WO2020243927A1 - Procédé et appareil de charge sans fil et support d'informations - Google Patents

Procédé et appareil de charge sans fil et support d'informations Download PDF

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Publication number
WO2020243927A1
WO2020243927A1 PCT/CN2019/090172 CN2019090172W WO2020243927A1 WO 2020243927 A1 WO2020243927 A1 WO 2020243927A1 CN 2019090172 W CN2019090172 W CN 2019090172W WO 2020243927 A1 WO2020243927 A1 WO 2020243927A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
transmission power
transmission
receiving device
charging
Prior art date
Application number
PCT/CN2019/090172
Other languages
English (en)
Chinese (zh)
Inventor
刘洋
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201980001009.5A priority Critical patent/CN110392969B/zh
Priority to PCT/CN2019/090172 priority patent/WO2020243927A1/fr
Publication of WO2020243927A1 publication Critical patent/WO2020243927A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • H02J7/0077—
    • H02J7/025—

Definitions

  • the method further includes:
  • Fig. 8 is a block diagram showing a wireless charging device according to another exemplary embodiment
  • At least two power levels are preset, and each power level contains at least one candidate transmission power.
  • power level includes power level 1 and power level 2
  • power level 1 includes 3 candidate transmission powers, 5W, 10W, and 15W
  • power level 2 includes 2 candidate transmission powers. They are 20W and 30W respectively.
  • step 304 in the process of charging with the second transmission power, the second power loss is obtained.
  • the power transmission device continues to detect the power loss after it is adjusted from the first transmission power to the second transmission power. At this time, the power loss acquired by the power transmission device is recorded as the second power loss.
  • the method for the power transmission device to obtain the power loss has been introduced above, and will not be repeated here.
  • the power transmitting device sends a power recovery message to the power receiving device, and the power recovery message is used to trigger a notification that the first transmission power has been resumed for charging.
  • the power receiving device After receiving the power recovery message, the power receiving device sends a power recovery notification, and the power recovery notification is used to notify the user that the first transmission power has been resumed for charging.
  • the power receiving device may display the power recovery notification in graphic form on the display screen, or may play the power recovery notification in voice form through the speaker, which is not limited in the embodiment of the present disclosure.
  • step 308 if the third power loss is greater than the third threshold, the second transmission power is used to charge the power receiving device, and the first transmission power is no longer restored.
  • the transmitter/receiver 1002 is used to support communication between the power receiving device 1000 and other devices (such as a power transmitting device and/or other power receiving devices).

Abstract

La présente invention concerne un procédé et un appareil de charge sans fil et un support d'informations et appartient au domaine technique de la charge sans fil. Le procédé comprend les étapes suivantes : un dispositif d'envoi de puissance charge un dispositif de réception de puissance avec une première puissance d'envoi ; dans le processus de charge avec la première puissance d'envoi, l'obtention d'une première perte de puissance ; si la première perte de puissance est supérieure à un premier seuil, la charge du dispositif de réception de puissance avec une seconde puissance d'envoi qui est inférieure à la première puissance d'envoi. Dans des modes de réalisation de la présente invention, lorsque le dispositif d'envoi de puissance détecte que la perte de puissance est supérieure à un certain seuil, la puissance d'envoi est réduite ; d'une part, le risque potentiel de sécurité provoqué par une surchauffe de corps étrangers en un court laps de temps en raison d'une puissance d'envoi excessive peut être évité afin d'améliorer la sécurité et la fiabilité de la charge sans fil ; d'autre part, le dispositif de réception de puissance peut être chargé en continu et une interruption de charge est évitée, ce qui permet d'améliorer la continuité de la charge sans fil.
PCT/CN2019/090172 2019-06-05 2019-06-05 Procédé et appareil de charge sans fil et support d'informations WO2020243927A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980001009.5A CN110392969B (zh) 2019-06-05 2019-06-05 无线充电方法、装置及存储介质
PCT/CN2019/090172 WO2020243927A1 (fr) 2019-06-05 2019-06-05 Procédé et appareil de charge sans fil et support d'informations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/090172 WO2020243927A1 (fr) 2019-06-05 2019-06-05 Procédé et appareil de charge sans fil et support d'informations

Publications (1)

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WO2020243927A1 true WO2020243927A1 (fr) 2020-12-10

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PCT/CN2019/090172 WO2020243927A1 (fr) 2019-06-05 2019-06-05 Procédé et appareil de charge sans fil et support d'informations

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CN (1) CN110392969B (fr)
WO (1) WO2020243927A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220407357A1 (en) * 2019-11-07 2022-12-22 Beijing Xiaomi Mobile Software Co., Ltd. Charging power control method and apparatus, and readable storage medium

Citations (3)

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CN103852665A (zh) * 2014-01-10 2014-06-11 深圳市普林泰克科技有限公司 一种无线充电器金属异物直接检测算法
CN103852631A (zh) * 2014-01-11 2014-06-11 深圳市普林泰克科技有限公司 一种无线充电器金属异物间接检测算法
CN103901997A (zh) * 2012-12-27 2014-07-02 联想(北京)有限公司 一种控制工作状态的方法和装置

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US9450648B2 (en) * 2011-10-13 2016-09-20 Integrated Device Technology, Inc. Apparatus, system, and method for detecting a foreign object in an inductive wireless power transfer system
US9716388B2 (en) * 2012-10-16 2017-07-25 Koninklijke Philips N.V. Wireless inductive power transfer
US9391470B2 (en) * 2013-11-06 2016-07-12 Blackberry Limited Energy transfer optimization by detecting and mitigating magnetic saturation in wireless charging with foreign object detection
EP2876770B1 (fr) * 2013-11-22 2016-08-17 TOSHIBA Electronics Europe GmbH Procédé de transmission sans fil d'une puissance
KR102513790B1 (ko) * 2015-09-09 2023-03-27 삼성전자주식회사 무선 전력 전송 방법 및 장치
EP3503332A4 (fr) * 2016-08-29 2019-08-21 Huawei Technologies Co., Ltd. Procédé de protection pendant une recharge électrique, terminal et chargeur
EP3346581B1 (fr) * 2017-01-04 2023-06-14 LG Electronics Inc. Chargeur sans fil destiné à un terminal mobile dans un véhicule
KR101897646B1 (ko) * 2017-01-09 2018-09-12 엘지이노텍 주식회사 무선 충전 장치 및 그 방법
CN108802835B (zh) * 2018-03-13 2020-03-27 维沃移动通信有限公司 无线充电检测方法、装置及移动终端、无线充电系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103901997A (zh) * 2012-12-27 2014-07-02 联想(北京)有限公司 一种控制工作状态的方法和装置
CN103852665A (zh) * 2014-01-10 2014-06-11 深圳市普林泰克科技有限公司 一种无线充电器金属异物直接检测算法
CN103852631A (zh) * 2014-01-11 2014-06-11 深圳市普林泰克科技有限公司 一种无线充电器金属异物间接检测算法

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Publication number Publication date
CN110392969A (zh) 2019-10-29
CN110392969B (zh) 2023-09-12

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