IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0323854
(2005-12-30)
|
등록번호 |
US-7491355
(2009-02-17)
|
우선권정보 |
JP-2000-373418(2000-12-07); JP-2001-346686(2001-11-12) |
발명자
/ 주소 |
- Inoue,Masajiro
- Kimura,Nobuaki
- Suenaga,Toshihiko
- Andou,Keisuke
|
출원인 / 주소 |
- Honda Giken Kogyo Kabushiki Kaisha
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
7 |
초록
▼
A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced. The method comprises the steps of: forming a through hole in the separator body; providing a first
A method for fabricating a seal-integrated separator for a fuel cell is presented, with which seals can be accurately positioned and the assembling time for the fuel cell units may be greatly reduced. The method comprises the steps of: forming a through hole in the separator body; providing a first mold having grooves respectively positioned corresponding to the inner and outer seals disposed on one side of the separator body, a connecting cavity for forming a seal bridge at least partially connecting the inner and outer seals to each other at a position corresponding to the through hole, and at least one gate communicating with each of the grooves, and a second mold having grooves respectively positioned corresponding to the inner and outer seals disposed on the other side of the separator body, and a connecting cavity for forming a seal bridge at least partially connecting the inner and outer seals to each other at a position corresponding to the through hole; holding the separator body between the first mold and the second mold; and injecting melted seal material to form the seals into each of the grooves in the first mold by supplying the melted seal material into the gate and injecting a portion of the melted seal material into each of the grooves in the second mold via the through hole. Through this method, a seal-integrated separator having first to fourth seals which are integrated on both sides of the separator body is fabricated.
대표청구항
▼
What is claimed is: 1. A method for fabricating a seal-integrated separator for a fuel cell, said seal-integrated separator including a separator body and an inner seal and an outer seal which are integrated on both sides of said separator body and which are disposed, side by side, around an electr
What is claimed is: 1. A method for fabricating a seal-integrated separator for a fuel cell, said seal-integrated separator including a separator body and an inner seal and an outer seal which are integrated on both sides of said separator body and which are disposed, side by side, around an electrode's reaction surface during use, comprising the steps of: forming a through hole in said separator body; providing a first mold having grooves respectively positioned corresponding to said inner and outer seals disposed on a first side of said separator body, a connecting cavity for forming a seal bridge at least partially connecting said inner and outer seals to each other at a position corresponding to said through hole, and at least one gate communicating with each of said grooves, and a second mold having grooves respectively positioned corresponding to said inner and outer seals disposed on a second side of said separator body, and a connecting cavity for forming a seal bridge at least partially connecting said inner and outer seals to each other at a position corresponding to said through hole; holding said separator body between said first mold and said second mold; and injecting melted seal material to form said seals into each of said grooves in said first mold by supplying said melted seal material into said gate and injecting a portion of said melted seal material into each of said grooves in said second mold via said through hole, so that said inner and outer seals are formed adjacent to each other on the first side of said separator body, said inner and outer seals are formed adjacent to each other on the second side of said separator body, and said inner and outer seals formed on the first side of said separator body and said inner and outer seals formed on the second side of said separator body are formed at symmetrical positions about said separator body. 2. A method according to claim 1, wherein said melted seal material is separately supplied into each of said grooves corresponding to said inner and outer seals. 3. A method according to claim 2, wherein said gate is connected to a portion of said groove, said portion forming a sealing surface of said seals. 4. A method according to claim 2, wherein said gate is connected to a portion of said groove, said portion not forming a sealing surface of said seals. 5. A method according to claim 1, wherein said gate is connected to said connecting cavity. 6. A method according to claim 1, wherein wraparound cavities are formed in said first and second molds so that said melted seal material flows so as to be supplied via the periphery of said separator body held between said first and second molds. 7. A method according to claim 1, wherein said step of holding said separator body between said first mold and said second mold includes supporting at least one side of said separator body by a support fixture. 8. A method for fabricating a seal-integrated separator for a fuel cell, said seal-integrated separator including a separator body having a communication port, and a plurality of seals which are integrated on both sides of said separator body and which are disposed around an electrode's reaction surface during use and around said communication port, comprising the steps of: forming a through hole in said separator body; providing a first mold having a groove positioned corresponding to said pluraltiy of seals disposed on a first side of said separator body, a first gate communicating with said groove, and a second gate separately formed from said first gate so as to directly communicate with said through hole, and a second mold having a groove positioned corresponding to said pluraltiy of seals disposed on a second side of said separator body and communicating with said through hole; holding said separator body between said first mold and said second mold and making said second gate directly communicate with said through hole; and injecting melted seal material to form said seals into said groove in said first mold by supplying said melted seal material into said first gate, and injecting said melted seal material into said groove in said second mold via said through hole by supplying said melted seal material into said second gate, so that said plurality of seals are formed adjacent to each other on the first side of said separator body, said plurality of seals are formed adjacent to each other on the second side of said separator body, and said plurality of seals formed on the fist side of said separateor body and said plurality of seals formed on the second side of said separator body are formed at symmetrical positions about said separator body. 9. A method according to claim 8, wherein the first mold includes a third gate communicating with said groove formed in the first mold. 10. A method according to claim 8, wherein said step of holding said separator body between said first mold and said second mold includes supporting at least one side of said separator body by a support fixture.
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