CN201877870U - Portable wireless charging system - Google Patents
Portable wireless charging system Download PDFInfo
- Publication number
- CN201877870U CN201877870U CN2010205949443U CN201020594944U CN201877870U CN 201877870 U CN201877870 U CN 201877870U CN 2010205949443 U CN2010205949443 U CN 2010205949443U CN 201020594944 U CN201020594944 U CN 201020594944U CN 201877870 U CN201877870 U CN 201877870U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- coil
- wireless charging
- charging system
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to charging equipment, in particular to a wireless charging system, which consists of two parts: an electric energy sending end and an electric energy receiving end, wherein the electric energy receiving end is not in contact with the electric energy sending end, the electric energy sending end comprises an emitting coil, and the electric energy receiving end comprises a receiving coil, wherein the electric energy sending end comprises an information energy control module and an energy sending module, the information energy control module comprises a host machine, a microcontroller and a radio frequency identification (RFID) assembly, the energy sending module comprises a driving circuit and an emitting coil, the microcontroller is respectively connected with the host machine, the driving circuit and the RFID assembly, the driving circuit is connected with the emitting coil, the output end of the receiving coil is connected with an oscillation circuit, and an RFID label corresponding to the electric energy sending end is pasted on the electric energy receiving end. The portable wireless charging system has advantages of portability, low cost, environment protection and better safety performance.
Description
Technical field
The utility model relates to a kind of charging device, especially a kind of wireless charging system.
Background technology
The wireless charging technology can satisfy people's charging demand easy to use to a great extent whenever and wherever possible.It is extensive that the application of wireless charging Study on Technology relates to the field, it is bigger that through-put power differs, little of tens milliwatts that are used for biological implantation, tens watts of power of mini-plant, greatly to the last kw of power of electric automobile or kinematic robot and the last megawatts of power of magnetic suspension train application.The main non-contact electric energy transmission system that has on the biomedicine, the compact electric apparatus such as electric shaver, electric toothbrush used.Along with the generally use of mobile phone, this technology of non-contact power just is being studied the non-contact charge that is used for battery of mobile phone.But, the wireless charging technology also can impel electronic product to change, traditional power management part will produce certain variation, and require also more strict to the power consumption of electronic product, because the energy by wireless transmission is still limited after all, the power of the non-contact electric energy transmission of using at present is less.
The wireless charging technology drops into practical application in equipment such as cordless telephone.At present, towards the contact-less charger of mobile phone, just at active development 2W-3W level power supply technique.The problem that mobile phone contact-less charger development company is occurring when just being devoted to solve the product commercialization.Wherein, the particularly important is raise the efficiency, the setting of ID authentication mechanism, position alignment etc. when reducing electromagnetic noise, charging.In order to satisfy requirements such as rules, also pay particular attention to the problem of aspects such as fail safe.And must be the same with existing common charger easy to be easy-to-use, can not prolong the charging interval because of contactless charging.
The RFID REID is a kind of automatic identification technology that begins to rise the nineties in 20th century, and it is to utilize radiofrequency signal to close the technology that the information that realizes contactless information transmission and pass through to be transmitted reaches identifying purpose by the space misfortune.With wireless charging system and the combination of RFID technology, realize that system safety, controlled electric energy transmitting have great importance.
In sum, though the wireless charging technology realizes to some extent that in some certain products this technology is ripe not enough, is not used widely.
The utility model content
The purpose of this utility model is to have proposed a kind of portable mobile wireless charging system.
The utility model is to adopt following technical scheme to realize: a kind of portable mobile wireless charging system, by the electric energy transmitting terminal be non-contacting electric energy receiving terminal two parts with the electric energy transmitting terminal and form, the electric energy transmitting terminal comprises transmitting coil, the electric energy receiving terminal comprises receiving coil, wherein, the electric energy transmitting terminal comprises information energy control module and energy sending module, the information energy control module comprises host computer, microcontroller and RFID assembly, the energy sending module comprises drive circuit and transmitting coil, microcontroller is respectively at host computer, drive circuit and RFID assembly connect, drive circuit is connected with transmitting coil, the output of receiving coil is connected with oscillating circuit, and the electric energy receiving terminal posts and the corresponding RFID label of electric energy transmitting terminal.
Described transmitting coil and receiving coil all adopt the plane hollow coil.
Interconnect by the UART interface between described host computer and the microcontroller,
Described oscillating circuit comprises rectification circuit and smoothing circuit, and described smoothing circuit can adopt capacitor filter.
Described electric energy receiving terminal comprises the DC-DC voltage boosting device, and the DC-DC voltage boosting device is connected with oscillating circuit, and the DC-DC voltage boosting device can adopt the DC-DC converter, to realize the high efficiency charging technique.
The beneficial effects of the utility model are: the utility model utilizes the principle of near-field energy coupling, and its power transfer adopts coreless coil, can reduce equipment volume greatly, has realized the light, portable of charging system; Its contactless charging modes is esy to use, safe and reliable, satisfies special use occasion, as waterproof and dustproof, explosion-proof demand; In addition, realized that by the RFID assembly ID of charging device authenticates, improved the fail safe of whole system.To sum up, the utility model good portability, cost is low, the protection environment, fail safe is better.
Description of drawings
Fig. 1 is the connection diagram of electric energy transmitting terminal in the utility model;
Fig. 2 is the microcontroller circuit figure of electric energy transmitting terminal;
Fig. 3 is the circuit diagram of electric energy transmitting terminal drive circuit;
Fig. 4 is the connection diagram of electric energy receiving terminal;
Fig. 5 is the circuit diagram of electric energy receiving terminal.
Embodiment
As shown in Figure 1, this wireless charging system is formed by the electric energy transmitting terminal with the non-contacting electric energy receiving terminal of electric energy transmitting terminal two parts.The electric energy transmitting terminal comprises information energy control module and energy sending module, and the information energy control module is mainly controlled the energy sending module, and the state of detected energy sending module, guarantees that power transfer is normal.The information energy control module comprises host computer, microcontroller and RFID assembly, and the energy sending module comprises coil driver and transmitting coil.Interconnect by the UART interface between host computer and the microcontroller, microcontroller is connected with drive circuit, the open and close that microcontroller can control Driver Circuit, and timing effect.The RFID assembly is connected with microcontroller, realizes making this system realize intellectuality to a certain extent to needing the identification of charging device, has improved the fail safe of system's charging.
The electric energy transmitting terminal is a core with the microcontroller, and control Driver Circuit is started working, and realizes the transmission of electric energy.Microcontroller adopts MC68HC908QB4, can not only produce the required frequency of oscillation of coil driver, and the while also can control the RFID assembly and the electric energy receiving terminal carries out information interaction.Microcontroller by reading the RFID information that needs in the charging device, judges whether it is legal charging device on the one hand; On the other hand, the control charging circuit is opened when being identified as legitimate device, realizes the connection of charging device.Microcontroller circuit as shown in Figure 2, its interface according to correspondence connects.The drive circuit of electric energy transmitting terminal as shown in Figure 3, this circuit makes wireless charging system can carry out power transfer.
The electric energy receiving terminal of wireless charging system is corresponding to portable terminal.As shown in Figure 4 and Figure 5, the electric energy receiving terminal comprises receiving coil and oscillating circuit, and wherein oscillating circuit comprises rectification circuit and smoothing circuit such as RC filter circuit, and the output of receiving coil is connected with oscillating circuit.Receiving coil receives the energy that the electric energy transmitting terminal transmits by the electromagnetic induction with transmitting coil, because receiving coil is very small and exquisite, therefore is integrated into easily in the terminal equipment to be charged.In the charging process, receiving coil obtains alternating current, then by bridge rectifier loop, RC filter circuit, obtain stable direct current, with the direct current that obtains is the DC-DC converter by a DC-DC voltage boosting device again, to realize the high efficiency charging technique, be connected to the battery-end of portable terminal at last.Simultaneously, post and the corresponding RFID label of electric energy transmitting terminal, make at terminal equipment to be charged when the charger sphere of action at described electric energy receiving terminal, can be by authentication, charging is finished in the connection of the charging circuit of realization smoothly.The electric energy receiving terminal also comprises two functional modules, i.e. information energy control module and energy receiver module, and the energy receiver module mainly comprises receiving coil, the information energy control module can be controlled the energy receiver module, ensures the safety of whole charging process.
The tandem circuit of electric energy receiving terminal as shown in Figure 5.In actual charging process, carry out electromagnetic coupling between transmitting coil and receiving coil and close, obtain alternating current, through a bridge rectifier, connect a RC filter circuit then, the direct voltage of pulsing is become level and smooth direct voltage.In order to improve charge efficiency, add a DC-DC converter, connect the battery of portable terminal at last, it is charged.
This wireless charging system has utilized the near-field energy coupling principle, during system works, at first alternating current that the transmitting terminal power supply is provided or direct current are converted to high frequency ac signal by controlled resonant converter or high frequency modulation module, drive transmitting coil then, make transmitting coil produce all very little but the electromagnetic field that high frequency changes in magnetic field around in the spatial dimension of certain distance.Receiving coil is arranged in this electromagnetic field, and the high frequency of transmitting coil magnetic flux changes the high-frequency induction electromotive force that produces certain amplitude in receiving coil.By bridge rectifier and the capacitor filter that is added in the receiving coil end, just can be for rechargeable battery provide direct current supply output, thus realized the wireless transmission of electric energy.In addition, realized that by the RFID assembly ID of charging device authenticates, improved the fail safe of whole system.
Claims (5)
1. portable mobile wireless charging system, by the electric energy transmitting terminal be non-contacting electric energy receiving terminal two parts with the electric energy transmitting terminal and form, wherein the electric energy transmitting terminal comprises transmitting coil, the electric energy receiving terminal comprises receiving coil, it is characterized in that: the electric energy transmitting terminal comprises information energy control module and energy sending module, the information energy control module comprises host computer, microcontroller and RFID assembly, the energy sending module comprises drive circuit and transmitting coil, microcontroller is respectively at host computer, drive circuit and RFID assembly connect, drive circuit is connected with transmitting coil, the output of receiving coil is connected with oscillating circuit, and the electric energy receiving terminal posts and the corresponding RFID label of electric energy transmitting terminal.
2. portable mobile wireless charging system according to claim 1 is characterized in that: described transmitting coil and receiving coil all adopt hollow coil.
3. portable mobile wireless charging system according to claim 1 is characterized in that: interconnects by the UART interface between described host computer and the microcontroller,
4. portable mobile wireless charging system according to claim 1 is characterized in that: described oscillating circuit comprises rectification circuit and smoothing circuit, and described smoothing circuit is a capacitor filter.
5. portable mobile wireless charging system according to claim 1 is characterized in that: described electric energy receiving terminal comprises the DC-DC voltage boosting device, and the DC-DC voltage boosting device is connected with oscillating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205949443U CN201877870U (en) | 2010-11-05 | 2010-11-05 | Portable wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205949443U CN201877870U (en) | 2010-11-05 | 2010-11-05 | Portable wireless charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877870U true CN201877870U (en) | 2011-06-22 |
Family
ID=44165779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205949443U Expired - Fee Related CN201877870U (en) | 2010-11-05 | 2010-11-05 | Portable wireless charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877870U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437601A (en) * | 2011-10-21 | 2012-05-02 | 中国科学院苏州纳米技术与纳米仿生研究所 | Autonomous charging system of cloud robot and method thereof |
| CN104467132A (en) * | 2014-12-22 | 2015-03-25 | 芜湖市汽车产业技术研究院有限公司 | Wireless charging system with billing function |
| CN104917263A (en) * | 2014-03-10 | 2015-09-16 | 陈业军 | Ground-emitting device for wireless charging |
| CN112740643A (en) * | 2018-09-17 | 2021-04-30 | 华为技术有限公司 | Waterproof mobile intelligent terminal, charger and photo-charging control method |
-
2010
- 2010-11-05 CN CN2010205949443U patent/CN201877870U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437601A (en) * | 2011-10-21 | 2012-05-02 | 中国科学院苏州纳米技术与纳米仿生研究所 | Autonomous charging system of cloud robot and method thereof |
| CN102437601B (en) * | 2011-10-21 | 2013-12-18 | 中国科学院苏州纳米技术与纳米仿生研究所 | Autonomous charging system of cloud robot and method thereof |
| CN104917263A (en) * | 2014-03-10 | 2015-09-16 | 陈业军 | Ground-emitting device for wireless charging |
| CN104467132A (en) * | 2014-12-22 | 2015-03-25 | 芜湖市汽车产业技术研究院有限公司 | Wireless charging system with billing function |
| CN112740643A (en) * | 2018-09-17 | 2021-04-30 | 华为技术有限公司 | Waterproof mobile intelligent terminal, charger and photo-charging control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204190475U (en) | A kind of wireless charging reflector and wireless charging device | |
| CN205195374U (en) | Electric clipper that charges that inductive coupling high efficiency is wireless | |
| CN203218926U (en) | Portable wireless charge power source | |
| CN204423325U (en) | A kind of wireless mouse | |
| CN201877870U (en) | Portable wireless charging system | |
| CN204009782U (en) | A kind of mouse with wireless charging receiver | |
| CN105846502A (en) | Wireless charging ultrasonic cleaner | |
| CN201576296U (en) | Active solar RFID tag | |
| CN103368242A (en) | Wireless charging receiving device with USB (Universal Serial Bus) interfaces of electronic equipment | |
| CN107370252A (en) | Wireless mutually fill is put and wireless charging device | |
| CN206283296U (en) | Wireless charging circuit and device | |
| CN102195367A (en) | Wireless power supply device | |
| CN207320882U (en) | Wireless charging system, emitter and reception device | |
| CN203456920U (en) | Card type electronic equipment and electronic system | |
| CN206727742U (en) | A kind of wireless charging system based on magnetic coupling resonance transmission | |
| CN203180563U (en) | Portable wireless charger | |
| CN203522344U (en) | Handset system capable of wirelessly supplying power outwards | |
| CN204044764U (en) | A kind of charge wireless mouse | |
| CN204009780U (en) | The wireless power taking wireless mouse of a kind of USB mouth | |
| CN207264476U (en) | Intelligent lock circuit and smart lock | |
| CN203278406U (en) | Magnetic resonance wireless charging device | |
| CN205595905U (en) | Difunctional adjustable wireless power transmission device | |
| CN205070619U (en) | Passive intelligent IC -card that can wirelessly charge | |
| CN204258418U (en) | The dual-purpose wireless charger of a kind of photoelectric intelligent | |
| CN102651568A (en) | Wireless charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20171105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |