JPH08171360A - Method for displaying remaining capacity of battery - Google Patents
Method for displaying remaining capacity of batteryInfo
- Publication number
- JPH08171360A JPH08171360A JP31312994A JP31312994A JPH08171360A JP H08171360 A JPH08171360 A JP H08171360A JP 31312994 A JP31312994 A JP 31312994A JP 31312994 A JP31312994 A JP 31312994A JP H08171360 A JPH08171360 A JP H08171360A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- remaining capacity
- battery set
- displaying
- charged
- 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.)
- Granted
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電池の残容量状態を表示
する電池の残容量表示方法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 remaining capacity display method for displaying a battery remaining capacity state.
【０００２】[0002]
【従来の技術】充電可能な電池を用いた機器として電動
工具等があり、このような電動工具をねじ締めや穴あけ
等に使用した場合には実使用電流が数Ａ〜数十Ａと大き
くなる。このために電池の１充電当たりの連続使用時間
は数分〜数十分と短いものとなるが、ねじ締めや穴あけ
等の作業に要する電動工具使用時間は数秒〜数十秒と短
時間であるため実際の作業には支障がない。しかし、作
業を効率的に行う点では電池容量切れによる作業中断は
好ましくない。そこで、電池の残容量状態を使用者に伝
える電池の残容量表示装置が必要となる。2. Description of the Related Art There is an electric tool or the like as a device using a rechargeable battery, and when such an electric tool is used for screw tightening, drilling, etc., the actual operating current is as large as several A to several tens A. . For this reason, the continuous use time per charge of the battery is as short as a few minutes to a few tens of minutes, but the power tool use time required for work such as screw tightening and drilling is as short as a few seconds to a few tens of seconds. Therefore, it does not hinder the actual work. However, interruption of work due to exhaustion of battery capacity is not preferable from the viewpoint of efficient work. Therefore, a battery remaining capacity display device that informs the user of the remaining capacity of the battery is required.
【０００３】電池の残容量状態は常時表示していること
が使い勝手の点で好ましいが、ＬＥＤ表示の場合では数
ｍＡ〜数十ｍＡの電流を通電する必要があるために、常
時電池の残容量状態を表示しようとすると数日〜数十日
で電池の容量がなくなってしまうという問題がある。そ
こで、従来は電源スイッチをオフした後ＬＥＤを一定時
間のみ点灯させる方式、電池に設けたスイッチをオンし
た時のみ点灯させる方式、スイッチをオンした後一定時
間のみ点灯させる方式等を採用し消費電力の節減を行っ
ていた。It is preferable that the state of charge of the battery is always displayed from the viewpoint of usability, but in the case of LED display, it is necessary to supply a current of several mA to several tens of mA, and therefore the state of charge of the battery is always maintained. There is a problem that the battery capacity will be exhausted within a few days to a few tens of days when the status is displayed. Therefore, conventionally, the LED power is turned on after turning off the power switch for a certain time, the light is turned on only when a switch provided on the battery is turned on, and the light is turned on for a certain time after turning on the power. Was saving.
【０００４】[0004]
【発明が解決しようとする課題】上記したような電池の
残容量表示方法では、消費電力の節減という点に関して
は有効であるが、使用者が電池の残容量の確認をする場
合にスイッチ操作の手間が必要となるので使い勝手が悪
いという欠点があった。本発明の目的は、上記欠点を解
決し、消費電力の節減を行うと共にスイッチ操作等の手
間が必要でない使い勝手の良い電池の残容量表示方法を
提供することである。The battery remaining capacity display method as described above is effective in terms of saving power consumption, but when the user confirms the battery remaining capacity, a switch operation is performed. Since it requires time and effort, it has the drawback of being inconvenient to use. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks, to save power consumption, and to provide a user-friendly method of displaying a remaining capacity of a battery which does not require a switch operation and the like.
【０００５】[0005]
【課題を解決するための手段】上記目的は、電池が充放
電をしている時には電池の残容量に相当する数のＬＥＤ
を点灯させ、電池が充放電をしていない時には電池の残
容量を表示する最上位のＬＥＤのみを間欠点灯させるこ
とにより達成される。The above-mentioned object is to provide a number of LEDs which corresponds to the remaining capacity of the battery when the battery is being charged and discharged.
Is lit, and when the battery is not being charged or discharged, only the top LED that displays the remaining capacity of the battery is intermittently lit.
【０００６】[0006]
【作用】上記のような電池の残容量表示方法は、電池が
充放電をしている時には電池の残容量に相当する数のＬ
ＥＤが点灯し、電池が充放電をしていない時には電池の
残容量を表示する最上位のＬＥＤのみが間欠点灯するの
で、常に使用者は電池の残容量状態を確認することがで
きる。The above-described method for displaying the remaining capacity of the battery is such that when the battery is being charged / discharged, the number of L's corresponding to the remaining capacity of the battery is reduced.
When the ED is turned on and the battery is not being charged or discharged, only the uppermost LED indicating the remaining capacity of the battery is intermittently turned on, so that the user can always check the remaining capacity of the battery.
【０００７】[0007]
【実施例】図１は本発明電池の残容量表示方法を採用し
た電池パックの一実施例を示す回路図である。１は電池
パックであって、複数の再充電可能な電池を直列に接続
した電池組２、電池組２に流れる充電電流または放電電
流を検出し電圧に変換する電流検出手段３、電流検出手
段３の出力をもとに電池の残容量を演算及び記憶する演
算手段４、演算手段４の演算結果すなわち電池の残容量
を表示する表示手段５等から構成される。表示手段５
は、図３、図４に示す如く複数個実施例では５個のＬＥ
Ｄから構成され、電池組２が充放電をしている時には電
池組２の残容量に相当する数のＬＥＤが点灯し、電池組
２が充放電をしていない時には電池組２の残容量を表示
する最上位のＬＥＤのみが間欠点灯する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a circuit diagram showing an embodiment of a battery pack adopting the battery remaining capacity display method of the present invention. A battery pack 1 includes a battery set 2 in which a plurality of rechargeable batteries are connected in series, a current detection unit 3 that detects a charging current or a discharging current flowing in the battery set 2 and converts it into a voltage, and a current detection unit 3 The calculation means 4 calculates and stores the remaining capacity of the battery on the basis of the output of, and the display means 5 for displaying the calculation result of the calculation means 4, that is, the remaining capacity of the battery. Display means 5
Is 5 LEs in the plural embodiment as shown in FIG. 3 and FIG.
When the battery group 2 is charged and discharged, the LEDs corresponding to the remaining capacity of the battery group 2 are turned on, and when the battery group 2 is not charged and discharged, the remaining capacity of the battery group 2 is displayed. Only the highest LED to be displayed is intermittently lit.
【０００８】次に図１の回路図及び図２のフローチャー
トを用いて動作の説明をする。演算手段４はタイマをス
タートさせ（ステップ１００）、電池組２が通電中かど
うかを判別し（ステップ１０１）、電池組２が通電中す
なわち充放電をしている時には電池組２の残容量に相当
する数のＬＥＤが点灯し、残容量の増減に応じて点灯数
は増減を行う（ステップ１０２）。また電池組２が通電
中でない時すなわち充放電をしていない時には電池組２
の残容量を表示する最上位のＬＥＤのみが間欠点灯する
（ステップ１０３）。ここでの間欠点灯は例えば０.２
秒点灯→２秒消灯→０.２秒点灯→…という点滅を行う
動作をいう。以後、ステップ１０１〜ステップ１０３を
繰返す。一方、ステップ１００にもとづくタイマ割込動
作処理においては、電池組２に流出入する電流を検出し
（ステップ２００）、電池組２の残容量を演算及び記憶
し（ステップ２０１）、タイマを再スタートさせる（ス
テップ２０２）。なお、図３に電池組２が充放電をして
いる時のＬＥＤ点灯状態、図４に電池組２が充放電をし
ていない時のＬＥＤ間欠点灯状態を示す。Next, the operation will be described with reference to the circuit diagram of FIG. 1 and the flowchart of FIG. The calculation means 4 starts a timer (step 100) and determines whether the battery group 2 is energized (step 101). When the battery group 2 is energized, that is, charged and discharged, the remaining capacity of the battery group 2 is determined. A corresponding number of LEDs are turned on, and the number of lights is increased or decreased according to the increase or decrease of the remaining capacity (step 102). When the battery set 2 is not energized, that is, when the battery set 2 is not charged or discharged, the battery set 2
Only the uppermost LED that displays the remaining capacity of is turned on intermittently (step 103). The intermittent lighting here is 0.2, for example.
It means the operation of blinking for 2 seconds, off for 2 seconds, then for 0.2 seconds, and so on. After that, steps 101 to 103 are repeated. On the other hand, in the timer interrupt operation process based on step 100, the current flowing in and out of the battery group 2 is detected (step 200), the remaining capacity of the battery group 2 is calculated and stored (step 201), and the timer is restarted. (Step 202). 3 shows the LED lighting state when the battery group 2 is charging and discharging, and FIG. 4 shows the LED intermittent lighting state when the battery group 2 is not charging and discharging.
【０００９】[0009]
【発明の効果】本発明によれば、電池が充放電をしてい
る時には電池の残容量に相当する数のＬＥＤが点灯し、
電池が充放電をしていない時には電池の残容量表示の最
上位のＬＥＤのみが間欠点灯するので、消費電力の節減
が行われると共に使用者が常に電池の残容量状態を確認
することができる。According to the present invention, when the battery is being charged or discharged, as many LEDs as the remaining capacity of the battery are lit,
When the battery is not being charged or discharged, only the uppermost LED for indicating the remaining capacity of the battery is lit intermittently, so that power consumption is saved and the user can always check the remaining capacity state of the battery.
【図１】 本発明電池の残容量表示方法の一実施例を示
す回路図。FIG. 1 is a circuit diagram showing an embodiment of a method for displaying the remaining capacity of a battery of the present invention.
【図２】 本発明電池の残容量表示方法の一実施例を示
すフローチャート。FIG. 2 is a flowchart showing an embodiment of a battery remaining capacity display method of the present invention.
【図３】 電池が充放電をしている時のＬＥＤ点灯状態
を示す図。FIG. 3 is a diagram showing an LED lighting state when the battery is being charged and discharged.
【図４】 電池が充放電をしていない時のＬＥＤ間欠点
灯状態を示す図。FIG. 4 is a diagram showing an LED intermittent lighting state when the battery is not being charged or discharged.
１は電池パック、２は電池組、３は電流検出手段、４は
演算手段、５は表示手段である。Reference numeral 1 is a battery pack, 2 is a battery group, 3 is current detection means, 4 is calculation means, and 5 is display means.
Claims (1)
出手段と、該電流検出手段の出力をもとに電池の残容量
を演算及び記憶する演算手段と、該演算手段の演算結果
すなわち電池の残容量を表示する表示手段とを有する電
池の残容量表示装置において、 電池が充放電をしている時には電池の残容量に相当する
数のＬＥＤを点灯させ、電池が充放電をしていない時に
は電池の残容量を表示する最上位のＬＥＤのみを間欠点
灯させるようにしたことを特徴とする電池の残容量表示
方法。1. A current detecting means for detecting a current flowing into and out of a battery, a calculating means for calculating and storing a remaining capacity of the battery based on an output of the current detecting means, and a calculation result of the calculating means, that is, a battery. In a battery remaining capacity display device having a display means for displaying the remaining capacity of, the number of LEDs corresponding to the remaining capacity of the battery is turned on when the battery is charging and discharging, and the battery is not charging or discharging. A method of displaying the remaining capacity of a battery, wherein only the topmost LED that displays the remaining capacity of the battery is sometimes turned on intermittently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31312994A JP3139311B2 (en) | 1994-12-16 | 1994-12-16 | How to display the remaining battery capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31312994A JP3139311B2 (en) | 1994-12-16 | 1994-12-16 | How to display the remaining battery capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08171360A true JPH08171360A (en) | 1996-07-02 |
| JP3139311B2 JP3139311B2 (en) | 2001-02-26 |
Family
ID=18037465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31312994A Expired - Fee Related JP3139311B2 (en) | 1994-12-16 | 1994-12-16 | How to display the remaining battery capacity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3139311B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440613C (en) * | 2002-12-10 | 2008-12-03 | 索尼公司 | Secondary battery with display function and its method |
| JP2011038824A (en) * | 2009-08-07 | 2011-02-24 | Hitachi Koki Co Ltd | Battery pack and power tool |
| CN104467785A (en) * | 2014-11-08 | 2015-03-25 | 钟明华 | Hollow current collection and energy storage light controller |
| EP2892009A1 (en) | 2014-01-07 | 2015-07-08 | Ricoh Company, Ltd. | Information processing apparatus and control method |
-
1994
- 1994-12-16 JP JP31312994A patent/JP3139311B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440613C (en) * | 2002-12-10 | 2008-12-03 | 索尼公司 | Secondary battery with display function and its method |
| JP2011038824A (en) * | 2009-08-07 | 2011-02-24 | Hitachi Koki Co Ltd | Battery pack and power tool |
| EP2892009A1 (en) | 2014-01-07 | 2015-07-08 | Ricoh Company, Ltd. | Information processing apparatus and control method |
| JP2015128846A (en) * | 2014-01-07 | 2015-07-16 | 株式会社リコー | Information processing apparatus and control method |
| US9203992B2 (en) | 2014-01-07 | 2015-12-01 | Ricoh Company, Ltd. | Information processing apparatus and control method |
| CN104467785A (en) * | 2014-11-08 | 2015-03-25 | 钟明华 | Hollow current collection and energy storage light controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3139311B2 (en) | 2001-02-26 |
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