CN108988512B - Wireless rechargeable battery in electronic equipment and charging control method thereof - Google Patents
Wireless rechargeable battery in electronic equipment and charging control method thereof Download PDFInfo
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- CN108988512B CN108988512B CN201810885385.2A CN201810885385A CN108988512B CN 108988512 B CN108988512 B CN 108988512B CN 201810885385 A CN201810885385 A CN 201810885385A CN 108988512 B CN108988512 B CN 108988512B
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- battery
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- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless rechargeable battery in electronic equipment and a charging control method thereof, wherein the method comprises the following steps: calculating a battery charging level of the wireless rechargeable battery; switching the operating mode of the wireless rechargeable battery to a receiver mode when the calculated battery charge level is below a predetermined receiver mode threshold; searching for a wireless power transmission apparatus when the operation mode is switched to the receiver mode; and receiving a power signal from the discovered wireless power transfer apparatus and charging a battery.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless rechargeable battery in electronic equipment and a charging control method thereof.
Background
Recently, with the rapid development of information and communication technologies, a ubiquitous society based on the information and communication technologies is being formed.
In order to enable information communication equipment to be connected anytime and anywhere, sensors equipped with computer chips having communication functions should be installed in all facilities throughout the society. Therefore, powering of these devices or sensors is becoming a new challenge. In addition, as the number of mobile devices such as bluetooth handsets and ipods and mobile phones rapidly increases, time and effort are required to charge the batteries. As a method for solving this problem, a wireless power transmission technique has recently attracted attention.
Wireless power transfer (or wireless energy transfer) is a technique for wirelessly transferring electrical energy from a transmitter to a receiver using the induction principle of a magnetic field. As early as the 19 th century, motors or transformers based on the principle of electromagnetic induction have been used. Thereafter, a method of transmitting electric energy by radiating electromagnetic waves such as radio waves or laser light has been attempted. Electric toothbrushes and some cordless shavers are charged by electromagnetic induction.
Up to now, wireless energy transfer schemes can be broadly classified into electromagnetic induction using short wavelength radio frequency, electromagnetic resonance, and RF transmission.
In the electromagnetic induction scheme, when two coils are arranged adjacent to each other and a current is applied to one of the coils, the magnetic flux generated at this time generates an electromotive force in the other coil. This technology is rapidly being commercialized, mainly for small devices such as mobile phones. In the electromagnetic induction scheme, power up to several hundred kilowatts (kW) can be transmitted with high efficiency, but the maximum transmission distance is less than or equal to 1 cm. As a result, the device should typically be placed near the charger or the floor.
The electromagnetic resonance scheme uses an electric field or a magnetic field instead of using an electromagnetic wave or an electric current. The electromagnetic resonance scheme is advantageous in that the scheme is safe for other electronic devices or human bodies because it is hardly affected by electromagnetic waves. However, this solution can be used only in limited distances and spaces and has a slightly lower energy transfer efficiency.
Short-wave wireless power transmission schemes (simply referred to as RF transmission schemes) utilize the fact that energy can be directly transmitted and received in the form of radio waves. The technique is an RF power transmission scheme using a rectenna. Rectennas are a composite of antennas and rectifiers, and refer to devices that convert RF power directly into Direct Current (DC) power. That is, the RF method is a technique for converting AC radio waves into DC waves. Recently, commercialization of RF technology has been actively studied with an increase in efficiency.
Disclosure of Invention
The invention provides a charging control method of a wireless rechargeable battery in electronic equipment, which comprises the following steps:
calculating a battery charging level of the wireless rechargeable battery;
switching the operating mode of the wireless rechargeable battery to a receiver mode when the calculated battery charge level is below a predetermined receiver mode threshold;
searching for a wireless power transmission apparatus when the operation mode is switched to the receiver mode; and
receiving a power signal from the discovered wireless power transfer device and charging a battery.
The method of, wherein calculating the battery charge level comprises:
measuring the battery output voltage intensity of the wireless rechargeable battery; and
and calculating the battery charging level according to the measured output voltage intensity of the battery.
The method of (a), wherein the searching for the wireless power transmission device comprises:
searching for a wireless power transmission apparatus supporting a first wireless power transmission scheme; and
when searching for a wireless power transmission apparatus supporting the first wireless power transmission scheme fails, searching for a wireless power transmission apparatus supporting the second wireless power transmission scheme.
The method of (a), wherein each of the first wireless power transmission scheme and the second wireless power transmission scheme is one of an electromagnetic resonance scheme and an electromagnetic induction scheme.
The method further comprises the following steps:
switching the operating mode of the wireless charging battery from the receiver mode to the transmitter mode when the battery charge level calculated in the receiver mode exceeds a predetermined transmitter mode threshold.
The method further comprises the following steps:
searching for a wireless power receiving apparatus when the operation mode is switched to the transmitter mode; and
transmitting a power signal to the discovered wireless power receiving device using the power charged in the battery.
The method further comprises the following steps:
when the search for the wireless power receiving apparatus in the transmitter mode fails, a return is made to the search for the wireless power transmitting apparatus.
The method of (a), wherein when power greater than or equal to a predetermined reference value is provided to the electronic device in the transmitter mode, the operation mode is switched to the receiver mode.
The method further comprises the following steps:
battery charge level information of neighboring wireless rechargeable batteries connected in parallel or in series with the wireless rechargeable battery is collected,
wherein when the battery charge level of the wireless charging battery exceeds the battery charge level of the neighboring wireless charging battery, the operation mode is switched to the transmitter mode, and the neighboring wireless charging battery is charged using the power charged in the battery.
The method of, wherein calculating the battery charge level comprises:
measuring a temperature of a resistive element connected to a positive terminal of the wireless rechargeable battery; and
the battery charge level is calculated from the measured temperature.
A wireless rechargeable battery in an electronic device, comprising:
a magnetic core;
a coil surrounding an outer periphery of the core;
a wireless power receiving unit configured to convert Alternating Current (AC) power received through a coil into Direct Current (DC) power and supply the DC power to a load;
a sensing unit configured to measure an output voltage intensity of a load; and
a controller configured to calculate a battery charge level based on the output voltage strength of the load and switch an operation mode of the wireless charging battery to a receiver mode, and search the wireless power transmission apparatus to receive the power signal charge level below a predetermined receiver mode threshold when the calculated battery.
The wireless rechargeable battery is connected with at least one slave wireless rechargeable battery in parallel or in series through a preset connecting device, and the controller is communicated with the discovered wireless power transmission device to control the master controller to control at least one slave wireless rechargeable battery to carry out wireless charging.
The wireless charging battery, wherein the controller searches for a wireless power transmission apparatus supporting a second wireless power transmission scheme when a search for a wireless power transmission apparatus supporting a first wireless power transmission scheme fails.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale,
emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic diagram of a charging control method for a wireless rechargeable battery in an electronic device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The first embodiment is as follows:
as shown in fig. 1, a schematic diagram of a charging control method for a wireless rechargeable battery in an electronic device according to the present invention, a wireless charging control method for a wireless rechargeable battery that can be installed in an electronic device, the method includes:
calculating a battery charging level of the wireless rechargeable battery;
switching the operating mode of the wireless rechargeable battery to a receiver mode when the calculated battery charge level is below a predetermined receiver mode threshold;
searching for a wireless power transmission apparatus when the operation mode is switched to the receiver mode; and
receiving a power signal from the discovered wireless power transfer device and charging a battery.
The method of, wherein calculating the battery charge level comprises:
measuring the battery output voltage intensity of the wireless rechargeable battery; and
and calculating the battery charging level according to the measured output voltage intensity of the battery.
The method of (a), wherein the searching for the wireless power transmission device comprises:
searching for a wireless power transmission apparatus supporting a first wireless power transmission scheme; and
when searching for a wireless power transmission apparatus supporting the first wireless power transmission scheme fails, searching for a wireless power transmission apparatus supporting the second wireless power transmission scheme.
The method of (a), wherein each of the first wireless power transmission scheme and the second wireless power transmission scheme is one of an electromagnetic resonance scheme and an electromagnetic induction scheme.
The method further comprises the following steps:
switching the operating mode of the wireless charging battery from the receiver mode to the transmitter mode when the battery charge level calculated in the receiver mode exceeds a predetermined transmitter mode threshold.
The method further comprises the following steps:
searching for a wireless power receiving apparatus when the operation mode is switched to the transmitter mode; and
transmitting a power signal to the discovered wireless power receiving device using the power charged in the battery.
The method further comprises the following steps:
when the search for the wireless power receiving apparatus in the transmitter mode fails, a return is made to the search for the wireless power transmitting apparatus.
The method of (a), wherein when power greater than or equal to a predetermined reference value is provided to the electronic device in the transmitter mode, the operation mode is switched to the receiver mode.
The method further comprises the following steps:
battery charge level information of neighboring wireless rechargeable batteries connected in parallel or in series with the wireless rechargeable battery is collected,
wherein when the battery charge level of the wireless charging battery exceeds the battery charge level of the neighboring wireless charging battery, the operation mode is switched to the transmitter mode, and the neighboring wireless charging battery is charged using the power charged in the battery.
The method of, wherein calculating the battery charge level comprises:
measuring a temperature of a resistive element connected to a positive terminal of the wireless rechargeable battery; and
the battery charge level is calculated from the measured temperature.
Example two:
a wireless rechargeable battery mountable in an electronic device, comprising:
a magnetic core;
a coil surrounding an outer periphery of the core;
a wireless power receiving unit configured to convert Alternating Current (AC) power received through a coil into Direct Current (DC) power and supply the DC power to a load;
a sensing unit configured to measure an output voltage intensity of a load; and
a controller configured to calculate a battery charge level based on the output voltage strength of the load and switch an operation mode of the wireless charging battery to a receiver mode, and search the wireless power transmission apparatus to receive the power signal charge level below a predetermined receiver mode threshold when the calculated battery.
The wireless rechargeable battery is connected with at least one slave wireless rechargeable battery in parallel or in series through a preset connecting device, and the controller is communicated with the discovered wireless power transmission device to control the master controller to control at least one slave wireless rechargeable battery to carry out wireless charging.
The wireless charging battery, wherein the controller searches for a wireless power transmission apparatus supporting a second wireless power transmission scheme when a search for a wireless power transmission apparatus supporting a first wireless power transmission scheme fails.
The wireless charging battery, wherein each of the first wireless power transmission scheme and the second wireless power transmission scheme is one of an electromagnetic resonance scheme and an electromagnetic induction scheme.
The wireless charging battery, wherein the controller switches the operating mode of the wireless charging battery from the receiver mode to a transmitter mode when the battery charge level calculated in the receiver mode exceeds a predetermined transmitter mode threshold.
The wireless rechargeable battery further comprises:
a wireless power transmission unit configured to transmit a power signal under control of the controller in a transmitter mode,
wherein when the operation mode is switched to the transmitter mode, the controller searches for the wireless power receiving device and controls the power charged in the battery to be transmitted to the discovered wireless power receiving device through the wireless power transmitting unit.
The wireless charging battery, wherein, when the search for the wireless power receiving apparatus in the transmitter mode fails, the controller switches the operation mode to the receiver mode to search for the wireless power transmitting apparatus.
The wireless rechargeable battery further comprises:
a power supply terminal for supplying power charged in the load to the electronic device,
wherein the controller switches the operation mode to the receiver mode when the intensity of power supplied to the electronic device in the transmitter mode is greater than or equal to a predetermined reference value.
The wireless rechargeable battery further comprises:
a communication unit configured to collect information on battery charge levels of neighboring wireless charging batteries connected in parallel or in series with the wireless charging battery,
wherein when the battery charge level of the wireless rechargeable battery exceeds the battery charge level of the neighboring wireless rechargeable battery, the controller switches the operation mode to the transmitter mode and controls the neighboring wireless rechargeable battery to be charged using the rechargeable battery. A battery.
The wireless charging battery of, wherein the sensing unit comprises a means for measuring a temperature of a resistive element connected to a positive terminal of the load,
wherein the controller calculates the battery charge level based on the measured temperature.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems or devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various stages may be added, omitted, and/or combined. Also, features described with respect to certain configurations may be combined in various other configurations. Different aspects and elements of the configuration may be combined in a similar manner. Furthermore, many of the elements that follow as technology develops are merely examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
Further, although each operation may describe the operation as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be rearranged. There may be other steps in a process. Furthermore, examples of the methods may be implemented by hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware or code, the program code or code segments to perform the necessary tasks may be stored in a non-transitory computer-readable medium such as a storage medium and the described tasks are performed by a processor.
It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (1)
1. A charging control method for a wireless rechargeable battery in an electronic device is characterized by comprising the following steps: calculating a battery charging level of the wireless rechargeable battery;
switching the operating mode of the wireless rechargeable battery to a receiver mode when the calculated battery charge level is below a predetermined receiver mode threshold;
searching for a wireless power transmission apparatus when the operation mode is switched to the receiver mode; and receiving a power signal from the discovered wireless power transfer device and charging a battery;
wherein calculating the battery charge level comprises: measuring the battery output voltage intensity of the wireless rechargeable battery; and
calculating a battery charge level according to the measured battery output voltage intensity;
wherein the searching for the wireless power transmission apparatus includes: searching for a wireless power transmission apparatus supporting a first wireless power transmission scheme; and searching for a wireless power transmission apparatus supporting the second wireless power transmission scheme when searching for the wireless power transmission apparatus supporting the first wireless power transmission scheme fails;
wherein each of the first wireless power transmission scheme and the second wireless power transmission scheme is one of an electromagnetic resonance scheme and an electromagnetic induction scheme;
wherein the method further comprises: switching the operating mode of the wireless charging battery from the receiver mode to the transmitter mode when the battery charge level calculated in the receiver mode exceeds a predetermined transmitter mode threshold;
wherein the method further comprises: searching for a wireless power receiving apparatus when the operation mode is switched to the transmitter mode; and transmitting a power signal to the discovered wireless power receiving device using the power charged in the battery;
the method further comprises the following steps: returning to the search for the wireless power transmission apparatus when the search for the wireless power reception apparatus in the transmitter mode fails;
wherein when power greater than or equal to a predetermined reference value is provided to the electronic device in the transmitter mode, the operation mode is switched to the receiver mode; further comprising: collecting battery charge level information of a neighboring wireless rechargeable battery connected in parallel or in series with the wireless rechargeable battery, wherein when the battery charge level of the wireless rechargeable battery exceeds the battery charge level of the neighboring wireless rechargeable battery, the operation mode is switched to the transmitter mode, and the neighboring wireless rechargeable battery is charged using power charged in the battery; calculating the battery charge level includes: measuring a temperature of a resistive element connected to a positive terminal of the wireless rechargeable battery; and calculating a battery charge level based on the measured temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810885385.2A CN108988512B (en) | 2018-08-06 | 2018-08-06 | Wireless rechargeable battery in electronic equipment and charging control method thereof |
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| CN201810885385.2A CN108988512B (en) | 2018-08-06 | 2018-08-06 | Wireless rechargeable battery in electronic equipment and charging control method thereof |
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| CN108988512A CN108988512A (en) | 2018-12-11 |
| CN108988512B true CN108988512B (en) | 2020-10-09 |
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| TWI741944B (en) * | 2021-02-05 | 2021-10-01 | 美律實業股份有限公司 | Wireless charging device and wireless charging switching method |
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| CN107124047A (en) * | 2017-06-27 | 2017-09-01 | 青岛鲁渝能源科技有限公司 | Radio energy transmission system and its radio communication method |
| CN107646162A (en) * | 2015-05-27 | 2018-01-30 | 高通股份有限公司 | The wireless power for being changed circuit using field is transmitted |
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| CN100588025C (en) * | 2008-01-23 | 2010-02-03 | 高甫仁 | Electromagnetic induction energy storage system |
| JP2011030294A (en) * | 2009-07-22 | 2011-02-10 | Sony Corp | Secondary battery device |
| EP3068015A4 (en) * | 2013-10-28 | 2017-10-11 | Kyocera Corporation | Control device |
| KR102363631B1 (en) * | 2014-02-20 | 2022-02-17 | 삼성전자주식회사 | Method for preventing abnormal situation in wireless charge |
| CN104362703B (en) * | 2014-11-25 | 2017-11-14 | 小米科技有限责任公司 | Wireless charging method and device |
| CN104518559A (en) * | 2014-12-31 | 2015-04-15 | 联想(北京)有限公司 | Electronic equipment and charging and discharging control method |
| JP6809118B2 (en) * | 2016-10-13 | 2021-01-06 | 富士ゼロックス株式会社 | Electronic devices, power supply devices and wireless power supply systems |
| CN106684987A (en) * | 2016-12-26 | 2017-05-17 | 广东欧珀移动通信有限公司 | Search method, device and related equipment for charging equipment |
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| CN107646162A (en) * | 2015-05-27 | 2018-01-30 | 高通股份有限公司 | The wireless power for being changed circuit using field is transmitted |
| CN107124047A (en) * | 2017-06-27 | 2017-09-01 | 青岛鲁渝能源科技有限公司 | Radio energy transmission system and its radio communication method |
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