Hinge with insulated wire for electronic devices
View Patent ↗The combination of a hinge and an insulated wire is provided, wherein the hinge is capable of closing and opening to an angle of at least 90°, the insulated wire being secured by the hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, the insulation on the wire comprising fluoropolymer, such as tetrafluoroethylene/-hexafluoropropylene copolymer or tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, each polymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, the hinge being useful in such electronic devices as a laptop computer or a clamshell cell phone, attaching the keyboard and screen portion to one another, the insulation being capable of repeated opening and closing of the hinge without cracking of the insulation.
1. The combination of a hinge capable of opening and closing, the opening being capable of forming an angle within the hinge of at least 90° and an insulated wire secured by said hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, said insulated wire having insulation comprising a fluoropolymer selected from (a) tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, or (b) tetrafluoroethylene/hexafluoropropylene copolymer having a hexafluoropropylene content of about 3.5-8 wt % (HFPI of 1.09-2.5) and melt flow rate of at least about 10 g/10 min, said fluoropolymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, said insulated wire exhibiting shrink-back of said insulation of 0.5 mm or less upon soldering.
2. The combination of claim 1 wherein said insulation comprises tetrafluoroethylene/hexafluoropropylene copolymer having a melting temperature of about 260-270° C.
3. An electronic device comprising a keyboard portion, a screen portion, at least one hinge attaching said screen portion to said keyboard portion, each said hinge enabling said screen portion to be closed against said keyboard portion and said screen portion to be opened by an angle of at least 90° from said keyboard portion, and an insulated wire secured by at least one of said hinges so as to fold when said hinge is closed and to unfold when said hinge is opened, said insulated wire having insulation comprising a fluoropolymer selected from (a) tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, or (b) tetrafluoroethylene/hexafluoropropylene copolymer having a hexafluoropropylene content of about 3.5-8 wt % (HFPI of 1.09-2.5) and melt flow rate of at least about 10 g/10 min, said fluoropolymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, said insulated wire exhibiting shrink-back of said insulation of 0.5 mm or less upon soldering.
4. The electronic device of claim 3 wherein said device is a laptop computer or a clamshell cell phone.
5. The electronic device of claim 3 wherein said insulated wire is antenna wire.
6. Antenna wire comprising insulated wire having insulation comprising tetrafluoroethylene/hexafluoropropylene (HFP) copolymer having an HFP content of about 3.5-8 wt % (HFPI of 1.09-2.5), a melting temperature of about 260-270° C., an MFR of at least about 10 g/10 min, and an MIT Flex Life of at least about 15,000 cycles and not to exceed about 25,000 cycles, said insulated wire exhibiting shrink-back of said insulation of 0.5 mm or less upon soldering.