EP0729206B1 - PCMCIA input/output card connector - Google Patents

PCMCIA input/output card connector Download PDF

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Publication number
EP0729206B1
EP0729206B1 EP96300459A EP96300459A EP0729206B1 EP 0729206 B1 EP0729206 B1 EP 0729206B1 EP 96300459 A EP96300459 A EP 96300459A EP 96300459 A EP96300459 A EP 96300459A EP 0729206 B1 EP0729206 B1 EP 0729206B1
Authority
EP
European Patent Office
Prior art keywords
terminals
spline
housing
base
shield
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.)
Expired - Lifetime
Application number
EP96300459A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0729206A3 (en
EP0729206A2 (en
Inventor
Randy Gray Simmons
Ronald Dillon Sizemore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whitaker LLC
Original Assignee
Whitaker LLC
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Filing date
Publication date
Application filed by Whitaker LLC filed Critical Whitaker LLC
Publication of EP0729206A2 publication Critical patent/EP0729206A2/en
Publication of EP0729206A3 publication Critical patent/EP0729206A3/en
Application granted granted Critical
Publication of EP0729206B1 publication Critical patent/EP0729206B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R12/70—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
    • H01R12/725—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 presenting a contact carrying strip, e.g. edge-like strip
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • 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
    • H01R13/6582—Shield structure with resilient means for engaging mating connector
    • 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]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6594—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
    • H01R13/6595—Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members with separate members fixing the shield to the PCB

Definitions

  • This invention is related to electrical connectors for providing an interface between a printed circuit card and an external device or component. More specifically, this invention is related to an input/output electrical connector which can be used with a PC Card, such as a PCMCIA card assembly. Still more specifically, this invention is related to an input output electrical connector or header that complies with the PCMCIA Open System Standard for I/O Connectors and can be used as a local area network connector, a modem simple implementation connector, or a modem multifunctional connector.
  • PCMCIA Personal Computer Memory Card International Association
  • PCMCIA is an organization composed of a number of manufacturers of PC cards and related peripheral equipment. This organization has established standards or specifications for memory cards used with computers and especially for use with laptop, notebook or portable computers. PC cards which meet this PCMCIA standard are credit card-sized wafers. The dimensions of a PCMCIA standard card assembly are 85 mm in length and 55 mm wide. These cards employ a high density electrical connector to connect the PC card to the personal computer or other computing equipment with which the PCMCIA card is to be used. This high density electrical connector includes a number of sockets which mate with pins on the computer. This high density connector meets the requirements of PC Card standard, Release 2.0, PCMCIA (September 1991) which defines the PC Card's physical outline and the connector system qualification test parameters, including reliability, durability and environmental test parameters.
  • PCMCIA cards can be used with laptop or notebook personal computers to provide an interface to a peripheral device such as an external floppy disk drive.
  • PCMCIA cards can also be used as memory cards, including Flash, EPROM, DRAM or as other memory cards. When used in these applications the PCMCIA cards are inserted into a card slot and into engagement with a standard high density connector mounted on a printed circuit board in the computer.
  • PCMCIA cards are not limited to use as memory cards or external floppy disk drives that have no external connection other than their connection to the computer. These cards can also be used as part of an external modem which is connected to an external telephone line or as part of a local area network interface assembly. Modems and local area networks in turn require specific cable interconnections. For example, a modem will typically require an RJ-11 six position connector for an interface to a standard telephone line. Different local area networks typically require different connections. These local area network interconnections include RJ-45 eight position connectors for shielded or unshielded twisted pair, coaxial connections for Ethernet and fiber optic connections for FDDI local area networks.
  • PCMCIA Card Standard Release 2.0 defines an Open System Standard including a common male and female I/O interface.
  • This Open System Standard includes three distinct mating key configurations. One key is for local area network applications including Ethernet, Token Ring, Arcnet, Fast Ethernet and ATM. A second key configuration is for Modem Simple Implementation. A third key configuration is for Modem Multifunctional Implementation.
  • These Open System mating interface key configurations are formed on a keyed housing spline which comprises a generally flat protruding blade on the insulative housing of the Card I/O connector mounted on the PCMCIA card assembly.
  • Pin terminals are located side by side on the opposite surface of the keyed spline. These standard connectors include up to fifteen pins spaced apart on 0.80 mm centerlines. Pins 1 and 15 are make first, break last contacts having a length of 3.9 mm. Pins 2-14 are signal contacts have a length of 3.0 mm. The front ends of the longer make first, break last contacts on the ends of the terminal array are closer to the forward edge of the keyed connector spline than the signal contacts. Therefore, the make first, break last contacts will engage corresponding contacts of the standard cable connector while the signal contacts are disengaged to prevent extraneous signals or excessive signal levels from being transmitted on pins 2-14.
  • the Open System Standard defining the I/O configuration is intended to promote availability of multi-sourced I/O connectors satisfying PCMCIA-mandated design criteria by promoting uniform implementation interfaces. However, there is no requirement that all I/O connectors meet this standard. Nonstandard I/O connectors will function properly provided that compatible male and female configurations are used. There are a number of prior configurations which predate the Open System Standards.
  • U.S. Patent 5,330,360 discloses a memory card frame kit which uses an I/O connector that does not employ the keying configuration mandated by the PCMCIA Open System Standard. That connector includes an array of pin terminals located on one side of a housing spline, but does not employ tongue and groove keys on the opposite spline surface.
  • That connector also employs an insulative housing with a D-shaped mating interface.
  • a keying rib extends between the D-shaped peripheral mating interface and the centrally positioned spline on commercially available configurations of this connector.
  • Other commercially available versions of I/O connectors include a mating interface in which the outer periphery is defined by a shield with distinct housing keys located on the sides of the mating interface.
  • Versions of these connectors manufactured by AMP Incorporated employ insert molded housings in which the terminals are held in position in a mold by molding pins and the housing is then injection molded around the terminals and the molding pins. The sections of the mold move towards and away from the housing spline and perpendicular to the orientation of the terminals. The molding pins also move away from the housing and small holes, through which the terminals are exposed are left in the conventionally injected molded housing.
  • I/O connectors that meet the PCMCIA Open System Standard for I/O connectors are also commercially available.
  • Honda Connectors markets and sells a Type I Open System shielded I/O connector in which the shield defines the outer mating interface.
  • the shield on that connector is wrapped around an insulative housing, and a keyed spline extends from the front of the main body of the insulative housing. Grooves are molded on the housing spline and discrete tongues or male keys are inserted into these grooves to form the distinct keyed configurations defined by the Open Systems Standard.
  • the insulative housing includes hold down protrusions. Each protrusion contains a rivet to secure the I/O connector to an edge of the PC card. Individual contacts are inserted through the main body of the insulative housing into position on the lower surface of the housing spline. The forward edges of the make first break last contacts are exposed along the front edge of the spline.
  • Foxconn Connectors also markets a card I/O connector which meets the PCMCIA Open System Standard.
  • This latter card I/O connector is a thicker Type II connector in which the peripheral mating interface is formed by the insulative housing. A shield is inserted around a portion of the housing. This shield does not extend to the forward edge of the housing, leaving an unshielded gap.
  • This prior art connector also includes contacts that are inserted through holes in the housing base and that are positioned on the lower edge of the housing spline. Individual keys are similarly inserted in molded grooves on the spline lower surface to define different keying configurations. The front ends of the make first, break last contacts are also exposed along the forward edge of the housing spline.
  • the present invention resides in an input/output electrical connector as defined in claim 1.
  • the connector of the invention can also be used with other versions of PCMCIA card assemblies and other high density, small PC card applications.
  • the terminals are positioned along one surface of the keyed spline which is formed by a section of the mold which is shifted parallel to the terminals during extraction of the insert molded housing subassembly from the housing mold.
  • the spline may include molded ridges extending between the forward edge of the spline and the forward end of each terminal to protect the terminals when a cable connector is connected to the edge mounted card I/O connector containing these terminals.
  • the card I/O connector includes a molded insulative housing having a base and a keyed spline extending from the front of the base. An array of terminals are positioned along one surface of the keyed spline.
  • the insulative housing is insert molded around the portions of the terminals extending through the base of the housing.
  • the rear portion of the terminals are configured to mate with a PC Card, and in the preferred embodiment, the rear terminal portions comprise surface mount terminal sections.
  • the keyed spline is molded using a mold slide which is shifted parallel to the portions of the terminals positioned along the lower surface of the spline and parallel to the tongue and groove keys which are formed along the top of the spline.
  • the small terminal contacts can then be held in position by the mold.
  • Small positioning pins need not be included in the mold. These small mold pins are relatively fragile parts of a mold and would tend to reduce its life or increase mold maintenance. By providing lead in sections in the mold, the array of closely spaced small pins can be inserted and properly positioned while reducing the possibility of damaging the pins.
  • the use of a mold slide to form this spline also permits different keyed splines to be molded, by simply using the appropriate mold slide. The top and bottom mold cavities need not be changed. Different keying configurations can therefore be efficiently molded without the need for a secondary operation in which keys are inserted in grooves in distinct patterns.
  • the keyed spline may include molded ribs in front of each terminal. These ribs protect the terminals during mating so that a mating connector cannot engage the front end of a terminal and bend it back. Since the keyed spline is formed by a mold slide which moves parallel to the terminals, these ribs can be easily molded. These ribs are especially important when used with relatively longer make first, break last pins which are closer to the forward edge of the spline and are therefore otherwise more likely to be damaged.
  • this small connector typically including fifteen terminals, an insulative housing, two striker plates for mechanically engaging a mating cable connector, and a single piece clamshell shield is also readily adaptable to automation to reduce manufacturing cost.
  • Figure 1 is an exploded perspective view of the components of a representative PCMCIA card assembly using an input/output electrical connector meeting the requirements of the PCMCIA open systems standard.
  • Figure 2 is a perspective view of the preferred embodiment of an input/output electrical connector which meets the requirements of the PCMCIA open systems standard.
  • Figure 3 is an exploded perspective view of the preferred embodiment of this invention showing the main housing subassembly, the shield and the striker plates used in this electrical connector.
  • Figure 4 is a top plan view of the housing subassembly of the preferred embodiment of this invention showing the keyed housing spline.
  • Figure 5 is a front view of the mating face of the housing subassembly, shown in Figure 4, showing the keyed housing spline and the position of the terminals on the lower surface of the keyed housing spline.
  • Figure 6 is a bottom plan view of the housing subassembly shown in Figures 4 and 5 showing the terminals on the bottom surface of the keyed housing spline.
  • Figure 7 is a side sectional view taken along the section lines 7-7 in Figure 6 which extends through one of the make first, break last terminals located on the ends of the terminal array.
  • Figure 8 is a side sectional view taken along the section lines 8-8 in Figure 6 which extends through one of the signal terminals located between the make first, break last terminals.
  • Figure 9 is a perspective view of the housing subassembly showing the terminal mating surface.
  • Figure 10 is an enlarged view of a portion of the contact surface and the terminals on the housing subassembly shown within the circle 10-10 in Figure 9.
  • Figure 11 is a perspective view showing the manner in which the housing subassembly is formed by insert molding the terminals in the insulative housing.
  • Figure 12 is a side sectional view showing the manner in which the housing subassembly in positioned in the shield during fabrication of the connector.
  • FIG. 1 shows the basic elements of a PCMCIA card assembly or frame kit 2 that uses an input/output electrical connector or header 18 complying with the PCMCIA Open System Standard.
  • This PCMCIA card assembly 2 comprises an interface between a computer or other processor and a local area network, modem or similar system communicating with the computer or processor.
  • the heart of the PCMCIA card assembly 2 is a PCMCIA card or memory card 4.
  • This card 4 is a printed circuit board. Circuit elements or components used for storing, receiving, transmitting or other standard data processing or manipulation are mounted on this printed circuit board.
  • PCMCIA card 2 can contain all of the circuit elements necessary to implement a modem, or it can comprise a network interface card.
  • the PCMCIA card assembly also includes a top cover 6 and a bottom cover 8.
  • This PCMCIA card assembly 2 is approximately 85 mm long and 55 mm wide.
  • PCMCIA card assembly 2 has two electrical connectors located at opposite ends.
  • a socket or receptacle connector 10 is located at one end.
  • This receptacle connector 10 includes socket terminals of conventional construction which mate with pins protruding into a card slot on a computer when the PCMCIA card assembly 2 is mated with a computer. Insertion of the card into the slot and mating engagement of this connector with the computer is conventional in nature and need not be shown.
  • An input/output electrical connector or header or card I/O connector 18 is located at the opposite end of the card assembly 2. This header 18 is mounted in a peripheral frame forming part of the lower cover 8 and is soldered to the card 4 in a cutout or notch on this end of the card.
  • Figure 2 shows the mating face of the preferred embodiment of the PCMCIA Card I/O connector 18.
  • Figure 3 shows the rear face of the connector 18 and shows three different elements, the housing subassembly including the molded insulative housing 20 and the terminals 60, the clamshell shield 80, and two striker plates 76.
  • Figures 4-8 are detailed two-dimensional views of the housing subassembly.
  • This card I/O connector is relatively small.
  • Card I/O connector 18 is approximately 17.40 mm wide, 4.40 mm high and 8.80 mm deep.
  • the molded insulative housing 20 is a one piece member comprising a base 22 with two mounting arms 30 and a keyed housing spline 38 extending from the housing base 22 toward the front of the card I/O connector 18.
  • the base top surface 24 and base bottom surface 26 are substantially identical and are mutually parallel.
  • the base rear surface 28 is substantially flat and the terminals 60 extend through the base mounting surface.
  • the keyed housing spline 38 is an integrally molded extension from the front of the housing base 22. This keyed housing spline 38 is substantially parallel to the top and bottom base surfaces 24, 26 and is positioned between these two surfaces.
  • the side ends of the keyed housing spline 38 are spaced from the two base mounting arms 30, and gaps are formed between the spline 38 and each mounting arm 30.
  • Slots 34 extend through the base 22 in alignment with these gaps between the spline 38 and the mounting arms 30.
  • the mounting arms 30 are substantially C-shaped in cross section with the slots 34 being positioned in the center of the C-shaped cross section.
  • Crimp grooves 32 extend between the front and rear along the outer surface of each mounting arm 30.
  • the base 22 also includes a rib 36 located on the top and bottom surfaces. The crimp grooves 32 and the housing ribs 36 are used to mount the shield 80 on the molded housing 20 in a manner to be subsequently described in more detail.
  • the blade-like keyed housing spline 38 extending from the front of the base 22 has a keying face 48 and an oppositely directed contact face 50.
  • the entire contour of the keying face 48 comprises keying means matable with a compatible female keying surface (not shown) on the cable connector 16. Both of these keying surfaces are defined by the PCMCIA Open Systems Standard so that noncomplementary connectors cannot be mated. For example, a cable connector having a local area network keying configuration cannot be mated with an card I/O connector having a modem keying configuration.
  • the keying means for the card I/O connector 18 comprises a series of key tongues 42 protruding above the centerline of the spline keying face 48 and key grooves 44 recessed below the face 48. It is the relative position of keys 42 and grooves 44, along with the orientation of the angled or chamfered spline side edges 40 that form the keying configuration or keying means on card I/O connector 18.
  • Contact terminals 60 extend along contact surface 50 on the keyed spline 38.
  • This contract surface 50 is on the face opposite to the spline keying face 48 where the tongues 42 and the grooves 44 are located.
  • This contact surface 50 extends from the front of housing base 22 to the forward spline edge 46.
  • a spline rib 54 molded as part of the housing spline 38 extends between the forward spline edge and the forward end 72 of each terminal 60. These spline ribs 54 protect the terminals during mating so that the mating cable connector does not bend the terminals.
  • the embodiment of the card I/O connector 18 depicted herein also includes a spline ridge 56 which extends from the base 22 to the spline forward edge 46.
  • this spline ridge is located between two terminals 60.
  • the spacing between the spline ridge 56 and each adjacent terminal is the same as the spacing between adjacent terminals.
  • the spline ridge 56 is a molded replacement for an omitted terminal.
  • a spline ridge 56 is molded when a terminal is omitted from the card I/O connector 2. Terminals can be omitted when the terminal in that position is not used by the specific PCMCIA card application with which that connector is to be used.
  • a recess 58 is located at the juncture between the base 22 and the spline 38 next to the spline contact surface 50. This recess 58 is also formed during the molding process and will be subsequently discussed in more detail.
  • the terminals 60 are stamped and formed and, in the preferred embodiment, these terminals are formed from a material, such as, brass. These terminals are substantially square in cross section and are approximately .25 mm on each side.
  • the card I/O connector 18 conforming to the PCMCIA Open Systems Standard employs up to fifteen terminals 60.
  • the centerline spacing between adjacent terminals 60 is 0.8 mm.
  • a row of terminals 60 includes two types of terminals 62 and 64 that differ only in their relative length.
  • the terminals 62 in positions one and fifteen on the ends of the array of terminals function as make first, break last terminals and are longer than the other signal terminals 64.
  • the length of the make first, break last terminals is 3.9 mm, and the length of the other signal terminals is 3.0 mm.
  • the forward ends 72 of the longer make first, break last terminals are closer to the forward spline edge 46 than the forward ends 72 of the other signal terminals 64, so that these terminals engage mating cable connector terminals first (make first) and disengage after the other terminals during unmating (make last).
  • these make first, break last terminals 62 are ground terminals and their make first, break last configuration prevents undesirable signal levels from being transmitted over the other signal terminals.
  • Each of the terminals 60, positioned along the contact surface 50 is positioned behind a spline rib 54 as previously described.
  • the bottom 68 of each terminal 60 is slightly below the portion of the contact surface 50 immediately adjacent each terminal and the top surface 66 of each terminal protrudes above the aligned spline ridge 56.
  • Each terminal has a rear section 74 extending from the rear of the housing base 44. This rear section 74 is configured so that the terminal can be surface mount soldered to a corresponding surface mount pad 12 on the PC card 4.
  • Each terminal 60 also extends through the housing base 22 and the housing is insert molded around the terminals 60. This insert molding step will be subsequently discussed in more detail.
  • Each terminal 60 extends from the housing base 22 through the recess 58 at the juncture of the base and spline. This relative position between the terminals 60 and the recess 58 is also a function of the insert molding process to be discussed subsequently.
  • each slot 34 extends through the housing base 22 and are aligned with the gap between the mounting arms 30 and the housing spline 38.
  • Each slot 34 receives a striker plate 76 inserted from the rear of the housing.
  • each striker plate 76 includes a rectangular opening 78 adjacent the front edge of the striker plate. This opening 78 is positioned to engage a latch on the cable connector 16 when the cable connector and the card I/O connector are mated. The position of this latch on the cable connector 16 is specified by PCMCIA Card Standard - Release 2.0.
  • the striker plates 76 are inserted into slots 34 prior to assembly of the shield 80 on the housing 20.
  • the shield 80 is a clamshell stamped and formed member.
  • the preferred embodiment of the shield is formed from stainless steel.
  • Shield 80 has a top section 86 and a bottom section 88.
  • Two shield tabs 82 are bent down from the top shield section 86, as best seen in Figure 3.
  • These shield tabs 82 also include distal tab sections 84 that are in turn bent down from the shield tab 82.
  • These distal tab sections are dimensioned to fit in the two holes 14 on the PC Card 4 that are shown in Figure 1.
  • These shield tabs can be soldered to the PC Card 4 and serve to mechanically secure the card I/O connector 18 to the PC Card 4.
  • the shield 80 also includes a frame section 92 located between the top shield section 86 and the bottom shield section 88.
  • the top shield section 86 is joined to the upper frame section 96 and the bottom shield section 88 is joined to the lower frame section 98.
  • This frame section is best shown in Figure 2.
  • the frame section 92 also includes side frame sections 100 which join the upper frame section 96 to the lower frame section 98 at both ends.
  • a central opening 94 is formed by the upper, lower and side frame sections, all of which are in a common vertical plane perpendicular to the housing spline 38, to the terminals 60 and to the direction in which the cable connector 16 is inserted into mating engagement with the card I/O connector 18.
  • this central opening 94 is generally rectangular with two chamfered sections located at the top corners where the upper frame section 96 joins the two side frame sections 100.
  • the contour formed by this central opening 94 forms the peripheral mating surface for engagement with the cable connector 16.
  • This contour is for a Type II configuration defined by PCMCIA Open Systems Standard, Release 2.0. This standard does not, however, require that this peripheral mating contour be formed by the shield or by portions of a shield in a common plane.
  • Shield 80 also includes contact tabs for establishing ground contacts with both the card assembly and with the cable connector 18.
  • Spring tabs 104 are struck from the top and bottom shield sections. These tabs 104 engage the top cover 6 and the bottom cover 8 when the card I/O connector 18 is attached as part of the card assembly 2.
  • a cantilever spring section 90 extends from the inner edge of the upper frame section 86 toward the rear of the connector. This cantilever spring section 90 is shown in Figure 12 where the shield 80 is shown in its partially open position prior to assembly to the housing 20. This cantilever spring section 90 is positioned to engage a shield on the cable connector 18 when mated with the card I/O connector 18.
  • the cantilever spring section 90 extends between the top shield section 86 and the bottom shield section 88.
  • Cantilever spring section 90 also extends between the top shield section 86 and the keying surface on the housing spline 38 when the shield is mounted on the molded housing 20.
  • the shield 80 surrounds the molded housing 20 and the mounting arms 30 support the shield 80.
  • Side sections 102 extend inwardly from the top shield section 86 and the bottom shield section 88 and secure the shield 80 to the mounting arms. The ends of the side shield sections 102 are crimped inwardly into the crimp grooves 32 on the outside of the mounting arms 30 to secure the shield 80 to the housing 20.
  • Slots 106 located on the top and bottom sections of the shield 80 are dimensioned to receive ribs 36 molded on the top and bottom faces of the housing base 22 to provide additional retention of the shield 80 on the housing 20.
  • Side shield tabs 108 extend downwardly from both sides of the top shield section 86. These side shield tabs 108 are dimensioned so that they engage the PC card to support the card I/O connector 18.
  • Lateral shield tabs 110 also extend from the sides of the shield 80. These lateral shield tabs 110 are located adjacent to the front of the shield 80 and extend from the side frame sections 100. The lateral shield tabs 110 initially are bent rearward relative to the frame section 92 and then extend laterally out from each side of the shield 80. These laterally extending tabs 110 are inserted in slots on the PC card assembly frame on each side of the cutout section in which the card I/O connector 18 is mounted so that the connector 18 and the PC card to which it is attached are properly positioned relative to the card frame and to the bottom cover 8.
  • each part of the shield frame section 92 is joined to a portion of the shield extending rearward and perpendicular to the plane of the shield section.
  • This frame section 92 which forms the peripheral mating surface of the opening 94 through which cable connector 16 is inserted during mating, is therefore relatively robust and rigid and will not significantly deform during connector mating.
  • the top shield section 86 will not tend to bow outward during insertion of a cable connector 16 through opening 94. Since the keying face on spline 38 faces this top section 86, any tendency of the top section to bow outwardly during mating could permit insertion of a cable connector with the wrong keying configuration.
  • Figures 11 and 12 show two of the steps in the fabrication the I/O card connector 18.
  • the insulative housing 20 is insert molded around the terminals 60.
  • Figure 11 shows the extraction from the mold of the insert molded subassembly including the terminals embedded in the housing.
  • the mold used in this insert molding process includes three pieces.
  • the top mold piece includes a cavity, not shown, which molds the top surface of the housing 20.
  • This top mold piece engages the mold base 118 which contains a mold cavity the molds the lower housing surface.
  • the arrow on the top mold piece 116 shows that the top mold piece has raised after the housing has been molded.
  • the lower arrow shows that the housing subassembly has been ejected from the cavity in the mold base 118.
  • the mold used to insert mold the housing around the terminals 60 also includes a third section in form of a mold slide 114.
  • the arrow in Figure 11 shows that this mold slide 114 moves in a direction parallel to the interface between the top mold piece 116 and the mold base 118.
  • the first step in fabricating the housing subassembly is to position terminals 60 on a carrier strip, as shown in Figure 11, in the mold cavity between the top mold piece 116 and the mold base 118.
  • the terminals 60 are joined to the carrier strip at the rear, and the forward ends of the terminals 60 are separate.
  • the terminals extend into the mold cavity toward the mold slide 114. After the terminals are positioned in the cavity in the bottom mold base 118, the mold slide 114 moves into position.
  • the mold slide 114 has an internal cavity which includes a mold surface 112 which forms the contact surface of the housing spline 38.
  • the mold surface 112 also includes a series of grooves in which the individual terminals are positioned during the insert molding process.
  • the front portion of the mold surface 112 extends slightly forward of the remainder of the mold front face and each groove in this mold surface includes a lead-in that aligns the individual terminals and insures that the terminals are properly positioned in the grooves. This portion of the mold is too small to be seen in Figure 11.
  • the mold surface 112 Since this portion of the mold surface 112 extends beyond the surrounding area on the front of the mold slide, the recess 58 at the juncture of the housing base and the spline 38 is formed.
  • the opposite side of the mold surface 112 forms the tongue and groove configuration of the keying surface on spline 38. Since the tongues 42 and grooves 44 are parallel to the terminals 60, the mold slide 114 can be withdrawn parallel to the tongues 42 and grooves 44 and to the terminals 60 after plastic has been injected around the terminals.
  • Molding the housing spline 38 in this manner has several advantages. Since a number of keying configurations may be required on the spline, only the mold slide needs to be changed to mold a different connector housing. Since each configuration of the molded spline is molded with only this simple mold change, there is no need to use the prior art expedient of inserting additional keys in a common spline configuration to form different keying configurations. These additional keys can fall out during use and require an additional assembly operation that adds to the manufacturing cost.
  • the grooves on the mold surface 112 of the mold slide also position the terminals in the mold without the need for additional pins to hold the terminals in position.
  • Insert molding also provides a tight fitting interface between the terminals 60 and the housing base 22. Insert molding also facilitates the fabrication of connectors including only a portion of the terminals. If one or more terminals is unnecessary for a given application, it can be omitted. The omitted terminals are simply punched out of the terminal lead frame before positioning the lead frame in the mold. Plastic injected into the mold will then fill up that portion of the mold cavity otherwise occupied by the omitted terminal. There will be no opening in the base 22 caused by the omission of one or more terminals. The groove on the mold surface 112 will also be filled by the injected plastic resulting in the formation of the spline ridges 56 shown in Figures 9 and 10.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP96300459A 1995-02-22 1996-01-24 PCMCIA input/output card connector Expired - Lifetime EP0729206B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US39243095A 1995-02-22 1995-02-22
US39243595A 1995-02-22 1995-02-22
US392435 1995-02-22
US392430 1995-02-22

Publications (3)

Publication Number Publication Date
EP0729206A2 EP0729206A2 (en) 1996-08-28
EP0729206A3 EP0729206A3 (en) 1997-10-08
EP0729206B1 true EP0729206B1 (en) 2000-08-09

Family

ID=27013877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96300459A Expired - Lifetime EP0729206B1 (en) 1995-02-22 1996-01-24 PCMCIA input/output card connector

Country Status (4)

Country Link
EP (1) EP0729206B1 (pt)
JP (1) JPH08250217A (pt)
BR (1) BR9600710A (pt)
DE (1) DE69609644T2 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6773291B1 (en) 1993-11-12 2004-08-10 Intel Corporation Compliant communications connectors

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US5696669A (en) * 1996-01-11 1997-12-09 Molex Incorporated Shielding system for PC cards
JPH11119861A (ja) * 1997-10-09 1999-04-30 Molex Inc イジェクト機構付きカード用コネクタ装置
JPH11111405A (ja) * 1997-10-03 1999-04-23 Japan Aviation Electron Ind Ltd 基板実装用コネクタ
EP0908980A3 (en) * 1997-10-09 2000-06-21 Molex Incorporated Card connector with improved grounding terminal
EP0908977A3 (en) * 1997-10-09 2000-06-21 Molex Incorporated Card connector with improved grounding terminal
EP0908978A3 (en) * 1997-10-09 2000-06-21 Molex Incorporated Card connector assembly
US6116962A (en) * 1997-11-17 2000-09-12 Xircom Inc Type III PCMCIA card with integrated receptacles for receiving standard communications plugs
US5984731A (en) * 1997-11-17 1999-11-16 Xircom, Inc. Removable I/O device with integrated receptacles for receiving standard plugs
JP4615646B2 (ja) * 1999-07-21 2011-01-19 オリンパス株式会社 プリンタ
DE10227602B4 (de) * 2002-06-20 2017-06-22 Lisa Dräxlmaier GmbH Verfahren zur Herstellung eines Steckverbinders für Flachleiter
JP3778555B2 (ja) 2002-11-14 2006-05-24 日本航空電子工業株式会社 基板搭載用コネクタ
CN101015095B (zh) * 2004-07-07 2012-05-09 莫莱克斯公司 用于和小尺寸插塞式连接器一起使用的键式外壳
KR20100048200A (ko) * 2008-10-30 2010-05-11 삼성전자주식회사 커넥터, 커넥터 어셈블리 및 이를 포함하는 표시 장치
DE102008054724A1 (de) * 2008-12-16 2010-06-17 Robert Bosch Gmbh Elektrischer Steckverbinder
JP5827574B2 (ja) * 2012-01-23 2015-12-02 ヒロセ電機株式会社 シールド板付電気コネクタ

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IE892171A1 (en) * 1989-07-06 1991-01-16 Desbury Ltd A mould for a cable connector
JP3078616B2 (ja) * 1991-08-30 2000-08-21 ケル株式会社 プラグコネクタおよびその製造方法
US5330360A (en) * 1992-08-21 1994-07-19 The Whitaker Corporation Memory card and connector therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6773291B1 (en) 1993-11-12 2004-08-10 Intel Corporation Compliant communications connectors
US6832920B2 (en) 1993-11-12 2004-12-21 Intel Corporation Compliant communications connectors

Also Published As

Publication number Publication date
EP0729206A3 (en) 1997-10-08
BR9600710A (pt) 1997-12-30
EP0729206A2 (en) 1996-08-28
DE69609644T2 (de) 2000-12-28
JPH08250217A (ja) 1996-09-27
DE69609644D1 (de) 2000-09-14

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