Patent ID: 7974065

Claim:
An electric arc isolation structure for transformers, for isolating an electric arc produced in an arc discharge at a transformer, and the transformer including a primary side input electrode terminal and a secondary side high-voltage output terminal, characterized in that: the exterior of the transformer is covered by an insulating sheath, and the insulating sheath covers the secondary side high-voltage output terminal of the transformer; wherein the insulating sheath has a top, bottom, two sides and one end, with another end being open to receive the secondary side of the transformer and defines a covered space therein, and the covered space is greater than the external diameter of the secondary side high-voltage output terminal so that the sheath covers a top, bottom, two sides and an end of the secondary side of the transformer; wherein the sheath includes a portion between the secondary side high-voltage output terminal and a circuit board on which the transformer is mounted; further comprising a shock absorbent pad to absorb vibration of the transformer installed between the insulating sheath and the transformer.