CN202634039U - Fast charging system of electric vehicle - Google Patents
Fast charging system of electric vehicle Download PDFInfo
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- CN202634039U CN202634039U CN 201220243415 CN201220243415U CN202634039U CN 202634039 U CN202634039 U CN 202634039U CN 201220243415 CN201220243415 CN 201220243415 CN 201220243415 U CN201220243415 U CN 201220243415U CN 202634039 U CN202634039 U CN 202634039U
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Abstract
The utility model discloses a fast charging system of an electric vehicle. The fast charging system comprises a microprocessor, an alternating-current contactor, an AC/DC (Alternating-Current/Direct Current) exchanger, an IGBT (Insulated Gate Bipolar Transistor) module, a high-frequency transformer, a rectifying filter circuit, a current sensor, a dynamic internal-resistance measuring module, a discharging circuit, a voltage sensor, a comparator, a temperature sensor, a pulse circuit and a direct-current auxiliary power supply. The fast charging system has the advantages that the problem that the service life of a storage battery can be shortened by the fast charging technology in the prior art is solved, the intelligent various-pulse charging mode is adopted, the fast, high-efficiency and safe effects are achieved and the service life of a battery pack is prolonged.
Description
Technical field
The utility model is specifically related to a kind of quick charging system of electric vehicle.
Background technology
In order to solve the energy and the environmental issue that the automobile industry sustainable development is faced, China begins from the ninth five-year plan, and the research and development and the application of batteries of electric automobile technology are actively promoted in research and development of continued support new-energy automobile key technology and innovation.At present, the problem that charging electric vehicle is slow still is not resolved as yet, and more existing quick charge technology can shorten the useful life of storage battery.
The utility model content
The purpose of the utility model is to provide a kind of quick charging system of electric vehicle; Solve the problem that the quick charge technology can shorten the useful life of storage battery in the prior art; Adopted intelligentized change pulse current charge mode, fast, efficient, safe, and prolonged the useful life of battery pack.
In order to achieve the above object, the technical scheme of the utility model employing is:
A kind of quick charging system of electric vehicle; Wherein, Comprise microprocessor, A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit, current sensor, dynamic internal resistance measurement module, discharge circuit, voltage sensor, comparator, temperature sensor, impulse circuit and dc auxiliary supply; A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit connect successively; Current rectifying and wave filtering circuit is connected with battery pack with current sensor respectively; Current sensor connects microprocessor, and battery pack connects dynamic internal resistance measurement module, discharge circuit, voltage sensor and temperature sensor respectively, and discharge circuit connects microprocessor; Voltage sensor connects comparator, and comparator, temperature sensor all connect microprocessor, and the AC/DC interchanger connects dc auxiliary supply, and dc auxiliary supply connects impulse circuit, and impulse circuit connects microprocessor; Microprocessor is connected with external communication interface.
The beneficial effect of the utility model is:
Electric car charger is as the energy supplementing system of electric automobile; Its charging performance is related to the useful life and the charging interval of battery pack; Fast, efficient, safe, rational electric weight supply is the basic principle of electric car charger design to electrokinetic cell in realization, also will take the adaptability of charger to various batteries simultaneously into account.The utility model system is different from continuous current charging and the pulse current charge mode that traditional charger adopts; Adopted intelligentized change pulse current charge mode; Realized implementing intelligentized real-time regulated according to the actual charged state that is recharged battery (electric current, temperature, dynamic internal resistance etc.) paired pulses charger charging pulse; With charger be recharged battery and rise to a system problem and take all factors into consideration, through introducing the intelligent algorithm of regulating, make to have the utlity model has applicability widely; Safer, more reliable, prolonged the useful life of battery pack.
Description of drawings
Fig. 1 is the system configuration sketch map of the utility model;
Fig. 2 is the sketch map of the utility model charging current pulse.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe in detail:
Referring to Fig. 1; The utility model comprises microprocessing unit, A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit, current sensor, dynamic internal resistance measurement module, discharge circuit, voltage sensor, comparator bank, temperature sensor, impulse circuit and dc auxiliary supply; A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit connect successively; Current rectifying and wave filtering circuit is connected with battery pack with current sensor respectively; Current sensor connects microprocessing unit; Battery pack connects dynamic internal resistance measurement module, discharge circuit, voltage sensor and temperature sensor respectively, and discharge circuit connects microprocessing unit; Voltage sensor connects comparator, and comparator bank, temperature sensor all connect microprocessing unit, and the AC/DC interchanger connects dc auxiliary supply, and dc auxiliary supply connects impulse circuit, and impulse circuit connects microprocessing unit; Microprocessing unit is connected with external communication interface.
Referring to Fig. 2, the charging current pulse comprises charging pulse T1, intermittent pulse T2 and discharge pulse T3.This quick charger is according to the terminal voltage of real-time detected battery pack, charging current, temperature, dynamic information such as internal resistance; According to Maas charging law; Implement sectional-regulated to 1 intermittent time of charging current pulse width T T2, discharge current pulse T3 through adopting intelligent control algorithm; Be recharged the electric polarization phenomenon of battery pack with elimination, make battery pack be in preferable electric current receive status constantly, improve charging rate and charge efficiency.
The concrete adjustment process of the utility model is, at first the charging pulse with broad charges, and the terminal voltage of storage battery rises, when reaching charging interval T1; Charger suspends charging, and when the charging intermittent time reached T2, charger continued charging; So repeatedly, when voltage rises to the magnitude of voltage V1 of setting, according to the setting of program; Reduce charge pulse duty cycle, and charge a battery, when accumulator voltage reaches set point V2; Charger intermittently suspends charging, regulates the output duty of ratio automatically according to feedback voltage, stops to charge through the short time; The levelization voltage of storage battery descends rapidly, and circulation so repeatedly is until the end of charge voltage V3 that reaches batteries.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Other modifications that those of ordinary skills make the technical scheme of the utility model perhaps are equal to replacement; Only otherwise break away from the spirit and the scope of the utility model technical scheme, all should be encompassed in the middle of the claim scope of the utility model.
Claims (1)
1. quick charging system of electric vehicle; It is characterized in that: comprise microprocessor, A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit, current sensor, dynamic internal resistance measurement module, discharge circuit, voltage sensor, comparator, temperature sensor, impulse circuit and dc auxiliary supply; A.C. contactor, AC/DC interchanger, IGBT module, high frequency transformer, current rectifying and wave filtering circuit connect successively; Current rectifying and wave filtering circuit is connected with battery pack with current sensor respectively; Current sensor connects microprocessor; Battery pack connects dynamic internal resistance measurement module, discharge circuit, voltage sensor and temperature sensor respectively, and discharge circuit connects microprocessor; Voltage sensor connects comparator, and comparator, temperature sensor all connect microprocessor, and the AC/DC interchanger connects dc auxiliary supply, and dc auxiliary supply connects impulse circuit, and impulse circuit connects microprocessor; Microprocessor is connected with external communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243415 CN202634039U (en) | 2012-05-28 | 2012-05-28 | Fast charging system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243415 CN202634039U (en) | 2012-05-28 | 2012-05-28 | Fast charging system of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634039U true CN202634039U (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243415 Expired - Lifetime CN202634039U (en) | 2012-05-28 | 2012-05-28 | Fast charging system of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098944A (en) * | 2015-05-18 | 2015-11-25 | 合肥协力仪表控制技术股份有限公司 | Intelligent vehicular lithium battery charger |
| CN107097665A (en) * | 2017-04-25 | 2017-08-29 | 柳州博泽科技有限公司 | A kind of charging/discharging thereof for automobile charging pile |
-
2012
- 2012-05-28 CN CN 201220243415 patent/CN202634039U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098944A (en) * | 2015-05-18 | 2015-11-25 | 合肥协力仪表控制技术股份有限公司 | Intelligent vehicular lithium battery charger |
| CN107097665A (en) * | 2017-04-25 | 2017-08-29 | 柳州博泽科技有限公司 | A kind of charging/discharging thereof for automobile charging pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |