EP0365179A1 - Electrical connector system - Google Patents
Electrical connector system Download PDFInfo
- Publication number
- EP0365179A1 EP0365179A1 EP89310203A EP89310203A EP0365179A1 EP 0365179 A1 EP0365179 A1 EP 0365179A1 EP 89310203 A EP89310203 A EP 89310203A EP 89310203 A EP89310203 A EP 89310203A EP 0365179 A1 EP0365179 A1 EP 0365179A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contacts
- connector
- ground
- housing
- signal
- 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.)
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
- H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
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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
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
- H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
- H01R12/735—Printed circuits including an angle between each other
- H01R12/737—Printed circuits being substantially perpendicular to each other
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
beams (124,146) thereon so that when the two connectors (12,14) are mated, the ground contacts (28,30,72,74) complete a ground circuit and the plates of the ground contacts in the other connector (14) provide a shield between adjacent columns of mated signal carrying contacts (32,76).
Description
- The invention disclosed herein relates to signal integrity in high density, high frequency connector systems of the type used to electrically interconnect high frequency signal circuits on backplanes, daughter cards and other like substrates.
- In the high speed technology of modern electronics, high frequency connectors have been developed for use with backplanes and printed circuit cards; e.g., daughter cards. Such connectors require shielding or ground planes between signal pins; e.g., a stripline configuration, to provide high frequency signal integrity and minimize interference from foreign sources. One such arrangement is disclosed in U.S. Patent 4,632,476 wherein a terminal grounding unit comprises an insulating member having a row and column configuration of apertures for receiving pin terminals attached to and extending outwardly from a backplane on which the insulating member is mounted. Further, channels are provided in the insulating member between columns of apertures for receiving a shielding member which is terminated to U-shaped female contacts attached to the backplane and extending into the channels through slots in the channel floors. This arrangement provides a shield or ground plane between adjacent columns of pin terminals carrying high frequency signals.
- U.S. Patent 4,571,014 discloses a high frequency modular connector for use with a circuit board to interconnect the circuit board with a backplane. The connector comprises modules each having a pair of rectangular-shaped, circuit board members. The members are formed with several parallel fingers separated by slots and contain a passage in which a female contact is disposed. Each member in each module is bracketed with a shield member and dielectric spacer. A conductive shield member of a different configuration is positioned between adjacent modules. While the shield members shield adjacent modules, a corrugated conductive member is positioned in the slots between the fingers to shield adjacent female contact disposed in the passages in the several fingers. The shield members and corrugated member are connected to ground circuits to complete the ground paths.
- It is now proposed to provide ground reference contacts in high density, high frequency two-piece connectors wherein the ground reference contacts provide shielding between adjacent columns of signal carrying contacts. It is further proposed to provide power-carrying contacts in conjunction with ground reference contacts where required.
- According to the invention, a two piece, high density electrical connector system is provided with ground contacts between columns of signal contacts with the ground contacts of one connector having outwardly projecting blades and the mating ground contacts of the other connector including plates with cantilever beams, the plates providing a shield between columns of mated signal contacts and the cantilever beams electrically engaging the blades to complete ground circuits between backplanes and circuit cards associated with the two connectors.
- In order that the present invention may be more readily understood, reference will now be made by way of example to the accompanying drawings, in which:-
- Figure 1 is a perspective view of the electrical connector system constructed in accordance with the present invention;
- Figures 2A-2D are various views of the housing of the first connector of the system;
- Figures 3A-3C are perspective views illustrating the conductive contacts of the first connector;
- Figures 4A,4B are views showing the first connector;
- Figures 5A-5D are various views of the housing of the second connector of the system;
- FIGURES 6A-6C are perspective views of the conductive contacts of the second connector;
- FIGURES 7A,7B are cross-sectional views of the second connector.
- FIGURES 8A,8B are cross-sectional views of the mated first and second connectors;
- FIGURES 9A-9D are various views showing another embodiment of the first connector;
- FIGURES 10A-10C are various views showing yet another embodiment of the first connector;
- FIGURES 11A,11B are views showing another embodiment of conductive contacts for use in the second connector;
- FIGURES 12A,12B are perspective views of yet another embodiment of conductive contacts for use in the second connector;
- FIGURES 13A,13B are plane views showing other embodiments of signal contacts for use in the second connector;
- FIGURE 14 is a cross-sectional view of another embodiment of the second connector mated with a first connector;
- FIGURE 15 is a perspective view of still another modification of a conductive contact;
- FIGURE 16 is a perspective, exploded view of the electrical connector system constructed in accordance with the preferred embodiment of the present invention;
- FIGURES 17 and 18 are cross-sectional views of contact receiving cavities in the receptacle connector taken along lines 17-17 and 18-18 of Figure 16;
- FIGURE 19 is a perspective view of ground contacts;
- FIGURE 20 is a perspective view of a signal receptacle contact;
- FIGURE 21 is the cross-sectional view of Figure 17 showing the ground contacts positioned in the appropriate cavities in the receptacle connector;
- FIGURE 22 is the cross-sectional view of Figure 18 showing the signal receptacle contacts positioned in the appropriate cavities in the receptacle connector;
- FIGURE 23 is a cross-sectional view of the mated header and receptacle connectors showing the engaged signal contacts of both connectors; and
- FIGURE 24 is a cross-sectional view of the mated header and receptacle connectors showing the engaged ground contacts of both connectors.
- The electrical connector system of the present invention includes a first connector known in the art as a "pin header" and which is normally mounted on a mother board or backplane. The system further includes a second connector, known as a "receptacle", which plugs into or mates with the pin header and on which is mounted a printed circuit board commonly referred to as a "daughter card". The connectors have conductive contacts which carry signals between circuits on the card and backplane.
- The electrical connector system disclosed herein is based on the high density interconnect system made and sold by AMP Incorporated of Harrisburg, PA. The two-piece connectors have two or more columns of signal contacts and are sold under the product identifier of "HDI".
-
Electrical connector system 10 shown in Figure 1 includesfirst connector 12, mounted onbackplane 16 andsecond connector 14 with itsdaughter card 18 adjacent thereto. -
Connector 12 includesdielectric housing 20 havingbase 22 andsidewalls power contacts 28,ground contacts 30 andsignal contacts 32. - Figures 2A,2B,2C and 2D illustrate the structure of
housing 20 in more detail.Sidewalls floor 34,cavity 36. Acolumn 38 androw 40 configuration ofpassages housing 20 which extend throughbase 22, opening ontofloor 34 andlower surface 48.Passages 42 areadjacent sidewall 24,passages 44 areadjacent sidewall 26 andpassages 46 are positioned therebetween. As shown, eachcourse 38 includes onepassage 42, onepassage 44 and fourpassages 46. The interior details ofpassages contacts - Associated with
passages adjacent columns 38 and extend towards the center ofcavity 36. As shown in Figure 2D, channels 42a, 44a extend into but do not go throughbase 22. -
Housing 20 is preferably molded, using a plastics material such as a high temperature thermoplastic. -
Contacts compliant section 50 andlead 52. Power andground contacts section 54, L-shaped straps 56 andblades 58. As shown,straps 56 onrespective contacts offset blades 58 relative tocompliant section 50, leads 52 and retainingsections 54.Blade 58 onground contact 28 is longer thanblade 58 onpower contact 30, a common practice in the art. -
Signal contact 32 further includes retainingsection 60 andpin 62. -
Contacts - Figures 4A and 4B illustrate the positioning of
contacts housing 20 to formfirst connector 12. -
Power contacts 28 are positioned inpassages 44adjacent sidewall 26 withstraps 56 thereon being received in channels 44a. -
Ground contacts 30 are positioned inpassages 42adjacent sidewall 24 withstraps 56 being received in channels 42a. -
Signal contacts 32 are positioned inpassages 46 withpins 62 projecting intocavity 36. -
Compliant sections 50 and leads 52 of allcontacts lower surface 48 withsection 50 being adapted for a frictional fit into plated throughholes backplane 16 and leads 52, which project beyondbackplane 16, being adapted for wire wrapping purposes. -
Second connector 14 includesdielectric housing 70,power contacts 72,ground contacts 74 andsignal contacts 76. Figures 5A-5D illustrate the structure ofhousing 70 in detail. -
Housing 70 is arectangular block 78 with opposingsides front surface 86 and arear face 88. As seen in Figures 5C,5D,side 80 extends rearwardly from front surface 86 a shorter distance relative to opposingside 82 and includesledge 89. - A
column 90 and row 92 (Figure 5B) configuration ofpassages 94, provided inhousing 70, open onfront surface 86 and rearwardly. Further, acolumn 96 and row 98 (Figure 5B) configuration ofslots 100, provided inhousing 70, open onfront surface 86 and also rearwardly. The columns of fourpassages 94 alternate with columns of twoslots 100 along the length ofhousing 70. - Each
passage 94 is isolated fromother passages 94 byinterior walls 102 and fromslots 100 bytransverse walls 104. As seen in Figure 5C,beam spreaders 106 project intorespective passages 94 from eachtransverse wall 104.Openings 108 ofpassages 94 are preferably funnel-shaped. The free ends 110 ofwalls 102 are beveled on one side as shown with the bevels extending rearwardly and towardsside 80. -
Slots 100 in eachrow 96 are separated bywall 112. Further,noses 114 project intorespective slots 100 frominside surfaces 116 ofrespective sides ledge 117 is provided on theinside surface 116 ofside 82. -
Housing 70 is preferably molded with the preferred material being a high temperature thermoplastic. -
Contacts second connector 14 are shown in Figures 6A,6B and 6C respectively. These contacts are preferably stamped and formed from beryllium copper. - Power contact 72 (Figures 6A) includes
flat plate 118 with the front end offront portion 120 slotted to providecantilever beam 124 and fingers 126,128 on respective sides thereof.Beam 124 includesconvex contact surface 130 at the free end thereof and further is bent out in one direction from the plane ofplate 118 adjacent the point of attachment thereto. It is then bent in the opposite direction so that the beam crosses the plane ofplate 118, placingconvex contact surface 30 on the other side ofplate 118.Notches side edge 136 ofplate 118 with the former being near the free end offinger 128.Tab 138 projects outwardly fromedge 136 at the junction between front and rear portions 120,122 respectively. -
Rear portion 122 is in the same plane as but is formed at an angle relative tofront portion 120 with the angle being about forty five degrees. Projecting outwardly from a corner ofrear portion 122 is lead 140 which is bent out of the plane ofplate 118 so as to be at right angles thereto and accordingly offset therefrom. - Ground contact 74 (Figure 6B) includes
flat plate 142 wherein the forwardfree end 144 is slotted to definecantilever beam 146 bracketed by fingers 148,150 on respective sides.Beam 146 includes aconvex contact surface 152 at the free end thereof, and as withbeam 124 oncontact 72, is bent to crossplate 142 from one surface to the other.Notch 154 is provided in outwardly facingside edge 156 ofplate 142 near the free end offinger 148. Further rearwardly, lead 158 projects outwardly fromedge 156 after being displaced out of the plane ofplate 142.Tab 162 projects outwardly fromopposite side edge 164 at the corner of therear edge 166 ofplate 142. As shown,rear edge 166 is at an angle relative to side edges 156,164. - The offsetting of
leads card 18; i.e. power and ground holes 18a,18b respectively are in line with signal holes 18c (Figure 1). - Signal contact 76 (Figure 6C) includes
receptacle 168 at one end, lead 170 at the opposite end, retainingsection 172 behindreceptacle 168 andstrap 174 which extends between and connects lead 170 tosection 172.Receptacle 168 is formed from opposingresilient beams 176. Retainingsection 172 includes an obliquely outwardly extendingresilient leg 178.Strap 174 is bent forty five degrees at two spaced-apart locations to position lead 170 at a ninety degree angle relative toreceptacle 168. - Figures 7A and 7B illustrate the positioning of
contacts housing 70 to formsecond connector 14. - Power contacts 72 (Figure 7A) are inserted, from
rear face 88, intoslots 100 which areadjacent side 82. Cantilever beams 124 are adjacentfront surface 86 and leads 140 project laterally fromhousing 70 on the same side asside 80. Retention is accomplished bynose 114 enteringnotch 132 andtab 138 engagingledge 117. - Ground contacts 74 (Figure 7A) are also inserted from
rear face 88 intoslots 100adjacent side 80.Cantilever beam 146 is adjacentfront surface 86 and lead 158 projects laterally fromhousing 70 betweenlead 140 oncontact 72 andside 80. Retention is provided bynose 114 enteringnotch 154 andtab 162 engaging the end ofwall 112. - Signal contacts 76 (Figure 7B) are inserted into
passages 94 fromrear face 88 withreceptacles 168 beingadjacent openings 108.Leads 170 project laterally fromhousing 70 on the same side asside 80. Retention is by an interference fit betweenpassages 94 and retainingsections 172.Straps 174 bear against beveled ends 110 ofwalls 102 except forcontacts 76 positioned in thepassage 94adjacent side 80. In this case,strap 174 is bent once ninety degrees and it rests on the free end ofside 80. - Leads 140,158 and 170 are adapted for insertion into holes 18a, 18b and 18c respectively of
card 18 and retained therein by soldering. - Figures 8A and 8B illustrate
connectors Connector 14 is placed intocavity 36 ofconnector 12 so thatcontacts contacts connector 12. More particularly, as shown in Figure 8A, cantilever beams 124 and 146 on power andground contacts blades 58 on power andground contacts blades 58. As shown in Figure 8B, pins 62 onsignal contacts 32 inconnector 12 enterreceptacles 168 onsignal contacts 76 inconnector 14. - Figures 9A-9D illustrate a modification to
first connector 12.Housing 180 of modifiedfirst connector 182 includesseparate columns 184 each with apower passage 186 andground passage 188.Column 184 alternate withcolumn 190 of foursignal passages 46 each. Channels 186a and 188a extend straight inwardly towards each other from respective passages 186,188. -
Power contact 192 andground contact 194 for use inhousing 180 are shown in Figure 9B. Each contact 192,194 includescompliant section 50, lead 52, retainingsection 54 andblade 58 with the latter component being offset from the first three by astraight strap 196. - Figure 9C shows
connector 182 with acolumn 190 ofsignal contacts 32 inpassages 46 and Figure 9D showsconnector 182 with acolumn 184 of onepower contact 192 and oneground contact 194. Retainingsections 54 are positioned inrespective passages straps 196 are positioned in respective channels 186a and 188a. These views show that pins 62 oncontacts 32 are in the same relation withblades 58 on respective contacts 192,194 as withfirst connector 12. Accordingly,first connectors second connector 14 without modification thereto. - Figures 10A,10B and 10C illustrate a modification to
first connector 182 and contacts 192,194. Channels 186a and 188a inhousing 198 offirst connector 200 continue inwardly and join each other to form asingle channel 202 which extends across the width ofcavity 36 and interconnects passages 186,188 as shown in Figures 10A. Contacts 192,194 are modified by being made as a single unit as shown in Figure 10B and indicated byreference numeral 204.Double score lines 206 are provided across the width ofstrap 208 intermediate the ends so thatcontact 204 may be separated into contacts 192,194 by breakingstrap 208 along score lines 206. - Figure 10C shows
contact 204 positioned in respective passages 186,188 andstrap 208 inchannel 202 inhousing 198 to formfirst connector 200. - Contact 204 permits the user to dedicate it to an all ground use, an all power use or to separate it into aforementioned contacts 192,194.
- As with
contact 204,contacts single contact 210 shown in Figures 11A,11B and 11C.Double score lines 212 are provided onplate 214 permitting the user the option of breakingcontact 210 into separate contacts. - Contact 210 includes another modification vis-
a-vis contacts plate 214. This contrast to leads 140,158 which are offset so as to engage holes 18a,18b in card 18 (Figure 1). The use of leads 216,218 require that holes 18a,18b be staggered (not shown) relative to signal holes 18c. Leads 216,218 can be formed off-settingplate 214 however if desired. - Figure 11B shows
contact 210 positioned insecond connector 14. The use ofcontact 210 insecond connector 14 does not require the modification thereof or of first connectors 12,182 and 200. - Figures 12A and 12B illustrate a modification to
contacts card 18. In all other respects, leads 220,222 are the same as leads 72,74. - Figures 13A and 13B illustrate
signal contacts second connector 14. -
Contacts 232 includereceptacle 236 at one end, lead 238 at the opposite end and retainingsection 240,strap 242 andcarrier strip 244 in between. -
Contacts 232 are stamped and formed from flat stock, and except forbeams 246 ofreceptacle 236, remains in a flat shape.Beams 246 are folded up out of the plane of the rest of thecontact 232, and converge atconvex surfaces 248 adjacent free ends 250. One advantage of formingcontacts 232 in this manner is thatconvex surfaces 248 can be accurately plated prior to being folded up. - Retaining
section 240 includesbarbs 252 which dig into thewalls defining passages 46 to retaincontacts 232 inhousing 70. -
Contacts 232 are positioned inhousing 70 so that the width ofleads 238 andstraps 242 are normal to the longitudinal axis ofsecond connector 14 such as shown with respect tocontacts 234 in Figure 14. This is opposite the positioning ofleads 170 andstraps 174 oncontacts 76 as shown in Figure 7B. - As is well known in the art,
contacts 232 are cut away fromcarrier strip 244 prior to being loaded intohousing 70. -
Contacts 234 shown in Figure 13B retain thereceptacles 168 and retainingsection 172 of contacts 76 (Figure 6C).Straps 254 and leads 256 retained in the same position as stamped, so that, as shown in Figure 14, the widths thereof are normal to the housing axis. - One advantage of contacts 232,234 is that the
straps - As shown in Figure 14, and as compared to
housing 70 shown in Figure 8B,housing 258 ofsecond connector 260 has been modified to acceptstraps housing 258 by reducing the length of sides 262,264,walls 266 and omitting a wall betweencolumns 90 andcolumns 96. Withfirst connector 12 providing a reference point, one can see that all of the aforementioned components, sides 262,264 andwalls 266, are much shorter than correspondingsides walls 102. Further, free ends 268 are rounded rather than being beveled. - Figure 15 shows yet another modification to either contact 72, 210 or 228. Contact 270 includes
ear 272 which is shown attached to edge 274 and bent normal toplate 276. Withcontact 270 positioned inhousing 258ear 272 extends between a pair ofadjacent straps Ear 272 may be place on opposite edge 278 (not shown) as well asedge 274 to isolate other pairs of straps 234,254. - Several embodiments of some of the
components comprising system 10 have been shown. Of these, the preferred first connector isconnector 200 in conjunction withcontacts 204. Should the user dedicate acontact 204 toground strap 208 provides a continuous shield across the width ofcavity 36. Secondly, and so noted above, the user has the option of keepingcontact 204 intact or separating it into two separate ones. -
Housing contacts 204, from the standpoint of staggering passages 186,188 relative to signalpassages 46 and from the standpoint of ease in moldingstraight channels 186a,188a, 202 as opposed to curved channels 42a,44a. In this regard, contacts 192,194 and 204 are easier to stamp and form thancontacts - Second connector 258 (Figure 14) is preferred from the molding viewpoint and
contacts 210 for the optional feature mentioned above. Leads 216,218, 220 and 222 are preferred because they do not need to be bent out of the plane of respective plates 214,224 and 226. -
Signal contacts 232 are slightly preferred overcontacts - In describing
first connector 12 andsecond connector 14,contacts longer blade 58 on aground contact 30, but not for an only use. - Components structures deemed equivalent to those disclosed herein would include leads 52,140,158,170,216,220,22,238,256 adapted to be surface soldered to circuit pads (not shown) on back planes and circuit cards; twin beams contacts in lieu of cantilever beams 124,146; box receptacles for twin beam receptacles 168,236; and leads 52, etc. extending outwardly from a surface of
dielectric housings 20,70,180,198 not otherwise illustrated herein. - In the several connector embodiments illustrated and described herein,
contacts connectors contacts signal contacts - Another modification which is intended to be included within the scope of the present invention relates to plates 118,142 of
respective contacts adjacent signal contacts adjacent columns - Figure 16 shows
electrical connector system 300 which includesfirst connector 12, described hereinabove, andsecond connector 314 which includes insulatinghousing 336, signalcontacts 338 andground contacts 340. As shown,housing 336 includessection 342 which fits intocavity 36 ofconnector 12. Shown aboveconnector 314 issubstrate 344 having plated throughholes 346.Substrate 344 is mounted ontoconnector 314 with signal contact leads 348 and ground contact leads 350 being received inappropriate holes 346. -
Passages 352 inhousing 336 which receivesignal contacts 338 are shown in Figure 17. In the illustrated embodiment, a column comprises fourpassages 352 extending betweensidewalls 354 ofhousing 336; i.e., a column is defined herein as extending across the width ofhousing 336 and a row is defined herein as extending longitudinally from end to end ofhousing 336. These definitions agree with industry usage. - Each
passage 352 includes a funnel shapedopening 356 providing access thereinto onfront surface 358 ofhousing 336. Further,passages 352 open out onrear surface 362 ofhousing 336 as indicated byreference numeral 364. -
Slots 366 inhousing 336 which receiveground contacts 340 are shown in Figure 18. There are twoslots 366 per column and they are isolated from adjacent columns ofsignal passages 352 bytransverse walls 368. Eachslot 366 opens out onfront surface 358 andrear surface 362 as indicated by reference numerals 370,372, respectively. Inwardly projectingnose 374 is provided onouter walls 376 ofslots 366.Further walls 376 slant outwardly towardssides 354 in the rearward direction as indicated byreference numeral 378. - As is well known in the industry,
housings 322 and 336 are molded from a suitable plastics material such as high temperature thermoplastic. - As shown in Figure 19,
signal contact 338 includes atwin beam receptacle 382, retainingsection 384, andaforementioned lead 348. Lead 348, which includes outwardly facingshoulders 386, is attached to and offset from connectingstrap 388 with the offset being indicated byreference numeral 390. -
Ground contacts 340, shown in Figure 20, include acantilever beam 392 extending forwardly inslot 394 cut into a relativelythin plate 396.Slot 394 definesresilient legs 340a on each side thereof.Notch 398 is provided inside 400 ofplate 396 adjacentfront end 402.Rearward side portion 404 ofside 400 slants obliquely laterally, terminating in theaforementioned lead 350. The twocontacts 340 shown in Figure 20 are identical with one being turned around. - Figure 21 shows signal
contacts 338 positioned inpassages 352 and Figure 22 shownground contacts 340 inslots 366 to formsecond connector 314. Retainingsections 384 frictionally holdscontacts 338 inpassages 352 withreceptacles 382 open toopenings 356.Leads 348 project rearwardly fromrear opening 364. As shown,contacts 338 in the pairs ofpassages 352 on each side ofmedian wall 406 ofhousing 336 are positioned therein in an opposite orientation.Leads 348 are on the same center line asreceptacles 382 by reason ofoffsets 390.Contacts 338 are loaded intopassages 352 fromrear opening 364 with the free ends ofreceptacles 382 abutting or nearshoulder 360. -
Ground contacts 340 are retained inslots 366 against pull-out by reason of inwardly projectingnoses 374 being received innotches 398.Slanted side portions 404 bear against slantedwall portion 378 ofwalls 376 to prevent forward movement ofcontacts 340. As is obvious,contacts 340 are loaded intoslots 366 fromrear openings 372 withlegs 340a ofplate 340 being resiliently cammed in to pass overnoses 374 during insertion.Leads 350 extend outwardly fromrear surface 362 on each side of the column of signal leads 348. - Figure 23 is a
view showing connectors parallel substrates substrates engaged signal contacts contacts 32 inconnector 12 are received intwin beam receptacles 382 ofcontacts 338 inconnector 314. - Figure 24 is a view similar to Figure 23 but showing
ground contacts parallel substrates contacts cantilever beams 392 slidingly engagingblades 58. - Reference has been made above to
contacts 340 being used as ground reference planes. However, if desired, one ormore contacts 340 can be used to transmit power. In this event,blade 58 on apower contact 28 is made shorter than ablade 58 on aground contact 30 so that the ground circuits are interconnected before the power circuits. As shown in Figure 24blade 58 on the left hand side is shorter relative to theblade 58 on the right hand side to illustrate this dual purpose ofcontacts - As can be discerned, a high density, high frequency connector system has been disclosed which provides enhanced signal integrity in high density connector systems comprising matable first and second connectors with the former mounted on a back plane and a circuit card mounted on the latter. Each connector includes a column and column configuration of contacts for carrying high frequency signals and alternating columns of contacts for providing a ground reference to maintain signal integrity. The ground contacts in one connector include blades extending outwardly. The ground contacts in the other connector includes blade-engaging cantilever beams in slots in plates of substantial width which cooperate to provide a blanket shield between adjacent columns of signal carrying contacts.
Claims (9)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25842488A | 1988-10-17 | 1988-10-17 | |
US258424 | 1988-10-17 | ||
US36792989A | 1989-06-19 | 1989-06-19 | |
US367929 | 1989-06-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0365179A1 true EP0365179A1 (en) | 1990-04-25 |
EP0365179B1 EP0365179B1 (en) | 1994-09-28 |
Family
ID=26946632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89310203A Expired - Lifetime EP0365179B1 (en) | 1988-10-17 | 1989-10-05 | Electrical connector system |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0365179B1 (en) |
JP (1) | JP2704179B2 (en) |
KR (1) | KR0152521B1 (en) |
CN (1) | CN1026838C (en) |
BR (1) | BR8905245A (en) |
CA (1) | CA1319739C (en) |
DE (1) | DE68918547T2 (en) |
ES (1) | ES2060786T3 (en) |
PT (1) | PT92009B (en) |
Cited By (17)
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EP0460975A1 (en) * | 1990-06-08 | 1991-12-11 | Connector Systems Technology N.V. | Connectors with ground structure |
EP0460976A1 (en) * | 1990-06-08 | 1991-12-11 | Connector Systems Technology N.V. | Connectors with ground structure |
US5141453A (en) * | 1990-06-08 | 1992-08-25 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5151036A (en) * | 1990-06-08 | 1992-09-29 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5228864A (en) * | 1990-06-08 | 1993-07-20 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5259772A (en) * | 1990-06-08 | 1993-11-09 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5261829A (en) * | 1990-06-08 | 1993-11-16 | Fusselman David F | Connectors with ground structure |
FR2707045A1 (en) * | 1993-04-05 | 1994-12-30 | Teradyne Inc | |
EP0645856A1 (en) * | 1993-09-24 | 1995-03-29 | Siemens Aktiengesellschaft | Method of making contact elements-groups for a connecting device |
WO1995033290A1 (en) * | 1994-05-31 | 1995-12-07 | The Whitaker Corporation | Electric connector and electrical contacts used therein |
WO1996019850A1 (en) * | 1994-12-22 | 1996-06-27 | Siemens Aktiengesellschaft | Electrical connector with shielding |
EP0724313A2 (en) * | 1995-01-30 | 1996-07-31 | Molex Incorporated | Printed circuit board mounted electrical connector |
US5605476A (en) * | 1993-04-05 | 1997-02-25 | Teradyne, Inc. | Shielded electrical connector |
EP0881718A2 (en) * | 1997-05-30 | 1998-12-02 | Fujitsu Takamisawa Component Limited | High density connector |
EP0905825A2 (en) * | 1997-09-30 | 1999-03-31 | Siemens Aktiengesellschaft | Electrical connector |
US6247970B1 (en) | 1998-08-24 | 2001-06-19 | Fujitsu Takamisawa Component Limited | Plug connector, jack connector and connector assembly |
DE4433522B4 (en) * | 1993-10-20 | 2007-05-16 | Minnesota Mining & Mfg | Connector for high-speed transmission line |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2896868B2 (en) * | 1995-05-23 | 1999-05-31 | 日本航空電子工業株式会社 | High-speed transmission connector |
JP3491064B2 (en) | 2000-10-20 | 2004-01-26 | 日本航空電子工業株式会社 | High-speed transmission connector |
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EP0107288A1 (en) * | 1982-09-07 | 1984-05-02 | AMP INCORPORATED (a New Jersey corporation) | Electrical connector assembly for terminating flat shielded electrical cable |
US4571014A (en) * | 1984-05-02 | 1986-02-18 | At&T Bell Laboratories | High frequency modular connector |
EP0212764A2 (en) * | 1985-08-05 | 1987-03-04 | Criton Technologies partn. comp. of Criton Corp. B.S.B. Diversified Co., Inc., Royal Zenith Corp, d/b/a Viking Connectors Co. | High density, controlled impedance connector |
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JPS524580Y2 (en) * | 1972-04-18 | 1977-01-31 | ||
US4975084A (en) | 1988-10-17 | 1990-12-04 | Amp Incorporated | Electrical connector system |
-
1989
- 1989-09-21 CA CA000612271A patent/CA1319739C/en not_active Expired - Fee Related
- 1989-10-05 EP EP89310203A patent/EP0365179B1/en not_active Expired - Lifetime
- 1989-10-05 DE DE68918547T patent/DE68918547T2/en not_active Expired - Lifetime
- 1989-10-05 ES ES89310203T patent/ES2060786T3/en not_active Expired - Lifetime
- 1989-10-16 JP JP1266407A patent/JP2704179B2/en not_active Expired - Lifetime
- 1989-10-16 KR KR1019890014816A patent/KR0152521B1/en not_active IP Right Cessation
- 1989-10-16 BR BR898905245A patent/BR8905245A/en not_active IP Right Cessation
- 1989-10-16 CN CN89108038A patent/CN1026838C/en not_active Expired - Fee Related
- 1989-10-16 PT PT92009A patent/PT92009B/en not_active IP Right Cessation
Patent Citations (3)
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EP0107288A1 (en) * | 1982-09-07 | 1984-05-02 | AMP INCORPORATED (a New Jersey corporation) | Electrical connector assembly for terminating flat shielded electrical cable |
US4571014A (en) * | 1984-05-02 | 1986-02-18 | At&T Bell Laboratories | High frequency modular connector |
EP0212764A2 (en) * | 1985-08-05 | 1987-03-04 | Criton Technologies partn. comp. of Criton Corp. B.S.B. Diversified Co., Inc., Royal Zenith Corp, d/b/a Viking Connectors Co. | High density, controlled impedance connector |
Non-Patent Citations (1)
Title |
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ELECTRONIC ENGINEERING. vol. 60, no. 736, April 1988, Woolwich,LONDON GB Turner,P. and Black,G.: "The demands of logic and power on backplanes" * |
Cited By (29)
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US5261829A (en) * | 1990-06-08 | 1993-11-16 | Fusselman David F | Connectors with ground structure |
US5141453A (en) * | 1990-06-08 | 1992-08-25 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5151036A (en) * | 1990-06-08 | 1992-09-29 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5228864A (en) * | 1990-06-08 | 1993-07-20 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
US5259772A (en) * | 1990-06-08 | 1993-11-09 | E. I. Du Pont De Nemours And Company | Connectors with ground structure |
EP0460976A1 (en) * | 1990-06-08 | 1991-12-11 | Connector Systems Technology N.V. | Connectors with ground structure |
EP0460975A1 (en) * | 1990-06-08 | 1991-12-11 | Connector Systems Technology N.V. | Connectors with ground structure |
US5605476A (en) * | 1993-04-05 | 1997-02-25 | Teradyne, Inc. | Shielded electrical connector |
FR2707045A1 (en) * | 1993-04-05 | 1994-12-30 | Teradyne Inc | |
US5607326A (en) * | 1993-04-05 | 1997-03-04 | Teradyne, Inc. | Shielded electrical connector |
EP0645856A1 (en) * | 1993-09-24 | 1995-03-29 | Siemens Aktiengesellschaft | Method of making contact elements-groups for a connecting device |
DE4433522B4 (en) * | 1993-10-20 | 2007-05-16 | Minnesota Mining & Mfg | Connector for high-speed transmission line |
WO1995033290A1 (en) * | 1994-05-31 | 1995-12-07 | The Whitaker Corporation | Electric connector and electrical contacts used therein |
WO1996019850A1 (en) * | 1994-12-22 | 1996-06-27 | Siemens Aktiengesellschaft | Electrical connector with shielding |
US5904594A (en) * | 1994-12-22 | 1999-05-18 | Siemens Aktiengesellschaft | Electrical connector with shielding |
EP0724313A3 (en) * | 1995-01-30 | 1997-07-30 | Molex Inc | Printed circuit board mounted electrical connector |
EP0724313A2 (en) * | 1995-01-30 | 1996-07-31 | Molex Incorporated | Printed circuit board mounted electrical connector |
US6533614B1 (en) | 1997-05-30 | 2003-03-18 | Fujitsu Takamisawa Component Limited | High density connector for balanced transmission lines |
EP0881718A2 (en) * | 1997-05-30 | 1998-12-02 | Fujitsu Takamisawa Component Limited | High density connector |
EP0881718A3 (en) * | 1997-05-30 | 1999-08-11 | Fujitsu Takamisawa Component Limited | High density connector |
EP2290761A1 (en) * | 1997-05-30 | 2011-03-02 | Fujitsu Component Limited | High density connector |
EP2273628A1 (en) * | 1997-05-30 | 2011-01-12 | Fujitsu Component Limited | High density connector |
US6805586B2 (en) | 1997-05-30 | 2004-10-19 | Fujitsu Takamisawa Component Limited | High density connector for balanced transmission lines |
US6439928B1 (en) | 1997-05-30 | 2002-08-27 | Fujitsu Takamisawa Component Limited | High density connector for balanced transmission lines |
EP0905825A3 (en) * | 1997-09-30 | 1999-12-15 | Siemens Aktiengesellschaft | Electrical connector |
US6093031A (en) * | 1997-09-30 | 2000-07-25 | Siemens Aktiengesellschaft | Electrical connector having different interface matrices |
EP0905825A2 (en) * | 1997-09-30 | 1999-03-31 | Siemens Aktiengesellschaft | Electrical connector |
US6368121B1 (en) | 1998-08-24 | 2002-04-09 | Fujitsu Takamisawa Component Limited | Plug connector, jack connector and connector assembly |
US6247970B1 (en) | 1998-08-24 | 2001-06-19 | Fujitsu Takamisawa Component Limited | Plug connector, jack connector and connector assembly |
Also Published As
Publication number | Publication date |
---|---|
ES2060786T3 (en) | 1994-12-01 |
CN1026838C (en) | 1994-11-30 |
PT92009A (en) | 1990-04-30 |
CN1042030A (en) | 1990-05-09 |
DE68918547D1 (en) | 1994-11-03 |
CA1319739C (en) | 1993-06-29 |
BR8905245A (en) | 1990-05-15 |
KR0152521B1 (en) | 1998-10-15 |
DE68918547T2 (en) | 1995-05-11 |
PT92009B (en) | 1996-05-31 |
JPH02256184A (en) | 1990-10-16 |
JP2704179B2 (en) | 1998-01-26 |
KR900007134A (en) | 1990-05-09 |
EP0365179B1 (en) | 1994-09-28 |
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