CN103280901A - Mobile device power supply system based on wireless electricity transmission - Google Patents
Mobile device power supply system based on wireless electricity transmission Download PDFInfo
- Publication number
- CN103280901A CN103280901A CN2013102143541A CN201310214354A CN103280901A CN 103280901 A CN103280901 A CN 103280901A CN 2013102143541 A CN2013102143541 A CN 2013102143541A CN 201310214354 A CN201310214354 A CN 201310214354A CN 103280901 A CN103280901 A CN 103280901A
- Authority
- CN
- China
- Prior art keywords
- coil
- power supply
- receiving
- receiving coil
- system based
- 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.)
- Pending
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a mobile device power supply system based on wireless electricity transmission. The mobile device power supply system is composed of a power source, a transmitting coil, a receiving coil, a load coil and a rectification and voltage stabilizing system in a sequentially connected mode. The transmitting coil and the receiving coil are of the same spiral structure and are the same in radius, material and number of windings. The load coil and the receiving coil are coaxially arranged. A mode with an uncontrollable bridge rectifier and a DC/DC converter combined is adopted in the rectification and voltage stabilizing system. An energy transmitting device of the system is formed by the power source and the transmitting coil. An energy receiving device is formed by the receiving coil, the load coil and the rectification and voltage stabilizing system. Energy is continuously transmitted out by the transmitting device. The receiving device receives the energy and supplies electricity to mobile devices. According to the mobile device power supply system based on the wireless electricity transmission, the electricity can be efficiently and stably supplied to the portable mobile devices, the problems that an existing inductive type wireless charging system is short in distance and low in power and a charged device must be flush with an electricity transmitting device are solved, and adjustability and controllability of the transmission distance, the transmission power, the transmission voltage and the resonant frequency are achieved.
Description
Technical field
The present invention relates to a kind of power transfer, specifically is a kind of mobile equipment power supply system based on wireless power transmission, belongs to electromagnetism and electric and electronic technical field.
Background technology
Various portable mobile apparatus (as mobile phone, PAD, game machine, the small-sized mobile TV etc.) supply power mode of family expenses mainly relies on battery to add the charger pattern at present, because the capacity limitation problem of battery, mobile device need regularly charge or directly carry out continuous firing by power supply adaptor.Charger or power supply adaptor all need be connected with mobile device with socket by cable, cause many inconvenience to the user, in recent years along with the development of wireless power transmission technology, the wireless power supply of mobile device has once appearred on the market, the most of electromagnetic induction principle that adopts of these devices carries out the transmission of electric energy, though replaced cable to a certain extent, realized the wireless power of mobile device, but because its transmission range only limits to several centimetres, shortcomings such as current-collecting device must align with electric energy transmission device, and through-put power is less not on market large tracts of land promote the use of.
Summary of the invention
Technical problem to be solved by this invention provides a kind of mobile equipment power supply system based on wireless power transmission, and this system is primarily aimed at charging and the continued power needs of mobile device.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of mobile equipment power supply system based on wireless power transmission, it is by power supply, transmitting coil, receiving coil, loading coil and rectifying and voltage-stabilizing system connect to form successively, described transmitting coil has identical helical structure with receiving coil, radius, material and the number of turn, described loading coil is coaxial with receiving coil, described rectifying and voltage-stabilizing system adopts not controlled bridge-type rectification and DC/DC converter groups syntype, described power supply and transmitting coil are formed the energy emitter of system, receiving coil, loading coil, the rectifying and voltage-stabilizing system forms the energy receiving system, by being operated under the identical resonance frequency, emitter constantly spreads out of energy, receiving system received energy and to carry out voltage transformation be mobile power supply equipment.
For realizing the optimal control scheme of system under different transmission ranges and the through-put power, described power supply adopts the radio-frequency power supply of power and frequency adjustable.
Described transmitting coil, receiving coil and loading coil adopt helical structure, and wherein loading coil is coaxial with the receiving coil strictness, the axial dipole field of himself radius of transmitting coil and the permission of receiving coil maximum.
Described transmitting coil and receiving coil adopt series connection-series capacitor compensation structure, and loading coil and receiving coil adopt isolation close coupling mode to carry out energetic interaction.
Described DC/DC converter using anti exciting converter structure, input voltage is than more than the 2:1.
Four silicon carbide diodes are adopted in described not controlled bridge-type rectification, and maximum operating frequency can reach several million.
Adopt the voltage stabilizing of two-stage electrochemical capacitor to be connected between described bridge rectifier and the DC/DC converter.
Electric power system of the present invention is utilized the magnetic coupling resonance principle, can efficient stable provide electric energy for portable mobile apparatus, solved existing induction type wireless charging system apart from weak point, power is little and current-collecting device must with shortcomings such as electric energy transmission device aligns, have a good application prospect.The maximum 35cm of electric power system transmission range of the present invention, maximum power 200W can realize the periodic charge of mobile device and the demand of continuous powered operation, and can realize the adjustable of transmission range, through-put power, output voltage and resonance frequency.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of electric power system of the present invention.
Fig. 2 is the equivalent circuit diagram of electric power system of the present invention.
Fig. 3 is rectifying and voltage-stabilizing system construction drawing in the electric power system of the present invention.
Embodiment
A kind of mobile equipment power supply system based on wireless power transmission, connected to form successively by power supply 11, transmitting coil 12, receiving coil 14, loading coil 16 and rectifying and voltage-stabilizing system 17 as shown in Figure 1, wherein power supply 11 and transmitting coil 12 are formed the energy emitter of system, receiving coil 14, loading coil 16, rectifying and voltage-stabilizing system 17 form the energy receiving system, by being operated under the identical resonance frequency, emitter constantly spreads out of energy, receiving system received energy and to carry out voltage transformation be mobile device 18 power supply.
Specifically, power supply 11 adopts the radio-frequency power supply of power and frequency adjustable, realizes the optimal control scheme of system under different transmission ranges and the through-put power.Transmitting coil 12 has identical helical structure, radius, material and the number of turn with receiving coil 14, guarantees the consistency of its inductance, capacitance parameter, and loading coil 16 is coaxial with receiving coil 14, and the number of turn designs accordingly according to the needs of back mobile device 18.
Rectifying and voltage-stabilizing system 17 adopts not controlled bridge-type rectification 171 and DC/DC converter 172 integrated modes, requires to design according to the output area of front end system voltage and power, the input parameter of mobile device 18.
The equivalent electric circuit of wireless power transmission model of the present invention as shown in Figure 2, the emission power equivalence is the cascaded structure of an ideal voltage source 21 and equivalent source internal resistance 22, transmitting coil 12 equivalences are the series connection of an ideal inductance 23 and coil internal resistance 25, form the energy radiating circuit by emission power, transmitting coil and building-out capacitor 24.Receiving coil and loading coil also carry out corresponding equivalence, rectifying and voltage-stabilizing system and mobile device are simulated with the load 211 of an equivalence, as shown in Figure 2, transmitting coil adopts with receiving coil and connects-the series capacitor compensation structure, and loading coil and receiving coil adopt isolation close coupling mode to carry out energetic interaction.
Transmitting coil 12 of the present invention, receiving coil 14 and loading coil 16 adopt helical structure, wherein loading coil 16 is strict coaxial with receiving coil 14, transmitting coil 12 and receiving coil 14 be maximum to allow the axial dipole field of himself radius, still can satisfy the operate as normal of system in the case.
Radio energy transmission system of the present invention, the maximum 35cm of transmission range, maximum power 200W can realize the periodic charge of mobile device and the demand of continuous powered operation, can realize the adjustable of transmission range, through-put power, output voltage and resonance frequency.
As shown in Figure 3, rectifying and voltage-stabilizing of the present invention system 17 adopts not controlled bridge-type rectification 171 to add DC/DC converter 172 integrated modes, does not wherein adopt 321,322 voltage stabilizings of two-stage electrochemical capacitor to be connected between controlled bridge-type rectification 171 and the DC/DC converter 172.DC/DC converter 172 of the present invention adopts the anti exciting converter structure, and input voltage by the control of output voltage feedback to switching tube 332 duty cycle of switching, cooperates the stable power-supplying of the power conversion realization mobile device 18 of transformer 331 than more than the 2:1.Four silicon carbide diodes are adopted in described not controlled bridge-type rectification 171, and maximum operating frequency can reach several million.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (7)
1. mobile equipment power supply system based on wireless power transmission, it is characterized in that by power supply, transmitting coil, receiving coil, loading coil and rectifying and voltage-stabilizing system connect to form successively, described transmitting coil has identical helical structure with receiving coil, radius, material and the number of turn, described loading coil is coaxial with receiving coil, described rectifying and voltage-stabilizing system adopts not controlled bridge-type rectification and DC/DC converter groups syntype, described power supply and transmitting coil are formed the energy emitter of system, receiving coil, loading coil, the rectifying and voltage-stabilizing system forms the energy receiving system, by being operated under the identical resonance frequency, emitter constantly spreads out of energy, receiving system received energy and to carry out voltage transformation be mobile power supply equipment.
2. a kind of mobile equipment power supply system based on wireless power transmission according to claim 1 is characterized in that: the radio-frequency power supply of described power supply employing power and frequency adjustable.
3. a kind of mobile equipment power supply system based on wireless power transmission according to claim 1, it is characterized in that: described transmitting coil, receiving coil and loading coil adopt helical structure, wherein loading coil is coaxial with the receiving coil strictness, and transmitting coil and receiving coil be maximum to allow the axial dipole field of himself radius.
4. according to the described a kind of mobile equipment power supply system based on wireless power transmission of claim 1, it is characterized in that: described transmitting coil and receiving coil adopt series connection-series capacitor compensation structure, and loading coil and receiving coil adopt isolation close coupling mode to carry out energetic interaction.
5. according to the described a kind of mobile equipment power supply system based on wireless power transmission of claim 1, it is characterized in that: described DC/DC converter using anti exciting converter structure.
6. according to the described a kind of mobile equipment power supply system based on wireless power transmission of claim 1, it is characterized in that: four silicon carbide diodes are adopted in described not controlled bridge-type rectification.
7. according to the described a kind of mobile equipment power supply system based on wireless power transmission of claim 1, it is characterized in that: adopt the voltage stabilizing of two-stage electrochemical capacitor to be connected between described bridge rectifier and the DC/DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102143541A CN103280901A (en) | 2013-05-31 | 2013-05-31 | Mobile device power supply system based on wireless electricity transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102143541A CN103280901A (en) | 2013-05-31 | 2013-05-31 | Mobile device power supply system based on wireless electricity transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103280901A true CN103280901A (en) | 2013-09-04 |
Family
ID=49063377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102143541A Pending CN103280901A (en) | 2013-05-31 | 2013-05-31 | Mobile device power supply system based on wireless electricity transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103280901A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812229A (en) * | 2013-11-28 | 2014-05-21 | 华南理工大学 | Maximum power control method for three-resonance-coil wireless electric energy transmission system |
| CN103928961A (en) * | 2014-04-16 | 2014-07-16 | 国家电网公司 | Electric vehicle wireless charging system |
| CN106374630A (en) * | 2016-11-03 | 2017-02-01 | 上海点派企业形象策划有限公司 | Low-voltage wireless power supply system |
| CN106505748A (en) * | 2016-12-22 | 2017-03-15 | 武汉大学 | The reverse wireless power supply system of unmanned aerial vehicle onboard energy storage and method of supplying power to |
| WO2017041496A1 (en) * | 2015-09-08 | 2017-03-16 | 王清斌 | Passive nfc communication interface having independent energy receiving antenna |
| CN108110871A (en) * | 2016-11-22 | 2018-06-01 | 中兴新能源汽车有限责任公司 | wireless charging secondary device and electric vehicle |
| CN108847706A (en) * | 2018-09-03 | 2018-11-20 | 北京有感科技有限责任公司 | A kind of multi-frequency wireless charging device and its application |
| CN108928247A (en) * | 2017-05-24 | 2018-12-04 | 本田技研工业株式会社 | Non-contact electric power transmission system |
| CN110380521A (en) * | 2019-07-02 | 2019-10-25 | 上海交通大学 | Three-winding wireless energy supply system for gastrointestinal tract microrobot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891538A (en) * | 2012-09-20 | 2013-01-23 | 中国科学院自动化研究所 | Line patrol robot wireless charging system |
| CN103078381A (en) * | 2013-01-27 | 2013-05-01 | 中国科学院电工研究所 | Wireless charging device for electric vehicle and output control method thereof |
| CN103248138A (en) * | 2013-05-28 | 2013-08-14 | 东南大学 | Power tracking control device and method for mobile equipment wireless power supply system |
| CN203261136U (en) * | 2013-05-31 | 2013-10-30 | 苏州源辉电气有限公司 | Mobile-equipment power supply system based on wireless power transmission |
-
2013
- 2013-05-31 CN CN2013102143541A patent/CN103280901A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891538A (en) * | 2012-09-20 | 2013-01-23 | 中国科学院自动化研究所 | Line patrol robot wireless charging system |
| CN103078381A (en) * | 2013-01-27 | 2013-05-01 | 中国科学院电工研究所 | Wireless charging device for electric vehicle and output control method thereof |
| CN103248138A (en) * | 2013-05-28 | 2013-08-14 | 东南大学 | Power tracking control device and method for mobile equipment wireless power supply system |
| CN203261136U (en) * | 2013-05-31 | 2013-10-30 | 苏州源辉电气有限公司 | Mobile-equipment power supply system based on wireless power transmission |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812229A (en) * | 2013-11-28 | 2014-05-21 | 华南理工大学 | Maximum power control method for three-resonance-coil wireless electric energy transmission system |
| CN103928961A (en) * | 2014-04-16 | 2014-07-16 | 国家电网公司 | Electric vehicle wireless charging system |
| WO2017041496A1 (en) * | 2015-09-08 | 2017-03-16 | 王清斌 | Passive nfc communication interface having independent energy receiving antenna |
| CN106374630A (en) * | 2016-11-03 | 2017-02-01 | 上海点派企业形象策划有限公司 | Low-voltage wireless power supply system |
| CN108110871A (en) * | 2016-11-22 | 2018-06-01 | 中兴新能源汽车有限责任公司 | wireless charging secondary device and electric vehicle |
| CN106505748A (en) * | 2016-12-22 | 2017-03-15 | 武汉大学 | The reverse wireless power supply system of unmanned aerial vehicle onboard energy storage and method of supplying power to |
| CN106505748B (en) * | 2016-12-22 | 2019-08-02 | 武汉大学 | The reversed wireless power supply system of unmanned aerial vehicle onboard energy storage and method of supplying power to |
| CN108928247A (en) * | 2017-05-24 | 2018-12-04 | 本田技研工业株式会社 | Non-contact electric power transmission system |
| CN108928247B (en) * | 2017-05-24 | 2021-08-20 | 本田技研工业株式会社 | Contactless electrical power transmission system |
| CN108847706A (en) * | 2018-09-03 | 2018-11-20 | 北京有感科技有限责任公司 | A kind of multi-frequency wireless charging device and its application |
| CN110380521A (en) * | 2019-07-02 | 2019-10-25 | 上海交通大学 | Three-winding wireless energy supply system for gastrointestinal tract microrobot |
| CN110380521B (en) * | 2019-07-02 | 2023-03-14 | 上海交通大学 | Three-coil wireless energy supply system for gastrointestinal tract micro-robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103280901A (en) | Mobile device power supply system based on wireless electricity transmission | |
| CN203261136U (en) | Mobile-equipment power supply system based on wireless power transmission | |
| JP5787027B2 (en) | Power transmission system | |
| CN103248138A (en) | Power tracking control device and method for mobile equipment wireless power supply system | |
| US20150214788A1 (en) | Wireless power transfer apparatus | |
| CN203660624U (en) | Wireless charging device with multiple transmitting terminals and single receiving terminal | |
| CN101345438A (en) | Wireless power supply | |
| CN104953682B (en) | Circuit and its device with wireless charging emission function Yu wireless charging receive capabilities | |
| CN204423325U (en) | A kind of wireless mouse | |
| WO2015035924A1 (en) | Wireless charging device and mobile terminal using same | |
| WO2021227652A1 (en) | Wireless charging device and device to be charged | |
| CN104617646A (en) | Intelligent wireless charging device based on ZVS self-exciting resonance | |
| CN103915907A (en) | Primary-secondary self-coupling magnetic resonance wireless power transmission device and operation method thereof | |
| WO2024051086A1 (en) | Electric power receiving device, electric power sending device, and electric power transmission method | |
| Moon et al. | Design of a 5-W power receiver for 6.78 MHz resonant wireless power transfer system with power supply switching circuit | |
| CN105119357A (en) | Remote wireless charging device | |
| CN102510116A (en) | Electric motor vehicle intelligent on-line charging system | |
| CN108767998A (en) | A kind of wireless charger | |
| CN201837921U (en) | Wireless power supply system of notebook computer and external mouse | |
| CN205123425U (en) | Miniwatt wireless power supply system | |
| CN206452148U (en) | A kind of wireless charging portable power source | |
| CN102684320B (en) | A kind of wireless power supply | |
| CN102651568A (en) | Wireless charging device | |
| Miura et al. | Bi-directional wireless charging between portable devices | |
| CN209608406U (en) | A kind of wireless power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |