WO2004105455A2 - Connecteur de carte memoire - Google Patents

Connecteur de carte memoire Download PDF

Info

Publication number
WO2004105455A2
WO2004105455A2 PCT/US2004/016217 US2004016217W WO2004105455A2 WO 2004105455 A2 WO2004105455 A2 WO 2004105455A2 US 2004016217 W US2004016217 W US 2004016217W WO 2004105455 A2 WO2004105455 A2 WO 2004105455A2
Authority
WO
WIPO (PCT)
Prior art keywords
memory card
card connector
housing
section
suction surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/016217
Other languages
English (en)
Other versions
WO2004105455B1 (fr
WO2004105455A3 (fr
Inventor
Hao Qui Jin
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.)
Molex LLC
Original Assignee
Molex LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Molex LLC filed Critical Molex LLC
Publication of WO2004105455A2 publication Critical patent/WO2004105455A2/fr
Publication of WO2004105455A3 publication Critical patent/WO2004105455A3/fr
Publication of WO2004105455B1 publication Critical patent/WO2004105455B1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0256—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms
    • H05K5/0286—Receptacles therefor, e.g. card slots, module sockets, card groundings
    • H05K5/0291—Receptacles therefor, e.g. card slots, module sockets, card groundings for multiple cards
    • 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
    • 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
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts

Definitions

  • This invention generally relates to the art of electrical connectors and, particularly, to a memory card connector having a housing that can be manipulated by a vacuum pick-up head.
  • Memory cards are known in the art and contain intelligence in the form of a memory circuit or other electronic program. Some form of card reader reads the information or memory stored on the card. Such cards are used in many applications in today's electronic society, including video cameras, digital still cameras, smartphones, music players, ATMs, cable television decoders, toys, games, PC adapters, multi-media cards and other electronic applications.
  • a memory card includes a contact or terminal array for connection through a card connector to a card reader system and then to external equipment.
  • the connector readily accommodates insertion and removal of the card to provide quick access to the information and program on the card.
  • the card connector includes terminals for yieldingly engaging the contact array of the memory card.
  • a typical memory card connector includes an insulating housing structure usually having a lateral terminal-mounting section across the rear of the connector.
  • the contacts or terminals of the connector are mounted on this lateral section.
  • the housing may have one or two legs projecting at right angles forwardly from one or both sides or ends of the lateral section.
  • the insulating housing of such connectors typically is molded of dielectric plastic material into the desired shape.
  • the terminals are stamped and formed of a sheet metal material having a high resiliency, such as phosphor bronze.
  • the connector often is mounted on the top surface of a printed circuit board, and solder tail portions of the terminals are connected, as by a reflow soldering process, to appropriate circuit traces on the board.
  • FIG. 1 shows a memory card connector, generally designated 16, according to the prior art as described above and mounted on a printed circuit board 18.
  • the connector includes a dielectric housing, generally designated 20, which includes a rear terminal-mounting section 22 and a pair of side wall sections 24 extending forwardly from opposite ends of the rear section to define a receiving space 26 for receiving a memory card 28 inserted thereinto in the direction of arrow "A".
  • the rear section 22 mounts a plurality of terminals 29 for engaging appropriate contacts on the memory card when inserted into the connector.
  • An object, therefore, of the invention is to provide a new and improved memory card connector of the character described.
  • Another object of the invention is to provide a memory card connector which has a housing with provision for accepting an appropriate vacuum pick-up head for manipulating and placing the housing and/or connector.
  • the connector includes an insulative housing having a rear terminal-mounting section defining a receptacle for receiving a mating end of a memory card. At least one longitudinal side wall section extends forwardly from one end of the rear section. A plurality of conductive terminals are mounted on the rear terminal-mounting section of the housing for engaging appropriate contacts at the mating end of the memory card when inserted into the receptacle. An enlarged flat suction surface is provided on the top of the insulative housing. The suction surface is of a sufficiently large size to accommodate an appropriate vacuum pick-up head for manipulating and placing the housing.
  • the enlarged flat suction surface is located on the rear terminal-mounting section of the housing.
  • the rear section is elongated and the suction surface is located generally centrally thereof.
  • the suction surface is circular.
  • the enlarged flat suction surface is on a separate suction member affixed to insulative housing.
  • the suction member is fabricated of metal material.
  • a pair of the side wall sections extend forwardly from opposite ends of the rear terminal-mounting section and between which the memory card is inserted into the receptacle of the rear section.
  • a center wall section extends forwardly from a mid-point of the rear section to divide the receptacle into two portions for receiving a pair of reduced-size memory cards between the center wall section and the two side wall sections.
  • the enlarged flat suction surface is located generally at a point where the center wall section joins the rear terminal-mounting section.
  • FIG. 1 is a perspective view of a prior art memory card connector mounted on a circuit board for receiving a memory card, as described in the Background, above;
  • FIG. 2 is an exploded perspective view of a memory card connector according to the invention with the components thereof in disassembled condition;
  • FIG. 3 is a perspective view similar to that of FIG. 2, with the connector in assembled condition;
  • FIG. 4 is an exploded perspective view similar to that of FIG. 2, on a reduced scale and including a cover for the connector;
  • FIG. 5 is an exploded perspective view of another embodiment of a memory card connector according to the invention, with the side wall sections and center wall section fabricated of metal material, in conjunction with an accompanying circuit board;
  • FIG. 6 is a perspective view of the connector of FIG. 5 in assembled condition and mounted to the circuit board;
  • FIG. 7 is an exploded perspective view of the embodiment of FIGS. 2-4, in conjunction with a pair of reduced-size memory cards and a circuit board;
  • FIG. 8 is a perspective view of the two memory cards of FIG. 7 inserted into the assembled connector
  • FIG. 9 is a perspective view of the connector mounted on the circuit board and about to receive a single memory card
  • FIG. 10 is a view similar to that of FIG. 9, but with the connector about to receive a single reduced-size memory card;
  • FIG. 11 is a view similar to that of FIG. 8, but showing a cover for the connector
  • FIG. 12 is a perspective view of a further embodiment of the invention wherein the connector includes a separate suction member
  • FIG. 13 is a bottom perspective view of the memory card shown in FIG. 9.
  • FIG. 14 is a bottom perspective view of the reduced-size memory card shown in FIG. 10 and other selected views.
  • a first embodiment of a memory card connector includes an insulative housing, generally designated 32, having an elongated rear terminal-mounting section 34 defining a receptacle 36 for receiving a mating end of a memory card, as described hereinafter.
  • a plurality of conductive terminals 42 are mounted on rear section 34 of the housing for engaging appropriate contacts at the mating end of the memory card(s) when inserted into receptacle 36.
  • the terminals are divided into two groups on opposite sides of center wall section 40 as can be seen clearly in FIGS. 2 and 3.
  • Rear terminal-mounting section 34 is a one-piece structure molded of dielectric plastic material.
  • the rear section is elongated and includes a pair of end supports 34a.
  • a pair of end connecting fingers 34b project forwardly from end supports 34a, and a third or center connecting finger 34c projects forwardly from the rear section at a mid-point thereof.
  • a guide finger 36d projects forwardly from a mid-point of the rear section, aligned above center connecting finger 34c and within receptacle 36.
  • an enlarged flat suction surface 44 is provided on the top of rear section 34 of housing 32.
  • the flat suction surface is of a sufficiently large size to accommodate an appropriate vacuum pick-up head for manipulating and placing the rear section of the housing or the entire connector. It can be seen that the enlarged flat suction surface is located generally at the center or mid-point of the elongated rear section of the housing.
  • Each side wall section 38 also is a one-piece structure and is molded of dielectric plastic material.
  • Each side wall section is generally L-shaped in cross section and includes an upright side wall 38a and an inwardly projecting bottom wall 38b. As viewed in the drawings, the side wall is generally vertical and the bottom wall is generally horizontal.
  • the side walls are guide walls for the memory card(s).
  • a pair of cut-outs or recesses 38c are formed in the inside surface of the vertical side wall.
  • a pair of chamfered latch bosses 38d project outwardly from the outside of the side wall.
  • a pair of positioning pins 38e project downwardly from the bottom of the horizontal bottom wall, and pairs of holes 38f are formed through the bottom wall.
  • a pair of mounting posts 38g project downwardly from bottom wall 38b for mounting the side wall section in a pair of holes in a printed circuit board, as will be seen hereinafter.
  • a rear positioning notch 38h is fo ⁇ ned in the bottom wall immediately adjacent the inside surface of the side wall, and a similar notch 38i is formed at the front of the bottom wall.
  • Notches 38i are card stabilizing notches.
  • Center wall section 40 is molded of plastic material and includes a pair of mounting posts 40a projecting from the bottom thereof for insertion into appropriate mounting holes in the printed circuit board. A plurality of positioning pins 40b also project downwardly from the center wall section. A front card stabilizing notch 40c and a rear notch 40d are formed in opposite ends of the center wall section. Finally, a partition rib 40e runs the length of the center wall section. The partitioning rib is a guide rib for the reduced-size memory cards, as will be seen hereinafter. Still referring to FIGS. 2 and 3, at least one, or more, grounding members, generally designated 46, are mounted in side wall sections 38. Two grounding members are shown, but four grounding members can be mounted in the side wall sections.
  • Each grounding member 46 is generally L-shaped and includes a generally horizontal base 46a and a vertical or upright arm 46b. A pair of side wings 46c project upwardly from opposite side edges of the base. A downwardly projecting detent 46d is embossed or formed from base 46a, and an inwardly projecting detent 46e is embossed or formed out of upright arm 46b.
  • Grounding members 46 are assembled to side wall sections 48 by pushing each grounding member upwardly through a hole into the bottom of a respective side wall section so that the upright arm 46b of the grounding member becomes inserted into a respective one of the recesses 38c in the side wall section. This can be seen in FIG. 3.
  • side wings 46c of the grounding member are press-fit into a pair of the holes 38f of the side wall section.
  • the inwardly projecting detents 46e on the upright arms will engage grounding contacts on the memory card(s).
  • Side walls 38a of the side wall sections, within recesses 38c, provide rigid back up means for arms 46b and detents 46e of the grounding members.
  • the bottom walls 38b of the side wall sections lay on top of the bases 46a of grounding members 46.
  • the downwardly projecting detents 46d on the bases of the grounding members will engage grounding circuit pads on the printed circuit board. Therefore, the memory card(s) are grounded to the circuit board through grounding members 46 which are mounted on side wall sections 38, as described.
  • Inwardly protruding detents 46e and downwardly protruding detents 46d establish a more positive contact engagement with the memory card and the circuit board, respectively.
  • the rear terminal-mounting section 34 of housing 32 is detachably assembled to side wall sections 38 and center wall section 40 as shown in FIG. 3.
  • end connecting fingers 34b of the rear section are press-fit into rear positioning notches 38h at the rear of the side wall sections.
  • center connecting finger 34c of the rear section is press-fit into rear notch 40d of center wall section 40, as shown.
  • FIG. 4 shows a cover 48 for positioning onto housing 32 of the memory card connector.
  • the cover is stamped and formed of sheet metal material and includes a top wall 48a and a pair of side walls 48b. The side walls overlie side wall sections 38 and end supports 34a of rear section 34 of the housing.
  • a pair of latch openings 48c are formed in each side wall.
  • a pair of grounding tabs 48d project outwardly from the bottom of each side wall.
  • a pair of latch arms 48e project forwardly from each side wall.
  • a pair of cantilevered grounding arms 48f are stamped and formed out of the top wall at opposite sides thereof.
  • Grounding tabs 48d of the cover form solder tails for fixing the cover to the circuit board and also grounding the cover to the board to provide good shielding and EMI protection for the connector.
  • Cantilevered grounding arms 48f engage ground portions on top of the memory card(s) and latch arms 48e hold the memory card(s) in the connector.
  • FIGS. 5 and 6 show another embodiment of the invention wherein a pair of side wall sections 38' and a center wall section 40' are stamped and formed of sheet metal material.
  • the metal wall sections are similar in function to plastic wall sections 38 and 40.
  • Each metal side wall section includes a vertical side wall 38a' and a horizontal bottom wall 38b'.
  • Each metal side wall section includes a downwardly projecting rear connecting flange 38h which is positioned in a connecting slot 50 at an end of rear section 34 of housing 32 to detachably interconnect the side wall sections to the rear section.
  • Each metal side wall section has a pair of mounting posts 38g' for insertion into a pair of mounting holes 52 in a printed circuit board 54.
  • the metal side wall section has an inwardly bent grounding tab 46' which, in essence, replaces the grounding members 46 of the first embodiment.
  • a downwardly embossed detent 56 is formed out of the bottom wall to engage the top of the circuit board to maintain the side wall section at a proper height.
  • a notch 38i' is formed at the front of the bottom wall.
  • a guide arm 58 having a slanted surface 58a, is formed out of the bottom wall, and a latch arm 60 is formed out of the vertical side wall. As seen in FIG. 6, guide arm 58 engages the top surface of circuit board 54, and slanted surface 58a of the guide arm guides the memory card(s) into the connector, while latch arm 60 will latch the card(s) in the connector.
  • Metal center wall section 40' includes a pair of mounting posts 40a' for insertion into a pair of mounting holes in circuit board 54.
  • a pair of upstanding positioning ribs 40e' are formed out of the center wall section.
  • FIG. 5 shows two linear groupings of circuit traces 64 on circuit board 54. These circuit traces are connected, as by soldering, to appropriate solder tails of the two groups of terminals 42. The solder tails of the terminals are not visible in the drawings.
  • FIGS. 7 and 8 show memory card connector 30 in conjunction with circuit board 54, with FIG. 8 showing the connector mounted to the board. These two depictions also show a pair of reduced-size memory cards 66 for mounting in the connector.
  • mounting posts 38g of side wall sections 38 are inserted into mounting holes 52 of the circuit board, and positioning pins 38e of the side wall sections are inserted into positioning holes 68 in the circuit board.
  • Mounting posts 40a of center wall section 40 are inserted into mounting holes 62 in the circuit board, while positioning pins 40b are inserted into positioning holes 70 in the circuit board.
  • Detents 46d on bases 46a of grounding members 46 will engage a pair of ground pads 72 on the circuit board.
  • Grounding tabs 48d (Fig. 4) of cover 48 will engage ground pads 74 on the circuit board.
  • each reduced-size memory card 66 includes a recessed mating end 76 which contains appropriate contacts for engaging the two groups of terminals 42.
  • the sides of the memory cards include ground contacts 78 for engaging the embossed detents 46e on upright arms 46b of ground members 46.
  • Cantilevered grounding arms 48f of cover 48 engage the top edges of ground contacts 78.
  • the memory cards are provided with downwardly depending stabilizing projections 80 which are positioned into the front stabilizing notches 38i of side wall sections 38 and into forward stabilizing notch 40c of center wall section 40 to prevent the memory cards from shifting in the connector.
  • Each memory card also includes a notch 82 in each opposite side thereof near the front end of the memory card for receiving latch arms 48e of cover 48 and/or latch arms 60 (Figs. 5 and 6) of metal side wall sections 38'.
  • FIG. 9 shows a single, larger memory card 66A for insertion into memory card connector 30 mounted on circuit board 54.
  • the larger memory card has a recessed mating end 76 with arrays of contacts for engaging the two groups of terminals 42.
  • memory card 66A has ground contacts 78 on opposite sides thereof, as well as stabilizing projections 80 and notches 82.
  • FIG. 10 simply shows that memory card connector 30 can be used to receive a single reduced-size memory card 66 and does not necessarily have to receive two reduced-size cards.
  • the connector can receive one or two reduced-size cards or one larger size card.
  • FIG. 11 shows that cover 48 has a large recessed, downwardly projecting area 84 which also can be seen in FIG. 4.
  • a pair of downwardly projecting protrusions 86 are formed on the underside of the cover for insertion into a pair of recesses 88 in the top surfaces of memory cards 66. The interengagement of these protrusions and recesses fix the positions of the memory cards and help prevent the cards from shifting around when fully inserted into the connector.
  • FIG. 12 shows a separate suction member 90 which provides an enlarged flat suction surface 44A to accommodate an appropriate vacuum pick-up head for manipulating and placing the housing and/or connector.
  • the separate suction member is adhesively bonded to the top of the rear terminal-mounting section 34 of housing 32.
  • FIG. 13 shows that the larger memory card 66 A has a groove 94 in the underside thereof to accommodate the positioning rib 40e of center wall section 40 or the positioning ribs 40e' of the metal center wall section 40'.
  • FIG. 14 shows that the reduced-size memory cards 66 are provided with elongated notches 96 to accommodate the positioning rib 40e of center wall section 40 or the positioning ribs 40e' of metal center wall sections 40'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur de carte mémoire. Ledit connecteur comprend un boîtier isolant présentant une section de montage de bornes définissant un réceptacle destiné à recevoir une extrémité d'accouplement d'une carte mémoire. Au moins une partie de paroi latérale longitudinale s'étend vers l'avant depuis une extrémité de la partie arrière. Une pluralité de bornes conductrices est montée sur la partie de montage de bornes arrière du boîtier pour venir en prise avec des contacts appropriés au niveau de l'extrémité d'accouplement de la carte mémoire lorsqu'elle est insérée dans le réceptacle. Une surface d'aspiration plate et élargie est présente sur le dessus du boîtier isolant. La surface d'aspiration présente une taille suffisamment importante pour recevoir une tête de préhension par aspiration appropriée permettant de manipuler et de placer le boîtier.
PCT/US2004/016217 2003-05-21 2004-05-21 Connecteur de carte memoire Ceased WO2004105455A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03256978.5 2003-05-21
CN 03256978 CN2617049Y (zh) 2003-05-21 2003-05-21 电子卡连接器

Publications (3)

Publication Number Publication Date
WO2004105455A2 true WO2004105455A2 (fr) 2004-12-02
WO2004105455A3 WO2004105455A3 (fr) 2005-03-24
WO2004105455B1 WO2004105455B1 (fr) 2005-05-26

Family

ID=33459851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/016217 Ceased WO2004105455A2 (fr) 2003-05-21 2004-05-21 Connecteur de carte memoire

Country Status (2)

Country Link
CN (1) CN2617049Y (fr)
WO (1) WO2004105455A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20090086A1 (it) * 2009-04-09 2010-10-10 Sauro S R L Struttura di componente per circuiti elettronici tipo connettore, morsettiera e simile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122947A1 (de) * 1981-03-31 1982-10-07 Feraton Anstalt, 9494 Schaan Waermetauscher
US5514002A (en) * 1994-04-28 1996-05-07 Hon Hai Precision Ind. Co., Ltd. Electrical connector assembly and contacts therein
GB2294678A (en) * 1994-10-20 1996-05-08 Thomas & Betts Corp Methods of enabling articles to be transported
JP3014608U (ja) * 1994-12-07 1995-08-15 モレックス インコーポレーテッド コネクタの搬送用吸着部材

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20090086A1 (it) * 2009-04-09 2010-10-10 Sauro S R L Struttura di componente per circuiti elettronici tipo connettore, morsettiera e simile

Also Published As

Publication number Publication date
WO2004105455B1 (fr) 2005-05-26
CN2617049Y (zh) 2004-05-19
WO2004105455A3 (fr) 2005-03-24

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