CN117039041A - Method for pasting bipolar plate sealing ring of proton exchange membrane fuel cell - Google Patents
Method for pasting bipolar plate sealing ring of proton exchange membrane fuel cell Download PDFInfo
- Publication number
- CN117039041A CN117039041A CN202310975634.8A CN202310975634A CN117039041A CN 117039041 A CN117039041 A CN 117039041A CN 202310975634 A CN202310975634 A CN 202310975634A CN 117039041 A CN117039041 A CN 117039041A
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- Prior art keywords
- positioning
- sealing ring
- plate
- tool
- glue
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- 238000007789 sealing Methods 0.000 title claims abstract description 99
- 239000012528 membrane Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 239000003292 glue Substances 0.000 claims abstract description 64
- 239000002987 primer (paints) Substances 0.000 claims abstract description 42
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 230000001680 brushing effect Effects 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 42
- 239000002826 coolant Substances 0.000 claims description 28
- 239000002737 fuel gas Substances 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 229920001971 elastomer Polymers 0.000 claims description 23
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000011087 paperboard Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 7
- 230000008021 deposition Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0286—Processes for forming seals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
- H01M8/0284—Organic resins; Organic polymers
Abstract
The invention discloses a method for pasting a bipolar plate sealing ring of a proton exchange membrane fuel cell, which comprises the following steps: the polar plate is arranged on the polar plate positioning tool by utilizing the positioning rod, the first installation positioning hole on the polar plate and the first positioning hole on the polar plate positioning tool; brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool; reversely buckling the primer coating tool on the polar plate positioning tool, and transferring primer coating to the bonding surface of the polar plate; installing a sealing ring to a sealing ring positioning tool; brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool; reversely buckling the primer coating tool to the sealing ring positioning tool, and transferring primer coating to the bonding surface of the sealing ring; and taking down the polar plate after the glue is dried, and pressing the bonding surface of the polar plate on the bonding surface of the sealing ring by using the positioning rod. According to the invention, the polar plate positioning tool, the sealing ring positioning tool and the primer positioning tool are used for positioning, and primer coating is coated on the bonding part of the sealing ring and the polar plate for alignment bonding, so that the bonding is firm and the positioning is accurate.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a method for pasting a bipolar plate sealing ring of a proton exchange membrane fuel cell.
Background
The proton exchange film fuel cell is one kind of electrochemical cell device comprising bipolar plate and laminated film electrode. The proton exchange membrane fuel cell introduces reactant hydrogen and air (or oxygen) through the bipolar plate, electrochemical reaction occurs on the membrane electrode, then the product, excessive gas and electricity and heat are discharged through the bipolar plate, and the bipolar plate plays roles of mass transfer, electric conduction and heat dissipation. In the proton exchange membrane fuel cell device, three media are arranged, namely, hydrogen needed by a cell cathode, oxygen needed by a cell anode (or air containing oxygen), product water or water vapor and cooling agent with heat dissipation effect are adopted, in general, three chambers are arranged in the proton exchange membrane fuel cell structure, namely, an anode chamber, a cathode chamber and a cooling chamber respectively, and the three chambers are mutually isolated and respectively sealed, so that a sealing structure part is arranged between a bipolar plate and a membrane electrode in the proton exchange membrane fuel cell device, the sealing structure part is generally made of an elastomer polymer material, the sealing structure part can be manufactured by compounding a certain process with the bipolar plate or the membrane electrode, for example, a method of manufacturing the sealing structure part on a bipolar plate or a membrane electrode frame by adopting a liquid glue dispensing process, a printing process, a glue injection process and the like is adopted, however, the glue dispensing process has poor dimensional accuracy, printing is not suitable for controlling the thickness and the glue injection yield, and the greatest disadvantage that the bipolar plate or the membrane electrode is required to be directly compounded, the bipolar plate and the membrane electrode is a key core member of the fuel cell, and the bipolar plate and the membrane electrode are more or less severely damaged when the bipolar plate and the bipolar plate or the membrane electrode are subjected to fault operation and the fault or the manufacturing process is caused. In addition, the sealing structure part can also be manufactured independently, namely, a formed sealing ring is manufactured, the sealing ring is adhered to the bipolar plate, and then the sealing ring is assembled with the membrane electrode to form the fuel cell.
Disclosure of Invention
In view of the above, the invention discloses a method for pasting a bipolar plate sealing ring of a proton exchange membrane fuel cell, which aims at designing and pasting a sealing member of the proton exchange membrane fuel cell. The method is particularly suitable for pasting the formed sealing rings such as ethylene propylene diene monomer rubber, silicone rubber and the like, the manufacturing process of the sealing member is simple and feasible, the cost is low, and the sealing rings are accurate in positioning and reliable in bonding strength.
For this purpose, the invention provides the following technical scheme:
the invention provides a method for pasting a bipolar plate sealing ring of a proton exchange membrane fuel cell, which comprises the following steps:
the polar plate is arranged on the polar plate positioning tool by utilizing the positioning rod, the first installation positioning hole on the polar plate and the first positioning hole on the polar plate positioning tool;
brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool;
positioning by using a positioning rod, a first positioning hole on a polar plate positioning tool and a second mounting positioning hole on a prime glue tool, reversely buckling the prime glue tool to the polar plate positioning tool, and transferring prime glue to a polar plate bonding surface;
installing a sealing ring to a sealing ring positioning tool;
brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool;
positioning the primer rubber tool by using a positioning rod, a second positioning hole on the sealing ring positioning tool and a second installation positioning hole on the primer rubber tool, reversely buckling the primer rubber tool to the sealing ring positioning tool, and transferring primer rubber to the bonding surface of the sealing ring;
and taking down the polar plate after the glue is dried, and pressing the bonding surface of the polar plate on the bonding surface of the sealing ring by using the positioning rod.
Further, the proton exchange membrane fuel cell bipolar plate comprises: the fluid inlet and the fluid outlet are respectively arranged at two opposite side edges of the bipolar plate, and the flow field is arranged between the fluid inlet and the fluid outlet and communicated with the two flow fields, wherein the flow field comprises an air/oxygen flow field, a fuel gas flow field and a cooling medium flow field, the cooling medium flow field is arranged at one side surface of the bipolar plate, and the air/oxygen flow field or the fuel gas flow field is arranged at the other opposite side surface of the cooling medium flow field; the fluid outlet comprises at least one air/oxygen outlet, a fuel gas outlet and a cooling medium outlet, and the fluid inlet comprises at least one air/oxygen inlet, a fuel gas inlet and a cooling medium inlet; the fuel gas outlet and the cooling medium outlet are arranged on the same side of the bipolar plate, and the fuel gas inlet and the cooling medium inlet are opposite to the fuel gas outlet and the cooling medium outlet; the air/oxygen outlet is arranged on the other side of the bipolar plate which is positioned on the side where the fuel gas outlet and the cooling medium outlet are positioned, and the air/oxygen inlet is opposite to the air/oxygen outlet;
the bipolar plate is of a rectangular structure, and two opposite angles of the rectangle are respectively provided with a first mounting and positioning hole.
Further, the seal ring includes: the sealing ring comprises a sealing ring body and a pressing strip connected with the sealing ring body into a whole;
the sealing washer body includes: a flow field rubber ring, a fluid outlet rubber ring and a fluid inlet rubber ring; the shape of each sealing ring is matched with the contours of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate, and the positions of each sealing ring are corresponding to the positions of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate;
the beads have projecting ends at each of the fluid inlet and the fluid outlet, with each bead projecting end having an aperture therein.
Further, the polar plate positioning tool comprises: a first positioning plate and a first positioning hole; the first positioning plate is rectangular and has a size larger than that of the bipolar plate, and two first positioning holes are respectively positioned at two opposite angles of the first positioning plate and correspond to two first installation positioning holes on the bipolar plate.
Further, the sealing ring positioning tool comprises: the second positioning plate, the shallow groove, the second positioning hole and the screw hole; the second positioning plate is rectangular and has the same size and shape as the first positioning plate, and a shallow groove is formed in the center of the second positioning plate and used for placing the sealing ring body; the screw holes are multiple, the position of each screw hole corresponds to the hole on the extending end of the pressing strip, and the screw holes are used for positioning and installing pins; the 2 second positioning holes are respectively positioned at two opposite angles of the second positioning plate and correspond to the two first installation positioning holes on the polar plate.
Further, the primer fixture is designed according to the shape of the bonding surface of the sealing ring, and second mounting and positioning holes corresponding to the first mounting and positioning holes on the polar plate are formed in two opposite angles.
Further, the gluing surface of the primer gluing tool is a plane and a glue depositing groove, or the adapter plate is selected according to the glue types.
Further, after the primer is transferred to the bonding surface of the polar plate, the method further comprises:
scraping the prime coating glue on the polar plate by using a hairbrush or a glue plate, and airing;
after the primer is transferred onto the bonding surface of the sealing ring, the method further comprises the steps of: and (3) uniformly spreading the upper and lower surfaces of the sealing ring by using a hairbrush or a rubber plate, airing the rubber according to a primer coating process, and cutting off the pressing bar at the pressing bar position of the sealing ring.
Further, the pole plate bonding surface is buckled on the sealing ring bonding surface by utilizing the positioning rod, and the method comprises the following steps:
the sealing ring is firmly bonded with the polar plate by pressing the polar plate by using a paperboard isolation cover, and the bottom is solidified and glued.
Further, the sealing ring is an ethylene propylene diene monomer rubber and silicone rubber formed sealing ring.
The invention has the advantages and positive effects that: according to the invention, the polar plate positioning tool, the sealing ring positioning tool and the primer positioning tool are used for positioning the polar plate and the sealing ring by utilizing the positioning rod and the positioning hole, and the primer is coated on the bonding part of the sealing ring and the polar plate for alignment bonding, so that the bonding is firm and the positioning is accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic illustration of a bipolar plate on a single side and a seal ring in an embodiment of the invention;
FIG. 2 is a schematic illustration of a seal ring bonded to a plate in accordance with an embodiment of the present invention;
FIG. 3 is a polar plate positioning tool in an embodiment of the invention;
FIG. 4 is a seal ring in an embodiment of the invention;
FIG. 5 is a seal ring positioning tool in an embodiment of the invention;
FIG. 6 is a primer fixture in an embodiment of the invention;
FIG. 7 is a schematic illustration of primer coating on the bonding surface of the electrode plate in an embodiment of the invention;
FIG. 8 is a schematic illustration of priming the bonding surface of the seal ring in accordance with an embodiment of the present invention;
in the figure, 1, a polar plate; 2. assembling the positioning holes; 3. a seal ring body; 30. pressing strips; 31. shallow grooves; 32. a screw hole; 4. a primer coating tool; a. polar plate positioning tool; a1, a positioning rod; a2, a first positioning hole; b. positioning a sealing ring tool; b2, a second positioning hole; c. and (5) a rubber plate.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides a method for pasting a bipolar plate sealing ring of a proton exchange membrane fuel cell, which is to coat bottom glue on the pasting parts of the sealing ring and a polar plate for para-position pasting, so as to ensure firm pasting and accurate positioning.
As shown in fig. 1, a bipolar plate of a proton exchange membrane fuel cell according to an embodiment of the present invention includes: the fluid inlet and the fluid outlet are respectively arranged at two opposite side edges of the bipolar plate, and the flow field is arranged between the fluid inlet and the fluid outlet and communicated with the two flow fields, wherein the flow field comprises an air/oxygen flow field, a fuel gas flow field and a cooling medium flow field, the cooling medium flow field is arranged at one side surface of the bipolar plate, and the air/oxygen flow field or the fuel gas flow field is arranged at the other opposite side surface of the cooling medium flow field; the fluid outlet comprises at least one air/oxygen outlet, a fuel gas outlet and a cooling medium outlet, and the fluid inlet comprises at least one air/oxygen inlet, a fuel gas inlet and a cooling medium inlet; the fuel gas outlet and the cooling medium outlet are arranged on the same side of the bipolar plate, and the fuel gas inlet and the cooling medium inlet are opposite to the fuel gas outlet and the cooling medium outlet; the air/oxygen outlet is arranged on the other side of the bipolar plate on the side where the fuel gas outlet and the cooling medium outlet are located, and the air/oxygen inlet is arranged opposite to the air/oxygen outlet.
The bipolar plate can be of a polygonal structure, preferably the bipolar plate is of a rectangular structure, and two opposite corners of the bipolar plate are respectively provided with a first mounting positioning hole for positioning and mounting with the polar plate positioning tool and the primer coating tool.
The sealing washer body includes: a flow field seal ring, a fluid outlet seal ring, and a fluid inlet seal ring; the shape of each sealing ring is completely consistent with the contours of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate, and the positions of each sealing ring are also completely consistent with the positions of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate, and the sealing ring is in a hexagonal structure in the embodiment.
A schematic illustration of the bonding of the seal ring to the plate is shown in fig. 2.
In order to attach the seal ring and the polar plate in a contraposition manner, in the embodiment of the invention, a polar plate positioning tool is provided, and the polar plate positioning tool is used for positioning the polar plate, as shown in fig. 3, and comprises: a first positioning plate and a first positioning hole; the first positioning plate is rectangular plate-shaped, the size of the first positioning plate is larger than that of the bipolar plate, two first positioning holes are respectively formed in two opposite angles of the first positioning plate and correspond to two mounting positioning holes in the polar plate, and the first positioning holes can be used for the positioning rods to pass through.
As shown in fig. 4, the sealing ring in the embodiment of the invention further comprises a pressing strip connected with the sealing ring into a whole, wherein the pressing strip has a total of 6 pressing strip extending ends at each fluid inlet and fluid outlet, and each pressing strip extending end is provided with a hole. As shown in fig. 4, a fixed pressing strip integrated with the rubber ring is designed at the edge part of the formed sealing ring, and the pressing strip is used for fixing the rubber ring without sliding and shifting when the adhesive surface of the rubber ring is coated with a bottom coating, so that the adhesive operation is facilitated; the pressing strip can be cut off, and sealing is not affected.
The embodiment of the invention also provides a sealing ring positioning tool, which is used for placing the sealing ring and positioning the sealing ring. As shown in fig. 5, the seal ring positioning tool includes: the second positioning plate, the shallow groove, the second positioning hole and the screw hole; the second positioning plate is rectangular and has the same size and shape as the first positioning plate, and a shallow groove is formed in the center of the second positioning plate and used for placing the sealing ring body; the screw holes are multiple, the position of each screw hole corresponds to the hole on the extending end of the pressing strip on the sealing ring body, and the screw holes can be used for positioning and installing pins; the 2 second locating holes are positioned at two opposite angles of the second locating plate, and the second locating holes can be used for the locating rod to pass through.
The embodiment of the invention also provides a primer coating tool, as shown in fig. 6, which is designed according to the shape of the bonding surface of the sealing ring, wherein two opposite corners of the tool are provided with second mounting and positioning holes corresponding to the first mounting and positioning holes on the polar plate, primer coating is pre-coated on the surface of the tool when the tool is used, primer coating is transferred onto the bonding surface, and the primer coating and the coating positioning can be controlled. The surface of the primer coating tool can be a plane or other shapes, such as a glue depositing groove, or the surface of the primer coating tool can select an adapter plate according to the type of glue. The tool surface cleaning is facilitated.
The primer on the bonding surface of the polar plate is shown in fig. 7, firstly, the positioning rod is arranged in the first positioning hole, the polar plate is positioned and arranged on the polar plate positioning tool through the first mounting positioning hole, the primer is brushed on the surface of the primer tool by a glue dispenser or other conventional glue brushing tools, the primer tool is reversely buckled on the polar plate positioning tool by the positioning rod and the second mounting positioning hole, the primer is transferred onto the bonding surface of the polar plate, the primer on the polar plate is scraped uniformly by a hairbrush or a glue plate, and the polar plate is dried for a while.
The bonding surface of the sealing ring is coated with bottom glue, as shown in fig. 8, a pin is fixed to a screw hole, a positioning rod penetrates through a second positioning hole, a pressing bar corresponding to the sealing ring body is arranged in alignment with the pin (xd) for fixation, and a pressing cap (gm) is used for pressing the adhesive tape, so that the adhesive tape fixation is completed; and (3) brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or other conventional glue brushing tools, positioning by using a positioning rod and a second mounting positioning hole, reversely buckling the bottom glue coating tool on the sealing ring positioning tool, transferring the bottom glue coating onto the bonding surface of the sealing ring, uniformly scraping the bottom glue coating on the sealing ring by using a hairbrush or a glue plate, airing the glue according to a bottom glue coating process, and cutting off a pressing bar at the pressing bar position of the sealing ring.
And taking down the polar plate with the glue well dried, using a positioning rod to fix the bonding surface of the polar plate and buckling the polar plate on the adhesive tape, and pressing the polar plate by using a paperboard to isolate and cover the polar plate for protecting the surface of the polar plate, so that the sealing ring is firmly bonded with the polar plate, and the bottom is solidified for gluing.
The method is suitable for pasting the formed sealing ring, in particular to sealing rings such as ethylene propylene diene monomer rubber, silicone rubber and the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The method for pasting the bipolar plate sealing ring of the proton exchange membrane fuel cell is characterized by comprising the following steps of:
the polar plate is arranged on the polar plate positioning tool by utilizing the positioning rod, the first installation positioning hole on the polar plate and the first positioning hole on the polar plate positioning tool;
brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool;
positioning by using a positioning rod, a first positioning hole on a polar plate positioning tool and a second mounting positioning hole on a prime glue tool, reversely buckling the prime glue tool to the polar plate positioning tool, and transferring prime glue to a polar plate bonding surface;
installing a sealing ring to a sealing ring positioning tool;
brushing the bottom glue on the surface of the bottom glue coating tool by using a glue dispenser or a glue brushing tool;
positioning the primer rubber tool by using a positioning rod, a second positioning hole on the sealing ring positioning tool and a second installation positioning hole on the primer rubber tool, reversely buckling the primer rubber tool to the sealing ring positioning tool, and transferring primer rubber to the bonding surface of the sealing ring;
and taking down the polar plate after the glue is dried, and pressing the bonding surface of the polar plate on the bonding surface of the sealing ring by using the positioning rod.
2. The method for attaching a bipolar plate seal ring of a proton exchange membrane fuel cell according to claim 1, wherein the bipolar plate of the proton exchange membrane fuel cell comprises: the fluid inlet and the fluid outlet are respectively arranged at two opposite side edges of the bipolar plate, and the flow field is arranged between the fluid inlet and the fluid outlet and communicated with the two flow fields, wherein the flow field comprises an air/oxygen flow field, a fuel gas flow field and a cooling medium flow field, the cooling medium flow field is arranged at one side surface of the bipolar plate, and the air/oxygen flow field or the fuel gas flow field is arranged at the other opposite side surface of the cooling medium flow field; the fluid outlet comprises at least one air/oxygen outlet, a fuel gas outlet and a cooling medium outlet, and the fluid inlet comprises at least one air/oxygen inlet, a fuel gas inlet and a cooling medium inlet; the fuel gas outlet and the cooling medium outlet are arranged on the same side of the bipolar plate, and the fuel gas inlet and the cooling medium inlet are opposite to the fuel gas outlet and the cooling medium outlet; the air/oxygen outlet is arranged on the other side of the bipolar plate which is positioned on the side where the fuel gas outlet and the cooling medium outlet are positioned, and the air/oxygen inlet is opposite to the air/oxygen outlet;
the bipolar plate is of a rectangular structure, and two opposite angles of the rectangle are respectively provided with a first mounting and positioning hole.
3. The method for attaching a bipolar plate seal ring for a proton exchange membrane fuel cell according to claim 2, wherein said seal ring comprises: the sealing ring comprises a sealing ring body and a pressing strip connected with the sealing ring body into a whole;
the sealing washer body includes: a flow field rubber ring, a fluid outlet rubber ring and a fluid inlet rubber ring; the shape of each sealing ring is matched with the contours of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate, and the positions of each sealing ring are corresponding to the positions of each part of the flow field, the fluid outlet and the fluid inlet in the bipolar plate;
the beads have projecting ends at each of the fluid inlet and the fluid outlet, with each bead projecting end having an aperture therein.
4. The method for adhering a bipolar plate sealing ring of a proton exchange membrane fuel cell according to claim 3, wherein the polar plate positioning tool comprises: a first positioning plate and a first positioning hole; the first positioning plate is rectangular and has a size larger than that of the bipolar plate, and two first positioning holes are respectively positioned at two opposite angles of the first positioning plate and correspond to two first installation positioning holes on the bipolar plate.
5. The method for attaching a bipolar plate seal ring of a proton exchange membrane fuel cell according to claim 4, wherein the seal ring positioning tool comprises: the second positioning plate, the shallow groove, the second positioning hole and the screw hole; the second positioning plate is rectangular and has the same size and shape as the first positioning plate, and a shallow groove is formed in the center of the second positioning plate and used for placing the sealing ring body; the screw holes are multiple, the position of each screw hole corresponds to the hole on the extending end of the pressing strip, and the screw holes are used for positioning and installing pins; the 2 second positioning holes are respectively positioned at two opposite angles of the second positioning plate and correspond to the two first installation positioning holes on the polar plate.
6. The method for attaching a bipolar plate seal ring of a proton exchange membrane fuel cell according to claim 4, wherein the primer fixture is designed according to the shape of the bonding surface of the seal ring, and second mounting and positioning holes corresponding to the first mounting and positioning holes on the bipolar plate are formed at two opposite corners.
7. The method for sticking a bipolar plate sealing ring of a proton exchange membrane fuel cell according to claim 6, wherein the glue coating surface of the primer coating tool is a plane, a glue deposition groove, or an adapter plate is selected according to the type of glue.
8. The method for attaching a bipolar plate seal ring for a proton exchange membrane fuel cell according to claim 1, further comprising, after transferring primer to the plate bonding surface:
scraping the prime coating glue on the polar plate by using a hairbrush or a glue plate, and airing;
after the primer is transferred onto the bonding surface of the sealing ring, the method further comprises the steps of: and (3) uniformly spreading the upper and lower surfaces of the sealing ring by using a hairbrush or a rubber plate, airing the rubber according to a primer coating process, and cutting off the pressing bar at the pressing bar position of the sealing ring.
9. The method for attaching a bipolar plate seal ring of a proton exchange membrane fuel cell according to claim 1, wherein the step of pressing the plate bonding surface against the seal ring bonding surface by using a positioning rod comprises:
the sealing ring is firmly bonded with the polar plate by pressing the polar plate by using a paperboard isolation cover, and the bottom is solidified and glued.
10. The method for sticking the bipolar plate sealing ring of the proton exchange membrane fuel cell according to claim 1, wherein the sealing ring is an ethylene propylene diene monomer rubber type and silicone rubber type formed sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310975634.8A CN117039041A (en) | 2023-08-03 | 2023-08-03 | Method for pasting bipolar plate sealing ring of proton exchange membrane fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310975634.8A CN117039041A (en) | 2023-08-03 | 2023-08-03 | Method for pasting bipolar plate sealing ring of proton exchange membrane fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117039041A true CN117039041A (en) | 2023-11-10 |
Family
ID=88629225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310975634.8A Pending CN117039041A (en) | 2023-08-03 | 2023-08-03 | Method for pasting bipolar plate sealing ring of proton exchange membrane fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117039041A (en) |
-
2023
- 2023-08-03 CN CN202310975634.8A patent/CN117039041A/en active Pending
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