Method for processing transformer before tin soldering

Abstract

The invention discloses a method for processing a power transformer before tin soldering. The method comprises the following steps of: respectively winding three layers of insulated wires and enameled wires on a bobbin of a transformer insulating seat by using a winding machine; after the three layers of insulated wires are wound on the bobbin, directly winding a wire inlet end and a wire outlet end of each of the three layers of insulated wires on two pins in the transformer insulating seat; and removing outer insulating layers of the wire inlets end and the wire outlet ends of the three layers of insulated wires which are wound on the two pins by using a laser processing machine or other laser processing equipment in a laser processing mode, and then performing tin soldering operation. By directly winding the wire inlets end and the wire outlet ends of the three layers of insulated wires on the two pins after the three layers of insulated wires are wound on the bobbin, remaining wires are not required to be reserved, so that wire materials are relatively saved. Because the wires are not required to be manually wound on the two pins, labor time and labor power are relatively saved. By removing the outer insulating layers of the three layers of insulated wires in the laser processing mode, manual stripping is not required, accuracy is realized, the labor time and the labor power can be saved, and product yield is improved.

Description

technical field [0001] The invention relates to a transformer, in particular to a processing method before soldering of the transformer. Background technique [0002] The insulated wire wound on the bobbin of the power transformer is the two terminals (PIN) that are respectively wound around the incoming wire end and the outgoing wire end. If the outer insulation layer of the above-mentioned insulated wire wound around the two terminals is not peeled off and the soldering operation is directly performed, the defective product rate is very high. The main reason is that the soldering temperature must be adjusted very high, so that it is easy to damage the parts other than the terminal, such as the transformer insulation seat or its insulation winding shaft, which is often damaged due to its inability to withstand high temperature. Moreover, prolonged soldering time is also prone to slag and defective products (the outer layer of the insulated wire is plastic, and the plastic ...

AI Technical Summary

Problems solved by technology

[0009] 1. In process b, it is necessary to reserve a section of reserved length 71, 72 for the incoming and outgoing ends of the insulated wire 7, which is sufficient to be wound on the two terminals 91, 92 (see also figure 2 ), and then in the process c, the hand tool manually strips the outer insulation layer of the insulated wire 7 (refer to image 3 ), virtually wasted processing time and increased manpower and man-hours

[0010] 2. Manually winding the bare copper wire parts 711 and 721 of the insulated wire 7 that has been stripped of the outer insulation layer on the two terminals 91 and 92 in the process d also further increases the manpower and man-hours of processing, and the excess after winding The bare copper wire parts 711 and 721 need to be cut off manually, which not only further increases manpower and working hours, but also causes waste of wire materials

Images