IP Library Granted Patent US 8,437,469
Granted Patent B1
US 8,437,469 · App. 12/692,904 · Granted May 7, 2013

Electrical protection device configured to reduce crosstalk caused by fuses

Inventor: Kevin Earnst (Madison, AL)
Assignee: Adtran, Inc.
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Quick Facts
Patent No.
US 8,437,469
App. No.
12/692,904
Granted
May 7, 2013
Kind
B1
Abstract

In accordance with a non-limiting example, an electrical protection device includes a fuse housing and a plurality of fuses carried by the fuse housing and arranged in a plurality of Tip/Ring fuse pairs. The Tip/Ring fuse pairs are arranged in vertical and horizontal orientation of Tip/Ring fuse pairs and spaced to each other such that differential crosstalk among the Tip/Ring fuse pairs is cancelled.

Claims (31)

1. An electrical protection device, comprising:

a fuse housing; and

a plurality of fuses carried by the fuse housing and arranged in a plurality of Tip/Ring fuse pairs, wherein the Tip/Ring fuse pairs are arranged in vertical and horizontal orientation of Tip/Ring fuse pairs and spaced to each other such that differential crosstalk among the Tip/Ring fuse pairs is cancelled.

2. The electrical protection device according to claim 1 , wherein the Tip/Ring fuse pairs are positioned substantially linearly with each other within the fuse housing.

3. The electrical protection device according to claim 1 , wherein the Tip/Ring fuse pairs are arranged in alternating vertical and horizontal orientation.

4. The electrical protection device according to claim 3 , wherein the fuse housing supports at least three Tip/Ring fuse pairs within the fuse housing.

5. The electrical protection device according to claim 1 , and further comprising a communications connector connected to said fuse housing and including terminals connected to said fuses.

6. The electrical protection device according to claim 1 , wherein the fuse housing includes a rear face and each Tip/Ring fuse pair comprises a pair of wire conductors that extend through the rear face of the fuse housing and exit therefrom as connector pins for respective Tip/Ring terminal pairs.

7. The electrical protection device according to claim 6 , wherein each Tip/Ring fuse pair include a connector pin having a horizontal section and a riser section that extends downward from the horizontal section to engage a circuit board to which the fuse body is supported.

8. The electrical protection device according to claim 1 , and further comprising a plurality of fuse holders each carrying a respective fuse within the fuse housing.

9. The electrical protection device according to claim 8 , wherein each fuse holder carries a respective Tip/Ring fuse pair.

10. The electrical protection device according to claim 1 , wherein the fuse housing includes fuse holder sockets into which fuses are removably received to enhance fuse replacement within the housing when a fuse is to be replaced.

11. An electrical protection device, comprising:

a fuse housing; and

a plurality of fuses carried by the fuse housing and arranged in a plurality of Tip/Ring fuse pairs, wherein the Tip/Ring fuse pairs are positioned linearly with each other within the fuse housing and arranged in alternating vertical and horizontal orientation of Tip/Ring fuse pairs, wherein an adjacent two Tip/Ring fuse pairs that are adjacent are spaced such that the distance from a centerline of a vertically oriented Tip fuse on a first Tip/Ring fuse pair to a centerline of a horizontally oriented Tip fuse on a second adjacent Tip/Ring fuse pair and the distance between a centerline of the Ring fuse on the first Tip/Ring fuse pair and a centerline of the Tip fuse on the second Tip/Ring fuse pair are substantially the same distance d1 and the distance from a centerline of the vertically oriented Tip fuse on the first Tip/Ring fuse pair to a centerline of the horizontally oriented Ring fuse on the second Tip/Ring fuse pair and the distance between a centerline of the Ring fuse on the first Tip/Ring fuse pair and a centerline of the Ring fuse on the second Tip/Ring fuse pair are substantially the same distance d2 wherein the distances d1 and d2 are such that differential crosstalk among Tip/Ring fuse pairs is cancelled.

12. The electrical protection device according to claim 1 , wherein the fuse housing supports at least three Tip/Ring fuse pairs within the fuse housing.

13. The electrical protection device according to claim 11 , and further comprising a communications connector connected to said fuse housing and including terminals connected to said fuses.

14. The electrical protection device according to claim 11 , wherein the fuse housing includes a rear face and each Tip/Ring fuse pair comprises a pair of wire conductors that extend through the rear face of the fuse housing and exit therefrom as connector pins for respective Tip/Ring terminal pairs.

15. The electrical protection device according to claim 14 , wherein each Tip/Ring fuse pair include a connector pin having a horizontal section and a riser section that extends downward from the horizontal section to engage a circuit board to which the fuse body is supported.

16. The electrical protection device according to claim 11 , and further comprising a plurality of fuse holders each carrying a respective fuse within the fuse housing.

17. The electrical protection device according to claim 16 , wherein each fuse holder carries a respective Tip/Ring fuse pair.

18. The electrical protection device according to claim 11 , wherein the fuse housing includes fuse holder sockets into which fuses are removably received to enhance fuse replacement within the housing when a fuse is to be replaced.

19. An electrical protection system, comprising:

a plurality of fuse housing bodies positioned linearly and adjacent to each other; and

a pair of fuses positioned in each fuse housing body and arranged as a Tip/Ring fuse pair in one of a vertical or horizontal configuration, wherein each of the fuse housing bodies are arranged adjacent to each other such that the Tip/Ring fuse pairs are arranged in alternating vertical and horizontal orientation and spaced to each other a distance such that differential crosstalk among the Tip/Ring fuse pairs is cancelled.

20. The electrical system according to claim 19 , wherein an adjacent two fuse housing bodies are spaced such that the distance from a centerline of the vertically oriented Tip fuse in a first fuse housing body to a centerline of the horizontally oriented Tip fuse in a second adjacent fuse housing body and the distance between a centerline of the Ring fuse in the first fuse housing body and a centerline of the Tip fuse in the second fuse housing body are substantially the same distance.

21. The electrical protection system according to claim 20 , wherein an adjacent two fuse housing bodies are spaced such that the distance from a centerline of the vertically oriented Tip fuse in a first fuse housing body to a centerline of the horizontally oriented Ring fuse in a second adjacent fuse housing body and the distance between a centerline of the Ring fuse in the first fuse housing body and a centerline of the Ring fuse in the second fuse housing body are substantially the same distance.

22. The electrical protection system according to claim 19 , wherein at least three fuse housing bodies are positioned adjacent to each other to support at least three adjacent Tip/Ring fuse pairs.

23. The electrical protection device according to claim 19 , and further comprising a fuse holder that carries a respective fuse within the fuse housing body.

24. The electrical protection device according to claim 23 , wherein each fuse holder carries a respective Tip/Ring fuse pair.

25. The electrical protection device according to claim 24 , wherein each fuse housing body includes fuse holder sockets into which fuses are removably received.

Assignments (2)
SECURITY INTEREST Recorded Jul 18, 2022
From: ADTRAN, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 060692/0249 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2010
From: EARNST, KEVIN
To: ADTRAN, INC.
Reel/Frame 023910/0400 →