CN103312047A - High-efficiency large-power electric energy transmitting and receiving device of contactless charging system - Google Patents
High-efficiency large-power electric energy transmitting and receiving device of contactless charging system Download PDFInfo
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- CN103312047A CN103312047A CN2013101684210A CN201310168421A CN103312047A CN 103312047 A CN103312047 A CN 103312047A CN 2013101684210 A CN2013101684210 A CN 2013101684210A CN 201310168421 A CN201310168421 A CN 201310168421A CN 103312047 A CN103312047 A CN 103312047A
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Abstract
The invention discloses a high-efficiency large-power electric energy transmitting and receiving device of a contactless charging system. The high-efficiency large-power electric energy transmitting and receiving device of the contactless charging system comprises an electric energy transmitting coil, an electric energy receiving coil and a magnetism insulating plate, wherein the electric energy transmitting coil and the electric energy receiving coil are of the same structure; the electric energy transmitting coil comprises a support, a coil and magnetic stripes; annular grooves are formed in the upper part of the support; the annular grooves form a coil panel; the coil is wound round the coil panel; magnetic stripe slots are formed under the support; the magnetic stripes are located in the magnetic stripe slots; the magnetism insulating plate is located on the outer sides of the magnetic strips in the electric energy receiving coil; and the coil in the electric energy transmitting coil is arranged in a way of being opposite to a coil in the electric energy receiving coil. The electric energy transmitting and receiving device provided by the invention as a disc type coil can enable magnetic fields between the two coils to be furthest coupled; and for better coupling between the coils, a double-layer coil arrangement mode is selected, so that the overall efficiency of the system is improved greatly.
Description
Technical field
The invention belongs to the New Energy Automobile Engineering field, relate to a kind of non-contact charging device of electric automobile, be specifically related to a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device.
Background technology
When electric automobile adopted conventional wires formula charging modes, energized conductor is exposed easily to produce spark outside, came in contact the accidents such as bad, electric shock, brought potential safety hazard to the user.When the bad weather environmental conditions such as sleet, be not suitable for adopting the charging of wire contact, can have influence on outdoor charging and the normal operation of the utility cars such as Electric Transit vehicle, environmental sanitation vehicles.The non-contact charge of electric automobile can overcome the above problems well.Therefore in the non-contact charge process, the structure of coil is one of key factor of non-contact charge improved efficiency, designs good loop construction the research and development of non-contact charge technology are had great significance.
At present, adopt loop construction to carry out the transmission of energy to the research of non-contact charge both at home and abroad more.The design of loop construction mainly contains dual mode: in the situation that close together, adopt the method for designing of detachable Transformer, namely around coil, introduce permeability magnetic material, so that energy exchange is carried out along the direction of permeability magnetic material in the magnetic field that the coil that high-frequency current passes through produces; In the situation that distant, do not add permeability magnetic material, utilize the mutual inductance between the coil to carry out energetic interaction.Yet first kind of way is subject to the distance of transmission, in the situation that distance is larger, the leakage field between the coil increases greatly, so that the permeability magnetic material role is had a greatly reduced quality; The second way, degree of coupling between the coil is very low, will be by putting forward the efficient of high-frequency mode elevator system, the lifting of system works frequency can cause that the loss of front end inverter circuit increases, cause the decline of system effectiveness, simultaneously, in the system work process, high-frequency alternating magnetic field externally has certain radiation, and electromagnetic compatibility problem is very serious.
Summary of the invention
Problem for prior art exists the present invention proposes a kind of in the situation that distant, lower, high-power, the high efficiency electric energy transmitting and receiving device of system works frequency comprises an electric energy transmitting coil and an electric energy receiving coil.Utilize high-frequency ac current to pass through the electric energy transmitting coil and produce alternating magnetic field, the other end in magnetic field arranges the electric energy receiving coil, and based on electromagnetic induction principle, the magnetic field of alternation induces the electric current of alternation at the electric energy receiving coil, realizes emission and the reception of electric energy.Electric energy transmitting coil and electric energy receiving coil all adopt the winding arrangement of bilayer, large tracts of land, multiturn number, the iron oxide magnetic stripe that special shape is introduced in the bottom of electric energy transmitting coil and electric energy receiving coil effectively fetters magnetic direction, can improve significantly the operating efficiency of system, simultaneously, the exhausted magnetic material of electric energy receiving coil introducing can solve electromagnetic compatibility problem.The iron oxide magnetic stripe of electric energy transmitting coil, electric energy receiving coil and special shape is fixed on the support, and the magnetic material covers on the cover plate of the corresponding support of electric energy receiving coil below absolutely.
A kind of electric energy transmitting and receiving device of high-power, high efficiency electric automobile non-contact charge comprises electric energy transmitting coil, electric energy receiving coil and exhausted magnetic sheet;
The electric energy transmitting coil is identical with electric energy receiving coil structure, and the electric energy transmitting coil comprises support, coil and magnetic stripe; The support top is provided with annular groove, and annular groove forms coil panel, and coil panel is used for the discharging coil, and coil panel arranges with support is concentric, and coil panel is on coil panel; The below of support is provided with the magnetic stripe groove, and the magnetic stripe groove is for prolonging diametric(al), and magnetic stripe is positioned at the magnetic stripe groove; Magnetic sheet is arranged in the outside of electric energy receiving coil magnetic stripe absolutely; Coil in coil in the electric energy transmitting coil and the electric energy receiving coil is oppositely arranged, and the electric energy transmitting coil becomes primary coil, and the electric energy receiving coil becomes secondary coil.
The invention has the advantages that:
1, electric energy transmitting and receiving device provided by the present invention is sandwich wound coil, can be that two magnetic fields between the coil reach maximum coupling, in order further to increase the degree of coupling between the coil, selected the arrangement mode of double-layer coil, so that the whole efficiency of system promotes greatly;
2, coil dimension provided by the present invention is larger, large-sized coil can effectively increase the mutual inductance value between the coil, and mutual inductance is worth lifting can guarantee that the lower operating frequency of system (is about under the 20kHz～40kHz) very high operating efficiency (greater than 80%) still can be arranged;
3, iron oxide magnetic stripe provided by the present invention has played the effect of binding magnetic field direction, and the mode of thin slice stack can effectively reduce the eddy current loss of high frequency magnetic field.Be with angled U-shaped iron oxide magnetic stripe design, can in the situation that middle distance (be about 10～20cm), there is certain guiding function in magnetic field, and then increase the degree of coupling of coil;
4, insulation board provided by the present invention has been isolated the magnetic field between coil and the vehicle effectively, has avoided the problem of electromagnetic compatibility.
Description of drawings
Fig. 1: the vertical view of electric energy transmitting and receiving device of the present invention;
Fig. 2: A-A profile among Fig. 1 of the present invention;
Fig. 3: the vertical view of electric energy receiving coil of the present invention;
Fig. 4: B-B profile among Fig. 3 of the present invention;
Fig. 5: iron oxide magnetic stripe structural representation of the present invention;
Fig. 6: the partial enlarged drawing among Fig. 4 of the present invention.
Among the figure:
The exhausted magnetic sheet of 1-electric energy transmitting coil 2-electric energy receiving coil 3-
101-support 102-coil 103-magnetic stripe
104-coil panel 105-magnetic stripe groove
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
The electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge provided by the invention, as shown in Figures 1 to 4, comprise electric energy transmitting coil 1, electric energy receiving coil 2 and exhausted magnetic sheet 3, electric energy transmitting coil 1 is identical with electric energy receiving coil 2 structures.
Electric energy transmitting coil 1 comprises support 101, coil 102 and magnetic stripe 103;
The below of support 101 is provided with 12 magnetic stripe grooves 105, and magnetic stripe groove 105 is wide to be 40mm, longly is 200mm, and magnetic stripe groove 105 is for prolonging diametric(al), and magnetic stripe 103 is positioned at magnetic stripe groove 105.
The diametric magnetic stripe 103 of the present invention can effectively fetter the direction of magnetic induction line, avoids magnetic field to extraradial loss, increases the degree of coupling between the coil 102.
As shown in Figure 5, described magnetic stripe 103 is selected the iron oxide magnetic stripe, the iron oxide magnetic stripe is U-shaped, for increasing the degree of coupling of 102 of coils, the width of magnetic stripe 103 Length Ratio coil panels 104 is longer, its length is 200mm, the long magnetic stripe 103 of 200mm can be that magnetic induction line is more concentrated, magnetic stripe 103 width designs are 40mm, the end during the iron oxide magnetic stripe is U-shaped, and the inboard is designed to 120 ° bent angle, inboard bent angle is near the center of circle of support 101, inboard bent angle helps, and the magnetic induction line that the primary coil that high-frequency current passes through (electric energy transmitting coil 1) produces passes the center of secondary coil (electric energy receiving coil 2) dish, reduces leakage field.
In the electric energy transmitting and receiving device of the present invention, the coil 102 in the electric energy transmitting coil 1 is oppositely arranged with the coil 102 in the electric energy receiving coil 2, and electric energy transmitting coil 1 becomes primary coil, and electric energy receiving coil 2 becomes secondary coil;
Magnetic sheet 3 is arranged in the outside of electric energy receiving coil 2 magnetic stripes 103 absolutely, and namely below the secondary coil, magnetic sheet 3 is used for isolated magnetic field absolutely, and its diameter is 830mm, and magnetic sheet 3 is the nylon sheet of 2mm for the thickness of aluminium foil covering absolutely.The leakage field that produces when absolutely magnetic sheet 3 can 102 transferring energies of absorbing coil has solved the problem of electromagnetic compatibility.
The present invention utilizes high-frequency ac current to pass through electric energy transmitting coil 1 and produces alternating magnetic field, the other end in magnetic field arranges electric energy receiving coil 2, based on electromagnetic induction principle, the magnetic field of alternation induces the electric current of alternation at electric energy receiving coil 2, realize emission and the reception of electric energy, the design of a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device of the present invention has guaranteed that non-contact charger systems can be operated in relatively high power (20kW), relatively low frequency (under 20～40kHz), the efficient very high (greater than 80%) of while non-contact charger systems.
Prior art one class is take permeability magnetic material as main body, adopt the coil winding permeability magnetic material, pass through in coil alternating current, produce alternating magnetic field, the direction that the magnetic induction line of alternating magnetic field prolongs permeability magnetic material forms the loop, and primary coil twines permeability magnetic material and twines transformer that separates of permeability magnetic material formation with secondary coil.This mode effect when the primary and secondary close together is fine, yet along with distance increases, leakage inductance increases, and the degree of coupling of primary and secondary increases, when primary and secondary distance when large (approximately more than the 2cm), permeability magnetic material disappears substantially to the constraint effect of magnetic induction line.Another kind of the induction of carrying out magnetic field with coil, the magnetic field range that the coil that alternating current passes through produces is larger, and efficient is very low.
The present invention is applied in the powerful noncontact field, difference with the prior art is, the present invention is take coil as main body, in the situation that middle distance (is about 10～20cm), below primary coil and secondary coil, introduce permeability magnetic material, scope to magnetic field has been carried out certain constraint, solved the larger problem of above-mentioned Equations of The Second Kind method magnetic field range, utilize simultaneously and increase electric energy transmitting and receiving device size, the mode that has increased the coil number of plies increases the degree of coupling between coil, has further improved the charge efficiency of non-contact charger systems when distance is larger.Compare with non-contact charge device for converting electric energy now in addition, considered the problem of electromagnetic compatibility, below the electric energy receiving system, added the design of exhausted magnetic sheet, prevented the impact of leakage inductance on other devices in the non-contact charger systems.
Claims (10)
1. the electric energy transmitting and receiving device of high-power, a high efficiency electric automobile non-contact charge comprises electric energy transmitting coil (1), electric energy receiving coil (2) and exhausted magnetic sheet (3);
Electric energy transmitting coil (1) is identical with electric energy receiving coil (2) structure, and electric energy transmitting coil (1) comprises support (101), coil (102) and magnetic stripe (103); Support (101) top is provided with annular groove, and annular groove forms coil panel (104), and coil panel (104) is used for discharging coil (102), and coil panel (104) is coiled on the coil panel (104) with the concentric setting of support (101), coil (102); The below of support (101) is provided with magnetic stripe groove (105), and magnetic stripe groove (105) is for prolonging diametric(al), and magnetic stripe (103) is positioned at magnetic stripe groove (105); Magnetic sheet (3) is arranged in the outside of electric energy receiving coil (2) magnetic stripe (103) absolutely; Coil (102) in coil (102) in the electric energy transmitting coil (1) and the electric energy receiving coil (2) is oppositely arranged, and electric energy transmitting coil (1) becomes primary coil, and electric energy receiving coil (2) becomes secondary coil.
2. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1 is provided with 13 annular grooves above the support (101), and the wide of annular groove is 4mm, is 8mm deeply.
3. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, support (101) external diameter is 83cm, and internal diameter is 40cm, and its thickness is 30mm.
4. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, coil (102) adopts double-deck disc type.
5. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, coil (102) adopts enamel-cover copper litz wire or enamel-cover aluminium litz wire.
6. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, the below of support (101) is provided with 12 magnetic stripe grooves (105), and magnetic stripe groove (105) is wide to be 40mm, longly is 200mm.
7. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, described magnetic stripe (103) is selected the iron oxide magnetic stripe, the iron oxide magnetic stripe is U-shaped, wherein the U-shaped inboard of an end is provided with 120 ° bent angle, and inboard bent angle is near the center of circle of support (101).
8. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 1, the width of magnetic stripe (103) Length Ratio coil panel (104) is longer.
9. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 8, magnetic stripe (103) length is 200mm.
10. the electric energy transmitting and receiving device of a kind of high-power, high efficiency electric automobile non-contact charge according to claim 8, magnetic sheet (3) is the nylon sheet of aluminium foil covering absolutely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101684210A CN103312047A (en) | 2013-05-09 | 2013-05-09 | High-efficiency large-power electric energy transmitting and receiving device of contactless charging system |
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| CN2013101684210A CN103312047A (en) | 2013-05-09 | 2013-05-09 | High-efficiency large-power electric energy transmitting and receiving device of contactless charging system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730925A (en) * | 2013-12-17 | 2014-04-16 | 昆山欣海韵贸易有限公司 | Wireless charger with adjustable coil number |
| CN104779686A (en) * | 2015-04-03 | 2015-07-15 | 天津大学 | Method for improving efficiency of ICPT (inductively coupled power transfer)-based non-contact charging for electric vehicle |
| CN106211403A (en) * | 2016-08-05 | 2016-12-07 | 中山市通威电器有限公司 | A kind of 3D three-dimensional heating coil panel |
| CN107624090A (en) * | 2015-05-16 | 2018-01-23 | 奥迪股份公司 | Method for the charging station of motor vehicle and for running charging station |
| 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 |
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| CN102098819A (en) * | 2009-12-10 | 2011-06-15 | 美的集团有限公司 | Electromagnetic induction coil panel and manufacturing process thereof |
| JP4852829B2 (en) * | 2004-07-28 | 2012-01-11 | セイコーエプソン株式会社 | Non-contact power transmission device |
| CN202444334U (en) * | 2012-03-05 | 2012-09-19 | 朱斯忠 | Automated guided vehicle (AGV) radio energy coupler |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730925A (en) * | 2013-12-17 | 2014-04-16 | 昆山欣海韵贸易有限公司 | Wireless charger with adjustable coil number |
| CN103730925B (en) * | 2013-12-17 | 2016-02-03 | 昆山欣海韵贸易有限公司 | A kind of adjustable wireless charger of the number of turns of coil |
| CN104779686A (en) * | 2015-04-03 | 2015-07-15 | 天津大学 | Method for improving efficiency of ICPT (inductively coupled power transfer)-based non-contact charging for electric vehicle |
| CN107624090A (en) * | 2015-05-16 | 2018-01-23 | 奥迪股份公司 | Method for the charging station of motor vehicle and for running charging station |
| CN106211403A (en) * | 2016-08-05 | 2016-12-07 | 中山市通威电器有限公司 | A kind of 3D three-dimensional heating coil panel |
| 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 |
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Application publication date: 20130918 |