Interface conditioning insert wafer

• US 5,290,191 A
• Filed: 08/31/1992
• Issued: 03/01/1994
• Est. Priority Date: 04/29/1991
• Status: Expired due to Term

• Current Assignee: Northrop Grumman Systems Corporation (Northrop Grumman Corporation)
• Original Assignee: TRW Limited (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Miller, Paul J., Kiser, Willie C., Foreman, Kevin G., Lovett, Karin J.
• Primary Examiner(s): Bradley, Paula A.
• Application Number:
  US07/938,111
• Time in Patent Office: 547 Days
• Field of Search: 439/43-45, 439/49, 439/54, 439/65, 439/75, 439/95, 439/101, 439/225, 439/621, 439/890, 439/927
• US Class Current: 439/225
• CPC Class Codes: G06F 21/00 Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• CPC Class Codes: H01R 13/6397 with means for preventing unauthorised use
• CPC Class Codes: H01R 13/6616 with resistor
• CPC Class Codes: H01R 13/6625 with capacitive component
• CPC Class Codes: H01R 13/665 with built-in electronic circuit H01R13/70, H01R13/719 take precedence
• CPC Class Codes: H01R 13/6658 on printed circuit board H01R13/6666 - H01R13/6691 take precedence
• CPC Class Codes: H01R 13/6666 with built-in overvoltage protection
• CPC Class Codes: H01R 29/00 Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H01R 9/03 Connectors arranged to contact a plurality of the conductors of a multiconductor cable , e.g. tapping connections
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H05K 1/0231 Capacitors or dielectric substances
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 2201/10053 Switch
• CPC Class Codes: H05K 2201/10424 Frame holders
• CPC Class Codes: H05K 2201/10515 Stacked components
• CPC Class Codes: H05K 2201/1053 Mounted components directly electrically connected to each other, i.e. not via the PCB
• CPC Class Codes: Y10S 439/927 Conductive gasket

Abstract

A wafer-like insert has a plurality of holes therein which correspond to pins of an electrical connector. The wafer includes contacts for making electrical connection to the pins, connector shell or electrical components. In such manner, the wafer can be used for a wide variety of purposes such as conditioning signals carried by the pins and grounding selected pin(s) to each other and/or the connector shell. The wafer can be installed in any common electrical connector pair without prior modification or preparation of the connectors and without impairing the normal fit or function of the mated connector pair.

Claims

1. A device for use with a wide variety of unmodified off-the-shelf electrical connectors, said device being removably insertable within the confines of a shell of a male connector having a plurality of pins which mate with sockets in a female connector, said device comprising:

a wafer having upper and lower major surfaces, the wafer being sufficiently thin so as to fit between the male and female connectors while permitting mating engagement therebetween, with the perimeter of the wafer being substantially entirely located within the perimeter of the shells of the connectors;

said wafer having a series of holes therein aligned with the pins in the male connector, said wafer being insertable into the male connector so that the pins extend through the holes;

contact means for making electrical contact with at least one of the pins as they extend through the holes in the wafer;

electrically conductive means on at least one surface of the wafer for providing an electrical conductive path between the contact means and other pins or the periphery of the wafer, for providing an electrical connection between at least one of the pins of the male connector and other pins therein or the shell of the male connector; and

whereby the wafer is inserted into the shell of the male connector to provide conditioning of signals on the pins thereof when mated with the female receptacle.

2. The device of claim 1 wherein the wafer is selected from the group of dielectric substrates and semiconductor material.

3. The device of claim 1 which further comprises:

electrical component means affixed to the wafer and electrically connected to the contact means for performing a preselected function on the electrical signals carried by the male connector pins.

4. The device of claim 3 wherein the electrical component means is selected from the group of capacitors, diodes, shorting blocks, resistors, analog and digital components, integrated circuits, fuses, memory storage devices and combinations thereof.

5. The device of claim 3 wherein said electrical component is located in a recess in the wafer to minimize the thickness thereof.

6. The device of claim 5 wherein said recess is a pocket formed between the major surfaces of the wafer, and wherein the electrical component is located in the pocket substantially between the major surfaces of the wafer.

7. The device of claim 6 wherein said conductive means is an electrical conductor pattern on one surface of the wafer which extends into the pocket to form a ledge onto which the electrical component is supported and electrically connected thereto.

8. The device of claim 6 wherein a first electrically conductive pattern on one surface of the wafer extends from the contact means into a side wall portion of the pocket, and wherein a second electrically conductive pattern on an opposite surface of the wafer extends into an opposite side wall portion in the pocket, with the electrical component being connected to the first and second electrically conductive patterns.

9. The device of claim 3 wherein selected pins are connected by the electrically conductive means directly to the shell of the male connector to thereby ground them, while other pins are connected to the electrical component.

10. The device of claim 9 wherein other pins are electrically isolated from the conductive means on the wafer thereby preventing conditioning of signals thereon.

11. The device of claim 1 which further comprises:

an insulating layer on at least one surface of the wafer.

12. The device of claim 11 wherein the insulating layer extends around sidewalls of the holes through which at least some of the pins extend thereby isolating them from the electrical conductive means on the wafer.

13. A method of conditioning signals flowing between pins in a male connector that are mated with sockets in a female connector, said method comprising:

disconnecting the male connector from the female connector;

providing a wafer having a series of holes therein corresponding to the pins in the male connector;

inserting the wafer into the male connector so that the pins extend through the holes in the wafer;

using an electrically conductive pattern on the wafer to make electrical contact between at least one pin and a shell of the male connector or another pin of the male connector;

reconnecting the male and female connectors, with the wafer lying therebetween; and

conditioning electrical signals flowing through the pins as the male and female connectors are mated by using the electrically conductive pattern on the wafer or additional electrical components on the water.

14. The method of claim 13 wherein the electrical components are located between major surfaces of the wafer to thereby minimize its thickness.

15. A device for use with a wide variety of unmodified off-the-shelf electrical connectors, said device being removably insertable onto a male connector having a plurality of pins which mate with sockets in a female connector, said device comprising:

a wafer having upper and lower major surfaces with a pocket formed therebetween, the wafer being sufficiently thin so as to fit between the male and female connectors while permitting mating engagement therebetween;

said wafer having a series of holes therein aligned with the pins in the male connector, said wafer being insertable onto the male connector so that the pins extend through the holes;

contact means for making electrical contact with at least one of the pins as they extend through the holes in the wafer;

electrical component means substantially located in the pocket formed between the major surfaces of the wafer and electrically connected to the contact means for performing a preselected function on the electrical signals carried by the male connector pins;

an electrical conductor pattern on at least one surface of the wafer and extending into the pocket to form a ledge onto which the electrical component means is supported and electrically connected thereto for providing an electrical conductive path between the contact means and the other pins or the periphery of the wafer, for providing an electrical connection between at least one of the pins of the male connector and other pins therein; and

whereby the wafer is inserted onto the male connector to provide conditioning of signals on the pins thereof mated with the female receptacle.

16. The device of claim 15 wherein the perimeter of the wafer is substantially entirely located within the perimeter of a shell of the male connector.

17. The device of claim 15 wherein the electrical component means is selected from the group of capacitors, diodes, shorting blocks, resistors, analog and digital components, integrated circuits, fuses, memory storage devices and combinations thereof.

18. The device of claim 15 wherein the electrical component means is a capacitor chip which provides electromagnetic interference filtering for the signals on the pins.

19. A device for use with a wide variety of unmodified off-the-shelf electrical connectors, said device being removably insertable onto a male connector having a plurality of pins which mate with sockets in a female connector, said device comprising:

a wafer having upper and lower major surfaces with a pocket formed therebetween, the wafer being sufficiently thin so as to fit between the male and female connectors while permitting mating engagement therebetween;

said wafer having a series of holes therein aligned with the pins in the male connector, said wafer being insertable onto the male connector so that the pins extend through the holes;

contact means for making electrical contact with at least one of the pins as they extend through the holes in the wafer;

electrical component means substantially located in the pocket formed between the major surfaces of the wafer and electrically connected to the contact means for performing a preselected function on the electrical signals carried by the male connector pins;

a first electrically conductive pattern on one surface of the wafer extending from the contact means into a sidewall portion of the pocket and a second electrically conductive pattern on an opposite surface of the wafer extending into an opposite sidewall portion in the pocket, with the electrical component means being connected to the first and the second electrically conductive patterns, the first and the second electrically conductive patterns provide an electrical conductive path between the contact means and other pins or the periphery of the wafer or between at least one of the pins of the male connector and other pins therein;

whereby the wafer is inserted onto the male connector to provide conditioning of signals on the pins thereof when mated with the female receptacle.

20. The device of claim 19 wherein the perimeter of the wafer is substantially entirely located within the perimeter of a shell of the male connector.

21. The device of claim 19 wherein the electrical component means is selected from the group of capacitors, diodes, shorting blocks, resistors, analog and digital components, integrated circuits, fuses, memory storage devices and combinations thereof.

22. The device of claim 19 wherein the electrical component means is a capacitor chip which provides electromagnetic interference filtering for the signals on the pins.

23. A device for use with a wide variety of unmodified off-the-shelf electrical connectors, said device being removably insertable onto a male connector having a plurality of pins which mate with sockets in a female connector, said device comprising:

a wafer having upper and lower major surfaces, the wafer being made of a dielectric substrate that is sufficiently thin so as to fit between the male and female connectors while permitting mating engagement therebetween;

said wafer having a series of holes therein aligned with the pins in the male connector, said wafer being insertable to the male connectors so that the pins extend through the holes;

contact means for making electrical contact with at least one of the pins as they extend through the holes in the wafer;

electrically conductive means on at least one surface of the wafer for providing an electrical conductive path between the contact means and a shell of the male connector to thereby ground the pins, said electrical conductive means being formed from a metallic pattern having a plurality of ears extending from the periphery of the wafer for making connection to the shell;

an insulating layer on at least one surface of the wafer; and

whereby the wafer is inserted onto the male connector to provide a grounding plane for the pins thereof when mated with the female receptacle.

24. The device of claim 23 wherein the perimeter of the wafer is substantially entirely located within the perimeter of a shell of the male connector.

25. A device for use with a wide variety of electrical connectors, said device being removably insertable onto a male connector having a plurality of pins which mate with sockets in a female connector, said device comprising:

a wafer having upper and lower major surfaces, the wafer being sufficiently thin so as to fit between the male and female connectors while permitting mating engagement therebetween;

said wafer having a series of holes therein aligned with the pins in the male connector, said wafer being insertable onto the male connector so that the pins extend through the holes;

contact means for making electrical contact with at least one of the pins as they extend through the holes in the wafer;

electrically conductive means on at least one surface of the wafer for providing an electrical conductive path between the contact means and the other pins or the periphery of the water, for providing an electrical connection between at least one of the pins of the male connector and other pins therein; and

whereby the wafer is inserted onto the male connector to provide conditioning of signals on the pins thereof mated with the female receptacle.

26. The device of claim 25 which further comprises:

electrical component means affixed to the wafer and electrically connected to the contact means for performing a preselected function on the electrical signals carried by the male connector pins.