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

A technology of flat coils and inductors, applied in the field of inductors, can solve the problems of small magnetic core space, flat coil width cannot be made too wide, low DC resistance, high saturation current electrical characteristics, etc., to achieve convenient folding The effect of processing and overall smooth lines

Active Publication Date: 2016-11-30
DONGUAN PULSE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

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Embodiment Construction

[0045] Please refer to Figure 1 to Figure 5 As shown, it shows the specific structure of the first embodiment of the present invention. The flat coil inductor includes a magnetic core 10 , a magnetic cover 20 and a flat coil 30 .

[0046] Wherein, the magnetic core 10 is provided with a first groove 11 at the top, a second groove 12 at both sides, and a third groove 13 at the bottom. The magnetic cover 20 covers the top of the magnetic core 10 .

[0047] The flat coil 30 is made of pure copper material, which is wound on the magnetic core 10. The flat coil 30 includes a top base 31, two sides flattened parts 32 and a bottom bottom flattened part 33. The portion 33 is formed by turning and extending the lower edge of the flattened portion 32 on both sides inwardly or by flattening for a second time to become thinner. The base 31 is embedded in the first groove 11 between the magnetic core 10 and the magnetic cover 20, and the flattened parts 32 on both sides are embedded in ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28H01F27/30H01F41/04
Inventor 周水振陈淑辉吴兰香陈乾陆利兵李良如
Owner DONGUAN PULSE ELECTRONICS CO LTD
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