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Flat coil, fabrication method thereof and flat coil wireless charger

A flat coil and charger technology, applied in the direction of current collectors, transformer/inductor coils/windings/connections, circuits, etc., can solve the problem of limiting power output, affecting the development of wireless charging receivers, and the ease of single ultra-thin coil inductance and high current. Overheating and other problems, to achieve the effect of reducing bias current, low loss, and preventing normal operation

Inactive Publication Date: 2016-08-24
WUXI JINGLEI ELECTRONICS
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Problems solved by technology

Therefore, the production of coils is a key technology. Now, in order to facilitate portability, the wireless charging receiver is developing towards miniaturization, and the product is miniaturized. It is necessary to flatten the coil so that it can be integrated into the narrow space of the product. It is easy to overheat, which limits the power output and affects the development of wireless charging receivers

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  • Flat coil, fabrication method thereof and flat coil wireless charger
  • Flat coil, fabrication method thereof and flat coil wireless charger

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Embodiment Construction

[0018] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0019] like figure 1 As shown, in the flat coil of this embodiment, the flat coil is a single-layer coil 1 wound from the inside to the outside by a single self-adhesive enameled wire. The single-layer coil 1 leads to two terminals 2. The largest side of the single-layer coil 1 is in fixed contact On the ferrite magnetic shielding plate 3 , the self-adhesive enameled wire adopts a high-temperature-resistant self-adhesive enameled wire with a high-temperature resistance grade H or higher.

[0020] The manufacturing method of the flat coil of the present embodiment, its manufacturing steps comprise:

[0021] (1) A single self-adhesive enameled wire is wound into a single-layer coil 1 by an automatic winding machine, and the winding tool is heated by a hot air table at the same time, and the winding operation is performed at the same time, a...

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Abstract

The invention relates to a flat coil. The flat coil is a single-layer coil formed by winding a single self-adhered enameled wire form inside to outside, two wiring ends are led out of the single-layer coil, one side of the single-layer coil is in fixed contact with a magnetic shielding plate, the induction intensity of the flat coil is utilized to the greatest extent, the loss is relatively low, particularly, the flat coil is relatively high in environmental adaptability and stable is performance, and the normal operation of an electromagnetic interference device is prevented. The invention also provides a fabrication method of the flat coil and a flat coil wireless charger employing the flat coil.

Description

technical field [0001] The invention relates to a coil, in particular to a flat coil, a manufacturing method and a flat coil wireless charger. Background technique [0002] The wireless charging receiver is mainly composed of a coil, and the quality of the coil is directly related to the quality of the product. Therefore, the production of coils is a key technology. Now, in order to facilitate portability, the wireless charging receiver is developing towards miniaturization, and the product is miniaturized. It is necessary to flatten the coil so that it can be integrated into the narrow space of the product. It is easy to overheat, which limits the power output and affects the development of wireless charging receivers. Contents of the invention [0003] In view of the above shortcomings, the applicant has made researches and improvements to provide a flat coil with high magnetic induction intensity and stable performance, a manufacturing method and a wireless charger usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J50/10H01F27/28
CPCH02J7/025H01F27/2871H02J5/005
Inventor 王斌
Owner WUXI JINGLEI ELECTRONICS
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