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WO2003012929A1 - Support a matrice douilles-broches - Google Patents

Support a matrice douilles-broches Download PDF

Info

Publication number
WO2003012929A1
WO2003012929A1 PCT/US2002/023058 US0223058W WO03012929A1 WO 2003012929 A1 WO2003012929 A1 WO 2003012929A1 US 0223058 W US0223058 W US 0223058W WO 03012929 A1 WO03012929 A1 WO 03012929A1
Authority
WO
WIPO (PCT)
Prior art keywords
slide plate
base housing
socket
resilient
projection
Prior art date
Application number
PCT/US2002/023058
Other languages
English (en)
Other versions
WO2003012929B1 (fr
Inventor
Toshihisa Hirata
Original Assignee
Molex Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Molex Incorporated filed Critical Molex Incorporated
Priority to US10/484,957 priority Critical patent/US7044764B2/en
Publication of WO2003012929A1 publication Critical patent/WO2003012929A1/fr
Publication of WO2003012929B1 publication Critical patent/WO2003012929B1/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
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/10—Plug-in assemblages of components, e.g. IC sockets
    • H05K7/1007—Plug-in assemblages of components, e.g. IC sockets with means for increasing contact pressure at the end of engagement of coupling parts

Definitions

  • the present invention relates to a socket for a pin grid array package ("PGA").
  • Conventional PGA sockets comprise a base housing having the corresponding plurality of terminals set in its terminal mounts, which are arranged in the same grid pattern as the lead pins of the pin grid array package, and a slide plate having the corresponding plurality of through holes made and arranged in the same grid pattern.
  • Each through hole corresponds to one of the terminals, and the slide plate is movable between the lead pin-inserting position in which the lead pins of the pin grid array package can be inserted in the through holes and the terminal mounts, requiring little or no pushing force, and the locldng position in which the lead pins are applied to, and put in contact with the terminals in the terminal mounts.
  • the slide plate has slide means to move the slide plate back and forth on the base housing.
  • slide means comprises a cam axle rotatably fixed to one lateral edge and an operating handle attached to one longitudinal side of the base housing for rotating the cam axle, as for instance, is shown in Japanese Patent Application Laid-Open No.7- 142134.
  • slide means comprises a cam member passing through the slide plate and the underlying base housing, and the cam member can be rotated by using a screw driver to move the slide plate on the base housing back and forth, as for instance, is shown in Japanese Patent Application Laid-Open No. 11-513837.
  • the PGA socket uses the base housing and the slide plate, which can be moved on the base housing back and forth. As a matter of fact, however, these base housing and slide plate are combined together more loosely than required to permit the sliding of the slide plate on the base housing because of the allowance or tolerance. Such significant looseness causes little or no problem, provided that an associated PGA package has so small number of lead pins that adjacent lead pins may be separated a relatively large distance, compared with the allowance. As a general tendency the number of lead pins in PGA sockets has been increasing, and accordingly the pin-to-pin distance has been decreasing to the extent that the excessive looseness may cause an adverse effect in making a required electric connection.
  • one object is to provide a PGA socket free of excessive looseness between its base housing and slide plate that could cause an adverse effect in making a required electric connection.
  • Another object is to provide a PGA socket having structure that permits the slide plate to be kept center-aligned while moving on the base housing, thus assuring that reliable electric connections be established between the PGA lead pins and the terminals of the socket.
  • the present application discloses a socket for a pin grid array package, the socket including a base housing and a slide plate, the slide plate being movable between a first, or lead pin inserting position, in which the lead pins of the pin grid array package can be inserted in the through holes and the terminal mounts and a second, or locking position, in which the lead pins are applied to the terminals in the terminal mounts.
  • the PGA socket includes at least one resilient piece on either the base housing or the slide plate and that other of the base housing or slide plate has an engagement means for receiving the at least one resilient piece.
  • the resilient piece may be engaged with the engagement means in such a manner that the slide plate is kept aligned relative to its center when it is operated between the first position and the second position.
  • the PGA socket may include two resilient pieces, and the two resilient pieces may be arranged symmetrically with respect to the centerline of the base housing.
  • the base housing may have the resilient piece or pieces provided on one lateral edge of the base housing whereas the slide plate may have the resilient piece or pieces provided on the other lateral edge of the slide plate.
  • FIGURE 1 is a top view of a PGA socket according to the present invention.
  • FIGURE 2 is a top view of the base housing of the PGA socket of FIGURE 1 ;
  • FIGURE 3 is a top view of the slide plate of the PGA socket of FIGURE 1 ;
  • FIGURE 4 is a side view of the slide plate of FIGURE.3.
  • a PGA socket 10 comprises a rectangular base housing 20 and an overlying slide plate 30.
  • the base housing 20 has as many terminals 21 as the lead pins of a PGA set in its terminal mounts (see FIG. 2).
  • the terminal mounts 21a are arranged in the same pattern as the lead pins of the pin grid array package.
  • Each terminal 21 has a tail extending on its rear side, and when the terminal is put in a selected temimal mount, the tail appears on the bottom surface of the base housing 20.
  • Each terminal mount is open on its top side to accommodate a selected lead pin of a PGA package.
  • the slide plate 30 has as many through holes 31 as the terminals 21 made and arranged in the same pattern as the lead pins of the pin grid a ⁇ ay. Each through hole is allotted to each of the terminals 21.
  • the slide plate 30 has two, "L"-shaped plates integrally connected to its opposite longitudinal sides, and the slide plate 30 is movably laid on the base housing 20 with the "L"-shaped plates fitted on the guide ridges of the opposite longitudinal sides of the base housing 20.
  • the slide plate 30 can be moved back and forth between the lead pin-inserting position in which the lead pins of the pin grid array package can be inserted in the through holes 31 and the terminal mounts and the locking position in which the lead pins are applied to the terminals 21 in the terminal mounts.
  • a cam member 22 has a hexagonal hole 22a made at its center, and the cam member 22 is rotatably fixed to one lateral side of the base housing 20 and the slide plate 30 has a oblong-shaped aperture 32 made on one lateral side of the slide plate 30.
  • the slide plate 30 is laid on the base housing 20 with the cam member 22 fitted in the oblong-shaped aperture 32. Initially, the slide plate 30 is put in the lead pin-inserting position (see Fig. 1), in which the lead pins of the pin grid array package can be inserted in the through holes 31 of the slide plate 30 and the terminal mounts of the base housing 20 without the necessity of applying a significant strength of pushing force to the pin grid package.
  • the base housing 20 has a shoulder section 24 formed on one lateral side, and a set of projections 25 formed on the other lateral side.
  • the terminals 21 are mounted in the main flat plate 26 of the base housing 20.
  • the shoulder section 24 is composed of an intermediate plate 24a and an.upper plate, both of which are integrally connected to the main flat plate 26 of the base housing 20.
  • the upper plate has a rectangular recess formed at its middle, and the cam pivot hole 23 is made at the center of the rectangular recess.
  • the cam member 22 is fixed to the cam seat 29, which is defined by the rectangular recess.
  • the geometry of the base housing 20 is symmetric with respect to the center longitudinal line D.
  • the intermediate plate 24a has two recesses 27a and 27b made at the lower, opposite comers of the rectangular cam seat 29, and two recesses 28a and 28b made in the vicinities of the opposite longitudinal sides of the base housing 20.
  • the set of projections 25 are two relative narrow resilient projections 25c and 25d and two wide rigid projections 25a and 25b.
  • the resilient projections 25c and 25d are symmetric with respect to the center longitudinal line D, and the rigid projections 25a and 25b are arranged so close to the resilient projections 25c and 25d as to prevent the resilient projections 25c and 25 d from being bent largely.
  • the slide plate 30 comprises a rectangular flat plate 33 having a rectangular projection 34 integrally connected to one lateral side.
  • the rectangular projection 34 can be fitted in the rectangular recess 29 of the base housing 20, and the oblong-shaped aperture 32 is made at the center of the rectangular projection 34.
  • the rectangular flat plate 33 of the slide plate 30 has two narrow resilient projections
  • the resilient projections 37a and 37b are close to the opposite sides of the rectangular projection 34 whereas the rigid projections 35a and 35b are arranged to be close to the opposite longitudinal sides of the rectangular flat plate 33 of the slide plate 30.
  • the projections 37a and 37b are so shaped and sized that when the slide plate 30 is laid on the base housing 20, the projections 37a and 37b may be inserted in the recesses 27a and 27b by allowing them to be yieldingly bent more or less toward the opposite sides of the rectangular projection 34 while sliding on the engagement walls 27c and 27d of the recesses 27a and 27b.
  • the slide plate 30 has a projection 38 formed on the lateral side of the rectangular flat plate 33 opposite to the lateral side on which the cam member 22 is attached.
  • the width of the projection 38 is somewhat larger than the space separating the resilient projections 25c and 25d. As such, the projection 38 is pinched tightly between the resilient projections 25c and 25d.
  • the slide plate 30 is laid and press-fitted on the base housing 20 by allowing its opposite "L"-shaped projections to be caught by the ridges formed on the opposite longitudinal sides of the base housing 20. In this position the slide plate 30 camiot be closely fitted on the base housing 20 because of the tolerance, and in the conventional PGA socket structure, therefore, the slide plate 30 cannot be moved on the base housing 20 without hitting each other with a rattling noise.
  • the slide plate 30 is moved in the direction opposite to the direction indicated by arrow A (Fig.l).
  • the rectangular projection 34 of the slide plate 30 is pushed completely in the rectangular recess 29 of the base housing 20, allowing the resilient projections 37a and 37b and rigid projections 35a and 35b of the slide plate 30 to enter the recesses 27a, 27b and 28a and 28b of the base housing 20 respectively, and at the same time, allowing the projection 38 of the slide plate 30 to enter the gap between the resilient projections 25c and 25d of the base housing 20.
  • the resilient projections 37a and 37b slide on the engagement walls 27c and 27d of the recesses 27a and 27b while being yieldingly bent more or less, thereby causing a resilient force to apply to either side of the slide plate 30, reducing the looseness between the slide plate 30 and the base housing 20.
  • the projection 38 is allowed to enter the gap between the resilient projections 25c and 25d.
  • the slide plate 30 is kept aligned with the center line D on the way to the final fitting position.
  • the tlirough holes 31 of the slide plate 30 and the terminals 21 of the base housing 20 can be aligned exactly, no matter how the number of the PGA lead pins may be increased (or no matter how the pin-to-pin space may be reduced).
  • this particular embodiment use is made of two sets of resilient pieces 37a, 37b and 25c and 25d and engagement means 27c, 27d (in the form of wall surfaces) and 38 (in the form of projection). It should be noted that one set of resilient piece and engagement means suffices for the purpose of preventing the rattling, and that arrangement of the resilient piece-and- engagement means combination on one side of the longitudinal center line in place of the symmetric arrangement as in the above described embodiment suffices for the purpose.

Landscapes

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

Abstract

La présente invention concerne un support à matrice douilles-broches (PGA) présentant une structure permettant de maintenir l'alignement central de la glissière en se déplaçant sur le boîtier de la base, assurant ainsi l'établissement de connexions électriques fiables entre les broches de connexion PGA et les bornes de la douille. Le support PGA comporte un boîtier de base et une glissière, la glissière étant mobile entre une première position, dite position d'insertion de broches de connexion, dans laquelle les broches de connexion du boîtier de la matrice douilles-broches peuvent être introduites dans les vias et les montures des bornes et une deuxième position, dite position de verrouillage, dans laquelle les broches de connexion sont appliquées aux bornes dans les montures des bornes. Le support PGA comprend au moins une pièce élastique soit sur le boîtier de base ou sur la glissière et soit le boîtier de base ou la glissière comporte un moyen d'engagement permettant la réception de ladite au moins une pièce élastique. La pièce élastique peut être en prise avec le moyen d'engagement de sorte que la glissière est maintenue en alignement par rapport au centre lorsqu'elle est commandée entre la première position et la deuxième position. En outre, le support PGA peut comprendre deux pièces élastiques, et les deux pièces élastiques peuvent être disposées de manière symétrique par rapport à l'axe du boîtier de base.
PCT/US2002/023058 2001-07-30 2002-07-22 Support a matrice douilles-broches WO2003012929A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/484,957 US7044764B2 (en) 2001-07-30 2002-07-22 Socket for a pin grid array package

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001229273A JP2003059605A (ja) 2001-07-30 2001-07-30 ピングリッドアレイパッケージ用ソケット
JP229273/2001 2001-07-30

Publications (2)

Publication Number Publication Date
WO2003012929A1 true WO2003012929A1 (fr) 2003-02-13
WO2003012929B1 WO2003012929B1 (fr) 2003-05-01

Family

ID=19061644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/023058 WO2003012929A1 (fr) 2001-07-30 2002-07-22 Support a matrice douilles-broches

Country Status (4)

Country Link
JP (1) JP2003059605A (fr)
CN (1) CN1315229C (fr)
TW (1) TW551633U (fr)
WO (1) WO2003012929A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113675669B (zh) * 2020-05-14 2024-04-19 富联精密电子(天津)有限公司 电子装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014506A2 (fr) * 1998-12-05 2000-06-28 Molex Incorporated Connecteur enfichable zero force d'insertion destine a module à broches en grille
US6146178A (en) * 1999-09-24 2000-11-14 Hon Hai Precision Ind. Co., Ltd. Cam mechanism for a zero-insertion-force connector
US6231366B1 (en) * 1999-06-25 2001-05-15 Jon Hai Precision Ind. Co., Ltd. Single-point driving mechanism of a ZIF PGA socket and the socket using the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01246036A (ja) * 1988-03-25 1989-10-02 Omron Tateisi Electron Co 微動ステージ装置
JPH04354636A (ja) * 1991-05-30 1992-12-09 Mitsubishi Electric Corp 多軸直動駆動装置
JPH0752660B2 (ja) * 1992-11-07 1995-06-05 山一電機株式会社 電気部品用ソケット

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014506A2 (fr) * 1998-12-05 2000-06-28 Molex Incorporated Connecteur enfichable zero force d'insertion destine a module à broches en grille
US6231366B1 (en) * 1999-06-25 2001-05-15 Jon Hai Precision Ind. Co., Ltd. Single-point driving mechanism of a ZIF PGA socket and the socket using the same
US6146178A (en) * 1999-09-24 2000-11-14 Hon Hai Precision Ind. Co., Ltd. Cam mechanism for a zero-insertion-force connector

Also Published As

Publication number Publication date
CN1315229C (zh) 2007-05-09
TW551633U (en) 2003-09-01
JP2003059605A (ja) 2003-02-28
WO2003012929B1 (fr) 2003-05-01
CN1537346A (zh) 2004-10-13

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