Transformer bobbin for preventing excitation peak voltage...

Details Transformer bobbin for preventing excitation peak voltage... Transformer bobbin for preventing excitation peak voltage...

2007-06-26

2007-06-26

Mai, Anh (Department: 2832)

Inductor devices

With supporting and/or spacing means between coil and core

Preformed insulation between coil and core

C336S208000, C336S192000

Reexamination Certificate

active

11187329

ABSTRACT:
A transformer bobbin for preventing excitation peak voltage insulation damage that is applicable for application in cold cathode tube resonant inverters or backlight modules, wherein such transformers must frequently endure relatively high voltages, and, moreover, are light, slim and small. The present invention avoids the need to update existing iron cores and manufacturing process by using inclined wire storage grooves defined on top ends of partition walls, which provide for enameled wire to pass thereover, thereby increasing insulation effectiveness between layers of windings, and achieving objective of a transformer being able to endure a relatively high voltage.

REFERENCES:
patent: 4151500 (1979-04-01), Malerba et al.
patent: 4274136 (1981-06-01), Onodera et al.
patent: 4352079 (1982-09-01), Mueller et al.
patent: 5332989 (1994-07-01), Ching
patent: 7116201 (2006-10-01), Fushimi
patent: 2003/0094535 (2003-05-01), Schmidt

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