A hydrogen fuel cell stability testing device and its testing method

Abstract

The present invention discloses a hydrogen fuel cell stability test device, which is characterized by comprising a test bearing plate, a vibration test device arranged on the test bearing plate, a shaking test device, and a support device located below the test bearing plate, wherein the vibration test device is used to drive the test bearing plate to vibrate; the shaking test device is used to drive the test bearing plate to shake, and the support device is used to support the test bearing plate when the shaking test device and the vibration test device stop working, so as to ensure the stability of the test bearing plate. The test device can flexibly switch between different states through spring connection and support of a support frame to perform hydrogen fuel cell detection, accurately simulate the ups and downs and vibrations of the hydrogen fuel cell when it is stable and simulate the hydrogen fuel cell when sailing on the sea on a ship, and effectively verify the stability of the hydrogen fuel cell on the ship.

Description

Technical Field

[0001] The present invention relates to a hydrogen fuel cell, and more particularly to a stability test device for a hydrogen fuel cell and a test method thereof. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Its basic principle is the reverse reaction of electrolyzing water. Hydrogen and oxygen are respectively supplied to the anode and the cathode. After hydrogen diffuses outward through the anode and reacts with the electrolyte, electrons are released and reach the cathode through an external load.

[0003] However, there is no efficient and suitable test device for existing marine hydrogen energy cells to conveniently and efficiently simulate the overall structural stability during sea navigation and test the stability of the circuit. Since hydrogen is a highly flammable and explosive substance, ensuring its stability during use is crucial for personal and property safety. Summary of the Invention

[0004] Object of the Invention: Aiming at the above disadvantages, the present invention provides a test device for verifying the use stability of a marine hydrogen fuel cell.

[0005] The present invention also provides a test method for verifying the use stability of a marine hydrogen fuel cell.

[0006] Technical Solution: To solve the above problems, the present invention adopts a hydrogen fuel cell stability test device, which is characterized in that it includes a test bearing plate, a vibration test device, a shaking test device arranged on the test bearing plate, and a support device located below the test bearing plate. The vibration test device is used to drive the test bearing plate to vibrate; the shaking test device is used to drive the test bearing plate to shake, and the support device is used to support the test bearing plate when the shaking test device and the vibration test device stop working to ensure the stability of the test bearing plate;

[0007] The shaking test device includes a chute, a slider sliding along the extension direction of the chute, and a slider driving device for driving the slider to move. Chutes are arranged on both sides of the test bearing plate, and sliders are hinged on both sides of the test bearing plate. The slider driving device drives the slider to move in the chute, thereby driving the test bearing plate to shake;

[0008] The vibration test device includes a vibration motor arranged on the test bearing plate;

[0009] The support device includes a base frame, a connecting plate, and a limiting device. The connecting plate is connected to the test bearing plate through a first spring. The limiting device includes first racks arranged on both sides of the connecting plate, gears engaged with the first racks, and limiting plates. The first racks extend vertically downward from the bottom of the connecting plate. Second racks are arranged on both sides of the limiting plate and are engaged with the gears. A sliding rod extending vertically upward is arranged on the base frame. The limiting plate is sleeved on the sliding rod. The up and down movement of the first racks drives the gears to rotate, and the gears drive the second racks to move up and down, thereby driving the limiting plate to slide on the sliding rod. A support frame is fixedly connected to the limiting plate, and the connecting plate is provided with a through hole through which the support frame passes. When the shaking test device and the vibration test device stop working, the support frame abuts against the lower part of the test bearing plate.

[0010] Further, an L-shaped support plate is fixedly arranged at the bottom of the limiting plate. The L-shaped support plate includes a vertical part fixedly connected to the bottom of the limiting plate and a horizontal part with one end fixedly connected to the vertical part. The horizontal part is parallel to the plane where the limiting plate is located and is sleeved on the sliding rod.

[0011] Further, a connection slot is arranged at the bottom of the connecting plate, and a through hole is opened on the limiting plate. The data acquisition cable passes through the through hole of the limiting plate and is fixedly connected to the support plate. The support plate is placed on the limiting plate, and the area of the support plate is larger than the through hole of the limiting plate. A connection plug is arranged on the support plate. The connection plug is electrically connected to the data acquisition cable and is matched with the connection slot.

[0012] Further, a stable connection device is arranged between the connection plug and the connection slot. The stable connection device includes a connection block arranged between the connection plug and the support plate, one-way limiting blocks arranged on both sides of the connection block, and a clamping seat fixedly connected to the connection slot and matched with the one-way limiting blocks. The one-way limiting blocks are connected to the connection block through springs. The upper surface of the one-way limiting block is an inclined surface, and the lower surface is a horizontal surface. When the clamping seat moves downward, it is guided by the inclined surface of the upper surface of the one-way limiting block, so that the one-way limiting block compresses the spring and the one-way limiting block is clamped into the clamping seat. When the clamping seat moves upward, it is restricted by the lower surface of the one-way limiting block.

[0013] The present invention also provides a test method for a hydrogen fuel cell stability test device, including the following steps:

[0014] Step 1: Install the hydrogen fuel cell test module on the test bearing plate;

[0015] Step 2: Drive the sliders on both sides of the test bearing plate to descend simultaneously and abut against the support frame. The limiting device ensures the stability of the test bearing plate, fixes and detects the hydrogen fuel cell test module, and collects the data of the hydrogen fuel cell test module during the fixed detection.

[0016] Step 3: Drive the sliders on both sides of the test load plate to rise simultaneously, so that the support frame is outside the motion range of the test load plate;

[0017] Step 4: driving the sliders on both sides of the test bearing plate to perform reciprocating motions with opposite movement trends, so that the test bearing plate shakes, thereby driving the hydrogen fuel cell test module to perform shaking detection, and collecting data of the hydrogen fuel cell test module during the shaking detection;

[0018] Step 5: Start the vibration test device when the hydrogen fuel cell is undergoing a shake test, and collect data of the hydrogen fuel cell test module during the shake test and the vibration test;

[0019] Step 6: Evaluate the stability of the hydrogen fuel cell based on the collected data.

[0020] Beneficial effect: Compared with the prior art, the significant advantage of the present invention is that the test device can flexibly switch between different states through spring connection and support of the support frame to test the hydrogen fuel cell, accurately simulate the ups and downs and vibrations of the hydrogen fuel cell when it is stable and when it is sailing on the ship, and effectively verify the stability of the hydrogen fuel cell on the ship. The stability of the support frame is ensured by multiple limiters of the rack, gear transmission and slide rod, thereby ensuring the stability of the hydrogen fuel cell during fixed testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a sectional view of the front view of the testing device of the present invention;

[0022] Figure 2 is a cross-sectional view of a side view of the testing device of the present invention;

[0023] Figure 3 A cross-sectional view of the upper end of the connecting plate of the test device of the present invention;

[0024] Figure 4 It is a cross-sectional view between the connecting plate and the limiting plate of the testing device of the present invention;

[0025] Figure 5 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0026] Example 1

[0027] like Figures 1 to 4As shown in the figure, a hydrogen fuel cell stability test device in this embodiment includes a base frame 1, a chute 2, a slider 3, a support rod 4, a test bearing plate 5, a hydrogen fuel cell module 6, and a vibration motor 7. The hydrogen fuel cell module 6 is installed on the test bearing plate 5. Chutes 2 are arranged on both sides of the test bearing plate 5. Sliders 3 are slidably arranged in the chutes 2. Electric cylinders are fixedly installed at the bottoms of the chutes 2. The output ends of the electric cylinders are fixedly connected to the sliders 3. The electric cylinders drive the sliders 3 to slide in the chutes. The sliders are hinged to the test bearing plate, and the sliders 3 are fixedly connected with support rods extending vertically downward. The support rods are located above the connecting plate. When the test bearing plate descends to the lowest position, the support rods abut against the connecting plate. A first spring 8 is fixedly connected in an array between the lower end surface of the test bearing plate 5 and the support rod 4. The first spring 8 connects the test bearing plate and the connecting plate. When the test bearing plate rises, the connecting plate is driven to rise through the first spring 8. An opening 9 is formed in the connecting plate. The support frame 16 passes through the opening 9 and abuts against the test bearing plate. At the same time, the support rod 4 abuts against the connecting plate to ensure the stability of the test bearing plate.

[0028] First racks 10 are fixedly connected to the left and right sides of the lower end surface of the connecting plate. A sliding rod 11 is fixedly connected to the lower bottom surface of the base frame 1. A limiting plate 12 is slidably sleeved on the surface of the sliding rod 11. Second racks 14 are fixedly connected to the left and right sides of the lower end surface of the limiting plate 12. Gears 15 are rotatably sleeved on the left and right sides of the base frame 1. The gears 15 are meshed with the first racks 10 and the second racks 14. Support frames 16 are fixedly connected to the front and rear sides of the upper end surface of the limiting plate 12.

[0029] Vibration motors 7 are installed on the front and rear sides of the upper end surface of the test carrier plate, and are respectively arranged on the front and rear sides of the hydrogen fuel cell module 6. The test connection mechanism includes a connection slot 17, a connection plug 18, a second spring 25, a card seat 22, a limit slide rail 23, and a one-way limit block 24. A connection slot is provided at the bottom of the connection plate. A support plate is arranged above the limit plate 12, and a connection plug 18 is arranged at the upper end of the support plate. The connection slot 17 and the connection plug 18 are inserted and matched with each other. The connection plug 18 is connected to the support plate through a connection block. Limit slide rails 23 are provided on the left and right sides of the connection block, and one-way limit blocks 24 are slidably arranged in the limit slide rails 23. A second spring 25 is fixedly connected between the one-way limit blocks 24 and the limit slide rails 23. Card seats 22 are fixedly connected to the left and right sides of the lower end surface of the connection slot 17. The card seats 22 and the one-way limit blocks 24 are inserted and matched with each other. The gears 15 rotatably sleeved on the left and right sides of the base frame 1 are respectively arranged on the closer sides of the first racks 10 on both sides, and are also arranged on the farther sides of the second racks 14 on both sides.

[0030] Sliders 3 are slidably arranged in the two side chutes 2 of the base frame 1, and a test carrier plate 5 is rotatably connected between the sliders 3. First springs 8 are respectively fixedly connected to the lower end surface of the test carrier plate 5. Thus, the hydrogen fuel cell module 6 can be installed on the test carrier plate 5, and vibration motors 7 can be installed on the test carrier plate 5 on the front and rear sides of the hydrogen fuel cell module 6. Thus, the sliders 3 can be driven to move up and down by an electric cylinder, and the vibration motors 7 can drive the test carrier plate 5 and the hydrogen fuel cell module 6 installed thereon to vibrate and rotate, which can simulate the up-and-down undulation and vibration during ocean navigation, so as to achieve the purpose of detecting the hardware structure of the device. At the same time, when it is necessary to fix and detect the device, the electric cylinder can be used to drive the slider to move down, thereby driving the test carrier plate 5 to move down. The support rod 4 abuts against the connection plate and drives the connection plate to move down. Since openings 9 are provided on the front and rear sides of the connection plate, and the support frame 16 fixedly connected to the upper end surface of the limit plate 12 is slidably arranged in the openings 9, when the connection plate and the test carrier plate 5 move down to the front and rear sides of the lower end surface of the test carrier plate 5, they will abut against the upper end of the support frame 16. At this time, the test carrier plate 5 and the devices thereon will be stably limited. At this time, the connection slot 17 and the connection plug 18 are connected, and thus the operating data of the hydrogen fuel cell module 6 can be detected.

[0031] When the connecting plate moves downward, it will drive the first racks 10 fixedly connected to both sides of its lower end face to move downward, thereby driving the gears 15 on each side to rotate, driving the second rack 14 to pull the limiting plate 12 upward. At this time, the connecting slots 17 on the upper and lower sides and the connecting plugs 18 will approach and connect to each other. At this time, fixed detection can be carried out. When dynamic detection is required, the test bearing plate can be driven to move upward again. At this time, due to the one-way limiting blocks 24 slidably arranged on both sides of the connecting plug 18, they will be limited by the card seats 22. Through the limitation of the one-way limiting blocks and the card seats, the reliability of the connection between the data acquisition cable and the connecting plate is ensured. As the connecting plate moves upward, the data acquisition cable conducts real-time dynamic data collection and detection on the hydrogen fuel cell module. When disassembling, only need to pull the extended ends of the one-way limiting blocks on both sides close to each other in front of the connecting plug 18, and the connecting slot and the connecting plug can be easily separated. The data cables on the connecting plug 18 should also reserve enough redundant length for convenient adjustment and use.

[0032] Embodiment 2

[0033] In this embodiment, the installation method of the bus board floating vibration damping plug box includes the following steps:

[0034] Step 1: Install the hydrogen fuel cell test module on the test bearing plate;

[0035] Step 2: Drive the sliders on both sides of the test bearing plate to descend simultaneously and abut against the support frame. The limiting device ensures the stability of the test bearing plate, conducts fixed detection on the hydrogen fuel cell test module, and collects the data of the hydrogen fuel cell test module during fixed detection;

[0036] Step 3: Drive the sliders on both sides of the test bearing plate to rise simultaneously, so that the support frame is outside the movement range of the test bearing plate;

[0037] Step 4: Drive the sliders on both sides of the test bearing plate to perform reciprocating movements with opposite movement trends, so that the test bearing plate shakes, thereby driving the hydrogen fuel cell test module to perform shaking detection, simulating the shaking of the ship following the waves during sea navigation, and collecting the data of the hydrogen fuel cell test module during shaking detection;

[0038] Step 5: Start the vibration test device during the shaking detection of the hydrogen fuel cell, simulate the shaking and vibration of the ship following the waves during sea navigation, and collect the data of the hydrogen fuel cell test module during shaking detection and vibration detection;

[0039] Step 6: Evaluate the stability of the hydrogen fuel cell according to the collected data.

Claims

1. A hydrogen fuel cell stability test device, characterized in that, It includes a test carrier plate (5), a vibration test device, a shaking test device disposed on the test carrier plate (5), and a support device located below the test carrier plate. The vibration test device is used to drive the test carrier plate (5) to vibrate; the shaking test device is used to drive the test carrier plate (5) to shake, and the support device is used to support the test carrier plate when the shaking test device and the vibration test device stop working; The shaking test device includes a chute (2), a slider (3) sliding along the extension direction of the chute, and a slider driving device (31) for driving the slider (3) to move. Chutes (2) are provided on both sides of the test carrier plate (5), and sliders (3) are hinged on both sides of the test carrier plate (5). The slider driving device (31) drives the slider to move in the chute (2), thereby driving the test carrier plate (5) to shake; The vibration test device includes a vibration motor (7) disposed on the test carrier plate (5); The support device includes a base frame (1), a connecting plate, and a limiting device. The connecting plate is connected to the test carrier plate through a first spring (8). The slider (3) is fixedly connected with a support rod extending vertically downward, and the support rod is located above the connecting plate. When the test carrier plate descends, the support rod abuts against the connecting plate and drives the connecting plate to descend. The limiting device includes first racks (10) provided on both sides of the connecting plate, gears (15) engaged with the first racks, and a limiting plate (12). The first racks extend vertically downward from the bottom of the connecting plate. Second racks (14) are provided on both sides of the limiting plate (12), and the second racks (14) are engaged with the gears (15). A sliding rod (11) extending vertically upward is provided on the base frame (1). The limiting plate (12) is sleeved on the sliding rod (11). The up and down movement of the first rack drives the gear to rotate, and the gear drives the second rack to move up and down, thereby driving the limiting plate to slide on the sliding rod; A support frame (16) is fixedly connected to the limiting plate (12). The connecting plate is provided with an opening (9) through which the support frame (16) passes. When the shaking test device and the vibration test device stop working, the support frame (16) abuts against the bottom of the test carrier plate.

2. The test device according to claim 1, wherein, An L-shaped support plate (13) is fixedly provided at the bottom of the limiting plate (12). The L-shaped support plate includes a vertical portion fixedly connected to the bottom of the limiting plate and a horizontal portion fixedly connected to one end of the vertical portion. The horizontal portion is parallel to the plane where the limiting plate is located, and the horizontal portion is sleeved on the sliding rod.

3. The testing device according to claim 2, characterized in that, A connection slot is provided at the bottom of the connecting plate, and a through hole is provided in the limiting plate. The data acquisition cable passes through the through hole of the limiting plate and is fixedly connected to the support plate. The support plate is placed on the limiting plate, and the area of the support plate is larger than the through hole of the limiting plate. A connection plug is provided on the support plate. The connection plug is electrically connected to the data acquisition cable and is matched with the connection slot.

4. The testing device according to claim 3, wherein A stable connection device is arranged between the connection plug and the connection slot. The stable connection device includes a connection block arranged between the connection plug and the support plate, one-way limit blocks (24) arranged on both sides of the connection block, and a card seat (22) fixedly connected to the connection slot and cooperating with the one-way limit blocks. The one-way limit blocks are connected to the connection block through second springs. The upper surface of the one-way limit block is an inclined surface, and the lower surface is a horizontal surface. When the card seat moves downward, it is guided by the inclined surface of the upper surface of the one-way limit block, so that the one-way limit block compresses the second spring, and the one-way limit block is snapped into the card seat. When the card seat moves upward, it is restricted by the lower surface of the one-way limit block.

5. A testing method for the testing device according to claim 1, characterized in that, It includes the following steps: Step 1: Install the hydrogen fuel cell test module (6) on the test bearing plate. Step 2: Drive the sliders on both sides of the test bearing plate (5) to descend simultaneously, so that the test bearing plate abuts against the support frame. The limiting device ensures the stability of the test bearing plate, fixes and detects the hydrogen fuel cell test module, and collects the data of the hydrogen fuel cell test module during the fixed detection. Step 3: Drive the sliders on both sides of the test bearing plate (5) to rise simultaneously, so that the support frame (16) is outside the movement range of the test bearing plate. Step 4: Drive the sliders on both sides of the test bearing plate to perform reciprocating movements with opposite movement trends, so that the test bearing plate shakes, thereby driving the hydrogen fuel cell test module to perform shaking detection, and collecting the data of the hydrogen fuel cell test module during the shaking detection. Step 5: Start the vibration test device when the hydrogen fuel cell test module is performing shaking detection, and collect the data of the hydrogen fuel cell test module during the shaking detection and the vibration detection. Step 6: Evaluate the stability of the hydrogen fuel cell according to the collected data.

Images