Method for manufacturing high-power annular inductor

A technology of toroidal inductors and manufacturing methods, which is applied in inductor/transformer/magnet manufacturing, coil manufacturing, inductors with magnetic cores, etc., can solve problems such as the size limitation of powder magnetic cores, and achieve improved equipment level, low cost, and reduced equipment. cost effect

Active Publication Date: 2013-02-13
NINGXIA YINLI ELECTRICAL CO LTD
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a manufacturing method for high-power toroidal inductors, which overcomes the size limitation of powder magnetic cores used in traditional toroidal inductances and the difficulty that large cross-section hard wires cannot be used to manufacture toroidal inductances in the direction of high power, and is suitable for modern power electronics. Inductance requirements

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for manufacturing high-power annular inductor
  • Method for manufacturing high-power annular inductor
  • Method for manufacturing high-power annular inductor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The implementation steps of the invention are divided into three parts: the preparation of the ring magnetic core, the preparation of the inductance coil and the assembly of finished products.

[0025] 1. Preparation of ring magnetic core: ① According to the required magnetic core diameter and magnetic flux leakage size required by the inductance, the magnetic core is decomposed into two halves from the diameter direction in the structural design stage, and decomposed into more than 3 semi-circular arc magnets along the circumferential direction. block (see figure 2 ).

[0026] The cross-section of the annular magnetic core is designed to be circular to facilitate demoulding during the pressing process. During the assembly process, the circular smooth structure greatly reduces the assembly difficulty and high assembly efficiency. The smooth circular cross-section can make the magnetic force line distribution of the magnetic core during work. Uniform, no magnetic di...

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
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for manufacturing a high-power annular inductor, comprising the following steps: manufacturing an annular magnetic core, manufacturing an inductance coil and assembling to obtain a finished product. The high-power annular inductor manufactured by adopting the method comprises the annular magnetic core and the inductance coil. The annular magnetic core comprises more than three semi-arc shaped magnetic blocks along the circumference, wherein each semi-arc shaped magnetic block is equally divided into upper and lower halves; the surface of each semi-arc shaped magnetic block is coated with an insulating layer with a thickness of 0.2-0.5mm; the joints of the combined upper and lower semi-arc shaped magnetic blocks are arrayed in a mutual staggered way; the inductance coil is a spiral ring coil winded from a hard wire; the spiral ring coil is combined together with the semi-arc shaped magnetic blocks; and the annular magnetic core is sleeved coaxially and impregnated and cured into the whole product. The method overcomes the problems that the powdery magnetic core of the traditional annular inductor is restricted in size and can not be made from the large-area hard wire, the annular inductor is enabled to develop towards high power, and the requirement on the inductance inductor in the modern power electronics field is met.

Description

technical field [0001] The invention relates to a ring inductor and its manufacturing method, in particular to a manufacturing method of a high-power ring inductor and a high-power inductor manufactured by the method, which is used to solve the problem that the high-power ring inductor cannot be manufactured with a large cross-section hard wire in the field of power electronics. Craft puzzles. Background technique [0002] In the traditional manufacturing field, the ring magnetic core used in the ring inductor is a whole seamless structure formed by one-time pressing of magnetic powder (see figure 1 ), due to the limitation of pressing and sintering process, the maximum diameter is usually only about 200mm. Although the magnetic flux leakage can be reduced to an ideal level, the applicable power is small, and the coil can only be manufactured with a small cross-section wire below Ф2mm. The inductance coil with a slightly larger power is manufactured with multiple strand...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/00H01F41/02H01F41/04H01F17/06H01F27/24
Inventor 焦海波宋登吉
Owner NINGXIA YINLI ELECTRICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap