JPS602015A - Battery type electric device - Google Patents
Battery type electric deviceInfo
- Publication number
- JPS602015A JPS602015A JP58106887A JP10688783A JPS602015A JP S602015 A JPS602015 A JP S602015A JP 58106887 A JP58106887 A JP 58106887A JP 10688783 A JP10688783 A JP 10688783A JP S602015 A JPS602015 A JP S602015A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- voltage
- remaining capacity
- display means
- load
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔技術分野〕 本発明は電池式電気機器に関するものである。[Detailed description of the invention] 〔Technical field〕 The present invention relates to battery-powered electrical equipment.
一般に、電池（蓄電池を含む）を電源として負荷を駆動
するようにしたこの種の電池式電気機器において、１回
の電池交換あるいは充電によって使用できる電気量が限
られており、残容量力ぷ少なくなれば電池交換あるいは
充電を行なわなければならないものである。したがって
、使用者は残容量がどの程度になっているのか、あるい
は電気量が適正に消費されているか（誤った使い方によ
って過負荷状態になっていないか）を表示することを望
んでいる。従来、電池の残容量を表示する残容量表示手
段として第１図に示すようなもの７５；あつた。すなわ
ち、負荷（ｌに電流が流れることにより電池（２）の端
子電圧■２を分圧した電圧？２７５’基準電圧ＶＳより
も低下するかどうかを電圧比較ｍ ｔ５）にて判別し、
低下したとき表示器（７）を作動させて残容量が少なく
なったことを表示するものである。図中（３）は電圧分
圧器、（４）は基準電圧発生回路、（６）は増巾回路、
（８）は定電圧電源、（ｌＯ）は電源スィッチである。In general, in this type of battery-powered electrical equipment that uses batteries (including storage batteries) as a power source to drive loads, the amount of electricity that can be used each time the battery is replaced or charged is limited, and the remaining capacity is low. If this happens, you will have to replace or charge the battery. Therefore, the user wants to be able to display the remaining capacity or whether the amount of electricity is being consumed appropriately (whether the battery is overloaded due to incorrect usage). Conventionally, a remaining capacity display means 75 shown in FIG. 1 has been used to display the remaining capacity of a battery. That is, it is determined by voltage comparison m t5 whether the voltage obtained by dividing the terminal voltage 2 of the battery (2) ?275' is lower than the reference voltage VS due to the current flowing through the load (l),
When the remaining capacity is low, the indicator (7) is activated to indicate that the remaining capacity is low. In the figure, (3) is a voltage divider, (4) is a reference voltage generation circuit, (6) is an amplification circuit,
(8) is a constant voltage power supply, and (lO) is a power switch.
なお、負荷電流が使用状態によって変化する丸鋸駆動用
の七−夕のような負荷（ｌの場合には、電池（２）の端
子電圧ｖ２も変動するととＫなって残容量の有無を正確
に判別することができないことになるが、このような場
合には、第２図に示すように所定の抵抗値を有する抵抗
よりなる定負荷（ｌａ）を負荷（１）と並列的に設け、
残容量チェック用スイッチを兼ねる電源スィッチ（１０
１’を負荷側（ｂ側）に切換える前に定負荷側（ａ側）
に切換えて残容量を判別するようにすれば良い。In addition, in the case of a load such as Tanabata for driving a circular saw where the load current changes depending on the usage condition (l), if the terminal voltage v2 of the battery (2) also changes, it will become K, making it difficult to accurately determine the presence or absence of remaining capacity. However, in such a case, as shown in Fig. 2, a constant load (la) made of a resistor having a predetermined resistance value is provided in parallel with the load (1),
The power switch (10
1' to the constant load side (a side) before switching to the load side (b side)
The remaining capacity can be determined by switching to .
一方、電気量が適正に消費されているかどうかを表示す
る過負荷表示手段としては第８図に示すようなものがあ
った。すなわち、負荷（１）に直列接続された限流器０
υの両端電圧Ｖｉによって負荷（１）に流れる電流を検
出し、限流器θυの両端電圧Ｖｉが基準電圧Ｖｓ′より
も大きいかどうかを電圧比較器（５）にて判別し、大き
くなったとき表示器（７）にて表示するようにしたもの
があった。On the other hand, as an overload display means for displaying whether or not the amount of electricity is being consumed properly, there is one shown in FIG. In other words, current limiter 0 connected in series with load (1)
The current flowing through the load (1) is detected by the voltage Vi across υ, and the voltage comparator (5) determines whether the voltage Vi across the current limiter θυ is larger than the reference voltage Vs'. There was a device that displayed the time on an indicator (7).
ところで、前述した使用者の要望を満足させるには、上
記残容量表示手段および過負荷表示手段を電池式電気機
器に組込めば良いことになるが、これ等の従来例にあっ
ては残容量の検出を定負荷時の電池（２）の端子電圧Ｖ
２に基いて行ない、過負荷の検出を実負荷時の限流器０
υの両端電圧Ｖｉに基いて行なっており、それぞれ異っ
た検出手段を用いているので、構成が複雑（例えば検出
手段、電圧比較手段がそれぞれ必要）になり、コストア
ップになるという問題があるとともに、過負荷検出用の
限流器αυによるエネルｆ−ｏスが常に発生するという
問題があった。By the way, in order to satisfy the above-mentioned user's request, it would be sufficient to incorporate the above-mentioned remaining capacity display means and overload display means into battery-powered electrical equipment, but in these conventional examples, the remaining capacity Detection of battery (2) terminal voltage V at constant load
2, overload detection is performed using current limiter 0 at actual load.
Since this is performed based on the voltage Vi across υ and different detection means are used, the configuration becomes complicated (for example, a detection means and a voltage comparison means are each required), leading to an increase in cost. In addition, there is a problem in that energy fo is constantly generated by the current limiter αυ for overload detection.
゛〔発明の目的〕
本発明は上記の点に鑑みて為されたものであり、その目
的とするところは、残容量表示手段および過負荷表示手
段を簡単な構成で実現することができ、しかもエネル千
−ロスの少ない電池式電気機器を提供することにある。[Object of the Invention] The present invention has been made in view of the above points, and its object is to realize a remaining capacity display means and an overload display means with a simple configuration, and to The object of the present invention is to provide battery-powered electrical equipment with less energy loss.
（実施例１）
第４図は本発明一実施例を示すもので、図中、（４υは
電池（２）の端子電圧■２に基いて残容量を判別して表
示器（７υに表示する残量表示手段（Ａ）の基準電圧Ｖ
ｓ、を発生する基準電圧発生回路、（４２）は電池（２
）の端子電圧ｖ２に基いて過負荷状態かどうかを判別し
て表示器（７□）に表示する過負荷表示手段（Ｂ）の基
準電圧Ｖ Ｓ ２を発生する基準電圧発生回路、（１０
ａ ）〜（１０ｄ）は画表示手段を切換える表示切換手
段（Ｃ）を形成する切換スイッチであり、切換スイッチ
（１０’ａ）〜（１０ｄ）は１個の操作子にて連動して
切換えられるようになっている。図中（９）は遅延回路
である。なお、他の構成は第２図従来例と同一である。(Embodiment 1) Figure 4 shows an embodiment of the present invention. Reference voltage V of remaining amount display means (A)
s, a reference voltage generation circuit (42) is a battery (2
), a reference voltage generation circuit (10
a) to (10d) are changeover switches forming a display switching means (C) for switching the image display means, and the changeover switches (10'a) to (10d) are switched in conjunction with one operator. It looks like this. In the figure, (9) is a delay circuit. Note that the other configurations are the same as the conventional example shown in FIG.
以下、実施例１の動作について説明する。いま、電源ス
ィッチを兼ねる切換スイッチ（１０ａ）〜（１０ｄ ）
をオフ側（ＯＦＦ側）から残容量表示手段側（ｂ側）に
切換えると、電圧比較回路（５）の基準入力端子には基
準電圧発生回路（４１）から出力される基準電圧Ｖｓ、
が印加されるとともに、定負荷（ｌａ）が接続された電
池（２）の端子電圧Ｖ２を電圧分圧器（３）にて分圧し
た分圧°電圧Ｖｆが電圧比較回路（６）の比較入力端子
に印加され、分圧電圧ν５が基準電圧ＶＳ、よりも低下
したとき電圧比較器（５）から表示作動信号が出力され
て増巾回路（６）および遅延回路（９）を介して表示器
（７１）が作動され、電池（２）の残容量が所定値以下
になっていることを表示する。ここに遅延回路（９）は
表示作動信号を切換スイッチ（１０ａ ）〜（１０ｄ）
が−オフ側（ＯＦＦ側）に切換えられるまで引延ばすよ
うになっており、切換スイッチ（１０ａ）〜（１０ｄ）
が過負荷表示側（ｂ側）に切換えられた場合にあっても
表示器（７υを作動し続けて残容量が少なくなっている
ことを表示する、。このとき、基準電圧発生回路（４□
）は基準電圧ＶＳ２を発生しない。The operation of the first embodiment will be explained below. Now, selector switches (10a) to (10d) that also serve as power switches
When switched from the off side (OFF side) to the remaining capacity display means side (b side), the reference input terminal of the voltage comparison circuit (5) receives the reference voltage Vs output from the reference voltage generation circuit (41),
is applied, and the voltage Vf obtained by dividing the terminal voltage V2 of the battery (2) to which a constant load (la) is connected by the voltage divider (3) is the comparison input of the voltage comparison circuit (6). When the divided voltage ν5 becomes lower than the reference voltage VS, a display activation signal is output from the voltage comparator (5) and sent to the display via the amplification circuit (6) and delay circuit (9). (71) is activated to display that the remaining capacity of the battery (2) is below a predetermined value. Here, the delay circuit (9) switches the display activation signal through switches (10a) to (10d).
is extended until it is switched to the -OFF side (OFF side), and the selector switches (10a) to (10d)
Even if the indicator (7υ) is switched to the overload display side (b side), the indicator (7υ) continues to operate to indicate that the remaining capacity is low.At this time, the reference voltage generation circuit (4□
) does not generate the reference voltage VS2.
次に、定負荷時の電池（２）の端子電圧■２が大きく残
容量が所定値以上ある場合において、切換スイッチ（１
ｏａ）〜（１０ｄ）を過負荷表示手段側（ｂ側）に切換
えると、電圧比較器（［ｉ）の基準入力端子には基準電
圧発生回路（４□）から出力される基準電圧ｖＳ２が印
加されるとともに、丸鋸駆動用上−夕よりなる負荷ｆｌ
）が接続された電池（２）の端子電圧Ｖ２の分圧電圧Ｖ
（が電圧比較回路（５）の比較入力端子に印加され、分
圧電圧ｖ６が基準電圧ＶＳｚよりも低下したとき電圧比
較回路（５）から表示作動信号が出力されて増巾回路（
６）を介して表示器（７２）が作動され、過負荷状態に
なっていることを表示する。以上のように、本発明にあ
っては残容量表示手段（Ａ）の残容量の検出および過負
荷表示手段（Ｂ）の過負荷状態の検出をいずれも電池（
２）の端子電圧ｖ２に基いて行なっており、画表示手段
（Ａ） （Ｂ）の検出手段および電圧比軸手段を兼用す
ることができ、構成が簡単にできるようになっている。Next, when the terminal voltage (■2) of the battery (2) under constant load is large and the remaining capacity is above a predetermined value, select switch (1).
When oa) to (10d) are switched to the overload display means side (b side), the reference voltage vS2 output from the reference voltage generation circuit (4□) is applied to the reference input terminal of the voltage comparator ([i). At the same time, the load fl consisting of the upper and lower parts for driving the circular saw is
) is connected to the terminal voltage V2 of the battery (2), which is the divided voltage V
( is applied to the comparison input terminal of the voltage comparison circuit (5), and when the divided voltage v6 becomes lower than the reference voltage VSz, a display activation signal is output from the voltage comparison circuit (5) and the amplification circuit (
6) the indicator (72) is activated to indicate that an overload condition is present. As described above, in the present invention, the remaining capacity of the remaining capacity display means (A) and the overload state of the overload display means (B) are both detected by the battery (
This is carried out based on the terminal voltage v2 of 2), and the detection means and voltage ratio axis means of the image display means (A) and (B) can also be used, and the configuration can be simplified.
また、過負荷検出手段として第３図従来例のように限流
器αυを用いていないので、エネルギーロスが発生する
ことがなく、電池（２）の電気量を有効に利用すること
ができるようになっている。In addition, since the current limiter αυ is not used as an overload detection means as in the conventional example shown in Figure 3, energy loss does not occur and the amount of electricity in the battery (2) can be used effectively. It has become.
（実施例２）
第６図は他の実施例を示すもので、負荷電流ＩＬの交流
成分を変流器θカを用いて検出し、この交流成分が所定
値以上のとき、自動的に切換スイッチ（１０ｂ’）（１
０ｃつを過負荷表示手段側（ｂ側）に切換えるスイッチ
制御回路α３を設けたものである。なお、負荷ｆ１）は
丸鋸駆動用七−夕のように空転時（軽負荷運転時）にお
いて、負荷電流Ｉｔ、が小さい上、交流成分も小さく、
一方、切断時（重負荷運転時）において負荷電流ＬＬが
大きい上、交流成分も大きいものである。(Embodiment 2) Fig. 6 shows another embodiment, in which the alternating current component of the load current IL is detected using a current transformer θ, and when this alternating current component exceeds a predetermined value, switching is automatically performed. Switch (10b') (1
A switch control circuit α3 is provided for switching 0c to the overload display means side (b side). In addition, when the load f1) is idling (during light load operation) like Tanabata for driving a circular saw, the load current It is small and the alternating current component is also small.
On the other hand, during disconnection (during heavy load operation), the load current LL is large and the alternating current component is also large.
以下、実施例の動作について説明する。い甘、電池＋２
＋の残容量が大きく、しかも適正使用されている場合に
おいて、負荷Ｈに流れる負荷電流ＩＬおよび電池（２）
の端子電圧ｖ２は空転時および切断時において第８図（
ａ）に示すように変化する。ここに空転時における負荷
電流ＩＬの交流成分（変流器Ｑ２の出力）は切断時にお
ける負荷電流Ｉｔ、の交流成分よりも大巾に小さいので
、スイッチ制御回路１ｌｌＬ３の動作レベルを適尚（例
えば空転時および切断時の交流成分の中間値）に設定す
ることにより、切断時においてのみ切換スイッチ（１０
ｂ）’（１０ｃ）’を過負荷表示手段側（ｂ側）に切換
えることができるようになっている。したがって、電源
スィッチ（］０）が投入された直後の空転時において切
換スイッチ（１０ｂ）’（１０ｃ）’は残容量表示手段
側（ａ側）に切換えられており、空転状態の負荷（１）
を定負荷と見なして電池（２）の端子電圧ｖ２の分圧電
圧Ｖ≦と基準電圧とを比較し、残容量が所定値以下にな
っているかどうかを判別して表示器（７□）に表示する
。次に切断時において、切換スイッチ（１０ｂ）’ （
１０ｃ）’はスイッチ制御回路ａ４にて過負荷表示手段
側（ｂ側）に切換えられ、電池（２）の端子電圧■、の
分圧電圧Ｖ′２と基準電圧ＶＳｔとを比較して過負荷状
態かどうかを判別して表示器（７□）に表示する。第８
図（ｂ）は電池（２）の残容量が所定値よりも少なくな
った場合の負荷電流ＩＬおよび電池（２）の端子電圧Ｖ
２を示す図であり、空転時の電池（２）の端子電圧Ｖ１
１が残容量が十分ある場合（第８図ａ）に比べて低下し
て（１１，３Ｖ →１０．９Ｖ）いる。しだがって、基
準電圧ＶＳ１を端子電圧ｖ２＝１１Ｖに対応する値に設
定しておけば残容量が所定値よりも少なくなったことを
表示器（７１）にて表示できることになる。一方、第８
図（Ｃ）は不適正な使用により電池（２）が過負荷状態
になった場合の負荷電流ＩＬおよび電池（２）の端子電
圧Ｖ２を示す図であり、切断時の電池（２）の端子電圧
ｖ２の低下が著しく（１０，５Ｖ→９．ＯＶ）なってい
る。したがって、基準電圧Ｖｓ２を端子電圧Ｖ２＝９．
３Ｖに力応する値に設定しておけば過負荷状態となった
ことを表示器（７２）にて表示できることになる。The operation of the embodiment will be described below. Sweet, battery +2
When the remaining capacity of + is large and it is being used properly, the load current IL flowing to load H and battery (2)
The terminal voltage v2 of is shown in Fig. 8 (
Changes as shown in a). Here, since the AC component of the load current IL (output of the current transformer Q2) during idling is much smaller than the AC component of the load current It during disconnection, the operating level of the switch control circuit 1llL3 should be adjusted to an appropriate level (for example, By setting the changeover switch (10
b) '(10c)' can be switched to the overload display means side (b side). Therefore, during idling immediately after the power switch (]0) is turned on, the changeover switches (10b)'(10c)' are switched to the remaining capacity display means side (a side), and the idling load (1)
is assumed to be a constant load, and the divided voltage V≦ of the terminal voltage v2 of the battery (2) is compared with the reference voltage, and it is determined whether the remaining capacity is below a predetermined value, and the display (7□) is displayed. indicate. Next, when disconnecting, selector switch (10b)' (
10c)' is switched to the overload indicating means side (b side) by the switch control circuit a4, and the divided voltage V'2 of the terminal voltage (2) of the battery (2) is compared with the reference voltage VSt, and the overload is detected. The status is determined and displayed on the display (7□). 8th
Figure (b) shows the load current IL and the terminal voltage V of the battery (2) when the remaining capacity of the battery (2) is less than a predetermined value.
2, the terminal voltage V1 of the battery (2) during idling is
1 has decreased (from 11.3V to 10.9V) compared to when there is sufficient remaining capacity (Fig. 8a). Therefore, if the reference voltage VS1 is set to a value corresponding to the terminal voltage v2=11V, it is possible to display on the indicator (71) that the remaining capacity has become less than a predetermined value. On the other hand, the 8th
Figure (C) is a diagram showing the load current IL and the terminal voltage V2 of battery (2) when battery (2) is overloaded due to improper use, and shows the terminal voltage V2 of battery (2) when disconnected. The voltage v2 has significantly decreased (from 10.5V to 9.OV). Therefore, the reference voltage Vs2 is set to the terminal voltage V2=9.
If it is set to a value that responds to 3V, it will be possible to indicate on the display (72) that an overload condition has occurred.
本発明は上述のように、負荷に接続された電池の端子電
圧を第１の基準電圧と比較することにより残容量が所定
量よりも少なくなったことを判別して表示する残容量表
示手段と、該電池の端子電圧を第２の基準電圧と比較す
ることにより過負荷状態を判別して表示する過負荷表示
手段と、画表示手段を切換える表示切換手段とを具備し
たものであり、残容量表示手段の残容量の検出と、過負
荷表示手段の過負荷状態の検出とを共に電池の端子電圧
に基いて行なっているので、画表示手段の検出手段およ
び電圧比較手段を兼用することができ、構成を簡単にす
ることができ、しかも、第３図従来例のように限流器を
使用していないので、エネル甲−ロスを少なくすること
ができるという利点がある。As described above, the present invention provides a remaining capacity display means for determining and displaying that the remaining capacity has become less than a predetermined amount by comparing the terminal voltage of a battery connected to a load with a first reference voltage. , comprising an overload display means for determining and displaying an overload state by comparing the terminal voltage of the battery with a second reference voltage, and a display switching means for switching the image display means, and the remaining capacity. Since both the remaining capacity of the display means and the overload state of the overload display means are detected based on the terminal voltage of the battery, the image display means can serve both as a detection means and a voltage comparison means. , the structure can be simplified, and since no current limiter is used unlike the conventional example shown in FIG. 3, there is an advantage that energy loss can be reduced.
第１図乃至第３図は従来例の回路図、第４図は本発明一
実施例の回路図、第５図は同上のフローチャート、第６
図は他の実施例の回路図、第７図は同上のフローチャー
ト、第８図（ａ） （ｂ） （ｃ）は同上の動作説明図
である。
（１）は負荷、（２）は電池、（Ａ）は残容量表示手段
、（Ｂ）は過負荷表示手段、（Ｃ）は表示切換手段であ
る。
代理人 弁理士 石 １）長 七
第７図
第８図（ａ）1 to 3 are circuit diagrams of a conventional example, FIG. 4 is a circuit diagram of an embodiment of the present invention, FIG. 5 is a flowchart of the same, and FIG.
The figure is a circuit diagram of another embodiment, FIG. 7 is a flowchart of the same as the above, and FIGS. 8(a), (b), and (c) are diagrams for explaining the operation of the same. (1) is a load, (2) is a battery, (A) is a remaining capacity display means, (B) is an overload display means, and (C) is a display switching means. Agent Patent Attorney Ishi 1) Chief 7 Figure 8 Figure 8 (a)
Claims (3)
電圧と比較することにより残容量が所定量よりも少なく
なったことを判別して表示する残容量表示手段と、該重
油の端子電圧を第２の基準電圧と比較することにより過
負荷状態を判別して表示する過負荷表示手段と、画表示
手段を切換える表示切換手段とを具備して成る電池式電
気機器。(1) The terminal voltage of the battery connected to the load is set to the first base,
Remaining capacity display means for determining and displaying that the remaining capacity has become less than a predetermined amount by comparing with the voltage, and determining an overload state by comparing the terminal voltage of the heavy oil with a second reference voltage. 1. A battery-powered electric device comprising overload display means for displaying an image, and display switching means for switching the image display means.
イッチにて表示切換手段を形成して成る特許請求の範囲
第１項記載の電池式電気機器。(2) The battery-powered electric device according to claim 1, wherein the display switching means is formed by a changeover switch that is switched in conjunction with a single operator.
過負荷表示手段側に切換えられるように表示切換手段を
形成して成る特許請求の範囲第１項記載の電池式電気機
器。(3) A battery-powered electric device according to claim 1, further comprising display switching means so as to automatically switch to the overload display means side when the alternating current component of the load current exceeds a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58106887A JPS602015A (en) | 1983-06-15 | 1983-06-15 | Battery type electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58106887A JPS602015A (en) | 1983-06-15 | 1983-06-15 | Battery type electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS602015A true JPS602015A (en) | 1985-01-08 |
| JPH035140B2 JPH035140B2 (en) | 1991-01-24 |
Family
ID=14444999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58106887A Granted JPS602015A (en) | 1983-06-15 | 1983-06-15 | Battery type electric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS602015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241627U (en) * | 1988-09-09 | 1990-03-22 | ||
| JPH04158732A (en) * | 1990-10-23 | 1992-06-01 | Rheon Autom Mach Co Ltd | Extended opening and turning of croissant dough piece and system therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57203637U (en) * | 1981-06-19 | 1982-12-24 |
-
1983
- 1983-06-15 JP JP58106887A patent/JPS602015A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57203637U (en) * | 1981-06-19 | 1982-12-24 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241627U (en) * | 1988-09-09 | 1990-03-22 | ||
| JPH04158732A (en) * | 1990-10-23 | 1992-06-01 | Rheon Autom Mach Co Ltd | Extended opening and turning of croissant dough piece and system therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH035140B2 (en) | 1991-01-24 |
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