CN108923476A - A kind of electric car direct current wireless charging system - Google Patents
A kind of electric car direct current wireless charging system Download PDFInfo
- Publication number
- CN108923476A CN108923476A CN201810551795.3A CN201810551795A CN108923476A CN 108923476 A CN108923476 A CN 108923476A CN 201810551795 A CN201810551795 A CN 201810551795A CN 108923476 A CN108923476 A CN 108923476A
- Authority
- CN
- China
- Prior art keywords
- direct current
- module
- vehicle
- power supply
- electric car
- 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.)
- Pending
Links
- 238000007600 charging Methods 0.000 title claims abstract description 54
- 230000009466 transformation Effects 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 10
- 230000005284 excitation Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H02J7/025—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of electric car direct current wireless charging systems, including energy emitting device and vehicle-mounted energy reception device, energy emitting device includes being arranged in underground or overhead direct-flow magnet exciting coil and direct current supply module, direct current supply module connect to form D.C. magnetic field with direct-flow magnet exciting coil, vehicle-mounted energy reception device includes vehicle-mounted receiving coil, generates induced electromotive force as vehicle moves in D.C. magnetic field as Vehicular charging.Energy transmitting end saves the high-frequency inversion unit of transmitting terminal by the way of direct current supply, greatly reduces the design and producing difficulty of equipment, and designing and producing cost can also decline, and maintenance requirement can also reduce；And facilitate using new energy power supply as external power supply, the advantages of new energy resources system can not only be played, improves the utilization rate of new energy, and new energy power supply is directly connect with energy emitting device, it not only reduces cost, also reduce loss, power supply is flexible.
Description
Technical field
The invention belongs to wireless charging technical field, in particular to a kind of electric car direct current wireless charging system.
Background technique
It is more serious with recent environmental problems, the motor vehicle exhaust emission pollution sources important as one also more by
The attention of people copes with heavily contaminated weather to administer haze, and vehicle restriction has been extended to 3 lines, 4 line cities, therefore, newly
Attention of the development of energy automobile increasingly by countries in the world.The appearance of electric car can not only very good solution tail gas row
Problem is put, and the effect for saving fossil energy can be played simultaneously after new energy is added, however, with the hair of electric car
Exhibition, more and more limiting factors have also shown simultaneously to be come out.The cost of the fuel vehicle of same platform is than electronic vapour on the same stage
Car fare lattice are several times lower than, even still more expensive than fuel vehicle nearly 1 times of electric car after public subsidies.And when electric car stores
Electricity use after will arrive specified place charging, therefore it is necessary to building a large amount of electrically-charging equipments, take up a large area, and
And even at fast charge station, the charging time is still very long, causes course continuation mileage short, limits just because of above-mentioned various reasons
The popularization of electric car popularize electric car can not quickly.
Offer the possibility to solve the above problem, wireless charging is not restricted wireless charging technology by conducting wire, interface factor,
Various occasions can flexibly be applied.Compared with traditional contact charging technique, wireless charging has some remarkable advantages：1. moving
It is dynamic flexible, allow electrical equipment to move freely in a certain range.2. environment adapts to by force, avoid the presence of bare exposed conductor and connect
The generation for touching spark, is applicable to a variety of adverse circumstances and weather.3. avoiding the requirement of unified physics interface standard.Electronic vapour
Vehicle radio charging technique will greatly increase convenience, flexibility and the safety of charging, promote the usage experience of electric car.
Therefore, using wireless charging can overcome electric car existing electric automobile during traveling mileage end, it is at high cost, charging when
Between long disadvantage, to provide a feasible scheme for the universal of electric car.Especially popular at present is electronic
Mobile wireless charging in vehicle traveling process is set about studying by many countries, and also there are many mobile wireless of type to charge
Scheme is suggested and during carrying out experimental verification, but current wireless power mode is all with transmitting terminal by generating friendship
It flows the form of electromagnetic field of high frequency and receiving end carries out coupling transmitting energy.Such as Publication No. " CN103633697A ", entitled " electricity
The Chinese patent of magnetic inductive non-contact charger systems and its alignment methods " discloses a kind of scheme of mobile wireless charging, packet
Ground electric energy transmission device and vehicle-mounted electric energy reception device are included, vehicle-mounted electric energy reception device includes display module, the control of vehicle-mounted part
Device, in-vehicle wireless communication module, vehicle-mounted electric energy receiving module, battery and vehicle-mounted receiving coil processed；Ground electric energy transmission device packet
Include drive module, above ground portion controller, terrestrial wireless communication module, ground electric energy transmitting module and transmitting coil, wherein ground
Face electric energy transmitting module generates high frequency alternating electromagnetic field based on high-frequency inversion and is then sent to reception by way of electromagnetic coupling
End carries out energy transmission, but since high-frequency inversion needs to become by exchange then process that direct current becomes high-frequency ac, warp
Crossing multiple process efficiencies can decline, and alternating electromagnetism station control system is complicated, at high cost, installation maintenance is inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of electric car direct current wireless charging systems, adopt in the prior art for solving
It is the problem that electric car wireless charging causes that charging system is complicated, at high cost and inconvenient installation maintenance with alternating magnetic field.
To achieve the above object, the present invention provides a kind of electric car direct current wireless charging systems, including energy transmitting
Device and vehicle-mounted energy reception device, the energy emitting device include being arranged in underground or overhead direct-flow magnet exciting coil and use
In the direct current supply module powered for the direct-flow magnet exciting coil, the direct current supply module is connect with the direct-flow magnet exciting coil
D.C. magnetic field is formed, the vehicle-mounted energy reception device includes the vehicle-mounted receiving coil for being arranged on vehicle, with vehicle
It is Vehicular charging that movement, which generates induced electromotive force, in the D.C. magnetic field.
In order to solve the problems, such as that mode for coil power supply is single and in order to solve voltage that energy emitting device provides not
The problem of being able to satisfy the requirement of Vehicular charging voltage, the direct current supply module include the power interface for connecting external power supply
And voltage transformation module, the power interface are connect with the voltage transformation module, the voltage transformation module and the direct current
Magnet exciting coil connection.Different types of power supply can be used for coil power supply, and can requirement according to vehicle to charging voltage
The voltage provided energy emitting device is converted, and the charging of variety classes vehicle is met.
When the external power supply of connection is DC power supply, the voltage transformation module includes DC/DC module and control module,
The control module is used to control the charging voltage that the DC/DC module output vehicle needs.
When the external power supply of connection is AC power source, the voltage transformation module includes AC/DC module and control module,
The control module is used to control the charging voltage that the AC/DC module output vehicle needs.
In order to avoid occurring to there is the problem of interruptedly supplying power when Vehicular charging, the direct-flow magnet exciting coil is at least two
A, each direct-flow magnet exciting coil is connected by the way of serial or parallel connection, is realized to vehicle reliably lasting power supply.
In order to avoid occurring being that direct-flow magnet exciting coil the problem of interruptedly supplying power occurs when powering, the direct current supply module is
At least two, each direct current supply module can centrally connected power supply or sectional power supply, realize the reliable power supply to direct-flow magnet exciting coil.
The beneficial effects of the invention are as follows：
Electric car direct current wireless charging system of the invention, including energy emitting device and vehicle-mounted energy reception device,
Energy emitting device includes that underground or overhead direct-flow magnet exciting coil and the direct current for powering for direct-flow magnet exciting coil is arranged in
Power supply module, direct current supply module connect to form D.C. magnetic field with direct-flow magnet exciting coil, and vehicle-mounted energy reception device includes being used for
Vehicle-mounted receiving coil on vehicle is set, is filled as vehicle moves generation induced electromotive force in the D.C. magnetic field for vehicle
Electricity.Energy transmitting end is saved the high-frequency inversion unit of transmitting terminal, is thus greatly reduced equipment by the way of direct current supply
Design and producing difficulty, design and produce cost can also decline, maintenance requirement can also reduce；And facilitate using new energy
Power supply is as external power supply, the advantages of can not only playing new energy resources system, improves the utilization rate of new energy, and new energy
Power supply is directly connect with energy emitting device, then can be omitted DC/AC inversion link, is not only reduced cost, is also reduced damage
Consumption, power supply are flexible.
Detailed description of the invention
Fig. 1 is electric car direct current wireless charging operation principle schematic diagram；
Fig. 2 is the structural block diagram of single direct current supply module.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing：
In order to solve the defect of high-frequency inversion wireless power mode, the present invention provides a kind of electric car direct current wireless chargings
Electric system, electric car direct current wireless charging system include energy emitting device and vehicle-mounted energy reception device, energy transmitting dress
It sets including direct-flow magnet exciting coil and the direct current supply module for powering for direct-flow magnet exciting coil, direct current supply module is encouraged with direct current
Magnetic coil connects to form D.C. magnetic field, and vehicle-mounted energy reception device includes the vehicle-mounted receiving coil for being arranged on vehicle, with
Vehicle moved in D.C. magnetic field generate induced electromotive force be Vehicular charging.
Specifically, as shown in Figure 1 electric car direct current wireless charging system include transmitting terminal energy emitting device and
The vehicle-mounted energy reception device of receiving end, energy emitting device include at least two transmitting coils (i.e. above-mentioned DC excitation line
Circle) and at least two direct current supply modules, transmitting terminal establishes direct current in electric car movement routine using direct current supply mode
Magnetic field generates electromagnetism by the relative motion of the receiving coil on electric car and transmitting terminal in electric car moving process
Coupling, it is hereby achieved that the energy of transmitting terminal.The paving mode of transmitting coil is not limited to underground, can also make somebody a mere figurehead laying,
The present embodiment illustrates that the power supply mode of transmitting coil can use centrally connected power supply and divide so that transmitting coil is layed in underground as an example
Section power supply combines.It is direct current supply module for coil power supply, direct current supply technology circuit structure is simple, technical difficulty is low,
At low cost, maintenance is simply, design and installation simplify, and is that the wireless charging of electric car provides a great convenience, the present embodiment
Direct current supply module be it is multiple, can be convenient efficiently for electric car charge.
The direct current supply module of the present embodiment includes the power interface and voltage transformation module for connecting external power supply, electricity
Source interface is connect with voltage transformation module, and voltage transformation module is connect with transmitting coil, uses different types of power supply for coil
Power supply, and can the voltage that energy emitting device is provided of the requirement according to vehicle to charging voltage convert, meet not
With the charging of type vehicle.
Further, as shown in Fig. 2, voltage transformation module includes DC/DC module and control module, control module is for controlling
The charging voltage that DC/DC module output vehicle processed needs.Certainly, voltage transformation module also may include AC/DC module and control
Module, control module are used to control the charging voltage that AC/DC module output vehicle needs.Specifically, control module detection is external
Parameters of power supply, such as power supply natures, voltage, electric current etc., control voltage transformation module carry out being converted to DC power supply
Parameter (such as voltage, electric current).By taking single direct current supply module as an example, direct current supply module includes that the power supply of connection external power supply connects
Mouth and voltage transformation module, power interface are connect with voltage transformation module, and voltage transformation module is connect with transmitting coil.
Wherein, when external power supply is DC power supply, such as new energy distributed generation resource, new energy distributed generation resource directly with
The connection of DC/DC module, new energy distributed generation resource become controlled direct-current power supply energy transmitting by voltage transformation module
The voltage input DC/DC module of the coil of device, i.e. DC power supply output, by control module control DC/DC module output
Voltage is converted to voltage when electric car charging by the magnetic induction of transmitting coil and vehicle-mounted receiving coil.
When external power supply is AC power source, it is necessary first to convert alternating current to direct current, therefore, voltage transformation module
For AC/DC, the voltage input AC/DC module of galvanic electricity source output is exchanged, by the voltage of control module control AC/DC module output
Voltage when electric car charging is converted to by the magnetic induction of transmitting coil and vehicle-mounted receiving coil.It can be according to vehicle to filling
The voltage that the requirement of piezoelectric voltage provides energy emitting device is converted, and the charging of variety classes vehicle is met.
The present embodiment can trigger transmitting coil and vehicle-mounted receiving coil by electrical excitation mode, and no matter external power supply is to hand over
Galvanic electricity source or DC power supply, will not influence the arrangement of coil turn, and the number of turns of coil can be multiturn, be also possible to
Single turn, the connection type of each coil can be multiple coil series connection or multiple coils from parallel connection of coils, set according to specific system
Depending on meter requires.
Direct current supply module is coil continual power supply generation D.C. magnetic field, vehicle-mounted when vehicle travels on road surface
Receiving coil and transmitting coil generate magnetic induction, and according to electromotive force principle, receiving end length is the conductor of L, with speed v in magnetic strength
When answering intensity to do cutting magnetic induction line movement in the magnetic field of B, induced electromotive force can be generated in conductor, size is：E=
BLvsinθ.In the process, the power supply using DC power supply as transmitting coil, transmitting coil provide D.C. magnetic field, mesh
Before, new energy distributed generation resource (such as wind-powered electricity generation and photovoltaic) application is relatively broad, so, using new energy distributed generation resource as this
The DC power supply of invention, the advantages of can not only playing new energy resources system, improve the utilization rate of new energy, and new energy electricity
Source is directly connect with energy emitting device, then can be omitted DC/AC inversion link, is not only reduced cost, is also reduced loss,
It is powered flexibly, as long as vehicle is travelling, vehicle-mounted receiving coil and energy transmitting coil generate coupled magnetic field, then can be achieved with
Charging to vehicle.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present invention is designed each
The model of kind deformation, formula, parameter do not need to spend creative work.The case where not departing from the principle and spirit of the invention
Under to embodiment carry out variation, modification, replacement and deformation still fall in protection scope of the present invention.
Claims (6)
1. a kind of electric car direct current wireless charging system, including energy emitting device and vehicle-mounted energy reception device, feature
It is, the energy emitting device includes setting in underground or overhead direct-flow magnet exciting coil and for being the DC excitation line
The direct current supply module of power supply is enclosed, the direct current supply module connect to form D.C. magnetic field with the direct-flow magnet exciting coil, described
Vehicle-mounted energy reception device includes the vehicle-mounted receiving coil for being arranged on vehicle, as vehicle is transported in the D.C. magnetic field
The raw induced electromotive force of movable property is Vehicular charging.
2. electric car direct current wireless charging system according to claim 1, which is characterized in that the direct current supply module
Including the power interface and voltage transformation module for connecting external power supply, the power interface and the voltage transformation module connect
It connects, the voltage transformation module is connect with the direct-flow magnet exciting coil.
3. electric car direct current wireless charging system according to claim 2, which is characterized in that the voltage transformation module
Including DC/DC module and control module, the control module is used to control the charging electricity that the DC/DC module output vehicle needs
Pressure.
4. electric car direct current wireless charging system according to claim 2, which is characterized in that the voltage transformation module
Including AC/DC module and control module, the control module is used to control the charging electricity that the AC/DC module output vehicle needs
Pressure.
5. electric car direct current wireless charging system according to claim 1-4, which is characterized in that the direct current
Magnet exciting coil is at least two, and each direct-flow magnet exciting coil is connected by the way of serial or parallel connection.
6. electric car direct current wireless charging system according to claim 5, which is characterized in that the direct current supply module
It is at least two, each direct current supply module being capable of centrally connected power supply or sectional power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551795.3A CN108923476A (en) | 2018-05-31 | 2018-05-31 | A kind of electric car direct current wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551795.3A CN108923476A (en) | 2018-05-31 | 2018-05-31 | A kind of electric car direct current wireless charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108923476A true CN108923476A (en) | 2018-11-30 |
Family
ID=64420105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810551795.3A Pending CN108923476A (en) | 2018-05-31 | 2018-05-31 | A kind of electric car direct current wireless charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103928A (en) * | 2021-05-26 | 2021-07-13 | 中车株洲电力机车研究所有限公司 | Automatic passing neutral section system, wireless electric energy transmitting and receiving device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880307A (en) * | 2012-09-29 | 2013-01-16 | 浙江大学 | Wireless mouse device without battery |
| CN103701167A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Vehicle non-stop wireless-charging device based on special road surface |
| JP2014236539A (en) * | 2013-05-31 | 2014-12-15 | 小島プレス工業株式会社 | Power transmission device for non-contact charging and travelling control system of electric vehicle |
| CN105958620A (en) * | 2016-02-21 | 2016-09-21 | 萧钠 | Off-grid charging system for electric automobile |
| CN206180639U (en) * | 2016-11-11 | 2017-05-17 | 霍晓楠 | Wireless charging system of motor vehicle |
| CN107813729A (en) * | 2017-12-08 | 2018-03-20 | 华中科技大学 | The discrimination method of charge position in a kind of electric automobile dynamic radio charging system |
-
2018
- 2018-05-31 CN CN201810551795.3A patent/CN108923476A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102880307A (en) * | 2012-09-29 | 2013-01-16 | 浙江大学 | Wireless mouse device without battery |
| JP2014236539A (en) * | 2013-05-31 | 2014-12-15 | 小島プレス工業株式会社 | Power transmission device for non-contact charging and travelling control system of electric vehicle |
| CN103701167A (en) * | 2013-12-16 | 2014-04-02 | 江苏大学 | Vehicle non-stop wireless-charging device based on special road surface |
| CN105958620A (en) * | 2016-02-21 | 2016-09-21 | 萧钠 | Off-grid charging system for electric automobile |
| CN206180639U (en) * | 2016-11-11 | 2017-05-17 | 霍晓楠 | Wireless charging system of motor vehicle |
| CN107813729A (en) * | 2017-12-08 | 2018-03-20 | 华中科技大学 | The discrimination method of charge position in a kind of electric automobile dynamic radio charging system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103928A (en) * | 2021-05-26 | 2021-07-13 | 中车株洲电力机车研究所有限公司 | Automatic passing neutral section system, wireless electric energy transmitting and receiving device |
| CN113103928B (en) * | 2021-05-26 | 2022-12-09 | 中车株洲电力机车研究所有限公司 | Automatic passing neutral section system, wireless electric energy transmitting and receiving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103944243B (en) | A kind of induction type non-contact charging device with accurate alignment function used for electric vehicle | |
| CN103490465A (en) | Running electrical vehicle wireless charging device based on solar photovoltaic power supply | |
| CN104682581B (en) | Movable equipment dynamic radio electric supply installation and dynamic radio method of supplying power to thereof based on sectional guide rail equilibrium field intensity | |
| CN104682580A (en) | Dynamic wireless power supply system used for electric vehicle and based on parallel multistage composite resonant structures and power supply method realized by adopting system | |
| CN103269114B (en) | Bi-directional charging device and system | |
| CN106945565A (en) | Wireless charging device in running car | |
| CN105835724B (en) | N-shaped power supply rail applied to the power supply of mobile device dynamic radio | |
| CN108189680A (en) | Charging control system and method for electric automobile and electric automobile | |
| CN105047390A (en) | Bridge arm connection type multi-phase three-dimensional H-shaped receiving end applied to electric car wireless power supply | |
| CN107093920A (en) | It is a kind of based on the motor vehicle radio charging system inductively or capacitively coupled | |
| CN105186711A (en) | Bridge arm winding type flat plate magnetic core receiving end applied to wireless power supply of electric cars | |
| CN105743226B (en) | A kind of contactless power supply system for electric locomotive | |
| CN105966259B (en) | Wireless energy energy supplying system in a kind of electric automobile during traveling based on wheel | |
| CN105047389A (en) | Three-dimensional H-shaped receiving end applied to electric car wireless power supply and wireless power supply method thereof | |
| CN108923476A (en) | A kind of electric car direct current wireless charging system | |
| CN203423515U (en) | Electric driving automobile wireless charging device based on solar photovoltaic power supply | |
| CN103997105A (en) | Electric automobile wireless charging electric energy receiving system and method | |
| CN105515210A (en) | Non-contact charging pile, on-board charging device, and charging system | |
| CN206834812U (en) | It is a kind of based on the motor vehicle radio charging system inductively or capacitively coupled | |
| CN204361762U (en) | A kind of small rail car charging device based on electromagnetic induction | |
| CN209776190U (en) | Two-transmitting-to-four-receiving-coil-structured dynamic wireless power supply device for electric automobile | |
| CN107839486A (en) | A kind of energy coupling structure applied to dynamic radio electric power system designs | |
| CN203303646U (en) | Electric toy car utilizing rail type wireless power supply system to supply power | |
| CN105305661A (en) | Automobile power supply system | |
| CN205335871U (en) | Electric automobile intelligence non -contact charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
|
| RJ01 | Rejection of invention patent application after publication |