Performance testing device of hydrogen storage fuel cell for new energy automobile

Abstract

The invention relates to the technical field of hydrogen storage battery testing, in particular to a performance testing device of a hydrogen storage fuel battery for a new energy automobile, which comprises a base, a testing assembly is arranged on the upper surface of the base, a positioning assembly is arranged in the testing assembly, and a sealing assembly is arranged at the top of the testing assembly. The testing assembly comprises a box body fixedly installed on the base, one side of the box body is communicated with a nitrogen and hydrogen pipe, a water pump is fixedly installed on the upper surface of the base, a water outlet of the water pump is communicated with a water injection pipe, one end of the water injection pipe is communicated with one side of the box body, and the other side of the box body is communicated with a water outlet pipe. The surface of the water outlet pipe communicates with a control valve. According to the invention, through the arrangement of the test assembly and the positioning assembly, automatic clamping operation of the battery is facilitated in the use process, the position of the battery is prevented from shifting in the test process, and the stability of the battery in the test process is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage battery testing, and particularly to a performance testing device for a hydrogen storage fuel cell used in a new energy vehicle. Background Art

[0002] A fuel cell is a power generation device that directly converts the chemical energy existing in a fuel and an oxidant into electrical energy. The fuel and air are respectively fed into the fuel cell, and electricity is miraculously produced. It has a positive electrode, a negative electrode, and an electrolyte on its surface, resembling a storage battery. However, in essence, it cannot "store electricity" but is a "power plant". The principle of a fuel cell is an electrochemical device, and its composition is the same as that of a general battery. Its single cell is composed of two electrodes, a negative electrode (i.e., a fuel electrode) and a positive electrode (i.e., an oxidant electrode), as well as an electrolyte. The difference is that the active substances of a general battery are stored inside the battery. Therefore, the battery capacity is limited.

[0003] During the development process of fuel cell products, performance degradation often occurs. Hydrogen-air interfaces are easily generated during the startup and shutdown of fuel cells, poor internal water management, uneven gas distribution, and system failures, etc. The high potential generated therefrom has a serious impact on the catalyst carrier, diffusion layer, and membrane. Another frequently occurring degradation mechanism is the degradation caused by potential alternation. During the transient process, the electrode potential, the stoichiometric ratio of the supplied gas, the internal temperature, the internal pressure, and the water state experience rapid fluctuations, thereby accelerating the decline of the fuel cell. The dynamic process will also cause the phenomena of flooding and membrane drying, resulting in a rapid decrease in battery performance, but it is reversible. In addition, the performance degradation caused by the long-term parking of the fuel cell for a period of time is also reversible. We can restore the performance of the fuel cell through low-temperature and high-humidity tests, and thus a test device for restoring the performance of the fuel cell is used to conduct a restoration test on it.

[0004] The current testing devices on the market are inconvenient to perform automatic positioning operations on the battery after it is placed during actual application, which will cause the position of the battery to shift during the subsequent restoration test, affecting the restoration test of the battery. At the same time, during the test process, it is also impossible to ensure the constant pressure inside the device and the warning operation, affecting the test safety of the device.

[0005] In view of this, the present invention proposes a performance testing device for a hydrogen storage fuel cell used in a new energy vehicle to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to propose a performance testing device for a hydrogen storage fuel cell used in a new energy vehicle, which has the advantages of automatically limiting the position of the battery during testing, etc., and solves the problem of the position shift of the battery during the test process.

[0007] To achieve the above object, the present invention provides the following technical solutions: A performance testing device for a hydrogen storage fuel cell used in a new energy vehicle, including a base, on the upper surface of the base is provided a testing assembly, inside the testing assembly is provided a positioning assembly, on the top of the testing assembly is provided a sealing assembly, and on the top of the sealing assembly is provided a pressure relief warning assembly.

[0008] The testing assembly includes a box body fixedly installed on the base, one side of the box body is communicated with a nitrogen-hydrogen gas pipe, on the upper surface of the base is fixedly installed a water pump, the water outlet of the water pump is communicated with a water injection pipe, one end of the water injection pipe is communicated with one side of the box body, the other side of the box body is communicated with a water outlet pipe, the surface of the water outlet pipe is communicated with a control valve, the surfaces of the nitrogen-hydrogen gas pipes are all communicated with gas valves, and the surface of the water injection pipe is communicated with an electromagnetic valve.

[0009] The positioning assembly includes two groups of vertical pipes fixedly installed on the inner bottom wall of the box body, inside the vertical pipes are slidably connected with pistons, on the top of the pistons are fixedly installed inverted U-shaped rods, the tops of the inverted U-shaped rods penetrate through the tops of the vertical pipes and extend to the outside of the vertical pipes and are fixedly installed with extrusion blocks, between the two vertical pipes on the same side is fixedly installed an airbag, on the top of the airbag is fixedly installed a protection plate, both sides of the airbag are communicated with connecting air pipes, one end of the connecting air pipe sequentially penetrates through one side of the bottom of the vertical pipe and extends to the outside of the vertical pipe and is communicated with the top of the vertical pipe, one end of the nitrogen-hydrogen gas pipe is communicated with one side of the airbag, and leakage holes are opened on one side of the vertical pipe.

[0010] As a preferred technical solution, on the bottom of the base is provided a support adjustment assembly, the support adjustment assembly includes square pipes fixedly installed at the four corners of the bottom of the base, on the inner top wall of the square pipes are fixedly installed hydraulic rods, on the bottom of the hydraulic rods are fixedly installed brackets, inside the brackets are rotatably connected with rollers through a rotating shaft, on the bottom of the square pipes are fixedly installed mounting plates, on the mounting plates are opened mounting holes, the mounting holes are oblong holes, and on the lower surface of the mounting plates are opened anti-slip lines.

[0011] As a preferred technical solution, at the four corners of the bottom of the piston are all fixedly installed return springs, the bottoms of the return springs are fixedly connected with the inner bottom wall of the vertical pipe, the surface of the piston is slidably connected with the inner wall of the vertical pipe, and the piston is adapted to the vertical pipe.

[0012] As a preferred technical solution, the sealing assembly includes a sealing door hinged to the upper surface of the box body through a hinge. The lower surface of the sealing door fits against the top of the box body. A handle and a limiting block are fixedly installed on the upper surface of the sealing door. A clamping block is fixedly installed on one side of the box body. A cavity is formed inside the clamping block. A sliding plate is slidably connected inside the cavity. One side of the sliding plate is fixedly installed with a clamping rod. One end of the clamping rod penetrates through the clamping block and extends to the outside of the clamping block. The end of the clamping rod located outside the clamping block is clamped to one side of the limiting block. A clamping groove for the clamping rod to pass through is formed on one side of the limiting block. The end of the clamping rod located outside the clamping block is hemispherical. One side of the sliding plate is fixedly installed with a pull rod. One end of the pull rod penetrates through the clamping block and extends to the outside of the clamping block. An extrusion spring is arranged around the surface of the pull rod. One end of the extrusion spring is fixedly connected to one side of the sliding plate, and the other end of the extrusion spring is fixedly connected to one side of the inner wall of the cavity.

[0013] As a preferred technical solution, a round hole for the clamping rod to pass through is formed on one side of the clamping block. The inner wall of the round hole is slidably connected to the surface of the clamping rod. A pull hole for the pull rod to pass through is formed on the other side of the clamping block. A pulling plate is fixedly installed at the end of the pull rod located outside the clamping rod. Anti-slip lines are formed on the surface of the pulling plate.

[0014] As a preferred technical solution, a timing component is arranged on the front surface of the box body. The timing component includes positioning rods fixedly installed on both sides of the front surface of the box body. A limiting groove is formed on one side of the positioning rod. A T-shaped sliding rod is slidably connected inside the limiting groove. The opposite sides of the two T-shaped sliding rods are fixedly connected through a moving plate. A timer is fixedly installed on the front surface of the moving plate.

[0015] As a preferred technical solution, the pressure relief warning component includes a pressure relief pipe communicated with the sealing door. A pull spring is fixedly installed on the inner bottom wall of the pressure relief pipe. A piston plate is fixedly installed at the top of the pull spring. The piston plate is made of rubber. A positioning frame is fixedly installed at the top of the pressure relief pipe. A conical rod is fixedly installed at the bottom of the positioning frame. A piston rod is fixedly installed at the bottom of the conical rod. The bottom of the piston rod penetrates through the piston plate and extends below the piston plate. A limiting baffle is fixedly installed at the bottom of the piston rod.

[0016] As a preferred technical solution, a touch switch is fixedly installed on the upper surface of the limiting baffle. The touch switch is electrically connected to an external alarm.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting the testing component and the positioning component, the present invention facilitates the automatic clamping operation of the battery during use and avoids the position deviation of the battery during testing, maintaining the stability of the battery during testing.

[0018] 2. By setting up a sealing component and a pressure relief warning component, the present invention maintains the airtightness of the device during use. At the same time, it can also monitor and give early warnings about the test pressure inside the device according to the requirements during the test, enabling the battery to be kept in a constant-pressure environment and improving the test accuracy of the device.

[0019] 3. By setting up a support and adjustment component, the present invention facilitates the adjustment of the support height of the device according to the placement position of the device during use, thus facilitating the stable placement of the device and facilitating the subsequent test of the battery.

[0020] 4. By setting up a timing component, the present invention facilitates the quick disassembly and assembly operation of the timer during use. At the same time, it facilitates the control of time during the test and maintains the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a first-perspective three-dimensional sectional structural schematic diagram of the present invention; Figure 3 is a second-perspective three-dimensional sectional structural schematic diagram of the present invention; Figure 4 is a third-perspective three-dimensional sectional structural schematic diagram of the present invention; Figure 5 is a fourth-perspective three-dimensional sectional structural schematic diagram of the present invention; Figure 6 is the present invention Figure 2 enlarged schematic diagram of the structure at A in; Figure 7 is the present invention Figure 3 enlarged schematic diagram of the structure at B in; Figure 8 is the present invention Figure 3 enlarged schematic diagram of the structure at C in; Figure 9 is the present invention Figure 4 enlarged schematic diagram of the structure at D in; Figure 10 is a schematic diagram of the process structure of the present invention.

[0023] In the figure: 1. Base; 2. Test components; 200. Box body; 201. Nitrogen-hydrogen gas pipe; 202. Solenoid valve; 203. Water pump; 204. Water injection pipe; 205. Water outlet pipe; 206. Control valve; 207. Air valve; 3. Positioning components; 300. Vertical pipe; 301. Piston; 302. Inverted U-shaped rod; 303. Extrusion block; 304. Airbag; 305. Protection plate; 306. Connecting air pipe; 307. Return spring; 4. Sealing components; 400. Sealing door; 401. Restriction block; 402. Clamping block; 403. Sliding plate; 404. Clamping rod; 405. Pull rod; 406. Extrusion spring; 5. Pressure relief warning components; 500. Pressure relief pipe; 501. Pull spring; 502. Piston plate; 503. Positioning frame; 504. Conical rod; 505. Piston rod; 506. Limit baffle; 507. Touch switch; 6. Support adjustment components; 600. Square pipe; 601. Hydraulic rod; 602. Bracket; 603. Roller; 604. Mounting plate; 7. Timing components; 700. Positioning rod; 701. T-shaped slide bar; 702. Moving plate; 703. Timer. Detailed implementation mode

[0024] The following details the implementation modes of the present invention. Examples of the implementation modes are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following disclosure provides many different implementation modes or examples to implement different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention can repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various implementation modes and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0027] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0028] According to the attached Figure 1-10 As shown, an embodiment of the present invention provides a performance testing device for a hydrogen storage fuel cell used in a new energy vehicle, including a base 1. A support adjustment component 6 is provided at the bottom of the base 1. The support adjustment component 6 includes square tubes 600 fixedly installed at the four corners of the bottom of the base 1. The inner top wall of the square tube 600 is fixedly installed with a hydraulic rod 601. The bottom of the hydraulic rod 601 is fixedly installed with a bracket 602. A roller 603 is rotatably connected to the inside of the bracket 602 through a rotating shaft. The bottom of the square tube 600 is fixedly installed with a mounting plate 604. Mounting holes are provided on the mounting plate 604. The mounting holes are oblong holes, and anti-slip patterns are provided on the lower surface of the mounting plate 604.

[0029] By providing the support adjustment component 6, during use, it is convenient to adjust the support height of the device according to the position where the device is placed, so as to facilitate the stable placement of the device and facilitate the subsequent testing of the battery.

[0030] A testing component 2 is provided on the upper surface of the base 1. A positioning component 3 is provided inside the testing component 2. A sealing component 4 is provided on the top of the testing component 2. A pressure relief warning component 5 is provided on the top of the sealing component 4.

[0031] The testing component 2 includes a box body 200 fixedly installed on the base 1. One side of the box body 200 is communicated with a nitrogen-hydrogen gas pipe 201. A water pump 203 is fixedly installed on the upper surface of the base 1. The water outlet of the water pump 203 is communicated with a water injection pipe 204. One end of the water injection pipe 204 is communicated with one side of the box body 200. The other side of the box body 200 is communicated with a water outlet pipe 205. A control valve 206 is communicated with the surface of the water outlet pipe 205. A gas valve 207 is communicated with the surface of the nitrogen-hydrogen gas pipe 201. An electromagnetic valve 202 is communicated with the surface of the water injection pipe 204.

[0032] The positioning component 3 includes two groups of vertical tubes 300 fixedly installed on the inner bottom wall of the box body 200. A piston 301 is slidably connected inside the vertical tube 300. A U-shaped rod 302 is fixedly installed at the top of the piston 301. The top of the U-shaped rod 302 penetrates through the top of the vertical tube 300 and extends to the outside of the vertical tube 300, and an extrusion block 303 is fixedly installed. An airbag 304 is fixedly installed between the two vertical tubes 300 on the same side. A protective plate 305 is fixedly installed at the top of the airbag 304. Both sides of the airbag 304 are communicated with a connecting air pipe 306. One end of the connecting air pipe 306 sequentially penetrates through one side of the bottom of the vertical tube 300 and extends to the outside of the vertical tube 300 and is communicated with the top of the vertical tube 300. One end of the nitrogen-hydrogen gas pipe 201 is communicated with one side of the airbag 304. Leak holes are opened on one side of the vertical tube 300. Four corners of the bottom of the piston 301 are fixedly installed with return springs 307. The bottom of the return spring 307 is fixedly connected with the inner bottom wall of the vertical tube 300. The surface of the piston 301 is slidably connected with the inner wall of the vertical tube 300, and the piston 301 is adapted to the vertical tube 300.

[0033] Through the arranged testing component 2 and positioning component 3, it is convenient to automatically clamp the battery during use, and avoid the position of the battery from shifting during the test, maintaining the stability of the battery during the test.

[0034] As a preference of this embodiment, the sealing component 4 includes a sealing door 400 hinged to the upper surface of the box body 200 through a hinge. The lower surface of the sealing door 400 fits with the top of the box body 200. A handle and a limiting block 401 are fixedly installed on the upper surface of the sealing door 400. A clamping block 402 is fixedly installed on one side of the box body 200. A cavity is opened inside the clamping block 402. A sliding plate 403 is slidably connected inside the cavity. A clamping rod 404 is fixedly installed on one side of the sliding plate 403. One end of the clamping rod 404 penetrates through the clamping block 402 and extends to the outside of the clamping block 402. One end of the clamping rod 404 located outside the clamping block 402 is clamped with one side of the limiting block 401. A clamping groove for the clamping rod 404 to pass through is opened on one side of the limiting block 401. One end of the clamping rod 404 located outside the clamping block 402 is hemispherical. A pull rod 405 is fixedly installed on one side of the sliding plate 403. One end of the pull rod 405 penetrates through the clamping block 402 and extends to the outside of the clamping block 402. An extrusion spring 406 is arranged around the surface of the pull rod 405. One end of the extrusion spring 406 is fixedly connected with one side of the sliding plate 403. The other end of the extrusion spring 406 is fixedly connected with one side of the inner wall of the cavity. A round hole for the clamping rod 404 to pass through is opened on one side of the clamping block 402. The inner wall of the round hole is slidably connected with the surface of the clamping rod 404. A pull hole for the pull rod 405 to pass through is opened on the other side of the clamping block 402. A pulling plate is fixedly installed at one end of the pull rod 405 located outside the clamping rod 404. Anti-slip lines are opened on the surface of the pulling plate.

[0035] Preferably, in this embodiment, a timing component 7 is provided on the front surface of the box body 200. The timing component 7 includes positioning rods 700 fixedly installed on both sides of the front surface of the box body 200. A limiting groove is formed on one side of the positioning rod 700. A T-shaped sliding rod 701 is slidably connected inside the limiting groove. The opposite sides of the two T-shaped sliding rods 701 are fixedly connected through a moving plate 702. A timer 703 is fixedly installed on the front surface of the moving plate 702.

[0036] It should be noted that through the arranged timing component 7, it is convenient to quickly disassemble and assemble the timer 703 during use, and at the same time, it is convenient to control the time during the test to maintain the test accuracy.

[0037] Preferably, in this embodiment, the pressure relief warning component 5 includes a pressure relief pipe 500 communicated with the sealing door 400. A tension spring 501 is fixedly installed on the inner bottom wall of the pressure relief pipe 500. A piston plate 502 is fixedly installed at the top of the tension spring 501. The piston plate 502 is made of rubber. A positioning frame 503 is fixedly installed at the top of the pressure relief pipe 500. A conical rod 504 is fixedly installed at the bottom of the positioning frame 503. A piston rod 505 is fixedly installed at the bottom of the conical rod 504. The bottom of the piston rod 505 penetrates through the piston plate 502 and extends below the piston plate 502. A limiting baffle 506 is fixedly installed at the bottom of the piston rod 505. A touch switch 507 is fixedly installed on the upper surface of the limiting baffle 506. The touch switch 507 is electrically connected to an external alarm.

[0038] It should be noted that through the arranged sealing component 4 and pressure relief warning component 5, the tightness of the device is maintained during use, and at the same time, the test pressure inside the device can be monitored and warned according to the requirements during the test, so that the battery can be kept in a constant pressure environment, improving the test accuracy of the device.

[0039] A test method for a performance test device of a hydrogen storage fuel cell for a new energy vehicle includes the following steps: S1. Put the fuel cell into the test device. The specific steps are as follows: (1). Pull the sliding plate 403 on the pull rod 405, so that the clamping rod 404 on one side of the sliding plate 403 is separated from one side of the limiting block 401, and open the sealing door 400; (2) Subsequently, rotate the battery to be tested for recovery 90 degrees and place it above the protective plate 305. After passing through two pressing blocks 303, rotate it 90 degrees in the reverse direction, so that the battery presses against the protective plate 305. Subsequently, the gas in the airbag 304 enters the interior of the vertical pipe 300 through the connecting air pipe 306. The gas moves the piston 301 downward, so that the pressing block 303 on the inverted U-shaped rod 302 presses against the top of the battery. While purging, the gas will enter the interior of the airbag 304, and the gas will enter the interior of the vertical pipe 300 through the airbag 304. Subsequently, the airbag 304 will bulge, and at the same time the gas will move the piston 301 downward. When the piston 301 moves down to below the air leakage hole, the battery is clamped. At the same time, the gas in the vertical pipe 300 enters the interior of the box body 200 through the air leakage hole and contacts the battery. At the same time, during the placement process, the battery is locked according to its own weight and the charging of the gas. (3) Then cover the sealing door 400. Since one end of the clamping rod 404 is hemispherical, under the action of gravity, the sealing door 400 directly presses the clamping rod 404 to the right. When the sealing door 400 falls in place, the compression spring 406 resets the clamping rod 404 on one side of the sliding plate 403, so that the clamping rod 404 is inserted into one side of the limiting block 401. S2. After the fuel cell is subjected to airtightness detection, nitrogen purging is carried out. Specifically, make the back pressure stable and the single-cell voltage reach the open-circuit voltage range (average voltage 0.9V), load to 1.6A / cm2 within 5 minutes, and maintain at 1.6A / cm2 for 30 minutes, then unload to 0A / cm2 or OCV state. S3. Air is used to perform cathode low-temperature and high-humidity infiltration on the fuel cell. Specifically, both the anode and the cathode are switched to nitrogen and purged for 3 minutes. The anode is switched to hydrogen (the flow rate corresponding to an anode stoichiometry of 3.0 at 0.2A / cm2), and no gas is supplied to the cathode for hydrogen infiltration for 15 minutes. S4. Hydrogen is used to perform anode low-temperature and high-humidity infiltration on the fuel cell. Specifically, after the anode and cathode are purged with nitrogen for 15 minutes, the cathode is switched to air (the flow rate corresponding to an anode stoichiometry of 1.8 at 0.2A / cm2), and no gas is supplied to the anode for air infiltration for 15 minutes.

[0040] As a preference of this embodiment, before the test, it is also necessary to connect the nitrogen-hydrogen pipe 201 to the air outlet of a nitrogen tank or nitrogen production equipment, so that wet nitrogen is used to perform humidification purging on the fuel cell.

[0041] It should be noted that it is necessary to set the inlet temperature of the cooling water to 40°C, the anode humidity to 100%, and the cathode humidity to 100% (the anode dew point temperature is 40°C and the cathode dew point temperature is 40°C, and the anode inlet temperature and the cathode inlet temperature are both set to 45°C).

[0042] Both the anode and the cathode are switched to nitrogen and purged for 3 minutes. Then the anode is switched to hydrogen and the cathode is switched to air (flow rates corresponding to an anode stoichiometry of 1.6 and a cathode stoichiometry of 1.8 at 1.6 A / cm2). Set the back pressure to 120 kPag for the anode and 110 kPag for the cathode within 2 minutes. Pass humidified hydrogen through the anode and humidified nitrogen through the cathode for 30 seconds (flow rates corresponding to an anode stoichiometry of 1.6 and a cathode stoichiometry of 1.8 at 1.2 A / cm2). Set the back pressure of the anode, the cathode, and the water circuit to 100 kPa. Increase the cathode dew point temperature to 45 °C, keep the anode dew point temperature and the water inlet temperature at 40 °C, and increase the cathode inlet air temperature to 50 °C. After the temperature is reached, maintain for 60 minutes. Set the water inlet temperature to 60 °C and the humidity of both the anode and the cathode to 100%. Set the anode back pressure to 120 kPa and the cathode back pressure to 110 kPa. Pass hydrogen through the anode and air through the cathode (flow rates corresponding to an anode stoichiometry of 1.6 and a cathode stoichiometry of 1.8 at 1.6 A / cm2). Wait for the OCV average voltage to reach 0.9 V, then load to 1.6 A / cm2 and maintain for 10 minutes.

[0043] Reduce the load to 0 A and conduct nitrogen purging.

[0044] When the test method of the performance test device of a hydrogen storage fuel cell for a new energy vehicle of the present invention is in use, the sliding plate 403 on the pull rod 405 is pulled, so that the clamping rod 404 on one side of the sliding plate 403 is separated from one side of the limiting block 401, and the sealing door 400 is opened. Then, the battery to be tested and restored is rotated 90 degrees and placed above the protection plate 305, rotated 90 degrees in the reverse direction after passing through the two pressing blocks 303, so that the battery presses the protection plate 305. Subsequently, the gas in the airbag 304 enters the inside of the vertical pipe 300 through the connecting air pipe 306, and the gas moves the piston 301 downward, so that the pressing block 303 on the inverted U-shaped rod 302 presses the top of the battery. While purging, the gas will enter the inside of the airbag 304, and the gas will enter the inside of the vertical pipe 300 through the airbag 304. Subsequently, the airbag 304 will bulge, and at the same time, the gas will move the piston 301 downward. When the piston 301 moves down to below the air leakage hole, the battery is clamped, and at the same time, the gas in the vertical pipe 300 enters the inside of the box body 200 through the air leakage hole and contacts the battery. At the same time, during the placement process, the battery is locked according to the self-weight of the battery and the filling of the gas. Then, the sealing door 400 is covered. Since one end of the clamping rod 404 is hemispherical, under the action of gravity, the sealing door 400 directly presses the clamping rod 404 to the right. When the sealing door 400 falls in place, the compression spring 406 resets the clamping rod 404 on one side of the sliding plate 403, so that the clamping rod 404 is inserted into one side of the limiting block 401. Subsequently, the fuel cell is subjected to airtightness detection and then purged with nitrogen. Then, air is used to perform cathode low-temperature and high-humidity infiltration on the fuel cell, and then hydrogen is used to perform anode low-temperature and high-humidity infiltration on the fuel cell. Before the test, the nitrogen-hydrogen pipe 201 also needs to be connected to the air outlet of the nitrogen gas tank or the hydrogen gas tank, so that wet nitrogen and hydrogen are used to perform humidification and purging on the fuel cell.

[0045] The basic principles, main features and advantages of the present invention have been described above in conjunction with specific embodiments. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for a hydrogen storage fuel cell for a new energy vehicle, comprising a base (1), characterized in that: A test component (2) is arranged on the upper surface of the base (1), a positioning component (3) is arranged inside the test component (2), a sealing component (4) is arranged on the top of the test component (2), and a pressure relief warning component (5) is arranged on the top of the sealing component (4); The test assembly (2) comprises a box body (200) fixedly mounted on a base (1), one side of the box body (200) being connected to a nitrogen-hydrogen gas pipe (201), a water pump (203) being fixedly mounted on the upper surface of the base (1), a water outlet of the water pump (203) being connected to a water injection pipe (204), one end of the water injection pipe (204) being connected to one side of the box body (200), the other side of the box body (200) being connected to a water outlet pipe (205), the surface of the water outlet pipe (205) being connected to a control valve (206), the surface of the nitrogen-hydrogen gas pipe (201) being connected to a gas valve (207), and the surface of the water injection pipe (204) being connected to a solenoid valve (202); The positioning assembly (3) comprises two sets of vertical tubes (300) fixedly mounted on the inner bottom wall of the box body (200), the interior of the vertical tube (300) is slidably connected with a piston (301), the top of the piston (301) is fixedly mounted with an inverted U-shaped rod (302), the top of the inverted U-shaped rod (302) passes through the top of the vertical tube (300) and extends to the outside of the vertical tube (300) where an extrusion block (303) is fixedly mounted, and a plurality of vertical tubes (300) are fixedly mounted between the vertical tubes (300) on the same side. The airbag (304) has a protective plate (305) fixedly mounted on the top of the airbag (304). Both sides of the airbag (304) are connected to connecting air pipes (306). One end of the connecting air pipe (306) sequentially penetrates one side of the bottom of the vertical pipe (300) and extends to the outside of the vertical pipe (300) to be connected to the top of the vertical pipe (300). One end of the nitrogen and hydrogen gas pipe (201) is connected to one side of the airbag (304). One side of the vertical pipe (300) is provided with an air leakage hole.

2. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 1, characterized in that: The bottom of the base (1) is provided with a support adjustment assembly (6), which comprises a square tube (600) fixedly mounted at the four corners of the bottom of the base (1); a hydraulic rod (601) is fixedly mounted on the inner top wall of the square tube (600); a bracket (602) is fixedly mounted on the bottom of the hydraulic rod (601); a roller (603) is rotatably connected to the inside of the bracket (602) via a rotating shaft; a mounting plate (604) is fixedly mounted on the bottom of the square tube (600); a mounting hole is provided on the mounting plate (604), the mounting hole is an oblong hole, and an anti-slip pattern is provided on the lower surface of the mounting plate (604).

3. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 1, characterized in that: Restoration springs (307) are fixedly mounted at the four corners of the bottom of the piston (301); the bottom of the restoring spring (307) is fixedly connected to the inner bottom wall of the vertical tube (300); the surface of the piston (301) is slidably connected to the inner wall of the vertical tube (300); and the piston (301) is adapted to fit the vertical tube (300).

4. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 1, characterized in that: The sealing assembly (4) comprises a sealing door (400) hingedly connected to the upper surface of the box body (200) by a hinge, the lower surface of the sealing door (400) is in contact with the top of the box body (200), a handle and a limiting block (401) are fixedly mounted on the upper surface of the sealing door (400), a clamping block (402) is fixedly mounted on one side of the box body (200), a cavity is provided inside the clamping block (402), a sliding plate (403) is slidably connected inside the cavity, a clamping rod (404) is fixedly mounted on one side of the sliding plate (403), one end of the clamping rod (404) passes through the clamping block (402) and extends to the outside of the clamping block (402), and the clamping rod (404) is located One end of the outside of the clamping block (402) is clamped with one side of the limiting block (401), and one side of the limiting block (401) is provided with a clamping groove for a clamping rod (404) to pass through. One end of the clamping rod (404) located outside the clamping block (402) is hemispherical. A pull rod (405) is fixedly installed on one side of the sliding plate (403), and one end of the pull rod (405) passes through the clamping block (402) and extends to the outside of the clamping block (402). An extrusion spring (406) is arranged around the surface of the pull rod (405), and one end of the extrusion spring (406) is fixedly connected to one side of the sliding plate (403), and the other end of the extrusion spring (406) is fixedly connected to one side of the inner wall of the cavity.

5. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 4, characterized in that: A circular hole is provided on one side of the clamping block (402) for the clamping rod (404) to pass through, and the inner wall of the circular hole is slidably connected to the surface of the clamping rod (404). A pulling hole is provided on the other side of the clamping block (402) for the pull rod (405) to pass through, and a pulling plate is fixedly mounted on one end of the pull rod (405) located outside the clamping rod (404), and the surface of the pulling plate has anti-slip grooves.

6. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 1, characterized in that: The front surface of the box body (200) is provided with a timing assembly (7), the timing assembly (7) comprising positioning rods (700) fixedly mounted on both sides of the front surface of the box body (200), one side of the positioning rods (700) is provided with a limiting groove, the interior of the limiting groove is slidably connected with a T-shaped sliding rod (701), the opposite sides of the two T-shaped sliding rods (701) are fixedly connected via a moving plate (702), and a timer (703) is fixedly mounted on the front surface of the moving plate (702).

7. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 1, characterized in that: The pressure relief warning assembly (5) comprises a pressure relief pipe (500) connected to the sealing door (400); a tension spring (501) is fixedly mounted on the inner bottom wall of the pressure relief pipe (500); a piston plate (502) is fixedly mounted on the top of the tension spring (501); the piston plate (502) is made of rubber; a positioning frame (503) is fixedly mounted on the top of the pressure relief pipe (500); a conical rod (504) is fixedly mounted on the bottom of the positioning frame (503); a piston rod (505) is fixedly mounted on the bottom of the conical rod (504); the bottom of the piston rod (505) passes through the piston plate (502) and extends to the bottom of the piston plate (502); and a limit baffle (506) is fixedly mounted on the bottom of the piston rod (505).

8. The performance testing device for a hydrogen storage fuel cell for a new energy vehicle according to claim 7, characterized in that: A touch switch (507) is fixedly mounted on the upper surface of the limit baffle (506), and the touch switch (507) is electrically connected to an external alarm.

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