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Wireless charging device and preparation method thereof based on mems micromachining planar coil

A planar coil and wireless charging technology, which is applied in the direction of circuit devices, battery circuit devices, transformers/inductor coils/windings/connections, etc., can solve the problems of non-universality, improve wireless transmission efficiency, and facilitate process parameters Control, good coupling effect

Active Publication Date: 2018-12-18
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this charging method is only for electronic wristbands and is not universal

Method used

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  • Wireless charging device and preparation method thereof based on mems micromachining planar coil
  • Wireless charging device and preparation method thereof based on mems micromachining planar coil
  • Wireless charging device and preparation method thereof based on mems micromachining planar coil

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that the wireless transmission efficiency is affected by many factors. As far as the coil part is concerned, the coil shape, material, number of turns, relative position, etc. seriously affect the transmission efficiency. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0043] Such as figure 1 , Figure 4 As shown, a wireless charging device based on MEMS micro-processing planar coils, including a transmitting module and a receiving module, the transmitting module and the receiving module are separated by an external package; wherein: ...

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Abstract

The invention provides an MEMS-micromachined planar coil-based wireless charging device and a preparation method thereof. The wireless charging device comprises a base bottom box, a base top box, a receiving coil and a transmitting coil, wherein the transmitting coil is arranged in the base bottom box and is connected with a rectifier circuit, a detection circuit, a control circuit and a drive circuit in the base bottom box; the receiving coil is arranged in the base top box and is connected with the rectifier circuit and a converter in the base top box; the receiving coil and the transmitting coil are hollow planar coils; the receiving coil is arranged in the transmitting coil; and the transmitting coil and the receiving coil are prepared by an MEMS micromachining technology. By an interpolation structure, accurate positioning can be achieved; the wireless charging efficiency is effectively improved; the loss is reduced; the radiating area is reduced; meanwhile, the wireless charging device can prevent water and withstand external mechanical collision; and charging is relatively safe and reliable.

Description

technical field [0001] The invention relates to a low-power wireless charging device based on MEMS micromachining technology, in particular to a fixed-position built-in wireless charging device and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, the rapid development of digital products has been promoted, and more and more electronic devices are developing towards miniaturization and portability, such as sports bracelets and electric toothbrushes. These products have a large number of built-in electronic systems and associated power supply devices. For portable products, despite the low-power design, the more complex the functions of the intelligent system, the greater the basic power consumption to maintain these functions; for wearable smart electronic products, due to their small size, the battery Generally, the power supply can only last for a few days or less, such as Apple Watch can last for 18 hours. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H01F38/14H01F27/28
CPCH01F27/2847H01F38/14H01F2038/143H02J7/025
Inventor 陈明明丁桂甫赵梦圆刘哲
Owner SHANGHAI JIAO TONG UNIV
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