CN208173711U - A kind of fuel cell pile with whole completely sealed structure - Google Patents
A kind of fuel cell pile with whole completely sealed structure Download PDFInfo
- Publication number
- CN208173711U CN208173711U CN201721902897.2U CN201721902897U CN208173711U CN 208173711 U CN208173711 U CN 208173711U CN 201721902897 U CN201721902897 U CN 201721902897U CN 208173711 U CN208173711 U CN 208173711U
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- CN
- China
- Prior art keywords
- fuel cell
- completely sealed
- sealed structure
- sealant
- flow passage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a kind of fuel cell piles with whole completely sealed structure, the pile includes staggeredly stacked bipolar plates (1) and sets membrane electrode assembly (2), bipolar plates (1) have flow passage area (11) and are enclosed in the sealing area (12) of flow passage area (11) outside, sealing area (12) is higher than flow passage area (11), and seal groove (121) are equipped in sealing area (12), sealant (122) are equipped in the seal groove (121), membrane electrode assembly (2) is covered on flow passage area (11) and sealing area (12), and it is connect with the sealant (122) in seal groove (121).Compared with prior art, the utility model improves production efficiency and reliability, has saved cost.
Description
Technical field
The utility model belongs to fuel cell field, is related to a kind of fuel cell electricity with whole completely sealed structure
Heap.
Background technique
Fuel cell is a kind of energy conversion device, the chemistry that will be stored in fuel and oxidant according to electrochemical principle
It can be converted into electric energy, the advantage for having generating efficiency high, low in the pollution of the environment has a wide range of applications.Fuel cell
Fuel be usually hydrogen, methanol, methane, air or oxygen etc. is oxidant, wherein fuel and oxidant cannot directly connect
Touching, need to be separated, otherwise the safety of battery can be greatly lowered, or even have the danger of explosion by sealing device.So leakproofness
It can be most important for fuel cell.
The main seal mode of existing fuel cell has a sealant linear sealing, for example Publication No. CN102324471B's is special
Benefit, entire sealing structure are made of upper and lower bipolar plates, sealing ring and membrane electrode assembly, sealing ring and bipolar plates, sealing ring and
Membrane electrode contact place, is easy to produce leakage, reduces the effect of sealing；Besides using the technique of welding, such as publication number
It is applied on sealing station by preparing a kind of lower melting-point composite soldering cream for the patent of CN105397336A, carries out pricker
Weldering connection, guarantees sealing performance, but this mode is more complicated, more demanding to technique, meanwhile, temperature when welding is easy
Battery is damaged.Influence the performance of battery.Besides using integrated sealing, such as Publication No. CN102938468A
Patent be coated on seal groove and the seal line of membrane electrode using a kind of sealant as seal line property
On position, then seal line is placed in seal groove, it is sealed by seal line and sealant, this sealing means
It is relatively easy, it is suitble to a large amount of processing, but its mainly metal double polar plates for being directed to；In addition, respectively in seal groove and membrane electrode
Smear sealant on upper corresponding position and increase the difficulty of technique, at the same smear on seal groove sealant it is covert reduce it is close
Sealing groove groove depth, when encapsulation, will increase the pressure of seal line receiving, Performance data are influenced, in addition, a more seal line, more one of work
Sequence, when assembling, are time-consuming and laborious.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of with whole to overcome the problems of the above-mentioned prior art
The fuel cell pile of completely sealed structure.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of fuel cell pile with whole completely sealed structure including staggeredly stacked bipolar plates and sets membrane electrode
Component, the sealing area that the bipolar plates have flow passage area and are enclosed in outside flow passage area, the sealing area are higher than
Flow passage area, and seal groove is equipped in sealing area, sealant is equipped in the seal groove, membrane electrode assembly is covered in runner
On region and sealing area, and with the sealing glue connection in seal groove.
Preferably, the membrane electrode assembly is made of conversion zone and the frame region being enclosed in outside conversion zone, institute
The conversion zone stated matches with flow passage area, and the frame region matches with sealing area, and with it is close in seal groove
Sealing connection.
Preferably, the conversion zone of the membrane electrode assembly and frame region are in compressive state.
Preferably, the thickness of the conversion zone of the membrane electrode assembly is greater than the thickness of frame region.
Preferably, the conversion zone of the membrane electrode assembly by dielectric film and is located at dielectric film two sides
Electrode composition.
Preferably, the bipolar plates are graphite bi-polar plate, metal double polar plates or composite material double pole plate.
Preferably, the sealant is room temperature curing type thixotropy sealant.
The preparation method of the fuel cell pile for having whole completely sealed structure, includes the following steps：
S1：By gluing in the seal groove of the sealing area in the face bipolar plates A, and membrane electrode assembly is bonded in the A of bipolar plates
Face carries out room temperature curing, forms combination；
S2：The A of multiple combinations is face-down, and gluing in the seal groove of the sealing area in the face combination B, layer stackup
It sets, and is placed between the attachment of two sides, encapsulate, fastening, normal temperature cure forms the fuel cell with whole completely sealed structure
Pile.
Preferably, the gluing uses gluing process, and sealant used in gluing is the sealing of room temperature curing type thixotropy
Glue.It can membrane electrode assembly caused by Self-leveling and sealant poor contact in seal groove to avoid glue.
Compared with prior art, the utility model has the advantages that：
(1) sealing area of bipolar plates is higher than flow passage area, connects with the frame region of MEA (membrane electrode assembly),
Guarantee under encapsulation power effect, the decrement of membrane electrode assembly is met the requirements.
(2) production efficiency is improved.This programme is easy to operate, avoids the risk that gasket misplaces position, need to only fold from level to level
Add, reduce operation difficulty, improves production efficiency
(3) reliability is improved, this programme replaces seal line by coating technique, avoids from seal line and pole plate, close
Line and MEA contact interface are sealed there is a situation where leaking, improves the reliability of product.
(4) cost has been saved.This programme replaces seal line using gluing, reduces the expense and seal line of seal line die sinking
Processing cost.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the utility model；
Fig. 2 is the diagrammatic cross-section of the bipolar plates of the utility model；
Fig. 3 is the diagrammatic cross-section of the combination of the utility model；
Fig. 4 is the diagrammatic cross-section of the combination after the gluing of the face B.
In figure, 1 is bipolar plates, and 11 be flow passage area, and 12 be sealing area, and 121 be seal groove, and 122 be sealant, and 2 are
Membrane electrode assembly, 21 be conversion zone, and 22 be frame region.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of fuel cell pile with whole completely sealed structure, as shown in Fig. 1~2, including staggeredly stacked pair
Pole plate 1 and set membrane electrode assembly 2, the sealing area 12 that bipolar plates 1 have flow passage area 11 and are enclosed in outside flow passage area 11 is close
It seals region 12 and is higher than flow passage area 11, and be equipped with seal groove 121 in sealing area 12, sealant 122 is equipped in seal groove 121,
Membrane electrode assembly 2 is covered on flow passage area 11 and sealing area 12, and is connect with the sealant 122 in seal groove 121.
In this present embodiment, membrane electrode assembly 2 is by conversion zone 21 and the frame region 22 being enclosed in outside conversion zone 21
Composition, conversion zone 21 matches with flow passage area 11, and frame region 22 matches with sealing area 12, and with seal groove 121
Interior sealant 122 connects.The conversion zone 21 and frame region 22 of membrane electrode assembly 2 are in compressive state.Membrane electrode assembly
The thickness of the conversion zone 21 of part 2 is greater than the thickness of frame region 22.The conversion zone 21 of membrane electrode assembly 2 by dielectric film with
And it is located at the electrode composition on dielectric film two sides.Bipolar plates 1 are graphite bi-polar plate, metal double polar plates or composite bipolar
Plate.Sealant 122 is room temperature curing type thixotropy sealant 122.
The preparation method of the above-mentioned fuel cell pile with whole completely sealed structure, includes the following steps：
S1：By gluing in the seal groove 121 of the sealing area 12 in the face bipolar plates 1A, and membrane electrode assembly 2 is bonded in double
The face A of pole plate 1 carries out room temperature curing, forms combination, as shown in Figure 3；
S2：The A of multiple combinations (the present embodiment is by taking two basic change body as an example) is face-down, and in the face each combination B
Sealing area 12 seal groove 121 in gluing, as shown in figure 4, being stacked layer by layer, and be placed between the attachment of two sides, encapsulate, tightly
Gu normal temperature cure forms the fuel cell pile with whole completely sealed structure.
Gluing process is used when gluing, sealant used in gluing is room temperature curing type thixotropy sealant.It can be to avoid
Glue membrane electrode assembly caused by Self-leveling and sealant poor contact in seal groove.
Two sides attachment includes end plate, insulation board and collector plate, conventional arrangement.Curing time, which can according to need, to be selected
It selects, glue is fully cured within general 24 hours.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to the above embodiments, this
Field technical staff announcement according to the present utility model, does not depart from improvement that the utility model scope is made and modification all should
It is within the protection scope of the utility model.
Claims (7)
1. a kind of fuel cell pile with whole completely sealed structure including staggeredly stacked bipolar plates (1) and sets film electricity
Pole component (2), the bipolar plates (1) have flow passage area (11) and are enclosed in the sealing area of flow passage area (11) outside
(12), which is characterized in that the sealing area (12) is higher than flow passage area (11), and seal groove is equipped in sealing area (12)
(121), sealant (122) are equipped in the seal groove (121), membrane electrode assembly (2) is covered in flow passage area (11) and close
It seals on region (12), and is connect with the sealant (122) in seal groove (121).
2. a kind of fuel cell pile with whole completely sealed structure according to claim 1, which is characterized in that institute
The membrane electrode assembly (2) stated is by conversion zone (21) and is enclosed in the frame region (22) of conversion zone (21) outside and forms, described
Conversion zone (21) match with flow passage area (11), the frame region (22) matches with sealing area (12), and
It is connect with the sealant (122) in seal groove (121).
3. a kind of fuel cell pile with whole completely sealed structure according to claim 2, which is characterized in that institute
The conversion zone (21) and frame region (22) for the membrane electrode assembly (2) stated are in compressive state.
4. a kind of fuel cell pile with whole completely sealed structure according to claim 2, which is characterized in that institute
The thickness of the conversion zone (21) for the membrane electrode assembly (2) stated is greater than the thickness of frame region (22).
5. a kind of fuel cell pile with whole completely sealed structure according to claim 2, which is characterized in that institute
The conversion zone (21) for the membrane electrode assembly (2) stated is by dielectric film and is located at the electrode on dielectric film two sides and forms.
6. a kind of fuel cell pile with whole completely sealed structure according to claim 1, which is characterized in that institute
The bipolar plates (1) stated are graphite bi-polar plate, metal double polar plates or composite material double pole plate.
7. a kind of fuel cell pile with whole completely sealed structure according to claim 1, which is characterized in that institute
The sealant (122) stated is room temperature curing type thixotropy sealant (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902897.2U CN208173711U (en) | 2017-12-29 | 2017-12-29 | A kind of fuel cell pile with whole completely sealed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902897.2U CN208173711U (en) | 2017-12-29 | 2017-12-29 | A kind of fuel cell pile with whole completely sealed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208173711U true CN208173711U (en) | 2018-11-30 |
Family
ID=64386767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721902897.2U Active CN208173711U (en) | 2017-12-29 | 2017-12-29 | A kind of fuel cell pile with whole completely sealed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208173711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155397A (en) * | 2017-12-29 | 2018-06-12 | 上海神力科技有限公司 | A kind of fuel cell pile with whole completely sealed structure and preparation method thereof |
| CN110224152A (en) * | 2019-05-30 | 2019-09-10 | 山东潍氢动力科技有限公司 | Fuel cell with double density sealing groove metal double polar plates and note silica gel film electrode structure |
-
2017
- 2017-12-29 CN CN201721902897.2U patent/CN208173711U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155397A (en) * | 2017-12-29 | 2018-06-12 | 上海神力科技有限公司 | A kind of fuel cell pile with whole completely sealed structure and preparation method thereof |
| CN110224152A (en) * | 2019-05-30 | 2019-09-10 | 山东潍氢动力科技有限公司 | Fuel cell with double density sealing groove metal double polar plates and note silica gel film electrode structure |
| CN110224152B (en) * | 2019-05-30 | 2020-10-13 | 山东潍氢动力科技有限公司 | Fuel cell with double-sealing groove metal bipolar plate and silicon injection membrane electrode structure |
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