Ram air fan terminal stud

Patent metadata

Field	Value
Publication number	US-9809322-B2
Application number	US-201213349112-A
Country	US
Kind code	B2
Filing date	Jan 12, 2012
Priority date	Jan 12, 2012
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

An example terminal stud of a ram air fan connection assembly has a threaded portion extending from a head that is held within a slot of a base. The head has a sidewall that interfaces directly with the base. The sidewall has a length and a height. A ratio of the length to the height is from 2.18 to 2.35.

First claim

We claim:

1. A terminal stud of a ram air fan connection assembly, comprising:
a terminal stud having a threaded portion extending from a head that is held within a slot of a base, the head having a sidewall interfacing directly with a wall of the base, the sidewall having a length and a height, wherein a ratio of the length to the height is from 2.18 to 2.35; and
a second terminal stud that is received within the slot of the base.

2. The terminal stud of claim 1 , wherein the head is a hexahedronal.

3. The terminal stud of claim 1 , wherein the sidewall is configured to contact the wall when a threaded fastener is secured to the threaded portion.

4. The terminal stud of claim 1 , wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width, wherein a ratio of the length of the sidewall to the width of the endwall is from 1.67 to 1.80.

5. The terminal stud of claim 1 , wherein the wall provides a portion of the slot.

6. A ram air fan terminal block, comprising:
a housing;
a base having a plurality of slot walls that provide a slot; and
a plurality of terminal studs each having a threaded portion extending from a head, the head received within the slot and the threaded portion extending through an aperture in the base, wherein the head has a sidewall that interfaces directly with one of the plurality of slot walls, and a ratio of a length of the sidewall to a height of the sidewall is from 2.18 to 2.35, wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width that is less than the length of the sidewall.

7. The ram air fan terminal block assembly of claim 6 , wherein the head is a hexahedronal head.

8. The ram air fan terminal block assembly of claim 7 , wherein the slot receives the heads of two terminal studs.

9. The ram air fan terminal block assembly of claim 8 , wherein the two terminal studs electrically couple a ram air fan motor lead to a controller lead.

10. The ram air fan terminal block assembly of claim 6 , wherein the sidewall has an area that is from 2.18 to 2.35 square inches.

11. The ram air fan terminal block assembly of claim 6 , wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width, wherein a ratio of the length of the sidewall to the width of the endwall is from 1.67 to 1.80.

12. The ram air fan terminal block assembly of claim 6 , wherein the aperture is located in a floor of the slot.

13. A method of electrically coupling a ram air fan assembly motor to a controller, comprising:
(a) torquing a threaded fastener to a terminal stud to hold a lead of a ram air fan motor in an electrically coupled position with a lead of a controller; and
(b) contacting a sidewall of a head of the terminal stud to limit rotation of the terminal stud during the torquing, the sidewall having a length and a height, wherein a ratio of the length to the height is from 2.18 to 2.35,
wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width that is less than the length of the sidewall.

14. The method of claim 13 , including holding the lead of the ram air fan motor in an electrically coupled position with the lead of the controller using a second terminal stud.

15. The method of claim 14 , including contacting the sidewall of both terminal studs with a common wall of a base.

16. The method of claim 13 , wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width, wherein a ratio of the length of the sidewall to the width of the endwall is from 1.67 to 1.80.

17. The method of claim 13 , including contacting the sidewall with a slot wall.

18. The terminal stud of claim 1 , wherein the head has an endwall that is generally perpendicular to the sidewall, the endwall having a width that is less than the length of the sidewall.

Assignees

• Chrabascz Eric
• Beers Craig M
• Hamilton Sundstrand Corp

Inventors

• Chrabascz Eric
• Beers Craig M

Classifications

• B64D41/007 Primary

  Ram air turbines · CPC title

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title