Method for Introducing Volatile Liquids into the Housings of Electrical Components and for Closing the Housings
First Claim
1. A method for introducing volatile liquids into filling openings of housings of electrical components and for closing the housings, the method which comprises:
- a) conveying the components into an evacuatable chamber;
b) generating an inert-gas atmosphere having a first pressure in the chamber such that the first pressure is higher than a vapor pressure of the liquid and below atmospheric pressure, the first pressure being a variable parameter;
c) in a storage vessel, bringing the liquid to a second pressure that differs from the first pressure;
d) using at least one delivery device to introduce a quantity of the liquid, which is associated with a free volume of a housing and which is a variable parameter, through at least one of the filling openings of the housings;
e) increasing pressure in the chamber to a third pressure being higher than the first pressure, the third pressure being a variable parameter;
f) repeating steps d) and e) until a predetermined quantity of the liquid has been introduced into each one of the housings; and
g) closing the filling openings in the housings and sealing the filling openings in an inert-gas atmosphere having a fourth pressure.
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Abstract
The invention describes a method and a device for introducing volatile liquids into housings of electrical components, in particular of passive electrical components or of electrochemical cells, and for closing the housings. The method can be carried out using an evacuable chamber, a conveyor device for conveying the components, a gas pressure device for generating a gas pressure atmosphere in the chamber, a filling device for introducing a volatile liquid into a component, a closing device for closing the component, and using a programmable sequence control means, which controls the conveyor device, the gas pressure device, the filling device and/or the closing device in such a way that these devices interact in a predetermined manner.
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Citations
18 Claims
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1. A method for introducing volatile liquids into filling openings of housings of electrical components and for closing the housings, the method which comprises:
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a) conveying the components into an evacuatable chamber;
b) generating an inert-gas atmosphere having a first pressure in the chamber such that the first pressure is higher than a vapor pressure of the liquid and below atmospheric pressure, the first pressure being a variable parameter;
c) in a storage vessel, bringing the liquid to a second pressure that differs from the first pressure;
d) using at least one delivery device to introduce a quantity of the liquid, which is associated with a free volume of a housing and which is a variable parameter, through at least one of the filling openings of the housings;
e) increasing pressure in the chamber to a third pressure being higher than the first pressure, the third pressure being a variable parameter;
f) repeating steps d) and e) until a predetermined quantity of the liquid has been introduced into each one of the housings; and
g) closing the filling openings in the housings and sealing the filling openings in an inert-gas atmosphere having a fourth pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification