WO2012035863A1 - フレキシブルフラットケーブル - Google Patents

フレキシブルフラットケーブル Download PDF

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Publication number
WO2012035863A1
WO2012035863A1 PCT/JP2011/065920 JP2011065920W WO2012035863A1 WO 2012035863 A1 WO2012035863 A1 WO 2012035863A1 JP 2011065920 W JP2011065920 W JP 2011065920W WO 2012035863 A1 WO2012035863 A1 WO 2012035863A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat cable
flexible flat
dielectric constant
adhesive layer
polyolefin
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.)
Ceased
Application number
PCT/JP2011/065920
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English (en)
French (fr)
Japanese (ja)
Inventor
直人 依田
英二 坂口
重雄 林
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.)
Totoku Electric Co Ltd
Original Assignee
Totoku Electric 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 Totoku Electric Co Ltd filed Critical Totoku Electric Co Ltd
Priority to CN201180019528.8A priority Critical patent/CN102918606B/zh
Publication of WO2012035863A1 publication Critical patent/WO2012035863A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0823—Parallel wires, incorporated in a flat insulating profile

Definitions

  • the present invention relates to a flexible flat cable, and more particularly to a flexible flat cable having a low dielectric constant and being difficult to be brittlely broken.
  • an insulating tape for a flexible flat cable in which a foamed polyester resin insulating layer and a polyolefin adhesive layer are integrated is known (for example, see Patent Document 1).
  • an object of the present invention is to provide a flexible flat cable that has a low dielectric constant and is less susceptible to brittle fracture.
  • the present invention provides a foamed polyester resin insulation layer (1a, 1b, 1) and a polyolefin adhesive layer (2) laminated on the foamed polyester resin insulation layer (1a, 1b, 1). And a plurality of conductor wires (3a to 3d) embedded in the polyolefin-based adhesive layer (2), and the dielectric constant of the polyolefin-based adhesive layer (2) is set to the foamed polyester-based resin insulation layer
  • a flexible flat cable (101, 102) characterized by having a dielectric constant smaller than that of (1a, 1b, 1).
  • the dielectric constant of the polyolefin adhesive layer (2) is mainly reduced, and the foamed polyester resin insulating layers (1a, 1b, The dielectric constant of 1) is larger than that.
  • the dielectric constant of the polyolefin-based adhesive layer (2) is reduced to 2.4, and the dielectric constant of the foamed polyester-based resin insulation layer is 2.8.
  • the dielectric constant of the flexible flat cable can be reduced, and it is not necessary to reduce the dielectric constant of the foamed polyester-based resin insulation layer by increasing the foaming ratio. it can.
  • the present invention relates to the flexible flat cable (101, 102) according to the first aspect, wherein the dielectric constant of the foamed polyester resin insulation layer (1a, 1b, 1) is 2.4-3.
  • a flexible flat cable (101, 102) characterized in that the dielectric constant of the polyolefin adhesive layer (2) is 2.1 to 2.7.
  • a more preferable range is 2.6 to 2.8.
  • the foaming rate of the foamed polyester resin insulation layer (1a, 1b, 1) is 10 to 50%. If it is lower than 10%, the dielectric constant will be higher than 3.0. On the other hand, if it is higher than 50%, the rigidity of the film is inferior and cannot be used.
  • lowering the dielectric constant of the polyolefin-based adhesive layer (2) below 2.1 is not preferable from the viewpoint of flame retardancy, and if it exceeds 2.7, it becomes difficult to obtain a desired impedance.
  • a more preferable range is 2.5 to 2.6.
  • the dielectric constant can be reduced and brittle fracture can be made difficult.
  • FIG. 4 is a chart showing various numerical examples of a double-sided shielded flexible flat cable according to Example 1.
  • FIG. It is a graph which shows the crosstalk characteristic of the double-sided shield flexible flat cable which concerns on Example 1, and a comparative example.
  • It is explanatory drawing which shows the recoverability test method of a flexible flat cable.
  • FIG. 6 is a chart showing the recoverability test results of the double-sided shielded flexible flat cable according to Example 1. It is sectional drawing which shows the single-sided shield flexible flat cable which concerns on Example 2.
  • FIG. 6 is a chart showing various numerical examples of a single-sided shielded flexible flat cable according to Example 2.
  • FIG. 1 is a cross-sectional view illustrating a double-sided shielded flexible flat cable 101 according to the first embodiment.
  • the double-sided shielded flexible flat cable 101 is embedded in the first foamed PET insulating layer 1a, the polyolefin adhesive layer 2 laminated on the upper surface of the first PET insulating layer 1a, and the polyolefin adhesive layer 2.
  • the plurality of conductor wires 3a to 3d, the first adhesive layer 5a laminated on the lower surface of the first foamed PET insulating layer 1a, and the aluminum shield layer laminated on the lower surface of the first adhesive layer 5a A first laminated tape comprising 7a and a PET insulating layer 6a, a second foamed PET insulating layer 1b laminated on the upper surface of the polyolefin adhesive layer 2, and a second foamed PET insulating layer 1b.
  • the second adhesive layer 5b and a second laminated tape comprising an aluminum shield layer 7b and a PET insulating layer 6b laminated on the upper surface of the second adhesive layer 5b are provided.
  • the dielectric constant of the polyolefin adhesive layer 2 is, for example, 2.4.
  • the polyolefin adhesive layer 2 contains 100 parts by weight of polyolefin and 30 parts by weight of a brominated flame retardant, 10 parts by weight of an antimony flame retardant, and 2 parts by weight of other additives. By not adding an inorganic filler, it is possible to avoid an increase in the dielectric constant of the polyolefin-based adhesive layer 2.
  • the dielectric constant of the first foamed PET insulating layer 1a and the second foamed PET insulating layer 1b is, for example, 2.8.
  • 80 parts by weight of polyester and 10 parts by weight of polyolefin resin are mixed with 10 parts by weight of titanium dioxide and 6 parts by weight of aromatic resin and other additives.
  • the foaming rate is controlled to about 20%. Since it is not necessary to reduce the dielectric constant of the foamed PET insulating layers 1a and 1b, the foaming rate can be lowered, and it is possible to avoid brittle fracture.
  • FIG. 2 is a chart showing various numerical examples of the double-sided shielded flexible flat cable 101.
  • FIG. 3A is a graph showing the crosstalk characteristics of the double-sided shielded flexible flat cable 101.
  • FIG. 3b shows the crosstalk characteristics of the comparative example having the same structure as the double-sided shielded flexible flat cable 101 except that a polyester-based adhesive layer having a dielectric constant of 3.6 is used instead of the polyolefin-based adhesive layer 2. It is a graph to show. In FIG. 3a, crosstalk is reduced by about 10 [dB] compared to b.
  • FIG. 4A is a graph showing attenuation characteristics of the double-sided shielded flexible flat cable 101.
  • 4b shows the attenuation characteristics of a comparative example having the same structure as the double-sided shielded flexible flat cable 101 except that a polyester-based adhesive layer having a dielectric constant of 3.6 is used instead of the polyolefin-based adhesive layer 2.
  • FIG. It is a graph. In FIG. 4a, the attenuation characteristic is improved over b.
  • FIG. 5A is a graph showing the eye pattern and jitter characteristics of the double-sided shielded flexible flat cable 101.
  • FIG. 5B shows an eye pattern of a comparative example having the same structure as the double-sided shielded flexible flat cable 101 except that a polyester-based adhesive layer having a dielectric constant of 3.6 is used instead of the polyolefin-based adhesive layer 2. It is a graph which shows a jitter characteristic. Crosstalk is improved by about 10 [dB] and attenuation characteristics are improved.
  • (a) has a larger amplitude and a larger aperture ratio than (b).
  • the jitter characteristic could be improved from 340 ps to 200 ps.
  • FIG. 6 is an explanatory diagram showing a recoverability test method.
  • a loop L having a circumferential length of 600 mm is formed by the double-sided shielded flexible flat cable 101.
  • the loop L is hung from the support rod S and pressed by the clamp C.
  • the lateral width W (g) of the loop L is measured.
  • the load g is removed, and the lateral width W (0) of the loop L after 3 minutes is measured.
  • the dielectric constant of the polyolefin-based adhesive layer 2 is mainly reduced, and the dielectric constants of the foamed PET insulating layers 1a and 1b are higher than that. It is getting bigger. Thereby, while being able to make the dielectric constant as a flexible flat cable small, it can avoid becoming easy to carry out a brittle fracture.
  • FIG. 8 is a cross-sectional view illustrating the single-sided shielded flexible flat cable 102 according to the second embodiment.
  • This single-sided shielded flexible flat cable 102 was embedded in a foamed PET (polyethylene terephthalate) insulating layer 1, a polyolefin-based adhesive layer 2 laminated on the upper surface of the foamed PET insulating layer 1, and a polyolefin-based adhesive layer 2.
  • the dielectric constant of the polyolefin adhesive layer 2 is, for example, 2.4.
  • the polyolefin adhesive layer 2 contains 100 parts by weight of polyolefin and 30 parts by weight of a brominated flame retardant, 10 parts by weight of an antimony flame retardant, and 2 parts by weight of other additives. By not adding an organic filler, it is possible to avoid an increase in the dielectric constant of the polyolefin-based adhesive layer 2.
  • the dielectric constant of the foamed PET insulating layer 1 is, for example, 2.8.
  • 10 parts by weight of titanium dioxide and 6 parts by weight of aromatic resin and other additives are added to 80 parts by weight of polyester and 10 parts by weight of polyolefin resin.
  • the foaming rate is controlled to about 20%. Since it is not necessary to reduce the dielectric constant of the foamed PET insulating layer 1, it is possible to reduce the foaming rate and avoid brittle fracture.
  • FIG. 9 is a chart showing various numerical examples of the single-sided shielded flexible flat cable 102.
  • the dielectric constant of the polyolefin-based adhesive layer 2 is mainly reduced, and the dielectric constant of the foamed PET insulating layer 1 is made larger than that. ing.
  • the flexible flat cable of the present invention can be used as a high-speed transmission cable of 500 MHz, for example.

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PCT/JP2011/065920 2010-09-17 2011-07-13 フレキシブルフラットケーブル Ceased WO2012035863A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180019528.8A CN102918606B (zh) 2010-09-17 2011-07-13 柔性扁平电缆

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010208669A JP5917798B2 (ja) 2010-09-17 2010-09-17 フレキシブルフラットケーブル
JP2010-208669 2010-09-17

Publications (1)

Publication Number Publication Date
WO2012035863A1 true WO2012035863A1 (ja) 2012-03-22

Family

ID=45831339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/065920 Ceased WO2012035863A1 (ja) 2010-09-17 2011-07-13 フレキシブルフラットケーブル

Country Status (3)

Country Link
JP (1) JP5917798B2 (https=)
CN (1) CN102918606B (https=)
WO (1) WO2012035863A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9627788B2 (en) 2014-09-10 2017-04-18 Rolls-Royce Plc Electrical harness connector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5626174B2 (ja) * 2011-10-04 2014-11-19 住友電気工業株式会社 シールドフラットケーブル
JP6342044B1 (ja) * 2017-06-26 2018-06-13 東京特殊電線株式会社 フレキシブルフラットケーブル、その製造方法、及びその製造に用いる未発泡絶縁テープ
KR102423487B1 (ko) * 2020-04-14 2022-07-20 한양대학교 에리카산학협력단 플렉시블 플랫 케이블의 제조방법 및 이를 통해 제조된 플렉시블 플랫 케이블
TWI868568B (zh) * 2023-01-30 2025-01-01 日商光明肯揚股份有限公司 排線

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007207629A (ja) * 2006-02-02 2007-08-16 Sumitomo Electric Ind Ltd フレキシブルフラットケーブル
JP2008251261A (ja) * 2007-03-29 2008-10-16 Tokai Rubber Ind Ltd フレキシブルフラットケーブル用絶縁テープおよびその製法
WO2010140520A1 (ja) * 2009-06-01 2010-12-09 東京特殊電線株式会社 シールド層付フレキシブルフラットケーブル

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3982210B2 (ja) * 2001-07-11 2007-09-26 日立電線株式会社 フレキシブルフラットケーブル
KR101327725B1 (ko) * 2006-07-19 2013-11-11 스미토모덴키고교가부시키가이샤 플렉시블 플랫 케이블

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007207629A (ja) * 2006-02-02 2007-08-16 Sumitomo Electric Ind Ltd フレキシブルフラットケーブル
JP2008251261A (ja) * 2007-03-29 2008-10-16 Tokai Rubber Ind Ltd フレキシブルフラットケーブル用絶縁テープおよびその製法
WO2010140520A1 (ja) * 2009-06-01 2010-12-09 東京特殊電線株式会社 シールド層付フレキシブルフラットケーブル

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9627788B2 (en) 2014-09-10 2017-04-18 Rolls-Royce Plc Electrical harness connector

Also Published As

Publication number Publication date
CN102918606A (zh) 2013-02-06
CN102918606B (zh) 2015-11-25
JP2012064478A (ja) 2012-03-29
JP5917798B2 (ja) 2016-05-18

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