WO2018006685A1 - 一种具有平衡充电控制模块的应急电源 - Google Patents

一种具有平衡充电控制模块的应急电源 Download PDF

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WO2018006685A1
WO2018006685A1 PCT/CN2017/087833 CN2017087833W WO2018006685A1 WO 2018006685 A1 WO2018006685 A1 WO 2018006685A1 CN 2017087833 W CN2017087833 W CN 2017087833W WO 2018006685 A1 WO2018006685 A1 WO 2018006685A1
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control module
resistor
module
power supply
transistor
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PCT/CN2017/087833
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English (en)
French (fr)
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王勇
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华馨晶贸易（深圳）有限公司
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

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  • the utility model particularly relates to an emergency power supply with a balanced charging control module.
  • the automobile emergency power supply is a new type of multifunctional portable mobile power source, which is mainly used for providing the voltage and current required for starting the automobile when the battery of the automobile itself is insufficient, and assisting in starting the automobile.
  • the automobile emergency power supply adopts multi-cell lithium battery serial output. Because of the limitations of the battery manufacturing process, the internal resistance and charge-discharge characteristics of each lithium battery core will be different; when the lithium battery core passes the high current during the starting process of the automobile After the output, the difference in characteristics of each cell will be more obvious. The most common performance is that under the same charging current conditions, the time required for each cell to reach full (cutoff voltage) will be significantly different.
  • the common automotive emergency power supply in the market only manages the total voltage of the series battery. As a result, the total voltage reaches the set charging voltage, but some of the cells have not reached the cutoff voltage, and there are several sections. If the cut-off voltage has been exceeded, the battery will be damaged, which will make the whole product unable to be used normally, posing a safety hazard.
  • the technical problem to be solved by the utility model is to provide an emergency power supply with a balanced charging control module, and the emergency power supply with the balanced charging control module can effectively ensure the voltage balance of each battery core, which is beneficial to the continuous and stable operation of the power supply.
  • An emergency power supply with a balanced charging control module comprising a battery core group, a central control module, a charging control module, a balance control module and a voltage detection module; the battery core group has N cells connected in series; N is greater than An integer of 2;
  • the charging control module, the balance control module and the voltage detection module are all connected to the central control module;
  • the balance control module comprises N discharge circuits based on electronic switches and discharge resistors; N discharge circuits are respectively connected to N batteries; and the electronic switches are triodes or field effect transistors;
  • Transistor b or FET g is connected to the IO port of the central control module.
  • the central control module is also connected with an LED display module, a temperature detection module and a current detection module.
  • the modules such as the charging control module, the LED display module, the temperature detecting module and the current detecting module are all existing mature circuit modules.
  • the central control module is built with discrete digital devices (such as NAND gates) or MCUs (such as microcontrollers, DSPs). Etc.), belonging to the protection object of the utility model.
  • discrete digital devices such as NAND gates
  • MCUs such as microcontrollers, DSPs. Etc.
  • the emergency power supply with the balanced charging control module of the utility model has the voltage detection module and the balance control module to realize the voltage balance of each battery core; the voltage of each battery core is not too high or too low; The power supply continues to work steadily, extending the life of the battery.
  • 1 is a circuit block diagram of an emergency power supply with a balanced charging control module
  • Figure 2 is a circuit schematic of the balance control module.
  • an emergency power supply having a balanced charging control module, including a battery core group, a central control module, a charging control module, a balance control module, and a voltage detection module;
  • the battery core group has N powers connected in series Core; N is an integer greater than 2;
  • the charging control module, the balance control module and the voltage detection module are all connected to the central control module;
  • the balance control module comprises N discharge circuits based on the triode and the discharge resistor; the N discharge circuits are respectively connected to the N batteries;
  • the transistor b is connected to the IO port of the MCU.
  • the central control module is also connected with an LED display module, a temperature detection module and a current detection module.
  • the central control module uses the MCU control module, the MCU control module is the core of the entire line, and the power adapter module is responsible for providing a certain voltage and current for charging the battery;
  • the MCU control module monitors the voltage of each battery cell through the voltage detection module; monitors the charging current through the current detection module, and monitors the battery temperature through the temperature detection module; the MCU control module adjusts the charging voltage of the battery pack through the charging control module.
  • Current, constant current and constant voltage charging management; charging control module is prior art; and in the charging process, through The overbalance control module adjusts the voltage of each individual cell to make each cell voltage consistent.
  • the balance control module includes: transistor Q3, resistor R17, resistor R19, transistor Q12, resistor R21, resistor R23, transistor Q6, resistor R25, resistor R27, transistor Q13, resistor R22, resistor R31, resistor R34, transistor Q11 , resistor R36.
  • the triode Q3, the resistor R17, the resistor R19, the triode Q12, the resistor R21, and the resistor R23 constitute a balanced discharge circuit of the first cell, and the single-chip control port 1 is connected to one end of the R21 to control whether the balanced discharge circuit of the cell 1 is turned on.
  • the triode Q6, the resistor R25, the resistor R27, the triode Q13, the resistor R22, and the resistor R31 constitute a balanced discharge circuit of the second cell, and the MCU control port 2 is connected to one end of the R22 to control whether to open the balanced discharge circuit of the second cell.
  • B1, B2 and B3 are respectively connected to the positive electrodes of the three batteries.
  • the resistor R34, the transistor Q11, and the resistor R36 form a balanced discharge circuit of the third core, and the control port 3 of the single chip is connected to one end of the R36 to control whether to open the balanced discharge circuit of the third core.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种具有平衡充电控制模块的应急电源，包括电芯组、中央控制模块、充电控制模块、平衡控制模块和电压侦测模块；电芯组具有N个串接在一起的电芯；N为大于2的整数；充电控制模块、平衡控制模块和电压侦测模块均与中央控制模块相连；平衡控制模块包括N个基于电子开关（三极管或场效应管）和放电电阻的放电电路；N个放电电路分别与N个电芯相接；三极管b级或场效应管g级接MCU的IO端口。中央控制模块还连接有LED显示模块、温度侦测模块和电流侦测模块。该具有平衡充电控制模块的应急电源能有效保障各电芯电压维持平衡，有利于电源持续稳定工作。

Description

一种具有平衡充电控制模块的应急电源 技术领域
本实用新型特别涉及一种具有平衡充电控制模块的应急电源。
背景技术
汽车应急电源是一种新型的多功能便携移动电源，主要用于汽车自身电瓶电量不够时，提供汽车启动所需的电压和电流，协助启动汽车。
汽车应急电源均采用多节锂电芯串联输出，因为电芯制造工艺的局限性，每节锂电芯的内阻和充放电特性都会有所差异；当锂电电芯在汽车启动过程中经过大电流的输出后，每节电芯的特性差异还会更加明显，最常见的表现就是在同样的充电电流条件下，每节电芯到达充满(截止电压)所需要的时间会有明显的不同。
目前市面常见的汽车应急电源，都只对串联电池的总电压进行管理，这样的结果就会出现总电压达到设定的充电电压，但是某几节电芯还未达到截止电压，另外有几节已经超过截止电压的情况，造成某节电芯损坏，进而使整个产品无法正常使用，带来安全隐患。
因此，有必要设计一种新的具有平衡充电控制模块的应急电源。
实用新型内容
本实用新型所要解决的技术问题是提供一种具有平衡充电控制模块的应急电源，该具有平衡充电控制模块的应急电源能有效保障各电芯电压维持平衡，有利于电源持续稳定工作。
实用新型的技术解决方案如下：
一种具有平衡充电控制模块的应急电源，包括电芯组、中央控制模块、充电控制模块、平衡控制模块和电压侦测模块；电芯组具有N个串接在一起的电芯；N为大于2的整数；
充电控制模块、平衡控制模块和电压侦测模块均与中央控制模块相连；
平衡控制模块包括N个基于电子开关和放电电阻的放电电路；N个放电电路分别与N个电芯相接；电子开关为三极管或场效应管；
三极管b级或场效应管g级接中央控制模块的IO端口。
中央控制模块还连接有LED显示模块、温度侦测模块和电流侦测模块。
充电控制模块、LED显示模块、温度侦测模块和电流侦测模块等模块均为现有的成熟电路模块。
中央控制模块采用分立的数字器件(如与非门等)搭建，或采用MCU(如单片机，DSP 等)，属于实用新型的保护客体。
有益效果：
本实用新型的具有平衡充电控制模块的应急电源，其核心是采用电压侦测模块和平衡控制模块实现各电芯的电压平衡；保障每一个电芯的电压不会过高或过低；有利于电源持续稳定工作，从而延长电芯的使用寿命。
附图说明
图1为具有平衡充电控制模块的应急电源的电路原理框图；
图2为平衡控制模块的电路原理图。
具体实施方式
为了便于理解本实用新型，下文将结合说明书附图和较佳的实施例对本文实用新型做更全面、细致地描述，但本实用新型的保护范围并不限于以下具体实施例。
除非另有定义，下文中所使用的所有专业术语与本领域技术人员通常理解含义相同。本文中所使用的专业术语只是为了描述具体实施例的目的，并不是旨在限制本实用新型的保护范围。
实施例1：
图1至2，一种具有平衡充电控制模块的应急电源，包括电芯组、中央控制模块、充电控制模块、平衡控制模块和电压侦测模块；电芯组具有N个串接在一起的电芯；N为大于2的整数；
充电控制模块、平衡控制模块和电压侦测模块均与中央控制模块相连；
平衡控制模块包括N个基于三极管和放电电阻的放电电路；N个放电电路分别与N个电芯相接；
三极管b级接MCU的IO端口。
中央控制模块还连接有LED显示模块、温度侦测模块和电流侦测模块。
中央控制模块采用MCU控制模块，MCU控制模块是整个线路的核心，电源适配器模块负责提供一定的电压和电流用于电池的充电；
MCU控制模块通过电压侦测模块监测每颗电芯的电压；通过电流侦测模块监测充电电流，以及通过温度侦测模块监测电池组温度；MCU控制模块通过充电控制模块调整电池组的充电电压和电流，实现恒流恒压充电管理；充电控制模块为现有技术；并在充电过程中，通 过平衡控制模块调整单独每颗电芯的电压，使每颗电芯电压达到一致。
如图2，平衡控制模块包含：三极管Q3,电阻R17,电阻R19,三极管Q12,电阻R21,电阻R23,三极管Q6,电阻R25,电阻R27,三极管Q13,电阻R22,电阻R31,电阻R34,三极管Q11,电阻R36。由三极管Q3,电阻R17,电阻R19,三极管Q12,电阻R21,电阻R23构成第第1电芯的平衡放电回路，单片机控制口1连接到R21的一端，控制是否开启电芯1的平衡放电回路。由三极管Q6,电阻R25,电阻R27,三极管Q13,电阻R22,电阻R31构成第2电芯的平衡放电回路，单片机控制口2连接到R22的一端，控制是否开启第2电芯的平衡放电回路。图中B1、B2和B3分别接3个电芯的正极。由电阻R34,三极管Q11,电阻R36构成第3电芯的平衡放电回路，单片机控制口3连接到R36的一端，控制是否开启第三电芯的平衡放电回路。

Claims (2)

  1. 一种具有平衡充电控制模块的应急电源，其特征在于，包括电芯组、中央控制模块、充电控制模块、平衡控制模块和电压侦测模块；电芯组具有N个串接在一起的电芯；N为大于2的整数；
    充电控制模块、平衡控制模块和电压侦测模块均与中央控制模块相连；
    平衡控制模块包括N个基于电子开关和放电电阻的放电电路；N个放电电路分别与N个电芯相接；电子开关为三极管或场效应管；
    三极管b级或场效应管g级接中央控制模块的IO端口；
    中央控制模块为单片机；
    平衡控制模块包含：三极管Q3,电阻R17,电阻R19,三极管Q12,电阻R21,电阻R23,三极管Q6,电阻R25,电阻R27,三极管Q13,电阻R22,电阻R31,电阻R34,三极管Q11,电阻R36；由三极管Q3,电阻R17,电阻R19,三极管Q12,电阻R21,电阻R23构成第第1电芯的平衡放电回路，单片机控制口1连接到R21的一端，控制是否开启电芯1的平衡放电回路；由三极管Q6,电阻R25,电阻R27,三极管Q13,电阻R22,电阻R31构成第2电芯的平衡放电回路，单片机控制口2连接到R22的一端，控制是否开启第2电芯的平衡放电回路；B1、B2和B3分别接3个电芯的正极；由电阻R34,三极管Q11,电阻R36构成第3电芯的平衡放电回路，单片机控制口3连接到R36的一端，控制是否开启第三电芯的平衡放电回路。
  2. 根据权利要求1所述的具有平衡充电控制模块的应急电源，其特征在于，中央控制模块还连接有LED显示模块、温度侦测模块和电流侦测模块。
PCT/CN2017/087833 2016-07-07 2017-06-10 一种具有平衡充电控制模块的应急电源 WO2018006685A1 (zh)

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