CN207463949U - The punching press sectional die of the metal flow field plate of Proton Exchange Membrane Fuel Cells - Google Patents
The punching press sectional die of the metal flow field plate of Proton Exchange Membrane Fuel Cells Download PDFInfo
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- CN207463949U CN207463949U CN201721149354.8U CN201721149354U CN207463949U CN 207463949 U CN207463949 U CN 207463949U CN 201721149354 U CN201721149354 U CN 201721149354U CN 207463949 U CN207463949 U CN 207463949U
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- flow field
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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 metal double polar plates punching press sectional die of one proton exchanging film fuel battery, including flow field punch forming convex module and flow field punch forming female die block, in being respectively provided with corresponding location hole on flow field punch forming convex module and flow field punch forming female die block.Punch forming convex module in flow field has flow field punch forming punch-pin that is multiple identical or differing size, identical or different flow field patterns；And punch forming female die block in flow field has flow field punch forming cavity plate that is multiple identical or differing size, identical or different flow field patterns, and flow field punch forming cavity plate that is each identical or differing size, identical or different flow field patterns is with flow field punch forming punch-pin that is corresponding identical or differing size, the identical or different flow field patterns, thereby, to solve in the prior art, simulation is different from data during actual test, data when only need to be according to actual test take corresponding flow field patterns and size, reduce the cost for opening molding jig.
Description
Technical field
The utility model is to disclose a proton exchanging film fuel battery, is handed in particular to one kind to make proton
Change the punching press sectional die of the metal flow field plate of membrane cell.
Background technology
Fuel cell is a kind of directly to convert fuel by the electrocatalytic reaction on electrode with the chemical energy in oxidant
Power generator for electric energy.Fuel cell is mainly made of membrane electrode (MEA) and bipolar plates, and wherein membrane electrode is fuel cell
Core, bipolar plates be battery important composition part, play in a fuel cell collected current, gas distribution and water management,
The effect of heat management.There are many kinds of the types of bipolar plates, and the bipolar plates of generally use are Machined graphite bipolar plates, technology
Comparative maturity, but processing charges is expensive, is mainly used in testing indoor experimental study.For at present, fuel battery double plates
Research be concentrated mainly on soft graphite bipolar plates (and injection graphite bi-polar plate), metal double polar plates and combined dual-polar plate.By
Have many advantages, such as that conductive, thermal conductivity is good, the processing of high mechanical strength, easy sheet, easy processing becomes fuel electricity in metal material
One of pond bipolar plate material.
In the prior art, the groove structure on metal double polar plates or title flow field are to use the direct punch forming of mold,
But the prior art it is this directly stamping forming metal flow field plate can due to punching course in pressure be unevenly distributed, make
It obtains metallic plate and generates inconsistent extension, so as to stress inconsistent under metallic plate internal residual, this inconsistent stress
Flow-field plate after molding can be made to generate non-uniform deformation.
In addition, in the prior art, the base materials of metal double polar plates is mostly titanium, data during simulation may and actual test
Difference so as to adjust the shape and size in flow field, to readjust, then needs again to mold mold, must spend compared with
High cost.
Utility model content
The main purpose of the utility model is that provide the metal double polar plates punching press group of a proton exchanging film fuel battery
Box-like mold, by the way of module, by different sizes, different flow field patterns or identical size, the stream of identical flow field patterns
Punch forming convex module and flow field punch forming female die block are combined, with the concept of combination come reduce out molding jig into
This.
The another object of the utility model is to provide the metal double polar plates punching press group of a proton exchanging film fuel battery
Box-like mold can solve in the prior art, and simulation is different from data during actual test, it is only necessary to during according to actual test
Data take corresponding flow field patterns and size, and need not open molding jig again, reduce the cost for opening molding jig.
According to above-mentioned purpose, the utility model provides the metal double polar plates punching press combination of a proton exchanging film fuel battery
Formula mold, including flow field punch forming convex module and flow field punch forming female die block, in flow field punch forming convex module and flow field
Corresponding location hole is respectively provided on punch forming female die block, punch forming convex module in flow field has multiple identical or differs
The flow field punch forming punch-pin of size, identical or different flow field patterns, and each is identical or differ size, identical or different
The flow field punch forming punch-pin of flow field patterns can be combined arbitrarily；And punch forming female die block in flow field has multiple identical or not phase
The flow field punch forming cavity plate of same size, identical or different flow field patterns, and each is identical or differ size, identical or not
Flow field punch forming cavity plate with flow field patterns can be combined arbitrarily, and each is identical or differ size, identical or different stream
The flow field punch forming cavity plate of shape has corresponding identical or differs size, the identical or different flow field patterns
Flow field punch forming punch-pin.
Wherein, die sinking in advance makes the flow field of multiple flow field structures with identical or different same sizes and/or shapes
Punch forming punch-pin or flow field punch forming cavity plate, data during according to actual test, by different sizes, different flow field patterns
Or the flow field punch forming convex module and flow field punch forming female die block of identical size, identical flow field patterns are combined.
Description of the drawings
Fig. 1 is the metal double polar plates punching press sectional die side view according to one embodiment of the utility model.
Fig. 2 to Fig. 5 is that have different flow field patterns side views according to the punching press sectional die of one embodiment of the utility model
Figure.
Fig. 6 is that the punching press sectional die with different flow field patterns is combined into punching according to one embodiment of the utility model
The vertical view of pressure combined mold group.
Fig. 7 is to be combined two stamping dies with different flow field patterns and size according to one embodiment of the utility model
Vertical view.
Specific embodiment
In order to make the purpose of this utility model, technical characteristic and advantage, can more correlative technology field personnel understood, and
The utility model is carried out, coordinates appended schema herein, specifically illustrate the technical characteristics of the utility model and embodiment,
And enumerate preferred embodiment further explanation.It is related with the utility model feature to express with the schema hereinafter compareed
Signal does not also need to completely draw according to practical situation.And about this field skill involved in the explanation of this case embodiment
Technology contents known to art personnel, are also no longer stated.
First, it please refers to Fig.1.Fig. 1 is according in one embodiment of the utility model, represents metal double polar plates punching press combined type
Mold side view.Punching press sectional die includes flow field punch forming convex module 10 and flow field punch forming female die block in Fig. 1
20, metal double polar plates 30 are arranged between flow field punch forming convex module 10 and flow field punch forming female die block 20.Wherein flowing
Field punch forming convex module 10 has flow field punch forming punch-pin 102, and multiple recessed in having on flow field punch forming punch-pin 102
The flow field structure 1022 of convex.Flow field punch forming female die block 20 has flow field punch forming cavity plate 202 and is struck out in flow field
Have on type cavity plate 202 corresponding multiple with multiple concavo-convex flow field structures 1022 on flow field punch forming punch-pin 102
Concavo-convex flow field structure 2022 is convex when having multiple concavo-convex flow field structures 1022 on flow field punch forming punch-pin 102
Multiple concavo-convex flow field structures 2022 during shape, then on flow field punch forming cavity plate 202 are concavity, and when flow field strikes out
When type punch-pin 102 and flow field punch forming cavity plate 202 are placed face-to-face, mutual structure is to correspond and can be mutually embedding
It closes.It is noted that the length of flow field punch forming convex module 10 and flow field punch forming female die block 20 (is laterally come with drawing
Saying) L3 is more than the length L2 of metal double polar plates 20, and on flow field punch forming punch-pin 102 and flow field punch forming cavity plate 202
Multiple concavo-convex flow field structures 2022 and 1022 are actually then less than gold in the formation of metal double polar plates 30 flow field length L3
Belong to the length L2 for saying pole plate 30.In addition, the length L2 of metal double polar plates 30 is less than the flow field punch forming of punching press sectional die
The length of convex module 10 and flow field punch forming female die block 20 be can by metal double polar plates 30 completely by clamping in flow field punching press
Between forming convax mould block 10 and flow field punch forming female die block 20, thus during punching press molding, metal double polar plates 30
Side will not generate warpage.In addition it can also avoid because the stress intensity for granting punching press sectional die is different so that gold
Belong to 30 unbalance stress of bipolar plates, in the flow field structure that metal double polar plates 30 are formed error.It is noted that metal bipolar
Plate 30 is made of anode plate and cathode plate, and the mode that welding may be used links combination or uses caulking gum by two electricity
Pole plate is sealed against one another, wherein, caulking gum can be polyethylene terephthalate (PET, polyethylene
Terephthalate) or polyethylene naphthalate (PEN, poly (ethylene naphtalate)), melted by heat
Or the mode of bonding, metal double polar plates 30 and caulking gum is made to form one, plays sealing function.However, metal double polar plates 30
Detailed construction and function be not to be seldom described herein herein for the technical characteristics of the utility model.
In addition, it is opposite to be additionally provided with position in flow field punch forming convex module 10 and the flow field punch forming female die block 20
The location hole (not shown in the figure) answered, and positioning column (not shown in the figure) is additionally provided in each location hole so that stream
Field punch forming convex module 10 and flow field punch forming female die block 20 can be aligned with each other and position, due to metal double polar plates 30
On have with the 20 corresponding location hole in position of flow field punch forming convex module 10 and flow field punch forming female die block, therefore
Metal double polar plates 30 when in the middle, do not have by flow field punch forming convex module 10 and 20 clamping of flow field punch forming female die block
The problem of displacement, and the region that flow field can be formed to being preset on metal double polar plates 30 carries out punch process processing procedure.
Then, it please refers to Fig.2 to Fig. 5.Fig. 2 to Fig. 5 is an embodiment according to the present utility model, represents metal double polar plates
In punching press sectional die, the side view of the various flow field structures on flow field punch forming punch-pin.It is to use in Fig. 2 to Fig. 5
The concept of module, therefore can mold in advance and make multiple flow field structures with identical or different same sizes and/or shapes
Flow field punch forming punch-pin (or flow field punch forming cavity plate), wherein as Fig. 2 embodiment in, flow field punch forming is convex
Flow field structure on mould 102 is the concaveconvex structure 1022 of rectangular saw-tooth shape.In the embodiment of Fig. 3, flow field punch forming punch-pin 106
On flow field structure be elongated rectangular shape convex architecture 1062.In the embodiment of Fig. 4, the stream on flow field punch forming punch-pin 108
Field structure is wavelike structure 1082.In the embodiment of Fig. 5, the flow field structure on flow field punch forming punch-pin 110 is triangle
Jagged concaveconvex structure 1102.In addition to illustrate that merely illustrate herein flow field punch forming punch-pin 102,104,106,
Flow field structure 1022,1042,1062,1082 on 108, due on flow field punch forming cavity plate (not represented in Fig. 2-Fig. 5)
Flow field structure be with the flow field structure 1022,1042,1062,1082 on flow field punch forming punch-pin 102,104,106,108
It is corresponding, by taking Fig. 3 as an example, convex architecture of the flow field structure for elongated rectangular shape on flow field punch forming punch-pin 106, therefore phase
Flow field punch forming cavity plate (not shown in the figure) corresponding to flow field punch forming punch-pin 106 is the concavity knot of elongated rectangular shape
Structure (not shown in the figure), width and length dimension are elongated rectangular shape with the flow field structure on flow field punch forming punch-pin 106
Convex architecture 1062 it is identical, therefore the flow field punch forming punch-pin 102,104,108 in Fig. 2, Fig. 4 and Fig. 5 also have phase
Corresponding flow field punch forming cavity plate is not repeated to state herein.
Next referring to Fig. 6.Fig. 6 represents the punching press sectional die with different flow field patterns being combined into punching press combination
The vertical view of formula set of molds.In figure 6, by the flow field punch forming punch-pin 106 and 108 of two different flow field patterns with transverse direction
Mode is combined, to form stamping die group.In this embodiment, the flow field structure on flow field punch forming punch-pin 106
For elongated rectangular shape convex architecture 1062, the flow field structure on another flow field punch forming punch-pin 108 is wavelike structure 1082,
The width W1 of each elongated rectangular shape convex architecture 1062 wherein on flow field punch forming punch-pin 106 can be identical or not
Together and the width W2 between adjacent two elongated rectangular shape convex architectures 1062 can be identical or different, flow field structure width
The purpose of design is provided to allow fuel gas and oxidant gas can be completely anti-on the flow field of metal double polar plates
Should, the running efficiency so as to allow Proton Exchange Membrane Fuel Cells that can reach higher.
Then it is to be combined into flow field structure of different shapes in a longitudinal fashion to rush press combined type in another embodiment
Tool, as shown in Figure 7.In the figure 7, by different flow field structures and the combination of the flow field punch forming punch-pin 112 and 108 of size one
It rises, wherein the flow field structure on flow field punch forming punch-pin 108,112 is all wavelike structure 1082,1122, but in flow field
In wavelike structure 1082 on punch forming punch-pin 108, the spacing between the structure of the adjacent protrusion of each two is more than flow field
In wavelike structure 1122 on punch forming punch-pin 112, the spacing between the structure of the adjacent protrusion of each two.So that rushing
There will be the wavelike structures of two kinds of different heights for flow field patterns on metal double polar plates after pressure.
Summary, each flow field punch forming punch-pin 102 and each flow field punch forming in the utility model
Cavity plate 202 can be laterally and flow field structure parallel to each other or can be longitudinal direction and flow field structure parallel to each other, and in
It, can in the distance laterally or between adjacent two runner of longitudinal direction and flow field structure parallel to each other in another embodiment
With identical different and can be identical or not in the width of a plurality of runner laterally and on flow field structure parallel to each other
Together.
It is excellent to the utility model by for the flow field structure on flow field punch forming punch-pin and flow field punch forming cavity plate
Point be can according to current user need, respectively by the flow field punch forming of multiple identical or different flow field patterns
Punch-pin, female die block are combined or strike out multiple identical or various sizes of flow field punch forming punch-pin, flow field
Type female die block is combined, therefore, when simulation with actual test when data difference when, user can substitute, adjust at any time
A part of flow field punch forming punch-pin and its corresponding flow field punch forming cavity plate,
The foregoing is merely the preferred embodiments of the utility model, are not limited to the claim model of the utility model
It encloses；Above description simultaneously, should can understand and implement, therefore other without departing from this reality for the special personage of correlative technology field
With the lower equivalent change or modification completed of novel disclosed spirit, should be included in right.
Claims (8)
1. the metal double polar plates punching press sectional die of a proton exchanging film fuel battery, including flow field punch forming convex module
With flow field punch forming female die block, it is characterised in that:
The flow field punch forming convex module has flow field punching that is multiple identical or differing size, identical or different flow field patterns
Molded punch-pin, and it is each described identical or differ size, the flow field punch forming punch-pin of identical or different flow field patterns can
Arbitrary combination；And
The flow field punch forming female die block has flow field punching that is multiple identical or differing size, identical or different flow field patterns
Molded cavity plate, and it is each described identical or differ size, the flow field punch forming cavity plate of identical or different flow field patterns can
Arbitrary combination, and it is each identical or differ size, the flow field punch forming cavity plate of identical or different flow field patterns has
The flow field punch forming punch-pin that is corresponding described identical or differing size, the identical or different flow field patterns；
Wherein, die sinking in advance makes the flow field punching of multiple flow field structures with identical or different sizes and/or shapes
Molded punch-pin or the flow field punch forming cavity plate, data during according to actual test, by different sizes, different flow fields shape
Shape or identical size, the flow field punch forming convex module of the identical flow field patterns and flow field punch forming female die block into
Row combination.
2. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as described in claim 1, feature exist
In the size of the flow field punch forming convex module and the flow field punch forming female die block is more than dimension of flow field.
3. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as described in claim 1, feature exist
In each flow field punch forming convex module is lateral and flow field structure parallel to each other.
4. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as claimed in claim 3, feature exist
In the distance between adjacent two runner of the lateral and parallel to each other flow field structure is identical or different.
5. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as claimed in claim 3, feature exist
In the of same size or different of, a plurality of runner described lateral and on flow field structure parallel to each other.
6. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as described in claim 1, feature exist
In each flow field punch forming convex module is longitudinal direction and flow passage structure parallel to each other.
7. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as claimed in claim 6, feature exist
In the distance between adjacent two runner of the longitudinal direction and flow field structure parallel to each other is identical or different.
8. the metal double polar plates punching press sectional die of Proton Exchange Membrane Fuel Cells as claimed in claim 6, feature exist
In the of same size or different of, a plurality of runner of the longitudinal direction and flow field structure parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149354.8U CN207463949U (en) | 2017-09-08 | 2017-09-08 | The punching press sectional die of the metal flow field plate of Proton Exchange Membrane Fuel Cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149354.8U CN207463949U (en) | 2017-09-08 | 2017-09-08 | The punching press sectional die of the metal flow field plate of Proton Exchange Membrane Fuel Cells |
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| Publication Number | Publication Date |
|---|---|
| CN207463949U true CN207463949U (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721149354.8U Active CN207463949U (en) | 2017-09-08 | 2017-09-08 | The punching press sectional die of the metal flow field plate of Proton Exchange Membrane Fuel Cells |
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| CN (1) | CN207463949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993308A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Gradient snakelike flow field structure |
| DE102022203004A1 (en) | 2022-03-28 | 2023-09-28 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device, in particular punching press, for forming a metal sheet and method for producing a monopolar and/or bipolar plate |
-
2017
- 2017-09-08 CN CN201721149354.8U patent/CN207463949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993308A (en) * | 2019-12-14 | 2021-06-18 | 中国科学院大连化学物理研究所 | Gradient snakelike flow field structure |
| DE102022203004A1 (en) | 2022-03-28 | 2023-09-28 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device, in particular punching press, for forming a metal sheet and method for producing a monopolar and/or bipolar plate |
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