Базовая структура индуктора

1. Каркас Каркас обычно относится к кронштейну для намотки катушки. Некоторые более крупные фиксированные катушки индуктивности or adjustable катушки индуктивности (such as oscillating coils, choke coils, etc.), most of which are enameled wire (or yarn-covered wire) around the skeleton, and then the magnetic core or copper core, iron core, etc. Installed into the inner cavity of the skeleton to increase its inductance. The skeleton is usually made of plastic, bakelite, and ceramics, and can be made into different shapes according to actual needs. Small катушки индуктивности (such as color-coded катушки индуктивности) generally do not use a bobbin, but instead have the enameled wire wound directly around the core. Air-core катушки индуктивности (also known as unwrapped coils or air-core coils, mostly used in high-frequency circuits) do not use magnetic cores, skeletons and shields, etc., but are first wound on the mold and then take off the mold, and the coil is pulled between each coil. Drive a certain distance.

2. Winding Winding refers to a group of coils with specified functions, which is the basic component of катушки индуктивности. There are single-layer and multi-layer windings. There are two types of single-layer windings: dense winding (conductors are wound one turn after another) and intermediate winding (there is a certain distance between each turn of wires during winding); multi-layer windings have layered flat winding, random winding Winding, honeycomb winding, etc.
3. Магнитный сердечник и магнитный стержень Магнитный сердечник и магнитный стержень обычно изготавливаются из никель-цинкового феррита (серия NX) или марганцево-цинкового феррита (серия MX) и других материалов, которые имеют форму «I», форму столбца, форму шляпы. , форма «Е», может формировать и другие формы.

4. Железный сердечник Материал железного сердечника в основном состоит из листа кремнистой стали, пермаллоя и т. д., и его форма в основном относится к типу «E».

5. Shielding cover In order to prevent the magnetic field generated by some катушки индуктивности from affecting the normal operation of other circuits and components, a metal screen cover (such as the oscillation coil of a semiconductor radio, etc.) is added to it. The use of shielded катушки индуктивности will increase the loss of the coil and reduce the Q value.

6. Packaging materials After some катушки индуктивности (such as color code катушки индуктивности, color ring катушки индуктивности, etc.) are wound, the coils and magnetic cores are sealed with packaging materials. The encapsulation material is plastic or epoxy resin.