CN114937801A - Fuel cell end plate outlet connecting structure - Google Patents

Fuel cell end plate outlet connecting structure Download PDF

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Publication number
CN114937801A
CN114937801A CN202210470935.0A CN202210470935A CN114937801A CN 114937801 A CN114937801 A CN 114937801A CN 202210470935 A CN202210470935 A CN 202210470935A CN 114937801 A CN114937801 A CN 114937801A
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CN
China
Prior art keywords
end plate
annular
fuel cell
outlet hole
material layer
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.)
Pending
Application number
CN202210470935.0A
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Chinese (zh)
Inventor
麦建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai H Rise New Energy Technology Co Ltd
Original Assignee
Shanghai H Rise New Energy Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai H Rise New Energy Technology Co Ltd filed Critical Shanghai H Rise New Energy Technology Co Ltd
Priority to CN202210470935.0A priority Critical patent/CN114937801A/en
Publication of CN114937801A publication Critical patent/CN114937801A/en
Pending legal-status Critical Current

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    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/086—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe fixed with screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing the pipe
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
    • H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fuel Cell (AREA)

Abstract

The invention relates to a fuel cell end plate outlet connecting structure, which comprises an end plate and a joint pipe, wherein the end plate is provided with an outlet hole for connecting the joint pipe. Compared with the prior art, the invention has the advantages of simple installation mode, firm and stable connection structure and the like.

Description

Fuel cell end plate outlet connecting structure
Technical Field
The invention relates to the field of fuel cells, in particular to a fuel cell end plate outlet connecting structure.
Background
The end plates of the fuel cell are arranged at two sides of the reactor core, and are provided with various outlet holes for water inlet, water outlet, air inlet and air outlet, and the outlet holes are used for butting with external joint pipes. The existing butt joint mode is usually that a joint pipe is directly inserted into an outlet hole, so that the sealing performance and the connection strength of a joint are low, and the joint is easy to fall off. To overcome this problem, the conventional joint pipe and outlet hole are also provided with a docking mechanism having a complicated structure for interconnection, but are liable to cause inconvenience in installation operation and are not easily replaced and maintained.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a fuel cell end plate outlet connection structure that improves connection stability and operation convenience.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a fuel cell end plate exit linkage, includes end plate and adapter tube, be equipped with the exit hole that is used for the attach fitting pipe on the end plate, its characterized in that, exit linkage still includes annular chimb and annular lock and cramps the piece, the annular chimb sets up in the one end edge of exit hole, the one end of adapter tube is nested and the joint is in annular chimb outer lane, annular lock cramps the piece and cup joints outside the adapter tube, makes the one end centre gripping of adapter tube between annular chimb outer wall and annular lock cramps a piece inner wall.
Optionally, the annular flange and the end plate are of a unitary structure.
Optionally, the joint pipe further comprises a cladding material layer, the cladding material layer wraps the annular convex edge, the inner wall of the outlet hole and the edge of the end plate at the other end of the outlet hole, and a protrusion is formed on the cladding material layer on the outer side of the annular convex edge and used for abutting against a tabling groove in the inner wall of one end of the joint pipe.
Optionally, annular chimb and end plate are split type structure, be equipped with one in the exit hole in its interference fit connection's spacing pipe, the one end of spacing pipe stretches out from the exit hole and forms annular chimb.
Optionally, the other end of the limiting pipe is provided with a baffle, and the baffle is attached to one side end face of the end plate.
Optionally, the limiting pipe is wrapped by a coating material layer, and the coating material layer forms a protruding portion on the outer side of the annular convex edge and is used for abutting against a tabling groove in the inner wall of one end of the joint pipe.
Optionally, annular chimb and end plate are split type structure, annular chimb is connected with a tubular member, the one end of tubular member is equipped with the limiting plate, and the tubular member passes the exit hole and makes the edge of exit hole fix between annular chimb and limiting plate.
Optionally, the inner wall of the annular gripping member is provided with a pattern for increasing the friction between the annular gripping member and the joint pipe.
Optionally, the annular clinch member is fixed to the end plate by bolts.
Optionally, the coating material layer is an injection molding plastic layer, a light-cured resin layer, a synthetic rubber layer or a ceramic layer. .
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the annular convex edge and the annular clamping piece are designed at the outlet hole, one end of the joint pipe is clamped by the annular convex edge, and then the annular clamping piece is adopted to ensure fixation, so that the installation mode is simple, and the connection structure is firm and stable.
2. The annular convex edge and the outlet hole can be provided with the coating material layer, so that the bulge for clamping is arranged on the coating material layer, the structure is ensured to be wear-resistant and good in toughness, and the corrosion resistance of the joint can be obviously improved.
3. The annular convex edge and the end plate are of a split structure, the difficulty of the manufacturing process is reduced, the annular convex edge and the end plate can be replaced after being damaged, and the flexibility is good.
4. The inner wall of the annular clamping piece is provided with patterns, so that the friction force between the annular clamping piece and the joint pipe is improved, and the connection strength is improved.
5. The annular clamping piece and the end plate are connected through the bolts, and the connection strength is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
Fig. 2 is a schematic structural diagram of the second embodiment.
Fig. 3 is a schematic structural diagram of the third embodiment.
Reference numerals are as follows: 1. the device comprises an end plate 101, an outlet hole 2, a joint pipe 3, an annular convex edge 4, an annular clamping piece 5, a coating material layer 6, an end plate edge 7, a convex part 8, an embedded groove 9, a limiting pipe 10, a baffle plate 11, a tubular piece 12, a limiting plate 13 and a bolt.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example one
As shown in fig. 1, the present embodiment provides a fuel cell end plate outlet connection structure including an end plate 1 and a joint pipe 2, and an outlet hole 101 for connecting the joint pipe 2 is provided in the end plate 1. The outlet connection further comprises an annular flange 3 and an annular clamping member 4, the annular flange 3 is arranged at one end edge of the outlet hole 101, and the annular flange 3 and the end plate 1 are of an integral structure. One end of the joint pipe 2 is nested and clamped on the outer ring of the annular convex edge 3, so that the joint pipe 2 can be butted with the outlet hole 101. The annular clamping piece 4 is sleeved outside the joint pipe 2, so that one end of the joint pipe 2 is clamped between the outer wall of the annular convex edge 3 and the inner wall of the annular clamping piece 4.
In this embodiment, the outlet connection structure further comprises a covering material layer 5, and the covering material layer 5 wraps the annular flange 3, the inner wall of the outlet hole 101, and the end plate edge 6 at one end of the outlet hole 101. The coating material layer 5 forms a convex part 7 on the outer side of the annular convex edge 3, an embedding groove 8 is formed in the inner wall of one end of the butt joint pipe 2, and the convex part 7 and the embedding groove 8 mutually form a clamping structure. The coating material layer 5 can be made of common wear-resistant materials, such as injection molding plastic layers, light-cured resin layers, synthetic rubber layers or ceramic layers, and has insulation property and certain mechanical strength. Injection molded plastic layers are preferred in this embodiment. The coating material layer 5 ensures that the structure is wear-resistant and has good toughness, and the corrosion resistance of the joint can be obviously improved. In this embodiment, in order to reduce the flow resistance of the fluid transition between the adapter tube 2 and the outlet hole 101, the covering material layer 5 may be designed as a slope (not shown) to achieve a gradual change of the cross-sectional area of the fluid passage. The annular flange 3 in the covering material layer 5 can also be designed with a corresponding bevel.
In this embodiment, the inner wall of the annular clamping member 4 is provided with patterns for improving the friction between the annular clamping member 4 and the joint pipe 2, and for improving the connection strength between the annular clamping member and the joint pipe 2. The annular clamping member 4 is also provided with a through hole, and the annular clamping member 4 can be fixed on the end plate 1 through the through hole by using a bolt 13, so that the connection strength is further improved.
Example two
As shown in fig. 2, the present embodiment provides a fuel cell end plate outlet connection structure including an end plate 1 and a joint pipe 2, and an outlet hole 101 for connecting the joint pipe 2 is provided on the end plate 1. The outlet connection structure further comprises an annular flange 3 and an annular clamping member 4, the annular flange 3 is arranged at one end edge of the outlet hole 101, and the annular flange 3 and the end plate 1 are of a split structure. Specifically, a limiting pipe 9 is arranged in the outlet hole 101 and connected with the outlet hole in an interference fit mode, and one end of the limiting pipe 9 extends out of the outlet hole 101 to form the annular convex edge 3. One end of the joint pipe 2 is nested and clamped on the outer ring of the annular convex edge 3, so that the joint pipe 2 can be butted with the outlet hole 101. The annular clamping piece 4 is sleeved outside the joint pipe 2, so that one end of the joint pipe 2 is clamped between the outer wall of the annular convex edge 3 and the inner wall of the annular clamping piece 4.
In this embodiment, the lower end of the limiting tube 9 is provided with a baffle 10, and the baffle 10 is used for attaching to one side end face of the end plate 1, so that the limiting tube 9 can be smoothly positioned after being installed in the outlet hole 101.
In this embodiment, the outside of the limiting pipe 9 is wrapped by the coating material layer 5, and the coating material layer 5 forms a protrusion outside the annular convex edge 3, so as to be used for being abutted against the embedding groove 8 on the inner wall of one end of the joint pipe 2. The coating material layer 5 forms a convex part 7 on the outer side of the annular convex edge 3, an embedding groove 8 is formed in the inner wall of one end of the butt joint pipe 2, and the convex part 7 and the embedding groove 8 mutually form a clamping structure. The coating material layer 5 can be made of common wear-resistant materials, such as injection molding plastic layers, light-cured resin layers, synthetic rubber layers or ceramic layers, and has insulation property and certain mechanical strength. Injection molded plastic layers are preferred in this embodiment. The coating material layer 5 ensures that the structure is wear-resistant and has good toughness, and the corrosion resistance of the joint can be obviously improved.
In this embodiment, the inner wall of the annular clamping member 4 is provided with patterns for improving the friction between the annular clamping member 4 and the joint pipe 2, and for improving the connection strength between the annular clamping member and the joint pipe 2. The annular clamping piece 4 is also provided with a through hole, and the annular clamping piece 4 can be fixed on the end plate 1 through the through hole by using a bolt 13, so that the connection strength is further improved.
EXAMPLE III
As shown in fig. 3, the present embodiment provides a fuel cell end plate outlet connection structure including an end plate 1 and a joint pipe 2, and an outlet hole 101 for connecting the joint pipe 2 is provided on the end plate 1. The outlet connection structure further comprises an annular flange 3 and an annular clamping member 4, the annular flange 3 is arranged at one end edge of the outlet hole 101, and the annular flange 3 and the end plate 1 are of a split structure. In particular, the annular flange 3 is associated with a tubular element 11, one end of the tubular element 11 being provided with a limit plate 12, the tubular element 11 passing through the outlet hole 101 so that the edge of the outlet hole 101 is fixed between the annular flange 3 and the limit plate 12. This configuration allows the annular rim 3 to be secured to the outlet opening 101. One end of the joint pipe 2 is nested and clamped on the outer ring of the annular convex edge 3, so that the joint pipe 2 can be butted with the outlet hole 101. The annular clamping piece 4 is sleeved outside the joint pipe 2, so that one end of the joint pipe 2 is clamped between the outer wall of the annular convex edge 3 and the inner wall of the annular clamping piece 4.
In this embodiment, the outer portion of the top of the annular flange 3 is wrapped by the covering material layer 5, and the tubular member 11 and the limiting plate 12 are directly formed by the covering material layer 5. The coating material layer 5 forms a bulge on the outer side of the annular convex edge 3 and is used for butting a tabling groove 8 on the inner wall of one end of the joint pipe 2. The coating material layer 5 forms a convex part 7 on the outer side of the annular convex edge 3, an embedded groove 8 is formed in the inner wall of one end of the butt joint pipe 2, and the convex part 7 and the embedded groove 8 form a clamping structure mutually. The coating material layer 5 can be made of common wear-resistant materials, such as injection molding plastic layers, light-cured resin layers, synthetic rubber layers or ceramic layers, and has insulation property and certain mechanical strength. Injection molded plastic layers are preferred in this embodiment. The coating material layer 5 ensures that the structure is wear-resistant and has good toughness, and the corrosion resistance of the joint can be obviously improved.
In this embodiment, the annular clamping member 4 is further provided with a through hole, and the annular clamping member 4 can be fixed on the end plate 1 by the bolt 13 through the through hole, so that the connection strength is further improved.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a fuel cell end plate exit linkage, includes end plate (1) and adapter tube (2), be equipped with outlet hole (101) that are used for attach fitting pipe (2) on end plate (1), its characterized in that, exit linkage still includes annular chimb (3) and annular tightening piece (4), annular chimb (3) set up in the one end edge of outlet hole (101), the one end of adapter tube (2) is nested and the joint is in annular chimb (3) outer lane, annular tightening piece (4) cup joint outside adapter tube (2), makes the one end centre gripping of adapter tube (2) between annular chimb (3) outer wall and annular tightening piece (4) inner wall.
2. A fuel cell end plate outlet connection according to claim 1, characterized in that the annular flange (3) and the end plate (1) are of one-piece construction.
3. The fuel cell end plate outlet connection structure of claim 2, further comprising a covering material layer (5), wherein the covering material layer (5) covers the annular flange (3), the inner wall of the outlet hole (101), and the end plate edge (6) at the other end of the outlet hole (101), and the covering material layer (5) forms a protrusion (7) at the outer side of the annular flange (3) for abutting against the fitting groove (8) of the inner wall at one end of the joint pipe (2).
4. The fuel cell end plate outlet connection structure of claim 1, wherein the annular flange (3) and the end plate (1) are of a split structure, a limiting pipe (9) is arranged in the outlet hole (101) and connected with the outlet hole in an interference fit mode, and one end of the limiting pipe (9) extends out of the outlet hole (101) to form the annular flange (3).
5. A fuel cell end plate outlet connection structure according to claim 4, wherein the other end of the limiting pipe (9) is provided with a baffle plate (10), and the baffle plate (10) is attached to one side end face of the end plate (1).
6. The fuel cell end plate outlet connection structure of claim 4, wherein the limiting pipe (9) is externally wrapped by a cladding material layer (5), and the cladding material layer (5) forms a convex part (7) on the outer side of the annular convex edge (3) and is used for abutting against a fitting groove (8) of the inner wall of one end of the joint pipe (2).
7. The fuel cell end plate outlet connection structure of claim 1, wherein the annular flange (3) and the end plate (1) are of a split structure, the annular flange (3) is connected with a tubular member (11), one end of the tubular member (11) is provided with a limiting plate (12), and the tubular member (11) penetrates through the outlet hole (101) to fix the edge of the outlet hole (101) between the annular flange (3) and the limiting plate (12).
8. A fuel cell end plate outlet connection structure according to claim 1, wherein the annular band member (4) is provided on an inner wall thereof with a pattern for increasing a frictional force between the annular band member (4) and the joint pipe (2).
9. A fuel cell end plate outlet connection according to any one of claims 1 to 8, wherein the annular clamping member (4) is fixed to the end plate (1) by means of bolts (13).
10. A fuel cell end plate outlet connection according to claim 3 or 6, characterised in that the covering material layer (5) is an injection moulded plastic layer, a light cured resin layer, a synthetic rubber layer or a ceramic layer.
CN202210470935.0A 2022-04-28 2022-04-28 Fuel cell end plate outlet connecting structure Pending CN114937801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210470935.0A CN114937801A (en) 2022-04-28 2022-04-28 Fuel cell end plate outlet connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210470935.0A CN114937801A (en) 2022-04-28 2022-04-28 Fuel cell end plate outlet connecting structure

Publications (1)

Publication Number Publication Date
CN114937801A true CN114937801A (en) 2022-08-23

Family

ID=82861529

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210470935.0A Pending CN114937801A (en) 2022-04-28 2022-04-28 Fuel cell end plate outlet connecting structure

Country Status (1)

Country Link
CN (1) CN114937801A (en)

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