Electrical connector with separate contact mounting and compensation boards

• US 20100151707A1
• Filed: 12/12/2008
• Published: 06/17/2010
• Est. Priority Date: 12/12/2008
• Status: Active Grant

• Current Assignee: Hubbell, Inc.
• Original Assignee: Hubbell, Inc.
• Inventors: Dupuis, Joseph E., Gribble, Christopher W., Khan, Naved S., O'Connor, Douglas P., AbuGhazaleh, Shadi A.
• Granted Patent: US 7,794,286 B2
• Time in Patent Office: Days
• US Class Current: 439/76.100
• CPC Class Codes: H01R 13/506 assembled by snap action of the parts
• CPC Class Codes: H01R 13/6272 comprising a single latching arm
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6599 Dielectric material made conductive, e.g. plastic material coated with metal
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45
• CPC Class Codes: H01R 4/242 the contact members being plates having a single slot

Abstract

An electrical connector includes a housing having a plug receiving cavity with an open end for receiving a plug and with an inner end spaced from the open end, and having a forward chamber outside of the cavity and adjacent the open end. A mounting circuit board is in the housing adjacent the inner end. A plurality of pairs of electrical jack contacts have mounting ends engaging the mounting circuit board, plug contacting portions extending through the cavity from the mounting end toward the open end, and free ends extending from the contacting portion into the forward chamber. A compensation circuit board is mounted in the forward chamber of the housing outside of the plug receiving cavity, and has a compensation circuit with conductive pads. The free ends of the jack contacts engage the conductive pads. A spring in the forward chamber biases the compensation circuit board towards the free ends of the jack contacts.

Claims

1. An electrical connector, comprising:

a housing having a plug receiving cavity with an open end for receiving a plug and with an inner end spaced from said open end, and having a forward chamber outside of said cavity and adjacent said open end;

a mounting circuit board in said housing adjacent said inner end;

a plurality of pairs of electrical jack contacts, each of said jack contacts having a mounting end engaging said mounting circuit board, a plug contacting portion extending through said cavity from said mounting end toward said open end, and a free end extending from said contacting portion into said forward chamber;

a compensation circuit board mounted in said forward chamber of said housing outside of said plug receiving cavity having a compensation circuit thereon with conductive pads, said free ends of said jack contacts engaging said conductive pads; and

a spring in said forward chamber biasing said compensation circuit board towards said free ends of said jack contacts.

2. An electrical connector according to claim 1 wherein

said spring comprises a base leg engaging said housing and an angled leg engaging said compensation circuit board.

3. An electrical connector according to claim 2 wherein

said angled leg is acutely angled relative to said base leg.

4. An electrical connector according to claim 2 wherein

said angled leg and said base leg extend from a bend unitarily connected to said legs.

5. An electrical connector according to claim 2 wherein

said angled leg comprises a main portion underlying a bottom of said compensation circuit board and two end portions extending from said main portion and engaging opposite ends of said compensation circuit board.

6. An electrical connector according to claim 5 wherein

said end portions extend from said main portion adjacent a free end of said angled leg and adjacent an end of said angled leg connected to said base leg.

7. An electrical connector according to claim 2 wherein

said housing comprises a nose housing part defining said cavity and said forward chamber, said nose housing part having a spring retainer in said forward chamber with oppositely directed abutments;

and

said base leg comprises a resilient tang and a shoulder engaging said abutments to restrain movement of said spring.

8. An electrical connector according to claim 1 wherein

each of said jack contacts comprises a bend forming a plug contact engagement point, said engagement point being closer to said free end than said mounting end on each said jack contact.

9. An electrical connector according to claim 1 wherein

insulation displacement contacts extend from a surface of said mounting circuit board opposite to a surface thereof from which said jack contacts extend, said mounting circuit board having conductive traces connecting the respective jack contacts and the respective insulation displacement contacts.

10. An electrical connector according to claim 9 wherein

said insulation displacement contacts are mounted in an insulator housing part of said housing, and are covered by a stuffer cap having an electrically conductive shield on an outer surface thereof.

11. An electrical connector according to claim 1 wherein

said plug receiving cavity has a longitudinal axis extending from said open end to said inner end;

and

said compensation circuit board extends at an acute angle relative to said longitudinal axis.

12. An electrical connector according to claim 11 wherein

said acute angle is approximately 40 degrees.

13. An electrical connector according to claim 1 wherein

said housing comprises a comb insert adjacent said open end and having slots opening toward said inner end through which said free ends of said jack contacts extend.

14. An electrical connector according to claim 1 wherein

said jack contacts extend from an over mold in one direction into said cavity and in an opposite direct to engage said mounting circuit board.

15. An electrical connector according to claim 1 wherein

said jack contacts comprise first, second, third, fourth, fifth, sixth, seventh and eighth contacts in an ordered array, said first and second contacts crossing one another without touching, said fourth and fifth contacts crossing one another without touching and said seventh and eighth contact crossing one another without touching, said third and sixth contacts extend through said cavity without crossing another of said jack contacts.

16. An electrical connector according to claim 1 wherein

said jack contacts are insulated from one another by being mounted in and connected by an over mold.

17. An electrical connector according to claim 1 wherein

each of said jack contacts comprises a generally V-shaped bend forming a plug engagement point at an apex thereof with a forward portion of said bend extending at an angle substantially equal to an angular orientation of said compensation circuit board such that said forward portion and said compensation circuit board are substantially parallel.

18. An electrical connector according to claim 1 wherein

said housing comprises a nose housing part having at least one projection extending rearwardly from a rear surface of said nose housing part and through an opening in said mounting circuit board, said projection pressing said mounting circuit board against said rear surface.

19. An electrical connector according to claim 1 wherein

said mounting circuit board includes a ground plane plate adjacent electrical conductive traces on said mounting circuit board connecting said jack contacts with insulation displacement contacts coupled to said mounting circuit board, said ground plane plate controlling and altering common and differential mode impedance in a predetermined manner.

20. An electrical connector according to claim 1 wherein

each of said jack contacts generates a force on said compensation circuit board less than ten percent of a force generated by said spring on said compensation circuit board.

21. An electrical connector, comprising:

a housing having a plug receiving cavity with an open end for receiving a plug and with an inner end spaced from said open end, having a forward chamber outside of said cavity and adjacent said open end and having insulator housing part, said cavity having a longitudinal axis extending from said open end to said inner end;

a mounting circuit board mounted in said housing adjacent said inner end and having conductive traces thereon;

a plurality of pairs of resilient electrical jack contacts, each of said jack contacts having a mounting end engaging said mounting circuit board, a plug contacting portion extending through said cavity from said mounting end toward said open end, and a free end extending from said contacting portion into said forward chamber, each of said jack contacts having a bend forming a plug contact engagement point closer to said free end than said mounting end thereof, said jack contacts including first, second, third, fourth, fifth, sixth, seventh and eighth contacts in an ordered array, said first and second contacts crossing one another without touching, said fourth and fifth contacts crossing one another without touching and said seventh and eighth contact crossing one another without touching, said third and sixth contacts extending through said cavity without crossing another of said jack contacts, said jack contacts being insulated from one another by being mounted in and connected by an over mold;

a compensation circuit board mounted in said forward chamber at an acute angle to said longitudinal axis and outside of said plug receiving cavity, said compensation circuit board having a compensation circuit thereon with conductive pads, said free ends of said jack contacts engaging said conductive pads;

a spring in said forward chamber biasing said compensation circuit board towards said free ends of said jack contacts, said spring having a base leg engaging said housing and an angled leg engaging said compensation circuit board, said angled leg being acutely angled relative to said base leg, said angled leg and said base leg extending from a bend unitarily connected to said legs;

insulation displacement contacts being mounted in an insulator housing part and extending from a surface of said mounting circuit board opposite to a surface thereof from which said jack contacts extend, said conductive traces connecting the respective jack contacts and the respective insulation displacement contacts;

a stuffer cap having an electrically conductive shield on an outer surface thereof, engaging said insulator housing part and covering said insulation displacement contacts; and

a comb insert in said housing adjacent said open end and having slots opening toward said inner end receiving said free ends of said jack contacts.

22. An electrical connector according to claim 21 wherein

said angled leg comprises a main portion underlying a bottom of said compensation circuit board and two end portions extending from said main portion and engaging opposite ends of said compensation circuit board.

23. An electrical connector according to claim 22 wherein

said end portions extend from said main portion adjacent a free end of said angled leg and adjacent an end of said angled leg connected to said base leg.

24. An electrical connector according to claim 22 wherein

said housing comprises a nose housing part defining said plug receiving cavity and said forward chamber, said nose housing part having a spring retainer therein with oppositely directed abutments;

and

said base leg comprises a resilient tang and a shoulder engaging said abutments to restrain movement of said spring.