Method and device for filling volatile liquids into the housing of electric components and for sealing the housing

A method for introducing volatile liquids into housings of electrical components, in particular of passive electrical components or of electrochemical cells, and for closing the housings, comprising the following steps:

• a) the components (4) are conveyed into an evacuable chamber (1),
• b) an inert-gas atmosphere with a first pressure, which is higher than the vapor pressure of the liquid and below atmospheric pressure, is generated in the chamber,
• c) the liquid is brought to a second pressure, which differs from the first pressure, in a storage vessel (11),
• d) a quantity of liquid which is associated with the free volume of a housing is introduced through at least one filling opening (20) arranged in each housing by means of at least one delivery device (5),
• e) the pressure in the chamber is increased to a third pressure, which is higher than the first pressure,
• f) steps d) and e) are repeated until in each case a predetermined quantity of liquid has been introduced into the housings, the first and third pressures and the quantity of liquid associated with the free volume of the housing being variable parameters, and
• g) the filling openings in the housings are closed and sealed in an inert-gas atmosphere with a fourth pressure.