Methods and systems for terminal-free circuit connectors and flexible multilayered interconnect circuits

Patent metadata

Field	Value
Publication number	US-11876312-B2
Application number	US-202117487652-A
Country	US
Kind code	B2
Filing date	Sep 28, 2021
Priority date	Oct 2, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A connector for connecting a flexible interconnect circuit includes a base, having a first set of protrusions and a second set of protrusions. The first set of protrusions and the second set of protrusions are configured to secure the flexible interconnect circuit at a first set of apertures and a second set of apertures of the flexible interconnect circuit, respectively. The first set of protrusions may be positioned at a first distance from the second set of protrusions on the base. The first set of apertures may be positioned on the flexible interconnect circuit at a second distance, greater than the first distance, from the second set of apertures. The base causes the flexible interconnect circuit into an arched configuration when the apertures are secured to the respective protrusions. The connector further includes a cover piece configured to secure the flexible interconnect circuit in the arched configuration.

First claim

What is claimed is:

1. An assembly comprising:
a flexible interconnect circuit; and
a connector connected to the flexible interconnect circuit and comprising:
a base comprising:
a housing chamber defined by at least a bottom wall, and
an insertion cavity within the housing chamber and partially defined by an insertion ramp, wherein a first part of the flexible interconnect circuit comprising a front end protrudes into the insertion cavity; and

a terminal position assurance (TPA) device interfacing with the base, wherein:
the TPA device comprises a first set of pins and a second set of pins positioned on an interface surface of the TPA device,
the first set of pins has a smaller offset relative to the front end of the flexible interconnect circuit than the second set of pins,
the first set of pins pushes the first part of the flexible interconnect circuit against the insertion ramp and clamps the first part between the first set of pins and the insertion ramp, and
the second set of pins extends into the housing chamber pressing on a second part of the flexible interconnect circuit without protruding through the flexible interconnect circuit thereby urging a portion of the flexible interconnect circuit, extending between the first part and the second part into an arched configuration.

2. The assembly of claim 1 , further comprising a module-side connector comprising one or more blades, wherein:
the base further comprises one or more blade openings receiving the one or more blades of the module-side connector, and
the one or more blades of the module-side connector interface conductive portions of the flexible interconnect circuit.

3. The assembly of claim 2 , wherein the connector further comprises a contact surface having a surface geometry urging the one or more blades of the module-side connector against the flexible interconnect circuit.

4. The assembly of claim 2 , wherein the first set of pins and the second set of pins apply a force to the flexible interconnect circuit thereby increasing a height of the arched configuration.

5. The assembly of claim 2 , wherein the arched configuration provides contact between the one or more blades of the module-side connector and the conductive portions of the flexible interconnect circuit.

6. The assembly of claim 2 , wherein the one or more blade openings align with the conductive portions of the flexible interconnect circuit.

7. The assembly of claim 1 , wherein the connector further comprises a seal configured to secure the flexible interconnect circuit within the housing chamber.

8. The assembly of claim 7 , wherein the seal is operable as a gasket between the flexible interconnect circuit within the housing chamber.

9. The assembly of claim 7 , wherein the seal is configured to form a watertight seal between the flexible interconnect circuit within the housing chamber.

10. The assembly of claim 1 , wherein:
the insertion cavity of the base is at least partially defined by a contact surface and a bottom, and the contact surface surrounds the first set of pins and the second set of pins and faces the bottom such that the flexible interconnect circuit extends between the contact surface and the bottom.

11. The assembly of claim 10 , wherein the contact surface is convex or gradually angles downward toward the bottom.

12. The assembly of claim 1 , wherein:
the base further comprises an upper wall defining the housing chamber,
the upper wall comprises a plurality of pin openings,
the interface surface of the TPA device interfaces with an external surface of the upper wall, and
the first set of pins and the second set of pins pass through the plurality of pin openings in the upper wall.

13. The assembly of claim 1 , wherein the connector further comprises a hinge, pivotably coupling the TPA device and the base.

14. The assembly of claim 1 , wherein the TPA device is a separate component from the base.

15. The assembly of claim 1 , wherein each of the first set of pins and the second set of pins comprises multiple pins offset with each other in a direction parallel to the front end of the flexible interconnect circuit.

16. The assembly of claim 1 , wherein the insertion ramp has a geometric profile defining, at least in part, the arched configuration of the portion of the flexible interconnect circuit, extending between the first part and the second part.

17. The assembly of claim 1 , wherein each of the each of the first set of pins and the second set of pins apply forces on the flexible interconnect circuit defining a height of the arched configuration of the portion of the flexible interconnect circuit, extending between the first part and the second part.

18. The assembly of claim 1 , wherein each of the each of the first set of pins and the second set of pins is offset from conductive portions of the flexible interconnect circuit.

19. The assembly of claim 1 , wherein the second set of pins protrudes further away from the interface surface of the TPA device than the first set of pins.

20. The assembly of claim 1 , wherein the flexible interconnect circuit comprises conductive portions formed from aluminum.

Assignees

• Cellink Corp

Inventors

• Coakley Kevin Michael
• Hernandez Emily
• Terlaak Mark

Classifications

• H01R12/592

  connections to contact elements · CPC title

• H01R12/613 Primary

  by means of interconnecting elements · CPC title

• H01R12/777 Primary

  Coupling parts carrying pins, blades or analogous contacts (H01R12/78, H01R12/79 take precedence) · CPC title

• H05K1/118

  specially for flexible printed circuits, e.g. using folded portions · CPC title

• H01R12/772 Primary

  Strain relieving means · CPC title