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Wireless charging equipment and to-be-charged equipment

A wireless charging device and wireless charging technology, which can be applied to battery circuit devices, current collectors, electric vehicles, etc., and can solve problems such as inability to improve charging efficiency

Inactive Publication Date: 2021-06-29
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increasing requirements for wireless charging, the single-mode charging method is limited by the heating power and the bottleneck of the coil process, and it is impossible to further improve the charging efficiency.

Method used

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  • Wireless charging equipment and to-be-charged equipment
  • Wireless charging equipment and to-be-charged equipment
  • Wireless charging equipment and to-be-charged equipment

Examples

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Embodiment Construction

[0038] The technical solution in this application will be described below with reference to the accompanying drawings.

[0039] First, several terms involved in the embodiments of this application are introduced.

[0040] Wireless charging: refers to a way of charging using the principle of electromagnetic induction. The wireless charging system includes a transmitter and a receiver. The transmitter converts electrical energy into electromagnetic waves and transmits them in space. The receiver receives electromagnetic waves and converts the energy of electromagnetic waves into electrical energy, finally realizing wireless charging. Common wireless charging methods include electromagnetic induction, electromagnetic resonance, radio wave, electric field coupling, etc.

[0041]Qi standard: a wireless charging standard. The communication protocol of the Qi standard adopts frequency shift keying (frequency shift keying, FSK) and amplitude shift keying (amplitude shift keying, ASK)...

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Abstract

The invention provides wireless charging equipment and to-be-charged equipment, which can support two or more wireless charging technologies, thereby optimizing the circuit design and improving the power transmission efficiency. The to-be-charged equipment comprises a first receiving coil used for receiving an electromagnetic signal based on a first wireless charging technology and converting the electromagnetic signal into an alternating current signal; and a second receiving coil which is used for receiving the electromagnetic signal based on a second wireless charging technology and converting the electromagnetic signal into an alternating current signal. The ranges of resonant frequency points supported by the first wireless charging technology and the second wireless charging technology are different.

Description

technical field [0001] The present application relates to the charging field, in particular to a wireless charging device and a device to be charged. Background technique [0002] Wireless charging is an increasingly popular charging method in recent years, and can be widely used in terminal equipment, smartphones, tablet computers, wearable devices, vehicle equipment, electric vehicles and other fields. At present, the wireless charging scheme includes a variety of wireless charging standards or charging protocols, and is still under continuous development. For example, the current mainstream wireless charging standards include: Qi standard, alliance for wireless power (A4WP) standard, power matters alliance (PMA) standard, Wi-Po standard, invisible power field (invisible power field) , iNPOFi) etc. [0003] Because the charging principles of different wireless charging schemes are not the same, different wireless charging schemes are not compatible. For example, the Qi s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/10H02J50/12H02J50/20H02J50/70H02J7/02H02J7/04
CPCH02J50/10H02J50/12H02J50/20H02J50/70H02J7/02H02J7/04H01F38/14H02J50/402H02J50/80H01F27/366H01F27/2804H02J50/05
Inventor 周海滨何忠勇朱辰邱钰鹏
Owner HONOR DEVICE CO LTD