CN1877956A - 电池充电器 - Google Patents

电池充电器 Download PDF

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Publication number
CN1877956A
CN1877956A CNA2006100749006A CN200610074900A CN1877956A CN 1877956 A CN1877956 A CN 1877956A CN A2006100749006 A CNA2006100749006 A CN A2006100749006A CN 200610074900 A CN200610074900 A CN 200610074900A CN 1877956 A CN1877956 A CN 1877956A
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China
Prior art keywords
battery
charger
battery pack
supplies
current
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CNA2006100749006A
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CN1877956B (zh
Inventor
谢莱什·P·韦卡尔
巴纳普拉萨德·V·戈蒂
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Black and Decker Inc
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Black and Decker Inc
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage

Abstract

一种充电器，包括：可连接到外部电源的供电部件；连接到供电部件的第一和第二电池电源，用于向电池组供电；和连接到第一和第二电池电源的控制器，用于控制第一和第二电池电源。第一和第二电池电源最好与电池并联连接。

Description

电池无电器
技术领域
本发明一般涉及电池充电器，尤其涉及具有多个电流源的电池充电器。
背景技术
用于便携动力工具、户外工具和某些厨房和家庭用具的电池组可以包括可充电电池，如锂、镍镉、镍氢和铅-酸电池，从而可以对它们再充电而不是替换它们。因此实现了实质性的成本节约。
最好提供一种电池充电器，其将会快速充电电池组，同时使由充电过程而导致的对电池组的任何损害最小。
发明内容
采用一种改进的电池组充电器。该充电器包括：可连接到外部电源的供电部件；连接到供电部件的第一和第二电池电源，用于向电池组供电；和连接到第一和第二电池电源的控制器，用于控制第一和第二电池电源。第一和第二电池电源最好与电池并联连接。
本发明额外的特征和优点将从附图和下面的详细描述中变得清楚。
附图说明
附图图解了根据本发明原理的实际应用的本发明的优选实施例，附图中：
图1是根据本发明的电池组和充电器的第一实施例的方框图；
图2是根据本发明的电池组和充电器的第二实施例的示意图；
图3图解了根据本发明的充电器产生的输出电流曲线；和
图4是根据本发明的电池组和充电器的第三实施例的方框图。
具体实施方式
根据本发明的电池组和充电器的第一实施例如图1所示。在这样的图中，电池组10连接到充电器20。电池组10可以包括多个串联和/或并联连接的电池组电池11，它们决定了电池组10的电压和存储容量。
电池组10可以包括三个电池接点(battery contact)：第一电池接点12、第二电池接点13和第三电池接点14。电池接点12是电池组10的B+(正)端。电池接点14是B-或负/公共端。电池接点13是S或读出端。电池接点12和14接收从充电器20(如下面所讨论的，最好是从电流源22)发出的充电电流，用于充电电池组10。
如图1所示，电池组电池11连接在电池接点12和14之间。此外，最好在电池接点13和14之间连接温度感测器件15，如负温度系数(NTC)电阻或热敏电阻RT。温度感测器件最好紧密地接近所述电池11，以便监视电池温度。本领域技术人员将认识到，也可以使用诸如电容等其他组件或电路来提供表示电池温度的信号。
电池组10还可以包括现有技术中公知的标识符，使得充电器20可以识别电池组的类型和容量，并据此充电。
充电器20最好包括控制器21，其又包括正端(B+)16和负端(B-)17，它们分别通过电池接点12和14与电池组10耦合。正端还可以用作输入，最好是模拟/数字输入，以便控制器21检测电池组电压。
此外，控制器21可以包括通过第三电池接点13(S)耦合到温度感测器件15的另一输入TC，最好是模拟/数字输入。这允许控制器21监视电池温度。控制器21可以包括微处理器23，用于控制充电并监视操作。控制器还可以包括存储器21M，用于存储微处理器23执行的充电指令和/或存储关于充电过程的信息等。
控制器21可以控制至少两个向电池组10供电的充电电源。如图1所示，两个电流源22A、22B向电池组10提供电流。电流源22A、22B可以集成在控制器21中。最好，电流源22A、22B是自激振荡变换器电路。
充电器20及其内部元件(包括控制器21、微处理器23和电流源22A、22B)从供电部件24接收所需的电力，供电部件24可以连接到车辆电池、发电机或AC插座。供电部件24可以将从车辆电池、发电机或AC插座接收的电力转换成不同元件的要求所需的电力，如在本领域公知的。
最好电流源22A、22B与电池组10并联。图3分别图解了电流源22A、22B的输出电流IA、IB。由于优选的并联配置，送到电池组10的电流IT将是输出电流IA、IB的相加。本领域技术人员将认识到，这种配置以低成本提供具有较高输出电流能力的充电器。这种较高的输出电流考虑更快地对电池组充电。
本领域技术人员注意到，希望确保输出电流IA、IB不同步。这是因为，当电流相加时，得到的最大电流和最小电流之间的差(即，峰峰电流“纹波”R)小于如果电流IA、IB同步时的情况。希望具有较小的纹波，以便使由于充电过程而导致的对电池组10的任何损害最小。
本领域技术人员将认识到，可以使用本配置来提供快速充电电流和/或均衡电流给电池组10。
图2图解了根据本发明的电池充电器的第二实施例。前面实施例的教导通过引用在此全部并入。第一和第二实施例之间的主要区别是第二实施例不具有与电池组10的温度感测器件15的连接。欲进一步了解关于示意图中的每个部件的功能和相互作用的信息，本领域技术人员可查阅美国专利No.5,783,930，其通过引用在此全部并入。
图3图解了根据本发明的电池充电器的第三实施例，其中相同的部分用相同的附图标记表示。前面实施例的教导通过引用在此全部并入。第一和第三实施例之间的主要区别是第三实施例具有多于2个电流源(22A、22B)。确实，设计者可以提供所期望的那样多的电流源(22A、22B、...22N)。本领域技术人员将认识到，希望确保不同源的电流输出不同步，以便使纹波R最小。
本领域技术人员可以认识到对这里所公开的装置的其他替代。然而，所有这些添加和/或替代都应认为是本发明的等效。

Claims (10)

1.一种充电器，包括：
可连接到外部电源的供电部件；
连接到供电部件的第一和第二电池电源，用于向电池组供电；和
连接到第一和第二电池电源的控制器，用于控制第一和第二电池电源。
2.如权利要求1所述的充电器，其中第一和第二电池电源与电池并联连接。
3.如权利要求1所述的充电器，其中外部电源是由车辆电池、发电机和AC插座构成的组中的一个。
4.如权利要求1所述的充电器，其中第一和第二电池电源的电力输出不同步。
5.如权利要求1所述的充电器，其中第一和第二电池电源分别提供第一和第二可变电流输出。
6.如权利要求5所述的充电器，其中第一和第二可变电流输出不同步。
7.如权利要求1所述的充电器，其中控制器从电池组接收温度信号。
8.如权利要求1所述的充电器，还包括由控制器控制的第三电池电源，该第三电池电源连接到供电部件并且向电池组供电。
9.如权利要求8所述的充电器，其中第一、第二和第三电池电源分别提供第一、第二和第三可变电流输出。
10.如权利要求9所述的充电器，其中第一、第二和第三可变电流输出不同步。
CN2006100749006A 2005-04-29 2006-04-25 电池充电器 Expired - Fee Related CN1877956B (zh)

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EP (1) EP1717926A3 (zh)
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CN1877956B (zh) 2010-05-12
JP2006311798A (ja) 2006-11-09
US20060250112A1 (en) 2006-11-09
EP1717926A2 (en) 2006-11-02
US7570011B2 (en) 2009-08-04
EP1717926A3 (en) 2007-02-28

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