Flexible planar coil and production method thereof

A flat coil, flexible technology, applied in the direction of coil, coil manufacturing, electrical components, etc., can solve the problems of complex production process, poor consistency of product characteristics, inconvenient use, etc., to achieve fast production speed, less manpower, and less damage. Effect

Inactive Publication Date: 2013-07-17
王习力
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The electromagnetic coils in the prior art are wound with insulated copper wires, the production process is complicated, the consistency of product characteristics is poor, the reject rate is high, and its volume is large and thick, easy to be damaged and cannot be bent, and it is inconvenient to use on mobile phones, MP3, Used in small electronic products such as MP4, Bluetooth, digital cameras, batteries, etc.

Method used

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  • Flexible planar coil and production method thereof
  • Flexible planar coil and production method thereof

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Embodiment Construction

[0026] Referring to the accompanying drawings, a flexible planar coil of the present invention is characterized in that there is a flexible insulating board base layer 1, and a spiral copper foil printed circuit coil 2A, 2B is respectively arranged on both sides of the flexible insulating board base layer 1, and the copper foil printed circuit coils 2A, 2B on both sides are arranged. The foil printed circuit coils 2A, 2B are connected by conductive vias 4 passing through the base layer 1 of the flexible insulating board. The outer surface of the copper foil printed circuit coils 2A, 2B has an immersion gold or nickel immersion protective layer 3A, 3B.

[0027] An embodiment of a production method of a flexible planar coil of the present invention comprises the following steps:

[0028] 1. Select polyimide or polyester film with a thickness of 18um as the base material, and process it into a shape and size suitable for the production equipment;

[0029] 2. Drilling required via...

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Abstract

The invention discloses a flexible planar coil and a production method thereof. The flexible planar coil comprises a flexible insulating plate substrate (1), wherein two helical copper foil printed circuit coils (2A and 2B) are respectively arranged on the two surfaces of the flexible insulating plate substrate (1), the helical copper foil printed circuit coils (2A and 2B) on the two surfaces of the flexible insulating plate substrate are connected through a conductive via hole (4) penetrating through the flexible insulating plate substrate (1), and two Au / Ni immersed protection layers (3A and 3B) are respectively arranged in the outer surfaces of the copper foil printed circuit coils (2A and 2B). The flexible planar coil is manufactured by the production methods including material selection, punching, copper plating, exposure etching, press-fit bonding, Au immersion, silk screening and pressing. The winding operation is not needed, the production process is simple, the consistency of product characteristics is good, the rejection rate is low, and the flexible planar coil is small and thin, uneasy to damage and is bendable.

Description

【Technical field】 [0001] The invention relates to a coil device, in particular to a flexible planar coil and a production method thereof. 【Background technique】 [0002] The electromagnetic coils in the prior art are wound with insulated copper wires, the production process is complicated, the consistency of product characteristics is poor, the reject rate is high, and its volume is large and thick, easy to be damaged and cannot be bent, and it is inconvenient to use on mobile phones, MP3, MP4, Bluetooth, digital cameras, batteries and other small electronic products used. 【Content of invention】 [0003] Aiming at the shortcomings of the prior art, the object of the present invention is to provide a flexible plane that does not need to be wound, has a simple production process, good consistency of product characteristics, low scrap rate, and is small, thin, unbreakable, and bendable. Coil and method for its production. [0004] The technical solution adopted by the prese...

Claims

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Application Information

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IPC IPC(8): H01F5/00H01F41/04
Inventor 王习力
Owner 王习力
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