WO2003047050A1 - Flexural connector cover assembly mounting apparatus - Google Patents
Flexural connector cover assembly mounting apparatus Download PDFInfo
- Publication number
- WO2003047050A1 WO2003047050A1 PCT/US2002/038273 US0238273W WO03047050A1 WO 2003047050 A1 WO2003047050 A1 WO 2003047050A1 US 0238273 W US0238273 W US 0238273W WO 03047050 A1 WO03047050 A1 WO 03047050A1
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- WIPO (PCT)
- Prior art keywords
- terminal
- connector
- cover member
- terminals
- cover
- Prior art date
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Classifications
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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
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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
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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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
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
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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
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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
- H01R13/46—Bases; Cases
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
- H01R13/518—Means for holding or embracing insulating body, e.g. casing, hoods for holding or embracing several coupling parts, e.g. frames
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
- H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
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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
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
- H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
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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
- H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
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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
- H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
- H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle
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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
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
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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
- H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
- H01R13/6587—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules for mounting on PCBs
Definitions
- Another object of the present invention is to provide a high-density connector that has a plurality of conductive terminals supported on an insulative housing and wherein the terminals are separated into distinct sets of signal and ground terminals, the ground terminals including double thickness, flat contact blades that project forwardly of the connector body and the signal terminals having contact portion with general L-shapes, the signal terminal being arranged on opposite sides of the ground blades in a cruciform pattern.
- the receptacle connector includes a plurality of subassemblies, or "tri-wafers,” which are assembled together from three different parts and which include two single-ended signal terminal sets flanking a ground terminal set.
- the terminals sets are supported on dielectric housings and have tail portions extending from one side of the housing which mate with a circuit board, contact portions that extend from another side of the housing for mating with terminals of an opposing connector and body portions interconnecting the contact and tail portions together and which are supported by the housings. Flexural portions are formed in the terminals and are interposed between the terminal contact and body portions.
- the flexural portions are located outside of the connector housings as are the terminal contact portions, and they include a center portion of approximately the same width as the terminal body portions, but flanked by two thin neck portions, or flex arms that deflect when needed, while the thicker center portion provides strength and electrical performance to the terminal flexural portions.
- the terminals may further be aligned together by elongated, vertical support members, preferably molded in place thereon of a dielectric material. These support members preferably take the form of elongated bars that maintain each set or array of terminals supported by a wafer in a fixed spacing and alignment.
- the support bars fix the terminal contact portions at a pont spaced from a common face of the wafer.
- the support bars at this point are fixed to a moveable housing, preferably taking the form of a shroud member that thus both the terminal mating portions and the shroud will move as a single unit with respect to the common face of the supporting wafer.
- each connector terminal assembly includes a grounding shield which may be held in a plastic or dielectric frame and in which a plurality of tabs may be stamped. These tabs extend sideways from. the plane of the shield and are intended to contact distinct ground terminals that are disposed in the signal terminal sets.
- the signal terminal sets may be stamped and formed from a conductive material and preferably have an exterior insulative frame, or housing, molded over the body portions thereof. Cavities are preferably formed in the frames into which the grounding shield tabs project to contact their associated grounding terminals of the adjoining signal terminal sets or arrays.
- the signal and ground terminal assemblies and frames are assembled together to form "tri-wafers". These distinct tri-wafers may be separately removed from the entire connector in order to facilitate the removal and replacement thereof.
- Each such signal and/or ground terminal assembly is supported on a single wafer in one embodiment of the invention and are held together as a unit to form the aforementioned tri-wafer.
- the center wafer of each such tri-wafer supports a ground terminal assembly and the ground tabs formed therein make contact with terminals of the signal terminal sets that are intended to carry ground signals in the adjoining signal terminal assemblies in a pattern so that each signal terminal in the array of signal terminals will have a ground terminal flanking it in both horizontal and vertical directions.
- a cover assembly that partially encloses the receptacle connector contact portions.
- This cover assembly includes a clamp member that engages the tri-wafers as a single block, and which forms a support for a shroud member of the cover assembly.
- the shroud member is provided to form a housing around the receptacle connector terminal mating portions and includes an inner shoulder against which the terminal flexural portion supports, or support bars, abut in contact.
- One or more keys, or clips may also be provided which extend through the shroud in order to press the terminal support bars against the inner shoulders of the shroud. These keys engage the shroud and press against the support bars in a manner to maintain them in contact with an interior shoulder formed in the shroud.
- the keys preferably have a plurality of fingers or arms that press on the terminal supports, with one finger pressing on the end of a single terminal support bar. Two such keys are utilized to hold the support bars and their accompanying terminals in a fixed position within the shroud and spaced apart from the connector wafer blocks. These keys hold the support bars firmly in place.
- the shroud may have lead-in surfaces or portions formed therewith that direct either an opposing connector unto the connector or directs the shroud over the mating end of the opposing connector. In this manner, the shroud is permitted to float in its mounting on the clamp member and move as one piece with the terminal flexural portions.
- the shroud member is slotted in order to align the terminal assemblies of the receptacle connector and in order to space them apart a desired spacing.
- These slots include cavities which receive engagement keys. The keys extend into the cavities and into the slots to bear against and exert a retention pressure on the terminal assembly support bars.
- the connector assemblies include a pair of mating connectors and each connector includes a housing that receives and holds together a plurality of individual connector components, preferably in the form of an assembly of wafers.
- Each wafer may include first and second sets of signal terminals and first and second sets of ground terminals.
- the signal and ground terminals all include conductive contact portions, tail portions and body portions that interconnect the contact and tail portions together, and the first and second sets of signal terminals being at least partially enclosed by an insulative covering. These two insulative coverings and the first and second sets of ground terminals cooperatively form a single terminal assembly wafer, with all of the terminal assembly wafers in the receptacle connector being of the same type.
- the first and second sets of signal and ground terminals have flat blade portions that are arranged within each connector component so that the first and second sets of ground terminals preferably abut each other and extend in a vertical line down the center of the wafer.
- the first and second sets of signal terminals lie on opposite sides of, or "flank", the first and second sets of ground terminals and the insulative coverings of the first and second signal terminal sets prevent unintended shorting from occurring between the signal and ground terminals.
- the first and second sets of signal terminals are further arranged so that one pair of first signal terminals and one pair of second signal terminals are disposed on opposite sides of one of the contact portions of the first and second sets of ground terminals.
- the L-shaped signal terminal contact portions extend in directions that are both parallel and perpendicular to the ground terminal flat blade portions and the first and second signal terminal pairs form a cruciform pattern around their associated ground blade when viewed from a contact end thereof.
- the signal terminal contact portions in this pattern are preferably spaced closer to their associated ground contact blades than they are to the signal terminal contact portion of signal terminals of an adjacent terminal assembly, thereby encouraging signal to ground coupling and discouraging signal to signal coupling from occurring during operation of the connector.
- the terminal assemblies are spaced apart from each other and are maintained in such a spacing by both a retainer and the shroud in order to encourage signal to ground capacitive coupling and discourage signal to signal capacitive coupling of adjacent terminal assemblies.
- FIG. 5 is a side elevational view of the plug connector of FIG. 4;
- FIG. 6 is an exploded perspective view of the receptacle connector of FIG. 2;
- FIG. 7 is a perspective view of a signal terminal wafer used in the receptacle connector of FIG. 6;
- FIG. 8 is a perspective view of the signal terminal wafer of FIG. 7 assembled to a ground terminal wafer;
- FIG. 12 is a view similar to FIG. 11, but illustrating the mating portion fully flexed in the downward extent of the "Y" direction;
- FIG. 15 is the same view as FIG. 14, but illustrating the full flexure of the connector in the opposite (rightward) direction;
- FIG. 16 is a perspective view of an alternate embodiment of a receptacle connector constructed in accordance principles of the present invention and which incorporates power terminals;
- FIG. 17 is a perspective view of an alternate embodiment of a plug connector that mates with the receptacle connector of FIG. 16;
- FIG. 18 is a perspective view of a power terminal set lead frame used in the receptacle connector of FIG. 15.
- FIG.20 is a perspective view of the power signal/ground terminal set lead frame used in the plug connector of FIG. 17; and FIG. 21 is a perspective view of the lead frame of FIG. 20 assembled into a plug connector tri-wafer;
- FIG. 22 is a side elevational detail view of the manner of engagement between the grounding shield contact portions of the plug and receptacle connectors of the connector assembly of FIG. 1;
- FIG. 23 is an enlarged detail perspective view illustrating the manner of engagement between the grounding shield contact portions of the plug and receptacle connectors of the connector assembly of FIG. 1;
- FIG. 23 A is a schematic view of the contact area of FIG. 23, with the two connectors joined together;
- FIG. 24 is a perspective view of a pair of opposing connector wafers constructed in accordance with the principles of an alternate embodiment of the present invention and shown mated together;
- FIG. 24 A is an enlarged detail view of the mating which occurs between the two connector wafers of FIG. 24;
- FIG. 25 is a perspective view of the rightmost wafer assembly of FIG. 24;
- FIG. 26 is a top plan view of the wafer assembly of FIG. 25;
- FIG. 27 is a top plan view of the leftmost wafer assembly of FIG. 24;
- FIG. 28 is an enlarged detail view of the signal and ground terminal contact portions of the wafer assembly of FIG. 25, with its associated support bar removed for clarity;
- FIG. 29 is a bottom plan view of the wafer assembly of FIG. 26;
- FIG. 30 is an enlarged detail view of the front, or contact, end of the wafer assembly of FIG. 29, taken along lines 30-30 thereof;
- FIG. 31 is a front elevational view of the wafer assembly of FIG. 26;
- FIG. 32 is an enlarged detail view of a portion of FIG. 31 ;
- FIG. 33 is an enlarged detail view of the wafer assembly of FIG. 25, illustrating the sandwich-style layered structure thereof;
- FIG. 34 is a front elevational view of the wafer assembly of FIG. 27;
- FIG. 35 is an enlarged detail view of the top portion of FIG. 34;
- FIG. 36 is bottom plan view of the wafer assembly of FIG. 34;
- FIG. 37 is an enlarged detail view of the front end of FIG. 36;
- FIG. 38 is an enlarged detail view (in perspective) of the wafer assembly of FIG. 27;
- FIG. 39 is a perspective view illustrating the terminal assemblies of FIG. 27 engaged together in an orthogonal connection with one of the terminal assemblies having an alternate flexing portion construction;
- FIG. 39A is an enlarged perspective view of the contact and flexing portions of the flexing terminal assembly of FIG. 39;
- FIG. 40 is a perspective view of an alternate embodiment of the receptacle connector of the invention illustrating an alternate floating shroud construction
- FIG. 41 is an exploded view of another terminal assembly used in receptacle connectors of the invention, but with the internal ground members assembled to each side of the terminal assembly halves and with the tail portions of the signal terminals and ground members removed for clarity;
- FIG. 42 is an exploded perspective view of the left, or upper terminal assembly half of FIG. 43 illustrating the assembly half, spacer element and ground member;
- FIG. 43 is a perspective view of the leftmost signal terminal assembly half of FIG. 42, with the spacer element and ground member removed for clarity
- FIG. 44 is the same view as FIG. 43, but with the spacer element added;
- FIG. 45 is an exploded perspective view of an alternate embodiment of a receptacle connector constructed in accordance with the principles of the present invention.
- FIG. 47 is a sectional view of the shroud member of FIG. 46, taken along lines 47-47 thereof;
- FIG. 48 is a sectional view of the shroud member of FIG. 46 taken along lines 48-48 thereof;
- FIG. 49 is an enlarged detail view of a portion of FIG. 47, illustrating the spring key in place within the shroud member;
- FIG. 50 is a perspective view of the embodiment of FIG. 45, with the shroud removed for clarity and illustrating the arrangement of terminal assemblies within the retainer;
- FIG. 52 is a top plan view of FIG. 45;
- FIG. 53 is a perspective view of the connector alignmetn bar of FIG. 45;
- FIG. 54 is an enlarged perspective detail view of the engagement which occurs between the alignment bar and a terminal assembly
- FIG. 55 is a front elevational view of FIG. 50 taken along lines 55-55 thereof, illustrating one of the terminal assemblies thereof in engagement with the alignment bar;
- FIG. 1 illustrates a connector assembly 50 constructed in accordance with the principles of the present invention which is primarily useful in connecting two circuit boards 51, 52 together.
- the circuit boards 51, 52 are oriented in an orthogonal orientation and it will be understood that only a portion of the circuit boards 51, 52 are shown for clarity.
- the horizontal circuit board 52 may have a greater extent in the horizontal plane (into and out of the paper as shown) and may include a plurality of connector assemblies 50 so as to mate with a plurality of vertical circuit boards 51.
- the plug connector 100 is termed the plug connector because it is received within the receptacle connector 200.
- FIGS. 2-3B illustrate the receptacle connector 200.
- This connector 200 can be seen to have a body portion 201, a mounting portion 202 that mounts to the circuit board 52 and a mating portion 203 that extends out from the body portion 201 to mate with a like mating portion of the plug connector 100.
- the mating portion 203 of the connector 200 can move a preselected distance in any one of four directions with in two distinct horizontal and vertical planes, shown in FIG. 2 at the left and the "Y" direction for upward movement, "-Y” direction for downward movement, "X" for leftward movement and "-X” for rightward movement. The extent of this flexure is shown in detail in FIGS. 11-15.
- the plug connector 100 (FIG. 4) is preferably constructed so it is fixed with respect to the circuit board 51, and it includes a cover portion 108 that is received within the opening of the shroud of the receptacle connector 200.
- the plug connector 100 is formed from a series of components 101 that are referred to herein as "wafers" because of their relatively thin configuration. These wafers 101 are assembled into a stack, or block 102 of wafers, which are maintained together as a unit by an aligner, or retainer 103, that engages a series of recesses 104 formed in the rear face 105 of the connector block 102.
- the wafers of the connectors of the invention are preferably assembled together in groups of three in order to effect single-ended signal transmission and in the order of S-G-S (signal-ground-signal) which means that a ground wafer or member is provided between every two signal wafers.
- S-G-S signal-ground-signal
- the wafers when assembled in their tri-wafer fashion (as illustrated in FIGS. 6, 9, 10 and 21) they may be removed and replaced as a tri-wafer, or a single terminal assembly, which facilitates the maintenance and repair aspects of connectors of the present invention.
- the signal terminal wafer 210 supports a terminal set 211 that is termed herein as "signal" terminal set in that it includes terminals that are intended to carry electrical signals and ground reference signals, but it does not include a structure that is intended to act entirely as a ground, such as a grounding shield.
- the terminals 211 may be stamped and formed into a lead frame and then a housing portion 215 preferably of an insulative and/or dielectric material, is formed about them such as by insert molding, overmolding or other suitable technique.
- Each terminal has a tail portion 213 for mounting to a circuit board 52 and a contact portion 214 that also projects from one edge, or face 218, of the housing (or wafer) 215 for mating with an opposing contact of the plug connector 100.
- the tail portions 213 also project along another edge, or face, 600 of the housing 215.
- this flexing portion 219 includes a central body 222 that has a thickness and width that approximates that of the terminal body portion 211.
- This body 222 is flanked by two thin necks, or flex arms 223, that have a vertical width (or thickness) less than that of the terminal contact, center body or body portions (214, 222, 216). This reduction in size increases the resiliency of the flexing portion 219, while the thicker body portion
- the flexing portions 222 provides strength and also affects the electrical characteristics of the terminals through the flexing portions. It increase capacitive coupling between the signal and ground terminal flexing portions which will result in a decrease in impedance in this area of the connector. It also increases electrical isolation of the signal terminals on opposing sides of the arrays of ground terminals. The sizes of the bodies of the flexing portions may then be dimensioned so as to achieve a desired impedance level within this portion of the connector.
- FIGS. 39 and 39A illustrate two opposing terminal assemblies, and in which one of the assemblies 900, has an alternate flexing portion construction.
- the terminal assembly 900 has a plurality of conductive signal terminals 902, 904 and ground terminals 905 supported by an insulative housing 901.
- the ground terminals 905 are formed by adjoining ground members which are flanked by signal terminals 902 and 904.
- the terminals have distinct flexing portions 906, 907 that are separated from the contact portions by an elongated support bar 910 that extends over the terminals. Whereas the majority of the flexing portions 906 are straight and linear, the bottom two flexing portions 907 are shown as arcuate in shape. This is to substantially reduce undesired levels of tension or compression forming in the flexing portions, particularly the lowermost flexing portions, during movement of the connector.
- a terminal support member 225 may be molded onto and over part of the terminal contact portions 214 and its purpose will be explained in greater detail below.
- the terms "mating portions” or “mating regions” refer to the terminal portions that project forward from the front face 218 of the connector wafers, or housings 210, 220. Both the contact and flexing portions of the terminals lie in this mating region, or portion.
- the ground wafer 220 (FIG. 8) is constructed in a similar fashion and preferably includes a grounding member 230 that is held or supported by a dielectric or plastic frame 238. As shown in this embodiment, the ground member has contact portions 232, but no tail portions. It relies upon its grounding tabs 237 making contact with designated ground terminals in the signal terminal array that have their own tail portions for connection to the circuit board.
- This ground member 230 includes a flat plate or body portion 231 which has terminal contact portions 232 projecting forwardly therefrom. These terminal contact portions 232 are connected to the plate body 231 by intervening flexing portions 233 similar in construction to the signal terminal set flexing portions 219 (FIG. 7), and also include a thick central body 234 that is flanked by two thinner flex arms 235. A vertical support bar 236 may also be provided to hold the ground member contact portions 232 in place in the mating region.
- the grounding plate 231 is punched, or stamped, to form a plurality of ground tabs 237 that project out from the plate 231.
- These tabs 237 are preferably located in alignment with specific terminals of the signal terminal set that are designated for carrying ground reference signals, and they project on opposite sides of the grounding plate 231, and as best seen in FIGS. 9 & 10, these grounding tabs extend out from the plane in which the grounding plate 231extends.
- the tabs that project to the left of the plate in FIGS. 8 and 9 are designated 237a, while the tabs that project to the right of the plate are designated in these figures as 237b. As shown in FIG.
- the ground terminal set is held in a plastic frame 238 that extends around the perimeter of the plate 231.
- the frame 215 of the signal wafer is perforated, having openings 240 formed therein. These openings 240 are registered with the terminal body portions 216 so that portions thereof 216a are exposed in the openings 240.
- the grounding tabs 237 of the grounding plate 231 will extend into these openings 240 and contact the exposed terminal body portions 216a. As shown in the drawings, these grounding tabs are arranged in a pattern so that they follow the extent of the ground reference terminals in the signal terminal sets through the insulative housings that support the terminal sets. In this manner, the center grounding plate 231 of each tri-wafer acts as an interstitial ground that is
- each terminal assembly may then be easily arranged in horizontal row patterns of S-G-S (in rows of "true” signal terminals), and in horizontal row patterns of G-G-G (in rows where the signal terminals are ground reference terminals).
- FIG. 10 illustrates a tri-wafer terminal assembly 120 of a different construction which are used in the plug connector 100.
- the ground shield 122 is interposed between the two signal terminal sets 121 and may include compliant pins 123 and slotted tabs 124 as respective tail and contact portions.
- the ground shield 122 is held in its own dielectric frame 130 that has a central opening 131 through which its grounding tabs 132 project into contact with designated terminals of the signal terminal sets 121 through openings 135 formed in the dielectric wafers 136 that are molded onto the lead frames of the signal terminal sets 121.
- the contact portions 129 of the signal terminal sets 121 shown in FIG. 10 are female terminals that receive the pin-style contact portions 214 of the receptacle connector terminals.
- the grounding shield contact portions 124 receive the thick blade contacts of the grounding shield 230 in the slots 177 formed between their contact arms.
- the receptacle connector also preferably includes a cover assembly 250, part of which moves with the terminal contact portions as a unit.
- This cover assembly 250 includes a clamp member 251, shroud 252 and key(s) 253.
- the clamp member 251 may have an inverted U-shape as shown and is affixed to the block of connector wafers. It does not move, and it assists the wafer aligner 103 in maintaining the connector block as a unit.
- the clamp member 251 may include legs
- the shroud 252 has a hollow square shape as illustrated in FIG. 6 and it has recesses 259 that are complementary to the clamp member legs 256, with two such recesses being illustrated. It also preferably contains an inner shoulder, or ridge 258 that projects radially inwardly and which is provided to bear against the support bars 225, 236 of the tri-wafers. These support bars 225, 236 are held in contact with the inner shoulder 258 by the cover assembly keys 253 by way of press legs 259 that extend through openings 261 formed in the shroud 252. These press legs 259 are curved so that the keys 253 may be rotated into place.
- the keys 253 also include retaining clips, or latches 260 that are received in and engage a second set of openings 262 in the shroud 252. In this manner, the support bars 225, 236 are held against the shroud 252 so that the terminal and grounding contact and flex portions and the shroud 252 may move together up/down, right/left and in other directions, and preferably as a single unit.
- This flexing movement is effected by fixing the shroud 252 and the terminal mating portions at the support bars 225 together as a unit.
- the shroud 252 is not attached to the connector block 201 and is free to move, but the engagement of the support bars 225 with the shroud 252 defines a floating point for the terminals, while the connector housings 210, 220, particularly along the front faces 218 thereof, defines a fixed point.
- the shroud 252 is fixed to the terminals at the support bars 225, the support bars 225 are able to move relative to the front face 218 of the connector block 201.
- the flexing sections of the terminals emulate a four-point mechanical linkage with the four points shown as Bl, B2, B3 and B4. This arrangement permits desired movement of the contact portions
- FIGS. 11 and 12 illustrate the flexure of the contact portions of the receptacle in the up or "+Y” direction (FIG. 11) and the downward or "-Y” direction.
- FIG. 13 illustrates the clearance that is effected between the shroud 252 and the circuit board
- the receptacle connector 200 includes an angled surface 290 that preferably extends around the inner perimeter of the face 291 of the shroud 252.
- This angled surface 290 acts as a lead-in surface and serves to assist in directing the front face 292 of the opposing plug connector (FIG. 4) by way of a complementary angled surface 293 into the interior opening of the shroud 252
- FIG. 40 illustrates another means of orienting the plug and receptacle connectors together.
- the receptacle connector 651 includes a hollow retainer 652 that holds the terminal assemblies in place together as a unit 653.
- FIGS. 41-44 An alternate spacer construction is shown in FIGS. 41-44.
- This spacer 720 is also planar in configuration and has an extent such that it extends between the top and bottom of the terminal flexing portions. In this manner, the spacer 720 prevents inadvertent shorting between the terminal arrays and it also affects the electrical affinity that the flexing portions of the signal terminal arrays have for the flexing portions of the ground member, and this permits the impedance of the connector to be "tuned' in the flexing portion area.
- the spacer 720 is provided with engagement tabs 726 that are preferably received within recesses 728 formed in the support bar portions 708a, 708b.
- the engagement tabs 726 may include openings 729 that fit over posts 730 formed on the support bar halves 708a, 708b. When the two support bar halves 708a, 708b are assembled together, they hold the spacer element 720 in place between the signal and ground terminal flexing portions.
- FIGS. 16 and 17 illustrate alternate embodiments of the invention which incorporate power terminals into the connectors.
- a receptacle connector 300 is shown in FIG. 16 and it can be seen to have many of the same structural components as the receptacle connector 200 previously described, such as the retainer 103, cover assembly 250, including a shroud 252, clamp member 251 and retaining keys 253. It also includes a plurality of connector wafers that are assembled together as tri-wafers in groups of three, and importantly, it includes a plurality of power terminals 410 (FIG. 18) that are formed as part of an overall power terminal set 411 that are supported by an insulative housing 423. (FIG. 19.).
- Each of the power terminals 410 includes a mounting portion 415, a body portion 416 , a contact portion 417 and a flexing portion 418 disposed intermediate the terminal body and contact portions 416, 417.
- the flexing portions 418 include the aforementioned center body 419 which is flanked by two, thin flex arms 420.
- the power terminal flex portions 419 are interconnected together by a vertical lead 421 during manufacture, and that is stamped and formed with the terminals as illustrated in FIG. 18, but then removed from the terminal lead frame punching.
- FIG. 23 a receptacle connector terminal assembly is shown oriented horizontally, rather than vertically as shown in previous figures, and the plug connector terminal assembly 136 is shown oriented vertically, and the free ends of the terminal contact portions 214 have been removed for clarity.
- the ground member contact blades 230 are received within slots 190 located between pairs of contact arms 191. In this manner, the grounds of both connectors intersect each other in a crosswise manner and extend vertically between arrays of signal terminals and further extend horizontally between rows of terminals. This is illustrated schematically in
- FIG. 33 illustrates, in detail, the sandwiched, or layered, construction of the flexible connector assembly 501.
- the first and second ground terminal sets 510, 511 have contact portions that preferably take the form of flat contact blades 518 that abut each other to form the common ground 520, but they diverge away from each other in the area of the flexing portions 531 (FIG. 30) located rearwardly of the terminal support bar 532 as shown in FIG. 30.
- the first and second signal terminal sets 512, 513 are partially housed or enclosed within insulative bodies 540, 541 (FIGS. 29 & 30) that support, and at least partially envelop body portions of the terminals.
- the tail portions 535 of the terminals project from one side of these insulative bodies 540, 541 while the contact portions project from another, and preferably adjacent side thereof.
- the insulative bodies 540, 541 that house the first and second sets of signal terminals 512, 513 are assembled over and on opposite sides of the first and second ground terminal sets to form the wafer-like fixed connector assembly 501. Additional insulative spacer elements 544, 545 (FIG.
- the contact arms 572, 573 are arranged as shown in an L-type orientation and spaced apart from the double ground 521.
- FIG. 24C taken along lines C-C of FIG. 24 A
- the two common grounds 520, 521 of the fixed and flexing terminal assemblies intersect to form a cross, with the signal terminals of the two connector assemblies arranged as shown.
- FIG. 24D taken along lines D-D of FIG.24 A, the flexing portions are arranged in equal spacings and alignment on opposite sides of the common ground 521 of the fixed terminal assembly. In this manner, the signal terminals are maintained at a desired spacing from the ground to encourage coupling between the signal terminals and the ground.
- the catches 781 are partially received within the terminal assembly slots 779 and extend through the intervening spacing.
- the slots 779 do not extend completely through the engagement lugs 778, but, as shown in FIG. 55, they preferably include a central wall 787 dividing them into two half-slots.
- the central walls 787 of the slots 779 are received in the intervening spaces 782 formed in the alignment bar 780.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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DE60206758T DE60206758D1 (en) | 2001-11-28 | 2002-11-29 | ARRANGEMENT FOR ASSEMBLING A FLEXIBLE CONNECTOR FRAME |
AU2002359540A AU2002359540A1 (en) | 2001-11-28 | 2002-11-29 | Flexural connector cover assembly mounting apparatus |
JP2003548361A JP3930857B2 (en) | 2001-11-28 | 2002-11-29 | Flexible connector cover assembly mounted on apparatus |
AT02794085T ATE307401T1 (en) | 2001-11-28 | 2002-11-29 | ARRANGEMENT FOR MOUNTING A FLEXIBLE CONNECTOR FRAME |
EP02794085A EP1402602B1 (en) | 2001-11-28 | 2002-11-29 | Flexural connector cover assembly mounting apparatus |
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US33386501P | 2001-11-28 | 2001-11-28 | |
US60/333,865 | 2001-11-28 | ||
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US60/386,948 | 2002-06-07 |
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PCT/US2002/038273 WO2003047050A1 (en) | 2001-11-28 | 2002-11-29 | Flexural connector cover assembly mounting apparatus |
PCT/US2002/038243 WO2003047039A2 (en) | 2001-11-28 | 2002-11-29 | Interstitial ground assembly for connector |
PCT/US2002/038269 WO2003047044A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with isolation spacer |
PCT/US2002/038240 WO2003047049A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with flexural capabilities |
PCT/US2002/038241 WO2003047046A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with improved mating capability |
PCT/US2002/038242 WO2003047038A2 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly mounting apparatus |
Family Applications After (5)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2002/038243 WO2003047039A2 (en) | 2001-11-28 | 2002-11-29 | Interstitial ground assembly for connector |
PCT/US2002/038269 WO2003047044A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with isolation spacer |
PCT/US2002/038240 WO2003047049A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with flexural capabilities |
PCT/US2002/038241 WO2003047046A1 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly with improved mating capability |
PCT/US2002/038242 WO2003047038A2 (en) | 2001-11-28 | 2002-11-29 | High-density connector assembly mounting apparatus |
Country Status (8)
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US (6) | US6979215B2 (en) |
EP (6) | EP1449279B1 (en) |
JP (5) | JP4021849B2 (en) |
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AT (4) | ATE295005T1 (en) |
AU (6) | AU2002346593A1 (en) |
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JP2008535187A (en) * | 2005-03-31 | 2008-08-28 | モレックス インコーポレーテッド | High density and robust connector for stacked applications |
JP2008535185A (en) * | 2005-03-31 | 2008-08-28 | モレックス インコーポレーテッド | High density and robust connector with inductive insert |
JP4685155B2 (en) * | 2005-03-31 | 2011-05-18 | モレックス インコーポレイテド | High density and robust connector with inductive insert |
JP4685157B2 (en) * | 2005-03-31 | 2011-05-18 | モレックス インコーポレイテド | High density and robust connector |
JP4685156B2 (en) * | 2005-03-31 | 2011-05-18 | モレックス インコーポレイテド | High density and robust connector for stacked applications |
US8734000B2 (en) | 2010-07-20 | 2014-05-27 | Au Optronics Corporation | Light module, composite circuit board device used therein, and assembling method thereof |
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