Micro-coil element, array type micro-coil element and device

Abstract

The invention relates to a micro-coil element, an array type micro-coil element and a device, the micro-coil element comprises at least one wiring layer, a plurality of micro-coil units are arranged on the wiring layer, and each micro-coil unit comprises a plurality of metal line segments which start from a starting point and surround the starting point to form a plurality of circles of continuouswiring. Two ends of each metal line segment are a first electrode end and a second electrode end; and an electrode layer is provided with a first electrode area and a second electrode area which arerespectively used for collecting the first electrode end and the second electrode end of each metal line segment in the plurality of metal line segments. According to the invention, the current density can be increased, and meanwhile, the overall resistance is reduced in a parallel connection manner, so that the micro-coil element can have a stronger magnetic field function when being small in size.

Description

technical field [0001] The invention relates to the technical field of electrical components, in particular to a microcoil component, an array microcoil component and a device. Background technique [0002] Common magnetic components that can form a magnetic field, such as magnets or coils formed by metal windings, have a certain volume and weight. If they are used in electronic devices, they will often make the electronic devices heavier, or require a certain capacity to install these magnetic components. setting space. [0003] If used in electronic devices that require miniaturization, such as earphones, hearing aids or small speakers, such magnetic components require special materials or designs to be installed in the device, or there is a need to form a specific magnetic field strength and related physical limitations that limit the miniaturization The effect of miniaturization, or under the demand of miniaturization, the volume and weight of magnetic components must b...

AI Technical Summary

Problems solved by technology

[0003] If used in electronic devices that require miniaturization, such as earphones, hearing aids or small speakers, such magnetic components require special materials or designs to be installed in the device, or there is a need to form a specific magnetic field strength and related physical limitations that limit the miniaturization The effect of miniaturization, or under the demand of miniaturization, the volume and weight of magnetic components must be deliberately reduced, which also reduces the effect of magnetic components

[0004] Although there are significant advances in the materials of magnetic components that can generate magnetic fields in the prior art, there are still physical limitations and high cost issues

Images