WO1996037091A1 - Rigid pcmcia frame kit - Google Patents
Rigid pcmcia frame kit Download PDFInfo
- Publication number
- WO1996037091A1 WO1996037091A1 PCT/US1996/004618 US9604618W WO9637091A1 WO 1996037091 A1 WO1996037091 A1 WO 1996037091A1 US 9604618 W US9604618 W US 9604618W WO 9637091 A1 WO9637091 A1 WO 9637091A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame kit
- frame
- pcmcia
- cover member
- pair
- Prior art date
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
- H05K5/026—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces
- H05K5/0265—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces of PCMCIA type
- H05K5/0269—Card housings therefor, e.g. covers, frames, PCB
-
- 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
- H05K5/026—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces
- H05K5/0265—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces of PCMCIA type
- H05K5/0273—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces of PCMCIA type having extensions for peripherals, e.g. LAN, antennas
Definitions
- This invention is directed to an improved PCMCIA frame kit that is easy to assemble, while providing structural integrity to the frame kit and protection to the contained planar electronic device, such as a conventional memory card.
- PC cards containing external memory and data to be used in computer processes are known.
- the cards come in standard types defined by the Personal Computer Memory Card International Association (PCMCIA) .
- PCMCIA Personal Computer Memory Card International Association
- Such cards are housed in a memory card holder or frame kit which comprises a casing or frame made of an insulting material for receiving the printed circuit board, metal shielding covers, and at least one connector, typically referred to an "I/O" connector.
- the connector is provided on one end of the casing or frame for interfacing the memory card, and particularly the printed circuit board contained in the casing, to the computer equipment to which the card is mated.
- the connector is designed to extract the contents of the memory stored on the printed circuit board and to bus data to and from an outside environment, which also usually comprises a computer or other electronic equipment.
- PC cards are generally interchangeable and can be used with many different machines and electronic components. Because the PC cards are interchangeable, they undergo a significant amount of abuse when transported, interfaced and mated to the different computers and electronic equipment which use them.
- 5,339,222 there is disclosed a memory card holder that provides structural integrity to the assembly by the use of a pair of interfitting metal sheet-like cover members. Additionally the invention thereof provides continuous shielding against distortion of data signals between the PC or memory card and the I/O connector.
- U.S. Patent No. 5,397,857 there is disclosed a memory card package which includes a pair of stamped and formed metal covers, each secured to a plastic frame element.
- the plastic frame element is injection molded around a plurality of fingers which extend from the periphery of the respective cover member. Further, the plastic frame element extends beyond the plane of the metal cover to expose a perimeter.
- the prior art devices suffer from a lack of torsional rigidity.
- the problem to be solved by the present invention is that torsional twisting must be reduced and the device must be simple to manufacture.
- This invention relates to a stable and rigid PCMCIA frame kit for receiving a memory card, as known in the art, for electrical engagement with electronic equipment, such as a computer.
- the frame kit consists of a pair of matable, shielding cover members, where each cover member is integrally molded to a dielectric frame upon which the memory card is seated.
- each frame including at least a pair of side rails, where the pair of side rails on one cover member includes plural, circular, upstanding pins having a predetermined diameter, and the pair of side rails on the other cover member includes a like plurality of holes.
- the cross section of the holes exhibit a multi-sided configuration with the diametrical distance between opposing corners being slightly greater than predetermined diameter of the pins, and the diametrical distance between opposing sides is slightly less than the predetermined diameter.
- each cover member includes pins along one side and sockets or holes along the opposite side. By flipping one cover member relative to the other, mating can be achieved, where the pins of one cover member are caused to engage corresponding sockets or holes in the other.
- FIGURE l is a perspective view of a preferred embodiment of a PCMCIA frame kit incorporating the features of this invention.
- FIGURE 2 is an exploded perspective view of the pair of cover members forming the frame kit of Figure 1, illustrating further, for example, details of the lower cover member along an interfacing edge surface;
- FIGURE 3 is an exploded perspective view similar to Figure.2, but showing details of a complementary interfacing edge surface of the upper cover member, for example, and a prepositioned memory card with I/O connector for receipt in the frame kit;
- FIGURE 4 is a partial, longitudinal sectional view taken along line 4-4 of Figure 2, showing the I/O connector end, or open end of the frame kit;
- FIGURE 5 is a transverse, sectional view taken along line 5-5 of Figure 2;
- FIGURE 6 is a partial, longitudinal sectional view similar to Figure 4, but showing the respective cover members in the assembled condition of Figure 1;
- FIGURE 7 is a transverse, sectional view similar to Figure 5, but showing the respective cover members in the assembled condition of Figure 1;
- FIGURE 8 is an enlarged, partial sectional view illustrating the preferred cross-sectional shape of the interfitting pin and socket elements along the respective interfacing edge surfaces of the cover members, prior to press fit engagement;
- FIGURE 9 is an enlarged, partial sectional view similar to Figure 8, but showing the section through an exemplary press fit pin and socket elements;
- FIGURE 10 is a sectional view similar to Figure 4, but showing an alternate embodiment with the use of a pair of hermaphroditic cover members to form the rigid PCMCIA frame kit of this invention;
- FIGURE 11 is a sectional view similar to Figure 5, but showing the alternate embodiment of Figure 10; and FIGURE 12 is a partial transverse sectional view showing a complementary groove for receiving a rib to further stabilize the assembly against lateral movement.
- FIG 1 illustrates a preferred customized frame kit 10 incorporating the integrity enhancing features of this invention.
- the frame kit 10 comprises a lower cover member 12 and an upper cover member 14, where such cover members intermate to form the frame kit of Figure 1.
- the lower cover member 12 illustrated as the lower component in Figures 2, 4 and 5, it will be seen that such member comprises a peripheral dielectric frame 16 and a stamped and formed metal shield 18 injection molded to said frame to form the integral cover member 12.
- the metal shield 18 is over only a portion of the frame kit 10, with the balance thereof consisting of a longitudinal extension 20.
- the dielectric frame 16 defines the peripheral extent of the assembly.
- the dielectric frame 16, about the periphery includes a mating surface 22 having plural, spaced-apart circular pins 24, where the diameter thereof has a preset diametrical dimension. Further, disposed along such mating surface 22, between certain adjacent said pins 24, are plural, longitudinally oriented ribs 26, the function of which will be apparent in the discussion later.
- the metal shield 18 includes an upturned edge 28 within the dielectric frame 16, where the base 30 thereof is exposed outside the frame side 32.
- the upper cover member 14 depicted as the top component in Figures 4 and 5, is also illustrated in Figure 3, but from the underside thereof to show mating detail.
- the upper cover member 14 comprises a peripheral dielectric frame 40 and a stamped and formed metal shield 42 injection molded to the frame 40 to form the integral cover member 14.
- the metal shield 42 is over a portion of the frame 40, from the I/O connector end 44 to a midpoint or transition area 46. Beyond the transition area 46 is a dielectric extension 48 which is complementary to and matable with the longitudinal extension 20 on the lower cover member 12.
- Such extensions 20, 48 when fully mated define a cavity therebetween for receiving a portion of the memory card 50 therein, note Figure 3.
- the flange 52 is formed within a formed channel 56 of the metal shield 42. With the channel end 60 reversely bent 180°, thereby exposing such end interiorly, a metal- to-metal contact is provided with base 30 of the lower cover member 12 in the assembled condition, see Figure 7.
- Opening into the lateral mating surface 54 are plural sockets holes 62, one hole aligned with said upstanding circular pin 24 of the lower cover member 12, note Figure 5. While such pins 24 are circular in configuration, having a preset diametrical dimension, the holes 62 may be characterized as multi-sided in cross-section, where a preferred shape is a hexagon.
- the enlarged sectional view in Figure 8 illustrates the relationship between a pin 24 and its complementary (hexagonal) hole 62. What appears to be an impossible task to mate same, is quite feasible considering the respective dimensions of the pin and hole, and the use of a plastic or dielectric material that yields or deforms under the application of pressure.
- a suitable dielectric material for the respective frames is a liquid crystal polymer (LCP) or nylon.
- the pins 24, at the free end thereof are slightly tapered to present a reduced diameter 64 and thereby avoid stubbing on the initial mating of a pin 24 and its corresponding hole 62.
- the relationship between the pin diameter and reduced diameter of the end is depicted by the concentric dotted lines in Figure 8.
- the cross-sectional relationship of the pin 24 to its corresponding hole 62 is as follows: where the diameter of the pin is a preset dimension (A) and, the diametrical distance between opposing corners of a pair of adjacent walls of the hole is (B) , then B > A. Further, where the diametrical distance between midpoints of opposing walls is (C) ,- then A > C.
- Figure 9 is a sectional view of the mated or press fit arrangement of Figure 8.
- each matable cover member 70, 72 includes a wrap around metal member 74 along one longitudinal side, a mating surface 76, and a plurality of aligned multi-sided holes 78, preferably hexagonal in cross-section, opening into the mating surface.
- each cover member 70, 72 includes a dielectric side rail 80 having an edge 82 of the metal shield insert molded therewithin, where a base 82 of the metal shield is exposed for metal-to-metal contact by the opposing or mating cover member, a mating surface 84, and plural, complementary circular pins 86 upstanding from the mating surface 88. It will be understood that the dimensions and preferred shapes and cross-sections of the respective pins and holes are as discussed above relative to the embodiment of Figures 2- 9, and will not be repeated here.
- a rib 26 and complementary groove 94 may be provided, where the rib seats within such groove.
- a resistance to lateral movement of one cover member to the other is achieved.
- the pins in the respective holes about the frame kit can be sonic welded utilizing what is called a shear joint.
- laterally projecting ribs or protuberances 96 may be incorporated about the frame periphery of one cover member for mating, by snap engagement, with complementary notches 98 located in the other cover member, where localized sonic welding, as known and practiced in the art, can be performed.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96911570A EP0823194A1 (en) | 1995-05-17 | 1996-04-04 | Rigid pcmcia frame kit |
JP08534810A JP2000514240A (en) | 1995-05-17 | 1996-04-04 | Rigid PCMCIA frame kit |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/443,144 | 1995-05-17 | ||
US08/443,143 | 1995-05-17 | ||
US08/443,144 US5574628A (en) | 1995-05-17 | 1995-05-17 | Rigid PCMCIA frame kit |
US08/443,143 US5510959A (en) | 1995-05-17 | 1995-05-17 | High density PCMCIA frame kit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996037091A1 true WO1996037091A1 (en) | 1996-11-21 |
Family
ID=27033423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/004618 WO1996037091A1 (en) | 1995-05-17 | 1996-04-04 | Rigid pcmcia frame kit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0823194A1 (en) |
JP (1) | JP2000514240A (en) |
WO (1) | WO1996037091A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5785633A (en) * | 1996-11-27 | 1998-07-28 | Mondo S.P.A. | Play apparatus with a ball-like body and a saddle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890197A (en) * | 1987-03-31 | 1989-12-26 | Mitsubishi Denki Kabushiki Kaisha | Memory card housing |
US5175913A (en) * | 1991-06-28 | 1993-01-05 | Mackie Wayne H | Connector for use in connecting planar objects |
US5339222A (en) * | 1993-04-06 | 1994-08-16 | The Whitaker Corporation | Shielded printed circuit card holder |
WO1995002499A1 (en) * | 1993-07-15 | 1995-01-26 | Jim Farquhar | Pcmcia standard memory card package |
-
1996
- 1996-04-04 WO PCT/US1996/004618 patent/WO1996037091A1/en not_active Application Discontinuation
- 1996-04-04 JP JP08534810A patent/JP2000514240A/en active Pending
- 1996-04-04 EP EP96911570A patent/EP0823194A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890197A (en) * | 1987-03-31 | 1989-12-26 | Mitsubishi Denki Kabushiki Kaisha | Memory card housing |
US5175913A (en) * | 1991-06-28 | 1993-01-05 | Mackie Wayne H | Connector for use in connecting planar objects |
US5339222A (en) * | 1993-04-06 | 1994-08-16 | The Whitaker Corporation | Shielded printed circuit card holder |
WO1995002499A1 (en) * | 1993-07-15 | 1995-01-26 | Jim Farquhar | Pcmcia standard memory card package |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5785633A (en) * | 1996-11-27 | 1998-07-28 | Mondo S.P.A. | Play apparatus with a ball-like body and a saddle |
Also Published As
Publication number | Publication date |
---|---|
EP0823194A1 (en) | 1998-02-11 |
JP2000514240A (en) | 2000-10-24 |
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