Abstract: A winding method for a foil coil includes the following process steps of, step S1: fixing an iron core, and preparing a winding die; step S2: calculating a circumference of a foil needed by each layer of coil; step S3: making one size mark on the foil at every regular interval; step S4: arranging the foil on a winding device; step S5: fixing a start end of the coil, and arranging a reference point on a transformer; step S6: starting to wind the coil; step S7: checking whether the winding meets a preset standard requirement; and step S8: fixing a tail end of the coil.

Abstract: Disclosed is a winding method for a foil coil, including the following process steps of, step S1: fixing an iron core, and preparing a winding die; step S2: calculating a circumference of a foil needed by each layer of coil; step S3: making one size mark on the foil at every regular interval; step S4: arranging the foil on a winding device; step S5: fixing a start end of the coil, and arranging a reference point on a transformer; step S6: starting to wind the coil; step S7: checking whether the winding meets a preset standard requirement; and step S8: fixing a tail end of the coil.

Abstract: Disclosed is a coil winding structure of a wound iron core transformer applied to a wound iron core transformer. The coil winding structure of the wound iron core transformer includes: an iron core, and a coil. The iron core includes at least one core post; a winding die. The winding die is of a hollow structure, is sleeved around the core post, and includes an upper die, a middle die, and a lower die. One end of the middle die is connected with the upper die and the other end of the middle die is connected with the lower die. The upper die includes a first fixing member and a first rotating member, and the lower die includes a second fixing member and a second rotating member. The first fixing member is connected with the first rotating member, and the second fixing member is connected with the second rotating member. Both the first fixing member and the second fixing member are configured for sleeving the winding die around the core post.

Abstract: A casting dry-type transformer and a manufacturing method thereof are disclosed. The transformer includes a coil, an iron core, a clamp and a leading wire. The leading wire is led out from the coil, the coil is arranged on the iron core, the coil and the iron core are fixed together by the clamp at two sides, the coil is provided with a casting die, the casting die is provided with evenly distributed channels, a transformer body is placed into a casting tank to cast a transformer, and a casting material is easy to penetrate into the coil through a reserved channel.