|Publication number||US3319216 A|
|Publication date||May 9, 1967|
|Filing date||Mar 25, 1965|
|Priority date||Mar 25, 1965|
|Publication number||US 3319216 A, US 3319216A, US-A-3319216, US3319216 A, US3319216A|
|Inventors||Robert W Mccullough|
|Original Assignee||Fischer & Porter Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (73), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
y 9, 1967 R. w. MCCULLOUGH 3,319,216
CONNECTOR FOR FLAT CABLES Filed March 25, 1965 f n 4 j 32 32 \k I I i 22 .26 24 F l G 3 22 24 INVENTOR.
ROBERT w. McCULLO UGH F 1 e. 2. BY
I /jpv) 45/ 7 ATTORNEYS United States Patent 3,319,216 CONNECTOR FOR FLAT CABLES Robert W. McCullough, Willow Grove, Pa., assignor to Fischer & Porter Company, Warminster, Pa., a corporation of Pennsylvania Filed Mar. 25, 1965, Ser. No. 442,713 4 (Ilaims. (Cl. 339176) This invention relates to cable connectors, and particularly to a connector for use with tape type cables having a plurality of parallel conductors.
This invention has particular utility in providing electrical connections to printed circuit boards which may :be formed in many ways, usually by etching, but which, in any form, comprise conductors carried by one or more faces of an insulating member. In the manufacture of electronic apparatus, it is often desirable to provide multiple interconnections between various separate circuit boards which can be easily removed so that the circuit boards may be easily interchanged or replaced.
In instruments which comprise a chassis within a case, it is often desirable to provide for removal of the chassis from the case while permitting operation to continue for testing purposes. It will be seen that if a flat cable is provided to connect the chassis with a terminal strip on the case, the chassis may be removed from the case while operation of the apparatus continues. The cable takes up little space within the case when the instrument is fully assembled.
The invention contemplates the use of the conducting elements of the flat cable as the contacts of the connector, and great simplicity of construction is thus achieved.
The primary object of this invention is to provide a cable connector having an extremely simple and economical construction.
A further object is to provide a simple means for making multiple electrical connections to a printed circuit board.
Other objects will become apparent from the following description read in conjunction with the accompanying drawing in which:
FIGURE 1 is an exploded view showing the construction of a connection between a flat multiconductor cable and a printed circuit board;
FIGURE 2 is a sectional view of an assembled connector; and
FIGURE 3 is a sectional view of an assembled connector shown in contact with a printed circuit board.
Referring to FIGURE 1, a flexible, flat, multiconductor cable is shown, stripped of insulation on its upper side from a starting edge indicated at 12 to edge 14. A plurality of parallel conductors 16 are exposed, and the stripped end of the cable is bent into an M-like configuration about a flexible plastic insert 18 having a U-shaped cross-section. Insert 18 is provided with a pair of elongated ribs 20 along its upper and lower sides, and has a pair of lips 22 along its edges. It is desirably an extrusion of an elastic material having the properties of compressibility and flexibility, an example of a suitable material being neoprene.
A pair of identical slightly resilient molded plastic shell halves 24, formed of an insulating plastic such as polycarbonate is provided. Among other suitable materials are glass filled diallylphthalate and acetal homopolymer. The shell halves are provided with grooved sockets 26 and rounded tongues 28 so that they can be snapped together conveniently (by slight yielding of the walls of the sockets) to form a housing having a hollow inner chamber to contain the assembly comprising insert 18 and the portion of the cable wrapped around it. The sides 30 of members 24 are lowered slightly with respect to the ends of the shell halves to provide an opening through which cable .10 can pass when :the shell halves are assembled.
Edges 32 of the opposed sides of shell halves 24 are oblique, so that, when the shell halves are assembled, a flared opening is provided to facilitate the insertion of a protruding portion 34 of circuit board 36. Conductors 38, printed on the circuit board, extend to the edge of protruding portion 34. It will be apparent that they can be printed on either side of the circuit :board or on both sides.
Referring to FIGURE 2, the orientation of the flexible elastic insert within the assembled shell is such that the cable is clamped against the inside of the shell by ribs 20, insert 18 having been displaced slightly when shell halves 24 were snapped together.
Lips 22, however, can be moved outwardly with some consequent bending of insert 18 when the connector is mated with the edge of circuit board 36, as illustrated in FIGURE 3. Lips 22 are compressed in the folds of the cable, and are deformed slightly. The exposed conductors of the cable are then held in con-tact with the conductors etched on the circuit board by the force resulting from the compression of the lips, and by the elasticity of the opposite sides of insert 18.
The connector assembly may be slipped off and ontov a circuit board, and a good electrical contact is maintained between each cable conductor and its corresponding conductor etched on the circuit board, because of the compression of lips 22 and the slight compression of the insulation backing the stripped portion of the cable. Since the lips are capable of being deformed non-uniformly along their length, the situation will not arise where, for example, the conductors at the edges of the cable are held in contact with their corresponding conductors of the circuit board, while the conductors near the center are not maintained in contact. Ordinary warping of the circuit board therefore has no detrimental effect. Proper alignment between the conductors on the circuit board and the conductors of the cable is accomplished by making the widths of the cable and of protruding portion 34 of the circuit board equal to each other and only slightly less than the openings of which edges 32 of the shell halves form the upper and lower :boundaries. Various methods of keying the connector in order to insure that the connector fits onto the circuit board only in the proper direction will be obvious. Ordinarily, the proper direction will be immediately apparent from simple markings on the outside of the connector.
The primary advantage of the connector is its simplicity of construction arising from the fact that it requires no contact members other than the conductors already provided by the cable. Because of the uniform non-indexed pressure exerted by the elastic insert, mating of any combination of conductor widths and spacings are possible with a corresponding combination on the printed circuit board. This feature permits use of an infinite variety of conductor widths within the limits of the cable width, and consequently allows the user considerable freedom to select conductor sizes tailored to the circuit requirements.
The connector is particularly adapted for applications in which connections are to be made to circuit boards which are etched on both sides as where capacitors are formed by leaving conducting areas on opposite sides of the board.
The fact that the connector housing and insert are made entirely of insulating materials reduces hazard to the user and precludes the possibility of failure due to short circuit with the cable conductors.
The connector may be adapted for use as a socket for plug-in circuit boards. It will be apparent that there are "3 (,3 various other uses to which the invention can be put, and that various modifications can be made without departing from the scope of the invention as defined in the following claims.
What is claimed is:
1. For use in making electrical connections between tape-type multiconductor insulated cables and printed circuit boards, the combination comprising a flexible elastic element having substantially a U-shaped transverse crosssection and having a rib spaced from the edges of the oppositely facing sides of said element and extending lengthwise on the outside of each of said oppositely facing sides and having a trough about which a cable with its conductors exposed on one side may be located to present the exposed portions of said conductors facing inwardly within the trough of said element, a hollow housing having a first elongated opening for receiving a protruding portion of a circuit board in electrical connection with said inwardly facing portions of said conductors, and a second elongated opening for receiving said cable, said element being receivable within said hollow housing so that the cable is clamped about said element between each said rib and the adjacent wall of said housing, with the open side of said trough facing said first elongated opening in said housing.
2. For use in making electrical connections between tape-type multiconductor insulated cables and printed circuit boards, the combination comprising a flexible elastic element having a trough about which a cable with its conductors exposed on one side may be located to present the exposed portions of said conductors facing inwardly within the trough of said element, said element having enlarged compressible lips along the edges of its oppositely facing sides, a hollow housing having a first elongated opening for receiving a protruding portion of a circuit board in electrical connection with said inwardly facing portions of said conductors, and a second elongated opening for receiving said cable, said element being receivable within said hollow housing so that the cable is clamped about said element, with the open side of said trough facing said first elongated opening in said housing so that said lips are compressed within folds of said cable between the protruding portion of said circuit board and the adjacent wall of said housing.
3. A connector for flat cables comprising an enclosure having an elongated opening for insertion of a protruding portion of a circuit board and an elongated opening for passage of a flat cable into the interior of said enclosure, a trough-shaped member within said housing formed of a compressible elastic material and having enlarged, compressible lips along the edges of its oppositely facing sides, the open side of said trough-shaped member facing said opening for insertion of a protruding portion of a circuit board, and a fiat, multiconductor cable, stripped on at least one side to expose its conductors and having folds about said lips and a fold within said trough shaped member, said lips being compressed within said folds about said lips when the protruding portion of a circuit board is inserted into said fold within said trough-shaped member, and said conductors being exposed to the interior of said fold within said trough-shaped member to make electrical contact with conductors on said circuit board under the force exerted by the compression of said lips.
4. A connector for flat cables comprising an enclosure having an elongated opening for insertion of a protruding portion of a circuit board and an elongated opening for passage of a fiat cable into the interior of said enclosure, a trough-shaped member within said housing formed of a compressible elastic material and having a rib extending lengthwise 0n the outside of each of its oppositely facing sides, said rib being spaced from the edges of said oppositely facing sides, and said trough-shaped member having its open side facing said elongated opening for insertion of a protruding portion of a circuit board, and a flat, multi-conductor cable, stripped on at least one side to expose its conductors and wrapped around said troughshaped member, and having a fold within said troughshaped member, said conductor being exposed to the interior of said fold, and said cable being clamped between a rim and a wall of said enclosure on either side of said trough-shaped member.
References Cited by the Examiner UNITED STATES PATENTS 2,870,424 1/1959 Franz 339l7 3,102,767 9/1963 Schneck 33917 X 3,188,601 6/1965 De Tar 339--176 X 3,230,498 1/1966 Keys 339176 X MARVIN A. CHAMPION, Primary Examiner.
W. DONALD MILLER, Examiner.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2870424 *||Dec 30, 1954||Jan 20, 1959||Bell Telephone Labor Inc||Electrical socket for miniature components|
|US3102767 *||Dec 8, 1960||Sep 3, 1963||Kent Mfg Co||Electrical connector for flat conductor cable|
|US3188601 *||Aug 15, 1962||Jun 8, 1965||Litton Prec Products Inc||Electrical connector for tape-like electrical cable|
|US3230498 *||Feb 28, 1964||Jan 18, 1966||Harold J Mock||Multiplex conductor connector apparatus for printed circuits, multiple conductor tape, and the like|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3412367 *||Aug 29, 1966||Nov 19, 1968||Thomas & Betts Corp||Connector assembly|
|US3430186 *||Sep 7, 1967||Feb 25, 1969||Thomas & Betts Corp||Connector assembly|
|US3436715 *||Sep 21, 1966||Apr 1, 1969||Lucas Industries Ltd||Connectors for use with flexible printed circuits|
|US3500289 *||May 19, 1967||Mar 10, 1970||Thomas & Betts Corp||Connector for securing flat conductor cable to printed circuit boards|
|US3671919 *||Feb 9, 1971||Jun 20, 1972||Burroughs Corp||Protective clip and electronic assembly using the same|
|US3728661 *||Mar 10, 1971||Apr 17, 1973||Honeywell Inf Systems||Modular cabling system|
|US3753207 *||Oct 7, 1971||Aug 14, 1973||Bell Electric Research Ltd||Connector for the electrical connection of flexible conductors|
|US3774140 *||Oct 24, 1972||Nov 20, 1973||Gte Automatic Electric Lab Inc||Connectorless plug-in printed wiring card|
|US3825878 *||Sep 10, 1973||Jul 23, 1974||Motorola Inc||Flexible flat cable system|
|US3843951 *||Jan 26, 1973||Oct 22, 1974||Bell Northern Research Ltd||Connection of an electrical component to a flexible circuit|
|US3871733 *||Dec 18, 1972||Mar 18, 1975||Honeywell Inf Systems||Connector assembly having positive retention means|
|US3922054 *||Sep 6, 1974||Nov 25, 1975||Amp Inc||Printed circuit electrical connector|
|US3960423 *||Oct 2, 1974||Jun 1, 1976||Amp Incorporated||Multi-contact connector for substrate-to-board connections|
|US3977756 *||Sep 22, 1975||Aug 31, 1976||General Motors Corporation||Transitional connector for printed circuits|
|US4025896 *||Jun 11, 1975||May 24, 1977||Amp Incorporated||Illuminated display system and method of wiring said system|
|US4057311 *||Nov 11, 1976||Nov 8, 1977||Amp Incorporated||Elastomeric connector for parallel circuit boards|
|US4194801 *||Jul 21, 1978||Mar 25, 1980||C. A. Weidmuller Kg||Cross-connecting comb for electrical terminals|
|US4420203 *||Jun 4, 1981||Dec 13, 1983||International Business Machines Corporation||Semiconductor module circuit interconnection system|
|US4483576 *||Feb 9, 1983||Nov 20, 1984||Bonhomme F R||Connector for printed-circuit boards|
|US4718863 *||May 2, 1986||Jan 12, 1988||Thomas & Betts Corporation||Jumper cable having clips for solder connections|
|US4834660 *||Jun 3, 1987||May 30, 1989||Harris Corporation||Flexible zero insertion force interconnector between circuit boards|
|US4881908 *||Oct 11, 1988||Nov 21, 1989||Beta Phase, Inc.||High density and high signal integrity connector|
|US4895524 *||Mar 21, 1988||Jan 23, 1990||Crouzet S.P.A.||Interface device having rigid planar elements and flexible printed circuits|
|US4911643 *||Aug 3, 1989||Mar 27, 1990||Beta Phase, Inc.||High density and high signal integrity connector|
|US4911653 *||Aug 23, 1989||Mar 27, 1990||Beta Phase, Inc.||Rotation lock and wipe connector|
|US5015193 *||Oct 10, 1989||May 14, 1991||Beta Phase, Inc.||High density and high signal integrity connector|
|US5026291 *||Aug 10, 1990||Jun 25, 1991||E. I. Du Pont De Nemours And Company||Board mounted connector system|
|US5044980 *||Jan 16, 1990||Sep 3, 1991||Beta Phase, Inc.||High density and multiple insertion connector|
|US5276817 *||Aug 12, 1991||Jan 4, 1994||Technosales Company Establishment||System for splitting and connecting computer bus lines|
|US5350319 *||Apr 2, 1993||Sep 27, 1994||Miraco, Inc.||High-density printed circuit connector|
|US5383787 *||Apr 27, 1993||Jan 24, 1995||Aptix Corporation||Integrated circuit package with direct access to internal signals|
|US5383788 *||May 20, 1993||Jan 24, 1995||W. L. Gore & Associates, Inc.||Electrical interconnect assembly|
|US5697794 *||Oct 18, 1994||Dec 16, 1997||Itt Corporation||High density connector assembly|
|US5772467 *||Jun 4, 1996||Jun 30, 1998||Alcoa Fujikura Ltd.||Terminal free connector and method|
|US5895369 *||Apr 4, 1997||Apr 20, 1999||Becton Dickinson And Company||Iontophoresis patch/controller interconnection using a conductive elastomer to provide noise-free electrical contact between patch and controller|
|US5954537 *||Mar 6, 1998||Sep 21, 1999||Thomas & Betts International, Inc.||Flexible flat cable and connector for connecting the same|
|US6022242 *||May 8, 1998||Feb 8, 2000||Thomas & Betts International, Inc.||Connector used for flexible flat cable|
|US6077124 *||Oct 10, 1997||Jun 20, 2000||Molex Incorporated||Electrical connectors for flat flexible circuitry with yieldable backing structure|
|US6336816 *||Jul 19, 2000||Jan 8, 2002||Cray Inc.||Electrical circuit connector with support|
|US6541756||Jan 25, 2001||Apr 1, 2003||Masimo Corporation||Shielded optical probe having an electrical connector|
|US6726504||Dec 11, 2002||Apr 27, 2004||Molex Incorporated||Electrical connector for connecting flat flexible circuitry to discrete terminal pins|
|US6881085 *||Dec 7, 2001||Apr 19, 2005||Japan Aviation Electronics Industry, Limited||Connector for plate object with terminals|
|US7132641||Mar 31, 2003||Nov 7, 2006||Masimo Corporation||Shielded optical probe having an electrical connector|
|US7737355 *||Dec 29, 2004||Jun 15, 2010||Guenther Spelsberg Gmbh & Co. Kg||Electrical junction and joint box for a solar cell module|
|US8956181 *||Dec 13, 2012||Feb 17, 2015||Samsung Electro-Mechanics Co., Ltd.||Connection structure between substrate and FPCB for touch panel|
|US9560998||Aug 7, 2015||Feb 7, 2017||Masimo Corporation||System and method for monitoring the life of a physiological sensor|
|US20030087549 *||Dec 11, 2002||May 8, 2003||Fuerst Robert M.||Electrical connector for connecting flat flexible circuitry to discrete terminal pins|
|US20030162414 *||Mar 31, 2003||Aug 28, 2003||Schulz Christian E.||Shielded optical probe having an electrical connector|
|US20030207599 *||May 6, 2002||Nov 6, 2003||Q-Mark Technology Corp.||Signal extension card socket for aligned wire connector|
|US20050161080 *||Dec 29, 2004||Jul 28, 2005||Guenther Spelsberg Gmbh And Co. Kg||Electrical junction and joint box for a solar cell module|
|US20130154719 *||Dec 13, 2012||Jun 20, 2013||Samsung Electro-Mechanics Co., Ltd.||Connection structure between substrate and fpcb for touch panel|
|USRE34190 *||May 17, 1990||Mar 9, 1993||Rogers Corporation||Connector arrangement|
|DE2642842A1 *||Sep 23, 1976||Mar 31, 1977||Sharp Kk||Elektronischer rechner und verfahren zur herstellung von elektronischen rechnern|
|DE2642842C2 *||Sep 23, 1976||Jul 14, 1983||Sharp K.K., Osaka, Jp||Title not available|
|DE4335524A1 *||Oct 19, 1993||Apr 20, 1995||Blaupunkt Werke Gmbh||Arrangement for attaching a flexible film to a printed circuit board|
|DE10250932B3 *||Oct 31, 2002||May 13, 2004||Fci||Flex-Bus-Steckverbinder|
|EP0721682A1 *||Jul 26, 1994||Jul 17, 1996||Beta Phase, Inc.||Connector device for electrically interconnecting printed circuit board like members|
|EP0721682A4 *||Jul 26, 1994||Apr 2, 1997||Beta Phase Inc||Connector device for electrically interconnecting printed circuit board like members|
|EP0866523A2 *||Mar 22, 1993||Sep 23, 1998||Beta Phase, Inc.||Bridge connector|
|EP0866523A3 *||Mar 22, 1993||Dec 16, 1998||Beta Phase, Inc.||Bridge connector|
|EP0901187A2 *||Aug 5, 1998||Mar 10, 1999||Molex Incorporated||Connector for Connecting a printed circuit board to a flat flexible circuit|
|EP0901187A3 *||Aug 5, 1998||Sep 22, 1999||Molex Incorporated||Connector for Connecting a printed circuit board to a flat flexible circuit|
|EP0908968A2 *||Sep 26, 1998||Apr 14, 1999||Molex Incorporated||Connector for flat flexible circuitry|
|EP0908968A3 *||Sep 26, 1998||Mar 8, 2000||Molex Incorporated||Connector for flat flexible circuitry|
|EP0945920A1 *||Mar 26, 1999||Sep 29, 1999||Molex Incorporated||Connector for flat flexible circuitry|
|EP1150384A2 *||Apr 19, 2001||Oct 31, 2001||J.S.T. Mfg. Co., Ltd.||Connector module for integrated circuit device, and integrated circuit device suitable for use with the same|
|EP1150384A3 *||Apr 19, 2001||Jan 12, 2005||J.S.T. Mfg. Co., Ltd.||Connector module for integrated circuit device, and integrated circuit device suitable for use with the same|
|EP2777094A4 *||Oct 25, 2012||Jul 22, 2015||Carmen Rapisarda||Solder-less electrical assembly|
|WO1990004270A1 *||Oct 11, 1989||Apr 19, 1990||Beta Phase, Inc.||High density and high signal integrity connector|
|WO1991011039A1 *||Jan 15, 1991||Jul 25, 1991||Beta Phase, Inc.||High density and multiple insertion connector|
|WO2002089264A2 *||Mar 11, 2002||Nov 7, 2002||Molex Incorporated||Electrical connector for connecting flat flexible cricuitry to discrete terminal pins|
|WO2002089264A3 *||Mar 11, 2002||Nov 6, 2003||Molex Inc||Electrical connector for connecting flat flexible cricuitry to discrete terminal pins|
|WO2013070442A1||Oct 25, 2012||May 16, 2013||Carmen Rapisarda||Solder-less electrical assembly|
|U.S. Classification||439/493, 439/67, 439/632|
|International Classification||H01R12/12, H05K3/36, H01R12/24, H01R12/28|
|Cooperative Classification||H05K3/365, H01R12/87, H01R12/79|
|European Classification||H01R12/79, H01R12/87|