EP 0081446 B1 19860611 - METHOD OF AND DEVICE FOR WINDING THE INDUCTIVE COILS EQUIPPING ELECTRICAL APPARATUSES SUCH AS TRANSFORMERS
Title (en)
METHOD OF AND DEVICE FOR WINDING THE INDUCTIVE COILS EQUIPPING ELECTRICAL APPARATUSES SUCH AS TRANSFORMERS
Publication
Application
Priority
FR 8122614 A 19811201
Abstract (en)
[origin: ES8308444A1] An insulated wire is wound into a cylindrical coil by being continuously introduced into an annular space between a cylindrical core and a cylindrical sleeve coaxially surrounding same above a supporting surface which is rotated about their axis at an angular velocity W, the wire being fed in at a linear speed V. A processor is programmed to vary the ratio V/W according to the relationship (V/W)i= pi [D+2d)(ai-1)] where D is the diameter of the core, d is the wire diameter and ai is an integer representing the order number of the ith turn of a spiral path, counted from the core surface, along which the wire is laid in a succession of flat layers piled one atop the other. Each layer consists of n contiguous turns following one another in a radially outward direction in odd-numbered layers and in a radially inward direction in even-numbered layers, with decrementation or incrementation of the ratio V/W at the end of each turn. The discharge end of a feed tube is raised above the supporting surface, upon the completion of each layer, by an incremental distance equal to the wire diameter d to accommodate the next layer.
IPC 1-7
IPC 8 full level
H01F 41/04 (2006.01); B65H 54/80 (2006.01); H01F 41/06 (2006.01)
CPC (source: EP KR US)
B65H 54/80 (2013.01 - EP KR US); H01F 41/06 (2013.01 - KR); H01F 41/096 (2016.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0081446 A1 19830615; EP 0081446 B1 19860611; AT E20331 T1 19860615; CA 1206733 A 19860702; DE 3271688 D1 19860717; DK 159223 B 19900917; DK 159223 C 19910225; DK 531382 A 19830602; ES 517797 A0 19830816; ES 8308444 A1 19830816; FR 2517462 A1 19830603; FR 2517462 B1 19861003; IE 53970 B1 19890426; IE 822844 L 19830601; JP H0430170 B2 19920521; JP S58161310 A 19830924; KR 840003133 A 19840813; KR 880001084 B1 19880622; PT 75919 A 19821201; PT 75919 B 19850125; SG 26289 G 19890922; US 4491284 A 19850101
DOCDB simple family (application)
EP 82440037 A 19821119; AT 82440037 T 19821119; CA 415916 A 19821118; DE 3271688 T 19821119; DK 531382 A 19821130; ES 517797 A 19821130; FR 8122614 A 19811201; IE 284482 A 19821130; JP 21117882 A 19821201; KR 820005388 A 19821201; PT 7591982 A 19821130; SG 26289 A 19890419; US 44603082 A 19821201