技术领域technical field
本实用新型涉及一种电池管理系统，尤其涉及一种具有蓝牙通讯功能的电池管理系统。The utility model relates to a battery management system, in particular to a battery management system with a bluetooth communication function.
背景技术Background technique
目前，锂电池技术得到大力发展和广泛使用，而锂电池使用时必须配有保护板或者电池管理系统。现有市场上锂电池大多是采用硬件保护板，不能实时查看电池组的详细信息，既没有电池管理功能，也没有电池组容量学习功能。当电池组组装成整车之后，用户无法查看电池内部信息，不便于用户监控电池的使用状态，以及不利于用户对电池的维护。而现有的一些电池管理系统，也存在着查看数据不便，对系统内的主板模块的高压保护不足等缺陷。At present, lithium battery technology has been vigorously developed and widely used, and lithium batteries must be equipped with protective boards or battery management systems when used. Most of the lithium batteries in the existing market use hardware protection boards, and the detailed information of the battery pack cannot be checked in real time. There is neither battery management function nor battery pack capacity learning function. When the battery pack is assembled into a complete vehicle, the user cannot view the internal information of the battery, which is not convenient for the user to monitor the use status of the battery, and is not conducive to the maintenance of the battery by the user. However, some existing battery management systems also have defects such as inconvenient data viewing and insufficient high-voltage protection for the motherboard modules in the system.
实用新型内容Utility model content
为克服现有技术的不足及存在的问题，本实用新型提供一种具有蓝牙通讯功能的电池管理系统，该电池管理系统设置有蓝牙模块，可方便地与具有蓝牙模块的智能终端进行通讯，便于用户查看电池的实时数据信息；另外，该电池管理系统在与其他终端进行通讯时，可有效防止高压信号的输入损坏电池管理系统的主板，从而可有效提高电池管理系统的工作可靠性和使用寿命。In order to overcome the deficiencies and existing problems of the prior art, the utility model provides a battery management system with a Bluetooth communication function. The user checks the real-time data information of the battery; in addition, when the battery management system communicates with other terminals, it can effectively prevent the input of high-voltage signals from damaging the main board of the battery management system, thereby effectively improving the working reliability and service life of the battery management system .
本实用新型是通过以下技术方案实现的：一种具有蓝牙通讯功能的电池管理系统，用于对电池模块进行充放电管理，包括充电器，依次连接的模拟前端、主控模块、通讯模块以及蓝牙模块，蓝牙模块的供电端与所述电池模块的正极B+连接，所述模拟前端的正输入端、负输入端分别与电池模块的正极B+、负极B-连接，所述充电器的正输出端、负输出端分别与电池模块的正极B+、负极B-连接；所述电池管理系统还包括有充电场效应管Q1、放电场效应管Q2以及移动终端，所述移动终端与所述蓝牙模块建立蓝牙通讯连接；所述充电场效应管Q1的栅极G1、放电场效应管Q2的栅极G2均与所述主控模块连接，所述充电场效应管Q1的漏极D1与所述充电器的负输入端连接，所述充电场效应管Q1的源极S1与所述放电场效应管Q2的漏极D2连接，所述放电场效应管Q2的源极S2与所述电池模块的负极连接。其中，所述电池模块优选为锂电池模块。The utility model is realized through the following technical solutions: a battery management system with bluetooth communication function, which is used for charge and discharge management of the battery module, including a charger, an analog front end connected in sequence, a main control module, a communication module and a bluetooth module, the power supply terminal of the Bluetooth module is connected to the positive pole B+ of the battery module, the positive input terminal and negative input terminal of the analog front end are respectively connected to the positive pole B+ and negative pole B- of the battery module, and the positive output terminal of the charger , the negative output terminals are respectively connected to the positive pole B+ and the negative pole B- of the battery module; the battery management system also includes a charging field effect transistor Q1, a discharging field effect transistor Q2 and a mobile terminal, and the mobile terminal is established with the Bluetooth module Bluetooth communication connection; the grid G1 of the charging field effect transistor Q1 and the grid G2 of the discharging field effect transistor Q2 are all connected to the main control module, and the drain D1 of the charging field effect transistor Q1 is connected to the charger connected to the negative input terminal of the charging field effect transistor Q1, the source S1 of the charging field effect transistor Q1 is connected to the drain D2 of the discharging field effect transistor Q2, and the source S2 of the discharging field effect transistor Q2 is connected to the negative pole of the battery module . Wherein, the battery module is preferably a lithium battery module.
优选地，所述通讯模块包括依次连接的通讯输入端、通讯控制开关模块以及通讯输出端，还包括有稳压模块以及高压保护模块，所述通讯控制开关模块具有用于与所述蓝牙模块的供电回路连接的开关控制端TR，所述稳压模块的两输入端分别与所述通讯输入端的两接线端TX、RX连接，所述通讯控制开关模块的两输出端分别与所述通讯输出端的两接线端TXD、RXD连接,所述高压保护模块的两输入端分别与所述通讯控制开关模块以及所述接线端RXD连接；进一步地，所述通讯模块还包括有ESD防护模块，该ESD防护模块的两输入端分别与所述通讯输出端的两接线端TXD、RXD连接。Preferably, the communication module includes a communication input terminal, a communication control switch module and a communication output terminal connected in sequence, and also includes a voltage stabilizing module and a high-voltage protection module, and the communication control switch module has a connection with the Bluetooth module. The switch control terminal TR connected to the power supply circuit, the two input terminals of the voltage stabilizing module are respectively connected to the two terminals TX and RX of the communication input terminal, and the two output terminals of the communication control switch module are respectively connected to the communication output terminal The two terminals TXD and RXD are connected, and the two input terminals of the high voltage protection module are respectively connected to the communication control switch module and the terminal RXD; further, the communication module also includes an ESD protection module, the ESD protection The two input ends of the module are respectively connected with the two terminals TXD and RXD of the communication output end.
较佳地，所述移动终端为智能手机，所述蓝牙模块优选为基于BLE4.0的蓝牙模块；所述模拟前端为基于芯片BQ76940的模拟前端。Preferably, the mobile terminal is a smart phone, the bluetooth module is preferably a bluetooth module based on BLE4.0; the analog front end is an analog front end based on chip BQ76940.
优选地，所述主控模块中的主控芯片为单片机；所述单片机芯片型号优选为Atmega328P。Preferably, the main control chip in the main control module is a single-chip microcomputer; the chip model of the single-chip microcomputer is preferably Atmega328P.
本实用新型提供的电池管理系统，其设置有蓝牙模块，便于与具有蓝牙模块的智能手机进行蓝牙通讯连接，从而方便用户在手机上查看电池的实时数据信息，便于用户对电池进行充放电的管理维护；另外，电池管理系统中的通讯模块中具有高压保护模块与ESD防护模块，可有效保护电池管理系统的主控模块在与外接设备的连接通讯中被高压信号损坏，从而可有效提高电池管理系统的工作可靠性和使用寿命。The battery management system provided by the utility model is equipped with a bluetooth module, which is convenient for carrying out bluetooth communication connection with a smart phone with a bluetooth module, so that the user can check the real-time data information of the battery on the mobile phone, and is convenient for the user to charge and discharge the battery. Maintenance; In addition, the communication module in the battery management system has a high-voltage protection module and an ESD protection module, which can effectively protect the main control module of the battery management system from being damaged by high-voltage signals during connection and communication with external devices, thereby effectively improving battery management. System reliability and service life.
附图说明Description of drawings
图1是本实用新型实施例所述电池管理系统的结构模块示意框图；Fig. 1 is a schematic block diagram of the structural modules of the battery management system according to the embodiment of the present invention;
图2是本实用新型实施例中所述通讯模块的示意框图；Fig. 2 is a schematic block diagram of the communication module described in the embodiment of the present invention;
图3是本实用新型实施例中所述通讯模块的具体电路图。Fig. 3 is a specific circuit diagram of the communication module in the embodiment of the present invention.
其中，附图标号为：1-稳压模块，2-通讯控制开关模块，3-高压保护模块，4-ESD防护模块。Wherein, the reference numerals of the drawings are: 1-voltage stabilizing module, 2-communication control switch module, 3-high voltage protection module, 4-ESD protection module.
具体实施方式detailed description
为了便于本领域技术人员的理解，以下结合附图和具体实施例对本实用新型作进一步详细描述。In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
如附图1所示，一种具有蓝牙通讯功能的电池管理系统，用于对电池模块进行充放电管理，包括充电器，依次连接的模拟前端(AFE)、主控模块、通讯模块以及蓝牙模块，蓝牙模块的供电端与所述电池模块的正极B+连接，所述模拟前端的正输入端、负输入端分别与电池模块的正极B+、负极B-连接，所述充电器的正输出端、负输出端分别与电池模块的正极B+、负极B-连接；所述电池管理系统还包括有充电场效应管Q1、放电场效应管Q2以及移动终端，所述移动终端与所述蓝牙模块建立蓝牙通讯连接；所述充电场效应管Q1的栅极G1、放电场效应管Q2的栅极G2均与所述主控模块连接，所述充电场效应管Q1的漏极D1与所述充电器的负输入端连接，所述充电场效应管Q1的源极S1与所述放电场效应管Q2的漏极D2连接，所述放电场效应管Q2的源极S2与所述电池模块的负极连接。As shown in Figure 1, a battery management system with Bluetooth communication function is used to manage the charge and discharge of the battery module, including a charger, an analog front end (AFE), a main control module, a communication module and a Bluetooth module connected in sequence , the power supply terminal of the Bluetooth module is connected to the positive pole B+ of the battery module, the positive input terminal and the negative input terminal of the analog front end are respectively connected to the positive pole B+ and the negative pole B- of the battery module, the positive output terminal of the charger, The negative output terminals are respectively connected to the positive pole B+ and the negative pole B- of the battery module; the battery management system also includes a charging field effect transistor Q1, a discharging field effect transistor Q2 and a mobile terminal, and the mobile terminal establishes a Bluetooth connection with the Bluetooth module. Communication connection; the gate G1 of the charging field effect transistor Q1 and the gate G2 of the discharging field effect transistor Q2 are all connected to the main control module, and the drain D1 of the charging field effect transistor Q1 is connected to the charger The negative input terminal is connected, the source S1 of the charge field effect transistor Q1 is connected to the drain D2 of the discharge field effect transistor Q2, and the source S2 of the discharge field effect transistor Q2 is connected to the negative electrode of the battery module.
在本实施例中，所述电池模块优选为锂电池模块，所述移动终端优选为智能手机，所述蓝牙模块优选为基于BLE4.0的蓝牙模块，以降低功耗。利用该蓝牙模块，可以在智能手机上安装相应的APP，在该APP上通过蓝牙读取电池保护的实时数据或者进行相关保护参数的设置，大大方便了用户查看电池的实时数据信息，并方便用户对电池进行充放电的管理维护In this embodiment, the battery module is preferably a lithium battery module, the mobile terminal is preferably a smart phone, and the bluetooth module is preferably a bluetooth module based on BLE4.0 to reduce power consumption. Using the Bluetooth module, the corresponding APP can be installed on the smart phone, and the real-time data of battery protection can be read on the APP or the setting of related protection parameters can be done through Bluetooth, which greatly facilitates the user to view the real-time data information of the battery and facilitates the user Management and maintenance of charging and discharging of batteries
作为优选的实施例，为更好地保护电池管理系统中的主控模块，有效的保护电池管理系统的主控模块在与外接设备的连接通讯中被高压信号损坏，如附图2所示，所述通讯模块包括依次连接的通讯输入端、通讯控制开关模块以及通讯输出端，还包括有稳压模块以及高压保护模块，所述通讯控制开关模块具有用于与所述蓝牙模块的供电回路连接的开关控制端TR，所述稳压模块的两输入端分别与所述通讯输入端的两接线端TX、RX连接，所述通讯控制开关模块的两输出端分别与所述通讯输出端的两接线端TXD、RXD连接,所述高压保护模块的两输入端分别与所述通讯控制开关模块以及所述接线端RXD连接；优选地，所述通讯模块还包括有ESD防护模块，该ESD防护模块的两输入端分别与所述通讯输出端的两接线端TXD、RXD连接。附图3为所述通讯模块其中的一个优选的具体电路图。利用上述通讯模块，可有效提高电池管理系统的工作可靠性和使用寿命。As a preferred embodiment, in order to better protect the main control module in the battery management system, effectively protect the main control module of the battery management system from being damaged by high-voltage signals during connection and communication with external devices, as shown in Figure 2, The communication module includes a communication input terminal, a communication control switch module and a communication output terminal connected in sequence, and also includes a voltage stabilizing module and a high voltage protection module. The communication control switch module has a power supply circuit for connecting with the Bluetooth module. The switch control terminal TR, the two input terminals of the voltage stabilizing module are respectively connected to the two terminals TX and RX of the communication input terminal, and the two output terminals of the communication control switch module are respectively connected to the two terminals of the communication output terminal TXD and RXD are connected, and the two input ends of the high voltage protection module are respectively connected with the communication control switch module and the terminal RXD; preferably, the communication module also includes an ESD protection module, and the two terminals of the ESD protection module The input terminals are respectively connected to the two terminals TXD and RXD of the communication output terminal. Figure 3 is a preferred specific circuit diagram of the communication module. Using the above communication module can effectively improve the working reliability and service life of the battery management system.
在本实施例中，所述模拟前端为基于芯片BQ76940的模拟前端，其最大支持15串锂电池，并且带有采集单体电压、电流温度功能，放电过流保护及短路保护等功能。所述主控模块中的主控芯片为单片机；所述单片机芯片型号优选为tmega328P。单片机通过I2C通讯方式与模拟前端进行通讯，以读取电压、电流等数据，从而实现电池的充放电管理。In this embodiment, the analog front end is an analog front end based on the chip BQ76940, which supports a maximum of 15 strings of lithium batteries, and has the functions of collecting cell voltage, current temperature, discharge overcurrent protection, and short circuit protection. The main control chip in the main control module is a single-chip microcomputer; the model of the single-chip microcomputer chip is preferably tmega328P. The single-chip microcomputer communicates with the analog front end through I2C communication to read data such as voltage and current, so as to realize the charge and discharge management of the battery.
与现有技术相比，本实施例提供的电池管理系统，其通过设置有蓝牙模块，使得用户可在手机上方便地查看电池的实时数据信息，并对电池进行充放电的管理维护；此为，电池管理系统中的通讯模块中具有高压保护模块与ESD防护模块，可有效保护电池管理系统的主控模块在与外接设备的连接通讯中被高压信号损坏，从而可有效提高电池管理系统的工作可靠性和使用寿命。Compared with the prior art, the battery management system provided by this embodiment is equipped with a Bluetooth module, so that the user can conveniently check the real-time data information of the battery on the mobile phone, and manage and maintain the charge and discharge of the battery; this is , the communication module in the battery management system has a high-voltage protection module and an ESD protection module, which can effectively protect the main control module of the battery management system from being damaged by high-voltage signals during the connection and communication with external devices, thereby effectively improving the work of the battery management system reliability and service life.
上述实施例为本实用新型的较佳的实现方式，并非是对本实用新型的限定，在不脱离本实用新型的发明构思的前提下，任何显而易见的替换均在本实用新型的保护范围之内。易见的替换均在本发明的保护范围之内。The above embodiment is a preferred implementation of the utility model, not a limitation of the utility model, any obvious replacement is within the protection scope of the utility model without departing from the inventive concept of the utility model. All obvious substitutions are within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620764619.4UCN205986220U (en) | 2016-07-18 | 2016-07-18 | Battery management system with bluetooth communication function |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620764619.4UCN205986220U (en) | 2016-07-18 | 2016-07-18 | Battery management system with bluetooth communication function |
| Publication Number | Publication Date |
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| CN205986220Utrue CN205986220U (en) | 2017-02-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620764619.4UActiveCN205986220U (en) | 2016-07-18 | 2016-07-18 | Battery management system with bluetooth communication function |
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| CN (1) | CN205986220U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089492A (en)* | 2017-11-28 | 2018-05-29 | 湖北万洪锂电池有限公司 | A kind of lithium battery protection board communication system |
| CN109050258A (en)* | 2018-07-12 | 2018-12-21 | 重庆邮电大学 | A kind of battery system and maintaining method with wireless communication function |
| CN109501726A (en)* | 2018-09-17 | 2019-03-22 | 宁波革鑫新能源科技有限公司 | A kind of battery management system and device |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108089492A (en)* | 2017-11-28 | 2018-05-29 | 湖北万洪锂电池有限公司 | A kind of lithium battery protection board communication system |
| CN109050258A (en)* | 2018-07-12 | 2018-12-21 | 重庆邮电大学 | A kind of battery system and maintaining method with wireless communication function |
| CN109501726A (en)* | 2018-09-17 | 2019-03-22 | 宁波革鑫新能源科技有限公司 | A kind of battery management system and device |
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| CP02 | Change in the address of a patent holder | Address after:523000 No. 49, Baoyuan Road, Lianhu, Tangxia Town, Dongguan City, Guangdong Province Patentee after:DONGGUAN JIABAIDA ELECTRONIC TECHNOLOGY CO.,LTD. Address before:523000 5th floor, No. 23, San Wu, shitanpu, Tangxia Town, Dongguan City, Guangdong Province Patentee before:DONGGUAN JIABAIDA ELECTRONIC TECHNOLOGY CO.,LTD. |