US20060040518A1 - Electrical connector having protecting protrusions - Google Patents
Electrical connector having protecting protrusions Download PDFInfo
- Publication number
- US20060040518A1 US20060040518A1 US11/137,975 US13797505A US2006040518A1 US 20060040518 A1 US20060040518 A1 US 20060040518A1 US 13797505 A US13797505 A US 13797505A US 2006040518 A1 US2006040518 A1 US 2006040518A1
- Authority
- US
- United States
- Prior art keywords
- top surface
- electrical connector
- contacting portion
- protrusion
- passageway
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2442—Contacts for co-operating by abutting resilient; resiliently-mounted with a single cantilevered beam
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
-
- 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
- H05K7/1053—Plug-in assemblages of components, e.g. IC sockets having interior leads
- H05K7/1061—Plug-in assemblages of components, e.g. IC sockets having interior leads co-operating by abutting
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connecting Device With Holders (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
- 1. Field of the invention
- The present invention relates to electrical connectors, and more particularly to a land grid array (LGA) connector for electrically connecting an electronic package such as a CPU chip, to a circuit substrate such as a printed circuit board (PCB).
- 2. Description of the Prior Art
- Land grid array (LGA) electrical connectors are widely used in the connector industry for electrically connecting CPU chips to PCBs. A conventional LGA electrical connector is disclosed in U.S. Pat. No. 6,695,624. The electrical connector generally comprises an insulative housing and a plurality of electrical terminals received in the housing. Each terminal has a relatively long spring arm extending beyond outside the housing, for electrically mating with a corresponding pad on a CPU chip. However, the connector has a shortcoming that there is no protecting means for the terminals. When the connector is collided by an exterior object, the spring arm is prone to be accidental damaged because of undue force generated during the colliding. The terminal being damaged is difficult to effectively mating with the pad on the CPU chip. This can thereby affect reliable electrical connecting between the connector and the CPU chip.
- Therefore, a new land grid array electrical connector, which overcomes the above-mentioned disadvantages of the prior art, is desired.
- Accordingly, a main object of the present invention is to provide a new LGA connector with terminals, whereby the connector can protect the terminals from being accidental damaged.
- To achieve the aforementioned object, an
LGA connector 1 in accordance with a preferred embodiment of the present invention is provided. The connector comprises an insulative housing having a top surface and a plurality of passageways received in the housing. The terminals each have a retention portion secured in the housing and a spring arm extending from the retention portion. A contacting portion is formed at a topmost part of the spring arm, exposing above the top surface a distance in a direction perpendicular to the top surface. A plurality of protrusions is formed on the top surface. Said protrusions project beyond the top surface, for protecting the terminals from collided damage. A common supporting surface is formed on a top of said protrusions, the supporting surface being higher than the contacting portion in the direction perpendicular to the top surface. - Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is an isometric view of an LGA connector in accordance with a preferred embodiment of the present invention, showing terminals received in passageways defined in a housing of the connector respectively; -
FIG. 2 is an enlarged, isometric view of one terminal ofFIG. 1 -
FIG. 3 is an enlarged view of a circled portion m ofFIG. 1 ; -
FIG. 4 is a cross-sectional view of the connector ofFIG. 1 , together with a CPU chip and a PCB, and showing the CPU being ready to be pressed down; -
FIG. 5 is an enlarged view of a circled portion V-V ofFIG. 4 ; -
FIG. 6 is similar toFIG. 1 , but showing the CPU being pressed down; and -
FIG. 7 is an enlarged view of a circled portion VII-VII ofFIG. 6 . - Reference will now be made to the drawings to describe the present invention in detail.
- Referring to
FIG. 1 , anLGA connector 10 in accordance with a preferred embodiment of the present invention is provided for electrically connecting aCPU chip 80 to a PCB 90 (best seen inFIGS. 4 and 6 ). TheLGA connector 10 may, of course, be applied in other environments such as for electrically interconnecting two PCBs and so on. Theconnector 10 comprises a rectangularinsulative housing 30 and a plurality ofterminals 50 received in thehousing 30. - The
housing 30 is configured with abottom wall 32 and fourside walls 34 extending upwardly from peripheries of thebottom wall 32. Areceiving cavity 31 is defined between thebottom wall 32 and theside walls 34, for accommodating the CPU chip 3 therein.Guiding slant surfaces 340 are formed on theside walls 34 around a top mouth of thecavity 31, for facilitating insertion of theCPU package 90 into thecavity 31. - Referring also to
FIG. 2 , atop surface 320 is formed on a top of thebottom wall 32, for supporting theCPU chip 80 thereon. Abottom surface 322 is formed on a bottom of thebottom wall 32, for being mounted on thePCB 90. A plurality ofpassageways 321 arranged in array is defined in thebottom wall 32. Thepassageways 321 extend from thetop surface 320 to thebottom surface 322, for receiving theterminals 50 respectively therein. Eachpassageway 321 has a general T-shaped configuration, and includes alarge receiving section 323 and anarrow securing section 325 perpendicular to and in communication with thereceiving section 323. - Referring best to
FIGS. 2 and 4 to 7, a plurality ofparallelepiped protrusions 324 is formed on thehousing 30, projecting integrally and upwardly from thetop surface 320 ofbottom wall 32. Theprotrusions 324 have a common top-supportingsurface 326 for engaging sustaining theCPU chip 80 thereon when theCPU chip 80 is secured in thecavity 31 of thehousing 30. In addition, theprotrusions 324 each have a uniform vertical height relative to thetop surface 322, in a thickness direction of thebottom wall 32. Thereby, theCPU chip 80 can steadily sit on theprotrusions 324. Theprotrusion 324 is located around acorresponding passageway 321 at one side near thereceiving section 323 of thepassageway 321 and opposing to the securingsection 325. - Referring to
FIG. 3 , theterminals 50 are formed from conductive material by known stamping process. Eachterminal 50 has a vertical plate-like retention portion 52, a cantilever-shaped spring arm 54 extending upwardly from a top of theretention portion 52, and atail portion 56 extending downwardly from a bottom of theretention portion 52. A plurality ofbarbs 520 is formed on opposite lateral sides of theretention portion 52, for interferingly engaging inner sides of the securingsection 325 of acorresponding passageway 321. Thetail portion 56 is substantially perpendicularly bent from the bottom of theretention portion 52, for electrically engaging a corresponding contact pad (not showed) on the PCB 90 via asoldering ball 92. - The
spring arm 54 includes a vertical first extending section 52A extending upwardly from the top of theretention portion 52, and a general horizontal second extending section 54B bent slantwise from a top end of the first extending portion 54A. The second extending section 54B has a substantially taper configuration, with a sectional width becoming gradually smaller and smaller from a start end adjacent the first extending section 54A to a free end thereof. A contactingportion 58 is formed at the free end of the second extending section 54B, with its distal end facing downwardly. The contactingportion 58 is located at a topmost part of thespring arm 50 and has an arced or curved upper surface (not numbered), for electrically engaging acorresponding pad 82 formed on a bottom of theCPU chip 80. - In assembly, the
terminal 50 is loaded from a top of thehousing 30 into acorresponding passageway 321, with thetail portion 56 going through thereceiving section 325 of thepassageway 321. Theretention portion 52 is planted in thesecuring section 323 of thepassageway 321, thebarbs 520 engagingly intervening the inner side of thesecuring section 323. Thus theterminal 50 is firmly retained in thepassageway 321. - After assembly, the second extending section 54B of the
spring arm 54 partly projects from thereceiving section 323 beyond thetop surface 320 of thehousing 30 and below the supportingsurface 326 of theprotrusions 324. As best seenFIG. 5 , the supportingsurface 326 of theprotrusions 324 is higher a vertical distance h than the contactingportion 58 of the terminal 50 in a direction perpendicular to thetop surface 320. From a top elevation aspect of the connector, theprotrusion 324 is close to the contactingportion 58. - Because the contacting
portion 58 of thespring arm 54 is lower than the supportingsurface 326 of theprotrusion 324, when theconnector 10 is improperly collided by exterior objects from the top of thehousing 30, theprotrusions 324 can resist the exterior objects. And this thereby can avoid the contactingportion 58 from being damaged because of the undue force generated during the colliding. In addition, in this preferred embodiment, theprotrusion 324 is located at the side of thecorresponding passageway 321, near the receivingsection 323 of thepassageway 321. And from a top elevation aspect of the connector, theprotrusion 324 is close to the contactingportion 58. This can protect the contactingportion 58 of the terminal 50 from being damaged more effectively. - In use, the
connector 10 is electrically mounted on thePCB 90, thetail portion 56 of the terminal 50 connecting with the solderedball 92. TheCPU chip 80 is inserted into thecavity 31 of thehousing 30, with eachpad 82 of theCPU chip 80 seating and pressing on the contactingportion 58 of a correspondingterminal 50. TheCPU chip 80 is pressed down by exterior force until the bottom of theCPU chip 80 is fully and steadily sustained on the supportingsurface 326 of theprotrusions 324 of thehousing 30. Thepad 82 of theCPU chip 80 has a bottom face pressed the contactingportion 58 of the terminal to urge thespring arm 54 to resiliently deform down. Thus theCPU chip 80 is electrically connected with theconnector 10. - The above-described embodiment shows that the
protrusion 324 is located around a correspondingpassageway 321 and has a parallelepiped configuration, but it is not limited thereto. Theprotrusion 324 may have other shapes or configuration, e.g. step-like projection and so on, provided that those kinds ofprotrusions 324 each can provide the supportingsurface 326 above the top surface 320 a determined height and avoid from intervening with thecontacts 50. And this thereby avoids colliding and scraping damage of thehousing 10 by motion of the CPU chip. As a result, effective electrical connection between the CPU chip 60 and the contacts 12 of the connector is secured. - While the present invention has been described with reference to a preferred embodiment, the description is illustrative and is not to be construed as limiting the invention. Therefore, various equivalent modifications and changes known to persons skilled in the art according to the spirit of the present invention are considered within the scope of the present invention as defined in the appended claims.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200420078993.6U CN2731753Y (en) | 2004-08-23 | 2004-08-23 | Socket connector |
CN2004200789936 | 2004-08-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060040518A1 true US20060040518A1 (en) | 2006-02-23 |
US7008237B1 US7008237B1 (en) | 2006-03-07 |
Family
ID=35052067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/137,975 Expired - Fee Related US7008237B1 (en) | 2004-08-23 | 2005-05-25 | Electrical connector having protecting protrusions |
Country Status (2)
Country | Link |
---|---|
US (1) | US7008237B1 (en) |
CN (1) | CN2731753Y (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080050940A1 (en) * | 2006-08-22 | 2008-02-28 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector with moveably contact |
US20110021059A1 (en) * | 2009-07-15 | 2011-01-27 | Xiaozheng Lu | Hdmi connector assembly system for field termination and factory assembly |
WO2012057767A1 (en) * | 2010-10-28 | 2012-05-03 | Hewlett-Packard Company, L.P. | Land grid array socket assembly |
US20120252274A1 (en) * | 2011-03-29 | 2012-10-04 | Lotes Co., Ltd. | Electrical connector |
US20140038438A1 (en) * | 2012-08-02 | 2014-02-06 | Yen-Chih Chang | Shielding socket with two pieces housing components |
CN108258467A (en) * | 2017-12-01 | 2018-07-06 | 番禺得意精密电子工业有限公司 | Electric connector |
US20180331442A1 (en) * | 2017-05-12 | 2018-11-15 | Lotes Co., Ltd | Electrical connector |
US20180375243A1 (en) * | 2017-06-21 | 2018-12-27 | Foxconn Interconnect Technology Limited | Low profile electrical connector |
US20190288432A1 (en) * | 2018-03-19 | 2019-09-19 | Fu Ding Precision Component (Shen Zhen) Co., Ltd. | Electrical contact of electrical connector |
US20190288431A1 (en) * | 2018-03-16 | 2019-09-19 | Fu Ding Precision Component (Shen Zhen) Co., Ltd. | Electrical contact of electrical connector |
US10490951B2 (en) * | 2017-06-16 | 2019-11-26 | Lotes Co., Ltd | Electrical connector |
US11251557B2 (en) * | 2020-01-07 | 2022-02-15 | Lotes Co., Ltd | Electrical connector |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7128580B2 (en) * | 2004-04-09 | 2006-10-31 | Hon Hai Precision Ind. Co., Ltd. | Socket connector with supporting housing protrusions |
US7189080B2 (en) * | 2005-08-08 | 2007-03-13 | Hon Hai Precision Ind. Co., Ltd. | Land grid array connector contact |
CN100463305C (en) * | 2006-03-06 | 2009-02-18 | 番禺得意精密电子工业有限公司 | Electric connector and production thereof |
TWM351527U (en) * | 2008-06-16 | 2009-02-21 | Hon Hai Prec Ind Co Ltd | Electrical connector |
TWM380604U (en) * | 2009-11-12 | 2010-05-11 | Hon Hai Prec Ind Co Ltd | Electrical connector |
CN108615999B (en) | 2018-03-20 | 2019-12-27 | 番禺得意精密电子工业有限公司 | Electrical connector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6345987B1 (en) * | 1999-06-25 | 2002-02-12 | Kyocera Elco Corporation | Electrical connector |
US6604950B2 (en) * | 2001-04-26 | 2003-08-12 | Teledyne Technologies Incorporated | Low pitch, high density connector |
US6805561B1 (en) * | 2003-07-22 | 2004-10-19 | Hon Hai Precision Ind. Co., Ltd. | Electrical socket having terminals with elongated mating beams |
US6824396B2 (en) * | 2001-05-31 | 2004-11-30 | Samtec, Inc. | Compliant connector for land grid array |
US6843659B2 (en) * | 2002-11-22 | 2005-01-18 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having terminals with reinforced interference portions |
US6921271B2 (en) * | 2003-04-09 | 2005-07-26 | Hon Hai Precision Ind. Co., Ltd. | Socket having terminals with reslient contact arms |
-
2004
- 2004-08-23 CN CN200420078993.6U patent/CN2731753Y/en not_active Expired - Lifetime
-
2005
- 2005-05-25 US US11/137,975 patent/US7008237B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6345987B1 (en) * | 1999-06-25 | 2002-02-12 | Kyocera Elco Corporation | Electrical connector |
US6604950B2 (en) * | 2001-04-26 | 2003-08-12 | Teledyne Technologies Incorporated | Low pitch, high density connector |
US6824396B2 (en) * | 2001-05-31 | 2004-11-30 | Samtec, Inc. | Compliant connector for land grid array |
US6843659B2 (en) * | 2002-11-22 | 2005-01-18 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having terminals with reinforced interference portions |
US6921271B2 (en) * | 2003-04-09 | 2005-07-26 | Hon Hai Precision Ind. Co., Ltd. | Socket having terminals with reslient contact arms |
US6805561B1 (en) * | 2003-07-22 | 2004-10-19 | Hon Hai Precision Ind. Co., Ltd. | Electrical socket having terminals with elongated mating beams |
US6908313B2 (en) * | 2003-07-22 | 2005-06-21 | Hon Hai Precision Ind. Co., Ltd. | Electrical socket having terminals with elongated mating beams |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080050940A1 (en) * | 2006-08-22 | 2008-02-28 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector with moveably contact |
US8507796B2 (en) | 2009-07-15 | 2013-08-13 | Luxi Electronics Corp. | Ribbon Cables |
US20110021059A1 (en) * | 2009-07-15 | 2011-01-27 | Xiaozheng Lu | Hdmi connector assembly system for field termination and factory assembly |
US20110017491A1 (en) * | 2009-07-15 | 2011-01-27 | Xiaozheng Lu | Hdmi connector assembly system for field termination and factory assembly |
US20110065308A1 (en) * | 2009-07-15 | 2011-03-17 | Xiaozheng Lu | Hdmi connector assembly system for field termination and factory assembly |
US8002572B2 (en) | 2009-07-15 | 2011-08-23 | Luxi Electronics Corp. | HDMI DIY field termination products |
US8500489B2 (en) | 2009-07-15 | 2013-08-06 | Luxi Electronics Corp. | HDMI locking connectors |
WO2012057767A1 (en) * | 2010-10-28 | 2012-05-03 | Hewlett-Packard Company, L.P. | Land grid array socket assembly |
US9060436B2 (en) | 2010-10-28 | 2015-06-16 | Hewlett-Packard Development Company, L.P. | Land grid array socket assembly |
US20120252274A1 (en) * | 2011-03-29 | 2012-10-04 | Lotes Co., Ltd. | Electrical connector |
US8360790B2 (en) * | 2011-03-29 | 2013-01-29 | Lotes Co., Ltd. | Electrical connector |
US8851904B2 (en) * | 2012-08-02 | 2014-10-07 | Hon Hai Precision Industry Co., Ltd. | Shielding socket with two pieces housing components |
US20140038438A1 (en) * | 2012-08-02 | 2014-02-06 | Yen-Chih Chang | Shielding socket with two pieces housing components |
US10389050B2 (en) * | 2017-05-12 | 2019-08-20 | Lotes Co., Ltd. | Electrical connector |
US20180331442A1 (en) * | 2017-05-12 | 2018-11-15 | Lotes Co., Ltd | Electrical connector |
US10490951B2 (en) * | 2017-06-16 | 2019-11-26 | Lotes Co., Ltd | Electrical connector |
US10651584B2 (en) * | 2017-06-21 | 2020-05-12 | Foxconn Interconnect Technology Limited | Low profile electrical connector |
US20180375243A1 (en) * | 2017-06-21 | 2018-12-27 | Foxconn Interconnect Technology Limited | Low profile electrical connector |
US20190173207A1 (en) * | 2017-12-01 | 2019-06-06 | Lotes Co., Ltd. | Electrical connector |
US10535935B2 (en) * | 2017-12-01 | 2020-01-14 | Lotes Co., Ltd | Electrical connector having supporting portions and insulating body integrally formed |
CN108258467A (en) * | 2017-12-01 | 2018-07-06 | 番禺得意精密电子工业有限公司 | Electric connector |
US20190288431A1 (en) * | 2018-03-16 | 2019-09-19 | Fu Ding Precision Component (Shen Zhen) Co., Ltd. | Electrical contact of electrical connector |
US10680372B2 (en) * | 2018-03-16 | 2020-06-09 | Fu Ding Precision Component (Shen Zhen) Co., Ltd. | Electrical contact of electrical connector |
US20190288432A1 (en) * | 2018-03-19 | 2019-09-19 | Fu Ding Precision Component (Shen Zhen) Co., Ltd. | Electrical contact of electrical connector |
US10680373B2 (en) * | 2018-03-19 | 2020-06-09 | FU DING PRECISION COMPONENT (SHEN ZHEN) Co. | Electrical contact of electrical connector |
US11251557B2 (en) * | 2020-01-07 | 2022-02-15 | Lotes Co., Ltd | Electrical connector |
Also Published As
Publication number | Publication date |
---|---|
CN2731753Y (en) | 2005-10-05 |
US7008237B1 (en) | 2006-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HON HAI PRECISION IND. CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MA, HAO-YUN;SZU, MING-LUN;REEL/FRAME:016607/0308 Effective date: 20041213 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
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FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.) |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.) |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20180307 |