CN203607493U - Fuel cell stack packaging structure - Google Patents
Fuel cell stack packaging structure Download PDFInfo
- Publication number
- CN203607493U CN203607493U CN201320783547.4U CN201320783547U CN203607493U CN 203607493 U CN203607493 U CN 203607493U CN 201320783547 U CN201320783547 U CN 201320783547U CN 203607493 U CN203607493 U CN 203607493U
- Authority
- CN
- China
- Prior art keywords
- end plate
- fuel cell
- battery pile
- cell stack
- encapsulating structure
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000004806 packaging method and process Methods 0.000 title abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 34
- 239000011521 glass Substances 0.000 claims description 16
- 229920000715 Mucilage Polymers 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000005483 Hooke's law Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a fuel cell stack packaging structure and relates to the field of cell packaging structures. The fuel cell stack packaging structure comprises a first end plate (4), a second end plate (11) and an insulating plate (9), wherein the first end plate (4) and the second end plate (11) are arranged in parallel, the insulating plate (9) is parallelly located between the first end plate (4) and the second end plate (11), the cell stack is located between the insulating plate (9) and the first end plate (4), and glass fiber cloth (1) is wrapped outside the assembled cell stack. The packaging structure is convenient for organizing automatic production, can provide uniform and constant assembling pressure to the inner side of the fuel cell stack and ensures the normal operating conditions of the fuel cell stack, so that the service life of the fuel cell stack is guaranteed. Meanwhile, the packaging structure further has the advantages of small occupied space, light weight and low production cost.
Description
Technical field
The utility model relates to battery packaging structure field, is specifically a kind of fuel cell pack encapsulating structure.
Background technology
The elementary cell of fuel cell pack is monocell, with regard to proton exchange membrane h2 fuel cell stack, its monocell is made up of the diffusion layer of membrane electrode, membrane electrode both sides, the battery lead plate adjacent with diffusion layer, be called anode with the battery lead plate of hydrogen homonymy, be called negative electrode with the battery lead plate of air (oxygen) homonymy.The effective voltage of monocell is very low, and its open circuit voltage is the highest also only has 1.229V, the unit are of every square centimeter that the 1A electric current of left and right generally also can only be provided, and the monocell that therefore area is too little does not have practicality.Conventionally monocell is fabricated to the laminate structure that area is larger, the loop current of external circuit be unit are electric current parallel connection and, area is larger, the electric current that offers external circuit is also just larger; Then connect to obtain by a lot of monocells the sufficiently high voltage needing, now, the anode of a monocell and the negative electrode of another monocell merge, and are referred to as bipolar plates.Between bipolar plates and membrane electrode, also have sealing ring, in order to isolated atmosphere, this stepped construction with sealing ring being made up of multilayer monocell is the core of battery pile.
Current battery heap encapsulating structure mainly contains following shortcoming:
1, encapsulation process complexity, is not easy to organize Automatic continuous to produce.The battery pile of producing is at present laboratory product mostly, adopts screw rod or steel band on forcing press, to carry out hand assembled, and the pressure between each fastening point is difficult to adjustment, assembling production efficiency is low.
2, encapsulating structure can not guarantee even, constant assembling pressure, thereby can not guarantee that membrane electrode and bipolar plates normally work, and affects the fuel cell stack operation life-span.One of reason is all to have contact resistance between membrane electrode and diffusion layer, diffusion layer and bipolar plates, if pressure is inhomogeneous, can cause contact resistance inhomogeneous, and then cause that the internal resistance of inside battery each point is inhomogeneous and reaction efficiency is inconsistent, thereby make caloric value everywhere inconsistent, easily cause local overheating, damage membrane electrode; If pressure is non-constant, the voltage-current characteristic of battery is unstable, causes declining with the parameter matching performance of Fuel Cell Control software, does not reach optimal control.Formerly therefore two be that membrane electrode and bipolar plates all have its maximum to meet with stresses, local pressure is too high may cause the local early damage of membrane electrode, bipolar plates conquassation, and the problems such as Leakage Gas, membrane electrode burn occur.
While adopting steel band mode, steel band length is difficult to effectively keep constant, and along with the continuous rise and fall of temperature alternately change, steel band securing member easily produces slippage, causes colligation power to change; Also can there is creep in steel band, along with the time changes, also cause the assembling pressure of stepped construction to change.
While adopting screw rod connected mode, space that the securing members such as screw rod and nut occupy is large, weight is large, has damaged the power density of battery pile.
Existing most fuel cell product does not still consider to solve the problem that pressure changes.Minority producer adopts the mode that increases elastic element on encapsulating structure, comprises cylindrical spring, butterfly spring, rubber air spring, these several classes of rubber blanket.Wherein cylindrical spring is because observing Hooke's law, and its deformation is directly proportional to elastic force, can not guarantee the constant of pressure; Although butterfly spring have advantages of take up room little, but still observe Hooke's law; Rubber air spring and rubber blanket can be good at solving homogeneity question, but the anufacturability of rubber air spring is poor, and cost is high, and equally with rubber blanket have a shortcoming that quality and performance steady in a long-term cannot guarantee.
Utility model content
For the defect existing in prior art, the purpose of this utility model is to provide a kind of fuel cell pack encapsulating structure, this encapsulating structure is convenient to organize automated production, can provide even, constant assembling pressure for fuel cell pack inside, guarantee the normal running conditions of fuel cell pack, thereby guaranteed the working life of battery pile; Meanwhile, this encapsulating structure also have advantages of take up room little, quality is light, production cost is low.
For reaching above object, the technical scheme that the utility model is taked is: a kind of fuel cell pack encapsulating structure, comprise the first end plate, the second end plate and insulation board, described the first end plate and the second end plate be arranged in parallel, described insulation board is parallel between described the first end plate and the second end plate, described battery pile is between described insulation board and the first end plate, and structural outer after battery pile assembling, is enclosed with glass fabric.
On the basis of such scheme, described the second end plate is provided with multiple blind holes towards the surface of battery pile, fixes a shaped grooved disk spring in each described blind hole.
On the basis of such scheme, also comprise at least two insulation positioning rods, described the first end plate, the second end plate, insulation board and the equal correspondence of battery pile are provided with at least two location holes that position is identical, every described insulation positioning rod, by this location hole, runs through described the first end plate, battery pile, insulation board and the second end plate successively.
On the basis of such scheme, the material of described insulation positioning rod is pottery or phenolic resins.
On the basis of such scheme, described the first end plate and the second end plate all have rounded edges.
On the basis of such scheme, be equipped with insulation protective board in four sides of battery pile.
On the basis of such scheme, described glass fabric is mucilage glue surface towards the one side of battery pile.
The beneficial effects of the utility model are:
1, not only density is low for glass fabric, and thickness is little, general large about 0.8mm left and right, and has very high modulus of elasticity, and when parcel battery pile, general need to be wound around 4-5 layer, and glass fabric only occupies about 3-4mm in battery pile outside; Effectively improve battery pile power density.Meanwhile, shaped grooved disk spring thickness is little, and materials are few, thus make encapsulating structure take up room little, quality is light, has further improved battery pile power power density.
2, due to glass fabric, to have conductive coefficient little, can play insulation effect to the battery pile after parcel, thereby improved battery pile core and the large problem of the peripheral temperature difference, also strengthened the low temperature environment adaptive capacity of battery pile.
3, the cost of material is low for glass fabric, adopts canoe parcel battery pile, and encapsulation process is simple, thereby makes fuel cell pack encapsulating structure cost low, and is convenient to for automated production.
4, owing to having adopted shaped grooved disk spring, it has one section of deformational displacement of existence in the middle of its license deflection, in this deformational displacement, elastic force keeps invariable characteristic, thereby for battery pile inside provides even, constant assembling pressure, guarantee the normal running conditions of fuel cell pack, thereby also guaranteed its working life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fuel cell pack encapsulating structure of the utility model.
Reference numeral: glass fabric 1; Mucilage glue surface 2; Insulation positioning rod 3; The first end plate 4; Sealing ring 5, membrane electrode 6, bipolar plates 7; Insulation protective board 8; Insulation board 9; Shaped grooved disk spring 10; The second end plate 11.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model fuel cell pack encapsulating structure comprises the first end plate 4, the second end plate 11 and the insulation board 9 that be arranged in parallel, insulation board 9 is between described the first end plate 4 and the second end plate 11, the bottom of described the second end plate 11 is provided with multiple blind holes, in each described blind hole, fix a shaped grooved disk spring 10, battery pile is between described insulation board 9 and the first end plate 4, and structural outer after battery pile installs parcel glass fabric 1.The utility model fuel cell pack encapsulating structure also comprises at least two insulation positioning rods 3, described the first end plate 4, the second end plate 11, insulation board 9 and the equal correspondence of battery pile are provided with at least two location holes that position is identical, every described insulation positioning rod 3, by this location hole, runs through described the first end plate 4, battery pile, insulation board 9 and the second end plate 11 successively.The first end plate 4 and the second end plate 11 all should have rounded edges, prevent that glass fabric 1 from being cut off, and in the time of forcing press clamping battery pile, excessive deformation does not all occur at the middle part of the first end plate 4 and the second end plate 11.
When the utility model is piled in assembled battery, first in the blind hole of the second end plate 11, fix shaped grooved disk spring 10, then place insulation board 9, more layer by layer membrane electrode 6, sealing ring 5, bipolar plates 7 number of plies are as required stacked up successively, then place the first end plate 4.In order to facilitate the fixed installation of battery pile, hole is set on monocell, and multiple monocells are laminated into battery pile, with forcing press clamping battery pile both sides, the hole of again insulation positioning rod 3 being passed in battery pile, thus battery pile is fixed between insulation board 9 and the first end plate 4.In order to prevent that glass fabric 1 from being cut off by bipolar plates 7, all arrange insulation protective board 8 in four sides of battery pile, in the time that bipolar plates 7 does not have sharp edges, needn't use insulation protective board 8.After battery pile assembles, by puller system, glass fabric 1 one is enclosed the land and is wrapped in the structural outer of the heap of assembled battery, the number of turns of winding should enough make fiberglass fibers cloth 1 can bear the tensile stress of battery pile.Glass fabric 1 has mucilage glue surface towards the one side of battery pile, and gluing on the mucilage glue surface 2 of the last lap being wound around at glass fabric 1, cements glass fabric 1, with the leftover of bolt of cloth of fixing glass fiber cloth 1.
For the stepped construction of battery pile, membrane electrode 6 can be integrated into an entirety with sealing ring 5, forms the membrane electrode 6 with sealing ring 5, also bipolar plates 7 and sealing ring 5 can be integrated into an entirety, forms the bipolar plates 7 with sealing ring 5.
Shaped grooved disk spring 10 has such feature: in the middle of its license deflection, have one section of deformational displacement, in this deformational displacement, elastic force keeps invariable.In the utility model, should design as required interlude deformation quantity with and the value of constant elastic force, the size of interlude deformation quantity should be considered the stepped construction of battery pile and the effect of expanding with heat and contract with cold of whole encapsulating structure, no matter battery pile expands or shrinks, and its deflection should not make the distortion of shaped grooved disk spring 10 exceed its intermediate range.
The utility model is not only confined to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a utility model or akin technical scheme, all within its protection range.
Claims (7)
1. a fuel cell pack encapsulating structure, comprise the first end plate (4), the second end plate (11) and insulation board (9), described the first end plate (4) be arranged in parallel with the second end plate (11), described insulation board (9) is parallel to be positioned between described the first end plate (4) and the second end plate (11), it is characterized in that: described battery pile is positioned between described insulation board (9) and the first end plate (4), and the structural outer after battery pile assembling, is enclosed with glass fabric (1).
2. a kind of fuel cell pack encapsulating structure as claimed in claim 1, is characterized in that: described the second end plate (11) is provided with multiple blind holes towards the surface of battery pile, fixes a shaped grooved disk spring (10) in each described blind hole.
3. a kind of fuel cell pack encapsulating structure as claimed in claim 1, it is characterized in that: also comprise at least two insulation positioning rods (3), described the first end plate (4), the second end plate (11), insulation board (9) and the equal correspondence of battery pile are provided with at least two location holes that position is identical, every described insulation positioning rod (3), by this location hole, runs through described the first end plate (4), battery pile, insulation board (9) and the second end plate (11) successively.
4. a kind of fuel cell pack encapsulating structure as claimed in claim 3, is characterized in that: the material of described insulation positioning rod (3) is pottery or phenolic resins.
5. a kind of fuel cell pack encapsulating structure as claimed in claim 1, is characterized in that: described the first end plate (4) and the second end plate (11) all have rounded edges.
6. a kind of fuel cell pack encapsulating structure as claimed in claim 1, is characterized in that: four sides in battery pile are equipped with insulation protective board (8).
7. a kind of fuel cell pack encapsulating structure as claimed in claim 1, is characterized in that: described glass fabric (1) is mucilage glue surface (2) towards the one side of battery pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783547.4U CN203607493U (en) | 2013-12-03 | 2013-12-03 | Fuel cell stack packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320783547.4U CN203607493U (en) | 2013-12-03 | 2013-12-03 | Fuel cell stack packaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607493U true CN203607493U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320783547.4U Expired - Lifetime CN203607493U (en) | 2013-12-03 | 2013-12-03 | Fuel cell stack packaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607493U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143653A (en) * | 2014-08-07 | 2014-11-12 | 上海航天电源技术有限责任公司 | Assembling and shaping fixture for vehicle-mounted battery pack system module and assembling and shaping method thereof |
| CN105932318A (en) * | 2016-06-08 | 2016-09-07 | 北京氢璞创能科技有限公司 | Electric pile packaging structure |
| CN107611466A (en) * | 2017-10-20 | 2018-01-19 | 苏州中氢能源科技有限公司 | A kind of encapsulating structure of fuel cell pack |
| CN107611465A (en) * | 2017-10-20 | 2018-01-19 | 苏州中氢能源科技有限公司 | A kind of fuel cell pack power supply output connection structure |
| CN107742736A (en) * | 2017-10-20 | 2018-02-27 | 苏州中氢能源科技有限公司 | A kind of fuel cell pack tip plate configurations |
| CN107768696A (en) * | 2017-10-20 | 2018-03-06 | 苏州中氢能源科技有限公司 | A kind of stack structure for fuel battery |
| CN113224364A (en) * | 2021-05-25 | 2021-08-06 | 华能国际电力股份有限公司 | Vertical assembling device and method for molten carbonate fuel cell stack |
| CN113659183A (en) * | 2020-04-29 | 2021-11-16 | 未势能源科技有限公司 | Fuel cell stack assembly |
| CN115411293A (en) * | 2022-11-01 | 2022-11-29 | 扬州西融储能科技有限公司 | Sealing process of flow galvanic pile |
| CN116207321A (en) * | 2023-04-21 | 2023-06-02 | 北京亿华通科技股份有限公司 | High-power fuel cell pile press-fitting method and system thereof |
-
2013
- 2013-12-03 CN CN201320783547.4U patent/CN203607493U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143653A (en) * | 2014-08-07 | 2014-11-12 | 上海航天电源技术有限责任公司 | Assembling and shaping fixture for vehicle-mounted battery pack system module and assembling and shaping method thereof |
| CN104143653B (en) * | 2014-08-07 | 2016-08-17 | 上海航天电源技术有限责任公司 | On-vehicle battery group system module assembling shaping tooling and assembling shaping methods |
| CN105932318A (en) * | 2016-06-08 | 2016-09-07 | 北京氢璞创能科技有限公司 | Electric pile packaging structure |
| CN107768696A (en) * | 2017-10-20 | 2018-03-06 | 苏州中氢能源科技有限公司 | A kind of stack structure for fuel battery |
| CN107611465A (en) * | 2017-10-20 | 2018-01-19 | 苏州中氢能源科技有限公司 | A kind of fuel cell pack power supply output connection structure |
| CN107742736A (en) * | 2017-10-20 | 2018-02-27 | 苏州中氢能源科技有限公司 | A kind of fuel cell pack tip plate configurations |
| CN107611466A (en) * | 2017-10-20 | 2018-01-19 | 苏州中氢能源科技有限公司 | A kind of encapsulating structure of fuel cell pack |
| CN113659183A (en) * | 2020-04-29 | 2021-11-16 | 未势能源科技有限公司 | Fuel cell stack assembly |
| CN113659183B (en) * | 2020-04-29 | 2023-01-13 | 未势能源科技有限公司 | Fuel cell stack assembly |
| CN113224364A (en) * | 2021-05-25 | 2021-08-06 | 华能国际电力股份有限公司 | Vertical assembling device and method for molten carbonate fuel cell stack |
| CN115411293A (en) * | 2022-11-01 | 2022-11-29 | 扬州西融储能科技有限公司 | Sealing process of flow galvanic pile |
| CN115411293B (en) * | 2022-11-01 | 2023-01-10 | 扬州西融储能科技有限公司 | Sealing process of flow galvanic pile |
| CN116207321A (en) * | 2023-04-21 | 2023-06-02 | 北京亿华通科技股份有限公司 | High-power fuel cell pile press-fitting method and system thereof |
| CN116207321B (en) * | 2023-04-21 | 2023-09-29 | 北京亿华通科技股份有限公司 | High-power fuel cell pile press-fitting method and system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 102600 No.17 yard, Yongchang South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Long March Tian Min Hi-tech Co.,Ltd. Address before: 100176, room 2, building 17, 4003 South Road, Beijing economic and Technological Development Zone, Beijing, Yongchang Patentee before: AEROSPACE NEW LONG MARCH ELECTRIC VEHICLE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |
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| CX01 | Expiry of patent term |