EP1691452A2 - Kontaktierungsteil für ein Flachleiterelement und Verfahren zum Verbinden des Kontaktierungsteils und des Flachleiterelements - Google Patents

Kontaktierungsteil für ein Flachleiterelement und Verfahren zum Verbinden des Kontaktierungsteils und des Flachleiterelements Download PDF

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Publication number
EP1691452A2
EP1691452A2 EP06112356A EP06112356A EP1691452A2 EP 1691452 A2 EP1691452 A2 EP 1691452A2 EP 06112356 A EP06112356 A EP 06112356A EP 06112356 A EP06112356 A EP 06112356A EP 1691452 A2 EP1691452 A2 EP 1691452A2
Authority
EP
European Patent Office
Prior art keywords
flat circuit
circuit member
connecting member
side wall
claw
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.)
Withdrawn
Application number
EP06112356A
Other languages
English (en)
French (fr)
Other versions
EP1691452A3 (de
Inventor
Masanori Onuma
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.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority claimed from EP02102815A external-priority patent/EP1326306B1/de
Publication of EP1691452A2 publication Critical patent/EP1691452A2/de
Publication of EP1691452A3 publication Critical patent/EP1691452A3/de
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/68—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals comprising deformable portions

Definitions

  • the present invention relates to a connecting member for a flat circuit member and a method of connecting the connecting member and the flat circuit member, and more particularly to a connecting member for a flat circuit member which can be electrically connected reliably to a conductor portion in a flat circuit member such as a flexible printed circuit (FPC), a flexible flat cable (FFC), and a ribbon cable as well as a method of connecting the same.
  • a flat circuit member such as a flexible printed circuit (FPC), a flexible flat cable (FFC), and a ribbon cable as well as a method of connecting the same.
  • Fig. 18 is a perspective view illustrating a connecting member (electric connection member) 1
  • Fig. 19 is a cross-sectional view, taken in the direction of arrows along line XIX - XIX, of the connecting member 1 shown in Fig. 18 and illustrating the cross section of a flat circuit member (FFC) 10
  • Fig. 20 is an enlarged cross-sectional view illustrating a state in which the connecting member 1 is used.
  • the connecting member 1 has a bottom plate portion (proximal portion) 2, a plurality of claw portions (crimping pieces) 3 rising from both side edges of the bottom plate portion 2 in the thickness direction, and an arcuate contact portion 4 provided projectingly on the bottom plate portion 2.
  • the claw portions 3 of the connecting member 1 are caused to penetrate first piercing portions (portions of an insulating portion (insulating coating) 11 in Fig. 19) of the flat circuit member 10, as shown in Fig. 19. Subsequently, the claw portions 3 are bent toward the bottom plate portion 2 in such a manner as to clamp the flat circuit member 10 between the arcraate contact portion 4 on the bottom plate portion 2 and the claw portions 3. At this time, as shown in Fig.
  • the insulating portion 11 of the flat circuit member 10 clamped between the claw portions 3 and a concave arcuate surface 5 formed in advance on the arcuate contact portion 4 is peeled off by distal edges of the claw portions 3.
  • a conductor portion 12 of the flat circuit member 10 thereby exposed and the claw portions 3 of the connecting member 1 are brought into contact with each other, thereby electrically connecting the flat circuit member 10 and the connecting member 1.
  • the width of the connecting member 1 is W1
  • the bent width W2 of the claw portion 3 which is bent with a dimension of curl R becomes approximately one half of the just-mentioned width W1 of the connecting member 1 (i.e., W2 ⁇ W1 ⁇ 2).
  • each connecting member 1 In a case where the interval between adjacent ones of the plurality of conductor portions 12 in the flat circuit member 10 is small and the width of each conductor portion 12 is narrow, each connecting member 1 must be made compact correspondingly. However, in conjunction with this miniaturization, the width W1 of the connecting member 1 becomes narrow, and therefore the dimension of curl R of the claw portion 3 must also be made small. In such a connecting member 1, there is a possibility that it becomes difficult to bend the claw portion 3 smoothly. In addition, since the width W1 of the connecting member 1 becomes narrow (i.e., the width of the bottom plate portion 2 becomes narrow), it becomes difficult to form the arcuate contact portion 4 on the bottom plate portion 2.
  • the invention has been made in view of the above-described problems, and its object is to provide a connecting member for a flat circuit member which can be electrically connected reliably to a conductor portion in a flat circuit member and can ensure stable connection even in a case where the interval between adjacent ones of a plurality of conductor portions in the flat circuit member is small and the width of each conductor portion is narrow, as well as a method of connecting the connecting member and the flat circuit member.
  • the invention is characterized by having the following arrangement.
  • Fig. 1A is a perspective view illustrating the configuration of a connecting member 21 in accordance with a first embodiment of the invention
  • Fig. 1B is a cross-sectional view taken in the direction of arrows along line IIB - IIB in Fig. 1A.
  • the whole of the connecting member 21 is integrally formed by subjecting an appropriate electrically conductive metal plate to press forming.
  • the connecting member 21 has a bottom plate portion 22, a side wall portion 25 extending upward from a widthwise side edge 23 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22, and a claw portion 26 extending upward from the other side 24 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22 in such a manner as to oppose the side wall portion 25.
  • the claw portion 26 is tapered.
  • Figs. 2A and 2B illustrate an example of the flat circuit member.
  • Fig. 2A is a partially cutaway view of a flat circuit member 100
  • Fig. 2B is a partially cutaway view of a flat circuit member 110.
  • the flat circuit member 100 shown in Fig. 2A has thick conductor portions 102, whereas the flat circuit member 110 shown in Fig. 2B has thin conductor portions 112. Further, in the flat circuit member 100, each conductor portion 102 is covered with an insulating portion 101 and is insulated from the outside, whereas in the flat circuit member 110 each conductor portion 112 is formed on an insulating portion 111. It should be noted, however, that the flat circuit member which is connected to the connecting member of the invention is not limited to the flat circuit member 100 and the flat circuit member 110. Namely, it should be construed that there are various forms in the configuration of the flat circuit member, the circuit pattern of the conductor portions formed in or on the flat circuit member, and so forth.
  • the thick conductor portions 102 may be formed on the insulating portion as in the flat circuit member 110 shown in Fig. 2B.
  • the flat circuit member which is connected to the connecting member of the invention may adopt a form in which the conductor portions are partially exposed from the insulating portion in various forms.
  • the connecting member 21 When the connecting member 21 is connected to the flat circuit member, the connecting member 21 is first positioned below the flat circuit member, and the claw portion 26 is subsequently caused to penetrate a first piercing portion of the flat circuit member in the thickness direction thereof.
  • Fig. 3A shows a state in which the connecting member 21 has penetrated a first piercing portion (inthis example, a portion where the conductor portion and the insulating portion are present) of the flat circuit member 100
  • Fig. 3B shows a state in which the connecting member 21 has penetrated a first piercing portion (in this example, a portion where the conductor portion and the insulating portion are present) of the flat circuit member 110.
  • Fig. 3B shows an example in which the claw port ion 26 has penetrated the flat circuit member 110 while the conductor portion 112 exposed on the flat circuit member 110 is oriented toward the bottom plate portion 22 of the connecting member 21.
  • the first piercing port ion of the flat circuit member, which is penetrated by the claw portion 26 of the connecting member 21, may include both the insulating portion and the conductor portion, as shown in Figs. 3A and 3B, but the first piercing portion may not necessarily include the conductor portion. Namely, it is not necessarily essential for the portion of the flat circuit member where the conductor portion is present to be penetrated by the claw portion 26 of the connecting member 21, and the portion of the flat circuit member where only the insulating portion is present may be penetrated in the thickness direction thereof. However, consideration should be given to the fact that a greater number of electric contacts are obtained as the claw portion 26 penetrates the conductor portion and is brought into contact with the cross section of the conductor portion. Of course, the portion of the flat circuit member where only the conductor portion is present may be penetrated in the thickness direction thereof.
  • the method of connecting the connecting member 21 to the flat circuit member has been described separately with respect to the two examples, either connecting method should be selected appropriately in the actual connection by studying and taking into consideration the thickness, flexibility, and the like of the flat circuit member which is actually used.
  • the flat circuit member 110 having the thin conductor portions 102 is deflected greatly toward the bottom plate portion 22, as shown in Fig. 4B, since it has higher flexibility than the flat circuit member 100 having the thick conductor portions 102. Accordingly, in the case where the flat circuit member 110 is used, stable electric contact can be easily obtained by partially pressing the conductor portion against the side wall portion 25 by the claw portion 26 rather than by causing the claw portion 26 to pierce the conductor portion so as to obtain electric contact, as shown in Fig. 4A.
  • a tensile force or a pressing force may be applied, as required, to the flat circuit member from a direction substantially horizontal to the direction of extension of the flat circuit member.
  • the position of the connecting member 21 may be moved, as required.
  • the flat circuit member 110 is easily brought into contact with the upper surface (inner surface) of the bottom plate portion 22 as well, and if the conductor portion 112 is partially pressed against the bottom plate portion 22 as well by the distal end portion of the claw portion 26, it is possible to obtain further electric contact between the connecting member 21 and the conductor portion 112.
  • the conductor portion 112 of the flat circuit member 110 may be mounted in such a manner as to face the bottom plate portion 22 of the connecting member 21, but the insulating portion 111 of the flat circuit member 110 may be mounted in such a manner as to face the bottom plate portion 22.
  • the bent width W4 of the claw portion 26 which is bent with a dimension of curl R' becomes approximately equal to a value which is obtained by subtracting the thickness t of the connecting member 21 from the just-mentioned width W3 (i.e., W4 ⁇ W3 - t).
  • the dimension of curl R' of the connecting member 21 can be set to be greater than the dimension of curl R of the connecting member 1 (i.e., R' > R). Namely, since leeway is provided in the range of the setting of the dimension of curl R' , smooth curling of the claw portions becomes possible.
  • the width W3 of the connecting member 21 can be made small by making the dimension of curl R' small. Accordingly, it is possible to design a compact connecting member. For this reason, even in cases where the interval between adjacent ones of a plurality of conductor portions is small in the flat circuit member and the width of each conductor portion is narrow, it is possible to obtain reliable electric contact between the conductor portions and the connecting member.
  • the claw portion 26 is bent such that the inner surface 29 and the outer surface 28 of the claw portion 26 is located on the inner side of the side wall portion 25.
  • the claw portion 26 may be bent such that the inner surface 29 of the claw portion 26 is located as close to the vicinity of the outer surface of the side wall portion 25 as possible.
  • the connecting member of the invention is applicable to various uses.
  • the connecting member can be directly soldered to a mating member to be connected to, such as an electric circuit board and various devices, thereby making it possible to connect the flat circuit member to the mating member to be connected to.
  • the bottom plate portion of the connecting member may be modified appropriately as to be used as a portion for soldering.
  • Figs. 6A and 6B show a first modification of the connecting member 21 shown in Fig. 1, and specifically illustrate an example in which the inner edge portion 27 of the side wall portion 25 has been chamfered.
  • Fig. 6A shows a connecting member 21A in which a curved surface 27' has been formed on the inner edge portion of the side wall portion 25, while Fig. 6B shows a connecting member 21B in which an inclined surface 27" has been formed on the inner edge portion of the side wall portion 25.
  • the curved surface 27' or the inclined surface 27" is formed on the connecting member shown in Fig. 4A, it is possible to reliably prevent damage to the insulating portion 101 of the flat circuit member 100. Furthermore, when the claw portion 26 is bent toward the bottom plate portion 22 such that the distal end portion of the claw portion 26 pierces the conductor portion 102 of the flat circuit member 100, it becomes difficult for the flat circuit member 100 to resist the stress whereby it is pulled toward the proximal side of the claw portion 26. For this reason, the flat circuit member 100 is likely to slide on the curved surface 27' or the inclined surface 27", so that a strain is likely produced in the portion 102a of the conductor portion 102 located on the inner side of the bent claw portion 26.
  • the curved surface 27' or the inclined surface 27" is formed on the connecting member shown in Fig. 4B, it is possible to reliably prevent damage to or cutting of the conductor portion 112 of the flat circuit member 110. Furthermore, when the claw portion 26 is bent toward the bottom plate portion 22 such that the flat circuit member 110 is clamped between the outer surface 28 of the claw portion 26 and the curved surface 27' or the inclined surface 27" of the side wall portion 25, it becomes difficult for the flat circuit member 110 to resist the stress whereby it is pulled toward the proximal side of the claw portion 26, and the flat circuit member 110 is capable of sliding smoothly on the curved surface 27' or the inclined surface 27". For this reason, the flat circuit member 110 having higher flexibility than the flat circuit member 100 shown in Fig.
  • Figs. 7A and 7B show a second modification of the connecting member 21 shown in Fig. 1.
  • Fig. 7A shows a connecting member 21C in which a male terminal portion 30 connectable to a mating female terminal 31 is formed atone longitudinal end portion of the bottom plate portion 22 shown in Fig. 1.
  • Fig. 7B shows a connecting member 21D in which a female terminal portion 32 connectable to a mating male terminal 33 is formed at one longitudinal end portion of that bottom plate portion 22.
  • the flat circuit member having such a modified connecting member connected thereto is easily connected to another device having a mating terminal, and the range of application of the flat circuit member becomes wide.
  • each of the male terminal portion 30 and the female terminal portion 32 maybe formed integrally with the connecting member or may be formed separately. However, they should preferably be formed integrally for the purpose of the lowering of the manufacturing cost through a decrease in the number of device parts of the connecting member and for the purpose of the improvement of strength. It goes without saying that the application of the first modification to this second modification is also effective.
  • Fig. 8 shows a third modification of the connecting member 21 shown in Fig. 1, and specifically shows a connecting member 21E which is provided with a plurality of claw portions and a plurality of side wall portions.
  • a second side wall portion 25A extending upward from one side edge 23 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22, as well as a second claw portion 26A extending upward from the other side edge 24 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22 in such a manner as to oppose the side wall portion 25A, are further formed on the connecting member 21E in addition to the configuration of the connecting member shown in Fig. 1.
  • connecting member 21E since electric contact with the conductor portion of the flat circuit member is formed at least at two portions, the reliability of electric contact improves.
  • the connecting member 21E is effective in a case where a shortcircuiting circuit is formed for two independent conductor portions. It goes without saying that the application of the first modification and the second modification to this third modification is also effective .
  • a slit or a recessed portion may not be formed between the side wall portion 25 and the second side wall portion 25A as shown by the dotted lines in Fig. 8, and these side wall portions may be formed continuously without a break.
  • the side wall portion which is thus formed continuously without a break is preferable since its strength improves as compared with the case where the side wall portion 25 and the second side wall portion 25A are formed individually independently.
  • Fig. 9 shows a fourth modification of the connecting member 21 shown in Fig. 1, and specifically shows a connecting member 21F which is provided with a plurality of claw portions and a plurality of side wall portions, but the positions where the second claw portion and the second side wall portion are formed differ in comparison with the connecting member 21E shown in Fig. 8.
  • a second side wall portion 25B extending upward from the other side edge 24 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22, as well as a second claw portion 26B extending upward from one side edge 23 of the bottom plate portion 22 substantially in parallel with the thickness direction of the bottom plate portion 22 in such a manner as to oppose the inner surface of the side wall portion 25B, are further formed on the connecting member 21F in addition to the configuration of the connecting member shown in Fig. 1.
  • connecting member 21F in the same way as the connecting member 21E shown in Fig. 8, since electric contact with the conductor portion of the flat circuit member is formed at least at two portions, the reliability of electric contact improves.
  • the connecting member 21F is effective in a case where a shortcircuiting circuit is formed for two independent conductor portions. It goes without saying that the application of the first to third modifications to this fourth modification is also effective.
  • Fig. 10 shows a fifth modification of the connecting member 21 shown in Fig. 1, and specifically shows a connecting member 21G which is provided with a plurality of claw portions and a plurality of side wall portions.
  • the second claw portion 26B and the second side wall portion 25B are respectively provided at positions further spaced apart from the side wall portion 25 and the claw portion 26 in the longitudinal direction of the bottom plate portion 22.
  • Fig. 11 is a perspective view illustrating the configuration of a connecting member 51 in accordance with a second embodiment of the invention.
  • Fig. 12 is a side elevational view taken in the longitudinal direction of the connecting member 51 shown in Fig. 11.
  • Fig. 13 is a top view of the connecting member 51 shown in Fig. 11.
  • Fig. 14 is a cross-sectional view taken in the direction of arrows along line XIV - XIV in Fig. 13.
  • Fig. 15 is a cross-sectional view taken in the direction of arrows along line XV - XV in Fig. 13.
  • Fig. 16 is a side elevational view taken in the widthwise direction of the connecting member 51 shown in Fig. 11.
  • Fig. 17 is a development view of the connecting member 51 shown in Fig. 11.
  • the whole of the connecting member 51 is integrally formed by subjecting an appropriate electrically conductive metal plate to press forming.
  • the connecting member 51 is an embodiment of the modification of the first embodiment by taking into consideration the above-described first to fifth modifications.
  • a plurality of wide wall portions 55 respectively extend upward from both widthwise side edges of a bottom plate portion 52 substantially in parallel with the thickness direction of the bottom plate portion 52, and a plurality of claw portions 56 respectively extend from both widthwise side edges of the bottom plate portion 52 in such a manner as to respectively oppose the plurality of side wall portions 55.
  • the plurality of side wall portions 55 and the plurality of claw portions 56 are respectively arranged alternately (i.e., in a staggered manner) on both side edges of the bottom plate portion 52 along the longitudinal direction of the bottom plate portion 52.
  • a slit or a recessed portion is not provided between each of the plurality of side wall portions 55 and each of the plurality of claw portions 56 which are juxtaposed alternately at each side edge of the bottomplate portion 52, and the side wall portions 55 and the claw portions 56 are formed continuously.
  • the structure of the connecting member 51 is simplified, as shown in Figs. 16 and 17, for example. It is effective to apply these peculiar structures of the second embodiment to the first embodiment and the first to fifth modifications.
  • the inner edge portions of the respective side wall portions 55 are chamfered, and curved surfaces or inclined surfaces 57 are formed thereon.
  • connection between the connecting member 51 and the flat circuit member can be readily surmised from the details of the first embodiment described with reference to Figs. 1A to 6B, so that a description thereof will be omitted.
  • operation and the like based on the configuration of the connecting member 51 can also be readily surmised from the description of the above-described first embodiment and various modifications, so that a description thereof will be omitted.
  • each of the above-described connecting members may be formed integrally by welding, an electrically conductive adhesive agent, or the like after being respectively formed separately insofar as they are made of appropriate metals which are electrically conductive.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP06112356A 2002-12-18 2002-12-18 Kontaktierungsteil für ein Flachleiterelement und Verfahren zum Verbinden des Kontaktierungsteils und des Flachleiterelements Withdrawn EP1691452A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02102815A EP1326306B1 (de) 2001-12-19 2002-12-18 Anschlusselement für ein Flachbandkabel und Verfahren zur Verbindung des Anschlusselementes am Flachbandkabel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP02102815A Division EP1326306B1 (de) 2001-12-19 2002-12-18 Anschlusselement für ein Flachbandkabel und Verfahren zur Verbindung des Anschlusselementes am Flachbandkabel

Publications (2)

Publication Number Publication Date
EP1691452A2 true EP1691452A2 (de) 2006-08-16
EP1691452A3 EP1691452A3 (de) 2006-09-27

Family

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EP06112356A Withdrawn EP1691452A3 (de) 2002-12-18 2002-12-18 Kontaktierungsteil für ein Flachleiterelement und Verfahren zum Verbinden des Kontaktierungsteils und des Flachleiterelements

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2544300A1 (de) * 2011-07-08 2013-01-09 Tyco Electronics Belgium EC BVBA Gedruckte Antenne
EP4346012A1 (de) * 2022-09-30 2024-04-03 Nexans Flachbandkabelsatz und verfahren zur herstellung eines flachbandkabelsatzes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH048372A (ja) 1990-04-26 1992-01-13 Mitsubishi Electric Corp 放射線発生装置
JP2002188633A (ja) 2000-12-20 2002-07-05 Nsk Ltd 流体軸受装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924917A (en) * 1974-04-30 1975-12-09 Elco Corp Flat cable termination method and apparatus
JP3682841B2 (ja) * 1999-09-07 2005-08-17 矢崎総業株式会社 フラット回路体の接続端子

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH048372A (ja) 1990-04-26 1992-01-13 Mitsubishi Electric Corp 放射線発生装置
JP2002188633A (ja) 2000-12-20 2002-07-05 Nsk Ltd 流体軸受装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2544300A1 (de) * 2011-07-08 2013-01-09 Tyco Electronics Belgium EC BVBA Gedruckte Antenne
WO2013007549A1 (en) * 2011-07-08 2013-01-17 Tyco Electronics Belgium Ec Bvba Printed antenna
US9343805B2 (en) 2011-07-08 2016-05-17 Tyco Electronics Belgium Ec Bvba Printed antenna
EP4346012A1 (de) * 2022-09-30 2024-04-03 Nexans Flachbandkabelsatz und verfahren zur herstellung eines flachbandkabelsatzes

Also Published As

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