38 delivers dry powder into the cover plate 397 through the telescopic transmission tube 395, and then sprays it through multiple nozzles 398, ready to extinguish the fire at any time. After puncture, the second electric telescopic rod 39 pulls the puncture steel needle 393 away from the bottom of the battery. Then the second electric slider 43 slides in the second electric slide groove 27, driving the second guide plate 44 to move directly below the puncture point. The fourth electric slider 46 slides in the fourth electric slide groove 45, so that the sleeve 49 is positioned at the puncture point. Directly below the puncture point, the third electric telescopic rod 48 extends, bringing the top of the sleeve 49 into contact with the bottom of the battery body 6, thus completely covering the puncture site. At this time, the gas sensor 491 detects leaking hydrogen in real time to assess the battery's seal. If a hydrogen leak is detected, the gas pump 42 is activated to draw nitrogen from the nitrogen tank 41 and inject it into the sleeve 49 through the gas pipe 492 to dilute the leaking hydrogen and prevent its accumulation. The valve 26 is also opened to prevent excessive gas pressure inside the first housing 21. If there is no significant temperature change, the first electric slider 31 slides in the first electric slide groove 22, and the third electric slider 34 slides in the third electric slide groove 33, readjusting the puncture point position and performing further punctures on different target areas at the bottom of the battery body 6. The battery body 6 is punctured, and the first rotating block 37 can be rotated by the third motor 36. The puncture angle can be adjusted by the angle sensor 392, so that the puncture steel needle 393 can simulate impacts on the bottom of the battery body 6 from different directions. If there is no hydrogen leakage at each puncture point, the second electric slider 43 slides in the second electric slide groove 27, and the fourth electric slider 46 slides in the fourth electric slide groove 45, so that the sleeve 49 is again directly below the next puncture point and the sleeve 49 completely covers the puncture area for another test. At the same time as the test, the temperature adjustment component 56 starts to work, adjusting the temperature in the chamber to the target value, so that the battery body 6 can be punctured at different temperatures. The fourth electric telescopic rod 57 pushes the vibrating plate 58 to contact the battery surface.Fine vibrations are applied at a certain frequency to simulate the turbulence of a ship during navigation, and this process is continued for a certain period of time to test the structural stability and performance changes of the battery under vibration conditions. Simultaneously, multiple fifth electric telescopic rods 591 begin to retract, while multiple second elastic components 593 provide cushioning.

[0050] After the test is completed, the puncture detection mechanism 3 and the leakage detection mechanism 4 are reset. The two first motors 28 drive the two inclined plates 29 to rotate and open, so that the two inclined plates 29 are rotated to a vertical position. The residue that fell after the battery was punctured fell into the bottom of the first housing 21. Then the second motor 291 drives the bidirectional threaded rod 292 to rotate, which drives the cleaning plate 293 to move back and forth, pushing the residue to the opening that was leaked after the inclined plate 29 was opened, thus completing the cleaning.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A fuel cell testing device, comprising a support frame (1), characterized in that: The support frame (1) has a first slot (13) on its top side wall, a sealing plate (15) on its inner side wall, a first sealing groove (12) on its bottom side wall, a second sealing groove (14) on its top side wall, a battery body (6) on its top, two fixing blocks (61) on its front and rear side walls, a cleaning mechanism (2) on its bottom side wall for cleaning up the residue that falls after the battery is punctured, and a vibration mechanism (5) on its top side wall for vibrating the battery. The cleaning mechanism (2) includes the bottom of the support frame (1). The first electric telescopic rod (25) is provided on the end side wall. The telescopic ends of the two first electric telescopic rods (25) are provided with first connecting plates (24). The two first connecting plates (24) are fixedly connected to the same first housing (21) on one side wall. The top side wall of the first housing (21) is provided with a first sealing strip (23). The bottom end of the first housing (21) is provided with a hole, and the inner side wall of the hole is fixedly connected with a valve body (26). The inner side wall of the first housing (21) is provided with two first electric sliding grooves (22). The inner side wall of the first housing (21) is provided with two second electric sliding grooves (27). A second motor (291) is provided on one side wall of the first housing (21). The output end of the second motor (291) is provided with a bidirectional threaded rod (292) that penetrates one side wall of the first housing (21). The other end of the second motor (291) is rotatably connected to the other side wall of the first housing (21). A cleaning plate (293) is rotatably connected to the outer side wall of the bidirectional threaded rod (292). Two first motors (28) are fixedly connected to the front side wall of the first housing (21). The output end of the first motor (28) is provided with an inclined plate (29) that penetrates the front end of the first housing (21). Two openings are opened on the bottom side wall of the first housing (21), and the corresponding openings are rotatably connected to the inclined plate (29). A puncture point is provided on the inner side wall of the first housing (21) to puncture the battery and detect heat. The puncture detection mechanism (3) includes a first electric slider (31) slidably connected to the inner side wall of the first electric slide groove (22). The two first electric sliders (31) are fixedly connected to the same first guide plate (32) at their corresponding ends. A third electric slide groove (33) is opened on the top side wall of the first guide plate (32). A third electric slider (34) is slidably connected to the inner side wall of the third electric slide groove (33). A first rotating plate (35) is provided on the top side wall of the third electric slider (34). A third motor (36) is provided on one side wall of the first rotating plate (35). A first rotating block (37) is provided through the output end of the third motor (36) through the first rotating plate (35).

2. The fuel cell testing device according to claim 1, characterized in that: The first rotating block (37) has a second electric telescopic rod (39) on one side wall. The telescopic end of the second electric telescopic rod (39) has a fixing plate (391). The other end of the fixing plate (391) has a piercing steel needle (393). The fixing plate (391) has an angle sensor (392) on one side wall. The fixing plate (391) has a third connecting plate (394) on the other side wall.

3. The fuel cell testing device according to claim 2, characterized in that: The third connecting plate (394) has a plurality of first elastic components (396) on one side wall. The other end of each of the first elastic components (396) is provided with a second rotating plate (3991). The inner side wall of the second rotating plate (3991) is rotatably connected with a second rotating block (3992). The other end of the plurality of second rotating blocks (3992) is fixedly connected to the same cover plate (397). The other end of the cover plate (397) is provided with a temperature sensor (399). The cover plate (397) has a plurality of holes on one side wall, and a nozzle (398) is fixedly connected to the inner side wall of the corresponding hole. The puncture detection mechanism (3) also includes a dry powder fire extinguisher (38) fixedly connected to one side wall of the first housing (21). The output end of the dry powder fire extinguisher (38) is provided with a telescopic transmission pipe (395). The other end of the telescopic transmission pipe (395) passes through the first housing (21) and the third connecting plate (394) and is fixedly connected to the cover plate (397).

4. The fuel cell testing device according to claim 1, characterized in that: The first housing (21) has a leak detection mechanism (4) for detecting gas at the battery puncture point on one side wall. The leak detection mechanism (4) includes two second electric sliders (43) that are slidably connected to the inner side walls of two second electric sliding grooves (27). The two second electric sliders (43) are fixedly connected to the same second guide plate (44) on one side wall of their corresponding ends. The second guide plate (44) has a fourth electric sliding groove (45) on the top side wall. The fourth electric slider (46) is slidably connected to the inner side wall of the fourth electric sliding groove (45). The fourth electric slider (46) has a moving plate (47) on the top side wall. The moving plate (47) has a third electric telescopic rod (48) on the top side wall. The third electric telescopic rod (48) has a sleeve (49) on its telescopic end. The sleeve (49) has a gas sensor (491) on the bottom end of its inner side wall.

5. A fuel cell testing device according to claim 4, characterized in that: The leak detection mechanism (4) also includes a nitrogen tank (41) fixedly connected to one side wall of the first housing (21). A gas pump (42) is provided on the top side wall of the nitrogen tank (41). A gas delivery pipe (492) is provided at the output end of the gas pump (42). The gas delivery pipe (492) passes through the first housing (21) and is fixedly connected to the sleeve (49).

6. The fuel cell testing device according to claim 1, characterized in that: The vibration mechanism (5) includes two fixed frames (51) fixedly connected to the top side wall of the support frame (1). Each of the two fixed frames (51) has a fifth electric slide groove (52) at one corresponding end. Each of the two fifth electric slide grooves (52) has a fifth electric slider (53) slidably connected to the inner side wall of the two fifth electric sliders (53). Each of the two fifth electric sliders (53) has a second housing (54) fixedly connected to one corresponding end. A temperature adjustment component (56) is provided at the top of the inner side wall of the second housing (54). A fourth electric telescopic rod (57) is provided at the top of the inner side wall of the second housing (54). A vibration plate (58) is provided at the telescopic end of the fourth electric telescopic rod (57). A second sealing strip (55) is provided at the bottom side wall of the second housing (54).

7. A fuel cell testing device according to claim 1, characterized in that: The support frame (1) has four positioning posts (594) on its top side wall. The outer side wall of each of the four positioning posts (594) is provided with holes in a circular array. The inner side wall of each hole is fixedly connected with a sixth electric telescopic rod (595). The telescopic ends of each of the six electric telescopic rods (595) are fixedly connected with positioning plates (596). The support frame (1) has four second slots (59) on its top side wall. The bottom of the inner side wall of each of the four second slots (59) is fixedly connected with a fifth electric telescopic rod (591). The telescopic ends of each of the four fifth electric telescopic rods (591) are provided with buffer plates (592). The bottom of the inner side wall of each of the four second slots (59) is fixedly connected with a second elastic component (593). The other end of the second elastic component (593) is fixedly connected to the bottom end of the buffer plate (592).

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