CN102655237B - Method and device for compositing fuel cell membrane electrode component - Google Patents
Method and device for compositing fuel cell membrane electrode component Download PDFInfo
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- CN102655237B CN102655237B CN201210121505.4A CN201210121505A CN102655237B CN 102655237 B CN102655237 B CN 102655237B CN 201210121505 A CN201210121505 A CN 201210121505A CN 102655237 B CN102655237 B CN 102655237B
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- Y02E60/30—Hydrogen technology
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Abstract
The invention discloses a method and a device for compositing a fuel cell membrane electrode component. The method comprises the following steps of: measuring the deflection angle of a GDL (gas diffusion layer) and the deflection angle of a catalyst layer by virtue of a machine vision technology, and guiding a mechanical arm to correct the rotating error of the GDL according to the angle difference value; and measuring and computing the X-directional and Y-directional errors from the intersection point coordinate of two edges of the GDL to the visual field center of a GDL image shooting camera after the errors are corrected, measuring and computing the X-directional and Y-directional errors from the intersection point coordinate of two edges of the catalyst layer to the visual field center of a catalyst layer image shooting camera, and in combination with the mechanical installing positions of the two cameras, computing the position integrated error between the GDL and the catalyst layer, wherein the integrated error is used for guiding the mechanical arm to accurately composite the GDL and the catalyst layer.
Description
Technical field
The present invention relates to fuel cell membrane electrode equipment complex technical field, relate in particular to a kind of complex method and device thereof of fuel cell membrane electrode assembly, the present invention has been used for the laminating of fuel cell membrane electrode assembly proton gas diffusion layers and catalyst layer.
Background technology
Fuel cell membrane electrode assembly (MEA, Membrane Electrode Assembly) mainly by proton gas diffusion layers and catalyst layer, formed, be the core component of realizing Proton Exchange Membrane Fuel Cells electrochemical reaction, determining the performance of fuel cell.The effect of gas diffusion layers (GDL, Gas Diffusion Layer) is that anode and negative electrode provide fuel and oxidant equably, discharges the water of negative electrode generation simultaneously and carries out charge transfer.Catalyst layer (CL, Catalyst Layer) is the place that chemical reaction occurs, anode generation oxidation reaction, negative electrode generation reduction reaction.The laminated quality of GDL and catalyst layer has directly affected the performance of fuel cell.
In current existing preparation technology, its groundwork is all to complete by craft, makes that not only efficiency is low, cost is high by hand, and the homogeneity of product of making can not be guaranteed.This has limited the business application of Proton Exchange Membrane Fuel Cells greatly.Due to the tight demand in market, thereby promoted to have the development of high reliability, high-precision automation equipment.
Summary of the invention
The complex method that the object of the present invention is to provide a kind of fuel cell membrane electrode assembly, it is high that the method has repetitive positioning accuracy, and reliable and stable feature can make GDL be attached to accurately on catalyst layer; The present invention also provides the device of realizing the method.
The complex method of a kind of fuel cell membrane electrode assembly provided by the invention, is characterized in that, the method specifically comprises the steps:
(1), measure the drift angle α on a limit of GDL and the drift angle β of catalyst layer corresponding sides in fuel cell membrane electrode assembly;
(2), according to the drift angle that records, rotation GDL β-α degree, equates the drift angle of GDL and the drift angle of catalyst layer;
(3), utilize GDL to adopt figure collected by camera GDL image, and at two edges of GDL image, a surveyed area is respectively set, calculate respectively slope and the intercept of two edges in region with respect to image coordinate system, thereby determined the equation in coordinates of two straight lines, the equation in coordinates of two straight lines of simultaneous is obtained the intersecting point coordinate (x at two edges of GDL
1, y
1); Utilize catalyst layer to adopt the image of figure collected by camera catalyst layer, the intersecting point coordinate (x at two edges detecting catalyst layer of making to use the same method
2, y
2);
(4), calculate the intersecting point coordinate (x at two edges of GDL
1, y
1) apart from GDL, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
1, Δ y
1), the intersecting point coordinate (x at calculating two edges of catalyst layer
2, y
2) apart from catalyst layer, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
2, Δ y
2);
Suppose that GDL adopts center, the figure camera visual field and catalyst layer and adopts center, the figure camera visual field and differ Δ x in x direction position
3, in y direction, differ Δ y
3, GDL to be attached to accurately from adopting figure position the catalyst layer of detected same physical dimension, the distance that need move at directions X is Δ x=Δ x
2-Δ x
1+ Δ x
3, the distance that Y-direction need move is Δ y=Δ y
2-Δ y
1+ Δ y
3;
(5), by GDLX and Y-direction mobile Δ x and Δ y respectively, thereby GDL is attached to the catalyst layer of detected same physical dimension accurately from adopting figure position.
As the improvement of technique scheme, in step (3), utilize edge detection operator and least square method to calculate edge in two regions slope and the intercept with respect to image coordinate system.
Above-mentioned GDL adopts center, the figure camera visual field and catalyst layer and adopts figure camera and all demarcate, and determines pixel coordinate system separately of two cameras and the relation of world coordinate system, and corrects its distortion.
The set composite of fuel cell membrane electrode assembly provided by the invention, is characterized in that, this device comprises computer, and catalyst layer is adopted figure camera, back light, and the GDL that camera lens is housed adopts figure camera, strip source, multi freedom degree mechanical hand;
Described back light and catalyst layer are adopted figure camera and are installed on the first support, the below that back light is arranged on catalyst layer adopts figure camera, article two, strip source and GDL adopt figure camera and are installed on the second support, and the both sides that two strip source symmetry is arranged on GDL and adopts figure camera, the first support and the second support all can vertical and Level tunes, catalyst layer adopts that figure camera, GDL are adopted figure camera, multi freedom degree mechanical hand is connected with computer by data wire, and computer is used for controlling multi freedom degree mechanical hand and carries out data processing.
Compound tense, the top that GDL is positioned at GDL and adopts figure camera and strip source, catalyst layer be positioned at catalyst layer adopt the below of figure camera and back light directly over.
Good effect of the present invention is:
1. by the present invention, can calculate the position Synthesis deviation of GDL and catalyst layer, then guide robot movement, thereby GDL is accurately attached on catalyst layer.
2. fuel cell membrane electrode assembly set composite, has adopted machine vision technique, and this technology is a kind of contactless metering system, can guarantee that catalyst layer is not contaminated, can guarantee enough certainties of measurement and measuring speed simultaneously.
Accompanying drawing explanation
Fig. 1 is fuel cell membrane electrode assembly set composite schematic diagram;
Fig. 2 is fuel cell membrane electrode equipment complex visual-alignment flow chart;
Fig. 3 is fuel cell membrane electrode equipment complex GDL Corner Detection schematic diagram.
Embodiment
The complex method of a kind of fuel cell membrane electrode assembly provided by the invention, first demarcates camera, demarcates the relation of pixel coordinate separately of two cameras system and world coordinate system, corrects and distorts; One of them is referred to as GDL and adopts figure camera for gathering the image of GDL, and another is referred to as catalyst layer and adopts figure camera for gathering the image of catalyst layer; The method specifically comprises the steps:
The drift angle α on a limit of GDL and the drift angle β of catalyst layer corresponding sides in S1, mensuration fuel cell membrane electrode assembly;
The drift angle that S2, basis record, rotation GDL β-α degree, equates the drift angle of GDL and the drift angle of catalyst layer;
The image of S3, re-using collected by camera GDL and catalyst layer, and at two edges of GDL image, 1 surveyed area is respectively set, calculate edge in two regions slope and the intercept with respect to image coordinate system, thereby determined the equation in coordinates of two straight lines, the equation in coordinates of two straight lines of simultaneous just can be obtained the intersecting point coordinate (x at two edges of GDL
1, y
1); Intersecting point coordinate (the x at two edges that detect catalyst layer makes to use the same method
2, y
2);
The edge calculating in two regions can utilize edge detection operator and least square method with respect to slope and the intercept of image coordinate system, also can adopt other the whole bag of tricks in prior art to calculate.
Intersecting point coordinate (the x at S4, calculating two edges of GDL
1, y
1) apart from GDL, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
1, Δ y
1), the intersecting point coordinate (x at calculating two edges of catalyst layer
2, y
2) apart from catalyst layer, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
2, Δ y
2);
Suppose that GDL adopts center, the figure camera visual field and catalyst layer and adopts center, the figure camera visual field and differ Δ x in x direction position
3, in y direction, differ Δ y
3, GDL to be attached to accurately from adopting figure position the catalyst layer of detected same physical dimension, the distance that need move at directions X is Δ x=Δ x
2-Δ x
1+ Δ x
3, the distance that Y-direction need move is Δ y=Δ y
2-Δ y
1+ Δ y
3;
S5, by GDLX and Y-direction mobile Δ x and Δ y respectively, thereby GDL is attached to the catalyst layer of detected same physical dimension accurately from adopting figure position.
As shown in Figure 1, apparatus of the present invention comprise the computer 1 of integrated image process software and motion control, for detection of the catalyst layer of catalyst layer, adopt figure camera 2, back light 5, the GDL for detection of GDL that camera lens is housed adopts figure camera 6, strip source 7, multi freedom degree mechanical hand 9.
Described back light 5 be arranged on catalyst layer adopt figure camera 2 under, this light source and camera be fixed on can be vertical and the support of Level tune on, article two, the both sides that strip source 7 symmetries are arranged on GDL and adopt figure camera 6, this light source and camera be fixed on another can be vertical and the support of Level tune on, two supports are arranged on fuel cell membrane electrode assembly equipment complex, and catalyst layer is adopted figure camera 2, GDL adopts figure camera 6, for compound multi freedom degree mechanical hand 9, by data wire, is connected with computer 1.The top that detected GDL8 is positioned at GDL and adopts figure camera 6 and strip source 7, detected catalyst layer 3 be positioned at catalyst layer adopt the below of figure camera 2 and back light 5 directly over.Catalyst layer 3 is coated on transparent membrane 4 uniformly, and the catalyst layer physical dimension on same film is identical with spacing.
As shown in Figure 2, catalyst layer 3 is coated on transparent membrane 4 uniformly, and the catalyst layer physical dimension on same film is identical with spacing.The below that catalyst layer 3 is arranged on to catalyst layer and adopts figure camera 2, utilize back light 5 to throw light on, catalyst layer is adopted figure camera 2 and obtains the image of catalyst layer 3, and by data wire by image transmitting to computer 1, computer 1 calculates the drift angle β of catalyst layer 3 by the image processing software carrying, GDL8 be arranged on GDL adopt figure camera 6 directly over, and utilize strip source 7 to throw light on, GDL adopts figure camera 6 and obtains the image of GDL8, and by data wire by image transmitting to computer 1, computer 1 calculates the drift angle α of GDL8 by the image processing software carrying, computer 1 is controlled manipulator 9 and is made GDL rotation β-α degree, the drift angle of GDL and the drift angle of catalyst layer are equated.Image, the GDL that catalyst layer is adopted figure camera 2 Resurvey GDL8 adopts the image of figure camera 6 Resurvey catalyst layers 3, two cameras arrive computer 1 by data wire by image transmitting, computer 1 calculates the distance, delta x that manipulator 9 should move at directions X, the distance, delta y that Y-direction should move.Computer 1 is controlled manipulator 9 and is moved Δ x at directions X, in Y-direction, moves Δ y, by GDL8 from industrial camera 3 adopt figure position, be attached to accurately on catalyst layer 3, thereby catalyst layer 3 overlapped with GDL8.
Manipulator 9 can adopt the various degrees of freedom to be no less than 3 multi freedom degree mechanical hand.
Above content is the further description of the present invention being done in conjunction with concrete embodiment; can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. a complex method for fuel cell membrane electrode assembly, is characterized in that, the method specifically comprises the steps:
(1), measure the drift angle α on a limit of GDL and the drift angle β of catalyst layer corresponding sides in fuel cell membrane electrode assembly;
(2), according to the drift angle that records, rotation GDL β-α degree, equates the drift angle of GDL and the drift angle of catalyst layer;
(3), utilize GDL to adopt figure collected by camera GDL image, and at two edges of GDL image, a surveyed area is respectively set, calculate respectively slope and the intercept of two edges in region with respect to image coordinate system, thereby determined the equation in coordinates of two straight lines, the equation in coordinates of two straight lines of simultaneous is obtained the intersecting point coordinate (x at two edges of GDL
1, y
1); Utilize catalyst layer to adopt the image of figure collected by camera catalyst layer, the intersecting point coordinate (x at two edges detecting catalyst layer of making to use the same method
2, y
2);
(4), calculate the intersecting point coordinate (x at two edges of GDL
1, y
1) apart from GDL, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
1, Δ y
1), the intersecting point coordinate (x at calculating two edges of catalyst layer
2, y
2) apart from catalyst layer, adopt X and Y-direction deviation (the Δ x at center, the figure camera visual field
2, Δ y
2);
Suppose that GDL adopts center, the figure camera visual field and catalyst layer and adopts center, the figure camera visual field and differ Δ x in x direction position
3, in y direction, differ Δ y
3, GDL to be attached to accurately from adopting figure position the catalyst layer of detected same physical dimension, the distance that need move at directions X is Δ x=Δ x
2-Δ x
1+ Δ x
3, the distance that Y-direction need move is Δ y=Δ y
2-Δ y
1+ Δ y
3;
(5), by GDL at X and Y-direction mobile Δ x and Δ y respectively, thereby GDL is attached to the catalyst layer of detected same physical dimension accurately from adopting figure position.
2. the complex method of fuel cell membrane electrode assembly according to claim 1, is characterized in that, in step (3), utilizes edge detection operator and least square method to calculate edge in two regions slope and the intercept with respect to image coordinate system.
3. the complex method of fuel cell membrane electrode assembly according to claim 1 and 2, it is characterized in that, GDL adopts center, the figure camera visual field and catalyst layer and adopts figure camera and all demarcate, and determines pixel coordinate system separately of two cameras and the relation of world coordinate system, and corrects its distortion.
4. a set composite for fuel cell membrane electrode assembly, is characterized in that, this device comprises computer, and catalyst layer is adopted figure camera, back light, and the GDL that camera lens is housed adopts figure camera, strip source, multi freedom degree mechanical hand;
Described back light and catalyst layer are adopted figure camera and are installed on the first support, the below that back light is arranged on catalyst layer adopts figure camera, article two, strip source and GDL adopt figure camera and are installed on the second support, and the both sides that two strip source symmetry is arranged on GDL and adopts figure camera, the first support and the second support all can vertical and Level tunes, catalyst layer adopts that figure camera, GDL are adopted figure camera, multi freedom degree mechanical hand is connected with computer by data wire, and computer is used for controlling multi freedom degree mechanical hand and carries out data processing.
Priority Applications (1)
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|---|---|---|---|
| CN201210121505.4A CN102655237B (en) | 2012-04-23 | 2012-04-23 | Method and device for compositing fuel cell membrane electrode component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121505.4A CN102655237B (en) | 2012-04-23 | 2012-04-23 | Method and device for compositing fuel cell membrane electrode component |
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| Publication Number | Publication Date |
|---|---|
| CN102655237A CN102655237A (en) | 2012-09-05 |
| CN102655237B true CN102655237B (en) | 2014-05-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040042789A1 (en) * | 2002-08-30 | 2004-03-04 | Celanese Ventures Gmbh | Method and apparatus for transferring thin films from a source position to a target position |
| JP4324442B2 (en) * | 2003-10-16 | 2009-09-02 | Ｊｕｋｉ株式会社 | Component data generation device and electronic component mounting device |
| CN1828985A (en) * | 2006-02-27 | 2006-09-06 | 南京博能燃料电池有限责任公司 | Device for manufacturing fuel cell membrane electrode assembly |
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