Isolating cover for transformer

Details Isolating cover for transformer Isolating cover for transformer

1999-05-07

2000-06-20

Donovan, Lincoln

Inductor devices

With outer casing or housing

336 65, 336 92, 336198, 336208, H01F 2702

Patent

active

060782404

ABSTRACT:
An isolating cover for mounting on a top of a bobbin of a small-scaled transformer to cover windings and pins provided on the bobbin and isolate them from a frame core of the transformer. The isolating cover is so designed that it has isolating walls to provide increased creepage distances between any two components on the transformer and therefore prevents a hipot from directly crossing from a high-tension end to a low-tension end on the transformer. The increased creepage distances at all areas of the bobbin enable upgraded quality and reliability of the transformer. The isolating cover can be easily mounted to the bobbin to replace conventional insulating tape for covering the top of the bobbin, and has dimensions that do not exceed an overall volume defined by the bobbin. The transformer with the isolating cover can therefore be manufactured with simplified procedures and at reduced cost.

REFERENCES:
patent: 5534839 (1996-07-01), Mackin et al.
patent: 5859577 (1999-01-01), Nihei et al.

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