CN107681178A - The detecting system of detection fuel cell pile internal temperature field change and preparation in real time - Google Patents
The detecting system of detection fuel cell pile internal temperature field change and preparation in real time Download PDFInfo
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- CN107681178A CN107681178A CN201710736521.7A CN201710736521A CN107681178A CN 107681178 A CN107681178 A CN 107681178A CN 201710736521 A CN201710736521 A CN 201710736521A CN 107681178 A CN107681178 A CN 107681178A
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- fuel cell
- temperature sensor
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- silver thread
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The present invention relates to the detecting system of real-time detection fuel cell pile internal temperature field change and preparation, system is independently of fuel cell pile, it is the temperature field detection system added on fuel cell pile, including the film temperature sensor module being embedded in fuel battery metal polar plate flow passage, the nano-silver thread circuit being laid in film temperature sensor module, be coated on the hermetically sealed layer for simultaneously film temperature sensor module and nano-silver thread circuit being packaged in film temperature sensor module, the data acquisition module electrically connected successively with nano-silver thread circuit, data processor.Compared with prior art; overall structure of the present invention is simple, compact; it can be achieved to detect fuel cell pile temperature field in real time; so as to avoid pile from burning, the generation for the accident such as explode; not only there is protective effect in the experiment such as performance test in fuel cell pile, and the scientific research experiment relevant with temperature to fuel cell pile has important practical significance.
Description
Technical field
The invention belongs to field of fuel cell technology, is related to a kind of internal temperature field change of detection fuel cell pile in real time
Detecting system and preparation.
Background technology
Chemical energy is converted into electric energy by fuel cell by electrochemical principle, and its theoretic thermoelectric conversion efficiency is reachable
85%~90%.In addition, fuel cell is generated electricity by electrochemical principle, when the fuel of reaction is hydrogen, its reaction product is
Water, it is a kind of clean energy resource.Therefore, fuel cell because its have energy conversion efficiency height, power density height, safety, environment friend
Good, high reliability is paid attention to by more and more research institutions and government, particularly in world today's energy and environmental protection
In the case of cry day height, it is that to alleviate world today's energy increasingly in short supply with one kind of environmental pollution that fuel cell, which is commonly recognized,
Technological means.Particularly in recent years, Proton Exchange Membrane Fuel Cells (PEMFC) with its energy conversion efficiency height, quieter operation,
Reliability is high, the characteristic such as environment-friendly, is applied to the fields such as vehicular energy, diving outfit by increasing research worker.
Obviously, Proton Exchange Membrane Fuel Cells has huge potentiality in terms of removable power source.Fuel cell is former by electrochemistry
Chemical energy is converted into electric energy by reason, and its theoretic thermoelectric conversion efficiency is up to 85%~90%.
In general, a proton exchange film fuel cell electric piling mainly includes：Bipolar plates (BPP), PEM
(PEM), the module such as gas diffusion layers (GDL), catalyst layer, seal assembly.In Proton Exchange Membrane Fuel Cells, hydrogen conduct
Fuel enters the anode-side of metal double polar plates by runner, and air then enters cathode side as oxidant.In anode-side, enter
The reaction of line (1)：H2→2H++2e-(1)；Following react then is carried out in cathode side：1/2O2+2H++2e-→H2O(2)；Total
Reaction equation is：H2+1/2O2→H2O(3)。
Understand that formula (3) reaction is an exothermic reaction according to chemical thermodynamics, therefore be high temperature inside fuel cell pile
Environment.Meanwhile in order to ensure the reaction efficiency of negative electrode and anode catalyst, proton exchange film fuel cell electric piling is typically maintained in
70~90 DEG C.Traditionally, graphite bi-polar plate extensively should due to its good corrosion resistance in the fields such as phosphoric acid fuel cell
With.But because the preparation technology flow of graphite bi-polar plate is complicated, cost is high, time-consuming, nowadays gradually by metal double polar plates
Substituted.Although metal double polar plates improve in terms of reliability, the membrane electrode assembly of the composition such as gas diffusion layers
(MEA) under conditions of fuel cell high-temperature (70~90 DEG C), high humility, because localized hyperthermia easily causes film inside pile
Component damages, and then causes internal short-circuit of battery, causes hydrogen and oxygen to mix, so as to cause serious pile to burn, or even leads
Send a telegraph heap explosion accident etc..But at present in terms of fuel cell pile temperature detection, rarely has its detection of patent, document report
Principle and its detecting system composition etc..
For fuel cell pile, palpus Tian Huijie points out that one kind can in the patent of Application No. 201010559432.8
Make the temperature distribution homogenization of whole region in electric surface by simple structure, and the fuel that power generation performance improves can be realized
Battery.It is real to fuel cell pile inside but this method can only qualitatively improve the distribution of fuel cell pile internal temperature
Shi Wendu does not play supervisory function bit.
Good position in Yamamoto et al. proposes to suppress fuel using insulation in Application No. 200880112181.X patent
The thermal diffusion of battery, the fuel battery performance caused by temperature reduces is avoided to reduce.
Ishikawa show tree et al. is proposed in the patent of Application No. 201280054113.9 in fuel cell unit stacking side
Upward middle body temperature cooling, so as to make temperature equalization in the stacking direction and increase the method for generating efficiency.
This rising tone of ridge et al. is pointed out in the patent of Application No. 201510781596.8, is detected using temperature detecting unit
The temperature of cooling agent goes to calculate temperature correction value.
But above-mentioned many patents can only improve the Temperature Distribution of fuel cell pile to a certain extent, or only
Fuel cell pile external temperature can be detected, the situation of change of fuel cell pile internal temperature can not be detected in real time, this
The problems such as just can not fundamentally avoiding fuel cell pile short circuit of polar, burning or even explode.
The content of the invention
The present invention is to solve the problems, such as to lack the real-time detection technique means of temperature in existing fuel cell pile, it is proposed that one
Kind detecting system that detection fuel cell pile internal temperature field changes in real time and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions：
The detecting system of detection fuel cell pile internal temperature field change in real time, the system is independently of fuel cell electricity
Heap, it is the temperature field detection system added on fuel cell pile, including is embedded in fuel battery metal polar plate flow passage
Film temperature sensor module, the nano-silver thread circuit being laid in film temperature sensor module, it is coated on film temperature biography
In sensor module simultaneously film temperature sensor module is packaged with nano-silver thread circuit hermetically sealed layer, successively with receiving
Data acquisition module, the data processor of rice silver wire circuit electrical connection.
Described film temperature sensor module includes insulation film substrate, the heat being arranged on insulation film substrate surface
Quick material dislodger and the heat-sensitive material layer being laid in thermo-sensitive material dislodger.
The thickness of described insulation film substrate is 0.02-0.1mm.
Described insulation film substrate is organic polymer substrate or inorganic oxide film substrate.
Described organic polymer substrate includes PET base, PI substrates, PEI substrates, PTFE substrates, PMMA substrates, PDMS
One kind in substrate, PC substrates, PEN substrates or PES substrates；
Inorganic oxide in described inorganic oxide film substrate includes silica, silicon nitride, aluminum oxide or oxidation
One or more in magnesium.
The thickness of described heat-sensitive material layer is 200nm-10 μm.
The detection temperature scope of described heat-sensitive material layer is 5-200 DEG C, the thermo-sensitive material in heat-sensitive material layer include Cu,
One or more in Ti, Al, Ag, Pt or Ni.
Described insulation film substrate surface is provided with the nano-silver thread wire casing for being used for laying nano-silver thread circuit, the nanometer
The shape of silver wire wire casing includes one kind in straight-line groove or wavy line groove；
The shape of described thermo-sensitive material dislodger includes one kind in rectangular channel, circular trough or elliptical slot.
The width of described nano-silver thread circuit is 0.1-100 μm, length 5-500mm.
The preparation method of the detecting system of detection fuel cell pile internal temperature field change, this method specifically include in real time
Following steps：
Step (1)：The selection of insulation film substrate：Select insulation film substrate of the thickness for 0.02-0.1mm；
Step (2)：Microstructure is processed：By micro- milling, hot padding, ultraviolet nanometer impressing, Soft lithograph or photoetching exhausted
Thermo-sensitive material dislodger and nano-silver thread wire casing are processed on edge film substrate surface, obtained surface has the insulation of microstructure
Film substrate；
Step (3)：Deposit thermo-sensitive material：Pass through vacuum magnetic-control sputtering, radio-frequency sputtering, d.c. sputtering, vacuum evaporation, ion
Thermo-sensitive material is deposited in thermo-sensitive material dislodger by beam sputtering, microplating or ald, forms heat-sensitive material layer, is made
Film temperature sensor module；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat
In, the temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and use
Interpolation method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：Nano-silver thread silver paste solution is uniformly coated on by film temperature by blade coating equipment
In nano-silver thread wire casing on sensor assembly；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted,
The film temperature sensor module for being laid with nano-silver thread circuit is made；
Step (7)：It is hermetically sealed：By the obtained film temperature sensor module for being laid with nano-silver thread circuit be embedded into
In fuel battery metal polar plate flow passage, and hermetically sealed layer is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit in film temperature sensor module is passed through
Electric signal bus duct is aggregated to form pole plate electric signal bus, by the total congruence of pole plate electric signal of all pole plates in fuel cell pile
It is total to form pile electric signal bus, then by the analog signal transmission in pile electric signal bus to data acquisition module, by its turn
Change data signal into, then transmit into data processor, you can.
The concentration of nano-silver thread silver paste solution described in step (5) is 2mg/ml~100mg/ml.
In the structure design of reality, described nano-silver thread circuit and the thermo-sensitive material in film temperature sensor module
Layer is connected, and the electric signal of film temperature sensor module is transferred to the data acquisition module outside fuel cell pile.It is close
Envelope encapsulated layer mainly carries out heat-sensitive material layer and nano-silver thread circuit hermetically sealed simultaneously, on the one hand plays mutual with pole plate
The effect of insulation, on the other hand play the protective effect to film temperature sensor module and nano-silver thread.Hermetically sealed layer institute
The encapsulating material of use includes organic material (such as polyalkenes, polyesters) and inorganic material (such as transparent oxide film, transparent
Fluoride film etc.).
The analog signal that nano-silver thread circuit passes over is converted into data signal by described data acquisition module, and will
Data signal is delivered to data processor.Data processor further handles data signal, is allowed to visualize and is recorded.
Real time data is monitored simultaneously, alarm can be produced if there is exception.
The core component of detecting system of the present invention is film temperature sensor module, is fabricated to using thermo-sensitive material thin
Film, according to thermo-sensitive material resistance and the characteristic for varying with temperature and changing, it can be passed according to the thermally sensitive temperature for being attached to polar board surface
The change of the resistance of sensor is so as to drawing the temperature of polar board surface.
And in the preparation technology of reality, after thermo-sensitive material is prepared, resistance must be carried out to it -- temperature characterisitic
The demarcation of curve.Different thermo-sensitive materials, different deposition principles, different equipment, it is special for the thermo-sensitive material film of different-thickness
Property there is different characteristic, thus need carry out resistance-temperature characteristics curve demarcation.
Among film temperature sensor is is placed on isoperibol by the method typically demarcated, constant temperature ring is measured and recorded in
Its electric property under border.Then the temperature of the isoperibol is changed again.The electricity under different temperatures is can obtain by repeatedly measurement
Performance is learned, then carries out numerical interpolation, you can obtains continuous resistance-temperature characteristics curve.
Then, surface has been prepared for the blade coating of the film temperature sensor module progress nano-silver thread of heat-sensitive material layer.
Conducting wire of the nano-silver thread as electric signal transmission why is selected, is because its electric conductivity of nano-silver thread is especially excellent.One
As prepare the mode of nano-silver thread conducting wire and be, by the pre-configured silver paste solution with finite concentration nano-silver thread or
Emulsion is filled into by way of blade coating among pre-designed groove.Which efficiency high, uniformity are good, and what is obtained receives
Rice silver wire electric conductivity, uniformity are high, therefore are the most frequently used modes.
Then, the nano-silver thread of gained is toasted, is on the one hand to the solidification of nano-silver thread among quickening groove,
On the other hand it is to improve the electric conductivity of nano-silver thread circuit.Conventional method is the film for being coated with silver paste solution that will be obtained
It is placed into insulating box and is toasted.The temperature of insulating box is 80 DEG C~150 DEG C, and baking time is 5min~30min.By one
After certain temperature of fixing time baking, you can obtain nano-silver thread with good conductivity.The width of the nano-silver thread finally given
For 0.1 μm~100 μm, length is 5mm~500mm.
The film temperature sensor module for having thermo-sensitive material film and nano-silver thread in insulation film substrate is entered simultaneously again
Row is hermetically sealed.By sealing so that film temperature sensor module is not by fuel battery inside humidity, the environment shadow of corrosion
Ring, on the one hand improve the service life of film temperature sensor module, on the other hand also ensure that film temperature sensor mould
The electric insulation of block and fuel battery pole board.
In addition, the film temperature sensor module by encapsulation can bond together with pole plate, fuel electricity can be subjected to
The use environment of long term high temperature inside the pile of pond.
In general, for the present invention the packaged type that uses of film temperature sensor module for thin-film package.Its envelope
Dress mode includes single thin film packing and plural layers alternately encapsulate.Specifically, single thin film encapsulation includes organic polymer
Thin-film package and inorganic thin film encapsulation.Wherein, the material that organic polymer thin-film package uses includes：Parylene class, contain
Fluoropolymer, polyalkenes, polyesters etc..Inorganic thin film encapsulating material generally comprises：Transparent oxide film, transparent fluoride are thin
Film, silicon nitride film etc..And alternately encapsulation then includes plural layers：The films such as organic-organic, organic and inorganic, inorganic-inorganic
Alternately packaged type.In a word, after thin-film package, the performance of the film temperature sensor of above-mentioned gained is guaranteed, and makes
Also greatly improved with the life-span.
By above step, encapsulate film temperature sensor module sealing and be allowed to be embedded in metal polar plate runner.Will
The electric signal transmitted on single metal pole plate in some runners in the nano-silver thread of film temperature sensor module carries out assembly, obtains
To pole plate electric signal bus.Simultaneously by the assembly again of all metal polar plate electric signal buses in pile, it is total to obtain pile electric signal
Line.Pile electric signal bus is connected to data acquisition module, and data acquisition module carries out resulting analog signal to handle it
Afterwards, it is converted into data signal.Then all data signals are delivered to data processor.
After data processor has obtained the data of data acquisition module, further processing, data that will be resulting turn
Change the resistance value in physical significance, and the resistance-temperature characteristics curve obtained according to testing in advance into, obtain each film
The numerical value that temperature sensor is surveyed.And all data visualizations, real-time rendering temperature field curve, convenient use person are checked.
In addition, temperature field detection system detects metal polar plate surface temperature in real time, once there is exception in temperature, i.e., more than given threshold one
Fix time, alarm can be sent and carry out emergent management in time, avoid pile from burning, even blast etc. accident generation.
Compared with prior art, the localized hyperthermia being likely to occur that the present invention is directed in fuel cell pile causes pile to damage
It is bad, burn in addition explode the problem of, R ＆ D design goes out fuel cell pile internal temperature field dynamic detection system, by being embedded in
The part such as the film temperature sensor module on polar plate flow passage surface and nano-silver thread circuit, is realized to fuel cell pile temperature field
Detection in real time, so as to avoid pile from burning, the generation for the accident such as explode, not only tested in fuel cell pile in performance test etc.
In there is protective effect, and the scientific research experiment relevant with temperature to fuel cell pile has important practical significance.
Brief description of the drawings
Fig. 1 is the fuel cell pile internal temperature field dynamic detection system preparation flow schematic diagram that the present invention designs；
Fig. 2 is the film temperature sensor modular structure schematic diagram that the present invention designs；
Fig. 3 is the film-insulated substrate top view for the film temperature sensor with microstructure that the present invention designs；
Fig. 4 is the film-insulated substrate partial enlargement for the film temperature sensor with microstructure that the present invention designs
Figure；
Fig. 5 is film temperature sensor and the hermetically sealed top view of fuel battery metal pole plate；
Fig. 6 is film temperature sensor and the hermetically sealed partial enlarged drawing of fuel battery metal pole plate；
Fig. 7 is fuel cell pile internal temperature field dynamic detection system general assembly schematic diagram；
Fig. 8 is fuel cell pile internal temperature field dynamic detection system workflow schematic diagram；
In figure, 1- thermo-sensitive material dislodgers, 2- nano-silver thread wire casings, 3- electric signal bus ducts, 4- insulation film substrates, 5-
Hermetically sealed layer, 6- metal polar plates, 7- pole plate electric signal buses, 8- metal polar plate runners, 9- nano-silver thread circuits, 10- temperature-sensitives
Material layer, 11- fuel cell pile buses, 12- data acquisition modules, 13- data processors, 14- visualization windows.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
The detecting system of detection fuel cell pile internal temperature field change in real time, its preparation flow is as shown in figure 1, specific
Step is as follows：
(1) selection of insulation film substrate 4：Choice of substrate materials thickness is 0.1mm silica membrane.
(2) microstructure is processed：Process to obtain with thermo-sensitive material dislodger 1 and nano-silver thread line using micro- milling technology
The insulation film substrate of the feature of groove 2.Specifically, according to the thermo-sensitive material dislodger 1 of design and the size of nano-silver thread wire casing 2,
Numerical programming machining code.Then machining code is imported into micro- milling machine console.Cutter is installed, and silica is thin
Film is fixed on micro- Milling Process platform.Start micro- milling equipment, and after carrying out to knife, carry out digital control processing.Processing
Process includes the step such as roughing and finishing.Finally the chip of film surface is removed and removes silica membrane, is
Insulation film substrate 4 with required microstructure.
(3) thermo-sensitive material is deposited：Using vacuum evaporation coating technology.The insulation film substrate 4 that previous step is obtained and heat
The quick deposition mas of material layer 10 installation is positioned in the vacuum chamber of evaporation coating apparatus on sample preparation platform, is then shut chamber door and is taken out
Vacuum.By the work of the vavuum pump certain times such as mechanical pump, Lodz pump and molecular pump, the air pressure of cavity reaches setting work
Pressure, you can be evaporated plating.Now, Ni targets are rotated to work target position, starts target power supply, it is 2 to set its operating current
~5A, sedimentation time are 10sec~10min, you can obtain the heat-sensitive material layer 10 that there is thickness to be 200nm~1 μm.
(4) test obtains temperature resistance characteristic curve：By film temperature sensor module be positioned over thermostatical oil bath (or
Constant temperature sand-bath pot) among, the temperature of regulating thermostatic oil bath pan (or constant temperature sand-bath pot), and measure film temperature under specified temp
(each temperature carries out test several times to the resistance sizes of sensor assembly, takes its average value as corresponding electricity at this temperature
Hinder size)；For the application environment of fuel cell, the temperature range of test is 5 DEG C~200 DEG C.Determined in the temperature range
Resistance value corresponding to several temperature, and using the method for interpolation, you can obtain resistance-temperature of the film temperature sensor module
Spend characteristic curve.
(5) nano-silver thread scratches：Film temperature sensor module is kept flat to blade coating equipment workbench, opens work
The vavuum pump of platform, makes it be adsorbed onto workbench.Then the nano-silver thread silver paste solution that concentration is 50mg/ml is filled to blade coating equipment
Syringe in, by controlling air valve to make after syringe reaches the position specified, to carry out the injection of silver paste solution, then control again
Scraper processed reaches the position specified and carries out silver paste blade coating so that silver paste solution is uniformly coated to pre-processed nano-silver thread
Among wire casing 2.
(6) nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted, by constant temperature
The temperature of case is set as 80 DEG C~150 DEG C, and baking time is set as 5min~30min.Toasted by certain time certain temperature
Afterwards, you can obtain nano-silver thread circuit 9 with good conductivity.
(7) seal, encapsulate：By the film temperature sensor Module-embedding fuel battery metal pole plate obtained by above step
Among runner 8, then by the use of silica gel as encapsulant, film temperature sensor Modular surface is uniformly applied to, in it
Portion's circuit plays a protective role.
(8) data acquisition module circuit is connected：Film temperature sensor modular telecommunications number all on metal polar plate 6 are passed through
Electric signal bus duct 3 is crossed, is aggregated to form pole plate electric signal bus 7, and the pole plate electric signal bus 7 of all pole plates collects in pile
Form pile electric signal bus 11, then by the analog signal transmission in pile electric signal bus 11 to data acquisition module 12, will
It is converted into data signal, then transmits to data processor 13.
(9) temperature field detection system signal transacting：The signal processing flow of data processor 13, as shown in figure 8, the electricity of simulation
Signal after data acquisition module 12 is converted into data signal, is further transferred to data processor 13 by transmission.
Under normal circumstances, the electric signal numerical value that said process passes over is according to resistance-temperature for fuel cell pile temperature
Degree characteristic curve is converted into the real time temperature of fuel battery metal polar board surface, and the Dynamic Announce in visualization window 14,
Once monitoring fuel battery inside temperature field has abnormal conditions, data processor 13 carries out a point situation to the exception and handled, one
Denier confirms that exception is true, then triggers alarm mechanism, avoid the generation of accident in time.
Embodiment 2：
The detecting system of detection fuel cell pile internal temperature field change in real time, its preparation flow is as shown in figure 1, specific
Step is as follows：
(1) selection of insulation film substrate 4：The common flexible polymer insulating materials PC of Choice of substrate materials, thickness are
0.1mm。
(2) microstructure is processed：Process to obtain with thermo-sensitive material dislodger 1 using Single point diamond turning o process technology
With the mould of the feature of nano-silver thread wire casing 2, obtained mould is fixed on the disk roller of volume to volume (R2R) hot stamping machine, in advance
The disk roller and film base material of hot equipment, treat that temperature is maintained at 120 DEG C~150 DEG C, start volume to volume hot-press equipment, have
The disk roller of mould is imprinted film base material, and the final film base material with microstructure is wound onto wind-up roll
On, film base material is taken out, cooled down, you can obtains having the exhausted of thermo-sensitive material dislodger 1 and the feature of nano-silver thread wire casing 2
Edge film substrate 4.
(3) thermo-sensitive material is deposited：Using vacuum magnetic-control sputtering technology.Insulation film substrate 4 that previous step is obtained with
The deposition mas of heat-sensitive material layer 10 is together fixed in the vacuum chamber of vacuum magnetic-control sputtering equipment on pivoted frame, is then shut chamber door and is entered
Row vacuumizes, and by the work of the vavuum pump certain times such as mechanical pump, Lodz pump and molecular pump, the air pressure of cavity reaches setting
Operating pressure, you can carry out magnetron sputtering；Start Al target target power supplys, it is 1~7A to set its operating current, and sedimentation time is
30sec~10min, you can obtain the heat-sensitive material layer 10 that there is thickness to be 200nm~400nm.
(4) test obtains temperature resistance characteristic curve：It is (or permanent that film temperature sensor module is placed in thermostatical oil bath
Warm sand-bath pot) among, by the temperature of regulating thermostatic oil bath pan (or constant temperature sand-bath pot), and measure film temperature under specified temp
(each temperature carries out test several times to the resistance sizes of degree sensor assembly, takes its average value as corresponding at this temperature
Resistance sizes), for the application environment of fuel cell, the temperature range of test is 5 DEG C~200 DEG C, is surveyed in the temperature range
Resistance value corresponding to several fixed temperature, and using the method for interpolation, you can obtain the resistance of the film temperature sensor module-
Temperature characteristics.
(5) nano-silver thread scratches：Film temperature sensor module is kept flat to blade coating equipment workbench, opens work
The vavuum pump of platform, it is adsorbed onto workbench, the nano-silver thread silver paste solution that concentration is 20mg/ml is then filled to blade coating
In the syringe of equipment, by controlling air valve to make after syringe reaches the position specified, to carry out the injection of silver paste solution, then
Control scraper to reach the position specified again and carry out silver paste blade coating so that silver paste solution is uniformly coated to pre-processed nanometer
Among silver wire wire casing.
(6) nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted, by constant temperature
The temperature of case is set as 80 DEG C~150 DEG C, and baking time is set as 5min~30min, is toasted by certain time certain temperature
Afterwards, you can obtain nano-silver thread circuit with good conductivity.
(7) seal, encapsulate：By the film temperature sensor Module-embedding fuel battery metal pole plate obtained by above step
In runner 8, then by the use of transparent bifluoride magnesium film as sealing packing material, by the film temperature in metal polar plate runner 8
Sensor covering, sealing, play a protective role to its internal wiring.
(8) data acquisition module circuit is connected：Film temperature sensor modular telecommunications number all on metal polar plate 6 are passed through
Electric signal bus duct 3 is crossed, is aggregated to form pole plate electric signal bus 7, the pole plate electric signal bus 7 of all metal polar plates 6 in pile
It is aggregated to form pile electric signal bus 11, then by the analog signal transmission in pile electric signal bus 11 to data acquisition module
12, data signal is converted thereof into, then transmit to data processor 13.
(9) temperature field detection system signal transacting：The signal processing flow of data processor 13 is as shown in figure 8, the electricity of simulation
Signal after data acquisition module 12 is converted into data signal, is further transferred to data processor 13 by transmission.
Under normal circumstances, the electric signal numerical value that said process passes over is according to resistance-temperature for fuel cell pile temperature
Degree characteristic curve is converted into the real time temperature of fuel battery metal polar board surface, and the Dynamic Announce in visualization window 14,
Once monitoring fuel battery inside temperature field has abnormal conditions, data processor 13 carries out a point situation to the exception and handled, one
Denier confirms that exception is true, then triggers alarm mechanism, avoid the generation of accident in time.
Embodiment 3：
The detecting system of detection fuel cell pile internal temperature field change in real time, its preparation flow is as shown in figure 1, specific
Step is as follows：
(1) selection of insulation film substrate 4：The common flexible polymer insulating materials PET of Choice of substrate materials, thickness are
0.1mm。
(2) microstructure is processed：Process to obtain with thermo-sensitive material dislodger 1 and nanometer using femtosecond laser process technology
The mould of the feature of silver wire wire casing 2, obtained mould is fixed on volume to volume (R2R) ultraviolet nanometer Embosser mould roller, in advance
Mold heat disk roller 1min~5min, start R2R ultraviolet nanometer Embossers, open UV ultraviolet curing lamps, UV glue drop coatings are arrived
In insulation film substrate 4, insulation film substrate 4 passes through mould roller, and UV glue goes out microstructure by die marks, rapidly by UV lamp
Solidify afterwards are irradiated, the insulation film substrate 4 of final gained is wound onto on wind-up roll, the material of insulation film substrate 4 is taken out, cold
But, you can obtain the film-insulated substrate 4 with thermo-sensitive material dislodger 1 and the feature of nano-silver thread wire casing 2.
(3) thermo-sensitive material is deposited：Using vacuum evaporation coating technology, the insulation film substrate 4 that previous step is obtained and heat
The quick deposition mas of material layer 10 is together positioned in the vacuum chamber of evaporation coating apparatus on sample preparation platform, is then shut chamber door and is taken out
Vacuum, by the work of the vavuum pump certain times such as mechanical pump, Lodz pump and molecular pump, the air pressure of cavity reaches setting work
Pressure, you can be evaporated plating, now, Cu targets rotated to work target position, start target power supply, it is 2 to set its operating current
~5A, sedimentation time are 10sec~10min, you can obtain the heat-sensitive material layer 10 that there is thickness to be 200nm~1 μm.
(4) test obtains temperature resistance characteristic curve：I.e. by the way that film temperature sensor module is positioned over into constant temperature oil bath
Among pot (or constant temperature sand-bath pot), by the temperature of regulating thermostatic oil bath pan (or constant temperature sand-bath pot), and specific temperature is measured
(each temperature carries out test several times to the resistance sizes of the lower film temperature sensor module of degree, takes its average value as the temperature
Resistance sizes corresponding to degree is lower), for the application environment of fuel cell, the temperature range of test is 5 DEG C~200 DEG C, in the temperature
Spend and resistance value corresponding to several temperature is determined in section, and using the method for interpolation, you can obtain the film temperature sensor
The resistance-temperature characteristics curve of module.
(5) nano-silver thread scratches：Film temperature sensor module is kept flat to blade coating equipment workbench, opens work
The vavuum pump of platform, it is adsorbed onto workbench, the nano-silver thread silver paste solution that concentration is 60mg/ml is then filled to blade coating
In the syringe of equipment, by controlling air valve to make after syringe reaches the position specified, to carry out the injection of silver paste solution, then
Control scraper to reach the position specified again and carry out silver paste blade coating so that silver paste solution is uniformly coated to pre-processed nanometer
Among silver wire wire casing 2.
(6) nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted, by constant temperature
The temperature of case is set as 80 DEG C~150 DEG C, and baking time is set as 5min~30min, is toasted by certain time certain temperature
Afterwards, you can obtain nano-silver thread circuit with good conductivity.
(7) seal, encapsulate：By the film temperature sensor Module-embedding fuel battery metal pole plate obtained by above step
In runner 8, then by the use of silica gel as encapsulant, film temperature sensor Modular surface is uniformly applied to, to its inside
Circuit plays a protective role.
(8) data acquisition module circuit is connected：Film temperature sensor modular telecommunications number all on metal polar plate 6 are passed through
Electric signal bus duct 3 is crossed, is aggregated to form pole plate electric signal bus 7, the pole plate electric signal bus 7 of all metal polar plates 6 in pile
Pile electric signal bus 11 is aggregated to form, by the analog signal transmission in pile electric signal bus 11 to data acquisition module 12,
Data signal is converted thereof into, then is transmitted to data processor 13.
(9) temperature field detection system signal transacting：The signal processing flow of data processor 13 is as shown in Figure 8.The electricity of simulation
Signal after data acquisition module 12 is converted into data signal, is further transferred to data processor 13 by transmission.
Under normal circumstances, the electric signal numerical value that said process passes over is according to resistance-temperature for fuel cell pile temperature
Degree characteristic curve is converted into the real time temperature of fuel battery metal polar board surface, and the Dynamic Announce in visualization window 14.
Once monitoring fuel battery inside temperature field has abnormal conditions, data processor 13 carries out a point situation to the exception and handled, one
Denier confirms that exception is true, then triggers alarm mechanism, avoid the generation of accident in time.
Embodiment 4：
As Figure 4-8, the detecting system of detection fuel cell pile internal temperature field change in real time, the system independently of
Fuel cell pile, it is the temperature field detection system added on fuel cell pile, including is embedded in fuel battery metal pole
Film temperature sensor module in plate runner 8, the nano-silver thread circuit 9 being laid in film temperature sensor module, coating
The sealing for being simultaneously packaged film temperature sensor module and nano-silver thread circuit 9 in film temperature sensor module is sealed
Fill layer 5, the data acquisition module 12 electrically connected successively with nano-silver thread circuit 9, data processor 13.
As shown in figure 3, film temperature sensor module includes insulation film substrate 4, is arranged on the surface of insulation film substrate 4
On thermo-sensitive material dislodger 1 and the heat-sensitive material layer 10 that is laid in thermo-sensitive material dislodger 1.
Wherein, the thickness of insulation film substrate 4 is 0.02mm.Insulation film substrate 4 is PMMA substrates.Heat-sensitive material layer 10
Thickness be 200nm.The detection temperature scope of heat-sensitive material layer 10 is 5-200 DEG C, and the thermo-sensitive material in heat-sensitive material layer 10 is
Pt。
The surface of insulation film substrate 4 is provided with the nano-silver thread wire casing 2 for being used for laying nano-silver thread circuit 9, the Nano Silver
Line wire casing 2 is shaped as straight-line groove；Thermo-sensitive material dislodger 1 is shaped as rectangular channel.The width of nano-silver thread circuit 9 is 0.1 μ
M, length 5mm.
The preparation method of the detecting system of detection fuel cell pile internal temperature field change, this method specifically include in real time
Following steps：
Step (1)：The selection of insulation film substrate 4：Select insulation film substrate 4 of the thickness for 0.02mm；
Step (2)：Microstructure is processed：Thermo-sensitive material is processed by Soft lithograph on the basal surface of insulation film base 4 to sink
Product groove 1 and nano-silver thread wire casing 2, obtained surface have the insulation film substrate 4 of microstructure；
Step (3)：Deposit thermo-sensitive material：Thermo-sensitive material is deposited in thermo-sensitive material dislodger 1 by radio-frequency sputtering, shape
Into heat-sensitive material layer 10, film temperature sensor module is made；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat
In, the temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and use
Interpolation method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：It is by blade coating equipment that the nano-silver thread silver paste that concentration is 100mg/ml is molten
Liquid is uniformly coated in the nano-silver thread wire casing 2 in film temperature sensor module；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted,
The film temperature sensor module for being laid with nano-silver thread circuit is made；
Step (7)：It is hermetically sealed：The obtained film temperature sensor module for being laid with nano-silver thread circuit 9 is embedded
Enter in fuel battery metal polar plate flow passage 8, and hermetically sealed layer 5 is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit 9 in film temperature sensor module is passed through
Cross electric signal bus duct and be aggregated to form pole plate electric signal bus 7, by the pole plate telecommunications of all metal polar plates 6 in fuel cell pile
Number bus 7 is aggregated to form pile electric signal bus 11, then analog signal transmission to the data in pile electric signal bus 11 are adopted
Collect module 12, convert thereof into data signal, then transmit into data processor 14, you can.
Remaining is the same as embodiment 1.
Embodiment 5：
The present embodiment detects in the detecting system of fuel cell pile internal temperature field change in real time, insulation film substrate 4
Thickness be 0.1mm.Insulation film substrate 4 is PES substrates.The thickness of heat-sensitive material layer 10 is 10 μm.Heat-sensitive material layer 10
Detection temperature scope is 5-200 DEG C, and the thermo-sensitive material in heat-sensitive material layer 10 is Cu.
The surface of insulation film substrate 4 is provided with the nano-silver thread wire casing 2 for being used for laying nano-silver thread circuit 9, the Nano Silver
Line wire casing 2 is shaped as wavy line groove；Thermo-sensitive material dislodger 1 is shaped as circular trough.The width of nano-silver thread circuit 9 is
100 μm, length 500mm.
The preparation method of the detecting system of detection fuel cell pile internal temperature field change, this method specifically include in real time
Following steps：
Step (1)：The selection of insulation film substrate 4：Select insulation film substrate 4 of the thickness for 0.1mm；
Step (2)：Microstructure is processed：Thermo-sensitive material deposition is processed on the basal surface of insulation film base 4 by photoetching
Groove 1 and nano-silver thread wire casing 2, obtained surface have the insulation film substrate 4 of microstructure；
Step (3)：Deposit thermo-sensitive material：Thermo-sensitive material is deposited in thermo-sensitive material dislodger 1 by d.c. sputtering, shape
Into heat-sensitive material layer 10, film temperature sensor module is made；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat
In, the temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and use
Interpolation method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：It is equal that the nano-silver thread silver paste solution that size is 2mg/ml will be spent by blade coating equipment
In the even nano-silver thread wire casing 2 being coated in film temperature sensor module；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted,
The film temperature sensor module for being laid with nano-silver thread circuit is made；
Step (7)：It is hermetically sealed：The obtained film temperature sensor module for being laid with nano-silver thread circuit 9 is embedded
Enter in fuel battery metal polar plate flow passage 8, and hermetically sealed layer 5 is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit 9 in film temperature sensor module is passed through
Cross electric signal bus duct and be aggregated to form pole plate electric signal bus 7, by the pole plate telecommunications of all metal polar plates 6 in fuel cell pile
Number bus 7 is aggregated to form pile electric signal bus 11, then analog signal transmission to the data in pile electric signal bus 11 are adopted
Collect module 12, convert thereof into data signal, then transmit into data processor 14, you can.
Remaining is the same as embodiment 1.
Embodiment 6：
The present embodiment detects in the detecting system of fuel cell pile internal temperature field change in real time, insulation film substrate 4
Thickness be 0.05mm.Insulation film substrate 4 is aluminum oxide film.The thickness of heat-sensitive material layer 10 is 1 μm.Heat-sensitive material layer 10
Detection temperature scope be 5-200 DEG C, the thermo-sensitive material in heat-sensitive material layer 10 is Ti.
The surface of insulation film substrate 4 is provided with the nano-silver thread wire casing 2 for being used for laying nano-silver thread circuit 9, the Nano Silver
Line wire casing 2 is shaped as wavy line groove；Thermo-sensitive material dislodger 1 is shaped as elliptical slot.The width of nano-silver thread circuit 9 is
10 μm, length 100mm.
The preparation method of the detecting system of detection fuel cell pile internal temperature field change, this method specifically include in real time
Following steps：
Step (1)：The selection of insulation film substrate 4：Select insulation film substrate 4 of the thickness for 0.05mm；
Step (2)：Microstructure is processed：Thermo-sensitive material is processed by micro- milling on the basal surface of insulation film base 4 to sink
Product groove 1 and nano-silver thread wire casing 2, obtained surface have the insulation film substrate 4 of microstructure；
Step (3)：Deposit thermo-sensitive material：Thermo-sensitive material is deposited in thermo-sensitive material dislodger 1 by vacuum evaporation, shape
Into heat-sensitive material layer 10, film temperature sensor module is made；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat
In, the temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and use
Interpolation method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：It is by blade coating equipment that the nano-silver thread silver paste that concentration is 15mg/ml is molten
Liquid is uniformly coated in the nano-silver thread wire casing 2 in film temperature sensor module；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted,
The film temperature sensor module for being laid with nano-silver thread circuit is made；
Step (7)：It is hermetically sealed：The obtained film temperature sensor module for being laid with nano-silver thread circuit 9 is embedded
Enter in fuel battery metal polar plate flow passage 8, and hermetically sealed layer 5 is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit 9 in film temperature sensor module is passed through
Cross electric signal bus duct and be aggregated to form pole plate electric signal bus 7, by the pole plate telecommunications of all metal polar plates 6 in fuel cell pile
Number bus 7 is aggregated to form pile electric signal bus 11, then analog signal transmission to the data in pile electric signal bus 11 are adopted
Collect module 12, convert thereof into data signal, then transmit into data processor 14, you can.
Remaining is the same as embodiment 1.
Embodiment 7：
The present embodiment detects in the detecting system of fuel cell pile internal temperature field change in real time, insulation film substrate 4
Thickness be 0.06mm.Insulation film substrate 4 is magnesia film.The thickness of heat-sensitive material layer 10 is 2 μm.Heat-sensitive material layer 10
Detection temperature scope be 5-200 DEG C, the thermo-sensitive material in heat-sensitive material layer 10 is Al.
The surface of insulation film substrate 4 is provided with the nano-silver thread wire casing 2 for being used for laying nano-silver thread circuit 9, the Nano Silver
Line wire casing 2 is shaped as wavy line groove；Thermo-sensitive material dislodger 1 is shaped as elliptical slot.The width of nano-silver thread circuit 9 is
25 μm, length 80mm.
The preparation method of the detecting system of detection fuel cell pile internal temperature field change, this method specifically include in real time
Following steps：
Step (1)：The selection of insulation film substrate 4：Select insulation film substrate 4 of the thickness for 0.06mm；
Step (2)：Microstructure is processed：Thermo-sensitive material is processed by hot padding on the basal surface of insulation film base 4 to sink
Product groove 1 and nano-silver thread wire casing 2, obtained surface have the insulation film substrate 4 of microstructure；
Step (3)：Deposit thermo-sensitive material：Thermo-sensitive material is deposited in thermo-sensitive material dislodger 1 by microplating, formed
Heat-sensitive material layer 10, film temperature sensor module is made；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat
In, the temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and use
Interpolation method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：It is by blade coating equipment that the nano-silver thread silver paste that concentration is 45mg/ml is molten
Liquid is uniformly coated in the nano-silver thread wire casing 2 in film temperature sensor module；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted,
The film temperature sensor module for being laid with nano-silver thread circuit is made；
Step (7)：It is hermetically sealed：The obtained film temperature sensor module for being laid with nano-silver thread circuit 9 is embedded
Enter in fuel battery metal polar plate flow passage 8, and hermetically sealed layer 5 is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit 9 in film temperature sensor module is passed through
Cross electric signal bus duct and be aggregated to form pole plate electric signal bus 7, by the pole plate telecommunications of all metal polar plates 6 in fuel cell pile
Number bus 7 is aggregated to form pile electric signal bus 11, then analog signal transmission to the data in pile electric signal bus 11 are adopted
Collect module 12, convert thereof into data signal, then transmit into data processor 14, you can.
Remaining is the same as embodiment 1.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention
Within protection domain.
Claims (10)
1. the detecting system of detection fuel cell pile internal temperature field change in real time, the system independently of fuel cell pile,
It is the temperature field detection system added on fuel cell pile, it is characterised in that including being embedded in fuel battery metal pole plate
Film temperature sensor module in runner, the nano-silver thread circuit being laid in film temperature sensor module, be coated on it is thin
The hermetically sealed layer that is simultaneously packaged film temperature sensor module and nano-silver thread circuit on film temperature sensor assembly,
Data acquisition module, the data processor electrically connected successively with nano-silver thread circuit.
2. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 1, its feature
It is, described film temperature sensor module includes insulation film substrate, the temperature-sensitive being arranged on insulation film substrate surface
Material dislodger and the heat-sensitive material layer being laid in thermo-sensitive material dislodger.
3. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 2, its feature
It is, the thickness of described insulation film substrate is 0.02-0.1mm.
4. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 2, its feature
It is, described insulation film substrate is organic polymer substrate or inorganic oxide film substrate.
5. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 4, its feature
It is, described organic polymer substrate includes PET base, PI substrates, PEI substrates, PTFE substrates, PMMA substrates, PDMS bases
One kind in bottom, PC substrates, PEN substrates or PES substrates；
Inorganic oxide in described inorganic oxide film substrate is included in silica, silicon nitride, aluminum oxide or magnesia
One or more.
6. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 2, its feature
It is, the thickness of described heat-sensitive material layer is 200nm-10 μm.
7. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 6, its feature
Be, the detection temperature scope of described heat-sensitive material layer is 5-200 DEG C, the thermo-sensitive material in heat-sensitive material layer include Cu, Ti,
One or more in Al, Ag, Pt or Ni.
8. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 2, its feature
It is, described insulation film substrate surface is provided with the nano-silver thread wire casing for being used for laying nano-silver thread circuit, the Nano Silver
The shape of line wire casing includes one kind in straight-line groove or wavy line groove；
The shape of described thermo-sensitive material dislodger includes one kind in rectangular channel, circular trough or elliptical slot.
9. the detecting system of the internal temperature field change of detection fuel cell pile in real time according to claim 1, its feature
It is, the width of described nano-silver thread circuit is 0.1-100 μm, length 5-500mm.
10. the preparation side of the detecting system of the internal temperature field change of detection fuel cell pile in real time as claimed in claim 1
Method, it is characterised in that this method specifically includes following steps：
Step (1)：The selection of insulation film substrate：Select insulation film substrate of the thickness for 0.02-0.1mm；
Step (2)：Microstructure is processed：It is thin in insulation by micro- milling, hot padding, ultraviolet nanometer impressing, Soft lithograph or photoetching
Thermo-sensitive material dislodger and nano-silver thread wire casing are processed on film substrate surface, obtained surface has the insulation film of microstructure
Substrate；
Step (3)：Deposit thermo-sensitive material：Splashed by vacuum magnetic-control sputtering, radio-frequency sputtering, d.c. sputtering, vacuum evaporation, ion beam
Penetrate, thermo-sensitive material is deposited in thermo-sensitive material dislodger by microplating or ald, formation heat-sensitive material layer, obtained film
Temperature sensor module；
Step (4)：Test obtains temperature resistance characteristic curve：Obtained film temperature sensor module is placed in thermostat,
The temperature of regulation thermostat, resistance value corresponding to film temperature sensor module under several specified temps is determined, and using slotting
Value method, obtain the resistance-temperature characteristics curve of film temperature sensor module；
Step (5)：Nano-silver thread scratches：Nano-silver thread silver paste solution is uniformly coated on by film temperature sensing by blade coating equipment
In nano-silver thread wire casing in device module；
Step (6)：Nano-silver thread toasts：Then film temperature sensor module is transferred in insulating box and toasted, that is, is made
The film temperature sensor module of nano-silver thread circuit must be laid with；
Step (7)：It is hermetically sealed：The obtained film temperature sensor module for being laid with nano-silver thread circuit is embedded into fuel
In battery metal polar plate flow passage, and hermetically sealed layer is coated with film temperature sensor module；
Step (8)：Connect data acquisition module circuit：Nano-silver thread circuit in film temperature sensor module is passed through into telecommunications
Number bus duct is aggregated to form pole plate electric signal bus, and the pole plate electric signal bus of all pole plates in fuel cell pile is collected into shape
Converted thereof into pile electric signal bus, then by the analog signal transmission in pile electric signal bus to data acquisition module
Data signal, then transmit into data processor, you can.
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