Cold and hot oscillation cycle test equipment for bipolar plate of fuel cell

Abstract

The utility model discloses fuel cell bipolar plate cold and hot oscillation cycle test equipment, which comprises a high-temperature control module, a low-temperature control module, a bipolar plate fixing tool and an operating mechanism, and is characterized in that the interior of the high-temperature control module is used for accommodating water and heating the water in the high-temperature control module; the interior of the low-temperature control module is used for containing water and cooling the water in the low-temperature control module. The bipolar plate fixing tool is used for installing a bipolar plate to be tested; and the operating mechanism is used for grabbing the bipolar plate fixing tool, transferring the bipolar plate fixing tool and the bipolar plate into the high-temperature control module together and transferring the bipolar plate fixing tool and the bipolar plate into the low-temperature control module together. According to the operation mechanism, the bipolar plate fixing tool and the bipolar plate are transferred together, soaked in water in the high-temperature control module and soaked in water in the low-temperature control module together, and the bipolar plate is observed and tested after being operated for multiple times, so that the reliability of the bipolar plate under low-temperature and high-temperature water bath alternation can be simulated.

Description

Technical Field

[0001] The utility model relates to a fuel cell bipolar plate cold and hot shock cycle test device. Background Art

[0002] At present, the service life of the fuel cell bipolar plate can only be understood after the bipolar plate is actually installed and operated in the fuel cell stack, and the fuel cell bipolar plate lacks long-term reliability verification. For example: the structural test of the fuel cell under long-term shutdown and operation conditions, the temperature is about 20 °C at room temperature during shutdown, and about 80 °C during operation. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defect that the existing fuel cell bipolar plate lacks long-term reliability verification before use, and provide a fuel cell bipolar plate cold and hot shock cycle test device.

[0004] The utility model solves the above technical problem through the following technical solutions:

[0005] A fuel cell bipolar plate cold and hot shock cycle test device, which comprises:

[0006] A high-temperature control module, the inside of which is used to hold water and heat the water inside;

[0007] A low-temperature control module, the inside of which is used to hold water and cool the water inside;

[0008] A bipolar plate fixing tooling, which is used to install the bipolar plate to be tested;

[0009] An operating mechanism, which is used to grab the bipolar plate fixing tooling and transfer the bipolar plate fixing tooling and the bipolar plate together into the high-temperature control module and into the low-temperature control module.

[0010] In this solution, adopting the above structural form, the operating mechanism transfers the bipolar plate fixing tooling and the bipolar plate together, soaks them in the water in the high-temperature control module for a certain period of time, and then transfers the bipolar plate fixing tooling and the bipolar plate together into the water in the low-temperature control module for soaking, and operates in a cycle. After such an operation is required for a certain number of times, the bipolar plate is taken out after several operations to observe the appearance and test the air tightness, so as to simulate the reliability of the bipolar plate under the alternating cold and hot water baths, realize the reliability verification, and thus understand the service life of the bipolar plate. At the same time, the overall structure of the fuel cell bipolar plate cold and hot shock cycle test device is simple, very convenient to use, and the device can operate continuously with high stability and reliability.

[0011] Preferably, the low-temperature control module includes a water tank, a chiller, a heat exchanger, and a circulation pipeline. The water tank is used to hold water. The circulation pipeline is connected between the water tank and the heat exchanger to form a circulating water path among the water tank, the circulation pipeline, and the heat exchanger. The chiller is connected to and communicates with the heat exchanger to perform heat exchange between the chiller and the circulating water path.

[0012] In this solution, with the above structural form, the chiller provides a refrigeration function and provides a cooling liquid. The cooling liquid exchanges heat with the water in the circulating water path in the heat exchanger, so that the temperature of the water in the circulating water path decreases, thereby realizing the cooling of the water in the water tank. The temperature can be controlled to ensure a constant low temperature. At the same time, the overall structure is simple and very convenient to use.

[0013] Preferably, the low-temperature control module further includes a first temperature detection component, which is connected to the water tank and used to detect the temperature of the water in the water tank.

[0014] In this solution, with the above structural form, the first temperature detection component is used to detect the temperature of the water in the water tank, realizing temperature control, ensuring a constant low temperature, and having high stability.

[0015] Preferably, the low-temperature control module further includes a first water pump, which is connected to the circulation pipeline.

[0016] In this solution, with the above structural form, the first water pump is used to provide power, so that the water in the circulating water path can circulate, improving the heat exchange efficiency, realizing temperature control, and ensuring a constant low temperature.

[0017] Preferably, the high-temperature control module includes a high-temperature water tank and a heating device. The high-temperature water tank is used to hold water. The heating device is arranged in the high-temperature water tank and used to heat the water.

[0018] In this solution, with the above structural form, the heating device has a heating function. The heating device is arranged in the high-temperature water tank and used to heat the water, thereby realizing the increase in the temperature of the water in the high-temperature water tank. The overall structure is simple and very convenient to use.

[0019] Preferably, the high-temperature control module further includes a water replenishing device, which is connected to the high-temperature water tank and used to replenish water to the high-temperature water tank.

[0020] In this solution, with the above structural form, the water replenishing device is used to transport water into the high-temperature water tank to replenish the water in the high-temperature water tank, effectively preventing the water in the high-temperature water tank from being dried up and having high safety and stability.

[0021] Preferably, the water replenishing device includes a supplementary water source pipeline, a second water pump, and a timer. The supplementary water source pipeline is connected to and communicates with the high-temperature water tank. The second water pump is connected to the supplementary water source pipeline, and the timer is connected to the second water pump.

[0022] In this solution, adopting the above structural form can effectively avoid the phenomenon that the water level in the high-temperature water tank drops and causes it to dry out, and has high safety and stability.

[0023] Preferably, the high-temperature control module further includes a second temperature detection component, which is connected to the high-temperature water tank and is used to detect the temperature of the water in the high-temperature water tank.

[0024] In this solution, adopting the above structural form, the second temperature detection component is used to detect the temperature of the water in the high-temperature water tank, enabling temperature control, ensuring a constant low temperature, and having high stability.

[0025] Preferably, the high-temperature control module further includes a fan, which faces the high-temperature water tank and is used to blow away the water vapor generated during the heating process.

[0026] In this solution, adopting the above structural form, the fan is used to blow away the water vapor generated during the heating process, thus effectively preventing the accumulation of water vapor.

[0027] Preferably, the operating mechanism is a robot.

[0028] In this solution, adopting the above structural form, the robotic arm of the robot is used to grasp the bipolar plate fixing tooling and the bipolar plate and transfer the bipolar plate fixing tooling and the bipolar plate into the high-temperature control module or the low-temperature control module, realizing automated operation and being very convenient to use. At the same time, using a robot can achieve the angular inclination of the bipolar plate fixing tooling and the bipolar plate, which is beneficial for rapid drainage.

[0029] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be arbitrarily combined to obtain various preferred embodiments of the present invention.

[0030] The positive and progressive effects of the present invention are as follows:

[0031] For the fuel cell bipolar plate thermal and cold shock cycling test equipment of the present invention, the operating mechanism transfers the bipolar plate fixing tooling and the bipolar plate together and immerses them in the water in the high-temperature control module and also immerses them in the water in the low-temperature control module together. After several operations, the bipolar plate will be observed and tested, so as to simulate the reliability of the bipolar plate under alternating low-temperature and high-temperature water baths. Description of the Drawings

[0032] Figure 1Schematic perspective view of the fuel cell bipolar plate thermal shock cycle test equipment according to an embodiment of the present utility model.

[0033] Figure 2 Schematic top view of the fuel cell bipolar plate thermal shock cycle test equipment according to an embodiment of the present utility model.

[0034] Description of reference numerals:

[0035] High-temperature control module 1

[0036] High-temperature water tank 11

[0037] Heating device 12

[0038] Water replenishing device 13

[0039] Supplementary water source pipeline 131

[0040] Second water pump 132

[0041] Timer 133

[0042] Fan 14

[0043] Low-temperature control module 2

[0044] Water tank 21

[0045] Chiller 22

[0046] Heat exchanger 23

[0047] Circulation pipeline 24

[0048] First water pump 25

[0049] Bipolar plate fixing tooling 3

[0050] Operating mechanism 4

[0051] Bipolar plate 10 Detailed implementation manners

[0052] The present utility model will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present utility model is not limited to the scope of the described examples.

[0053] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present utility model discloses a fuel cell bipolar plate thermal and cold shock cycle test device. The fuel cell bipolar plate thermal and cold shock cycle test device includes a high-temperature control module 1, a low-temperature control module 2, a bipolar plate fixing tooling 3, and an operating mechanism 4. The inside of the high-temperature control module 1 is used to hold water and heat the water inside it; the inside of the low-temperature control module 2 is used to hold water and cool the water inside it; the bipolar plate fixing tooling 3 is used to install the bipolar plate 10 to be tested; the operating mechanism 4 is used to grab the bipolar plate fixing tooling 3 and transfer the bipolar plate fixing tooling 3 and the bipolar plate 10 together into the high-temperature control module 1 and into the low-temperature control module 2 together.

[0054] The inside of the high-temperature control module 1 is used to hold water and heat the water inside it, so that the temperature of the water in the high-temperature control module 1 rises. The operating mechanism 4 grabs the bipolar plate fixing tooling 3 and the bipolar plate 10 together and transfers them into the high-temperature control module 1, so that the bipolar plate 10 will be immersed in the water in the high-temperature control module 1. The inside of the low-temperature control module 2 is used to hold water and cool the water inside it, so that the temperature of the water in the low-temperature control module 2 decreases. The operating mechanism 4 grabs the bipolar plate fixing tooling 3 and the bipolar plate 10 together and transfers them into the low-temperature control module 2, so that the bipolar plate 10 will be immersed in the water in the low-temperature control module 2. During the use of the fuel cell bipolar plate thermal and cold shock cycle test device, the operating mechanism 4 transfers the bipolar plate fixing tooling 3 and the bipolar plate 10 together and immerses them in the water in the high-temperature control module 1 for a certain period of time, and then transfers the bipolar plate fixing tooling 3 and the bipolar plate 10 together into the water in the low-temperature control module 2 for immersion, and operates in a cycle. After such an operation is performed a required number of times, after operating several times, the bipolar plate 10 will be taken out to observe the appearance and test the airtightness, so as to simulate the reliability of the bipolar plate 10 under the alternating low-temperature and high-temperature water baths, realize the reliability verification, and thus understand the life situation of the bipolar plate 10. At the same time, the overall structure of the fuel cell bipolar plate thermal and cold shock cycle test device is simple, very convenient to use, and the device can operate continuously with high stability and reliability.

[0055] In this embodiment, the operating mechanism 4 is a robot. The robotic arm of the robot is used to grab the bipolar plate fixing tooling 3 and the bipolar plate 10 and transfer the bipolar plate fixing tooling 3 and the bipolar plate 10 into the high-temperature control module 1 or the low-temperature control module 2, realizing automated operation and being very convenient to use. At the same time, using a robot can tilt the angles of the bipolar plate fixing tooling 3 and the bipolar plate 10, which is conducive to rapid drainage.

[0056] The low-temperature control module 2 includes a water tank 21, a chiller 22, a heat exchanger 23, and a circulation pipeline 24. The water tank 21 is used to hold water. The circulation pipeline 24 is connected between the water tank 21 and the heat exchanger 23 to form a circulating water path among the water tank 21, the circulation pipeline 24, and the heat exchanger 23. The chiller 22 is connected to and communicates with the heat exchanger 23 to perform heat exchange between the chiller 22 and the circulating water path.

[0057] The heat exchanger 23 has a cold source inlet, a cold source outlet, a water inlet, and a water outlet. The circulation pipeline 24 is connected to the water inlet and the water outlet and communicates with the inside of the heat exchanger 23, so that the water tank 21 and the heat exchanger 23 are connected through the circulation pipeline 24 to form a circulating water path, enabling the water in the water tank 21 to circulate through the circulation pipeline 24 and the inside of the heat exchanger 23 via the circulating water path. The chiller 22 is connected to the cold source inlet and the cold source outlet and communicates with the inside of the heat exchanger 23. The chiller 22 provides a refrigeration function and provides a cooling liquid. The cooling liquid exchanges heat with the water in the circulating water path inside the heat exchanger 23, reducing the temperature of the water in the circulating water path, thereby achieving the cooling of the water in the water tank 21. The temperature can be controlled to ensure a constant low temperature. At the same time, the overall structure is simple and very convenient to use.

[0058] The low-temperature control module 2 further includes a first water pump 25, and the first water pump 25 is connected to the circulation pipeline 24. The first water pump 25 is used to provide power, enabling the water in the circulating water path to circulate, improving the heat exchange efficiency, enabling the temperature to be controlled, and ensuring a constant low temperature.

[0059] The low-temperature control module 2 further includes a first temperature detection component, which is connected to the water tank 21 and is used to detect the temperature of the water in the water tank 21. The first temperature detection component is used to detect the temperature of the water in the water tank 21. When the detected temperature by the first temperature detection component is lower than the set temperature, the output power of the first water pump 25 can be controlled to decrease and / or the output power of the chiller 22 can be decreased or stopped, effectively avoiding further decrease in the temperature of the water in the water tank 21. When the detected temperature by the first temperature detection component is higher than the set temperature, the output power of the first water pump 25 can be controlled to increase and / or the output power of the chiller 22 can be increased, effectively avoiding further increase in the temperature of the water in the water tank 21. The temperature can be controlled to ensure a constant low temperature and high stability.

[0060] Wherein, the first temperature detection component is electrically connected to the chiller 22 and / or the first water pump 25 and is used to control the on / off and output power of the chiller 22 and / or the first water pump 25. The first temperature detection component can display the detected temperature.

[0061] The high-temperature control module 1 includes a high-temperature water tank 11 and a heating device 12. The high-temperature water tank 11 is used to hold water, and the heating device 12 is arranged in the high-temperature water tank 11 and used to heat the water. The heating device 12 has a heating function. It is arranged in the high-temperature water tank 11 and used to heat the water, so as to increase the temperature of the water in the high-temperature water tank 11. The overall structure is simple and very convenient to use. Among them, the heating device 12 can include a plurality of electric heating rods, and the plurality of electric heating rods are arranged at intervals on the bottom of the high-temperature water tank 11.

[0062] The high-temperature control module 1 further includes a second temperature detection component, which is connected to the high-temperature water tank 11 and used to detect the temperature of the water in the high-temperature water tank 11. The second temperature detection component is used to detect the temperature of the water in the high-temperature water tank 11. When the detected temperature by the second temperature detection component is higher than the set temperature, the output power of the heating device 12 can be controlled to decrease or stop heating, so as to reduce the temperature of the water in the high-temperature water tank 11. When the detected temperature by the second temperature detection component is lower than the set temperature, the output power of the heating device 12 can be controlled to increase, so as to increase the temperature of the water in the high-temperature water tank 11. The temperature can be controlled to ensure a constant low temperature and high stability.

[0063] Among them, the second temperature detection component is electrically connected to the heating device 12 and used to control the on / off and output power of the heating device 12, realizing automatic control and being very convenient to use. The second temperature detection component can display the detected temperature.

[0064] The high-temperature control module 1 further includes a water replenishing device 13, which is connected to the high-temperature water tank 11 and used to replenish water into the high-temperature water tank 11. The water replenishing device 13 is used to transport water into the high-temperature water tank 11, so as to replenish the water in the high-temperature water tank 11, effectively avoiding the water in the high-temperature water tank 11 from being burned dry, and having high safety and stability.

[0065] The water replenishing device 13 includes a supplementary water source pipeline 131, a second water pump 132 and a timer 133. The supplementary water source pipeline 131 is connected to the high-temperature water tank 11 and communicates with the high-temperature water tank 11. The second water pump 132 is connected to the supplementary water source pipeline 131, and the timer 133 is connected to the second water pump 132. The timer 133 is used to calculate the opening time of the second water pump 132, so as to ensure the opening time of the second water pump 132 and used to replenish water. The second water pump 132 is used to provide power, so that the water in the supplementary water source pipeline 131 will flow into the high-temperature water tank 11 to realize the replenishment of the water in the high-temperature water tank 11, thus effectively avoiding the phenomenon that the water level in the high-temperature water tank 11 drops and causes it to be burned dry, and having high safety and stability.

[0066] Among them, a water level detection component may be provided in the high-temperature water tank 11. The water level detection component is electrically connected to the water replenishing device 13 and is used for the switch of the water replenishing device 13. When the water level in the high-temperature water tank 11 is relatively low, after the water level detection component detects that the water level is lower than the set value, it will control the second water pump 132 to turn on, so that the water in the supplementary water source pipeline 131 is replenished into the high-temperature water tank 11, thereby enabling the high-temperature control module 1 to have an automatic water replenishing function. At the same time, after the second water pump 132 is turned on, the timer 133 will be used to calculate the opening time, and will control the second water pump 132 to turn off after determining that the opening time is met.

[0067] The high-temperature control module 1 further includes a fan 14. The fan 14 faces the high-temperature water tank 11 and is used to blow away the water vapor generated during the heating process. The water in the high-temperature water tank 11 will generate water vapor during the heating process by the heating device 12. The fan 14 is used to blow away the water vapor generated during the heating process, thereby effectively preventing the accumulation of water vapor.

[0068] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A fuel cell bipolar plate thermal shock cycling test device, characterized in that It includes: A high-temperature control module, the interior of which is used to hold water and heat the water therein; A low-temperature control module, the interior of which is used to hold water and cool the water therein; A bipolar plate fixing tooling, which is used to install the bipolar plate to be tested; An operating mechanism, which is used to grasp the bipolar plate fixing tooling and transfer the bipolar plate fixing tooling and the bipolar plate together into the high-temperature control module and together into the low-temperature control module.

2. The fuel cell bipolar plate thermal shock cycling test equipment according to claim 1, characterized in that The low-temperature control module includes a water tank, a chiller, a heat exchanger and a circulation pipeline. The water tank is used to hold water. The circulation pipeline is connected between the water tank and the heat exchanger to form a circulating water path among the water tank, the circulation pipeline and the heat exchanger. The chiller is connected to the heat exchanger and communicates with the heat exchanger to perform heat exchange between the chiller and the circulating water path.

3. The fuel cell bipolar plate thermal shock cycle test device according to claim 2, characterized in that The low-temperature control module further includes a first temperature detection component, which is connected to the water tank and used to detect the temperature of the water in the water tank.

4. The fuel cell bipolar plate thermal shock cycling test equipment according to claim 2, wherein The low-temperature control module further includes a first water pump, which is connected to the circulation pipeline.

5. The fuel cell bipolar plate thermal shock cycle test device according to claim 1, characterized in that The high-temperature control module includes a high-temperature water tank and a heating device. The high-temperature water tank is used to hold water. The heating device is arranged in the high-temperature water tank and used to heat the water.

6. The fuel cell bipolar plate thermal shock cycle test device according to claim 5, characterized in that The high-temperature control module further includes a water replenishing device, which is connected to the high-temperature water tank and used to replenish water into the high-temperature water tank.

7. The fuel cell bipolar plate thermal shock cycle test equipment according to claim 6, characterized in that, The water replenishing device includes a supplementary water source pipeline, a second water pump and a timer. The supplementary water source pipeline is connected to the high-temperature water tank and communicates with the high-temperature water tank. The second water pump is connected to the supplementary water source pipeline. The timer is connected to the second water pump.

8. The fuel cell bipolar plate thermal shock cycling test device according to claim 5, wherein, The high-temperature control module further includes a second temperature detection component, which is connected to the high-temperature water tank and used to detect the temperature of the water in the high-temperature water tank.

9. The fuel cell bipolar plate thermal shock cycle test equipment according to claim 5, characterized in that, The high-temperature control module further includes a fan, which faces the high-temperature water tank and is used to blow away the water vapor generated during the heating process.

10. The fuel cell bipolar plate thermal shock cycle test device according to claim 1, characterized in that, The operating mechanism is a robot.

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