Electrical connector with an improved terminal block

• US 6,948,949 B1
• Filed: 05/19/2004
• Issued: 09/27/2005
• Est. Priority Date: 05/19/2004
• Status: Active Grant

• Current Assignee: BTX Technologies, Inc. (Resideo Technologies, Inc.)
• Original Assignee: BTX Technologies, Inc. (Resideo Technologies, Inc.)
• Inventors: Poulin, Chris, Schwartz, Greg, Salvato, Dominick H., Daly, Peter R.
• Primary Examiner(s): Gushi, Ross
• Assistant Examiner(s): Nguyen, Phuongchi
• Application Number:
  US10/850,578
• Time in Patent Office: 496 Days
• Field of Search: 439/76.1, 439/813, 439/565, 439/881, 439/654, 439/876, 439/620, 439/638, 439/76.2, 439/75, 439/814
• US Class Current: 439/76.1
• CPC Class Codes: H01R 12/515 Terminal blocks providing connections to wires or cables
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 4/36 Conductive members located under tip of screw
• CPC Class Codes: H01R 9/2491 Terminal blocks structurally associated with plugs or sockets

Abstract

An electrical connector for electrical connection to an electronic device includes: (1) a terminal block assembly formed of: (a) a connector base having first conductive members associated therewith; (b) a printed circuit board that includes a plurality of conductive paths formed thereon and is coupled to the connector base such that the first conductive members contact the plurality of conductive paths; and (c) one or more terminal blocks each formed of a housing that includes first openings for receiving second conductive members and a plurality of contacts disposed therein along with a plurality of contact fasteners that can be tightened so as to apply a force against the second conductive members so that they are brought into contact with and releasably fixed to respective contacts resulting in the first and second conductive members being electrically connected via the plurality of conductive paths; and (2) a connector housing for receiving and containing the terminal block assembly.

Claims

1. An electrical connector for electrical connection to an electronic device comprising:

a terminal block assembly comprising;

a connector base having first conductive members associated with a shaped body portion of the connector base, the body portion extending outwardly from a connector base substrate and having a profile defined by a height and width thereof;

a printed circuit board that includes a plurality of conductive paths formed thereon and is coupled to the connector base such that the first conductive members contact the plurality of conductive paths;

one or more terminal blocks each formed of a housing that includes first openings for receiving second conductive members and a plurality of contacts disposed therein, the contacts contacting the plurality of conductive paths; and

a plurality of contact fasteners that can be tightened so as to apply a force against the second conductive members so that they are brought into contact with and releasably fixed to respective contacts resulting in the first and second conductive members being electrically connected via the plurality of conductive paths, wherein a profile, defined by a height and a width thereof, of each of the printed circuit board and the one or more terminal blocks is less than the profile of the connector body portion; and

a connector housing for receiving and containing the terminal block assembly in such away that at least the one or more terminal blocks and the printed circuit board are contained within an interior of the housing.

2. The electrical connector according to claim 1, wherein the connector base is in the form of a female connector base having connector openings for receiving complementary male contacts associated with the electronic device, the first conductive members being in the form of a plurality of conductive pins that are received within through openings formed in the printed circuit board resulting in the conductive pins being electrically connected to the plurality of conductive paths.

3. The electrical connector according to claim 1, wherein the connector base is in the form of a male connector base having male contacts for reception in complementary female contacts associated with the electronic device, the first conductive members being in the form of a plurality of conductive pins that are received within through openings formed in the printed circuit board resulting in the conductive pins being electrically connected to the plurality of conductive paths.

4. The electrical connector according to claim 1 comprising a grid array type connector.

5. The electrical connector according to claim 1, wherein the connector housing is formed of two parts with each part containing a plurality of fastening elements for securely yet releasably attaching the two parts together with the terminal block assembly being fixed in place between the two attached parts.

6. The electrical connector according to claim 5, wherein the two parts are mirror images of one another.

7. The electrical connector according to claim 1, wherein the contact fasteners comprise set screws.

8. The electrical connector according to claim 1, wherein the terminal block housing includes at least one stop formed on a surface thereof that faces the printed circuit board when the terminal block housing is coupled thereto, the at least one stop serving to space the terminal block housing a predetermined distance from the printed circuit board.

9. The electrical connector according to claim 1, wherein the terminal block housing includes locating features that serve to locate one terminal block housing relative to another one when the two are combined to form the terminal block assembly.

10. The electrical connector according to claim 1, wherein the terminal block housing includes a plurality of first openings for receiving respective contact fasteners;

a plurality of second openings for receiving ends of the second conductive members and a plurality of third openings for containing the contacts, each second opening being axially aligned and in direct communication with one third opening so as to permit the end of the second conductive member to be inserted and disposed adjacent a length of one contact, wherein one first opening forms an entrance into one third opening to permit the contact fastener to be placed in contact with the inserted end of the second conductive member.

11. The electrical connector according to claim 10, wherein the first opening is formed substantially perpendicular to the third opening.

12. The electrical connector according to claim 10, wherein each second opening is an inwardly tapered opening.

13. The electrical connector according to claim 10, wherein the plurality of first openings are formed in a staggered relationship with some of the first openings being countersunk.

14. The electrical connector according to claim 10, wherein the terminal block housing includes a plurality of pairs of locating and retaining tabs, with an intermediate section of the contact being disposed and held between the pair of tabs in a friction tight manner, each contact being a bent structure formed of three sections, namely, a first section that extends away from the terminal block and is received in the third opening and a third section that is received within the third opening, the intermediate section being between the first and third sections.

15. The electrical connector according to claim 1, wherein the printed circuit board includes a set of first through openings formed therein for receiving the first conductive members and a set of second through openings for receiving ends of the contacts.

16. The electrical connector of claim 15, wherein the first conductive members comprise conductive pins that are received in the set of first through openings, each first through opening being conductively connected to a first end of one of the conductive paths formed on a face of the printed circuit board, with a second end of the one conductive path being conductively connected to one of the second through openings.

17. The electrical connector of claim 16, wherein the second through openings are arranged in two rows, one row being formed along an upper edge of the printed circuit board, the other row being formed along a lower edge of the printed circuit board.

18. The electrical connector of claim 17, wherein each conductive path extends between one of the first through opening and one of the second through openings, thereby electrically connecting one of the first conductive members to one of the second conductive members.

19. A terminal block assembly for use in an electrical connector comprising:

a base portion having first conductive members associated therewith and extending outwardly therefrom;

a printed circuit board that includes a plurality of conductive paths formed thereon and is coupled to the base portion such that the first conductive members contact the plurality of conductive paths;

one or more terminal blocks each including a housing that includes first openings for receiving second conductive members and a plurality of contacts fixedly disposed therein, the contacts contacting the plurality of conductive paths;

a plurality of contact fasteners received within second openings formed in the terminal block housing such that they can be tightened to apply a force against the second conductive members for bringing them into contact with and releasably fixing the second conductive members to respective contacts resulting in the first and second conductive members being electrically connected via the plurality of conductive paths; and

wherein the printed circuit board is vertically orientated relative to the connector base and the one or more terminal blocks and at least distal ends of the second conductive members are axially aligned with the first conductive members, along at least a substantial length thereof.

20. The terminal block assembly according to claim 19, wherein the base portion is in the form of a female connector base having connector openings for receiving complementary male contacts associated with the electronic device, the first conductive members being in the form of a plurality of conductive pins that are received within through openings formed in the printed circuit board resulting in the conductive pins being electrically connected to the plurality of conductive paths.

21. The terminal block assembly according to claim 19, wherein the base portion is in the form of a male connector base having male contacts for reception in complementary female contacts associated with the electronic device, the first conductive members being in the form of a plurality of conductive pins that are received within through openings formed in the printed circuit board resulting in the conductive pins being electrically connected to the plurality of conductive paths.

22. The terminal block assembly according to claim 19, wherein the contact fasteners comprise set screws.

23. The terminal block assembly according to claim 19, wherein the terminal block housing includes a plurality of third openings for containing the contacts, each first opening being axially aligned and in direct communication with one third opening so as to permit the end of the second conductive member to be inserted and disposed adjacent a length of one contact, wherein one second opening forms an entrance into one third opening to permit the contact fastener to be placed in contact with the inserted end of the second conductive member.

24. The terminal block assembly according to claim 23, wherein the first opening is formed substantially perpendicular to the third opening and the plurality of first openings are formed in a staggered relationship with some of the first openings being countersunk.

25. The terminal block assembly according to claim 19, wherein distal ends of the contacts that mate with the conductive paths of the printed circuit board are axially aligned with the first conductive members, at least along a substantial length thereof.

26. The terminal block assembly according to claim 25, wherein distal ends of the second conductive members and distal ends of the contacts are axially aligned with the entire length of the first conductive members.

27. The terminal block assembly according to claim 19, wherein the printed circuit board includes a set of first through openings formed therein for receiving the first conductive members and a set of second through openings for receiving ends of the contacts.

28. The terminal block assembly of claim 27, wherein the first conductive members comprise conductive pins that are received in the set of first through openings, each first through opening being conductively connected to a first end of one of the conductive paths formed on a face of the printed circuit board, with a second end of the one conductive path being conductively connected to one of the second through openings.

29. The terminal block assembly of claim 28, wherein the plurality of conductive paths are divided into two sets of conductive paths, one set of conductive paths being formed on one face of the printed circuit board, the other set of conductive paths being formed on an opposite face of the printed circuit board.

30. The terminal block assembly of claim 28, wherein the second through openings are arranged in two rows, one row being formed along an upper edge of the printed circuit board, the other row being formed along a lower edge of the printed circuit board.

31. The terminal block assembly of claim 30, wherein each conductive path extends between one of the first through opening and one of the second through openings, thereby electrically connecting one of the first conductive members to one of the second conductive members.

32. A vertical PC mount connector for electrical connection to an electronic device comprising:

a terminal block assembly comprising;

a connector base having first conductive members associated with a shaped body portion of the connector base, the body portion extending outwardly from a connector base substrate;

a printed circuit board that includes a plurality of conductive paths formed thereon and is coupled to the connector base such that the first conductive members contact the plurality of conductive paths by being disposed in first through holes formed therein;

one or more terminal blocks each formed of a housing that includes first openings for receiving second conductive members and a plurality of contacts disposed therein, the contacts contacting the plurality of conductive paths by disposing first end sections of the contacts in second through holes formed therein;

a plurality of contact fasteners that can be tightened so as to apply a force against the second conductive members so that they are brought into contact with and releasably fixed to respective contacts resulting in the first and second conductive members being electrically connected via the plurality of conductive paths;

a connector housing for receiving and containing the terminal block assembly in such away that at least the one or more terminal blocks and the printed circuit board are contained within an interior of the housing; and

wherein the printed circuit board is vertically mounted relative to the connector base and the one or more terminal blocks and is of a back-to-back through hole construction since the connector base is mounted on one face of the printed circuit board and the one or more terminal blocks are mounted on the other face of the printed circuit board.

33. The vertical PC mount connector according to claim 32, wherein the body portion of the connector base that is received and contained within an interior of the housing has a profile that is defined by a height and width thereof and wherein a profile, defined by a height and a width thereof, of each of the printed circuit board and the one or more terminal blocks is less than the profile of the body portion of the connector base.

34. The vertical PC mount connector according to claim 32, wherein the contact is substantially S-shaped and is formed of the first end section, a second end section opposite the first end section that contacts the distal end of the second conductive member and an intermediate section that joins the first and second end sections, wherein the both the first and second end sections are substantially axially aligned with the first conductive members.

35. The vertical PC mount connector according to claim 32, wherein the first through holes are arranged in a number of rows that are disposed between rows of the second through holes that are formed at upper and lower edges of the printed circuit board, respectively.

36. The vertical PC mount connector according to claim 35, wherein the first conductive members are arranged in a number of rows and the contacts are arranged in a number of rows less than the number of rows of the first conductive members.

37. A method of electrically connecting a first electronic component to a second electronic component comprising the steps of:

providing a terminal block assembly including;

(a) a base portion having first conductive members associated therewith and extending outwardly therefrom;

(b) one or more terminal blocks each including a housing that includes first openings for receiving second conductive members and a plurality of contacts fixedly disposed therein; and

(c) a plurality of contact fasteners received within second openings formed in the terminal block housing;

inserting distal ends of the second conductive members within respective first openings such that ends of the second conductive members are disposed adjacent the contacts and such that the distal ends of the second conductive members are axially aligned with the first conductor members, at least along a substantial length thereof; and

tightening the contact fasteners to apply a force against the second conductive members for bringing them into contact with and releasably fixing them to respective contacts resulting in the first and second conductive members being electrically connected via conductive paths formed on a printed circuit board that is disposed between the base portion and the one or more terminal blocks in a vertical orientation, the printed circuit board being of a vertical back-to-back through hole design such that the first and second conductive members are received within first and second through holes, respectively.