Multilayer plane winding coil designing method suitable for double column magnetic core structure

A planar winding and design method technology, which is applied in coil manufacturing, inductor/transformer/magnet manufacturing, electrical components, etc., can solve the problems of transformer leakage increase, manufacturing cost soaring, practical limitations, etc., to reduce the total thickness, The effect of reducing the total number of layers and reducing technical difficulty

Inactive Publication Date: 2016-11-02
浙江求缺科技有限公司
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Problems solved by technology

At the same time, the design of the winding and the wiring between the layers of the circuit board have formed technical difficulties and the manufacturing cost has soared; the winding that is too thick will cause a seri

Method used

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  • Multilayer plane winding coil designing method suitable for double column magnetic core structure
  • Multilayer plane winding coil designing method suitable for double column magnetic core structure
  • Multilayer plane winding coil designing method suitable for double column magnetic core structure

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Embodiment Construction

[0024] A method for designing a planar plate winding coil suitable for a double-column magnetic core structure, the method specifically includes the following steps:

[0025] Step 1: Open two parallel magnetic core post installation through holes on the PCB;

[0026] Step 2: A plurality of metallized hole pads are provided on the outer edge of the PCB board;

[0027] Step 3: The first and last ends of the series winding on the whole board are drawn from two of the metallized hole pads on the PCB;

[0028] Step 4: Use the double-sided copper-clad substrate to route wires and form four windings around the two stem holes; the edge of each stem hole passes through multiple copper-faced wiring via holes, so that the cladding around the same stem hole Copper traces form a "double-layer series winding" with the same winding direction; two "double-layer series windings" around different core columns are connected in series in the opposite direction to form a full-board winding with t...

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Abstract

The invention discloses a multilayer plane winding coil designing method suitable for double column magnetic core structure. The method comprises the following steps: installing through holes and a plurality of metalized hole welding plates on two parallel magnetic core columns of a PCB; drawing the head end and the tail end of windings in series connection on the whole board from two of the metalized hole welding plates of the PCB; using double-face copper-clad base materials for going wires and forming four windings around the two core column holes; obtaining a multilayer plane winding coil in such a manner that the edges of each core column hole are provided with going wires and through holes through multiple copper faces to make the copper clad going wires around the same core column form double layer series connection windings wrapped in the same direction; and lastly, providing an insulation layer between two adjacent PCBs; and providing insulation layers both at the top and the bottom of the multilayer plane winding coil of the double column magnetic core structure. In the invention, the technical limitation of the single-column winding of a planar transformer is changed, and under the same winding current-carrying density, winding coils are two times as many and winding inductance is four times as much as those of the single-layer board.

Description

technical field [0001] The invention relates to a design method of a planar winding coil, in particular to a design method of a multi-layer planar winding coil suitable for a double-column magnetic core structure. Background technique [0002] Transformers are critical components in powering electronics. Existing transformers are large in size, which cannot meet the requirements of small and thin products. Planar transformers, especially planar plate transformers, are transformers formed by laying copper foil and other conductive foils as windings on a multilayer printed circuit board (PCB), and stacking them. The windings of this planar structure can greatly reduce the transformer thickness. Planar transformers are widely used in communication, computer, industrial control, aerospace engineering, medical equipment and other products. However, due to the limitations of the printed circuit board processing technology and the thickness of the copper clad layer, the number o...

Claims

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Application Information

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IPC IPC(8): H01F41/04
CPCH01F41/041
Inventor 舒靖文宋衡王连根
Owner 浙江求缺科技有限公司
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