CN204179729U - A kind of communication discrete lithium battery back-up source - Google Patents
A kind of communication discrete lithium battery back-up source Download PDFInfo
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- CN204179729U CN204179729U CN201420718892.4U CN201420718892U CN204179729U CN 204179729 U CN204179729 U CN 204179729U CN 201420718892 U CN201420718892 U CN 201420718892U CN 204179729 U CN204179729 U CN 204179729U
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- 238000004891 communication Methods 0.000 title claims abstract description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
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Abstract
本实用新型涉及一种通信用分立式锂电池后备电源，包括电池组、连接在电池组一个充放电线路上的充放电电路和用于采集电池组信息的控制电路，控制电路与所述电池组集成在一个电池机箱内，所述充放电电路集成在一个控制盒内。本实用新型的优点在于：BMS驱动单元为充、放电接触器提供24V驱动电源，既可以降低BMS驱动单元的功耗，又能保障在电池组过放保护后仍可以驱动接触器继续工作。控制器通过干接点对充、放电接触器进行充放电控制，实现整个电源系统的总体充、放电保护，该控制方式简单、有效。控制电路与充放电电路各自放置，便于安装和维护，而且仅需更换充放电接触器、分流器、二极管型号，即可满足不同功率负载的需求，具备良好的负载兼容性。
The utility model relates to a discrete lithium battery backup power supply for communication, comprising a battery pack, a charging and discharging circuit connected to a charging and discharging circuit of the battery pack, and a control circuit for collecting battery pack information, the control circuit and the battery The battery pack is integrated in a battery case, and the charging and discharging circuit is integrated in a control box. The utility model has the advantages that: the BMS driving unit provides 24V driving power for the charging and discharging contactor, which can not only reduce the power consumption of the BMS driving unit, but also ensure that the contactor can still be driven to continue to work after the battery pack is over-discharged. The controller controls the charging and discharging contactor through the dry contact to realize the overall charging and discharging protection of the entire power system. This control method is simple and effective. The control circuit and the charge and discharge circuit are placed separately, which is convenient for installation and maintenance, and only need to replace the charge and discharge contactor, shunt, and diode type to meet the needs of different power loads and have good load compatibility.
Description
技术领域technical field
本实用新型涉及一种通信用分立式锂电池后备电源，属于通信后备电源技术领域。The utility model relates to a discrete lithium battery backup power supply for communication, which belongs to the technical field of communication backup power supply.
背景技术Background technique
目前在通信后备电源领域，100Ah以下电池组称之为集成式电池组，它将锂离子电池和电池管理系统集成在一个标准19英寸机箱内。电池管理系统主要采用MOS器件集成而成，通常称为保护板，其通断的电流有限，一般最大持续电流不超过100A。针对大容量分立式电池组，在基站的使用过程中，充放电电流通常达到二三百安，若想通过这么大的电流，保护板需要并联很多MOS管，这样一方面造成保护板发热问题无法解决，另一方面由于各并联MOS管之间的差异，会造成各MOS通断时间的不一致，极易造成保护板的损坏。同时现有采用多个小容量集成式电池组并联以达到级联扩容的目的，会存在模块间的环流、电池间不一致性问题。因此，目前的锂离子电池组和保护板一体化的设计形式，已不能满足大容量基站的应用需求。At present, in the field of communication backup power supply, a battery pack below 100Ah is called an integrated battery pack, which integrates a lithium-ion battery and a battery management system in a standard 19-inch chassis. The battery management system is mainly integrated with MOS devices, usually called a protection board, its on-off current is limited, and the maximum continuous current generally does not exceed 100A. For large-capacity discrete battery packs, during the use of the base station, the charge and discharge current usually reaches two to three hundred amperes. If such a large current is to be passed, the protection board needs to be connected in parallel with many MOS tubes, which will cause the protection board to heat up on the one hand. It cannot be solved. On the other hand, due to the difference between the parallel MOS tubes, the on-off time of each MOS will be inconsistent, which will easily cause damage to the protection board. At the same time, multiple small-capacity integrated battery packs are used in parallel to achieve the purpose of cascade expansion, and there will be problems of circulation between modules and inconsistency between batteries. Therefore, the current integrated design of the lithium-ion battery pack and the protection board cannot meet the application requirements of large-capacity base stations.
实用新型内容Utility model content
本实用新型的目的是提供一种通信用分立式锂电池后备电源，用以解决目前的锂离子电池组和保护板一体化的设计形式不能满足大容量基站的应用需求的问题。The purpose of this utility model is to provide a discrete lithium battery backup power supply for communication, which is used to solve the problem that the current integrated design form of lithium ion battery pack and protection board cannot meet the application requirements of large-capacity base stations.
为实现上述目的，本实用新型的方案包括一种通信用分立式锂电池后备电源，包括电池组、串接在电池组一个充放电线路上的充放电电路和用于采集电池组信息的控制电路。In order to achieve the above object, the solution of the present utility model includes a discrete lithium battery backup power supply for communication, including a battery pack, a charging and discharging circuit connected in series on a charging and discharging circuit of the battery pack, and a control for collecting battery pack information circuit.
充放电电路包括串接在充放电线路上的充电接触器、放电接触器、分流器、第一二极管、第二二极管和BMS驱动单元，充电接触器反向并联第一二极管，放电接触器反向并联第二二极管，BMS驱动单元分别控制连接充电接触器和放电接触器。The charging and discharging circuit includes a charging contactor, a discharging contactor, a shunt, a first diode, a second diode and a BMS drive unit connected in series on the charging and discharging circuit, and the charging contactor is connected in antiparallel with the first diode , the discharge contactor is anti-parallel to the second diode, and the BMS driving unit controls and connects the charging contactor and the discharge contactor respectively.
控制电路包括一个控制器和与该控制器连接的电压、温度采集模块和电流采集模块，BMS驱动单元连接控制器，电压、温度采集模块连接电池组，电流采集模块连接分流器。The control circuit includes a controller and a voltage and temperature acquisition module and a current acquisition module connected to the controller, the BMS drive unit is connected to the controller, the voltage and temperature acquisition module is connected to the battery pack, and the current acquisition module is connected to the shunt.
控制电路与所述电池组集成在一个电池机箱内，充放电电路集成在一个控制盒内。The control circuit and the battery pack are integrated in a battery case, and the charging and discharging circuit is integrated in a control box.
控制电路还包括均衡模块和用于为控制器供电的电源供应模块，电压、温度采集模块还通过均衡模块连接电池组，电源供应模块连接电池组。The control circuit also includes a balance module and a power supply module for supplying power to the controller. The voltage and temperature acquisition module is also connected to the battery pack through the balance module, and the power supply module is connected to the battery pack.
控制电路还包括与控制器连接的存储模块、拨码地址模块、RS485通信模块、RS232通信模块、声音告警模块和运行、故障、容量指示模块。The control circuit also includes a storage module connected with the controller, a dial address module, an RS485 communication module, an RS232 communication module, a sound alarm module, and an operation, fault and capacity indication module.
电源还包括与控制器连接的显示屏，显示屏也设置在所述控制盒内。The power supply also includes a display screen connected to the controller, and the display screen is also arranged in the control box.
本实用新型的优点在于：控制电路与电池组直接集成在一个电池机箱内，直接采集电池组的电压、温度、电流等信息；BMS驱动单元、分流器、接触器、二极管和显示屏集成在一个控制盒内，便于安装和维护。仅需更换充放电接触器、分流器、二极管型号，即可满足不同功率负载的应用需求，具备良好的负载兼容性。The utility model has the advantages that: the control circuit and the battery pack are directly integrated in a battery case, and information such as the voltage, temperature, and current of the battery pack is directly collected; the BMS drive unit, shunt, contactor, diode and display screen are integrated in one Inside the control box, easy to install and maintain. It only needs to replace the charging and discharging contactor, shunt, and diode models to meet the application requirements of different power loads and has good load compatibility.
BMS驱动单元为充电接触器、放电接触器提供24V驱动电源，既可以降低BMS驱动单元的功耗，又能保障在电池组过放保护后仍可以驱动接触器继续工作。The BMS drive unit provides 24V drive power for the charging contactor and discharge contactor, which can not only reduce the power consumption of the BMS drive unit, but also ensure that the contactor can continue to work after the battery pack is over-discharged.
控制器通过干接点对充电接触器、放电接触器进行充放电控制，实现整个电源系统的总体充、放电保护，该种控制方式简单、有效。The controller controls the charge and discharge of the charging contactor and the discharge contactor through the dry contact to realize the overall charge and discharge protection of the entire power system. This control method is simple and effective.
附图说明Description of drawings
图1是本实用新型实施方式结构示意图。Fig. 1 is a structural schematic diagram of an embodiment of the utility model.
具体实施方式Detailed ways
下面结合附图对本实用新型做进一步详细的说明。Below in conjunction with accompanying drawing, the utility model is described in further detail.
一种通信用分立式锂电池后备电源，包括电池组、串接在电池组一个充放电线路上的充放电电路和用于采集电池组信息的控制电路；充放电电路包括串接在充放电线路上的充电接触器、放电接触器、分流器、第一二极管、第二二极管和BMS驱动单元，充电接触器反向并联第一二极管，放电接触器反向并联第二二极管，BMS驱动单元分别控制连接充电接触器和放电接触器；控制电路包括一个控制器和与该控制器连接的电压、温度采集模块和电流采集模块，BMS驱动单元连接控制器，电压、温度采集模块连接电池组，电流采集模块连接分流器；控制电路与电池组集成在一个电池机箱内，充放电电路集成在一个控制盒内。A discrete lithium battery backup power supply for communication, comprising a battery pack, a charging and discharging circuit connected in series on a charging and discharging line of the battery pack, and a control circuit for collecting information on the battery pack; the charging and discharging circuit includes a charging and discharging circuit connected in series The charging contactor, discharging contactor, shunt, first diode, second diode and BMS drive unit on the line, the charging contactor is connected in reverse parallel with the first diode, and the discharging contactor is connected in reverse parallel with the second The diode and the BMS drive unit respectively control and connect the charging contactor and the discharge contactor; the control circuit includes a controller and a voltage and temperature acquisition module and a current acquisition module connected to the controller, the BMS drive unit is connected to the controller, voltage, The temperature acquisition module is connected to the battery pack, and the current acquisition module is connected to the shunt; the control circuit and the battery pack are integrated in a battery case, and the charging and discharging circuit is integrated in a control box.
基于以上技术方案，结合附图，给出以下一个具体实施方式。Based on the above technical solutions and in conjunction with the accompanying drawings, the following specific implementation is given.
本实用新型的结构示意图如图1所示，该电源包括15串或16串大容量锂电池组、充放电电路和控制电路。充放电电路串接在该电池组一个充放电线路上，控制电路用于采集电池组信息。The structural diagram of the utility model is shown in Figure 1, the power supply includes 15 strings or 16 strings of high-capacity lithium battery packs, charging and discharging circuits and control circuits. The charging and discharging circuit is serially connected to a charging and discharging circuit of the battery pack, and the control circuit is used for collecting battery pack information.
充放电电路包括串接在一条充放电线路上(正负极线路都可，如图1所示为电源负极线路上)的充电接触器、放电接触器和分流器，充电接触器反向并联一个二极管，放电接触器反向并联另一个二极管。当锂电池组发生过充情况时，BMS驱动单元控制充电接触器断开，放电接触器与充电接触器并联的二极管形成一个放电回路；当锂电池组发生过放时，充电接触器与放电接触器并联的二极管形成一个充电通路。BMS驱动单元分别控制连接充电接触器和放电接触器，为充电接触器、放电接触器提供24V驱动电源，以及用以控制充放电接触器的通断，实现整个电源系统的总体充、放电保护。The charging and discharging circuit includes a charging contactor, a discharging contactor and a shunt connected in series on a charging and discharging line (both positive and negative lines are acceptable, as shown in Figure 1, on the negative line of the power supply), and a charging contactor is connected in reverse parallel. Diode, another diode in antiparallel to the discharge contactor. When the lithium battery pack is overcharged, the BMS drive unit controls the charging contactor to disconnect, and the discharge contactor and the diode in parallel with the charging contactor form a discharge circuit; when the lithium battery pack is overdischarged, the charging contactor contacts the discharge The diodes connected in parallel form a charging path. The BMS drive unit controls and connects the charging contactor and the discharging contactor respectively, provides 24V driving power for the charging contactor and the discharging contactor, and controls the on-off of the charging and discharging contactor, so as to realize the overall charging and discharging protection of the entire power system.
控制电路包括一个控制器，可以是单片机，也可以是其他类型的控制器，这里以单片机为例，和与该单片机连接的电压、温度采集模块、电流采集模块、均衡模块、电源供应模块、存储模块、拨码地址模块、RS485通信模块、RS232通信模块、声音告警模块和运行、故障、容量指示模块。The control circuit includes a controller, which can be a single-chip microcomputer or other types of controllers. Here, a single-chip microcomputer is taken as an example, and a voltage and temperature acquisition module, a current acquisition module, an equalization module, a power supply module, and a storage module connected to the single-chip microcomputer are used. module, dial address module, RS485 communication module, RS232 communication module, sound alarm module and operation, fault, capacity indication module.
单片机通过干接点1和干接点2连接BMS驱动单元，用以控制BMS驱动单元的工作状态；电压、温度采集模块一路直接连接电池组，用以实时采集电池组电压和温度信息，另一路通过均衡模块连接电池组，用以提供充电过程中的电压均衡功能；单片机通过电流采集模块连接分流器，用以采集电池组充放电电流；电源供应模块的两端分别连接单片机和电池组，用于为单片机提供电能。RS232及RS485通信接口，用以实现该电源系统的级联扩容。为了实时显示电池组的状况信息，单片机还连接一个显示屏。The MCU is connected to the BMS drive unit through dry contact 1 and dry contact 2 to control the working status of the BMS drive unit; one channel of the voltage and temperature acquisition module is directly connected to the battery pack for real-time acquisition of battery pack voltage and temperature information, and the other channel is through the equalizer The module is connected to the battery pack to provide the voltage equalization function during the charging process; the single-chip microcomputer is connected to the shunt through the current acquisition module to collect the charging and discharging current of the battery pack; the two ends of the power supply module are respectively connected to the single-chip microcomputer and the battery pack for The microcontroller provides power. RS232 and RS485 communication interfaces are used to realize cascade expansion of the power supply system. In order to display the status information of the battery pack in real time, the microcontroller is also connected with a display screen.
控制电路与大容量锂离子电池组集成在一个电池机箱内，负责实时采集电池组的电压、温度，还可提供充电过程中的电压均衡功能。BMS驱动单元、充电接触器、放电接触器、两个二极管、分流器、显示屏统一集成在一个2U控制盒内。通过对控制电路和充放电电路的各自放置，使结构紧凑、集成度高，便于安装和维护。而且，仅需更换2U控制盒内的充放电接触器、二极管及分流器的型号，即可实现不同容量电池组的充放电保护。同时单片机通过干接点连接BMS驱动单元，进而对充放电接触器进行控制，及时有效的对锂电池组进行充放电保护，其控制方式简单、有效。从而保证了整个大容量分立式锂离子后备电源系统工作稳定、可靠，可广泛作为大容量通信基站的后备电源使用。The control circuit and the large-capacity lithium-ion battery pack are integrated in a battery case, which is responsible for collecting the voltage and temperature of the battery pack in real time, and also provides the voltage equalization function during the charging process. BMS drive unit, charging contactor, discharging contactor, two diodes, shunt and display are integrated in a 2U control box. By separately placing the control circuit and the charging and discharging circuit, the structure is compact, the integration is high, and the installation and maintenance are convenient. Moreover, the charging and discharging protection of battery packs with different capacities can be realized by only changing the models of the charging and discharging contactors, diodes and shunts in the 2U control box. At the same time, the single-chip microcomputer connects the BMS drive unit through the dry contact, and then controls the charging and discharging contactor, and timely and effectively protects the lithium battery pack from charging and discharging. The control method is simple and effective. Therefore, the entire large-capacity discrete lithium-ion backup power supply system is guaranteed to work stably and reliably, and can be widely used as a backup power supply for large-capacity communication base stations.
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。Specific implementations have been given above, but the utility model is not limited to the described implementations. The basic idea of the present utility model lies in the above-mentioned basic scheme. For those of ordinary skill in the art, according to the teaching of the present utility model, it does not need to spend creative labor to design various deformation models, formulas and parameters. Changes, modifications, replacements and modifications to the embodiments without departing from the principle and spirit of the present utility model still fall within the protection scope of the present utility model.
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2014
- 2014-11-25 CN CN201420718892.4U patent/CN204179729U/en not_active Expired - Lifetime
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| CN107706963A (en) * | 2015-08-03 | 2018-02-16 | 成都宇能通能源开发有限公司 | A kind of battery pack parallel circuit |
| CN105048570B (en) * | 2015-08-03 | 2017-08-25 | 成都宇能通能源开发有限公司 | It is a kind of support variety classes can any in parallel complete alternation control system of charge and discharge device method |
| CN105048573B (en) * | 2015-08-03 | 2017-12-01 | 成都宇能通能源开发有限公司 | A kind of circuit for realizing different battery pack complete alternation discharge and recharges |
| CN107492931A (en) * | 2015-08-03 | 2017-12-19 | 成都宇能通能源开发有限公司 | A kind of battery pack parallel operation method |
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| CN107565619A (en) * | 2016-07-01 | 2018-01-09 | 深圳市沃特玛电池有限公司 | A kind of control method of BMS charge and discharges electric contactor and the charge and discharge electric contactor |
| US11462917B1 (en) | 2021-12-10 | 2022-10-04 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
| US11689048B1 (en) | 2021-12-10 | 2023-06-27 | NDSL, Inc. | Methods, systems, and devices for maintenance and optimization of battery cabinets |
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