Inductor

Abstract

The invention belongs to the technical field of electronic devices, and particularly discloses an inductor which comprises a coil and a magnetic core, the coil comprises a bending part which is integrally punched and arranged in a flat polygon shape and welding feet extending out of the two ends of the bending part, the bending part is wrapped in the magnetic core, the two welding feet are exposed out of the side wall of the magnetic core after being bent, and a polygonal through hole is formed in the middle of the bending part in a penetrating mode. According to the inductor with the structural design, the effective sectional area of the coil can be increased through flat winding of the coil, then the limited space of the magnetic core is fully utilized, low inductance internal resistance under the same size is achieved, the performance of the inductor is effectively improved, and meanwhile the pressed inductor is stable and reliable in structure and not prone to cracking.

Description

Technical field [0001] The present invention relates to the field of electronic devices, and in particular, to a inductor. Background technique [0002] Inductance is one of the common components in the circuit, classify: single layer coil, multilayer coil, hive coil. With the efficiency of electronic products, the development of small-scale coil inductance is manufactured. The terminal made of round wire is used to make the miniaturized inductance: [0003] 1. In the press molding, the internal easily produces cracks, and the coil is easily deformed, and the product is reduced; [0004] 2, the outer electrode uses the process of welding electrode sheets, not easy to make miniaturized products, and the cost is higher; [0005] 3, using the end-faced lead-out of the polar line process, the leading polarity and the outer electrode contact area are small, resulting in high contact resistance, and the cost is also high to utilize the utilization space of the magnet. Inventive conten...

AI Technical Summary

Problems solved by technology

[0003] 1. When pressing and forming, cracks are easy to occur inside, and the coil is easy to deform, which reduces the product yield;

[0004] 2. The external electrode adopts the process of welding electrode sheets, which is not easy to produce miniaturized products, and the cost is high;

[0005] 3. Adopting the process of leading out the pole line from the end face, the contact area between the pole line drawn out and the external electrode is small, which leads to an increase in contact resistance, and its cost is also high, and the utilization space of the magnet is low

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