JP3173288B2 - Charging device - Google Patents
Charging deviceInfo
- Publication number
- JP3173288B2 JP3173288B2 JP15352994A JP15352994A JP3173288B2 JP 3173288 B2 JP3173288 B2 JP 3173288B2 JP 15352994 A JP15352994 A JP 15352994A JP 15352994 A JP15352994 A JP 15352994A JP 3173288 B2 JP3173288 B2 JP 3173288B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- battery voltage
- timer
- timer value
- signal
- 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.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、二次電池の充電に用い
られる充電装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging device used for charging a secondary battery.
【０００２】[0002]
【従来の技術】ニッケルカドミウム電池等の二次電池の
充電完了を検出する方法として、充電中の電池電圧がピ
ーク値より規定値降下したことを検出する−△Ｖ検出が
一般的に使用されている。2. Description of the Related Art As a method of detecting the completion of charging of a secondary battery such as a nickel cadmium battery, -ΔV detection for detecting that a battery voltage during charging has fallen a specified value from a peak value is generally used. I have.
【０００３】以下に従来の充電装置について図面を用い
て説明する。図１８は従来の充電装置の構成を示す図で
ある。図１８で１は二次電池、２は電池電圧検出手段
で、電池電圧を検出し、その電池電圧に比例した信号を
出力する。３は、マイコンで、充電開始時に規定時間タ
イマをカウントし、タイマのオーバーフロー後信号を出
力するタイマ手段３１と、タイマ手段３１からの信号を
入力後電池電圧変化の検出を開始し、充電中の電池電圧
がピーク値より規定値降下したことを検出し、信号を出
力する充電完了検出手段３２とで構成されている。４
は、電流制御手段で、充電完了検出手段からの信号を入
力し充電電流を制御する。５は、充電電源である。Hereinafter, a conventional charging device will be described with reference to the drawings. FIG. 18 is a diagram showing a configuration of a conventional charging device. In FIG. 18, 1 is a secondary battery, 2 is a battery voltage detecting means, which detects a battery voltage and outputs a signal proportional to the battery voltage. Reference numeral 3 denotes a microcomputer, which counts a timer for a specified time at the start of charging, outputs a signal after the timer overflows, and detects a change in battery voltage after inputting a signal from the timer means 31 to start detecting a battery voltage change. It comprises a charge completion detecting means 32 for detecting that the battery voltage has dropped by a specified value from the peak value and outputting a signal. 4
Is a current control means for controlling a charging current by inputting a signal from the charging completion detecting means. Reference numeral 5 denotes a charging power supply.
【０００４】以上のように構成された充電装置につい
て、以下その動作を説明する。まず、二次電池１の充電
開始時にタイマ手段３１によりある規定時間タイマをカ
ウントし、このタイマのカウント中には過放電電池を充
電した場合等にの充電初期段階の−△Ｖを検出しないよ
うにする。そしてタイマのオーバーフロー後タイマ手段
３１より信号が出力され、この信号を入力後、充電完了
検出手段３２は、電池電圧検出手段２の出力による−△
Ｖの検出を開始し、−△Ｖの検出後、信号を出力する。
充電完了検出手段３２からの信号を入力とし、電流制御
手段４は電源５からの充電を停止する。図１９は、過放
電電池を定電流で充電した場合の充電電圧特性を示す図
で、過放電電池を充電した場合には、充電初期段階に電
池電圧がピーク値より規定値降下する特性を有している
ため、充電開始後規定時間−△Ｖの検出をしないように
し、充電不足にならないようにすることを示している。[0004] The operation of the charging device configured as described above will be described below. First, when charging of the secondary battery 1 is started, the timer means 31 counts a predetermined time timer, and during the counting of this timer,-△ V in the initial stage of charging such as when the overdischarged battery is charged is not detected. To Then, after the timer overflows, a signal is output from the timer means 31, and after inputting this signal, the charge completion detecting means 32 outputs − △ based on the output of the battery voltage detecting means 2.
The detection of V is started, and after the detection of-△ V, a signal is output.
The signal from the charge completion detecting means 32 is input, and the current control means 4 stops charging from the power supply 5. FIG. 19 is a diagram showing charging voltage characteristics when the overdischarged battery is charged with a constant current. When the overdischarged battery is charged, there is a characteristic in which the battery voltage drops a specified value from a peak value at the initial stage of charging. Therefore, it is indicated that the detection of the specified time −ΔV after the start of charging is not performed, and the shortage of the charging is prevented.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記従
来の構成では、−△Ｖの検出をしない区間のタイマ値設
定を、過放電電池や満充電電池等の電池の状態によら
ず、充電開始後ある規定時間としているため、タイマ値
が短い場合に過放電電池を充電した時、充電初期に−△
Ｖの検出をし、充電を停止して、充電不足となったり、
タイマ値が長い場合に満充電電池を再充電した時、タイ
マ期間に−△Ｖの検出をしないことによって過充電とな
り、電池の劣化を招くおそれがあった。図２０は、タイ
マ値が短い場合に過放電電池を充電した時の充電電圧特
性を示す図であり、図２１は、タイマ値が長い場合に満
充電電池を再充電した時の充電電圧特性を示す図であ
る。However, in the above-described conventional configuration, the setting of the timer value in the section in which-△ V is not detected is determined after the start of charging regardless of the state of the battery such as an overdischarged battery or a fully charged battery. When the overdischarged battery is charged when the timer value is short,-△
V is detected, charging is stopped, charging becomes insufficient,
When the fully charged battery is recharged when the timer value is long, overcharging may be caused by not detecting -ΔV during the timer period, which may lead to deterioration of the battery. FIG. 20 is a diagram showing a charging voltage characteristic when the overdischarged battery is charged when the timer value is short, and FIG. 21 is a diagram showing a charging voltage characteristic when the fully charged battery is recharged when the timer value is long. FIG.
【０００６】また、低温時の充電において過放電電池で
ない通常の電池状態であっても、過放電電池の充電特性
と似たような充電初期段階に電池電圧が降下する特性を
有しているため、タイマ値が短い場合に低温時に充電し
た時、充電初期に−△Ｖの検出をし、充電を停止して、
充電不足となるおそれがあった。図２２は、低温時に充
電した場合の充電電圧特性を示す図であり、低温充電時
では、過放電電池でない通常の電池状態でも充電初期段
階に電池電圧が降下する特性を有していることを示して
いる。Further, even when the battery is in a normal battery state that is not an overdischarged battery during low temperature charging, the battery has a characteristic that the battery voltage drops at an initial stage of charging similar to the charging characteristics of the overdischarged battery. When charging is performed at a low temperature when the timer value is short,-△ V is detected at the beginning of charging, charging is stopped,
There was a risk of insufficient charging. FIG. 22 is a diagram showing charging voltage characteristics when charging at a low temperature, and shows that the battery has a characteristic that the battery voltage drops at the initial stage of charging even at a normal battery state that is not an overdischarged battery at the time of low temperature charging. Is shown.
【０００７】そこで本発明は上記問題点を解決するもの
で、過放電電池の充電不足のない確実な充電を行い、ま
た満充電電池の再充電時の過充電を防止する充電装置や
低温充電時の充電不足のない確実な充電を行う充電装置
を提供することを目的とする。Accordingly, the present invention solves the above-mentioned problems, and provides a charging device for performing reliable charging without insufficient charging of an overdischarged battery, preventing overcharging when recharging a fully charged battery, and a charging device for low temperature charging. It is an object of the present invention to provide a charging device that performs reliable charging without insufficient charging of the battery.
【０００８】[0008]
【発明が解決するための手段】上記目的を達成するため
に、本発明の充電装置は、充電開始時点の電池電圧を検
出し、この電池電圧に比例した信号を出力する電池電圧
検出手段と、前記電池電圧検出手段から出力される信号
を入力として電池電圧に応じてタイマ値を設定するタイ
マ値設定手段と、前記タイマ値設定手段により設定され
たタイマ値をカウントし、タイマのオーバーフローによ
り信号を出力するタイマ手段と、前記タイマ手段からの
信号を入力後、電池電圧変化の検出を開始し、充電中の
電池電圧がピーク値より規定値降下したことを検出して
信号を出力する充電完了検出手段と、前記充電完了検出
手段の信号を入力として充電電流を制御する電流制御手
段とを備えた構成を有している。In order to achieve the above object, a charging apparatus of the present invention detects a battery voltage at the start of charging and outputs a signal proportional to the battery voltage. Timer value setting means for setting a timer value according to the battery voltage with a signal output from the battery voltage detecting means as an input, counting the timer value set by the timer value setting means, and generating a signal by timer overflow Timer means for outputting, and after inputting a signal from the timer means, starts detecting a change in battery voltage, and detects that the battery voltage during charging has fallen by a specified value from a peak value, and outputs a signal to detect completion of charging. And a current control means for controlling a charging current by using a signal from the charge completion detecting means as an input.
【０００９】さらに上記構成に電池温度を検出する温度
検出手段を付加し、前記電池電圧検出手段から出力され
る信号と前記温度検出手段から出力される信号とを入力
とするタイマ値設定手段により、電池電圧と電池温度に
応じてタイマ値を設定する構成とすることで、低温充電
時の充電不足のない確実な充電を行うことができる。[0009] Further, a temperature detecting means for detecting a battery temperature is added to the above configuration, and a timer value setting means which receives a signal output from the battery voltage detecting means and a signal output from the temperature detecting means as inputs is provided. With the configuration in which the timer value is set according to the battery voltage and the battery temperature, reliable charging without insufficient charging during low-temperature charging can be performed.
【００１０】[0010]
【作用】本発明の充電装置では、電池電圧検出手段とタ
イマ値設定手段とにより、充電開始時点の電池電圧に応
じて充電開始後の−△Ｖ検出をしない区間のタイマ値を
設定でき、過放電電池等の電池電圧が低い場合には、タ
イマ値を長くして充電初期段階での−△Ｖの検出を行わ
ず、充電不足を防ぎ、また満充電電池等の電池電圧が高
い場合には、タイマ値を短くして−△Ｖの検出を早く
し、過充電を防ぐ。さらに温度検出手段を付加すること
により、低温充電時に過放電電池でない通常の電池状態
であってもタイマ値を長くして充電初期段階での−△Ｖ
の検出を行わず、充電不足を防ぐ。このようにタイマ値
を電池の状態に応じて適切に設定することで、過放電電
池の充電不足のない確実な充電ができ、また満充電電池
の再充電時の過充電を防止できるものである。According to the charging device of the present invention, the timer value in the section in which-△ V is not detected after the start of charging can be set by the battery voltage detecting means and the timer value setting means according to the battery voltage at the time of starting charging. When the battery voltage of a discharge battery or the like is low, the timer value is lengthened to prevent detection of-△ V at the initial stage of charging to prevent insufficient charging, and when the battery voltage of a fully charged battery or the like is high , The timer value is shortened, the detection of -ΔV is made earlier, and overcharge is prevented. Further, by adding a temperature detecting means, the timer value is lengthened even in a normal battery state which is not an overdischarged battery at the time of low temperature charging, and -ΔV at the initial stage of charging is increased.
Detection is not performed to prevent insufficient charging. By appropriately setting the timer value according to the state of the battery in this way, it is possible to reliably charge the overdischarged battery without insufficient charging, and to prevent overcharging when recharging a fully charged battery. .
【００１１】[0011]
【実施例】以下本発明の実施例について図面を参照しな
がら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１は本発明の一実施例を示す構成図であ
る。図１において、１は二次電池、２は電池電圧検出手
段で、二次電池１の電圧に比例した信号を出力する。３
はマイコンで、電池電圧検出手段２の出力により電池電
圧に応じてタイマ値を設定するタイマ値設定手段３１
と、タイマ値設定手段３１で設定されたタイマをカウン
トしタイマのオーバーフローにより信号を出力するタイ
マ手段３２と、タイマ手段３２からの信号を入力後−△
Ｖの検出を開始し、検出後信号を出力する充電完了検出
手段３３とで構成されている。４は電流制御手段で、充
電完了検出手段３３からの信号を入力後、充電電流を制
御する。５は充電用電源で二次電池１に充電電流を供給
する。FIG. 1 is a block diagram showing one embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a secondary battery, and 2 denotes a battery voltage detecting means, which outputs a signal proportional to the voltage of the secondary battery 1. 3
A timer value setting means 31 for setting a timer value according to the battery voltage based on the output of the battery voltage detecting means 2
And timer means 32 for counting the timer set by the timer value setting means 31 and outputting a signal when the timer overflows, and after inputting the signal from the timer means 32
And a charge completion detecting means 33 which starts detection of V and outputs a signal after the detection. Reference numeral 4 denotes a current control unit which controls a charging current after inputting a signal from the charging completion detecting unit 33. A charging power supply 5 supplies a charging current to the secondary battery 1.
【００１３】以上のように構成された充電装置につい
て、以下その動作を説明する。まず充電を行うため二次
電池１は充電装置に接続される。このとき充電を開始す
る前に、電池電圧検出手段２によって二次電池１の電池
電圧を測定する。電池電圧検出手段２で測定された充電
開始前の電池電圧ＶB を入力とするタイマ値設定手段３
１によってタイマ値を演算し、電池電圧に反比例したタ
イマ値Ｔを設定する。次にタイマ手段３２によりタイマ
を起動し、充電電流Ｉ1 で充電を開始する。充電開始後
タイマ経過中は電池電圧がピーク値より規定値降下して
も−△Ｖの検出は行わず、タイマのオーバーフロー後タ
イマ手段３２から信号が出力される。充電完了検出手段
３３は、タイマ手段３２からの信号を入力後、電池電圧
検出手段２からの信号を入力し、−△Ｖの検出を開始
し、−△Ｖ検出後信号を出力する。電流制御手段４は充
電完了検出手段３３からの信号を入力して、電源５から
の充電を停止する。図２は、充電開始前の電池電圧ＶB
とタイマ値Ｔとの関係を示す図であり、タイマ値は電池
電圧の関数であって、過放電電池等の充電開始前の電池
電圧が低い程タイマ値を長くする。図３は、本実施例の
マイコンのフローチャートを示す図である。The operation of the charging device configured as described above will be described below. First, the secondary battery 1 is connected to a charging device for charging. At this time, before starting charging, the battery voltage of the secondary battery 1 is measured by the battery voltage detecting means 2. Timer value setting means 3 for receiving the measured charge before the start of the battery voltage V B by the battery voltage detecting means 2
The timer value is calculated by 1 and a timer value T that is inversely proportional to the battery voltage is set. Then starts the timer by the timer means 32 to start charging at a charging current I 1. While the timer has elapsed since the start of charging, even if the battery voltage falls below the peak value by a specified value,-△ V is not detected, and a signal is output from the timer means 32 after the timer overflows. The charging completion detecting means 33 receives the signal from the timer means 32, inputs the signal from the battery voltage detecting means 2, starts detecting -ΔV, and outputs a signal after detecting -ΔV. The current control unit 4 receives a signal from the charge completion detection unit 33 and stops charging from the power supply 5. FIG. 2 shows the battery voltage V B before the start of charging.
FIG. 5 is a diagram showing a relationship between the timer value T and the timer value, which is a function of the battery voltage, and the timer value is made longer as the battery voltage before the start of charging of an overdischarged battery or the like is lower. FIG. 3 is a diagram illustrating a flowchart of the microcomputer of the present embodiment.
【００１４】以下本発明の第２の実施例について説明す
る。第２の実施例の構成は第１の実施例の構成と同じで
あり、タイマ値設定手段３１のタイマ値の設定方法が異
なるだけであるので、その構成図は省略する。図４−
（Ａ）と図４−（Ｂ）と図５と図６は、タイマ値設定方
法の第２の実施例を示す図である。図４−（Ａ）及び同
図中のＢ部分の拡大図である図４−（Ｂ）は、充電開始
時に規定電流で充電したときの電池電圧と時間との関係
を示し、図５は、充電開始時に規定電流で充電して電池
電圧がある規定電圧に達するまでの時間ｔとタイマ値Ｔ
との関係を示し、タイマ値は電池電圧がある規定電圧に
達するまでの時間の関数で表され、図６は、第２の実施
例のマイコンのフローチャートを示す。まず充電開始時
に規定電流Ｉ0 で充電し、電池電圧検出手段２で測定さ
れた電池電圧ＶB がある規定電圧Ｖ 3 に達するまでの時
間ｔ3 によりタイマ値を演算し、時間ｔ3 に比例したタ
イマ値を設定し、過放電電池等のこの時間ｔ3 が長い程
タイマ値を長くする。以降は第１の実施例と同じである
ので、これ以降の説明は省略する。Hereinafter, a second embodiment of the present invention will be described.
You. The configuration of the second embodiment is the same as the configuration of the first embodiment.
The setting method of the timer value of the timer value setting means 31 is different.
Therefore, the configuration diagram is omitted. Fig. 4-
(A), Fig. 4- (B), Fig. 5 and Fig. 6 show how to set the timer value.
FIG. 4 is a diagram showing a second embodiment of the method. FIG. 4- (A) and FIG.
FIG. 4B, which is an enlarged view of a portion B in the figure, shows the start of charging.
Between battery voltage and time when charged with specified current at times
FIG. 5 shows that the battery is charged with a specified current at the start of charging.
Time t until the voltage reaches a certain specified voltage and timer value T
The timer value is set to a certain specified voltage.
As a function of time to reach, FIG. 6 shows the second implementation
3 shows a flowchart of an example microcomputer. At the beginning of charging
The specified current I0And measured by the battery voltage detecting means 2.
Battery voltage VBThere is a specified voltage V ThreeTime to reach
Interval tThreeThe timer value is calculated byThreeIs proportional to
Set the time value and set this time tThreeThe longer
Increase the timer value. Subsequent steps are the same as in the first embodiment.
Therefore, the description that follows is omitted.
【００１５】以下本発明の第３の実施例について説明す
る。第３の実施例の構成は、第１の実施例の構成と同じ
であり、タイマ値設定手段３１のタイマ値の設定方法が
異なるだけであるので、その構成図は省略する。図７−
（Ａ）と図７−（Ｂ）と図８と図９はタイマ値設定方法
の第３の実施例を示す図である。図７−（Ａ）及び同図
中のＢ部分の拡大図である図７−（Ｂ）は、充電開始時
に規定電流で充電したときの電池電圧と時間との関係を
示し、図８は、充電開始時に規定電流で充電して電池電
圧がある規定電圧分上昇する時間△ｔとタイマ値Ｔとの
関係を示し、図９は、第３の実施例のマイコンのフロー
チャートを示す。まず充電開始時に規定電流Ｉ0 で充電
し、電池電圧検出手段２で測定された電池電圧ＶB があ
る規定電圧分△ＶB （＝Ｖ5 −Ｖ4 ）上昇するまでの時
間△ｔ（＝ｔ5 −ｔ4 ）によりタイマ値を演算し、時間
△ｔに比例したタイマ値を設定し、過放電電池等のこの
時間△ｔが長い程タイマ値を長くする。以降は、第１の
実施例と同じであるので、これ以降の説明は省略する。Hereinafter, a third embodiment of the present invention will be described. The configuration of the third embodiment is the same as that of the first embodiment, except that the method of setting the timer value by the timer value setting means 31 is different. Fig. 7-
FIGS. 7A, 7B, 8 and 9 show a third embodiment of the timer value setting method. FIG. 7- (A) and FIG. 7- (B), which is an enlarged view of a portion B in FIG. 7- (B), show the relationship between battery voltage and time when charging is performed at a specified current at the start of charging. FIG. 9 shows the relationship between the time Δt at which the battery voltage rises by a specified voltage at the time of charging with the specified current at the start of charging and the timer value T, and FIG. 9 shows a flowchart of the microcomputer of the third embodiment. First, at the start of charging, the battery is charged with the specified current I 0 , and the time Δt (= until the battery voltage V B measured by the battery voltage detecting means 2 increases by a specified voltage ΔV B (= V 5 −V 4 )) The timer value is calculated from (t 5 −t 4 ), and a timer value proportional to the time Δt is set. The longer the time Δt of the overdischarged battery or the like, the longer the timer value. Subsequent steps are the same as in the first embodiment, and a description thereof will be omitted.
【００１６】以下本発明の第４の実施例について説明す
る。第４の実施例の構成は第１の実施例の構成と同じで
あり、タイマ値設定手段３１のタイマ値の設定方法が異
なるだけであるので、その構成図は省略する。図１０−
（Ａ）と図１０−（Ｂ）と図１１と図１２はタイマ値設
定方法の第４の実施例を示す図である。図１０−（Ａ）
及び同図中のＢ部分の拡大図である図１０−（Ｂ）は、
充電開始時に規定電流で充電したときの電池電圧と時間
との関係を示し、図１１は、充電開始時に規定電流で充
電し、ある規定時間当たりの電池電圧の上昇値△ＶB と
タイマ値Ｔとの関係を示し、図１２は、第４の実施例の
マイコンのフローチャートを示す。まず充電開始時に規
定電流Ｉ0 で充電し、ある規定時間△ｔ（＝ｔ7 −
ｔ6 ）の間に変化する電圧上昇分△ＶB （＝Ｖ7 −
Ｖ6 ）によりタイマ値を演算し、電圧上昇分△ＶB に比
例したタイマ値を設定し、過放電電池等のこの電圧上昇
分△ＶB が少ない程タイマ値を長くする。以降は第１の
実施例と同じであるので、これ以降の説明は省略する。Hereinafter, a fourth embodiment of the present invention will be described. The configuration of the fourth embodiment is the same as the configuration of the first embodiment, except that the method of setting the timer value by the timer value setting means 31 is different. Fig. 10-
(A), FIG. 10- (B), FIG. 11 and FIG. 12 are diagrams showing a fourth embodiment of the timer value setting method. FIG. 10- (A)
FIG. 10- (B), which is an enlarged view of a portion B in FIG.
FIG. 11 shows the relationship between battery voltage and time when charging at a specified current at the start of charging. FIG. 11 shows charging at a specified current at the start of charging, and a rise in battery voltage per specified time ΔV B and a timer value T FIG. 12 shows a flowchart of the microcomputer of the fourth embodiment. First, at the start of charging, the battery is charged with the specified current I 0 , and a certain specified time Δt (= t 7 −
The voltage rise ΔV B (= V 7 −) that changes during t 6 )
Calculates the timer value by V 6), sets a timer value proportional to the voltage rise △ V B, a longer as the timer value is less the voltage rise △ V B, such as over-discharge battery. Subsequent steps are the same as in the first embodiment, and a description thereof will be omitted.
【００１７】以下本発明の第５の実施例について図面を
参照しながら説明する。図１３は本発明の第５の実施例
を示す図で、６は温度検出手段で、二次電池１の温度に
比例した信号を出力する。３１はタイマ値設定手段で、
電池電圧検出手段２の出力及び温度検出手段６の出力に
より電池電圧及び電池温度に応じてタイマ値を設定す
る。その他の構成は基本的に図１と同じであるので、同
一部には同一番号を付与し、その詳細な説明は省略す
る。図１３で二次電池１の充電を開始する前に、電池電
圧検出手段２によって二次電池１の電池電圧及び温度検
出手段６によって二次電池１の電池温度を測定する。電
池電圧検出手段２で測定された充電開始前の電池電圧Ｖ
B 及び温度検出手段６で測定された充電開始前の電池温
度ＶT を入力とするタイマ値設定手段３１によって、タ
イマ値を電池電圧と電池温度の関数として演算し、タイ
マ値Ｔを設定する。以降は第１の実施例と同じであるの
で、これ以降の説明は省略する。図１４は、充電開始前
の電池電圧ＶB 及び電池温度Ｖ T とタイマ値Ｔとの関係
を示す図であり、タイマ値は電池電圧及び電池電圧の関
数であり、過放電電池等の充電開始前の電池電圧が低い
程、さらに電池温度が低い程、タイマ値を長くする。図
１５は第５の実施例のマイコンのフローチャートを示す
図である。A fifth embodiment of the present invention will now be described with reference to the drawings.
It will be described with reference to FIG. FIG. 13 shows a fifth embodiment of the present invention.
FIG. 6 shows a temperature detecting means 6 for detecting the temperature of the secondary battery 1.
Outputs a proportional signal. 31 is a timer value setting means.
The output of the battery voltage detecting means 2 and the output of the temperature detecting means 6
Set the timer value according to the battery voltage and battery temperature.
You. Other configurations are basically the same as those in FIG.
Some parts are assigned the same numbers, and detailed descriptions thereof are omitted.
You. Before starting charging of the secondary battery 1 in FIG.
The battery voltage and temperature of the secondary battery 1 are detected by the pressure detecting means 2.
The output unit 6 measures the battery temperature of the secondary battery 1. Electric
Battery voltage V before charging, measured by battery voltage detecting means 2
BAnd the battery temperature before charging measured by the temperature detecting means 6
Degree VTThe timer value setting means 31 which receives
Calculate the time value as a function of battery voltage and battery temperature
A value T is set. Subsequent steps are the same as in the first embodiment.
Therefore, the description that follows is omitted. FIG. 14 shows the state before the start of charging.
Battery voltage VBAnd battery temperature V TBetween timer value and timer value T
FIG. 9 is a diagram showing a timer value, which is related to a battery voltage and a battery voltage.
Battery voltage before starting charging of overdischarged battery etc. is low
The timer value is set longer as the battery temperature is lower and the battery temperature is lower. Figure
15 shows a flowchart of the microcomputer of the fifth embodiment.
FIG.
【００１８】尚、本実施例では、タイマ値の設定につい
て、電池電圧の検出において充電開始前の電池電圧とし
たが、第２の実施例のように充電開始時に規定電流で充
電し電池電圧がある規定電圧に達するまでの時間とする
か、あるいは第３の実施例のように充電開始時に規定電
流で充電し電池電圧がある規定電圧分上昇する時間とす
るか、あるいは第４の実施例のように充電開始時に規定
電流で充電しある規定時間当たりの電池電圧の上昇値と
してもよい。In this embodiment, the timer value is set to the battery voltage before the start of charging in the detection of the battery voltage. However, as in the second embodiment, the battery is charged with a specified current at the start of charging and the battery voltage is reduced. Either the time until the voltage reaches a certain specified voltage, or the time when the battery is charged with the specified current at the start of charging and the battery voltage rises by a certain specified voltage as in the third embodiment, or As described above, at the start of charging, the battery may be charged at a specified current and may be set to a rise value of the battery voltage per specified time.
【００１９】以下本発明の第６の実施例について説明す
る。第６の実施例の構成は第１の実施例の構成と同じで
あり、タイマ値設定手段３１のタイマ値の設定方法が異
なるだけであるので、その構成図は省略する。図１６と
図１７は、タイマ値設定方法の第６の実施例を示す図で
ある。図１６は、充電開始前の電池電圧とタイマ値との
関係で、電池電圧の規定範囲ごとにタイマ値を段階的に
設定することを示し、図１７は、第６の実施例のマイコ
ンのフローチャートを示す。まず電池電圧検出手段２で
測定された充電開始前の電池電圧ＶB とあるしきい値Ｖ
1 およびＶ2 とを比較し、ＶB ＜Ｖ1 の範囲ならタイマ
値Ｔ1 、Ｖ1 ＜ＶB ＜Ｖ2 の範囲ならタイマ値Ｔ2 、Ｖ
2 ＜ＶB の範囲ならタイマ値Ｔ3 を設定し、過放電電池
等の充電開始前の電池電圧が低い程タイマ値を段階的に
長くする。以降は第１の実施例と同じであるので、これ
以降の説明は省略する。Hereinafter, a sixth embodiment of the present invention will be described. The configuration of the sixth embodiment is the same as that of the first embodiment, except that the method of setting the timer value by the timer value setting means 31 is different. FIG. 16 and FIG. 17 are diagrams showing a sixth embodiment of the timer value setting method. FIG. 16 shows that the timer value is set stepwise for each specified range of the battery voltage in the relationship between the battery voltage and the timer value before the start of charging, and FIG. 17 is a flowchart of the microcomputer of the sixth embodiment. Is shown. First, the battery voltage V B before the start of charging measured by the battery voltage detecting means 2 and a certain threshold V
1 and V 2 and to compare, V B <range if the timer value T 1 of the V 1, V 1 <V B < If the range of V 2 timer value T 2, V
2 <Specify the range if the timer value T 3 of V B, the battery voltage before the start of charging is incrementally longer low enough timer values, such as over-discharge battery. Subsequent steps are the same as in the first embodiment, and a description thereof will be omitted.
【００２０】尚、本実施例では、タイマ値を充電開始前
の電池電圧の規定範囲ごとに段階的に設定したが、第２
の実施例のように充電開始時に規定電流で充電し電池電
圧がある規定電圧に達するまでの時間の規定範囲ごとに
段階的に設定するか、あるいは第３の実施例のように充
電開始時に規定電流で充電し電池電圧がある規定電圧分
上昇する時間の規定範囲ごとに段階的に設定するか、あ
るいは第４の実施例のように充電開始時に規定電流で充
電しある規定時間当たりの電池電圧の上昇値の規定範囲
ごとに段階的に設定するか。あるいは第５の実施例のよ
うに電池電圧と電池温度とで決まる値の規定範囲ごとに
段階的に設定してもよい。In this embodiment, the timer value is set stepwise for each specified range of the battery voltage before the start of charging.
The battery is charged at a specified current at the start of charging as in the third embodiment, and is set stepwise in a specified range of time until the battery voltage reaches a certain specified voltage, or specified at the start of charging as in the third embodiment. Either the battery is charged with a current and set in steps of a specified range of time during which the battery voltage rises by a specified voltage, or the battery voltage per specified time charged with a specified current at the start of charging as in the fourth embodiment. To be set step by step for each specified range of rising value of Alternatively, as in the fifth embodiment, it may be set in a stepwise manner for each specified range of values determined by the battery voltage and the battery temperature.
【００２１】以上のように本実施例によれば、充電開始
時点の電池電圧を検出し、この電池電圧に比例した信号
を出力する電池電圧検出手段と、電池電圧検出手段から
出力される信号を入力として電池電圧に応じてタイマ値
を設定するタイマ値設定手段と、タイマ値設定手段によ
り設定されたタイマ値をカウントし、タイマのオーバー
フローにより信号を出力するタイマ手段と、タイマ手段
からの信号を入力後、電池電圧変化の検出を開始し充電
中の電池電圧がピーク値より規定値降下したことを検出
して信号を出力する充電完了検出手段と、充電完了検出
手段からの信号を入力として充電電流を制御する電流制
御手段とを設け、タイマ値を適切に設定することで過放
電電池の充電不足のない確実な充電を行うことができま
た満充電電池の再充電時の過充電を防止できる。As described above, according to the present embodiment, the battery voltage detecting means for detecting the battery voltage at the start of charging and outputting a signal proportional to the battery voltage, and the signal output from the battery voltage detecting means, Timer value setting means for setting a timer value according to the battery voltage as an input, timer means for counting the timer value set by the timer value setting means and outputting a signal when the timer overflows, and outputting a signal from the timer means. After the input, the detection of a change in the battery voltage is started, the charging completion detecting means for detecting that the battery voltage during charging has fallen by a specified value from the peak value and outputting a signal, and the charging from the signal from the charging completion detecting means as an input. Current control means for controlling the current is provided, and by appropriately setting the timer value, reliable charging without insufficient charging of the overdischarged battery can be performed. Overcharging can be prevented at the time of power.
【００２２】さらに上記構成に電池温度を検出する温度
検出手段を付加し、電池電圧検出手段から出力される信
号及び温度検出手段から出力される信号を入力として電
池電圧と電池温度に応じてタイマ値を設定することによ
り、低温充電時の充電不足のない確実な充電ができる。Further, a temperature detecting means for detecting a battery temperature is added to the above-mentioned structure, and a timer value is set in accordance with the battery voltage and the battery temperature by inputting a signal output from the battery voltage detecting means and a signal output from the temperature detecting means. By setting, reliable charging without insufficient charging during low-temperature charging can be performed.
【００２３】[0023]
【発明の効果】以上のように、本発明では、充電開始時
点の電池電圧を検出し、この電池電圧に比例した信号を
出力する電池電圧検出手段と、電池電圧検出手段から出
力される信号を入力として電池電圧に応じてタイマ値を
設定するタイマ値設定手段と、タイマ値設定手段により
設定されたタイマ値をカウントし、タイマのオーバーフ
ローにより信号を出力するタイマ手段と、タイマ手段か
らの信号を入力後、電池電圧変化の検出を開始し、充電
中の電池電圧がピーク値より規定値降下したことを検出
して信号を出力する充電完了検出手段と、充電完了検出
手段の信号を入力として充電電流を制御する電流制御手
段とを設けることによって、タイマ値の設定に際し、過
放電電池等の電池電圧が低い場合には、タイマ値を長く
して充電初期段階で−△Ｖの検出を行わずに充電不足を
防ぎ、また満充電電池等の電池電圧が高い場合には、タ
イマ値を短くして−△Ｖの検出を早くし、過充電を防ぐ
ことができる。このようにタイマ値を電池の状態に応じ
て適切に設定することで、過放電電池の充電不足のない
確実な充電ができ、また満充電電池の再充電時の過充電
を防止できるような充電装置を実現できる。As described above, according to the present invention, a battery voltage detecting means for detecting a battery voltage at the start of charging and outputting a signal proportional to the battery voltage, and a signal output from the battery voltage detecting means. Timer value setting means for setting a timer value according to the battery voltage as an input, timer means for counting the timer value set by the timer value setting means and outputting a signal when the timer overflows, and outputting a signal from the timer means. After the input, the detection of a change in the battery voltage is started, and the charge completion detection means for outputting a signal by detecting that the battery voltage during charging has fallen by a specified value from the peak value, and charging by using the signal of the charge completion detection means as an input By providing a current control means for controlling the current, when setting the timer value, when the battery voltage of the overdischarged battery or the like is low, the timer value is lengthened and the initial charging stage is started. Insufficient charging can be prevented without detecting -ΔV, and when the battery voltage of a fully charged battery or the like is high, the timer value can be shortened to quickly detect -ΔV, thereby preventing overcharging. . By appropriately setting the timer value according to the state of the battery in this manner, charging can be reliably performed without insufficient charging of the over-discharged battery, and charging that can prevent overcharging when recharging a fully charged battery. The device can be realized.
【００２４】さらに上記構成に電池温度を検出する温度
検出手段を付加することにより、電池電圧検出手段から
出力される信号及び温度検出手段から出力される信号を
入力として、電池電圧と電池温度に応じてタイマ値が設
定され、低温充電時の充電不足のない確実な充電ができ
る充電装置を実現できる。Further, by adding temperature detecting means for detecting the battery temperature to the above configuration, a signal output from the battery voltage detecting means and a signal output from the temperature detecting means are input, and the signal is output according to the battery voltage and the battery temperature. Thus, it is possible to realize a charging device in which a timer value is set and charging can be performed reliably without insufficient charging during low-temperature charging.
【図１】本発明の第１の実施例を示す構成図FIG. 1 is a configuration diagram showing a first embodiment of the present invention.
【図２】第１の実施例における充電開始前の電池電圧と
タイマ値との関係を示す図FIG. 2 is a diagram showing a relationship between a battery voltage and a timer value before the start of charging in the first embodiment.
【図３】第１の実施例におけるマイコンのフローチャー
トFIG. 3 is a flowchart of a microcomputer according to the first embodiment;
【図４】（Ａ）本発明の第２の実施例における電池電圧
と時間との関係を示す図 （Ｂ）（Ａ）中のＢ部分の拡大図FIG. 4A is a diagram showing the relationship between battery voltage and time in a second embodiment of the present invention. FIG. 4B is an enlarged view of a portion B in FIG.
【図５】第２の実施例における電池電圧が規定電圧に達
する時間とタイマ値との関係を示す図FIG. 5 is a diagram showing a relationship between a time when a battery voltage reaches a specified voltage and a timer value in a second embodiment.
【図６】第２の実施例におけるマイコンのフローチャー
トFIG. 6 is a flowchart of a microcomputer according to a second embodiment.
【図７】（Ａ）本発明の第３の実施例における電池電圧
と時間との関係を示す図 （Ｂ）（Ａ）中のＢ部分の拡大図7A is a diagram showing a relationship between battery voltage and time in a third embodiment of the present invention. FIG. 7B is an enlarged view of a portion B in FIG.
【図８】第３の実施例における電池電圧が規定電圧分上
昇する時間とタイマ値との関係を示す図FIG. 8 is a diagram showing a relationship between a time when a battery voltage rises by a specified voltage and a timer value in a third embodiment.
【図９】第３の実施例におけるマイコンのフローチャー
トFIG. 9 is a flowchart of a microcomputer according to a third embodiment.
【図１０】（Ａ）本発明の第４の実施例における電池電
圧と時間との関係を示す図 （Ｂ）（Ａ）中のＢ部分の拡大図10A is a diagram showing a relationship between battery voltage and time in a fourth embodiment of the present invention. FIG. 10B is an enlarged view of a portion B in FIG.
【図１１】第４の実施例における池電圧の規定時間当た
りの上昇値とタイマ値との関係を示す図FIG. 11 is a diagram showing a relationship between a rise value of a battery voltage per specified time and a timer value in a fourth embodiment.
【図１２】第４の実施例におけるマイコンのフローチャ
ートFIG. 12 is a flowchart of a microcomputer according to a fourth embodiment.
【図１３】本発明の第５の実施例を示す構成図FIG. 13 is a configuration diagram showing a fifth embodiment of the present invention.
【図１４】第５の実施例における電池電圧及び電池温度
とタイマ値との関係を示す図FIG. 14 is a diagram illustrating a relationship between a battery voltage and a battery temperature and a timer value according to a fifth embodiment.
【図１５】第５の実施例におけるマイコンのフローチャ
ートFIG. 15 is a flowchart of a microcomputer according to a fifth embodiment.
【図１６】第６の実施例における電池電圧とタイマ値と
の関係を示す図FIG. 16 is a diagram showing a relationship between a battery voltage and a timer value in a sixth embodiment.
【図１７】第６の実施例におけるマイコンのフローチャ
ートFIG. 17 is a flowchart of a microcomputer according to a sixth embodiment.
【図１８】従来例を示す構成図FIG. 18 is a configuration diagram showing a conventional example.
【図１９】従来例における過放電電池の充電特性を示す
図FIG. 19 is a diagram showing charging characteristics of an overdischarged battery in a conventional example.
【図２０】従来例におけるタイマ値が短い時の過放電電
池の充電を示す図FIG. 20 is a diagram showing charging of an overdischarged battery when a timer value is short in a conventional example.
【図２１】従来例におけるタイマ値が長い時の満充電電
池の再充電を示す図FIG. 21 is a diagram showing recharging of a fully charged battery when a timer value is long in a conventional example.
【図２２】従来例における低温時の電池充電特性を示す
図FIG. 22 is a diagram showing battery charging characteristics at a low temperature in a conventional example.
１ 二次電池 ２ 電池電圧検出手段 ３ マイコン ４ 電流制御手段 ５ 電源 DESCRIPTION OF SYMBOLS 1 Secondary battery 2 Battery voltage detection means 3 Microcomputer 4 Current control means 5 Power supply
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−293941（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H02J 7/00 - 7/12 H02J 7/34 - 7/36 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-293941 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H02J 7/00-7/12 H02J 7 / 34-7/36
Claims (5)
電池電圧に比例した信号を出力する電池電圧検出手段
と、前記電池電圧検出手段から出力される信号を入力と
して電池電圧に応じてタイマ値を設定するタイマ値設定
手段と、前記タイマ値設定手段により設定されたタイマ
値をカウントし、タイマのオーバーフローにより信号を
出力するタイマ手段と、前記タイマ手段からの信号を入
力後、電池電圧変化の検出を開始し、充電中の電池電圧
がピーク値より規定値降下したことを検出して信号を出
力する充電完了検出手段と、前記充電完了検出手段の信
号を入力として充電電流を制御する電流制御手段とを備
え、 前記タイマ値設定手段のタイマ値の設定を、充電開始時
に規定電流で充電し電池電圧がある規定電圧に達するま
での時間に応じて決定することを特徴とする 充電装置。1. A battery voltage detecting means for detecting a battery voltage at the start of charging and outputting a signal proportional to the battery voltage, and a timer which receives a signal output from the battery voltage detecting means as an input and responds to the battery voltage. Timer value setting means for setting a value; timer means for counting the timer value set by the timer value setting means and outputting a signal due to a timer overflow; And a signal for detecting that the battery voltage during charging has dropped by a specified value from a peak value and outputting a signal, and a current for controlling a charging current using the signal of the charge completion detecting means as an input. Control means
The setting of the timer value of the timer value setting means is performed at the start of charging.
At the specified current until the battery voltage reaches a certain specified voltage.
The charging device is determined according to the time in the charging device.
電池電圧に比例した信号を出力する電池電圧検出手段
と、前記電池電圧検出手段から出力される信号を入力と
して電池電圧に応じてタイマ値を設定するタイマ値設定
手段と、前記タイマ値設定手段により設定されたタイマ
値をカウントし、タイマのオーバーフローにより信号を
出力するタイマ手段と、前記タイマ手段からの信号を入
力後、電池電圧変化の検出を開始し、充電中の電池電圧
がピーク値より規定値降下したことを検出して信号を出
力する充電完了検出手段と、前記充電完了検出手段の信
号を入力として充電電流を制御する電流制御手段とを備
え、 前記タイマ値設定手段のタイマ値の設定を、充電開始時
に規定電流で充電し電池電圧がある規定電圧分上昇する
時間に応じて決定することを特徴とする 充電装置。2. A battery voltage at the start of charging is detected.
Battery voltage detecting means for outputting a signal proportional to the battery voltage
And a signal output from the battery voltage detection means as an input.
Timer value setting to set the timer value according to the battery voltage
Means and a timer set by the timer value setting means
Counts the value and outputs a signal when the timer overflows.
Timer means for outputting, and a signal from the timer means
After detecting the battery voltage change,
Detects that the specified value has dropped below the peak value, and issues a signal.
Charging completion detecting means, and a signal from the charging completion detecting means.
Current control means for controlling the charging current using the
The setting of the timer value of the timer value setting means is performed at the start of charging.
And the battery voltage rises by a certain specified voltage
A charging device, which is determined according to time .
電池電圧に比例した信号を出力する電池電圧検出手段
と、前記電池電圧検出手段から出力される信号を入力と
して電池電圧に応じてタイマ値を設定するタイマ値設定
手段と、前記タイマ値設定手段により設定されたタイマ
値をカウントし、タイマのオーバーフローにより信号を
出力するタイマ手段と、前記タイマ手段からの信号を入
力後、電池電圧変化の検出を開始し、充電中の電池電圧
がピーク値より規定値降下したこと を検出して信号を出
力する充電完了検出手段と、前記充電完了検出手段の信
号を入力として充電電流を制御する電流制御手段とを備
え、 前記タイマ値設定手段のタイマ値の設定を、充電開始時
に規定電流で充電しある規定時間当たりの電池電圧の上
昇値に応じて決定することを特徴とする 充電装置。3. A battery voltage at the start of charging is detected.
Battery voltage detecting means for outputting a signal proportional to the battery voltage
And a signal output from the battery voltage detection means as an input.
Timer value setting to set the timer value according to the battery voltage
Means and a timer set by the timer value setting means
Counts the value and outputs a signal when the timer overflows.
Timer means for outputting, and a signal from the timer means
After detecting the battery voltage change,
Detects that the specified value has dropped below the peak value, and issues a signal.
Charging completion detecting means, and a signal from the charging completion detecting means.
Current control means for controlling the charging current using the
The setting of the timer value of the timer value setting means is performed at the start of charging.
Above the battery voltage per specified time
A charging device characterized in that it is determined according to a rising value .
に備え、前記タイマ値設定手段のタイマ値の設定におい
て、前記電池電圧検出手段と前記温度検出手段とから出
力される信号を入力として電池電圧と電池温度とに応じ
てタイマ値を設定することを特徴とする請求項１、請求
項２、または請求項３のいずれか一項に記載の充電装
置。 A temperature detecting means for detecting a battery temperature;
In the setting of the timer value by the timer value setting means.
Output from the battery voltage detecting means and the temperature detecting means.
Input the input signal as a function of battery voltage and battery temperature.
And a timer value is set by a timer.
The charging device according to any one of claim 2 and claim 3 .
を、充電開始時の電池電圧、あるいは充電開始時に規定
電流で充電し電池電圧がある規定電圧に達するまでの時
間、あるいは充電開始時に規定電流で充電し電池電圧が
ある規定電圧分上昇する時間、あるいは充電開始時に規
定電流で充電しある規定時間当たりの電池電圧の上昇
値、あるいは電池電圧の規定範囲ごとに段階的に決定す
ることを特徴とする請求項１、請求項２、請求項３、ま
たは請求項４のいずれか一項に記載の充電装置。 5. Setting of a timer value of said timer value setting means.
Is specified at the start of charging or at the start of charging.
When charging with current and battery voltage reaches a certain specified voltage
At the specified current during or at the start of charging,
The time required to rise by a certain specified voltage or when charging starts
Increase in battery voltage per specified time charged with constant current
Value or step by step for each specified range of battery voltage.
Claim 1, Claim 2, Claim 3, or
A charging device according to claim 4 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15352994A JP3173288B2 (en) | 1994-07-05 | 1994-07-05 | Charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15352994A JP3173288B2 (en) | 1994-07-05 | 1994-07-05 | Charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0823640A JPH0823640A (en) | 1996-01-23 |
| JP3173288B2 true JP3173288B2 (en) | 2001-06-04 |
Family
ID=15564522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15352994A Expired - Fee Related JP3173288B2 (en) | 1994-07-05 | 1994-07-05 | Charging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3173288B2 (en) |
-
1994
- 1994-07-05 JP JP15352994A patent/JP3173288B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0823640A (en) | 1996-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3048755B2 (en) | Rechargeable battery charger | |
| JPH082149B2 (en) | Charger | |
| JPH097641A (en) | Charging method of secondary battery | |
| EP1338074B1 (en) | Temperature limitation in li battery charging | |
| JP4017586B2 (en) | How to charge the battery | |
| JP3306188B2 (en) | Rechargeable battery charging method | |
| JP3401517B2 (en) | Battery pack power supply | |
| JPH08126222A (en) | Charger | |
| JP2001028841A (en) | Method for controlling charging of battery and device for executing the same | |
| JP3173288B2 (en) | Charging device | |
| JP3220797B2 (en) | Rechargeable battery charging method | |
| JPH08103032A (en) | Charging for secondary battery | |
| JPH0737621A (en) | Device for judging residual capacity of secondary battery and charging device using it | |
| JP3420325B2 (en) | Rechargeable battery charging circuit | |
| JP2005027435A (en) | Charging equipment | |
| JP3208786B2 (en) | Battery charger | |
| JP3421404B2 (en) | Rechargeable battery charging method | |
| JPH0698472A (en) | Charging method | |
| JPH1032020A (en) | Charge and discharge control method for sealed type lead-acid battery | |
| JPH08149709A (en) | Charger for secondary battery | |
| JP3426616B2 (en) | Battery charger | |
| JP3089887B2 (en) | Charge control method for battery charger | |
| KR100478891B1 (en) | How to determine the quality of the battery | |
| JP3157312B2 (en) | Charging device | |
| JP3219443B2 (en) | Battery charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080330 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090330 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100330 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110330 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110330 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120330 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130330 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |