Air-side air supply module of test equipment

Abstract

The utility model discloses an air side air supply module of test equipment, and relates to the field of fuel cell test, an air inlet buffer tank, an exhaust buffer tank, a first pressure regulating valve and a vacuum pump are used for forming an air flow path with a fuel cell, and the air inlet buffer tank and the exhaust buffer tank are respectively suitable for being communicated with an air inlet and an air outlet of the fuel cell; the first pressure regulating valve is arranged at the upstream of the air inlet buffer tank; the drainage pump is connected with the exhaust buffer tank and is used for discharging liquid in the exhaust buffer tank; the controller is connected with the first pressure regulating valve, the vacuum pump and the drainage pump; and the communicating pipe is communicated with the air inlet buffer tank and the exhaust buffer tank. Therefore, the air pressure in the air inlet buffer tank and the air outlet buffer tank can be adjusted through the vacuum pump and the first pressure adjusting valve, the air side of the fuel cell can be simulated, and oxygen (different low oxygen pressure) in different altitude environments can be provided for the fuel cell so as to test the performance of the fuel cell; therefore, the test cost and the test difficulty can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of fuel cell testing, and in particular to an air-side air supply module of a testing device. Background Art

[0002] In the related art, when testing some devices to be tested (such as a fuel cell engine), it is necessary to test the performance of the device to be tested in environments at different altitudes (different low oxygen pressures) in order to calibrate and test the device to be tested. However, the air-side air supply module of the existing testing device simulates the plateau environment through a pressure-resistant cabin, resulting in extremely high testing costs, and the cabin has a large volume and a large floor area, which is not conducive to arranging the air-side air supply module of the testing device and seriously increases the testing difficulty. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide an air-side air supply module of a testing device, which can simulate the air side of a fuel cell, can provide oxygen (different low oxygen pressures) in environments at different altitudes to the fuel cell, and then test the performance of the fuel cell, and the testing cost is low.

[0004] The air-side air supply module of the testing device according to the utility model includes: a first pressure regulating valve, an intake buffer tank, an exhaust buffer tank, and a vacuum pump. The intake buffer tank, the exhaust buffer tank, the first pressure regulating valve, and the vacuum pump are used to form an air flow path with the fuel cell, and the intake buffer tank and the exhaust buffer tank are respectively adapted to communicate with the air inlet and the air outlet of the fuel cell. The first pressure regulating valve is arranged upstream of the intake buffer tank; a drainage pump, which is connected to the exhaust buffer tank and is used to discharge the liquid in the exhaust buffer tank; a controller, which is electrically connected to the first pressure regulating valve, the vacuum pump, and the drainage pump; and a connecting pipe, which connects the intake buffer tank and the exhaust buffer tank.

[0005] The air-side air supply module of the testing device according to the utility model can adjust the air pressure in the intake buffer tank and the exhaust buffer tank through the vacuum pump and the first pressure regulating valve, simulate the air side of the fuel cell, provide oxygen (different low oxygen pressures) in environments at different altitudes to the fuel cell to test the performance of the fuel cell, and can not set a pressure-resistant cabin, thereby reducing the testing cost and the testing difficulty.

[0006] In some examples of the utility model, the air-side air supply module of the testing device further includes: a second pressure regulating valve, which is arranged in the air flow path and is located downstream of the exhaust buffer tank, and the second pressure regulating valve is electrically connected to the controller.

[0007] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a liquid level sensor, which is electrically connected to the controller, and the liquid level sensor is disposed in the exhaust buffer tank and is used for detecting the liquid level height information in the exhaust buffer tank, and the controller can control the operation of the drain pump according to the liquid level height information.

[0008] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a check valve, which is connected to the drain pump, and the check valve is configured to conduct unidirectionally from the exhaust buffer tank to the drain pump.

[0009] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a first pressure sensor and a second pressure sensor, the first pressure sensor is electrically connected to the controller and is used for detecting the air pressure information in the intake buffer tank, and the second pressure sensor is electrically connected to the controller and is used for detecting the air pressure information in the exhaust buffer tank.

[0010] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a drain valve, which is connected to the intake buffer tank.

[0011] In some examples of the present utility model, the drain valve is connected to the controller or is configured as a manual valve.

[0012] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a flow meter, which is disposed in the air flow path and downstream of the exhaust buffer tank, and the flow meter is electrically connected to the controller.

[0013] In some examples of the present utility model, the air-side gas supply module of the test device further includes: an air filter, which is disposed upstream of the first pressure regulating valve and is connected to the first pressure regulating valve.

[0014] In some examples of the present utility model, the air-side gas supply module of the test device further includes: a first frame, a second frame and a sample holder, the first pressure regulating valve and the intake buffer tank are both disposed in the first frame, the exhaust buffer tank, the vacuum pump and the drain pump are all disposed in the second frame, the controller is disposed in the first frame or the second frame, the sample holder is adapted to support the fuel cell, and the first frame, the second frame and the sample holder are all provided with rollers.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of an air-side gas supply module of a test device according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of an air-side gas supply module of a test device according to an embodiment of the present utility model.

[0019] Reference Signs:

[0020] The air-side gas supply module 100 of the test device; the fuel cell 99;

[0021] The air filter 1; the first pressure regulating valve 2; the intake buffer tank 3; the exhaust buffer tank 4; the vacuum pump 5; the drain pump 6; the controller 7; the motor frequency converter 8; the second pressure regulating valve 9; the liquid level sensor 10; the check valve 11; the first pressure sensor 12; the second pressure sensor 13; the connecting pipe 14; the drain valve 15; the flow meter 16; the first frame 17; the second frame 18; the sample holder 19; the roller 20; the air flow path 21. Detailed Description of the Embodiments

[0022] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0023] Reference is made below to Figure 1 and Figure 2 to describe the air-side gas supply module 100 of a test device according to an embodiment of the present utility model.

[0024] As Figure 1 and Figure 2 shown, the air-side gas supply module 100 of a test device according to an embodiment of the present utility model includes: the first pressure regulating valve 2, the intake buffer tank 3, the exhaust buffer tank 4, the vacuum pump 5, the drain pump 6, the controller 7, and the connecting pipe 14.

[0025] The intake buffer tank 3, the exhaust buffer tank 4, the first pressure regulating valve 2, and the vacuum pump 5 are used to form an air flow path 21 with the fuel cell 99. The intake buffer tank 3 and the exhaust buffer tank 4 are respectively adapted to communicate with the air inlet and the air outlet of the fuel cell 99. The first pressure regulating valve 2 is arranged upstream of the intake buffer tank 3. The drain pump 6 is connected to the exhaust buffer tank 4 and is used to drain the liquid in the exhaust buffer tank 4. The controller 7 is connected to the first pressure regulating valve 2, the vacuum pump 5, and the drain pump 6. The connecting pipe 14 connects the intake buffer tank 3 and the exhaust buffer tank 4.

[0026] In some embodiments of the present application, the device to be tested is the fuel cell 99.

[0027] Among them, the intake buffer tank 3, the exhaust buffer tank 4, the first pressure regulating valve 2, and the vacuum pump 5 are used to form an air flow path 21 with the fuel cell 99. Specifically, the fuel cell 99 has an air inlet and an air outlet. The intake buffer tank 3 can communicate with the air inlet of the fuel cell 99, and the exhaust buffer tank 4 can communicate with the air outlet of the fuel cell 99. That is to say, the exhaust buffer tank 4 is located downstream of the intake buffer tank 3.

[0028] In some embodiments of the present application, the vacuum pump 5 is an explosion-proof liquid ring vacuum pump 5.

[0029] In some embodiments of the present application, the air supply module 100 on the air side of the test device further includes a motor frequency converter 8, and the rotation speed of the vacuum pump 5 can be adjusted through the motor frequency converter 8.

[0030] The first pressure regulating valve 2 is connected to the intake buffer tank 3 through a pipeline. The first pressure regulating valve 2 is arranged upstream of the intake buffer tank 3. The first pressure regulating valve 2 can adjust the air pressure flowing into the intake buffer tank 3 to adjust the air pressure flowing into the fuel cell 99.

[0031] In some embodiments of the present application, the first pressure regulating valve 2 can be configured as an electromagnetic valve.

[0032] In some embodiments of the present application, the vacuum pump 5 is connected to the intake buffer tank 3 through a pipeline. The vacuum pump 5 is arranged downstream of the exhaust buffer tank 4. The vacuum pump 5 can discharge the waste gas of the fuel cell 99 from the air flow path 21. The vacuum pump 5 can jointly adjust the negative pressure of the air flow path 21 with the first pressure regulating valve 2, so that the air supply module 100 on the air side of the test device can simulate different altitude environments (different low oxygen pressures).

[0033] The drain pump 6 is connected to the exhaust buffer tank 4 through a pipeline. The drain pump 6 is used to drain the liquid in the exhaust buffer tank 4. It can be understood that when the air supply module 100 on the air side of the test device is working, the air pressure in the exhaust buffer tank 4 is lower than the external air pressure, and the liquid is not easily discharged from the exhaust buffer tank 4. By setting the drain pump 6, the liquid in the exhaust buffer tank 4 can be effectively pumped out to complete the drainage.

[0034] The controller 7 is connected to the first pressure regulating valve 2, the controller 7 is connected to the vacuum pump 5, and the controller 7 is connected to the drain pump 6. As some embodiments of the present application, the controller 7 is connected to the first pressure regulating valve 2, the vacuum pump 5, and the drain pump 6 by electrical connection. The controller 7 can adjust the opening degree of the first pressure regulating valve 2, thereby adjusting the negative pressure magnitude of the air flow path 21. The controller 7 can adjust the rotational speed of the vacuum pump 5, thereby adjusting the negative pressure magnitude of the air flow path 21. The controller 7 can control the drain pump 6 to pump out the liquid in the exhaust buffer tank 4 to complete drainage.

[0035] The communication pipe 14 can communicate the intake buffer tank 3 and the exhaust buffer tank 4 so that the air pressures in the intake buffer tank 3 and the exhaust buffer tank 4 are the same. By including the communication pipe 14 in the air supply module 100 of the air side of the test equipment and making the communication pipe 14 communicate the intake buffer tank 3 and the exhaust buffer tank 4, the air pressures in the intake buffer tank 3 and the exhaust buffer tank 4 can be made the same, so that the intake buffer tank 3 reaches a low oxygen pressure state.

[0036] As some embodiments of the present application, ambient air sequentially passes through the air filter 1 and the first pressure regulating valve 2 and enters the intake buffer tank 3, and flows into the fuel cell 99 through the intake buffer tank 3 and the air inlet of the fuel cell 99. After an electrochemical reaction with hydrogen in the fuel cell 99, the air can sequentially pass through the air outlet of the fuel cell 99, the exhaust buffer tank 4, and the vacuum pump 5 to discharge from the air flow path 21. During the test process, the controller 7 can control the opening degree of the first pressure regulating valve 2 and the rotational speed of the vacuum pump 5 so that the pressures in the intake buffer tank 3 and the exhaust buffer tank 4 are stabilized at a set value, so that the air supply module 100 of the air side of the test equipment simulates different altitude environments (different low oxygen pressures) to calibrate and test verify the fuel cell 99. Moreover, the controller 7 can control the drain pump 6 to discharge the liquid in the exhaust buffer tank 4 to reduce the probability of excessive liquid in the exhaust buffer tank 4.

[0037] Moreover, it can be understood that the air supply module 100 of the air side of the test equipment proposed in the present application can not use a pressure-resistant cabin body, thereby effectively reducing the test cost. And compared with the pressure-resistant cabin body, the air supply module 100 of the air side of the test equipment proposed in the present application is small in volume, occupies less floor area, and is convenient to arrange, which is conducive to reducing the test difficulty.

[0038] Thus, by adjusting the air pressures in the intake buffer tank 3 and the exhaust buffer tank 4 through the vacuum pump 5 and the first pressure regulating valve 2, simulating the air side of the fuel cell 99, providing oxygen (different low oxygen pressures) in different altitude environments to the fuel cell 99 to test the performance of the fuel cell 99, and a pressure-resistant cabin body can be not provided, thereby being able to reduce the test cost and the test difficulty.

[0039] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, the air - side gas supply module 100 of the test device further includes: a second pressure regulating valve 9, which is arranged in the air flow path 21 and downstream of the exhaust buffer tank 4, and the second pressure regulating valve 9 is electrically connected to the controller 7.

[0040] Among them, the air - side gas supply module 100 of the test device further includes a second pressure regulating valve 9. The second pressure regulating valve 9 is arranged in the air flow path 21. The second pressure regulating valve 9 and the exhaust buffer tank 4 can be connected through a pipeline. And, the second pressure regulating valve 9 is arranged downstream of the exhaust buffer tank 4, and the second pressure regulating valve 9 is connected to the controller 7 in an electrically connected manner.

[0041] As some embodiments of the present application, the second pressure regulating valve 9 can be configured as an electromagnetic valve.

[0042] By making the air - side gas supply module 100 of the test device further include a second pressure regulating valve 9 and connecting the second pressure regulating valve 9 to the controller 7, the controller 7 can control the opening degree of the first pressure regulating valve 2, the opening degree of the second pressure regulating valve 9, and the rotation speed of the vacuum pump 5, so that the air - side gas supply module 100 of the test device can accurately simulate different altitude environments (different low oxygen pressures) to accurately calibrate and test - verify the fuel cell 99, which is beneficial to improving the use reliability of the air - side gas supply module 100 of the test device.

[0043] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, the air - side gas supply module 100 of the test device further includes: a liquid - level sensor 10, the liquid - level sensor 10 is connected to the controller 7, the liquid - level sensor 10 is arranged in the exhaust buffer tank 4 and is used to detect the liquid - level height information in the exhaust buffer tank 4, and the controller 7 can control the drainage pump 6 to work according to the liquid - level height information.

[0044] Among them, the air - side gas supply module 100 of the test device further includes a liquid - level sensor 10. The liquid - level sensor 10 is connected to the controller 7. The types of the liquid - level sensor 10 can be, but are not limited to, glass liquid - level sensors, pressure liquid - level sensors, buoy liquid - level sensors, capacitance liquid - level sensors, resistance liquid - level sensors, etc. As some embodiments of the present application, the liquid - level sensor 10 is a buoy liquid - level sensor. The buoy liquid - level sensor includes a float, a connecting rod, and an indicator. The float floats on the liquid surface. The float is connected to the connecting rod. And, the connecting rod is connected to the indicator. By the floating up or down of the float, the connecting rod is driven, so that the connecting rod drives the indicator to display the liquid - level height, thereby obtaining information on the rise or fall of the water level.

[0045] In some embodiments of the present application, the liquid level sensor 10 is connected to the controller 7 in an electrically connected manner. The liquid level sensor is disposed in the exhaust buffer tank 4, and the liquid level sensor 10 is used to detect the liquid level height information in the exhaust buffer tank 4. The controller 7 can control the operation of the drain pump 6 according to the liquid level height information.

[0046] In some embodiments of the present application, a first liquid level height and a second liquid level height are preset in the controller 7. The first liquid level height is higher than the second liquid level height. When the liquid level height in the exhaust buffer tank 4 reaches the first liquid level height, the controller 7 controls the drain pump 6 to operate for drainage. When the liquid level height in the exhaust buffer tank 4 drops to the second liquid level height, the controller 7 controls the drain pump 6 to stop working.

[0047] By making the air supply module 100 of the test equipment further include a liquid level sensor 10 and connecting the liquid level sensor 10 to the controller 7, the liquid level sensor 10 can obtain the liquid level information and feedback it to the controller 7. The controller 7 further controls the operation of the drain pump 6, so that the air supply module 100 of the test equipment can automatically drain water, reducing the impact on the test due to excessive liquid in the exhaust buffer tank 4, which is beneficial to improving the test accuracy of the air supply module 100 of the test equipment.

[0048] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, the air supply module 100 of the test equipment further includes: a check valve 11. The check valve 11 is connected to the drain pump 6, and the check valve 11 is configured to conduct unidirectionally from the exhaust buffer tank 4 to the drain pump 6 direction.

[0049] Among them, the air supply module 100 of the test equipment further includes a check valve 11. The check valve 11 is connected to the drain pump 6 through a pipeline. Specifically, the check valve 11 can be disposed downstream of the drain pump 6. The check valve 11 is configured to conduct unidirectionally from the exhaust buffer tank 4 to the drain pump 6 direction to reduce the probability of liquid and gas backflow. It can be understood that when the air supply module 100 of the test equipment is working, the air pressure in the exhaust buffer tank 4 is lower than the external air pressure. Under the pressure difference, the discharged liquid and external gas are extremely likely to flow back into the exhaust buffer tank 4. By setting the check valve 11, the probability of liquid and gas backflow can be greatly reduced, so as to improve the use reliability and test accuracy of the air supply module 100 of the test equipment.

[0050] In some embodiments of the present utility model, as Figure 1 and Figure 2As shown, the air supply module 100 of the test device further includes: a first pressure sensor 12 and a second pressure sensor 13. The first pressure sensor 12 is electrically connected to the controller 7 and is used to detect the air pressure information in the intake buffer tank 3. The second pressure sensor 13 is electrically connected to the controller 7 and is used to detect the air pressure information in the exhaust buffer tank 4.

[0051] Among them, the air supply module 100 of the test device further includes a first pressure sensor 12 and a second pressure sensor 13. The first pressure sensor 12 can be arranged in the intake buffer tank 3. The first pressure sensor 12 is electrically connected to the controller 7. As some embodiments of the present application, the first pressure sensor 12 is connected to the controller 7 through a wire harness, and the first pressure sensor 12 can detect the air pressure information in the intake buffer tank 3. The second pressure sensor 13 can be arranged in the exhaust buffer tank 4. The second pressure sensor 13 is electrically connected to the controller 7. As some embodiments of the present application, the second pressure sensor 13 is connected to the controller 7 through a wire harness, and the second pressure sensor 13 can detect the air pressure information in the exhaust buffer tank 4.

[0052] The controller 7 is configured to control the vacuum pump 5 and the first pressure regulating valve 2 according to the information detected by the first pressure sensor 12 and the second pressure sensor 13. That is to say, the first pressure sensor 12 and the second pressure sensor 13 can respectively detect the air pressure information in the intake buffer tank 3 and the exhaust buffer tank 4, and feed back the detected air pressure information to the controller 7. The controller 7 can compare the information fed back by the first pressure sensor 12 and the second pressure sensor 13 with the preset air pressure, and then control the vacuum pump 5 and the first pressure regulating valve 2 to adjust the air pressure in the air flow path 21.

[0053] As some embodiments of the present application, the controller 7 is configured to control the vacuum pump 5, the first pressure regulating valve 2, and the second pressure regulating valve 9 according to the information detected by the first pressure sensor 12 and the second pressure sensor 13 to adjust the air pressure in the air flow path 21.

[0054] By making the air supply module 100 of the test device further include a first pressure sensor 12 and a second pressure sensor 13, and making the first pressure sensor 12 and the second pressure sensor 13 respectively used to detect the air pressure information in the intake buffer tank 3 and the exhaust buffer tank 4, the opening degree of the first pressure regulating valve 2 and the rotation speed of the vacuum pump 5 can be accurately controlled according to the air pressure information in the intake buffer tank 3 and the exhaust buffer tank 4, so that the air supply module 100 of the test device can accurately simulate different altitude environments (different low oxygen pressures), which is beneficial to improving the test accuracy of the air supply module 100 of the test device.

[0055] In some embodiments of the present invention, such as Figure 1 andFigure 2 As shown in Figure 2 , the air supply module 100 of the test device further includes: a drain valve 15, and the drain valve 15 is connected to the intake buffer tank 3.

[0056] Among them, the air supply module 100 of the test device further includes a drain valve 15. The drain valve 15 is connected to the intake buffer tank 3 through a pipeline. When the drain valve 15 is opened, the liquid in the intake buffer tank 3 is discharged through the drain valve 15.

[0057] By making the air supply module 100 of the test device further include a drain valve 15, the drain valve 15 can be opened after the test to discharge the liquid in the intake buffer tank 3, which is beneficial to the reliability of use of the air supply module 100 of the test device.

[0058] In some embodiments of the present invention, as Figure 1 and Figure 2 shown, the drain valve 15 is connected to the controller 7 or configured as a manual valve.

[0059] Among them, the air supply module 100 of the test device further includes a drain valve 15. The drain valve 15 is connected to the intake buffer tank 3 through a pipeline. When the drain valve 15 is opened, the liquid in the intake buffer tank 3 is discharged through the drain valve 15.

[0060] As some embodiments of the present application, the drain valve 15 is electrically connected to the controller 7, and the controller 7 can control the opening or closing of the drain valve 15. Such a setting can facilitate the control of the drain valve 15.

[0061] As some embodiments of the present application, the drain valve 15 is configured as a manual valve, and the drain valve 15 can be directly opened or closed manually. It should be noted that if the drain valve 15 is configured as a manual valve, the drain valve 15 can be manually opened after the test to discharge the liquid in the intake buffer tank 3. It can be understood that the water storage rate in the intake buffer tank 3 is much lower than the water storage rate in the exhaust buffer tank 4. By configuring the drain valve 15 as a manual valve, not only can the use requirements and test requirements be met, but also the cost of the air supply module 100 of the test device can be reduced.

[0062] In some embodiments of the present invention, as Figure 1 and Figure 2 shown, the air supply module 100 of the test device further includes: a flow meter 16, the flow meter 16 is arranged in the air flow path 21 and downstream of the exhaust buffer tank 4, and the flow meter 16 is electrically connected to the controller 7.

[0063] Among them, the air supply module 100 of the test device further includes a flow meter 16. The flow meter 16 is arranged in the air flow path 21, and the flow meter 16 is arranged downstream of the exhaust buffer tank 4. As some embodiments of the present application, the flow meter 16 is arranged downstream of the second pressure regulating valve 9, and the flow meter 16 is arranged upstream of the vacuum pump 5. The flow meter 16 is connected to the second pressure regulating valve 9 through a pipeline, and the flow meter 16 is connected to the vacuum pump 5 through a pipeline. The flow meter 16 is electrically connected to the controller 7. As some embodiments of the present application, the flow meter 16 is connected to the controller 7 through a wire harness.

[0064] The flow meter 16 can measure the air flow rate in the air flow path 21 and feed back the air flow rate data in the air flow path 21 to the controller 7. The controller 7 can perform data calibration according to the air flow rate data and the high altitude atmospheric pressure, and control the rotation speed of the vacuum pump 5, the opening degree of the first pressure regulating valve 2, and the opening degree of the second pressure regulating valve 9 according to the air flow rate data, so that the air supply module 100 of the test device can more accurately simulate different altitude environments (different low oxygen pressures), which is beneficial to further improving the test accuracy of the air supply module 100 of the test device.

[0065] Moreover, the flow meter 16 can detect the airtightness of the air supply module 100 of the test device. As some embodiments of the present application, when the first pressure regulating valve 2 is in a small opening state (such as 5.0%), if the measured flow rate of the flow meter 16 is lower than a certain value (for example, the factory calibration value), the airtightness of the air supply module 100 of the test device is qualified.

[0066] In some embodiments of the present invention, such as Figure 1 and Figure 2 shown, the outlet of the vacuum pump 5 is communicated with the outside.

[0067] It can be understood that the outlet of the vacuum pump 5 is communicated with the outside to discharge the gas generated by the fuel cell 99 out of the air flow path 21. Here, the outside can be understood as outside the air supply module 100 of the test device. As some embodiments of the present application, the outlet of the vacuum pump 5 can be connected to the inlet of the tail exhaust device in the laboratory.

[0068] By making the outlet of the vacuum pump 5 communicate with the outside, the gas generated by the fuel cell 99 can be discharged through the vacuum pump 5.

[0069] In some embodiments of the present invention, such as Figure 1 and Figure 2 shown, the air supply module 100 of the test device further includes: an air filter 1. The air filter 1 is arranged upstream of the first pressure regulating valve 2 and is connected to the first pressure regulating valve 2.

[0070] Among them, the air supply module 100 of the test device further includes an air filter 1. The air filter 1 is arranged upstream of the first pressure regulating valve 2, and the air filter 1 is connected to the first pressure regulating valve 2 through a pipeline.

[0071] By making the air supply module 100 of the test device further include an air filter 1, the probability of impurities and dust entering the fuel cell 99 through the air supply module 100 of the test device can be reduced, which is beneficial to improving the use reliability of the air supply module 100 of the test device.

[0072] In some embodiments of the present utility model, as Figure 2 shown, the air supply module 100 of the test device further includes: a first frame 17, a second frame 18 and a sample holder 19. The first pressure regulating valve 2 and the intake buffer tank 3 are both arranged in the first frame 17. The exhaust buffer tank 4, the vacuum pump 5 and the drain pump 6 are all arranged in the second frame 18. The controller 7 is arranged in the first frame 17 or the second frame 18. The sample holder 19 is adapted to support the fuel cell 99. The first frame 17, the second frame 18 and the sample holder 19 are all provided with rollers 20.

[0073] Among them, the air supply module 100 of the test device further includes a first frame 17, a second frame 18 and a sample holder 19. The first pressure regulating valve 2 and the intake buffer tank 3 are both arranged in the first frame 17. As some embodiments of the present application, the first pressure regulating valve 2, the intake buffer tank 3, the air filter 1, the drain valve 15 and the first pressure sensor 12 are all arranged in the first frame 17. Among them, being arranged in the first frame 17 can be understood as being directly arranged in the first frame 17, or being indirectly arranged in the first frame 17 through some components. For example, the first pressure sensor 12 can be arranged in the intake buffer tank 3, and the intake buffer tank 3 can be arranged in the first frame 17 so that the first pressure sensor 12 is indirectly arranged in the first frame 17. The same applies to the remaining components, and details will not be elaborated here.

[0074] The exhaust buffer tank 4, the vacuum pump 5 and the drain pump 6 are all arranged in the second frame 18. As some embodiments of the present application, the exhaust buffer tank 4, the vacuum pump 5, the drain pump 6, the flowmeter 16, the second pressure sensor 13, the second pressure regulating valve 9, the check valve 11, the motor frequency converter 8 and the liquid level sensor 10 are all arranged in the second frame 18.

[0075] The controller 7 is arranged in the first frame 17, or the controller 7 is arranged in the second frame 18. The sample holder 19 can support the fuel cell 99. The bottoms of the first frame 17, the second frame 18 and the sample holder 19 are all provided with rollers 20. In this way, it is convenient for the overall movement of the air supply module 100 of the test device, and the air supply module 100 of the test device can be moved to a preset position according to actual needs, so as to facilitate the arrangement of the air supply module 100 of the test device.

[0076] In some embodiments of the present application, the pipeline between the intake buffer tank 3 and the fuel cell 99 is a stainless steel wire silicone hose, the pipeline between the exhaust buffer tank 4 and the fuel cell 99 is a stainless steel wire silicone hose, and the connecting pipe 14 is a stainless steel wire silicone hose. Such a setting can ensure the cleanliness of the air and reduce the probability of corrosion of the gas discharged from the fuel cell 99.

[0077] By making the air supply module 100 of the test equipment further include a first frame 17, a second frame 18, and a sample holder 19, the air supply module 100 of the test equipment and the fuel cell 99 can be independently moved, making the air supply module 100 of the test equipment convenient to use and flexible in layout, which is beneficial to reducing the layout difficulty of the air supply module 100 of the test equipment.

[0078] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0079] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0080] In the description of the present utility model, the meaning of "a plurality" is two or more.

[0081] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0082] In the description of the present utility model, the first feature being "above", "above the", and "on the" second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0083] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An air supply module for an air test device, characterized in that: include: A first pressure regulating valve (2), an air intake buffer tank (3), an exhaust buffer tank (4), and a vacuum pump (5); the air intake buffer tank (3), the exhaust buffer tank (4), the first pressure regulating valve (2), and the vacuum pump (5) are used to form an air flow path (21) with a fuel cell (99); and the air intake buffer tank (3) and the exhaust buffer tank (4) are respectively suitable for being connected to an air inlet and an air outlet of the fuel cell (99); and the first pressure regulating valve (2) is arranged upstream of the air intake buffer tank (3); a drainage pump (6), the drainage pump (6) being connected to the exhaust buffer tank (4) and being used to discharge the liquid in the exhaust buffer tank (4); a controller (7), wherein the controller (7) is electrically connected to the first pressure regulating valve (2), the vacuum pump (5) and the drainage pump (6); A connecting pipe (14), wherein the connecting pipe (14) connects the air intake buffer tank (3) and the exhaust buffer tank (4).

2. The air supply module of the test equipment according to claim 1, characterized in that: Also includes: A second pressure regulating valve (9), the second pressure regulating valve (9) is arranged in the air flow path (21) and is located downstream of the exhaust buffer tank (4), and the second pressure regulating valve (9) is electrically connected to the controller (7).

3. The air side air supply module of the test equipment according to claim 1, characterized in that: Also includes: A liquid level sensor (10), the liquid level sensor (10) being electrically connected to the controller (7), the liquid level sensor (10) being arranged in the exhaust buffer tank (4) and used for detecting liquid level information in the exhaust buffer tank (4), and the controller (7) being capable of controlling the operation of the drainage pump (6) according to the liquid level information.

4. The air side air supply module of the test equipment according to claim 1, characterized in that: Also includes: A check valve (11), the check valve (11) is connected to the drainage pump (6), and the check valve (11) is constructed to conduct one-way from the exhaust buffer tank (4) to the drainage pump (6).

5. The air supply module of the test equipment according to claim 1, characterized in that: Also includes: A first pressure sensor (12) and a second pressure sensor (13), wherein the first pressure sensor (12) is electrically connected to the controller (7) and is used to detect air pressure information in the intake buffer tank (3), and the second pressure sensor (13) is electrically connected to the controller (7) and is used to detect air pressure information in the exhaust buffer tank (4).

6. The air side air supply module of the test equipment according to claim 1, characterized in that: Also includes: A water discharge valve (15), wherein the water discharge valve (15) is connected to the air intake buffer tank (3).

7. The air supply module of the test equipment according to claim 6, characterized in that: The drain valve (15) is connected to the controller (7) or is configured as a manual valve.

8. The air side air supply module of the test equipment according to claim 1, characterized in that: Also includes: A flow meter (16), wherein the flow meter (16) is disposed in the air flow path (21) and is located downstream of the exhaust buffer tank (4), and the flow meter (16) is electrically connected to the controller (7).

9. The air side air supply module of the test equipment according to claim 1, characterized in that: Also includes: An air filter (1), wherein the air filter (1) is arranged upstream of a first pressure regulating valve (2) and is connected to the first pressure regulating valve (2).

10. The air supply module of the test equipment according to any one of claims 1 to 9, characterized in that: Also includes: A first frame (17), a second frame (18) and a sample holder (19); the first pressure regulating valve (2) and the air intake buffer tank (3) are both arranged on the first frame (17); the exhaust buffer tank (4), the vacuum pump (5) and the drainage pump (6) are all arranged on the second frame (18); the controller (7) is arranged on the first frame (17) or the second frame (18); the sample holder (19) is suitable for supporting the fuel cell (99); the first frame (17), the second frame (18) and the sample holder (19) are all provided with rollers (20).

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