WO2020215583A1 - Battery pack monitoring system and method - Google Patents

Battery pack monitoring system and method Download PDF

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Publication number
WO2020215583A1
WO2020215583A1 PCT/CN2019/104562 CN2019104562W WO2020215583A1 WO 2020215583 A1 WO2020215583 A1 WO 2020215583A1 CN 2019104562 W CN2019104562 W CN 2019104562W WO 2020215583 A1 WO2020215583 A1 WO 2020215583A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
protection board
pin interface
communication module
information
Prior art date
Application number
PCT/CN2019/104562
Other languages
French (fr)
Chinese (zh)
Inventor
冯梓洋
曾伍军
李芝儒
Original Assignee
深圳市明唐通信有限公司
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Application filed by 深圳市明唐通信有限公司 filed Critical 深圳市明唐通信有限公司
Publication of WO2020215583A1 publication Critical patent/WO2020215583A1/en

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    • H02J7/0021—
    • H02J7/0022—
    • H02J7/0026—

Definitions

  • the present invention relates to the field of battery pack monitoring, and more specifically, to a battery pack monitoring system and method.
  • the protection board does not have data processing and control functions, and cannot realize the data monitoring and control of the battery pack.
  • the existing common method is to set up a battery management system in the battery box (BATTERY MANAGEMENT SYSTEM)
  • the battery management system is the BMS control system.
  • the BMS control system can realize real-time monitoring of the working status of the lithium battery, and when there is an abnormality in the lithium battery, the corresponding control treatment will be made in time to avoid damage to the lithium battery.
  • the technical problem to be solved by the present invention is to provide a battery pack monitoring system and method in view of the above-mentioned defects of the prior art.
  • the technical solution adopted by the present invention to solve its technical problem is to provide a battery pack monitoring system, the battery pack monitoring system is arranged on a tool box, the tool box includes a box body, the box body is provided with an accommodation space
  • the battery pack monitoring system includes a battery pack, a protection board connected with the battery pack, and a communication module communicatively connected with the protection board; the battery pack and the protection board are placed in the accommodation space, the The communication module is arranged separately from the protection board and installed in the side wall of the box or the containing space; the protection board is provided with at least one first pin interface, and the communication module is provided with the A second pin interface corresponding to the first pin interface;
  • the protection board is used to detect the status information of the battery pack and transmit it to the second pin interface through the first pin interface, and the communication module receives the status through the second pin interface Information and forward the state information;
  • the communication module receives an external control instruction and transmits it to the first pin interface through the second pin interface, and the protection board receives the control instruction through the first pin interface, and according to the The control command controls the state of the battery pack.
  • the protection board includes a temperature detection module and a voltage detection module
  • the temperature detection module is configured to detect the real-time temperature of the battery pack to obtain temperature information of the battery pack
  • the voltage detection module is configured to detect the real-time voltage of the battery pack to obtain the voltage information of the battery pack
  • the temperature information and the voltage information form the state information.
  • the protection board further includes: a charging switch and a discharging switch;
  • the protection board monitors the temperature information in real time, and outputs an over-temperature control signal to the charging switch and the discharging switch when the battery pack is over-temperature, so as to control the charging switch and the discharging switch to turn off;
  • the protection board is also used to monitor the voltage information in real time, and output an overvoltage control signal when the battery pack is overvoltage.
  • the overvoltage control signal includes an overdischarge control signal and an overcharge control signal
  • the protection board outputs the over-discharge control signal to the discharge switch when the battery pack is under low voltage to control the discharge switch to turn off; when the battery pack is over high voltage, the protection board outputs The overcharge control signal is sent to the charging switch to control the charging switch to turn off.
  • the communication module is also communicatively connected with an external device to send the status information to the external device, and display the status information through the external device;
  • the external device is also used to receive a control instruction input by a user, and send the control instruction to the communication module for transmission to the protection board through the communication module.
  • the communication module includes any one of a Bluetooth communication module, a WIFI communication module, and a mobile communication module.
  • the present invention also provides a battery pack monitoring method, which is applied to the above-mentioned battery pack monitoring system.
  • the battery pack monitoring system is arranged on a tool box.
  • the tool box includes a box body.
  • the battery pack monitoring system includes a battery pack, a protection board connected with the battery pack, and a communication module communicatively connected with the protection board; the battery pack and the protection board are placed in the accommodation space, and the communication module It is arranged separately from the protection board and installed in the side wall of the box or in the containing space, including:
  • the protection board detects the status information of the battery pack
  • the protection board sends the status information to the second pin interface through the first pin interface; the second pin interface is set corresponding to the first pin interface;
  • the communication module receives the status information through the second pin interface and forwards the status information, and receives an external control instruction, and transmits it to the first pin interface through the second pin interface , To transmit the control instruction to the protection board;
  • the protection board controls the state of the battery pack according to the control instruction.
  • the method further includes:
  • the protection board detects the temperature of the battery pack in real time to obtain temperature information of the battery pack
  • the protection board compares the temperature information with a preset temperature, and when the temperature information is greater than or equal to the preset temperature, outputs an over-temperature control signal to control the charging switch and the discharging switch to turn off.
  • the method further includes:
  • the protection board detects the voltage of the battery pack in real time to obtain the voltage information of the battery pack
  • the protection board compares the voltage information with a first preset voltage, and when the voltage information is less than or equal to the first preset voltage, outputs an over-discharge control signal to control the discharge switch to turn off.
  • the method further includes: after the step S2-0, the method further includes:
  • the protection board compares the voltage information with a second preset voltage, and when the voltage information is greater than or equal to the second preset voltage, outputs an overcharge control signal to control the charging switch to turn off.
  • the battery pack monitoring system implementing the present invention has the following beneficial effects: the present invention can achieve the realization by setting the first pin interface on the protection board and the second pin interface corresponding to the first pin interface on the communication module.
  • the communication function between the protection board and external equipment, and the real-time monitoring of the status information of the battery pack can also be realized through the protection board, and the obtained status information can be transmitted to the first pin interface and the second pin interface in real time.
  • the external device facilitates users or managers to monitor the battery pack status, and the protection board can also control the battery pack status according to the external control instructions issued by the external device.
  • the protection board of the present invention can not only realize the monitoring and control of the status information of the battery pack, but also can realize protection by setting a first pin interface on the protection board and a corresponding second pin interface on the communication module.
  • the purpose of communication between the board and external devices is to achieve low-cost monitoring and control of the safety issues of the battery pack.
  • FIG. 1 is a schematic diagram of the interface between a protection board and a communication module in a battery pack monitoring system provided by an embodiment of the present invention
  • FIG. 2 is a logical block diagram of a battery pack monitoring system provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a battery pack monitoring system provided on a toolbox according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a battery pack monitoring method provided by an embodiment of the present invention.
  • FIGS 1 to 3 show battery pack monitoring systems provided by embodiments of the present invention.
  • the battery pack monitoring system can be used for multi-directional monitoring and control of the battery pack 12 to better avoid abnormal situations.
  • the battery pack monitoring system of the present invention has simple structure, low cost, and is easy to realize and control.
  • the battery pack 12 of the embodiment of the present invention may be a lithium battery pack.
  • the battery pack monitoring system can be set on the toolbox.
  • the toolbox includes a box body 10, and the box body 10 is provided with an accommodation space.
  • the battery pack monitoring system includes a battery pack 12, a protection board 11 connected to the battery pack 12, and a communication module 13 communicatively connected to the protection board 11.
  • the battery pack 12 and the protection board 11 are placed in the accommodation space, and the communication module 13 It is provided separately from the protection board 11 and installed in the side wall of the box body 10 or the accommodating space.
  • the protection board 11 is paired with the battery pack 12, that is, each battery pack 12 is equipped with at least one protection board 11, and the protection board 11 is used to monitor the status information of the battery pack 12.
  • the battery pack 12 and the protection board 11 are made into a finished product, the battery pack 12 and the protection board 11 are equivalent to a whole, and the user places the battery pack 12 and the protection board 11 in the accommodating space of the box 10 , There is no need to place them separately, and the placement of the battery pack 12 and the protection board 11 can be completed directly at one time. Understandably, after the battery pack 12 is placed in the box body 10 of the toolbox, it can be used as a battery box. For example, for electric vehicle users, the user can directly install the battery box on the electric vehicle to complete the battery Installation operation.
  • the protection board 11 is provided with at least one first pin interface 111, and each pin interface is used to send and receive signals, and the first pin interface 111 can detect the information detected by the protection board 11.
  • the status information of the battery pack 12 is transmitted. Understandably, the status information of the battery pack 12 includes, but is not limited to, temperature information of the battery pack 12, charging current information of the battery pack 12, discharging current information of the battery pack 12, charging voltage information of the battery pack 12, and discharging of the battery pack 12. Voltage information, etc.
  • the first pin interface 111 can be set with one or more.
  • the temperature information, charging current information, discharging current information, charging voltage information, and discharging voltage information of the battery pack 12 can all be set.
  • the first pin interface 111 at this time, each first pin interface 111 transmits any one of the status information of the battery pack 12, and at the same time, the first pin interface 111 is used to receive and control the state information Control instruction.
  • the #1 first pin interface 111 is used to transmit the temperature information of the battery pack 12.
  • the external input control command passes through the #1 first pin interface 111 is connected to the protection board 11, and the protection board 11 executes temperature control actions according to the control instructions accessed by the #1 first pin interface 111.
  • the #2 first pin interface 111 is used to transmit the voltage information of the battery pack 12.
  • the external input control command (voltage control command) passes through the #2 first pin
  • the interface 111 is connected to the protection board 11, and the protection board 11 performs a voltage control action according to the control instruction accessed by the #2 first pin interface 111.
  • the protection board 11 of the embodiment of the present invention includes a temperature detection module 112 and a voltage detection module 113.
  • the temperature detection module 112 is used to detect the real-time temperature of the battery pack 12 to obtain temperature information of the battery pack 12
  • the voltage detection module 113 is used to detect the real-time voltage of the battery pack 12 to obtain the voltage information of the battery pack 12. Understandably, as shown in FIG.
  • the protection board 11 may further include a charging switch 114 and a discharging switch 115. Both the optional charging switch 114 and the discharging switch 115 can be realized by a MOS tube or a triode.
  • the protection board 11 monitors the temperature information of the battery pack 12 in real time through the temperature detection module 112 provided on it, and compares the monitored temperature information with the pre-stored preset temperature. When the monitored real-time temperature information is greater than When the temperature is equal to or equal to the preset temperature, the protection board 11 determines that the battery pack 12 is in an over-temperature state.
  • the protection board 11 outputs an over-temperature control signal to the charge switch 114 and the discharge switch 115 to control the charge switch 114 and the discharge switch 115 to turn off open.
  • the protection board 11 continues to monitor the temperature information of the battery pack 12, and when the temperature of the battery pack 12 returns to the normal range, the protection board 11 outputs a connection signal to the charge switch 114 and the discharge switch 115 to control the connection between the charging switch 114 and the discharging switch 115.
  • the protection board 11 also monitors the voltage information of the battery pack 12 in real time through the voltage detection module 113 provided thereon, and outputs an overvoltage control signal when the battery pack 12 is overvoltage.
  • the overvoltage control signal includes an overdischarge control signal and an overcharge control signal.
  • the protection board 11 compares the monitored voltage information with the threshold voltage, where the threshold voltage includes a low-voltage threshold voltage and a high-voltage threshold voltage. When the real-time monitored voltage information is less than or equal to the low-voltage threshold voltage, the protection board 11 It is determined that the battery pack 12 is in an over-discharge state, and the battery pack 12 is under-voltage.
  • the protection board 11 outputs an over-discharge control signal to the discharge switch 115 to control the discharge switch 115 to turn off and continue to monitor the voltage information of the battery pack 12, and When the voltage of the group 12 returns to the normal range, a connection signal is output to the discharge switch 115 to control the discharge switch 115 to be connected.
  • the protection board 11 determines that the battery pack 12 is in an overcharged state, and the battery pack 12 is over high voltage, and the protection board 11 outputs an overcharge control signal to the charging switch 114 to control the charging switch 114 is disconnected and continues to monitor the voltage information of the battery pack 12, and when the voltage of the battery pack 12 returns to a normal range, a connection signal is output to the charging switch 114 to control the charging switch 114 to be connected.
  • the communication module 13 is provided with a second pin interface 131 corresponding to the first pin interface 111, and the communication module 13 is used to receive an external control instruction and transmit it to the second pin interface 131
  • the first pin interface 111, the protection board 11 receives control instructions through the first pin interface 111, and controls the state of the battery pack 12 according to the control instructions, and the communication module 13 can also receive the protection board through the second pin interface 131 11
  • the status information of the battery pack 12 output through the first pin interface 111, and the received status information of the battery pack 12 is forwarded, such as sent to an external device, where the external device includes but is not limited to a smart terminal, a server Wait.
  • the communication module 13 is also communicatively connected with an external device to send status information to the external device and display the status information through the external device; the external device is also used to receive control instructions input by the user and send the control instructions to The communication module 13 is transmitted to the protection board 11 through the communication module 13.
  • the communication module 13 includes but is not limited to any one of a Bluetooth communication module, a WIFI communication module, a mobile communication module, a Zigbee communication module, and a LORA communication module.
  • mobile communication modules include, but are not limited to, 2G, 3G, 4G, 5G and other communication modules implemented by mobile communication data transmission technology.
  • the number of the second pin interface 131 depends on the number of the first pin interface 111 on the protection board 11.
  • the corresponding first pin interface 111 is also in the communication module
  • a second pin interface 131 is provided on 13, and the position of the second pin interface 131 is opposite to that of the first pin interface 111; when there are multiple first pin interfaces 111, it corresponds to the first pin interface 111
  • a plurality of second pin interfaces 131 are also provided on the communication module 13, and each second pin interface 131 is arranged in a one-to-one correspondence with the corresponding first pin interface 111.
  • the #1 second pin interface 131 receives the status information (such as temperature information) output by the #1 first pin interface 111, and at the same time, the #1 second pin interface 131 receives external input A control command used to control the function corresponding to the status information transmitted by the #1 first pin interface 111 (as shown in the temperature control command).
  • the status information such as temperature information
  • the #1 second pin interface 131 receives external input A control command used to control the function corresponding to the status information transmitted by the #1 first pin interface 111 (as shown in the temperature control command).
  • the #1 first pin interface 111 outputs the temperature information of the battery pack 12 and outputs it to the external device through the #1 second pin interface 131.
  • the temperature control command is passed #1 second pin interface 131 is connected and transmitted to #1 first pin interface 111, and #1 first pin interface 111 is connected to protection board 11; for another example, #2 first pin interface 111 outputs The voltage information of the battery pack 12 is output to external equipment through the #2 second pin interface 131.
  • the voltage control command is accessed through the #2 second pin interface 131. It is transmitted to the #2 first pin interface 111, and the #2 first pin interface 111 is connected to the protection board 11.
  • the present invention can control the charging switch 114 and the discharging switch 115 to be disconnected when the temperature of the battery pack 12 is too high, and the temperature of the battery pack 12 returns to the normal range. Afterwards, the charging switch 114 and the discharging switch 115 are controlled to be connected to avoid abnormal situations, such as the burning or explosion of the battery pack 12, and the discharge switch 115 can be controlled to be turned off when the voltage of the battery pack 12 is lower than the low-voltage threshold voltage.
  • the protection board 11 of the present invention enables the battery pack 12 to have the function of an automatic recovery mechanism, which brings a better user experience to the user and prevents unnecessary breakdown of application equipment (such as electric vehicles) during use. .
  • the present invention adopts the protection board 11 to realize real-time monitoring and status control of the status information of the battery pack 12 in a low-cost manner, and utilizes the first pin interface 111 provided on the protection board 11 and The second pin interface 131 corresponding to the first pin interface 111 on the communication module 13 can transmit the status information collected by the protection board 11 to the communication module 13 through the first pin interface 111 and the second pin interface 131,
  • the communication module 13 receives the status information, it transmits the status information to the smart terminal or server, so that the user or administrator can better understand the status of the battery pack 12, and the maintenance personnel can determine the battery pack 12’s status more quickly. Unusual problem.
  • users or managers can issue external control commands to the communication module 13 through a smart terminal or server, and the communication module 13 transmits the external control commands to the protection board 11 through the second pin interface 131 and the first pin interface 111, and
  • the protection board 11 controls the charging switch 114 and/or the discharging switch 115 to be disconnected and connected according to the issued external control command.
  • the state of the battery pack 12 can be controlled by controlling the charge switch 114 and the discharge switch 115 of the battery pack 12 to reduce the loss as much as possible.
  • the present invention adopts the protection board 11 to realize multi-directional monitoring and control of the battery pack 12 to better avoid abnormal situations, and the automatic power recovery mechanism of the protection board 11 can also bring better experience to users. .
  • the present invention also provides a battery pack monitoring method, which can be applied to the battery pack monitoring system provided by the embodiment of the present invention.
  • the battery pack monitoring system is arranged on a toolbox, the toolbox includes a box body 10, and the box body 10 is provided with an accommodation space.
  • the battery pack monitoring system includes a battery pack 12, a protection board 11 connected to the battery pack 12, and The communication module 13 to which the protection board 11 is communicatively connected; the battery pack 12 and the protection board 11 are placed in the accommodating space, and the communication module 13 is arranged separately from the protection board 11 and installed on the side wall of the box 10 or the accommodating space.
  • the battery pack monitoring method includes the following steps:
  • Step S1 the protection board 11 detects the status information of the battery pack 12;
  • Step S2 The protection board 11 sends the status information to the second pin interface 131 through the first pin interface 111; the second pin interface 131 is set corresponding to the first pin interface 111;
  • Step S3 The communication module 13 receives the status information through the second pin interface 131 and forwards the status information, and receives an external control instruction, and transmits it to the first pin interface 111 through the second pin interface 131 to transfer the control instruction Transfer to the protection board 11;
  • Step S4 The protection board 11 controls the state of the battery pack 12 according to the control command.
  • the state information of the battery pack 12 in the embodiment of the present invention includes but is not limited to the state information of the battery pack 12, including but not limited to the temperature information of the battery pack 12, the charging current information of the battery pack 12, the discharge current information of the battery pack 12, and the battery pack. 12 charging voltage information, discharging voltage information of the battery pack 12, etc.
  • the battery pack monitoring method also includes the following steps:
  • Step S1-0 The protection board 11 detects the temperature of the battery pack 12 in real time to obtain the temperature information of the battery pack 12;
  • Step S1-1 The protection board 11 compares the temperature information with the preset temperature, and when the temperature information is greater than or equal to the preset temperature, outputs an over-temperature control signal to control the charging switch 114 and the discharging switch 115 to turn off.
  • the protection board 11 outputs an over-temperature control The signal controls the charging switch 114 and the discharging switch 115 to be disconnected to ensure the safety of the battery pack 12.
  • the battery pack monitoring method further includes the following steps:
  • Step S2-0 The protection board 11 detects the voltage of the battery pack 12 in real time to obtain the voltage information of the battery pack 12;
  • Step S2-1 The protection board 11 compares the voltage information with the first preset voltage, and when the voltage information is less than or equal to the first preset voltage, outputs an over-discharge control signal to control the discharge switch 115 to turn off.
  • the method further includes: the protection board 11 compares the voltage information with a second preset voltage, and when the voltage information is greater than or equal to the second preset voltage, outputs an overcharge control signal to control the charging switch 114 disconnected.
  • the protection board 11 When the battery pack 12 is overcharged or overdischarged, the protection board 11 outputs an overcharge control signal in time to control the charging switch 114 to turn off to control the battery pack 12 to stop charging; or output an overdischarge control signal to control the discharge switch 115 to turn off It is turned on to control the battery pack 12 to stop discharging, which can better avoid the operating problems of the battery pack 12 caused by the battery pack 12 under overcharge or over-discharge conditions, and can effectively extend the service life of the battery pack 12.

Abstract

The present invention relates to a battery pack monitoring system and method. The battery pack monitoring system is arranged on a tool kit. The tool kit comprises a kit body, and an accommodating space is provided in the kit body. The battery pack monitoring system comprises a battery pack, a protection plate and a communication module, wherein the battery pack and the protection plate are placed in the accommodating space; the communication module and the protection plate are arranged separately and are mounted on side walls or in the accommodating space of the kit body; the protection plate is provided with at least one first pin interface; the communication module is provided with a second pin interface corresponding to the first pin interface; the protection plate monitors state information of the battery pack and transmits same to the second pin interface by means of the first pin interface; and the communication module receives and forwards the state information by means of the second pin interface, and transmits an external control instruction to the protection plate to control the state of the battery pack according to the control instruction. The protection plate achieves the monitoring and control of the state information of the battery pack, communication between the protection plate and an external device is achieved by means of the first pin interface and the second pin interface, and the cost thereof is low.

Description

一种电池组监控系统及方法Battery pack monitoring system and method 技术领域Technical field
本发明涉及电池组的监控领域，更具体地说，涉及一种电池组监控系统及方法。The present invention relates to the field of battery pack monitoring, and more specifically, to a battery pack monitoring system and method.
背景技术Background technique
在电动车飞速发展的今天，大容量锂电池在我们的日常生活中已无处不在，由于锂电池本身物理特性，其锂电池安全问题也在逐渐被产品商所重视，由于现有锂电池的保护板不具备数据处理及控制功能，不能实现对电池组的数据监测和控制，为了解决锂电池的安全问题，现有的常用方法是在电池箱中设置电池管理系统（BATTERY MANAGEMENT SYSTEM）电池管理系统，即BMS控制系统，该BMS控制系统可以实现对锂电池的工作状态进行实时监测，并在锂电池出现异常时，及时作出相应的控制处理，以避免锂电池损坏。With the rapid development of electric vehicles today, large-capacity lithium batteries are ubiquitous in our daily lives. Due to the physical characteristics of lithium batteries, the safety of lithium batteries is gradually being valued by product manufacturers. The protection board does not have data processing and control functions, and cannot realize the data monitoring and control of the battery pack. In order to solve the safety problem of lithium batteries, the existing common method is to set up a battery management system in the battery box (BATTERY MANAGEMENT SYSTEM) The battery management system is the BMS control system. The BMS control system can realize real-time monitoring of the working status of the lithium battery, and when there is an abnormality in the lithium battery, the corresponding control treatment will be made in time to avoid damage to the lithium battery.
然而采用BMS控制的方式成本高，控制方式复杂，不利于产品的低成本化，也不利于产品的广泛推广。However, the cost of using BMS control is high and the control method is complicated, which is not conducive to the cost reduction of the product, and it is also not conducive to the wide promotion of the product.
技术问题technical problem
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种电池组监控系统及方法。The technical problem to be solved by the present invention is to provide a battery pack monitoring system and method in view of the above-mentioned defects of the prior art.
技术解决方案Technical solutions
本发明解决其技术问题所采用的技术方案是：提供一种电池组监控系统，所述电池组监控系统设置在工具箱上，所述工具箱包括箱体，所述箱体内设有容纳空间，所述电池组监控系统包括电池组、与电池组连接的保护板、以及与所述保护板通信连接的通信模块；所述电池组和所述保护板安放于所述容纳空间中，所述通信模块与所述保护板分开设置且安装在所述箱体的侧壁或者所述容纳空间中；所述保护板设有至少一个第一引脚接口，所述通信模块上设有与所述第一引脚接口对应的第二引脚接口；The technical solution adopted by the present invention to solve its technical problem is to provide a battery pack monitoring system, the battery pack monitoring system is arranged on a tool box, the tool box includes a box body, the box body is provided with an accommodation space The battery pack monitoring system includes a battery pack, a protection board connected with the battery pack, and a communication module communicatively connected with the protection board; the battery pack and the protection board are placed in the accommodation space, the The communication module is arranged separately from the protection board and installed in the side wall of the box or the containing space; the protection board is provided with at least one first pin interface, and the communication module is provided with the A second pin interface corresponding to the first pin interface;
所述保护板用于检测所述电池组的状态信息、并通过所述第一引脚接口传输给所述第二引脚接口，所述通信模块通过所述第二引脚接口接收所述状态信息、并将所述状态信息进行转发；The protection board is used to detect the status information of the battery pack and transmit it to the second pin interface through the first pin interface, and the communication module receives the status through the second pin interface Information and forward the state information;
所述通信模块接收外部控制指令、并通过所述第二引脚接口传输给所述第一引脚接口，所述保护板通过所述第一引脚接口接收所述控制指令、并根据所述控制指令控制所述电池组的状态。The communication module receives an external control instruction and transmits it to the first pin interface through the second pin interface, and the protection board receives the control instruction through the first pin interface, and according to the The control command controls the state of the battery pack.
优选地，所述保护板包括温度检测模块和电压检测模块；Preferably, the protection board includes a temperature detection module and a voltage detection module;
所述温度检测模块用于检测所述电池组的实时温度以获得所述电池组的温度信息，所述电压检测模块用于检测所述电池组的实时电压以获得所述电池组的电压信息；The temperature detection module is configured to detect the real-time temperature of the battery pack to obtain temperature information of the battery pack, and the voltage detection module is configured to detect the real-time voltage of the battery pack to obtain the voltage information of the battery pack;
所述温度信息和所述电压信息形成所述状态信息。The temperature information and the voltage information form the state information.
优选地，所述保护板还包括：充电开关和放电开关；Preferably, the protection board further includes: a charging switch and a discharging switch;
所述保护板对所述温度信息进行实时监测，并在所述电池组过温时输出过温控制信号至所述充电开关和放电开关，以控制所述充电开关和放电开关断开；The protection board monitors the temperature information in real time, and outputs an over-temperature control signal to the charging switch and the discharging switch when the battery pack is over-temperature, so as to control the charging switch and the discharging switch to turn off;
所述保护板还用于对所述电压信息进行实时监测，并在电池组过压时输出过压控制信号。The protection board is also used to monitor the voltage information in real time, and output an overvoltage control signal when the battery pack is overvoltage.
优选地，所述过压控制信号包括过放控制信号和过充控制信号；Preferably, the overvoltage control signal includes an overdischarge control signal and an overcharge control signal;
所述保护板在所述电池组过低压时，输出所述过放控制信号至所述放电开关，以控制所述放电开关断开；所述保护板在所述电池组过高压时，输出所述过充控制信号至所述充电开关，以控制所述充电开关断开。The protection board outputs the over-discharge control signal to the discharge switch when the battery pack is under low voltage to control the discharge switch to turn off; when the battery pack is over high voltage, the protection board outputs The overcharge control signal is sent to the charging switch to control the charging switch to turn off.
优选地，所述通信模块还与外部设备通信连接，以向所述外部设备发送所述状态信息，并通过所述外部设备对所述状态信息进行显示；Preferably, the communication module is also communicatively connected with an external device to send the status information to the external device, and display the status information through the external device;
所述外部设备还用于接收用户输入的控制指令，并将所述控制指令发送给所述通信模块，以通过所述通信模块传输给所述保护板。The external device is also used to receive a control instruction input by a user, and send the control instruction to the communication module for transmission to the protection board through the communication module.
优选地，所述通信模块包括蓝牙通信模块、WIFI通信模块、移动通信模块中的任意一种。Preferably, the communication module includes any one of a Bluetooth communication module, a WIFI communication module, and a mobile communication module.
本发明还提供一种电池组监控方法，应用于以上所述的电池组监控系统，所述电池组监控系统设置在工具箱上，所述工具箱包括箱体，所述箱体内设有容纳空间，所述电池组监控系统包括电池组、与电池组连接的保护板以及与保护板通信连接的通信模块；所述电池组和所述保护板安放于所述容纳空间中，所述通信模块与所述保护板分开设置且安装在所述箱体的侧壁或者所述容纳空间中，包括：The present invention also provides a battery pack monitoring method, which is applied to the above-mentioned battery pack monitoring system. The battery pack monitoring system is arranged on a tool box. The tool box includes a box body. The battery pack monitoring system includes a battery pack, a protection board connected with the battery pack, and a communication module communicatively connected with the protection board; the battery pack and the protection board are placed in the accommodation space, and the communication module It is arranged separately from the protection board and installed in the side wall of the box or in the containing space, including:
S1、所述保护板检测所述电池组的状态信息；S1. The protection board detects the status information of the battery pack;
S2、所述保护板通过第一引脚接口将所述状态信息发送给第二引脚接口；所述第二引脚接口与所述第一引脚接口对应设置；S2. The protection board sends the status information to the second pin interface through the first pin interface; the second pin interface is set corresponding to the first pin interface;
S3、所述通信模块通过所述第二引脚接口接收所述状态信息并对所述状态信息进行转发，以及接收外部控制指令、并通过所述第二引脚接口传输给第一引脚接口，以将所述控制指令传输给所述保护板；S3. The communication module receives the status information through the second pin interface and forwards the status information, and receives an external control instruction, and transmits it to the first pin interface through the second pin interface , To transmit the control instruction to the protection board;
S4、所述保护板根据所述控制指令控制所述电池组的状态。S4. The protection board controls the state of the battery pack according to the control instruction.
优选地，所述方法还包括：Preferably, the method further includes:
S1-0、所述保护板对所述电池组的温度进行实时检测，以获取所述电池组的温度信息；S1-0. The protection board detects the temperature of the battery pack in real time to obtain temperature information of the battery pack;
S1-1、所述保护板将所述温度信息与预设温度进行比较，并在所述温度信息大于或等于预设温度时，输出过温控制信号，以控制充电开关和放电开关断开。S1-1. The protection board compares the temperature information with a preset temperature, and when the temperature information is greater than or equal to the preset temperature, outputs an over-temperature control signal to control the charging switch and the discharging switch to turn off.
优选地，所述方法还包括：Preferably, the method further includes:
S2-0、所述保护板对所述电池组的电压进行实时检测，以获取所述电池组的电压信息；S2-0. The protection board detects the voltage of the battery pack in real time to obtain the voltage information of the battery pack;
S2-1、所述保护板将所述电压信息与第一预设电压进行比较，并在所述电压信息小于或等于第一预设电压时，输出过放控制信号以控制放电开关断开。S2-1. The protection board compares the voltage information with a first preset voltage, and when the voltage information is less than or equal to the first preset voltage, outputs an over-discharge control signal to control the discharge switch to turn off.
优选地，所述方法还包括：所述步骤S2-0之后还包括：Preferably, the method further includes: after the step S2-0, the method further includes:
所述保护板将所述电压信息与第二预设电压进行比较，并在所述电压信息大于或等于第二预设电压时，输出过充控制信号以控制充电开关断开。The protection board compares the voltage information with a second preset voltage, and when the voltage information is greater than or equal to the second preset voltage, outputs an overcharge control signal to control the charging switch to turn off.
有益效果Beneficial effect
实施本发明的电池组监控系统，具有以下有益效果：本发明通过在保护板上设置第一引脚接口，在通信模块上设置与第一引脚接口对应的第二引脚接口，可以实现了保护板与外部设备之间的通信功能，而且还可以通过保护板实现对电池组的状态信息的实时监测，并将所获得的状态信息实时通过第一引脚接口、第二引脚接口传送至外部设备，方便用户或者管理者对电池组的状态监测，而且保护板还可以根据外部设备下发的外部控制指令实现对电池组的状态的控制。The battery pack monitoring system implementing the present invention has the following beneficial effects: the present invention can achieve the realization by setting the first pin interface on the protection board and the second pin interface corresponding to the first pin interface on the communication module. The communication function between the protection board and external equipment, and the real-time monitoring of the status information of the battery pack can also be realized through the protection board, and the obtained status information can be transmitted to the first pin interface and the second pin interface in real time. The external device facilitates users or managers to monitor the battery pack status, and the protection board can also control the battery pack status according to the external control instructions issued by the external device.
进一步地，本发明的保护板既可以实现对电池组的状态信息监测和控制，也可以通过在保护板上设置第一引脚接口和在通信模块上设置对应的第二引脚接口，实现保护板与外部设备通信的目的，达到了以低成本的方式实现对电池组的安全问题监测及控制。Further, the protection board of the present invention can not only realize the monitoring and control of the status information of the battery pack, but also can realize protection by setting a first pin interface on the protection board and a corresponding second pin interface on the communication module. The purpose of communication between the board and external devices is to achieve low-cost monitoring and control of the safety issues of the battery pack.
附图说明Description of the drawings
下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:
图1是本发明实施例提供的电池组监控系统中保护板与通信模块的接口的示意图；FIG. 1 is a schematic diagram of the interface between a protection board and a communication module in a battery pack monitoring system provided by an embodiment of the present invention;
图2是本发明实施例提供的电池组监控系统逻辑框图；Figure 2 is a logical block diagram of a battery pack monitoring system provided by an embodiment of the present invention;
图3是本发明实施例提供的电池组监控系统安装在工具箱上的示意图；Figure 3 is a schematic diagram of a battery pack monitoring system provided on a toolbox according to an embodiment of the present invention;
图4是本发明实施例提供的电池组监控方法的流程示意图。FIG. 4 is a schematic flowchart of a battery pack monitoring method provided by an embodiment of the present invention.
本发明的最佳实施方式The best mode of the invention
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
图1至图3示出了本发明实施例提供的电池组监控系统。该电池组监控系统可以用于对电池组12进行多方位的监测和控制，以更好的避免异常情况发生。本发明的电池组监控系统结构简单、成本低，易于实现和控制。本发明实施例的电池组12可以为锂电池组。Figures 1 to 3 show battery pack monitoring systems provided by embodiments of the present invention. The battery pack monitoring system can be used for multi-directional monitoring and control of the battery pack 12 to better avoid abnormal situations. The battery pack monitoring system of the present invention has simple structure, low cost, and is easy to realize and control. The battery pack 12 of the embodiment of the present invention may be a lithium battery pack.
如图3所示，该电池组监控系统可以设置在工具箱上。具体的，工具箱包括箱体10，箱体10内设有容纳空间。该电池组监控系统包括电池组12、与电池组12连接的保护板11、以及与保护板11通信连接的通信模块13，其中，电池组12和保护板11安放于容纳空间中，通信模块13与保护板11分开设置且安装在箱体10的侧壁或者容纳空间中。本发明实施例中，保护板11与电池组12配对设置，即每一个电池组12至少配置一个保护板11，该保护板11用于监测电池组12的状态信息。需要说明的是，电池组12与保护板11在制成成品后，电池组12与保护板11相当于一个整体，用户将电池组12与保护板11安放在箱体10的容纳空间的过程中，不需要分别安放，直接一次即可完成电池组12与保护板11的安放工作。可以理解地，该工具箱的箱体10内安放有电池组12后，即可作用一个电池箱使用，例如，对于电动车用户，用户可直接将该电池箱安装在电动车上即可完成电池的安装操作。As shown in Figure 3, the battery pack monitoring system can be set on the toolbox. Specifically, the toolbox includes a box body 10, and the box body 10 is provided with an accommodation space. The battery pack monitoring system includes a battery pack 12, a protection board 11 connected to the battery pack 12, and a communication module 13 communicatively connected to the protection board 11. The battery pack 12 and the protection board 11 are placed in the accommodation space, and the communication module 13 It is provided separately from the protection board 11 and installed in the side wall of the box body 10 or the accommodating space. In the embodiment of the present invention, the protection board 11 is paired with the battery pack 12, that is, each battery pack 12 is equipped with at least one protection board 11, and the protection board 11 is used to monitor the status information of the battery pack 12. It should be noted that after the battery pack 12 and the protection board 11 are made into a finished product, the battery pack 12 and the protection board 11 are equivalent to a whole, and the user places the battery pack 12 and the protection board 11 in the accommodating space of the box 10 , There is no need to place them separately, and the placement of the battery pack 12 and the protection board 11 can be completed directly at one time. Understandably, after the battery pack 12 is placed in the box body 10 of the toolbox, it can be used as a battery box. For example, for electric vehicle users, the user can directly install the battery box on the electric vehicle to complete the battery Installation operation.
具体的，本发明实施例中，保护板11上设有至少一个第一引脚接口111，每一个引脚接口用于收发信号，通过该第一引脚接口111可以将保护板11检测到的电池组12的状态信息传输出去。可以理解地，电池组12的状态信息包括但不限于电池组12的温度信息、电池组12的充电电流信息、电池组12的放电电流信息、电池组12的充电电压信息、电池组12的放电电压信息等。该第一引脚接口111可以设置一个或者多个，当第一引脚接口111设置一个时，电池组12的温度信息、充电电流信息、放电电流信息、充电电压信息、放电电压信息等均可以通过该第一引脚接口111输出；当该第一引脚接口111设置多个时，如图1所示，分别设有#1、#2、#3、……、#N，共N个第一引脚接口111，此时，每一个第一引脚接口111传输电池组12的状态信息中的任意一种状态信息，同时，第一引脚接口111用于接收控制该种状态信息的控制指令。例如，#1第一引脚接口111用于传输电池组12的温度信息，当需要对电池组12的温度进行控制时，外部输入的控制指令（温度控制指令）通过#1第一引脚接口111接入保护板11中，保护板11根据#1第一引脚接口111接入的控制指令执行温度控制动作。同理，#2第一引脚接口111用于传输电池组12的电压信息，当需要对电池组12的电压进行控制时，外部输入的控制指令（电压控制指令）通过#2第一引脚接口111接入保护板11中，保护板11根据#2第一引脚接口111接入的控制指令执行电压控制动作。Specifically, in the embodiment of the present invention, the protection board 11 is provided with at least one first pin interface 111, and each pin interface is used to send and receive signals, and the first pin interface 111 can detect the information detected by the protection board 11. The status information of the battery pack 12 is transmitted. Understandably, the status information of the battery pack 12 includes, but is not limited to, temperature information of the battery pack 12, charging current information of the battery pack 12, discharging current information of the battery pack 12, charging voltage information of the battery pack 12, and discharging of the battery pack 12. Voltage information, etc. The first pin interface 111 can be set with one or more. When the first pin interface 111 is set with one, the temperature information, charging current information, discharging current information, charging voltage information, and discharging voltage information of the battery pack 12 can all be set. Output through the first pin interface 111; when there are multiple first pin interfaces 111, as shown in Figure 1, there are #1, #2, #3,..., #N, a total of N The first pin interface 111, at this time, each first pin interface 111 transmits any one of the status information of the battery pack 12, and at the same time, the first pin interface 111 is used to receive and control the state information Control instruction. For example, the #1 first pin interface 111 is used to transmit the temperature information of the battery pack 12. When the temperature of the battery pack 12 needs to be controlled, the external input control command (temperature control command) passes through the #1 first pin interface 111 is connected to the protection board 11, and the protection board 11 executes temperature control actions according to the control instructions accessed by the #1 first pin interface 111. In the same way, the #2 first pin interface 111 is used to transmit the voltage information of the battery pack 12. When the voltage of the battery pack 12 needs to be controlled, the external input control command (voltage control command) passes through the #2 first pin The interface 111 is connected to the protection board 11, and the protection board 11 performs a voltage control action according to the control instruction accessed by the #2 first pin interface 111.
进一步地，本发明实施例的保护板11包括温度检测模块112和电压检测模块113。温度检测模块112用于检测电池组12的实时温度以获得电池组12的温度信息，电压检测模块113用于检测电池组12的实时电压以获得电池组12的电压信息。可以理解地，如图1所示，若#1的第一引脚接口111实现的是温度信息和温度控制指令的传输功能，则温度检测模块112检测到的电池组12的温度信息直连通过#1的第一引脚接口111输出；若#2的第一引脚接口111实现的是电压信息和电压控制指令的传输功能，则电压检测模块113检测到的电池组12的电压信息通过#2的第一引脚接口111输出。Furthermore, the protection board 11 of the embodiment of the present invention includes a temperature detection module 112 and a voltage detection module 113. The temperature detection module 112 is used to detect the real-time temperature of the battery pack 12 to obtain temperature information of the battery pack 12, and the voltage detection module 113 is used to detect the real-time voltage of the battery pack 12 to obtain the voltage information of the battery pack 12. Understandably, as shown in FIG. 1, if the first pin interface 111 of #1 realizes the transmission function of temperature information and temperature control commands, the temperature information of the battery pack 12 detected by the temperature detection module 112 is directly connected through The first pin interface 111 of #1 outputs; if the first pin interface 111 of #2 realizes the transmission function of voltage information and voltage control commands, the voltage information of the battery pack 12 detected by the voltage detection module 113 passes # 2’s first pin interface 111 outputs.
本发明实施例中，该保护板11还可以包括充电开关114和放电开关115。可选的充电开关114和放电开关115均可以通过MOS管或者三极管实现。保护板11通过设置在其上的温度检测模块112对电池组12的温度信息进行实时监测，并对监测到的温度信息与预存的预设温度进行比较判断，当所监测到的实时的温度信息大于或等于预设温度时，保护板11判定电池组12处于过温状态，此时，保护板11即输出过温控制信号至充电开关114和放电开关115，以控制充电开关114和放电开关115断开。在充电开关114和放电开关115断开后，保护板11继续监测电池组12的温度信息，并在电池组12的温度恢复至正常范围内，保护板11输出连通信号至充电开关114和放电开关115，以控制充电开关114和放电开关115连通。In the embodiment of the present invention, the protection board 11 may further include a charging switch 114 and a discharging switch 115. Both the optional charging switch 114 and the discharging switch 115 can be realized by a MOS tube or a triode. The protection board 11 monitors the temperature information of the battery pack 12 in real time through the temperature detection module 112 provided on it, and compares the monitored temperature information with the pre-stored preset temperature. When the monitored real-time temperature information is greater than When the temperature is equal to or equal to the preset temperature, the protection board 11 determines that the battery pack 12 is in an over-temperature state. At this time, the protection board 11 outputs an over-temperature control signal to the charge switch 114 and the discharge switch 115 to control the charge switch 114 and the discharge switch 115 to turn off open. After the charge switch 114 and the discharge switch 115 are disconnected, the protection board 11 continues to monitor the temperature information of the battery pack 12, and when the temperature of the battery pack 12 returns to the normal range, the protection board 11 outputs a connection signal to the charge switch 114 and the discharge switch 115 to control the connection between the charging switch 114 and the discharging switch 115.
进一步地，该保护板11还通过设置在其上的电压检测模块113对电池组12的电压信息进行实时监测，并在电池组12过压时输出过压控制信号。过压控制信号包括过放控制信号和过充控制信号。具体的，保护板11将监测到的电压信息与阈值电压进行比较判断，其中，阈值电压包括低压阈值电压和高压阈值电压，当实时监测到的电压信息小于或等于低压阈值电压时，保护板11判定电池组12处于过放状态，电池组12过低压，保护板11即输出过放控制信号至放电开关115，以控制放电开关115断开，且继续监测电池组12的电压信息，并在电池组12的电压恢复至正常范围时，输出连通信号至放电开关115，以控制放电开关115连通。当实时监测到的电压信息大于或等于高压阈值时，保护板11判定电池组12处于过充状态，电池组12过高压，保护板11即输出过充控制信号至充电开关114，以控制充电开关114断开，且继续监测电池组12的电压信息，并在电池组12的电压恢复至正常范围时，输出连通信号至充电开关114，以控制充电开关114连通。Further, the protection board 11 also monitors the voltage information of the battery pack 12 in real time through the voltage detection module 113 provided thereon, and outputs an overvoltage control signal when the battery pack 12 is overvoltage. The overvoltage control signal includes an overdischarge control signal and an overcharge control signal. Specifically, the protection board 11 compares the monitored voltage information with the threshold voltage, where the threshold voltage includes a low-voltage threshold voltage and a high-voltage threshold voltage. When the real-time monitored voltage information is less than or equal to the low-voltage threshold voltage, the protection board 11 It is determined that the battery pack 12 is in an over-discharge state, and the battery pack 12 is under-voltage. The protection board 11 outputs an over-discharge control signal to the discharge switch 115 to control the discharge switch 115 to turn off and continue to monitor the voltage information of the battery pack 12, and When the voltage of the group 12 returns to the normal range, a connection signal is output to the discharge switch 115 to control the discharge switch 115 to be connected. When the voltage information monitored in real time is greater than or equal to the high voltage threshold, the protection board 11 determines that the battery pack 12 is in an overcharged state, and the battery pack 12 is over high voltage, and the protection board 11 outputs an overcharge control signal to the charging switch 114 to control the charging switch 114 is disconnected and continues to monitor the voltage information of the battery pack 12, and when the voltage of the battery pack 12 returns to a normal range, a connection signal is output to the charging switch 114 to control the charging switch 114 to be connected.
本发明实施例中，该通信模块13上设有与第一引脚接口111对应的第二引脚接口131，该通信模块13用于接收外部控制指令、并通过第二引脚接口131传输给第一引脚接口111，保护板11通过第一引脚接口111接收控制指令、并根据控制指令控制电池组12的状态，而且，该通信模块13还可以通过第二引脚接口131接收保护板11通过第一引脚接口111输出的电池组12的状态信息，并将所接收到的电池组12的状态信息进行转发，如发送给外部设备，其中，外部设备包括但不限于智能终端、服务器等。In the embodiment of the present invention, the communication module 13 is provided with a second pin interface 131 corresponding to the first pin interface 111, and the communication module 13 is used to receive an external control instruction and transmit it to the second pin interface 131 The first pin interface 111, the protection board 11 receives control instructions through the first pin interface 111, and controls the state of the battery pack 12 according to the control instructions, and the communication module 13 can also receive the protection board through the second pin interface 131 11 The status information of the battery pack 12 output through the first pin interface 111, and the received status information of the battery pack 12 is forwarded, such as sent to an external device, where the external device includes but is not limited to a smart terminal, a server Wait.
进一步地，该通信模块13还与外部设备通信连接，以向外部设备发送状态信息，并通过外部设备对状态信息进行显示；外部设备还用于接收用户输入的控制指令，并将控制指令发送给通信模块13，以通过通信模块13传输给保护板11。Further, the communication module 13 is also communicatively connected with an external device to send status information to the external device and display the status information through the external device; the external device is also used to receive control instructions input by the user and send the control instructions to The communication module 13 is transmitted to the protection board 11 through the communication module 13.
可选的，该通信模块13包括但不限于蓝牙通信模块、WIFI通信模块、移动通信模块、Zigbee通信模块、LORA通信模块中的任意一种。其中，移动通信模块包括但不限于2G、3G、4G、5G等采用移动通信数据传输技术实现的通信模块。Optionally, the communication module 13 includes but is not limited to any one of a Bluetooth communication module, a WIFI communication module, a mobile communication module, a Zigbee communication module, and a LORA communication module. Among them, mobile communication modules include, but are not limited to, 2G, 3G, 4G, 5G and other communication modules implemented by mobile communication data transmission technology.
具体的，该第二引脚接口131的数量取决于保护板11上的第一引脚接口111的数量，当第一引脚接口111设置一个时，对应第一引脚接口111也在通信模块13上设置一个第二引脚接口131，且第二引脚接口131的位置与第一引脚接口111的位置相对；当第一引脚接口111设置多个时，对应第一引脚接口111也在通信模块13上设置多个第二引脚接口131，且每一个第二引脚接口131与对应的第一引脚接口111一一对应设置。如图1所示，分别设有#1、#2、#3、……、#N，共N个第一引脚接口111，对应第一引脚接口111，在通信模块13上也设置#1、#2、#3、……、#N，共N个第二引脚接口131。具体的，如图1所示，#1第二引脚接口131接收#1第一引脚接口111输出的状态信息（如温度信息），同时，#1第二引脚接口131接收外部输入的用于控制与该#1第一引脚接口111所传输的状态信息对应的功能的控制指令（如图温度控制指令）。例如，#1第一引脚接口111输出电池组12的温度信息，并通过#1第二引脚接口131输出给外部设备，当需要下发外部输入的温度控制指令时，该温度控制指令通过#1第二引脚接口131接入，并传输至#1第一引脚接口111，由#1第一引脚接口111接入保护板11；又如，#2第一引脚接口111输出电池组12的电压信息，并通过#2第二引脚接口131输出给外部设备，当需要下发外部输入的电压控制指令时，该电压控制指令通过#2第二引脚接口131接入，并传输至#2第一引脚接口111，由#2第一引脚接口111接入保护板11。Specifically, the number of the second pin interface 131 depends on the number of the first pin interface 111 on the protection board 11. When one first pin interface 111 is set, the corresponding first pin interface 111 is also in the communication module A second pin interface 131 is provided on 13, and the position of the second pin interface 131 is opposite to that of the first pin interface 111; when there are multiple first pin interfaces 111, it corresponds to the first pin interface 111 A plurality of second pin interfaces 131 are also provided on the communication module 13, and each second pin interface 131 is arranged in a one-to-one correspondence with the corresponding first pin interface 111. As shown in Figure 1, there are #1, #2, #3,..., #N, a total of N first pin interfaces 111, corresponding to the first pin interface 111, and # is also set on the communication module 13. 1, #2, #3, ..., #N, a total of N second pin interfaces 131. Specifically, as shown in FIG. 1, the #1 second pin interface 131 receives the status information (such as temperature information) output by the #1 first pin interface 111, and at the same time, the #1 second pin interface 131 receives external input A control command used to control the function corresponding to the status information transmitted by the #1 first pin interface 111 (as shown in the temperature control command). For example, the #1 first pin interface 111 outputs the temperature information of the battery pack 12 and outputs it to the external device through the #1 second pin interface 131. When it is necessary to issue an externally input temperature control command, the temperature control command is passed #1 second pin interface 131 is connected and transmitted to #1 first pin interface 111, and #1 first pin interface 111 is connected to protection board 11; for another example, #2 first pin interface 111 outputs The voltage information of the battery pack 12 is output to external equipment through the #2 second pin interface 131. When an externally input voltage control command needs to be issued, the voltage control command is accessed through the #2 second pin interface 131. It is transmitted to the #2 first pin interface 111, and the #2 first pin interface 111 is connected to the protection board 11.
本发明通过设置该具有数据分析处理功能及控制功能的保护板11，可以实现在电池组12温度过高时，控制充电开关114和放电开关115断开，并在电池组12温度恢复至正常范围后，控制充电开关114和放电开关115连通，以避免异常情况发生，如电池组12燃烧或者爆炸等，还可以实现在电池组12的电压低于低压阈值电压时，控制放电开关115断开，并在电池组12的电压恢复至正常范围内时控制放电开关115连通；或者，在电池组12的电压高于高压阈值电压时，控制充电开关114断开，并在电池组12的电压恢复至正常范围内时控制放电开关115连通；从而可以更好的避免电池组12在过放或过充情况下，对电池组12本身造成的损伤问题，能够有效的延长电池组12的使用寿命。通过以上控制，本发明的保护板11使电池组12具备了自动恢复机制的功能，给用户带来更好的使用体验，防止应用设备（如电动车）在使用过程中出现不必要的抛锚现象。By setting the protection board 11 with data analysis and processing functions and control functions, the present invention can control the charging switch 114 and the discharging switch 115 to be disconnected when the temperature of the battery pack 12 is too high, and the temperature of the battery pack 12 returns to the normal range. Afterwards, the charging switch 114 and the discharging switch 115 are controlled to be connected to avoid abnormal situations, such as the burning or explosion of the battery pack 12, and the discharge switch 115 can be controlled to be turned off when the voltage of the battery pack 12 is lower than the low-voltage threshold voltage. And when the voltage of the battery pack 12 returns to the normal range, the discharge switch 115 is controlled to be connected; or, when the voltage of the battery pack 12 is higher than the high voltage threshold voltage, the charge switch 114 is controlled to be turned off, and the voltage of the battery pack 12 is restored to When the discharge switch 115 is in the normal range, the discharge switch 115 is controlled to be connected; thereby, the damage to the battery pack 12 itself caused by the overdischarge or overcharge of the battery pack 12 can be better avoided, and the service life of the battery pack 12 can be effectively extended. Through the above control, the protection board 11 of the present invention enables the battery pack 12 to have the function of an automatic recovery mechanism, which brings a better user experience to the user and prevents unnecessary breakdown of application equipment (such as electric vehicles) during use. .
进一步地，本发明采用该保护板11可以通过成本较低的方式实现对电池组12的状态信息进行实时监测及状态控制，且利用设置在保护板11上的第一引脚接口111和设置在通信模块13上与第一引脚接口111对应的第二引脚接口131，可以将保护板11采集到的状态信息通过第一引脚接口111、第二引脚接口131传送至通信模块13，并由通信模块13在接收到状态信息的同时，将状态信息传送给智能终端或者服务器，使用户或者管理者能够更好的了解电池组12的状态，维修人员能够更快的确定电池组12的异常问题。Further, the present invention adopts the protection board 11 to realize real-time monitoring and status control of the status information of the battery pack 12 in a low-cost manner, and utilizes the first pin interface 111 provided on the protection board 11 and The second pin interface 131 corresponding to the first pin interface 111 on the communication module 13 can transmit the status information collected by the protection board 11 to the communication module 13 through the first pin interface 111 and the second pin interface 131, When the communication module 13 receives the status information, it transmits the status information to the smart terminal or server, so that the user or administrator can better understand the status of the battery pack 12, and the maintenance personnel can determine the battery pack 12’s status more quickly. Unusual problem.
另外，用户或者管理者可以通过智能终端或者服务器下发外部控制指令至通信模块13，通信模块13通过第二引脚接口131、第一引脚接口111将外部控制指令传送至保护板11，由保护板11根据下发的外部控制指令控制充电开关114和/或放电开关115断开、连通。在电池组12或电动车被盗的情况下，通过控制电池组12的充电开关114和放电开关115控制电池组12的状态，可以达到尽可能的减少损失的目的。本发明采用该保护板11即可以实现对电池组12的多方位监测和控制，以更好的避免异常情况发生，而且保护板11的电源自动恢复机制也能给用户带来更好的体验效果。In addition, users or managers can issue external control commands to the communication module 13 through a smart terminal or server, and the communication module 13 transmits the external control commands to the protection board 11 through the second pin interface 131 and the first pin interface 111, and The protection board 11 controls the charging switch 114 and/or the discharging switch 115 to be disconnected and connected according to the issued external control command. In the case that the battery pack 12 or the electric vehicle is stolen, the state of the battery pack 12 can be controlled by controlling the charge switch 114 and the discharge switch 115 of the battery pack 12 to reduce the loss as much as possible. The present invention adopts the protection board 11 to realize multi-directional monitoring and control of the battery pack 12 to better avoid abnormal situations, and the automatic power recovery mechanism of the protection board 11 can also bring better experience to users. .
进一步地，本发明还提供了一种电池组监控方法，该电池组监控方法可以应用于本发明实施例提供的电池组监控系统。Further, the present invention also provides a battery pack monitoring method, which can be applied to the battery pack monitoring system provided by the embodiment of the present invention.
具体的，该电池组监控系统设置在工具箱上，工具箱包括箱体10，箱体10内设有容纳空间，电池组监控系统包括电池组12、与电池组12连接的保护板11以及与保护板11通信连接的通信模块13；电池组12和保护板11安放于容纳空间中，通信模块13与保护板11分开设置且安装在箱体10的侧壁或者容纳空间中。Specifically, the battery pack monitoring system is arranged on a toolbox, the toolbox includes a box body 10, and the box body 10 is provided with an accommodation space. The battery pack monitoring system includes a battery pack 12, a protection board 11 connected to the battery pack 12, and The communication module 13 to which the protection board 11 is communicatively connected; the battery pack 12 and the protection board 11 are placed in the accommodating space, and the communication module 13 is arranged separately from the protection board 11 and installed on the side wall of the box 10 or the accommodating space.
如图4所示，该电池组监控方法包括以下步骤：As shown in Figure 4, the battery pack monitoring method includes the following steps:
步骤S1、保护板11检测电池组12的状态信息；Step S1, the protection board 11 detects the status information of the battery pack 12;
步骤S2、保护板11通过第一引脚接口111将状态信息发送给第二引脚接口131；第二引脚接口131与第一引脚接口111对应设置；Step S2. The protection board 11 sends the status information to the second pin interface 131 through the first pin interface 111; the second pin interface 131 is set corresponding to the first pin interface 111;
步骤S3、通信模块13通过第二引脚接口131接收状态信息并对状态信息进行转发，以及接收外部控制指令、并通过第二引脚接口131传输给第一引脚接口111，以将控制指令传输给保护板11；Step S3: The communication module 13 receives the status information through the second pin interface 131 and forwards the status information, and receives an external control instruction, and transmits it to the first pin interface 111 through the second pin interface 131 to transfer the control instruction Transfer to the protection board 11;
步骤S4、保护板11根据控制指令控制电池组12的状态。Step S4: The protection board 11 controls the state of the battery pack 12 according to the control command.
本发明实施例的电池组12的状态信息包括但不限于电池组12的状态信息包括但不限于电池组12的温度信息、电池组12的充电电流信息、电池组12的放电电流信息、电池组12的充电电压信息、电池组12的放电电压信息等。该电池组监控方法还包括以下步骤：The state information of the battery pack 12 in the embodiment of the present invention includes but is not limited to the state information of the battery pack 12, including but not limited to the temperature information of the battery pack 12, the charging current information of the battery pack 12, the discharge current information of the battery pack 12, and the battery pack. 12 charging voltage information, discharging voltage information of the battery pack 12, etc. The battery pack monitoring method also includes the following steps:
步骤S1-0、保护板11对电池组12的温度进行实时检测，以获取电池组12的温度信息；Step S1-0: The protection board 11 detects the temperature of the battery pack 12 in real time to obtain the temperature information of the battery pack 12;
步骤S1-1、保护板11将温度信息与预设温度进行比较，并在温度信息大于或等于预设温度时，输出过温控制信号，以控制充电开关114和放电开关115断开。Step S1-1: The protection board 11 compares the temperature information with the preset temperature, and when the temperature information is greater than or equal to the preset temperature, outputs an over-temperature control signal to control the charging switch 114 and the discharging switch 115 to turn off.
可以理解地，当电池组12的实时温度大于或等于预设温度时，说明电池组12目前的温度过高，因此，为了避免异常情况（如燃烧或者爆炸）发生，保护板11输出过温控制信号控制充电开关114和放电开关115断开，以保证电池组12的安全。Understandably, when the real-time temperature of the battery pack 12 is greater than or equal to the preset temperature, it means that the current temperature of the battery pack 12 is too high. Therefore, in order to avoid abnormal situations (such as burning or explosion), the protection board 11 outputs an over-temperature control The signal controls the charging switch 114 and the discharging switch 115 to be disconnected to ensure the safety of the battery pack 12.
进一步地，该电池组监控方法还包括以下步骤：Further, the battery pack monitoring method further includes the following steps:
步骤S2-0、保护板11对电池组12的电压进行实时检测，以获取电池组12的电压信息；Step S2-0: The protection board 11 detects the voltage of the battery pack 12 in real time to obtain the voltage information of the battery pack 12;
步骤S2-1、保护板11将电压信息与第一预设电压进行比较，并在电压信息小于或等于第一预设电压时，输出过放控制信号以控制放电开关115断开。Step S2-1: The protection board 11 compares the voltage information with the first preset voltage, and when the voltage information is less than or equal to the first preset voltage, outputs an over-discharge control signal to control the discharge switch 115 to turn off.
进一步地，在步骤S2-0之后还包括：保护板11将电压信息与第二预设电压进行比较，并在电压信息大于或等于第二预设电压时，输出过充控制信号以控制充电开关114断开。Further, after step S2-0, the method further includes: the protection board 11 compares the voltage information with a second preset voltage, and when the voltage information is greater than or equal to the second preset voltage, outputs an overcharge control signal to control the charging switch 114 disconnected.
在电池组12出现过充或者过放的情况时，通过保护板11及时输出过充控制信号控制充电开关114断开，以控制电池组12停止充电；或输出过放控制信号控制放电开关115断开，以控制电池组12停止放电，从而可以更好的避免电池组12在过充或过放情况下对电池组12本身造成的操作问题，能够有效延长电池组12的使用寿命。When the battery pack 12 is overcharged or overdischarged, the protection board 11 outputs an overcharge control signal in time to control the charging switch 114 to turn off to control the battery pack 12 to stop charging; or output an overdischarge control signal to control the discharge switch 115 to turn off It is turned on to control the battery pack 12 to stop discharging, which can better avoid the operating problems of the battery pack 12 caused by the battery pack 12 under overcharge or over-discharge conditions, and can effectively extend the service life of the battery pack 12.
以上实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据此实施，并不能限制本发明的保护范围。凡跟本发明权利要求范围所做的均等变化与修饰，均应属于本发明权利要求的涵盖范围。The above embodiments are only to illustrate the technical ideas and features of the present invention, and their purpose is to enable those familiar with the technology to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes and modifications made to the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。It should be understood that those of ordinary skill in the art can make improvements or transformations based on the above description, and all these improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims (10)

  1. 一种电池组监控系统，所述电池组监控系统设置在工具箱上，所述工具箱包括箱体，所述箱体内设有容纳空间，其特征在于，所述电池组监控系统包括电池组、与电池组连接的保护板、以及与所述保护板通信连接的通信模块；A battery pack monitoring system, the battery pack monitoring system is arranged on a tool box, the tool box includes a box body, the box body is provided with an accommodation space, characterized in that the battery pack monitoring system includes a battery pack , A protection board connected with the battery pack, and a communication module communicatively connected with the protection board;
    所述电池组和所述保护板安放于所述容纳空间中，所述通信模块与所述保护板分开设置且安装在所述箱体的侧壁或者所述容纳空间中；所述保护板设有至少一个第一引脚接口，所述通信模块上设有与所述第一引脚接口对应的第二引脚接口；The battery pack and the protection board are placed in the accommodating space, and the communication module is arranged separately from the protection board and installed on the side wall of the box or the accommodating space; the protection board is arranged There is at least one first pin interface, and a second pin interface corresponding to the first pin interface is provided on the communication module;
    所述保护板用于检测所述电池组的状态信息、并通过所述第一引脚接口传输给所述第二引脚接口，所述通信模块通过所述第二引脚接口接收所述状态信息、并将所述状态信息进行转发；The protection board is used to detect the status information of the battery pack and transmit it to the second pin interface through the first pin interface, and the communication module receives the status through the second pin interface Information and forward the state information;
    所述通信模块接收外部控制指令、并通过所述第二引脚接口传输给所述第一引脚接口，所述保护板通过所述第一引脚接口接收所述控制指令、并根据所述控制指令控制所述电池组的状态。The communication module receives an external control instruction and transmits it to the first pin interface through the second pin interface, and the protection board receives the control instruction through the first pin interface, and according to the The control command controls the state of the battery pack.
  2. 根据权利要求1所述的电池组监控系统，其特征在于，所述保护板包括温度检测模块和电压检测模块；The battery pack monitoring system according to claim 1, wherein the protection board comprises a temperature detection module and a voltage detection module;
    所述温度检测模块用于检测所述电池组的实时温度以获得所述电池组的温度信息，所述电压检测模块用于检测所述电池组的实时电压以获得所述电池组的电压信息；The temperature detection module is configured to detect the real-time temperature of the battery pack to obtain temperature information of the battery pack, and the voltage detection module is configured to detect the real-time voltage of the battery pack to obtain the voltage information of the battery pack;
    所述温度信息和所述电压信息形成所述状态信息。The temperature information and the voltage information form the state information.
  3. 根据权利要求2所述的电池组监控系统，其特征在于，所述保护板还包括：充电开关和放电开关；The battery pack monitoring system according to claim 2, wherein the protection board further comprises: a charging switch and a discharging switch;
    所述保护板对所述温度信息进行实时监测，并在所述电池组过温时输出过温控制信号至所述充电开关和放电开关，以控制所述充电开关和放电开关断开；The protection board monitors the temperature information in real time, and outputs an over-temperature control signal to the charging switch and the discharging switch when the battery pack is over-temperature, so as to control the charging switch and the discharging switch to turn off;
    所述保护板还用于对所述电压信息进行实时监测，并在电池组过压时输出过压控制信号。The protection board is also used to monitor the voltage information in real time, and output an overvoltage control signal when the battery pack is overvoltage.
  4. 根据权利要求3所述的电池组监控系统，其特征在于，所述过压控制信号包括过放控制信号和过充控制信号；The battery pack monitoring system according to claim 3, wherein the overvoltage control signal comprises an overdischarge control signal and an overcharge control signal;
    所述保护板在所述电池组过低压时，输出所述过放控制信号至所述放电开关，以控制所述放电开关断开；所述保护板在所述电池组过高压时，输出所述过充控制信号至所述充电开关，以控制所述充电开关断开。The protection board outputs the over-discharge control signal to the discharge switch when the battery pack is under low voltage to control the discharge switch to turn off; when the battery pack is over high voltage, the protection board outputs The overcharge control signal is sent to the charging switch to control the charging switch to turn off.
  5. 根据权利要求1所述的电池组监控系统，其特征在于，所述通信模块还与外部设备通信连接，以向所述外部设备发送所述状态信息，并通过所述外部设备对所述状态信息进行显示；The battery pack monitoring system according to claim 1, wherein the communication module is also communicatively connected with an external device to send the status information to the external device, and the status information is received by the external device Display
    所述外部设备还用于接收用户输入的控制指令，并将所述控制指令发送给所述通信模块，以通过所述通信模块传输给所述保护板。The external device is also used to receive a control instruction input by a user, and send the control instruction to the communication module for transmission to the protection board through the communication module.
  6. 根据权利要求1-5任一项所述的电池组监控系统，其特征在于，所述通信模块包括蓝牙通信模块、WIFI通信模块、移动通信模块中的任意一种。The battery pack monitoring system according to any one of claims 1-5, wherein the communication module comprises any one of a Bluetooth communication module, a WIFI communication module, and a mobile communication module.
  7. 一种电池组监控方法，应用于权利要求1-6任一项所述的电池组监控系统，所述电池组监控系统设置在工具箱上，所述工具箱包括箱体，所述箱体内设有容纳空间，所述电池组监控系统包括电池组、与电池组连接的保护板以及与保护板通信连接的通信模块；所述电池组和所述保护板安放于所述容纳空间中，所述通信模块与所述保护板分开设置且安装在所述箱体的侧壁或者所述容纳空间中，其特征在于，包括：A battery pack monitoring method, applied to the battery pack monitoring system according to any one of claims 1-6, the battery pack monitoring system is arranged on a tool box, the tool box includes a box body, the box body An accommodation space is provided. The battery pack monitoring system includes a battery pack, a protection board connected to the battery pack, and a communication module communicatively connected to the protection board; the battery pack and the protection board are placed in the accommodation space, so The communication module is arranged separately from the protection board and installed in the side wall of the box or the containing space, and is characterized in that it includes:
    S1、所述保护板检测所述电池组的状态信息；S1. The protection board detects the status information of the battery pack;
    S2、所述保护板通过第一引脚接口将所述状态信息发送给第二引脚接口；所述第二引脚接口与所述第一引脚接口对应设置；S2. The protection board sends the status information to the second pin interface through the first pin interface; the second pin interface is set corresponding to the first pin interface;
    S3、所述通信模块通过所述第二引脚接口接收所述状态信息并对所述状态信息进行转发，以及接收外部控制指令、并通过所述第二引脚接口传输给第一引脚接口，以将所述控制指令传输给所述保护板；S3. The communication module receives the status information through the second pin interface and forwards the status information, and receives an external control instruction, and transmits it to the first pin interface through the second pin interface , To transmit the control instruction to the protection board;
    S4、所述保护板根据所述控制指令控制所述电池组的状态。S4. The protection board controls the state of the battery pack according to the control instruction.
  8. 根据权利要求7所述的电池组监控方法，其特征在于，所述方法还包括：The battery pack monitoring method according to claim 7, wherein the method further comprises:
    S1-0、所述保护板对所述电池组的温度进行实时检测，以获取所述电池组的温度信息；S1-0. The protection board detects the temperature of the battery pack in real time to obtain temperature information of the battery pack;
    S1-1、所述保护板将所述温度信息与预设温度进行比较，并在所述温度信息大于或等于预设温度时，输出过温控制信号，以控制充电开关和放电开关断开。S1-1. The protection board compares the temperature information with a preset temperature, and when the temperature information is greater than or equal to the preset temperature, outputs an over-temperature control signal to control the charging switch and the discharging switch to turn off.
  9. 根据权利要求7所述的电池组监控方法，其特征在于，所述方法还包括：The battery pack monitoring method according to claim 7, wherein the method further comprises:
    S2-0、所述保护板对所述电池组的电压进行实时检测，以获取所述电池组的电压信息；S2-0. The protection board detects the voltage of the battery pack in real time to obtain the voltage information of the battery pack;
    S2-1、所述保护板将所述电压信息与第一预设电压进行比较，并在所述电压信息小于或等于第一预设电压时，输出过放控制信号以控制放电开关断开。S2-1. The protection board compares the voltage information with a first preset voltage, and when the voltage information is less than or equal to the first preset voltage, outputs an over-discharge control signal to control the discharge switch to turn off.
  10. 根据权利要求9所述的电池组监控方法，其特征在于，所述方法还包括：所述步骤S2-0之后还包括：The battery pack monitoring method according to claim 9, wherein the method further comprises: after the step S2-0, the method further comprises:
    所述保护板将所述电压信息与第二预设电压进行比较，并在所述电压信息大于或等于第二预设电压时，输出过充控制信号以控制充电开关断开。The protection board compares the voltage information with a second preset voltage, and when the voltage information is greater than or equal to the second preset voltage, outputs an overcharge control signal to control the charging switch to turn off.
PCT/CN2019/104562 2019-04-25 2019-09-05 Battery pack monitoring system and method WO2020215583A1 (en)

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