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Welding technology of electromagnetic wire of transformer

An electromagnetic wire and transformer technology, applied in the field of electromagnetic wire welding technology, can solve the problems of coil radial direction, axial out of tolerance, pollution and purification of workshop environment, reduction of wire breaking force, etc. The effect of high and low partial discharge

Active Publication Date: 2013-06-05
SHANDONG POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the welding between single wires uses a current riser and welding tongs, or lap welding, or oblique lap welding; gas welding is used between transposed wires and combined wires, and oxygen and acetylene are needed for gas welding. Push the bottle to the site and keep a certain distance. Before welding, you need to ignite the welding torch with an open flame, and treat the solder joints with an open flame. This has great potential safety hazards. In addition, a large amount of asbestos rope is required for welding. Welding in the purification workshop will cause A large amount of water vapor and other gases are produced, which is not good for the clean room with constant temperature and humidity
These welding methods more or less have the following problems: the radial and axial deviation of the coil is caused by the large solder joint, the tensile force of the wire is reduced due to the large heating area of ​​the solder joint position, and the pollution is caused by the heavy grinding workload after welding. Coils, polluting the environment of the purification workshop during welding, etc.

Method used

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  • Welding technology of electromagnetic wire of transformer
  • Welding technology of electromagnetic wire of transformer
  • Welding technology of electromagnetic wire of transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A transformer electromagnetic wire welding process, specifically welding between single wires, comprising the following steps:

[0021] (1) Pre-cleaning: peel off the insulation layer of the welding part of the wire 1;

[0022] (2) Trimming: Use hydraulic wire cutters to trim the two wires to be welded in a single line, trim the ends of the two wires and align their cross-sections;

[0023] (3) Positioning: Use the electromagnetic wire positioning tool to clamp two wires, connect the two wires to align the two sections, and adjust the tightness of the wire to the welding surface by adjusting the positioning tool;

[0024] (4) Welding: Put two pieces of silver-phosphorus welding piece 2 with the same shape as the cross-section of the wire between the two pairs of welding surfaces. The overall size of the welding piece 2 is 1-1.5mm larger than the section size. The hand-held induction coil of the machine is used for welding;

[0025] (5) Post-processing: slightly polish...

Embodiment 2

[0027] A transformer electromagnetic wire welding process, specifically the welding between combined wires and transposed wires, comprising the following steps:

[0028] (1) Pre-cleaning: peel off the insulation layer of the welding parts of the combined wire 3 and the transposed wire 4 respectively;

[0029] (2) Trimming: Use hydraulic wire cutters to trim the combination wire 3 and transposition wire 4, cut the ends of the combination wire 3 side by side, and trim the end of the transposition wire 4 into a U shape, and the U shape of the transposition wire is recessed The length of the part is consistent with the width of the end face of the combined wire, and the side wall 5 of the U-shaped structure of the transposed wire is 20mm long;

[0030] (3) Positioning: Use the electromagnetic wire positioning tool to clamp the two wires, insert the end of the combined wire 3 into the opening of the U-shaped end of the transposed wire, make the two sections match and align, and the...

Embodiment 3

[0034] A transformer electromagnetic wire welding process, specifically the welding between combined wires and transposed wires, comprising the following steps:

[0035] (1) Pre-cleaning: peel off the insulation layer of the welding parts of the combined wire 3 and the transposed wire 4 respectively;

[0036] (2), Trimming: Use hydraulic wire cutters to trim the combination wire 3 and transposition wire 4, cut the end of the combination wire 3 into a U shape, the side wall 6 of the U-shaped structure of the combination wire is 20 mm long, and cut the end of the transposition wire 4 Cut into an E shape, the side wall 7 of the E-shaped structure is 40mm long, and the middle part 8 of the E shape is 20mm long. The opening and side wall dimensions of the combined wire match the corresponding position of the transposed wire to ensure that the end of the combined wire can be inserted into the transposed wire end department;

[0037] (3) Positioning: use the electromagnetic wire pos...

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Abstract

The invention relates to the manufacture field of transformers, in particular to welding technology of an electromagnetic wire in a winding process of a transformer coil. An insulation layer at the welding position of the electromagnetic wire is peeled off first, terminals of the electromagnetic wire are trimmed into sections matching with each other through a hydraulic wire cutter, then the terminals of the electromagnetic wire are located and pressed tightly and welded through a middle frequency welder, and welding spots are polished after welding and wrapped up to be insulated. The weldingtechnology adopts the middle frequency welder to weld the electromagnetic wire, welding sections are trimmed according to an electromagnetic type before welding, welding quality is high, the welding spots are small, polishing and cleaning work load is small, pollution to purification workshops and coils is greatly reduced, partial discharge of products is lowered, quality of the transformer and working efficiency of operators are improved.

Description

technical field [0001] The invention relates to the field of transformer manufacturing, in particular to an electromagnetic wire welding process in the coil winding process of a power transformer. Background technique [0002] In the process of winding the transformer coil, wires need to be welded, and there are many problems in the current wire welding process. Under normal circumstances, the welding between single wires uses a current riser and welding tongs, or lap welding, or oblique lap welding; gas welding is used between transposed wires and combined wires, and oxygen and acetylene are needed for gas welding. Push the bottle to the site and keep a certain distance. Before welding, you need to ignite the welding torch with an open flame, and treat the solder joints with an open flame. This has great potential safety hazards. In addition, a large amount of asbestos rope is required for welding. Welding in the purification workshop will cause A large amount of water vap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/06H01R43/02
Inventor 仇辉刘克民谢辉严子红杨振元宋文信王献罗述江
Owner SHANDONG POWER EQUIP
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