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WO2009064887A1 - Connecteur de carte enfichable à haute densité - Google Patents

Connecteur de carte enfichable à haute densité Download PDF

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Publication number
WO2009064887A1
WO2009064887A1 PCT/US2008/083405 US2008083405W WO2009064887A1 WO 2009064887 A1 WO2009064887 A1 WO 2009064887A1 US 2008083405 W US2008083405 W US 2008083405W WO 2009064887 A1 WO2009064887 A1 WO 2009064887A1
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WO
WIPO (PCT)
Prior art keywords
relay substrate
terminal
wire
substrate
connector
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/US2008/083405
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English (en)
Inventor
Kiyoshi Adachi
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Molex LLC
Original Assignee
Molex LLC
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 Molex LLC filed Critical Molex LLC
Publication of WO2009064887A1 publication Critical patent/WO2009064887A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01R12/594—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures for shielded flat cable
    • H01R12/598—Each conductor being individually surrounded by shield, e.g. multiple coaxial cables in flat structure
    • 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
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures

Definitions

  • the present invention generally relates to an edge connector, and more particularly to an edge connector that provides xx densities.
  • FIG. 13 is a cross-sectional view of a conventional connector.
  • Reference numeral 801 represents a substrate side connector connected to a substrate (not shown), and which has a housing 811.
  • Reference numeral 991 represents a cable connected to the connector 801, which includes a plurality of wires 992.
  • a connector capable of connecting the cable 991 to the substrate side connector 801 includes a shield member 971 extending from the substrate side connector 801 over the end of the cable 991.
  • the connector includes a relay substrate 911 accommodated within the shield member 971.
  • Grounding lands 921 are provided on both surfaces of the end of the relay substrate that faces the cable 991.
  • a shielding network wire 994 of each wire 992 is soldered to each of the grounding lands 921.
  • Cable side signal lands 961 are formed on both surfaces of the central part of the relay substrate 911.
  • a core 993 of each wire 992 is soldered to each of the cable side signal lands 961.
  • substrate side signal lands 962 connected to the cable side signal land 961 are formed on both surfaces of the relay substrate 911 in the region in close proximity to the substrate side connector 801.
  • a tip 861 of the terminal of the substrate side connector 801 is in contact with each of the substrate side signal lands 962.
  • An object of the present invention is, therefore, to solve the above-mentioned problems encountered by conventional connectors through provision of a durable and reliable edge connector capable of connecting a large number of wires to a counterpart substrate without increasing the width and thickness directions by arranging the cables connected to the front and rear surfaces of a relay substrate so that the cables are arranged side-by-side in the width direction, and that the positions of the wires connected to the front surface are shifted widthwise from the positions of the wires connected to the rear surface and are capable of appropriately addressing multi-polarization of signals in spite of a simple structure and low costs as well as a compact design of the relay connector.
  • the present invention provides an edge connector comprising: a first connector with a first housing and a terminal loaded in the first housing, which connector is connected to an edge of a substrate; and a second connector with a second housing and a relay substrate loaded in the second housing and having one end connected to cables and the other end connected to the terminal, the second connector being fitted to the first connector, wherein the relay substrate is provided with a plurality of wires formed in front and rear surfaces thereof, and wherein the wires are arranged side-by-side to form a widthwise row on the relay substrate along each surface of the relay substrate and positions of the wires arranged on one surface of the relay substrate are shifted widthwise from positions of the wires arranged on the other surface of the relay substrate.
  • the wires include wire pairs comprised of a signal wire and a ground wire, and wherein the wire pairs are arranged side-by- side to form a widthwise row along each surface of the relay substrate. The positions on the pairs on one surface of the relay substrate are shifted widthwise from positions of the pairs on the other surface of the substrate.
  • a length of a path over the signal line and the signal wire is equal to that of a path over the ground line and the ground wire.
  • the terminal comprises a first terminal connected to a wire formed in one surface of the relay substrate and a second terminal connected to a wire formed in the other surface of the relay substrate, and wherein the first and second terminal are arranged in a manner such that a front contact part of the first terminal is connected to a wire formed in the one surface of the relay substrate, that a front contact part of the second terminal is connected to a wire formed in the other surface of the relay substrate, and that rear contact parts of the first and second terminals are connected to connecting electrodes provided on the one surface of the substrate.
  • the length of conductive path of the first terminal is equal to the length of conductive path of the second terminal.
  • the relay substrate is comprised of two substrates juxtaposed in two rows and the wires on the relay substrate in one row are connected via the terminal to traces or pads provided on one surface of the substrate and the conductive wires on the relay substrate in the other row are connected via the terminal to other traces or pads on the other surface of the substrate.
  • the wires are arranged in a zigzag pattern.
  • the edge connector is configured so that wires connected to the front and rear surfaces of a relay substrate are arranged so that the wires are arranged side by side width wise of the relay substrate and that the positions of the wires connected to the front surface are shifted widthwise from the positions of the wires connected to the rear surface.
  • FIG. 1 is a perspective view of an edge connector constructed in accordance with the principles of the present invention in a slightly disassembled state;
  • FIG. 2 is the same view as FIG. 1, but with the two parts fitted together;
  • FIG. 3 A is a rear end elevational view of the edge connector of FIG. 1;
  • FIG. 3B is a cross-sectional view of the connector of FIG. 3 A taken along arrow A-A thereof;
  • FIG. 3 C is a cross-sectional view of the connector of FIG. 3 A taken along arrow
  • FIG. 4 is an exploded perspective view of the connector of FIG. 2, in the state before being fitted together, and with the housing removed for clarity;
  • FIG. 5 is a side elevational view of the connector of FIG. 4;
  • FIG. 6 is a perspective view showing the terminals in place on the circuit boards;
  • FIG. 7 A is a front view illustrating the structure of the substrate side connector of the present invention.
  • FIG. 7B is a top plan view of the substrate side connector of FIG. 7A;
  • FIG. 7C is a rear elevational view of the substrate side connector of FIG. 7 A;
  • FIG. 7D is a side elevational view of the substrate side connector of FIG. 7 A;
  • FIG. 8 is a cross-sectional view of the substrate side connector of FIG. 7 A taken along line C-C thereof;
  • FIG. 9A is a perspective view of a first terminal used in the present invention
  • FIG. 9B is a side view of the first terminal of FIG. 9A;
  • FIG. 9C is a top plan view of the first terminal of FIG. 9 A;
  • FIG. 1 OA is a perspective view of a second terminal used in the present invention.
  • FIG. 1OB is a side elevational view of the second terminal of FIG. 1OA
  • FIG. 1OC is a top plan view of the second terminal of FIG. 1OA
  • FIG. 1 IA is a rear elevational view illustrating the structure of a wire side connector of the present invention
  • FIG. 1 IB is a cross-sectional view of the wire side connector of FIG. 1 IA taken along line D-D thereof;
  • FIG. 12A is a rear elevational view illustrating the relationship between a relay substrate and the wires of the wire side connector of the present invention, with the housing removed for clarity;
  • FIG. 12B is a top plan view of the assembly of FIG. 12 A;
  • FIG. 12C is a front elevational view of the assembly of FIG. 12B;
  • FIG. 12D is a side elevational view of the assembly of FIG. 12C;
  • FIG. 12E is a perspective view of the assembly of FIG. 12B.
  • FIG. 13 is a schematic view illustrating a conventional connector.
  • a substrate side connector 1 is shown as a first connector that is one of a pair of edge connectors according to an embodiment of the present invention.
  • the substrate side connector 1 is connected to one edge of the substrate 91, shown as a circuit board.
  • a wire side connector 101 is provided as a second connector that is the other of the pair of edge connectors.
  • the wire side connector 101 is connected to the tips of cables 191.
  • the substrate 91 may be a printed circuit board used in an electronic device such as a computer or an electric appliance such as a home electronics product, an FPC (Flexible Printed Circuit), or a flat cable called an FFC (Flexible Flat Cable) or the like, or of any other type.
  • a plurality of connecting pads or electrodes 93 are arranged widthwise on the substrate 91 with a predetermined pitch along the upper edge shown in FIG. 4. Each pad 93 is connected to one of a plurality of conductive traces 92 formed on both surfaces of the substrate 91 and also arranged widthwise on the substrate 91 with a predetermined pitch. The pitch and number of the connecting pads 93 and traces 92 may be set as required.
  • the cable 191 is a small-diameter coaxial cable suitable for transmitting high- frequency signals. As shown in FIG.
  • the cable 191 has a linear body with a substantially circular cross section including a conductive core wire 195 as a signal line arranged in the center, an inner coating 194 covering the core wire 195, a conductive shield member 193 that serves as a ground line which is made of a metallic mesh or the like arranged to cover the inner coating 194, and an insulating outer coating 192 covering the shield member 193.
  • the cables 191 are aligned widthwise of the wire side connector 101, forming a plurality of rows. The pitch and number of the cables 191 may be set as required.
  • the cables, or wires, 191 are arranged widthwise of the relay substrates 131 , to respectively form one row along the rear edges of the relay substrates 131 arranged in two rows thus forming four wire rows in total.
  • the cables 191 are arranged along the top surfaces of the relay substrate 131 and are shifted widthwise from the positions of the cables 191 arranged along the bottom rear surfaces of the relay substrate 131.
  • the cables 191 are arranged in a zigzag pattern as viewed from rear end of the wire side connector 101.
  • the substrate side connector 1 includes a first housing 11 formed from an insulative material such as a synthetic resin, and conductive terminals 51 loaded therein.
  • the terminal group 51 is comprised of a first terminal group 51a arranged widthwise of the first housing 11 so as to connect to the connecting pads 93 provided on the top surface of the substrate 91 and a second terminal group 51b arranged widthwise so as to connect to the connecting pads 93 provided on the bottom surface of the substrate 91.
  • FIG. 5 the terminal group 51 is comprised of a first terminal group 51a arranged widthwise of the first housing 11 so as to connect to the connecting pads 93 provided on the top surface of the substrate 91 and a second terminal group 51b arranged widthwise so as to connect to the connecting pads 93 provided on the bottom surface of the substrate 91.
  • the first and second terminal groups 51a, 51b include a first terminal 61a connected to a wire pair 171 formed on the outer surfaces of the relay substrates 131 in two rows of the wire side connector 101, and a second terminal 61b connected to a wire pair 171 formed on the inner surfaces of the relay substrates 131 in two rows.
  • the first housing 11 has a cross section of a substantially rectangular shape extending along the edge of the substrate 91. As shown in FIG. 3, the first housing 11 includes a top board part 12, a bottom board part 14, and a terminal holding wall part 16 connecting the top board part 12 and bottom board part 14 at the opposite side of the fitting surface, that is, at the rear surface as well as holding the first terminal 61a and second terminal 61b of the terminal group 51. Furthermore, the first housing 11 includes a pair of fitting arms 15 formed to extend to a fitting surface, that is, the opposite side of the substrate 91 (upward in FIG. 1). The fitting arms 15 are fitted into fitting grooves 115 formed on both ends of a second housing 111 of the wire side connector 101 to position the substrate side connector 1 and the wire side connector 101.
  • the first housing 11 includes convex mounting parts 17 integrally formed to extend to the rear surface.
  • Each of the convex mounting parts 17 has an inner surface abutted against the surface of the substrate 91 to position the substrate side connector 1 and the substrate 91.
  • mounting holes 18 penetrating the convex mounting parts in the thickness direction. By aligning the mounting holes 18 with substrate side mounting holes 98 formed on the substrate 91 and inserting mounting members (not shown) such as bolts, the substrate side connector 1 can be attached to the substrate 91.
  • the convex mounting parts 17 are formed on the top board part 12 alone in the illustrated example, the convex mounting parts 17 may also be formed on the bottom board part 14.
  • the wire side connector 101 includes a second housing 111 integrally formed by an insulating material such as a synthetic resin, and a plurality of relay substrates 131 arranged in the width direction of the second housing 111 so as to form a plurality of rows in a vertical direction. While the relay substrates 131 may be arranged to form three or more rows, the relay substrates 131 are arranged to form two rows in this example. While the relay substrate 131 is divided into three portions in each row, the relay substrate 131 may be divided into two portions, or four or more portions. The relay substrate 131 may be left undivided.
  • Each relay substrate 131 is a member having a shape of a rectangular plate formed from an insulative material.
  • the wire of each wire pair 171 is made of a conductive material and may be a coating formed on the surface of the relay substrate 131 by way of plating or vapor deposition, or may be a foil or a thin plate affixed to the surface of the relay substrate 131.
  • the conductive wire pairs 171 are arranged on the top and bottom surfaces of the relay substrate 131 widthwise so that the positions of the wire pairs 171 arranged on the top surface are shifted widthwise with respect to the positions of the wire pairs 171 arranged on the bottom surface.
  • Two wires constituting the wires pair 171 extend parallel to each other from the fitting surface to the opposite side of the fitting surface.
  • One of the wires is a ground wire 151 and the other is a signal wire 161.
  • At the end of each ground wire 151 on the bottom surface side is a broad ground pad 152.
  • a broad signal pad 162 at the end of each signal wire 161 is also formed on the bottom surface side.
  • the ground pad 152 to which the shield member 193 of the cable 191 is connected is arranged closer to the rear surface than the signal pad 162 to which the core wire 195 of the cable 191 is connected.
  • the conductive path length of a signal line comprised of the core wire 195 of the cable 191 and the signal wire 161 is set equal to the conductive path length of a ground line comprised of the shield member 193 of the cable 191 and the ground wire 151.
  • the conductive path length is equal for all cables 191 and the impedance matching is provided, so that transmission of multi-channelized signals does not degrade the signal characteristics.
  • the wire pairs 171 are arranged so that the wire pairs 171 on the top surface of the relay substrate 131 are offset from the positions of the wire pairs 171 arranged on the bottom surface.
  • the second housing 111 includes a top board part 112, a bottom board part 114, a wire holding wall part 116 connecting the top board part 112 and the bottom board part 114 at the rear surface as well as holding the cable 191, and a plurality of partitioning wall parts 117 holding the ends of each relay substrate 131 widthwise.
  • the fitting grooves 115 formed at the ends of the second housing 111 widthwise are defined by the top board part 112, bottom board part 114, and the outer partitioning wall part 117.
  • the second housing 111 comprises a relay substrate accommodating opening 113 accommodating a relay substrate 131 inside. This opening 113 is defined by the top board part 112, bottom board part 114, wire holding wall part 116, and partitioning wall part 117, and has an open fitting surface. In the illustrated example, three relay substrate accommodating openings 113 are formed. Inside each relay substrate accommodating opening 113 are accommodated two relay substrates 131 in upper and lower positions.
  • One portion of a relay substrate 131 accommodated in the relay substrate accommodating opening 113 that is, the range of a predetermine length from the tip facing the fitting surface protrudes beyond the end of the relay substrate accommodating opening 113 facing the fitting surface.
  • Each cable 191 is inserted into a through hole formed in the wire holding wall part
  • an inner coating 194, a shield member 193, and an outer coating 192 are removed so that the tip part, the core wire 195, the inner coating 194, and the shield member 193 are sequentially exposed in this order.
  • the exposed core wire 195 is electrically connected to the signal pad 162 and fixed thereto via soldering.
  • the exposed shield member 193 is connected to the ground pad 152 and fixed thereto via soldering.
  • the cables 191 are arranged widthwise of the relay substrate 131 to form a single row on each of the top and bottom surfaces of the relay substrates 131 arranged in two rows, and connected to the relay substrates 131 to form four rows in total.
  • the tip of the cable 191 is desirably bent toward the relay substrate 131 so that the exposed core wire 195 abuts or comes close to the signal pad 162, and the tip of the cable 191 is straight for easy positioning of the parts including the tip of the cable 191, ground pad 152, signal pad 162 and the like in FIGS. 3 through 6 and FIGS. 11 and 12 mentioned below.
  • a solder for connecting the shield member 193 and the core wire 195 to the ground pad 152 and the signal pad 162 is not shown in FIGS. 3 through 6 and FIGS. 11 and 12.
  • the portions protruding beyond the end of the relay substrate accommodating opening 113 on the relay substrate 131 facing the fitting surface are inserted into a first insertion opening 13a and a second insertion opening 13b of the substrate side connector 1 described below.
  • the ground wire 151 and the signal wire 161 formed on the outward surfaces of the relay substrates 131 arranged in two rows come into contact with the first terminal 61a.
  • the ground wire 151 and the signal wire 161 formed on the inward surfaces of the relay substrates 131 arranged in two rows come into contact with the second terminal 61b.
  • the first housing 11 has an insertion opening 13 formed to recess from the fitting surface to the rear surface and having a slot shape extending in the width direction.
  • the insertion opening 13 is divided into two portions in a vertical direction by a partitioning wall part 16a protruding from the terminal holding wall part 16 toward the fitting surface.
  • the insertion opening 13 is divided into a first insertion opening 13a on the upper side or on the side of the top board part 12, and a second insertion opening 13b on the lower side or on the side of the bottom board part 14.
  • the portions of the wire side connector 101 protruding beyond the end of the relay substrate accommodating opening 113 on the relay substrate 131 facing the fitting surface are inserted into the first insertion opening 13a and the second insertion opening 13b.
  • the first housing 11 has an edge insertion groove part 19 formed to recess from the rear surface to the fitting surface and having a slot shape extending in the width direction.
  • the first terminal 61a is a member integrally formed by punching out a metal plate and bending the same. As shown in FIG. 9, the first terminal 61a has a broad body 63a, a front arm part 65a connected to the front end of the body 63a, extending forward, and bent halfway in the obliquely upward direction, and a front contact part 64a formed in close proximity to the front end of the front arm part 65a and curved so as to protrude upward.
  • the first terminal 61a comprises a vertical wall part 68a connected to the rear end of the body 63a, bent so as to be substantially orthogonal to the body 63a, and extending upward, a horizontal wall part 67a connected to the rear end of the vertical wall part 68a, bent so as to be substantially orthogonal to the vertical wall part 68a, and extending rearward, a rear arm part 66a connected to the rear end of the horizontal wall part 67a and extending rearward, and obliquely upward, and a rear contact part 62a formed in close proximity to the rear end of the rear arm part 66a and curved so as to protrude upward.
  • the side surface of the portion of the body 63a, the vertical wall part 68a, and the horizontal wall part 67a have a shape of a crank or ascending steps.
  • the body 63a is a portion held by the terminal holding part 16 of the first housing 11.
  • the front arm part 65a is a portion protruding into each of the first insertion opening 13a and the second insertion opening 13b.
  • the front contact part 64a is a portion coming into contact with the ground wire 151 and the signal wire 161 of the relay substrate 131 inserted into the first insertion opening 13a and the second insertion opening 13b.
  • the vertical wall part 68a, the horizontal wall part 67a, and the rear arm part 66a are portions protruding into an edge insertion groove part 19.
  • the rear contact part 62a is a portion coming into contact with the connection electrode 93 at the edge of the substrate 91 inserted into the edge insertion groove part 19.
  • the second terminal 61b is a member integrally formed by punching out a metal plate and bending the same. As shown in FIG. 10, the second terminal 61b has a broad body 63b, a front arm part 65b connected to the front end of the body 63b, extending forward and bent halfway in the obliquely downward direction, and a front contact part 64b formed in close proximity to the front end of the front arm part 65b and curved so as to protrude downward.
  • the second terminal 61b includes a vertical wall part 68b connected to the rear end of the body 63 b, bent so as to be substantially orthogonal to the body 63b, and extending downward, a horizontal wall part 67b connected to the rear end of the vertical wall part 68b, bent so as to be substantially orthogonal to the vertical wall part 68b, and extending rearward, a rear arm part 66b connected to the rear end of the horizontal wall part 67b and extending rearward and obliquely upward, and a rear contact part 62b formed in close proximity to the rear end of the rear arm part 66b and curved so as to protrude upward.
  • the side surface of the portion of the body 63b, the vertical wall part 68b, and the horizontal wall part 67b have a shape of a crank or ascending steps.
  • the body 63b is a portion held by the terminal holding part 16 of the first housing 11.
  • the front arm part 65b is a portion protruding into each of the first insertion opening 13a and the second insertion opening 13b.
  • the front contact part 64b is a portion coming into contact with the ground wire 151 and the signal wire 161 of the relay substrate 131 inserted into the first insertion opening 13a and the second insertion opening 13b.
  • the vertical wall part 68b, the horizontal wall part 67b, and the rear arm part 66b are portions protruding into the edge insertion groove part 19.
  • the rear contact part 62b is a portion coming into contact with the connection electrode 93 at the edge of the substrate 91 inserted into the edge insertion groove part 19.
  • FIG. 9B The side surface shape of the first terminal 61a coming into contact with the ground wire 151 and the signal wire 161 formed on the downward surface of the lower relay substrate 131 is shown in FIG. 9B.
  • FIG. 1OB The side surface shape of the second terminal 61b coming into contact with the ground wire 151 and the signal wire 161 formed on the upward surface of the lower relay substrate 131 is shown in FIG. 1OB.
  • the front arm part 65a of the first terminal 61a and the front arm part 65b of the second terminal 61b are opposed to each other in lower and upper positions and sandwich the lower relay substrate 131 from below and from above when viewed from the side surface.
  • the horizontal wall part 67a and the rear arm part 66a of the first terminal 61a and the horizontal wall part 67b and the rear arm part 66b of the second terminal 61b cannot be discriminated from each other while overlapping each other when viewed from the side surface. That is, when the second terminal group 51b is viewed from the side surface, it is impossible to discriminate the horizontal wall part 67a and the rear arm part 66a of the first terminal 61a from the horizontal wall part 67b and the rear arm part 66b of the second terminal 61b.
  • the rear arm part 66a and the rear arm part 66b extend rearward and obliquely upward.
  • the rear contact part 62a and the rear contact part 62b come into contact with the connecting electrodes 93 provided on the downward surface of the edge of the substrate 91. This can be seen in FIGS. 5 and 8.
  • the side surface shape of the first terminal 61a coming into contact with the ground wire 151 and the signal wire 161 formed on the upward surface of the upper relay substrate 131 in FIG. 6 is a vertically inverted shape of that shown in FIG. 9B.
  • the side surface shape of the second terminal 61b coming into contact with the ground wire 151 and the signal wire 161 formed on the downward surface of the upper relay substrate 131 is vertically inverted shape of that shown in FIG. 1OB.
  • the front arm part 65a of the first terminal 61a and the front arm part 65b of the second terminal 61b are opposed to each other in lower and upper positions and sandwich the upper relay substrate 131 from below and from above when viewed from the side surface.
  • the horizontal wall part 67a and the rear arm part 66a of the first terminal 61a and the horizontal wall part 67b and the rear arm part 66b of the second terminal 61b cannot be discriminated from each other while overlapping each other when viewed from the side surface. That is, when the first terminal group 51a is viewed from the side surface, it is impossible to discriminate the horizontal wall part 67a and the rear arm part 66a of the first terminal 61a from the horizontal wall part 67b and the rear arm part 66b of the second terminal 61b.
  • the rear arm part 66a and the rear arm part 66b extend rearward and obliquely upward.
  • the rear contact part 62a and the rear contact part 62b come into contact with the connecting electrodes 93 provided on the upward surface of the edge of the substrate 91. This can be seen in FIGS. 5 and 8.
  • first terminals 61a adjacent to each other are understood as a single set and two second terminals 61b adjacent to each other are understood as a single set
  • sets of first terminals 61a and sets of second terminals 61b are alternately arranged in the width direction of the first housing 11 in the first terminal group 51a and the second terminal group 51b as shown in FIG. 6.
  • the sets of the first terminals 61a as pairs of terminals 61 connected to the wire pairs 171 arranged on one surface are shifted in the width direction of the relay substrate 131 from the sets of the second terminals 61b as pairs of terminals 61 connected to the conductive wire pairs 171 arranged on the other surface.
  • the positions of the wire pairs 171 arranged on the front surface of the relay substrate 131 are shifted in the width direction of the relay substrate 131 from the positions of the wire pairs 171 arranged on the rear surface.
  • the positions of the cables 191 connected to the wire pairs 171 arranged on the front surface of the relay substrate 131 are shifted in the width direction of the relay substrate 131 from the positions of the cables 191 connected to the conductive wire pairs 171 arranged on the rear surface. This is the same for any of the relay substrates 131 arranged in two rows.
  • the cables 191 arranged on the front and rear surfaces of each relay substrate 131 arranged in two rows and arranged in the width direction of the wire side connector 101 to form four rows in total show a zigzag pattern when observed from the rear side as shown in FIG. 1 IA. That is, the cables 191 arranged in the width direction of the wire side connector 101 with a predetermined pitch to form four rows in total are arranged so that the cables 191 of a row adjacent to each other are shifted by half pitch in the width direction of the wire side connector 101.
  • the conductive path length from the cable 191 to the connection electrode 93 on the substrate 91 is equal for all cables 191 and the impedance matching is provided, so that transmission of multi-channelized signals does not degrade the signal characteristics.
  • An edge connector comprises a substrate side connector 1 comprising a first housing 11 and a terminal 61 loaded in the first housing 11, the substrate side connector 1 connected to the edge part of a substrate 91, and a wire side connector 101 comprising a second housing 111 and a relay substrate 131 loaded in the second housing 111 and having one end connected to cables 191 and the other end connected to the terminal 61, the wire side connector 101 fitted to the substrate side connector 1.
  • the relay substrate 131 has a plurality of wires formed on the top and bottom surfaces.
  • the plurality of cables 191 align to form a row in the width direction of the relay substrate 131 along each of the surfaces of the relay substrate 131 and the positions of the cables on one surface of the relay substrate 131 are shifted widthwise from the positions of the cables on the other surface of the relay substrate 131.
  • the provided edge connector with its simple structure, low cost and compact design, appropriately supports multi-polarization of signals.
  • the edge connector comprises a plurality of conductive wire pairs 171 comprised of a signal wire 161 connected to the core wire 195 of the cable 191 and a ground wire 151 connected to a shield member 193.
  • the wire pairs 171 align to form a row widthwise on each of the surfaces of the relay substrate 131 and are arranged so that the positions of the conductive wire pairs 171 on one surface of the relay substrate 131 are offset with respect to the positions of the wire pairs 171 on the other surface.
  • This provides a broad space between adjacent conductive wire pairs 171 on the same surface, thus preventing possible interference between signals transmitted by adjacent conductive wire pairs 171. It is possible to adjust the conductive path length of a signal wire 161 or a ground wire 151 by forming an extra pattern of the signal wire 161 or ground wire 151 in a space between adjacent conductive wire pairs 171.
  • a conductive path length over the core wire 195 of the cable 191 and the signal wire 161 is equal to a conductive path length over the shield member 193 and the ground wire 151. This provides impedance matching and the characteristics of signals transmitted by a signal line and a ground line are not degraded.
  • the conductive path length is equal for all cables 191 and the impedance matching is provided, so that transmission of multi-channelized signals does not degrade the signal characteristics.
  • first terminal 61a and the second terminal 61b align so that the front contact part 64a of the first terminal 61a is connected to a wire formed on one surface of the relay substrate 131, that the front contact part 64b of the second terminal 61b is connected to a wire formed on the other surface of the relay substrate 131, and that the rear contact part 62a of the first terminal 61a and the rear contact part 62b of the second terminal 61b are connected to connecting electrodes 93 provided on one surface of the substrate 91.
  • the conductive path length of the first terminal 61a is equal to the conductive path length of the second terminal 61b.
  • the relay substrates 131 are arranged in two rows.
  • the wires on the relay substrate 131 in one row are connected via the terminal 61 to connecting electrodes 93 provided on one surface of the substrate 91 and the conductive wires on the relay substrate 131 in the other row are connected via the terminal 61 to connecting electrodes 93 provided on the other surface of the substrate 91. It is thus possible to reduce the pitch of the cables 191 in each row and shorten the space between adjacent rows thus arranging cables 191 in a denser fashion, thereby suppressing the dimensions of the wire side connector 101 both widthwise and height- wise. It is also possible to suppress the dimensions of the substrate side connector 1 fitted to the wire side connector 101 in the width direction and thickness direction.
  • the present invention is not limited to the above-described embodiments, and may be changed in various ways based on the gist of the present invention, and these changes are not eliminated from the scope of the present invention.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

L'invention concerne un connecteur à haute densité permettant de relier une pluralité de fils à une carte à circuit imprimé. Ledit connecteur inclut une pluralité de cartes imprimées intermédiaires sur lesquelles sont fixés les fils en rangées décalées. Les cartes imprimées intermédiaires sont maintenues empilées dans un premier connecteur. Un second connecteur qui s'apparie avec le premier connecteur possède une série de bornes qui sont reliées à des extrémités conjuguées de celui-ci vers une carte imprimée secondaire. Ces bornes ont leurs parties en contact qui s'étendent à l'intérieur d'une ouverture du second connecteur dans lequel s'adapte le premier connecteur. Les bornes se mettent en prise avec des bords conjugués des cartes imprimées intermédiaires pour parfaire les connexions.
PCT/US2008/083405 2007-11-13 2008-11-13 Connecteur de carte enfichable à haute densité Ceased WO2009064887A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-293821 2007-11-13
JP2007293821A JP4920557B2 (ja) 2007-11-13 2007-11-13 エッジコネクタ

Publications (1)

Publication Number Publication Date
WO2009064887A1 true WO2009064887A1 (fr) 2009-05-22

Family

ID=40332782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/083405 Ceased WO2009064887A1 (fr) 2007-11-13 2008-11-13 Connecteur de carte enfichable à haute densité

Country Status (2)

Country Link
JP (1) JP4920557B2 (fr)
WO (1) WO2009064887A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5679008A (en) * 1994-12-15 1997-10-21 Kel Corporation Electrical connector
US5842881A (en) * 1993-08-03 1998-12-01 International Business Machines Corporation Substrate-embedded pluggable receptacles for connecting clustered electrical cables to a module
WO1999019213A2 (fr) * 1997-10-14 1999-04-22 Berg Technology, Inc. Ensemble epissure de plusieurs cables blindes
US20020002004A1 (en) * 1998-08-20 2002-01-03 Junichi Akama Balanced-transmission cable-and-connector unit
US20060234556A1 (en) * 2005-04-19 2006-10-19 Hon Hai Precision Ind. Co., Ltd. Connector assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3297866B2 (ja) * 1999-08-24 2002-07-02 日本航空電子工業株式会社 ケーブルコネクタ
TWI244810B (en) * 2002-05-24 2005-12-01 Fci Inc Cable hardness assembly, plug assembly, and connector system
JP2005251681A (ja) * 2004-03-08 2005-09-15 Hitachi Cable Ltd 電気コネクタ及びその製造方法
JP4673191B2 (ja) * 2005-11-15 2011-04-20 富士通コンポーネント株式会社 ケーブルコネクタ
JP4948206B2 (ja) * 2007-03-02 2012-06-06 ホシデン株式会社 電気コネクタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5842881A (en) * 1993-08-03 1998-12-01 International Business Machines Corporation Substrate-embedded pluggable receptacles for connecting clustered electrical cables to a module
US5679008A (en) * 1994-12-15 1997-10-21 Kel Corporation Electrical connector
WO1999019213A2 (fr) * 1997-10-14 1999-04-22 Berg Technology, Inc. Ensemble epissure de plusieurs cables blindes
US20020002004A1 (en) * 1998-08-20 2002-01-03 Junichi Akama Balanced-transmission cable-and-connector unit
US20060234556A1 (en) * 2005-04-19 2006-10-19 Hon Hai Precision Ind. Co., Ltd. Connector assembly

Also Published As

Publication number Publication date
JP2009123405A (ja) 2009-06-04
JP4920557B2 (ja) 2012-04-18

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