CN104269945A - Non-contact power transmission system - Google Patents
Non-contact power transmission system Download PDFInfo
- Publication number
- CN104269945A CN104269945A CN201410574236.6A CN201410574236A CN104269945A CN 104269945 A CN104269945 A CN 104269945A CN 201410574236 A CN201410574236 A CN 201410574236A CN 104269945 A CN104269945 A CN 104269945A
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- CN
- China
- Prior art keywords
- power transmission
- inner ring
- transmission system
- magnetic core
- electric power
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention relates to the field of electrical connectors, in particular to a non-contact power transmission system. The non-contact power transmission system comprises a transmitting end and a receiving end, wherein each of the transmitting end and the receiving end comprises a magnetic core and a coil; each magnetic core comprises an inner ring, an outer ring and a base; the inner ring and the outer ring are fixed on the base through corresponding ends respectively; the coil is wound on the inner ring; one end, away from the base, of the inner ring protrudes out of the corresponding end of the outer ring. According to the non-contact power transmission system, one end, away from the base, of each of the inner rings of the magnetic cores of each of the transmitting end and the receiving end protrudes out of the corresponding ends of the outer rings. Therefore, the electromagnetic field can be better guided to be distributed in a wider range, so that the non-contact power transmission system has a longer power transmission distance and a wider range, thereby reducing the requirements on the shape of the magnetic core. In conclusion, the non-contact power transmission system is not only consistent with the size of non-contact power transmission systems, but also to meets the requirements on transmission distance.
Description
Technical field
The present invention relates to electric connector field, particularly relate to a kind of non-contact electric power transmission system.
Background technology
Noncontact power transmission technology is a new technology in the ascendant.Its mechanism of action relates to alternating electromagnetic field is transferred to coil from coil, and induces alternating current in receiving coil, and supplies portable power consumption equipment such as such as battery, mobile phone etc.The Major Difficulties of this technology is: how while guarantee efficiency of transmission, promote the distance of noncontact electric power transfer.
As everyone knows, in coil, add magnetic core, significantly can increase the inductance of coil, thus can reach identical inductance value by less coil turn, the minimizing of coil turn will reduce conductor resistance loss.Magnetic core also can reinvent the distribution of electromagnetic field, by the guiding to electromagnetic field, can promote the coupling coefficient of non-contact transmission coil, promotes transmission performance.
On mobile phone wireless charging device, core structure is designed to flat; And some other designs, coil is wound onto on the magnetic core of various shape.For non-contact electric power transmission system, the magnetic core external diameter of flat is excessive, is difficult to application; Then transmission range is too short to apply the magnetic core of other structures.
Summary of the invention
The object of the present invention is to provide a kind of non-contact electric power transmission system meeting size and transmission range requirement.
In order to solve the problem, non-contact electric power transmission system is by the following technical solutions: non-contact electric power transmission system, comprise transmitting terminal and receiving terminal, transmitting terminal and receiving terminal comprise magnetic core and coil separately, magnetic core comprises inner ring, outer ring and is located at the pedestal of inside and outside circle one end, inside and outside circle is all fixed on pedestal by its respective respective end, and coil winding is on inner ring, and one end away from pedestal of inner ring protrudes from the respective end of outer ring.
Transmitting terminal and receiving terminal also comprise signal antenna separately, inner ring is provided with axially through endoporus, the signal antenna of transmitting terminal by corresponding, be connected with signal emission control module through the cable of the endoporus of inner ring, the signal antenna of receiving terminal is connected with Signal reception control module by accordingly, through the cable of the endoporus of inner ring.
The outer rim place of described pedestal is provided with the breach supplying the cable of coil to pass through.
Described inner ring is continued by two or more sections and forms.
One end away from pedestal due to the transmitting terminal of non-contact electric power transmission system of the present invention and the inner ring of receiving terminal magnetic core separately protrudes from the respective end of outer ring.Therefore, electromagnetic field can be better guided to distribute in wider scope, thus make the distance of the electric power transfer of non-contact electric power transmission system farther, wider, thus the requirement that can reduce core shapes, in sum, non-contact electric power transmission system of the present invention had both met non-contact electric power transmission system size, can meet again its requirement to transmission range.
Further, first the inner ring continued by two or more sections can simplify production technology, is secondly air gap during separate component assembling, can effectively hinders magnetically saturated generation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of non-contact electric power transmission system of the present invention;
Fig. 2 is the structural representation of transmitting terminal;
Fig. 3 is the structural representation of receiving terminal;
Fig. 4 is the transmission magnetic line of force distribution sketch of the magnetic core of the embodiment of non-contact electric power transmission system of the present invention;
Fig. 5 is the transmission magnetic line of force distribution sketch of tank shape magnetic core;
Fig. 6 is the structural representation of magnetic core;
Fig. 7 is the exploded view of magnetic core;
Fig. 8 is the coil winding schematic diagram of magnetic core.
Embodiment
The embodiment of the magnetic core of non-contact electric power transmission system, as shown in figures 1-8, this non-contact electric power transmission system comprises transmitting terminal and receiving terminal.
Transmitting terminal comprises magnetic core 21, electric power coil 22, signal antenna 23, emission control module 24 and power supply and signal receiving processor 25.Magnetic core 21 comprises inner ring 11, outer ring 12 and is located at the pedestal 13 of inside and outside circle one end.
In the present embodiment, inside and outside circle is circular sleeve and is integral type structure separately, and what wherein inner ring 11 and outer ring 12 were coaxial is arranged in outer ring 12, and the endoporus of inner ring 11 is axially through, and it passes for supplying corresponding cable.
Inside and outside circle is all fixed on pedestal 13, pedestal 13 is provided with the through hole corresponding with the endoporus of inner ring, and it is to pass for corresponding cable equally, in addition, the outer rim place of base is provided with breach 14, and the setting of breach 14 is to pass for corresponding cable to be wrapped on inner ring 11.After inside and outside circle is all fixing with pedestal, one end away from pedestal 13 of inner ring 11 protrudes from the respective end of outer ring 12, and in the present embodiment, inner ring protrudes outer ring 20%, and certainly, in other embodiments, inner ring protrudes outer ring 20% all can.The benefit enabling inner ring protrude from outer ring is: the structure of magnetic core better guides electromagnetic field to distribute in wider scope, makes the distance of noncontact electric power transfer farther, wider.As shown in Figure 4, when transmitting terminal and receiving terminal are all magnetic cores, the distance of electromagnetic coupled, scope is wide, and the situation of the tank shape magnetic core shown in comparison diagram 5, the scope of electromagnetic coupled is little, and couple electromagnetic is few.Fig. 4, Fig. 5 are only that actual electromagnetic field distribution is more complicated to a kind of simple description of electromagnetic coupled.Tank shape core structure feature is: inner ring flushes with outer ring.Last it is important to note that the magnetic core of transmitting terminal is made up of the material of high magnetic permeability, this material can be manganese-zinc ferrite, or other appropriate materials; As shown in Figure 8, it is according to the numbering winding successively in diagram for the winding of electric power coil 22.
The difference of receiving terminal and transmitting terminal is only, power supply and signal receiving processor is replaced in order to load signal launches processor 31, replaces emission control module in order to receive control module 32.
Signal antenna is placed in the front end of magnetic core, the cavity formed and emission control module, receives control module and is connected by inner ring and the pedestal of magnetic core.The beneficial effect done like this is: Signal transmissions is not easily by the interference of electric power transfer electromagnetic field, and the directionality of Signal transmissions is higher.
In other embodiment of the magnetic core of non-contact electric power transmission system, the structure that the inner ring of magnetic core can also adopt multi-segmental to continue, certainly, the structure that outer ring also can adopt multi-segmental to continue, pedestal can also adopt split-type structural.Known to those skilled in the art: magnetic core is if a single entirety, and its inductance value is higher.And if magnetic core is formed by the part combination of multiple separation, first can simplify production technology, secondly be air gap during separate component assembling, can effectively hinder magnetically saturated generation.Therefore, being separated by each part, being separated into multiple part once again, is to hinder magnetically saturated generation to a greater extent.The profile of magnetic core can also be other shape, and the profile of inner ring, outer ring, pedestal can be other shapes beyond circle, such as regular hexagon etc.; Outer ring also can be that a band is slotted incomplete cylindrical.The inner ring of magnetic core, outer ring and pedestal can also adopt the structure of integral type.
Introduce the operation principle of this system below: power supply and Signal reception process supply electrical power to emission control module, electric power is changed into the alternating current of preset frequency by emission control module, and according to existing technical literature, the scope of preset frequency is 20kHz ~ 100MHz.High-frequency alternating current is by wire transmission to electric power coil, and electric power coil is wrapped on magnetic core in a helical pattern, and high-frequency alternating current, by electric power coil, produces electromagnetic field of high frequency around magnetic core and electric power coil.Above-mentioned electromagnetic field of high frequency induces high-frequency alternating current in the electric power coil of receiving terminal, and this induction of high frequency alternating current is given by wire transmission and received control module.Receiving control module is direct current or industrial-frequency alternating current by high-frequency ac electric rectification, for load and signal launch process power supply.After load and signal transmitting process obtain power supply, will detect or need the signal (temperature value of such as temperature sensor) transmitted to be transferred to reception control module; Receive control module by above-mentioned signal madulation to (such as conventional without the need to the 2.4GHz carrier wave section through application for registration) on high-frequency electromagnetic carrier wave, and launched by the signal antenna of receiving terminal.After the signal antenna of transmitting terminal receives above-mentioned high-frequency electromagnetic carrier wave, electromagnetic carrier is transferred to emission control module.Emission control module required signal transmission from high-frequency electromagnetic carrier wave demodulation out, and is finally transferred to the final treatment facility of signal.
Claims (4)
1. non-contact electric power transmission system, comprise transmitting terminal and receiving terminal, transmitting terminal and receiving terminal comprise magnetic core and coil separately, magnetic core comprises inner ring, outer ring and is located at the pedestal of inside and outside circle one end, inside and outside circle is all fixed on pedestal by its respective respective end, coil winding, on inner ring, is characterized in that, one end away from pedestal of inner ring protrudes from the respective end of outer ring.
2. non-contact electric power transmission system according to claim 1, it is characterized in that, transmitting terminal and receiving terminal also comprise signal antenna separately, inner ring is provided with axially through endoporus, the signal antenna of transmitting terminal by corresponding, be connected with signal emission control module through the cable of the endoporus of inner ring, the signal antenna of receiving terminal is connected with Signal reception control module by accordingly, through the cable of the endoporus of inner ring.
3. non-contact electric power transmission system according to claim 1, is characterized in that, the outer rim place of described pedestal is provided with the breach supplying the cable of coil to pass through.
4. the non-contact electric power transmission system according to any one of claim 1-3, is characterized in that, described inner ring is continued by two or more sections and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574236.6A CN104269945A (en) | 2014-10-24 | 2014-10-24 | Non-contact power transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574236.6A CN104269945A (en) | 2014-10-24 | 2014-10-24 | Non-contact power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104269945A true CN104269945A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410574236.6A Pending CN104269945A (en) | 2014-10-24 | 2014-10-24 | Non-contact power transmission system |
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| CN (1) | CN104269945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599387A (en) * | 2018-05-14 | 2018-09-28 | 中国石油集团西部钻探工程有限公司 | Electromagnetism inner cylinder assembly, electromagnetism outer barrel assembly and non-contact energy information transmitting device |
| CN114122846B (en) * | 2021-10-27 | 2023-11-14 | 中航光电科技股份有限公司 | Wireless electric energy data hybrid transmission rotary connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334638A (en) * | 2000-07-25 | 2002-02-06 | 松下电工株式会社 | Transformer for noncontact charging and method for mfg. charged electric implement device |
| WO2013186180A1 (en) * | 2012-06-11 | 2013-12-19 | Tyco Electronics Nederland B.V. | Contactless connector, contactless connector system, and a manufacturing method for the contactless connector |
| EP2693454A1 (en) * | 2011-03-31 | 2014-02-05 | Sony Corporation | Power-receiving coil, power-reception device, and contactless power-transmission system |
| CN104036934A (en) * | 2013-03-06 | 2014-09-10 | 株式会社东芝 | Inductor and method of manufacturing the same |
-
2014
- 2014-10-24 CN CN201410574236.6A patent/CN104269945A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334638A (en) * | 2000-07-25 | 2002-02-06 | 松下电工株式会社 | Transformer for noncontact charging and method for mfg. charged electric implement device |
| EP2693454A1 (en) * | 2011-03-31 | 2014-02-05 | Sony Corporation | Power-receiving coil, power-reception device, and contactless power-transmission system |
| WO2013186180A1 (en) * | 2012-06-11 | 2013-12-19 | Tyco Electronics Nederland B.V. | Contactless connector, contactless connector system, and a manufacturing method for the contactless connector |
| CN104036934A (en) * | 2013-03-06 | 2014-09-10 | 株式会社东芝 | Inductor and method of manufacturing the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599387A (en) * | 2018-05-14 | 2018-09-28 | 中国石油集团西部钻探工程有限公司 | Electromagnetism inner cylinder assembly, electromagnetism outer barrel assembly and non-contact energy information transmitting device |
| CN114122846B (en) * | 2021-10-27 | 2023-11-14 | 中航光电科技股份有限公司 | Wireless electric energy data hybrid transmission rotary connector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |