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A cylindrical inductor and its manufacturing method

A production method and columnar technology, applied in the field of electricity, can solve the problems of narrow application range and inability to use, and achieve the effects of expanding the application range of inductors, reducing the amount of use, and small magnetic flux

Active Publication Date: 2021-07-20
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Both the magnetic core and the magnetic body are magnetic materials, which make it impossible to use the strong magnetic field or limit the use of non-magnetic materials, so the application range is narrow

Method used

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  • A cylindrical inductor and its manufacturing method

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Embodiment Construction

[0032] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] Embodiments of the present invention provide a cylindrical inductor and a manufacturing method thereof, which are at least used to solve the technical problem of the narrow application range of the inductor in the prior art.

[0034] Because the inductance of the prior art belongs to the magnetic wave inductor, and the magnetic core in the magnetic wave inductor uses a magnetic material, due to the high magnetic characteristics of the magnetic material, the loss of the inductance is large. In order to reduce the loss, it can only be used in occasions with small inductance values. The frequency band is also narrow. Therefore, the application range of the inductor is narrow.

[003...

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Abstract

The invention discloses a cylindrical inductor and a manufacturing method thereof. The cylindrical inductor includes: an enameled wire wound into a hollow cylindrical structure, and the enameled wire has two lead ends after winding; therefore, the cylindrical inductor can be independent of Because of the support of the magnetic core, the amount of magnetic material used can be reduced. In addition, the hollow cylindrical structure of the enameled wire is filled with special soft magnetic materials; the cured resin is arranged on the surface of the enameled wire and used to fix the enameled wire. Since the soft magnetic material filled inside the enameled wire has the characteristics of small magnetic flux and low loss, it can improve the inductance of the columnar inductance, and can be used in the bandwidth of 200KHz~40GHz to realize the application of uF class inductance and expand the application range of inductance. technical effect.

Description

technical field [0001] The present application relates to the field of electricity, in particular to a cylindrical inductor and a manufacturing method thereof. Background technique [0002] Broadband inductors can be used in radio frequency, microwave, and millimeter wave integrated circuits, optical and electrical communication circuits, broadband amplifiers, broadband bias-tees (biasers), and broadband filters. [0003] An inductor in the prior art generally includes two parts: a magnetic core and a winding wound on the magnetic core. [0004] The existing magnetic cores generally use magnetic materials, and then copper enameled wires are wound on the surface of the magnetic cores. Or directly put the conductor coil into the magnetic body. [0005] Both the magnetic core and the magnetic body belong to magnetic materials, which make it impossible to use occasions that cause a strong magnetic field or limit the use of non-magnetic materials, so the application range is na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F17/04H01F27/255H01F27/30H01F41/04H01F41/00
Inventor 李仲茂尹军舰郭瑞赵振亚邱昕慕福奇叶甜春
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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