WO2022052755A1 - Procédé, appareil et dispositif de chauffage de batterie - Google Patents

Procédé, appareil et dispositif de chauffage de batterie Download PDF

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Publication number
WO2022052755A1
WO2022052755A1 PCT/CN2021/113054 CN2021113054W WO2022052755A1 WO 2022052755 A1 WO2022052755 A1 WO 2022052755A1 CN 2021113054 W CN2021113054 W CN 2021113054W WO 2022052755 A1 WO2022052755 A1 WO 2022052755A1
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WO
WIPO (PCT)
Prior art keywords
charging
frequency
electronic device
charging frequency
battery
Prior art date
Application number
PCT/CN2021/113054
Other languages
English (en)
Chinese (zh)
Inventor
陈博文
欧欣
马理猴
谢正生
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022052755A1 publication Critical patent/WO2022052755A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • 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
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of wireless charging, and in particular, to a battery heating method, device and device.
  • the controller of the electronic device can control to reduce the rotation speed of the fan or turn off the fan, so that the air volume generated by the fan is reduced. Small or no air volume is generated, so as to reduce the heat dissipation to the battery of the electronic device, so as to achieve the purpose of heating the electronic device.
  • the method further includes: receiving a second message sent by the electronic device, where the second message is used to indicate that the temperature of the electronic device is greater than a preset value; and performing a preset operation according to the second message to stop the The battery of the electronic device is heated; wherein, the preset operation includes one of the following: using the second charging frequency to charge the electronic device; or, reducing the transmission power of the charging device; or, stopping the charging of the electronic device.
  • the first preset value may be 10° C. for example.
  • acquiring the temperature of the electronic device includes: acquiring the power of the electronic device; if the power of the electronic device is lower than a second preset value, acquiring the temperature of the electronic device.
  • an embodiment of the present application provides a battery heating device, including: a processor and an interface circuit; the interface circuit is coupled to the processor; the processor is used for calling the code instructions stored in the memory to execute the The method of any one of the first to second aspects.
  • an embodiment of the present application provides a battery heating system, including the charging device as described in the third aspect and the electronic device as described in the fourth aspect.
  • the embodiments of the present application provide a computer program product including instructions, which, when run on a computer or a processor, enables the computer or processor to execute any one of the first to second aspects of the embodiments of the present application Provided battery heating method.
  • words such as “first” and “second” are used to distinguish the same or similar items with basically the same function and effect.
  • the first charging frequency and the second charging frequency are only used to distinguish different charging frequencies, and the sequence of the charging frequencies is not limited.
  • the words “first”, “second” and the like do not limit the quantity and execution order, and the words “first”, “second” and the like are not necessarily different.
  • the processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (DSP), baseband processor, display process unit (DPU), and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors. In some embodiments, the electronic device 101 may also include one or more processors 110 .
  • a memory may also be provided in the processor 110 for storing instructions and data.
  • the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby increasing the efficiency of the electronic device 101 system.
  • the wireless communication module 160 can provide applications on the electronic device 101 including wireless local area networks (WLAN), Bluetooth, global navigation satellite system (GNSS), frequency modulation (FM), NFC, Infrared technology (infrared, IR) and other wireless communication solutions.
  • the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 .
  • the wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .
  • the electronic device 101 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. Such as music playback, recording, etc.
  • the audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 .
  • Speaker 170A also referred to as "speaker" is used to convert audio electrical signals into sound signals.
  • the electronic device 101 may also calculate the touched position according to the detection signal of the pressure sensor 180A.
  • touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example, when a touch operation whose intensity is less than the first pressure threshold acts on the short message application icon, the instruction for viewing the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, the instruction to create a new short message is executed.
  • the battery of the electronic device when the working environment temperature is 0-10° C., the battery of the electronic device will limit the magnitude of the current due to the low temperature, resulting in slow charging.
  • the working environment temperature is -10 ⁇ 0 °C
  • the battery of electronic equipment will be interrupted due to low temperature. Therefore, in a possible implementation manner, the first preset value may be 10°C.
  • the electronic device sends received power to the charging device, where the received power is used to instruct the charging device to determine a power loss value corresponding to the charging device according to the transmit power and the received power. Since the power loss value corresponding to the charging device can be determined according to the transmitting power of the charging device and the receiving power of the electronic device, the third charging frequency can be adjusted in time according to the power loss value, so that the power loss corresponding to the adjusted third charging frequency The value is in the preset range, so as to avoid the power loss value exceeding the preset range, which will lead to inability to charge, damage the electronic equipment, and affect the user's use.
  • the center frequency also has a deviation, and the deviation is a second difference, wherein the second difference is greater than the first difference.
  • the coil resonance center frequency is 135kHz
  • the second charging frequency is 136kHz
  • the determined first charging frequency is 138kHz.
  • the first difference is 1kHz and the second difference is 3kHz, which means that the second difference is greater than The first difference condition.
  • the charging device determines the first charging frequency according to the first message, which may be, according to the first message, determining a charging frequency range corresponding to the charging device, and then determining the first charging frequency within the charging frequency range.
  • the adjusted third charging frequency can be determined is the first charging frequency.
  • the charging frequency will first deviate to 136 kHz, and the corresponding power loss value at 136 kHz will be calculated. If the power loss value is within the preset range, you can 136 kHz was determined as the first charging frequency. If the power loss value is not within the preset range, continue to adjust the charging frequency to 134kHz, calculate the power loss value corresponding to 134kHz, and repeat the above process until it is determined that the power loss value is within the preset range. charging frequency.
  • the second charging frequency when adjusting the second charging frequency, it may also be adjusted to the third charging frequency at one time. For example, if the second charging frequency is 135 kHz and the third charging frequency is 138 kHz, the charging frequency is directly biased to 138 kHz during the deviation process, and the third charging frequency is determined as the first charging frequency. Wherein, the above-mentioned third charging frequency may be predetermined according to experience.
  • the above-mentioned preset range can be set according to experience or actual situation, for example, it can be 5W-10W.
  • Step 404 The charging device adjusts the charging frequency used to charge the electronic device from the second charging frequency to the first charging frequency, so as to heat the battery of the electronic device.
  • the electronic device in order to monitor the temperature of the electronic device in time and avoid damage to the battery performance due to the high temperature of the battery after heating, during the process of heating the battery of the electronic device by the charging device in the above manner, the electronic device will Real-time or periodic own temperature. If the acquired temperature information is greater than the fourth preset value, the electronic device sends a second message to the charging device, and the charging device performs a preset operation according to the second message to stop heating the battery of the electronic device.
  • the preset operation may include any one of the following: using the second charging frequency to charge the electronic device, reducing the transmit power of the charging device, or stopping charging the electronic device.
  • the fourth preset value may be 20°C, because the ideal operating temperature range of the battery is 15°C to 40°C, at which the battery of the electronic device can work normally and this temperature will not cause external damage to the electronic device. hot.
  • the charging device will perform a preset operation to stop heating the battery of the electronic device, thereby preventing the battery temperature from being too high and causing the electronic device to become hot and affecting the user experience.
  • the charging device may restore the charging frequency from the first charging frequency to the second charging frequency, and continue to charge the electronic device using the second charging frequency.
  • the processing unit 12 is specifically configured to: if the power loss value is not within the preset range, continue to adjust the third charging frequency until the adjusted third charging frequency corresponds to If the power loss value is within the preset range, the adjusted third charging frequency is determined as the first charging frequency.
  • the present application also provides a readable storage medium for storing instructions, when the instructions are executed, the method for heating a battery provided by any of the foregoing embodiments is performed.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Les modes de réalisation de la présente demande divulguent un procédé et un appareil de chauffage de batterie, ainsi qu'un dispositif, se rapportant au domaine technique de la charge sans fil. Le procédé comprend les étapes suivantes dans lesquelles : un dispositif de charge reçoit un premier message envoyé par un dispositif électronique ; détermine une première fréquence de charge en fonction du premier message, la différence entre la première fréquence de charge et la fréquence centrale de résonance d'une bobine dans le dispositif de charge étant supérieure à la différence entre une seconde fréquence de charge et la fréquence centrale de résonance de la bobine dans le dispositif de charge et la seconde fréquence de charge étant la fréquence actuellement utilisée par le dispositif de charge pour charger le dispositif électronique ; ajuste la fréquence de charge utilisée pour charger le dispositif électronique de la seconde fréquence de charge à la première fréquence de charge pour chauffer une batterie du dispositif électronique. Le procédé et l'appareil de chauffage de batterie, ainsi que le dispositif fournis par les modes de réalisation de la présente invention permettent l'augmentation de la température de la batterie du dispositif électronique, de sorte que l'activité de la batterie soit améliorée et ainsi l'efficacité de charge est accrue.
PCT/CN2021/113054 2020-09-09 2021-08-17 Procédé, appareil et dispositif de chauffage de batterie WO2022052755A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010940866.6A CN114243162B (zh) 2020-09-09 2020-09-09 电池加热方法、装置和设备
CN202010940866.6 2020-09-09

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Publication Number Publication Date
WO2022052755A1 true WO2022052755A1 (fr) 2022-03-17

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Cited By (1)

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CN115360786A (zh) * 2022-08-19 2022-11-18 乐思灯具（上海）有限公司 一种灯具的无线充电控制方法、系统及计算机设备

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CN117154900B (zh) * 2023-10-30 2024-04-26 荣耀终端有限公司 充电控制方法及电子设备

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CN111137149A (zh) * 2020-01-02 2020-05-12 北京理工大学 一种非接触式动力电池低温加热、阻抗测量和充电的方法

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CN104362710B (zh) * 2014-10-20 2017-05-24 北京金山安全软件有限公司 一种无线充电器以及无线充电系统
CN108270298B (zh) * 2017-01-04 2022-12-02 中兴通讯股份有限公司 充电方法及装置
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US20130088191A1 (en) * 2011-10-05 2013-04-11 Research In Motion Limited System and method for wirelessly charging a rechargeable battery
CN105429306A (zh) * 2015-11-24 2016-03-23 深圳市特斯拉无线设备有限公司 一种无线充电能量输出装置及其充电方法
CN110459837A (zh) * 2019-08-09 2019-11-15 华为技术有限公司 电子设备和电池加热方法
CN110789400A (zh) * 2019-10-22 2020-02-14 上海交通大学 电池无线充电-加热一体化系统、控制方法及电池系统
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115360786A (zh) * 2022-08-19 2022-11-18 乐思灯具（上海）有限公司 一种灯具的无线充电控制方法、系统及计算机设备

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CN114243162A (zh) 2022-03-25

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