CN203761094U - Solar-energy wireless charger - Google Patents

Solar-energy wireless charger Download PDF

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Publication number
CN203761094U
CN203761094U CN201420102936.0U CN201420102936U CN203761094U CN 203761094 U CN203761094 U CN 203761094U CN 201420102936 U CN201420102936 U CN 201420102936U CN 203761094 U CN203761094 U CN 203761094U
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China
Prior art keywords
electric energy
voltage
module
double
charging
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Expired - Fee Related
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CN201420102936.0U
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Chinese (zh)
Inventor
温嘉炜
徐达
江俊军
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN201420102936.0U priority Critical patent/CN203761094U/en
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Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a solar-energy wireless charger which is a lithium battery charger capable of using solar energy and realizing wireless power transmission. The charger comprises an electric energy emission pedestal and a charging pedestal. An internal portion is formed by a power supply management module, an electric energy emission module, an electric energy receiving module, an electric energy receiving rectification voltage stabilization module and a lithium battery charging management module. When the charger is closed, electric energy obtained through photovoltaic conversion of a solar battery is stored in a storage battery. When the charger is opened, the storage battery is connected to the power supply management module through a double-pole-double-throw switch so as to provide power stably to the emission module; through high frequency signal transmission, the energy is transmitted to the electric energy receiving module through an inductive coupling mode; effective charging of the lithium battery is realized under the control of the charging management module. According to the charger of the utility model, wireless power transmission of the inductive coupling mode is used; the battery is connected to the power supply without a data line and usage is convenient; effective control to a storage battery charging process is performed so that situations of overcharge and inverted charge can be prevented.

Description

Solar energy radio charger
Technical field
The utility model relates to inductive coupled wireless power transmission field, relates in particular to the wireless charging device that utilizes solar energy to be lithium battery power supply.
Background technology
Universal and the development of mobile device has proposed more and more higher requirement to the convenience of charger, and meanwhile, the green in mobile device process of consumption also has more and more important meaning for the energy security of today.
Conventional mobile phone charger, because of the difference of mobile device model, has certain limitation to the model of charger, interface, therefore property easy to use is had a greatly reduced quality.And portable power source is too because the existence of data wire has brought certain trouble.On the other hand, the mobility of portable power source has proposed requirement to the emergencing action of the energy, if lack out of doors in the situation of electric main supply, the makeup function of sun-generated electric power shows larger attraction sometimes.
Utility model content
The utility model object is to overcome the problem that current conventional mobile phone lithium battery charger exists, a kind of solar energy radio charger has been proposed, using solar energy as energy resource supply, by high-frequency signal, carry out delivery of electrical energy, for lithium battery carries out efficiently, wireless charging easily.
The utility model solves the technical scheme that its technical problem adopts:
A kind of solar energy radio charger, comprise electric energy transmitting pedestal and charging pedestal, wherein electric energy transmitting pedestal comprises power management module and electric energy transmitter module two parts, and charging pedestal comprises that electric energy receives rectifying and voltage-stabilizing module and lithium cell charging administration module two parts;
Described power management module comprises solar panel, storage battery, double-point double-throw switch, voltage-stabilizing output circuit, and voltage-stabilizing output circuit is exported two step voltages; The positive and negative output interface of solar panel is connected to a side of double-point double-throw switch, the positive and negative terminal input interface of voltage stabilizing power supplying circuit is connected to the opposite side of double-point double-throw switch, and two of the centres interface of described double-point double-throw switch is connected to the positive and negative polarities of storage battery;
Electric energy transmitter module comprises high frequency square wave circuit for generating, amplifier buffering, power amplifier part, transmitting coil and former limit building-out capacitor, after described transmitting coil and the building-out capacitor parallel connection of former limit, be connected to the circuit of power amplifier part, the one-level power voltage supply of being exported by voltage-stabilizing output circuit; After the output of high frequency square wave circuit for generating cushions by amplifier, be connected with power amplifier, the secondary voltage of being exported by voltage-stabilizing output circuit is powered;
Electric energy receives rectifying and voltage-stabilizing module and comprises receiving coil, secondary building-out capacitor, regulator rectifier circuit, the received coil of electric energy in the transmitting coil of described electric energy transmitter module receives, and described regulator rectifier circuit mainly comprises rectifier bridge, filter capacitor and adjustable voltage-regulating ic chip; After receiving coil and the parallel connection of secondary building-out capacitor, through rectifier bridge, filter capacitor and adjustable voltage-regulating ic chip, be connected to lithium cell charging administration module, lithium cell charging administration module is controlled by lithium cell charging managing chip is unified.
Lithium cell charging administration module comprises red led and green indicating lamp, and indication is being charged and charging completes two states respectively, and when voltage falls, lithium cell charging managing chip enters park mode, prevents that lithium battery from filling.
Compared with prior art, its beneficial effect is the utility model:
1, adopt solar energy as the energy, environmental protection more;
2, the wireless power transmission that adopts inductive coupling type, battery is connected with power supply without data wire, uses convenient;
3, battery charging process is control effectively, can prevent the situation that overcharges and fill.
Accompanying drawing explanation
Fig. 1 is the structural representation of solar energy radio charger;
Fig. 2 is the module connection layout of solar energy radio charger;
Fig. 3 is the circuit diagram of the power management module of solar energy radio charger;
Fig. 4 is the circuit diagram of the electric energy transmitter module of solar energy radio charger;
Fig. 5 is the circuit diagram that the electric energy of solar energy radio charger receives rectifying and voltage-stabilizing module;
Fig. 6 is the circuit diagram of the lithium cell charging administration module of solar energy radio charger;
In figure: 1. electric energy is launched pedestal; 2. solar panel; 3. double-point double-throw switch; Charging induction zone; 5. pedestal charges; 6. lithium battery groove; 7. red led; 8. green indicating lamp; 9. storage battery; 10. transmitting coil; 11. former limit building-out capacitors; 12. receiving coils; 13. secondary building-out capacitors; 14. rectifier bridges; 15. adjustable voltage-regulating ic chips; 16. lithium cell charging managing chips.
Embodiment
As shown in Figure 1, the present invention is comprised of electric energy transmitting pedestal 1 and charging pedestal 5.As shown in Figure 2, the present invention comprises power management module, electric energy transmitter module, electric energy reception rectifying and voltage-stabilizing module, this four major part of lithium cell charging administration module altogether.Wherein electric energy transmitting pedestal 1 comprises power management module and electric energy transmitter module two parts, and charging pedestal 5 comprises electric energy and receives rectifying and voltage-stabilizing module and lithium cell charging administration module two parts.Wherein:
Power management module comprises solar panel 2, storage battery 9, double-point double-throw switch 3, voltage-stabilizing output circuit.Solar panel 2 carries out opto-electronic conversion, positive-negative output end mouth is connected with two interfaces of double-point double-throw switch 3 one sides respectively, the positive-negative input end mouth of controlling circuit of voltage regulation is connected with two interfaces of double-point double-throw switch 3 opposite sides, and in the middle of double-point double-throw switch 3, two interfaces are connected with the positive and negative polarities of storage battery 9.In the situation that closing this wireless charger, double-pole is thrown to solar panel 2 one sides, and storage battery 9 is connected with solar panel 2, storage battery 9 chargings.Open this wireless charger, double-pole throw to voltage stabilizing power supplying circuit one side, storage battery 9 provides electric energy for voltage stabilizing power supplying circuit.From the voltage process voltage stabilizing chip LM7812 of storage battery 9 outputs, a step voltage of stable output, after capacitor filtering, then by voltage stabilizing chip LM7805, the secondary voltage of stable output.This two step voltage provides electric energy for rear class transmitter module.
Under the power supply of secondary voltage, in transmitter module, NE555 chip and resistance capacitance form RC oscillating circuit, produce the constant high frequency square wave of duty ratio.Square wave, after high frequency amplifier chip OPA604 buffering, drives field effect metal-oxide-semiconductor, and controls conducting and the shutoff of this pipe.Transmitting coil 10 is the loop coils that turned to by enamelled wire, in parallel with former limit building-out capacitor 11, and is connected with one-level supply power voltage.In transmitting coil 10, form high-frequency emission pulse signal.
Electric energy receives rectifying and voltage-stabilizing modular circuit as shown in Figure 5, comprises receiving coil 12, secondary building-out capacitor 13, regulator rectifier circuit.Receiving coil 12 is also the loop coil being turned to by enamelled wire, and in parallel with secondary building-out capacitor 13.Resonance frequency in receiving coil 12 is consistent with the resonance frequency of transmitting coil 10.Electric energy is transferred in receiving coil 12 by high-frequency signal, by regulator rectifier circuit, converts galvanic current to.Rectifier bridge 14 is comprised of four fast recovery diodes, can realize efficiently AC rectification is direct current, after filter capacitor effect, the charging voltage of stable output after adjustable voltage-regulating ic chip 15 LM317, for rear class lithium cell charging administration module provides electric energy.
Lithium battery charging management circuit as shown in Figure 6.Under the control of lithium cell charging managing chip 16 bq2057, respectively lithium battery is carried out to precharge, constant current charge, constant voltage charge, in this stage, battery electric quantity unsaturation, red led 7 will be lighted.Charging completes, and green indicating lamp 8 is lit.When if input voltage shakiness is fallen, lithium cell charging managing chip 16 will enter resting state, effectively prevent the situation that lithium battery fills.
During use, lithium battery is positioned over to charging pedestal 5, lithium battery is connected with charge management module.Charging pedestal 5 is placed and charged on induction zone 4, open wireless charger double-point double-throw switch 3, in power management module, storage battery 9 is connected with voltage stabilizing power supplying circuit, electric energy starts transmission from storage battery 9, through transmitter module transmitting coil 10, form the high-frequency ac signal of telecommunication, by charging induction zone 4, be sent in the receiving coil 12 of charging pedestal 5, after rectifying and voltage-stabilizing module, deliver to charge management module again, thereby under the control of lithium cell charging managing chip 16, realize the effective charging to lithium battery.

Claims (2)

1. a solar energy radio charger, it is characterized in that: comprise electric energy transmitting pedestal and charging pedestal, wherein electric energy transmitting pedestal comprises power management module and electric energy transmitter module two parts, and charging pedestal comprises that electric energy receives rectifying and voltage-stabilizing module and lithium cell charging administration module two parts;
Described power management module comprises solar panel, storage battery, double-point double-throw switch, voltage-stabilizing output circuit, and voltage-stabilizing output circuit is exported two step voltages; The positive and negative output interface of solar panel is connected to a side of double-point double-throw switch, the positive and negative terminal input interface of voltage stabilizing power supplying circuit is connected to the opposite side of double-point double-throw switch, and two of the centres interface of described double-point double-throw switch is connected to the positive and negative polarities of storage battery;
Electric energy transmitter module comprises high frequency square wave circuit for generating, amplifier buffering, power amplifier part, transmitting coil and former limit building-out capacitor, after described transmitting coil and the building-out capacitor parallel connection of former limit, be connected to the circuit of power amplifier part, the one-level power voltage supply of being exported by voltage-stabilizing output circuit; After the output of high frequency square wave circuit for generating cushions by amplifier, be connected with power amplifier, the secondary voltage of being exported by voltage-stabilizing output circuit is powered;
Electric energy receives rectifying and voltage-stabilizing module and comprises receiving coil, secondary building-out capacitor, regulator rectifier circuit, the received coil of electric energy in the transmitting coil of described electric energy transmitter module receives, and described regulator rectifier circuit mainly comprises rectifier bridge, filter capacitor and adjustable voltage-regulating ic chip; After receiving coil and the parallel connection of secondary building-out capacitor, through rectifier bridge, filter capacitor and adjustable voltage-regulating ic chip, be connected to lithium cell charging administration module, lithium cell charging administration module is controlled by lithium cell charging managing chip is unified.
2. solar energy radio charger according to claim 1, it is characterized in that: lithium cell charging administration module comprises red led and green indicating lamp, indication is being charged and charging completes two states respectively, when voltage falls, lithium cell charging managing chip enters park mode, prevents that lithium battery from filling.
CN201420102936.0U 2014-03-09 2014-03-09 Solar-energy wireless charger Expired - Fee Related CN203761094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420102936.0U CN203761094U (en) 2014-03-09 2014-03-09 Solar-energy wireless charger

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026343A (en) * 2016-06-30 2016-10-12 珠海德光源集团有限公司 Solar wireless charging device
CN106042944A (en) * 2016-07-16 2016-10-26 分宜绿源车辆销售有限公司 Solar pure electric cruiser
CN106080219A (en) * 2016-07-27 2016-11-09 分宜绿源车辆销售有限公司 Lithium cell electric cruiser
CN106451809A (en) * 2016-11-24 2017-02-22 上海电机学院 Portable wireless charging film with protective circuit
CN106972612A (en) * 2017-04-28 2017-07-21 广东技术师范学院 A kind of electric power-feeding structure for improving four-axle aircraft cruising time
CN108540050A (en) * 2017-03-06 2018-09-14 中国农业大学 Wireless charging device for electric vehicle based on photoelectric coupling and electric vehicle
CN108767993A (en) * 2018-08-22 2018-11-06 深圳市和宏实业股份有限公司 A kind of blanket type wireless charger
CN113904402A (en) * 2021-05-31 2022-01-07 西北工业大学 Battery charging and discharging circuit with voltage stabilizing module based on relay

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106026343A (en) * 2016-06-30 2016-10-12 珠海德光源集团有限公司 Solar wireless charging device
CN106042944A (en) * 2016-07-16 2016-10-26 分宜绿源车辆销售有限公司 Solar pure electric cruiser
CN106080219A (en) * 2016-07-27 2016-11-09 分宜绿源车辆销售有限公司 Lithium cell electric cruiser
CN106451809A (en) * 2016-11-24 2017-02-22 上海电机学院 Portable wireless charging film with protective circuit
CN108540050A (en) * 2017-03-06 2018-09-14 中国农业大学 Wireless charging device for electric vehicle based on photoelectric coupling and electric vehicle
CN106972612A (en) * 2017-04-28 2017-07-21 广东技术师范学院 A kind of electric power-feeding structure for improving four-axle aircraft cruising time
CN108767993A (en) * 2018-08-22 2018-11-06 深圳市和宏实业股份有限公司 A kind of blanket type wireless charger
CN113904402A (en) * 2021-05-31 2022-01-07 西北工业大学 Battery charging and discharging circuit with voltage stabilizing module based on relay
CN113904402B (en) * 2021-05-31 2024-03-29 西北工业大学 Battery charging and discharging circuit with voltage stabilizing module based on relay

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140806

Termination date: 20150309

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