CN104359571A - Fuel cell internal temperature-current density distribution measurement male tab - Google Patents
Fuel cell internal temperature-current density distribution measurement male tab Download PDFInfo
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- CN104359571A CN104359571A CN201410636187.4A CN201410636187A CN104359571A CN 104359571 A CN104359571 A CN 104359571A CN 201410636187 A CN201410636187 A CN 201410636187A CN 104359571 A CN104359571 A CN 104359571A
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Abstract
A fuel cell internal temperature-current density distribution measurement male tab is a measurement device for internal temperature and current density distribution inside a fuel cell. A temperature-current density synchronous measurement sensor is arranged on a rib between every two adjacent leaks of a conductive substrate; the leaks and the ribs on the conductive substrate correspond to flow channels and ribs on a fuel cell flow field plate, and electrical signals are transmitted to an external measurement circuit and data acquisition equipment through leads; each temperature-current density synchronous measurement sensor is composed of six layers of films evaporated by a vacuum evaporation coating method. The fuel cell internal temperature-current density distribution measurement male tab realizes synchronous online measurement of internal temperature and current density distribution of the fuel cell under the condition that operation of the fuel cell is unaffected, can be mounted inside the fuel cell as an independent component, does not require special modification on the structure of the fuel cell, and is simple in structure, convenient to produce, adaptable to fuel cell flow field plates with parallel flow channels, S-shaped flow channels, staggered flow channels or channels of other shapes.
Description
Technical field
The present invention relates to a kind of fuel battery inside temperature-current Density Distribution and measure inserted sheet, belong to fuel cell detection technique field.
Background technology
Electrochemical reaction in fuel cell concentrates on membrane electrode, and due to the difference that fuel cell structure design and running operating mode is chosen, cause electrochemical reaction speed on membrane electrode uneven, this has a great impact the performance of fuel cell.The homogeneity of fuel battery inside temperature and electric current distribution can reflect the degree of uniformity that membrane electrode surface electrochemistry reacts, and by measuring it, can provide foundation for optimizing fuel cell structure design and choosing optimal operating condition.
For the measurement of temperature, its classic method mainly by micro temperature sensor, thermoelectricity occasionally thermal resistance imbed in the runner of fuel cell, or be integrated with the membrane electrode hot pressing of fuel cell, these methods are processing and fabricating difficulty not only, and the implantation of temperature element also destroys the impermeability of overall fuel cell structure, even reduce the active area of membrane electrode, and then have influence on the performance of fuel cell; The main method that current density is measured has sub-battery method, local film-electrode method, magnet ring group method etc., these methods need to carry out process and remould or segmentation membrane electrode assembly to the pole plate of fuel cell or flow-field plate mostly, and difficulty of processing is large, complex process, cost of manufacture are high.And the parameter of fuel battery inside is measured one by one, add complexity and the workload of surveying work undoubtedly, also have a great impact the stable of fuel battery performance, therefore making the measurement mechanism of synchro measure fuel battery inside many kinds of parameters distribution to be necessary simultaneously.
Fuel battery inside temperature-current Density Distribution of the present invention measures the distribution situation that inserted sheet can realize synchronous on-line measurement fuel battery inside temperature and current density, simplifies the method for fuel battery inside temperature and electric current distribution measurement; This invention is independent of tested fuel cell, do not need to carry out special transformation to the structure of tested fuel cell, decrease the being dismounted for multiple times to fuel cell, thus reduce the cost up and workload increase brought due to multiparameter distribution measuring, decrease the destruction to fuel battery performance.
Summary of the invention
The object of the present invention is to provide the measurement mechanism of a kind of energy synchronous on-line measurement fuel battery inside temperature and electric current distribution.This device can be used as individual member and is installed on fuel battery inside, and structure is simple, easy to make, without the need to carrying out special transformation to fuel battery inside structure, simplifies the step of fuel battery inside temperature and the synchronous distribution measuring of current density.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is that fuel battery inside temperature-current Density Distribution measures inserted sheet, and this measurement inserted sheet comprises conductive substrate 1, crack 2, muscle 3, temperature-current density translocation sensor 4, lead-in wire 5, pilot hole 7; Described crack 2, muscle 3 are arranged on conductive substrate 1, muscle 3 is between two adjacent cracks 2, crack 2 is identical with the shape and size of ridge with fuel cell flow field board upper runner respectively with the shape and size of muscle 3, and crack 2 is corresponding with fuel cell flow field board runner and ridge respectively with the position of muscle 3; Described temperature-current density translocation sensor 4 is arranged on muscle 3; One end of lead-in wire 5 connects with the wiring exit of temperature-current density translocation sensor 4, and the other end extends to the edge of conductive substrate 1 and amplifies formation pin 6; Pilot hole 7 is symmetrical, be evenly arranged on conductive substrate 1 surrounding, in order to be fixed on fuel cell flow field board by conductive substrate 1; During fuel cell assembling, temperature-current Density Distribution is measured inserted sheet and is arranged in the middle of fuel cell flow field board and membrane electrode, its be provided with temperature-current density translocation sensor 4 facing to membrane electrode side also close contact with it.
Described temperature-current density translocation sensor 4 adopts vacuum evaporation coating film method evaporation six layer film on muscle 3: ground floor is that evaporation thick layer is the silicon dioxide insulating layer 14 of 0.08-0.12 μm on muscle 3; The second layer is evaporation thick film thermocouple copper coating 15 for 0.1-0.12 μm on silicon dioxide insulating layer 14; Third layer is evaporation thick film thermocouple nickel coating 16 for 0.1-0.12 μm on silicon dioxide insulating layer 14; The shape of described film thermocouple copper coating 15 and film thermocouple nickel coating 16 is strip, and mesophase spherule lap connects, and lap-joint forms film thermocouple hot junction node 27, and head end is film thermocouple wiring exit 26; 4th layer is the thick silicon dioxide layer of protection 17 for 0.08-0.12 μm of evaporation above the film thermocouple coat of metal; Layer 5 is that the thick current density for 1.5-2.0 μm of evaporation above silicon dioxide layer of protection 17 measures copper coating 18; Layer 6 is measure the thick current density for 0.1-0.12 μm of evaporation above copper coating 18 in current density to measure gold plate 19; Described current density measures copper coating 18 and current density measurement gold plate 19 is overlapped, and head end is that current density measures coat of metal wiring exit 29.
Described film thermocouple wiring exit 26 and current density are measured coat of metal wiring exit 29 and are all made into circle, and are all arranged in the same side of silicon dioxide insulating layer 14.
The shape of described conductive substrate 1 can be made into square, circular, polygon, trapezoidal, triangle, irregular figure.
On described conductive substrate 1, the shape of crack 2 can be snakelike crack, parallel crack, poroid crack, staggered crack.
The film thermocouple coat of metal material be made up of copper and mickel in described temperature-current density translocation sensor 4 can also select tungsten and nickel, copper and cobalt, molybdenum and nickel, antimony and cobalt to substitute, and metal mixture material such as copper and constantan also can be adopted to substitute.
In described temperature-current density translocation sensor 4, the shape of film thermocouple copper coating and film thermocouple nickel coating sets according to the shape of mask, its shape can also be ellipse, arc, waveform, rhombus and irregularly shaped, and the shape mutually after overlap joint can be arc, waveform, serrate.
In described temperature-current density translocation sensor 4, the shape of the current density measurement coat of metal 28 sets according to the shape of mask, and its shape can be square, circular, oval, trapezoidal.
Described film thermocouple wiring exit 26 and current density measure the both sides being arranged in silicon dioxide insulating layer 14 that coat of metal wiring exit 29 can be relative respectively, and its shape also can be ellipse, rectangle, trapezoidal, triangle.
The width of described lead-in wire 5 is 0.1-0.2mm, amplifies in the edge of conductive substrate 1, forms pin 6.
Lead-in wire 5 adopts the four-level membrane of vacuum evaporation coating film method evaporation to form, ground floor is the lead-in wire silicon dioxide insulating layer 30 of thick 0.08-0.12 μm, the second layer is the lead-in wire copper coating 31 of thick 0.1-0.12 μm, third layer is the lead-in wire gold plate 32 of thick 0.1-0.12 μm, and most last layer is the lead-in wire silicon dioxide layer of protection 33 of thick 0.05-0.1 μm; Wherein, at pin 6 place not evaporation lead-in wire silicon dioxide layer of protection 30.
Compared with prior art, the present invention has following beneficial effect.
Fuel battery inside temperature-current Density Distribution of the present invention measures inserted sheet, it is furnished with temperature-current density translocation sensor on the muscle of conductive substrate, can realize the distribution situation of synchro measure fuel battery inside temperature and current density in fuel cell operation; When assembling with fuel cell, this contrive equipment can be used as individual member and is installed in the middle of fuel cell flow field board and membrane electrode, do not need to carry out special transformation to other structures such as fuel cell flow field board or pole plate, reduce by the impact of the implantation of measurement mechanism on fuel battery performance; Meanwhile, this apparatus structure is simple, easy to make, applied widely, can adapt to the fuel cell flow field board of parallel fluid channels, serpentine flow path, stagger mode runner or other abnormal flow road shape.
Accompanying drawing explanation
Fig. 1 is that the parallel crack of fuel battery inside temperature-current Density Distribution measures the subjective schematic diagram of inserted sheet;
Fig. 2 is the subjective schematic diagram that fuel battery inside temperature-current Density Distribution measures single temperature-current density translocation sensor on inserted sheet;
Fig. 3 is the Making programme figure that fuel battery inside temperature-current Density Distribution measures single temperature-current density translocation sensor on inserted sheet;
Fig. 4 is the subjective schematic diagram in cross section that fuel battery inside temperature-current Density Distribution measures temperature-current density translocation sensor lead on inserted sheet;
Fig. 5 is that the fuel battery inside temperature-current Density Distribution crack that interlocks measures the subjective schematic diagram of inserted sheet;
Fig. 6 is that the snakelike single crack of fuel battery inside temperature-current Density Distribution measures the subjective schematic diagram of inserted sheet;
Fig. 7 is that fuel battery inside temperature-current Density Distribution snakelike pair of crack measures the subjective schematic diagram of inserted sheet;
In figure, 1, conductive substrate, 2, crack, 3, muscle, 4, temperature-current density translocation sensor, 5, lead-in wire, 6, pin, 7, pilot hole;
8-13 is each coating mask of temperature-current density translocation sensor: 8, silicon dioxide insulating layer mask, 9, film thermocouple copper coating mask, 10, film thermocouple nickel coating mask, 11, silicon dioxide layer of protection mask, 12, current density measures copper coating mask, and 13, current density measures gold plate mask;
14-19 is each coating of temperature-current density translocation sensor according to mask evaporation: 14, silicon dioxide insulating layer, 15, film thermocouple copper coating, 16, film thermocouple nickel coating, 17, silicon dioxide layer of protection, 18, current density measure copper coating, 19, current density measure gold plate;
20-25 is the making step of temperature-current density translocation sensor: 20, step one, 21, step 2,22, step 3,23, step 4,24, step 5,25, step 6;
26, film thermocouple wiring exit, 27, film thermocouple hot junction node, 28, current density measures the coat of metal, 29, current density measures coat of metal wiring exit;
30, go between silicon dioxide insulating layer, 31, lead-in wire copper coating, 32, lead-in wire gold plate, 33, lead-in wire silicon dioxide layer of protection;
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to shown in Fig. 1, fuel battery inside temperature-current Density Distribution of the present invention measures inserted sheet, comprises conductive substrate 1, crack 2, muscle 3, temperature-current density translocation sensor 4, lead-in wire 5, pin 6, pilot hole 7; Crack 2 and muscle 3 are arranged on conductive substrate 1, and it is identical in shape and size with ridge with the runner on tested fuel cell flow field board, and position is mutually corresponding, and muscle 3 is furnished with temperature-current density translocation sensor 4; 5 one end that go between are connected with temperature-current density translocation sensor 4, and the other end extends to the edge of conductive substrate 1, for transmitting the electric signal that temperature-current density translocation sensor 4 produces; Pin 6 is arranged in the edge of conductive substrate 1 and is connected with lead-in wire 5; Be furnished with pilot hole 7 in the surrounding of conductive substrate, facilitate this temperature-current Density Distribution measure the location of inserted sheet and fuel cell flow field board and fix.For the mating shapes with tested fuel cell, the shape of conductive substrate 1 can be made into square, circular, polygon, trapezoidal, triangle etc.During measurement, this measurement inserted sheet is implanted between fuel cell flow field board and membrane electrode assembly, be fixed on fuel cell flow field board by pilot hole 7, be furnished with temperature-current density translocation sensor 4 facing to fuel cell membrane electrode assembly direction, and with membrane electrode assembly close contact, crack 2 is corresponding with the runner on fuel cell flow field board, muscle 3 is corresponding with the ridge on fuel cell flow field board, does not affect the diffusion of reactant to membrane electrode direction to make the implantation of measurement inserted sheet.Simultaneously, the temperature and the current density that are arranged in the temperature-current density translocation sensor 4 pairs of fuel battery insides measured on inserted sheet are measured, the electric signal produced is passed to pin 6 by lead-in wire 5, the data input pin of data acquisition equipment is connected with pin 6 electric signal that can collect and measure inserted sheet and export, and computational analysis goes out the distribution of fuel battery inside temperature and current density.
With reference to shown in Fig. 2, temperature-current density translocation sensor 4 of the present invention adopts six layer films of evaporation on the muscle 3 of vacuum evaporation coating film method between the adjacent crack 2 of conductive substrate 1 liang to form: ground floor is the silicon dioxide insulating layer 14 of thick 0.08-0.12 μm, the second layer is evaporation thick film thermocouple copper coating 15 for 0.1-0.12 μm on silicon dioxide insulating layer 14, third layer is evaporation thick film thermocouple nickel coating 16 for 0.1-0.12 μm on silicon dioxide insulating layer 14, 4th layer is the thick silicon dioxide layer of protection 17 for 0.08-0.12 μm of evaporation above the film thermocouple coat of metal, measure between the coat of metal to make film thermocouple and current density and insulate fully, in case the electric signal of film thermocouple is subject to the interference that current density measures coat of metal electric current, layer 5 is that the thick current density for 1.5-2.0 μm of evaporation above silicon dioxide layer of protection 17 measures copper coating 18, layer 6 is measure the thick current density for 0.1-0.12 μm of evaporation above copper coating 18 in current density to measure gold plate 19, and current density measures copper coating 18 and current density measurement gold plate 19 is overlapped.Because copper and gold are the good conductor of heat, coefficient of heat conductivity is very high, in addition the current density of evaporation is measured copper coating and current density to measure gold plate all very thin, and therefore the current density of evaporation on film thermocouple upper strata is measured copper coating and current density and measured gold plate and can be left in the basket to the interference that film thermocouple measuring accuracy causes.
Fig. 3 is Making programme figure: 8-13 of single temperature-current density translocation sensor is each coating mask of temperature-current density translocation sensor, 14-19 is each coating of temperature-current density translocation sensor according to mask evaporation, and 20-25 is the making step of temperature-current density translocation sensor.First according to silicon dioxide insulating layer mask 8 evaporation layer of silicon dioxide insulation course 14, as the dielectric substrate of sensor, thus completing steps 1; Step 2 21 is according to film thermocouple copper coating mask 9 evaporation thin film thermopair copper coating 15 on silicon dioxide insulating layer 14; Equally, step 3 22 is according to film thermocouple nickel coating mask 10 evaporation thin film thermopair nickel coating 16 on silicon dioxide insulating layer 14; Wherein, film thermocouple copper coating and film thermocouple nickel coating constitute film thermocouple, to realize the measurement of temperature; Step 4 23 is according to silicon dioxide layer of protection mask 11 evaporation layer of silicon dioxide protective seam 17 above film thermocouple copper coating 15 and film thermocouple nickel coating 16; On the basis of step 4, above silicon dioxide layer of protection 17, measure copper coating mask 12 evaporation one Lyer current density according to current density measure copper coating 18 completing steps 5 24; Step 6 25 is measure above copper coating 18 in current density to measure gold plate mask 13 evaporation one Lyer current density measurement gold plate 19 according to current density; Wherein, current density measures copper coating 18 and current density measurement gold plate 19 is overlapped, constitutes current density and measures the coat of metal 28, achieve the measurement of current density; Form temperature-current density translocation sensor by above step, external metering circuit and data acquisition equipment can realize the synchro measure to fuel battery inside temperature and electric current distribution.
Wherein, the film thermocouple copper coating 15 that step 2 21 and step 3 22 complete and film thermocouple nickel coating 16 constitute film thermocouple, mutually overlap in the middle of it, lap-joint constitutes film thermocouple hot junction node 27, for the measurement of temperature, the shape of its coat of metal sets according to the shape of mask, also can be ellipse, arc, waveform, rhombus and other shape such as irregularly shaped, and the shape mutually after overlap joint can be arc, waveform, serrate etc.; The material of the film thermocouple coat of metal also can be tungsten and nickel, copper and cobalt, molybdenum and nickel, antimony and cobalt etc. substitute, and metal mixture material such as copper and constantan also can be adopted to substitute.The current density that step 5 24 and step 6 25 complete measures copper coating 18 and current density measurement gold plate 19 constitutes the current density measurement coat of metal 28, to realize the measurement of current density, its shape also can change according to the shape of mask, can be other shapes such as rectangle, ellipse, circle, triangle, trapezoidal, irregular figure.Film thermocouple wiring exit 26 and current density measure the same side that coat of metal wiring exit 29 can be arranged in silicon dioxide insulating layer 14, also the both sides being arranged in silicon dioxide insulating layer 14 that can be relative respectively, namely when film thermocouple wiring exit 26 is positioned at the upside of silicon dioxide insulating layer 14, current density measures the opposite side that coat of metal wiring exit 29 is arranged in the silicon dioxide insulating layer 14 relative with film thermocouple wiring exit 26, to facilitate the layout of sensor lead 5 on conductive substrate; The shape that film thermocouple wiring exit 26 and current density measure coat of metal wiring exit 29 not only can be the shape shown in Fig. 3, also can be made as other shapes such as ellipse, rectangle, trapezoidal, triangle.
With reference to shown in Fig. 4, the width of lead-in wire 5 is 0.1-0.2mm, amplifies in the edge of conductive substrate 1, forms pin 6, is connected to facilitate with external metering circuit and equipment.This lead-in wire adopts the four-level membrane of vacuum evaporation coating film method evaporation to form: ground floor is the lead-in wire silicon dioxide insulating layer 30 of thick 0.08-0.12 μm, the second layer is the lead-in wire copper coating 31 of thick 0.1-0.12 μm, third layer is the lead-in wire gold plate 32 of thick 0.1-0.12 μm, and most last layer is the lead-in wire silicon dioxide layer of protection 33 of thick 0.05-0.1 μm; Wherein, at pin 6 place not evaporation lead-in wire silicon dioxide layer of protection 33.
Fig. 5 is that the fuel battery inside temperature-current Density Distribution crack that interlocks measures the subjective schematic diagram of inserted sheet, crack 2 on its conductive substrate 1 and muscle 3 and the runner on staggered fluid flow on channel plate and ridge mutually corresponding, muscle 3 between two adjacent cracks 2 is furnished with temperature-current density translocation sensor 4, one end of lead-in wire 5 connects with the wiring exit of temperature-current density translocation sensor 4, the other end extends to the outward flange of conductive substrate 1 and amplifies formation pin 6, for the transmission of temperature-current density translocation sensor 4 electric signal.
Fig. 6 is that the snakelike single crack of fuel battery inside temperature-current Density Distribution measures the subjective schematic diagram of inserted sheet, crack 2 on its conductive substrate 1 and muscle 3 and the runner on snakelike single channel flow field and ridge mutually corresponding, muscle 3 between two adjacent cracks 2 is furnished with temperature-current density translocation sensor 4, one end of lead-in wire 5 connects with the wiring exit of temperature-current density translocation sensor 4, the other end extends to the outward flange of conductive substrate 1 and amplifies formation pin 6, for the transmission of temperature-current density translocation sensor 4 electric signal.
Fig. 7 is that fuel battery inside temperature-current Density Distribution snakelike pair of crack measures the subjective schematic diagram of inserted sheet, crack 2 on its conductive substrate 1 and muscle 3 and the runner in snakelike binary channels flow-field plate and ridge mutually corresponding, muscle 3 between two adjacent cracks 2 is furnished with temperature-current density translocation sensor 4, one end of lead-in wire 5 connects with the wiring exit of temperature-current density translocation sensor 4, the other end extends to the outward flange of conductive substrate 1 and amplifies formation pin 6, for the transmission of temperature-current density translocation sensor 4 electric signal.
Adopt fuel battery inside temperature-current Density Distribution of the present invention to measure inserted sheet, the distribution situation of synchronous on-line measurement fuel battery inside temperature and current density can be realized easily; This measurement mechanism and tested fuel cell are independently, do not need to carry out special transformation to the structure of fuel cell, structure is simple, easy to make, usable range is wide, the measurement of individual fuel cells internal temperature and electric current distribution can be realized, also can realize the measurement of fuel cell pack internal temperature and current density.
Claims (8)
1. fuel battery inside temperature-current Density Distribution measures inserted sheet, comprises conductive substrate (1), crack (2), muscle (3), temperature-current density translocation sensor (4), lead-in wire (5), pilot hole (7); Described crack (2), muscle (3) are arranged on conductive substrate (1), muscle (3) is positioned between two adjacent cracks (2), crack (2) is identical with the shape and size of ridge with fuel cell flow field board upper runner respectively with the shape and size of muscle (3), and crack (2) is corresponding with fuel cell flow field board runner and ridge respectively with the position of muscle (3); It is characterized in that: described temperature-current density translocation sensor (4) is arranged on muscle (3); One end of lead-in wire (5) connects with the wiring exit of temperature-current density translocation sensor (4), and the other end extends to the edge of conductive substrate (1) and amplifies formation pin (6); Pilot hole (7) is symmetrical, be evenly arranged on conductive substrate (1) surrounding, in order to be fixed on fuel cell flow field board by conductive substrate (1); During fuel cell assembling, temperature-current Density Distribution is measured inserted sheet and is arranged in the middle of fuel cell flow field board and membrane electrode, its be provided with temperature-current density translocation sensor (4) facing to membrane electrode side also close contact with it;
Described temperature-current density translocation sensor (4) is adopt six layer films of vacuum evaporation coating film method evaporation on muscle (3): ground floor is that evaporation thick layer is the silicon dioxide insulating layer (14) of 0.08-0.12 μm on muscle (3); The second layer is evaporation at the upper thick film thermocouple copper coating (15) for 0.1-0.12 μm of silicon dioxide insulating layer (14); Third layer is evaporation at the upper thick film thermocouple nickel coating (16) for 0.1-0.12 μm of silicon dioxide insulating layer (14); The shape of described film thermocouple copper coating (15) and film thermocouple nickel coating (16) is strip, mesophase spherule lap connects, lap-joint forms film thermocouple hot junction node (27), and head end is film thermocouple wiring exit (26); 4th layer is the thick silicon dioxide layer of protection (17) for 0.08-0.12 μm of evaporation above the film thermocouple coat of metal; Layer 5 is measure copper coating (18) in the thick current density for 1.5-2.0 μm of silicon dioxide layer of protection (17) top evaporation; Layer 6 is measure the thick current density for 0.1-0.12 μm of evaporation above copper coating (18) in current density to measure gold plate (19); Described current density measures copper coating (18) and current density measurement gold plate (19) is overlapped, and head end is that current density measures coat of metal wiring exit (29);
Described film thermocouple wiring exit (26) and current density are measured coat of metal wiring exit (29) and are all made into circle, and are all arranged in the same side of silicon dioxide insulating layer (14).
2. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: the shape of described conductive substrate (1) can be made into square, circular, polygon, trapezoidal, triangle, irregular figure.
3. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: the shape of the upper crack (2) of described conductive substrate (1) can be snakelike crack, parallel crack, poroid crack, staggered crack.
4. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: the film thermocouple coat of metal material be made up of copper and mickel in described temperature-current density translocation sensor (4) can also select tungsten and nickel, copper and cobalt, molybdenum and nickel, antimony and cobalt to substitute, metal mixture material such as copper and constantan also can be adopted to substitute.
5. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: in described temperature-current density translocation sensor (4), the shape of film thermocouple copper coating and film thermocouple nickel coating sets according to the shape of mask, its shape can also be ellipse, arc, waveform, rhombus and irregularly shaped, and the shape mutually after overlap joint can be arc, waveform, serrate.
6. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: in described temperature-current density translocation sensor (4), the shape of the current density measurement coat of metal (28) sets according to the shape of mask, its shape can be square, circular, oval, trapezoidal.
7. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: the both sides being arranged in silicon dioxide insulating layer (14) that described film thermocouple wiring exit (26) and current density measurement coat of metal wiring exit (29) can be relative respectively, its shape also can be ellipse, rectangle, trapezoidal, triangle.
8. fuel battery inside temperature-current Density Distribution according to claim 1 measures inserted sheet, it is characterized in that: the width of described lead-in wire (5) is 0.1-0.2mm, amplify in the edge of conductive substrate (1), form pin (6);
Lead-in wire (5) adopts the four-level membrane of vacuum evaporation coating film method evaporation to form, ground floor is the lead-in wire silicon dioxide insulating layer (30) of thick 0.08-0.12 μm, the second layer is the lead-in wire copper coating (31) of thick 0.1-0.12 μm, third layer is the lead-in wire gold plate (32) of thick 0.1-0.12 μm, and most last layer is the lead-in wire silicon dioxide layer of protection (33) of thick 0.05-0.1 μm; Wherein, at pin (6) place not evaporation lead-in wire silicon dioxide layer of protection (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410636187.4A CN104359571A (en) | 2014-11-05 | 2014-11-05 | Fuel cell internal temperature-current density distribution measurement male tab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410636187.4A CN104359571A (en) | 2014-11-05 | 2014-11-05 | Fuel cell internal temperature-current density distribution measurement male tab |
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| CN104359571A true CN104359571A (en) | 2015-02-18 |
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| CN201410636187.4A Pending CN104359571A (en) | 2014-11-05 | 2014-11-05 | Fuel cell internal temperature-current density distribution measurement male tab |
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| CN110243488A (en) * | 2019-06-25 | 2019-09-17 | 西安交通大学 | The plug-in type film thermocouple and preparation method thereof of real-time measurement hydrogen fuel cell internal temperature |
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Application publication date: 20150218 |