Arrangement for insulating coil leads and spacing end turns in a dynamoelectric machine

• US 3,151,260 A
• Filed: 12/08/1959
• Issued: 09/29/1964
• Est. Priority Date: 12/08/1959
• Status: Expired due to Term

• Current Assignee: Charles J. Mellon, Douglas C. Maccracken Jr
• Original Assignee: Charles J. Mellon, Douglas C. Maccracken Jr
• Inventors: Maccracken, Douglas C. Jr., Mellon, Charles J.
• Application Number:
  US03/858,247
• Time in Patent Office: 1,757 Days
• US Class Current: 310/43
• CPC Class Codes: H02K 2203/09 Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02K 3/505 for large machine windings, e.g. bar windings H02K3/51 takes precedence

Claims

1. IN A MAGNETIC CORE FOR A DYNAMOELECTRIC MACHINE COMPRISING A PLURALITY OF LAMINATIONS HAVING COILS THEREIN INCLUDING COIL END TURNS AND LEADS EXTENDING AXIALLY OUTWARD FROM SAID CORE, MEANS CONNECTING CERTAIN OF SAID COIL LEADS IN SERIES TO FORM A PLURALITY OF GROUPS OF COILS WHICH WHEN ENERGIZED ESTABLISH MAGNETIC POLES IN SAID CORE, A FIRST MOULD DISPOSED ADJACENT SAID END TURNS AND OF A DEPTH SUFFICIENT TO CONTAIN SAID SERIES LEAD CONNECTIONS, A COMPOUND IN SAID MOULD COMPLETELY ENCOMPASSING AND INSULATING SAID LEADS AND CONNECTIONS, WHICH COMPOUND WHEN CURED PROVIDES INSULATION FOR THE UNINSULATED CONNECTIONS, A SECOND MOULD PLACED ADJACENT SAID FIRST MOULD, POLE LEADS IN SAID SECOND MOULD EXTENDING FROM SAID GROUPS OF COIL AND CABLE LEADS ADAPTED FOR CONNECTION TO A POWER SOURCE HAVING ONE END THEREOF TERMINATING IN SAID MOULD, BRAZED CONNECTIONS IN SAID SECOND MOULD BETWEEN SAID POLE LEADS AND CABLE LEADS, AND A COMPOUND SIMILAR TO THAT IN SAID FIRST MOULD COMPLETELY FILLING SAID SECOND MOULD WHICH UPON CURING PROVIDES INSULATION FOR THE BRAZED CONNECTIONS AND PREVENTS THEIR DISPLACEMENT WHEN THE CORE IS PLACED IN OPERATION.