CN203983968U - 一种磷酸铁锂电池组保护板 - Google Patents
一种磷酸铁锂电池组保护板 Download PDFInfo
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- CN203983968U CN203983968U CN201420383791.6U CN201420383791U CN203983968U CN 203983968 U CN203983968 U CN 203983968U CN 201420383791 U CN201420383791 U CN 201420383791U CN 203983968 U CN203983968 U CN 203983968U
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- 239000005955 Ferric phosphate Substances 0.000 title claims abstract description 27
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K Iron(III) phosphate Chemical compound 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[Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 title claims abstract description 27
- 229940032958 ferric phosphate Drugs 0.000 title claims abstract description 27
- 229910000399 iron(III) phosphate Inorganic materials 0.000 title claims abstract description 27
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 abstract description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000284 resting Effects 0.000 description 1
Abstract
本实用新型涉及一种磷酸铁锂电池组保护板,包括用于连接电池组的充放电电路,充放电电路中设有高压盒模块和采集控制模块。高压盒模块包括:两个接触器:一个充电接触器、一个放电接触器,两个二极管:一个充电二极管、一个放电二极管;两个接触器串联,充电二极管与充电接触器并联,放电二极管与放电接触器并联,两个二极管反向串联,采集控制模块控制连接两个接触器。它是应用于100安培至400安培的大电流磷酸铁锂后备电源系统的控制保护板,具有完善的保护功能,保护后备电池组和通信设备的正常运行,其保护功能强、过流能力大,运行安全可靠、设计成本低。
Description
技术领域
[0001] 本实用新型涉及一种磷酸铁锂电池组保护板,属于磷酸铁锂电池组保护领域。
背景技术
[0002] 在传统的通信基站,包括宏基站、室内站、RRU等都采用铅酸电池作为后备电源。近些年,随着公众对环境保护意识的不断提高,铅酸电池的使用越来越不被公众认可,在通信领域,也有越来越多的磷酸铁锂电池代替传统的铅酸电池。但磷酸铁锂电池因其保护系统的复杂性,限制了其应用场合的扩展。至今为止,因100安培以下保护板的设计的简洁性,通信领域磷酸铁锂电池更多是发展48V50Ah电池组。但通信领域更多的应用场合是48V150Ah、48V200Ah、48V300Ah等大容量电池的应用,如果直接将电动车领域的保护板应用于通信领域,会出现众多问题,例如:成本高、通信不满足通信领域、功能不适应等。目前市场上没有专门针对磷酸铁锂电池组大电流的保护板的设计。
实用新型内容
[0003] 本实用新型的目的是提供一种磷酸铁锂电池组保护板,用以解决没有专门对磷酸铁锂电池组在大电流的情况下进行有效保护的问题。
[0004] 为实现上述目的,本实用新型的方案提供一种磷酸铁锂电池组保护板,包括用于连接电池组的充放电电路,充放电电路中设有高压盒模块和采集控制模块。
[0005] 高压盒模块包括:两个接触器:一个充电接触器、一个放电接触器,两个二极管:一个充电二极管、一个放电二极管;两个接触器串联,充电二极管与充电接触器并联,放电二极管与放电接触器并联,两个二极管反向串联;采集控制模块控制连接所述两个接触器。
[0006] 采集控制模块为BMS,BMS连接各单体电池接线端子,以及一个电流传感器,电流传感器为串入充放电电路的分流器或者霍尔传感器。
[0007] 磷酸铁锂电池组保护板还包括显示模块,显示模块与采集控制模块连接,显示模块包括LED指示灯和IXD显示屏。
[0008] 高压盒模块还包括熔断器,熔断器串入充放电电路。
[0009] 本实用新型针对磷酸铁锂电池组在大电流的情况下,设计的一种保护板,具有完善的保护功能,保护后备电池组和通信设备的正常运行,保护功能强、过流能力大,运行安全可靠、设计成本低。
附图说明
[0010] 图1是本实用新型原理图。
具体实施方式
[0011] 下面结合附图对本实用新型做进一步详细的说明。
[0012] 本实用新型设计一种磷酸铁锂电池组保护板,包括用于连接电池组的充放电电路,充放电电路中设有高压盒模块和采集控制模块。
[0013] 高压盒模块包括:两个接触器:一个充电接触器、一个放电接触器,两个二极管:一个充电二极管、一个放电二极管;两个接触器串联,充电二极管与充电接触器并联,放电二极管与放电接触器并联,两个二极管反向串联,采集控制模块分别控制连接充电接触器和放电接触器。
[0014] 基于以上技术方案,给出以下具体实施方式,以16串磷酸铁锂电池组为例。
[0015] 图1为本实用新型原理图,本实用新型是针对100A至400A大电流而设计的,如图1所示,16串磷酸铁锂电池组大电流保护板的BMS通过电压检测排线和温度检测排线与16串磷酸铁锂电池组连接,BMS通过电流采集排线与分流器连接,能够对16串磷酸铁锂电池组的电压、温度和电流进行实时检测和数据存储,其中包含有16串电池组端电压、电池组充放电电流、16支单体电池电压、电池温度。
[0016] BMS采集到的电压、温度信号和分流器采集到的电流信号通过显示面板排线与LED指示灯连接,通过CAN通讯线与LCD显示屏连接。LED指示灯用于显示系统运行状态、电池容量和报警信息;LCD显示屏用于显示电池组的详细信息,包括单体电池电压、电池组总电压和电流、系统容量、告警信息等。实现对电池组的电压、温度、电流进行采集和对电池组的运行情况进行实时监控。
[0017] 高压盒模块包括:两个接触器:一个充电接触器、一个放电接触器,两个二极管:一个充电二极管、一个放电二极管;两个接触器串联,充电二极管与充电接触器并联,放电二极管与放电接触器并联,两个二极管反向串联,BMS控制连接两个接触器。如图1所示,当需要对电池组充电时,BMS控制充电接触器得电,常开开关就会闭合,此时通过闭合的开关和二极管线路就会导通,电池组开始充电;同理,当电池组放电时,BMS控制放电接触器得电,对应的常开开关就会闭合,此时通过闭合的开关和二极管线路就会导通,电池组作为备用电源放电。
[0018] 当电池组出现异常情况,比如说电池组过充、过放、过温、过流、过压时,BMS实时采集这些异常信号,将这些信号反映到LED指示灯和LCD显示屏上,同时BMS给充电和放电接触器控制信号,使充电和放电接触器的常开开关断开,即断开整个电路,保护电池组的安全。
[0019] 如图1所示,当220V交流电源正常工作时,磷酸铁锂电池组作为备用电源,强电接线端子断开,备用电源没有投入工作;i 220V交流电源或整流器出现故障时,强电接线端子导通,备用电源启动,投入工作。磷酸铁锂电池组有工作和休眠两个状态,当电池组运行正常时,此时系统在工作状态。当电池组出现过温、过流、欠压、过压、过放、过充等异常状态时,系统进入休眠状态,BMS控制充电接触器和放电接触器同时断开常开开关,断开充放电回路,等异常状态消除后,BMS控制充电和放电接触器正常工作,使系统进入工作状态。
[0020] 以上给出了具体的实施方式,但本实用新型不局限于所描述的实施方式。本实用新型的基本思路在于上述基本方案,对本领域普通技术人员而言,根据本实用新型的教导,设计出各种变形的模型、公式、参数并不需要花费创造性劳动。在不脱离本实用新型的原理和精神的情况下对实施方式进行的变化、修改、替换和变型仍落入本实用新型的保护范围内。
Claims (4)
1.一种磷酸铁锂电池组保护板,其特征在于,所述磷酸铁锂电池组保护板包括用于连接电池组的充放电电路,充放电电路中设有高压盒模块和采集控制模块; 所述高压盒模块包括:两个接触器:一个充电接触器、一个放电接触器,两个二极管:一个充电二极管、一个放电二极管;所述两个接触器串联,充电二极管与充电接触器并联,放电二极管与放电接触器并联,两个二极管反向串联;采集控制模块控制连接所述两个接触器。
2.根据权利要求1所述的磷酸铁锂电池组保护板,其特征在于,所述采集控制模块为BMS,BMS连接各单体电池接线端子,以及一个电流传感器,所述电流传感器为串入充放电电路的分流器或者霍尔传感器。
3.根据权利要求2所述的磷酸铁锂电池组保护板,其特征在于,所述磷酸铁锂电池组保护板还包括显示模块,显示模块与采集控制模块连接,所述显示模块包括LED指示灯和IXD显示屏。
4.根据权利要求3所述的磷酸铁锂电池组保护板,其特征在于,所述高压盒模块还包括熔断器,熔断器串入充放电电路。
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