WO2003092346A1 - Introducteur/extracteur de carte - Google Patents

Introducteur/extracteur de carte Download PDF

Info

Publication number
WO2003092346A1
WO2003092346A1 PCT/SE2002/000836 SE0200836W WO03092346A1 WO 2003092346 A1 WO2003092346 A1 WO 2003092346A1 SE 0200836 W SE0200836 W SE 0200836W WO 03092346 A1 WO03092346 A1 WO 03092346A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
subassembly
pivot axis
chassis
extractor
Prior art date
Application number
PCT/SE2002/000836
Other languages
English (en)
Inventor
Karl Gunnar Malmberg
Kaj Tommy NÄSSTRÖM
Original Assignee
Telefonaktiebolaget Lm Ericsson
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 Telefonaktiebolaget Lm Ericsson filed Critical Telefonaktiebolaget Lm Ericsson
Priority to PCT/SE2002/000836 priority Critical patent/WO2003092346A1/fr
Priority to AU2002307610A priority patent/AU2002307610A1/en
Publication of WO2003092346A1 publication Critical patent/WO2003092346A1/fr

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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
    • H05K7/1409—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by lever-type mechanisms

Definitions

  • the present invention relates to the injection/extraction of electronic subassemblies into and from a supporting host chassis, respectively, and specifically concerns the electrical connection of such subassemblies.
  • Such injecting/extracting devices conventionally consist of a base that is secured to a PCB or more commonly to a front plate of a PCB-module, and that pivotally supports a lever.
  • the lever in turn has an engagement means.
  • engagement means engages a corresponding abutment on the sub-rack to force the module into the fully connected position, overcoming the connector forces.
  • specific measures must be taken to secure appropriate grounding contact also between the board or board front and the back-plane.
  • Such contact is vital to the appropriate operation of the system, both with regard to the fact that grounding or earth-connecting of the module or board is mostly performed through this contact and to the fact that it is important to provide effective shielding against electromagnetic radiation that may otherwise disturb and interfere with the operation of adjacent modules.
  • This vital contact is normally secured by applying an appropriate contact force between mutually engaging contact surfaces of the board module and the back-plane. Such a contact force must be also be sufficient to compensate for any tolerances between the two elements and is normally generated by means of screw fasteners.
  • the screw fasteners are brought into engagement with nuts that are secured against rotation in a nut receiving channel attached to the sub-rack, and are tightened to apply the required contact force.
  • the fasteners at each side of the module must first be loosened and removed.
  • the invention overcomes the above problems in an efficient and satisfactory manner.
  • a general object of the invention is to provide a solution to the problem of facilitating the application of a contact force between an injected electronic subassembly and a receiving chassis, that is sufficient to secure the required grounding and electromagnetic shielding.
  • the above object is achieved by means of an electronic subassembly having an injecting/extracting device that during subassembly injecting operation thereof builds up a contact force between the subassembly and the chassis and that is locked in a subassembly injected position, to continuously apply said contact force in the locked position.
  • this is achieved by supporting a pivot axis of the injector/extractor lever so that it is displaceable against a biasing force and by providing integrated locking means securely locking the lever in the contact force application position.
  • the invention eliminates the need for separate fasteners to apply the contact force, thereby not only essentially facilitating the injection/extraction procedure but also simultaneously saving the cost of the prior art nut receiving channel in the chassis.
  • a floatingly supported pivot carries the lever, and a biasing means acts between the pivot and body, urging the pivot away from the board front.
  • the biasing means preferably applies continuos biasing force to the pivot to urge the latter towards a fixed end position.
  • the pivot is displaceably supported in elongate openings in the body.
  • the pivot is floatingly supported also in the lever, with the pivot being displaceable in elongate openings in the lever.
  • the openings in the lever are arranged so that they form an angle with the openings of the body.
  • complementary locking means are provided, being secured to the board front and to the lever respectively, and/or the biasing means is a leaf spring fixed to the body of the injector/extractor.
  • the body of the injector/extractor may preferably be an integral steel plate unit formed in one piece with a locking means and biasing means.
  • the lever is pivotal between an inactive position being disengaged from the formation on the chassis and an injection position where it engages the formation to fully inject the electronic subassembly into a connected position in the chassis. Thereby the subassembly is continuously pushed into its fully connected position by the biasing force when the lever is in its locked position.
  • Another object of the invention is to provide an improved electronic subassembly injecting/- extracting device that solves the problem of applying a contact force between a subassembly and a supporting chassis.
  • a further object of the invention is to provide an improved and very time saving method of applying a contact force between an electronic subassembly and a supporting chassis.
  • Fig. 1A is a partial schematic perspective view of a circuit board module according to the invention in a locked position in a supporting chassis;
  • Fig. IB is a plan view from one side of a first embodiment of an injector/extractor as employed on the board module of fig. 1 A and illustrated in an unlocked condition;
  • Fig. 2A is a side view of a body part of the injector/extractor illustrated in fig. IB;
  • Fig. 2B is a bottom perspective view of the body illustrated in fig. 2 A;
  • Fig. 2C is a top perspective view of the body illustrated in fig. 2 A;
  • Fig. 2D is a top plan view of the body illustrated in fig. 2 A;
  • Fig. 3 A is a side view of a lever part of the injector/extractor illustrated in fig. IB;
  • Fig. 3B is a bottom perspective view of the lever illustrated in fig. 3 A;
  • Fig. 3C is a top perspective view of the lever illustrated in fig. 3 A;
  • Figs. 4A is a partial cross section through a host chassis during injection of a an embodiment of a board module according to the invention, being provided with injectors/extractors as illustrated in fig. IB;
  • Figs. 4B is a partial cross section through the host chassis of fig. 4 A during a first stage of the actual locking of the board module to the chassis by means of the in- j ectors/extractors;
  • Figs. 4C is a partial cross section through the host chassis of fig. 4A after completed locking of the board module to the chassis by means of the injectors/extractors;
  • Fig. 5 A is a side view of a modified embodiment of an injector/extractor according to the invention illustrated in a locked condition;
  • Fig. 5B is a top perspective view of the lever of the injector/extractor illustrated in fig. 5A;
  • Fig. 5C is a top perspective view of the injector/extractor body illustrated in fig. 5 A;
  • Fig. 6 is an end view of a further embodiment of the injector/extractor lever
  • Fig. 7 is a side view of a modified embodiment of an injector/extractor body according to the invention.
  • Fig. 8 is a top plan view corresponding to fig. 2D illustrating a further embodiment of the invention, providing an alternative way of axially positioning the pivot pin;
  • Fig. 9 is a very schematic and partial view of a modified embodiment of the invention intended for use in an application where the board module "bottoms" at the backplane.
  • Fig. 1A schematically illustrates an embodiment of an electronic subassembly 20 according to the invention in a position where it has been injected into and locked in position in a supporting chassis 30.
  • the electronic sub- assembly 20 is a circuit board module 20 of the snap-in type commonly used in many areas, such as in the telecommunications industry.
  • an optional number of PCB-modules 20 are received in a supporting chassis 30.
  • the board modules are guided into position in the chassis 30 by separate board guides 34 (see fig. 4A-C) and are electrically connected at a backplane 39 (see fig. 9) of the supporting chassis.
  • the illustrated circuit board module 20 consists of a printed circuit board 21 having a board front 22 with connector sockets 23 secured to an outer edge 26 thereof. Adjacent each side edge 28 of the circuit board 21 the board front 22 carries a device 1 that is used to perform final insertion and initial ejection, respectively, of the board module 20 into and from the chassis 30, respectively. Such devices 1 are generally well known within the art and are referred to in this specification as injectors/extractors 1.
  • the electrical connection of the board module 20 is established by means of complementary connector parts 29, 35 supported on an inner edge 27 of the board module 20 and on the back-plane 39 (fig. 9) of the chassis, respectively. Such connectors 29, 35 are well known in several configurations within the art and have therefore not been illustrated in any detail in the drawings. Although fig. 1A illustrates a condition where the board module is fully injected and locked to the chassis, the connector pairs 29, 35 are illustrated in a separated position for reasons of clarity.
  • the board module 20 is inserted with its side edges 28 into the appropriate board guides 34 of the chassis
  • chassis 30 is a sub-rack of the kind that is used i.e. in telecom cabinets (not illustrated) and that commonly consists of steel plates 33 that are perforated to provide access for cooling air to the heat generating board modules 20.
  • chassis or sub-rack plates 33 that carry board guides 34 (see fig. 4A-C) is provided an elongate rail or bar 31 having an engagement means 32 in the form of a generally hook-shaped engagement formation 32 at its outer long side.
  • this engagement formation 32 on the rail 31 is to serve as a fixed abutment for the injectors/extractors 1 during their final injection of the board modules 20 to the fully connected position, as well as during their initial extraction from said connected position. This will be discussed further below in connection with figs. 4A-C.
  • the injectors/extractors 1 that are secured to the respective ends of the board front 22 of fig. 1 A are identical but are turned so that they face away from each other to engage the respective engagement formation 32 on opposite sub-rack plates 33.
  • An embodiment of such an injector/extractor or injecting/extracting device 1 of the invention is illustrated on an enlarged scale in fig. IB, and the constituent parts thereof are illustrated in figs. 2A-D and 3A-C.
  • the injecting/extracting device 1 is illustrated in an open non-active position (position A in the later discussed fig. 4A) thereof.
  • the injector/extractor 1 of the invention consists of a body 10 in which a lever 2 is pivotally supported by means of a pivot pin 9 forming a pivot axis PA for the lever 2.
  • the body 10 is preferably secured to the board front 22 with a base 16 thereof bearing flat upon an outer surface of the board front. It is secured to the board front 22 such as by means of a screw fastener 18 that is inserted through an aperture 17 (fig. 2B) in the base 16 and that is screwed into a threaded bore (not illustrated) in the board front 22.
  • the pivot axis PA of the lever 2 is floatingly supported in the body 10. In the illustrated embodiment this is accomplished by positioning the pivot pin in elongate openings 12 in the respective, spaced side walls 14, 15 (see especially figs. 2B-D) of the body 10.
  • the elongate openings 12 are extended in a direction being generally normal to the base 16 of the body 10 and thus also to the outer surface of the board front 22 in the assembled condition.
  • This floating support permits displacement of the pivot pin 9 and thereby of the pivot axis PA of the lever 2 in a direction that is likewise substantially normal to the base 16 of the body 10 as well as to the board front 22.
  • the pivot axis PA is also continuously biased for movement in a direction generally away from the base 16 of the body 10 and thus from the board front 22.
  • the biasing force constantly urges the pivot axis PA/the pivot pin 9 towards an end position engaging the upper end of the elongate openings 12.
  • the biasing force is applied through a biasing means in the form of a spring 11 acting directly upon the pivot pin 9.
  • the spring 11 acts directly between the base 16 of the body 10 and the pivot pin.
  • the spring 11 is formed integral with the base 16 of the body 10.
  • the entire body 10 is formed in one piece of an appropriate steel plate material that is bent to provide the leaf spring 11, the side walls 14, 15 and a generally latch-shaped locking means 13.
  • the body locking means 13 co- operates with a complementary lever locking means 5 to lock the lever in a position (position C in fig. 4C) where it engages the sub-rack formation 32 under simultaneous displacement of the pivot axis PA against the biasing force.
  • the body locking means 13 is resiliently yieldable in order to allow the lever locking means to enter the locking position, as will be explained below.
  • the leaf spring 11 applies a biasing force that may vary for different standards and applications.
  • an adequate biasing force for a secure connection of a telecom cabinet PCB- module 20 to a corresponding sub-rack may equal that applied by a conventionally used screw fastener.
  • the lever 2 of the injecting/extracting device 1 is illustrated in detail in figs. 3A-C and is of a design that is generally known within this field.
  • the lever 2 has a top wall 8 that in this embodiment is continuous to provide the required strength.
  • From each long side of the bottom wall is extended a side wall 6, 7.
  • Said side walls 6, 7 are spaced apart so that they in the assembled condition straddle the side walls 14, 15 of the body 10.
  • the lever 2 is preferably formed in one piece from an appropriate material, i.e. it may be cast from a plastic material or, in applications where cold flowing may present a serious problem, it may be cast from a metallic material or may even be formed from a steel plate bent to the appropriate shape.
  • the pivot pin 9 is not only floatingly supported in the body 10 but also in the lever 2. Specifically, the pivot pin 9 is likewise received in elongate openings 4 in the lever 2 side walls 6, 7.
  • This configuration of the lever 2 is known per se, and the main purpose thereof is to facilitate engagement of the lever 2 with a sub-rack engagement formation 32 having the configuration illustrated in fig. 1 A.
  • the openings 4 in the lever side walls 6, 7 are positioned so that they form an angle with the elongate openings 12 of the body, at least in the fully locked position (angle in the position C in fig. 4 C) of the injecting/extracting device 1. This will be described further below.
  • pivot pin 9 being floatingly supported in the body 10 as well as in the lever 2, retaining rings 19 (one schematically illustrated in fig. IB) or any other appropriate means are preferably provided in order to secure that the pivot pin 9 does not accidentally fall out from its position therein.
  • lever 2 engagement means 3 At one end of the lever 2 engagement means 3 are formed in the side walls 6, 7. Said engagement means 3 are formed as cut-outs in the side walls 6, 7 and they are sized so as to grasp the sub-rack engagement formations 32 during the final insertion of the electronic subassembly 20, in the locked and fully connected condition as well as during extraction.
  • the lever is provided with a generally latch-shaped locking means 5 that is complementary to the body locking means 13 to cooperate with the latter to securely lock the lever 2 to the body 10 in the fully connected position (position C in fig. 4C).
  • the lever locking means 5 is formed integral with the lever 2 adjacent an inner surface of the top wall 8 of the lever 2.
  • the lever locking means may also be in the form of a separate member that is attached to the lever 2.
  • a PCB module 20 is manually inserted into a sub- rack 30 with its side edges 28 (fig. 4B) guided in the schematically illustrated board guides 34.
  • the injector/extractor levers 2 are maintained in their open position A, pivoted clockwise to the right in fig. 4A.
  • the spring 11 that applies a continuous biasing force to the pivot pin 9 displaces the pin and the pivot axis PA so that the pin is urged against the upper end of the elongate groove 12 in the body 10.
  • the manual insertion or pushing-in of the PCB module 20 in the direction ID continues approxi- mately until it reaches a position where contact pins (not shown) of the board connectors 29 are about to enter the corresponding sockets 36 of the backplane connectors 35 (see fig. 1A).
  • the engagement means 3 of the lever 2 have already reached a position where they engage the sub-rack formation 32 through simultaneous anti-clockwise rotation thereof.
  • the provision of the elongate groove 4 in the lever 2 facilitates such engage- ment.
  • the engagement between the lever 2 and the sub-rack formation 32 causes the lever to rotate about engagement point EP (fig. 4B) upon further maneuvering thereof.
  • the pin 9 is moved further down in the opening 12 and the biasing force continues to increase.
  • the body locking means 13 gets free from the lever locking means 5 and springs back to grip behind the former and to lock the lever 2 against any clockwise rotation caused by the spring 11 biasing force.
  • the increased biasing force is sufficient to overcome the contact forces of contact springs 24 (see fig. 1 A) on the board front 22 and of grounding springs 25 that in some applications are provided on the board front 22, at its contact surface with a sub-rack support surface 38 (fig. 1A).
  • corresponding grounding springs 25 may be provided on the outer support surface 38 of the sub-rack.
  • the lever 2 is locked in a position C where it indirectly, through the transfer of the biasing force of the spring 11 to the board module 20, automatically and continuously applies a contact pressure between the board front 22 and the sub-rack 30.
  • the applied contact pressure should at least approximately equal that applied by a conventionally used screw fastener.
  • the lever 2 For the extraction of the board module 20 from the sub-rack 30 the lever 2 is lifted in its free end opposite the engagement means 3, possibly in combination with a slight further compression of the spring 11. This will cause the body locking means 13 to flex away to allow the lever locking means 5 to move past it for further clockwise rotation of the lever 2. In a conventional manner this clockwise rotation of the lever 2 continues so that the engagement means 3 engages an upper side of the engagement formation 32 and upon further rotation pulls out the board module sufficiently to overcome the connecting forces of the connectors 29, 35. Then, the board module 20 is easily pulled out by hand in the extraction direction ED (see fig. 4A).
  • the invention eliminates the need for the conventional screw fastener to secure the board module 20 to the sub-rack 30 in the connected position and with the appropriate contact force or pressure.
  • This is achieved by means of the lever that is pivotal between the inactive position where it is disengaged from the engagement formation and the position engaging the formation, to fully inject the board module into an electrically connected position in the chassis or sub-rack upon further pivoting, whereby the board module is continuously pressed into the fully connected and appropriately grounded position by the biasing force of the compressed spring.
  • the invention effectively eliminates the time consuming and generally irritating task of attaching and removing said screw fasteners each time a board module is inserted or removed, respectively. This presents an important advantage, especially in laboratories where modules are frequently replaced.
  • the floating support of the pivot pin 9, as teached by the invention is effective in taking up or allowing for tolerances in applications that meet the present standards according to which the board modules
  • an injector/extractor 101 having a modified locking mechanism 105, 113 for the lever 102.
  • the locking means 113 of the body 110 is slightly longer and is provided with a hook-like configuration at its upper end.
  • the hook-like formation 113 is flexed slightly to the right in fig. 5 A and enters an aperture 105 in the lever top wall 108.
  • the hook- like formation 113 snaps back to grip the top surface of the wall 108 and thereby lock the lever 102 in position.
  • the formation 113 is pushed back slightly to allow clockwise rotation of the lever 102.
  • the pivot pin 9 is in this embodiment illustrated supported in a fixed position in bores 104 in the lever 102 side walls, only the bore 104 in side wall 106 being illustrated. Furthermore, the leaf spring 111 is illustrated having a slightly more simplified configuration.
  • the modifications illustrated in figs. 5A-C provide the advantage of a somewhat simplified manufacture of the body 110 as well as of the lever 102.
  • such a fixed support of the pivot pin 9 in the lever 102 may make the engagement between the lever engagement means 3 and the sub-rack engagement means 32 more complicated, requiring also a modification (not illustrated) of the shape of the latter.
  • a further modified embodiment of the lever 202 where the pivot axis PA is formed by other means than a continuos pivot pin, such as by the illustrated stub shafts 209 formed integrally on the inner face of each lever side wall 206, 207 or alternatively being secured thereto.
  • said stub shafts 209 are received in the openings in the side walls of the body 210 in the same manner as a continuos pivot pin.
  • the biasing spring 211 will act directly upon the inner surface of the top wall 208 of the lever 202.
  • Fig. 7 illustrates an alternative embodiment of the body 310 of the injector/extractor 301.
  • the body 310 is manufactured separate from the locking means 313 and they are separately secured to the board front 22 by means of screw fasteners 319.
  • Fig. 8 illustrates an alternative solution for securing the pivot pin 409 in position.
  • the middle section 409A of the pivot pin 409 is formed with a smaller diameter than the remainder of the pin.
  • This middle section 409A cooperates with cutouts 411 A formed in side edges of the spring 411, thereby securing the axial position of the pin through the combined effect of the constant biasing force from the spring against the pin and the interlocking cooperation of the reduced section 409 A and the cutouts 411 A.
  • fig. 9 is a very schematic illustration of a sub-rack 30 with a partly inserted module 520 in an application using a slightly modified standard with regard to the locking and the positioning of the module in the connected position.
  • the board module has been injected to a fixed connected position determined by the contact between the board front and the outer support surface 38 of the sub-rack 30.
  • the board module has "bottomed" against the sub-rack at its outer side facing the board front and tolerances have been taken up within the connector parts 29, 35.
  • the basic features of the ⁇ ivention may be employed to effectively take up tolerances and to apply the required contact force also in applications where the board module would instead be allowed to "bottom" at the back-plane 39.
  • grounding springs 525 corre- sponding to those of figs. 4A-C, are employed that are compressible with a lower force than that required to compress the leaf spring 11 of the inventive injecting/extracting device 1.
  • tolerances in the sub-rack 30 and/or the board 521 are taken up at the contact point between the board front 522 and the outer sub-rack support surface 38, where the grounding spring 525 maintains appropriate grounding contact.
  • This effect is obtained by dimensionally configuring the board module 520 so relative to the dimensions and positioning of the sub-rack 30 and of the sub-rack connector part 35 that when the connector parts 29, 35 are fully connected, blocking further injection of the module, a nominal play P remains between a bottom surface 522A of the board front 522 and the outer support surface 38 of the sub-rack 30.
  • the distance Dl between the bottom surface 522A of the board front 522 and an outer engagement end 29A of the board connector part 29 shall nominally be approximately 1 mm greater than the distance D2 between the outer support surface 38 of the sub-rack 30 and an inner engagement end 35A of the sub-rack connector part 35. It will be realized that this play P will effectively take up any reasonable tolerances so that the board module 520 does not "bottom" at the outer surfaces 522 A and 38. Likewise, the grounding spring 525 will be able to maintain good grounding contact during such movement of approximately 1mm, in the event that tolerances will have to be compensated for.
  • pivot pin in a freely moveable manner, such as in circular or elliptical or otherwise formed openings that in all directions have dimensions exceeding the diameter of the pivot pin.
  • a support may be provided both in the body and in the lever or in only one of them as long as the openings present a surface restricting upward movement of the lever or pivot pin beyond a point where the appropriate compression of the spring is obtained in the locked position of the lever.
  • other spring means than the illustrated leaf spring may be provided and the exact position of the spring may be varied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

La présente invention concerne un sous-ensemble électronique (20) équipé d'un introducteur/extracteur (1) qui, pendant l'opération d'introduction du sous-ensemble accumule une force de contact entre le sous-ensemble et le châssis de montage (30) et qui est verrouillé en position de sous-ensemble introduit, de façon à appliquer en continu la force de contact dans la position verrouillé (C). L'accumulation de la force de contact résulte du soutien apporté à un axe de pivot (PA) d'un levier (2) de l'introducteur/extracteur de façon qu'il puisse se déplacer contre une force de ressort et d'un organe de verrouillage intégré (5, 13) verrouillant de façon sécurisée le levier en position d'application de la force de contact. Ainsi, l'invention rend superflues les fixations séparées pour appliquer la force de contact, ce qui facilite l'introduction et l'extraction, mais qui permet aussi d'économiser sur le coût des canaux recevant les écrous dans le châssis selon l'état actuel de la technique.
PCT/SE2002/000836 2002-04-26 2002-04-26 Introducteur/extracteur de carte WO2003092346A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SE2002/000836 WO2003092346A1 (fr) 2002-04-26 2002-04-26 Introducteur/extracteur de carte
AU2002307610A AU2002307610A1 (en) 2002-04-26 2002-04-26 Board injector/extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2002/000836 WO2003092346A1 (fr) 2002-04-26 2002-04-26 Introducteur/extracteur de carte

Publications (1)

Publication Number Publication Date
WO2003092346A1 true WO2003092346A1 (fr) 2003-11-06

Family

ID=29268145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/000836 WO2003092346A1 (fr) 2002-04-26 2002-04-26 Introducteur/extracteur de carte

Country Status (2)

Country Link
AU (1) AU2002307610A1 (fr)
WO (1) WO2003092346A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7522427B2 (en) 2004-06-15 2009-04-21 Hms Industrial Networks Ab Electrical module
CN105798832A (zh) * 2016-05-13 2016-07-27 宁波生久柜锁有限公司 防松微动开关扳手及其使用方法
EP3914058A1 (fr) * 2020-05-19 2021-11-24 Thales Ensemble amélioré pour insérer/extraire un module à l'intérieur/hors d'un support d'accueil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8911273U1 (de) * 1989-09-21 1989-11-16 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum Eindrücken und Ausziehen von großflächigen steckbaren Leiterplatten für Geräte der elektrischen Nachrichtentechnik
EP0699019A1 (fr) * 1994-08-25 1996-02-28 Dzus Fastener Europe Limited Mecanisme à levier
US5587888A (en) * 1995-01-23 1996-12-24 Schroff Gmbh Extracting device for plug-in modules
US6160717A (en) * 1999-02-24 2000-12-12 Cisco Technology Inc. Integrated retention spring with card ejector
US6361335B1 (en) * 1999-06-04 2002-03-26 Ericsson Inc. Snap-in module inserter/ejector with board mount and alignment features

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8911273U1 (de) * 1989-09-21 1989-11-16 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum Eindrücken und Ausziehen von großflächigen steckbaren Leiterplatten für Geräte der elektrischen Nachrichtentechnik
EP0699019A1 (fr) * 1994-08-25 1996-02-28 Dzus Fastener Europe Limited Mecanisme à levier
US5587888A (en) * 1995-01-23 1996-12-24 Schroff Gmbh Extracting device for plug-in modules
US6160717A (en) * 1999-02-24 2000-12-12 Cisco Technology Inc. Integrated retention spring with card ejector
US6361335B1 (en) * 1999-06-04 2002-03-26 Ericsson Inc. Snap-in module inserter/ejector with board mount and alignment features

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7522427B2 (en) 2004-06-15 2009-04-21 Hms Industrial Networks Ab Electrical module
CN105798832A (zh) * 2016-05-13 2016-07-27 宁波生久柜锁有限公司 防松微动开关扳手及其使用方法
EP3914058A1 (fr) * 2020-05-19 2021-11-24 Thales Ensemble amélioré pour insérer/extraire un module à l'intérieur/hors d'un support d'accueil
FR3110810A1 (fr) * 2020-05-19 2021-11-26 Thales Ensemble amélioré pour insérer/extraire un module à l'intérieur/hors d'un support d'accueil

Also Published As

Publication number Publication date
AU2002307610A1 (en) 2003-11-10

Similar Documents

Publication Publication Date Title
US5293303A (en) Circuit board injector/ejector device for a circuit board enclosure
US8295055B2 (en) Locking assembly for locking an electronics card to a rack
US7914332B2 (en) Self-locking electronic circuit card mounting assemblies and methods
US6625014B1 (en) System and method for situating a disk drive
US7419400B1 (en) Flexible circuit connector assembly
US20060023430A1 (en) Apparatus for inserting and ejecting an electronic enclosure within a cabinet
US5690504A (en) Plastic guide pin with steel core
US20060056164A1 (en) Card guide and method for use in guiding circuit board with respect to chassis
US6646883B2 (en) Insertion latch and ejectable pull handle for rack mounted electronic devices
US6948968B1 (en) Front installable guide and circuit card connecting device having same
US5743751A (en) Straddle adapter for mounting edge connectors to a printed circuit board
US20090219702A1 (en) Electronic Circuit Plug-In Module for a Mounting Rack
US7983053B2 (en) Electronic plug-in module for accommodation in a module rack
EP0427560A2 (fr) Enlèvement d'un composant multibroche monté dans des alvéoles sur une plaque de circuit
US8634203B2 (en) Latch assembly for connecting two boards
GB2273830A (en) Electrical contact elements for interposer structures
WO2003092346A1 (fr) Introducteur/extracteur de carte
US4606591A (en) Lock/ejector system for printed wiring board
US11147183B2 (en) Flexible lever of external module at server
EP0534402A2 (fr) Dispositif de déverrouillae d'un organe d'accrochage sous tension élastique, sur le côté d'un tiroir
EP2356892A1 (fr) Élément de fixation pour une carte d'extension et disposition en conséquence d'un élément de fixation muni d'une carte d'extension dans un système informatique
US6361335B1 (en) Snap-in module inserter/ejector with board mount and alignment features
US7796377B2 (en) Computer component ejector mechanism
US4668036A (en) Large picture display device
US8077473B1 (en) Spring-latching circuit module injector/ejector

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP