Single-phase shell-type energy saving transformer employing orthogonally laminated round cross-section core

Abstract

Iron and copper losses of a shell-type transformer are reduced by a plurality of novel structure technologies; a zero-clearance magnetic circuit is arranged to obtain the lowest iron loss; a round cross-section core is combined with a rectangular cross-section magnet yoke to obtain the simplest process; silicon steel sheets with different properties are adopted by the core and the magnet yoke to obtain the optimal matching property and economic index; orthogonal laminated sheets are adopted by the core and the magnet yoke to obtain the optimal magnetic flow distribution; and the lowest copper loss and copper material cost are obtained by a round cross-section winding. The energy consumption of the transformer is reduced; the single-phase shell-type energy saving transformer also has a novel structure of a self-sealing transformer, is suitable for the single-phase shell-type transformer with a power from watts to tens of millions of watts, and is a significant innovation in the transformer structure and the manufacturing technology.

Description

field of invention [0001] The invention belongs to the technical field of transformers in electricity, and relates to multiple improvements of the core structure and the winding structure of the transformer, as well as the simplification of the process, and specifically creates an energy-saving transformer with a new structure. Background technique [0002] The basic principle of a transformer is to change one AC voltage to another through electromagnetic induction. Its basic structure is the cross-linking of circuits (including windings and external circuits) and magnetic circuits to achieve mutual conversion of electrical energy and magnetic energy. In order to reduce the loss of magnetic energy, the iron core is usually made of thin silicon steel sheets. To put the winding into the magnetic circuit, the magnetic circuit must be made in sections to leave openings, then embedded in the winding, and then sealed. There are many seam gaps under it—called magnetic circuit gaps....

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Problems solved by technology

[0003] In short, the existing transformers have many structural defects that affect their efficiency, and various st

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