CONDUCTOR FUSE

• US 20130313008A1
• Filed: 12/08/2011
• Published: 11/28/2013
• Est. Priority Date: 12/22/2010
• Status: Abandoned Application

• Current Assignee: Tridonic GmbH & Co. KG (Zumtobel Group AG)
• Original Assignee: Tridonic GmbH & Co. KG (Zumtobel Group AG)
• Inventors: Steiner, Sascha
• Application Number:
  US13/995,822
• Publication Number:
  US 20130313008A1
• Time in Patent Office: Days
• US Class Current: 174/260
• CPC Class Codes: H01H 2085/383 with insulating stationary parts
• CPC Class Codes: H01H 2085/388 using special materials
• CPC Class Codes: H01H 85/0039 Means for influencing the rupture process of the fusible element
• CPC Class Codes: H01H 85/02 Details
• CPC Class Codes: H01H 85/046 Fuses formed as printed circuits
• CPC Class Codes: H01H 85/08 characterised by the shape or form of the fusible member
• CPC Class Codes: H01H 85/38 Means for extinguishing or suppressing arc by powder filling H01H85/18; by mechanical tension applied to fusible member H01H85/36
• CPC Class Codes: H05K 1/16 incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Abstract

The invention relates to a conductor fuse (1) for an electrical or electronic device, comprising a first and a second connecting region (2a, 2b), a blow region (3), which is arranged between the first and second connecting regions (2a, 2b) and does not extend linearly, and a continuous cover region (4), which is arranged at least partly over the first and second connecting regions (2a, 2b) and the blow region (3), wherein the blow region (3) and the cover region (4) are arranged relative to each other such that at least one tripping region (3a) of the blow region (3) is not covered by the cover region (4), but delimited on both sides by the cover region.

Claims

1. Conductor fuse (1), for an electrical or electronic device, having a first and a second connecting region (2a, 2b), a linearly extending burn-through region (3) arranged between the first and the second connecting region, and a contiguous covering region (4) which is arranged at least partially over the first and the second connecting region (2a, 2b) and the burn-through region (3), wherein the burn-through region (3) and the covering region (4) are arranged mutually to each other in such a way that at least one trigger region (3a) of the burn-through region 3 is not covered by the covering region (4), but is instead limited by the covering region.

2. The conductor fuse according to claim 1, wherein the burn-through region (3) has a zigzag-shaped pathway in top plan view.

3. The conductor fuse according to claim 1, wherein the burn-through region (3) has at least a partially curved or angular course in top plan view.

4. The conductor fuse according to claim 1, wherein the contiguous covering region (4) is arranged parallel to a main direction extension of the burn-through region (3).

5. The conductor fuse according to claim 1, wherein the burn-through region (3) has a reduced cross-section (d′

) opposite the first and the second connecting region (2a, 2b).

6. The conductor fuse according to claim 1, wherein the covering region (4) is formed homogeneously and has a constant thickness (t).

7. The conductor fuse according to claim 1, wherein at least one trigger region (3a) of the burn-through region (3) is arranged laterally to the contiguous covering region (4) in top plan view.

8. The conductor fuse according to claim 1, wherein the covering region (4) has a constant width (B) in top plan view.

9. The conductor fuse according to claim 1, wherein the at least one trigger region (3a) has an insulation.

10. The conductor fuse according to claim 1, wherein the burn-through region (3) is a copper conductor which is not plated with tin.

11. The conductor fuse according to claim 1, wherein the covering region (4) is a bar or a strip made of nonconductive material, which is an SMD adhesive or solder resist.

12. The conductor fuse according to claim 1, wherein the covering region (4) can be applied by means of a template.

13. Conductor board equipped with a conductor fuse having a first and a second connecting region (2a, 2b), a linearly extending burn-through region (3) arranged between the first and the second connecting region, and a contiguous covering region (4) which is arranged at least partially over the first and the second connecting region (2a, 2b) and the burn-through region (3), wherein the burn-through region (3) and the covering region (4) are arranged mutually to each other in such a way that at least one trigger region (3a) of the burn-through region 3 is not covered by the covering region (4), but is instead limited by the covering region.

14. Operating circuit for a lighting device equipped with a conductor fuse having a first and a second connecting region (2a, 2b), a linearly extending burn-through region (3) arranged between the first and the second connecting region, and a contiguous covering region (4) which is arranged at least partially over the first and the second connecting region (2a, 2b) and the burn-through region (3), wherein the burn-through region (3) and the covering region (4) are arranged mutually to each other in such a way that at least one trigger region (3a) of the burn-through region 3 is not covered by the covering region (4), but is instead limited by the covering region.