CN203406687U - Intelligent vehicle-mounted mobile phone wireless charging system - Google Patents
Intelligent vehicle-mounted mobile phone wireless charging system Download PDFInfo
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- CN203406687U CN203406687U CN201320392791.8U CN201320392791U CN203406687U CN 203406687 U CN203406687 U CN 203406687U CN 201320392791 U CN201320392791 U CN 201320392791U CN 203406687 U CN203406687 U CN 203406687U
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Abstract
The utility model provides an intelligent vehicle-mounted mobile phone wireless charging system. The wireless charging system comprises an energy transmitting module and an energy receiving module, wherein the energy emitting module comprises a whole vehicle power supply, a transmitting circuit, a control circuit and a detection circuit, the output end of the whole vehicle power supply is connected with the transmitting circuit, the detection circuit is connected on the transmitting circuit, the output end of the detection circuit is connected with the control circuit, the control circuit generates a control signal based on the detection signal of the detection circuit and outputs the control signal to the transmitting circuit, the transmitting circuit comprises a transmitting coil for transmitting the electromagnetic energy, and the detection circuit comprises a current shunt detector. The detection circuit is arranged in the wireless charging system, so as to automatically judge the working states of the charging load side such as the access state, the electric quantity state and the short-circuit situation of the charged mobile phone, automatically control the working of the wireless charging system based on the judgment, reduce the charging energy source and avoid the short-circuit risk.
Description
Technical field
The utility model belongs to vehicle carried mobile phone charging technique field, relates more specifically to a kind of intelligentized vehicle carried mobile phone wireless charging system.
Background technology
Vehicle carried mobile phone wireless charging technology is the very wide New-type charge technology of current development prospect, it utilizes the inductive energy transmission of frequency electromagnetic waves to complete charging process, overcome the dependence to data wire or power line in existing wired charging technique, also avoided the multifarious constraint of charging connector between different mobile phones simultaneously.But in current mobile phone wireless charging system, lack the testing circuit that charging load access situation is judged; make transmitting coil in wireless charging system all the time in normal energy emission state; this will cause when there is no charging load or the load charging power dissipation at full capacity time; and when load generation overcurrent or short trouble, cannot carry out circuit protection timely.
Utility model content
The above-mentioned technological deficiency existing for overcoming current vehicle carried mobile phone wireless charging system, the utility model proposes a kind of intelligentized vehicle carried mobile phone wireless charging system, by testing circuit is set therein, can automatically differentiate the operating state of charging load end, access state, state of charge and the short-circuit conditions etc. that comprise charge mobile phone, and based on this judgement, the work of wireless charging system is controlled automatically, reduced charging energy consumption and avoided short circuit risk.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A kind of vehicle carried mobile phone wireless charging system, comprise energy transmitter module and energy receiver module, described energy transmitter module comprises car load power supply, radiating circuit, control circuit and testing circuit, the output of described car load power supply connects described radiating circuit, on described radiating circuit, be connected with described testing circuit, the output of described testing circuit is connected in control circuit, the detection signal of described control circuit based on testing circuit generates control signal and exports described radiating circuit to, described radiating circuit comprises for launching the transmitting coil of electromagnetic energy, described testing circuit includes current distributing detector.
Further according to vehicle carried mobile phone wireless charging system described in the utility model, wherein said radiating circuit comprises resistance R 2, resistance R 5, resistance R 6, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, capacitor C 5, capacitor C 6, capacitor C 7 and described transmitting coil, wherein resistance R 2 one end connect car load power supply, the other end of resistance R 2 connects drain electrode and the capacitor C 5 of metal-oxide-semiconductor Q1, capacitor C 6, the other end of capacitor C 5 connects capacitor C 7, the other end ground connection of capacitor C 7 and C6, the grid contact resistance R5 of metal-oxide-semiconductor Q1, the source electrode of metal-oxide-semiconductor Q1 connects the drain electrode of metal-oxide-semiconductor Q2, the source ground of metal-oxide-semiconductor Q2, the grid contact resistance R6 of metal-oxide-semiconductor Q2, one end of transmitting coil is connected between the source electrode of metal-oxide-semiconductor Q1 and the drain electrode of metal-oxide-semiconductor Q2, the other end of transmitting coil is connected between capacitor C 5 and capacitor C 7.
Further according to vehicle carried mobile phone wireless charging system described in the utility model, wherein said testing circuit comprises resistance R 1, resistance R 4, resistance R 3, capacitor C 1, capacitor C 2, capacitor C 4 and described current distributing detector, one end of resistance R 1 and resistance R 4 is connected to the two ends of resistance R 2, the other end of resistance R 1 connects one end of capacitor C 2 and the positive input IN+ of current distributing detector, the other end of resistance R 4 connects the other end of capacitor C 2 and the negative input IN-of current distributing detector, power end V+ and the VCC power supply of one termination current distributing detector of capacitor C 1, the reference edge REF of the other end of capacitor C 1 and current distributing detector is ground connection together, the earth terminal GND ground connection of current distributing detector, the output OUT contact resistance R3 of current distributing detector, the other end of resistance R 3 connects capacitor C 4, the other end ground connection of capacitor C 4.
Further according to vehicle carried mobile phone wireless charging system described in the utility model, the input of wherein said control circuit is connected between described resistance R 3 and capacitor C 4, resistance R 5, the second outputs that the first output of described control circuit connects in radiating circuit connect the resistance R 6 in radiating circuit.
Further, according to vehicle carried mobile phone wireless charging system described in the utility model, the output of wherein said car load power supply is connected with filter capacitor C3.
Further according to vehicle carried mobile phone wireless charging system described in the utility model, wherein said energy receiver module includes receiving circuit, and described receiving circuit comprises that the receiving coil corresponding with described transmitting coil and the power conversion that receiving coil is received are the adapter circuit of mobile phone rechargeable electrical energy.
By technical scheme described in the utility model, at least can reach following technique effect:
1), vehicle carried mobile phone wireless charging system described in the utility model intelligently cognitive radio charging system whether access load, whether load charged to full load condition, thereby control the energy emission state of transmitting coil in good time, avoid not connecing transmitting coil under the full nuclear state of load or charging and continued the waste of energy that emitted energy causes, reduced charging energy consumption;
2), vehicle carried mobile phone wireless charging system described in the utility model intelligently the load end of cognitive radio charging system whether there is short circuit, effectively protected charging system circuit, improved the useful life of wireless charging system;
3), vehicle carried mobile phone wireless charging system circuit structure described in the utility model is simple, reliability is high, cost is low.
Accompanying drawing explanation
Accompanying drawing 1 is the system configuration schematic diagram of vehicle carried mobile phone wireless charging system described in the utility model;
Accompanying drawing 2 is the electrical block diagram of energy transmitter module in vehicle carried mobile phone wireless charging system described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail, so that those skilled in the art can more clearly understand scheme of the present utility model, but with this, does not limit protection range of the present utility model.
As shown in Figure 1, vehicle carried mobile phone wireless charging system described in the utility model comprises energy transmitter module and energy receiver module, energy transmitter module wherein comprises car load power supply, radiating circuit, control circuit and testing circuit, the output of car load power supply connects radiating circuit, on radiating circuit, be connected with testing circuit, for providing detection signal to it, the output of testing circuit connects control circuit, in order to feed back detection signal to it, the control signal output of control circuit connects radiating circuit, in order to control the operating state of radiating circuit, radiating circuit wherein includes the transmitting coil for the transmitting of wireless charging energy.Described energy receiver module comprises receiving circuit, the power conversion that includes the receiving coil corresponding with described transmitting coil in described receiving circuit and receiving coil is received is the adapter circuit of mobile phone rechargeable electrical energy, described adapter circuit connects the mobile phone load of intending charging, innovation of the present utility model is to be provided with in energy transmitter module to the testing circuit of loading condition in energy receiver module and the control carried out based on testing result, so following emphasis is described the innovation circuit structure of this energy transmitter module.
As shown in Figure 2, the included radiating circuit of energy transmitter module comprises resistance R 2, R5, R6, metal-oxide-semiconductor Q1, Q2, capacitor C 5, C6, C7 and transmitting coil L1, resistance R 2 one termination car load power supply Vin wherein, the other end connects drain electrode and the capacitor C 5 of metal-oxide-semiconductor Q1, C6, the other end of capacitor C 5 connects capacitor C 7, the other end ground connection of capacitor C 7 and C6, the grid of metal-oxide-semiconductor Q1 is connected in control circuit by resistance R 5, the source electrode of metal-oxide-semiconductor Q1 connects the drain electrode of metal-oxide-semiconductor Q2, the source ground of metal-oxide-semiconductor Q2, the grid of metal-oxide-semiconductor Q2 is connected in control circuit by resistance R 6, one end of transmitting coil L1 is connected between the source electrode of metal-oxide-semiconductor Q1 and the drain electrode of Q2, the other end of transmitting coil L1 is connected between capacitor C 5 and C7.
The included testing circuit of energy transmitter module comprises resistance R 1, R4, R3, capacitor C 1, C2, C4 and current distributing detector U1, one end of resistance R 1 and R4 is connected to the two ends of resistance R 2, the other end of resistance R 1 connects one end and the current distributing detector U1 positive input IN+ of capacitor C 2, the other end of resistance R 4 connects the other end and the current distributing detector U1 negative input IN-of capacitor C 2, capacitor C 2 two ends are connected in parallel on the IN+ of U1, between IN-, power end V+ and the VCC power supply (3.3V_VCC) of one termination current distributing detector U1 of capacitor C 1, the reference edge REF of another termination current distributing detector U1, REF ground connection, the GND ground connection of current distributing detector U1, the output OUT connecting resistance R3 of current distributing detector U1, the R3 other end connects capacitor C 4 and control circuit, capacitor C 4 other end ground connection.Testing circuit exports detection signal to control circuit by resistance R 3.
Described control circuit connects the grid of metal-oxide-semiconductor Q1 by the resistance R 5 in radiating circuit, connect the grid of metal-oxide-semiconductor Q2 by resistance R 6.
Further can between car load power supply VIN and ground, meet filter capacitor C3.
In energy transmitter module described in the utility model, the specific works process of each circuit is:
Control circuit sends that duty ratio is 0.5, the pwm signal of periodic inequality half is to metal-oxide-semiconductor Q1, Q2 in radiating circuit, and each opens shutoff half period with complementary type in one-period for Q1, Q2.In front half period, Q1 is open-minded, Q2 turn-offs, electric current is via R2, Q1, L1 and C7 are to ground, in another half period, Q1 turn-offs, Q2 is open-minded, electric current is via R2, C5, L1 and Q2 are to ground, make to pass through all the time in transmitting coil L1 alternating current, send magnetic field energy, electric current flows through sampling resistor R2 simultaneously, at its two ends, form sampled voltage Vs, process after filtering the difference input voltage as current distributing detector U1, the voltage Vo_sense=K*Vs that current distributing detector U1 output is directly proportional to sampled voltage is to control circuit, because receiving circuit load is in connecting or notconnect state, when full state and short-circuit condition, to cause that the electric current in former secondary coil changes, and then make above-mentioned current distributing detector U1 export different voltage Vo_sense, and in control circuit, be preset with the voltage range that should export corresponding to the current distributing detector U1 in different operating situation, therefore by the residing scope of power supply of the relatively actual output of current distributing detector U1, can judge receiving circuit loading condition, and then take appropriate measures, below this course of work is specifically described.
After complete machine powering, radiating circuit is started working, if receiving circuit part is not taken over machine load, the electric current that now flows through transmitting coil L1 is I1, this electric current is that L1 is as the electric current of inductive load, voltage on current sense resistor R2 is Vs1, corresponding U1 output voltage V o_sense1=K*Vs1 is to control circuit, control circuit judges this Vo_sense1, Vo_sense1 is now between predetermined voltage interval 0 to Vref1, and control circuit judges and holding circuit is operated in detected state.
When receiving circuit partly accesses mobile phone load, by electromagnetic induction, generation current supply load charge secondary coil, according to the current relationship of electromagnetic induction principle Central Plains secondary, the electric current that now flows through transmitting coil L1 will be increased to I2, corresponding voltage on current sense resistor R2 is Vs2, corresponding U1 output voltage V o_sense2=K*Vs2 is to control circuit, now Vo_sense2 is between voltage range Vref2 and Vref3, control circuit judges Vo_sense2, and makes circuit working at energy emission state.
If load has completed charging, because receiving coil electric current is reduced to the state that voltage stabilizing is only provided for load, the electric current that now flows through transmitting coil L1 is I3, the upper voltage of current sense resistor R2 is Vs3, o_sense3=K*Vs3 is to control circuit for U1 output voltage V, now Vo_sense3 is at voltage range Vref4 between Vref5, and control circuit judges and make circuit to quit work to Vo_sense3.
When output overcurrent or short circuit, the electric current that now flows through transmitting coil L1 is I4, and the upper voltage of current sense resistor R2 is Vs4, and o_sense4=K*Vo4 is to control circuit for U1 output voltage V, now Vo_sense4 will be greater than reference voltage Vref 6, and control circuit judges and make circuit to quit work.
Below be only that preferred implementation of the present utility model is described; the technical solution of the utility model is not limited to this; the any known distortion that those skilled in the art do on the basis of major technique of the present utility model design all belongs to the claimed technology category of the utility model, and the concrete protection range of the utility model is as the criterion with the record of claims.
Claims (6)
1. an intelligent vehicle carried mobile phone wireless charging system, comprise energy transmitter module and energy receiver module, it is characterized in that, described energy transmitter module comprises car load power supply, radiating circuit, control circuit and testing circuit, the output of described car load power supply connects described radiating circuit, on described radiating circuit, be connected with described testing circuit, the output of described testing circuit is connected in control circuit, the detection signal of described control circuit based on testing circuit generates control signal and exports described radiating circuit to, described radiating circuit comprises for launching the transmitting coil of electromagnetic energy, described testing circuit includes current distributing detector.
2. intelligent vehicle carried mobile phone wireless charging system according to claim 1, it is characterized in that, described radiating circuit comprises resistance R 2, resistance R 5, resistance R 6, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, capacitor C 5, capacitor C 6, capacitor C 7 and described transmitting coil, wherein resistance R 2 one end connect car load power supply, the other end of resistance R 2 connects the drain electrode of metal-oxide-semiconductor Q1, one end of one end of capacitor C 5 and capacitor C 6, the other end of capacitor C 5 connects capacitor C 7, the other end ground connection of capacitor C 7 and capacitor C 6, the grid contact resistance R5 of metal-oxide-semiconductor Q1, the source electrode of metal-oxide-semiconductor Q1 connects the drain electrode of metal-oxide-semiconductor Q2, the source ground of metal-oxide-semiconductor Q2, the grid contact resistance R6 of metal-oxide-semiconductor Q2, one end of transmitting coil is connected between the source electrode of metal-oxide-semiconductor Q1 and the drain electrode of metal-oxide-semiconductor Q2, the other end of transmitting coil is connected between capacitor C 5 and capacitor C 7.
3. intelligent vehicle carried mobile phone wireless charging system according to claim 2, it is characterized in that, described testing circuit comprises resistance R 1, resistance R 4, resistance R 3, capacitor C 1, capacitor C 2, capacitor C 4 and described current distributing detector, one end of resistance R 1 and resistance R 4 is connected to the two ends of resistance R 2, the other end of resistance R 1 connects one end of capacitor C 2 and the positive input IN+ of current distributing detector, the other end of resistance R 4 connects the other end of capacitor C 2 and the negative input IN-of current distributing detector, one end of capacitor C 1 connects power end V+ and the VCC power supply of current distributing detector, the reference edge REF of the other end of capacitor C 1 and current distributing detector is ground connection together, the earth terminal GND ground connection of current distributing detector, the output OUT contact resistance R3 of current distributing detector, the other end of resistance R 3 connects capacitor C 4, the other end ground connection of capacitor C 4.
4. intelligent vehicle carried mobile phone wireless charging system according to claim 3, it is characterized in that, the input of described control circuit is connected between described resistance R 3 and capacitor C 4, resistance R 5, the second outputs that the first output of described control circuit connects in radiating circuit connect the resistance R 6 in radiating circuit.
5. according to the intelligent vehicle carried mobile phone wireless charging system described in claim 1-4 any one, it is characterized in that, the output of described car load power supply is connected with filter capacitor C3.
6. according to the intelligent vehicle carried mobile phone wireless charging system described in claim 1-4 any one, it is characterized in that, described energy receiver module includes receiving circuit, and described receiving circuit comprises that the receiving coil corresponding with described transmitting coil and the power conversion that receiving coil is received are the adapter circuit of mobile phone rechargeable electrical energy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320392791.8U CN203406687U (en) | 2013-07-03 | 2013-07-03 | Intelligent vehicle-mounted mobile phone wireless charging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320392791.8U CN203406687U (en) | 2013-07-03 | 2013-07-03 | Intelligent vehicle-mounted mobile phone wireless charging system |
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| CN203406687U true CN203406687U (en) | 2014-01-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812093A (en) * | 2014-02-27 | 2014-05-21 | 奇瑞汽车股份有限公司 | Protecting circuit for receiving end of vehicle-mounted wireless charger for mobile phone |
| CN108275029A (en) * | 2018-03-15 | 2018-07-13 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile of charge information interaction |
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
| CN109324246A (en) * | 2018-09-28 | 2019-02-12 | 惠州市德赛西威汽车电子股份有限公司 | A kind of Auto-Test System and method of testing mobile phone charging compatibility |
| CN111953084A (en) * | 2020-08-12 | 2020-11-17 | 安洁无线科技（苏州）有限公司 | Wireless charging topological structure and load short-circuit protection method |
-
2013
- 2013-07-03 CN CN201320392791.8U patent/CN203406687U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812093A (en) * | 2014-02-27 | 2014-05-21 | 奇瑞汽车股份有限公司 | Protecting circuit for receiving end of vehicle-mounted wireless charger for mobile phone |
| CN103812093B (en) * | 2014-02-27 | 2017-05-10 | 奇瑞汽车股份有限公司 | Protecting circuit for receiving end of vehicle-mounted wireless charger for mobile phone |
| CN108275029A (en) * | 2018-03-15 | 2018-07-13 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile of charge information interaction |
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
| CN109324246A (en) * | 2018-09-28 | 2019-02-12 | 惠州市德赛西威汽车电子股份有限公司 | A kind of Auto-Test System and method of testing mobile phone charging compatibility |
| CN111953084A (en) * | 2020-08-12 | 2020-11-17 | 安洁无线科技（苏州）有限公司 | Wireless charging topological structure and load short-circuit protection method |
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