CN108377036A - A kind of wireless charging system of remote-controllable multiterminal formula - Google Patents
A kind of wireless charging system of remote-controllable multiterminal formula Download PDFInfo
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- CN108377036A CN108377036A CN201810231325.9A CN201810231325A CN108377036A CN 108377036 A CN108377036 A CN 108377036A CN 201810231325 A CN201810231325 A CN 201810231325A CN 108377036 A CN108377036 A CN 108377036A
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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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
Abstract
The invention belongs to wireless charging technical fields, disclose a kind of wireless charging system of remote-controllable multiterminal formula, including main sending device, one or more sub- receiving devices；Main sending device is integrated with MCU, I/O module, radio-frequency communication module, bluetooth module, power control circuit, resonance transmission circuit；Sub- receiving device is integrated with MCU, I/O module, radio-frequency communication module, resonance reception and rectification circuit and power control circuit；Main sending device transmits radio energy to sub- receiving device, and is communicated and realized to the control of sub- receiving device operating status by internal network；Host computer and main sending device establish communication connection by bluetooth and realize that the remote control to single unit system is realized in external control, remote port with host computer by internet；Solve the problems, such as that load cannot move freely when existing wireless charging device charging；The R. concomitans of inside and outside two kinds of communication modes make this system have open, autgmentability and flexibility, have expanded the application field and use scope of wireless charging system.
Description
Technical field
The invention belongs to wireless charging technical fields, more particularly, to a kind of wireless charging of remote-controllable multiterminal formula
System.
Background technology
Wireless charging technology (WPT, Wireless Power Transfer) is a kind of with the realization of non-contacting wireless mode
The technology of energy transmission between power supply and electrical equipment, the fields such as electric vehicle, medical instrument, household small electric appliance apply compared with
It is more.In daily life, the most typical application of wireless charging technology is one-to-one mobile phone wireless charging system, structure composition
Include mainly a cradle (wireless power transmitter) and a charging adapter (radio energy receiver).Its groundwork
Principle is that transmitter converts electrical energy into alternating electromagnetic field and emitted outward by coil, and receiving coil passes through electromagnetic induction or electricity
Magnetic resonance mode gives the electromagnetic energy of collection to load (mobile phone) power supply through over commutation；In order to realize charged state control, receive and dispatch
It also needs to carry out message communication between device, sends control instruction, structure principle chart is referring to Fig.1.Such wireless charging system dress
The characteristics of setting is to use one-to-one working method, and transmitter can only be to a receiver transmission power, cannot be to multiple negative
It carries while charging.In addition, the message communication between transmitter, receiver uses one-to-one communication modes, that is, pass through sending and receiving line
Electromagnetic coupling between circle realizes data transmission to establish transmission channel.
A kind of one-to-many wireless charging method disclosed in Chinese patent CN107257168, transmitting terminal and receiving terminal to receive,
Coupled modes between hair line circle transmit the load characteristic signal of modulation, and with the transmission work(of load characteristic whistle control system
Rate.
The above existing wireless charging technology all uses electromagnetic coupling to transmit signal on communication modes.With electromagnetic coupling
In the communication system of mode, the performance of communication system can be influenced by the dispatch coil coefficient of coup.With two coils spacing and
Center offset distance increases, and the coefficient of coup becomes smaller, and signal decaying is fast, and for the stability for signal of keeping in communication, dispatch coil must be located
In low coverage, the state of standing.Thus, when to mobile load wireless charging, this system based on the communication of coil coupled modes
There may be the unstable problems of Communication Control.In addition, from communication object and range, the wireless charging of the prior art
The communication realization of system is all limited to internal communication between transmitter and receiver, and cannot externally communicate, thus it is applied
It is subject to certain restrictions.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of the wireless of remote-controllable multiterminal formula
Charging system, charging load is irremovable when its object is to overcome the problems, such as existing wireless charging device charging and cannot be real
The problem of existing external control.
To achieve the above object, according to one aspect of the present invention, a kind of wireless charging of remote-controllable multiterminal formula is provided
Electric system, including main sending device, one or more sub- receiving devices；
Wherein, there is main sending device transmit coil, sub- receiving device to have receiving coil；The size of its receiving coil is small
In the size of transmit coil, the energy acceptance range of receiving coil is in the drop shadow spread of transmit coil；Main sending device and son
Large-sized transmit coil is matched between receiving device by the receiving coil of small size to pass at a distance in a manner of magnetic-coupled
Pass energy；
The side of every sub- receiving device has the interface communicated with main sending device, sub- receiving device and main sending device
Between internal communication carried out in a manner of radio-frequency communication by the interface；The other side of sub- receiving device have for connect load to
The interface of load supplying；Main sending device has the communication interface for being communicated with host computer, and passes through host computer and interconnection
Net is communicated with remote port.
Preferably, the wireless charging system of above-mentioned remote-controllable multiterminal formula, main sending device are integrated with bluetooth module,
One radio-frequency communication module, the first MCU, the first power control circuit, resonance transmission circuit and transmit coil；
Wherein, it all has and is bi-directionally connected between bluetooth module, the first radio-frequency communication module and the first MCU；Power control electricity
The input terminal on road is connect with the first MCU, and output end is connect with the input terminal of resonance transmission circuit；Transmit coil sends electricity with resonance
Road output end is connected；
Bluetooth module between wireless charging system and external host computer for communicating；
First radio-frequency communication module is for the communication between sub- receiving device；
First MCU is for controlling the first power control circuit and bluetooth module, it is ensured that main sending device normal work；
Total emission power of first power control circuit for the regulating system under the control action of the first MCU；
Resonance transmission circuit is for generating resonance current and encouraging transmit coil；
Transmit coil is for being converted to alternating magnetic field by resonance current and emitting outward.
Preferably, the wireless charging system of above-mentioned remote-controllable multiterminal formula, main sending device further include the first I/O module,
And the human-computer interaction operating and controlling interface being connect with the first I/O module；Have between first I/O module and the first MCU and is bi-directionally connected；The
One I/O module sends out the instruction of the first MCU for receiving the instruction inputted by human-computer interaction operating and controlling interface and being sent to MCU
It is sent to the first human-computer interaction operating and controlling interface.
Preferably, the wireless charging system of above-mentioned remote-controllable multiterminal formula, sub- receiving device are integrated with the 2nd MCU,
Two radio-frequency communication modules, the second power control circuit, rectification circuit, resonance receiving circuit, receiving coil；
Wherein, have between the second radio-frequency communication module and the 2nd MCU and be bi-directionally connected；The input of second power control circuit
End is connected with the 2nd MCU；One input terminal of rectification circuit is connected with the output end of the second power control circuit, another input
End is connected with the output end of resonance receiving circuit；The input terminal of resonance receiving circuit is then connected with receiving coil；Rectification circuit
Output end is used to connect the interface of load as sub- receiving device；
Wherein, the second radio-frequency communication module between main sending device for being communicated；
Receiving coil is used to receive the alternating magnetic field energy signal of the transmit coil transmitting of main sending device；
Resonance receiving circuit is used to convert the magnetic field energy of receiving coil to oscillating current output；
Rectification circuit is for converting the high frequency oscillating current that resonance receiving circuit exports to stable direct current output；
Second power control circuit under the control of the 2nd MCU for adjusting load driving power；
2nd MCU is used for the charged state according to the communication instruction control load for receiving Intranet.
Preferably, the wireless charging system of above-mentioned remote-controllable multiterminal formula, sub- sending device further include the second I/O module,
And the second human-computer interaction operating and controlling interface being connect with the second I/O module；
Have between second I/O module and the 2nd MCU and be bi-directionally connected, passes through the second human-computer interaction operating and controlling interface for receiving
The instruction of input is simultaneously sent to the 2nd MCU, and the instruction of the 2nd MCU is sent to the second human-computer interaction operating and controlling interface.
Preferably, the wireless charging system of above-mentioned remote-controllable multiterminal formula, main sending device and every sub- receiving device
Backboard on be covered with thickness be not more than 2mm electromagnetic shielding material film.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect：
(1) wireless charging system of remote-controllable multiterminal formula provided by the invention is matched small using large scale transmit coil
Size receiving coil, sending device transmission power is big, space radiation range is wide, can drive more load equipments, sub- reception
Coil has larger energy acceptance range；Can be moved freely in main transmit coil drop shadow spread when being supported on charging without
Charge efficiency is influenced, solves the problems, such as that load cannot move freely when wireless charging device charging in the prior art；
(2) wireless charging system of remote-controllable multiterminal formula provided by the invention, constructs by equipment Intranet and internet
The two-tier network of composition, and by internal control, the external three class control controlled and remote control is constituted；Wherein by special-purpose radio-frequency
What communication module was constituted is different from the internal communication net of magnetic coupling communication modes for realizing main sending device, sub- receiving device phase
The internal control of mutual communication and charging system；System and device provide external communication interface, by bluetooth or Wi-Fi communication, with
And external control and remote control are realized in internet；The connected applications of inside and outside two kinds of communication modes make this system has to open
Property, autgmentability and flexibility, to expand the application field and use scope of wireless charging system；It is based on line relative to existing
The technical method of circle coupling communication, communication scheme in the present invention is in communication distance, reliability, cost of manufacture, autgmentability, long-range
Controllability etc. has apparent advantage；
(3) wireless charging system of remote-controllable multiterminal formula provided by the invention realizes wireless simultaneously to multiple loads
Charging, can move freely, this one-to-many, moveable, remote-controllable in a certain range when being each supported on charging
Wireless charging system, improve wireless charging system output power, enhance system controllability and measurability, reduce system synthesis sheet；
In public places such as hotel, airport, office meeting rooms, it can realize and wireless charging is carried out to multiple moveable loads, be people
Live and provide more facilities, also provided further for novel business service application pattern (such as mobile phone shares wireless charging)
Development space.
Description of the drawings
Fig. 1 is the configuration diagram of the wireless charging device of the prior art；
Fig. 2 is the embodiment principle schematic of the wireless charging system of remote-controllable multiterminal formula provided by the invention；
Fig. 3 is the frame of the main sending device of the embodiment of the wireless charging system of remote-controllable multiterminal formula provided by the invention
Structure schematic diagram；
Fig. 4 is the configuration diagram of the sub- receiving device for the wireless charging system that embodiment provides；
Fig. 5 is the Principle of Communication schematic diagram of the two-tier network three class control for the wireless charging system that embodiment provides；
Fig. 6 is the planar structure schematic diagram for the dispatch coil that the wireless charging system that embodiment provides uses.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
The wireless charging system for the remote-controllable multiterminal formula that embodiment provides with reference to Fig. 2, including main sending device, one or
Multiple sub- receiving devices；Main sending device transmits energy at a distance with sub- receiving device in a manner of magnetic-coupled；Each sub- reception
The side of equipment has the interface communicated with main sending device；The other side has the interface to power to the load for connecting load；
Main sending device has a communication interface for being communicated with host computer, the wireless charging system by host computer and internet with
Remote port communicates.
With reference to Fig. 3, the main sending device in embodiment be integrated with HC-06 bluetooth modules, nRF24l01 radio-frequency communications module,
I/O module, MCU, power control circuit, resonance transmission circuit and transmit coil；
Wherein, two-way company is all had between HC-06 bluetooth modules, nRF24l01 radio-frequency communications module, I/O module and MCU
It connects；The input terminal of power control circuit is connect with MCU, and output end is connect with the input terminal of resonance transmission circuit；Transmit coil with
Resonance transmission circuit output end is connected；
HC-06 bluetooth modules between wireless charging system and external host computer for communicating；NRF24l01 radio-frequency communication moulds
Block is for the communication between sub- receiving device；
I/O module is used for the button screen input/output interface of human-computer interaction manipulation；
MCU is for controlling I/O module, power control circuit and bluetooth module, it is ensured that sending device works normally；Power control
Circuit processed under the control action of MCU for adjusting the total emission power with control system；Resonance transmission circuit is humorous for generating
It shakes and electric current and encourages transmit coil；Transmit coil is for being converted to alternating magnetic field by resonance current and emitting outward.
Main sending device also provides human-computer interaction operating and controlling interface, including touch screen and operation button and voice prompt output connect
Mouth and Led state display lamps；Touch screen and operation button are used for input system running parameter；Voice prompt output interface is for broadcasting
Report operational status information；Led state display lamps are used to indicate the abnormality of equipment.
With reference to Fig. 4, the sub- receiving device in embodiment is integrated with I/O module, MCU, nRF24l01 radio-frequency communication module, work(
Rate control circuit, rectification circuit, resonance receiving circuit, receiving coil；
Wherein, it all has and is bi-directionally connected between nRF24l01 radio-frequency communications module, I/O module and MCU；Power control circuit
Input terminal be connected with MCU；One input terminal of rectification circuit is connected with the output end of power control circuit, another input terminal
It is connected with the output end of resonance receiving circuit；The input terminal of resonance receiving circuit is then connected with receiving coil；Rectification circuit it is defeated
Outlet is used to connect the interface of load as sub- receiving device, is configured to 5V normal voltage output interfaces in embodiment, is convenient for pair
Moveable low-power load equipment power supply；Single then receiving device is to the output power of load not less than 5W (rated output electricity
Press V=5V, output-current rating I=1000mA).
Wherein, nRF24l01 radio-frequency communications module between main sending device for being communicated；
Receiving coil is used to receive the alternating magnetic field energy signal of the transmit coil transmitting of main sending device
Resonance receiving circuit is used to convert the magnetic field energy of receiving coil to oscillating current output
Rectification circuit is for converting high frequency oscillating current to stable direct current output；
Power control circuit under the control of MCU for adjusting load driving power；
MCU is used for the charged state according to the communication instruction control load for receiving Intranet；
I/O module is used to connect the button screen input/output interface of human-computer interaction manipulation.
In embodiment, main sending device is connected by establishing external communication between bluetooth equipment and host computer, and by upper
Position machine and internet are connected with remote port by establishing communication；Remote port can be realized by internet and host computer to wireless charging
The remote control of electric system.Host computer can be based on PC desktops or smart mobile phone application program, pass through bluetooth and main sending device
Communication, to carry out external control to wireless charging system；Remote port is remote control program, is carried out by internet and host computer
The remote control to wireless charging system is realized in communication.
Internal network is formed by radio communication chip nRF24L01 networkings between main sending device and sub- receiving device；It is logical
It crosses internal network communication realization to control the operating status of sub- receiving device, a main sending device can control multiple sub- receptions
Equipment running status.Main sending device and son are realized by the transmit coil of main sending device and the receiving coil of sub- receiving device
The transmitting and reception of electromagnetic field between receiving device.
The course of work of the wireless charging system for the remote-controllable multiterminal formula that embodiment provides includes power transmission and power
It controls to adjust；One main sending device can be that six sub- receiving devices send electric energy simultaneously；Main sending device is logical by inside
It interrogates net and sends instruction to sub- receiving device, control its operating status；Host computer and/or remote port are realized external by bluetooth module
Control and/or remote control.
The process that power control is adjusted is generated by some basic control command triggerings, these control commands can be by long-range
Control mode is sent to host computer from remote port by network transmission, then is transmitted to main sending device by host computer, by main transmission
Equipment is transmitted to certain sub- receiving device by the internal network of wireless charging system, is finally held by the MCU of the sub- receiving device
This order of row.
With reference to Fig. 5, in embodiment, remote control uses the communication scheme of two-tier network three class control：Each equipment collection
A communication node is formed at a nRF24l01 radio-frequency communication module, wherein main sending device is host node, sub- reception is set
Standby is a child node, these communication nodes constitute wireless charging system internal communication net；Internet constitutes outer with bluetooth connection
Portion's communication network；The telecommunication of communication distance >=2m can be realized between host node and child node.
Electromagnetic radiation leakage in order to prevent, in embodiment, respectively in the backboard overlying of main sending device and sub- receiving device
It is stamped the electromagnetic shielding material film that thickness is not more than 2mm.
In order to realize to multiple moveable loads while wireless charging, big transmit coil is matched using small receiving coil
Mode is magnetically coupled resonant energy and transmits, and in one of which preferred embodiment, the planar structure of coil is with reference to Fig. 6；Transmit coil
For round rectangle, long * wide is 40cm*25cm；6 receiving coils are round rectangle, and long * wide is 9cm*7cm.In main transmit coil
Region (the 400mm of projection
* 250mm) in, main sending device can realize Energy Efficient with sub- receiving device in the range of spacing d≤75mm
Transmission.
Since transmit coil is big, magnetic field radiation range is wide, and receiving coil is smaller, receives magnetic field range also relatively
Greatly, thus even if receiving coil moves freely, the coefficient of coup of the two is unaffected, and system capacity efficiency of transmission keeps stablizing；
Using embodiment provide wireless charging system, can be moved freely in main transmit coil drop shadow spread when being supported on charging and
Do not influence charge efficiency.
The wireless charging system that embodiment provides, has that transmission power is big, space radiation range is wide, can drive more
The characteristics of load equipment；Transmit coil transmission power is related with its outer diameter size, and size is bigger, and its output power is bigger, drives
The quantity of dynamic load is also more.The wireless charging system that embodiment provides, main sending device can connect to N (≤6) height simultaneously
Receiving unit sends electromagnetic energy, and each sub- receiving device energy individual reception energy is without the respective working efficiency that influences each other.
Receiving coil has larger energy acceptance range (in the drop shadow spread of transmit coil), is conducive to the freedom of load
Mobile loaded without significantly affecting its charge efficiency, when solving wireless charging device charging so free-moving cannot be asked
Topic；Compared to existing wireless charging device, also have the advantages that remote-controllable, one-to-many charging.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of wireless charging system of remote-controllable multiterminal formula, which is characterized in that including main sending device, one or more sons
Receiving device；
There is the main sending device transmit coil, sub- receiving device to have receiving coil；The size of the receiving coil is less than
The size of transmit coil, the energy acceptance range of receiving coil is in the drop shadow spread of transmit coil；Main sending device connects with son
Large-sized transmit coil is matched between receiving unit by the receiving coil of small size to transmit at a distance in a manner of magnetic-coupled
Energy；
The side of each sub- receiving device has the interface communicated with main sending device, sub- receiving device and main sending device
Between internal communication carried out in a manner of radio-frequency communication by the interface；The other side of sub- receiving device have for connect load to
The interface of load supplying；Main sending device has the communication interface for being communicated with host computer, and passes through host computer and interconnection
Net is communicated with remote port.
2. wireless charging system as described in claim 1, which is characterized in that the main sending device be integrated with bluetooth module,
First radio-frequency communication module, the first MCU, the first power control circuit, resonance transmission circuit and transmit coil；
Between the bluetooth module and the first MCU, all has and be bi-directionally connected between the first radio-frequency communication module and the first MCU；The
The input terminal of one power control circuit is connect with the first MCU, and output end is connect with the input terminal of resonance transmission circuit；Transmit coil
It is connected with resonance transmission circuit output end；
The bluetooth module between wireless charging system and external host computer for communicating；
First radio-frequency communication module is for the communication between sub- receiving module；
First MCU is for controlling the first power control circuit and bluetooth module；
Total emission power of first power control circuit for the regulating system under the control of the first MCU；
Resonance transmission circuit is for generating resonance current and encouraging transmit coil；
Transmit coil is for being converted to alternating magnetic field by resonance current and emitting outward.
3. wireless charging system as claimed in claim 1 or 2, which is characterized in that the main sending device further includes the first IO
Module, and the first human-computer interaction operating and controlling interface for being connect with the first I/O module；
Have between first I/O module and the first MCU and be bi-directionally connected, passes through the first human-computer interaction operating and controlling interface for receiving
The instruction of input is simultaneously sent to the first MCU, and the instruction of the first MCU is sent to the first human-computer interaction operating and controlling interface.
4. wireless charging system as claimed in claim 1 or 2, which is characterized in that the sub- receiving device is integrated with second
MCU, the second radio-frequency communication module, the second power control circuit, rectification circuit, resonance receiving circuit, receiving coil；
Wherein, have between the second radio-frequency communication module and the 2nd MCU and be bi-directionally connected；The input terminal of second power control circuit with
2nd MCU is connected；One input terminal of rectification circuit is connected with the output end of the second power control circuit, another input terminal with
The output end of resonance receiving circuit is connected；The input terminal of resonance receiving circuit is connected with receiving coil；The output end of rectification circuit
It is used to connect the interface of load as sub- receiving device；
The second radio-frequency communication module between main sending device for being communicated；
Receiving coil is used to receive the alternating magnetic field energy signal of the transmit coil transmitting of main sending device；
Resonance receiving circuit is used to convert the magnetic field energy of receiving coil to oscillating current output；
Rectification circuit is for converting the high frequency oscillating current that resonance receiving circuit exports to stable direct current output；
Second power control circuit under the control of the 2nd MCU for adjusting load driving power；
2nd MCU is used for the charged state according to the communication instruction control load for receiving Intranet.
5. wireless charging system as claimed in claim 4, which is characterized in that the sub- sending device further includes the 2nd IO moulds
Block, and the second human-computer interaction operating and controlling interface for being connect with the second I/O module；
Have between second I/O module and the 2nd MCU and be bi-directionally connected, passes through the second human-computer interaction operating and controlling interface for receiving
The instruction of input is simultaneously sent to the 2nd MCU, and the instruction of the 2nd MCU is sent to the second human-computer interaction operating and controlling interface.
6. wireless charging system as claimed in claim 1 or 2, which is characterized in that the main sending device and each son
The electromagnetic shielding material film that thickness is not more than 2mm is covered on the backboard of receiving device.
7. wireless charging system as claimed in claim 1 or 2, which is characterized in that the transmit coil is round rectangle, long *
Width is 40cm*25cm；Receiving coil is round rectangle, and long * wide is 9cm*7cm.
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| CN201810231325.9A CN108377036B (en) | 2018-03-20 | 2018-03-20 | Remote controllable multi-terminal wireless charging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810231325.9A CN108377036B (en) | 2018-03-20 | 2018-03-20 | Remote controllable multi-terminal wireless charging system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110518678A (en) * | 2019-08-15 | 2019-11-29 | 合肥工业大学 | A kind of multi-load wireless charging system of constant-current charge |
| WO2020097926A1 (en) * | 2018-11-16 | 2020-05-22 | 深圳迈瑞生物医疗电子股份有限公司 | Automatic networking system for medical device and method for medical device to be automatically connected to wlan |
| CN111490580A (en) * | 2019-01-28 | 2020-08-04 | 北京小米移动软件有限公司 | Wireless charging receiving module, wireless charging system and terminal |
| CN113364101A (en) * | 2021-07-13 | 2021-09-07 | 中国建筑第四工程局有限公司 | Intelligent wireless charging system and method |
| WO2022041105A1 (en) * | 2020-08-28 | 2022-03-03 | Covidien Lp | Medical device wireless charging system |
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