WO2018195676A1 - 一种多功能充电箱 - Google Patents

一种多功能充电箱 Download PDF

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Publication number
WO2018195676A1
WO2018195676A1 PCT/CN2017/000334 CN2017000334W WO2018195676A1 WO 2018195676 A1 WO2018195676 A1 WO 2018195676A1 CN 2017000334 W CN2017000334 W CN 2017000334W WO 2018195676 A1 WO2018195676 A1 WO 2018195676A1
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WO
WIPO (PCT)
Prior art keywords
charging box
battery
charging
interface
charge
Prior art date
Application number
PCT/CN2017/000334
Other languages
English (en)
French (fr)
Inventor
曾金辉
Original Assignee
深圳市储能电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市储能电子有限公司 filed Critical 深圳市储能电子有限公司
Priority to JP2019600006U priority Critical patent/JP3222166U/ja
Publication of WO2018195676A1 publication Critical patent/WO2018195676A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection

Definitions

  • the utility model relates to a charging device, in particular to a multifunctional charging box.
  • the purpose of the utility model is to provide a compact portable device, which can charge various electric tools for a long time, and can also charge electronic products such as drones and mobile phones, and can also illuminate in case of poor light.
  • the utility model provides a multifunctional charging box.
  • a multifunctional charging box comprises an upper cover, an upper shell, a lower shell and a base, and further comprises a battery pack fixed on the base inside the lower shell, the battery pack is provided with a battery protection board, and the control circuit board is fixed on the battery protection
  • the board further includes a control switch and an LED indicator provided on the upper casing, and an input interface for charging the power tool charging box on the upper casing, an output interface for charging the power tool, and an output interface for charging other products.
  • intelligently recognize electronic devices such as mobile phones and tablets, and also include LED lighting lamps disposed on the upper casing and handles fixed on the lower casing.
  • the battery pack is responsible for the electrical energy storage, that is, the electrical energy is stored through the battery, and may be a battery pack composed of a rechargeable battery such as a nickel-hydrogen, a nickel-cadmium, a lithium battery, or a lead-acid battery.
  • a rechargeable battery such as a nickel-hydrogen, a nickel-cadmium, a lithium battery, or a lead-acid battery.
  • the control circuit board controls the charging, discharging, communication, lighting, input and output control functions of the entire charging box to ensure the normal use of the multifunctional charging box.
  • the LED indicator can indicate the current battery status and also has a working status indication to remind others that the multi-function charging box is currently in use and should be carefully avoided.
  • LED lighting can assist the multi-function charging box when the light is not good, for lighting when working, or as a separate lighting.
  • the LED illuminator can issue the SOS emergency distress signal in an emergency.
  • the specific operation is as follows. Press and hold the control switch for 5 seconds, and the LED illuminator will start to flash in three short, three long and three short modes (international SOS for help light signal) , thus issuing an SOS emergency distress signal.
  • the input and output interfaces may be composed of one or more, one or more (such as a USB interface, a DC, an EC5 interface, etc.). Through the input interface, other power supplies can be given to the multi-function charging box Charging; through the output interface, the multi-function charging box can charge power tools and other products.
  • FIG. 1 is a schematic view showing the structure of an embodiment of a charging box of the present invention.
  • Figure 2 shows a rear view of Figure 1.
  • FIG. 3 is a schematic view showing the internal structure of the charging box of the present invention.
  • FIG. 4 is a block diagram showing the electrical principle of the charging box of the present invention.
  • FIG. 5 is a flow chart showing the battery pack state detection of the present invention.
  • Figure 6 shows a flow chart of the no-load detection of the present invention.
  • Fig. 7 is a flow chart showing the initial identification of the charging voltage when the 4.25V, 4.35V battery of the present invention is used.
  • Fig. 8 is a schematic view showing the structure of another embodiment of the charging box of the present invention.
  • Figure 9 shows a rear view of Figure 8.
  • the multifunctional charging box includes a handle 1, an upper cover 2, an upper casing 3, a lower casing 5, and a base 6, and further includes a fixing body disposed inside the lower casing 5 a battery pack 14 on the base 6, a battery protection plate 13 on the battery pack 14, a control circuit
  • the board 12 is fixed on the battery protection board 13 and connected to each of the associated components; a control switch 7 and an LED indicator 8 are disposed on a side of the upper case 3 adjacent to the handle 1, and the upper case 3 is close to the handle
  • the other side of the 1 is provided with an input interface 10 and an output interface 11 for charging the power tool; on one side of the upper case 3 without the handle 1 is provided with an LED illumination lamp 4, which is disposed on the corresponding other side thereof There is an output interface 9 for charging other products.
  • the output interface 11 of the multifunctional charging box adopts an EC5 interface and is provided with a dustproof cover 12, which can output a current of 60V100A, and is connected through an EC5 interface.
  • the line can supply power to various power tools and tool batteries, drones, etc.
  • This charging box uses lithium batteries, multiple lithium batteries are connected in series, can output different voltages and currents to meet the power supply of different power tools and tools; input interface 10, charging with DC power; output interface 9 can be One USB interface and one TYPE-C interface, or two USB interfaces and two TYPE-C interfaces, or multiple USB interfaces and multiple TYPE-C interfaces, can simultaneously be two or more smartphones, tablets Wait for electronic equipment to supply power.
  • LED indicator 8 can display the power in sections, can know the remaining power in real time, can also indicate the working status, can remind others, the multi-function charging box is now in use, should be careful to avoid.
  • the control switch 7 is an integrated button switch, and is responsible for the switching of the power source and the switching of the LED lamp and the mode.
  • LED illuminator 4 which can be used to illuminate, fill light and emit SOS signals in an emergency.
  • the electrical principle block diagram of this multifunctional charging box is shown in Figure 4, including the connection with the main control.
  • the battery pack and protection circuit unit 102 and the charging management unit 104 of the unit 105 further include an LED lighting unit 101, a power amount indicating unit 103, a normal output unit 106, a high power output unit 108, and an input unit 107 respectively connected to the main control unit 105.
  • the main control unit 105 is disposed on the control circuit board 12.
  • the LED lighting unit 101 is provided with one or more LED lamps, and can assist the multifunctional lithium battery charging device when the light is not good, for lighting during operation, or can be used as a separate lighting device.
  • the LED lighting unit 101 can issue an SOS emergency distress signal in an emergency situation.
  • the specific operation is as follows: long press the control switch for 5 seconds, the LED lighting starts to flash in three short, three long, three short modes (international standard SOS SOS light signal) ), thereby issuing an SOS emergency distress signal.
  • the battery pack in the battery pack and the protection circuit unit 102 is mainly for storing energy, storing electric energy during charging, and releasing the electric energy when working, the battery pack may be composed of a rechargeable battery such as nickel-hydrogen, nickel-cadmium or lithium battery.
  • the protection circuit is mainly to protect the safety of the battery and prevent the overcharge and over discharge from damaging the battery.
  • the power indicator unit 103 can indicate the current battery state, and can display the power in segments, and the remaining battery can be known in real time.
  • the charge management unit 104 can perform charge management on the external input power source to ensure safe charging of the battery pack.
  • the main control unit control 105 is provided with an MCU and a control switch, and the main control unit controls charging, discharging, lighting, input, output and the like of the entire charging device to ensure normal use of the charging device.
  • the conventional output unit 106 is provided with an output interface, which may be composed of one or more, one or more (such as a USB interface, a DC interface, etc.). Through the output interface, the multi-function lithium battery charging device can charge other products.
  • the high-power output unit 108 is specially designed for charging an external lithium battery, and can automatically recognize the voltage of the lithium battery and correctly charge.
  • the lithium battery output unit is provided with an output interface, and the output interface may be composed of one or more, one or more (such as a USB interface, a DC, an EC5 interface, etc.).
  • the output interface Through the output interface, the multi-function lithium battery charging device can charge the lithium battery.
  • the multi-function drone charging device can charge the drone.
  • the input unit 107 is provided with an input interface for connecting an externally input charging power source, and the input interface may be composed of one or more, one or more (such as a USB interface, a DC interface, etc.).
  • An external power supply can charge the multi-function lithium battery charging device through the input interface;
  • the utility model can charge the lithium battery, can automatically identify the number of strings of the lithium battery and charge the correct voltage to ensure the charging safety of the battery.
  • the working principle is: a lithium battery output unit 7 of the lithium battery charging device has a detecting resistor connected in series, and the MCU of the main control unit 5 can detect the voltage and current by detecting the signal fed back from the resistor, and then determine the output to be output. Charging voltage.
  • the lithium battery has a protection circuit to ensure that the battery cell is not overcharged.
  • the protection voltage of the single cell is 4.25V or 4.35V, and the two series of overshoot protection voltage is 8.5V or 8.7V. It is 12.75V or 13.05V, and the four-string protection voltage is 17V or 17.4V.
  • the lithium battery charger provides a charging voltage of 4.25V to charge the battery.
  • the lithium battery charging device will give a small current signal of 4.35V. If the MCU detection voltage is 4.35V, it means that the battery is 4.25V, and it is already full, and the electric box stops feeding.
  • the MCU detects that the voltage is 4.25V, which means that the battery is a high voltage battery of 4.35V.
  • the lithium battery charging device continuously supplies the battery with 4.35V voltage, and the battery is charged to 4.35V, and the lithium battery charging device gives a 4.4V.
  • the small current signal the MCU detects that the voltage is 4.4V, and the lithium battery charging device stops feeding.
  • the lithium battery charging device gives a charging voltage of 8.5V to charge the battery.
  • the lithium battery charging device will give a small current signal of 8.7V. If the MCU detection voltage is 8.7V, it means the battery is 8.5V and is full, and the lithium battery charging device stops.
  • MCU detects that the voltage is 8.5V, it means that the battery is a high voltage battery of 8.7V, the lithium battery charging device continues to charge 8.7V to charge the battery, and the battery is charged to 8.7V, the lithium battery charging device is given The 8.8V small current signal, the MCU detects that the voltage is 8.8V, and the power box stops feeding.
  • the lithium battery charging device gives a small current signal of 8.8V, and the voltage detected by the MCU is 8.7V, indicating that the battery is three strings, lithium
  • the battery charging device gives a charging voltage of 12.75V to charge the battery.
  • the lithium battery charging device will give a small current signal of 13.05V. If the MCU detection voltage is 13.05V, it means the battery is 12.75V and is full.
  • the lithium battery charging device stops.
  • the MCU detects that the voltage is 12.75V, which means that the battery is a 13.05V high-voltage battery.
  • the lithium battery charging device continues to charge the battery with 13.05V, and the battery is charged to 13.05V, and the battery box is 13.1V.
  • the current signal, the MCU detected the voltage is 13.1V, and the lithium battery charging device stops feeding.
  • the lithium battery charging device gives a small current signal of 13.1V, and the MCU detects that the voltage is 13.05V, which means that the battery is four strings, lithium
  • the battery charging device gives a charging voltage of 17V to charge the battery.
  • the lithium battery charging device will give a small current signal of 17.4V. If the MCU detection voltage is 17.4V, it means the battery is 17V and is full.
  • the lithium battery charging device stops feeding.
  • the MCU detects that the voltage is 17V it means that the battery is a high voltage battery of 17.4V.
  • the lithium battery charging device continues to charge the battery with 17.4V voltage.
  • the lithium battery charging device is 17.5V.
  • Y Battery single-segment full voltage (4.25 or 4.35V).
  • the battery pack has 1 full battery charge: 4.25V, 4.35V,

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

一种多功能充电箱，包括上盖（2）、上壳（3）、下壳（5）、底座（6）以及提手（1），所述底座（6）上固定有连接着控制电路板（12）的电池组（14），所述上壳（3）上设置有控制开关（7）、LED指示灯（8）、输入接口（10）、输出接口（9、11）、LED照明灯（4）；所述输出接口（9、11）有多个，通过输出接口（9、11），充电箱可给电动工具充电，也可以给其他产品充电；所述LED照明灯（4），在光线不好时可辅助充电箱使用，也可单独当照明灯用，以及在紧急情况下发出SOS信号，该充电箱带有提手（1），方便携带和使用，可装在包中，可提在手中用，可挂起来用，放在台面上用，可挂在腰间和背在背上用等。该充电箱结构简单，设计巧妙，一箱多用，携带方便。

Description

一种多功能充电箱 技术领域
本实用新型涉及一种充电装置，更具体地说是涉及一种多功能充电箱。
背景技术
随着社会的发展，科技的不断进步，用电池的电动工具、无人机、手机等电子产品，因不受电源的限制，应用越来越广。但电动工具电池、无人机等都需要专用充电器才能充电，如果没带专用充电器，电池没电后，电动工具等就没法使用了，在光线不好的情况下，使用电动工具不太方便，其他人也可能没有发现使用者，造成安全隐患。另外，在没有外接电源的地方，一些电子产品没电也没法使用。现有的一些充电器的用途都比较单一，需要改善。
实用新型内容
本实用新型的目的是提供一种小巧的便携装置，既可以对各种电动工具长期进行充电，还可以对无人机、手机等电子产品进行充电，在光线不好的情况下还可以照明。
本实用新型为了解决现有技术中存在的问题，提供了一种多功能充电箱。
为了实现上述目的，本实用新型采用以下技术方案：
一种多功能充电箱，包括上盖、上壳、下壳及底座，还包括设置于下壳内部固定在底座上的电池组，电池组上设有电池保护板，控制电路板固定在电池保护板上，还包括设于上壳的控制开关、LED指示灯，还包括设置于上壳上对电动工具充电箱充电的输入接口、对电动工具充电的输出接口和对其它产品充电的输出接口，如智能识别手机、平板等电子设备，还包括设置于上壳上的LED照明灯以及固定在下壳上的提手。
电池组负责电的能量储存，就是电能通过电池储存，可以是镍氢、镍镉、锂电池、铅酸电池等可充电的电池所组成的电池组。
控制电路板控制整个充电箱的充电、放电、通讯、灯光、输入输出控制等功能，保证多功能充电箱的正常使用。
LED指示灯可表示当前的电池电量状态，还设有工作状态指示，可以提醒其他人，多功能充电箱现在正在使用，应小心避让。
LED照明灯在光线不好时可辅助多功能充电箱，供其工作时照明用，也可单独当照明灯用。
LED照明灯在紧急情况下可发出SOS紧急求救信号，具体操作如下，长按控制开关5秒，LED照明灯开始按照三短、三长、三短的模式闪烁(国际标准的SOS求救灯光信号)，从而发出SOS紧急求救信号。
输入、输出接口可以由一个或多个、一种或多种(如USB接口、DC、EC5接口等)组成。通过输入接口，其它电源可以给多功能充电箱 充电；通过输出接口，多功能充电箱可以给电动工具以及其他产品充电。
附图说明
图1示出了本实用新型充电箱一个实施例的结构示意图。
图2示出了图1的后视图。
图3示出了本实用新型充电箱的内部结构示意图。
图4示出了本实用新型充电箱的电气原理方框图。
图5示出了本实用新型的电池组充电状态检测的流程图。
图6示出了本实用新型的空载检测的流程图。
图7示出了本实用新型的4.25V，4.35V电芯时的充电电压初次识别的流程图。
图8示出了本实用新型充电箱另一个实施例的结构示意图。
图9示出了图8的后视图。
具体实施方式
为了使本实用新型解决的技术问题、采用的技术方案、取得的技术效果易于理解，下面结合具体的附图，对本实用新型的具体实施方式做进一步说明。
如图1-3所示，在一个具体的实施例中，多功能充电箱包括提手1、上盖2、上壳3、下壳5及底座6，还包括设置于下壳5内部固定在底座6上的电池组14，电池组14上设有电池保护板13，控制电路 板12固定在电池保护板13上，并与各个关联部件连接；所述上壳3上靠近提手1的一侧设置有控制开关7和LED指示灯8，所述上壳3上靠近提手1的另一侧设置有输入接口10和对电动工具充电的输出接口11；在所述上壳3上不带提手1的一侧设置有LED照明灯4，在其对应的另一侧设置有给其他产品充电的输出接口9。
如图8-9所示，在另一个具体的实施例中，此款多功能充电箱的输出接口11采用EC5接口，并设置有防尘盖12，最大可输出60V100A电流，通过EC5接口和连接线，可给各种动力工具和工具电池、无人机等供电。
此款充电箱采用锂电芯，多个锂电芯串并连接，可输出不同的电压和电流，以满足给不同的动力工具和工具电池供电；输入接口10，用DC电源充电；输出接口9可为一个USB接口和一个TYPE-C接口，也可以为两个USB接口和两个TYPE-C接口，或多个USB接口和多个TYPE-C接口，可同时为两个或多个智能手机、平板等电子设备供电。
LED指示灯8，可以分段显示电量，可实时了解剩余电量，还可指示工作状态，可以提醒其他人，多功能充电箱现在正在使用，应小心避让。
控制开关7为集成按键开关，负责电源的开关及LED灯的开关和模式的转换。
LED照明灯4，可用来照明、补光以及在紧急情况下发出SOS信号。
本多功能充电箱的电气原理方框图如图4所示，包括连接有主控 单元105的电池组及保护电路单元102和充电管理单元104，还包括分别与主控单元105连接的LED照明单元101、电量指示单元103、常规输出单元106、大功率输出单元108和输入单元107。所述主控单元105设置在控制电路板12上。
所述LED照明单元101设有1个或多个LED灯，在光线不好时可辅助多功能锂电池充电装置，供其工作时照明用，也可单独当照明灯用。
LED照明单元101在紧急情况下可发出SOS紧急求救信号，具体操作如下，长按控制开关5秒，LED照明灯开始按照三短、三长、三短的模式闪烁(国际标准的SOS求救灯光信号)，从而发出SOS紧急求救信号。
所述电池组及保护电路单元102中的电池组主要是储能，充电时把电能储存起来，工作时再把电能释放出去，电池组可以是镍氢，镍镉，锂电池等可充电电池组成；保护电路主要是保护电池的安全，防止过充过放损害电芯。
所述电量指示单元103，可表示当前的电池电量状态，可分段显示电量，可实时了解剩余电量。
所述充电管理单元104可以对外部输入电源进行充电管理，确保给电池组安全的充电。
所述主控单元控制105设有MCU和控制开关，所述主控单元控制整个充电装置的充电、放电、灯光、输入、输出等功能，保证充电装置的正常使用。
所述常规输出单元106设置有输出接口，所述输出接口可以由一个或多个、一种或多种(如USB接口、DC接口等)组成。通过输出接口，多功能锂电池充电装置可以给其他产品充电。
所述大功率输出单元108专为外接锂电池充电，可自动识别锂电池的电压，并正确的充电。所述锂电池输出单元设置有输出接口，所述输出接口可以由一个或多个、一种或多种(如USB接口、DC、EC5接口等)组成。通过输出接口，多功能锂电池充电装置可以给锂电池充电。通过输出接口，多功能无人机充电装置可以给无人机充电。
所述输入单元107设置有输入接口，连接外部输入的充电电源，所述输入接口可以由一个或多个、一种或多种(如USB接口、DC接口等)组成。通过输入接口，外部的电源可以给多功能锂电池充电装置充电；
本实用新型能给锂电池充电，能自动识别锂电池的串数并给正确的电压充电，保证电池的充电安全。
其工作原理是：本锂电池充电装置的锂电池输出单元7内串联有一个检测电阻，主控单元5的MCU可通过检测电阻上反馈过来的信号，来检测电压和电流，再确定要输出的充电电压。
把需充电的电池与锂电池充电装置用DC线连接起来，开机，常规输出单元6或锂电池输出单元7的输出接口输出一个20V的小电流脉冲信号到电池，MCU通过检测电阻上反馈过来的信号，来检测电压，再确定要输出的充电电压。
电芯充电的具体情况如下(以1-4串电芯为例)：
锂电池有保护电路，能保证电芯不被过充，单节的电芯充满的保护电压是4.25V或4.35V，两串的过冲保护电压是8.5V或8.7V，三串的保护电压是12.75V或13.05V，四串保护电压是17V或17.4V。
1.当单节电芯充电时，如果反馈电压为小于4.25V，则判定为单节电芯，锂电池机充电装置给出充电电压为4.25V，给电池充电。当电池电压充到4.25V后，锂电池充电装置会再给一个4.35V的小电流信号，如MCU检测电压是4.35V，则表示此电池是4.25V的，并已经充满，电箱停止给电；MCU检测到电压是4.25V，则表示此电池是4.35V的高压电芯，锂电池充电装置接续给4.35V电压给电池充电，等电池充到4.35V，锂电池充电装置给个4.4V小电流信号，MCU检测到电压是4.4V，锂电池充电装置停止给电。
2.当两串电芯充电时，如果反馈电压为大于4.35V小于8.5V，则判断此电池为两串电点芯，锂电池充电装置给出充电电压为8.5V，给电池充电。当电池电压充到8.5V后，锂电池充电装置会再给一个8.7V的小电流信号，如MCU检测电压是8.7V，则表示此电池是8.5V的，并已经充满，锂电池充电装置停止给电；MCU检测到电压是8.5V，则表示此电池是8.7V的高压电芯，锂电池充电装置接续给8.7V电压给电池充电，等电池充到8.7V，锂电池充电装置给个8.8V小电流信号，MCU检测到电压是8.8V，电箱停止给电。
3.当三串电芯充电时，在两串电芯充电的基础上，锂电池充电装置给个8.8V小电流信号，MCU检测到电压是8.7V，则表示此电池是三串的，锂电池充电装置给出充电电压为12.75V，给电池充电。当 电池电压充到12.75V后，锂电池充电装置会再给一个13.05V的小电流信号，如MCU检测电压是13.05V，则表示此电池是12.75V的，并已经充满，锂电池充电装置停止给电；MCU检测到电压是12.75V，则表示此电池是13.05V的高压电芯，锂电池充电装置接续给13.05V电压给电池充电，等电池充到13.05V，电箱给个13.1V小电流信号，MCU检测到电压是13.1V，锂电池充电装置停止给电。
4.当四串电芯充电时，在三串电芯充电的基础上，锂电池充电装置给个13.1V小电流信号，MCU检测到电压是13.05V，则表示此电池是四串的，锂电池充电装置给出充电电压为17V，给电池充电。当电池电压充到17V后，锂电池充电装置会再给一个17.4V的小电流信号，如MCU检测电压是17.4V，则表示此电池是17V的，并已经充满，锂电池充电装置停止给电；MCU检测到电压是17V，则表示此电池是17.4V的高压电芯，锂电池充电装置接续给17.4V电压给电池充电，等电池充到17.4V，锂电池充电装置给个17.5V小电流信号，MCU检测到电压是17.5V，锂电池充电装置停止给电。
其它串数的电芯充电时以此类推。
电池组充电时先区分多少节电芯，再区分是普通电芯(4.25V)，还是高压电芯(4.35V)，具体操作流程参考图5、6。
注：电池电压(DC充电)满电算法：X*Y
X：电池串联数量(节)，
Y：电池单节满电电压(4.25或4.35V)。
锂电池充电装置的充电电压初次识别的流程参考图7：
注：电池组1节电池满电充电：4.25V，4.35V，
电池组2节电池满电充电：8.5V，8.7V，
电池组3节电池满电充电：12.75，13.05V，
……(4.25＊nV，4.35＊nV)。
以上所述，仅为本实用新型较佳的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应该以权利要求的保护范围为准。

Claims (8)

  1. 一种多功能充电箱，包括上盖、上壳、下壳及底座，还包括设置于下壳内底部并固定在底座上的电池组及与其连接的控制电路板，还包括设置于上壳上的控制开关、LED指示灯以及对电动工具充电箱充电的输入接口，其特征在于：还包括设置于上壳上对电动工具充电和给其它产品充电的输出接口、LED照明灯以及提手。
  2. 根据权利要求1所述的多功能充电箱，其特征在于：所述输入接口采用DC输入，通过输入接口，其它电源可以给充电箱充电。
  3. 根据权利要求1所述的多功能充电箱，其特征在于：所述输出接口设置有多个，可设置为USB接口、TYPE-C、DC接口、EC5接口等；通过输出接口，充电箱可给电动工具充电，也可以给其它产品充电，如无人机、智能识别手机、平板等电子设备。
  4. 根据权利要求1所述的多功能充电箱，其特征在于：所述LED指示灯可表示当前的电池电量状态，可分段显示电量，可实时了解剩余电量，还可显示充电箱的工作状态。
  5. 根据权利要求1所述的多功能充电箱，其特征在于：所述控制开关为集成按键，控制开关负责电源的开关及LED灯的开关和模式的转换。
  6. 根据权利要求1所述的多功能充电箱，其特征在于：所述LED照明灯，在光线不好时可辅助充电箱使用，也可单独当照明灯用以及在紧急情况下发出SOS信号。
  7. 根据权利要求1所述的多功能充电箱，其特征在于：所述电池组由镍氢、镍镉、锂电池、铅酸电池等可充电电池组成。
  8. 根据权利要求1所述的多功能充电箱，其特征在于：所述控制电路板上设置有主控单元，所述主控单元能自动识别锂电池的串数并给正确的电压充电，保证电池的充电安全。
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