Substrate inductive devices and methods

• US 8,591,262 B2
• Filed: 09/03/2010
• Issued: 11/26/2013
• Est. Priority Date: 09/03/2010
• Status: Active Grant

• Current Assignee: Pulse Electronics Incorporated (Yageo Corporation)
• Original Assignee: Pulse Electronics Incorporated (Yageo Corporation)
• Inventors: Schaffer, Christopher P., Gutierrez, Aurelio J.
• Primary Examiner(s): Enad, Elvin G
• Assistant Examiner(s): LIAN, MANG TIN BIK
• Application Number:
  US12/876,003
• Publication Number:
  US 20120058676A1
• Time in Patent Office: 1,180 Days
• Field of Search: 439/620.18, 439/620.2, 439/620.01, 439/620.21, 439/620.22, 336/200, 336/229, 336220-222, 336/170, 336/212, 336/147
• US Class Current: 439/620.18
• CPC Class Codes: H01F 17/0013 with stacked layers
• CPC Class Codes: H01F 2017/002 Details of via holes for interconnecting the layers
• CPC Class Codes: H01F 5/003 Printed circuit coils
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor

Abstract

Methods and apparatus for providing a low-cost and high-precision inductive device. In one embodiment, the inductive device comprises a substrate based inductive device which utilizes inserted conductive pins in combination with plated substrates which replace windings disposed around a magnetically permeable core. In some variations this is accomplished without a header disposed between adjacent substrates while alternative variations utilize a header. In another embodiment, the substrate inductive devices are incorporated into integrated connector modules. Methods of manufacturing and utilizing the aforementioned substrate based inductive devices and integrated connector modules are also disclosed.

Claims

1. A multi-port connector, comprising:

a housing comprising a plurality of plug-receiving ports, the plug-receiving ports being arranged in a row-and-column fashion; and

a substrate-based inductive device assembly, comprising;

an insert assembly comprised of an insulative header and a plurality of plug-interfacing conductors, at least a portion of the plug-interfacing conductors in electrical communication with at least one substrate inductive device;

a substrate inductive device comprised of a plurality of cores and a plurality of substrates, the substrates being arranged in a direction that is parallel to a plug insertion direction associated with the plug-receiving ports; and

a plurality of circuit board interface terminals, the circuit board interface terminals in electrical communication with the at least one substrate inductive device;

wherein at least two of the plurality of substrates are joined together via a plurality of conductive wires with a first portion of the conductive wires being disposed within an interior volume of a given core and a second portion of the conductive wires being disposed outside of an outer periphery of the given core;

an interface substrate, the interface substrate disposed electrically between the insert assembly and the substrate inductive device;

wherein the substrates include a first substrate comprised of a first plurality of apertures and a second substrate comprised of a second plurality of apertures, the conductive wires joining respective ones of the first apertures with the second apertures; and

wherein the cores are disposed between the first and second substrates.

2. The multi-port connector of claim 1, wherein the interface substrate is disposed orthogonally with respect to the first and second substrates and orthogonal to the plug insertion direction.

3. The multi-port connector of claim 2 further comprising a plurality of substrate interface terminals, the substrate interface terminals providing an electrical interface between the first substrate and the interface substrate.

4. The multi-port connector of claim 3, wherein at least one of the substrate interface terminals comprises a through hole termination at one end and a non-through hole termination at an opposing end.

5. The multi-port connector of claim 3, wherein at least one of the substrate interface terminals comprises a through hole termination at both ends of the at least one of the substrate interface terminals.

6. The multi-port connector of claim 1, wherein the substrate inductive device includes no header or spacer, other than the cores, between the first and second substrates.

7. The multi-port connector of claim 6, further comprising a parylene coating, the parylene coating providing improved electrical isolation for the substrate inductive device.

8. The multi-port connector of claim 7, further comprising a plurality of conductive traces disposed on the first and second substrates, the conductive traces being located on respective surfaces of the first and second substrates adjacent the one or more cores.

9. A multi-port connector, comprising:

a housing comprising a front face, said front face comprising a plurality of plug-receiving ports, the plug-receiving ports being arranged in a row-and-column fashion;

an insert assembly; and

a substrate-based inductive device assembly, comprising;

a plurality of vertically oriented substrates, said vertically oriented substrates being arranged orthogonal to said front face;

a plurality of ferromagnetic cores, said cores being disposed between adjacent ones of said vertically oriented substrates; and

a plurality of conductors that connect said adjacent ones of said vertically oriented substrates;

wherein portions of the conductors are disposed internal to an interior volume of individual ones of the ferromagnetic cores, the conductors in combination with the vertically oriented substrates and ferromagnetic cores forming the substrate-based inductive device assembly;

wherein the substrate-based inductive device assembly further comprises an interface substrate, the interface substrate disposed electrically between the insert assembly and the plurality of vertically oriented substrates.

10. The multi-port connector of claim 9, further comprising a plurality of substrate-based inductive device assemblies, with each of said substrate-based inductive device assemblies arranged so as to provide signal conditioning for adjacent pairs of plug-receiving ports.

11. The multi-port connector of claim 10, wherein the adjacent pairs of plug-receiving ports in each substrate-based inductive device assembly reside within the same column of said row-and-column arrangement of said multi-port connector.

12. The multi-port connector of claim 9, wherein the interface substrate is disposed vertically, yet orthogonal with respect to the vertically oriented substrates.

13. The multi-port connector of claim 9, further comprising a plurality of substrate interface terminals, the substrate interface terminals providing an electrical interface between individual ones of the vertically oriented substrates and the interface substrate.

14. The multi-port connector of claim 13, wherein at least one of the substrate interface terminals comprises a through hole termination at one end and a non-through hole termination at an opposing end.

15. The multi-port connector of claim 13, wherein at least one of the substrate interface terminals comprises a through hole termination at both ends of the at least one of the substrate interface terminals.

16. The multi-port connector of claim 13, wherein at least one of the substrate interface terminals comprises a non-through hole termination at both ends of the substrate interface terminal.

17. The multi-port connector of claim 9, further comprising a plurality of conductive traces disposed on the vertically oriented substrates, the conductive traces being located on respective surfaces of the vertically oriented substrates adjacent the plurality of ferromagnetic cores.

18. A multi-port connector, comprising:

a housing comprising a front face, said front face comprising a plurality of plug-receiving ports, the plug-receiving ports being arranged in a row-and-column fashion;

an insert assembly; and

a substrate-based inductive device assembly, comprising;

at least two substrates disposed substantially parallel one another;

at least one ferromagnetic core, said at least one core being disposed between adjacent ones of said at least two substrates;

a plurality of conductors that connect said adjacent ones of said substrates; and

a plurality of conductive traces disposed on said substrates, said conductive traces each connecting at least one of said plurality of conductors to at least one other of said plurality of conductors so as to form one or more conductive paths between said plurality of conductors around said at least one core;

wherein the at least two substrates include plurality of apertures, the conductors joining respective ones of the apertures; and

an interface substrate, the interface substrate disposed electrically between the insert assembly and at least one of the at least two substrates.

19. A multi-port connector, comprising:

a housing comprising a front face, said front face comprising a plurality of plug-receiving ports, the plug-receiving ports being arranged in a row-and-column fashion;

an insert assembly; and

a substrate-based inductive device assembly, comprising;

at least two substrates disposed substantially parallel one another;

at least one ferromagnetic core, said at least one core being disposed between adjacent ones of said at least two substrates;

a plurality of conductors that connect said adjacent ones of said substrates;

a plurality of conductive traces formed on said substrates, said conductive traces each connecting at least one of said plurality of conductors disposed outside an outer periphery of said at least one core to at least one other of said plurality of conductors disposed inside an inner periphery of said at least one core so as to form at least one substantially continuous winding around said at least one core; and

an interface substrate, the interface substrate disposed electrically between the insert assembly and at least one of the at least two substrates.