CN104753181A - Wireless power transmission apparatus with relay - Google Patents
Wireless power transmission apparatus with relay Download PDFInfo
- Publication number
- CN104753181A CN104753181A CN201310733792.9A CN201310733792A CN104753181A CN 104753181 A CN104753181 A CN 104753181A CN 201310733792 A CN201310733792 A CN 201310733792A CN 104753181 A CN104753181 A CN 104753181A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 14
- 238000010248 power generation Methods 0.000 claims description 12
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H02J5/005—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention discloses a wireless power transmission apparatus, and belongs to the technical field of electromagnetic fields. The wireless energy transmission device comprises a transmitting device, a relay device and a receiving device. The transmitting device comprises an energy generation circuit, two sets or more than two sets of energy excitation coils and energy transmitting coils. The number of the energy transmitting coils is the same with that of the energy excitation coils. The energy transmitting coils are disposed among the energy excitation coils and are arranged in parallel with the energy excitation coils. A plurality of energy excitation coils being as a whole are connected with the energy generation circuit in series/parallel. The receiving device comprises energy receiving coils, energy recovery coils and an energy recovery circuit. The energy recovery coils are connected with the energy recovery circuit. The energy receiving coils and the energy recovery coils are arranged in parallel. The relay device is relay resonance coils. The number of the relay resonance coils is the same as that of the energy transmitting coils, disposed between the energy transmitting coils and the energy receiving coils and arranged in parallel with the energy transmitting coils. A strong magnetic field is generated among the energy transmitting coils, attenuation of the magnetic field around the relay resonance coils can be reduced, and the range of energy transmission is effectively enhanced.
Description
Technical field
The invention belongs to electromagnetic field technology field, particularly relate to wireless electric energy transmission device.
Background technology
" wireless power transmission " utilizes a kind of special installation to be can the energy of radio transmission by the converting electric energy of power supply, receiving terminal again this energy conversion is wired back can, thus to electrical appliance wireless power.Traditional wireless power transmission adopts following two technology usually.(1) electromagnetic induction principle.Be positioned on close position by two coils, when electric current moves at a coil midstream, the magnetic flux produced becomes medium, causes also producing electromotive force in another coil.(2) the electromagnetic wave energy principle that can be sent by antenna and receive, substantially identical with broadcast receiver principle.The limitation of these two technology is: cannot obtain higher energy transmission efficiency in larger distance.In recent years, the close coupling magnetic resonance (StronglyCoupled Magnetic Resonances) proposed by the Massachusetts Institute of Technology is theoretical, tentatively solve " wireless power transmission " and remote and high efficiency problem cannot be taken into account, but based on the wireless energy transfer system of this theory, the transmitting and receiving coil that usual employing physical dimension is larger and identical, what adopt small size receiving coil is then difficult to maintenance middle distance transmission characteristic.
Summary of the invention
For the technical problem of above-mentioned existence, the invention provides a kind of wireless electric energy transmission device of tape relay, it adopts magnetic resonance principle, increases the distance of Energy Transfer with repeating coil.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of wireless electric energy transmission device of tape relay, comprises emitter, receiving system and relay;
Described emitter comprises power generation circuit, two groups or more energy-activation coil and energy transmitting coil;
Described energy transmitting coil quantity is identical with the quantity of energy-activation coil;
Described energy transmitting coil is placed between energy-activation coil, and places with energy-activation coil parallel side-by-side;
Described multiple energy-activation coil as a whole with power generation circuit series/parallel connection;
Described receiving system comprises energy acceptance coil, energy recovery coil and energy recovery circuit;
Described energy recovery coil is connected with energy recovery circuit;
Described energy acceptance coil and energy recovery coil parallel side-by-side are arranged;
Described relay is relaying resonance coil, and quantity is identical with the quantity of energy transmitting coil, is positioned between described energy transmitting coil and energy acceptance coil, and places with energy transmitting coil parallel side-by-side.
When described energy transmitting coil is three groups or more, around the receiving system that is placed in, and arrange with the energy acceptance coil parallel side-by-side of described receiving system.
Described energy acceptance coils from parallel connection of coils has electric capacity.
Described energy transmitting coil is parallel with electric capacity.
Described relaying resonance coil is parallel with electric capacity.
Described energy-activation coil is two or more parallel connections, measure-alike or different wire coils.
Described relaying resonance coil by two or more place side by side, measure-alike or different wire coils forms.
Described power generation circuit produces the frequency identical with the electricity resonance frequency of the electricity resonance frequency of the electricity resonance frequency of energy transmitting coil, relaying resonance coil, energy acceptance coil.
The present invention has the following advantages and beneficial effect:
1. energy-activation coil of the present invention adopts same power generation circuit, and avoiding different-energy generation circuit needs synchronous problem.
2. an energy-activation coil of the present invention, an energy transmitting coil and a relaying resonance coil are one group, adopt two groups or more in parallel, can produce more by force and more uniform magnetic field between two groups or more energy transmitting coil, increase effectively the distance of Energy Transfer, relaying resonance coil position can be regulated to change optimum capacity transmission range simultaneously.Compare with energy transmitting coil with non-relay energy-activation coil, when more remote, under the prerequisite of same distance, the coil of this structure can the efficiency of energization transmission; Keeping under the constant prerequisite of energy transmission efficiency, the coil of this structure can the effective distance transmitted of energization.If energy transmitting coil, relaying resonance coil are identical with the electricity resonance frequency of energy acceptance coil, then do not need shunt capacitance on energy transmitting coil, relaying resonance coil and energy acceptance coil, otherwise, need to be parallel with electric capacity respectively on energy transmitting coil, relaying resonance coil and energy acceptance coil, make both electricity resonance frequencys identical.
3. energy acceptance coil of the present invention and energy recovery coil size are less than energy-activation coil and energy transmitting coil, are applicable to the wireless electric energy transmission device of the medical electronics such as capsule endoscope, implanted electric stimulator apparatus.
4. the present invention produces stronger magnetic field between energy transmitting coil, can reduce the decay in magnetic field around relaying resonance coil, the scope of effective energization transmission.When same distance, the efficiency of energization transmission; When energy transmission efficiency is constant, the distance of energization transmission.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the structural representation of energy-activation coils from parallel connection of coils of the present invention;
Fig. 3 is the structural representation of energy-activation coils connected in series of the present invention.
In figure: 1. energy-activation coil, 2. energy transmitting coil, 3. relaying resonance coil, 4. energy acceptance coil, 5. energy recovery coil.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment 1: as shown in Figure 1, the present invention includes emitter, relay and receiving system, as Fig. 1, shown in Fig. 2, described emitter comprises power generation circuit, two groups or more energy-activation coil 1 and energy transmitting coil 2, described energy transmitting coil 2 quantity is identical with the quantity of energy-activation coil 1, described energy transmitting coil 2 is placed with energy-activation coil 1 parallel side-by-side respectively, and between energy-activation coil 1, described energy-activation coil 1 and power generation circuit are connected in series, when described energy transmitting coil 2 is two groups, be placed in receiving system both sides respectively, when described energy transmitting coil 2 is three groups or more, be placed in around receiving system, this example selects two groups of energy-activation coils 1 and energy transmitting coil 2, and energy transmitting coil 2 is arranged with the relaying resonance coil 3 of relay and energy acceptance coil 4 parallel side-by-side of receiving system.
This routine described relay comprises relaying resonance coil 3, and described relaying resonance coil 3 and energy transmitting coil 2 parallel side-by-side are arranged.
This routine described receiving system comprises energy acceptance coil 4, energy recovery coil 5 and energy recovery circuit, described energy recovery coil 5 is connected with energy recovery circuit, energy acceptance coil 4 and energy recovery coil 5 parallel side-by-side are arranged, and described energy recovery circuit adopts existing conventional rectification voltage stabilizing circuit.
This example is for making energy transmitting coil 2, relaying resonance coil 3 identical with the electricity resonance frequency of energy acceptance coil 4, or utilize the parasitic capacitance of energy transmitting coil 2, relaying resonance coil 3 and energy acceptance coil 4 itself, or at described energy transmitting coil 2, relaying resonance coil 3 and energy acceptance coil 4 shunt capacitance respectively.
Power generation circuit described in this example can be that various oscillator and power amplifier connect and compose, and the electricity resonance frequency of the frequency of its energy signal produced, the electricity resonance frequency of energy transmitting coil 2, relaying resonance coil 3, the electricity resonance frequency of energy acceptance coil 4 are identical.Described energy-activation coil 1 is made up of two or more parallel connections, measure-alike or different wire coils, and multiple coil is connected in parallel in the same circuit with power generation circuit as a whole.Described relaying resonance coil 3 can by one or more placement arranged side by side, measure-alike or different wire coils forms.
Power generation circuit produces the energy signal of fixed frequency, as sine wave signal.The frequency of its signal equals the electricity resonance frequency of energy transmitting coil 2.This frequency is also the electricity resonance frequency of relaying resonance coil 3 and energy acceptance coil 4.During whole system work, there is magnetic resonance in energy transmitting coil 2, relaying resonance coil 3 and energy acceptance coil 4, with higher efficiency transferring energy.
Embodiment 2: this example is identical with embodiment 1 overall structure, unlike: as shown in Figure 3, the energy-activation coil 1 of emitter described in this example is two or more series connection, measure-alike or different wire coils.Described energy transmitting coil 2 is two groups or more, when for two groups, is placed in the both sides of energy acceptance coil 4 respectively, when described energy transmitting coil 2 is three groups or more, around the energy acceptance coil 4 that is placed in.That described relaying resonance coil 3 is one or more placement arranged side by side, measure-alike or different wire coils.This example selects two groups of energy-activation coils 1, energy transmitting coil 2 and relaying resonance coil 3.
Claims (8)
1. a wireless electric energy transmission device for tape relay, is characterized in that, comprises emitter, receiving system and relay;
Described emitter comprises power generation circuit, two groups or more energy-activation coil and energy transmitting coil;
Described energy transmitting coil quantity is identical with the quantity of energy-activation coil;
Described energy transmitting coil is placed between energy-activation coil, and places with energy-activation coil parallel side-by-side;
Described multiple energy-activation coil as a whole with power generation circuit series/parallel connection;
Described receiving system comprises energy acceptance coil, energy recovery coil and energy recovery circuit;
Described energy recovery coil is connected with energy recovery circuit;
Described energy acceptance coil and energy recovery coil parallel side-by-side are arranged;
Described relay is relaying resonance coil, and quantity is identical with the quantity of energy transmitting coil, is positioned between described energy transmitting coil and energy acceptance coil, and places with energy transmitting coil parallel side-by-side.
2. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, when described energy transmitting coil is three groups or more, around the receiving system that is placed in, and arranges with the energy acceptance coil parallel side-by-side of described receiving system.
3. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, described energy acceptance coils from parallel connection of coils has electric capacity.
4. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, described energy transmitting coil is parallel with electric capacity.
5. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, described relaying resonance coil is parallel with electric capacity.
6. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, described energy-activation coil is two or more parallel connections, measure-alike or different wire coils.
7. the wireless electric energy transmission device of a kind of tape relay according to claim 1, is characterized in that, described relaying resonance coil by two or more place side by side, measure-alike or different wire coils forms.
8. the wireless electric energy transmission device of a kind of tape relay according to claim 1, it is characterized in that, described power generation circuit produces the frequency identical with the electricity resonance frequency of the electricity resonance frequency of the electricity resonance frequency of energy transmitting coil, relaying resonance coil, energy acceptance coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733792.9A CN104753181B (en) | 2013-12-25 | 2013-12-25 | A kind of wireless electric energy transmission device of tape relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733792.9A CN104753181B (en) | 2013-12-25 | 2013-12-25 | A kind of wireless electric energy transmission device of tape relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753181A true CN104753181A (en) | 2015-07-01 |
| CN104753181B CN104753181B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733792.9A Expired - Fee Related CN104753181B (en) | 2013-12-25 | 2013-12-25 | A kind of wireless electric energy transmission device of tape relay |
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| CN (1) | CN104753181B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148085A1 (en) * | 2016-03-04 | 2017-09-08 | 中惠创智无线供电技术有限公司 | Point-to-point wireless power transfer coil coupling model and point-to-point wireless power transfer system |
| CN110380520A (en) * | 2019-05-16 | 2019-10-25 | 刘溯奇 | A kind of static wireless charging method and device for mobile robot |
| CN112564315A (en) * | 2020-11-26 | 2021-03-26 | 国网浙江省电力有限公司杭州供电公司 | Optimal position determination method for relay coil based on optimal coupling coefficient interval |
| CN114157327A (en) * | 2021-11-30 | 2022-03-08 | 北京交大思诺科技股份有限公司 | Antenna design method for improving action range |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882282A (en) * | 2011-07-14 | 2013-01-16 | 索尼公司 | Power supply apparatus, power supply system, vehicle, and electronic apparatus |
-
2013
- 2013-12-25 CN CN201310733792.9A patent/CN104753181B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882282A (en) * | 2011-07-14 | 2013-01-16 | 索尼公司 | Power supply apparatus, power supply system, vehicle, and electronic apparatus |
Non-Patent Citations (1)
| Title |
|---|
| WENXING ZHONG,CHI,KWAN LEE: "General Analysis on the Use of Tesla’s Resonators in Domino Forms for Wireless Power Transfer", 《IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148085A1 (en) * | 2016-03-04 | 2017-09-08 | 中惠创智无线供电技术有限公司 | Point-to-point wireless power transfer coil coupling model and point-to-point wireless power transfer system |
| CN110380520A (en) * | 2019-05-16 | 2019-10-25 | 刘溯奇 | A kind of static wireless charging method and device for mobile robot |
| CN112564315A (en) * | 2020-11-26 | 2021-03-26 | 国网浙江省电力有限公司杭州供电公司 | Optimal position determination method for relay coil based on optimal coupling coefficient interval |
| CN114157327A (en) * | 2021-11-30 | 2022-03-08 | 北京交大思诺科技股份有限公司 | Antenna design method for improving action range |
| CN114157327B (en) * | 2021-11-30 | 2023-08-15 | 北京交大思诺科技股份有限公司 | Antenna design method for improving action range |
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| Publication number | Publication date |
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| CN104753181B (en) | 2018-06-19 |
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Granted publication date: 20180619 Termination date: 20191225 |