Nano-crystal magnetic core injection mold, injection molding equipment and nano-crystal magnetic core plastic coating method

By designing nanocrystalline magnetic core injection molds and injection molding equipment, the positioning structure is used to position and protect the nanocrystalline magnetic core, the direct injection molding of nanocrystalline magnetic core is achieved, solving the problems of easy damage and low positioning accuracy in the manufacturing process, and improving product quality and production efficiency.

CN120170984APending Publication Date: 2025-06-20QINGDAO SINENG POWER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510371573.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

Nano-crystalline magnetic cores are easily damaged during the manufacturing process and change in size, which affects product positioning accuracy. In addition, the existing potting process increases processes and increases costs, resulting in the problems of waste of materials and increase in size.

Method used

A nanocrystalline magnetic core injection mold is designed, including a mold body and multiple positioning structures. The nanocrystalline magnetic core is positioned and protected by positioning needles and elastic parts, and the plastic is filled into the cavity using injection molding equipment to wrap the nanocrystalline magnetic core.

Benefits of technology

The direct injection molding and packaging of nanocrystalline magnetic core is realized, which simplifies the manufacturing process, reduces manufacturing costs, improves the positioning accuracy and quality of the product, and avoids product size increase and material waste.

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Abstract

The invention relates to the technical field of molds, and provides a nanocrystalline magnetic core injection mold, injection molding equipment and a nanocrystalline magnetic core plastic coating method.The nanocrystalline magnetic core injection mold comprises a mold body and a plurality of positioning structures, a cavity is formed in the mold body, and a nanocrystalline magnetic core is placed in the cavity; each positioning structure is correspondingly arranged in one direction of the cavity and comprises a driving piece, a sliding block, a positioning needle and an elastic piece, the driving piece is arranged on the mold body, the sliding block is arranged at the output end of the driving piece and slides on the mold body, one end of the elastic piece is connected with the sliding block, the other end of the elastic piece is connected with one end of the positioning needle, and the driving piece drives the sliding block to slide; the end, away from the elastic piece, of the positioning pin is driven to stretch into or retreat from the cavity, and the positioning pin is used for abutting against the Mie-crystal magnetic core. Due to the design of the elastic piece, the positioning needle can adapt to the size change of the nanocrystalline magnetic core, so that the positioning problem of the nanocrystalline magnetic core in the plastic coating process is effectively solved, and the positioning precision and quality of a product are improved.
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