Transformer iron core, manufacturing method of transformer iron core, transformer and manufacturing method of transformer

Abstract

The invention is suitable for the field of a transformer and discloses a manufacturing method of a transformer iron core, a transformer iron core, a manufacturing method of a transformer and a transformer. The manufacturing method of the transformer iron core comprises the step of manufacturing of an E-shaped iron core split body, the step of manufacturing of an I-shaped iron core split body and the step of assembling of iron cores. The step of manufacturing of the E-shaped iron core split body comprises the following steps of firstly stamping to form a plurality of E-shaped stamped sheets by adopting a stamping process and then adhering and laminating the E-shaped stamped sheets through first adhering parts to form the E-shaped iron core split body; and / or the step of manufacturing of the I-shaped iron core split body comprises the steps of firstly stamping to form a plurality of I-shaped stamped sheets by adopting the stamping process and then adhering and laminating the I-shaped stamped sheets by second adhering parts to form the I-shaped iron core split body. According to the invention, at least one of the E-shaped iron core split body and the I-shaped iron core split body is formed by laminating the stamped sheets by an adhering process; the technical problems of high ferromagnetic loss, low utilization rate of a ferromagnetic material and high design cost of an existing transformer iron core are solved.

Description

technical field [0001] The invention belongs to the field of transformers, and in particular relates to a method for manufacturing a transformer core, a transformer core made by the method for manufacturing a transformer core, a method for manufacturing a transformer with the method for manufacturing a transformer core, and a method for manufacturing a transformer made by the method for manufacturing a transformer core. the transformer. Background technique [0002] Among the existing transformer iron cores, the E-type iron core splits are generally composed of E-type punched sheets through welding or riveting process, and the I-type iron core splits are generally made of I-type punched sheets. It is composed of welding process or buckle riveting process. Since both the welding process and the riveting process will cause damage to the punching sheet, the E-type iron core split and the I-type iron core split are formed by laminating the punching sheet with the welding proces...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a manufacturing method of a transformer iron core, a transformer iron core, a manufacturing method of a transformer and a transformer, which solves the problem that the existing transformer iron core adopts a welding process and a buckle riveting process for lamination punching. The technical problems of high ferromagnetic loss of transformer core, low utilization rate of ferromagnetic material and high design cost of transformer core

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