CN208118974U - A kind of electric car fast wireless charging system based on graphene - Google Patents
A kind of electric car fast wireless charging system based on graphene Download PDFInfo
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- CN208118974U CN208118974U CN201820271364.7U CN201820271364U CN208118974U CN 208118974 U CN208118974 U CN 208118974U CN 201820271364 U CN201820271364 U CN 201820271364U CN 208118974 U CN208118974 U CN 208118974U
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- graphene
- bucking coil
- wireless charging
- side bucking
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Abstract
The utility model discloses a kind of electric car fast wireless charging system based on graphene, the utility model replace copper wire to be wound iron core using cable made of graphene, reduce resistance value, increase electric current, promote quality factor.High magnetic permeability is improved, in the case that magnetic field strength remains unchanged, induction level depends on the lesser coercivity of magnetic conductivity and residual magnetic flux density, material it is smaller, indicate 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 utility model is blended by high energy storage grapheme material with wireless charging, and tradition research and development barrier, using and developing and provide new mode for wireless electric automobile are broken through.
Description
Technical field
The utility model belongs to graphene wireless charging field, and in particular to a kind of electric car based on graphene is quick
Wireless charging system.
Background technique
Energy crisis and environmental problem are increasingly valued by people, electric car with its energy-saving and environmental protection, low noise,
The advantages that zero-emission, has been favored by people, while the advantage that there is wireless charging technology contact charging cannot compare, because
This is more in line with the development trend of future society to electric car using wireless charging technology.
The charging modes of electric car are divided into wired charging and wireless charging.Wired charging easily produces 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 to power grid impact.Utilize wireless charging
Hommization, intelligence may be implemented in power technology, while also solving the problem of contact charging is in terms of security maintenance.
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 car wireless charging technology both at home and abroad essentially consists in the research and optimization, magnetic coupling of charging circuit at present
It closes the optimization of wireless energy transfer distance and reduces the research etc. of electric energy loss.The utility model is based on the electronic of graphene
Automobile fast wireless charging system and working method are that existing charging problem is overcome by the use of graphene new material, such as：
Electric car single charge is continued a journey, and milimeter number is smaller, conventional radio transmission is inefficient, transmission time is longer, high-speed travel state
The problems such as can not charging.
Utility model content
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of electric car fast wireless based on graphene
Charging system improves conventional wireless charge efficiency, reduces the charging time.
In order to achieve the above object, the utility model includes being placed in the graphene pair side bucking coil of vehicle interior and being placed in
Beneath graphene primary side bucking coil, graphene pair side bucking coil connect battery pack, and battery pack connects motor, and graphene is former
Side bucking coil connects common frequency power network；
Black alkene primary side bucking coil and graphene pair side bucking coil are all made of graphene winding iron core；
Black alkene primary side bucking coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generates
Incude AC power source；
Black alkene pair side bucking coil is used to receive the induction alternating voltage in black alkene primary side bucking coil, and resonance occurs.
Graphene pair side bucking coil connects AC/DC module, and AC/DC module connects battery pack.
Common frequency power network connects AC/DC module, and AC/DC module connects DC/AC module, and DC/AC module connects graphene primary side
Bucking coil.
DC/AC module connects resonance compensation module, and resonance compensation module connects graphene primary side bucking coil, resonance compensation
Module keeps phase frequency unified for adjusting frequency.
Graphene pair side bucking coil connects telescopic device.
Battery pack uses graphene battery group.
Compared with prior art, the utility model replaces copper wire to be wound iron core using cable made of graphene, subtracts
Small resistance value increases electric current, promotes quality factor.High magnetic permeability is improved, in the case that magnetic field strength remains unchanged, magnetic induction is strong
It spends size and depends on the lesser coercivity of magnetic conductivity and residual magnetic flux density, smaller, expression magnetization and the demagnetization capability of material
By force, hysteresis loop is narrower, then the loss in alternating magnetic field is with regard to smaller；High resistivity is improved, in high-frequency alternating magnetic field
The magnetic core of work has profit stream loss, and resistivity height can reduce the size of profit stream loss；Saturation induction density is improved, is made
Magnetic core area, device volume become smaller.The utility model is blended by high energy storage grapheme material with wireless charging, is broken through and is passed
System research and development barrier, using and developing new mode is provided for wireless electric automobile.
Further, the utility model replaces traditional lithium battery using graphene battery group, utilizes graphene surface and electricity
The characteristic of rapid, high volume shuttle between pole, uses graphene as the anode material of battery, and charge/discharge speed will be more than
10 times of lithium-ions battery, and charging can run 1000 kilometers in 10 minutes.So in the effective service life of automobile, it is only necessary to
Charging tens of times arbitrarily to drive, and do not limited by milimeter number.
Further, the graphene pair side bucking coil of the utility model is connected with telescopic device, can be stopped according to difference
Parking stall is adjusted at a distance from primary side bucking coil, is solved and is changed magnetic-coupled transmittability because charging environment is different.
Detailed description of the invention
Fig. 1 is the system block diagram of the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1, the utility model includes the stone under being placed in the graphene pair side bucking coil of vehicle interior and being placed in
Black alkene primary side bucking coil, graphene pair side bucking coil connect telescopic device, and graphene pair side bucking coil connects AC/DC mould
Block, AC/DC module connect graphene battery group, and graphene battery group connects motor, and common frequency power network connects AC/DC module, AC/DC
Module connects DC/AC module, and DC/AC module connects resonance compensation module, and resonance compensation module connects graphene primary side compensating line
Circle, resonance compensation module keep phase frequency unified for adjusting frequency.
Black alkene primary side bucking coil and graphene pair side bucking coil are all made of graphene winding iron core；Black alkene primary side compensation
Coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generates induction AC power source；Black alkene pair
Side bucking coil is used to receive the induction alternating voltage in black alkene primary side bucking coil, and resonance occurs.
In use, direct current is converted alternating current to by AC/DC module, using DC/ by common frequency power network input current
AC module inversion is converted into high-frequency ac, unifies phase frequency by resonance compensation module, by graphene primary side bucking coil
High-frequency ac is generated into alternating magnetic field in space, graphene pair side bucking coil incudes alternating voltage and resonance occurs, then leads to
It crosses AC/DC module high-frequency ac rectification is converted to direct current and charges to graphene battery group, graphene battery group is motor
It is powered, vehicle driving power 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；
The L when coupling coil uses graphene1And L2Coil current is almost equal, so m=1；
I.e.：
And be 90 ° of L1 and L2 difference 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 devices for electric vehicle operation, can biology to surrounding and electronic equipment have an impact,
It can even be detrimental to health, be very sensitive topic talking today of radiation discoloration.The utility model solves how to optimize
Electric motor car wireless charging realizes the electromagnetic radiation in engineering process, and the utility model is because use the high energy storage electricity of graphene
Charging times are greatly reduced in pond group, to reduce the runing time of coupling coil, mitigate radiation of the electromagnetism to people and biology.
Claims (6)
1. a kind of electric car fast wireless charging system based on graphene, which is characterized in that including being placed in vehicle interior
Graphene pair side bucking coil connects battery with beneath graphene primary side bucking coil, graphene pair side bucking coil is placed in
Group, battery pack connect motor, and graphene primary side bucking coil connects common frequency power network；
Black alkene primary side bucking coil and graphene pair side bucking coil are all made of graphene winding iron core；
Black alkene primary side bucking coil is used to the high-frequency ac in transmitting coil generating alternating magnetic field in space, and generates induction
AC power source；
Black alkene pair side bucking coil is used to receive the induction alternating voltage in black alkene primary side bucking coil, and resonance occurs.
2. a kind of electric car fast wireless charging system based on graphene according to claim 1, which is characterized in that
Graphene pair side bucking coil connects AC/DC module, and AC/DC module connects battery pack.
3. a kind of electric car fast wireless charging system based on graphene according to claim 1, which is characterized in that
Common frequency power network connects AC/DC module, and AC/DC module connects DC/AC module, and DC/AC module connects graphene primary side bucking coil.
4. a kind of electric car fast wireless charging system based on graphene according to claim 3, which is characterized in that
DC/AC module connects resonance compensation module, and resonance compensation module connects graphene primary side bucking coil, and resonance compensation module is used for
Adjusting frequency keeps phase frequency unified.
5. a kind of electric car fast wireless charging system based on graphene according to claim 1, which is characterized in that
Graphene pair side bucking coil connects telescopic device.
6. a kind of electric car 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 |
|---|---|---|---|
| CN201820271364.7U CN208118974U (en) | 2018-02-26 | 2018-02-26 | A kind of electric car fast wireless charging system based on graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820271364.7U CN208118974U (en) | 2018-02-26 | 2018-02-26 | A kind of electric car fast wireless charging system based on graphene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208118974U true CN208118974U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820271364.7U Expired - Fee Related CN208118974U (en) | 2018-02-26 | 2018-02-26 | A kind of electric car fast wireless charging system based on graphene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248441A (en) * | 2018-02-26 | 2018-07-06 | 西安科技大学 | A kind of electric vehicle fast wireless charging system based on graphene |
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2018
- 2018-02-26 CN CN201820271364.7U patent/CN208118974U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248441A (en) * | 2018-02-26 | 2018-07-06 | 西安科技大学 | A kind of electric vehicle fast wireless charging system based on graphene |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20190226 |