CN105406610B - Coil applied to mobile transporting equipment wireless power decouples two-phase reception device certainly - Google Patents
Coil applied to mobile transporting equipment wireless power decouples two-phase reception device certainly Download PDFInfo
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- CN105406610B CN105406610B CN201511018641.0A CN201511018641A CN105406610B CN 105406610 B CN105406610 B CN 105406610B CN 201511018641 A CN201511018641 A CN 201511018641A CN 105406610 B CN105406610 B CN 105406610B
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Coil applied to mobile transporting equipment wireless power belongs to magnet coupled resonant type wireless electric energy transmission technology field from two-phase reception device is decoupled.Solve the problem of existing mobile transporting equipment power supplying efficiency is low.2n receiving coil tiles along actual motion direction arrange successively, the front end of latter receiving coil is pressed in the rear end of previous receiving coil, and overlapping region is wide, counted from side, 1st, the 3rd, the 5th receiving coil, ..., and the two neighboring receiving coil that 1 receiving coil of 2n is constituted in the 1st Phase Receiver coil, the 1st Phase Receiver coil is sequentially connected in series by different name end；2nd, the 4th, the 6th receiving coil ..., and the two neighboring receiving coil that the 2n receiving coil is constituted in the 2nd Phase Receiver coil, the 2nd Phase Receiver coil are sequentially connected in series by different name end；The width of overlapping region for single receiving coil width 1/3~1/2 between.Suitable for electric automobile wireless power.
Description
Technical field
The invention belongs to magnet coupled resonant type wireless electric energy transmission technology field.
Background technology
With the enhancing that low-carbon environment-friendly, green energy conservation are realized, increasing mobile transporting equipment is used as it using electric energy
Power resources, common power supply mode has three kinds of sliding contact formula, cable-pulling chain formula and battery-operated type.Wherein, sliding contact
Mode security reliability is low, and maintenance cost is high, and cable-pulling chain formula has strict limitation to displacement, and use environment is very limited.
In the higher occasion of the requirement on flexibility to equipment, typically battery-powered mode.And battery power supply mode has two kinds
Shortcoming, a kind of is the presence of the various problems such as volume, weight, price, material, safety, charging rate, the life-span of battery, is also had
The production process of battery belongs to high pollution, the process for expending resource, destroying ecological environment, industry of these shortcomings to electric automobile
Change brings difficulty.Another is the charging infrastructure problem on ground, is on the one hand shown due to charging interval length, it is necessary to big
Electric facility is changed in the charging of amount, and these facilities need to take substantial amounts of floor area, while frequent maintenance is needed, another aspect table
Present equipment needs charging of frequently stopping, the relatively low operational efficiency of equipment.And utilize wireless power transmission technology can just
Enough solve these problems.
Mobile transporting equipment wireless power supply system can make equipment in real time to power or be supplemented for battery at work
Electric energy.The technology not only significantly even unconfined can improve the cruising time of equipment, and need what is carried to move in equipment
The quantity of power battery can also be greatly lowered, it might even be possible to completely without battery, on ground will there is no charging station, change electricity
Stand.All power supply facilities are in below ground.Equipment should not have charging problems again, electric energy problem by subsurface power supply network
Network is solved automatically.And realizing in mobile transporting equipment wireless power, wireless power transmission structure is to the performance of system and builds
Be set as originally playing extremely important effect, these performances include power supplying efficiency, maximum transmitted ability, airspace, sidesway ability,
Durability degree, electromagnetic radiation intensity, effect on environment degree etc. many aspects.How by power supply rail FERRITE CORE knot
The structure of structure and electric energy reception device is reasonably designed, and is asking for this area urgent need to resolve so as to improve above-mentioned performance
Topic.
The content of the invention
Present invention aim to address the power supply security reliability of existing mobile transporting equipment is low, maintenance cost
It is high, the problem of power supplying efficiency is low, it is proposed that coil applied to mobile transporting equipment wireless power is from decoupling two-phase reception device.
Coil applied to mobile transporting equipment wireless power connects from two-phase reception device, the coil is decoupled from two-phase is decoupled
Receiving apparatus coordinates ambipolar power supply rail to realize wireless power transmission；It includes one flat plate magnetic core 4 and 2n receiving coil, n
More than or equal to 1；
2n receiving coil tiles along actual motion direction arrange successively, and the front end of latter receiving coil is pressed in previous
The rear end of receiving coil, and overlapping region is wide, 2n receiving coil after tiling is placed on the upper surface of flat board magnetic core 4；And
Flat board magnetic core 4 at least covers the region that the inward flange of 2n receiving coil is surrounded；
Counted from side, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and 2n-1
The two neighboring receiving coil that receiving coil is constituted in the 1st Phase Receiver coil 1, the 1st Phase Receiver coil 1 is gone here and there successively by different name end
Connect；
2nd receiving coil, the 4th receiving coil, the 6th receiving coil ... ..., and the 2n receiving coil composition the
Two neighboring receiving coil in the Phase Receiver coil 2 of 2 Phase Receiver coil the 2, the 2nd is sequentially connected in series by different name end；
The width of overlapping region for single receiving coil width 1/3~1/2 between.
The centre distance D of two neighboring receiving coil is the ambipolar power supply coordinated with coil from decoupling two-phase reception device
The 1/2 of the centre distance of two neighboring magnetic pole in track.
Receiving coil uses LITZ lines or multiply enamel insulated wire coiling.
Coil applied to mobile transporting equipment wireless power is received from two-phase reception device, coil is decoupled from two-phase is decoupled
Device is used cooperatively with ambipolar power supply rail, completes wireless power；Ambipolar power supply rail includes power cable, magnetic pole and iron
Ferrite core, magnetic pole is located on FERRITE CORE, and power cable is wrapped on magnetic pole, and the magnetic direction phase on adjacent pole
Instead；Transmitting coil is connected with primary compensation capacitor, is powered using high frequency inverter；
It also includes the 1st phase resonance compensating electric capacity 5, the 2nd phase resonance compensating electric capacity 6 and two rectifier bridges 7；
1st Phase Receiver coil 1 is connected with the 1st phase resonance compensating electric capacity 5, and the 1st phase resonance compensating electric capacity 5 connects a rectification
Bridge 7；
2nd Phase Receiver coil 2 is connected with the 2nd phase resonance compensating electric capacity 6, and it is whole that the 2nd phase resonance compensating electric capacity 6 connects another
Flow bridge 7；
Two rectifier bridges 7 are received from decoupling two-phase as the coil applied to mobile transporting equipment wireless power after concatenating and filled
The output end put.
Reception device of the present invention coordinates bipolar emitter guide rail (emitter) to carry out being wirelessly transferred for electric energy,
Magnetic direction is opposite on derivation rail adjacent pole.When reception device combination emitter works, the electric current of alternation passes through supply lines
Cable produces the magnetic field of alternation opposite in real time on adjacent magnetic pole, and emitter is by magnetic coupling effect with reception device
Being wirelessly transferred for electric energy can be realized.
Beneficial effects of the present invention are：In the reception device of the present invention, two-phase receiving coil is overlapping using coiler part
Mode, by rationally designing coil position and size, the coefficient of coup for realizing two phase coils is zero, it is ensured that two-phase receiving coil is humorous
It will not be influenced each other when shaking.
Compared with prior art, the invention has the advantages that：
1st, reception device along power supply rail move when, in the absence of power zero point, transimission power fluctuation range is small；
2nd, the coefficient of coup is 0 between two-phase receiving coil, therefore receiving terminal optional position, any time on power supply rail,
Two-phase receiving coil can be worked simultaneously, and with early stage, the two-phase receiving terminal of identical size is compared, and transimission power is bigger；
3rd, reception device uses planarized structure, and structure is frivolous, occupies little space；
4th, compared with two-phase receiving terminal compare, receiving coil uses non-overlapping structure, and receiving coil size is bigger, with
Degree of coupling between power supply rail is higher.
The coil proposed by the present invention for being applied to mobile transporting equipment wireless power coordinates double from two-phase reception device is decoupled
Polar form power supply rail realizes wireless power transmission.The power supply security reliability that solves existing mobile transporting equipment is low,
The problem of maintenance cost is high, power supplying efficiency is low.
The present invention is applied to electric automobile wireless power.
Brief description of the drawings
Fig. 1 is the structural representation from decoupling two-phase reception device without the coil of magnetic core two；
Fig. 2 is Fig. 1 top view；
Fig. 3 is to have the coil of magnetic core two from the structural representation for decoupling two-phase reception device；
Fig. 4 is Fig. 3 bottom view；
Fig. 5 is the structural representation from decoupling two-phase reception device without the coil of magnetic core four；
Fig. 6 is Fig. 5 top view；
Fig. 7 is to have the coil of magnetic core four from the structural representation for decoupling two-phase reception device；
Fig. 8 is Fig. 7 bottom view；
Fig. 9 can structural representation to there is the coil of magnetic core two to be passed from decoupling two-phase reception device with a kind of ambipolar power supply rail
Figure；
Figure 10 is Fig. 9 side views, and the magnetic line of force moves towards schematic diagram；
Figure 11 is that the coil in embodiment five is overall from system when two-phase reception device carries out wireless power transmission that decouples
Structural representation；
Figure 12 is the structural representation of different name end series connection between two receiving coils；
Figure 13 is the structural representation of Same Name of Ends series connection between two receiving coils.
Embodiment
Embodiment one, present embodiment, present embodiment institute are illustrated referring to figs. 1 to Fig. 8, Figure 12 and Figure 13
The coil for being applied to mobile transporting equipment wireless power stated receives dress from two-phase reception device, the coil is decoupled from two-phase is decoupled
Put the ambipolar power supply rail of cooperation and realize wireless power transmission；It includes one flat plate magnetic core 4 and 2n receiving coil, and n is more than
Equal to 1；
2n receiving coil tiles along actual motion direction arrange successively, and the front end of latter receiving coil is pressed in previous
The rear end of receiving coil, and overlapping region is wide, 2n receiving coil after tiling is placed on the upper surface of flat board magnetic core 4；And
Flat board magnetic core 4 at least covers the region that the inward flange of 2n receiving coil is surrounded；
Counted from side, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and 2n-1
The two neighboring receiving coil that receiving coil is constituted in the 1st Phase Receiver coil 1, the 1st Phase Receiver coil 1 is gone here and there successively by different name end
Connect；
2nd receiving coil, the 4th receiving coil, the 6th receiving coil ... ..., and the 2n receiving coil composition the
Two neighboring receiving coil in the Phase Receiver coil 2 of 2 Phase Receiver coil the 2, the 2nd is sequentially connected in series by different name end；
The width of overlapping region for single receiving coil width 1/3~1/2 between.
In present embodiment, rationally the size of design receiving coil, passes through the partly overlapping mode of receiving coil so that two
The coefficient of coup between Phase Receiver coil is zero, this to be referred to as certainly by way of spatial relation realizes that coil removes coupling
Decoupling, two-phase receiving coil may be simultaneously operated in resonant condition without influencing each other.When low-power energy is transmitted, flat board magnetic core
It can save.
In practical application, realize from the lap width of decoupling by coil dimension and structure, magnetic core size and structure with
And their locus influence, it is typically only possible by finite element emulation software emulation and actual measurement is obtained.
Figure 12 is the structural representation of different name end series connection between two receiving coils；Figure 13 is same between two receiving coils
The structural representation of name end series connection.
According to the content of the record in Figure 12 and Figure 13, setting tool has mutual inductance to be M, inductance respectively L1And L2Two reception
Coil, if the different name end of two receiving coils is connected, that is, when making positive series connection (series connection drop-over), its equivalent inductance L=L1+L2+
2M；If the Same Name of Ends of two receiving coils is connected, that is, when making anti-phase series connection (series connection reversal connection), equivalent inductance L=L1+L2-2M。
Counted from side, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and 2n-1
The two neighboring receiving coil that receiving coil is constituted in the 1st Phase Receiver coil 1, the 1st Phase Receiver coil 1 is concatenated by different name end；
It can be expressed as：Counted from side, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and 2n-1
Receiving coil the 1st Phase Receiver coil 1 of composition, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and
The 2n-1 receiving coil makees positive series connection successively.
2nd receiving coil, the 4th receiving coil, the 6th receiving coil ... ..., and the 2n receiving coil composition the
Two neighboring receiving coil in the Phase Receiver coil 2 of 2 Phase Receiver coil the 2, the 2nd is sequentially connected in series by different name end；Also it can be expressed as：The
2 receiving coils, the 4th receiving coil, the 6th receiving coils ... ..., and the 2n receiving coil composition the 2nd connect take-up
The 2, the 2nd receiving coil, the 4th receiving coil, the 6th receiving coil ... ... are enclosed, and the 2n receiving coil makees forward direction successively
Series connection.
Embodiment two, present embodiment are that the mobile transporting equipment that is applied to described in embodiment one is wirelessly supplied
The coil of electricity is further illustrated from decoupling two-phase reception device, in present embodiment, the centre-to-centre spacing of two neighboring receiving coil
From 1/ that D is the centre distance for decoupling the two neighboring magnetic pole in the ambipolar power supply rail of two-phase reception device cooperation certainly with coil
2。
Embodiment three, present embodiment are that the mobile transporting equipment that is applied to described in embodiment one is wirelessly supplied
The coil of electricity is from further illustrating for two-phase reception device is decoupled, and in present embodiment, the size of flat board magnetic core, which is completely covered, to be connect
Vacant position in the middle of take-up circle.
On the one hand magnetic core influences the self-induction of receiving coil, on the other hand can also influence the coupling between receiving coil and transmitting coil
The vacant position in the middle of receiving coil need to be completely covered in the size of magnetic core in conjunction degree, reception device, ensure that receiving coil
With enough self-inductances, while the coefficient of coup of receiving coil and transmitting coil is larger.
Embodiment four, present embodiment are that the mobile transporting equipment that is applied to described in embodiment one is wirelessly supplied
The coil of electricity is from further illustrating for two-phase reception device is decoupled, and in present embodiment, receiving coil uses LITZ lines or many
Strand insulation enamel-covered wire coiling.
LITZ lines are litz wire or Litz wire.
Embodiment five, reference picture 9, Figure 10 and Figure 11 illustrate present embodiment, and present embodiment is to embodiment party
Coil the further illustrating from decoupling two-phase reception device for being applied to mobile transporting equipment wireless power described in formula one, this reality
Apply in mode, coil is used cooperatively from two-phase reception device is decoupled with ambipolar power supply rail, complete wireless power；It is ambipolar to supply
Electric rail includes power cable, magnetic pole and FERRITE CORE, and magnetic pole is located on FERRITE CORE, and power cable is wrapped in magnetic pole
On, and the magnetic direction on adjacent pole is opposite；Transmitting coil is connected with primary compensation capacitor, is carried out using high frequency inverter
Power supply；
It also includes the 1st phase resonance compensating electric capacity 5, the 2nd phase resonance compensating electric capacity 6 and two rectifier bridges 3；
1st Phase Receiver coil 1 is connected with the 1st phase resonance compensating electric capacity 5, and the 1st phase resonance compensating electric capacity 5 connects a rectification
Bridge 3；
2nd Phase Receiver coil 2 is connected with the 2nd phase resonance compensating electric capacity 6, and it is whole that the 2nd phase resonance compensating electric capacity 6 connects another
Flow bridge 3；
Two rectifier bridges 3 are received from decoupling two-phase as the coil applied to mobile transporting equipment wireless power after concatenating and filled
The output end put.
As shown in Figure 9 and Figure 10, being applied to described in present embodiment moves the coil of transporting equipment wireless power certainly
It is receiving terminal to decouple two-phase reception device；Ambipolar power supply rail is transmitting terminal；Pass through magnetic field coupling between transmitting terminal and receiving terminal
Cooperation is with realizing being wirelessly transferred for electric energy.
As shown in Figure 9 and Figure 10, in ambipolar power supply rail on adjacent pole magnetic direction on the contrary, power cable is wrapped in
On magnetic pole.Acted between transmitting terminal and receiving terminal by magnetic coupling during realizing being wirelessly transferred of electric energy, the electricity of alternation
Stream produces the magnetic field of alternation opposite in real time by power cable on adjacent magnetic pole, and transmitting terminal passes through magnetic field coupling with receiving terminal
Cooperation use can realize being wirelessly transferred for electric energy.
Receiving terminal realizes that the operation principle being wirelessly transferred of electric energy is with transmitting terminal by magnetic coupling effect：
High frequency alternating current is by the power cable in transmitting terminal, in transmitting terminal under the constraint of double field structure guide rails,
High-frequency alternating magnetic field is formed above guide rail, the receiving terminal directly over transmitting terminal guide rail and transmitting terminal formation magnetic coupling,
Induce electric current in the receiving coil of receiving terminal, by reasonably designing coil and circuit structure, the magnetic core of receiving terminal with it is double
The magnetic pole formation magnetic loop of polar form power supply rail (transmitting terminal), realizing receiving terminal, optional position can be efficiently above power supply rail
Progress electric energy be wirelessly transferred.
Claims (3)
1. the coil applied to mobile transporting equipment wireless power is received from two-phase reception device, the coil is decoupled from two-phase is decoupled
Device coordinates ambipolar power supply rail to realize wireless power transmission；Ambipolar power supply rail includes power cable, magnetic pole and iron oxygen
Body magnetic core, magnetic pole is located on FERRITE CORE, and power cable is wrapped on magnetic pole, and the magnetic direction on adjacent pole is opposite；
Transmitting coil is connected with primary compensation capacitor, is powered using high frequency inverter；Characterized in that, it includes one flat plate
Magnetic core (4) and 2n receiving coil, n are more than or equal to 1；
2n receiving coil tiles along actual motion direction arrange successively, and the front end of latter receiving coil is pressed in previous reception
The rear end of coil, and overlapping region is wide, 2n receiving coil after tiling is placed on the upper surface of flat board magnetic core (4)；And it is flat
Plate magnetic core (4) at least covers the region that the inward flange of 2n receiving coil is surrounded；
Counted from side, the 1st receiving coil, the 3rd receiving coil, the 5th receiving coil ... ..., and the 2n-1 reception
The two neighboring receiving coil that coil is constituted in the 1st Phase Receiver coil (1), the 1st Phase Receiver coil (1) is gone here and there successively by different name end
Connect；
2nd receiving coil, the 4th receiving coil, the 6th receiving coil ... ..., and the 2n receiving coil constitute the 2nd phase
Two neighboring receiving coil in receiving coil (2), the 2nd Phase Receiver coil (2) is sequentially connected in series by different name end；
The width of overlapping region for single receiving coil width 1/3~1/2 between；
It also includes the 1st phase resonance compensating electric capacity (5), the 2nd phase resonance compensating electric capacity (6) and two rectifier bridges (3)；
1st Phase Receiver coil (1) is connected with the 1st phase resonance compensating electric capacity (5), and the 1st phase resonance compensating electric capacity (5) connection one is whole
Flow bridge (3)；
2nd Phase Receiver coil (2) is connected with the 2nd phase resonance compensating electric capacity (6), and the 2nd phase resonance compensating electric capacity (6) connects another
Rectifier bridge (3)；
Two-phase reception device is decoupled certainly as the coil applied to mobile transporting equipment wireless power after two rectifier bridge (3) concatenations
Output end.
2. the coil according to claim 1 for being applied to mobile transporting equipment wireless power is from decoupling two-phase reception device,
Characterized in that, the centre distance D of two neighboring receiving coil is to decouple the ambipolar of two-phase reception device cooperation certainly with coil
The 1/2 of the centre distance of two neighboring magnetic pole in power supply rail.
3. the coil according to claim 1 for being applied to mobile transporting equipment wireless power is from decoupling two-phase reception device,
Characterized in that, receiving coil uses LITZ lines or multiply enamel insulated wire coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018641.0A CN105406610B (en) | 2015-12-29 | 2015-12-29 | Coil applied to mobile transporting equipment wireless power decouples two-phase reception device certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018641.0A CN105406610B (en) | 2015-12-29 | 2015-12-29 | Coil applied to mobile transporting equipment wireless power decouples two-phase reception device certainly |
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| CN105406610A CN105406610A (en) | 2016-03-16 |
| CN105406610B true CN105406610B (en) | 2017-11-03 |
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