Receptacle sockets for twist-lock connectors

• US 10,164,374 B1
• Filed: 10/31/2017
• Issued: 12/25/2018
• Est. Priority Date: 10/31/2017
• Status: Active Grant

• Current Assignee: Express Imaging Systems, LLC
• Original Assignee: Express Imaging Systems, LLC
• Inventors: Reed, William G.
• Primary Examiner(s): Nguyen, Truc
• Application Number:
  US15/799,744
• Time in Patent Office: 420 Days
• Field of Search: None
• CPC Class Codes: H01R 12/714 with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
• CPC Class Codes: H01R 13/213 by bayonet connection
• CPC Class Codes: H01R 13/5812 the cable clamping being achieved by mounting the separate part on the housing of the coupling device
• CPC Class Codes: H01R 13/625 Casing or ring with bayonet engagement
• CPC Class Codes: H01R 13/639 Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
• CPC Class Codes: H01R 13/6608 with built-in single component H01R13/68, H01R13/70 take precedence
• CPC Class Codes: H01R 24/005 requiring successive relative motions to complete the coupling, e.g. bayonet type
• CPC Class Codes: H01R 33/9456 for bayonet type coupling devices
• CPC Class Codes: H01R 43/205 with a panel or printed circuit board
• CPC Class Codes: H01R 43/26 for engaging or disengaging the two parts of a coupling device structural association with two-part coupling device H01R13/629

Abstract

A twist-lock connector that includes a printed circuit board component with one or more flexible portions is disclosed. The flexible portions may be formed within an interior portion of the printed circuit board by routing or otherwise removing a portion of the printed circuit board to create one or a plurality of side for each flexible portion. One or more electrical contacts may be positioned on each flexible portion and arranged to be electrically coupled with male electrical contacts that are part of a corresponding twist-lock plug, thereby deflecting the flexible portions. When deflected, the flexible portions exert an opposing, biasing force in the direction of the male electrical contacts to maintain contact there between. One or more of a mounting base and a support base may be clamped to either or both sides of the printed circuit board to provide further stability for the flexible portions.

Claims

1. A twist-lock connector that receives a set of male electrical contacts, the twist-lock connector comprising:

a set of female electrical receptacles that correspond to the set of male electrical contacts, the set of female electrical receptacles sized and dimensioned to receive the set of male electrical contacts, and the set of female electrical receptacles are physically engageable with the set of male electrical contacts when each of the male electrical contacts in the set of male electrical contacts are inserted into respective ones of the female electrical receptacles in the set of female electrical receptacles and rotated;

a primary printed circuit board that has a first face and an opposing second face, the first face directed towards the female electrical receptacles; and

a set of electrical connectors that correspond to the set of male electrical contacts, each of the electrical connectors positioned on respective ones of a set of flexible portions of the primary printed circuit board, each of the flexible portions resiliently deform responsive to one of the male electrical contacts contacting and exerting a force on the electrical connector positioned on the flexible portion to provide a biasing force that urges the electrical connector toward the male electrical contact.

2. The twist-lock connector of claim 1 wherein the set of female electrical receptacles includes three female electrical receptacles arranged around a central point.

3. The twist-lock connector of claim 1 wherein the set of electrical connectors are comprised of brass plated with tin.

4. The twist-lock connector of claim 1 wherein each of the flexible portions of the primary circuit board is separated from remaining parts of the primary circuit board on a plurality of sides.

5. The twist-lock connector of claim 1 wherein each flexible portion comprises a proximal end and a distal end, the proximal end attached to the remaining part of the primary circuit board and the distal end separated therefrom.

6. The twist-lock connector of claim 5 wherein, for each of the flexible portions, the electrical connector is located proximate the distal end.

7. The twist-lock connector of claim 1 wherein the primary circuit board is comprised of a composite mat that has a matrix, wherein the primary circuit board includes a pattern of elements, and wherein the pattern of elements is rotated by a defined amount relative to the matrix of the composite mat.

8. The twist-lock connector of claim 7 wherein the matrix includes a first axis and a second axis, wherein each flexible portion extends in a direction from a proximal end to a distal end, and wherein the pattern of elements on the primary printed circuit board is rotated relative to the matrix of the composite mat such that the respective direction in which each flexible portion extends is parallel to at least one of the first axis and the second axis of the matrix.

9. The twist-lock connector of claim 1, further comprising:

a secondary circuit board located on an opposite side of the female receptacles from the primary circuit board, the secondary circuit board includes a plurality of electrical connector pads arranged around a central axis.

10. The twist-lock connector of claim 9 wherein at least a subset of the plurality of electrical connector pads provides dimming control for an electrically coupled luminaire.

11. The twist-lock connector of claim 9, further comprising:

a support base that is clamped next to the second face of the primary printed circuit board and limits deflection of the flexible portions away from the female electrical receptacles.

12. The twist-lock connector of claim 11, further comprising:

a mounting base that includes the set of female receptacles, the mounting base located opposite the support base across the primary printed circuit board.

13. The twist-lock connector of claim 12, further comprising:

a screw that is threaded through and operable to clamp the support base, the primary printed circuit board, and the mounting base, wherein the mounting base is rotatable relative to the screw.

14. The twist-lock connector of claim 13, further comprising:

a twist-lock plug, the twist-lock plug includes the set of male electrical contacts, wherein the twist-lock plug further includes a photo-control component, and the mounting base is rotatable to selectively position the photo-control component.

15. The twist-lock connector of claim 11 wherein the flexible portions transition to a deformed position when the set of male electrical contacts are rotatably engaged with the set of female electrical receptacles.

16. The twist-lock connector of claim 1 wherein the electrical connectors are comprised of one or more opposing portions of the primary printed circuit board separated by a channel, wherein the channel is sized and positioned to engage with a respective one of the male electrical contacts when the male electrical contact is rotatably engaged with a corresponding one of the female electrical receptacles.

17. The twist-lock connector of claim 1 wherein each of the respective flexible portions is comprised of an internal tab that includes a fixed end and a free end.

18. The twist-lock connector of claim 1 wherein at least one of the electrical connectors is comprised of an electrical post.

19. The twist-lock connector of claim 18, wherein the electrical post include a proximal end and an opposing distal end, wherein the proximal end is located relatively closer to the primary circuit board and the distal end is located relatively away from the primary circuit board, and wherein the distal end includes a chamfer or tapered portion at an end that is directed away from the primary circuit board.

20. A method of physically coupling a twist-lock connector with a twist-lock plug, the twist-lock plug including a plurality of male electrical contacts, the twist-lock connector including a plurality of female electrical receptacles and a primary printed circuit board that includes a set of flexible portions, such flexible portions including an electrical contact and aligning with respective ones of the female electrical receptacles, the method comprising:

inserting each of the male electrical contacts of the twist-lock plug into respective ones of the female electrical receptacles, the female electrical receptacles guide the male electrical contacts towards the electrical contacts on respective ones of the flexible portions;

twisting the twist-lock plug with respect to the twist-lock connector, such twisting which securely engages the male electrical contacts with the respective ones of the female electrical receptacles; and

deforming at least one of the flexible portions by the male electrical contacts into a deformed position responsive to one of the male electrical contacts contacting and exerting a force on the electrical contact positioned on the flexible portion.

21. The method of claim 20 wherein deforming at least one of the flexible portions comprises deforming at least one of the flexible portions in which the at least one flexible portion is separated from remaining parts of the primary circuit board on a plurality of sides.

22. The method of claim 20 wherein deforming at least one of the flexible portions comprises deforming the at least one of the flexible portions in the primary printed circuit board, wherein the at least one of the flexible portions comprises a proximal end and a distal end, the proximal end attached to the remaining part of the primary circuit board and the distal end separated therefrom.

23. The method of claim 22 wherein the primary circuit board is comprised of a composite mat that has a matrix that includes a first axis and a second axis, and wherein deforming at least one of the flexible portions comprises deforming the at least one of the flexible portions of the primary printed circuit board, wherein the primary circuit board includes a pattern of elements, and wherein the pattern of elements is rotated by a defined amount relative to the matrix of the composite mat.

24. The method of claim 20, further comprising:

clamping a support base next to the primary printed circuit board, the support base which limits deflection of the flexible portions away the female electrical receptacles.

25. The method of claim 24, further comprising:

clamping a mounting base to the primary printed circuit board, the mounting base which includes the plurality of female receptacles, the mounting base which is located opposite the support base across the primary printed circuit board.

26. The method of claim 20 wherein the electrical contacts are comprised of one or more portions of the primary printed circuit board separated by a channel, further comprising:

engaging respective ones of the male electrical contacts within corresponding channels when the male electrical contact is rotatably engaged with a corresponding one of the female electrical receptacles.

27. A method of manufacturing a twist lock connector that includes a mounting base, a support base, and a primary printed circuit board, the mounting base which includes at least one female electrical receptacle, the method comprising:

routing one or more portions of the primary printed circuit board to form one or more cut out sections, each cut out section surrounding a respective flexible portion of the primary printed circuit board in which each respective flexible portion resiliently deforms responsive to a force being applied to the flexible portion;

mounting the primary printed circuit board between the mounting base and the support base; and

clamping the mounting base, the primary printed circuit board, and the support base such that each of the at least one female electrical receptacles is aligned with respective ones of the flexible portions of the primary printed circuit board.

28. The method of claim 27 wherein routing one or more portions of the primary printed circuit board to form one or more cut out sections includes routing at least three portions of the primary printed circuit board to form at least three flexible portions of the primary printed circuit board.

29. The method of claim 27, further comprising:

electrically coupling a set of electrical connectors to the primary printed circuit board, at least one electrical connector in the set of electrical connectors being electrically coupled to one of the flexible portions of the primary printed circuit board, wherein at least one of the electrical connectors in the set of electrical connectors is comprised of brass plated with tin.

30. The method of claim 27, wherein the primary printed circuit board is comprised of a composite mat that has a matrix that includes a first axis and a second axis and wherein the primary printed circuit board includes a pattern of elements, the method further comprising:

rotating the pattern of elements in the primary printed circuit board a defined amount relative to the matrix of the composite mat.

31. The method of claim 30 wherein the matrix includes a first axis and a second axis, wherein each flexible portion extends in a direction from a proximal end to a distal end, and wherein rotating the pattern of elements on the primary printed circuit board includes rotating the pattern of elements on the primary printed circuit board such that the respective direction in which each flexible portion extends is parallel to at least one of the first axis and the second axis of the matrix.

32. The method of claim 27 wherein clamping the mounting base, the primary printed circuit board, and the support base further includes clamping the support base and the primary printed circuit board to thereby limit an amount of deflection of the flexible portions of the primary printed circuit board away from the female electrical receptacles in response to the force being applied to the flexible portions.