High-voltage transformer and a vehicle-lamp lighting-on device u

Details High-voltage transformer and a vehicle-lamp lighting-on device u High-voltage transformer and a vehicle-lamp lighting-on device u

1998-06-16

1999-09-28

Donovan, Lincoln

Inductor devices

With supporting and/or spacing means between coil and core

Preformed insulation between coil and core

336 96, 336 83, 336192, H01F 2730

Patent

active

059595213

ABSTRACT:
In a high-voltage transformer, an insulating ring is placed on and along the inner surface of the core housing, and gaps are formed between the tips of the flange-like plates of the coil bobbin and the inner side of the insulating ring. With such a construction, the gaps and the insulating ring are provided between the coil bobbin and the inner wall of the core housing, so that the flange-like plates of the coil bobbin do not come in contact with the inner surface of cylindrical wall of the core housing. Therefore, a surface distance of the coil bobbin ranges to a contact surface of the coil bobbin where it comes in contact with the front wall of the core housing. The surface distance is elongated. The voltage drop by the creepage discharge does no occur.

REFERENCES:
patent: 4725805 (1988-02-01), Takada
patent: 4769625 (1988-09-01), Meindl
patent: 5559486 (1996-09-01), Ikenoue et al.

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