Grounded diode pack

Patent metadata

Field	Value
Publication number	US-9370083-B2
Application number	US-201414466652-A
Country	US
Kind code	B2
Filing date	Aug 22, 2014
Priority date	Aug 22, 2014
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

The present disclosure relates to generators and their components. Specifically, a grounded diode pack is disclosed herein. A design to accommodate non-damaging dissipation static charge build-up is disclosed. Non-damaging dissipation of accumulated charge involves the provision of a suitable electrical path that will allow charges to flow to ground.

First claim

What is claimed is:

1. A method of preventing damaging static discharge of a diode pack comprising:
coupling an electrically conductive oil transfer tube bushing of the diode pack to a grounding connection;
conveying an oil through the electrically conductive oil transfer tube; and
dissipating an electrical charge from the oil to the grounding connection via the electrically conductive oil transfer tube bushing.

2. The method according to claim 1 , wherein the electrically conductive oil transfer tube bushing is housed within the diode pack.

3. The method according to claim 1 , wherein the grounding connection is made via a positive DC rail of the diode pack.

4. The method according to claim 1 , further comprising electrically coupling the electrically conductive oil transfer tube bushing to a coupler in electrical connectivity with a positive DC rail of the diode pack.

5. The method according to claim 1 , further comprising electrically coupling the electrically conductive oil transfer tube bushing to an electrically conductive oil transfer tube.

6. The method according to claim 5 , further comprising electrically coupling the electrically conductive oil transfer tube to a metal housing.

7. The method according to claim 6 , further comprising electrically coupling the metal housing to a rotor shaft via a bearing.

8. The method according to claim 1 , wherein a rotor circuit associated with the grounding connection is prevented from reaching an electrical potential where an electrical arc will occur.

9. The method according to claim 1 , wherein the diode pack is configured for use with an integrated drive generator.

10. A diode pack comprising:
an electrically conductive oil transfer tube bushing electrically coupled to a DC rail.

11. The diode pack of claim 10 , wherein the electrically conductive oil transfer tube bushing comprises:
a main body comprising a cylindrical body comprising an oil transfer cavity whereby oil may enter the main body; and
a conductor plate disposed at one end of the main body and extending radially outward from the main body,
wherein the conductor plate is connected to a coupler in electrical communication with the DC rail comprising a positive DC rail, and
wherein the positive DC rail is configured to accommodate non-damaging dissipation of built-up static charge via the oil transfer tube bushing.

12. The diode pack of claim 11 , comprising an electrical path between the positive DC rail and a ground whereby the built-up static charge is conducted from the positive DC rail to the ground.

13. The diode pack of claim 10 , wherein the electrically conductive oil transfer tube bushing is coupled to an electrically conductive oil transfer tube.

14. The diode pack according to claim 13 , wherein the electrically conductive oil transfer tube is electrically coupled to a metal housing.

15. The diode pack according to claim 11 , wherein a rotor circuit associated with the diode pack is prevented from reaching an electrical potential where an electrical arc will occur.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Rittmeyer Gregory Alan
• Behling David S
• Welch Timothy R

Classifications

• H02K11/042 Primary

  Rectifiers associated with rotating parts, e.g. rotor cores or rotary shafts · CPC title

• H05F3/02 Primary

  by means of earthing connections · CPC title

• H02K11/26

  Devices for sensing voltage, or actuated thereby, e.g. overvoltage protection devices · CPC title

• H02K11/0052

  Electricity · mapped topic