CN203261136U - Mobile-equipment power supply system based on wireless power transmission - Google Patents
Mobile-equipment power supply system based on wireless power transmission Download PDFInfo
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- CN203261136U CN203261136U CN2013203109647U CN201320310964U CN203261136U CN 203261136 U CN203261136 U CN 203261136U CN 2013203109647 U CN2013203109647 U CN 2013203109647U CN 201320310964 U CN201320310964 U CN 201320310964U CN 203261136 U CN203261136 U CN 203261136U
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Abstract
The utility model discloses a mobile-equipment power supply system based on wireless power transmission, and the system consists of a power supply, a transmitting coil, a receiving coil, a load coil, and a rectification voltage-stabilization system, wherein the power supply, the transmitting coil, the receiving coil, the load coil and the rectification voltage-stabilization system are sequentially connected. The transmitting coil and the receiving coil have the same helical structures, diameters, materials, and number of turns. The load coil and the receiving coil are mounted on the same axis. A combination mode of an uncontrolled bridge rectifier with a DC/DC converter is employed for the rectification voltage-stabilization system. An energy transmitting device is composed of the power supply and the transmitting coil. An energy receiving device is composed of the receiving coil, the load coil and the rectification voltage-stabilization system. The energy transmitting device transmits energy continuously, and the energy receiving device receives the energy and supplies energy for mobile equipment. The system can efficiently and stably supply electrical energy for portable mobile equipment, solves the problems of short distance and low power of a conventional sensing-type wireless charging system, and another problem that a powered device has to be aligned with an electrical energy transmitting device, and achieves the regulation and control of transmission distance, transmission power, transmission voltage, and resonant frequency.
Description
Technical field
The utility model relates to a kind of power transfer, and specifically 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 (such as mobile phone, PAD, game machine, the small-sized movable 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 to regularly charge or directly carry out continuous firing by power supply adaptor.Charger or power supply adaptor all need to 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, although replaced to a certain extent cable, realized the wireless power of mobile device, but because its transmission range only limits to several centimetres, not spread use on market of the shortcomings such as current-collecting device must align with electric energy transmission device, and through-put power is less.
The utility model content
Technical problem to be solved in the utility model provides a kind of mobile equipment power supply system based on wireless power transmission, and this system needs mainly for charging and the continued power of mobile device.
In order to solve the problems of the technologies described above, the technical solution of the utility model 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 form 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 acquisition power and the adjustable radio-frequency power supply of frequency.
Described transmitting coil, receiving coil and loading coil adopt helical structure, and wherein loading coil is strictly coaxial with receiving coil, 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 utility model 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 the shortcomings such as electric energy transmission device aligns, have a good application prospect.The maximum 35cm of the utility model electric power system transmission range, maximum power 200W can realize the periodic charge of mobile device and the demand of continuous powered operation, and can realize regulating and control of transmission range, through-put power, output voltage and resonance frequency.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model electric power system.
Fig. 2 is the equivalent circuit diagram of the utility model electric power system.
Fig. 3 is rectifying and voltage-stabilizing system construction drawing in the utility model electric power system.
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 form 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 power and the adjustable radio-frequency power supply of frequency, 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 the utility model wireless power transmission model 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 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 described in the utility model, receiving coil 14 and loading coil 16 adopt helical structure, wherein loading coil 16 is strictly 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 in the case the normal operation of system.
Radio energy transmission system described in the utility model, 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 regulating and control of transmission range, through-put power, output voltage and resonance frequency.
As shown in Figure 3, rectifying and voltage-stabilizing described in the utility model 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 described in the utility model 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 limits the utility model never in any form, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in the protection range of the present utility model.
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 form 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: described power acquisition power and the adjustable radio-frequency power supply of frequency.
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 strictly coaxial with receiving coil, and transmitting coil and receiving coil be maximum to allow the axial dipole field of himself radius.
4. according to a kind of mobile equipment power supply system based on wireless power transmission claimed in 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 a kind of mobile equipment power supply system based on wireless power transmission claimed in claim 1, it is characterized in that: described DC/DC converter using anti exciting converter structure.
6. according to a kind of mobile equipment power supply system based on wireless power transmission claimed in claim 1, it is characterized in that: four silicon carbide diodes are adopted in described not controlled bridge-type rectification.
7. according to a kind of mobile equipment power supply system based on wireless power transmission claimed in 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 |
|---|---|---|---|
| CN2013203109647U CN203261136U (en) | 2013-05-31 | 2013-05-31 | Mobile-equipment power supply system based on wireless power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203109647U CN203261136U (en) | 2013-05-31 | 2013-05-31 | Mobile-equipment power supply system based on wireless power transmission |
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| Publication Number | Publication Date |
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| CN203261136U true CN203261136U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203109647U Expired - Fee Related CN203261136U (en) | 2013-05-31 | 2013-05-31 | Mobile-equipment power supply system based on wireless power transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280901A (en) * | 2013-05-31 | 2013-09-04 | 苏州源辉电气有限公司 | Mobile device power supply system based on wireless electricity transmission |
| CN104201792A (en) * | 2014-09-12 | 2014-12-10 | 中国科学院电工研究所 | Design method of wireless power transmission device |
| CN104242487A (en) * | 2014-09-30 | 2014-12-24 | 中国矿业大学 | Wireless power supply system and control method thereof of drive trolley type used for peripheral drive rake thickener |
| TWI513135B (en) * | 2013-11-18 | 2015-12-11 | Richtek Technology Corp | Power management unit and wireless power system thereof |
| CN104079081B (en) * | 2014-07-17 | 2016-06-08 | 南京矽力杰半导体技术有限公司 | Mode of resonance contactless power supply device and integrated circuit |
| CN106523538A (en) * | 2016-11-28 | 2017-03-22 | 顺德职业技术学院 | Heavy load coupling with wireless power supply and transmission functions |
-
2013
- 2013-05-31 CN CN2013203109647U patent/CN203261136U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280901A (en) * | 2013-05-31 | 2013-09-04 | 苏州源辉电气有限公司 | Mobile device power supply system based on wireless electricity transmission |
| TWI513135B (en) * | 2013-11-18 | 2015-12-11 | Richtek Technology Corp | Power management unit and wireless power system thereof |
| CN104079081B (en) * | 2014-07-17 | 2016-06-08 | 南京矽力杰半导体技术有限公司 | Mode of resonance contactless power supply device and integrated circuit |
| CN104201792A (en) * | 2014-09-12 | 2014-12-10 | 中国科学院电工研究所 | Design method of wireless power transmission device |
| CN104242487A (en) * | 2014-09-30 | 2014-12-24 | 中国矿业大学 | Wireless power supply system and control method thereof of drive trolley type used for peripheral drive rake thickener |
| CN104242487B (en) * | 2014-09-30 | 2016-06-08 | 中国矿业大学 | A kind of periphery transmission rake thickener transmission dolly wireless power supply system and control method thereof |
| CN106523538A (en) * | 2016-11-28 | 2017-03-22 | 顺德职业技术学院 | Heavy load coupling with wireless power supply and transmission functions |
| CN106523538B (en) * | 2016-11-28 | 2023-05-16 | 顺德职业技术学院 | Wireless power supply and transmission heavy-duty coupler |
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| 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: 20131030 Termination date: 20150531 |
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| EXPY | Termination of patent right or utility model |