As the name suggests, a small hollow core inductor coil is a coil with a size parameter of (mm) inner diameter 15x20; Outer diameter 18.5x24, height 3.1; Wire diameter 0.2; Circle number 101; Inductance 350uh; Resistance 4.4 ohms; The winding method adopts counterclockwise winding. Product Introduction: The card reader coil belongs to a type of antenna, and the first function of the antenna is to radiate and receive electromagnetic waves.
The precision requirements for small induction coils are relatively high, which puts higher demands on the winding method. Existing winding machines are mainly used for winding motor stator coils, electrical coils, and transformer winding coils. These devices can achieve actions such as winding, arranging, and hanging wires. A small coil winding machine has been designed, which has a small footprint for hollow inductor coils, good stability during winding, and easy adjustment. Small induction coils are mainly used in products such as Bluetooth earphones, mice, lighting fixtures, watches, etc.
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