CN208548404U - A kind of fuel cell pile - Google Patents
A kind of fuel cell pile Download PDFInfo
- Publication number
- CN208548404U CN208548404U CN201821351490.XU CN201821351490U CN208548404U CN 208548404 U CN208548404 U CN 208548404U CN 201821351490 U CN201821351490 U CN 201821351490U CN 208548404 U CN208548404 U CN 208548404U
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- Prior art keywords
- fuel cell
- membrane electrode
- positioning
- cell pile
- convex block
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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
This application discloses a kind of fuel cell piles, including alternately stacked multiple bipolar plates and multiple membrane electrodes, locating convex block is provided on the top surface of each membrane electrode, and positioning groove is offered on bottom surface, the positioning through hole for allowing the locating convex block to pass through is offered in each bipolar plates；Wherein, it is stacked and in two adjacent membrane electrodes, after the locating convex block on the membrane electrode of bottom is placed through the positioning through hole in the intermediate bipolar plates, extend into the positioning groove of the membrane electrode at top.Above-mentioned fuel cell pile, the positioning of realization bipolar plates and membrane electrode that it can be more accurate, avoid the generation of displacement, the sealing of fuel cell pile and performance is enabled to be no longer influenced by influence, improve the structural stability of fuel cell pile, and the packaging technology of fuel cell pile is also simplified, improve the packaging efficiency of fuel cell pile.
Description
Technical field
The utility model relates to field of fuel cell technology, in particular to a kind of fuel cell pile.
Background technique
Existing fuel cell pile, integrated approach are usually that bipolar plates and membrane electrode are fixed by interior locating rod or outside
The mode that position tooling is fallen piecewise is stacked, and bipolar plates and membrane electrode are compacted to the fuel electricity of setting by device for exerting
Then the assembling force of pond pile fastens fuel cell pile with standing screw or strapping, finally remove interior locating rod or outer fixed
Position tooling, to form fuel cell pile.
The fuel cell pile assembled using above-mentioned integration mode, is rubbing by sealing element between bipolar plates and membrane electrode
It is relatively-stationary to realize to wipe power, due to lacking accurate positioning between sealing element and bipolar plates, membrane electrode, in fuel cell
Sealing element is easy to produce dislocation in pile bonding processes, causes bipolar plates and membrane electrode to generate relative displacement, influences fuel cell
The sealing and performance of pile；Meanwhile in fuel cell pile bonding processes, since fuel cell pile lacks position limiting structure,
Foozle and assembly error be easy to cause fuel cell pile interlayer and layer memory compression uneven, generate fuel cell pile office
Portion's overpressure problems, lead to bipolar plates, and membrane electrode and sealing element generate deformation, influence the stable structure and property of fuel cell pile
Energy.In addition, bipolar plates and membrane electrode be when only frictionally is relatively fixed, in the case where the effect of external accelerations load such as vibrating, jolting
It is easy to generate relative storey displacement again, further affects the structural stability of fuel cell pile.
Utility model content
In view of this, the present invention provides a kind of fuel cell pile, realization bipolar plates that can be more accurate
With the positioning of membrane electrode, the sealing and performance for avoiding fuel cell pile are affected.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of fuel cell pile, including alternately stacked multiple bipolar plates and multiple membrane electrodes, each membrane electrode
Top surface on be provided with locating convex block, and offer positioning groove on bottom surface, offered in each bipolar plates
The positioning through hole for allowing the locating convex block to pass through；Wherein,
It is stacked and in two adjacent membrane electrodes, the locating convex block on the membrane electrode of bottom passes through
After being located in the middle the positioning through hole in the bipolar plates, it extend into the positioning groove of the membrane electrode at top.
Preferably, in above-mentioned fuel cell pile, multiple limits are offered on the top and bottom of each membrane electrode
Position groove, is provided with the multiple retaining convex ribs that can extend into the limiting groove, and institute in each bipolar plates
The one-to-one setting of the limiting groove stating retaining convex rib and being located on the top surface or the bottom surface.
Preferably, in above-mentioned fuel cell pile, the cross sectional shape of the limiting groove and the retaining convex rib is three
It is angular.
Preferably, in above-mentioned fuel cell pile, on the same membrane electrode, the locating convex block and the positioning
Groove is to positive setting.
Preferably, in above-mentioned fuel cell pile, the locating convex block, the positioning groove and the limiting groove are leaned on
The edge setting of the nearly membrane electrode.
Preferably, in above-mentioned fuel cell pile, the locating convex block on the same membrane electrode and described is set
Positioning groove is four, and is in distributed rectangular；The positioning through hole and the convex in the bipolar plates are set
The one-to-one setting of block.
Preferably, in above-mentioned fuel cell pile, the retaining convex rib be positioned close to same edge two are described fixed
Between the through-hole of position, and the retaining convex rib extends along the line of two positioning through hole.
Preferably, it in above-mentioned fuel cell pile, is stacked and in two adjacent membrane electrodes, when the institute of one
When stating locating convex block and being located in the positioning groove of another one, between having between the locating convex block and the positioning groove
Gap.
Fuel cell pile provided by the utility model is provided with locating convex block and positioning groove, double on membrane electrode
Positioning through hole is provided on pole plate, when fuel cell pile is when carrying out integrated assembling, two membrane electrodes being disposed adjacent and position
In in-between bipolar plates, the locating convex block on the membrane electrode of bottom, which can be placed through, to be opened up in intermediate bipolar plates
Positioning through hole passes through the convex of positioning through hole by the positioning for being arranged both realizations of locating convex block and positioning through hole later
Block will continue to extend into the positioning groove of another membrane electrode at top, be matched by locating convex block with the nested of positioning groove
The positioning for realizing two membrane electrodes is closed, and then realizes the relative positioning of bottom membrane electrode, intermediate bipolar plates and top membrane electrode, with
This continues stacking assembling membrane electrode and bipolar plates for basic fixed position unit, so that it may which the accurate assembling for realizing fuel cell pile makes
Fuel cell pile can be more accurate in integrated assembling process realization bipolar plates and membrane electrode positioning, avoid combustion
The sealing and performance for expecting battery stack are affected.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the top view of fuel cell pile provided by the embodiment of the utility model；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the A-A direction view of Fig. 2；
Fig. 4 is the B-B direction view of Fig. 2.
In Figs. 1-4:
1- bipolar plates, 2- membrane electrode, 3- locating convex block, 4- positioning groove, 5- positioning through hole, 6- retaining convex rib.
Specific embodiment
The utility model provides a kind of fuel cell pile, realization bipolar plates that can be more accurate and membrane electrode
Positioning, the sealing and performance for avoiding fuel cell pile are affected.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As Figure 1-Figure 4, fuel cell pile provided by the embodiment of the utility model preferably uses metal double polar plates
With the proton exchange film fuel cell electric piling of graphite bi-polar plate, mainly including multiple bipolar plates 1 of alternately laminated setting and multiple
Membrane electrode 2, wherein be provided with locating convex block 3 on the top surface of each membrane electrode 2, and opened on the bottom surface of each membrane electrode 2
It is corresponding equipped with positioning groove 4, the positioning through hole 5 for allowing locating convex block 3 to pass through is offered in each bipolar plates 1；?
When carrying out the integrated assembling of fuel cell pile, it is stacked and the membrane electrode 2 in two adjacent membrane electrodes 2, positioned at bottom
On locating convex block 3 be placed through the positioning through hole 5 in intermediate bipolar plates 1 after, extend into determining for the membrane electrode 2 positioned at top
In the groove 4 of position, the nested arrangements of locating convex block 3 and positioning groove 4 are realized, and then realize the relative positioning of three, as base
This positioning unit continues stacking assembling membrane electrode 2 and bipolar plates 1, so that it may realize the accurate assembling of fuel cell pile.
In order to advanced optimize technical solution, in fuel cell pile provided in this embodiment, order still further preferably
Multiple limiting grooves are offered on the top and bottom of each membrane electrode 2, being provided in each bipolar plates 1 can extend into
Multiple retaining convex ribs 6 in limiting groove, and retaining convex rib 6 with the limiting groove that is located on top surface or bottom surface is one-to-one sets
It sets, (Fig. 3 and Fig. 4 show the state that retaining convex rib 6 is bonded with limiting groove) as shown in Figure 3 and Figure 4.In the present embodiment,
On the basis for being provided with the self positioning structure being made of locating convex block 3 and positioning groove 4, also further in membrane electrode 2
It is upper to be provided with limiting groove, be provided with the retaining convex rib 6 that be engaged with limiting groove in bipolar plates 1, it is limited certainly with being formed
Structure, and then the cross spacing between membrane electrode 2 and adjacent bipolar plates 1 is realized, more fully to avoid Relative sliding feelings
The appearance of condition.
More preferred, the cross sectional shape of limiting groove and retaining convex rib 6 is triangle, as shown in Figure 3 and Figure 4.It
Cross sectional shape it is advantageous to limiting groove and retaining convex rib 6 is triangle, is because electric to fuel using device for exerting
When pond pile carries out pressurization fastening, the triangle concaveconvex structure that is mutually twisted on bipolar plates 1 and membrane electrode 2 (i.e. limiting groove and
Retaining convex rib 6) have the function of automatic aligning, can make bipolar plates 1 and membrane electrode 2 it is closer under pressure be fitted in one
It rises, to be generated laterally in the use process after preferably preventing bipolar plates 1 and membrane electrode 2 in course of exerting pressure and pressure fastening
Displacement.Also, limiting groove and retaining convex rib 6 constitute from position limiting structure, using device for exerting to bipolar plates 1 and membrane electrode
2 when being pressed, and by the abundant occlusion from position limiting structure, enables bipolar plates 1 that can not be further continued for membrane electrode 2 when being bonded completely
Compression, i.e., by matching the design pressure force from thickness (height of triangle) and fuel cell pile of position limiting structure,
Avoid the case where over-voltage occur when fuel cell pile assembling pressing.Specifically, preferred orientation through-hole 5 and retaining convex rib 6 pass through
Punching press is carried out to bipolar plates 1 or is process type.
By the optimization of above structure so that fuel cell pile provided in this embodiment have the advantages that it is following multiple:
One, using the bipolar plates 1 and membrane electrode 2 with self positioning structure and from position limiting structure, fuel cell can be made electric
It piles up without using quickly being assembled and being positioned in the case where auxiliary locator, simplifies the assembling work of fuel cell pile
Skill improves the packaging efficiency of fuel cell pile；
Two, using the bipolar plates 1 and membrane electrode 2 with self positioning structure and from position limiting structure, fuel cell can be prevented
Local excess pressure failure occurs in pile bonding processes, improves the stability and process of fuel cell pile assembling quality
Property；
Three, using the bipolar plates 1 and membrane electrode 2 with self positioning structure and from position limiting structure, fuel cell can be prevented
In assembling pressing and use process relative storey displacement occurs for pile, improves the structural stability of fuel cell pile.
As shown in figure 3, the present embodiment is further preferably on the same membrane electrode 2, locating convex block 3 and positioning groove 4 are to just setting
It sets.It enables the positioning groove 4 being provided on bottom surface be arranged with the locating convex block 3 being arranged on top surface to positive, positioning groove 4 can be given
Reserved bigger setting surplus, enables positioning groove 4 when opening up, can not only be deep into inside membrane electrode 2, can also be deep into
The inside of locating convex block 3 allows the depth of positioning groove 4 bigger, enables the positioning groove 4 on adjacent membrane electrode 2 and determines
Position convex block 3 may be implemented more fully nested, avoid be difficult to manufacture caused by the design size of self positioning structure is too small from asking
Topic, has expanded the design space of self positioning structure, has reduced the manufacture difficulty of self positioning structure.
Specifically, locating convex block 3, positioning groove 4 and limiting groove is enabled to be close to the edge setting of membrane electrode 2, i.e., will determine
Position convex block 3, positioning groove 4 and limiting groove are arranged on the outer ring frame of membrane electrode 2, as depicted in figs. 1 and 2, to avoid giving
The normal work of membrane electrode 2 impacts.Specifically, the locating convex block 3, positioning groove 4 and limiting groove on membrane electrode 2 are logical
It crosses injection molding or molding and forms.
As shown in Figure 1, the locating convex block 3 and positioning groove 4 that are preferably provided on same membrane electrode 2 are four, and
In distributed rectangular, the positioning through hole 5 in bipolar plates 1 and the one-to-one setting of locating convex block 3 are set, meanwhile, also enable retaining convex rib 6
It is positioned close between two positioning through hole 5 at same edge, and retaining convex rib 6 extends along the line of two positioning through hole 5.
Such set-up mode can more fully improve the self-positioning of fuel cell pile and from limit effect, so as this
The preferred arrangement of embodiment.
Further, it is further preferably stacked and in two adjacent membrane electrodes 2, the locating convex block 3 in one is located at another
When in the positioning groove 4 in one, there is gap between locating convex block 3 and positioning groove 4.Enable locating convex block 3 and positioning groove 4
There are free clearance appropriate when mutually fastening, can be used for eliminating foozle, guarantee spacing between adjacent membrane electrode 2 because
Self positioning structure still is able to fasten when foozle changes, and self positioning structure can be into one when fuel cell pile being enabled to press
The pressing of step.
Each part is described in a progressive manner in this specification, what the structure of each part stressed is
With the difference of existing structure, the entirety and part-structure of fuel cell pile can pass through the structure of the above-mentioned multiple portions of combination
And it obtains.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. a kind of fuel cell pile, including alternately stacked multiple bipolar plates and multiple membrane electrodes, which is characterized in that Mei Gesuo
It states and is provided with locating convex block on the top surface of membrane electrode, and offer positioning groove on bottom surface, in each bipolar plates
Offer the positioning through hole for allowing the locating convex block to pass through；Wherein,
It is stacked and in two adjacent membrane electrodes, the locating convex block on the membrane electrode of bottom is placed through
After positioning through hole in the intermediate bipolar plates, it extend into the positioning groove of the membrane electrode at top.
2. fuel cell pile according to claim 1, which is characterized in that on the top and bottom of each membrane electrode
Multiple limiting grooves are offered, the multiple limits that can extend into the limiting groove are provided in each bipolar plates
Position convex ribs, and the retaining convex rib and the one-to-one setting of the limiting groove on the top surface or the bottom surface.
3. fuel cell pile according to claim 2, which is characterized in that the limiting groove and the retaining convex rib
Cross sectional shape is triangle.
4. fuel cell pile according to claim 2, which is characterized in that described fixed on the same membrane electrode
Position convex block and the positioning groove are to positive setting.
5. fuel cell pile according to claim 4, which is characterized in that the locating convex block, the positioning groove and
The limiting groove is close to the edge setting of the membrane electrode.
6. fuel cell pile according to claim 5, which is characterized in that described in being arranged on the same membrane electrode
Locating convex block and the positioning groove are four, and are in distributed rectangular；The positioning being arranged in the bipolar plates is logical
Hole and the one-to-one setting of the locating convex block.
7. fuel cell pile according to claim 6, which is characterized in that the retaining convex rib is positioned close to same one side
Between two positioning through hole of edge, and the retaining convex rib extends along the line of two positioning through hole.
8. fuel cell pile described in any one of -7 according to claim 1, which is characterized in that be stacked and adjacent two
In a membrane electrode, when in the positioning groove that the locating convex block of one is located at another one, the locating convex block
There is gap between the positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821351490.XU CN208548404U (en) | 2018-08-21 | 2018-08-21 | A kind of fuel cell pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821351490.XU CN208548404U (en) | 2018-08-21 | 2018-08-21 | A kind of fuel cell pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208548404U true CN208548404U (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821351490.XU Active CN208548404U (en) | 2018-08-21 | 2018-08-21 | A kind of fuel cell pile |
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| CN (1) | CN208548404U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492163A (en) * | 2019-09-16 | 2019-11-22 | 中自环保科技股份有限公司 | A kind of fuel cell pile and its assembly method |
| CN114171753A (en) * | 2021-12-01 | 2022-03-11 | 上海捷氢科技股份有限公司 | Fuel cell and bipolar plate thereof |
| CN115000439A (en) * | 2022-06-13 | 2022-09-02 | 爱德曼氢能源装备有限公司 | Metal polar plate structure for improving fuel cell multilayer stack spacing reliability |
-
2018
- 2018-08-21 CN CN201821351490.XU patent/CN208548404U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492163A (en) * | 2019-09-16 | 2019-11-22 | 中自环保科技股份有限公司 | A kind of fuel cell pile and its assembly method |
| CN114171753A (en) * | 2021-12-01 | 2022-03-11 | 上海捷氢科技股份有限公司 | Fuel cell and bipolar plate thereof |
| CN114171753B (en) * | 2021-12-01 | 2024-01-19 | 上海捷氢科技股份有限公司 | Fuel cell and bipolar plate thereof |
| CN115000439A (en) * | 2022-06-13 | 2022-09-02 | 爱德曼氢能源装备有限公司 | Metal polar plate structure for improving fuel cell multilayer stack spacing reliability |
| CN115000439B (en) * | 2022-06-13 | 2023-02-03 | 爱德曼氢能源装备有限公司 | Metal polar plate structure for improving fuel cell multilayer stack spacing reliability |
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Effective date of registration: 20220114 Address after: 201800 No. 1788, xiechun Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai jiehydrogen Technology Co.,Ltd. Address before: Room 509, building 1, 563 Songtao Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai 200041 Patentee before: SAIC Motor Corp.,Ltd. |