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A fpc structure for reducing AC resistance

A technology of AC resistors and coils, applied in circuits, inductors, electrical components, etc., can solve the problems of large heat generation and low coil transmission efficiency, and achieve the goals of reducing current resistance, improving conversion efficiency and temperature rise data, and preventing short circuits Effect

Active Publication Date: 2022-04-19
ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide an FPC structure that reduces AC resistance, which solves the defects of the existing coil structure at the receiving end of wireless charging, low coil transmission efficiency, and large heat generation

Method used

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  • A fpc structure for reducing AC resistance
  • A fpc structure for reducing AC resistance
  • A fpc structure for reducing AC resistance

Examples

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Effect test

Embodiment 1

[0029] Such as figure 1 , figure 2 , image 3 As shown, a kind of reducing AC resistance FPC structure provided by the present invention includes: a coil 1 and an FPC fixed plate 2 with an n-turn coil layer 16, the coil is installed on the FPC fixed plate, and the fixed plate positioned at the outside of the coil is equipped with Protective film area 3. The n-turn coil and the protective film constitute the FPC coil 4 . A welding pad 5 is provided on the outer edge of the FPC fixing board, and the outgoing line end or incoming line end is connected to the welding pad through a foil wire. The FPC fixed board is provided with via holes 6, and each coil layer is sequentially connected in parallel through the via holes.

[0030] The coil has m slots 7 arranged in the radial direction of the coil to divide the coil into m routing areas 8, wherein the coil layer of the outer ring on one side of the slot is connected to the adjacent slot by a connecting piece. For the coil laye...

Embodiment 2

[0034] An FPC structure for reducing AC resistance provided by the present invention includes: a coil with n turns of coil layer, and the coil has m slots arranged radially along the coil to separate the coil into m+1 routing areas, wherein , the coil layer of the outer ring on one side of the slot is connected to the coil layer of the inner ring on the other side adjacent to the slot through a connecting piece, so that m and n are integers greater than 2.

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Abstract

A FPC structure for reducing AC resistance provided by the present invention includes: a coil with n turns of coil layer, and the coil has m slots arranged radially along the coil to separate the coil into m wiring areas, wherein The coil layer of the outer ring on one side of the slot is connected to the coil layer of the inner ring on the other side adjacent to the slot through a connecting piece, and m and n are integers greater than 2. The present invention achieves the purpose of equal lengths of coils with the same number of turns by slotting the copper foil and intersecting inner and outer wires, thereby obtaining better conversion efficiency and temperature rise data.

Description

technical field [0001] The invention relates to the field of pharmaceutical devices, in particular to an FPC structure for reducing AC resistance. Background technique [0002] At present, the main technical solutions of wireless charging technology include electromagnetic induction, magnetic resonance, radio wave and electric field coupling, among which electromagnetic induction and magnetic resonance are the current two mainstream technical routes. The principle of electromagnetic induction charging is similar to a transformer. The charging board and the receiving end each have a charging coil and a magnetic core. After the charging board and the receiving end are aligned, high-efficiency wireless charging can be realized; the principle of magnetic resonance is to use the charging board and the receiving end. At a consistent resonant frequency, energy transfer is achieved through resonance. [0003] The wireless charger adopts the principle of electromagnetic induction, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/28H01F38/14
CPCH01F27/28H01F27/2804H01F38/14
Inventor 黄晓锋王欣欣
Owner ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
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