CN103560559A - Vehicle-mounted mobile terminal wireless charging system - Google Patents
Vehicle-mounted mobile terminal wireless charging system Download PDFInfo
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- CN103560559A CN103560559A CN201310541688.XA CN201310541688A CN103560559A CN 103560559 A CN103560559 A CN 103560559A CN 201310541688 A CN201310541688 A CN 201310541688A CN 103560559 A CN103560559 A CN 103560559A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a vehicle-mounted mobile terminal wireless charging system and a using method thereof. The vehicle-mounted mobile terminal wireless charging system comprises a vehicle-mounted wireless charging emission device and a wireless receiving device of a mobile terminal, wherein the vehicle-mounted wireless charging emission device comprises a power management circuit, a communication and control circuit, a high frequency oscillation circuit, a power amplifier, a wireless transmitting coil, a coil current sampling circuit and a wireless receiving circuit; the wireless receiving device of the mobile terminal comprises a wireless transceiving circuit, a rectification filter circuit and a communication control circuit. It can be confirmed that the mobile terminal can emit charging energy after charging in a wireless communication mode, and safety and energy conservation are guaranteed. The vehicle-mounted mobile terminal wireless charging system can be directly used in a vehicle.
Description
Technical field
The present invention relates to the mobile terminal wireless charging system using in a kind of car.
Background technology
In current car, Mobile terminal charger adopts direct connection mode, when not carrying charger, cannot use; And during due to wired connection, it is not very convenient taking mobile terminal.
Existing mobile terminal wireless charger cannot be connected with automobile power source, and cannot be fixedly mounted in car.
Summary of the invention
The present invention proposes a kind of vehicle mobile terminals wireless charging system, it comprises: the radio receiver of onboard wireless charging emitter and mobile terminal, and wherein said onboard wireless charging emitter comprises: electric power management circuit, communication and control circuit, high-frequency oscillating circuits and power amplifier, wireless transmission coil, coil current sample circuit and wireless receiving circuit; The radio receiver of described mobile terminal comprises: wireless transceiver circuit, current rectifying and wave filtering circuit and communication control circuit.
Wherein, described electric power management circuit connects automobile power source;
Described communication and control circuit obtain the output voltage of Signal Regulation electric power management circuit according to wireless receiving circuit and coil sample circuit feedback;
The direct current input higher-order of oscillation and power amplification circuit after electric power management circuit conversion;
By regulating the output voltage of electric power management circuit, control power output on wireless transmission coil;
Wherein, described communication and control circuit produce the high-frequency square-wave signal that frequency range is 100KHz～250KHz.
Wherein, described power amplification circuit is comprised of efficient D class power amplifier or bridge-type.
Wherein, the high-frequency square-wave signal that described communication and control circuit produce flows to tuning circuit and wireless transmission coil after described high-frequency oscillating circuits and power amplifier amplification.
Wherein, described wireless transceiver circuit receives the power that described wireless transmission coil sends, and then by current rectifying and wave filtering circuit, is converted to 4.2V DC power supply, thereby battery of mobile terminal 13 is charged.
Wherein, the voltage of described wireless transceiver circuit by wireless receiving coil transmission receiving terminal and charging current to wireless transmission coil to calculate charge efficiency.
The invention allows for a kind of vehicle mobile terminals wireless charging method, the steps include:
Wireless transmission coil sends low-power high-frequency signal to wireless receiving coil;
Wireless receiving coil receives after effective high-frequency signal, and by the voltage and current of the receiving coil obtaining, and self ID signal returns to wireless transmission coil;
After wireless transmission coil identification id, confirm as effective charging mobile terminal module, thereby get rid of other metals;
Wireless transmission coil calculates the coupling efficiency between dispatch coil by the voltage and current information of the wireless receiving coil that obtains;
When efficiency is during lower than critical value, wireless receiving coil is not launched;
When efficiency is when charging critical point is above, can guarantee that mobile terminal can be by quick charge by increasing transmitting power;
Confirm after said process, wireless transmission coil 8 continues to send charge power to wireless receiving coil 9;
Wireless interface receiving end monitoring battery state, after battery has charged;
By wireless transceiver circuit, by wireless receiving coil, to wireless transmission coil, send charging ending request.
Compared with prior art, the beneficial effect of vehicle mobile terminals wireless charging system of the present invention is as follows:
By wireless communication mode, can confirm to launch again the energy of charging after mobile terminal can charge, thereby guarantee safe and energy-conservation.Can directly in car, use.
Mounting means is flexible, take, and guarantee can landing in driving process thereby can provide best position to be convenient to mobile terminal according to different automobile constructions.
Can charge to the mobile terminal of existing wireless receiver module.
Can provide receiving system for the mobile terminal without receiver module, realize wireless charging function.
Be widely used, the receiver module of other portable type electronic products can be provided, realize wireless charging function.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the vehicle mobile terminals wireless charging system consistent with the embodiment of the present invention.
Specific embodiment
The device that a kind of vehicle mobile terminals wireless charging is provided of the present invention.Adopting the close-coupled of the wireless receiving module of onboard wireless charging emitter and mobile terminal is that mobile terminal carries out wireless charging in car.Onboard wireless charging emitter comprises: electric power management circuit, communication and control circuit, high-frequency oscillating circuits and power amplifier, wireless transmission coil, coil current sample circuit, wireless receiving circuit; Mobile terminal end wireless receiving module comprises: wireless receiving coil, wireless transceiver circuit, current rectifying and wave filtering circuit and communication control circuit.
The present invention relates to vehicle mobile terminals wireless charging emitter and be connected to automobile power source, and can receive when charging and by transmitting coil, send after being converted into high-frequency wireless signals mobile terminal being detected; First mobile terminal end needs notified charging device to charge and received with wireless receiving module the corresponding energy that wireless charging emitter sends by signal, and after rectifying and voltage-stabilizing, being converted to constant dc is mobile terminal charging.
Onboard wireless charging module of the present invention can directly charge to the mobile terminal of the charging of integrated wireless receiver module; After can configuring receiver module for the mobile terminal of wireless receiving module, charge.
As shown in Figure 1, vehicle mobile terminals wireless charging system is powered by automobile power source 1, and electric power management circuit 2 is Boost-Buck circuit, and its general+12V automobile power source is converted to 5V～20V direct current.The signal that this voltage can obtain according to wireless receiving circuit 6 and coil sample circuit 5 feedbacks by communication and control circuit 3 regulates; DC power supply after electric power management circuit 2 conversions is to the higher-order of oscillation and power amplification circuit 4 power supplies; Because electric power management circuit 2 can regulation voltage, therefore can be by regulating the output voltage of electric power management circuit 2 control power output on wireless transmission coil 8.Tuning capacitance 7 is the frequency match for oscillating circuit.
Communication and control circuit 3 can produce the high-frequency square-wave signal that frequency range is 100KHz～250KHz, and this signal amplifies by high-frequency oscillating circuits and power amplification circuit 4.Amplifying circuit is comprised of efficient D class power amplifier or bridge-type (half-bridge or full-bridge).The high-frequency square-wave signal being produced by communication and control circuit 3 flows to tuning circuit 7 and transmitting coil 8 after high-frequency oscillating circuits and power amplifier 4 amplifications.Wireless transmission coil 8 regulates resonance by shunt capacitance, make coil can resonance in the frequency of needs transmitting.
5 pairs of coil currents of coil current sample circuit are sampled and are exported analog voltage, and its voltage is corresponding with coil current value; A/D sample circuit in communication and control circuit 3 reads this magnitude of voltage, thus monitoring cable loop current.It can be by regulating the output voltage values of electric power management circuit 2 to realize the transmitting power of closed-loop control less radio-frequency coil 8.
Wireless receiving coil 9 and tuning capacitance 10 form wireless transceiver circuit, receive the power that wireless transmission coil 8 sends, then by the bridge rectifier in current rectifying and wave filtering circuit 11, be converted to 4.2V DC power supply, thereby can charge to battery of mobile terminal 13.In addition, in wireless transceiver circuit 12, can transmit the voltage of receiving terminal and charging current to wireless transmission coil-end by wireless receiving coil 9; Thereby can calculate charge efficiency.
The concrete steps of charging are as follows:
Wireless transmission coil 8 sends low-power high-frequency signal to wireless receiving coil 9.
Wireless receiving coil 9 receives after effective high-frequency signal, and by the receiving coil voltage and current obtaining, and self ID signal returns to wireless transmission coil 8.
After wireless transmission coil 8 identification ids, confirm as effective charging mobile terminal module, thereby get rid of other metals; In addition, wireless transmission coil 8 calculates the coupling efficiency between dispatch coil by the voltage and current information of the wireless receiving coil 9 that obtains; When efficiency is during lower than critical value (as below 35%), to 8 transmittings of wireless receiving coil; When efficiency is more than charging critical point, but during lower than optimum charging scope (as 90% left and right), can guarantee that mobile terminal can be by quick charge by increasing transmitting power.
Confirm after said process, the charge power that wireless transmission coil 8 continues to send optimization is to wireless receiving coil 9.
Wireless interface receiving end monitoring battery state, after battery has charged; By wireless transceiver circuit 12, by wireless receiving coil 9, to transmitting terminal coil 8, send charging ending request.
Reflector complete charge, enters monitoring holding state.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a vehicle mobile terminals wireless charging system, it comprises: the radio receiver of onboard wireless charging emitter and mobile terminal, wherein
Described onboard wireless charging emitter comprises: electric power management circuit, communication and control circuit, high-frequency oscillating circuits and power amplifier, wireless transmission coil, coil current sample circuit and wireless receiving circuit;
The radio receiver of described mobile terminal comprises: wireless transceiver circuit, current rectifying and wave filtering circuit and communication control circuit.
2. vehicle mobile terminals wireless charging system as claimed in claim 1, wherein
Described electric power management circuit connects automobile power source;
Described communication and control circuit obtain the output voltage of Signal Regulation electric power management circuit according to wireless receiving circuit and coil sample circuit feedback;
The direct current input higher-order of oscillation and power amplification circuit after electric power management circuit conversion;
By regulating the output voltage of electric power management circuit, control power output on wireless transmission coil.
3. vehicle mobile terminals wireless charging system as claimed in claim 1, wherein said communication and control circuit produce the high-frequency square-wave signal that frequency range is 100KHz～250KHz.
4. vehicle mobile terminals wireless charging system as claimed in claim 1, wherein said power amplification circuit is comprised of efficient D class power amplifier or bridge-type.
5. vehicle mobile terminals wireless charging system as claimed in claim 1, the high-frequency square-wave signal that wherein said communication and control circuit produce flows to tuning circuit and wireless transmission coil after described high-frequency oscillating circuits and power amplifier amplify.
6. vehicle mobile terminals wireless charging system as claimed in claim 1, wherein said wireless transceiver circuit receives the power that described wireless transmission coil sends, and then by current rectifying and wave filtering circuit, is converted to 4.2V DC power supply, and battery of mobile terminal 13 is charged.
7. vehicle mobile terminals wireless charging system as claimed in claim 1, the voltage of wherein said wireless transceiver circuit by wireless receiving coil transmission receiving terminal and charging current to wireless transmission coil to calculate charge efficiency.
8. a vehicle mobile terminals wireless charging method, the steps include:
Wireless transmission coil sends low-power high-frequency signal to wireless receiving coil;
Wireless receiving coil receives after effective high-frequency signal, and by the voltage and current of the receiving coil obtaining, and self ID signal returns to wireless transmission coil;
After wireless transmission coil identification id, confirm as effective charging mobile terminal module, thereby get rid of other metals;
Wireless transmission coil calculates the coupling efficiency between wireless receiving coil and wireless transmission coil by the voltage and current information of the wireless receiving coil that obtains;
When efficiency is during lower than critical value, wireless receiving coil is not launched;
When efficiency is when charging critical point is above, can guarantee that mobile terminal is by quick charge by increasing transmitting power;
Confirm after said process, wireless transmission coil 8 continues to send charge power to wireless receiving coil 9;
Wireless interface receiving end monitoring battery state, after battery has charged, sends charging ending request by wireless receiving coil to wireless transmission coil by wireless transceiver circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310541688.XA CN103560559A (en) | 2013-11-05 | 2013-11-05 | Vehicle-mounted mobile terminal wireless charging system |
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| CN201310541688.XA CN103560559A (en) | 2013-11-05 | 2013-11-05 | Vehicle-mounted mobile terminal wireless charging system |
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| CN103560559A true CN103560559A (en) | 2014-02-05 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037918A (en) * | 2014-07-08 | 2014-09-10 | 江苏天行健汽车科技有限公司 | Wireless charging system and method for magnetic resonance type vehicle-mounted mobile terminal |
| CN104065142A (en) * | 2014-07-08 | 2014-09-24 | 江苏天行健汽车科技有限公司 | Multi-mode vehicle-mounted wireless charging device comprising negative ion generator |
| CN104124727A (en) * | 2014-03-31 | 2014-10-29 | 深圳市泰金田科技有限公司 | Frequency conversion voltage stabilizing electric automobile wireless charging device |
| CN104135088A (en) * | 2014-08-08 | 2014-11-05 | 哈尔滨工业大学 | Non-identical transmitting and receiving coil pair applicable to wireless power transmission and capable of restraining frequency splitting and manufacturing method of non-identical transmitting and receiving coil pair |
| CN104201730A (en) * | 2014-08-12 | 2014-12-10 | 华南理工大学 | Wireless charging circuit of electric vehicle |
| CN104333067A (en) * | 2014-10-31 | 2015-02-04 | 华南理工大学 | Wireless charging circuit |
| CN105024458A (en) * | 2014-04-30 | 2015-11-04 | 中国海洋大学 | Apparatus of performing contactless electric energy transmission on human implantable device |
| CN110535246A (en) * | 2019-08-19 | 2019-12-03 | 吉利汽车研究院（宁波）有限公司 | A kind of wireless charging method, terminal and vehicle |
| CN110829559A (en) * | 2019-11-11 | 2020-02-21 | 北京品驰医疗设备有限公司 | Implantable medical system and wireless energy transmission power control method and device thereof |
| CN111555379A (en) * | 2020-04-13 | 2020-08-18 | 江苏讯展智能科技有限公司 | Charger with identity recognition function and recognition method thereof |
| CN111740764A (en) * | 2020-06-17 | 2020-10-02 | 珠海优特电力科技股份有限公司 | Wireless control method and system |
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| US20130038279A1 (en) * | 2011-08-12 | 2013-02-14 | GM Global Technology Operations LLC | Wireless battery charging apparatus mounted in a vehcle designed to reduce electromagnetic interference |
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| CN101971453A (en) * | 2007-05-08 | 2011-02-09 | 莫琼移动股份有限公司 | System and method for inductive charging of portable devices |
| CN102684315A (en) * | 2011-02-21 | 2012-09-19 | 索尼公司 | Power transmission device, power transmission method, and power transmission system |
| US20130038279A1 (en) * | 2011-08-12 | 2013-02-14 | GM Global Technology Operations LLC | Wireless battery charging apparatus mounted in a vehcle designed to reduce electromagnetic interference |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124727A (en) * | 2014-03-31 | 2014-10-29 | 深圳市泰金田科技有限公司 | Frequency conversion voltage stabilizing electric automobile wireless charging device |
| CN105024458A (en) * | 2014-04-30 | 2015-11-04 | 中国海洋大学 | Apparatus of performing contactless electric energy transmission on human implantable device |
| CN105024458B (en) * | 2014-04-30 | 2017-05-31 | 中国海洋大学 | The device of contactless electrical energy transmission is carried out to human body implantation type equipment |
| CN104065142A (en) * | 2014-07-08 | 2014-09-24 | 江苏天行健汽车科技有限公司 | Multi-mode vehicle-mounted wireless charging device comprising negative ion generator |
| CN104037918A (en) * | 2014-07-08 | 2014-09-10 | 江苏天行健汽车科技有限公司 | Wireless charging system and method for magnetic resonance type vehicle-mounted mobile terminal |
| CN104135088A (en) * | 2014-08-08 | 2014-11-05 | 哈尔滨工业大学 | Non-identical transmitting and receiving coil pair applicable to wireless power transmission and capable of restraining frequency splitting and manufacturing method of non-identical transmitting and receiving coil pair |
| CN104201730A (en) * | 2014-08-12 | 2014-12-10 | 华南理工大学 | Wireless charging circuit of electric vehicle |
| CN104333067A (en) * | 2014-10-31 | 2015-02-04 | 华南理工大学 | Wireless charging circuit |
| CN110535246A (en) * | 2019-08-19 | 2019-12-03 | 吉利汽车研究院（宁波）有限公司 | A kind of wireless charging method, terminal and vehicle |
| CN110829559A (en) * | 2019-11-11 | 2020-02-21 | 北京品驰医疗设备有限公司 | Implantable medical system and wireless energy transmission power control method and device thereof |
| CN111555379A (en) * | 2020-04-13 | 2020-08-18 | 江苏讯展智能科技有限公司 | Charger with identity recognition function and recognition method thereof |
| CN111740764A (en) * | 2020-06-17 | 2020-10-02 | 珠海优特电力科技股份有限公司 | Wireless control method and system |
| CN111740764B (en) * | 2020-06-17 | 2023-05-12 | 珠海优特电力科技股份有限公司 | Wireless control method and system |
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Application publication date: 20140205 |