JPH0618465B2 - Charger - Google Patents
ChargerInfo
- Publication number
- JPH0618465B2 JPH0618465B2 JP62100723A JP10072387A JPH0618465B2 JP H0618465 B2 JPH0618465 B2 JP H0618465B2 JP 62100723 A JP62100723 A JP 62100723A JP 10072387 A JP10072387 A JP 10072387A JP H0618465 B2 JPH0618465 B2 JP H0618465B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- battery
- current
- normal
- timer
- 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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は充電器の改良に関するものである。Description: FIELD OF THE INVENTION The present invention relates to improvements in chargers.
従来の技術 従来より、鉛蓄電池用充電器の問題点として、過放電後
放置された鉛電池（以下「過放電放置電池」という）に
対する充電性ある。これは、過放電放置電池の内部抵抗
が高いため、充電電流が流れにくい事によるものであ
る。この問題点を解決するための方法として、過放電放
置電池に対し通常とは逆方向の電流を流し（以下「逆充
電」という）た後、通常の充電を行なう方法がある。2. Description of the Related Art Conventionally, a problem of a lead storage battery charger is chargeability for a lead battery left over after over-discharge (hereinafter referred to as "over-discharge left-over battery"). This is because the charging resistance is difficult to flow because the internal resistance of the over-discharged battery is high. As a method for solving this problem, there is a method in which a current in the reverse direction to the normal direction is applied to the over-discharged battery (hereinafter referred to as "reverse charging"), and then the normal charging is performed.
発明が解決しようとする問題点 上記の充電方法を充電器に適用した場合、過放電放置電
池の充電時に問題ないが、通常放電後の電池を逆充電し
た場合、通常放電後の電池の内部抵抗が低いため過大な
逆充電電流（放電電流）が流れ、充電器を破壊させる可
能性があるという問題を有している。Problems to be Solved by the Invention When the above charging method is applied to a charger, there is no problem when charging an over-discharged battery, but when the battery after normal discharging is reversely charged, the internal resistance of the battery after normal discharging Has a problem that an excessive reverse charging current (discharging current) may flow and damage the charger.
問題点を解決するための手段 本発明は、上記の問題点を解決して、通常放置後の電池
に対して過大な逆充電電流を流す事なく充電し、かつ過
放電放置電池に対しては逆充電を行なった後通常の充電
を行なうもので、充電開始後、通常の充電より小なる逆
充電電流を流し、この時点での電圧が一定値以上ならば
通常の充電を行ない、一定値以下ならば逆充電電流を流
した後通常の充電を行なう手段を備える事を特徴とする
ものである。Means for Solving the Problems The present invention solves the above problems, and normally charges a battery after leaving it without flowing an excessive reverse charge current, and Reverse charging is followed by normal charging.After charging is started, a reverse charging current smaller than that of normal charging is applied.If the voltage at this point is above a certain level, normal charging is performed and below a certain level. In that case, it is characterized in that it is provided with means for carrying out normal charging after flowing a reverse charging current.
作用 本発明は上記の特徴を有する事により、通常放電後の電
池に対しては過大な逆充電電流を流す異なく充電し、か
つ過放電放置電池に対しては逆充電を行なった後通常の
充電を行なう事が可能である。本発明では、過放電放置
電池には、充電方向に電流が流れにくいが、放電方向に
は流れやすいという特性を応用し、小さい逆充電電流を
流した時の逆充電電圧は、通常放電後の電池の方が過放
電放置電池の方が高くなる事を利用し、過放電放置電池
のみ逆充電を行なうものである。Action The present invention has the above-mentioned characteristics, and normally charges a battery after discharging without excessive flow of a reverse charging current, and normally charges a battery after over-discharging after reverse charging. It is possible to charge. In the present invention, the overcharged battery is applied with the characteristic that the current does not easily flow in the charging direction, but the current easily flows in the discharging direction, and the reverse charging voltage when a small reverse charging current is applied is normally Utilizing the fact that the battery is higher in the over-discharged battery, only the over-discharged battery is reverse-charged.
実施例 本発明の一実施例を第１図を用いて説明する。Embodiment An embodiment of the present invention will be described with reference to FIG.
直流電源部１の出力は、抵抗３が並列に入る電流制御部
４、リレーの接点９、ダイオード10を通じて密閉形鉛蓄
電池１１に接続される。制御部５は電流制御部４、リレ
ーのコイル６を制御する部分で第１タイマ２、第２タイ
マ８、電圧検出部７を入力とする。第１タイマ２、第２
タイマ８は充電開始と共に動作し、制御部５は、第１タ
イマ２の動作中はリレーのコイル６に電流を流しリレー
の接点９を切り換え、抵抗３を通じて微小電流による逆
充電を行なう。この微小電流による逆充電の間、充電電
圧が一定値以上に達している事を電圧検出部７により検
出した場合、（通常放電後の電池と判断され）第１タイ
マ２がＯＦＦになると、制御部５はリレーの接点９を切
り換えると共に電流制御部４を制御し通常の充電を行な
う。微小電流による逆充電の間、充電電圧が一定値以下
の場合は、過放電放置電池と判断され、第１タイマ２が
ＯＦＦとなると、制御部５は第２タイマ８がＯＦＦとな
るまでリレーの接点９を逆充電方向のに保つと共に電流
制御部４を制御し逆充電電流を流す。第２タイマ８がＯ
ＦＦとなると、リレーの接点９が切り換えられ、電流制
御部４を制御し通常充電に入る。The output of the DC power supply unit 1 is connected to a sealed lead-acid battery 11 through a current control unit 4 into which a resistor 3 enters in parallel, a relay contact 9, and a diode 10. The controller 5 controls the current controller 4 and the coil 6 of the relay, and receives the first timer 2, the second timer 8 and the voltage detector 7 as inputs. First timer 2, second
The timer 8 operates together with the start of charging, and while the first timer 2 is operating, the control unit 5 causes a current to flow through the coil 6 of the relay to switch the contact 9 of the relay, and performs reverse charging by a minute current through the resistor 3. When the voltage detection unit 7 detects that the charging voltage has reached a certain value or more during the reverse charging by the minute current, when the first timer 2 is turned off (judged as a battery after normal discharging), the control is performed. The unit 5 switches the contact 9 of the relay and controls the current control unit 4 to perform normal charging. When the charging voltage is equal to or lower than a certain value during the reverse charging by the minute current, it is determined that the battery is an over-discharged battery, and when the first timer 2 is turned off, the control unit 5 controls the relay until the second timer 8 is turned off. The contact 9 is maintained in the reverse charging direction and the current control unit 4 is controlled to flow the reverse charging current. Second timer 8 is O
When it becomes FF, the contact 9 of the relay is switched, the current control unit 4 is controlled, and normal charging is started.
このような動作で通常放電後の電池、及び過放電放置電
池の回復が可能である。By such an operation, it is possible to recover the battery after the normal discharge and the battery left over-discharged.
過放電放置電池（密閉形鉛蓄電池４Ｖ、４Ah、内部抵抗
３００Ω）を充電した場合の充電特性を第２図に示す。
第１タイマの設定時間は５（ｓｅｃ）、第２タイマの設
定時間は６０（min）検出電圧は２（Ｖ）である。この
ように過放電放置電池の充電が可能であった。Fig. 2 shows the charging characteristics when an over-discharged battery (sealed lead-acid battery 4V, 4Ah, internal resistance 300Ω) was charged.
The set time of the first timer is 5 (sec), the set time of the second timer is 60 (min), and the detection voltage is 2 (V). In this way, it was possible to charge the overcharged battery.
発明の効果 上述のように、本発明では過放電放置電池と通常放電後
の電池を、微小電流による逆充電時の電圧により判断し
逆充電を行なっている。EFFECTS OF THE INVENTION As described above, in the present invention, reverse charging is performed by judging the overcharged battery and the battery after normal discharge by the voltage at the time of reverse charging by a minute current.
このため、過大な逆充電電流を流す事なく過放電放置電
池、通常放電後の電池共に回復可能な点、工業的価値極
めて大なるものである。Therefore, both the over-discharged battery and the battery after normal discharge can be recovered without flowing an excessive reverse charging current, which is extremely great in industrial value.
第１図は本発明の一実施例を示す回路図、第２図は本発
明充電器を用いた場合の充電特性曲線図である。 １は直流電源部、２は第１タイマ、４は電流制御部、５
は制御部、７は電圧検出部、８は第２タイマ、１１は密
閉形鉛蓄電池FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a charging characteristic curve diagram when the charger of the present invention is used. 1 is a DC power supply unit, 2 is a first timer, 4 is a current control unit, 5
Is a control unit, 7 is a voltage detection unit, 8 is a second timer, and 11 is a sealed lead acid battery.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小牧 昭夫 東京都新宿区西新宿２丁目１番１号 新神 戸電機株式会社内 審査官 鈴木 朗 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Komaki 2-1-1, Nishishinjuku, Shinjuku-ku, Tokyo Shin-Kindo Electric Co., Ltd. Examiner Akira Suzuki
Claims (1)
つ通常の充電とは逆方向の電流を流し、この時点での電
圧が一定値以上ならば通常の充電を行ない、一定値以下
ならば、通常とは逆方向の電流を流した後通常の充電に
入る手段を備える事を特徴とする充電器。1. After the start of charging, a current smaller than the normal charging current and in the opposite direction to the normal charging is applied. If the voltage at this point is a certain value or more, the normal charging is performed, and if it is less than the certain value. For example, a charger characterized in that it is provided with a means for starting normal charging after passing a current in a direction opposite to normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62100723A JPH0618465B2 (en) | 1987-04-23 | 1987-04-23 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62100723A JPH0618465B2 (en) | 1987-04-23 | 1987-04-23 | Charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63268439A JPS63268439A (en) | 1988-11-07 |
| JPH0618465B2 true JPH0618465B2 (en) | 1994-03-09 |
Family
ID=14281547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62100723A Expired - Fee Related JPH0618465B2 (en) | 1987-04-23 | 1987-04-23 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618465B2 (en) |
-
1987
- 1987-04-23 JP JP62100723A patent/JPH0618465B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63268439A (en) | 1988-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |