Electrical connectors – Coupling part including flexing insulation – Having plural – laterally spaced – prongs or prong sockets
Patent
1985-12-31
1987-11-10
Weidenfeld, Gil
Electrical connectors
Coupling part including flexing insulation
Having plural, laterally spaced, prongs or prong sockets
439587, H01R 1100
Patent
active
047053364
DESCRIPTION:
BRIEF SUMMARY
The design and construction of microminiature electric connectors, i.e. connectors assuring the connection by plugs whose diameter is less than or equal to 0.3 mm, encounter many difficulties. As is known, an electric connection generally uses a metallic plug and socket. It is clear that, in order to reduce as far as possible the overall size, it is necessary to place on the socket, and not on the plug, the elastically deformable device which assures the required pressure of contact, so as to permit the use of plugs whose diameter is less than 0.3 mm. If the socket is cylindrical, it is impossible to effect correctly an electrolytic deposit protecting the interior of this socket, owing to the fact that the interior diameter of the latter is substantially equal to the diameter of the plug.
Further, there are normally employed electric contact devices utilizing elastic metallic materials which assure the required pressure of contact, but which are generally unsuitable in the case of the small dimensions contemplated in this type of connector, in particular owing to the fabrication of the components and the assembly by means of automatic machines. In order to avoid the drawbacks resulting from the use of these elastic metallic materials, the applicant has already proposed, in French Pat. No. 1 174,063, to use a planar plastics cushion, for example of synthetic rubber, carrying on one of its planar faces copper deposits which are applied, by a relative transverse displacement brought about by exterior mechanical means, on the planar face of a printed circuit board so as to assure a contact between the usual conductive tracks of this board and the copper deposits of the elastic cushion.
The invention has for its object to develop a process for fabricating a female electric connector element adapted to cooperate with plugs having a diameter preferably at the most equal to 0.3 mm, characterized in that it comprises mainly separately forming two supports of an insulating material of which at least one is of an elastic plastics material, by giving to these supports such transverse profiles that, when these supports will be subsequently assembled together with one interior face against the other interior face, they delimit therebetween a series of parallel cavities which open onto at least one of the transverse faces of the assembly of the two supports; thereafter coating the interior face of at least one of these supports with at least one metallized track at the place of each cavity; and finally assembling the two supports in the above-mentioned manner. Of course, this definition of the process does not exclude the use of more than two supports for constituting the same female connector element, provided that each cavity is delimited by two of such supports of which at least one is of elastic plastics material.
With this process, it is possible to form cavities whose diameter of the circle inscribed within their cross-section is very small, i.e. preferably at the most equal to 0.3 mm, and whose surface is at least partly metallized in a manner which is sure and easily controllable, bearing in mind that, in the course of fabrication, it is unnecessary to cause the metallization bath or jet to penetrate to the end of cavities having a closed contour, which would moreover be practically impossible, but that it is sufficient to suitably distribute it by means of usual techniques on the part of the interior face of the support or supports which corresponds to the future place of the cavities and which is then entirely accessible.
The invention also has for, its object a female electric connector element adapted to cooperate with plugs having a diameter preferably at the most equal to 0.3 mm, mainly characterized in that it is formed by two supports of insulating material, of which at least one is of elastic plastics material and which are assembed together with one interior face against the other interior face, the profiles of these two supports being such, as thus assembled, that they delimit therebetween a series of
REFERENCES:
patent: 4118092 (1978-10-01), Sado et al.
patent: 4217155 (1980-08-01), Fritz et al.
patent: 4416498 (1983-11-01), Sado et al.
patent: 4426775 (1984-01-01), Faust et al.
Austin Paula A.
Weidenfeld Gil
LandOfFree
Processes for fabricating female electric connector elements and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processes for fabricating female electric connector elements and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for fabricating female electric connector elements and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1063611