摘要:
A method of insulating an electromagnetic coil and the resultant product thereof which involves wrapping first and second overlapping layers of fluorinated ethylene propylene (FEP) resin-coated polyimide tape around distal sections of the end turns of the coil, inserting conforming laminae of FEP resin-impregnated glass cloth between adjacent coil turns, wrapping at least two overlapping layers of FEP resin-coated polyimide tape around the entire coil, heating the coil to at least the resin melting point, applying pressure to compress the tape and laminae and to clamp together the respective turns of the coil. and finally cooling the coil under pressure to allow the resin to resolidify. The resulting product has a thin, uniform coating of impervious electrical insulation characterized by improved heat transfer capability and improved stability at high temperatures.
摘要:
A contactless charging coil unit includes a base member with an upper surface having a coil housing portion formed therein in a spiral shape in a direction from the central portion to the outer periphery side; a coil formed by winding a litz wire along the coil housing portion, the litz wire having been obtained by twisting together a plurality of round wires each having a circular cross-section and covered with an insulating film; a covering member adapted to cover an upper portion of the base member, the covering member having a lower surface with a projection corresponding to and fittable into the coil housing portion of the base member; and a sealing material for firmly fixing the coil between the base member and the covering member to form a watertight seal.
摘要:
A transformer (100) and a method of forming a transformer (100) are provided. The transformer is particularly a medium frequency transformer, MFT. The transformer (100) comprises a transformer core (110) having a first core leg (111) having a first longitudinal axis (11) and second core leg (112) having a second longitudinal axis (12); a first low voltage, LV, winding portion (121) arranged around the first core leg (111), and a second low voltage, LV, winding portion (122) arranged around the second core leg (112); a high voltage, HV, winding (131) having a first HV winding portion (231) arranged around the first LV winding portion (121), and having a second HV winding portion (232) arranged around the second LV winding portion (122), the HV winding (131) comprising a link (230) for electrically linking the first HV winding portion (231) with the second HV winding portion (232), and the HV winding (131) comprising a first HV connector (241) and a second HV connector (242) for connecting the HV winding (131) to the outside of the transformer (100); and a casting (300, 301) embedding at least the HV winding (131) and the link (230).
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung einer Spule, insbesondere für einen Stator einer dynamoelektrischen rotatorischen Maschine, wobei ein elektrisch leitfähiger Bereich mit einem ersten additiven Verfahren gebildet wird, wobei der elektrisch leitfähige Bereich in Windungen um eine Windungsachse ausgebildet wird, wobei ein isolierender Bereich zur Isolation zweier benachbarter Windungen gegeneinander mit einem zweiten additiven Verfahren ausgebildet wird sowie eine auf diese Weise hergestellte Spule.