Hydrogen energy battery sealing structure performance test structure

Abstract

The utility model discloses a hydrogen energy battery sealing structure performance test structure, and relates to the hydrogen energy battery performance test technology field, and the hydrogen energy battery sealing structure performance test structure comprises a test box used for storing liquid to detect the performance of a battery sealing structure; the placing piece is arranged in the test box; the support is fixed to the top of the test box, and hoisters are fixed to the two sides of the top end of the support; a part of the test assembly is installed on the top of the support. According to the hydrogen energy battery sealing structure performance test structure, two modes of bubble detection and tracer gas detection are adopted, liquid is injected into the test box, nitrogen is filled to observe whether bubbles exist or not, whether leakage exists or not is judged, then tracer gas is filled, and the tracer gas detection equipment is used for detection; the sealing performance of the battery sealing structure can be detected more comprehensively and accurately from different angles, and the detection reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy battery performance testing technology, specifically a hydrogen energy battery sealed structure performance testing structure. Background Technology

[0002] A hydrogen fuel cell is a device that generates electricity by reacting hydrogen and oxygen. It utilizes the chemical reaction between hydrogen and oxygen to directly convert chemical energy into electrical energy, producing water and heat as byproducts. Hydrogen fuel cells typically consist of multiple electrochemical cell units that separate hydrogen and oxygen and facilitate the electrochemical reaction between them through ion exchange membranes or other electrolyte media.

[0003] The utility model patent with authorization announcement number CN221826379U discloses a performance testing platform for the sealed structure of a hydrogen energy battery, including an operating table. A servo motor is fixedly connected to the top of the operating table, and a cross plate is fixedly connected to the output end of the servo motor. Multiple placement slots are opened on the top of each cross plate, and clamping electric cylinders are fixedly connected to the inner side of each of the multiple placement slots. Rubber strips are fixedly connected to the opposite side of each of the multiple clamping electric cylinders. An L-shaped plate is fixedly connected to the top left side of the operating table, and a telescopic rod is fixedly connected to the top of the L-shaped plate. A push plate is fixedly connected to the output end of the telescopic rod.

[0004] As shown in the above utility model, existing hydrogen battery sealing structure performance testing platforms generally use a placement slot and clamping cylinder to quickly clamp and fix the battery, and complete a series of testing operations by rotation. A fan is then activated to introduce hot air into the sealing cover through an output pipe, and the battery's sealing performance is tested through alternating hot and cold temperatures. However, this method only tests the battery's sealing performance through alternating hot and cold temperatures, which lacks comprehensiveness and accuracy. It may not accurately detect various potential sealing problems in the battery's sealing structure. Furthermore, existing platforms, by introducing hot air into the sealing cover through an output pipe, primarily simulate sealing tests under temperature change environments. They lack testing methods for the battery's sealing performance in liquid environments and cannot comprehensively evaluate the battery's sealing structure performance under different usage scenarios. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a performance testing structure for a sealed hydrogen fuel cell, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a performance testing structure for a sealed hydrogen battery, comprising:

[0007] The test chamber has a water inlet pipe in the middle of the upper back and a drain outlet with a solenoid valve on one side of the lower end. The test chamber is used to store liquid to test the performance of the battery sealing structure.

[0008] The placement component is disposed inside the test chamber and is used to place the battery sealing structure. The placement component is movably connected to the inner wall of the test chamber through a guide mechanism. The placement component is provided with a placement mechanism to facilitate the placement of the tracer gas detection device structure.

[0009] A support frame is fixed to the top of the test chamber. Lifting machines are fixed to both sides of the top of the support frame. The connecting ropes of the lifting machines are connected to the placement component and are used to move the placement component up and down inside the test chamber.

[0010] A test assembly, part of which is mounted on top of a bracket and another part of which is mounted on a placement piece, is used to test the battery sealing structure.

[0011] Preferably, the guiding mechanism between the test box and the placement component includes dovetail grooves formed on the inner walls of both sides of the test box and dovetail sliders fixed at the lower ends of both ends of the placement component. The dovetail sliders are located in the dovetail grooves and are used to guide the placement component.

[0012] Preferably, the test chamber has a slot on the front, and an observation window is embedded in the slot for observing the testing process of the battery sealing structure.

[0013] Preferably, the placement component includes a placement frame disposed inside the test chamber, a protrusion fixed to the outer top of the placement frame, the protrusion being fixedly connected to the connecting rope of the hoist, a protruding plate fixed to the inner top of the placement frame, one of the protruding plates being connected to the test component, and a placement groove being provided on the other protruding plate for placing the detection head of the tracer gas detection device, and a placement block fixed to the inner wall of one side of the lower end of the placement frame for connecting the test component.

[0014] Preferably, the test assembly includes a nitrogen tank and a tracer gas tank fixed to the top of the support, the output ends of the nitrogen tank and the tracer gas tank are connected to a switching valve installed on the inner top wall of the support, and the output end of the switching valve is connected to a connecting pipe.

[0015] Preferably, the output end of the connecting pipe is connected to a booster pump, which is installed on the upper surface of one of the protruding plates. The output end of the booster pump is connected to an inflation head through an inflation pipe. The inflation head is placed in a slot on the placement block and is used to connect to the battery sealing structure and inflate its interior.

[0016] This invention provides a performance testing structure for a sealed hydrogen fuel cell. Compared with existing technologies, it has the following advantages:

[0017] 1. This hydrogen fuel cell sealing structure performance testing structure employs two methods: bubble detection and tracer gas detection. First, liquid is injected into the test chamber, and nitrogen is added to observe for bubbles to determine if there is a leak. Then, tracer gas is added and detected using tracer gas detection equipment. This allows for a more comprehensive and accurate testing of the sealing performance of the battery sealing structure from different angles. Compared to existing single detection methods, it can more accurately identify sealing problems and improve the reliability of the test.

[0018] 2. This hydrogen fuel cell sealing structure performance test structure can not only test the battery sealing structure in a liquid environment, simulating the sealing situation of the battery in scenarios where it may come into contact with liquid, but also test the sealing performance of the battery in a gaseous environment by filling it with nitrogen and tracer gas. It comprehensively covers a variety of possible usage environments, provides a more comprehensive evaluation of the battery sealing structure performance, and makes the test results more practically instructive. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the test box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the placement component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the support, lifting machine and testing components of this utility model.

[0023] In the diagram: Test box 1, water inlet pipe 11, drain outlet 12, dovetail slide 13, empty slot 14, observation window 15, placement component 2, placement frame 21, protrusion 22, protruding plate 23, placement block 24, placement groove 25, dovetail slider 26, bracket 3, hoist 4, test assembly 5, nitrogen tank 51, tracer gas tank 52, conversion valve 53, connecting pipe 54, booster pump 55, inflation pipe 56. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4This utility model provides a performance testing structure for a hydrogen energy battery sealing structure, including a test box 1, a placement component 2, a support 3, a lifting machine 4, and a test component 5.

[0026] Specifically, a water inlet pipe 11 is provided in the middle of the upper back of the test chamber 1, and a drain outlet 12 with a solenoid valve is provided on one side of the lower end of the test chamber 1. The test chamber 1 is used to store liquid to test the performance of the battery sealing structure. The guiding mechanism between the test chamber 1 and the placement component 2 includes dovetail grooves 13 opened on the inner walls of both sides of the test chamber 1 and dovetail sliders 26 fixed at the lower ends of both ends of the placement component 2. The dovetail sliders 26 are located in the dovetail grooves 13 and are used to guide the placement component 2 so that the placement component 2 moves vertically up and down. A slot 14 is opened on the front of the test chamber 1, and an observation window 15 is embedded in the slot 14 for observing the testing process of the battery sealing structure.

[0027] Specifically, the placement component 2 is located inside the test chamber 1. The placement component 2 is used to place the battery sealing structure. The placement component 2 is movably connected to the inner wall of the test chamber 1 through a guide mechanism. The placement component 2 is provided with a placement mechanism to facilitate the placement of the tracer gas detection equipment structure. The placement component 2 includes a placement frame 21 located inside the test chamber 1. The inner bottom wall of the placement frame 21 is used to place the battery sealing structure. A protrusion 22 is fixed on the outer side of the top of the placement frame 21. The protrusion 22 is fixedly connected to the connecting rope of the hoist 4. A protruding plate 23 is fixed on the inner side of the top of the placement frame 21. One of the protruding plates 23 is connected to the test component 5. The other protruding plate 23 has a placement groove 25 for placing the detection head of the tracer gas detection equipment. The tracer gas detection equipment is generally a helium mass spectrometer leak detector. A placement block 24 is fixed on the inner wall of one side of the lower end of the placement frame 21 for connecting the test component 5.

[0028] More specifically, the bracket 3 is fixed to the top of the test chamber 1, and the top of the bracket 3 is fixed with two lifting machines 4 on both sides. The two lifting machines 4 are synchronous lifting machines. The connecting rope of the lifting machine 4 is connected to the placement part 2 and is used to drive the placement part 2 to move up and down inside the test chamber 1.

[0029] More specifically, part of the test component 5 is installed on the top of the bracket 3, and the other part of the test component 5 is installed on the placement piece 2 for testing the battery sealing structure. The test component 5 includes a nitrogen tank 51 and a tracer gas tank 52 fixed on the top of the bracket 3. The gas in the tracer gas tank 52 can be helium. The output ends of the nitrogen tank 51 and the tracer gas tank 52 are connected to a switching valve 53 installed on the inner top wall of the bracket 3. The output end of the switching valve 53 is connected to a connecting pipe 54. The switching valve 53 can pass the gas in the nitrogen tank 51 and the tracer gas tank 52 into the connecting pipe 54 respectively. The output end of the connecting pipe 54 is connected to a booster pump 55. The booster pump 55 is installed on the upper surface of one of the protrusions 23. The output end of the booster pump 55 is connected to an inflation head through an inflation pipe 56. The inflation head is placed in the slot on the placement block 24 for connecting the battery sealing structure and inflating its interior.

[0030] When this device is in operation, firstly, the battery sealing structure is placed on the placement frame 21. Then, the connection port of the battery sealing structure is sealed with sealing bolts, and the inflation head on the inflation pipe 56 is connected to one of the connection ports of the battery sealing structure. Next, the lifting machine 4 is started, and the lifting machine 4 moves the placement frame 21 to the bottom of the test chamber 1. Then, the test liquid is injected into the test chamber 1 through the water inlet pipe 11 until the liquid overflows the battery sealing structure. Then, the nitrogen tank 51 is connected to the connecting pipe 54 through the conversion valve 53. Then, the nitrogen in the nitrogen tank 51 is filled into the battery sealing structure through the inflation pipe 56 by the booster pump 55. The battery sealing structure is observed through the observation window 15 to see if there is any leakage (if there is leakage, bubbles will appear in the liquid). After the bubble detection method is completed, the liquid in the test chamber 1 is drained through the drain outlet 12. Then, the placement frame 21 is moved upward by the elevator 4 until the battery sealing structure is moved to the opening of the test chamber 1. At this time, the tracer gas canister 52 is connected to the connecting pipe 54 through the switching valve 53. After the nitrogen in the battery sealing structure is discharged (by opening the sealing connection port to discharge the gas), the battery sealing structure is sealed. Then, the tracer gas is injected into the battery sealing structure through the booster pump 55 and the gas filling pipe 56. The battery sealing structure is then detected by the detection head of the external tracer gas detection equipment to detect whether there is any leakage in the battery sealing structure. This application can accurately detect the sealing performance of the battery sealing structure through two different detection methods.

[0031] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A performance testing structure for a sealed hydrogen fuel cell, characterized in that, include: The test chamber has a water inlet pipe in the middle of the upper back and a drain outlet with a solenoid valve on one side of the lower end. The test chamber is used to store liquid to test the performance of the battery sealing structure. The placement component is disposed inside the test chamber and is used to place the battery sealing structure. The placement component is movably connected to the inner wall of the test chamber through a guide mechanism. The placement component is provided with a placement mechanism to facilitate the placement of the tracer gas detection device structure. A support frame is fixed to the top of the test chamber. Lifting machines are fixed to both sides of the top of the support frame. The connecting ropes of the lifting machines are connected to the placement component and are used to move the placement component up and down inside the test chamber. A test assembly, part of which is mounted on top of a bracket and another part of which is mounted on a placement piece, is used to test the battery sealing structure.

2. The hydrogen fuel cell sealing structure performance testing structure according to claim 1, characterized in that: The guiding mechanism between the test chamber and the placement component includes dovetail grooves formed on the inner walls of both sides of the test chamber and dovetail sliders fixed at the lower ends of both ends of the placement component. The dovetail sliders are located in the dovetail grooves and are used to guide the placement component.

3. The hydrogen fuel cell sealed structure performance testing structure according to claim 1, characterized in that: The test chamber has a slot on the front, and an observation window is embedded in the slot for observing the testing process of the battery sealing structure.

4. The hydrogen fuel cell sealing structure performance testing structure according to claim 1, characterized in that: The placement component includes a placement frame disposed inside the test chamber. A protrusion is fixed to the outer top of the placement frame and is fixedly connected to the connecting rope of the hoist. A protruding plate is fixed to the inner top of the placement frame. One of the protruding plates is connected to the test assembly, and the other protruding plate has a placement groove for placing the detection head of the tracer gas detection device. A placement block is fixed to the inner wall of one side of the lower end of the placement frame for connecting the test assembly.

5. The hydrogen fuel cell sealing structure performance testing structure according to claim 1, characterized in that: The test assembly includes a nitrogen tank and a tracer gas tank fixed to the top of the support. The output ends of the nitrogen tank and the tracer gas tank are connected to a switching valve installed on the inner top wall of the support. The output end of the switching valve is connected to a connecting pipe.

6. The hydrogen fuel cell sealing structure performance testing structure according to claim 5, characterized in that: The output end of the connecting pipe is connected to a booster pump, which is installed on the upper surface of one of the protruding plates. The output end of the booster pump is connected to an inflation head through an inflation pipe. The inflation head is placed in a slot on the placement block and is used to connect to the battery sealing structure and inflate its interior.

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