Transformer and its manufacturing method

Abstract

A transformer provided by the invention comprises a skeleton, a primary winding, a secondary winding and a magnetic core. Wherein the skeleton is integrally formed with the primary coil, the skeletoncomprises a bobbin, and first bosses and second bosses respectively arranged at both ends of the bobbin. The skeleton is provided with through holes penetrating the bobbin, the first boss and the second boss. The primary coil is a flat coil, and the primary coil is integrally embedded in the first boss. The secondary coil is wound around the bobbin and the pins of the secondary coil are arranged on the second boss. The magnetic core includes an insertion portion inserted into the through hole and an outer portion disposed on the outer side of the skeleton. The invention also provides a manufacturing method of a transformer, comprising the following steps: opening a mold, molding the transformer skeleton by injection molding through a mold, placing a primary coil into a mold while molding the skeleton, and integrally molding the primary coil and the skeleton; installing the secondary coil and wind the secondary coil onto the skeleton; installing the core and mounting the core to the skeleton.

Description

technical field [0001] The invention relates to a transformer, in particular to a transformer with a stable structure and sufficient isolation between a primary coil and a secondary coil, and a manufacturing method of the transformer. Background technique [0002] Usually, the primary coil winding part and the secondary coil winding part are respectively arranged on the skeleton of the transformer, and an isolation plate is arranged between the primary coil winding part and the secondary coil winding part, so that the primary coil is isolated from the secondary coil to meet the requirements of safety insulation. Require. In the production process of winding and installing the primary coil and secondary coil of this type of transformer, not only the process is cumbersome, but also requires a lot of labor costs, and sometimes the primary coil and the secondary coil are not installed properly due to process errors, and the primary coil and the secondary coil are not properly in...

AI Technical Summary

Problems solved by technology

In the production process of winding and installing the primary coil and secondary coil of this type of transformer, not only the process is cumbersome, but also requires a lot of labor costs, and sometimes the primary coil and the secondary coil are not installed properly due to process errors, and the primary coil and the secondary coil are not properly installed. The secondary coil is displaced, so that the isolation distance between the primary coil and the secondary coil cannot reach the safety requirements

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