Snap in high power, high current connector with integrated EMI filtering

• US 20070052500A1
• Filed: 09/02/2005
• Published: 03/08/2007
• Est. Priority Date: 09/02/2005
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Inventors: Selogie, Mark, Stancu, Constantin, Korich, Mark
• Granted Patent: US 7,525,825 B2
• Time in Patent Office: Days
• US Class Current: 333/202
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H01R 4/30 utilising a screw or nut clamping member H01R4/50 takes precedence; utilising a clamping member acted on by screw or nut H01R4/38; for coaxial cables H01R9/0521

Abstract

A filter assembly is provided which includes a Faraday cage interface. Electrical noise is filtered by the Faraday cage interface. The Faraday cage interface is configured to prevent passage of electromagnetic waves.

Claims

1. A low noise inverter system, comprising:

a connector for coupling the bus bar to the inverter module, the connector comprising;

a filter assembly, configured to receive an input having a noise component, and to filter the noise component of the input to produce a filtered input;

a bus bar, coupled to the connector and configured to receive the filtered input; and

an inverter module coupled to the connector via the bus bar,

wherein the inverter module is configured to receive the filtered input signal from the bus bar and to generate an AC output signal.

2. The system of claim 1, wherein the filter assembly, comprises:

a connector pin, coupled to the bus bar, wherein the connector pin is configured to receive the input having the noise component; and

a Faraday cage interface disposed at least partially around the connector pin to reduce the noise component associated with the input.

3. The system of claim 2, wherein the Faraday cage interface disposed at least partially around the connector pin to reduce the noise component associated with the input.

4. The system of claim 3, wherein the inverter module comprises a chassis, and wherein the bus bar is coupled to the chassis via the filter assembly.

5. The system of claim 4, wherein the Faraday cage interface comprises:

a spring clip which at least partially surrounds at least a portion of the connector pin; and

a filter card secured between the chassis and the bus bar.

6. The system of claim 5, wherein the spring clip and the filter card are disposed between the bus bar and chassis, and wherein the bus bar is coupled to at least a portion of the chassis.

7. The system of claim 6, wherein the filter card comprises:

a circuit board having a plurality of capacitors mounted thereon, wherein the spring clip electrically couples the connector pin to the circuit board.

8. The system of claim 5, wherein the filter assembly, further comprises:

a bolt configured to couple the input to the connector pin and to secure the bus bar to at least a portion of the chassis.

9. The system of claim 8, wherein the spring clip and bolt secure the filter card to the chassis.

10. The system of claim 1, wherein the input is a DC input from a DC power source having an EMI noise component

11. The system of claim 1, wherein the connector further comprises:

an inductive core coupled to the inverter module via bus bar, wherein the inductive core is disposed around at least a portion of the bus bar, and wherein the inductive core is coupled to the filter assembly via the bus bar.

12. A filter assembly, comprising:

a connector pin configured to receive an input having a noise component; and

a Faraday cage interface disposed at least partially around the connector pin to reduce the noise component associated with the input and configured to generate a filtered input.

13. The filter assembly of claim 12, wherein the Faraday cage interface disposed at least partially around the connector pin to reduce the noise component associated with the input.

14. The filter assembly of claim 13, wherein the Faraday cage interface comprises:

a spring clip which at least partially surrounds at least a portion of the connector pin; and

a filter card.

15. The filter assembly of claim 14, wherein the filter card comprises:

a circuit board having a plurality of capacitors mounted thereon, wherein the spring clip electrically couples the connector pin to the circuit board.

16. The filter assembly of claim 14, further comprising:

a bolt configured to couple the input to the connector pin.

17. The filter assembly of claim 12, wherein the input is a DC input from a DC power source having an EMI noise component

18. The filter assembly of claim 16, wherein the filter assembly is adapted for coupling a bus bar to at least a portion of a chassis of an inverter module.

19. The filter assembly of claim 18, wherein the filter card is disposed between the chassis and the bus bar, and wherein the filter card is secured to the chassis by the spring clip and bolt.

20. The filter assembly of claim 19, wherein the bolt is configured to secure the bus bar to at least a portion of the chassis.