CN209329036U - A kind of fuel cell unipolar plate structure - Google Patents
A kind of fuel cell unipolar plate structure Download PDFInfo
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- CN209329036U CN209329036U CN201920063188.2U CN201920063188U CN209329036U CN 209329036 U CN209329036 U CN 209329036U CN 201920063188 U CN201920063188 U CN 201920063188U CN 209329036 U CN209329036 U CN 209329036U
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- plate
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- extension portion
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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 utility model discloses a kind of fuel cell unipolar plate structure, including plate body, four side protrusions, two end bosses and voltage signal acquisition end, has air intlet and air outlet slit in two end bosses；It is respectively arranged with cooling water inlet, cooling water outlet, hydrogen inlet and hydrogen outlet in four side protrusions, is provided with voltage signal acquisition end on a side of plate body；The utility model passes through the one circle sealing iron bar of gas inlet and outlet and the setting of water flow import and export in unipolar plate, the extension portion of several distributions that are in U-shape is provided on sealing iron bar, protrusion is provided in extension portion, to promote the pressure between cathode-anode plate and between bipolar plates and membrane electrode in assembling, guarantee each inlet and outlet and external leakproofness, at least two slots are also arranged in the utility model on voltage signal acquisition end, after cathode-anode plate welded forming bipolar plates, slot on cathode-anode plate forms jack, avoid the situation that welding lead is needed when detection, it is very convenient.
Description
Technical field
The utility model belongs to field of fuel cell technology, specifically, being related to a kind of fuel cell unipolar plate structure.
Background technique
People, which have been working hard, for many years finds existing higher efficiency of energy utilization and using energy source free from environmental pollution
Mode, and fuel cell is exactly more satisfactory generation technology.Fuel cell is sufficiently complex, be related to chemical thermodynamics, electrochemistry,
Numerous subject correlation theories such as electro-catalysis, material science, electric system and automatic control have generating efficiency height, environmental pollution
The advantages that few, the primary structure of hydrogen fuel cell are bipolar plates and membrane electrode.
In the prior art, be by the way that two unipolar plates are welded together to form bipolar plates, but welding procedure, material,
The many reasons such as error always will appear substandard products in the bipolar plates of production, can be with for the sealing problem in bipolar plates water cavity flow field
Detected and screened by the bipolar plates sealing detection in later period, but for cooling water outlet and inlet, hydrogen inlet and outlet and
Leakproofness between outside oxygen inlet and outlet and bipolar plates is but unable to get guarantee, therefore in order to guarantee its leakproofness, existing
It is by the way that nylon U-shaped tent, U-shaped tent is arranged in cooling water outlet and inlet, hydrogen inlet and outlet and oxygen import and export in technology
Concave surface towards bipolar plates water cavity flow field, in this way come realize cooling water outlet and inlet, hydrogen inlet and outlet and oxygen into
The sealing of outlet, but the complexity of bipolar board production technology can be improved in this way, the production time is wasted, production cost is promoted, and
And when being detected to assembled pile, needs to weld together in inspection conducting wire and voltage signal acquisition end, equally mention
The complexity and cost of pile production technology are risen, in order to solve this problem, the utility model provides following technical scheme.
Utility model content
The purpose of this utility model is to provide a kind of fuel cell unipolar plate structures.
The utility model technical issues that need to address are as follows:
It 1, is by the way that U-shaped plug is arranged in cooling water outlet and inlet, hydrogen inlet and outlet and oxygen import and export in the prior art
Item guarantees the leakproofness of each inlet and outlet, can greatly increase the complexity of fuel cell preparation process in this way, promotes processing cost；
2, it in the prior art when detecting assembled pile, needs to believe in inspection conducting wire and the voltage of bipolar plates
Number collection terminal welds together, and improves the difficulty of detection in this way, improves the time cost of detection process, waste of manpower money
Source.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fuel cell unipolar plate structure, including plate body, four side protrusions, two end bosses and voltage signal are adopted
Collect end；
The two sides of the plate body is respectively arranged with gas flowfield and water flow field, and the both ends of plate body are respectively that two ends are convex
It rises, end bosses are structure as a whole with plate body, have air intlet and air outlet slit in two end bosses；
Two side protrusions are respectively arranged on two sides of the plate body, it is convex that side protrusion is positioned close to end
On the position risen, it is respectively arranged with cooling water inlet, cooling water outlet, hydrogen inlet and hydrogen outlet in four side protrusions,
Wherein cooling water inlet and cooling water outlet are separately positioned in the different sides at plate body both ends, hydrogen inlet and hydrogen outlet point
It is not arranged in the different sides at plate body both ends, is provided with voltage signal acquisition end on a side of plate body；
Slot is provided on the voltage signal acquisition end, the slot is two grooves disposed in parallel, and slot passes through straight
It connects and is stamped and formed out on voltage signal acquisition end；
The inner ring of the cooling water inlet is provided with circle sealing iron bar, seals and is equidistantly provided with extension portion on iron bar,
Several extension portion are in U-shape distribution, several extension portion are formed by the concave surface of U-shaped structure towards plate body direction, two neighboring
The distance between extension portion is 2-3mm, and protrusion is provided in extension portion, and the protrusion is spherical structure, and protrusion is by extending
It is stamped and formed out in portion, the concave surface direction of all protrusions is consistent, and the concave surface position consistency of the concave surface of protrusion and slot, the cooling
Water out is provided in hydrogen inlet, hydrogen outlet, air intlet and air outlet slit identical with above-mentioned cooling water inlet
The structure of iron bar, extension portion and protrusion is sealed, and the concave surface that several each extension portion in each inlet and outlet are formed by U-shaped structure is equal
Towards plate body direction.
As the further scheme of the utility model, more than two slots are set on the voltage signal acquisition end, and
It is parallel or not parallel between slot.
As the further scheme of the utility model, in welding, by the slot at the voltage signal acquisition end of anode plate
The recessed slot when the voltage signal acquisition end with cathode plate it is recessed while be oppositely arranged, and the slot and anode of cathode plate
The slot of plate is oppositely arranged to form diplopore socket, and is detected by detecting tool and diplopore socket to fuel cell.
As the further scheme of the utility model, the detecting tool includes plug and voltage check device, plug with
Diplopore socket adaptation, plug are connect by conducting wire with voltage check device, by plug insertion diplopore socket when detection, in fuel
Hydrogen, oxygen and cooling water are passed through in battery makes fuel cell enter working condition, and by voltage check device to single double
The voltage of pole plate is detected, if single bipolar plates operating voltage is unable to reach preset value, then it is assumed that the bipolar plates are abnormal double
Pole plate.
As the further scheme of the utility model, when carrying out bipolar plates welding, the anode plate and yin of bipolar plates are formed
The concave surface of protrusion on pole plate is oppositely arranged.
The utility model has the beneficial effects that
1, the utility model is close by the one circle sealing iron bar of gas inlet and outlet and water flow import and export setting in unipolar plate
The extension portion of several distributions that are in U-shape equidistantly is provided on envelope iron bar, and by being provided with protrusion in extension portion, thus in group
It is promoted when dress between cathode-anode plate and the pressure between bipolar plates and membrane electrode, to guarantee each of assembled fuel cell
Inlet and outlet and external leakproofness.
2, cathode-anode plate is being welded shape by the way that at least two slots are arranged on voltage signal acquisition end by the utility model
After bipolar plates, the slot on cathode-anode plate forms jack, when being detected, it is only necessary to will be connected with voltage check device
Plug is inserted into jack, can be obtained the voltage of the bipolar plates in work, very convenient.
Detailed description of the invention
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of unipolar plate；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the enlarged drawing in Fig. 1 at B.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
A kind of fuel cell unipolar plate structure, as shown in Figure 1, including the side protrusion 2, two of plate body 1, four end bosses
3 with voltage signal acquisition end 5；
The two sides of the plate body 1 is respectively arranged with gas flowfield and water flow field, and the both ends of plate body 1 are respectively that two ends are convex
3 are played, end bosses 3 are structure as a whole with plate body 1, have air intlet 31 and air outlet slit 32 in two end bosses 3；
Two side protrusions 2 are respectively arranged on two sides of the plate body 1, side protrusion 2 is positioned close to hold
On the position of portion's protrusion 3, to expand the flow range of fuel gas, oxidant and cooling water in flow field, four sides are convex
Rise and be respectively arranged with cooling water inlet 41, cooling water outlet 42 on 2, hydrogen inlet 21 and hydrogen outlet 22, wherein cooling water into
Mouth 41 is separately positioned in the different sides at 1 both ends of plate body with cooling water outlet 42, and hydrogen inlet 21 and hydrogen outlet 22 are distinguished
It is arranged in the different sides at 1 both ends of plate body, is provided with voltage signal acquisition end 5 on a side of plate body 1；
As shown in figure 3, being provided with slot 51 on the voltage signal acquisition end 5, the slot 51 is two disposed in parallel
Groove, slot 51 on voltage signal acquisition end 5 by being directly stamped and formed out；
Unipolar plate includes anode plate and cathode plate, by the way that anode plate and cathode plate are welded together to form metal bipolar
Plate, significant components one of of the bipolar plates as fuel cell are one of emphasis test objects when detecting fuel battery performance；
In welding, by the recessed one side of the slot 51 at anode plate voltage signal acquisition end and cathode plate voltage signal acquisition
The recessed of slot 51 at end is oppositely arranged on one side, and the slot 51 of the slot 51 of cathode plate and anode plate is oppositely arranged to form diplopore
Socket can be arranged two on voltage signal acquisition end according to needs of production as the further scheme of the utility model
A above slot 51, and can be not parallel between slot 51, and when being detected by detecting tool to fuel cell, it is described
Detecting tool includes plug and voltage check device, and plug is adapted to diplopore socket, and plug passes through conducting wire and voltage check device
Plug is inserted into diplopore socket when detection by connection, be passed through in a fuel cell hydrogen, oxygen and cooling water make fuel cell into
Enter working condition, and detected by voltage of the voltage check device to single bipolar plates, if single bipolar plates operating voltage
It is unable to reach preset value, then it is assumed that the bipolar plates are Abnormal Bipolar plate.
As shown in Fig. 2, the inner ring of the cooling water inlet 41 is provided with circle sealing iron bar 45, seal between being waited on iron bar 45
Away from being provided with extension portion 43, several extension portion 43 are in U-shape distribution, several extension portion 43 are formed by the concave surface of U-shaped structure
Towards 1 direction of plate body, the distance between two neighboring extension portion 43 is 2-3mm, and protrusion 44 is provided in extension portion 43, described prominent
Playing 44 is spherical structure, and by being stamped and formed out in extension portion 43, the concave surface direction of all protrusions 44 is consistent, and protrusion 44 is recessed
The concave surface position consistency in face and slot 51 forms prominent on the anode plate and cathode plate of bipolar plates when carrying out bipolar plates welding
Rise 44 concave surface it is opposite when be arranged；
The cooling water outlet 42 is respectively provided in hydrogen inlet 21, hydrogen outlet 22, air intlet 31 and air outlet slit 32
There is with above-mentioned cooling water inlet 41 structure of identical sealing iron bar 45, extension portion 43 and protrusion 44, and in each inlet and outlet
Several each extension portion 43 are formed by the concave surface of U-shaped structure towards 1 direction of plate body.
When carrying out fuel cell pile assembling, the setting of protrusion 44 improve sealing iron bar 45 vertically with flow field face side
Upward height, therefore the pressure between bipolar plates and membrane electrode is improved when assembling, to guarantee assembled fuel cell
Each inlet and outlet and external leakproofness.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of fuel cell unipolar plate structure, which is characterized in that including plate body (1), four side protrusions (2), two ends
Raised (3) and voltage signal acquisition end (5)；
The two sides of the plate body (1) is respectively arranged with gas flowfield and water flow field, and the both ends of plate body (1) are respectively that two ends are convex
Rise (3), end bosses (3) are structure as a whole with plate body (1), had on two end bosses (3) air intlet (31) and
Air outlet slit (32)；
Two side protrusions (2) are respectively arranged on two sides of the plate body (1), side protrusion (2) is positioned close to
On the position of end bosses (3), cooling water inlet (41), cooling water outlet (42) are respectively arranged on four side protrusions (2),
Hydrogen inlet (21) and hydrogen outlet (22), wherein cooling water inlet (41) and cooling water outlet (42) are separately positioned on plate body
(1) in the different sides at both ends, hydrogen inlet (21) is separately positioned on the different sides at plate body (1) both ends with hydrogen outlet (22)
On, voltage signal acquisition end (5) are provided on a side of plate body (1)；
It is provided with slot (51) on the voltage signal acquisition end (5), the slot (51) is two grooves disposed in parallel, slot
(51) by being directly stamped and formed out on voltage signal acquisition end (5)；
The inner ring of the cooling water inlet (41) is provided with circle sealing iron bar (45), is equidistantly provided in sealing iron bar (45)
Extension portion (43), several extension portion (43) are in U-shape distribution, several extension portion (43) are formed by the concave surface court of U-shaped structure
To plate body (1) direction, the distance between two neighboring extension portion (43) is 2-3mm, is provided with protrusion (44) in extension portion (43),
The protrusion (44) is spherical structure, and protrusion (44) on extension portion (43) by being stamped and formed out, the concave surface of all protrusions (44)
Direction is consistent, and the concave surface position consistency of the concave surface of protrusion (44) and slot (51), the cooling water outlet (42), hydrogen inlet
(21), hydrogen outlet (22), be provided in air intlet (31) and air outlet slit (32) in above-mentioned cooling water inlet (41)
The identical structure for sealing iron bar (45), extension portion (43) and protrusion (44), and several each extension portion (43) in each inlet and outlet
The concave surface of U-shaped structure is formed by towards plate body (1) direction.
2. a kind of fuel cell unipolar plate structure according to claim 1, which is characterized in that the voltage signal acquisition end
(5) setting no less than two slots (51) on, and it is parallel or not parallel between slot (51).
3. a kind of fuel cell unipolar plate structure according to claim 1, which is characterized in that in welding, by anode plate
Voltage signal acquisition end (5) slot (51) recessed one side and the slot (51) at the voltage signal acquisition end (5) of cathode plate
It is recessed be oppositely arranged on one side, and the slot (51) of the slot (51) of cathode plate and anode plate is oppositely arranged to form diplopore socket,
And fuel cell is detected by detecting tool and diplopore socket.
4. a kind of fuel cell unipolar plate structure according to claim 3, which is characterized in that the detecting tool includes inserting
Head and voltage check device, plug are adapted to diplopore socket, and plug passes through conducting wire and connect with voltage check device, plug when detection
It is inserted into diplopore socket.
5. a kind of fuel cell unipolar plate structure according to claim 1, which is characterized in that carrying out bipolar plates welding
When, the concave surface for forming the protrusion (44) on the anode plate and cathode plate of bipolar plates is oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063188.2U CN209329036U (en) | 2019-01-15 | 2019-01-15 | A kind of fuel cell unipolar plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920063188.2U CN209329036U (en) | 2019-01-15 | 2019-01-15 | A kind of fuel cell unipolar plate structure |
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| Publication Number | Publication Date |
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| CN209329036U true CN209329036U (en) | 2019-08-30 |
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| CN201920063188.2U Active CN209329036U (en) | 2019-01-15 | 2019-01-15 | A kind of fuel cell unipolar plate structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830693A (en) * | 2019-01-15 | 2019-05-31 | 安徽明天氢能科技股份有限公司 | A kind of fuel cell unipolar plate structure |
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- 2019-01-15 CN CN201920063188.2U patent/CN209329036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830693A (en) * | 2019-01-15 | 2019-05-31 | 安徽明天氢能科技股份有限公司 | A kind of fuel cell unipolar plate structure |
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