ELECTRICAL CONNECTOR WITH INDUCTANCE AND CONTACT MODULE USED IN THE ELECTRICAL CONNECTOR

• US 20110151717A1
• Filed: 12/21/2010
• Published: 06/23/2011
• Est. Priority Date: 12/21/2009
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: GE, LIN-ZHONG, SHIH, YUEH-SHAN
• Granted Patent: US 8,535,100 B2
• Time in Patent Office: Days
• US Class Current: 439/620.07
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/7193 with ferrite filters
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45

Abstract

An electrical connector (100) to be mounted on an exterior PCB (126) is disclosed. The electrical connector includes an insulating housing (120) having a front face defining a mating port (122) to receive a plug therein; a number of mating contacts (142) received in said insulating housing and extending into said mating port for mating with a plug inserted therein; a first internal PCB (144) having a front face on which said mating contacts are mounted; a second internal PCB (145) with a ferromagnetic core embedded therein and forming an inductance; a number of terminals (149) extending out to be mounted to said exterior PCB. A number of signal channels are formed between the mating contacts (142) and the terminals (149) with the inductance electrically connected therein.

Claims

1. An electrical connector to be mounted on an exterior PCB, comprising:

an insulating housing having a front face defining a mating port to receive a plug therein;

a plurality of mating contacts received in said insulating housing and extending into said mating port for mating with a plug inserted therein;

a first internal PCB having a front face on which said mating contacts are mounted;

a second internal PCB with a ferromagnetic core embedded therein and forming an inductance;

a plurality of terminals extending out to be mounted to said exterior PCB,

wherein signal channels are formed between the mating contacts and the terminals with said inductance electrically connected therein.

2. The electrical connector as claimed in claim 1, wherein the second internal PCB parallelly stacked behind the first internal PCB and the electrical connector further comprises a plurality of conductive pins mechanically and electrically connecting the first and the second internal PCBs.

3. The electrical connector as claimed in claim 2, wherein the terminals are mounted to and electrically connecting the first internal PCB.

4. The electrical connector as claimed in claim 1, comprising at least two said signal channels, each channel comprising two said inductances which comprises an isolating transformer and a common mode choke.

5. The electrical connector as claimed in claim 1, comprising at least two said signal channels, each said signal channel comprising one said inductance and a common mode choke, said common mode chokes mounted onto said first internal PCB through SMT.

6. The electrical connector as claimed in claim 1, comprising at least two said signal channels, each said signal channel comprising one said inductance and a common mode choke, said common mode chokes mounted onto said second internal PCB through SMT.

7. The electrical connector as claimed in claim 1, comprising four said signal channels and a third internal PCB with two ferromagnetic cores embedded therein and forming two isolating transformers, the second internal PCB having two said inductances, wherein the two said inductances are in forms of isolating transformer, each of the signal channels connecting one of said insolating transformers respectively.

8. The electrical connector as claimed in claim 7, comprising four common mode chokes, wherein each of the four common mode chokes is serially connected in one of the four signal channels.

9. The electrical connector as claimed in claim 8, wherein the four common mode chokes are mounted onto the first internal PCB through SMT.

10. The electrical connector as claimed in claim 8, wherein the four common mode chokes are mounted onto the second and the third internal PCBs through SMT.

11. The electrical connector as claimed in claim 8, wherein the four common mode chokes are manufactured with ferromagnetic cores embedded in the second and the third internal PCBs.

13. The contact module as claimed in claim 10, comprising a plurality terminals and forming signal channels with the inductances connected therein, wherein the set of mating contacts act a first side of the signal channels and the plurality of terminals acts as an opposite second side of the signal channels.

14. The contact module as claimed in claim 11, wherein the plurality of terminals are mounted to the first internal PCB.

12. A contact module for being used in a receptacle connector, comprising:

a plurality of mating contacts for mating with a plug being inserted into the receptacle connector;

a first internal PCB having a front face on which said mating contacts are mounted;

a second internal PCB stacked behind the first internal PCB, the second PCB having a ferromagnetic core embedded therein, a plurality of printed circuits formed on opposite side faces thereof and a plurality of conductors extending therethrough and electrically connecting said printed circuits to form circuits winding around the ferromagnetic core, thereby forming an inductance.

15. A PCB (printed circuit board) assembly for use with a modular jack, comprising:

a first PCB;

a second PCB stacked, in a front-to-back direction, behind the first PCB in a parallel relation;

a plurality of transformers embedded in the second PCB;

a first set of contacts located around a first region and extending through both said first and second PCBs; and

a second set of contacts located around a second region and extending through both said first and second PCBs;

wherein

the first PCB is larger than the second PCB with comparably a first additional area on which a footer structure is mounted for connecting the first PCB to a main PCB, and a second addition area on which chokes are mounted.

17. The PCB assembly as claimed in claim 15, wherein said transformers are located between the first set of contacts and the second set of contacts in a vertical direction perpendicular to said front-to-back direction.

18. The PCB assembly as claimed in claim 15, wherein said first area is located on a lower portion of the first PCB while said second area is located on an upper portion of the first PCB.

19. The PCB assembly as claimed in claim 15, wherein a third PCB is stacked, in said front-to-back direction, behind the second PCB under condition that both said first set of contacts and said second set of contacts extend through said third PCB.

20. The PCB assembly as claimed in claim 19, wherein said third PCB further includes transformers embedded therein.

16. The PCB assembly as claimed in clam 15, wherein each of the first set of contacts forwardly extends to provide an oblique resilient contacting section for mating with a plug.