CN103346627A - Multi-load wireless energy transmission device with primary end inductance frequency selection - Google Patents
Multi-load wireless energy transmission device with primary end inductance frequency selection Download PDFInfo
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- CN103346627A CN103346627A CN2013103294163A CN201310329416A CN103346627A CN 103346627 A CN103346627 A CN 103346627A CN 2013103294163 A CN2013103294163 A CN 2013103294163A CN 201310329416 A CN201310329416 A CN 201310329416A CN 103346627 A CN103346627 A CN 103346627A
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Abstract
The invention provides a multi-load wireless energy transmission device with primary end inductance frequency selection and belongs to the field of wireless energy transmission, and the device is used for solving the problem that an existing fixing structure can only selectively supply power to the load which is designated to be charged. The device comprises an energy transmission device and N energy receiving devices, wherein the electric signal input end of the transmission device is used for being connected with an external power supply; the electric signal output ends of the N energy receiving devices are respectively connected with the electric signal input ends of N loads; the transmission device and the N energy receiving devices are in wireless connection in a coupling manner; each energy receiving device comprises a transmission terminal converter and a wireless energy transmission circuit; each energy receiving device comprises a wireless energy receiving module and a receiving terminal converter, and the wireless energy receiving module comprises a capacitance device and an inductance device; each inductance device comprises a branch selector and an inductance control circuit; the inductance control circuit comprises N inductance branches. The multi-load wireless energy transmission device is used in a load charging system of a single-energy transmission terminal and a multi-energy receiving terminal.
Description
Technical field
The present invention relates to the multi-load wireless energy transform device of a kind of former end inductance frequency-selecting, belong to the wireless energy transfer field.
Background technology
That wireless energy transfer has overcome that traditional wired plug-in charging brings is dangerous, easy problem such as aging, not convenient.Wireless energy transfer has extensive use, as at charging batteries of electric automobile, and the household electrical appliances charging, the application in fields such as intelligent carrier has improved the automation and intelligentification level greatly.
Development along with wireless energy transmission technology, the multi-load wireless energy transfer system, be that monoergic transmitting terminal and multipotency receiving terminal system can satisfy the demand to a plurality of load chargings, yet, according to resonance principle as can be known, when energy transmitting terminal and energy receiving terminal circuit fixedly the time, resonance frequency is fixing thereupon, how to realize that it is a problem demanding prompt solution that giving of the structure selectivity fixed specified the load charging that needs charging.
Therefore, be necessary to provide a kind of improved system and method to solve above-mentioned technical problem.
Summary of the invention
The present invention seeks to optionally to give the problem of specifying the load charging that needs charging in order to solve the existing fixed structure, the multi-load wireless energy transform device of a kind of former end inductance frequency-selecting is provided.
The multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting, it comprises energy emitter and N energy receiving system, the electric signal input end of energy emitter is used for connecting the externally fed power supply, the electrical signal of N energy receiving system connects the electric signal input end of N load respectively, and energy emitter and N energy receiving system is by the coupled modes wireless connections;
Described energy emitter comprises transmitting terminal converter and wireless energy radiating circuit, the electric signal input end of transmitting terminal converter is used for connecting the externally fed power supply, and the electrical signal of transmitting terminal converter connects the electric signal input end of wireless energy radiating circuit;
Described each energy receiving system comprises wireless energy receiver module and receiving terminal converter, the electrical signal of wireless energy receiver module connects the electric signal input end of receiving terminal converter, the electrical signal of receiving terminal converter connects the electric signal input end of load
Described wireless energy radiating circuit comprises capacitive means and inductance device, and capacitive means and inductance device are connected in series on the electric signal input end of wireless energy radiating circuit;
Described inductance device comprises branch road selector and inductance control circuit, and branch road selector and inductance control circuit are connected in series on the electric signal input end of inductance device, and described inductance control circuit comprises N bar inductive branch, the parallel connection of described N bar inductive branch.
The multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting, it comprises energy emitter and N energy receiving system, the electric signal input end of energy emitter is used for connecting the externally fed power supply, the electrical signal of N energy receiving system connects the electric signal input end of N load respectively, and energy emitter and N energy receiving system is by the coupled modes wireless connections;
Described energy emitter comprises transmitting terminal converter and wireless energy radiating circuit, the electric signal input end of transmitting terminal converter is used for connecting the externally fed power supply, and the electrical signal of transmitting terminal converter connects the electric signal input end of wireless energy radiating circuit;
Described each energy receiving system comprises wireless energy receiver module and receiving terminal converter, the electrical signal of wireless energy receiver module connects the electric signal input end of receiving terminal converter, the electrical signal of receiving terminal converter connects the electric signal input end of load
Described wireless energy radiating circuit comprises capacitive means and inductance device, and capacitive means and inductance device are connected in series on the electric signal input end of wireless energy radiating circuit;
Described inductance device comprises N bar inductive branch, and N bar inductive branch is connected in parallel on the electric signal input end of inductance device, and every inductive branch comprises a switch and a plurality of inductance, described switch and inductance series connection.
The multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting is compared with traditional wireless energy transfer system, and the frequency-selecting charging method has been joined in the multi-load charging device.By regulating the transmitting terminal resonance frequency of wireless energy transmitting terminal, be that inductance device inductance size changes the transmitting terminal resonance frequency, regulating the transmitting terminal resonance frequency receiving terminal resonance frequency corresponding with the required load that is recharged about equally, thereby realization is charged to required load.And, select to offer the operating frequency of the switching signal of transmitting terminal converter according to the receiving terminal resonance frequency, to realize efficient charging.The multi-load wireless energy transform device of this former end inductance frequency-selecting is alternative efficiently charges for required charging load.
Description of drawings
Fig. 1 is the electrical block diagram of the multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting;
Fig. 2 is the capacitive means electrical block diagram of energy emitter of the present invention;
Fig. 3 is the another kind of electrical block diagram of the multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, the multi-load wireless energy transform device of the described former end inductance of present embodiment frequency-selecting, it comprises energy emitter 1 and N energy receiving system 2, the electric signal input end of energy emitter 1 is used for connecting externally fed power supply 3, the electrical signal of N energy receiving system 2 connects the electric signal input end of N load 4 respectively, and energy emitter 1 and N energy receiving system 2 is by the coupled modes wireless connections;
Described energy emitter 1 comprises transmitting terminal converter 11 and wireless energy radiating circuit 12, the electric signal input end of transmitting terminal converter 11 is used for connecting externally fed power supply 3, and the electrical signal of transmitting terminal converter 11 connects the electric signal input end of wireless energy radiating circuit 12;
Described each energy receiving system 2 comprises wireless energy receiver module 21 and receiving terminal converter 22, the electrical signal of wireless energy receiver module 21 connects the electric signal input end of receiving terminal converter 22, the electrical signal of receiving terminal converter 22 connects the electric signal input end of load 4
Described wireless energy radiating circuit 12 comprises capacitive means 121 and inductance device 122, and capacitive means 121 and inductance device 122 are connected in series on the electric signal input end of wireless energy radiating circuit 12;
Described inductance device 122 comprises branch road selector 1221 and inductance control circuit 1222, branch road selector 1221 is connected in series on the electric signal input end of inductance device 122 with inductance control circuit 1222, described inductance control circuit 1222 comprises N bar inductive branch, the parallel connection of described N bar inductive branch.
In the present embodiment, select different capacitive branch to change the capacitance size of capacitive means 121 by branch road selector 1221, and then changing the resonance frequency of energy emitter 1, the resonance frequency of the energy receiving system 2 that the resonance frequency that makes energy emitter 1 and load 4 are corresponding is equal.
In the present embodiment, the electric energy that transmitting terminal converter 11 is used for externally fed power supply 3 is provided converts alternating current to.The electric energy that described energy emitter 1 is used for externally fed power supply 3 is provided converts magnetic energy to, and this magnetic energy can transmit in air dielectric.Described energy receiving system 2 is used for converting the magnetic energy of wireless receiving to electric energy, the corresponding load 4 required electric energy of this electric energy.
Embodiment two: below in conjunction with Fig. 2 present embodiment is described, present embodiment is described further execution mode one, and described branch road selector 1221 is a single pole multiple throw.
In the present embodiment, described single pole multiple throw selects the mode of different capacitive branch to be: the conducting of control single pole multiple throw or shutoff select to connect into the capacitive branch of energy emitter 1.
Embodiment three: present embodiment is described below in conjunction with Fig. 1 and Fig. 3, the multi-load wireless energy transform device of the described former end inductance of present embodiment frequency-selecting, it comprises energy emitter 1 and N energy receiving system 2, the electric signal input end of energy emitter 1 is used for connecting externally fed power supply 3, the electrical signal of N energy receiving system 2 connects the electric signal input end of N load 4 respectively, and energy emitter 1 and N energy receiving system 2 is by the coupled modes wireless connections;
Described energy emitter 1 comprises transmitting terminal converter 11 and wireless energy radiating circuit 12, the electric signal input end of transmitting terminal converter 11 is used for connecting externally fed power supply 3, and the electrical signal of transmitting terminal converter 11 connects the electric signal input end of wireless energy radiating circuit 12;
Described each energy receiving system 2 comprises wireless energy receiver module 21 and receiving terminal converter 22, the electrical signal of wireless energy receiver module 21 connects the electric signal input end of receiving terminal converter 22, the electrical signal of receiving terminal converter 22 connects the electric signal input end of load 4
Described wireless energy radiating circuit 12 comprises capacitive means 121 and inductance device 122, and capacitive means 121 and inductance device 122 are connected in series on the electric signal input end of wireless energy radiating circuit 12;
Described inductance device 122 comprises N bar inductive branch, and N bar inductive branch is connected in parallel on the electric signal input end of inductance device 122, and every inductive branch comprises a switch 1223 and a plurality of inductance, described switch 1223 and inductance series connection.
In the present embodiment, select different capacitive branch to change the capacitance size of capacitive means 121 by the shutoff of switch 1223, and then changing the resonance frequency of energy emitter 1, the resonance frequency of the energy receiving system 2 that the resonance frequency that makes energy emitter 1 and load 4 are corresponding is equal.
Embodiment four: below in conjunction with Fig. 3 present embodiment is described, present embodiment is described further execution mode three, and described switch 1223 is a single-pole single-throw switch (SPST).
Embodiment five: below in conjunction with Fig. 2 and Fig. 3 present embodiment is described, present embodiment is described further execution mode one or embodiment three, and every inductive branch of described N bar inductive branch is an inductance or is composed in series by a plurality of inductance.
The directed charging principle of frequency-selecting is: the receiving terminal resonance frequency of each load correspondence comprises two frequencies: public frequency and independent frequency, and the transmitting terminal resonance frequency comprises a plurality of frequencies: a plurality of independent frequencies and the public frequency of a plurality of load correspondences; The receiving terminal public frequency is identical with the transmitting terminal public frequency.
When a plurality of loads need be charged simultaneously, the resonance frequency of regulating transmitting terminal was public frequency, and the resonance frequency of regulating receiving terminal is public frequency.
When a load need be charged, regulate the transmitting terminal resonance frequency and need be recharged the independent frequency of load correspondence for this, regulating the receiving terminal resonance frequency is independent frequency.
The multi-load wireless energy transform device of former end inductance of the present invention frequency-selecting is at the multi-load wireless energy transfer system, it is the monoergic transmitting terminal, the multipotency receiving terminal system is realized the process that the load of needs charging is charged by the resonance frequency that changes the energy transmitting terminal.Essence is to realize the change of resonance frequency by the size that changes the transmitting terminal inductance.This technology can reduce the copper loss of resonant circuit to improve utilization rate of electrical, have only the receiving terminal circuit of the load end that need be recharged in running order, the receiving terminal circuit of all the other load ends is not worked, thereby can realize the directed flow (the energy receiving terminal of the load correspondence that is recharged from the energy transmitting terminal to needs) of energy, and then the raising capacity usage ratio, improve system effectiveness.
Claims (5)
1. the multi-load wireless energy transform device of former end inductance frequency-selecting, it is characterized in that, it comprises energy emitter (1) and N energy receiving system (2), the electric signal input end of energy emitter (1) is used for connecting externally fed power supply (3), the electrical signal of N energy receiving system (2) connects the electric signal input end of N load (4) respectively, and energy emitter (1) and N energy receiving system (2) are by the coupled modes wireless connections;
Described energy emitter (1) comprises transmitting terminal converter (11) and wireless energy radiating circuit (12), the electric signal input end of transmitting terminal converter (11) is used for connecting externally fed power supply (3), and the electrical signal of transmitting terminal converter (11) connects the electric signal input end of wireless energy radiating circuit (12);
Described each energy receiving system (2) comprises wireless energy receiver module (21) and receiving terminal converter (22), the electrical signal of wireless energy receiver module (21) connects the electric signal input end of receiving terminal converter (22), the electrical signal of receiving terminal converter (22) connects the electric signal input end of load (4)
Described wireless energy radiating circuit (12) comprises capacitive means (121) and inductance device (122), and capacitive means (121) and inductance device (122) are connected in series on the electric signal input end of wireless energy radiating circuit (12);
Described inductance device (122) comprises branch road selector (1221) and inductance control circuit (1222), branch road selector (1221) is connected in series on the electric signal input end of inductance device (122) with inductance control circuit (1222), described inductance control circuit (1222) comprises N bar inductive branch, the parallel connection of described N bar inductive branch.
2. according to the multi-load wireless energy transform device of the described former end inductance of claim 1 frequency-selecting, it is characterized in that described branch road selector (1221) is a single pole multiple throw.
3. the multi-load wireless energy transform device of former end inductance frequency-selecting, it is characterized in that, it comprises energy emitter (1) and N energy receiving system (2), the electric signal input end of energy emitter (1) is used for connecting externally fed power supply (3), the electrical signal of N energy receiving system (2) connects the electric signal input end of N load (4) respectively, and energy emitter (1) and N energy receiving system (2) are by the coupled modes wireless connections;
Described energy emitter (1) comprises transmitting terminal converter (11) and wireless energy radiating circuit (12), the electric signal input end of transmitting terminal converter (11) is used for connecting externally fed power supply (3), and the electrical signal of transmitting terminal converter (11) connects the electric signal input end of wireless energy radiating circuit (12);
Described each energy receiving system (2) comprises wireless energy receiver module (21) and receiving terminal converter (22), the electrical signal of wireless energy receiver module (21) connects the electric signal input end of receiving terminal converter (22), the electrical signal of receiving terminal converter (22) connects the electric signal input end of load (4)
Described wireless energy radiating circuit (12) comprises capacitive means (121) and inductance device (122), and capacitive means (121) and inductance device (122) are connected in series on the electric signal input end of wireless energy radiating circuit (12);
Described inductance device (122) comprises N bar inductive branch, and N bar inductive branch is connected in parallel on the electric signal input end of inductance device (122), and every inductive branch comprises a switch (1223) and a plurality of inductance, described switch (1223) and inductance series connection.
4. according to the multi-load wireless energy transform device of the described former end inductance of claim 3 frequency-selecting, it is characterized in that described switch (1223) is a single-pole single-throw switch (SPST).
5. according to the multi-load wireless energy transform device of claim 1 or 3 described former end inductance frequency-selectings, it is characterized in that every inductive branch of described N bar inductive branch is an inductance or is composed in series by a plurality of inductance.
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| CN201310329416.3A CN103346627B (en) | 2013-07-31 | 2013-07-31 | The multi-load wireless energy transform device of former end inductance frequency-selecting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106541198A (en) * | 2017-01-10 | 2017-03-29 | 哈尔滨工业大学 | Wireless type welder |
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| CN101951036A (en) * | 2003-02-04 | 2011-01-19 | 通达商业集团国际公司 | Adaptive inductive power supply |
| CN102214954A (en) * | 2010-04-09 | 2011-10-12 | 索尼公司 | Power feeding apparatus, power receiving apparatus, wireless power feeding system and method for wireless transfer of power |
| CN102414957A (en) * | 2010-03-30 | 2012-04-11 | 松下电器产业株式会社 | Wireless power transmission system |
| US20130154373A1 (en) * | 2011-12-14 | 2013-06-20 | Linear Technology Corporation | Primary unit control of resonant inductive power transfer system for optimum efficiency |
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Patent Citations (4)
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|---|---|---|---|---|
| CN101951036A (en) * | 2003-02-04 | 2011-01-19 | 通达商业集团国际公司 | Adaptive inductive power supply |
| CN102414957A (en) * | 2010-03-30 | 2012-04-11 | 松下电器产业株式会社 | Wireless power transmission system |
| CN102214954A (en) * | 2010-04-09 | 2011-10-12 | 索尼公司 | Power feeding apparatus, power receiving apparatus, wireless power feeding system and method for wireless transfer of power |
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| CN106541198A (en) * | 2017-01-10 | 2017-03-29 | 哈尔滨工业大学 | Wireless type welder |
| CN106541198B (en) * | 2017-01-10 | 2018-10-09 | 哈尔滨工业大学 | Wireless type welder |
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