CN108248441A - A kind of electric vehicle fast wireless charging system based on graphene - Google Patents
A kind of electric vehicle fast wireless charging system based on graphene Download PDFInfo
- Publication number
- CN108248441A CN108248441A CN201810163110.8A CN201810163110A CN108248441A CN 108248441 A CN108248441 A CN 108248441A CN 201810163110 A CN201810163110 A CN 201810163110A CN 108248441 A CN108248441 A CN 108248441A
- Authority
- CN
- China
- Prior art keywords
- graphene
- bucking coil
- wireless charging
- electric vehicle
- primary side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a kind of electric vehicle fast wireless charging system based on graphene, the present invention is wound iron core using cable made of graphene instead of copper wire, reduces resistance value, increases electric current, promotes quality factor.High magnetic permeability is improved, in the case that magnetic field intensity remains unchanged, induction level depends on the smaller coercivity of magnetic conductivity and residual magnetic flux density, material it is smaller, represent that magnetization and demagnetization capability are strong, hysteresis loop is narrower, then the loss in alternating magnetic field is with regard to smaller；High resistivity is improved, the magnetic core to work in high-frequency alternating magnetic field has profit stream loss, and resistivity height can reduce the size of profit stream loss；Saturation induction density is improved, the volume of magnetic core area, device is made to become smaller.The present invention is blended by high energy storage grapheme material with wireless charging, breaks through tradition research and development barrier, using and developing and provide new mode for wireless electric automobile.
Description
Technical field
The invention belongs to graphene wireless charging fields, and in particular to a kind of electric vehicle fast wireless based on graphene
Charging system.
Background technology
Energy crisis and environmental problem are increasingly valued by people, electric vehicle with its energy-saving and environmental protection, low noise,
The advantages that zero-emission, has been favored by people, while wireless charging technology has the advantage that contact charging cannot compare, because
This is more in line with electric vehicle using wireless charging technology the development trend of future society.
The charging modes of electric vehicle are divided into wired charging and wireless charging.Wired charging is easily produced in electric energy transmission process
Light a fire flower, influence service life and the safety of electrical equipment, at the same it is difficult in maintenance, flexibility is poor, filled under the adverse circumstances such as sleet
It is electric difficult.And wireless charging has higher flexibility and stability, can reduce the influence impacted to power grid.Utilize wireless charging
Power technology can realize hommization, intelligence, while also solve contact charging in terms of security maintenance the problem of.
However as going deep into for research, many critical issues need to solve with bottleneck, and the solution of these problems is for dynamic
The development of wireless power technology has guiding effect, such as magnetic coupling design and optimization, promotes transmission quality factor, electromagnetism
Compatible technique and energy transmission robust control technique etc..
The research of electric vehicle wireless charging technology essentially consists in the research of charging circuit and optimization, magnetic coupling both at home and abroad at present
Close research of optimization and reduction electric energy loss of wireless energy transfer distance etc..The present invention is the electric vehicle based on graphene
Fast wireless charging system and method for work are to overcome existing charging problem by the use of graphene new material, such as：It is electronic
Automobile single charge continuation of the journey milimeter number it is smaller, conventional radio transmission is inefficient, transmission time is longer, high-speed travel state can not
The problems such as charging.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of electric vehicle fast wireless chargings based on graphene
System improves conventional wireless charge efficiency, reduces the charging time.
In order to achieve the above object, the present invention includes being placed in the graphene secondary bucking coil of vehicle interior and be placed in beneath
Graphene primary side bucking coil, graphene secondary bucking coil connection battery pack, battery pack connection motor, graphene primary side mend
Repay coil connection common frequency power network；
Black alkene primary side bucking coil and graphene secondary bucking coil wind iron core using graphene；
Black alkene primary side bucking coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generate
Sense AC power；
Black alkene secondary bucking coil is used to receive the sensing alternating voltage in black alkene primary side bucking coil, and resonance occurs.
Graphene secondary bucking coil connects AC/DC modules, AC/DC modules connection battery pack.
Common frequency power network connects AC/DC modules, AC/DC modules connection DC/AC modules, DC/AC modules connection graphene primary side
Bucking coil.
DC/AC modules connect resonance compensation module, resonance compensation module connection graphene primary side bucking coil, resonance compensation
Module keeps phase frequency unified for adjusting frequency.
Graphene secondary bucking coil connects telescopic device.
Battery pack uses graphene battery group.
Compared with prior art, the present invention is wound iron core using cable made of graphene instead of copper wire, reduces resistance
Value increases electric current, promotes quality factor.High magnetic permeability is improved, in the case that magnetic field intensity remains unchanged, magnetic induction intensity is big
It is small depend on the smaller coercivity of magnetic conductivity and residual magnetic flux density, material it is smaller, represent magnetization and demagnetization capability it is strong, magnetic
Hysteresis curves are narrower, then the loss in alternating magnetic field is with regard to smaller；High resistivity is improved, is worked in high-frequency alternating magnetic field
Magnetic core has profit stream loss, and resistivity height can reduce the size of profit stream loss；Saturation induction density is improved, makes core plan
Product, the volume of device become smaller.The present invention is blended by high energy storage grapheme material with wireless charging, breaks through tradition research and development wall
It builds, using and developing new mode is provided for wireless electric automobile.
Further, the present invention replaces traditional lithium battery using graphene battery group, using graphene surface and electrode it
Between rapid, high volume shuttle characteristic, using graphene as the anode material of battery, charge/discharge rates will be more than lithium from
10 times of sub- accumulator, and charging can run 1000 kilometers in 10 minutes.So in the effective service life of automobile, it is only necessary to charge
It is tens of time arbitrarily to drive, it is not limited by milimeter number.
Further, graphene secondary bucking coil of the invention is connected with telescopic device, can be according to different parking stalls
The distance with primary side bucking coil is adjusted, solves and changes magnetic-coupled transmittability because charging environment is different.
Description of the drawings
Fig. 1 is the system block diagram of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, the present invention includes being placed in the graphene secondary bucking coil of vehicle interior and is placed in beneath graphene
Primary side bucking coil, graphene secondary bucking coil connection telescopic device, graphene secondary bucking coil connection AC/DC modules,
AC/DC modules connect graphene battery group, graphene battery group connection motor, common frequency power network connection AC/DC modules, AC/DC moulds
Block connects DC/AC modules, DC/AC modules connection resonance compensation module, and resonance compensation module connects graphene primary side bucking coil,
Resonance compensation module keeps phase frequency unified for adjusting frequency.
Black alkene primary side bucking coil and graphene secondary bucking coil wind iron core using graphene；Black alkene primary side compensation
Coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generate sensing AC power；Black alkene pair
Side bucking coil is used to receive the sensing alternating voltage in black alkene primary side bucking coil, and resonance occurs.
In use, by common frequency power network input current, alternating current is converted into direct current by AC/DC modules, using DC/
AC module inversions are converted into high-frequency ac, unify phase frequency by resonance compensation module, by graphene primary side bucking coil
High-frequency ac is generated into alternating magnetic field in space, resonance, Ran Houtong occur for graphene secondary bucking coil sensing alternating voltage
It crosses AC/DC modules high-frequency ac rectification is converted into direct current and charge to graphene battery group, graphene battery group is motor
It is powered, vehicle driving dynamics is provided.
Verification method is as follows：
Wherein, k is coil L1With coil L2Between the coefficient of coup, m is variableI1And I2For coil
The electric current of L1 and L2, M are the ratio of coil L1 and L2；
When coupling coil use graphene when L1And L2Coil current is almost equal, so m=1；
I.e.：
And be 90 ° of L1 and L2 differences when coefficient of coup maximum, therefore：Coil
Quality factor are：
The efficiency of transmission of so coil is：
Wherein, Q1And Q2For coil L1 and L2 efficiency of transmission, n is coil L1 and L2 resistance ratios, introduces variableR1
And R2For L1 and L2 resistance；
I.e.：
So, it is seen that ψ can be made as bucking coil using graphenemax=1, that is, improve the coupled transfer between coil
Efficiency.
When a large amount of wireless charging device operations used for electric vehicle, the biology and electronic equipment of surrounding can be had an impact,
It can even be detrimental to health, be very sensitive topic in the today for talking radiation discoloration.The present invention solve how to optimize it is electronic
The electromagnetic radiation in engineering process is realized in vehicle radio charging, and the present invention is because using the high energy-storage battery group of graphene substantially
Degree reduces charging times, so as to reduce the run time of coupling coil, mitigates radiation of the electromagnetism to people and biology.
Claims (6)
1. a kind of electric vehicle fast wireless charging system based on graphene, which is characterized in that including being placed in vehicle interior
Graphene secondary bucking coil connects battery with beneath graphene primary side bucking coil, graphene secondary bucking coil is placed in
Group, battery pack connection motor, graphene primary side bucking coil connection common frequency power network；
Black alkene primary side bucking coil and graphene secondary bucking coil wind iron core using graphene；
Black alkene primary side bucking coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generate sensing
AC power；
Black alkene secondary bucking coil is used to receive the sensing alternating voltage in black alkene primary side bucking coil, and resonance occurs.
2. a kind of electric vehicle fast wireless charging system based on graphene according to claim 1, which is characterized in that
Graphene secondary bucking coil connects AC/DC modules, AC/DC modules connection battery pack.
3. a kind of electric vehicle fast wireless charging system based on graphene according to claim 1, which is characterized in that
Common frequency power network connects AC/DC modules, AC/DC modules connection DC/AC modules, DC/AC modules connection graphene primary side bucking coil.
4. a kind of electric vehicle fast wireless charging system based on graphene according to claim 3, which is characterized in that
DC/AC modules connect resonance compensation module, resonance compensation module connection graphene primary side bucking coil, and resonance compensation module is used for
Adjusting frequency keeps phase frequency unified.
5. a kind of electric vehicle fast wireless charging system based on graphene according to claim 1, which is characterized in that
Graphene secondary bucking coil connects telescopic device.
6. a kind of electric vehicle fast wireless charging system based on graphene according to claim 1, which is characterized in that
Battery pack uses graphene battery group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163110.8A CN108248441A (en) | 2018-02-26 | 2018-02-26 | A kind of electric vehicle fast wireless charging system based on graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163110.8A CN108248441A (en) | 2018-02-26 | 2018-02-26 | A kind of electric vehicle fast wireless charging system based on graphene |
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| Publication Number | Publication Date |
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| CN108248441A true CN108248441A (en) | 2018-07-06 |
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| CN201810163110.8A Pending CN108248441A (en) | 2018-02-26 | 2018-02-26 | A kind of electric vehicle fast wireless charging system based on graphene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067011A (en) * | 2018-08-20 | 2018-12-21 | 中国地质大学（武汉） | Graphite ene-type superconduction wirelessly transmitting electrical energy aircraft and sensor array system |
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|---|---|---|---|---|
| CN102751773A (en) * | 2012-07-10 | 2012-10-24 | 上海市电力公司 | Wireless charging system for electric automobile |
| TW201501445A (en) * | 2014-09-04 | 2015-01-01 | Chwen Yu | Wireless charging receiver |
| CN106560905A (en) * | 2016-05-09 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging loose coupling transformer and vehicle wireless charging device |
| CN106564392A (en) * | 2016-07-01 | 2017-04-19 | 中兴新能源汽车有限责任公司 | Automobile wireless charging system and automobile wireless charging device |
| CN206163493U (en) * | 2016-10-31 | 2017-05-10 | 昆山工研院新型平板显示技术中心有限公司 | OLED display device |
| CN208118974U (en) * | 2018-02-26 | 2018-11-20 | 西安科技大学 | A kind of electric car fast wireless charging system based on graphene |
-
2018
- 2018-02-26 CN CN201810163110.8A patent/CN108248441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751773A (en) * | 2012-07-10 | 2012-10-24 | 上海市电力公司 | Wireless charging system for electric automobile |
| TW201501445A (en) * | 2014-09-04 | 2015-01-01 | Chwen Yu | Wireless charging receiver |
| CN106560905A (en) * | 2016-05-09 | 2017-04-12 | 中兴新能源汽车有限责任公司 | Wireless charging loose coupling transformer and vehicle wireless charging device |
| CN106564392A (en) * | 2016-07-01 | 2017-04-19 | 中兴新能源汽车有限责任公司 | Automobile wireless charging system and automobile wireless charging device |
| CN206163493U (en) * | 2016-10-31 | 2017-05-10 | 昆山工研院新型平板显示技术中心有限公司 | OLED display device |
| CN208118974U (en) * | 2018-02-26 | 2018-11-20 | 西安科技大学 | A kind of electric car fast wireless charging system based on graphene |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067011A (en) * | 2018-08-20 | 2018-12-21 | 中国地质大学（武汉） | Graphite ene-type superconduction wirelessly transmitting electrical energy aircraft and sensor array system |
| CN109067011B (en) * | 2018-08-20 | 2023-08-29 | 中国地质大学（武汉） | Graphene type superconductive wireless transmission electric energy aircraft and sensor array system |
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