CN102403803A - Unidirectional transmission wireless power supply antenna module - Google Patents
Unidirectional transmission wireless power supply antenna module Download PDFInfo
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- CN102403803A CN102403803A CN2010102847156A CN201010284715A CN102403803A CN 102403803 A CN102403803 A CN 102403803A CN 2010102847156 A CN2010102847156 A CN 2010102847156A CN 201010284715 A CN201010284715 A CN 201010284715A CN 102403803 A CN102403803 A CN 102403803A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 230000004907 flux Effects 0.000 claims description 21
- 239000000696 magnetic material Substances 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 2
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
A wireless power supply antenna module with a one-way transmission function is composed of a metal substrate, a magnetic conduction layer, a coil layer and an insulating panel, wherein the layers are sequentially bonded through an adhesive, and the module with a fixed shape is formed. The wireless power supply antenna module with the one-way transmission function realizes one-way transmission and one-way reception, energy is only transmitted between the transmitting coil and the receiving coil, the efficiency is high, the loss is small, the transmission distance is long, and the radiation is small.
Description
Technical field
The present invention relates to a kind of wireless power Anneta module with one-way transmission function.
Background technology
Wireless power based on electromagentic resonance is a kind of non-contact type electric energy transmission technology; Its working method is: with a LC resonant circuit electric energy is converted into magnetic energy and outwards launches; Receive magnetic energy with another LC resonant circuit and be converted into electric energy; These two resonant circuits work under the same frequency, therefore this resonance are called electromagentic resonance.
Usually, because the transmission in magnetic field is confined between two magnetic poles, the transmission range in magnetic field is shorter, especially alternating magnetic field; Magnetic field only is distributed in the both sides of coil plane, and the biquadratic of magnetic field intensity and distance is inversely proportional to, and along with the increase of distance, magnetic field intensity sharply reduces; Therefore, the efficient of electromagentic resonance is quite low, more greatly apart from the time, even approach zero; Even closely under (like several millimeter) state, efficient is less than 50% often also, causes a large amount of wastes of energy.
The transmission range how just can accomplish both to have increased electromagentic resonance, can the while be improved the efficiency of transmission of electric energy again? Wireless power Anneta module with one-way transmission function is a comparatively desirable solution.
Summary of the invention
A kind of wireless power Anneta module with one-way transmission function, it is made up of metal substrate, flux guide layer, coil layer and insulating panel, and is bonding through adhesive successively between each layer, module with solid shape of form.
Coil layer in the Anneta module is the main body of Anneta module, and it is the planar coil that is formed by lead (being generally enamelled wire) coiling, if module serves as emission; Coil is converted into magnetic energy with electric energy and outwards launches; If serve as reception, coil absorbs magnetic energy and is converted into electric energy, supplies load to use.Coil in this Anneta module, with the planar fashion coiling, an available single cord also can be used a multi cord, even can use two single cords or multi cord and around.Replacing the purpose of single cord with multi cord is in order to reduce the eddy current of coil itself, promptly to reduce copper loss.Under small-power sending and receiving state, can directly use single cord, under high-power state, use multi cord, to improve the coil quality, improve the receipts ability of coil.
Flux guide layer is made up of the high frequency permeability magnetic material, and it is close to a side of coil, and its effect has three, one, strengthens the magnetic conduction ability, strengthens magnetic density; The 2nd, the copper loss of minimizing coil, the working temperature of reduction coil; The 3rd, the direction of transfer in the magnetic field of change coil one side.Usually, behind the coil electricity, the both sides of coil produce equal, the in the opposite direction magnetic field of intensity; And along the normal direction transmission of coil, the adding of flux guide layer is originally after the magnetic field that normal direction is transmitted is absorbed by flux guide layer; Along the plane of flux guide layer to around diffusion, promptly be parallel to coil plane and spread from inside to outside, coil layer is formed the semi-surrounding state; Like this, the magnetic line of force of coil cutting significantly increases, and efficient obviously improves.Because the effect of flux guide layer, originally bidirectional magnetic field has become the unidirectional magnetic field, such Anneta module, if be used for emission, and then can only unidirectional emission, and transmitting range increases, and efficient is improved, then can only unidirectionally receive if be used for receiving, and the receiving ability enhancing.During use, transmitting antenna module and reception antenna module are placed relatively, and energy will be two intermodule efficient transfer.
Flux guide layer is a monoblock permeability magnetic material, also can be to be spliced by the little permeability magnetic material of polylith.
The material quality of flux guide layer is except relevant with the characteristic of material itself, and is also relevant with thickness and area.
The opposite side of flux guide layer is attached on the metal substrate, and metal substrate also has function of shielding except being used for fixing other each layer; It absorbs a small amount of magnetic field of leaking from flux guide layer; Form eddy current, this is necessary to reducing radiation, and metal substrate also has heat sinking function in addition.
Insulating panel is attached to the surface of coil layer, and coil is played protective effect, plays insulating effect simultaneously, and this is the measure of important safety.
The wireless power Anneta module of this one-way transmission function has been realized unidirectional emission and unidirectional reception, and energy only transmits between transmitting coil and receiving coil, and efficient is high, loss is little, long transmission distance, and also radiation is little.
Description of drawings
Fig. 1 is that sketch map is looked on the right side of the wireless power Anneta module of one-way transmission.
Fig. 2 is the decomposing schematic representation of the wireless power Anneta module of one-way transmission.
Fig. 3 is that the wireless power Anneta module of one-way transmission concerns sketch map in transmitting and receiving application.
Fig. 4 is the radiating circuit schematic diagram of the wireless power Anneta module of one-way transmission.
Fig. 5 is one of the receiving circuit schematic diagram of the wireless power Anneta module of one-way transmission.
Fig. 6 be one-way transmission the wireless power Anneta module the receiving circuit schematic diagram two.
Among Fig. 1, I is a metal substrate, and M is a flux guide layer, and L is a coil layer, and P is an insulating panel.
Among Fig. 2, I is a metal substrate, and M is a flux guide layer, and L is a coil layer, and P is an insulating panel.
Among Fig. 3, R is the reception antenna module, and T is the transmitting antenna module, and the part of two modular structures is identical all identical with the order of connection, but in use places in opposite directions.Wherein I is a metal substrate, and M is a flux guide layer, and L is a coil layer, and P is an insulating panel.Arrow is represented the direction of electrical energy transfer among the figure, promptly from transmitting antenna module T to reception antenna module R.
Among Fig. 4, L represents the transmitting antenna module, and C is a resonant capacitance, and IC is a chip for driving, and Vt is a resonance potential, and Vd is the operating voltage of IC.
Among Fig. 5, L represents the reception antenna module, and C is a resonant capacitance, and D1, D2, D3 and D4 are rectifier diode, and C2 is a filter capacitor.Vo is an output voltage.
Among Fig. 6, coil L1 and coil L2 two-wire and around, in same antenna module, represent the reception antenna module, C is a resonant capacitance, D1 and D2 are rectifier diode, IC is the receiving management chip, C2 is a filter capacitor, Vo is an output voltage, Vk is the operating voltage of IC.
Embodiment
Be described further below in conjunction with the wireless power Anneta module of instance one-way transmission.
The making of the wireless power Anneta module of instance one, one-way transmission.
According to illustrated in figures 1 and 2, find or make four kinds of materials: metal substrate I, flux guide layer M, coil layer L, insulating panel P.Insulating panel P is nonmetallic materials, and like plastic plate, glass mat etc., thickness is different different because of material, is generally 0.5-2MM, and area is decided according to the actual requirements, such as the wireless power that is used for display, and available square panel, the about 10-20CM of the length of side.Coil layer L is the coil panel with the enamelled wire coiling, and the maximum gauge of coil panel is no more than the size of insulating panel P, and the used enamelled wire of coil layer L can be the single cord more than or two; Also can be the multi cord more than or two, under the small-power state, available single cord; High-power state is used multi cord down; Usually, transmitting antenna is with an enamelled wire, and reception antenna is with one or two above enamelled wires; The number of turn of coil layer L is determined that by operating voltage voltage is high, and the number of turn is big, otherwise then little.Flux guide layer M is the high frequency permeability magnetic material, and the gross area is no more than the area of insulating panel P, and thickness is decided according to the needs of actual power, and during high-power transmitting-receiving, flux guide layer M is just thicker, and during the small-power transmitting-receiving, flux guide layer M is just thin, generally between 0.1-20MM.Metal substrate I is a metal plate, and material can be copper, aluminium, iron or stainless steel etc.; Be used for fixing other each layer, simultaneously, it absorbs a small amount of magnetic field of leaking from flux guide layer; Form eddy current and no longer outwards launch, so have certain function of shielding, metal substrate I also has heat sinking function in addition; It is longer than other several layer materials, has more part and is used for emission or circuit board for receiving are installed, and become the radiator of circuit board.
With adhesive above-mentioned each layer cemented successively then, just become the Anneta module of wireless power, it has unidirectional emission or unidirectional receiving function.
The unidirectional emission module that instance two, this Anneta module of usefulness are made wireless power.
Among Fig. 4, the two ends of transmitting antenna module L and the two ends of resonant capacitance C compose in parallel a LC resonance launching circuit, and the energy of the power supply of spontaneous emission in the future Vd is gone out to the surface emitting of insulating panel P with electromagnetic mode under the driving of chip IC.Chip IC can be used VOXxxMPxx series wireless power transmitting chip, and this is a kind of HF switch chip with fixed frequency, and circuit is very simple, as long as an operating voltage Vd is provided.Chip IC resonant capacitor C and circuit board all are fixed on the metal substrate I of Anneta module, and utilize the fin of metal substrate I as chip IC, so just become the unidirectional emission module of a complete wireless power.
Instance three, this Anneta module of usefulness are made the unidirectional receiver module of wireless power.
One of unidirectional receiver module: as shown in Figure 5, reception antenna module L is after resonant capacitance C is parallelly connected; Through the full-bridge rectification of forming by D1, D2, D3 and D4; By capacitor C 2 filtering, just obtain DC power supply Vo again, these elements directly are fixed on the metal substrate I of Anneta module with a circuit; The unidirectional receiver module of forming a complete wireless power, directly powering load.
Two of unidirectional receiver module: as shown in Figure 6, two coil L1 and L2 are arranged among the reception antenna module L, two-wire and around; These two coils join end to end and tap as ground wire, resonant capacitance C is directly parallelly connected with coil, but first with parallelly connected with coil groups again after control IC is connected; IC can use VOXxxKxA series wireless power receiving chip, and the resonance condition of LC receives the control of IC like this, just can export a metastable voltage; Through the full-bridge rectification of forming by D1 and D2; By capacitor C 2 filtering, just obtain DC power supply Vo again, these elements directly are fixed on the metal substrate I of Anneta module with a circuit; Form the unidirectional receiver module of a complete wireless power, can directly power supply be provided for load.
Instance four, this Anneta module position relation in real work.
As shown in Figure 3, transmitting antenna module T upwards launches electric energy among the figure, and reception antenna module R places the top of Anneta module T, and placing relatively and keeping certain distance, reception antenna module R just can continue to receive electric energy is electric.
Claims (4)
1. wireless power Anneta module with one-way transmission function, it is made up of metal substrate, flux guide layer, coil layer and insulating panel, and is bonding through adhesive successively between each layer, module with solid shape of form.
2. the wireless power Anneta module with one-way transmission function according to claim 1; Its flux guide layer is made up of the high frequency permeability magnetic material; It is close to a side of coil; The magnetic field of absorbing coil normal direction also changes the direction of transfer in magnetic field, makes the coil that has two-way emission or two-way receiving function originally, becomes to having only the coil of unidirectional emission or unidirectional receiving function.
3. the wireless power Anneta module with one-way transmission function according to claim 1; Its coil is usually with the planar fashion coiling; An available single cord coiling also can be used a stranded conductor coiling, in addition can use two single cords or stranded conductor and around.
4. the wireless power Anneta module with one-way transmission function according to claim 1; Its substrate is a metal plate; It is except with the flux guide layer that fixes, coil layer and the insulating panel; Also can be fixed on the metal substrate with the resonant capacitance and the control circuit thereof of coils from parallel connection of coils, and utilize this piece substrate, thereby form wireless power supply module with emission function or receiving function as fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102847156A CN102403803A (en) | 2010-09-08 | 2010-09-08 | Unidirectional transmission wireless power supply antenna module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102847156A CN102403803A (en) | 2010-09-08 | 2010-09-08 | Unidirectional transmission wireless power supply antenna module |
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| Publication Number | Publication Date |
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| CN102403803A true CN102403803A (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102847156A Pending CN102403803A (en) | 2010-09-08 | 2010-09-08 | Unidirectional transmission wireless power supply antenna module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795851A (en) * | 2014-01-20 | 2015-07-22 | 启碁科技股份有限公司 | Wireless charging system and suspension system |
| CN105119392A (en) * | 2015-09-30 | 2015-12-02 | 武汉大学 | Electric car dynamic wireless power supply system based on resonance magnetic coupling technology and method |
| CN106816297A (en) * | 2012-04-10 | 2017-06-09 | 松下知识产权经营株式会社 | Contactless power transmission device, electric supply installation and current-collecting device |
| CN107492440A (en) * | 2017-09-20 | 2017-12-19 | 成都瑞德星无线技术有限公司 | A kind of wireless electric energy transmission device with electromagnet shield effect |
| CN109327081A (en) * | 2017-08-01 | 2019-02-12 | 中惠创智无线供电技术有限公司 | A kind of wireless electric energy transmission device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006042519A (en) * | 2004-07-28 | 2006-02-09 | Seiko Epson Corp | Contactless power transmission device |
| CN101557127A (en) * | 2008-04-10 | 2009-10-14 | 朱斯忠 | Wireless supply source |
-
2010
- 2010-09-08 CN CN2010102847156A patent/CN102403803A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006042519A (en) * | 2004-07-28 | 2006-02-09 | Seiko Epson Corp | Contactless power transmission device |
| CN101557127A (en) * | 2008-04-10 | 2009-10-14 | 朱斯忠 | Wireless supply source |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816297A (en) * | 2012-04-10 | 2017-06-09 | 松下知识产权经营株式会社 | Contactless power transmission device, electric supply installation and current-collecting device |
| US10008323B2 (en) | 2012-04-10 | 2018-06-26 | Panasonic Intellectual Property Management Co., Ltd. | Wireless power transmission system, power transmitting device, and power receiving device |
| CN106816297B (en) * | 2012-04-10 | 2020-01-07 | 松下知识产权经营株式会社 | Wireless power transmission device, power supply device, and power receiving device |
| CN104795851A (en) * | 2014-01-20 | 2015-07-22 | 启碁科技股份有限公司 | Wireless charging system and suspension system |
| CN105119392A (en) * | 2015-09-30 | 2015-12-02 | 武汉大学 | Electric car dynamic wireless power supply system based on resonance magnetic coupling technology and method |
| CN109327081A (en) * | 2017-08-01 | 2019-02-12 | 中惠创智无线供电技术有限公司 | A kind of wireless electric energy transmission device |
| CN107492440A (en) * | 2017-09-20 | 2017-12-19 | 成都瑞德星无线技术有限公司 | A kind of wireless electric energy transmission device with electromagnet shield effect |
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Application publication date: 20120404 |