Emi shield with connector cover extension

Information

  • Patent Grant
  • 6333860
  • Patent Number
    6,333,860
  • Date Filed
    Monday, March 20, 2000
    24 years ago
  • Date Issued
    Tuesday, December 25, 2001
    23 years ago
Abstract
A communications card includes a housing formed by a top cover and a lower cover panel. The top cover is constructed from a generally non-conductive material and the lower cover panel is constructed from a conductive material. A substrate is disposed within the housing and a conductive panel is positioned between the substrate and the top cover. The conductive panel overlies at least a portion of the substrate, and the conductive panel and lower cover panel are electrically connected to ground when the communications card is inserted into a host device in order to decrease the electromagnetic radiation emitted by the communications card. Preferably, the communications card conforms to the standards established for a PCMCIA Type III card. Additionally, the communications card may include a modular jack with a main body portion having a top surface, a bottom outer surface and a front surface. A receptacle is disposed entirely within the front surface of the modular jack such that no portion of a corresponding plug extends through either the top surface or the bottom surface of the main body portion of the modular jack.
Description




BACKGROUND OF THE INVENTION




1. The Field of the Invention




The present invention generally relates to electronic devices such as computers. More specifically, the present invention relates to communications cards that allow electronic devices and communications systems to be interconnected.




2. Description of Related Art




Portable computers and other electronic equipment frequently use communications cards to allow electrical communication to be established between electronic devices or to allow electronic devices to be connected to communication systems. The communications cards are typically located internally within the computer or electronic equipment and the cards are relatively small in size. These communications cards, for example, are commonly used with modems, fax/modems, Local Area Network (LAN) adaptors and cellular telephone equipment.




Conventional communications cards are often constructed according to the Personal Computer Memory Card International Association (PCMCIA) guidelines, which set forth the physical specifications and electronic architecture of the cards (also known as PC cards), and the ports or sockets into which the cards are inserted. The PCMCIA guidelines define three types of cards and sockets for support of electronic equipment. For instance, PCMCIA standards require all PC cards to have the same length and width (roughly the size of a credit card), and each card includes a connector to allow it to be connected to the host device. In particular, according to the known PCMCIA standards, PC cards have a length of 85.6 mm (3.4 inches), a width of 54.0 mm (2.1 inches), and a height of 3.3 mm (0.1 inches), 5.0 mm (0.2 inches) or 10.5 mm (0.4 inches) depending upon if the card is a Type I card, Type II card or Type III card, respectively. Type I PC cards are typically used for memory devices such as read only memory (RAM), flash memory or static random access memory (SRAM). Type II PC cards are generally used with input/output (I/O) devices such as data/fax modems, LANS and mass storage devices. Type III PC cards are used for devices whose components are thicker and require additional space. The PCMCIA guidelines also define corresponding types of sockets. Type I sockets support only Type I cards, Type II sockets support Type I and II cards, and Type III sockets supports all three types of cards.




A conventional PC card has a generally rectangular shaped body with a top surface, bottom surface, opposing sidewalls, front end and a rear end. The terms “front” and “rear” are used in reference to the direction in which the PC card is inserted into the receiving socket in the electronic device. A substrate such as a printed circuit board is disposed within the PC card and the substrate includes various electronic components that provide the necessary circuitry to perform the intended functions of the PC card. The front end of the PC card includes a 68-pin connector that is used to connect the card to the electronic device, such as a notebook or lap top computer.




In greater detail, when a conventional PC card is inserted into the socket in the electronic device, the 68-pin connector is connected to a corresponding receptacle or receiving portion. The receiving portion is typically a multiple pin connector that allows electrical communication to be established between the PC card and the electronic device. The receiving pin connector is typically sized and configured to closely receive the 68-pin connector and create an interference or friction engagement between the 68-pin connector and the receiving pin connector. This friction or interference fit helps hold the PC card within the socket and prevent the unintentional removal of the PC card from the socket.




The top surface of the 68-pin connector is freely exposed to allow the connector to be inserted into the receiving pin connector. Specifically, the top cover does not extend over the upper surface of the 68-pin connector because of the tight tolerances and close fit of the 68-pin connector within the receiving pin connector. Disadvantageously, because the top surface of the 68-pin connector is exposed, it can be easily damaged, scratched, dented and otherwise abused. Significantly, if the 68-pin connector is broken or severely damaged, it typically cannot be repaired and the entire PC card must be replaced. Additionally, the 68-pin connector does not provide any shielding or protection from electromagnetic radiation. Thus, the connector may cause electromagnetic interference (EMI), for example, with the host electronic device, the PC card itself, or other nearby electronic equipment.




In addition, conventional PC cards often have a gap between the body of the card and the connector because the top cover of the card does not extend over the upper surface of the 68-pin connector. Disadvantageously, this gap allows dirt, foreign objects and other materials to get inside the body of the card, and these foreign objects may damage the sensitive electronic components located inside the card. In severe instances, the foreign objects may short circuit the card or otherwise cause the card to fail. Additionally, the gap creates a potential electrical hazard because if electrically conducting material is inserted into the gap and it contacts components or wires with the card, this may create an electric shock danger.




SUMMARY OF THE INVENTION




A need therefore exists for a communications card that overcomes the above-identified disadvantages and problems. In particular, there is a need for a communications card that protects the connector from damage, prevents foreign matter from entering the card and decreases the emission of electromagnetic radiation.




One aspect of the communications card is a conductive panel, such as a metal shield, that decreases the emission of electromagnetic radiation from the card. Significantly, decreasing the emission of electromagnetic radiation helps prevent electromagnetic interference (EMI) with the host device, the card itself and nearby electronic components. Preferably, the conductive panel is electrically connected to a conductive portion of the housing of the communications card, such as the lower panel. The conductive portion of the housing desirably provides a ground path to the host device when the communications card is inserted into the host device.




Another aspect of the communications card is a metal shield located between the top cover of the communications card and a substrate positioned within the housing of the card. The shield preferably covers substantially the entire substrate, but it could cover only a portion of the substrate. The shield may also contain one or more openings or cutouts, for example, to accommodate various components located on the substrate. The metal shield preferably has sufficient thickness and other desirable characteristics to prevent or decrease the emission of electromagnetic radiation from the communications card.




A further aspect of the communications card is a shield with an extension that extends over the upper surface of the connector located at the front end of the communications card. The extension is preferably sized and configured to allow the communications card to be connected to a conventional receiving pin connector located in the socket of the host device. Desirably, the extension has a thickness generally equal to or less than about 0.008 to 0.010 inches (0.2032 to 0.254 mm) so as not to interfere with the connection of the communications card and the receiving pin connector. The connector of the communications card, however, can be connected to any suitable connector and the receiving pin connector does not have to be located in a socket of an electronic device.




Yet another aspect of the present invention is communications card with a protective panel that covers the upper surface of the connector of the communications card. The protective panel helps prevent damage, such as dents and scratches, to the upper surface of the connector. Advantageously, the protective panel may also prevent the connector from being broken.




A still further aspect of the communications card is a panel that fills the gap between the top cover and the connector located at the front end of the communications card. This panel helps prevent foreign objects and other matter from entering the body of the card, which may avert damage or failure of the card. Additionally, this panel helps prevent an electric shock hazard because electrically conducting materials cannot be inserted through the gap and be electrically connected to wires or other components located within the card.




Yet another aspect of the communications card is an insulator that is positioned between the conductive panel and the substrate and/or the conductive panel and the connector. This insulator helps prevent undesirable electrical communication between the conductive shield and the substrate or connector. the insulator is preferably a dielectric material, such as insulative tape, that insulates to about 1.5 kilovolts.




Advantageously, the conductive panel for the communications card is relatively simple to manufacture and assemble. For example the conducter panel and the inner surface of the top cover preferably have the same general configuration and these components can be simply and easily connected. Additionally, the conductive panel is desirably constructed as an integral, one-piece component that performs multiple functions such as protecting the connector, decreasing EMI and preventing foreign objects from entering the communications card. The panel, however, may also be constructed from multiple components that are sized and configured to perform the desired functions. Further, the shield is preferably electrically connected to a metal lower portion of the housing of the communications card to provide a ground path to the host device when the card is inserted into the host device.




Further aspects, features and advantages of the present invention will become apparent from the detailed description of the preferred embodiments that follows.











BRIEF DESCRIPTION OF THE DRAWINGS




The appended drawings contain figures of preferred embodiments of the conductive panel for a communications card. The above-mentioned features of the communications card, as well as other features, will be described in connection with the preferred embodiments. These illustrated embodiments, however, are only intended to illustrate the invention and not limit the invention. The drawings contain the following figures:





FIG. 1

is a perspective view of a host device such as a conventional computer, illustrating a communications card in accordance with a preferred embodiment of the present invention inserted into a slot or socket in the host device;





FIG. 2

is a perspective view of a communications card in accordance with another preferred embodiment of the present invention;





FIG. 3

is a perspective view of the top cover and conductive panel of the communications card shown in

FIG. 2

, illustrating the top cover as being generally transparent;





FIG. 4

is an exploded perspective view of the communications card shown in

FIG. 2

, illustrating the top cover, conductive panel and substrate;





FIG. 5

is a perspective view of a portion of the communications card shown in

FIG. 2

, illustrating the conductive panel;





FIG. 6

is a cross-sectional side view along lines


6





6


of the communications card shown in

FIG. 2

; and





FIG. 7

is an exploded perspective view of a portion of the communications card shown in

FIG. 2

, illustrating a portion of the top cover and lower cover, with a portion of the communications card cut away.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




The present invention involves a conductive panel or protective shield for a communications card. The principles of the present invention, however, are not limited to conductive panels and protective shields for communications cards. It will be understood that, in light of the present disclosure, the conductive panels and protective shields disclosed herein can be successfully used in connection with other types of electrical equipment, devices and communications systems.




Additionally, to assist in the description of the conductive panels and protective shields for communications cards, words such as top, bottom, front, rear, right and left are used to describe the accompanying figures. It will be appreciated, however, that the present invention can be located in a variety of desired positions—including various angles, sideways and even upside down. A detailed description of the conductive panels and protective shields for communications cards now follows.




As seen in

FIG. 1

, a communications card


10


according to a preferred embodiment of the present invention is inserted into a corresponding socket or slot in a host device such as a computer


12


. The computer


12


can be any type of a wide variety of computers includes personal, portable, laptop, notebook, palm, personal data assistants (PDAS), etc. One skilled in the art will appreciate, however, that the host device can be any suitable type of electronic device.




The communications card


10


, as best seen in

FIG. 2

, preferably conforms to the Type III PCMCIA standards with a length of 85.6 mm (3.4 inches), a width of 54.0 mm (2.1 inches), and a height of 10.5 mm (0.4 inches), but it will be appreciated that the card may conform to other PCMCIA standards. The communications card


10


may also have other desired sizes and configurations that are suitable for its intended purpose, and the card does not have to conform to any specific standards or guidelines.




The communications card


10


includes a top cover


14


with an upper surface


16


, right side


18


, left side


20


, front end


22


and rear end


24


. The communications card


10


also includes a lower cover panel


26


disposed upon the lower surface


28


of the card. Additionally, the communications card


10


includes a connector


30


located at the front end


22


of the card to allow the card to communicate with the host device


12


. In particular, the connector


30


allows the communications card


10


to be removably coupled to a corresponding receiving portion or pin connector (not shown) located within the slot or socket in the host device


12


. The receiving pin connector is preferably constructed according to the known PCMCIA standards, but it may have other suitable configurations. It will be appreciated that other suitable types of connectors, such as serial, parallel, SCSI, or other types of ports, may also be used to connect the communications card


10


to the computer


12


.




As seen in

FIG. 4

, a printed circuit board (PCB) or substrate


32


is disposed within the communications card


10


and it includes logic circuitry and various components


34


that are used to perform the desired functions of the communications card


10


. The substrate


32


also includes an upper surface


36


and a plurality of electrically conductive traces


38


that are disposed proximate a forward end


40


of the communications card


10


. The traces


38


, which preferably have a standard spacing or pitch, are connected to the various components


34


and circuitry of the substrate


32


. The traces


38


are also connected to the connector


30


, which is preferably a 68-pin connector. The 68-pin connector


30


includes a molded plastic body


42


with an upper surface


44


, lower surface


46


, right side


48


, left side


50


, front surface


52


and rear surface


54


. The front surface


52


of the connector


30


includes upper and lower transverse rows of longitudinally extending openings (not shown) that each contain a contact for receiving a corresponding pin from the receiving pin connector. Extending from the rear surface


54


of the connector


30


are contact fingers


56


that are connected to associated conductive traces


38


on the upper surface


36


of the substrate


32


. Preferably, in accordance with the PCMCIA standards, the 68 pins of the connector


30


are arranged in two rows of 34 contacts each, with the pin at the end of each row (corresponding to pin numbers 1, 34, 35 and 68) being connected to ground. It will be understood, however, that the connector


30


may have any suitable size, configuration and number of pins.




As seen in

FIGS. 2 and 4

, located at a rear end


60


of the communications card


10


is a modular jack


62


with receptacles


64


and


66


that are sized and configured to receive conventional RJ series plugs. Preferably, the receptable


64


is sized and configured to receive a RJ-11 connector plug and the receptacle


66


is sized and configured to receive a RJ-45 connector plug, but it will be appreciated that the receptacles can be sized and configured to receive any desired RJ series plug or any other suitable type of plug. A preferred embodiment of the receptacles


64


and


66


are described in assignee's copending U.S. patent application Ser. No. 09/528,331, entitled Modular Jack for Type III PCMCIA Cards which is hereby incorporated by reference in its entirety. The receptacles


64


and


66


may also be illuminated as shown in assignee's copending U.S. Patent application Ser. No. 09/528,330, entitled Illuminated Electrical Jack System, which is hereby incorporated by reference in its entirety.




The rear end


60


of the card


10


also includes a Sub-D connector


68


for connection to a cellular telephone or other suitable electronic equipment, but other types of connectors such as a pin, BNC or DIN connectors may also be connected to the communications card. Additionally, another modular jack


62


or additional receptacles of suitable sizes and configurations may also be attached to the rear portion of the communications card


10


.




In greater detail, the modular jack


62


includes a main body portion


70


with an upper surface


72


, a lower surface


74


, a right side


76


, a left side


78


, a front surface


80


and a rear surface


82


. As shown in

FIG. 2

, the upper surface


72


of the modular jack


62


is generally aligned and substantially planar with the upper surface


16


of the top cover


14


of the communications card


10


. Alternatively, the upper surface


16


of the top cover


14


may be configured to cover the upper surface


72


of the modular jack


62


. The lower cover panel


26


of the card


10


preferably encloses the lower surface


74


of the modular jack


62


and is generally aligned with a lip located proximate the front surface


80


of the modular jack, as seen in FIG.


6


. On the other hand, the lower surface


74


of the modular jack


62


may be generally aligned with the lower cover panel


26


of the communications card


10


. In any of these configurations, however, the height of the modular jack


62


is the generally equal to or less than the height of the communications card


10


. Additionally, as shown in the accompanying figures, the receptacles


64


and


66


are located entirely in the front surface


80


of the modular jack


62


, and the upper surface


72


and lower surface


74


of the modular jack


62


are solid, planar surfaces that do not include any openings or cutouts to receive the biased clip of a RJ type connector.




The modular jack


62


is releasably attached to the top cover


14


of the communications card


10


by a pair of guide rails


84


and


86


that are located on the right and left sides


76


,


78


of the jack, respectively. These guide rails


84


,


86


have a dovetail shape and are received within corresponding slots


88


,


90


located in the top cover


14


of the communications card


10


. The guide rails


84


,


86


preferably have a friction or interference fit with the corresponding slots


88


,


90


to securely attach the modular jack


62


to the top cover


14


of the communications card


10


. Because the modular jack


62


is securely attached to the top cover


14


of the communications card


10


, forces associataed with inserting and removing connector plugs from the receptacles are primarily transmitted to the top cover and not the substrate


32


.




In a preferred embodiment, the main body portion


70


of the modular jack


62


has a height of about 10.5 mm measured from the upper surface


72


to the lower surface


74


, and the receptacles


64


,


66


have a height of about 10.1 mm measured from an uppermost surface


92


to a lower surface


94


of the receptable. The modular jack


62


also includes a rearwardly extending connector


96


projecting from the rear surface of the jack that is used to electrically connect the jack to the substrate


32


. A preferred embodiment for connecting the modular jack


62


to the substrate


32


is disclosed in assignee's copending U.S. patent application Ser. No. 09/528,501, entitled Card Edge Connector for a Modular Jack, which is hereby incorporated by reference in its entirety. One skilled in the art will readily appreciated that the modular jack


62


can have a variety of different sizes and configurations depending, for example, upon the type of connectors, intended use of the communications card, size and shape of the communications card, and specific applications of the communications card.




One or more contact pins


98


are located within the receptacles


64


,


66


of the modular jack


62


. Typically, four or six contact pins


98


are used in conjunction with an RJ-11 connector and eight contact pins are used in conjunction with an RJ-45 connector, but any suitable number of contact pins may be utilized. Preferred embodiments of the contact pins


98


are disclosed in assignee's copending U.S. patent application Ser. No. 09/528,500, entitled Contact Pin Design for a Modular Jack, which is hereby incorporated by reference in its entirety. It will be appreciated that the contact pins may be manufactured in any of a wide variety of designs and configurations in order to be used with specific applications or connectors. Thus, it will be understood that the contact pins may also have other suitable shapes and configurations.




As best seen in

FIGS. 3 and 4

, the communications card


10


includes the top cover


14


and a conductive panel


100


. The top cover


14


is constructed of a dielectric or non-conductive material such as plastic. Preferably, the top cover


14


is constructed of plastic material such as polycarbonate or styrene. More preferably, the top cover


14


is constructed of acrylonitrile butadiene styrene (ABS) because it is easily machined and has high rigidity, impact strength and abrasion resistance, but it will be appreciated that other suitable materials with the desired characteristics may also be used to construct the top cover. Additionally, the top cover


14


may be constructed of a transparent material as shown in

FIG. 3

, or a translucent or opaque material as shown in FIG.


4


.




The conductive panel


100


of the communications card


10


is constructed from a conductive material such as metal to prevent or decrease the emission of electromagnetic radiation. In particular, as discussed below, the conductive panel


100


is electrically connected to the lower cover panel


26


of the communications card


10


to provide the desired EMI protection for the card. The conductive panel


100


is preferably constructed from carbon or stainless steel, but it can be constructed from other suitable materials such as copper, aluminum, etc. The conductive panel


100


may be formed, for example, by pressing or stamping sheet metal into the desired shape.




As best seen in

FIGS. 4 and 5

, the conductive panel


100


has a main body portion


102


that is sized and configured to fit within the inner surface of the top cover


14


. In greater detail, the conductive panel


100


includes a generally planar top surface


104


that is configured to contact or be positioned proximate the inner surface of the top cover


14


. The conductive panel


100


may include one or more openings


106


that are configured to receive corresponding projections extending from the inner surface of the top cover


14


to position or attach the panel to the top cover. Preferably, the openings


106


are sized and configured to receive to projections to create a friction or interference fit, but the conductive panel may also be attached to the top cover by other suitable means such as adhesives, mechanical connectors, ultrasonic bonding, heat stakes, comolding and the like.




The conductive panel


100


also includes a right portion


108


, a left portion


110


and a central portion


112


that are located towards the front end


40


of the card


10


. The conductive panel


100


also includes a right rear portion


114


and a left rear portion


116


located proximate the rear end


60


of the card


10


. In addition, the conductive panel


100


includes cutouts


118


,


120


to accommodate various components


34


positioned on the upper surface


36


of the substrate


32


. These components


108


-


120


are sized and configured to conform to the inner surface of the top cover


14


so that the conductive panel


100


can abut or be positioned proximate the inner surface of the top cover. Additionally, these components


108


-


120


may be sized and configured such that the card


10


has the desired EMI characteristics. Advantageously, the conductive panel


100


and the top cover


14


may be integrally constructed, simultaneously constructed, constructed using the same equipment or otherwise manufactured such that the conductive panel fits within the inner surface of the top cover.




As best seen in

FIG. 4

, the conductive panel


100


is disposed between the inner surface of the top cover


14


and the upper surface


36


of the substrate


32


. The conductive panel


100


preferably covers substantially the entire inner surface of the top cover


14


or upper surface


36


of the substrate


32


, but the panel may only cover a portion of the top cover or substrate. Further, the conductive panel may be constructed from one or more components that cover the desired portions or the inner surface of the top cover or substrate.




As best seen in

FIGS. 5 and 6

, the conductive panel


100


also includes an extension


130


that is connected to the central portion


112


of the panel and it covers the upper surface


44


of the body


42


of the connector


30


. In particular, the extension includes a first section


132


, which is positioned generally perpendicular to the upper surface


36


of the substrate


32


and a second section


134


that is generally positioned parallel to the upper surface


36


of the substrate


32


. The second section


134


has a generally rectangular configuration with a front end


136


, which is positioned proximate the front end


40


of the communications card


10


, and a rear end


138


. Although not shown in the accompanying figures, the second section


134


desirably includes one or more downwardly curved or angled sections that are sized and configured to deflect or deform when the second section abuts the upper surface


44


of the connector


30


. This provides for a secure engagement between the section section


134


of the extension


130


and the top surface


44


of the connector


30


.




The second section


134


of the extension


130


extends generally the entire length of the connector


40


and covers the majority of the upper surface


44


of the connector to protect the connector from damage. The extension


130


also covers both the connection of the connector


40


to the substrate


32


and the upper surface


44


of the connector to reduce the emission of electromagnetic radiation. Additionally, the extension


130


desirably fills the gap between the connector


30


and the top cover


14


to prevent foreign objects and material from entering the card


10


.




The extension


130


includes an edge


140


that is positioned proximate the front surface


52


of the connector


30


. The front end


136


of the extension


130


is folded back upon itself at the 180° angle so that the forward edge


140


has a double thickness. Advantageously, because the edge


140


is folded over upon itself, the edge has no sharp edges or protrusions. Additionally, this provides the edge


140


with additional strength and helps prevent bending of the edge. The edge


140


preferably has a thickness of between about 0.008 to about 0.010 inches (0.203 to 0.254 mm) or smaller to allow the connector


30


to be electrically coupled to a receiving pin connector located in the slot of the host device


12


. Thus, the edge


140


covers and protects the connector


30


, while allowing the card


10


to be used in connection with standard pin connectors used in connection with electronic devices such as computers.




Located proximate the front end


136


of the generally rectangular section


134


is a first pair of tabs


140


that extend outwardly from the extension


130


. The first pair of tabs


140


are inserted into corresponding slots or openings (not shown) in the top cover


14


to attach or position the extension


130


to the top cover. The extension


130


also includes a second pair of tabs


142


that are positioned proximate the rear end


138


of the extension. The second pair of tabs


142


extend downwardly and are electrically connected to the lower cover panel


26


. The lower cover panel


26


is typically connected to ground when the card


10


is inserted into the host device


12


. Thus, a ground path from the conductive panel


100


to the lower cover panel


26


and to the host device


12


is established when the card


10


is inserted into the host device.




As shown in

FIGS. 5 and 6

, an insulator


150


is attached to the extension


130


. The insulator


150


is preferably attached to the generally rectangular section


134


of the extension


130


and it extends inwardly into the body of the card


10


. The insulator


150


is used to electrically insulate a portion of the conductive panel


100


from the connector


30


. Desirably, the insulator


150


is positioned to insulate the rear portion


54


of the connector


30


from the conductive panel


100


to prevent electrical communication between the connector and the conductive panel. The insulator


150


may also be used to electrically insulate desired portions of the substrate


32


and/or components


34


from the conductive panel


100


. The insulator


150


is preferably constructed from a dielectric material, such as non-conductive tape, that insulates to at least about 1.5 kilovolts. The insulator


150


, however, could have different characteristics and properties depending, for example, upon the desired use of the card


10


.




As seen in

FIG. 7

, the lower cover panel


26


of the communications card


10


is connected to the top cover


14


by one or more tabs


152


. In particular, the top cover


14


includes one or more grooves or openings


154


disposed in the lower surfaces


28


of the right and left sidewalls


18


,


20


and the tabs


152


are sized and configured to be inserted into these openings. The tabs


152


include barbs


156


that provide for easy insertion of the tabs into the corresponding openings


154


, but the barbs also include edges


158


that engage the side walls


160


of the openings as the tabs are inserted to prevent the unintended removal of the lower cover panel


26


from the top cover


14


.




The lower cover panel


26


is also preferably secured to the top cover


14


by ultrasonic bonding of the tabs


152


to the openings


154


. Desirably, because the top cover


14


is preferably constructed of plastic and the lower cover panel


26


is constructed from metal, the ultrasonic bonding causes the plastic to flow about the barbs


156


to securely connected the top cover and lower cover panel. Additionally, ultrasonic energy may be applied to the top cover


14


or lower cover panel


26


while inserting the tabs


152


into the openings


154


to allow the barbs


156


to engage the softened plastic. It will be appreciated that while ultrasonic bonding is preferred, any known energy for causing the plastic to flow may be used. Further, while the energy may be applied in any known manner, it is preferred that the energy be applied to the lower cover panel


26


because it is a good conductor of energy and applying energy directly to the top cover


14


may blemish or damage the top cover.




Although this invention has been described in terms of a certain preferred embodiment, other embodiments apparent to those of ordinary skill in the art are also within the scope of this invention. Accordingly, the scope of the invention is intended to be defined only by the claims that follow.



Claims
  • 1. A communications card for insertion into a receiving slot in an electronic device, the communications card comprising:a top cover including an upper surface, a right sidewall and a left sidewall that form a portion of a housing, the housing including an inner surface and an outer surface, the top cover being constructed from a generally non-conductive material; a substrate disposed within the housing formed by the top cover, the substrate including a top surface, a bottom surface, a front end and a rear end; a connector attached to the front end of the substrate, the connector being sized and configured to connect the communications card to the electronic device; a conductive panel disposed between the substrate and the inner surface of the top cover, the conductive panel covering at least a portion of an upper surface of the connector, the conductive panel being sized and configured to decrease the emission of electromagnetic radiation from the communication card; and a lower cover panel attached to the top cover, the lower cover panel being constructed of a conductive material and being electrically connected to the conductive panel.
  • 2. The communications card as in claim 1, wherein the conductive panel overlies a substantial portion of the substrate in order to decrease the electromagnetic radiation emitted by the communications card.
  • 3. The communications card as in claim 1, wherein the conductive panel and lower cover panel are electrically connected to ground when the communications card is inserted into the electronic device in order to decrease the electromagnetic radiation emitted by the communications card.
  • 4. The communications card as in claim 1, wherein the conductive panel is attached to the inner surface of the top cover.
  • 5. The communications card as in claim 1, wherein the conductive panel has generally the same size and configuration as at least a portion of the inner surface of the top cover.
  • 6. The communications card as in claim 1, wherein the communications card conforms to the standards established for a PCMCIA Type III card.
  • 7. The communications card as in claim 1, further comprising a insulator disposed between an inner surface of the conductive panel and the upper surface of the substrate, the insulator being sized and configured to prevent electrical communication between the conductive panel and the substrate.
  • 8. The communications card as in claim 1, further comprising a modular jack for receiving a RJ-type connector plug attached to the top cover panel, the modular jack including a main body portion with a top surface, a bottom surface and a front surface; and further comprising a receptacle disposed entirely within the front surface of the modular jack such that no portion of a corresponding RJ-type connector plug extends through either the top surface or the bottom surface of the main body portion of the modular jack.
  • 9. The communications card as in claim 8, wherein the main body portion of the modular jack has a height measured from the top surface to the bottom surface that is generally equal to or less than about 10.5 mm.
  • 10. The communications card as in claim 8, further comprising an upper inner surface of the receptacle and a lower inner surface of the receptacle that are separated by a distance that is generally equal to or less than about 10.1 mm.
  • 11. A Type III PCMCIA card that is sized and configured to be electronically connected to a host device, the card comprising:a dielectric top cover, the top cover including an inner surface and an outer surface; a substrate including an upper surface, a lower surface, a front end and a rear end; a connector attached to the front end of the substrate, the connector being sized and configured to connect the card to the host device; and a conductive panel having generally the same size and configuration as at least a portion of the inner surface of the top cover, the conductive panel being disposed between the upper surface of the substrate and the inner surface of the top cover.
  • 12. The Type III PCMCIA card as in claim 11, further comprising a lower cover panel that is attached to the top cover, the lower cover panel being constructed of a conductive material and being electrically connected to the conductive panel.
  • 13. The Type III PCMCIA card as in claim 11, wherein the conductive panel overlies a substantial portion of the substrate in order to decrease the electromagnetic radiation emitted by the communications card.
  • 14. The Type III PCMCIA card as in claim 11, wherein the conductive panel and lower cover panel are electrically connected to ground when the communications card is inserted into the electronic device in order to decrease the electromagnetic radiation emitted by the communications card.
  • 15. The Type III PCMCIA card as in claim 11, further comprising a insulator disposed between an inner surface of the conductive panel and the upper surface of the substrate, the insulator being sized and configured to prevent electrical communication with the conductive panel.
  • 16. The Type III PCMCIA card as in claim 11, further comprising a modular jack attached to the substrate, the modular jack having a height generally less than or equal to about 10.5 mm, the modular jack including a front face with an opening.
  • 17. The Type III PCMCIA card as in claim 11, further comprising a modular jack attached to the top cover panel, the modular jack including a main body portion with a top surface, a bottom surface and a front surface; and further comprising a receptacle disposed entirely within the front surface of the modular jack such that no portion of a corresponding plug extends through either the top surface or the bottom surface of the main body portion of the modular jack.
  • 18. The Type III PCMCIA card as in claim 17, wherein the main body portion of the modular jack has a height measured from the top surface to the bottom surface that is generally equal to or less than about 10.5 mm.
  • 19. The Type III PCMCIA card as in claim 17, further comprising an upper inner surface of the receptable and a lower inner surface of the receptacle that are separated by a distance that is generally equal to or less than about 10.1 mm.
  • 20. A communications card comprising:a dielectric top cover, the top cover including an inner surface and an outer surface; a conductive panel disposed proximate the inner surface of the top cover, the conductive panel including an upper surface and a lower surface; a substrate disposed proximate the lower surface of the conductive panel, the substrate including an upper surface, a lower surface, a front end and a rear end; a connector attached to the front end of the substrate, the connector being sized and configured to connect the card to the host device; and a conductive lower cover panel disposed proximate the lower surface of the substrate, the conductive lower cover panel being electrically connected to the conductive panel.
  • 21. The communications card as in claim 1, wherein the conductive panel closes at least a portion of a gap between the connector and the top cover.
  • 22. The communications card as in claim 1, wherein the conductive panel provides protection for the upper surface of the connector from foreign object damage.
  • 23. The communications card as in claim 1, wherein the conductive panel closes substantially the entire gap between the connector and the top cover.
  • 24. The communications card as in claim 1, wherein the conductive panel covers substantially the entire upper surface of the connector.
  • 25. A Type III PCMCIA card that is sized and configured to be electronically connected to a host device, the card comprising:a dielectric top cover, the top cover including an inner surface and an outer surface; a substrate including an upper surface, a lower surface, a front end and a rear end; a connector attached to the front end of the substrate, the connector being sized and configured to connect the card to the host device; and a conductive panel having generally the same size and configuration as at least a portion of the inner surface of the top cover, the conductive panel being disposed between the upper surface of the substrate and the inner surface of the top cover, the conductive panel including an extension that covers at least a portion of an upper surface of the connector; and a lower cover panel attached to the top cover, the lower cover panel being constructed of a conductive material and being electrically connected to the conductive panel; wherein the conductive panel and lower cover panel are electrically connected to ground when the communications card is inserted into the host device in order to decrease the electromagnetic radiation emitted by the communications card.
  • 26. The communications card as in claim 25, wherein the conductive panel and the extension close at least a portion of a gap between the connector and the top cover.
  • 27. The communications card as in claim 25, wherein the extension provides protection for the upper surface of the connector from foreign object damage.
  • 28. The communications card as in claim 25, wherein the conductive panel and the extension close substantially the entire gap between the connector and the top cover.
  • 29. The communications card as in claim 25, wherein the extension covers substanially the entire upper surface of the connector.
  • 30. The communication card as in claim 25, further comprising a insulator disposed between an inner surface of the conductive panel and the upper surface of the substrate, the insulator being sized and configured to prevent electrical communication between the conductive panel and the substrate.
  • 31. The communications card as in claim 25, further comprising a modular jack for receiving a RJ-type connector plug attached to the top cover panel, the modular jack including a main body portion with a top surface, a bottom surface and a front surface; and further comprising a receptable disposed entirely within the front surface of the modular jack such that no portion of a corresponding RJ-type connector plug extends through either the top surface of the bottom surface of the main body portion of the modular jack.
  • 32. The communications card as in claim 31, wherein the main body portion of the modular jack has a height measured from the top surface to the bottom surface that is generally equal to or less than about 10.5 mm.
  • 33. The communications card as in claim 31, further comprising an upper inner surface of the receptacle and a lower inner surface of the receptacle that are separated by a distance that is generally equal to or less than about 10.1 mm.
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