Fuel cell cooling test system

Abstract

The invention discloses a fuel cell cooling test system, and relates to the technical field of test systems, the fuel cell cooling test system comprises a storage box, a cooling flow path, a plurality of flow detection members, a plurality of pressure detection members, a plurality of viscosity detection members and a control device, the cooling flow path is provided with an electric control driving pump, a first flow path unit and a second flow path unit, the first flow path unit comprises two first sub-flow paths which are connected in parallel, the second flow path unit comprises a second sub-flow path, and the second sub-flow path is provided with a first proportioning valve; and the control device is configured to control the opening degree of the first proportioning valve and control the electric control driving pump to work, and is used for receiving detection information of the flow detection piece, detection information of the pressure detection piece and detection information of the viscosity detection piece. According to the fuel cell cooling test system provided by the embodiment of the invention, a whole vehicle test is not needed, harsh test conditions are not needed, the test cost is low, the test period is short, the test result is clear and visual, and the test efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of test systems, and in particular to a fuel cell cooling test system. Background Art

[0002] In the related technologies, the fuel cell cooling medium flow test and regulation test can be used to evaluate whether the cooling system parameters meet the design requirements during the fuel cell development stage, and provide data support for the calculation of fuel cell cooling performance and the development of the vehicle cooling system. The existing fuel cell cooling medium flow test and regulation test mainly has many problems, such as harsh test conditions, long test cycle, high test cost, inability to measure the actual vehicle flow, and limited space for bench test simulation of the whole vehicle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a fuel cell cooling test system, which does not require a whole vehicle test, does not require harsh test conditions, has low test costs, short test cycles, clear and intuitive test results, and high test efficiency.

[0004] According to an embodiment of the present invention, a fuel cell cooling test system comprises: a storage box, a cooling flow path, a plurality of flow detection elements, a plurality of pressure detection elements, a plurality of viscosity detection elements and a control device, wherein the storage box is used to store a cooling medium, the cooling flow path has a flow path inlet and a flow path outlet, the flow path inlet and the flow path outlet are both connected to the storage box, wherein the cooling flow path has an electrically controlled drive pump, a first flow path unit and a second flow path unit, the electrically controlled drive pump, the first flow path unit and the second flow path unit are connected in series, the first flow path unit comprises two parallel first sub-flow paths, one of the first sub-flow paths is provided with a fuel cell stack, the other of the first sub-flow paths is provided with an intercooler, the second flow path unit comprises a second sub-flow path, the The second sub-flow path is provided with a first proportional control valve, a plurality of flow detection components are respectively provided in the second sub-flow path and each of the first sub-flow paths, a plurality of pressure detection components are respectively provided in the second sub-flow path and each of the first sub-flow paths, a plurality of viscosity detection components are respectively provided in the second sub-flow path and each of the first sub-flow paths, and the control device is communicatively connected with the first proportional control valve, the electrically controlled drive pump, a plurality of flow detection components, a plurality of pressure detection components and a plurality of viscosity detection components, and the control device is configured to control the opening of the first proportional control valve, control the operation of the electrically controlled drive pump, and receive detection information of the flow detection component, detection information of the pressure detection component and detection information of the viscosity detection component.

[0005] According to the fuel cell cooling test system of the embodiment of the present application, based on the multiple detection information received by the control device, the fuel cell cooling test system can directly, accurately and efficiently measure and analyze the performance of the fuel cell cooling system in the test room, thereby obtaining the optimal control logic of the fuel cell cooling system, so that the fuel cell can work within the appropriate temperature range. The fuel cell cooling test system does not require full vehicle testing, does not require harsh test conditions, has low test costs, short test cycles, clear and intuitive test results, and high test efficiency.

[0006] According to some embodiments of the present invention, the first flow path unit is connected in series between the electrically-controlled driven pump and the second flow path unit, and the electrically-controlled driven pump is located between the flow path inlet and the first flow path unit, and the cooling flow path also has a deionization device, the deionization device and the electrically-controlled driven pump are connected in series, and the deionization device is located between the flow path inlet and the first flow path unit.

[0007] According to some embodiments of the present invention, the storage box has a gas exhaust structure.

[0008] According to some embodiments of the present invention, the gas exhaust structure is constructed as an exhaust port, the exhaust port is provided with an opening and closing valve, and the control device is communicatively connected with the opening and closing valve to control the opening and closing valve to open or close the exhaust port.

[0009] According to some embodiments of the present invention, the storage tank is configured as an expansion tank.

[0010] According to some embodiments of the present invention, the cooling flow path also has a third flow path unit, the third flow path unit and the first flow path unit are connected in series, and the third flow path unit and the second flow path unit are connected in parallel, the third flow path unit includes a third sub-flow path, the third sub-flow path is provided with a second proportional control valve and a functional component, the second proportional control valve and the functional component are connected in series, and the third sub-flow path is provided with the flow detection component, the pressure detection component and the viscosity detection component, the control device is communicatively connected to the second proportional control valve to control the opening of the second proportional control valve.

[0011] According to some embodiments of the present invention, there are multiple third sub-flow paths, and the multiple third sub-flow paths are connected in parallel.

[0012] According to some embodiments of the present invention, there are three third sub-flow paths, and the functional components on the three third sub-flow paths are respectively a hydrogen heat exchanger, a PTC heater and a radiator.

[0013] According to some embodiments of the present invention, the first proportional regulating valve and the second proportional regulating valve have the same structure.

[0014] According to some embodiments of the present invention, the control device includes: a controller and a cloud, the controller and the cloud are communicatively connected, and the controller is communicatively connected to the first proportional control valve, the electronically controlled drive pump, the second proportional control valve, a plurality of the flow detection elements, a plurality of the pressure detection elements, and a plurality of the viscosity detection elements.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 is a schematic diagram of a fuel cell cooling test system according to an embodiment of the present application.

[0018] Reference numerals:

[0019] Fuel cell cooling test system 1,

[0020] Storage box 10,

[0021] Cooling flow path 20, electronically controlled drive pump 21, first flow path unit 22, first sub-flow path 221, fuel cell stack 222, intercooler 223, second flow path unit 23, second sub-flow path 231, first proportional regulating valve 232, deionization device 24, third flow path unit 25, third sub-flow path 251, second proportional regulating valve 252, hydrogen heat exchanger 253, PTC heater 254, radiator 255,

[0022] Flow detection element 30,

[0023] Control device 40 , controller 41 , cloud 42 . DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Reference below Figure 1 A fuel cell cooling test system 1 according to an embodiment of the present invention is described. The fuel cell cooling test system 1 can measure the flow distribution and flow resistance of the cooling medium in the fuel cell cooling system, thereby testing the cooling performance of the fuel cell cooling system, and can obtain the optimized control logic of the cooling system so that the fuel cell can operate within a suitable temperature range.

[0026] According to the fuel cell cooling test system 1 of the embodiment of the present invention, Figure 1 As shown, the fuel cell cooling test system 1 may include: a storage box 10, a cooling flow path 20, a plurality of flow detection elements 30, a plurality of pressure detection elements, a plurality of viscosity detection elements and a control device 40, the storage box 10 is used to store a cooling medium, the cooling flow path 20 has a flow path inlet and a flow path outlet, and the flow path inlet and the flow path outlet are both connected to the storage box 10, wherein the cooling flow path 20 has an electrically controlled drive pump 21, a first flow path unit 22 and a second flow path unit 23, the electrically controlled drive pump 21, the first flow path unit 22 and the second flow path unit 23 are connected in series, the first flow path unit 22 includes two parallel first sub-flow paths 221, one first sub-flow path 221 is provided with a fuel cell stack 222, the other first sub-flow path 221 is provided with an intercooler 223, and the second flow path unit 23 includes a first sub-flow path 221 connected in parallel. There are two sub-flow paths 231, the second sub-flow path 231 is provided with a first proportional regulating valve 232, a plurality of flow detection components 30 are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221, a plurality of pressure detection components are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221, a plurality of viscosity detection components are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221, a control device 40 is communicatively connected with the first proportional regulating valve 232, the electric-controlled drive pump 21, a plurality of flow detection components 30, a plurality of pressure detection components and a plurality of viscosity detection components, and the control device 40 is configured to control the opening of the first proportional regulating valve 232, control the operation of the electric-controlled drive pump 21, and receive detection information of the flow detection component 30, detection information of the pressure detection component and detection information of the viscosity detection component.

[0027] It should be noted that in the relevant technology, the fuel cell cooling medium flow test and regulation test can be used to evaluate whether the cooling system parameters meet the design requirements during the fuel cell development stage, and provide data support for the calculation of fuel cell cooling performance and the development of the vehicle cooling system. The existing fuel cell cooling medium flow test and regulation test mainly has many problems, such as harsh test conditions, long test cycle, high test cost, inability to measure the actual vehicle flow, and limited space for bench test simulation of the whole vehicle.

[0028] Based on this, the embodiment of the present application proposes a fuel cell cooling test system 1, in which the storage box 10 can be used to store a cooling medium, and the cooling medium can be a liquid such as cooling water that can play a cooling role. The flow path inlet and the flow path outlet of the cooling flow path 20 are both connected to the storage box 10, and the cooling medium can enter the cooling flow path 20 from the storage box 10 through the flow path inlet, and the cooling medium can flow in the cooling flow path 20, and the cooling medium can flow back to the storage box 10 from the cooling flow path 20 through the flow path outlet, thereby realizing the circulation of the cooling medium in the fuel cell cooling test system 1. The cooling flow path 20 has an electrically controlled driving pump 21, a first flow path unit 22, and a second flow path unit 23. The electrically controlled driving pump 21 can drive the cooling medium to flow, thereby realizing the effect of the cooling medium in the storage box 10 flowing into the cooling flow path 20. The electrically controlled driving pump 21 can be connected in series with the first flow path unit 22 and the second flow path unit 23, and the cooling medium can flow to the first flow path unit 22 and the second flow path unit 23 under the drive of the electrically controlled driving pump 21.

[0029] The first flow path unit 22 may include two parallel first sub-flow paths 221, one of the first sub-flow paths 221 is provided with a fuel cell stack 222, and the other first sub-flow path 221 is provided with an intercooler 223. The fuel cell stack 222 is connected in parallel with the intercooler 223, and the cooling medium can exchange heat with the cooling fuel cell stack 222, and the cooling medium can exchange heat with the intercooler 223, so as to achieve the effect of cooling the electronic components inside the fuel cell by the cooling medium. If the intercooler 223 and the fuel cell stack 222 are connected in series, the cooling medium flows through the intercooler 223 and then flows through the fuel cell stack 222, and the cooling medium will take away some ions from the intercooler 223, and the ions will react with the fuel cell stack 222, which will affect the safety of the fuel cell stack 222 and the cooling medium when exchanging heat. Therefore, the fuel cell stack 222 and the intercooler 223 are respectively arranged on the two parallel first sub-flow paths 221, which is conducive to improving the safety of the cooling medium when exchanging heat. The second flow path unit 23 may include a second sub-flow path 231 . The second sub-flow path 231 is provided with a first proportional regulating valve 232 . The opening of the first proportional regulating valve 232 can be adjusted, so as to achieve the effect of controlling the flow rate of the cooling medium in the second sub-flow path 231 .

[0030] There can be multiple flow detection components 30, which can be flow sensors. The multiple flow detection components 30 have the same structure. The multiple flow detection components 30 are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221. The second sub-flow path 231 and each first sub-flow path 221 are each provided with a flow detection component 30 corresponding thereto. The flow detection component 30 can be used to detect the flow of the cooling medium in the corresponding sub-flow path. There can be multiple pressure detection components, which can be pressure sensors. The multiple pressure detection components have the same structure. The multiple pressure detection components are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221. The second sub-flow path 231 and each first sub-flow path 221 are each provided with a pressure detection component corresponding thereto. The pressure detection component can be used to detect the pressure of the cooling medium in the corresponding sub-flow path. There may be multiple viscosity detection members, which may be viscosity sensors. The multiple viscosity detection members have the same structure. The multiple viscosity detection members are respectively arranged in the second sub-flow path 231 and each first sub-flow path 221. The second sub-flow path 231 and each first sub-flow path 221 are provided with corresponding viscosity detection members, which can be used to detect the viscosity of the cooling medium in the corresponding sub-flow path. The fuel cell cooling test system 1 can collect the flow, pressure and viscosity information of the cooling medium on each sub-flow path, and obtain the optimal control logic of the cooling system through analysis and processing.

[0031] The control device 40 can be communicatively connected with the first proportional control valve 232, the electrically controlled drive pump 21, multiple flow detection components 30, multiple pressure detection components and multiple viscosity detection components. The control device 40 can adjust the opening of the first proportional control valve 232, the control device 40 can drive the electrically controlled drive pump 21 to work, and the control device 40 can also receive detection information from the flow detection component 30, detection information from the pressure detection component and detection information from the viscosity detection component.

[0032] The control device 40 can drive the electric control drive pump 21 to work, thereby driving the cooling medium to flow from the storage box 10 into the cooling flow path 20. The control device 40 can control the opening of the first proportional regulating valve 232, thereby controlling the flow rate of the cooling medium flowing through the second sub-flow path 231. The cooling medium flows through the two first sub-flow paths 221, the cooling medium exchanges heat with the fuel cell stack 222 and the intercooler 223, the cooling medium flows through the second sub-flow path 231, and the cooling medium flows back to the storage box 10. The control device 40 receives the detection information of each flow detection component 30 on the second sub-flow path 231 and the two first sub-flow paths 221, the detection information of each pressure detection component, and the detection information of each viscosity detection component. As an example, the fuel cell cooling test system 1 can be used in conjunction with different environmental fields to simulate the use of fuel cells under different working conditions, so as to analyze and obtain the cooling system performance of the fuel cell under different working conditions.

[0033] According to the multiple detection information received by the control device 40, the fuel cell cooling test system 1 can directly, accurately and efficiently measure and analyze the performance of the fuel cell cooling system in the test room, thereby obtaining the optimal control logic of the fuel cell cooling system so that the fuel cell can work within a suitable temperature range. The fuel cell cooling test system 1 does not require a whole vehicle test, does not require harsh test conditions, has low test costs, short test cycles, clear and intuitive test results, and high test efficiency.

[0034] In some embodiments of the present invention, the first flow path unit 22 is connected in series between the electrically-controlled driven pump 21 and the second flow path unit 23, and the electrically-controlled driven pump 21 is located between the flow path inlet and the first flow path unit 22. The cooling flow path 20 also has a deionization device 24, the deionization device 24 and the electrically-controlled driven pump 21 are connected in series, and the deionization device 24 is located between the flow path inlet and the first flow path unit 22.

[0035] The electrically controlled driven pump 21 can drive the cooling medium in the storage box 10 to flow into the cooling flow path 20. The cooling medium enters the cooling flow path 20 from the flow path inlet, and flows through the first flow path unit 22 and the second flow path unit 23 in sequence, and then flows into the storage box 10 through the flow path outlet. The cooling flow path 20 also has a deionizer 24, which can remove conductive ions in the cooling medium so that the cooling medium can flow in the cooling flow path 20 in a pure state. The deionizer 24 and the electrically controlled driven pump 21 are connected in series, and the deionizer 24 can be located between the flow path inlet and the electrically controlled driven pump 21. The cooling medium can flow through the deionizer 24 first and then through the electrically controlled driven pump 21 under the drive of the electrically controlled driven pump 21. The deionization device 24 removes conductive ions from the cooling medium, and the pure cooling medium enters the first flow path unit 22 and exchanges heat with the fuel cell stack 222 and the intercooler 223. The deionization device 24 can reduce the conductivity of the cooling medium and improve the safety of the cooling medium during heat exchange, thereby ensuring the safety of the operation of the fuel cell cooling test system 1.

[0036] In some embodiments of the present invention, the storage box 10 has a gas exhaust structure.

[0037] There may be gas in the cooling medium, and the presence of gas will hinder the flow of the cooling medium, affect the heat conduction efficiency of the cooling medium, and reduce the cooling efficiency. Therefore, the storage box 10 can be provided with a gas exhaust structure, and the gas in the cooling medium can be discharged from the storage box 10 through the gas exhaust structure, thereby improving the effectiveness of the cooling medium and ensuring the cooling performance of the cooling system.

[0038] In some embodiments of the present invention, the gas exhaust structure is constructed as an exhaust port, and the exhaust port is provided with an opening and closing valve. The control device 40 is communicatively connected with the opening and closing valve to control the opening and closing valve to open or close the exhaust port.

[0039] The gas discharge structure may be configured as an exhaust port, and the exhaust port may be provided at the upper end of the storage box 10, so as to facilitate the exhaust of gas. The exhaust port may be provided with an on-off valve, and the control device 40 may be in communication connection with the on-off valve, and the control device 40 may control the on-off valve to be opened or closed. When the storage box 10 needs to be exhausted, the control device 40 controls the on-off valve to be opened so that the exhaust port is opened, and the gas may be exhausted from the exhaust port. When the storage box 10 does not need to be exhausted, the control device 40 controls the on-off valve to be closed so that the exhaust port is closed, thereby preventing the cooling medium in the storage box 10 from being exhausted from the exhaust port.

[0040] In some embodiments of the present invention, the storage tank 10 may be configured as an expansion tank.

[0041] The expansion water tank may include an expansion chamber, a pressure valve, a water tank inlet and a water tank outlet. The water tank inlet may be communicated with the flow path outlet, and the water tank outlet may be communicated with the flow path inlet, thereby realizing the communication between the expansion water tank and the cooling flow path 20. The volume of the expansion chamber may be automatically adjusted according to the pressure change. When the cooling medium is filled with gas or expands due to heat, the expansion chamber will expand accordingly to accommodate the cooling medium with an increased volume. At the same time, the pressure valve may automatically adjust the volume of the expansion chamber according to the pressure change, so that the storage box 10 can adapt to different environmental changes, and the fuel cell cooling test system 1 can adapt to the environment under different working conditions, and can complete the test under different working conditions.

[0042] In some embodiments of the present invention, the cooling flow path 20 also has a third flow path unit 25, the third flow path unit 25 and the first flow path unit 22 are connected in series, and the third flow path unit 25 and the second flow path unit 23 are connected in parallel, the third flow path unit 25 includes a third sub-flow path 251, the third sub-flow path 251 is provided with a second proportional control valve 252 and a functional component, the second proportional control valve 252 and the functional component are connected in series, and the third sub-flow path 251 is provided with a flow detection component 30, a pressure detection component and a viscosity detection component, and the control device 40 is communicated with the second proportional control valve 252 to control the opening of the second proportional control valve 252.

[0043] The third flow path unit 25 is connected in series with the first flow path unit 22, and the third flow path unit 25 is connected in parallel with the second flow path unit 23. After the cooling medium flows out of the first flow path unit 22, the cooling medium can flow to the second flow path unit 23 and the third flow path unit 25 at the same time. The third flow path unit 25 includes a third sub-flow path 251, and the third sub-flow path 251 is provided with a second proportional regulating valve 252 and a functional component. The second proportional regulating valve 252 can adjust the flow of the cooling medium in the third sub-flow path 251. The second proportional regulating valve 252 is connected in series with the corresponding functional component, and the cooling medium can exchange heat with the functional component to cool the functional component. The functional component can cooperate with the fuel cell stack 222 and the intercooler 223 to achieve the simulation of the actual fuel cell system operation. The third sub-flow path 251 is also provided with a flow detection element 30, a pressure detection element and a viscosity detection element. The control device 40 can receive the detection information of the flow detection element 30, the detection information of the pressure detection element and the detection information of the viscosity detection element on the third sub-flow path 251. The control device 40 can also be communicated with the second proportional control valve 252. The control device 40 can control the opening of the second proportional control valve 252, thereby controlling the flow of the cooling medium flowing through the third sub-flow path 251.

[0044] In some embodiments of the present invention, there are multiple third sub-flow paths 251 , and the multiple third sub-flow paths 251 are connected in parallel.

[0045] The fuel cell cooling test system 1 may include multiple functional parts, there may be multiple third sub-flow paths 251, and the multiple functional parts and the multiple third sub-flow paths 251 are arranged in a one-to-one correspondence. There may be multiple second proportional control valves 252, and each third sub-flow path 251 is provided with a functional part and a corresponding second proportional control valve 252. The multiple third sub-flow paths 251 are connected in parallel, so as to achieve the effect of heat exchange between the cooling medium and the multiple functional parts respectively.

[0046] In some embodiments of the present invention, there are three third sub-flow paths 251 , and the functional components on the three third sub-flow paths 251 are a hydrogen heat exchanger 253 , a PTC heater 254 , and a radiator 255 .

[0047] The hydrogen heat exchanger 253 can cool the hydrogen in the fuel cell to a temperature suitable for storage and transportation. The PTC warm air 254 has the advantages of low thermal resistance and high heat exchange efficiency. It can assist in heating the cooling medium during low-temperature cold start, so that the cooling medium reaches the required temperature as soon as possible, shortening the cold start time of the fuel cell system. The radiator 255 can dissipate the heat generated by the fuel cell stack 222 during the electrochemical reaction process to ensure that the fuel cell stack 222 works stably within a suitable temperature range. The hydrogen heat exchanger 253, the PTC warm air 254 and the radiator 255 can work in conjunction with the fuel cell stack 222 and the intercooler 223, so that the fuel cell cooling test system 1 can simulate the actual working conditions of the fuel cell. The cooling medium can exchange heat with the fuel cell stack 222, the intercooler 223, the hydrogen heat exchanger 253, the PTC warm air 254 and the radiator 255, thereby simulating the cooling effect of the fuel cell cooling system.

[0048] In some embodiments of the present invention, the first proportional regulating valve 232 and the second proportional regulating valve 252 have the same structure.

[0049] The first proportional regulating valve 232 and the second proportional regulating valve 252 of the same structure provide the same control principle, which is conducive to the unified control of different sub-flow paths by the control device 40, and the first proportional regulating valve 232 and the second proportional regulating valve 252 of the same structure are conducive to standardized production, reducing the complexity in the design and manufacturing process, improving production efficiency and reducing costs.

[0050] In some embodiments of the present invention, the control device 40 may include: a controller 41 and a cloud 42, the controller 41 and the cloud 42 are communicatively connected, and the controller 41 is communicatively connected to the first proportional control valve 232, the electronically controlled drive pump 21, the second proportional control valve 252, multiple flow detection components 30, multiple pressure detection components and multiple viscosity detection components.

[0051] The controller 41 can control the opening of the first proportional regulating valve 232 and the second proportional regulating valve 252, the controller 41 can drive the electric control driving pump 21 to work, and the controller 41 can receive the detection information of multiple flow detection components 30, the detection information of multiple pressure detection components, and the detection information of multiple viscosity detection components. The controller 41 is connected to the cloud 42 for communication, and the controller 41 can send the received multiple detection information to the cloud 42, and the cloud 42 can process the collected data to form a database and send the analysis signal to the controller 41.

[0052] In the embodiment of the present application, when the fuel cell cooling test system 1 is tested, the openings of the first proportional regulating valve 232 and the second proportional regulating valve 252 are all adjusted to the maximum, the fuel cell cooling test system 1 is powered on, and each component in the fuel cell cooling test system 1 works. The controller 41 drives the electronically controlled driving pump 21 to work, and the cooling medium fills the entire cooling flow path 20. According to the theoretical value of the cooling medium flow rate in each sub-flow path of the fuel cell working in the most suitable temperature range, the controller 41 controls the openings of the first proportional regulating valve 232 and the plurality of second proportional regulating valves 252. The controller 41 receives the detection information of the flow detection element 30, the detection information of the pressure detection element, and the detection information of the viscosity detection element on each sub-flow path. The controller 41 sends the received multiple detection information to the cloud 42. The cloud 42 processes the collected data to form a database and sends the analysis signal to the controller 41. The controller 41 continues to adjust the opening of the first proportional control valve 232 and the plurality of second proportional control valves 252 according to the analysis signal. Through multiple control adjustments and feedback corrections, the optimal control logic of the cooling system can be obtained, thereby ensuring that the fuel cell can operate within a suitable temperature range in actual operation.

[0053] Other structures and operations of the fuel cell cooling test system 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fuel cell cooling test system, characterized in that: include: A storage box (10), wherein the storage box (10) is used to store a cooling medium; A cooling flow path (20), the cooling flow path (20) having a flow path inlet and a flow path outlet, the flow path inlet and the flow path outlet both being in communication with the storage box (10), wherein the cooling flow path (20) comprises an electrically controlled drive pump (21), a first flow path unit (22) and a second flow path unit (23), the electrically controlled drive pump (21), the first flow path unit (22) and the second flow path unit (23) being connected in series, the first flow path unit (22) comprising two first sub-flow paths (221) connected in parallel, one of the first sub-flow paths (221) being provided with a fuel cell stack (222), the other of the first sub-flow paths (221) being provided with an intercooler (223), the second flow path unit (23) comprising a second sub-flow path (231), the second sub-flow path (231) being provided with a first proportional regulating valve (232); a plurality of flow detection elements (30), wherein the plurality of flow detection elements (30) are respectively arranged in the second sub-flow path (231) and each of the first sub-flow paths (221); a plurality of pressure detection components, wherein the plurality of pressure detection components are respectively arranged in the second sub-flow path (231) and each of the first sub-flow paths (221); a plurality of viscosity detection elements, wherein the plurality of viscosity detection elements are respectively arranged in the second sub-flow path (231) and each of the first sub-flow paths (221); A control device (40), wherein the control device (40) is communicatively connected with the first proportional control valve (232), the electrically controlled drive pump (21), a plurality of the flow detection elements (30), a plurality of the pressure detection elements, and a plurality of the viscosity detection elements; the control device (40) is configured to control the opening of the first proportional control valve (232), control the operation of the electrically controlled drive pump (21), and receive detection information of the flow detection element (30), detection information of the pressure detection element, and detection information of the viscosity detection element.

2. The fuel cell cooling test system according to claim 1, characterized in that: The first flow path unit (22) is connected in series between the electrically controlled drive pump (21) and the second flow path unit (23), and the electrically controlled drive pump (21) is located between the flow path inlet and the first flow path unit (22). The cooling flow path (20) also has a deionization device (24), the deionization device (24) and the electrically controlled drive pump (21) are connected in series, and the deionization device (24) is located between the flow path inlet and the first flow path unit (22).

3. The fuel cell cooling test system according to claim 1, characterized in that: The storage box (10) has a gas exhaust structure.

4. The fuel cell cooling test system according to claim 3, characterized in that: The gas exhaust structure is constructed as an exhaust port, the exhaust port is provided with an opening and closing valve, and the control device (40) is communicatively connected with the opening and closing valve to control the opening and closing valve to open or close the exhaust port.

5. The fuel cell cooling test system according to claim 1, characterized in that: The storage tank (10) is configured as an expansion tank.

6. The fuel cell cooling test system according to claim 1, characterized in that: The cooling flow path (20) further comprises a third flow path unit (25), wherein the third flow path unit (25) and the first flow path unit (22) are connected in series, and the third flow path unit (25) and the second flow path unit (23) are connected in parallel, and the third flow path unit (25) comprises a third sub-flow path (251), wherein the third sub-flow path (251) is provided with a second proportional control valve (252) and a functional component, wherein the second proportional control valve (252) and the functional component are connected in series, and the third sub-flow path (251) is provided with the flow detection component (30), the pressure detection component and the viscosity detection component, and the control device (40) is connected in communication with the second proportional control valve (252) to control the opening of the second proportional control valve (252).

7. The fuel cell cooling test system according to claim 6, characterized in that: There are a plurality of the third sub-flow paths (251), and the plurality of the third sub-flow paths (251) are connected in parallel.

8. The fuel cell cooling test system according to claim 7, characterized in that: There are three third sub-flow paths (251), and the functional components on the three third sub-flow paths (251) are respectively a hydrogen heat exchanger (253), a PTC heater (254) and a radiator (255).

9. The fuel cell cooling test system according to claim 6, characterized in that: The first proportional regulating valve (232) and the second proportional regulating valve (252) have the same structure.

10. The fuel cell cooling test system according to any one of claims 6 to 9, characterized in that: The control device (40) comprises: a controller (41) and a cloud (42), wherein the controller (41) and the cloud (42) are communicatively connected, and the controller (41) is communicatively connected with the first proportional control valve (232), the electrically controlled drive pump (21), the second proportional control valve (252), a plurality of flow detection elements (30), a plurality of pressure detection elements, and a plurality of viscosity detection elements.

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