CN102751773A - Wireless charging system for electric automobile - Google Patents
Wireless charging system for electric automobile Download PDFInfo
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- CN102751773A CN102751773A CN2012102381244A CN201210238124A CN102751773A CN 102751773 A CN102751773 A CN 102751773A CN 2012102381244 A CN2012102381244 A CN 2012102381244A CN 201210238124 A CN201210238124 A CN 201210238124A CN 102751773 A CN102751773 A CN 102751773A
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- coupling coil
- former limit
- electric automobile
- filtering circuit
- inverter
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Abstract
The invention discloses a wireless charging system for an electric automobile, which comprises a first rectifier filter circuit, an inverter, a primary side coupling coil, a position sensor, a secondary side coupling coil, a second rectifier filter circuit, a storage battery and a digital signal processor (DSP) controller, wherein the first rectifier filter circuit, the inverter and the primary side coupling coil are sequentially connected, and the first rectifier filter circuit is also connected with the power grid; the secondary side coupling coil, the second rectifier filter circuit and the storage battery are sequentially connected; the DSP controller is respectively connected with the position sensor and the inverter; and the position sensor is fixed on the primary side coupling coil. The wireless charging system is simple in structure and easy to implement, so that the electric automobile is accurately located, the charging efficiency is maximum and the loss is minimum.
Description
Technical field
The present invention relates to a kind of wireless charging system that is used for electric automobile.
Background technology
Along with the continuous intensification of global energy crisis, the exhaustion day by day of petroleum resources and air pollution, a series of problems such as the temperature rises, ev industry is able to develop and become the common strategic choice of various countries motor corporation, gets into new developing stage.Simultaneously, the vehicle charging technology also should be further developed.Mostly traditional vehicle charging is the plug-in type charging, but the danger that this mode exists high pressure to get an electric shock, and the charging interval is longer, makes troubles and hidden danger for people's living safety.
Therefore, non-contact type charging electric vehicle technology is able to development.At present, though can realize wireless charging, there are a lot of problems.As: charging device is complicated, and energy conversion efficiency is low, and electric energy loss is big etc.Wherein, the location of charging electric vehicle position also is a bigger problem, has only correct location, could guarantee the wireless charging of maximum power, is that loss is minimum, and efficient is the fastest.
Summary of the invention
The objective of the invention is to overcome the defective of prior art and a kind of wireless charging system that is used for electric automobile is provided, it is simple in structure, is easy to realize, electric automobile is accurately located, thereby makes charge efficiency maximum, and loss is minimum.
The technical scheme that realizes above-mentioned purpose is:
A kind of wireless charging system that is used for electric automobile; Connect electrical network; This wireless charging system comprises first current rectifying and wave filtering circuit, inverter, former limit coupling coil, position transducer, secondary coupling coil, second current rectifying and wave filtering circuit, storage battery and DSP (Digital Signal Processing) controller, wherein:
Said first current rectifying and wave filtering circuit, inverter and former limit coupling coil are connected successively, and first current rectifying and wave filtering circuit also connects said electrical network;
Said secondary coupling coil, second current rectifying and wave filtering circuit are connected with storage battery successively;
Said dsp controller connects said position transducer and inverter respectively;
Said secondary coupling coil is fixed on the electric automobile bottom, and said second current rectifying and wave filtering circuit and storage battery are placed in the electric automobile;
Said former limit coupling coil fixes on the ground;
Said position transducer is fixed on the coupling coil of said former limit, gathers the positional information between said former limit coupling coil and the secondary coupling coil and generate corresponding analog signal to send to said dsp controller;
The said analog-signal transitions that said dsp controller will receive is a digital signal; And the said digital signal of foundation judges whether reached coupling position between said former limit coupling coil and the secondary coupling coil; When reaching coupling position, said dsp controller sends PWM (pulse width modulation) signal and gives said inverter.
The above-mentioned wireless charging system that is used for electric automobile, wherein, the horizontal level of said former limit coupling coil is lower than the horizontal level of said secondary coupling coil.
The invention has the beneficial effects as follows: the present invention skilfully uses position transducer and dsp controller, and the electric automobile that makes is accurately located, and makes the abundant electromagnetic coupled of former and deputy coil, thereby makes charge efficiency maximum, and loss is minimum.Simultaneously, of the present invention simple in structure, be easy to realize having very big practicality.
Description of drawings
Fig. 1 is the structure chart that is used for the wireless charging system of electric automobile of the present invention.
Embodiment
To combine accompanying drawing that the present invention is described further below.
See also Fig. 1; The wireless charging system that is used for electric automobile 300 of the present invention; Connect electrical network 200; This wireless charging system comprises first current rectifying and wave filtering circuit 1, inverter 2, former limit coupling coil 3, secondary coupling coil 4, second current rectifying and wave filtering circuit 5, storage battery 6, position transducer 7 and dsp controller 8, wherein:
First current rectifying and wave filtering circuit 1, inverter 2 are connected with former limit coupling coil 3 successively, and first current rectifying and wave filtering circuit 1 also connects electrical network 200;
Secondary coupling coil 4, second current rectifying and wave filtering circuit 5 are connected with storage battery 6 successively;
Secondary coupling coil 4 is fixed on the bottom of electric automobile 300, and second current rectifying and wave filtering circuit 5 is placed in electric automobile 300 inside with storage battery 6; Former limit coupling coil 3 fixes on the ground; And the horizontal level of former limit coupling coil 3 is lower than the horizontal level of secondary coupling coil 4; The coupling of forceful electric power magnetic, wireless transmission electric energy can take place to seasonable (when promptly reaching coupling position) with secondary coupling coil 4 in former limit coupling coil 3 each other.
Operation principle of the present invention: when needing charging; Electric automobile 300 moves; Make secondary coupling coil 4 tend to former limit coupling coil 3; Make them reach coupling position, position transducer 7 is constantly gathered the positional informations between former limit coupling coils 3 and the secondary coupling coil 4 as far as possible, and generates corresponding analog signal and send to dsp controller 8; The said analog-signal transitions that dsp controller 8 will receive is a digital signal; And the said digital signal of foundation judges whether reached coupling position between former limit coupling coil 3 and the secondary coupling coil 4; When reaching coupling position; Dsp controller 8 sends pwm signal and gives inverter 2, makes inverter 2 work.Civil power forms direct current after through first current rectifying and wave filtering circuit, 1 rectifying and wave-filtering; Inverter 2 is transformed into alternating current with this direct current and passes to former limit coupling coil 3, because former limit coupling coil 3 with secondary coupling coil 4 coupling of forceful electric power magnetic takes place, gives secondary coupling coil 4 with electrical energy transfer; Secondary coupling coil 4 carries out filter rectification for second current rectifying and wave filtering circuit 5 electrical energy transfer that obtains; Obtain galvanic current, accumulators 6 chargings are accomplished until charging.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technical staff in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (2)
1. wireless charging system that is used for electric automobile; Connect electrical network; It is characterized in that this wireless charging system comprises first current rectifying and wave filtering circuit, inverter, former limit coupling coil, position transducer, secondary coupling coil, second current rectifying and wave filtering circuit, storage battery and dsp controller, wherein:
Said first current rectifying and wave filtering circuit, inverter and former limit coupling coil are connected successively, and first current rectifying and wave filtering circuit also connects said electrical network;
Said secondary coupling coil, second current rectifying and wave filtering circuit are connected with storage battery successively;
Said dsp controller connects said position transducer and inverter respectively;
Said secondary coupling coil is fixed on the electric automobile bottom, and said second current rectifying and wave filtering circuit and storage battery are placed in the electric automobile;
Said former limit coupling coil fixes on the ground;
Said position transducer is fixed on the coupling coil of said former limit, gathers the positional information between said former limit coupling coil and the secondary coupling coil and generate corresponding analog signal to send to said dsp controller;
The said analog-signal transitions that said dsp controller will receive is a digital signal; And the said digital signal of foundation judges whether reached coupling position between said former limit coupling coil and the secondary coupling coil; When reaching coupling position, said dsp controller sends pwm signal and gives said inverter.
2. the wireless charging system that is used for electric automobile according to claim 1 is characterized in that, the horizontal level of said former limit coupling coil is lower than the horizontal level of said secondary coupling coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102381244A CN102751773A (en) | 2012-07-10 | 2012-07-10 | Wireless charging system for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102381244A CN102751773A (en) | 2012-07-10 | 2012-07-10 | Wireless charging system for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102751773A true CN102751773A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102381244A Pending CN102751773A (en) | 2012-07-10 | 2012-07-10 | Wireless charging system for electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN102751773A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944243A (en) * | 2014-02-27 | 2014-07-23 | 北京航空航天大学 | Inductive non-contact charging device with precise centering function for electric automobile |
| CN105119354A (en) * | 2015-08-21 | 2015-12-02 | 苏州斯卡柏通讯技术有限公司 | Electric vehicle inductive coupling wireless charging device |
| CN106063080A (en) * | 2014-01-08 | 2016-10-26 | Lg伊诺特有限公司 | Wireless power transfer device and wireless power transfer system |
| CN108011647A (en) * | 2016-10-28 | 2018-05-08 | 中兴新能源汽车有限责任公司 | Signal receiving circuit and wireless charging device |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947032U (en) * | 2011-01-11 | 2011-08-24 | 王干 | Movable electric automobile wireless charging unit |
| CN202309145U (en) * | 2011-10-31 | 2012-07-04 | 朱文武 | Wireless charging device |
| CN202712943U (en) * | 2012-07-10 | 2013-01-30 | 上海市电力公司 | Wireless charging system for electric vehicles |
-
2012
- 2012-07-10 CN CN2012102381244A patent/CN102751773A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947032U (en) * | 2011-01-11 | 2011-08-24 | 王干 | Movable electric automobile wireless charging unit |
| CN202309145U (en) * | 2011-10-31 | 2012-07-04 | 朱文武 | Wireless charging device |
| CN202712943U (en) * | 2012-07-10 | 2013-01-30 | 上海市电力公司 | Wireless charging system for electric vehicles |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106063080A (en) * | 2014-01-08 | 2016-10-26 | Lg伊诺特有限公司 | Wireless power transfer device and wireless power transfer system |
| US10193392B2 (en) | 2014-01-08 | 2019-01-29 | Lg Innotek Co., Ltd. | Wireless power transfer device and wireless power transfer system |
| CN103944243A (en) * | 2014-02-27 | 2014-07-23 | 北京航空航天大学 | Inductive non-contact charging device with precise centering function for electric automobile |
| CN103944243B (en) * | 2014-02-27 | 2016-05-11 | 北京航空航天大学 | A kind of induction type non-contact charging device with accurate alignment function used for electric vehicle |
| CN105119354A (en) * | 2015-08-21 | 2015-12-02 | 苏州斯卡柏通讯技术有限公司 | Electric vehicle inductive coupling wireless charging device |
| CN108011647A (en) * | 2016-10-28 | 2018-05-08 | 中兴新能源汽车有限责任公司 | Signal receiving circuit and wireless charging device |
| CN108011647B (en) * | 2016-10-28 | 2023-11-03 | 中兴新能源汽车有限责任公司 | Signal receiving circuit and wireless charging device |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121011 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121011 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |