Flat coil inductor, flat coil and manufacturing method of flat coil

Abstract

The invention discloses a flat coil inductor, a flat coil and a method for manufacturing a flat coil. The inductor includes a magnetic core, a magnetic cover covering the magnetic core, and a flat coil wound on the magnetic core. The core is at least provided with first and second grooves, and the flat coil at least includes a top base and two side flattened parts, the thickness of the base is greater than the thickness of the side flattened parts, and the width of the side flattened parts is greater than that of the base Width, the base is embedded in the first groove, and the flattened parts on both sides are embedded in the second groove. By partially flattening the flat coil of the inductor to form a side flattened part to obtain different thicknesses, the width of the side flattened part is larger than the width of the base part, and the thickness is smaller than the thickness of the base part, so that the flattened part surrounded by the flat coil The space for synthetically accommodating the magnetic core becomes larger, and it is assembled with the corresponding larger magnetic core, which makes the DC resistance of the inductor smaller and the saturation current larger within a limited size range, so that the inductor can obtain the best electrical performance. characteristic.

Description

technical field [0001] The invention relates to the technology in the field of inductors, in particular to a flat coil inductor, a flat coil and a method for manufacturing the flat coil. Background technique [0002] The current inductor generally includes a magnetic core and a coil. The coil is wound on the magnetic core. When the current flows, it will be filled with magnetic energy. When the current becomes small, the magnetic energy in the coil will generate a force to prevent the current from changing. It is used in a wide range of applications, including servers, workstations, power supplies, monitors, switches, motherboards, scanners, telephones, modems, and more. [0003] Now there are also manufacturers on the market who use flat coils to replace the original coils wound with wires. When producing flat coils, flat metal sheets with good electrical conductivity are selected and wound on the magnetic core. Due to the size limitation of the inductor, the width of the...

AI Technical Summary

Problems solved by technology

Due to the size limitation of the inductor, the width of the flat coil cannot be made too wide, so that the space for placing the magnetic core in the flat coil is small, and the electrical characteristics of low DC resistance and high saturation current cannot be achieved.

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