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Coil module

A technology of coil components and modules, which is applied in the direction of transformers, electrical components, inductors, etc., can solve the problems of increasing costs, limiting the scope of application, and affecting the appearance of desktops, etc., and achieves the reduction of production costs, low precision requirements, and improved transmission efficiency. Effect

Pending Publication Date: 2019-04-16
SHENZHEN INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to improve the coupling coefficient, additional shielding tiles need to be added to the desktop, which not only limits the scope of application, increases the cost, but also affects the appearance of the desktop

Method used

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Embodiment Construction

[0027] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without departing from the principle of the present application, the features in different embodiments can be combined to obtain new implementations, or some features in certain embodiments can be replaced to obtain other preferred implementations.

[0028] Qi is the first standardization organization in the world to promote wireless charging technology - the "wireless charging" standard launched by the Wireless Power Consortium (hereinafter referred to as the "Alliance"), which has two characteristics of convenience and versatility. First of all, products of different brands can be charged with Qi wireless chargers as long as they have a Qi logo. Secondly, it overcomes the technical ...

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Abstract

The application belongs to the technical field of wireless charging, and particularly relates to a coil module. In order to improve the coupling coefficient, additional shielding magnetic stickers need to be added to the desktop, which not only limits the scope of application and increases the cost, but also affects the beauty of the desktop. The application provides a coil module which includes acoil component and a magnetic separation component, and the coil component is arranged on the magnetic separation component. The coil component includes a first coil layer and a second coil layer. The first coil layer and the second coil layer overlap each other, and the inner side of the first coil layer is connected with the inner side of the second coil layer. The thickness of the whole product can be reduced, and the transmission distance is farther. There is no need to add additional magnetic stickers to the desktop, the self-inductance is small, and the precision requirement for the resonant capacitance value is low. The production cost is reduced, and the transmission efficiency is improved.

Description

technical field [0001] The present application belongs to the technical field of wireless charging, and in particular relates to a coil module. Background technique [0002] The Qi standard is currently the most widely used wireless charging standard for mobile phones. The input voltage of a typical Qi standard transmitter enters the resonant circuit composed of the transmitting coil Lp and the resonant capacitor Cp after being inverted by the full bridge, and generates an alternating current with a frequency between 110 and 205 kHz on the transmitting coil. According to the principle of electromagnetic induction, an induced voltage will be generated on the secondary coil Ls, which will be converted into direct current after being rectified by the full bridge to charge the battery. [0003] In the Qi standard transmitter, the core component is the transmitter coil Lp, and its design has a major impact on factors such as system transmission distance, power, and efficiency. ...

Claims

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Application Information

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IPC IPC(8): H01F38/14H02J50/12H02J50/40H02J50/70
CPCH02J50/12H02J50/40H02J50/70H01F38/14
Inventor 王晓东陈宇龚世民
Owner SHENZHEN INST OF ADVANCED TECH