CN205194527U - Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor - Google Patents
Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor Download PDFInfo
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- CN205194527U CN205194527U CN201520954360.5U CN201520954360U CN205194527U CN 205194527 U CN205194527 U CN 205194527U CN 201520954360 U CN201520954360 U CN 201520954360U CN 205194527 U CN205194527 U CN 205194527U
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- ion capacitor
- power supply
- lithium
- capacitor module
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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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Abstract
The utility model discloses an acceleration energy package based on lithium ion capacitor mainly includes lithium ion capacitor module, one -way DC power supply and second direct current relay, the lithium ion capacitor module is equipped with three wiring end, include two positive pole wiring ends and negative terminal, wherein positive terminal and the second direct current relay that is connected to one -way DC power supply is respectively held to two anodal wiring. And to disclose one kind be the power supply unit with the pure electric vehicles of this energy package. The utility model discloses a power battery's frequent instantaneous powerful power supply can be avoided to the energy package with higher speed, has effectively improved power battery's service conditions, has prolonged power battery's life, has improved the charge -discharge cycle performance of power battery in its life.
Description
Technical field
The utility model relates to a kind of acceleration energy bag based on lithium-ion capacitor, adopts the pure electric automobile supply unit of this acceleration energy bag, belongs to electric motor car energy technical field.
Background technology
Due to environmental pollution and non-regeneration energy crisis, electric automobile has become a kind of important green traffic instrument gradually, and it has the outstanding features such as energy-conservation, low noise, reduction discharge.Electric automobile electrokinetic cell used is general not identical with startup power supply, and it continues heavy-current discharge (start, accelerate or climbing) with the medium current of long period.Therefore to the basic demand of electrokinetic cell be: high-energy-density, high power density, longer cycle life, preferably charge-discharge performance, price are low.(reference: " power technology ", electric motor car, electric vehicle power supply and development strategy thereof, thunder thunder etc., calendar year 2001 25 volume)
The power supply being applied to electric automobile at present is mainly divided into two classes, and a class is single power supply system, such as: lead acid accumulator, lithium ion battery, ultracapacitor etc., such as patent: CN103057407A, CN204315642U, CN201559546U; Another kind of composite power source, such as: storage battery-ultracapacitor, dynamics battery-super capacitance device, high-energy electrokinetic cell-high power electrokinetic cell etc., such as patent: CN102501778A, CN104015626A, CN201457108U.
But for the pure electric automobile of the marketization, mainly drive with electrokinetic cell, being aided with storage battery is that car internal burden is powered; High-grade electric motor car is also equipped with start stop system.
Ultracapacitor is the energy-storage travelling wave tube with features such as high-specific-power, high-energy-density, energy storage are many, and there is low internal resistance, efficiency for charge-discharge is high, and the advantage such as have extended cycle life, can with the combinations such as other electrokinetic cells, for the startup of electric motor car, acceleration and climbing.
And for the hybrid power system of dynamics battery-super capacitance device, the heaviness of ultracapacitor, volume cause greatly this mode to be difficult to be applied to pure electric automobile on a large scale.The road travelled is complicated, frequently gives it the gun and causes electrokinetic cell momentary high power electric discharge frequently, have very large irreversible impact to the performance of electrokinetic cell, such as, make the shortening of its service life cycle, discharge capacity reduces, internal resistance increases.
Utility model content
Technical problem to be solved in the utility model is, a kind of acceleration energy bag based on lithium-ion capacitor is provided, adopt the pure electric automobile supply unit of this energy bag, to eliminate the frequent acceleration of pure electric automobile and the irremediable impact caused electrokinetic cell.
Lithium-ion capacitor adopts lithium ion battery and ultracapacitor mixed structure, its positive pole adopts the positive pole of ultracapacitor, negative pole adopts the negative pole structure of lithium ion battery, has the characteristic of the high power of ultracapacitor, long-life characteristics and lithium ion battery high-energy-density (its energy density is much larger than lead acid accumulator) concurrently.Itself have very high voltage holding capability, normal temperature 25 DEG C is placed 3 months, voltage drop≤5%; Safety in operation, the reliability of wide serviceability temperature scope.
The utility model is on the basis not changing existing pure electric automobile structure, propose a kind of acceleration energy bag based on lithium-ion capacitor, mainly comprise lithium-ion capacitor module, Unidirectional direct-current power supply and the second direct current relay, described lithium-ion capacitor module is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to positive terminal and second direct current relay of Unidirectional direct-current power supply respectively.
The utility model also proposed and a kind ofly adopts the above acceleration energy bag based on lithium-ion capacitor for pure electric automobile supply unit, comprises and connects successively and can form the electrokinetic cell of the second closed-loop path, the first direct current relay, inverter and three phase electric machine,
Lithium-ion capacitor module in described acceleration energy bag is connected with three phase electric machine by the second direct current relay, inverter successively, can form the first closed-loop path;
Described electrokinetic cell is connected with described lithium-ion capacitor module by Unidirectional direct-current power supply, can form the 3rd closed-loop path.
Further, described Unidirectional direct-current power turn-on direction is from electrokinetic cell to lithium-ion capacitor module.
The supply unit of the pure electric automobile adopting acceleration energy bag of the present utility model to obtain, the power supply of the momentary high power frequently of electrokinetic cell can be avoided, effectively improve the service condition of electrokinetic cell, extend the useful life of electrokinetic cell, improve the charge-discharge performance of electrokinetic cell within its useful life.
Compared with ultracapacitor, lithium-ion capacitor has the characteristic of high power density and high-energy-density, the amount of lithium-ion capacitor required under the condition meeting identical acceleration pure electric automobile greatly reduces, required volume and weight is all far smaller than ultracapacitor, is therefore designed to removable acceleration energy bag.Namely this acceleration energy bag weight is few, volume is little, is easy to carry.
In addition, due to the high voltage hold facility of lithium-ion capacitor, do not use in some months, still have very high voltage to meet the acceleration environment of pure electric automobile yet.
Accompanying drawing explanation
Fig. 1 is the line circuit schematic diagram of acceleration energy bag of the present utility model;
Fig. 2 is the line circuit schematic diagram of the supply unit of original pure electric automobile;
Fig. 3 is the line circuit figure of the supply unit of the pure electric automobile adopting acceleration energy bag of the present utility model.
In figure: electrokinetic cell BAT, direct current relay EV1, EV2, inverter DC/AC, three phase electric machine MOTOR, Unidirectional direct-current power supply DC/DC, lithium-ion capacitor module LIC.
Embodiment
embodiment 1: the acceleration energy bag based on lithium-ion capacitor described in the utility model is as shown in Figure 1, mainly comprise lithium-ion capacitor module LIC, Unidirectional direct-current power supply DC/DC, the second direct current relay EV2, described lithium-ion capacitor module LIC is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to Unidirectional direct-current power supply DC/DC and the second direct current relay EV2 respectively.
embodiment 2: the original supply unit of pure electric automobile is as shown in Figure 2, comprise and connect successively and the electrokinetic cell BAT of the second closed-loop path, the first direct current relay EV1, inverter DC/AC and three phase electric machine MOTOR can be formed, the acceleration energy bag of employing described in embodiment 1 is according to being connected to original supply unit as shown in Figure 3, namely pure electric automobile supply unit described in the utility model is defined
Wherein, lithium-ion capacitor module LIC is connected with three phase electric machine MOTOR by the second direct current relay EV2, inverter DC/AC successively, and this is communicated with formation first closed-loop path;
Electrokinetic cell BAT is connected with three phase electric machine MOTOR by the first direct current relay EV1, inverter DC/AC successively, is communicated with formation second closed-loop path between this;
Electrokinetic cell BAT is connected with lithium-ion capacitor module LIC by Unidirectional direct-current power supply DC/DC, and form the 3rd closed-loop path after being communicated with, Unidirectional direct-current power supply DC/DC conducting direction is from electrokinetic cell BAT to lithium-ion capacitor module LIC.
This pure electric automobile supply unit, to the acceleration control procedure of electric automobile is:
(1), receive the signal for faster that sends of electromobile pedal, the first direct current relay EV1 disconnects, and electrokinetic cell BAT passes through the second closed-loop path that the first direct current relay EV1, inverter DC/AC and three phase electric machine MOTOR formed and disconnects;
(2), while step (1), second direct current relay EV2 closes, the first closed-loop path conducting that lithium-ion capacitor LIC is formed by the second direct current relay EV2, inverter DC/AC and three phase electric machine MOTOR, the direct voltage of lithium-ion capacitor module LIC is converted to alternating voltage for three phase electric machine MOTOR by inverter DC/AC provides high-power voltage to make its fast turn-around in short-term, thus accelerates to provide powerful power for electric automobile;
(3) when the signal for faster of electromobile pedal is cancelled, the second direct current relay EV2 disconnects, and the first closed-loop path disconnects;
(4), while step (3), first direct current relay EV1 closes, electrokinetic cell BAT forms the second closed-loop path of conducting again by the first direct current relay EV1, inverter DC/AC and three phase electric machine MOTOR, the direct voltage of electrokinetic cell BAT is converted to alternating voltage and provides lasting long time running for three phase electric machine MOTOR by inverter DC/AC, provides power for the long-time speed stabilizing of electric automobile travels;
(5) when, electric automobile runs without signal for faster, when Unidirectional direct-current power supply DC/DC detects that the voltage of lithium-ion capacitor module LIC is lower than the minimum voltage requirement provided needed for a pure electric automobile acceleration, Unidirectional direct-current power supply DC/DC is by the 3rd closed-loop path conducting, and the low-voltage dc voltage of electrokinetic cell BAT to be transferred to high-voltage dc voltage be that lithium-ion capacitor module LIC charges to rated voltage, then Unidirectional direct-current power supply DC/DC disconnects the 3rd closed-loop path.
The high voltage hold facility of lithium-ion capacitor, after this energy accelerated packet can be made to shelve some months, still can provide larger voltage to carry out high-power power supply to three phase electric machine MOTOR.
Claims (3)
1. the acceleration energy bag based on lithium-ion capacitor, it is characterized in that: this acceleration energy bag mainly comprises lithium-ion capacitor module, Unidirectional direct-current power supply and the second direct current relay, described lithium-ion capacitor module is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to positive terminal and second direct current relay of Unidirectional direct-current power supply respectively.
2. adopt a pure electric automobile supply unit for acceleration energy bag described in claim 1, comprise the electrokinetic cell, the first direct current relay, inverter and the three phase electric machine that connect successively and also can form the second closed-loop path, it is characterized in that:
Lithium-ion capacitor module in described acceleration energy bag is connected with three phase electric machine by the second direct current relay, inverter successively, can form the first closed-loop path;
Described electrokinetic cell is connected with described lithium-ion capacitor module by Unidirectional direct-current power supply, can form the 3rd closed-loop path.
3. the pure electric automobile supply unit of acceleration energy bag according to claim 2, is characterized in that: described Unidirectional direct-current power turn-on direction is for from electrokinetic cell to lithium-ion capacitor module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954360.5U CN205194527U (en) | 2015-11-25 | 2015-11-25 | Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor |
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| CN201520954360.5U CN205194527U (en) | 2015-11-25 | 2015-11-25 | Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor |
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| CN205194527U true CN205194527U (en) | 2016-04-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609317A (en) * | 2015-11-25 | 2016-05-25 | 上海展枭新能源科技有限公司 | Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device |
| CN106981705A (en) * | 2016-11-17 | 2017-07-25 | 上海展枭新能源科技有限公司 | A kind of car emergency startup power supply device |
| CN107031375A (en) * | 2016-12-05 | 2017-08-11 | 上海展枭新能源科技有限公司 | The novel power supply system and its circuit control method of a kind of hybrid vehicle |
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2015
- 2015-11-25 CN CN201520954360.5U patent/CN205194527U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609317A (en) * | 2015-11-25 | 2016-05-25 | 上海展枭新能源科技有限公司 | Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device |
| CN105609317B (en) * | 2015-11-25 | 2018-11-02 | 上海展枭新能源科技有限公司 | A kind of acceleration energy packet, pure electric automobile supply unit and its acceleration control method based on lithium-ion capacitor |
| CN106981705A (en) * | 2016-11-17 | 2017-07-25 | 上海展枭新能源科技有限公司 | A kind of car emergency startup power supply device |
| CN107031375A (en) * | 2016-12-05 | 2017-08-11 | 上海展枭新能源科技有限公司 | The novel power supply system and its circuit control method of a kind of hybrid vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220614 Address after: 333000 north of Zhihang Road, high tech Zone, Changjiang District, Jingdezhen City, Jiangxi Province (within Jingdezhen Weihang Technology Co., Ltd.) Patentee after: Jiangxi Zhanxiao New Energy Technology Co.,Ltd. Address before: 201199 room C307, huilide Industrial Park, No. 1-7, Lane 1356, Xinyuan Road, Minhang District, Shanghai Patentee before: SHANGHAI CAPENERGY TECHNOLOGY Co.,Ltd. |