JPH08308119A - Battery charging system - Google Patents
Battery charging systemInfo
- Publication number
- JPH08308119A JPH08308119A JP7113162A JP11316295A JPH08308119A JP H08308119 A JPH08308119 A JP H08308119A JP 7113162 A JP7113162 A JP 7113162A JP 11316295 A JP11316295 A JP 11316295A JP H08308119 A JPH08308119 A JP H08308119A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electrode
- voltage
- charger
- rated voltage
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
-
- 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
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4221—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells with battery type recognition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電池の充電システムに
関し、特に容易に特定の定格電圧の電池を識別して充電
することができる電池の充電システムに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery charging system, and more particularly to a battery charging system which can easily identify and charge a battery having a specific rated voltage.
【０００２】[0002]
【従来の技術】例えば、電動工具に用いられる電池に
は、定格電圧が７．２Ｖ、９．６Ｖ、１２Ｖ、１４．４
Ｖ、２４Ｖのもの等があり、これらの電池の種類をとわ
ず同一の充電器で充電できることが望ましい。また、例
えば、いわゆる−ΔＶ方式で満充電タイミングを検出す
る様な場合，充電器にセットされ電池の定格電圧を識別
できることが望ましい。充電器にセットされる電池は放
電しており、セットされたときの電池電圧から定格電圧
を検出することは難しい。定格電圧が高い電池であるに
もかかわらず、放電が著しく進行して、定格電圧が低い
電池の電池電圧よりも低くなってしまうことがあるから
である。そこで、現在では、充電開始後所定時間が経過
したときの電池電圧を適切に選択すると、電池電圧が定
格電圧にみあったものとなり、そのときの電池電圧が高
いものほど定格電圧の高いという関係が得られる。2. Description of the Related Art For example, a battery used for an electric power tool has a rated voltage of 7.2V, 9.6V, 12V, 14.4.
There are V, 24V, etc., and it is desirable that they can be charged by the same charger regardless of the types of these batteries. Further, for example, in the case of detecting the full charge timing by the so-called -ΔV method, it is desirable to be able to identify the rated voltage of the battery set in the charger. The battery set in the charger is discharged and it is difficult to detect the rated voltage from the battery voltage when the battery is set. This is because, although the battery has a high rated voltage, the discharge may significantly progress and become lower than the battery voltage of the battery having a low rated voltage. Therefore, at present, if the battery voltage when a predetermined time has elapsed after the start of charging is properly selected, the battery voltage matches the rated voltage, and the higher the battery voltage at that time, the higher the rated voltage. Is obtained.
【０００３】[0003]
【発明が解決しようとする課題】ところが、電池の寿命
が末期に近づくと、しばしば電池セルがショートする。
例えば、通常２４Ｖの電池は１．２Ｖの電池セルが２０
個直列に接続されているが、その２０個のうち数個がシ
ョートすることがある。例えば、８個ショ−トすれば、
実質的な定格電圧は１４．４Ｖとなってしまう。この場
合、従来のものでは、電池セルがショートした定格２０
Ｖの電池がセットされているのか、正常な１４．４Ｖの
電池がセットされているのかが不明となり、異常電池に
対して誤った状況で充電完了処理をしてしまうことにな
る。そこで、本発明は、かかる誤検出を予防しようとす
るものである。However, when the life of the battery approaches the end, the battery cell often short-circuits.
For example, a typical 24V battery has 20 1.2V battery cells.
Although they are connected in series, some of them may be short-circuited. For example, if you take eight shorts,
The actual rated voltage becomes 14.4V. In this case, in the conventional case, the battery cell has a short-circuit rating of 20
It becomes unclear whether the V battery or the normal 14.4 V battery is set, and the charging completion process is performed on the abnormal battery in an incorrect situation. Therefore, the present invention is intended to prevent such false detection.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するた
め、本願の第１の発明の構成は、充電器の側には、電池
のプラス極に接触する充電用プラス極と、電池のマイナ
ス極に接触する充電用マイナス極の他に、電池の種別を
判別するための第１電極が付加されており、電池の側に
は、充電器にセットされたときに、充電用プラス極に接
触するプラス極と、充電用マイナス極に接触するマイナ
ス極が設けられている他、特定種類の電池にのみ前記第
１電極に接触する第２電極が付加されていることを特徴
とする電池の充電システムである。更に、第２の発明の
構成は、上記第１の発明の構成において、前記第２電極
はマイナス極に接続されており、前記第１電極には基準
電圧が印加されており、電池を充電器にセットしたとき
の第１電極の電圧によって該セットされた電池の種類が
判別されることである。In order to solve the above-mentioned problems, the structure of the first invention of the present application is such that a charging positive electrode in contact with the positive electrode of the battery and a negative electrode of the battery are provided on the side of the charger. In addition to the negative electrode for charging, which contacts the battery, a first electrode for distinguishing the type of battery is added, and the battery is in contact with the positive electrode for charging when set in the charger. A battery charging system characterized in that a positive electrode and a negative electrode for contacting a negative electrode for charging are provided, and a second electrode for contacting the first electrode is added only to a specific type of battery. Is. Further, the structure of the second invention is the structure of the first invention, wherein the second electrode is connected to a negative electrode, a reference voltage is applied to the first electrode, and the battery is charged by a charger. That is, the type of the set battery is determined by the voltage of the first electrode when set to.
【０００５】[0005]
【作用】上記第１の発明の構成では、特定の定格電圧の
電池を充電器で充電する場合にのみ、充電器側の第１電
極と電池側の第２電極とが接触し、その接触状態により
前記特定の定格電圧の電池が充電されているのか、それ
以外の電池が充電されているのか識別される。このた
め、前記特定の定格電圧の電池を確実に識別して適正な
電圧に充電することができる。更に、第２の発明の構成
によれば、上記第１の発明の構成による作用とともに、
前記充電器側の第１電極と前記電池側の第２電極が接触
したときに、前記第１電極の電圧が変化し、この電圧の
変化が検出されるので、特定の定格電圧の電池の識別が
容易になる。In the structure of the first aspect of the invention, the first electrode on the charger side contacts the second electrode on the battery side only when the battery having the specific rated voltage is charged by the charger, and the contact state Is used to identify whether the battery having the specific rated voltage is charged or the other batteries are charged. Therefore, the battery having the specific rated voltage can be reliably identified and charged to an appropriate voltage. Further, according to the configuration of the second invention, in addition to the operation of the configuration of the first invention,
When the first electrode on the charger side and the second electrode on the battery side contact each other, the voltage of the first electrode changes and this change in voltage is detected, so that the battery having a specific rated voltage is identified. Will be easier.
【０００６】[0006]
【実施例】次に、本願発明の実施例を図面を使用して説
明する。図１は本願発明の一実施例の回路を示し、図２
はこの実施例の電池の電極配置を示し、図３はこの実施
例の充電器及び電池の実際の電極配置を示す。図１、図
２及び図３において、充電器１０は、充電用プラス電極
１１、充電用マイナス電極１２、２４Ｖ電池識別用第１
電極１３、温度検知電極１４、第１ダイオード１５、第
２ダイオード１６、第１抵抗１７、第２抵抗１８及びマ
イコン１９からなる。充電器１０の内部には、図示しな
い交流→直流変換回路と充電電流調整回路が内蔵されて
おり、充電電圧と基準電圧が得られる。充電用プラス電
極１１と充電用マイナス電極１２との間には、前記充電
電圧が印加され、マイコン１９には前記基準電圧が印加
される。更に、後述するように抵抗１７、１８の一端に
も基準電圧（５Ｖ）が印加される。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a circuit of an embodiment of the present invention.
Shows the electrode arrangement of the battery of this example, and FIG. 3 shows the actual electrode arrangement of the charger and battery of this example. 1, FIG. 2 and FIG. 3, the charger 10 includes a charging positive electrode 11, a charging negative electrode 12, and a first 24V battery identifying device.
The electrode 13, the temperature detection electrode 14, the first diode 15, the second diode 16, the first resistor 17, the second resistor 18, and the microcomputer 19. Inside the charger 10, an AC → DC converter circuit and a charging current adjusting circuit (not shown) are built in, and a charging voltage and a reference voltage are obtained. The charging voltage is applied between the charging plus electrode 11 and the charging minus electrode 12, and the reference voltage is applied to the microcomputer 19. Further, as will be described later, the reference voltage (5V) is also applied to one ends of the resistors 17 and 18.
【０００７】２４Ｖ電池識別用第１電極１３は、第１ダ
イオード１５のカソードに接続され、第１ダイオード１
５のアノードはマイコン１９の第１入力端子１９ａに接
続されている。温度検知電極１４は第２ダイオード１６
のカソードに接続され、第２ダイオード１６のアノード
はマイコン１９の第２入力端子１９ｂに接続されてい
る。第１ダイオード１５のアノードと５Ｖ電源１９ｃ
（充電用マイナス電極１２を基準として５Ｖの電圧を出
力する）との間に第１抵抗１７が接続され、更に、第２
ダイオード１６のアノードと前記５Ｖ電源１９ｃとの間
に第２抵抗１８が接続されている。The first electrode 13 for identifying the 24V battery is connected to the cathode of the first diode 15, and the first diode 1
The anode of 5 is connected to the first input terminal 19a of the microcomputer 19. The temperature detection electrode 14 is the second diode 16
Of the second diode 16 is connected to the second input terminal 19b of the microcomputer 19. Anode of first diode 15 and 5V power supply 19c
The first resistor 17 is connected between (the output of a voltage of 5 V with reference to the negative electrode 12 for charging), and the second resistor
The second resistor 18 is connected between the anode of the diode 16 and the 5V power supply 19c.
【０００８】図３に示すように、上記各電極１１〜１４
は、板ばね状のものであり、充電器１０に電池２０（又
は３０）をセットしたときに、電池側の電極２１〜２４
（又は３１〜３４）に接触するように充電器１０の電池
差し込み用穴１０ａ内に形成されている。また、充電器
１０の各電極１１〜１４と電池２０の各電極２１〜２４
との極性を一致させるため、前記電池差し込み用穴１０
ａの側壁１０ｂに凹部１０ｃが形成され、電池２０の側
面２０ａに前記凹部１０ｃに嵌合する突起部２０ｂが形
成されている。なお、図２（ｂ）に示す突起部３０ｂ
は、上記突起部２０ｂと同様のものである。As shown in FIG. 3, each of the electrodes 11 to 14 is
Is a leaf spring shape, and when the battery 20 (or 30) is set in the charger 10, the electrodes 21 to 24 on the battery side are
(Or 31 to 34) are formed in the battery insertion hole 10a of the charger 10. Also, the electrodes 11 to 14 of the charger 10 and the electrodes 21 to 24 of the battery 20.
In order to match the polarity with
A concave portion 10c is formed on the side wall 10b of a, and a projection portion 20b that fits into the concave portion 10c is formed on the side surface 20a of the battery 20. The protrusion 30b shown in FIG.
Is similar to the protrusion 20b.
【０００９】図１及び図２（ａ）に示すように、定格電
圧２４Ｖの電池２０は、プラス電極２１、マイナス電極
２２、２４Ｖ電池識別電極２３、温度検知電極２４、サ
ーモスタット２５及び直列接続された充放電可能な電池
セル群２６からなる。プラス電極２１は、電池セル群２
６のプラス側に接続され、充電時に充電器１０の充電用
プラス電極１１に接続される。マイナス電極２２は、電
池セル群２６のマイナス側に接続され、充電時に充電器
１０の充電用マイナス電極１２に接続される。２４Ｖ電
池識別用第２電極２３はマイナス電極２２に接続され、
充電時に充電器１０の２４Ｖ識別用第１電極１３に接続
される。サーモスタット２５は、温度検知電極２４と電
池セル群２６のマイナス極との間に接続され、温度検知
電極２４は充電時に充電器１０の温度検知電極１４に接
続される。サーモスタット２５は、電池セル群２６に隣
接して配置され、電池セル群２６の温度変化に追従して
温度変化する。As shown in FIGS. 1 and 2A, a battery 20 having a rated voltage of 24 V is connected in series with a plus electrode 21, a minus electrode 22, a 24 V battery identification electrode 23, a temperature detecting electrode 24, a thermostat 25. The battery cell group 26 is chargeable and dischargeable. The positive electrode 21 is the battery cell group 2
6 is connected to the positive side and is connected to the positive charging electrode 11 of the charger 10 during charging. The negative electrode 22 is connected to the negative side of the battery cell group 26, and is connected to the charging negative electrode 12 of the charger 10 during charging. The second electrode 23 for identifying the 24V battery is connected to the negative electrode 22,
At the time of charging, it is connected to the 24V identification first electrode 13 of the charger 10. The thermostat 25 is connected between the temperature detection electrode 24 and the negative electrode of the battery cell group 26, and the temperature detection electrode 24 is connected to the temperature detection electrode 14 of the charger 10 during charging. The thermostat 25 is disposed adjacent to the battery cell group 26 and changes in temperature following the temperature change in the battery cell group 26.
【００１０】図１及び図２（ｂ）に示すように、定格電
圧７．２〜１４．４Ｖの電池３０は、プラス電極３１、
マイナス電極３２、温度検知電極３４、サーモスタット
３５及び直列接続された充放電可能な電池セル群３６か
らなる。しかし、電池識別用の第２電極は電池３０に設
けられていない。プラス電極３１は、電池セル群３６の
プラス側に接続され、充電時には充電器１０の充電用プ
ラス電極１１に接続される。一方、マイナス電極３２
は、電池セル群３６のマイナス側に接続され、充電時に
は充電器１０の充電用マイナス電極１２に接続される。
サーモスタット３５は温度検知電極３４と電池セル群３
６のマイナス極との間に接続され、温度検知電極３４は
充電時に充電器１０の温度検知電極１４に接続される。As shown in FIGS. 1 and 2 (b), a battery 30 having a rated voltage of 7.2 to 14.4 V has a positive electrode 31,
The negative electrode 32, the temperature detection electrode 34, a thermostat 35, and a battery cell group 36 that can be charged and discharged and are connected in series. However, the second electrode for battery identification is not provided in the battery 30. The plus electrode 31 is connected to the plus side of the battery cell group 36, and is connected to the charging plus electrode 11 of the charger 10 during charging. On the other hand, the negative electrode 32
Is connected to the negative side of the battery cell group 36, and is connected to the negative charging electrode 12 of the charger 10 during charging.
The thermostat 35 includes the temperature detection electrode 34 and the battery cell group 3
The temperature detecting electrode 34 is connected between the negative electrode 6 and the temperature detecting electrode 14 of the charger 10 during charging.
【００１１】電池セル群２６（又は３６）が所定の温度
まで上昇したときに、サーモスタット２５（又は３５）
がオフになるので、マイコン１９の第２入力端子１９ｂ
の電圧が０．７Ｖ（Ｌレベル）から５Ｖ（Ｈレベル）に
変わる。なお、ここでサーモスタット２５（又は３５）
のオン時の第２入力端子１９ｂの電圧が０．７Ｖとなる
のは、ダイオード１６のアノード・カソード間の電圧降
下による。このとき、電池２０（又は３０）を保護する
ために、マイコン１９により充電器１０が制御されて、
上記充電電圧が電池２０（又は３０）に印加されなくな
るので、電池セル群２６（又は３６）の温度が過度に上
昇することを防ぐことができる。When the battery cell group 26 (or 36) rises to a predetermined temperature, the thermostat 25 (or 35)
Is turned off, the second input terminal 19b of the microcomputer 19
Changes from 0.7V (L level) to 5V (H level). In addition, here, the thermostat 25 (or 35)
The reason why the voltage of the second input terminal 19b becomes 0.7 V when ON is due to the voltage drop between the anode and the cathode of the diode 16. At this time, the charger 10 is controlled by the microcomputer 19 in order to protect the battery 20 (or 30),
Since the charging voltage is not applied to the battery 20 (or 30), the temperature of the battery cell group 26 (or 36) can be prevented from rising excessively.
【００１２】以上の構成により、定格電圧２４Ｖの電池
２０を充電するときは、次のようになる。先ず、定格電
圧２４Ｖの電池２０の各電極２１、２２、２３、２４を
充電器１０の各対応する電極１１、１２、１３、１４に
接続する（図３参照）。次に、マイコン１９がその第１
入力端子１９ａの電圧の変化を検出する。このとき電池
２０の定格電圧が２４Ｖなので、５Ｖ電源が、第１抵抗
１７、第１ダイオード１５、充電器１０の２４Ｖ電池識
別用第１電極１３、定格電圧２４Ｖの電池２０の２４Ｖ
電池識別用第２電極２３を介してマイナス電極２２に接
続されるために、第１電極１３の電圧は０Ｖ（Ｌレベ
ル）となる。With the above configuration, when the battery 20 having the rated voltage of 24V is charged, the operation is as follows. First, each electrode 21, 22, 23, 24 of the battery 20 having a rated voltage of 24V is connected to each corresponding electrode 11, 12, 13, 14 of the charger 10 (see FIG. 3). Next, the microcomputer 19 is the first
The change in the voltage of the input terminal 19a is detected. At this time, since the rated voltage of the battery 20 is 24V, the 5V power source is the first resistor 17, the first diode 15, the 24V battery identifying first electrode 13 of the charger 10, the 24V of the battery 20 having the rated voltage of 24V.
The voltage of the first electrode 13 is 0 V (L level) because it is connected to the minus electrode 22 via the battery identifying second electrode 23.
【００１３】このため、第１ダイオード１５が導通し、
第１入力端子１９ａの電圧は約０．７Ｖ（Ｌレベル）と
なるため、第１電極１３と第２電極２３との接続を確認
することができる。これにより、充電器１０に接続され
た電池２０が放電していても、電池２０が定格電圧２４
Ｖのものであることを確認することができる。なお、上
記第１電極１３と第２電極２３とが接続されないとき
は、上記第１電極１３の電圧は５Ｖ（Ｈレベル）とな
り、第１入力端子１９ａの電圧は５Ｖ（Ｈレベル）とな
る。Therefore, the first diode 15 becomes conductive,
Since the voltage of the first input terminal 19a is about 0.7 V (L level), the connection between the first electrode 13 and the second electrode 23 can be confirmed. As a result, even if the battery 20 connected to the charger 10 is discharged,
It can be confirmed that it is V. When the first electrode 13 and the second electrode 23 are not connected, the voltage of the first electrode 13 becomes 5V (H level) and the voltage of the first input terminal 19a becomes 5V (H level).
【００１４】次に、プラス電極１１、２１とマイナス電
極１２、２２との間にマイコン１９で制御された前記充
電電流調整回路により充電電流を流し、電池セル群２６
を充電する。このようにすることにより、電池２０が定
格電圧２４Ｖのものであることを確認した後、電池２０
を充電器１０により充電することができるので、電池２
０を適正な電圧に充電することができる。このとき、電
池セル群２６のうち幾つかの電池セルがショートして、
電池２０の電圧が１４．４Ｖであっても、電池２０の定
格電圧が２０Ｖであることが分かっているから、電池２
０の異常状態が分かる。Next, a charging current is made to flow between the positive electrodes 11 and 21 and the negative electrodes 12 and 22 by the charging current adjusting circuit controlled by the microcomputer 19, and the battery cell group 26
To charge. By doing so, after confirming that the battery 20 has a rated voltage of 24 V, the battery 20
Since the battery can be charged by the charger 10, the battery 2
0 can be charged to an appropriate voltage. At this time, some of the battery cells in the battery cell group 26 are short-circuited,
It is known that the rated voltage of the battery 20 is 20V even if the voltage of the battery 20 is 14.4V.
The abnormal state of 0 is known.
【００１５】次に、２４Ｖ以外の７．２〜１４．４Ｖの
定格電圧の電池３０が充電器１０に接続された場合は、
次のようになる。この場合、電池２０の２４Ｖ電池識別
第２電極２３に相当するものが、電池３０にないので、
充電器１０の第１ダイオード１５が導通せず、マイコン
１９の第１入力端子１９ａの電圧は５Ｖ（Ｈレベル）と
なるため、電池３０の定格電圧が２４Ｖでないことを確
認できる。その後、通常の方法により各定格電圧に応じ
た充電電流をプラス電極１１、３１とマイナス電極１
２、３２との間に印加することにより電池本体３６を充
電することができる。Next, when a battery 30 having a rated voltage of 7.2 to 14.4 V other than 24 V is connected to the charger 10,
It looks like this: In this case, since the battery 30 does not have the 24V battery identification second electrode 23 of the battery 20,
Since the first diode 15 of the charger 10 does not conduct and the voltage of the first input terminal 19a of the microcomputer 19 becomes 5V (H level), it can be confirmed that the rated voltage of the battery 30 is not 24V. After that, a charging current corresponding to each rated voltage is applied to the plus electrodes 11 and 31 and the minus electrode 1 by an ordinary method.
The battery main body 36 can be charged by applying the voltage between 2 and 32.
【００１６】なお、上記実施例において、電池の特定の
定格電圧は、２４Ｖであるが、これに限定されず、電池
の特定の定格電圧は、上記２４Ｖを含む任意の電圧でも
よい。また、上記実施例において、２４Ｖ電池識別用第
１電極１３と２４Ｖ電池識別用第２電極２３との接触状
態検出は、２４Ｖ電池識別用第１電極１３の電圧の変化
を検出することによるが、これに限定されず、２４Ｖ電
池識別用第１電極１３と２４Ｖ電池識別用第２電極２３
との接触により両電極１３、２３に流れる電流の変化を
検出する方法等でもよい。In the above embodiment, the specific rated voltage of the battery is 24V, but the present invention is not limited to this, and the specific rated voltage of the battery may be any voltage including the above 24V. Further, in the above embodiment, the contact state detection between the 24V battery identifying first electrode 13 and the 24V battery identifying second electrode 23 is performed by detecting the change in the voltage of the 24V battery identifying first electrode 13, The present invention is not limited to this, and the 24V battery identifying first electrode 13 and the 24V battery identifying second electrode 23 are not limited thereto.
A method of detecting a change in the current flowing through both electrodes 13 and 23 by contact with the electrode may be used.
【００１７】[0017]
【発明の効果】第１の発明に係わる電池の充電システム
により、電池が放電していても確実に特定の定格電圧の
ものであることを確認した後に、その電池を充電するこ
とができる。このため、特定の定格電圧の電池を適正な
充電電圧に充電することができるので、充電時に特定の
定格電圧の電池を不良にすることがない。更に、第２の
発明に係わる電池の充電システムによれば、上記第１の
発明に係わる効果とともに、電池の定格電圧が特定の定
格電圧であることの確認が容易になるので、充電作業全
体が容易になる。With the battery charging system according to the first aspect of the present invention, it is possible to charge the battery after confirming that the battery has a specific rated voltage without fail even if the battery is discharged. Therefore, the battery having the specific rated voltage can be charged to an appropriate charging voltage, so that the battery having the specific rated voltage is not defective during charging. Further, according to the battery charging system of the second invention, it is easy to confirm that the rated voltage of the battery is a specific rated voltage, in addition to the effects of the first invention. It will be easier.
【図１】本願発明の一実施例の回路図である。FIG. 1 is a circuit diagram of an embodiment of the present invention.
【図２】前記一実施例の電池の電極配置の説明図であ
る。FIG. 2 is an explanatory diagram of electrode arrangement of the battery of the one embodiment.
【図３】前記一実施例の充電器及び電池の実際の電極配
置の説明図である。FIG. 3 is an explanatory diagram of an actual electrode arrangement of the charger and the battery of the one embodiment.
１０ 充電器 １１ 充電器の充電用プラス電極 １２ 充電器の充電用マイナス電極 １３ 充電器の２４Ｖ電池識別用第１電極 １５ 第１ダイオード １７ 第１抵抗 １９ マイコン １９ａ マイコンの第１入力端子 ２０ 定格電圧２４Ｖの電池 ２１ 定格電圧２４Ｖの電池のプラス電極 ２２ 定格電圧２４Ｖの電池のマイナス電極 ２３ 定格電圧２４Ｖの電池の２４Ｖ電池識別用第２電
極10 Charger 11 Charger's Positive Electrode 12 Charger's Minus Electrode 13 Charger's 24V Battery Identification First Electrode 15 First Diode 17 First Resistor 19 Microcomputer 19a Microcomputer's First Input Terminal 20 Rated Voltage 24V battery 21 positive electrode of rated voltage 24V battery 22 negative electrode of rated voltage 24V battery 23 24V battery of rated voltage 24V second electrode for battery identification
Claims (2)
する充電用プラス極と、電池のマイナス極に接触する充
電用マイナス極の他に、電池の種別を判別するための第
１電極が付加されており、 電池の側には、充電器にセットされたときに、充電用プ
ラス極に接触するプラス極と、充電用マイナス極に接触
するマイナス極が設けられている他、特定種類の電池に
のみ前記第１電極に接触する第２電極が付加されている
ことを特徴とする電池の充電システム。1. A charger for determining the type of a battery, in addition to a charging positive electrode that contacts a positive electrode of the battery and a negative electrode for charging that contacts a negative electrode of the battery. An electrode is added, and a positive electrode that contacts the positive electrode for charging and a negative electrode that contacts the negative electrode for charging when set in the charger are provided on the battery side. A battery charging system, wherein a second electrode that comes into contact with the first electrode is added only to a type of battery.
おり、前記第１電極には基準電圧が印加されており、電
池を充電器にセットしたときの第１電極の電圧によって
該セットされた電池の種類が判別されることを特徴とす
る請求項１に記載の電池の充電システム。2. The second electrode is connected to a negative electrode, a reference voltage is applied to the first electrode, and the voltage is set by the voltage of the first electrode when the battery is set in a charger. The battery charging system according to claim 1, wherein the battery type is determined.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7113162A JPH08308119A (en) | 1995-05-11 | 1995-05-11 | Battery charging system |
| DE19617805A DE19617805A1 (en) | 1995-05-11 | 1996-05-03 | Battery charging system e.g. for motor powered work tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7113162A JPH08308119A (en) | 1995-05-11 | 1995-05-11 | Battery charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08308119A true JPH08308119A (en) | 1996-11-22 |
Family
ID=14605128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7113162A Pending JPH08308119A (en) | 1995-05-11 | 1995-05-11 | Battery charging system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH08308119A (en) |
| DE (1) | DE19617805A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462261A (en) * | 2017-09-06 | 2019-03-12 | 三星电子株式会社 | The electronic device to be charged using exposed terminal to battery |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7176654B2 (en) | 2002-11-22 | 2007-02-13 | Milwaukee Electric Tool Corporation | Method and system of charging multi-cell lithium-based batteries |
| US7714538B2 (en) | 2002-11-22 | 2010-05-11 | Milwaukee Electric Tool Corporation | Battery pack |
| US7253585B2 (en) | 2002-11-22 | 2007-08-07 | Milwaukee Electric Tool Corporation | Battery pack |
| US7589500B2 (en) | 2002-11-22 | 2009-09-15 | Milwaukee Electric Tool Corporation | Method and system for battery protection |
| US7425816B2 (en) | 2002-11-22 | 2008-09-16 | Milwaukee Electric Tool Corporation | Method and system for pulse charging of a lithium-based battery |
| US7157882B2 (en) | 2002-11-22 | 2007-01-02 | Milwaukee Electric Tool Corporation | Method and system for battery protection employing a selectively-actuated switch |
| DE10354874B4 (en) * | 2002-11-22 | 2024-01-25 | Milwaukee Electric Tool Corp. | Battery charger |
| US8471532B2 (en) | 2002-11-22 | 2013-06-25 | Milwaukee Electric Tool Corporation | Battery pack |
| USD558670S1 (en) | 2006-01-09 | 2008-01-01 | Milwaukee Electric Tool Corporation | Battery |
| USD899355S1 (en) | 2016-08-15 | 2020-10-20 | Milwaukee Electric Tool Corporation | Battery |
| DK3526827T3 (en) | 2016-10-14 | 2022-09-19 | Milwaukee Electric Tool Corp | BATTERY UNIT |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164652A (en) * | 1989-04-21 | 1992-11-17 | Motorola, Inc. | Method and apparatus for determining battery type and modifying operating characteristics |
| WO1992011680A1 (en) * | 1990-12-17 | 1992-07-09 | Motorola, Inc. | Battery characteristic detection scheme and apparatus |
-
1995
- 1995-05-11 JP JP7113162A patent/JPH08308119A/en active Pending
-
1996
- 1996-05-03 DE DE19617805A patent/DE19617805A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462261A (en) * | 2017-09-06 | 2019-03-12 | 三星电子株式会社 | The electronic device to be charged using exposed terminal to battery |
| CN109462261B (en) * | 2017-09-06 | 2023-10-20 | 三星电子株式会社 | Electronic device for charging battery using exposed terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19617805A1 (en) | 1996-11-14 |
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