A METHOD OF MAKING A ROTOR FOR A DYNAMO-ELECTRIC MACHINE

    公开(公告)号:DE3274780D1

    公开(公告)日:1987-01-29

    申请号:DE3274780

    申请日:1982-12-30

    Applicant: IBM

    Abstract: A method of making a rotor, for a dynamo-electric machine, which has a number of arcuately formed rectangular loop coils arranged edgewise in a cylindrical configuration, employs injection moulding. Moulding material is injected between adjacent coils and penetrates between and around them to form an encapsulating framework. Entry of moulding material into the central apertures of the coils is prevented by inserts. By directing the moulding material inwardly, and spacing the coils slightly from the mould core, encapsulant also penetrates behind the coil faces to form a thin skin. By use of a shutter member, which may be an integral end cap, coil terminations can be led out of the mould cavity through apertures in the shutter to protect them from damage during the moulding process.

    Improvements in or relating to printed circuit connectors

    公开(公告)号:GB1095208A

    公开(公告)日:1967-12-13

    申请号:GB2361666

    申请日:1966-05-26

    Applicant: IBM

    Abstract: 1,095,208. Soldering. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 26, 1966, No. 23616/66. Heading B3R. [Also in Division H2] In making soldered connections between printed circuitry on two adjacent panels, e.g. at a right-angle junction, an intermediate connector is located between the panels so that bridging conductors on its outer surface contact the respective printed conductor, and solder balls inserted in the contact areas are melted by heat supplied from an element or hot air stream through a bore in the connector. The connector may be of a ceramic material and of circular cylindrical form with encircling conducting bands, or alternatively of triangular cross-section with conductors on one or two faces. Alternatively, the connections are made by dip coating the connector and printed conductors with tin lead or similar solder.

Patent Agency Ranking