CN218928716U - Pressure forming die for flexible bipolar graphite plate of hydrogen fuel cell - Google Patents
Pressure forming die for flexible bipolar graphite plate of hydrogen fuel cell Download PDFInfo
- Publication number
- CN218928716U CN218928716U CN202222756342.9U CN202222756342U CN218928716U CN 218928716 U CN218928716 U CN 218928716U CN 202222756342 U CN202222756342 U CN 202222756342U CN 218928716 U CN218928716 U CN 218928716U
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- China
- Prior art keywords
- graphite plate
- fixedly arranged
- fuel cell
- pressure forming
- hydrogen fuel
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 79
- 239000010439 graphite Substances 0.000 title claims abstract description 79
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 21
- 239000001257 hydrogen Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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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
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- Fuel Cell (AREA)
Abstract
The utility model provides a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell, which relates to the technical field of dies and comprises a main support frame, wherein a support column is fixedly arranged at the bottom end of the inside of the main support frame, a hydraulic cylinder B is fixedly arranged at the top end of the inside of the main support frame, an upper die is fixedly arranged at the output end of the hydraulic cylinder B, a fixed table is fixedly arranged at the top end of the support column, a lower die is fixedly arranged at the top end of the fixed table, a hydraulic cylinder A is fixedly arranged in the middle of the bottom end of the inside of the main support frame, and a connecting plate is fixedly arranged at the output end of the hydraulic cylinder A. According to the utility model, through the arrangement of the fixed frame and the plurality of baffles, after the graphite plate is pressed, the periphery of the graphite plate is firstly demoulded, then the bottom end is demoulded, and the stress area of the bottom end of the graphite plate is increased due to the influence of the baffles, so that the graphite plate is more easily demoulded, the phenomenon that the graphite plate is damaged due to the demould after the graphite plate is pressed is avoided, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell.
Background
When hydrogen fuel cell is produced and manufactured, graphite is required to be pressed into a graphite plate, and at the moment, a graphite plate pressure forming die is required to be used, because the flexible bipolar graphite plate is high in hardness and poor in toughness, when the existing graphite plate pressure forming die is demoulded, if the graphite plate is too tight to be adhered to a lower die, the top end of a push rod is small, and when the push rod pushes out the graphite plate, the graphite plate is pushed to be split, so that unnecessary loss is caused, and the manufacturing efficiency is reduced, so that improvement is required.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a flexible bipolar graphite plate pressure forming die of hydrogen fuel cell, includes the main support frame, the inside bottom fixed mounting of main support frame has the support column, the inside top fixed mounting of main support frame has pneumatic cylinder B, pneumatic cylinder B's output fixed mounting has the cope, the top fixed mounting of support column has the fixed station, the top fixed mounting of fixed station has the bed die, the centre fixed mounting of the inside bottom of main support frame has pneumatic cylinder A, pneumatic cylinder A's output fixed mounting has the connecting plate, the top fixed mounting of connecting plate has the ejector pin, the top fixed mounting of ejector pin has the baffle, the inside bottom of main support frame is close to the position department fixed mounting of support column has pneumatic cylinder C, pneumatic cylinder C's output fixed mounting has fixed frame.
In order to enable the placement of the graphite plate pressure forming die to be more stable, the utility model is improved in that the bottom end of the main support frame is fixedly provided with a base.
In order to enable the top end of the baffle plate to be flush with the bottom end of the lower die when the baffle plate is retracted, the utility model is improved in that a groove is formed in the position, close to the ejector rod, of the top end of the lower die, and the ejector rod is connected with the fixed table and the lower die in a sliding manner.
In order to facilitate the demolding of the graphite plate, the utility model is improved in that the ejector rod is connected with the fixed plate in a sliding way.
In order to release the periphery of the graphite plate, the utility model is improved in that the fixed frame is connected with the lower die in a sliding way.
In order to exhaust air in graphite, the utility model is improved in that an exhaust mechanism is arranged in the upper die and comprises an exhaust pipe, the exhaust pipe penetrates through the inside of the upper die, a filter screen is fixedly arranged at one end, close to the bottom end of the upper die, of the exhaust pipe, and air outlets are formed in two sides of the upper die.
In order to facilitate the air to be discharged out of the die, the utility model is improved in that the air outlet hole is communicated with the exhaust pipe.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. according to the utility model, through the arrangement of the fixed frame and the plurality of baffles, after the graphite plate is pressed, the periphery of the graphite plate is firstly demoulded, then the bottom end is demoulded, and the stress area of the bottom end of the graphite plate is increased due to the influence of the baffles, so that the graphite plate is more easily demoulded, the phenomenon that the graphite plate is damaged due to the demould after the graphite plate is pressed is avoided, and the production efficiency is improved.
2. According to the utility model, when the graphite is pressed into the graphite plate, a small amount of air is contained in the graphite, the phenomenon of bubbles or rugged surface of the graphite plate can be caused when the graphite is pressed into the graphite plate due to the influence of the air, and the air in the graphite is discharged from the exhaust pipe when the graphite is pressed into the graphite plate due to the design of the filter screen and the exhaust pipe, so that the phenomenon of bubbles on the surface of the graphite plate due to the influence of the air when the graphite plate is pressed is avoided.
Drawings
Fig. 1 is a schematic diagram of a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell according to the present utility model;
fig. 2 is an enlarged view of a portion a in fig. 1 of a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell according to the present utility model;
fig. 3 is a schematic diagram of a partially exploded structure of a pressure forming die for a flexible bipolar graphite plate of a hydrogen fuel cell according to the present utility model;
fig. 4 is an enlarged view of a portion B of fig. 3 showing a flexible bipolar graphite plate press forming die for a hydrogen fuel cell in accordance with the present utility model;
fig. 5 is a bottom view of a flexible bipolar graphite plate pressure forming die for a hydrogen fuel cell in accordance with the present utility model;
fig. 6 is an enlarged view of C in fig. 5 showing a flexible bipolar graphite plate compression molding die for a hydrogen fuel cell according to the present utility model.
Legend description:
1. a main support frame; 2. a hydraulic cylinder A; 3. a base; 4. a hydraulic cylinder B; 5. an upper die; 6. a fixed frame; 7. a groove; 8. a lower die; 9. a baffle; 10. a push rod; 11. a fixed table; 12. a fixing plate; 13. a connecting plate; 14. a hydraulic cylinder C; 15. a support column; 16. an exhaust pipe; 17. a filter screen; 18. and an air outlet hole.
Detailed Description
In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.
Example 1
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a flexible bipolar graphite plate pressure forming die of hydrogen fuel cell, including main support 1, the inside bottom fixed mounting of main support 1 has support column 15, the bottom fixed mounting of main support 1 has base 3, the inside top fixed mounting of main support 1 has pneumatic cylinder B4, the output fixed mounting of pneumatic cylinder B4 has last mould 5, the top fixed mounting of support column 15 has fixed station 11, the top fixed mounting of fixed station 11 has bed die 8, sliding connection between fixed frame 6 and bed die 8, the position department that the top of bed die 8 is close to ejector pin 10 has seted up recess 7, the design of recess 7 is in order to make the baffle 9 at ejector pin 10 top move into recess 7 when ejector pin 10 moves down, sliding connection between ejector pin 10 and fixed station 11 and bed die 8, the centre fixed mounting of the inside bottom of main support 1 has pneumatic cylinder A2, the output fixed mounting of pneumatic cylinder A2 has connecting plate 13, the design of connecting plate 13 is in order to connect pneumatic cylinder A2 and a plurality of ejector pins 10, make the start-up of pneumatic cylinder A2 drive ejector pin 10 and remove.
Referring to fig. 3-4, the top end of the connecting plate 13 is fixedly provided with a push rod 10, the push rod 10 is slidably connected with the fixing plate 12, the top end of the push rod 10 is fixedly provided with a baffle 9, the baffle 9 is designed to increase the contact area between the graphite plate and the push rod 10, the push rod 10 cannot split the top of the graphite plate when ejecting the graphite plate, the position, close to the support column 15, of the bottom end inside the main support frame 1 is fixedly provided with a hydraulic cylinder C14, the output end of the hydraulic cylinder C14 is fixedly provided with a fixing frame 6, and the fixing frame 6 is designed to drive the fixing frame 6 to move by starting the hydraulic cylinder C14 after the graphite plate is pressed, so that the fixing frame 6 is separated from the graphite plate first, and the bottom end of the graphite plate is easier to be demolded.
Example two
Referring to fig. 5-6, an exhaust mechanism is disposed in the upper mold 5, the exhaust mechanism includes an exhaust pipe 16, the exhaust pipe 16 penetrates through the upper mold 5, a filter screen 17 is fixedly mounted at one end of the exhaust pipe 16 near the bottom end of the upper mold 5, two sides of the upper mold 5 are provided with air outlet holes 18, the air outlet holes 18 are communicated with the exhaust pipe 16, the filter screen 17 is designed to exhaust air in graphite through the exhaust pipe 16 when graphite is pressed into a graphite plate, and the filter screen 17 blocks graphite, so that graphite cannot move from the filter screen 17 to the exhaust.
Working principle: when the graphite plate pressure forming die works, graphite is firstly put into the lower die 8 to be paved, then the hydraulic cylinder B4 is started, the hydraulic cylinder B4 is connected with the upper die 5, the upper die 5 is driven to move downwards by the starting of the hydraulic cylinder B4 until the graphite on the lower die 8 is moved to the upper side of the lower die 8, graphite plate is pressed by graphite on the lower die 8, air in the graphite flows into the exhaust pipe 16 from the filter screen 17, the exhaust pipe 16 is communicated with the air outlet hole 18, the air in the graphite is discharged out of the die from the air outlet hole 18, after the graphite plate is pressed, the hydraulic cylinder B4 is started, the upper die 5 is returned to the original position, the hydraulic cylinder C14 is started, the hydraulic cylinder C14 is connected with the fixed frame 6, the fixed frame 6 is driven to move downwards by the starting of the hydraulic cylinder C14, the periphery of the graphite plate is demoulded, then the hydraulic cylinder A2 is started again, the baffle plate 9 at one end of the ejector rod 10 is driven to move upwards by the starting of the hydraulic cylinder A2 to the connecting plate 13, the graphite plate is driven to move upwards by the baffle plate 9 at one end of the ejector rod 10, and the graphite plate is ejected out of the graphite plate is pushed out of the connecting plate and the fixed frame 10, and the hydraulic cylinder C2 and the fixed to the fixed frame C2 is started after the graphite plate is moved to the fixed to the position by the fixed frame.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (7)
1. The utility model provides a flexible bipolar graphite plate pressure forming die of hydrogen fuel cell, includes main support frame (1), its characterized in that: the novel hydraulic support is characterized in that a support column (15) is fixedly arranged at the bottom end of the inside of the main support frame (1), a hydraulic cylinder B (4) is fixedly arranged at the top end of the inside of the main support frame (1), an upper die (5) is fixedly arranged at the output end of the hydraulic cylinder B (4), a fixing table (11) is fixedly arranged at the top end of the support column (15), a lower die (8) is fixedly arranged at the top end of the fixing table (11), a hydraulic cylinder A (2) is fixedly arranged in the middle of the bottom end of the inside of the main support frame (1), a connecting plate (13) is fixedly arranged at the output end of the hydraulic cylinder A (2), a push rod (10) is fixedly arranged at the top end of the connecting plate (13), a baffle (9) is fixedly arranged at the top end of the push rod (10), and a position, close to the support column (15), of the bottom end of the inside of the main support frame (1), of the hydraulic cylinder C (14) is fixedly arranged with a fixing frame (6).
2. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 1, wherein: the bottom end of the main support frame (1) is fixedly provided with a base (3).
3. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 1, wherein: the top end of the lower die (8) is provided with a groove (7) at a position close to the ejector rod (10), and the ejector rod (10) is connected with the fixed table (11) and the lower die (8) in a sliding manner.
4. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 1, wherein: the ejector rod (10) is connected with the fixed plate (12) in a sliding way.
5. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 1, wherein: the fixed frame (6) is connected with the lower die (8) in a sliding way.
6. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 1, wherein: the inside of last mould (5) is provided with exhaust mechanism, exhaust mechanism includes blast pipe (16), blast pipe (16) run through the inside that sets up last mould (5), one end fixed mounting that blast pipe (16) are close to last mould (5) bottom has filter screen (17), venthole (18) have all been seted up to the both sides of last mould (5).
7. The hydrogen fuel cell flexible bipolar graphite plate pressure forming die of claim 6, wherein: the air outlet hole (18) is communicated with the exhaust pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756342.9U CN218928716U (en) | 2022-10-19 | 2022-10-19 | Pressure forming die for flexible bipolar graphite plate of hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756342.9U CN218928716U (en) | 2022-10-19 | 2022-10-19 | Pressure forming die for flexible bipolar graphite plate of hydrogen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218928716U true CN218928716U (en) | 2023-04-28 |
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ID=86091965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222756342.9U Active CN218928716U (en) | 2022-10-19 | 2022-10-19 | Pressure forming die for flexible bipolar graphite plate of hydrogen fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218928716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117681478A (en) * | 2024-02-04 | 2024-03-12 | 西南石油大学 | A hydrogen fuel cell bipolar plate hydroforming integrated device |
-
2022
- 2022-10-19 CN CN202222756342.9U patent/CN218928716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117681478A (en) * | 2024-02-04 | 2024-03-12 | 西南石油大学 | A hydrogen fuel cell bipolar plate hydroforming integrated device |
| CN117681478B (en) * | 2024-02-04 | 2024-04-26 | 西南石油大学 | A hydrogen fuel cell bipolar plate hydraulic forming integrated device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Pressure Forming Mold for Flexible Bipolar Graphite Plate in Hydrogen Fuel Cells Granted publication date: 20230428 Pledgee: Foshan Rural Commercial Bank Co.,Ltd. Lanshi Branch Pledgor: Guangdong Huanhua Hydrogen Energy Technology Co.,Ltd. Registration number: Y2024980003117 |