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Wireless charging receiving module, wireless charging system and terminal

A technology of wireless charging and receiving coils, which is applied to battery circuit devices, current collectors, electric vehicles, etc., can solve problems such as inflexible operation of the charging process, affecting the effect of wireless charging, and limited charging positions, so as to improve the user experience and reduce the Restriction of positional relationship, effect of reducing heat generation

Pending Publication Date: 2020-08-04
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, based on the current charging scheme, if the centroids of the receiving coil and the transmitting coil are misaligned, even if they are staggered by a small distance, more efficiency will be lost, which will affect the effect of wireless charging. Align the centroids of the receiving coil and the transmitting coil, resulting in a severely limited charging position, and the charging process is not flexible to operate

Method used

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  • Wireless charging receiving module, wireless charging system and terminal
  • Wireless charging receiving module, wireless charging system and terminal
  • Wireless charging receiving module, wireless charging system and terminal

Examples

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Embodiment Construction

[0034] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0035] Embodiments of the present disclosure propose a wireless charging receiving module that can cooperate with a wireless charging transmitting module, wherein the wireless charging transmitting module can convert a DC signal into an AC signal through an inverter circuit , and then convert the AC signal into a magnetic field, the wireless charging receiving module couples the magnet...

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Abstract

The invention relates to a wireless charging receiving module, which comprises n receiving coils which are symmetrically distributed by taking at least one line as a symmetric axis, wherein the self-inductance coefficients of the receiving coils are the same. According to the embodiment of the invention, even if the wireless charging receiving module is not aligned with a wireless charging transmitting module, the coefficient of mutual inductance of the n receiving coils in the wireless charging receiving module and the transmitting coils in the wireless charging transmitting module is slightly changed, and the influence on the charging efficiency is reduced, so that the limitation on the position relationship between the wireless charging receiving module and the wireless charging transmitting module can be reduced to a certain extent in the wireless charging process, the wireless charging operation is more flexible, and the use experience of a user is favorably improved.

Description

technical field [0001] The present disclosure relates to the technical field of wireless charging, and in particular to a wireless charging receiving module, a wireless charging system and a terminal. Background technique [0002] The current wireless charging solutions are all implemented based on the Qi protocol, in which the transmitting coil as the transmitting end and the receiving coil as the receiving end are both single coils. When performing wireless charging, it is necessary to align the centroids of the transmitting coil and the receiving coil so that most of the magnetic field passing through the transmitting coil can also pass through the receiving coil, thereby ensuring higher efficiency. [0003] However, based on the current charging scheme, if the centroids of the receiving coil and the transmitting coil are misaligned, even if they are staggered by a small distance, more efficiency will be lost, which will affect the effect of wireless charging. Aligning t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02H02J50/12H02J50/40
CPCH02J50/12H02J50/40
Inventor 马强
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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