Source: http://www.google.com/patents/US7147479?ie=ISO-8859-1
Timestamp: 2014-07-12 15:24:45
Document Index: 243414382

Matched Legal Cases: ['art.\n6', 'art 602', 'art 602', 'art 232', 'art 232', 'art 26', 'art 26', 'art 56', 'art 56', 'art 532', 'art 532']

Patent US7147479 - Electrical connector - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsAn electrical connector includes an insulation body and a conducting pin received in the insulation body. The conducting pin includes a body and a flexible contacting arm that flexibly and compressively contacts an external electronic element. On the backside of the flexible contacting arm, there is...http://www.google.com/patents/US7147479?utm_source=gb-gplus-sharePatent US7147479 - Electrical connectorAdvanced Patent SearchPublication numberUS7147479 B1Publication typeGrantApplication numberUS 11/349,133Publication dateDec 12, 2006Filing dateFeb 8, 2006Priority dateFeb 8, 2006Fee statusPaidPublication number11349133, 349133, US 7147479 B1, US 7147479B1, US-B1-7147479, US7147479 B1, US7147479B1InventorsChien-Chih HoOriginal AssigneeLotes Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (6), Classifications (15), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetElectrical connectorUS 7147479 B1Abstract An electrical connector includes an insulation body and a conducting pin received in the insulation body. The conducting pin includes a body and a flexible contacting arm that flexibly and compressively contacts an external electronic element. On the backside of the flexible contacting arm, there is a flexible colloid that prevents the flexible contacting arm of the pins from becoming permanently deformed when the conducting pin is pressed. The electrical connector of the present invention has the following merits: there is a flexible colloid located on the backside of the flexible contacting arm to prevent the flexible contacting arm of the pins from becoming permanently deformed. The electrical connection between the conducting pin and the external electronic element is thereby assured.
an insulation body; and
a conducting pin received in the insulation body;
wherein the conducting pin includes a body and a flexible contacting arm that flexibly and compressively contacts an external electronic element, there is also a flexible colloid located on the backside of the flexible contacting arm that prevents the flexible contacting arm of the conducting pin from becoming permanently deformed, when the conducting pin is pressed.
2. The electrical connector as claimed in claim 1, wherein the flexible colloid is formed on the conducting pin via an insert molding method.
3. The electrical connector as claimed in claim 1, wherein the conducting pin is flake-shaped, and the flexible contacting arms are punched at the two ends of the conducting pin.
4. The electrical connector as claimed in claim 1, wherein the flexible contacting arms are formed at the two ends of the conducting pin via a bending method.
5. The electrical connector as claimed in claim 1, wherein the flexible contacting arm comprises a contacting point that contacts an external electronic element and a linking part that is connected with the body, and a concave space that is inward facing, located between the contacting point and the linking part.
6. The electrical connector as claimed in claim 1, wherein the conducting pins are arranged in the insulation body via a tilting method.
7. The electrical connector as claimed in claim 1, wherein there are two flexible contacting arms, and the flexible contacting arms extend from the two ends of the body.
8. The electrical connector as claimed in claim 7, wherein the flexible contacting arms extend from the two ends of the body in opposite directions.
9. The electrical connector as claimed in claim 1, wherein a receiving space is formed between the body of the conducting pin and each of the flexible contacting arms, and the flexible colloid is located in the receiving space.
10. The electrical connector as claimed in claim 9, wherein part of the body and the flexible contacting arm are wrapped in the flexible colloid.
The present invention relates to an electrical connector. In particular, this invention relates to an electrical connector that prevents the flexible contacting arm of the pins from becoming permanently deformed.
Some electronic products (such as computers) adopt a chip module having a land grid array (LGA). The conduct-contacting end of the chip module has a washer shape. The electrical connector used for connecting the chip module to the circuit board includes conducting pins that compressively contacts the conduct-contacting ends. Please refer to FIG. 1 and FIG. 2, which show a schematic diagram of the electrical connector of the prior art. The electrical connector includes an insulation body 80, a conducting pin 60, and a soldering ball 70 located below the conducting pin. The conducting pin has a flexible arm 601 protruding from the upper surface of the insulation body 80. The end of the flexible arm 601 has a contacting part 602. When the chip module (not shown in the figure) is assembled with the electrical connector, the chip module is pressed from up to down to electrically connect with the contacting part 602 located at the end of the flexible arm 601. Therefore, the chip module is electrically connected with the circuit board (not shown in the figure). However, the electrical connector has the following drawback. Because the forward force of the contacting part of the flexible arm is smaller and the contacting force from the chip mold board pressing on the conducting pin is larger, the flexible arm of the conducting pin is easily permanently deformed. Therefore, the function of the electrical connector is affected.
SUMMARY OF THE INVENTION One particular aspect of the present invention is to provide an electrical connector that prevents the flexible contacting arm of the pins from becoming permanently deformed.
The electrical connector of the present invention includes an insulation body and a conducting pin received in the insulation body. The conducting pin includes a body and a flexible contacting arm that flexibly and compressively contacts an external electronic element. On the backside of the flexible contacting arm, there is a flexible colloid that prevents the flexible contacting arm of the pins from becoming permanently deformed, when the conducting pin is pressed.
The electrical connector of the present invention has the following merits. There is a flexible colloid located on the backside of the flexible contacting arm to prevent the flexible contacting arm of the pins from becoming permanently deformed. The electrical connection between the conducting pin and the external electronic element is thereby assured.
FIG. 1 is a perspective view of the pin of the prior art;
FIG. 2 is a cross-sectional view of part of the electrical connector of the prior art;
FIG. 3 is a top view of the electrical connector of the present invention;
FIG. 4 is an assembly view of the conducting pin connected with the material belt;
FIG. 5 is a top view of the conducting pin connected with the flexible colloid;
FIG. 8 is a schematic view of the electrical connector of the present invention when not being pressed by the chip mold board and the circuit board;
FIG. 9 is a schematic view of the electrical connector of the present invention as it is being pressed by the chip mold board and the circuit board;
FIG. 10 is a side view of the conducting pin connected with the flexible colloid of another embodiment of the present invention;
FIG. 12 is an assembly view of the conducting pin connected with the material belt of FIG. 10; and
FIG. 13 is a schematic view of the electrical connector that is pressed with the chip mold board and the circuit board of another embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed illustration is disclosed by the attached figures and the embodiments.
Please refer to FIGS. 3�9. The electrical connector of the present invention is used for connecting the chip mold board 30 with the circuit board 40. The electrical connector includes an insulation body 10 and a conducting pin 20. The insulation body 10 has a receiving area 11 and a receiving hole 12 for individually receiving the chip mold board 30 and the conducting pin 20. The conducting pins are arranged in the insulation body 10 by a tilting method.
The conducting pin 20 is flake-shaped and includes a body 22, and two flexible contacting arms 23 that extend to the two ends of the body 22 in opposite directions. The flexible contacting arms 23 are located at the two ends of the conducting pin 20 and are formed by punching the conducting pin 20. The flexible contacting arm 23 includes a contacting point 231 for contacting with the chip mold board 30 and the circuit board 40, and a connecting part 232 connected with the body 22. There is a concave space 233 facing inward located between the contacting point 231 of the flexible contacting arm 23 that compressively contacts the chip mold board 30 and the connecting part 232. When the chip mold board 30 is pressed against the flexible contacting arm 23 of the conducting pin 20, the concave space 233 enhances the forward force between the contacting point 231 and the chip mold board 30 that are compressively contacted.
There is a connecting part 26 located on one side of the body 22 of the conducting pin 20. Before the conducting pin 20 is installed in the receiving hole 12 of the insulation body 10, the conducting pin 20 is connected with a material belt 21 via the connecting part 26. There is a receiving space 24 formed between the body 22 of the conducting pin 20 and the flexible contacting arm 23. There is a flexible colloid 25 located in the receiving space 25. The flexible colloid 25 is also located on the back side of the flexible contacting arm 23, and part of the body 22 and the flexible contacting arm 23 are wrapped up in the flexible colloid 25. The flexible colloid 25 is formed on the conducting pin 20 via an insert molding method (the flexible colloid 25 can also be formed in the receiving space via an embedding method or a similar method). When the chip mold board 30 and the circuit board 40 compressively contact the flexible contacting arm 23 of the conducting pin 20, the flexible colloid 25 prevents the flexible contacting arm 23 from becoming permanently deformed.
FIGS. 10�13 show the second embodiment of the present invention. The difference between the first embodiment and the second embodiment is that the flexible contacting arm 53 of the conducting pin 50 is formed by bending the two ends of the conducting pin 50. The flexible colloid 55 is received in the flexible contacting arm 53. When the chip mold board and the circuit board compressively contact the flexible contacting arm 53 of the conducting pin 50, the flexible colloid 55 prevents the flexible contacting arm 53 from becoming permanently deformed. The conducting pin 50 also includes a body 52. A connecting part 56 is located at each of the two sides of body 52, and the connecting part 56 is connected with the material belt 51. The flexible contacting arm 53 has a contacting point 531 that contacts the chip mold board and the circuit board. The flexible contacting arm 53 also has a linking part 532 that is connected with the body 52. A concave space 533 is located between the contacting point 531 and the linking part 532 of the flexible contacting arm 53 that compressively contacts the chip mold board 30.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4913656 *Apr 7, 1989Apr 3, 1990Rogers CorporationElectrical connectorUS5061192 *Dec 17, 1990Oct 29, 1991International Business Machines CorporationHigh density connectorUS5934934 *Aug 4, 1997Aug 10, 1999Communication Systems, Inc.Shielded couplersUS5938451 *May 6, 1997Aug 17, 1999Gryphics, Inc.Electrical connector with multiple modes of complianceUS6329607 *Sep 18, 1996Dec 11, 2001Tessera, Inc.Microelectronic lead structures with dielectric layersUS6409521 *Oct 26, 1999Jun 25, 2002Gryphics, Inc.Multi-mode compliant connector and replaceable chip module utilizing the same* Cited by examinerClassifications U.S. Classification439/66, 439/936, 439/591International ClassificationH01R13/40, H01R12/00Cooperative ClassificationY10S439/936, H01R13/2407, H01R43/16, H05K3/325, H01R12/714, H01R13/2435European ClassificationH01R23/72B, H01R43/16, H01R13/24A, H01R13/24DLegal EventsDateCodeEventDescriptionApr 20, 2010FPAYFee paymentYear of fee payment: 4Feb 15, 2006ASAssignmentOwner name: LOTES CO., LTD., TAIWANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HO, CHIEN-CHIH;REEL/FRAME:017263/0107Effective date: 20060207RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google