CN207781769U - A kind of bipolar plates, battery and automobile convenient for welding positioning - Google Patents
A kind of bipolar plates, battery and automobile convenient for welding positioning Download PDFInfo
- Publication number
- CN207781769U CN207781769U CN201820185170.5U CN201820185170U CN207781769U CN 207781769 U CN207781769 U CN 207781769U CN 201820185170 U CN201820185170 U CN 201820185170U CN 207781769 U CN207781769 U CN 207781769U
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- Prior art keywords
- bipolar plates
- convenient
- anchor point
- positioning
- welding positioning
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides a kind of bipolar plates convenient for welding positioning, including bipolar plates ontology, bipolar plates are equipped at least two anchor points, and the anchor point is arranged in bipolar plates body exterior, the anchor point is positioning convex ring or concave ring, and anchor point is connected as one with bipolar plates ontology.The utility model has the following advantages that：Positioning convex ring setting is not take up bipolar plates active region space in bipolar plates body exterior, improves bipolar plates active region efficiency.Positioning convex ring or concave ring are fitted by interference fit, will not be subjected to displacement；It in welding, is used cooperatively with matched clamp, positioning accuracy is high, clamping efficiency is high, and it is small to generate stress.
Description
Technical field
The utility model is related to a kind of hydrogen fuel cell technology, more particularly to a kind of hydrogen fuel cell bipolar plate structure.
Background technology
Bipolar plates are the important components of hydrogen fuel cell, play collected current, gas distribution and water management, heat management
Effect.Usually anode and cathode flow-field plate first is respectively prepared with sheet metal (thickness 0.1mm) in the manufacturing process of bipolar plates, so
The two is linked together afterwards, forms cooling liquid flowing channel among two plates.The sealing requirements of bipolar plates are very high, if poor sealing
Then reactive material and coolant liquid may leak, and will make battery performance decline or ineffective.The processing of connection positive and negative pole at present
Method is all made of welding manner, and compared to other Joining Technologies, laser welding is with weld seam is small, quality is high, good airproof performance, efficiency
High, the advantages that process costs are low, automation easy to implement is technique most potential during producing bipolar plates in batches.Laser
Weldering is mainly radiated at metal sheet surface by laser beam, upper layer light sheet material is melted, heat is transmitted to by heat transfer
Subsurface material forms molten bath after being allowed to fusing, and solidification forms weld seam.The welding of guarantee Dual-layer pole plate is needed in the process
Region gapless fits closely, and to ensure the normal transmission of heat, generates air layer barrier if there is gap, then be easy to cause
Problem of faulty soldering, therefore good positioning and clamping is very crucial between bipolar plates.
Current welding is located through the slot of the setting installation bipolar plates on bottom plate, and bipolar plates are placed in slot and position, will be upper
It is pressed in above, is welded on cover board.In order to keep clamping fastener, it is not subjected to displacement in welding, certain effect power is needed to add
Tightly, this can make to generate stress inside bipolar plates, deform upon after the cooling period, influence the bipolar plates service life after welding.Also have
By taking a picture to bipolar plates upper and lower position, positioned by the electron image registration of two plates, but such positioning side
Formula is excessively complicated, and location efficiency is not high, and cost is higher.Therefore, there is positioning in welding and be not allowed in existing bipolar plates, and position easily occurs
It moves, efficiency is low, the problems such as stress is generated in welding and influences bipolar plates reaction efficiency.
Invention content
The utility model provides a kind of bipolar plates convenient for welding positioning, to solve the problems, such as existing welding, and
Provide a kind of hydrogen fuel cell and new-energy automobile using the bipolar plate structure.Specific technical solution is as follows.
A kind of bipolar plates convenient for welding positioning, including bipolar plates ontology, bipolar plates are equipped at least two anchor points, institute
It is positioning protrusion or recess to state anchor point, and in bipolar plates body exterior, anchor point connects with bipolar plates ontology for the anchor point setting
It is connected in one.
Further, the protrusion is boss or bulge loop, and the recess is pit or concave ring.
Further, the anchor point is four.
Further, the anchor point is arranged in the quadrangle of bipolar plates.
Further, the positioning convex ring or concave ring are circle.
Further, the positioning convex ring of the bipolar plates or concave ring depth are 0.3--1mm.
Further, the bulge loop or concave ring are prominent for bulge loop to bipolar plates one side by punch forming, bulge loop or concave ring
Or be absorbed in for concave ring when, another side be corresponding concave ring or bulge loop.
Further, anchor point is structure as a whole with bipolar plates ontology by the setting of mould punching moulding process.
Further, the bipolar plates convenient for welding positioning are applied to hydrogen fuel cell.
Further, the hydrogen fuel cell applies to a kind of new-energy automobile.
Compared with prior art, the utility model has the beneficial effects that：
The utility model provides a kind of bipolar plates with positioning convex ring or concave ring, and positioning convex ring is arranged in bipolar plates sheet
Outside body, it is not take up bipolar plates active region space, improves active region efficiency.Positioning convex ring or concave ring will not be occurred by being fitted into
Displacement；It in welding, is used cooperatively with matched clamp, clamping efficiency is high, and fastening is compared in clamping, without outer force effect, is not generated
Stress.
Description of the drawings
Fig. 1 is bipolar plate structure figure；
Fig. 2 is bipolar plates anchor point structure chart.
Specific implementation mode
It is further illustrated the present invention with reference to specific embodiment.Unless stated otherwise, it is used in the embodiment of the present invention
The raw material and conventional use of method of raw material and method for this field regular market purchase.
Embodiment 1
A kind of bipolar plates convenient for welding positioning have close as shown in Figure 1, including bipolar plates ontology 1 on bipolar plates ontology 1
Seal area 2, air flow method area 3 and active region 4.Bipolar plates are set there are four anchor point 5, and anchor point is arranged outside bipolar plates ontology 1,
Anchor point 5 is connected as one with bipolar plates ontology 1 by bonding pad 6.Anchor point 5 is the boss of protrusion, and boss is by being molded into
Type is overleaf pit identical with bulge loop shape.Anchor point is arranged on four angles of bipolar plates.Projection shape is set as round,
Convenient for positioning and chimeric mutually, when being subjected to displacement, can rotate bipolar plates makes the two reset.The height of boss is 0.3mm.It is bipolar
When plate welds, two bipolar plates are overlapped, the bulge loop of a bipolar plates is embedded in the concave ring of another bipolar back, and bipolar plates are fixed
It is welded behind position.Since bipolar plates anchor point is arranged in bipolar plates body exterior, it has been not take up bipolar plates active area, it is living
Property area efficiency improve.Being set as bulge loop has the advantages that positioning is convenient, efficient.
Embodiment 2
A kind of bipolar plates convenient for welding positioning have close as shown in Fig. 2, including bipolar plates ontology 1 on bipolar plates ontology 1
Area 2 is sealed, gas distributes area 4 and active region 3.Bipolar plates are set there are two anchor point 5, and anchor point is arranged outside bipolar plates ontology 1,
Anchor point 5 is connected as one with bipolar plates ontology 1 by bonding pad 6.Anchor point 5 is the bulge loop 7 of protrusion, and bulge loop is by being molded into
Type is overleaf concave ring identical with bulge loop shape.Anchor point is arranged on two angles of bipolar plates.Projection shape is set as round,
Convenient for positioning and chimeric mutually, when being subjected to displacement, can rotate bipolar plates makes the two reset.The height of bulge loop is 1mm.Bipolar plates
When welding, two bipolar plates are overlapped, the bulge loop of a bipolar plates is embedded in the concave ring of another bipolar back, bipolar plates positioning
After welded.When anchor point is two, it is more advantageous to positioning in diagonal line distribution, anchor point is located at cornerwise two angles
For preferred embodiment.
Bipolar plates anchor point may be set to be concave ring or recess, be then corresponding bulge loop or boss in bipolar back,
Bipolar plates realize the two positioning after overlapping.
When the height or excessive depth of anchor point, bipolar plates intensity can be influenced, when undersized, when positioning is easy to happen partially
Move, bipolar plates be fitted into it is insecure, size be arranged between 0.3mm -1mm when, best results.
A kind of hydrogen fuel cell, using the bipolar plates of this kind of structure by being welded.
A kind of new-energy automobile, hydrogen fuel cell made of the bipolar plates adopted the structure.
Embodiment of above is the further explanation to the utility model, cannot function as limitations of the present invention, is answered
Work as understanding, the improvement and modification based on the invention both are within the protection scope of the present invention.
Claims (10)
1. a kind of bipolar plates convenient for welding positioning, including bipolar plates ontology, it is characterised in that bipolar plates are equipped at least two
Anchor point；The anchor point is arranged outside bipolar plates active region, and anchor point is connected as one with bipolar plates ontology；The positioning
Point is positioning protrusion or recess.
2. being convenient for the bipolar plates of welding positioning according to claim 1, it is characterised in that the protrusion is boss or bulge loop, institute
It is pit or concave ring to state recess.
3. being convenient for the bipolar plates of welding positioning according to claim 2, it is characterised in that the anchor point is four.
4. being convenient for the bipolar plates of welding positioning according to claim 3, it is characterised in that the anchor point is arranged in bipolar plates
Quadrangle.
5. being convenient for the bipolar plates of welding positioning according to claim 4, it is characterised in that the positioning convex ring or concave ring are circle
Shape.
6. according to claim 5 be convenient for welding positioning bipolar plates, it is characterised in that the positioning convex ring of the bipolar plates or
Concave ring depth is 0.3--1mm.
7. being convenient for the bipolar plates of welding positioning according to claim 4, it is characterised in that the bulge loop or concave ring pass through punching press
Molding, bulge loop or concave ring to bipolar plates one side it is prominent be bulge loop or be absorbed in for concave ring when, another side is corresponding concave ring or bulge loop.
8. being convenient for the bipolar plates of welding positioning according to claim 5, it is characterised in that anchor point passes through with bipolar plates ontology
The setting of mould punching moulding process is structure as a whole.
9. according to any bipolar plates convenient for welding positioning of claim 1-8, it is characterised in that be used for hydrogen fuel cell.
10. a kind of new-energy automobile, it is characterised in that using the hydrogen fuel cell described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185170.5U CN207781769U (en) | 2018-02-02 | 2018-02-02 | A kind of bipolar plates, battery and automobile convenient for welding positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185170.5U CN207781769U (en) | 2018-02-02 | 2018-02-02 | A kind of bipolar plates, battery and automobile convenient for welding positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781769U true CN207781769U (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820185170.5U Active CN207781769U (en) | 2018-02-02 | 2018-02-02 | A kind of bipolar plates, battery and automobile convenient for welding positioning |
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| CN (1) | CN207781769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193045A (en) * | 2020-01-02 | 2020-05-22 | 武汉中极氢能产业创新中心有限公司 | Bipolar plate of fuel cell and fuel cell |
-
2018
- 2018-02-02 CN CN201820185170.5U patent/CN207781769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193045A (en) * | 2020-01-02 | 2020-05-22 | 武汉中极氢能产业创新中心有限公司 | Bipolar plate of fuel cell and fuel cell |
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