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Mobile phone back housing capable of realizing wireless charging and preparation method thereof

A wireless charging and mobile phone technology, applied in the structure of telephones, collectors, electric vehicles, etc., can solve the problems of increasing the thickness of mobile phones, slow wireless charging speed, and the charging efficiency cannot be significantly improved, so as to improve market competitiveness , increase efficiency, reduce the thickness of the effect

Inactive Publication Date: 2015-12-16
广东百工新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wireless charging speed of this method is relatively slow, and the time spent is about 3 to 4 times that of ordinary wired charging.
If the number of coils is increased by increasing the number of coil layers, the thickness of the mobile phone will be virtually increased, and the charging efficiency will not be significantly improved

Method used

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  • Mobile phone back housing capable of realizing wireless charging and preparation method thereof
  • Mobile phone back housing capable of realizing wireless charging and preparation method thereof
  • Mobile phone back housing capable of realizing wireless charging and preparation method thereof

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preparation example Construction

[0050] On the other hand, if Figure 4 As shown, the present invention also discloses a method for preparing a wireless charging mobile phone back shell, including:

[0051] S101, preparing a ceramic sheet with a single layer thickness of 20 μm-1000 μm;

[0052] Preferably, the thickness of the single-layer ceramic sheet is 50 μm-800 μm. Specifically, the thickness of the single-layer ceramic sheet is 100 μm, 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, and is not limited thereto.

[0053] The ceramic sheets are preferably zirconia ceramic sheets or alumina ceramic sheets, but are not limited thereto. More preferably, the ceramic sheet is a zirconia ceramic sheet, the Mohs hardness is close to 9.0, which is much higher than the hardness of ordinary metals, even the latest Corning Gorilla Glass IV, its Mohs hardness is only between 7.0 and 7.5 Between, far lower than the hardness of the mobile phone shell made of zirconia ceramics.

[0054] The mobile phone back ...

Embodiment 1

[0077] The back shell of the mobile phone is composed of two layers of zirconia ceramic sheets. Each layer of zirconia ceramic sheets is printed with a coil through the screen printing process. The zirconia ceramic sheets are electrically connected through tungsten paste holes. Each layer of zirconia ceramic sheets The thickness of the mobile phone is 100μm, and the total thickness of the back shell of the mobile phone is 0.2mm.

Embodiment 2

[0079] The back shell of the mobile phone is composed of 10 layers of zirconia ceramic sheets. Each layer of zirconia ceramic sheets is printed with a coil through the screen printing process. The zirconia ceramic sheets are electrically connected through tungsten paste holes. Each layer of zirconia ceramic sheets The thickness of the phone is 50μm, and the total thickness of the mobile phone back shell is 0.5mm.

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Abstract

The invention discloses a mobile phone back housing capable of realizing wireless charging. The mobile phone back housing is composed of at least two layers of ceramic sheets, a coil is printed on each layer of ceramic sheet, and electric connection between the ceramic sheets is realized through through holes. The thickness of each ceramic sheet is 20 [mu]m-1000 [mu]m, and the total thickness of the mobile phone back housing is 0.2 [mu]m-2 [mu]m. Correspondingly, the invention further provides a method for preparing the mobile phone back housing capable of realizing wireless charging. According to the invention, the wireless charging efficiency of a mobile phone is improved, the wireless charging speed is substantially increased to 2-3 times of the speed of common wireless charging, the thickness of the mobile phone is not increased but decreased, the lightening and thinning requirements of a user to the mobile phone are met, and the market competitiveness is improved.

Description

technical field [0001] The invention relates to the field of mobile phone back shells, in particular to a wireless charging mobile phone back shell and a preparation method thereof. Background technique [0002] Wireless charging technology, also known as non-contact inductive charging, uses near-field induction to transfer energy from power supply equipment to electrical devices, and the energy received by the electrical device supplies power to the battery. Since the energy is transmitted between the charger (power supply equipment) and the electric equipment in the form of inductive coupling, there is no need to use wires to connect the two, that is, neither the power supply equipment nor the electric equipment need to add conductive nodes. [0003] There are three basic principles of existing wireless charging technology: electromagnetic induction, nuclear magnetic resonance and radio wave. However, when three different principles are used for wireless charging, for som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02H02J17/00H02J7/00
CPCY02B40/00
Inventor 马文珍张乾方李毅张耀辉
Owner 广东百工新材料科技有限公司
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