CN202712927U - Intelligent charging equalization device of hybrid and pure electric automobile power battery - Google Patents
Intelligent charging equalization device of hybrid and pure electric automobile power battery Download PDFInfo
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- CN202712927U CN202712927U CN 201220404853 CN201220404853U CN202712927U CN 202712927 U CN202712927 U CN 202712927U CN 201220404853 CN201220404853 CN 201220404853 CN 201220404853 U CN201220404853 U CN 201220404853U CN 202712927 U CN202712927 U CN 202712927U
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- power battery
- electric automobile
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Abstract
The utility model relates to an intelligent charging equalization device of a hybrid and pure electric automobile power battery. The intelligent charging equalization device includes a power battery management system, at least one single battery voltage acquisition element, a charger, and at least one charging equalizer. The power battery management system is electrically connected with the single battery voltage acquisition element, the charger, and the charging equalizer respectively. Preferably, the intelligent charging equalization device also includes a relay. The power battery management system is electrically connected with the charger and the charging equalizer via the relay. The number of the charging equalizers is equal to the number of the single batteries of the power batteries. The number of the single battery voltage acquisition elements is equal to the number of the single batteries of the power batteries. The intelligent charging equalization device of the hybrid and pure electric automobile power battery is unique and clever in design, can rapidly, effectively and conveniently realize the equalized charging maintenance of the power battery. Besides, the intelligent charging equalization device is concise in structure, and is suitable for large-scale popularization and application.
Description
Technical field
The utility model relates to the automobile dynamic system technical field, and particularly hybrid power and pure electric automobile are used the power battery technology field, specifically a kind of hybrid power and the pure electric automobile intelligent charging balancer of electrokinetic cell.
Background technology
Hybrid power and pure electric automobile have increased high voltage power battery system, motor and the key components and parts such as electric machine controller, entire car controller on the basis of orthodox car.Wherein, the high voltage power battery system is comprised of the battery of battery management system, heat management system and several series connection, the property relationship of high voltage power battery system is to the performance of car load, and consistency of the performance of high voltage power battery and battery cell, performance, heat management system etc. are relevant.
The high voltage power power brick is comprised of the battery of several series connection, because the property of there are differences in the battery manufacture process; In the use procedure, be subjected to the impact of environment, will increase the inconsistency of battery, thereby reduce the operating efficiency of battery, shorten the life-span of battery.
For prolonging the life-span of high-tension battery bag, increase battery efficiency, after the high voltage power power brick is used a period of time, need to do the equalization charging to each single battery.
Existing battery balancedization charge maintenance generally adopts energy transfer method or energy to consume method, its basic principle is the monomer voltage that battery management system detects each battery cell, if voltage difference surpasses the scope that allows between battery cell, management system control relay or metal-oxide-semiconductor, controlled discharge resistance or electric capacity are connected with the battery cell that needs equalization, thereby realize energy consumption or transfer to battery cell, reach the purpose of battery cell equalization, but this battery cell equalization method cost is high, need to consume certain energy, increased the difficulty of Machine Design and battery system heat management.
Therefore, expect a kind of battery balanced gasifying device, can effectively realize easily fast the equalization charge maintenance to electrokinetic cell.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, a kind of hybrid power and the pure electric automobile intelligent charging balancer with electrokinetic cell is provided, this hybrid power and pure electric automobile are unique with the intelligent charging balancer design of electrokinetic cell, design ingenious, can effectively realize easily fast the equalization charge maintenance to electrokinetic cell, and simple for structure, be suitable for large-scale promotion application.
To achieve these goals, hybrid power of the present utility model and the pure electric automobile intelligent charging balancer of electrokinetic cell, be characterized in, comprise power battery management system, at least one monomer battery voltage acquisition elements, charger and at least one charge equalizer, described power battery management system is connected with described monomer battery voltage acquisition elements, described charger and the charge equalizer circuit of being connected respectively.
Preferably, described hybrid power and pure electric automobile also comprise relay with the intelligent charging balancer of electrokinetic cell, described power battery management system by described relay respectively with described charger be connected the charge equalizer circuit and be connected.
Preferably, the number of described charge equalizer equals the number of the cell of electrokinetic cell.
Preferably, the number of described monomer battery voltage acquisition elements equals the number of the cell of electrokinetic cell.
The beneficial effects of the utility model are specific as follows: hybrid power of the present utility model and pure electric automobile comprise power battery management system with the intelligent charging balancer of electrokinetic cell, at least one monomer battery voltage acquisition elements, charger and at least one charge equalizer, simple for structure, with charger electrokinetic cell is charged first, when the monomer voltage of cell reaches peak, change into charge equalizer and charging, thereby when the startup charge equalizer carries out equalizing charge to cell, the cell that has reached peak when the monomer voltage of cell will no longer charge, and the monomer voltage of cell does not reach the cell of peak with equalizing charge, until the monomer voltage of this cell reaches maximum, thereby the equalization that realizes cell is safeguarded and charging, design is unique, design ingenious, can effectively realize easily fast the equalization charge maintenance to electrokinetic cell, be suitable for large-scale promotion application.
Description of drawings
Fig. 1 is the structure connection diagram of a specific embodiment of the present utility model.
Fig. 2 is the structure connection diagram of another specific embodiment of the present utility model.
Embodiment
In order more clearly to understand technology contents of the present utility model, describe in detail especially exemplified by following examples, its purpose only is better to understand content of the present utility model and unrestricted protection range of the present utility model.
See also Fig. 1-shown in Figure 2, hybrid power of the present utility model and pure electric automobile comprise power battery management system, at least one monomer battery voltage acquisition elements (not shown), charger and at least one charge equalizer with the intelligent charging balancer of electrokinetic cell, and described power battery management system is connected with described monomer battery voltage acquisition elements, described charger and the charge equalizer circuit of being connected respectively.
Described power battery management system can be controlled described charger and described charge equalizer by any suitable element, in specific embodiment of the utility model, described hybrid power and pure electric automobile also comprise relay with the intelligent charging balancer of electrokinetic cell, described power battery management system by described relay respectively with described charger be connected the charge equalizer circuit and be connected.
The number of described charge equalizer can be any, and preferably, the number of described charge equalizer equals the number of the cell of electrokinetic cell.See also shown in Figure 1ly, in a specific embodiment of the present utility model, the number of described cell is 1, and the number of described charge equalizer is 1.See also shown in Figure 2, in another specific embodiment of the present utility model, the number of described cell is N (N does not all illustrate greater than 5), the number of described charge equalizer also is N, does not all illustrate from charge equalizer 1 to charge equalizer N().
The number of described monomer battery voltage acquisition elements can be any, and preferably, the number of described monomer battery voltage acquisition elements equals the number of the cell of electrokinetic cell.For example, in a specific embodiment of the present utility model, the number of described cell is 1, and the number of described monomer battery voltage acquisition elements is 1.In another specific embodiment of the present utility model, the number of described cell is N (N does not all illustrate greater than 5), and the number of described monomer battery voltage acquisition elements also is N (not shown).
When the utility model uses, charger is connected to electrokinetic cell, charge equalizer and cell connect one to one, and monomer battery voltage acquisition elements and cell connect one to one.
Power battery management system has equalization charging forecast function, power battery management system is responsible for predicting whether electrokinetic cell needs to carry out the equalization charging, need to carry out equalization when charging when predicting electrokinetic cell, power battery management system sends equalization charging request.
Electrokinetic cell equalization charge step is as follows:
(1) predict electrokinetic cell by power battery management system and need to carry out equalization when charging, by relay, thereby the control charger charges to described electrokinetic cell;
(2) described charger charges to described electrokinetic cell, and described power battery management system gathers the monomer voltage of each cell of described electrokinetic cell simultaneously, until the monomer voltage value of at least one described cell reaches peak;
(3) described power-supply management system is connected with the charging of electrokinetic cell by relay cut-out charger, thereby controlling described charger stops described electrokinetic cell is charged, and begin each described cell is carried out the monomer equalizing charge by the Control charge equalizer, until be full of.
Described power battery management system can predict described electrokinetic cell by following steps need to carry out the equalization charging: described power battery management system gathers the described monomer voltage of described cell, judge whether the voltage difference between the described cell surpasses set point, if described voltage difference surpasses set point, then described power battery management system predicts that described electrokinetic cell need to carry out the equalization charging.
Described cell can be any suitable battery.Preferably, described cell is the lithium ion single battery, and described peak is 3.6 volts.
Adopt the utility model, with charger electrokinetic cell charged first, when the monomer voltage of cell is charged to maximum, with charge equalizer to power battery charging.Like this, when the startup charge equalizer carries out equalizing charge to cell, when having reached peaked cell, the monomer voltage of cell will no longer charge, and the monomer voltage of cell does not reach peaked cell with equalizing charge, until the monomer voltage of cell reaches maximum, thereby the equalization that realizes battery cell is safeguarded and charging.
The utility model realizes the equalization of lithium-ion-power cell is safeguarded that this charging method portfolio effect is obvious that the time is quick, and is convenient and reliable, do not need to control the charging interval of charge equalizer, reduces to overcharge risk by to the overcharging of lithium-ion-power cell.
In the utility model, each cell has a cover equalizing circuit, at least two cell series connection, the simultaneously output direct voltages of organizing more, realized the equalizing charge of a plurality of series connection cells, make that the terminal voltage of each cell raises synchronously in the electrokinetic cell, sufficient simultaneously, avoided owing to the different phenomenons of overcharging that cause of each cell characteristic, improve actual capacity and the useful life of electrokinetic cell, according to the target equalizing voltage of electrokinetic cell setting and the maximum voltage difference charging of balance, by relay switch charger or charge equalizer.The utility model can guarantee that the voltage difference between each cell is no more than the scope of a certain setting, improves unbalanced between the electrokinetic cell, reduces maintenance and the replacing of cell.
To sum up, hybrid power of the present utility model and pure electric automobile are unique with the intelligent charging balancer design of electrokinetic cell, design ingenious, the quick effective equalization charge maintenance that realize easily electrokinetic cell, and simple for structure, be suitable for large-scale promotion application.
In this specification, the utility model is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (4)
1. a hybrid power and pure electric automobile are with the intelligent charging balancer of electrokinetic cell, it is characterized in that, comprise power battery management system, at least one monomer battery voltage acquisition elements, charger and at least one charge equalizer, described power battery management system is connected with described monomer battery voltage acquisition elements, described charger and the charge equalizer circuit of being connected respectively.
2. hybrid power according to claim 1 and pure electric automobile are with the intelligent charging balancer of electrokinetic cell, it is characterized in that, described hybrid power and pure electric automobile also comprise relay with the intelligent charging balancer of electrokinetic cell, described power battery management system by described relay respectively with described charger be connected the charge equalizer circuit and be connected.
3. hybrid power according to claim 1 and pure electric automobile is characterized in that with the intelligent charging balancer of electrokinetic cell the number of described charge equalizer equals the number of the cell of electrokinetic cell.
4. hybrid power according to claim 1 and pure electric automobile is characterized in that with the intelligent charging balancer of electrokinetic cell the number of described monomer battery voltage acquisition elements equals the number of the cell of electrokinetic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404853 CN202712927U (en) | 2012-08-15 | 2012-08-15 | Intelligent charging equalization device of hybrid and pure electric automobile power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404853 CN202712927U (en) | 2012-08-15 | 2012-08-15 | Intelligent charging equalization device of hybrid and pure electric automobile power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712927U true CN202712927U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404853 Expired - Fee Related CN202712927U (en) | 2012-08-15 | 2012-08-15 | Intelligent charging equalization device of hybrid and pure electric automobile power battery |
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| Country | Link |
|---|---|
| CN (1) | CN202712927U (en) |
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2012
- 2012-08-15 CN CN 201220404853 patent/CN202712927U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180815 |