一种可调式NR电感结构

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By designing an adjustable NR inductor structure in the magnetic glue inductor and using threaded connection and positioning mechanism to adjust the magnetic core insertion amount, the problem of fixed and unadjustable inductance value is solved, and flexible adjustment of inductance value is achieved.

CN224519619UActive Publication Date: 2026-07-17SHENZHEN RAISING ELECTRON

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SHENZHEN RAISING ELECTRON
Filing Date: 2025-10-15
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The inductance value of existing magnetic rubber inductors is fixed and cannot be adjusted according to circuit requirements.

Method used

By winding a coil on a frame and encapsulating it with a magnetic adhesive layer, a threaded hole is provided in the center of the frame, a telescopic magnetic core is installed by the thread, and the magnetic core is adjusted by a positioning mechanism. The threaded connection and positioning mechanism prevent the magnetic core from rotating, thus forming an adjustable NR inductor structure.

Benefits of technology

It enables flexible adjustment of the inductance value, avoiding changes in inductance value caused by the rotation of the magnetic core, and meets the needs of different circuits.

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Abstract

本实用新型属于磁胶电感技术领域，公开一种可调式NR电感结构，包括骨架，且所述骨架上缠绕有线圈，且所述骨架与线圈之间经磁性胶层进行封装，且所述骨架的中心处设有贯穿骨架设置的螺纹孔，所述螺纹孔内螺纹安装有沿螺纹孔进行伸缩的磁芯，所述骨架上设有用于对调节后的磁芯进行定位的定位机构；所述定位机构包括螺纹安装在磁芯上的螺纹块拧紧螺纹块使得螺纹块与骨架进行贴合进行定位；所述磁芯的端部设有与螺丝刀配合的刀槽。本实用新型骨架与线圈之间经磁性胶层进行封装，这样形成了磁胶电感主体，对磁芯插入到线圈内的插入量进行调节，从而实现对电感进行调节，来满足不同的使用需求。

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Claims

1. An adjustable NR inductive structure, characterized by: The frame includes a skeleton (1), and a coil (2) is wound on the skeleton (1). The skeleton (1) and the coil (2) are encapsulated by a magnetic adhesive layer (3). A threaded hole (4) is provided at the center of the skeleton (1) through the skeleton (1). A magnetic core (5) that extends and retracts along the threaded hole (4) is installed in the threaded hole (4). A positioning mechanism (6) is provided on the skeleton (1) for positioning the adjusted magnetic core (5). The positioning mechanism (6) includes a threaded block (7) threaded onto the magnetic core (5). Tightening the threaded block (7) causes the threaded block (7) to fit against the frame (1) for positioning. The end of the magnetic core (5) is provided with a slot (8) that cooperates with a screwdriver.

2. The tunable NR inductive structure of claim 1, wherein: The frame (1) is a plastic frame, and the end of the frame (1) is provided with a screw hole (9), in which a nylon bolt (10) for fixing the magnetic core (5) is installed.

3. The tunable NR inductive structure of claim 2, wherein: The skeleton (1) has outwardly extending connecting pipes (11) at both ends.

4. The tunable NR inductive structure of claim 1, wherein: The skeleton (1) has blocks (13) at both ends, and a winding and glue injection area (14) for the coil (2) to be wound is formed between the two blocks (13). The outer end of the block (13) is provided with a docking sealing area (15) for docking with the mold.

5. The tunable NR inductive structure of claim 3, wherein: The screw hole (9) is provided on the connecting pipe (11).

6. The tunable NR inductive structure of claim 4, wherein: The skeleton (1) has multiple protrusions (16) on the winding and glue injection area (14).