| 摘要 |
<p>A capacitor having an overpressure-controlled explosion-preventing device, composed of a casing (1), in which a capacitive element (4) made of self-healing metallized plastic film is accommodated, the capacitive element having two opposite heads (6, 7) whereon two leads (8, 9) are welded, and of a cover (10) made of plastics that contains an explosion-preventing device and comprises a central body (14) movable outwards when overpressure occurs in the casing (1), at least one flexible spring-loaded contact (18, 19) of the "double quick coupling" type, made of conducting metal, being accommodated in the movable central body (14) and having a terminal that is adapted to hermetically receive a lead for connection to the power supply system inserted from the outside of the casing but not to allow its extraction, and a contact terminal (26, 20) towards the inside of the casing, which is adapted to receive a lead for connection to the capacitive element and to allow its extraction until electrical disconnection is achieved in case of overpressure. <IMAGE></p> |
