Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation process of anti-DC transformer iron core

A preparation process and transformer technology, applied in the direction of inductance/transformer/magnet manufacturing, transformer/inductor magnetic core, inductor, etc., can solve the problems of unfavorable mass production, poor production technology, complicated process, etc. Effects of high-volume production, reduced skill requirements, and improved process steps

Inactive Publication Date: 2018-11-20
河南合瑞电气有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, cut the annular iron core into two semicircles, and polish the incision. If the angles of the four surfaces are not aligned with the center of the circle after the cut surface is polished, the air gap width cannot be guaranteed at all, and the product performance and pass rate will be out of the question. Not to mention mass production;
[0005] Second, during production, the two semicircles must be aligned while ensuring the air gap, and then bonded, followed by insulation treatment and winding. The production process is poor, the process is complicated, the workload is large, the production cost is high, and the production efficiency is high. Low, and the performance of the manufactured iron core cannot guarantee consistency, which is not conducive to mass production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] A preparation process of an anti-DC transformer iron core of the present invention comprises the following steps:

[0017] a Installation: Fix the ring iron core on the fixture of the electric spark cutting machine;

[0018] b Set the parameters of wire electric discharge cutting: current 1.5A-3A, cutting speed 1.0-1.5mm / min, electrode wire diameter Φ0.16mm, unilateral discharge gap 0.01mm; because the current has an impact on the processing speed, the current The larger the , the higher the processing speed and the rougher the processed surface. Therefore, in order to cut an air gap with a higher surface finish, the selected current should not be too high.

[0019] c cutting: start the electric spark cutting machine, make the cutting tool cut according to the straight line track passing through the center of the ring iron core, and cut out an air gap from the ring iron core;

[0020] d Install the insulating sheet: turn off the electric spark cutting machine, remove t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation process of an anti-DC transformer iron core. The preparation process comprises the following steps that a, mounting is conducted, specifically, the annular iron core is fixed to a clamp of an electric spark cutting machine; b, parameters of electric spark line cutting are set, specifically, the current is 1.5-3 A, the cutting speed is 1.0-1.5 mm / min, the diameter of an electrode wire is phi 0.16 mm, and the unilateral discharge gap is 0.01 mm; c, cutting is conducted, specifically, the electric spark cutting machine is started, thus a cutting tool conductscutting according to the linear trajectory passing through the circular center of the annular iron core, and an air gap is cut in the annular iron core; and d, an insulating sheet is mounted, specifically, the electric spark cutting machine is stopped, the annular iron core is removed from the clamp of the electric spark cutting machine, the insulating sheet with the required thickness is sandwiched in the machined air gap, and the size of the air gap is controlled. The preparation process is simple, the skill requirements for production workers are lowered, and the manufactured single-air-gap iron core has high consistency and is suitable for mass production.

Description

technical field [0001] The invention belongs to the technical field of current transformers, and relates to a preparation process of an anti-DC transformer iron core. Background technique [0002] The anti-DC transformer is a component that is used in conjunction with the watt-hour meter to measure electricity consumption through magnetic induction transmission. The anti-DC transformer is composed of iron core and winding. The general production process of the iron core in the anti-DC transformer is: use low-loss and high-permeability cold-rolled oriented high-quality silicon steel material to form a ring-shaped iron core, and then use wire cutting or grinding wheel Cut the annular iron core to make the iron core form two semicircles, and then glue the two semicircles together. The gap between the two semicircles is the air gap. This kind of iron core is called double air gap iron core. , by adjusting the size of the air gap, the performance index of the anti-DC transformer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01F27/24H01F27/32H01F38/30H01F41/02
CPCH01F41/0206H01F27/24H01F27/324H01F38/30H01F2038/305
Inventor 崔占辉
Owner 河南合瑞电气有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products