CN102655344A - Power source and method for regulating charging voltage of battery - Google Patents

Power source and method for regulating charging voltage of battery Download PDF

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CN102655344A
CN102655344A CN 201110049741 CN201110049741A CN102655344A CN 102655344 A CN102655344 A CN 102655344A CN 201110049741 CN201110049741 CN 201110049741 CN 201110049741 A CN201110049741 A CN 201110049741A CN 102655344 A CN102655344 A CN 102655344A
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voltage
battery
unit
method
charging
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CN 201110049741
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不公告发明人
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江苏嘉钰新能源技术有限公司
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Abstract

The invention provides a power source for regulating the charging voltage of a battery, comprising a storage battery, a voltage regulating unit and a control unit, wherein one end of the storage battery is connected with the voltage regulating unit, and the other end of the storage battery is earthed; the control unit is connected with the voltage regulating unit and connected with the storage battery through the voltage regulating unit; the control unit is used for calling a lookup table built in the control unit according to the charging state of the storage battery, finding control information corresponding to the charging state of the storage battery, generating a corresponding control signal and transmitting the control signal to the voltage regulating unit; and the voltage regulating unit is used for generating a corresponding voltage according to the control signal. The invention also provides a method for regulating the charging voltage of a battery. By using the power source and the method for regulating the charging voltage of the battery, the service life of the storage battery is greatly prolonged, and the storage battery can be charged sufficiently.

Description

一种调整电池充电电压的电源和方法 A power supply voltage and a battery charging method of adjusting

【技术领域】 TECHNICAL FIELD

[0001 ] 本发明涉及一种电动车充电技术,具体涉及一种调整电池充电电压的电源和方法。 [0001] The present invention relates to an electric vehicle charging technology, particularly relates to a method of adjusting a power supply voltage and a battery charging method.

【背景技术】 【Background technique】

[0002] 电动汽车事业取得了长足的进步,但是电池系统的相对脆弱是电动车发展的瓶颈。 [0002] electric car industry has made great progress, but relatively weak battery system is the bottleneck in the development of electric vehicles. 锂电池具有能量密度和体积密度高、工作电压高、无记忆效应、自放电低又无环境污染问题的优点,是电动汽车的理想动力源,但锂电池的抗过充电能力较铅酸电池差。 Lithium battery having high energy density and bulk density, high operating voltage, no memory effect, low self-discharge nor the advantages of environmental pollution, is an ideal power source for electric vehicles, but resistance to overcharge than the lead-acid battery lithium difference . 传统基于电池组端电压的充电方法使得电池组中部分电池在充电过程中存在严重的过充电现象,使得电池的容量下降迅速,电池的寿命严重缩短,车辆的运行成本增加,阻碍了电动汽车的发展。 Traditional based on the charging method of the battery terminal voltage such that the battery portion of the battery serious overcharge phenomenon during the charging process, so that the capacity of the battery decreases rapidly, battery life severely shortened, increasing the running cost of the vehicle, hindering the electric vehicle development of.

[0003] 长期以来,铅酸蓄电池作为主要的动力源或后备电源得到了广泛的应用。 [0003] For a long time, lead-acid batteries as a main power source or a backup power source has been widely used. 铅酸电池的抗过充能力较强,可通过充电后期的涓流充电对电池进行均衡。 Anti-acid battery charge capacity is too strong, late charge by trickle charging of the battery are equalized. 20世纪90年代,镍氢电池和锂电池出现以后,多用于手机、笔记本电脑以及数码相机等小功率场合。 In the 1990s, after the emergence of nickel-metal hydride batteries and lithium batteries, used in mobile phones, laptops and digital cameras and other low power applications. 电动汽车对电池的要求更高,原因是:(I)需要容量大;(2)大量串并联使用;(3)电池的工作电流大且变化迅速;(4)工作环境恶劣,包括道路颠簸和单体电池之间会因为初始容量、发热以及自放电等不完全相同而导致实际容量的差异,且容量越低的电池在使用过程中越容易出现过充电和过放电,容量衰减越严重,表现出正反馈,使得电池的一致性越来越差;为了达到均衡的效果,均衡器的容量、体积和质量都大,这与车辆空间以及高的运行效率之间形成矛盾。 Higher electric vehicle battery requirements because: (I) a large capacity; (2) a large number of series and parallel connection; operating current (3) is large and rapid changes in the battery; poor (4) the working environment, including road bumps and will be between the cells since the initial capacity and self-discharge heat resulting from the difference is not the same as actual capacity, the battery capacity is low and more easily occur in the course of overcharge and overdischarge, the more serious capacity fading, exhibit positive feedback, so that the consistency of the battery is getting worse; in order to achieve equilibrium effect, the capacity of the equalizer, the volume and mass are large, this contradiction is formed between the vehicle and the space and a high operating efficiency.

[0004] 由于锂电池的过充电能力较弱,不能像铅酸电池一样通过充电后期的涓流充电实现均衡,所以即便在电池出厂时进行了严格的筛选,使用一段时间后,单体电池之间的容量依然会出现差异,这样在充电过程中,势必出现部分电池先充满电的现象发生。 [0004] As the lithium battery overcharge weak, not like as lead-acid battery trickle charge through late charge to achieve a balanced, so even a rigorous screening at the battery factory, after a period of use, the single cell capacity difference between the still occur, so during the charging process, is bound to appear before the battery is fully charged part of the phenomenon. 基于电池组端电压的充电方法由于并不能及时有效地得知电池组中是否有个别电池已经充满电,使得先充满电的电池出现过充电。 Based on the charging method of the battery terminal voltage due to the timely and effective manner not known whether individual battery pack battery is fully charged, a fully charged battery such that the first overcharge. 即便是铅酸电池,采用基于端电压的充电模式也会因为发生了严重的过充电而导致电池大量发热和电池的容量衰减迅速,寿命严重缩短。 Even the lead-acid battery, the terminal voltage based charging mode also because of a serious cause battery overcharging the battery capacity and large heat rapidly decay, seriously shorten life.

【发明内容】 [SUMMARY]

[0005] 本发明的目的是提供一种调整电池充电电压的电源和方法,它具有绿色化概念,没有容量的瓶颈限制,特别适合于需要大容量充电机的场合,具有很强的实用性。 [0005] The object of the present invention is to provide a method and a battery charging voltage power adjustment, which has green concept, the bottleneck is not limited capacity, particularly suitable for applications requiring a large-capacity charger, is very practical.

[0006] 为了解决背景技术所存在的问题,本发明是采用以下技术方案: [0006] In order to solve the problems of the background art, the present invention adopts the following technical solution:

[0007] 一种调整电池充电电压的电源,其包括蓄电池、电压调整单元和控制单元,所述蓄电池一端连接电压调整单元,另一端接地,所述控制单元连接电压调整单元,并且通过电压调整单元与蓄电池相连接,所述控制单元用于根据蓄电池的充电状态,调用内置于控制单元内的查找表,查找到蓄电池的充电状态对应的控制信息,产生相应的控制信号,传输到电压调整单元,所述电压调整单元根据所述控制信号,产生对应的电压。 [0007] A battery charging voltage to adjust the power supply, which includes a battery, a voltage adjusting unit and a control unit, connected to said battery end voltage adjusting means, the other end, the control unit is connected to voltage adjustment means, and by the voltage adjusting means is connected to the battery, the control unit according to the state of charge of the battery, call built in the control unit in the lookup table, find the state of charge of the battery corresponding to the control information, generates a corresponding control signal, transmitted to the voltage adjusting means, the voltage adjusting unit according to the control signal, generating a corresponding voltage. [0008] 进一步地,所述电压调整单元在依次接收到控制单元传输的电压调整信号,所依次产生的对应的电压为依次递增。 [0008] Further, the voltage adjustment unit sequentially receives a voltage adjustment signal to the control unit for transmission, a corresponding voltage is generated sequentially in ascending order.

[0009] 进一步地,所述电压调整单元在依次接收到控制单元传输的电压调整信号,所依次产生的对应的电压为依次等额递增。 [0009] Further, the voltage adjustment unit sequentially receives a voltage adjustment signal to the control unit for transmission, a corresponding voltage is generated successively in equal increments sequentially.

[0010] 进一步地,所述控制单元为中央处理器、微处理器或者单片机其中之一。 [0010] Further, the control unit is a central processing unit, a microprocessor or microcontroller which one.

[0011] 一种调整电池充电电压的方法,其包括: A method for adjusting the battery charging voltage [0011], comprising:

[0012] 向待充电的蓄电池两端依次施加递增的电压,直到蓄电池两端电压达到充电终止值。 [0012] is applied to both ends of the battery voltage increment to be charged in sequence, until the voltage across the battery reaches the charge termination value. [0013] 进一步地,向待充电的蓄电池两端依次施加递增的电压的方式为依次等额递增。 [0013] Further, the embodiment is applied sequentially increasing voltages is equal increments to the ends of the battery to be charged sequentially.

[0014] 本发明提供一种调整电池充电电压的电源和方法,使蓄电池寿命大大延长,并能使蓄电池充足电能。 [0014] The present invention provides a method of adjusting a power supply voltage and battery charging method, the battery life is greatly extended, and allows sufficient battery power.

【附图说明】 BRIEF DESCRIPTION

[0015] 下面将结合附图及实施例对本发明作进一步说明,附图中: [0015] The accompanying drawings and the following embodiments of the present invention is further illustrated drawings in which:

[0016] 图I是本发明实施例一种调整电池充电电压的电源的模块示意图 [0016] Figure I is a block embodiment of a method of adjusting a power supply voltage of the battery charging embodiment of the present invention, a schematic view of

【具体实施方式】 【detailed description】

[0017] 请参阅图1,其是本发明实施例一种调整电池充电电压的电源的模块示意图。 [0017] Referring to FIG. 1, which is a module according to the present invention a method for adjusting the charging voltage of the power supply battery of FIG.

[0018] 一种调整电池充电电压的电源,其包括蓄电池11、电压调整单元12和控制单元 [0018] A battery charging voltage to adjust the power supply, which includes a battery 11, a voltage adjusting unit 12 and the control unit

13。 13. 其中,所述控制单元为中央处理器、微处理器或者单片机其中之一。 Wherein said control unit is a central processing unit, a microprocessor or microcontroller which one. 所述蓄电池11 一端连接电压调整单元12,另一端接地,所述控制单元13连接电压调整单元12,并且通过电压调整单元12与蓄电池11相连接。 The battery 11 is connected one end of the voltage adjusting unit 12, the other end, the control unit 13 is connected to the voltage adjusting unit 12, and is connected through the voltage adjusting unit 12 and the battery 11.

[0019] 所述控制单元13用于根据蓄电池11的充电状态,调用内置于控制单元13内的查找表,查找到蓄电池11的充电状态对应的控制信息,产生相应的控制信号,传输到电压调整单元12,所述电压调整单元12根据所述控制信号,产生对应的电压。 [0019] The control unit 13 according to the state of charge of the battery 11, call the built-in look-up table in the control unit 13, to find the state of charge of the battery 11 corresponding to the control information, generates a corresponding control signal is transmitted to the voltage regulator unit 12, the voltage adjusting unit 12 corresponding to the voltage of the control signal, generated according to.

[0020] 所述电压调整单元12在依次接收到控制单元13传输的电压调整信号,所依次产生的对应的电压为依次递增。 [0020] The voltage adjusting unit 12 sequentially receives the voltage adjustment signal transmission control unit 13, a corresponding voltage is generated sequentially in ascending order. 当然,较优地,所述电压调整单元12依次产生的对应的电压为依次等额递增。 Of course, more, a voltage corresponding to the voltage adjusting unit 12 is sequentially generated successively in equal increments.

[0021] 本发明还提供一种调整电池充电电压的方法,其包括:向待充电的蓄电池两端依次施加递增的电压,直到蓄电池两端电压达到充电终止值。 [0021] The present invention further provides a method for adjusting the battery charging voltage, comprising: applying a voltage sequentially increasing toward both ends of the battery to be charged until the voltage across the battery reaches the charge termination value.

[0022] 较优地,向待充电的蓄电池两端依次施加递增的电压的方式为依次等额递增。 [0022] Jiaoyou, the embodiment is applied sequentially increasing voltages is equal increments to the ends of the battery to be charged sequentially.

[0023] 一种调整电池充电电压的方法,其具体操作步骤为:1、首先充电设备对蓄电池进行无冲击式增加充电电流,直到充电电流达到充电电流上限值,此电流上限值不大于蓄电池的最大允许充电电流值;2、然后以此时的蓄电池端电压为第一阶梯的恒压值,接下来充电设备进入恒压控制阶段;3、随着充电过程的进行,在蓄电池上的充电电流会逐步减小,一旦充电电流小于充电电流下限值后,充电设备就提高充电电压,从而引起充电电流的增加; [0023] A method for adjusting the battery charging voltage, specific steps are as follows: 1, First, the battery charging apparatus for charging current without increasing impact, charging until the charging current reaches the current limit and the upper limit of this current is not greater than maximum allowable battery charging current value; 2, then the battery terminal voltage at this time is a constant value of the first step, the charging apparatus into the next stage of the constant voltage control; 3, as the charging process, the battery on the charging current decreases gradually, once the charging current is smaller than the lower limit value of the charging current, the charging voltage of the charging device can increase, causing an increase in the charging current;

4、一旦蓄电池上的充电电流达到充电电流上限值时,再以此时的蓄电池上的端电压为下一阶梯的恒压值,充电设备进入下一恒压控制阶段;5、这样周期性用阶梯式蓄电池两端电压上升的恒压控制来给蓄电池充电,直到蓄电池端电压达到充电终止值;6、然后维持充电终止值进行恒压控制阶段,直至充电电流减小到设定的充电结束电流值;7、充电设备自动转入浮充工作状态,整个充电过程结束。 4, once the charging current on the battery charging current reaches upper limit value, then the terminal voltage on a battery as a constant value at this time is the next step, the charging voltage control apparatus proceeds to the next stage; 5, so that periodic constant voltage control with the stepwise increase in the voltage across the battery to charge the battery until the battery terminal voltage reaches the charge termination value; 6, then the value of the maintenance charge termination constant voltage control stage until the charge current is reduced to set the charging end current; 7, charging device automatically transferred to the floating working state, the end of the whole charging process.

[0024] 本具体实施方式的原理为:在整个充电过程中,充电设备主要是通过不断提高恒压控制的恒压值来完成充电过程,从本质上而言属于恒压控制方法,只是其恒压值产生的充电电流是蓄电池允许范围内进行调整的,这种充电方法避开了蓄电池由于其电池内阻的交流特性而引起的较大范围的电流波动,蓄电池本身对电压控制的作用就象增加了一个大容量的电容器,对提高电压控制精度和稳定性相当有利。 [0024] DETAILED the principles of the present embodiment is: in the whole charging process, charging apparatus charging process is accomplished primarily through the continuous improvement of the constant voltage control constant value, the constant voltage control method Essentially belongs, except that the constant a charging current is generated by a battery voltage value within an allowable range of adjustment, this charging method avoids large current fluctuation range of the battery because of its ac characteristics caused by the internal resistance of the battery, the battery itself as the role of a voltage controlled addition of a large-capacitance capacitor, the voltage controlled quite favorable to improve the precision and stability. 加上充电机直流回路不含高频谐波分量和不会产生毛刺尖峰,这样在充电期间,蓄电池不易分解水和消耗电能,且不易使极板上的活性物质大量脱落,从而使蓄电池寿命大大延长,并能使蓄电池充足电能。 DC charger circuit coupled high-frequency harmonic components and free of burrs without spikes, so that during charging, the battery power consumption and easy decomposition of water, and less of the active material off a large number of the plates, so that the battery life is greatly extended, and allows sufficient battery power.

[0025] 本具体实施方式的理论基础是蓄电池对电压的灵敏度低于对电流的灵敏度,蓄电池充电电压的稳定对蓄电池延长寿命是至关重要的。 Theory [0025] This particular embodiment is the battery voltage is lower than the sensitivity of the sensitivity to current, a stable voltage to charge the battery to extend the life of the battery is critical. 使用中在保持恒压控制的基础上,不让充电电流大于蓄电池的最大允许充电电流,充电电压的阶梯式的增加是根据充电电流的实际情况,由充电机自动设置。 Use while maintaining the constant voltage control, the charging to prevent stepped increases the maximum allowable charging current, the charging voltage of the battery current is greater than the actual charging current is automatically provided by the charger. 从蓄电池的化学特性上看,它充电时间不是最短的,但对电池充电的综合指标是最佳的,同时对延长蓄电池的寿命也是非常有效的。 From the chemical characteristics of the battery's point of view, it is not the shortest charge time, but the composite indicator to charge the battery is best, while prolonging battery life is also very effective.

[0026] 以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。 [0026] The above description is only preferred embodiments of the present invention, it is not intended to limit the invention to those skilled in the art, the present invention may have various changes and variations. 凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的权利要求范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the invention as claimed in claims.

Claims (6)

  1. 1. 一种调整电池充电电压的电源,其特征在于,包括蓄电池、电压调整单元和控制单元,所述蓄电池一端连接电压调整单元,另一端接地,所述控制单元连接电压调整单元,并且通过电压调整单元与蓄电池相连接,所述控制单元用于根据蓄电池的充电状态,调用内置于控制单元内的查找表,查找到蓄电池的充电状态对应的控制信息,产生相应的控制信号,传输到电压调整单元,所述电压调整单元根据所述控制信号,产生对应的电压。 1. A method of adjusting the battery charging voltage supply, characterized in that includes a battery, a voltage adjusting unit and a control unit, connected to said battery end voltage adjusting means, the other end, the control unit is connected to voltage adjustment means, and the voltage adjusting means connected to the battery, the control unit according to the state of charge of the battery, call a lookup table built in the control unit, the state of charge of the battery to find the corresponding control information, generates a corresponding control signal is transmitted to the voltage regulator unit, the voltage adjusting unit according to the control signal, generating a corresponding voltage.
  2. 2.根据权利要求I所述的一种调整电池充电电压的电源,其特征在于,所述电压调整单元在依次接收到控制单元传输的电压调整信号,所依次产生的对应的电压为依次递增。 I 2. A method of adjusting the power supply battery charging voltage, wherein the voltage adjusting means sequentially receives a voltage adjustment signal to the control unit for transmission, the corresponding voltage is generated sequentially in ascending order of the claims.
  3. 3.根据权利要求2所述的一种调整电池充电电压的电源,其特征在于,所述电压调整单元在依次接收到控制单元传输的电压调整信号,所依次产生的对应的电压为依次等额递+¾>曰o The battery charging method of adjusting the voltage of the supply of claim 2, wherein said voltage adjusting means sequentially receiving the control voltage adjustment signal transmission unit, corresponding to the generated voltage is sequentially delivered sequentially matching + ¾> said o
  4. 4.根据权利要求I所述的一种调整电池充电电压的电源,其特征在于,所述控制单元为中央处理器、微处理器或者单片机其中之一。 The method for adjusting the charging voltage of the battery power source according to claim I, wherein said control unit is a central processing unit, a microprocessor or microcontroller which one.
  5. 5. —种调整电池充电电压的方法,其特征在于,包括: 向待充电的蓄电池两端依次施加递增的电压,直到蓄电池两端电压达到充电终止值。 5 - method to adjust the battery charging voltage, characterized by comprising: sequentially applying a voltage to both ends of increasing the battery to be charged until the voltage across the battery reaches the charge termination value.
  6. 6.根据权利要求5所述的一种调整电池充电电压的方法,其特征在于,向待充电的蓄电池两端依次施加递增的电压的方式为依次等额递增。 A method according to adjust the battery charging voltage according to claim 5, characterized in that, the way to increasing the voltage applied to both ends of the battery to be charged sequentially to sequentially equal increments.
CN 201110049741 2011-03-02 2011-03-02 Power source and method for regulating charging voltage of battery CN102655344A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1327287A (en) * 2000-06-06 2001-12-19 深圳市安圣电气有限公司 Rectified power source having step regulated cell charging voltage
CN1813386A (en) * 2004-02-25 2006-08-02 核心技术国际有限公司 Charger for secondary battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1327287A (en) * 2000-06-06 2001-12-19 深圳市安圣电气有限公司 Rectified power source having step regulated cell charging voltage
CN1813386A (en) * 2004-02-25 2006-08-02 核心技术国际有限公司 Charger for secondary battery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
章玉燕 吕光: "《日本电子电路精选》", 31 December 1989 *

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