WO2003073202A2 - Guide de carte a circuits electroniques - Google Patents

Guide de carte a circuits electroniques Download PDF

Info

Publication number
WO2003073202A2
WO2003073202A2 PCT/US2003/004842 US0304842W WO03073202A2 WO 2003073202 A2 WO2003073202 A2 WO 2003073202A2 US 0304842 W US0304842 W US 0304842W WO 03073202 A2 WO03073202 A2 WO 03073202A2
Authority
WO
WIPO (PCT)
Prior art keywords
card
chassis
circuit
removable
slot
Prior art date
Application number
PCT/US2003/004842
Other languages
English (en)
Other versions
WO2003073202A3 (fr
Inventor
Edward Levy
Steffen Hagene
Original Assignee
Maple Optical Systems, Inc.
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 Maple Optical Systems, Inc. filed Critical Maple Optical Systems, Inc.
Priority to AU2003219794A priority Critical patent/AU2003219794A1/en
Publication of WO2003073202A2 publication Critical patent/WO2003073202A2/fr
Publication of WO2003073202A3 publication Critical patent/WO2003073202A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/185—Mounting of expansion boards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/184—Mounting of motherboards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/18—Packaging or power distribution
    • G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
    • G06F1/186—Securing of expansion boards in correspondence to slots provided at the computer enclosure
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1424—Card cages

Definitions

  • the invention relates generally to chasses configured to receive removable circuit cards and, more particularly, to a device and method to allow a chassis to accommodate smaller circuit cards configured to perform individual functions so that, during removal of the circuit card, fewer circuits are shut down.
  • mounting chassis are used for attaching circuit cards, also referred to as a printed circuit boards (PCBs). These cards can include electronic components and circuits, optical couplings and components, and other devices.
  • PCBs printed circuit boards
  • the chassis typically have a plurality of slots for receiving and housing circuit cards.
  • the slots are designed to receive circuit cards that are the full length of the slots.
  • each slot is able only hold one circuit card, and the chassis is limited to accommodate circuit cards of only one size.
  • each in order to utilize the limited space of each card, each must be configured to accommodate more circuits, resulting in more connections.
  • the invention provides a method and apparatus for reconfiguring an existing chassis to accommodate smaller circuit cards.
  • the invention enables multiple various sized circuit cards to be placed in one slot of a chassis housing contained in electrical equipment, such as computer servers.
  • electrical equipment such as computer servers.
  • Such devices and related systems can benefit from incorporating the invention by allowing the removal of a single small circuit that needs to be replaced or modified, without the need to remove multiple, possibly unrelated or separable circuits.
  • the card guide is configured to divide the slot into a plurality of spaces when installed to accommodate more than one circuit card.
  • a card guide can be installed in the middle of a slot, dividing the slot in two, one space occurring above the guide and one below the guide.
  • the card guide contains one card mount for receiving a circuit card placed in the space above it and another card mount for receiving a circuit card placed in the space below it. Any multiple of circuit cards may be accommodated.
  • the number of card guides to be placed in the slot depends on the number and sizes of circuit cards that are being placed in that slot.
  • the invention further provides removable chassis plates having card mounts attached to them.
  • the chassis plates are aligned in parallel creating slots for receiving circuit cards and are removable.
  • the card mounts divide the slot into multiple spaces to accommodate circuit cards.
  • the chassis plates include card mounts having one groove for receiving a circuit card placed below it and another groove for receiving a circuit card placed above it.
  • Figure la illustrates a perspective view of a chassis for electronic equipment in accordance with the invention
  • Figure lb illustrates a side plan view of the chassis of Figure 1;
  • Figure 2a illustrates a side plan view of a circuit card guide in accordance with the invention
  • Figure 2b illustrates an opposite side plan view of the circuit card guide
  • Figure 2c illustrates an end view of the circuit card guide
  • Figure 2d illustrates an opposite end view of the circuit card guide
  • Figure 3 illustrates a plan view of a plate for receiving the circuit card guide
  • Figures 4a-4b illustrate end views of the circuit card guide during the installation process
  • FIGS 5a-5b are illustrations of the attachment process of the mounting pins to the key way in accordance with the invention.
  • FIG. 6 is a perspective view of a mounting chassis 600 for electrical equipment in accordance with the alternative embodiment
  • Figure 7 is a perspective view of a removable chassis plate
  • Figure 8 illustrates the spring-clip bracket from a bottom to top view
  • FIG. 9 illustrates the final installed position of the chassis plate 604.
  • the invention provides a method and apparatus for placing multiple circuit cards of various sizes in a single slot of a chassis housing contained in electrical equipment.
  • Examples include computer servers, optical networking servers, and other applications where the accommodation of multiple circuit cards is preferable over only a few cards.
  • Such systems would benefit by allowing the removal of a single small circuit that needs to be replaced or modified, without the need to remove multiple, possibly unrelated or separable circuits to do so.
  • a conventional mounting chassis of such electronic equipment may include plates, which are arranged to create slots to hold circuit cards.
  • Conventional devices have slots that can only accommodate a circuit card that has the same length as the slot.
  • the cards are referred to as full-slot length circuit cards.
  • One embodiment of the invention consists of card guides that are placed in a chassis slot to divide the slot into multiple spaces. For example, a user may place one card guide in a chassis slot, dividing the slot into two spaces, one above the guide and one below the guide, each having a length of half of the original slot. Each space may now house a separate circuit card.
  • the card guide contains a card mount for receiving a circuit card placed in the space above it and a card mount for receiving a circuit card placed in the space below it. Any number of card guides may be placed in a slot to accommodate any number and size of circuit cards within that slot.
  • a card guide may be made out of metallic material such as die-cast aluminum, magnesium or zinc.
  • the card guide may have a unitary body with no movable parts or may include special fasteners with moving parts.
  • the card guide may also include card mounts for receiving the circuit card, as well as a device for attaching to the chassis slot, such as attachment pins.
  • each chassis slot contains a plurality of keyways for accepting the attachment pins attached to or formed with the chassis card guide.
  • the card guide to install the card guide, it is rotated until it can fit into the slot. The guide is then inserted at an angle until the attachment pins line up with the keyways. The guide is then rotated back into its back into place. As the guide is rotated into place, the pins engage the key way and lock into place in a catching mechanism, such as a detent. To remove the card guide, a manual force must be applied to the card guide to unlock it from the detent. It is then rotated until it can be removed from the chassis length.
  • the circuit card guide may then be installed or removed manually without special skills, keeping the installation time of the card guide to a minimum.
  • the circuit card has two ends, a connection end that plugs into the electronic equipment port and another end that attaches to a faceplate.
  • the circuit card is configured to be seated between two card guides. The circuit card may then be slid along the mounts of the card guides until the connection end of the card plugs into the chassis port. The circuit card may be then secured to the card guide by a snap on clip or fastener, or by manually tightening a fastener, such as a screw, to fasten the circuit card faceplate to an aperture in the card guide.
  • Each circuit card may be attached to the chassis, independently from other circuit cards. Thus, a circuit card may be removed from the chassis without having to remove all of the circuit cards in that slot.
  • removable plates are slid into the chassis having one or more card mounts to create lengths or slots in which an electronic circuit card may be placed.
  • the plates may be similar in function with respect to installing the plates mentioned in the previous embodiment.
  • the plates are removable and may contain a plurality of card mounts.
  • the card mounts divide the slot into multiple spaces to accommodate a plurality of circuit cards. For example, if a plate with an attached card mount is placed in the chassis, the slot is now divided into two spaces, one above the card mount and one below the card mount. Each space can now house one circuit card.
  • the card mount contains one groove for receiving a circuit card placed below it and a groove for receiving a circuit card placed above it.
  • the number of card mounts placed on a chassis plate will depend on the number and sizes of circuit cards that are desired in a single slot. Plates that contain card mounts are used when placing less than the full-slot length circuit cards.
  • the embodiment further includes a guide bracket for seating the plate as well as the circuit card in the chassis and a spring-clip bracket.
  • the spring-clip bracket locks the plate into its final position.
  • the guide bracket and the spring-clip bracket may be included in a unitary body made out of plastic or another suitable material.
  • the brackets may optionally be configured to have no movable parts, making them relatively inexpensive to produce than conventional methods.
  • a removable plate may be seated on the guide bracket and translated through notches located on the mounting bracket. The plates are translated until they are locked into their final place by the spring-clip. To remove the plate, the spring-clip is pressed and the plate is released from the clip, allowing the plate to be translated out of the chassis.
  • Both embodiments of the invention provide a method for accommodating multiple circuit cards in one chassis slot. This may create significant advantages for the user.
  • the electronic equipment can be customized to the desired preferences needed. Previously, the electronic equipment was limited to using one type of circuit card.
  • the chassis can accommodate cards of different sizes and functions. Therefore, the user has a greater variety of cards with more options to choose from. Accordingly, the flexibility of the electronic equipment may be greatly increased.
  • the user may need to replace a circuit on a particular card.
  • the entire circuit card must be disabled if any one circuit is to be replaced.
  • the invention further allows the chassis to accommodate smaller circuit cards. Therefore, fewer circuits are placed on each card. For example, four smaller circuit cards may be placed in a particular chassis slot, each performing one function, rather than one full-slot length circuit card performing four functions.
  • there are fewer connections that need to be disabled during the removal process making the removal and installation process faster and simpler, with less downtime.
  • by having fewer connections disabled there is less risk of data being lost during the replacement of a circuit card.
  • FIG. 1 A a perspective view of a mounting chassis 100 in accordance with the invention is shown.
  • the mounting chassis 100 is configured to hold electronic circuit cards 102 to be connected with other circuitry inside such electronic equipment.
  • the mounting chassis 100 includes plates 104 to which the circuit cards 102 attach.
  • the plates 104 may be made out of a metallic material and are generally placed in parallel to each other.
  • the spaces or the lengths 106b can only hold circuit cards 102 with the same dimensions of the chassis length 106. Therefore, each chassis length 106 would only accommodate one circuit card 102.
  • the chassis 100 would be limited in the variety of circuit cards 102 that can be used. According to the invention, however, more than a single circuit card may be placed in any one slot.
  • Length 106a is an open slot illustrated with no electronic circuit cards 102 placed in it. Length 106a further does not contain any card guides 108 and therefore can only accommodate one full-slot length circuit card 102. Length 106b contains one full-slot length circuit card 102. As illustrated, a card guide 108, in accordance with the invention, is placed in a length 106c and attaches to two plates 104 as illustrated. The card guide 108 may be placed in the center of chassis length 106c. The card guide 108 divides the length 106c into two spaces, one above the circuit card and one below the circuit card. Each space may now hold an individual circuit card 102 with a half-slot length.
  • a circuit card 102 of half-slot length is placed in the top space of length 106c and the bottom space is left open, and ready to accommodate a half-slot length circuit card, or divided into two more spaces by placing another circuit card guide 108 in the space.
  • the card guide 108 provides a means for each length 106 to hold a plurality of circuit cards 102 of different sizes in a single chassis length 106.
  • Length 106d is housing four circuit cards 102 of quarter-slot length. In order to accommodate four circuit cards, there must be three circuit card guides 108 (not shown) placed in the length 106d. For illustration contrast, 106e does not have any circuit cards 102 or any circuit card guides 108.
  • FIG. IB illustrates a front view of the chassis 100 of Figure la.
  • the chassis 100 includes two mounting plates 110 and 112 on which the plates 104 are mounted.
  • the chassis 100 may be attached to some larger electronic equipment with the use of an angle bracket 114.
  • the angle bracket 114 incorporates a fastener such as a nut and bolt fastener to secure the chassis to the larger electronic equipment.
  • Another feature that may optionally be included in the chassis is a fastening device 116, such as a nut and bolt fastener.
  • the fastening device 116 may be located at the top of each length attached to the chassis plate 104. Circuit cards 102, mounted in each length 106, may be secured to the chassis 100 using the fastening device 116.
  • Other fastening devices may include a removable snap-fit fastener or other fasteners designed for convenient and economic use (not illustrated).
  • card mounts 118 and 120 placed in each length 106.
  • a first card mount 118 is attached mounting plate 110 while the second card mount 120 is attached to mounting plate 112.
  • the card mounts 118 and 120 may be a unitary body with a groove or a slot for receiving the circuit card 102.
  • a full-length circuit card 102 is seated between card mount 120 and card mount 118.
  • the circuit card 102 may then be slid along the grove of the card mounts 120 and 118, until it plugs into a chassis port (not illustrated).
  • the invention may act as a substitute for a card mount 120 when installing circuit cards 102 that are less than full length.
  • FIG 2A illustrates a side plan view of a card guide 108 in accordance with the invention.
  • the card guide 108 may be made out of a metallic material, such as die-cast aluminum, magnesium, zinc, or other suitable material.
  • the card guide 108 may be a unitary body with no movable parts.
  • the card guide 108 may include one or more mounting pins 200 for attaching the circuit guide to the chassis 100.
  • the illustration provides an example of a card guide 108, which uses four pins 200 to attach to the adjacent chassis plate 104 further described in Figures 5A-5B.
  • a card mount 202 for receiving the circuit card 102.
  • the card mount 202 may be a slot or a groove that runs from one end of the card guide 108 to the other.
  • the circuit card 102 may be seated on the card mount 202 and translated along the grove during the mounting process.
  • the circuit card 102 is translated along the groove of the card mount 202 until the connection end of the circuit card plugs into the chassis port.
  • spacers 204 may be included in the circuit card guide 108 for accurately positioning the card guide.
  • the spacers 204 may be located on one side of the card guide 108 and may align flush against the plate 104 to ensure that the card guide 108 is properly positioned.
  • FIG 2B illustrates an opposite side plan view of the card guide 108. Illustrated in Figure 2b are the attachment pins 200, and the spacers 204.
  • a second card mount 206 included in the card guide 108 is a second card mount 206.
  • This card mount 206 is similar in function to the aforementioned card mount 202 ( Figure 2a), located on the opposite side of the card guide 108.
  • the card mount 206 may be a slot or a grove that runs from one end to another, as is the first card mount 202.
  • This card mount 206 is used for receiving circuit cards 102 mounted directly below it. The top of the circuit card 102 may be translated along the card mount 206 during the installation process.
  • Figure 2C illustrates an end view of the card guide 108. Illustrated in Figure 2C, are the attachment pins 200 and the first and second card mounts 202 and 206 for receiving electronic circuit cards 102. Further, the embodiment as depicted in Figure 2c illustrates a card guide 108 may include an aperture 208 for receiving a fastener, such as a screw. The aperture 208 is used to fasten the circuit card 102 to the card guide 108. However, one of ordinary skill in the art would certainly recognize that various other forms of securing the circuit card might be used.
  • Figure 2d illustrates an end view (opposite to that of Figure 2c) of the card guide 108. Illustrated in Figure 2D, are the attachment pins 200 and the first and second card mounts 202 and 206.
  • the installation process of a circuit card 102 less than full-slot length is as follows.
  • the circuit card 102 has two ends, a connection end that plugs into the electronic equipment port and an end attached to a faceplate.
  • the circuit card 102 may be seated, connection end first (not shown), in between circuit card guides 108.
  • the circuit card 102 slides along the card mounts 202 and 206 of the respective card guides 108, until the connection end of the card is plugged into the chassis port.
  • the circuit card 102 may be then secured to the card guide 108 by tightening a fastener, such as a screw, which fastens the circuit card faceplate (not shown) to the card guide aperture 208.
  • a fastener such as a screw
  • Figure 3 illustrates a plan view of a plate 104 for receiving the card guide 108.
  • the plate 104 as mentioned above may be made out of a metallic material such as steel.
  • the plate 104 may include a plurality of keyways 300 for receiving the attachment pins 200. The attachment process of the attachment pins 200 to the keyway 300 is further described in Figures 5A-5B.
  • Figures 4A-4B illustrate end views of the card guide 108 during the installation of the card guide 108 to the mounting chassis 100.
  • the card guide 108 is rotated until it can be inserted into a length 106 located between two plates 104.
  • the card guide 108 is then inserted at that angle until the attachment pins 200 align with its designated keyway 300.
  • the card guide 108 is rotated back into position, illustrated in Figure 4B.
  • the attachment pins 200 engage the keyways 300 further described in Figures 5A-5B.
  • the card guide 108 is then pulled towards the entrance end of the chassis length 106 to lock the attachment pins 200 into the keyway 300.
  • FIG 5A-5B are illustrations of the attachment process of the mounting pins 200 to the keyway 300 located on a plate 104 of Figure 3.
  • the keyways 300 may be slots cut out of the plate 104 in the shape of an "L".
  • the keyway 300 may include a long portion 500, a short portion 502 and a detent 504.
  • the card guide is rotated until the guide 108 can be inserted into the length 106.
  • the guide 108 is then inserted until the attachment pins are aligned with the keyholes 300.
  • the attachment pin 200 travels down the long-portion 500 of the keyway 300, illustrated in Figure 5a.
  • the attachment pin 200 is translated along the short portion 502 of the keyway 300. It is slid along the short portion 502 until the detent 504 catches the pin 200, therefore, locking the pin 200 and the card guide 108 into place.
  • the pin is unlocked from the detent 504. This is achieved by manually placing a force on the card guide towards the port end of the chassis length 106.
  • the detent 504 releases the pin 200, thus, allowing the card guide 108 to be translated along the short portion 502 of the keyway 300.
  • the card guide 108 is then rotated until the card guide 108 can be removed from the chassis length 106.
  • FIG. 6 is a perspective view of a mounting chassis 600 of an alternative embodiment.
  • the mounting chassis 600 similar to the mounting chassis 100 described in the previous embodiment holds circuit cards 602 to be connected with other circuitry inside such electronic equipment.
  • the chassis 600 includes plates 604.
  • the plates 604 may be placed in parallel to each other creating a space or a length 606 for receiving circuit cards 602 in between two plates 604.
  • the space or length 606 can only hold circuit cards 602 with the same dimensions of the chassis length.
  • each chassis length 606 can only accommodate one circuit card.
  • Circuit cards 602, as illustrated are less than full-slot length.
  • the circuit cards 602 have two ends, a connection end (not shown) and a faceplate 624. Also included on the faceplate may be a handle 626.
  • the handle 626 is used for pulling the circuit card 602 during the removal process.
  • the handle 626 may have another function as a holding connection for wires.
  • Chassis plates 604 are removable and may contain card mounts 608.
  • the card mounts 608 divide the length 606 into multiple spaces. Therefore, the removable plates 604 with card mounts 608 provide the ability for each length 606 to hold a plurality of circuit cards 602 of different sizes.
  • the alternative embodiment increases the flexibility of the electronic equipment.
  • the chassis 600 is not limited to circuit cards 602 of one size, and therefore can utilize a wider variety of circuit cards 602 which may increase the different functions the electronic equipment can now perform.
  • the alternative embodiment allows the chassis 600 to hold more circuit cards 602 in the same amount of space.
  • each circuit card 602 may perform fewer functions. This may be useful when removing and replacing a circuit card 602. Before the removal process, the functions on each circuit card 602 must be shut down. By having fewer functions being performed by each card 602, the user does not have to shut down as many functions when removing the card 602. Thus, the removal process may be more efficient and may result in an economic benefit.
  • the guide bracket 610 is used in conjunction with the spring-clip bracket 612 to seat the chassis plate 604.
  • the spring-clip bracket 612 locks the chassis plate 604 into place in its final installed position, keeping the plate secure during times of non-installation.
  • the guide bracket further seats the circuit card 102, which in its final installed position will plug into the chassis port 618.
  • the guide bracket 610 illustrated in Figure 6 may be used to seat both the removable chassis plate 604 and the circuit card 602 in accordance with the alternative embodiment.
  • the guide bracket 610 may be a unitary body made of plastic or any other suitable material. There are no movable parts on the bracket 610 therefore keeping the price and difficulty of producing the bracket relatively low.
  • Located on the guide bracket 610 may be a plurality of notches 614 aligned in multiple rows.
  • the bracket 610 contains two rows of notches 614. These notches 614 may be uniformly spaced in a particular row to follow the spacing plan of the removable plates and thus creating lengths or spaces 606 for accepting the circuit card 602.
  • the plate 604 may be seated on the guide bracket 610 and translated through the corresponding notches 614 in that row until it is locked into place by the spring-clip bracket 612.
  • the notches 614 may help align the removable plates 604 during the installation/removal process. Further, the notches 614 may serve to help stabilize the plate 604 in its final installed position.
  • the card mount 616 may be used to seat the circuit card 602.
  • the card mount 616 may be a groove, depression, indentation etc. in the bracket 614 and need not be any attached structure.
  • a circuit card 602 is seated and translated on the card mount 616 until the connection end of the circuit card 602 plugs into the chassis port 618.
  • the guide bracket 614 may also contain apertures 620 for receiving a fastener, such as a nut and bolt fastener, which may be used to attach to the chassis 600. The user may install the circuit card guide without special skills, tools, or additional hardware.
  • FIG 7 is a perspective view of a removable chassis plate 604.
  • the removable chassis plates 604 may be made of a metallic material and may be placed in parallel to each other.
  • the removable chassis plates 604 may have card mounts 608 attached to them.
  • the card mounts 608 are used to receive circuit cards 602 of various sizes.
  • Card mounts 608 may be a unitary body made out of plastic or another suitable material.
  • the card mount 608 may include a base 702 that attaches to the chassis plate 604.
  • the base 702 may lay flat against the chassis plate.
  • a fastener, such as an adhesive, epoxy, hot glue etc. may be used to attach the base 702 to the chassis plate 604.
  • the card mount 608 may further include a groove or slot 704 for receiving the electronic circuit card 602.
  • the groove 704 may run along the entire length of the card mount 608. During installation a circuit card 602 less than full slot length, the card is seated between two card mounts 608 and then translated along the grove 704 until it plugs into a chassis port 618 ( Figure 6).
  • a cutout 706 is included on the chassis plate 604 to lock the chassis plate 604 into its final installed position.
  • the chassis plate 604 may be translated over the spring-clip bracket 612.
  • the cutout 706 catches the spring clip bracket 612 and creates a method for securing the plate.
  • the bracket 612 after being received by the cutout 706 impedes the translation of the chassis plate 604 in either direction.
  • Figure 8 illustrates the spring-clip bracket 612 from a bottom to top view.
  • the spring-clip bracket 612 is used for locking a removable chassis plate 604 in its final installed position.
  • the bracket 612 may be a unitary body made of plastic or any other suitable material. Again, the bracket 612 contains no movable parts keeping the cost and difficulty in producing the bracket relatively low.
  • the bracket 612 may contain a plurality of apertures 802 that align with apertures 620 located on the guide bracket 610. These apertures 802, 620 may be used for receiving a fastener, such as a nut and bolt fastener, to secure the spring-clip bracket 640 to the guide bracket 614. Further, the bracket 612 may contain a plurality of spring-clips 804.
  • the spring-clips 804 may be uniformly spaced along the bracket 612. Each spring-clip 804 may contain a locking clip 806 and an unlocking clip 808. The locking and unlocking clips 806, 808 are used to secure and release the chassis plate 604 from the chassis 600.
  • FIG 9 illustrates the final installed position of the chassis plate 604.
  • the installation process of the chassis plate is as follows.
  • the chassis plate 604 may be translated through a notch 616 as well as over the locking clip 804, using the weight of the plate to bend the locking clip 804 back, and allowing the chassis plate 604 to continue along its installation path.
  • the final installation point is indicated by the cutout 706 on the chassis plate 604 ( Figure 7).
  • the chassis plate 604 no longer engages the locking clip 708. Since the weight of the plate 604 is no longer on the locking clip 806, the locking clip 806 springs back into its initial position and filling in the cutout 706.
  • the locking clip 806 now impedes the translation of the chassis plate 604 in either direction, locking the plate 604 into place.
  • the user may apply a force to the unlocking clip 808, such as pressing the clip with a finger.
  • the force may cause the spring clip 804 to bend back.
  • the locking clip 804 bends back as well, releasing the plate 604 and enabling the user to translate the plate 604 out of the chassis 600.
  • the remaining spring-clips 804 bend forward to keep the other chassis plates 604 from being released.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Telephone Set Structure (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

La présente invention a trait à un procédé et un appareil permettant la reconfiguration d'un châssis de montage existant d'un équipement électronique pour loger des cartes à de plus petite taille au sein des fentes à cartes. Par conséquent, l'utilisateur peut disposer d'une pluralité de cartes plus petites avec un circuit individuel dans une seule fente à carte plutôt que d'avoir une carte pleine longueur à laquelle sont reliées de nombreux circuits. Ainsi, un nombre moins important de connexions sont indisponibles lors du processus de retrait rendant le processus de retrait plus rapide et plus simple, avec moins de temps d'arrêt. En outre, grâce au nombre réduit de connexions indisponibles, moins de données sont perdues lors du remplacement. Dans un mode de réalisation, des guides de carte amovibles sont disposés au sein de la fente à carte en vue de la reconfiguration de la fente pour la réception de cartes à circuit de plus petite taille. Dans une variante, des plaques amovibles sont prévues avec des montures de cartes qui effectuent la reconfiguration de la fente en vue de la réception et du maintien des cartes à circuit de plus petite taille.
PCT/US2003/004842 2002-02-22 2003-02-21 Guide de carte a circuits electroniques WO2003073202A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003219794A AU2003219794A1 (en) 2002-02-22 2003-02-21 Electronic circuit card guide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35944002P 2002-02-22 2002-02-22
US60/359,440 2002-02-22

Publications (2)

Publication Number Publication Date
WO2003073202A2 true WO2003073202A2 (fr) 2003-09-04
WO2003073202A3 WO2003073202A3 (fr) 2003-12-18

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PCT/US2003/004842 WO2003073202A2 (fr) 2002-02-22 2003-02-21 Guide de carte a circuits electroniques

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AU (1) AU2003219794A1 (fr)
WO (1) WO2003073202A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100438730C (zh) * 2003-11-26 2008-11-26 西门子公司 网络设备的插槽转换结构

Citations (3)

* Cited by examiner, † Cited by third party
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US3733523A (en) * 1972-02-11 1973-05-15 Ampex Electronic circuit card cage
US6008995A (en) * 1997-08-19 1999-12-28 Ascend Communications, Inc. Card cage accommodating PC cards of different size
US6309237B1 (en) * 1999-03-22 2001-10-30 Tyco Electronics Logistics Ag System with printed circuit boards that can be plugged together

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733523A (en) * 1972-02-11 1973-05-15 Ampex Electronic circuit card cage
US6008995A (en) * 1997-08-19 1999-12-28 Ascend Communications, Inc. Card cage accommodating PC cards of different size
US6309237B1 (en) * 1999-03-22 2001-10-30 Tyco Electronics Logistics Ag System with printed circuit boards that can be plugged together

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Publication number Priority date Publication date Assignee Title
CN100438730C (zh) * 2003-11-26 2008-11-26 西门子公司 网络设备的插槽转换结构

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AU2003219794A1 (en) 2003-09-09
WO2003073202A3 (fr) 2003-12-18

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