CN115727800B - Fuel cell compression measuring tool and fuel cell compression detecting method thereof - Google Patents
Fuel cell compression measuring tool and fuel cell compression detecting method thereof Download PDFInfo
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- CN115727800B CN115727800B CN202310035582.6A CN202310035582A CN115727800B CN 115727800 B CN115727800 B CN 115727800B CN 202310035582 A CN202310035582 A CN 202310035582A CN 115727800 B CN115727800 B CN 115727800B
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/30—Hydrogen technology
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Abstract
The invention provides a fuel cell compression amount measuring tool and a fuel cell compression amount detecting method thereof, which relate to the technical field of fuel cells, and the technical field of fuel cells is characterized in that a rotating bracket is driven to rotate along the axis direction of the rotating bracket, the rotating bracket is driven to rotate along the axis direction of the rotating bracket, a hexagonal nut in a nut hole of the rotating sleeve is screwed on a bolt, the hexagonal nut contacts with a fuel cell group to generate pretightening force on the fuel cell group, the fuel cell group is compressed by pretightening force, a displacement detecting member is utilized to detect the compression displacement of the fuel cell group, real-time feedback on the fuel cell group during the assembly process is realized, real-time assembly pretightening amount is continuously output, the compression degree during the assembly process can be freely controlled, and the technical problems that the compression pretightening degree of the battery assembly cannot be determined during the assembly clamping process of the fuel cell and the optimal assembly state of the battery cannot be determined easily in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell compression measuring tool and a fuel cell compression detecting method thereof.
Background
Proton exchange membrane fuel cells are praised as one of the most potential clean power devices in the 21 st century, and are expected to replace the internal combustion engines widely applied at present, and become the next generation green engines in the field of transportation. The power density is high, the discharged product is pure water, and the current technology is widely focused.
The fuel cell is composed of a membrane electrode (proton exchange membrane, a catalytic layer and a gas diffusion layer), a flow field plate, a current collecting plate, a gasket and an end plate, and bolts, nuts and the like are needed for assembling and clamping the cell due to the characteristic of independent division among the components, so that the components are assembled into a body to keep good sealing performance, and the important reason is to reduce contact resistance among the components of the cell. Because the membrane electrode and the flow field plate are independent, the contact resistance between the membrane electrode and the flow field plate can also change along with the assembly pretightening force, and generally, the contact resistance presents a process of firstly rapidly decreasing and then gradually stabilizing along with the increase of the assembly pretightening force.
However, in the conventional assembly process, the magnitude of the pre-tightening force cannot be directly selected to be a proper value, and it is difficult to determine the compression degree of the membrane electrode under the assembly condition, and the conventional means is to use an empirical value, such as a torque wrench to screw a bolt for fastening to an empirical value, and then perform a test of the performance of the battery, where the performance of the battery is basically difficult to determine to be in an optimal state.
Disclosure of Invention
The invention aims to provide a fuel cell compression measuring tool and a fuel cell compression detecting method thereof, which are used for solving the technical problems that the compression pre-tightening degree of a cell assembly cannot be determined in the process of clamping the fuel cell assembly and the optimal state of the cell assembly cannot be determined easily in the prior art.
The invention provides a fuel cell compression amount measuring tool, comprising: the device comprises a fixed bracket, a rotating sleeve and a displacement detection component;
the rotating support is arranged at the bottom of the fixed support and is configured to be capable of rotating relative to the fixed support along the axis direction of the rotating support;
the rotating sleeve is rotationally connected with the fixed support, a nut hole is formed in the bottom of the rotating sleeve, and a hexagonal nut is arranged in the nut hole;
the rotation of the rotating bracket drives the rotating sleeve to move along the axis of the rotating sleeve so that the hexagonal nut in the nut hole is screwed on a bolt of the fuel cell stack;
the displacement detection member is connected with the fixed bracket and is used for detecting the compression displacement of the fuel cell stack.
Further, the method comprises the steps of,
the rotating support is arranged in an annular shape, inner teeth are arranged on the inner annular wall of the rotating support, outer teeth are arranged on the outer wall of the rotating sleeve, and the inner teeth are connected with the outer teeth in a meshed mode, so that the rotating sleeve can rotate along with the rotating support.
Further, the method comprises the steps of,
the fixed support is provided with a rotating bearing, the rotating bearing is sleeved on the rotating sleeve, and the top of the rotating sleeve penetrates through the rotating bearing.
Further, the method comprises the steps of,
the displacement detection component comprises a connecting cylinder and a displacement sensor;
the connecting cylinder is connected with the fixed support, the connecting cylinder is provided with a mounting hole, and the displacement sensor is arranged in the mounting hole.
Further, the method comprises the steps of,
the displacement detection component also comprises a digital display module;
the digital display module is arranged at the top of the connecting cylinder and is electrically connected with the displacement sensor.
Further, the method comprises the steps of,
the fixed bolster is provided with the screw hole, the outer wall of connecting cylinder is provided with the external screw thread, the external screw thread with screw hole threaded connection.
Further, the method comprises the steps of,
the outer wall of the rotating bracket is provided with a handle.
The invention provides a fuel cell compression amount detection method based on the fuel cell compression amount measurement tool, which comprises the following steps:
arranging fuel cell groups to be assembled in sequence, wherein the fuel cell groups are symmetrically arranged in a sandwich mode according to membrane electrodes, flow field plates, current collecting plates and end plates, and holes reserved at the upper end plate and the lower end plate are aligned;
the bolt fasteners are placed up through one end plate, and the fuel cell stacks are placed one by one in the order of arrangement until all placement is completed.
Further, the method also comprises the following steps:
screwing the nuts until the nuts contact the end plate, and drawing marking lines at all holes of the end plate and at one corner of all the nuts for marking and positioning so that a plurality of nuts are in the same state;
and (5) connecting an external electronic resistance analyzer into the assembled fuel cell stack, and recording the resistivity reading at the moment.
Further, the method also comprises the following steps:
the rotary sleeve is sleeved on the nut, the reading of the displacement sensor is reset to zero, the rotary sleeve is driven to rotate so that the nut is screwed, real-time resistivity reading and displacement reading are recorded, the change of real-time resistivity is analyzed, and the assembly is stopped when the change rate shows a gentle trend.
According to the fuel cell compression measuring tool provided by the invention, the rotating bracket is driven to rotate along the axis direction of the rotating bracket, the rotating sleeve is driven to rotate along the axis direction of the rotating bracket, so that the hexagon nut in the nut hole of the rotating sleeve is screwed on the bolt, the hexagon nut is in contact with the fuel cell group to generate pretightening force on the fuel cell group, the fuel cell group is compressed by the pretightening force, the displacement detecting member is utilized to detect the compression displacement of the fuel cell group, real-time feedback on the fuel cell group in the assembly process is realized, the real-time assembly pretightening amount is continuously output, the compression degree in the assembly process can be freely controlled, and the technical problems that the compression pretightening degree of the assembled battery cannot be determined in the assembly clamping process of the fuel cell in the prior art, and the optimal assembly state of the battery cannot be determined are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a fuel cell compression measurement tool according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the fuel cell compression measurement tool according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fuel cell stack in a fuel cell compression measurement tool according to an embodiment of the present invention.
Icon: 10-end plates; 20-collecting plate; 30-a flow field plate; 40-membrane electrode; 50-bolts; 100-fixing a bracket; 110-a rotating bearing; 200-rotating a bracket; 210-internal teeth; 220-handle; 300-rotating the sleeve; 310-nut holes; 320-external teeth; 400-displacement detecting means; 410-connecting a cylinder; 420-a displacement sensor; 430-a digital display module.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, 2 and 3, the fuel cell compression measurement tool provided in this embodiment includes: a fixed bracket 100, a rotating bracket 200, a rotating sleeve 300, and a displacement detecting member 400; the rotating bracket 200 is provided at the bottom of the fixed bracket 100, and the rotating bracket 200 is configured to be rotatable with respect to the fixed bracket 100 in the own axis direction; the rotating sleeve 300 is rotationally connected with the fixed bracket 100, a nut hole 310 is formed in the bottom of the rotating sleeve 300, and a hexagonal nut is arranged in the nut hole 310; rotation of the rotating bracket 200 drives the rotating sleeve 300 to move along the axis thereof, so that the hexagonal nut in the nut hole 310 is screwed onto the bolt 50 of the fuel cell stack; the displacement detecting member 400 is connected to the stationary bracket 100, and the displacement detecting member 400 is used to detect the amount of compressive displacement of the fuel cell stack.
Specifically, the bottom of the fixed support 100 is concavely formed with a clamping groove, the top of the rotating support 200 extends upwards to form a clamping protrusion, the clamping protrusion extends into the clamping groove, and the rotating support 200 can rotate relative to the fixed support 100 due to the annular structure of the fixed support 100 and the rotating support 200, so that the rotating support 200 rotates along the axis of the rotating support 200, and the rotating sleeve 300 is driven to rotate along the axis of the rotating support, so that a hexagonal nut in the nut hole 310 rotates.
According to the fuel cell compression measuring tool provided by the embodiment, the rotating bracket 200 is driven to rotate along the axis direction of the rotating bracket 200, the rotating sleeve 300 is driven to rotate along the axis direction of the rotating bracket 200, the hexagonal nut positioned in the nut hole 310 of the rotating sleeve 300 is screwed on the bolt 50, the hexagonal nut is in contact with the fuel cell stack to generate pretightening force on the fuel cell stack, the fuel cell stack is compressed by the pretightening force, the displacement detecting member 400 is utilized to detect the compression displacement of the fuel cell stack, real-time feedback on the fuel cell stack assembly process is realized, real-time assembly pretightening quantity is continuously output, the compression degree in the assembly process can be freely controlled, and the technical problem that the compression pretightening degree of the battery assembly cannot be determined in the fuel cell assembly clamping process in the prior art and the optimal assembly state of the battery is difficult to determine is solved.
Further, in the fuel cell compression measurement tool according to the present embodiment, in order to rotate the rotating sleeve 300 driven by the rotation of the rotating bracket 200, the rotating bracket 200 is provided in a ring shape, the inner circumferential wall of the rotating bracket 200 is provided with the internal teeth 210, the outer wall of the rotating sleeve 300 is provided with the external teeth 320, and the internal teeth 210 are engaged with the external teeth 320, so that the rotating sleeve 300 can rotate together with the rotating bracket 200.
It should be noted that the rotation sleeve 300 may be provided in plural, for example, four or six, and the number of the rotation sleeves 300 is set correspondingly according to the specific number of the fuel cell stack bolts 50.
Further, the fixed bracket 100 is provided with a rotating bearing 110, the rotating bearing 110 is sleeved on the rotating sleeve 300, and the top of the rotating sleeve 300 passes through the rotating bearing 110.
Specifically, a bearing hole is formed in the fixed bracket 100, a rolling bearing 110 is installed in the bearing hole, the rolling sleeve 300 passes through the rolling bearing 110, the rolling bearing 110 limits the lateral displacement of the rolling sleeve 300, and the rolling sleeve 300 can move along the axis thereof more smoothly.
Further, the displacement detecting member 400 includes a connecting cylinder 410 and a displacement sensor 420; the connecting cylinder 410 is connected with the fixed bracket 100, the connecting cylinder 410 is provided with a mounting hole, and the displacement sensor 420 is arranged in the mounting hole; the displacement detection member 400 further includes a digital display module 430; the digital display module 430 is disposed at the top of the connecting tube 410, and the digital display module 430 is electrically connected to the displacement sensor 420.
Specifically, the middle part of the connecting cylinder 410 is provided with a mounting hole in a penetrating manner, the displacement sensor 420 is disposed in the mounting hole, and the measuring end of the displacement sensor 420 extends out of the mounting hole, and the displacement sensor 420 may be configured as a radial sensor to detect the displacement of the top end plate 10 of the fuel cell in real time.
The connection line of the displacement sensor 420 passes through the mounting hole and is connected with the digital display module 430, processes the signal from the displacement sensor 420 and displays the real-time displacement.
In an alternative embodiment, the fixing bracket 100 is provided with a screw hole, and the outer wall of the connection cylinder 410 is provided with external screw threads, which are screw-coupled with the screw hole.
Specifically, a threaded hole is formed in the middle of the fixing bracket 100, the connection cylinder 410 is screwed into the threaded hole by threads, and the height position of the connection cylinder 410 can be freely adjusted by screwing the connection cylinder 410.
Further, the outer wall of the rotating bracket 200 is provided with a handle 220.
Specifically, in order to facilitate the rotation of the rotating bracket 200, a handle 220 is connected to the outer wall of the rotating bracket 200, and the user rotates the rotating bracket 200 through the handle 220.
In addition, the rotating bracket 200 may be driven electrically, for example, a driving end of the driving motor is sleeved with a rotating gear, a rack is arranged on the outer wall of the rotating bracket 200, the rotating gear is meshed with the rack, and the rotating bracket 200 can be driven to rotate by driving of the driving motor.
The fuel cell compression measurement tool provided in this embodiment can realize quantitative measurement of compression and resistivity change caused by continuous clamping in the process of assembling the battery, and the compression deformation at this time is the compression deformation of the membrane electrode 40 under the action of the pretightening force. In the conventional assembly process, the pretightening force and the real-time compression amount are difficult to obtain, if excessive compression pretightening possibly causes excessive deformation of an internal gas diffusion layer and causes internal fracture to form burrs and the like, on the one hand, the carbon fiber of the gas diffusion layer protrudes into a runner to cause increase of gas flow resistance and difficult liquid water discharge, on the other hand, the broken carbon fiber possibly causes the proton exchange membrane to be punctured, battery faults and even safety accidents are caused, meanwhile, the internal resistance of the battery cannot be reduced, and the resistivity is increased due to fracture of the carbon fiber, and meanwhile, the aperture and the porosity of the gas diffusion layer are greatly reduced, so that the heat and mass transfer performance of the battery can be influenced. In addition, excessive pre-tightening may cause damage to stability of the catalytic layer, durability of the battery, and the like. If the compression pre-tightening amount is insufficient, the contact resistance of the battery is large, and the performance of the battery is degraded, so that it is difficult to meet the optimal design objective. Therefore, the fuel cell compression amount measuring tool provided by the embodiment can assist in establishing the numerical association relation between the battery assembly compression amount and the self resistance change of the battery, and can accurately assist in positioning the battery assembly pre-tightening degree according to the real-time change of the resistivity, so that the fuel cell compression amount measuring tool has excellent engineering value.
Moreover, the variability of the proficiency of the testers in assembling the battery, the tool use, etc. at the present time often results in inconsistent performance of the same product of the membrane electrode 40 in different testers. The fuel cell compression measuring tool provided by the embodiment can effectively weaken the difference of the cell performance in the test process caused by the difference of the skills of operators.
The fuel cell compression amount detection method based on the fuel cell compression amount measurement tool provided in the embodiment includes the following steps: the fuel cell groups to be assembled are arranged in sequence, and the membrane electrode 40, the flow field plate 30, the current collecting plate 20 and the end plates 10 are arranged in a sandwich symmetrical mode, and holes reserved at the upper end plate 10 and the lower end plate 10 are aligned; placing the bolts 50 fasteners through the end plate 10 upward and placing the fuel cell stacks one by one in the order of arrangement to complete the placement; screwing the nuts until the nuts contact the end plate 10, and drawing marking lines at all holes of the end plate 10 and at one corner of all the nuts for marking and positioning so that a plurality of nuts are in the same state; connecting an external electronic resistance analyzer into the assembled fuel cell stack, and recording the resistivity reading at the moment; the method also comprises the following steps: the rotating sleeve 300 is sleeved on the nut, the reading of the displacement sensor 420 is reset to zero, the rotating sleeve 300 is driven to rotate so that the nut is screwed, real-time resistivity reading and displacement reading are recorded, the change of real-time resistivity is analyzed, and the assembly is stopped when the change rate shows a gentle trend.
Specifically, the first step: the fuel cell assembly to be assembled is first arranged in the order of the membrane electrode 40, the flow field plate 30, the collector plate 20, and the end plates 10 in a sandwich symmetrical arrangement, with the holes reserved at the upper and lower end plates 10 being aligned. In this embodiment there are four holes in total. The function of these holes is then that of the fastener module for placement of the bolts 50. The size of the hole is not strictly limited, but needs to be matched with the size of the threads of the bolt 50, so that the two design needs to be matched and coupled, in the embodiment, the diameter of the hole is 15 mm as an example, the internal threads are required to be arranged in the hole by adopting precision machining, the pitch of the threads is 5 mu m, the depth of the threads is not less than 5 mu m, and meanwhile, the threads in the fastening module are consistent with the pitch of the threads and the hole so as to be matched in the fastening process.
And a second step of: four bolts 50 are fastened and placed up through one end plate 10, and the fuel cell assemblies mentioned in the first step are put one by one in the order of arrangement to complete the placement. Screw in nut to contact end plate 10 after all putting into, draw the marking line at all holes of end plate 10 and all hexagonal nut a bight and mark the location this moment for four hexagonal nuts are in same state, and the anchor clamps of this application design of convenient to use are placed as shown in fig. 1.
And a third step of: an external electronic resistance analyzer was connected to the assembled fuel cell and the resistivity reading at this time was recorded.
Fourth step: the rotating sleeve 300 is connected with the positioned hexagonal nut, the reading of the displacement sensor 420 is reset to zero, the assembly is driven, the real-time resistivity reading and the displacement reading are recorded, the change of the real-time resistivity is analyzed, and the assembly is stopped when the change rate shows a gentle trend.
The method adopted in the assembly process of the single battery at the present stage is to put the electrode plates of the battery, the membrane electrode 40 and the like one by one into the assembly process according to the positioning bolts 50 and then screw the electrode plates one by one. Therefore, firstly, each part of the battery is stressed unevenly due to the assembly sequence and the assembly force, the assembly compression degree is difficult to control accurately, and the parts and the initial positions of the battery parts are likely to deform too much due to the process of screwing one by one, so that the parts are slightly or seriously damaged, and the real performance of the battery is affected. In the method, a plurality of precise fastening modules can synchronously work simultaneously under the drive of the driving module in the assembly process, so that the balance of the assembly process is ensured. In addition, due to feedback of the displacement module in the assembly process, quantitative control of the tester on the assembly process can be effectively facilitated, consistency of assembly results can be very facilitated, and assembly variability caused by different personnel is changed.
In addition, the fuel cell has a problem of cold start due to winter. Due to the low temperature, the gas transmission channel is blocked due to the icing inside the battery, so that the battery cannot work normally. A typical strategy for cold start is to control the internal resistance (internal resistance) of the battery to regulate, since the internal resistance is closely related to the amount of heat generated during operation of the battery. According to the method, the relation between the assembled compression amount and the self resistance change of the battery can be effectively established, and the change of the resistance of the battery after the assembly is completed is mainly determined by the internal water content, so that the method can play a role in calibrating an initial value and predicting the water content for the change of the resistance in the working process of the battery. Second, since the conventional assembly means adopts a method of tightening the bolts 50 one by one, when the assembly force of the battery is insufficient or exceeds, secondary adjustment cannot be performed, but in the method of the application, the fastening modules can be synchronously performed, and the compression and rebound of the battery are simultaneously performed at each part, and the amplitude is consistent, so that the influence of secondary adjustment on the performance of the battery can be greatly weakened, and the method plays a very effective role in repairing the poor assembly of the battery found in the test process.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A fuel cell compression amount detection method of a fuel cell compression amount measurement tool, characterized in that the fuel cell compression amount measurement tool includes: the device comprises a fixed bracket, a rotating sleeve and a displacement detection component;
the rotating support is arranged at the bottom of the fixed support and is configured to be capable of rotating relative to the fixed support along the axis direction of the rotating support;
the rotating sleeve is rotationally connected with the fixed support, a nut hole is formed in the bottom of the rotating sleeve, and a hexagonal nut is arranged in the nut hole;
the rotation of the rotating bracket drives the rotating sleeve to move along the axis of the rotating sleeve so that the hexagonal nut in the nut hole is screwed on a bolt of the fuel cell stack;
the displacement detection component is connected with the fixed bracket and is used for detecting the compression displacement of the fuel cell stack;
the displacement detection component comprises a connecting cylinder and a displacement sensor;
the connecting cylinder is connected with the fixed support, the connecting cylinder is provided with a mounting hole, and the displacement sensor is arranged in the mounting hole;
the detection method comprises the following steps:
arranging fuel cell groups to be assembled in sequence, wherein the fuel cell groups are symmetrically arranged in a sandwich mode according to membrane electrodes, flow field plates, current collecting plates and end plates, and holes reserved at the upper end plate and the lower end plate are aligned;
placing the bolt fasteners upwards through one end plate, and placing the fuel cell stacks one by one according to the arrangement sequence until all the fuel cell stacks are placed;
screwing the nuts until the nuts contact the end plate, and drawing marking lines at all holes of the end plate and at one corner of all the nuts for marking and positioning so that a plurality of nuts are in the same state;
connecting an external electronic resistance analyzer into the assembled fuel cell stack, and recording the resistivity reading at the moment;
the rotary sleeve is sleeved on the nut, the reading of the displacement sensor is reset to zero, the rotary sleeve is driven to rotate so that the nut is screwed, real-time resistivity reading and displacement reading are recorded, the change of real-time resistivity is analyzed, and the assembly is stopped when the change rate shows a gentle trend.
2. The method for detecting the compression amount of the fuel cell compression amount measuring tool according to claim 1, wherein the rotating bracket is provided in a ring shape, an inner circumferential wall of the rotating bracket is provided with inner teeth, an outer wall of the rotating sleeve is provided with outer teeth, and the inner teeth are engaged with the outer teeth so that the rotating sleeve can rotate together with the rotating bracket.
3. The method for detecting the compression amount of the fuel cell compression amount measuring tool according to claim 2, wherein the fixed bracket is provided with a rotary bearing, the rotary bearing is sleeved on the rotary sleeve, and the top of the rotary sleeve passes through the rotary bearing.
4. The method for detecting the compression amount of the fuel cell compression amount measuring tool according to claim 1, wherein the displacement detecting means further comprises a digital display module;
the digital display module is arranged at the top of the connecting cylinder and is electrically connected with the displacement sensor.
5. The method for detecting the compression amount of the fuel cell according to claim 4, wherein the fixing bracket is provided with a screw hole, and the outer wall of the connecting cylinder is provided with an external screw thread which is screw-coupled with the screw hole.
6. The method for detecting the compression amount of the fuel cell compression amount measuring tool according to claim 1, wherein the outer wall of the rotating bracket is provided with a handle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310035582.6A CN115727800B (en) | 2023-01-10 | 2023-01-10 | Fuel cell compression measuring tool and fuel cell compression detecting method thereof |
| JP2023211406A JP7471711B1 (en) | 2023-01-10 | 2023-12-14 | Tool for measuring fuel cell compression amount and method for detecting fuel cell compression amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310035582.6A CN115727800B (en) | 2023-01-10 | 2023-01-10 | Fuel cell compression measuring tool and fuel cell compression detecting method thereof |
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| CN115727800A CN115727800A (en) | 2023-03-03 |
| CN115727800B true CN115727800B (en) | 2023-05-16 |
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| CN202310035582.6A Active CN115727800B (en) | 2023-01-10 | 2023-01-10 | Fuel cell compression measuring tool and fuel cell compression detecting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2383892A1 (en) * | 2000-07-19 | 2002-01-31 | Ballard Power Systems Inc. | Method and apparatus for measuring displacement of a fuel cell stack during assembly |
| CN101388464B (en) * | 2008-10-09 | 2010-11-10 | 大连理工大学 | Pressure and displacement measuring and controlling apparatus |
| CN101969131B (en) * | 2010-09-14 | 2012-09-19 | 江苏新源动力有限公司 | Single-cell assembly and test tool of fuel cell |
| JP5664477B2 (en) | 2011-06-28 | 2015-02-04 | トヨタ自動車株式会社 | Fuel cell and fuel cell manufacturing method |
| JP2016110863A (en) | 2014-12-08 | 2016-06-20 | トヨタ自動車株式会社 | Fastening apparatus and fastening method for fuel cell stack |
| DE102017206729B4 (en) | 2016-04-29 | 2022-11-24 | Ford Global Technologies, Llc | Method for operating a fuel cell system |
| CN106926150A (en) * | 2017-04-12 | 2017-07-07 | 武汉理工大学 | Loading and fixing device for fuel cell test |
| CN209140744U (en) * | 2018-10-26 | 2019-07-23 | 东泰高科装备科技有限公司 | A kind of clamp device |
| CN110429298B (en) * | 2019-08-05 | 2020-10-09 | 上海骥翀氢能科技有限公司 | Detection device and method for proton exchange membrane fuel cell |
| CN211234222U (en) * | 2019-12-20 | 2020-08-11 | 西安东方康普斯制冷工程有限公司 | Height difference measuring device for stator and rotor of compressor motor |
| CN114361551A (en) * | 2021-12-30 | 2022-04-15 | 贵州梅岭电源有限公司 | Fuel cell stack single adjustable torque synchronous fine fastening device |
| CN216882635U (en) * | 2022-03-14 | 2022-07-05 | 山东国创燃料电池技术创新中心有限公司 | Multi-nut synchronous screwing device |
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