Winding for a transformer or a coil and method for winding
View Patent ↗A winding for a transformer or a coil having a ribbon electrical conductor and an insulating material layer composed of ribbon insulation material wound jointly to form turns around a winding core. The individual turns of the winding have a predetermined winding angle with respect to a winding axis of the winding core and are disposed such that they partially overlap one another. An insulating layer is inserted between two radially adjacent layers of the turns. Furthermore, a thickness of the insulating layer is locally matched to the voltage difference determined there. In addition, the thickness of the insulating layer is locally matched, the thickness being interchanged in sequence of the method A+B determined there, to the voltage difference between the two relevant radially adjacent layers at the relevant axial point.
1. A winding for at least one of a transformer and a coil, comprising:
a winding core having a winding axis;
a ribbon electrical conductor;
an insulating material layer of ribbon insulation material;
said ribbon electrical conductor and said insulating material layer being wound synchronously to form turns around said winding core, individual ones of said turns of said winding:
being disposed to partially overlap one another; and
having:
a predetermined winding angle with respect to said winding axis; and
at least one of a local voltage differences and a voltage difference profile between each respective one of two radially adjacent layers of said turns in a direction of said winding axis; and
insulating layers, at least one of said insulating layers disposed between each of two radially adjacent layers of said turns, each of said insulating layers having a thickness locally matched to respective one of said at least one local voltage differences and said voltage difference profile.
2. The winding according to claim 1 , wherein a calculated overall thickness of two radially adjacent ones of said insulating layers has approximately the same thickness at every axial point due to a configuration of said two radially adjacent ones of said insulating layers.
3. The winding according to claim 1 , wherein said insulating layers are disposed offset with respect to one another in a direction of said winding axis.
4. The winding according to claim 2 , wherein said insulating layers are disposed offset with respect to one another in a direction of said winding axis.
5. The winding according to claim 1 , wherein said thickness of each of said insulating layers changes stepwise in a direction of said winding axis.
6. The winding according to claim 1 , wherein a change in said thickness of each of said insulating layers is continuous in a direction of said winding axis.
7. The winding according to claim 1 , wherein, before said turns are wound, said electrical conductor is one of:
connected to said insulating material layer; and
coated with an insulating varnish.
8. The winding according to claim 1 , wherein said electrical conductor connected to said insulating material layer.
9. The winding according to claim 1 , wherein said electrical conductor is insulating varnish coated.
10. A method for producing a winding for at least one of a transformer and a coil, which comprises:
synchronously winding a ribbon electrical conductor and an insulating material layer of ribbon insulation material to form turns around a winding core having a winding axis, each of the individual turns of the winding having a predetermined winding angle with respect to the winding axis and being disposed to partially overlap one another;
inserting an insulating layer between each two radially adjacent layers of the turns;
determining at least one of local voltage differences and a voltage difference profile between two respective adjacent ones of the radially adjacent layers in a direction of the winding axis; and
locally matching a thickness of the insulating layer to a respective determined at least one of the local voltage differences and the voltage difference profile.