Miniature induction coil
Small hollow inductor as the name suggests is a small size coil, the size parameter is (mm) inner diameter 15x20; Outer diameter 18.5x24, height 3.1; Line diameter 0.2; Number of turns 101; Electrical sensation 350uh; Electrical resistance 4.4 ohms; The winding mode is counterclockwise. The reader coil belongs to an antenna, and the first function of the antenna is to radiate and receive electromagnetic waves.
The precision requirements of small induction coils are relatively high, which puts forward higher requirements for the winding method. The existing winding machine is mainly used in the winding of motor stator coil, electrical coil and transformer winding coil, and these devices can realize the winding, wiring, hanging and other actions. A small coil winding machine is designed. The hollow inductor has less area, good stability and easy adjustment during winding. Small induction coil is mainly used in Bluetooth headphones, mice, lamps, watches and other products.
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