CN205646952U - Electric vehicle wireless charging system - Google Patents
Electric vehicle wireless charging system Download PDFInfo
- Publication number
- CN205646952U CN205646952U CN201620145556.4U CN201620145556U CN205646952U CN 205646952 U CN205646952 U CN 205646952U CN 201620145556 U CN201620145556 U CN 201620145556U CN 205646952 U CN205646952 U CN 205646952U
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- China
- Prior art keywords
- charging system
- circuit
- control circuit
- coil
- factor correction
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- 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
- Y02T10/72—Electric energy management in electromobility
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an electric vehicle wireless charging system includes transmitting terminal charging system and receiving terminal charging system, transmitting terminal charging system and receiving terminal charging system adopt the mode wireless transmission of magnetic coupling, does transmitting terminal charging system include power factor correction circuit, DC control circuit is disturbed to DC converter, high frequency inverter circuit, transmitting coil, frequency, wherein: does the power factor correction circuit pass through DC DC converter, high frequency inverter circuit are connected with transmitting coil, transmitting coil disturbs control circuit to be connected with the frequency, receiving terminal charging system includes receiving coil, rectifier circuit, the control circuit that charges, wherein: receiving coil is connected through the rectifier circuit and the control circuit that charges, the utility model discloses an advantage: this electric vehicle wireless charging system charge efficiency is the highest, can realize farther distance, the wireless transmission of multipotency more.
Description
Technical field
This utility model relates to electric automobile electronic technology field, particularly to a kind of wireless charging system for electric automobile.
Background technology
Electric automobile is with pure electric energy for driving the automobile of power, does not has tail gas thus solves emission problem.Additionally, the source of electric energy is varied, being a kind of renewable free of contamination clean energy resource, this has the consumption that can save fossil energy greatly.It is the electric energy that provides using Vehicular accumulator cell as a kind of novel environment friendly automobile of power, be solve non-renewable fossil energy consume in a large number, environmental pollution and the important channel that cuts operating costs.Traditional charging modes is wired charging, is i.e. delivered to vehicle-mounted energy-storage battery from electrical network by electric energy by cable, and this mode needs to be electrically connected, malfunction, it is impossible to realize Automated condtrol；Easily produce electric spark during plug, cause high pressure to get an electric shock；And this mode cannot carry out field operation under the vile weathers such as sleet, charge inconvenient.And wireless charging mode is to transmit energy by magnetic field, it is possible to adapt to severe external environment condition, does not plug loss and security risk, easily realize automatization.Wireless charging mode advantage is numerous, gathers around and has broad application prospects, and becomes the main flow charging modes of following electric automobile by progressively replacing existing charging technique, greatly advances the development of ev industry.China's ev industry starting is late, and development is relatively slow, and technical bottleneck is the most unresolved, and for wireless charging technology especially for the starting stage, research worker and the equipment of being engaged in association area are the deficientest, and achievement is the most backward.
Summary of the invention
The purpose of this utility model is the problem in order to solve above-mentioned existence, and spy provides a kind of wireless charging system for electric automobile.
A kind of wireless charging system for electric automobile, it is characterised in that: include that transmitting terminal charging system and receiving terminal charging system, described transmitting terminal charging system and receiving terminal charging system use magnetic-coupled mode to be wirelessly transferred；Described transmitting terminal charging system includes circuit of power factor correction, DC-DC converter, high-frequency inverter circuit, transmitting coil, frequency interferences control circuit, wherein: circuit of power factor correction is connected with transmitting coil by DC-DC converter, high-frequency inverter circuit；Described transmitting coil is connected with frequency interferences control circuit；Described receiving terminal charging system includes receiving coil, rectification circuit, charging control circuit, wherein: receiving coil is connected with charging control circuit by rectification circuit.
Further, described transmitting coil and receiving coil use excitation wire coiling, are provided with magnetic core in described transmitting coil and receiving coil.
Further, described circuit of power factor correction is active power-factor correction circuit, and described active power-factor correction circuit is made up of switching tube, high-frequency inductor and filter capacitor.
Further, described charging control circuit uses the UC3854 chip of TI company, and UC3854 chip is a kind of high power factor correction integral control circuit chip.
Wireless charging system for electric automobile described in the utility model has the following characteristics that
(1) charge voltage range is between 32V-55V, and charging voltage when charging normal is 48V, and charge power is 500W；
(2) system charge efficiency is more than 80%；
(3) input voltage gamut input, i.e. input voltage range is between 85V-245V, and frequency range is 50Hz-60Hz；
(4) wireless charging distance 15cm, coil diameter is smaller in size than 50cm*50cm；
(5) current harmonic content during 500W charging is less than 8%, and power factor (PFC) is more than 0.95.
Advantage of the present utility model: this wireless charging system for electric automobile charge efficiency is the highest, it is possible to achieve being wirelessly transferred of farther distance, more multi-energy.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment.
Fig. 1 is wireless charging system for electric automobile theory structure schematic diagram.
Detailed description of the invention
A kind of wireless charging system for electric automobile, it is characterised in that: include that transmitting terminal charging system 1 and receiving terminal charging system 2, described transmitting terminal charging system 1 and receiving terminal charging system 2 use magnetic-coupled mode to be wirelessly transferred；Described transmitting terminal charging system 1 includes circuit of power factor correction 11, DC-DC converter 12, high-frequency inverter circuit 13, transmitting coil 14, frequency interferences control circuit 15, wherein: circuit of power factor correction 11 is connected with transmitting coil 14 by DC-DC converter 12, high-frequency inverter circuit 13；Described transmitting coil 14 is connected with frequency interferences control circuit 15；Described receiving terminal charging system 2 includes receiving coil 21, rectification circuit 22, charging control circuit 23, wherein: receiving coil 21 is connected with charging control circuit 23 by rectification circuit 22.
Circuit of power factor correction 11, primarily to ensure that the input current phase place of system is consistent with electric network voltage phase, reduces system harmonics content, improves PF value, to reduce the system pollution to electrical network, improves security reliability.Circuit of power factor correction 11 uses active power factor correction technology, and the element such as electric routing switch pipe, high-frequency inductor and filter capacitor is constituted, and is driven the phase place of signal to realize Interleaved control by regulation, it is achieved power factor function.DC-DC converter 12 according to rear class demand, can reduce the output voltage of circuit of power factor correction 11, it is achieved current constant control.DC-DC structure uses buck circuit, can reduce the output voltage of circuit of power factor correction 11 according to the output voltage of S-S structure, thus control resonance current, reach the purpose of current constant control.The DC voltage that DC-DC converter 12 exports can be converted into high-frequency ac voltage by high-frequency inverter circuit 13, and acts on transmitting coil 14, can greatly improve emission effciency and transmission range compared with low-frequency ac voltage.High-frequency inverter circuit 13 uses full-bridge topologies, compared with semi-bridge inversion topology, is more suitable for high power transmission；Transmission structure selects S-S structure.When transmitting terminal is energized, it to emission electromagnetic wave, and can't form a radiationless magnetic field the most around.This magnetic field is used for and receiving terminal is got in touch with, and excites the resonance of receiving terminal, thus transmits energy with the least consumption for cost, and frequency interferences control circuit 15 can be achieved with its function, and people do not worry the health of oneself and other equipment being produced harmful effect.
The exchange that receiving coil 21 exports is converted into direct current by rectification circuit 22, provides DC voltage for rear class.Rectification circuit 22 uses synchronous rectification, reduces rectifier loss further, promotes system effectiveness.Charging control circuit 23 is in order to realize invariable power charging, it is achieved the control to accumulator charging.Charging controlled stage circuit 23 uses buck circuit equally, power limitation control is realized by the voltage and current of regulation buck circuit output, reach the index request that charges, this utility model uses UC3854 chip to realize power limitation control, and UC3854 chip is a kind of high power factor correction integral control circuit chip.
Transmitting coil 14 and receiving coil 21 use excitation wire coiling, and transmitting coil 14 is relatively low with the coefficient of coup of receiving coil 21, and have around coil conductor by time be easily subject to interference, affect system stability and work.Need coil is carried out appropriate design, including the design in inside and outside footpath and the number of turn and the design of inductance value, be simultaneously introduced magnetic core, reduce external interference.
This wireless charging system for electric automobile energy wireless transmission distance is 15cm, and coil dimension is less than 50cmx50cm.And in view of kindred effect and the impact of kelvin effect, using excitation wire coiling transmitting and receiving coil, two coil dimensions are completely the same, use bifilar parallel form, and coil casket number 13 casket, gallbladder number is than 1:1, coil outer diameter 44cm.Resonance point selects at about 25kHz.
Above-described embodiment, an example the most of the present utility model, is not for limiting enforcement of the present utility model and interest field, all identical with content described in this utility model claim or the technical scheme of equivalent, all should be included in this utility model protection domain.
Claims (4)
1. a wireless charging system for electric automobile, it is characterised in that: include that transmitting terminal charging system and receiving terminal charging system, described transmitting terminal charging system and receiving terminal charging system use magnetic-coupled mode to be wirelessly transferred；Described transmitting terminal charging system includes circuit of power factor correction, DC-DC converter, high-frequency inverter circuit, transmitting coil, frequency interferences control circuit, wherein: circuit of power factor correction is connected with transmitting coil by DC-DC converter, high-frequency inverter circuit；Described transmitting coil is connected with frequency interferences control circuit；Described receiving terminal charging system includes receiving coil, rectification circuit, charging control circuit, wherein: receiving coil is connected with charging control circuit by rectification circuit.
A kind of wireless charging system for electric automobile the most according to claim 1, it is characterised in that: described transmitting coil and receiving coil use excitation wire coiling, are provided with magnetic core in described transmitting coil and receiving coil.
A kind of wireless charging system for electric automobile the most according to claim 1, it is characterized in that: described circuit of power factor correction is active power-factor correction circuit, described active power-factor correction circuit is made up of switching tube, high-frequency inductor and filter capacitor.
A kind of wireless charging system for electric automobile the most according to claim 1, it is characterised in that: described charging control circuit usesTI CompanyUC3854 chip, UC3854 chip is a kind of high power factor correction integral control circuit chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145556.4U CN205646952U (en) | 2016-02-27 | 2016-02-27 | Electric vehicle wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145556.4U CN205646952U (en) | 2016-02-27 | 2016-02-27 | Electric vehicle wireless charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646952U true CN205646952U (en) | 2016-10-12 |
Family
ID=57076864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620145556.4U Expired - Fee Related CN205646952U (en) | 2016-02-27 | 2016-02-27 | Electric vehicle wireless charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618388A (en) * | 2017-09-26 | 2018-01-23 | 伽行科技（北京）有限公司 | A kind of wireless charging system for electric automobile |
| CN110053506A (en) * | 2019-06-11 | 2019-07-26 | 北京有感科技有限责任公司 | Wireless electric vehicle charging device and system |
-
2016
- 2016-02-27 CN CN201620145556.4U patent/CN205646952U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618388A (en) * | 2017-09-26 | 2018-01-23 | 伽行科技（北京）有限公司 | A kind of wireless charging system for electric automobile |
| CN107618388B (en) * | 2017-09-26 | 2023-10-31 | 伽行科技（北京）有限公司 | Wireless charging system of electric automobile |
| CN110053506A (en) * | 2019-06-11 | 2019-07-26 | 北京有感科技有限责任公司 | Wireless electric vehicle charging device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |