CN203225594U - Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system - Google Patents
Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system Download PDFInfo
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- CN203225594U CN203225594U CN2013202500489U CN201320250048U CN203225594U CN 203225594 U CN203225594 U CN 203225594U CN 2013202500489 U CN2013202500489 U CN 2013202500489U CN 201320250048 U CN201320250048 U CN 201320250048U CN 203225594 U CN203225594 U CN 203225594U
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- magnetic stripe
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Abstract
The utility model discloses an electric energy transmitting and receiving device of a high-efficiency large-power non-contact charging system. The device comprises an electric energy transmitting coil, an electric energy receiving coil and magnetism insulating plates; the electric energy transmitting coil and the electric energy receiving coil are the same in structure, the electric energy transmitting coil comprises a support, coils and magnetic stripes; the upper side of the support is provided with annular grooves which form a coil panel, and the coils are wound on the coil panel; the lower side of the support is provided with magnetic stripe grooves in which the magnetic stripes are located; the magnetism insulating plates are located at the outer sides of the magnetic stripes in the electric energy receiving coil; and the coils in the electric transmitting coil and the coils in the electric energy receiving coil are oppositely arranged. The electric transmitting and receiving device provided by the utility model is a disc type coil, can enable the magnetic field between the two coils to achieve coupling to the greatest degree, and to further increase the coupling degree of the coils, the arrangement mode of a double-layer coil is chosen, thereby enabling the overall efficiency of the system to be greatly improved.
Description
Technical field
The utility model belongs to the New Energy Automobile Engineering field, relates to a kind of non-contact charging device of electric automobile, is 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 to be easy to generate spark outside, came in contact accidents such as bad, electric shock, brought potential safety hazard to the user.When bad weather environmental conditions such as sleet, be not suitable for adopting lead contact charging, can have influence on outdoor charging and the normal operation of utility cars such as electric bus, environmental sanitation vehicles.The non-contact charge of electric automobile can overcome the above problems well.In the non-contact charge process, the structure of coil is one of key factor of non-contact charge improved efficiency, therefore designs good loop construction non-contact charge Study on Technology and exploitation 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: under the situation of close together, adopt the method for designing of separate type transformer, namely introduce permeability magnetic material around coil, energy exchange is carried out along the direction of permeability magnetic material in the magnetic field that the coil that makes high-frequency current pass through produces; Under distance situation far away, do not add permeability magnetic material, utilize the mutual inductance between the coil to carry out energetic interaction.Yet first kind of mode is subject to the distance of transmission, and under the bigger situation of distance, the leakage field between the coil increases greatly, makes the permeability magnetic material role have a greatly reduced quality; The second way, degree of coupling between the coil is very low, to pass through the efficient of the mode elevator system of raising frequency, 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
At the problem that prior art exists, the utility model proposes under a kind of, situation that the system works frequency is lower far away in distance, high-power, high efficiency electric energy transmitting and receiving device 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, alternating magnetic fields 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 the operating efficiency of system significantly, 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 exhausted magnetic material covers on the cover plate of the corresponding support of electric energy receiving coil below.
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; Exhausted magnetic sheet is arranged in the outside of electric energy receiving coil magnetic stripe; 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.
Advantage of the present utility model is:
1, electric energy transmitting and receiving device provided by the utility model 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, select the arrangement mode of double-layer coil, made the whole efficiency of system promote greatly;
2, coil dimension provided by the utility model is bigger, 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 utility model has played the effect of constraint magnetic direction, and the mode of thin slice stack can effectively reduce the eddy current loss of high frequency magnetic field.Have the U-shaped iron oxide magnetic stripe design of angle, can (be about under 10～20cm) the situation, there is certain guiding function in magnetic field, and then increases the degree of coupling of coil at middle distance;
4, insulation board provided by the utility model 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 the utility model electric energy transmitting and receiving device;
Fig. 2: A-A profile among the utility model Fig. 1;
Fig. 3: the vertical view of electric energy receiving coil of the present utility model;
Fig. 4: B-B profile among the utility model Fig. 3;
Fig. 5: iron oxide magnetic stripe structural representation of the present utility model;
Fig. 6: the partial enlarged drawing among the utility model Fig. 4.
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
Below in conjunction with accompanying drawing the utility model is elaborated.
The electric energy transmitting and receiving device of a kind of high-power, the high efficiency electric automobile non-contact charge that the utility model provides, 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 utility model 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 for use, the iron oxide magnetic stripe is U-shaped, for increasing the degree of coupling of 102 of coils, magnetic stripe 103 length are longer than the width of coil panel 104, its length is 200mm, the long magnetic stripe 103 of 200mm can be that magnetic induction line is more concentrated, magnetic stripe 103 width are designed to 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 utility model, 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;
Exhausted magnetic sheet 3 is arranged in the outside of electric energy receiving coil 2 magnetic stripes 103, and namely the secondary coil below is cut off magnetic sheet 3 and is used for isolated magnetic field, and its diameter is 830mm, and exhausted magnetic sheet 3 is the nylon sheet of 2mm for the thickness that aluminium foil covers.Exhausted magnetic sheet 3 can 102 leakage fields that produce when transmitting energy of absorbing coil, have solved the problem of electromagnetic compatibility.
The utility model 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, alternating magnetic fields 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 utility model has guaranteed that non-contact charger systems can be operated in more 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 based on permeability magnetic material, adopt coil to twine permeability magnetic material, pass through alternating current in coil, 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 big (more than about 2cm), permeability magnetic material disappears substantially to the constraint effect of magnetic induction line.Another kind of is carried out the induction in magnetic field with coil, and the magnetic field range that the coil that alternating current passes through produces is bigger, and efficient is very low.
The utility model is applied in the powerful noncontact field, difference with the prior art is, the utility model is based on coil, (be about under 10～20cm) the situation at middle distance, below primary coil and secondary coil, introduce permeability magnetic material, scope to magnetic field has been carried out certain constraint, solved the bigger problem of the above-mentioned second class methods 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 big.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 influence of leakage inductance to other devices in the non-contact charger systems.
Claims (10)
1. an efficient high power non-contact charger systems electric energy transmitting and receiving device 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); Exhausted magnetic sheet (3) is arranged in the outside of electric energy receiving coil (2) magnetic stripe (103); 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. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device 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. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 1, support (101) external diameter is 83cm, and internal diameter is 40cm, and its thickness is 30mm.
4. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 1, coil (102) adopts double-deck disc type.
5. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 1, coil (102) adopts enamel-cover copper litz wire or enamel-cover aluminium litz wire.
6. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device 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. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 1, described magnetic stripe (103) is selected the iron oxide magnetic stripe for use, 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. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 1, magnetic stripe (103) length is longer than the width of coil panel (104).
9. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 8, magnetic stripe (103) length is 200mm.
10. a kind of efficient high power non-contact charger systems electric energy transmitting and receiving device according to claim 8 cuts off the nylon sheet that magnetic sheet (3) is the aluminium foil covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202500489U CN203225594U (en) | 2013-05-09 | 2013-05-09 | Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202500489U CN203225594U (en) | 2013-05-09 | 2013-05-09 | Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system |
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| CN203225594U true CN203225594U (en) | 2013-10-02 |
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| CN2013202500489U Expired - Fee Related CN203225594U (en) | 2013-05-09 | 2013-05-09 | Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312047A (en) * | 2013-05-09 | 2013-09-18 | 北京航空航天大学 | High-efficiency large-power electric energy transmitting and receiving device of contactless charging system |
| CN104600874A (en) * | 2015-01-30 | 2015-05-06 | 哈尔滨工业大学 | Three-layer three-phase symmetry type coil applied to wireless electric energy transmission system |
| CN108242329A (en) * | 2016-12-27 | 2018-07-03 | 中国科学院沈阳自动化研究所 | A kind of non-contact charge coil |
| CN108886270A (en) * | 2016-02-23 | 2018-11-23 | Tdk株式会社 | Contactless power supply device and non-contact power transmission device |
-
2013
- 2013-05-09 CN CN2013202500489U patent/CN203225594U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312047A (en) * | 2013-05-09 | 2013-09-18 | 北京航空航天大学 | High-efficiency large-power electric energy transmitting and receiving device of contactless charging system |
| CN104600874A (en) * | 2015-01-30 | 2015-05-06 | 哈尔滨工业大学 | Three-layer three-phase symmetry type coil applied to wireless electric energy transmission system |
| CN104600874B (en) * | 2015-01-30 | 2017-01-25 | 哈尔滨工业大学 | Three-layer three-phase symmetry type coil applied to wireless electric energy transmission system |
| CN108886270A (en) * | 2016-02-23 | 2018-11-23 | Tdk株式会社 | Contactless power supply device and non-contact power transmission device |
| CN108886270B (en) * | 2016-02-23 | 2021-12-24 | Tdk株式会社 | Contactless power supply device and contactless power transmission device |
| CN108242329A (en) * | 2016-12-27 | 2018-07-03 | 中国科学院沈阳自动化研究所 | A kind of non-contact charge coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140509 |