CN117578751A - Wireless power transmission method, system and terminal - Google Patents
Wireless power transmission method, system and terminal Download PDFInfo
- Publication number
- CN117578751A CN117578751A CN202410054973.7A CN202410054973A CN117578751A CN 117578751 A CN117578751 A CN 117578751A CN 202410054973 A CN202410054973 A CN 202410054973A CN 117578751 A CN117578751 A CN 117578751A
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- wireless power
- receiver
- wireless
- transmission
- transmitter
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 144
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000004907 flux Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- H02J50/10—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
- 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
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
Abstract
The application discloses a wireless power transmission method, a system and a terminal, which relate to the technical field of wireless power transmission, wherein the wireless power transmission method comprises the following steps: when the temperature of the wireless power transmitter is increased to a first preset temperature, starting the radiator; suspending wireless transmission of power to the wireless power receiver; and when the temperature of the wireless power transmitter is reduced to a second preset temperature, the wireless power transmitter recovers wireless transmission power to the wireless power receiver. The system comprises: the radiator opening device, the wireless transmission power device pauses and the wireless transmission power device resumes. The terminal includes a memory and a processor. The wireless power transmission device has the advantages of prolonging the service life of the wireless power transmission device and the like.
Description
Technical Field
The present disclosure relates to the field of wireless power transmission technologies, and in particular, to a wireless power transmission method, system, and terminal.
Background
The wireless power transmission technology is a non-contact power transmission technology, the wireless power transmission equipment converts power into relay energy in other forms, the relay energy can be electromagnetic waves, lasers, microwaves, mechanical waves and the like, the wireless power receiving equipment receives the relay energy and converts the relay energy into power so as to realize wireless transmission of the power, and the wireless power transmission technology can realize power transmission without wires or plug plugs.
Disclosure of Invention
In order to optimally prolong the service life of wireless power transmission equipment, the application provides a wireless power transmission method, a wireless power transmission system and a wireless power transmission terminal.
In a first aspect, the present application provides a wireless power transmission method, which may include the steps of:
when the temperature of the wireless power transmitter is increased to a first preset temperature, starting the radiator;
suspending wireless transmission of power to the wireless power receiver;
and when the temperature of the wireless power transmitter is reduced to a second preset temperature, the wireless power transmitter recovers wireless transmission power to the wireless power receiver.
In the technical scheme, the overheat condition of the wireless power transmitter can be prevented, and overheat protection is performed when the wireless power transmitter is overheated, so that the ageing speed of the wireless power transmitting equipment is effectively reduced, and the service life of the wireless power transmitting equipment is prolonged.
The solution of the first aspect of the present application may be further configured in a preferred example to:
the step of suspending wireless transmission of power to the wireless power receiver may include the steps of:
calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
marking the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency as an inefficient wireless power receiver;
suspending wireless transmission of power to the inefficient wireless power receiver.
The solution of the first aspect of the present application may be further configured in a preferred example to:
in the step of calculating the power transmission efficiency of the wireless power transmitter to transmit power to the wireless power receiver, the calculation method of calculating the power transmission efficiency is as follows:
；
wherein,for the purpose of the efficiency of the transmission of electrical energy,the number of turns of the coil is transmitted for the wireless power transmitter,for the wireless power receiver to receive the number of coil turns,for the magnetic flux generated when the radio energy transmitter performs radio energy transmission,for the magnetic flux received by the wireless power receiver,for the magnetic field strength of the wireless power transmitter when transmitting wireless power,for the strength of the magnetic field received by the wireless power receiver,，in order to begin the moment of wireless transmission of electrical energy,in order to suspend the moment of wireless transmission of power,is a hyperbolic cotangent function,as a hyperbolic sine function.
By adopting the technical scheme, the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver can be calculated efficiently.
The solution of the first aspect of the present application may be further configured in a preferred example to:
the wireless power transmission method may further include the steps of:
the wireless power receiver sends a signal of a wireless power transmission request to the wireless power transmitter;
judging whether the wireless power transmission request is passed;
when the wireless power transmission request is judged to be passed, the wireless power transmitter starts to wirelessly transmit power to the wireless power receiver.
By adopting the technical scheme, the wireless power transmitter only transmits power to the wireless power receiver passing the wireless power transmission request in a wireless manner, so that the wireless power transmission pressure of the wireless power transmitter is reduced, and the service life of the wireless power transmitting equipment is further prolonged.
The solution of the first aspect of the present application may be further configured in a preferred example to:
in the step of the radio energy transmitter starting to wirelessly transmit the electric energy to the radio energy receiver when the judgment is by the radio energy transmission request, the judgment is by the radio energy transmission request method being expressed as follows:
；
wherein,transmit power for a credit of a wireless power transmitter,for the actual transmit power of the wireless power transmitter,power is received for a credit of the wireless power receiver,for the real-time temperature of the wireless power transmitter,is a preset constant.
By adopting the technical scheme, the situation of the request for transmitting the wireless electric energy can be rapidly judged.
The solution of the first aspect of the present application may be further configured in a preferred example to:
the wireless power transmission method may further include the steps of:
the wireless power transmitter monitors the current electric quantity state of the wireless power receiver in real time;
and stopping wireless power transmission to the wireless power receiver when the current electric quantity state of the wireless power receiver is a full state.
By adopting the technical scheme, the overcharge of the wireless power receiver can be avoided.
In a second aspect, the present application provides a wireless power transmission system for implementing the wireless power transmission method, which may include:
the radiator opening device is used for opening the radiator when the temperature of the wireless power transmitter is increased to a first preset temperature;
a wireless power transmission suspension device for suspending wireless power transmission to the wireless power receiver;
and the wireless power transmission recovery device is used for recovering wireless power transmission to the wireless power receiver when the temperature of the wireless power transmitter is reduced to a second preset temperature.
The aspect of the second aspect of the present application may be further configured in a preferred example to:
the suspending wireless transmission of power means may include:
the power transmission efficiency unit is used for calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
the low-efficiency wireless power receiver marking unit is used for marking that the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency is the low-efficiency wireless power receiver;
the low-efficiency wireless power receiver pauses the transmission of the power unit for pausing the wireless transmission of the power to the low-efficiency wireless power receiver.
The aspect of the second aspect of the present application may be further configured in a preferred example to:
the wireless power transfer system may further include:
the wireless power transmission request sending device is used for sending a signal of the wireless power transmission request to the wireless power transmitter by the wireless power receiver;
judging whether the request device passes or not, and judging whether the request device passes or not;
and the wireless power transmission starting device is used for starting to wirelessly transmit power to the wireless power receiver when judging that the wireless power transmission request is passed.
In a third aspect, the present application provides a terminal comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, implements the steps of the radio energy transmission method.
In summary, compared with the prior art, the application has at least the following beneficial effects:
the wireless power transmission method adopts corresponding overheat protection measures for the wireless power transmission equipment, effectively reduces the ageing speed of the wireless power transmission equipment and prolongs the service life of the wireless power transmission equipment.
Drawings
Fig. 1 is a flow chart of a wireless power transfer method of the present application.
Fig. 2 is a block diagram of a wireless power transfer system of the present application.
Fig. 3 is a block diagram of a terminal of the present application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Examples:
as shown in fig. 1, a flowchart of a wireless power transmission method of the present embodiment specifically includes the following steps:
s1, when the temperature of a wireless power transmitter rises to a first preset temperature, starting a radiator;
s2, suspending wireless transmission of electric energy to the wireless electric energy receiver;
and S3, when the temperature of the wireless power transmitter is reduced to a second preset temperature, the wireless power transmitter recovers wireless transmission power to the wireless power receiver.
The step of suspending wireless transmission of power to the wireless power receiver specifically includes the steps of:
calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
marking the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency as an inefficient wireless power receiver;
suspending wireless transmission of power to the inefficient wireless power receiver.
In order to efficiently calculate the power transmission efficiency of the wireless power transmitter to transmit power to the wireless power receiver, in the step of calculating the power transmission efficiency of the wireless power transmitter to transmit power to the wireless power receiver, the calculation method for calculating the power transmission efficiency is as follows:
；
wherein,for the purpose of the efficiency of the transmission of electrical energy,for transmitting by radio energy transmittersThe number of turns of the coil,for the wireless power receiver to receive the number of coil turns,for the magnetic flux generated when the radio energy transmitter performs radio energy transmission,for the magnetic flux received by the wireless power receiver,for the magnetic field strength of the wireless power transmitter when transmitting wireless power,for the strength of the magnetic field received by the wireless power receiver,，in order to begin the moment of wireless transmission of electrical energy,in order to suspend the moment of wireless transmission of power,is a hyperbolic cotangent function,as a hyperbolic sine function.
In order to reduce the wireless power transmission pressure of the wireless power transmitter and further prolong the service life of the wireless power transmitting device, the wireless power transmission method may further include the following steps:
the wireless power receiver sends a signal of a wireless power transmission request to the wireless power transmitter;
judging whether the wireless power transmission request is passed;
when the wireless power transmission request is judged to be passed, the wireless power transmitter starts to wirelessly transmit power to the wireless power receiver.
In order to rapidly judge the situation of the request for transmitting the wireless power, in the step that the wireless power transmitter starts to transmit the power wirelessly to the wireless power receiver when the judgment is the request for transmitting the wireless power, the judgment is that the method for transmitting the request for transmitting the wireless power is as follows:
；
wherein,transmit power for a credit of a wireless power transmitter,for the actual transmit power of the wireless power transmitter,power is received for a credit of the wireless power receiver,for the real-time temperature of the wireless power transmitter,is a preset constant.
In order to avoid overcharging the radio energy receiver, the radio energy transmission method may further comprise the steps of:
the wireless power transmitter monitors the current electric quantity state of the wireless power receiver in real time;
and stopping wireless power transmission to the wireless power receiver when the current electric quantity state of the wireless power receiver is a full state.
As shown in fig. 2, the wireless power transmission system of the present embodiment specifically includes:
the radiator opening device is used for opening the radiator when the temperature of the wireless power transmitter is increased to a first preset temperature;
a wireless power transmission suspension device for suspending wireless power transmission to the wireless power receiver;
and the wireless power transmission recovery device is used for recovering wireless power transmission to the wireless power receiver when the temperature of the wireless power transmitter is reduced to a second preset temperature.
The device for suspending wireless transmission of electric energy specifically comprises:
the power transmission efficiency unit is used for calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
the low-efficiency wireless power receiver marking unit is used for marking that the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency is the low-efficiency wireless power receiver;
the low-efficiency wireless power receiver pauses the transmission of the power unit for pausing the wireless transmission of the power to the low-efficiency wireless power receiver.
The wireless power transmission system specifically further comprises:
the wireless power transmission request sending device is used for sending a signal of the wireless power transmission request to the wireless power transmitter by the wireless power receiver;
judging whether the request device passes or not, and judging whether the request device passes or not;
and the wireless power transmission starting device is used for starting to wirelessly transmit power to the wireless power receiver when judging that the wireless power transmission request is passed.
The terminal of this embodiment, as shown in fig. 3, includes a memory and a processor, where the memory stores a computer program that when executed by the processor implements the steps of the radio energy transmission method.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A wireless power transfer method, comprising the steps of:
when the temperature of the wireless power transmitter is increased to a first preset temperature, starting the radiator;
suspending wireless transmission of power to the wireless power receiver;
and when the temperature of the wireless power transmitter is reduced to a second preset temperature, the wireless power transmitter recovers wireless transmission power to the wireless power receiver.
2. The wireless power transfer method of claim 1, wherein the step of suspending wireless power transfer to the wireless power receiver comprises the steps of:
calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
marking the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency as an inefficient wireless power receiver;
suspending wireless transmission of power to the inefficient wireless power receiver.
3. The wireless power transmission method according to claim 2, wherein in the step of calculating the power transmission efficiency of the wireless power transmitter to transmit power to the wireless power receiver, the calculation method of calculating the power transmission efficiency is expressed as follows:
；
wherein,for the power transmission efficiency, ">Transmitting the number of turns of the coil for the radio energy transmitter, < >>For the radio energy receiver receiving coil turns, < >>Magnetic flux generated during radio energy transmission for radio energy transmitter, +.>For the magnetic flux received by the radio energy receiver, +.>Magnetic field strength for wireless power transmission of a wireless power transmitter, < >>For the intensity of the magnetic field received by the radio energy receiver, < >>，/>Is opened toTime of starting wireless transmission of electric energy, < >>To suspend the time of wireless power transfer.
4. The wireless power transfer method of claim 1, further comprising the steps of:
the wireless power receiver sends a signal of a wireless power transmission request to the wireless power transmitter;
judging whether the wireless power transmission request is passed;
when the wireless power transmission request is judged to be passed, the wireless power transmitter starts to wirelessly transmit power to the wireless power receiver.
5. The method according to claim 4, wherein in the step of the radio energy transmitter starting to wirelessly transmit the electric energy to the radio energy receiver when the judgment is made by the radio energy transmission request, the method of the judgment by the radio energy transmission request is expressed by:
；
wherein,transmit power for the credit of the radio energy transmitter, < >>For the actual transmit power of the radio energy transmitter, < >>Receive power for a credit of a radio energy receiver, < >>For the real-time temperature of the wireless power transmitter, +.>Is a preset constant.
6. The wireless power transfer method of claim 1, further comprising the steps of:
the wireless power transmitter monitors the current electric quantity state of the wireless power receiver in real time;
and stopping wireless power transmission to the wireless power receiver when the current electric quantity state of the wireless power receiver is a full state.
7. A wireless power transfer system implementing the wireless power transfer method of claim 1, comprising:
the radiator opening device is used for opening the radiator when the temperature of the wireless power transmitter is increased to a first preset temperature;
a wireless power transmission suspension device for suspending wireless power transmission to the wireless power receiver;
and the wireless power transmission recovery device is used for recovering wireless power transmission to the wireless power receiver when the temperature of the wireless power transmitter is reduced to a second preset temperature.
8. The wireless power transfer system of claim 7, wherein the suspending wireless power transfer means comprises:
the power transmission efficiency calculation unit is used for calculating the power transmission efficiency of the wireless power transmitter for transmitting power to the wireless power receiver;
the low-efficiency wireless power receiver marking unit is used for marking that the wireless power receiver with the power transmission efficiency lower than the preset power transmission efficiency is the low-efficiency wireless power receiver;
the low-efficiency wireless power receiver pauses the transmission of the power unit for pausing the wireless transmission of the power to the low-efficiency wireless power receiver.
9. The wireless power transfer system of claim 7, further comprising:
the wireless power transmission request sending device is used for sending a signal of the wireless power transmission request to the wireless power transmitter by the wireless power receiver;
judging whether the request device passes or not, and judging whether the request device passes or not;
and the wireless power transmission starting device is used for starting to wirelessly transmit power to the wireless power receiver when judging that the wireless power transmission request is passed.
10. A terminal comprising a memory and a processor, the memory having stored therein a computer program, characterized in that the computer program when executed by the processor implements the steps of the radio energy transmission method according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410054973.7A CN117578751B (en) | 2024-01-15 | 2024-01-15 | Wireless power transmission method, system and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410054973.7A CN117578751B (en) | 2024-01-15 | 2024-01-15 | Wireless power transmission method, system and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN117578751A true CN117578751A (en) | 2024-02-20 |
| CN117578751B CN117578751B (en) | 2024-03-19 |
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| CN202410054973.7A Active CN117578751B (en) | 2024-01-15 | 2024-01-15 | Wireless power transmission method, system and terminal |
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-
2024
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| JP2005328235A (en) * | 2004-05-13 | 2005-11-24 | Japan Radio Co Ltd | Wireless-device remote wire-control system |
| DE102009029253A1 (en) * | 2009-09-08 | 2011-03-10 | BSH Bosch und Siemens Hausgeräte GmbH | Method for assigning e.g. intelligent pot to base station of operating device, involves assigning attachment device to activated non-assigned base station when performance information is correlated with test pulse of base station |
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| Title |
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| 谢文燕等: "全方向无线电能传输技术研究进展", 电力系统自动化, no. 04, 15 November 2019 (2019-11-15), pages 202 - 215 * |
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| CN117578751B (en) | 2024-03-19 |
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Effective date of registration: 20240506 Address after: Room 101-4, Building 2, No. 13, Tianbao Road, Donghuan Street, Panyu District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangdong Advanced Power Technology Co.,Ltd. Country or region after: China Address before: Room 101-4, Building 2, No. 13, Tianbao Road, Donghuan Street, Panyu District, Guangzhou City, Guangdong Province, 510000 Patentee before: GUANGZHOU GRAW TECHNOLOGY Co.,Ltd. Country or region before: China |
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