JPH01185462A - Battery-life indicating apparatus - Google Patents

Battery-life indicating apparatus

Info

Publication number
JPH01185462A
JPH01185462A JP63011167A JP1116788A JPH01185462A JP H01185462 A JPH01185462 A JP H01185462A JP 63011167 A JP63011167 A JP 63011167A JP 1116788 A JP1116788 A JP 1116788A JP H01185462 A JPH01185462 A JP H01185462A
Authority
JP
Japan
Prior art keywords
voltage
battery
lights
display device
light emitting
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
Application number
JP63011167A
Other languages
Japanese (ja)
Inventor
Kinya Nakayama
欣也 中山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP63011167A priority Critical patent/JPH01185462A/en
Publication of JPH01185462A publication Critical patent/JPH01185462A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

PURPOSE:To make it possible to display the consuming state of a battery, by detecting the voltage across both ends of the battery with a detecting circuit, and sequentially lighting one of a plurality of indicators based on the voltage level. CONSTITUTION:When a power source switch 5 is closed, a voltage is applied to a detecting and controlling circuit 8. When the voltage is above a predetermined value, a transistor Tr 9a becomes ON, and then a light emitting diode Do 11a lights. During the period the Tr 9 is ON, Dos 11b and 11c are not lighted with a Tr 9d. When the voltage across both ends of the battery becomes less than the predetermined voltage, the Do 11a becomes OFF, and the Do 11b lights. During this period the Tr 9c is OFF, similarly the Do 11c is not lighted. When the voltage across both ends further decreases and becomes less than the voltage specified by resistors 10c and 10d, the Do 11c lights similarly. When the voltage across both ends of the battery 1 finally becomes less than the voltage specified with resistor 10e and 10f, all diodes are OFF.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ポータプル型のラジオ受信機及びテープレコ
ーダ等の一次電池及び二次電池等の電池を電源とする機
器の電池寿命表示装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a battery life display device for devices powered by batteries such as primary batteries and secondary batteries, such as portable radio receivers and tape recorders. .

従来の技術 近年、ポータプル型のラジオ受信機及びテープレコーダ
等の機器は、低電圧化が進み、マンガン電池及びアルカ
リ電池なら一本で動作するものが主流となっている。
BACKGROUND OF THE INVENTION In recent years, portable radio receivers, tape recorders, and other devices have become increasingly low-voltage, and are now mainly powered by a single manganese battery or alkaline battery.

一般に、電池を電源とする従来の機器は、電池の消耗状
態を表示する際、電池の両端電圧を検出して電圧が設定
値に達した時に点灯状態から消灯状態に切替えて表示す
る場合が多い。第6図に従来の簡易型の電池寿命表示口
iを示す。第6図において電池1の両端電圧を抵抗10
1.1Ofでの分圧比の設定により検出し、設定電圧以
上になるとトランジスタ9をオンし、昇圧回路7から供
給される電流が発光ダイオード11に流れ点灯する。
In general, conventional devices that use batteries as a power source often detect the voltage across the battery and switch the display from a lit state to an off state when the voltage reaches a set value when displaying the battery consumption status. . FIG. 6 shows a conventional simple battery life display port i. In Figure 6, the voltage across the battery 1 is expressed by the resistor 10
It is detected by setting a voltage division ratio of 1.1Of, and when the voltage exceeds the set voltage, the transistor 9 is turned on, and the current supplied from the booster circuit 7 flows to the light emitting diode 11, turning it on.

電池1の両端電圧が丁かり、抵抗106.1Ofでの分
圧比の設定電圧以下になると、トランジスタ9はオフし
、発光ダイオード11は消灯し、電池の消耗状態を表示
する。
When the voltage across the battery 1 becomes equal to or lower than the set voltage of the voltage division ratio at the resistor 106.1Of, the transistor 9 is turned off and the light emitting diode 11 is turned off, indicating the battery consumption state.

発明が解決しようとする課題 ところが、このような電池寿命表示装置では、予め設定
した電圧まで発光ダイオードが点灯し、終止電圧直前に
なって発光ダイオードが消灯するため、電池の消耗状態
がわからないという問題がある。特に、機器の低電圧化
が進み電池−本で駆動する現在のテープレコーダにおい
ては、電池交換の頻度が高く、電池の消耗状態がわから
ないというのは大きな問題であった。
Problem to be Solved by the Invention However, in such a battery life display device, the light emitting diode lights up until a preset voltage is reached, and the light emitting diode turns off just before the final voltage, so there is a problem that the state of battery consumption cannot be determined. There is. In particular, in today's tape recorders, which are driven by batteries, as the voltage of equipment has become lower and lower, the frequency of battery replacement is high, and it is a big problem that the state of battery consumption cannot be determined.

本発明は上記課題に鑑み、電池の消耗状態を表示するこ
とを目的とする電池寿命表示装置を提供するものである
In view of the above problems, the present invention provides a battery life display device whose purpose is to display the state of battery consumption.

課題を解決するだめの手段 本発明の電池寿命表示装置は、電池の両端電圧を検知す
る検知回路と、この検知回路の検知結果に応じた電圧表
示をする複数の表示素子よりなる表示器と、この表示器
を上記検知回路の検知結果に対応して動作制御する制御
回路と、それらを収納した外部接続端子を有する電池ケ
ースとを備えたものである。
Means for Solving the Problems The battery life display device of the present invention includes a detection circuit that detects the voltage across the battery, and a display device that includes a plurality of display elements that display the voltage according to the detection result of the detection circuit. The display device is equipped with a control circuit that controls the operation of the display according to the detection results of the detection circuit, and a battery case that houses the control circuit and has external connection terminals.

作   用 本発明の電池寿命表示装置は、電池の両端電圧を検知回
路により検知し、電圧レベルによって複数の表示器のう
ち一つを順次点灯させ、電池が消耗状態になれば全て消
灯させて電池の消耗状態を表示するため、電池の消耗度
合に見あった表示を行なうことができるものである。
Function: The battery life display device of the present invention detects the voltage across the battery using a detection circuit, turns on one of the plurality of indicators in turn depending on the voltage level, and turns off all the lights when the battery is exhausted. Since the state of consumption of the battery is displayed, the display can be made in accordance with the degree of consumption of the battery.

実施例 以下、本発明の一実施例の電池寿命表示装置について図
面を参照して説明する。第1図において、電池1は電池
ケース2に収納され、機器本体3と接続端子41Lから
4dによって接続される。電源スィッチ5が投入されれ
ば、電池1の両端電圧は接続端子4bによって電池ケー
ス2内に収納されている検知兼制御回路8に印加される
。印加された電圧が抵抗10a及び10bにより予め設
定された電圧以上あれば、トランジスタ9aがオンし、
発光ダイオード11&が点灯する。抵抗10C及び10
dにより設定される電圧を抵抗10a及び1obのそれ
よりも低く設定し、また抵抗106及び10f’により
設定される電圧を抵抗10C及び10dのそれよりも低
く設定するが、トランジスタ9aがオンしている間はト
ランジスタ9dにより発光ダイオード11b、110を
点灯させないようにしている。つまり、トランジスタ9
b、90をオフするようにトランジスタ9b、9Cの各
々のペースをトランジスタ9e及び9fにヨリアースに
落している。電池1の両端電圧が抵抗101L及び10
bによる設定電圧以下になれば、発光ダイオード11a
は消灯し、発光ダイオード11bが点灯する。発光ダイ
オード11bが点灯している間は、発光ダイオード11
0が点灯しないように、先の説明と同様にして、トラン
ジスタ9Cはオフとなっている。さらに、電池の両端電
圧が下がり、抵抗1oC及び10dによる設定電圧以下
になれば、同様に、発光ダイオード110が点灯する。
EXAMPLE Hereinafter, a battery life display device according to an example of the present invention will be described with reference to the drawings. In FIG. 1, a battery 1 is housed in a battery case 2, and is connected to the device main body 3 through connection terminals 41L to 4d. When the power switch 5 is turned on, the voltage across the battery 1 is applied to the detection and control circuit 8 housed in the battery case 2 through the connection terminal 4b. If the applied voltage is equal to or higher than the voltage preset by resistors 10a and 10b, transistor 9a turns on,
The light emitting diode 11& lights up. Resistance 10C and 10
The voltage set by d is set lower than that of resistors 10a and 1ob, and the voltage set by resistors 106 and 10f' is set lower than that of resistors 10C and 10d, but when transistor 9a is turned on, During this time, the transistor 9d prevents the light emitting diodes 11b and 110 from being lit. In other words, transistor 9
In order to turn off transistors 9b and 90, each of transistors 9b and 9c is grounded to transistors 9e and 9f. The voltage across the battery 1 is the resistance 101L and 10
When the voltage becomes lower than the set voltage by b, the light emitting diode 11a
is turned off, and the light emitting diode 11b is turned on. While the light emitting diode 11b is lit, the light emitting diode 11
Similarly to the previous explanation, the transistor 9C is turned off so that 0 does not light up. Furthermore, when the voltage across the battery decreases to below the voltage set by the resistors 1oC and 10d, the light emitting diode 110 similarly lights up.

最終的に電池1の両端電圧が抵抗106及び10fによ
る設定電圧を割れば全て消灯される。
Finally, when the voltage across the battery 1 is less than the voltage set by the resistors 106 and 10f, all the lights are turned off.

第2図は、本発明の電池寿命表示装置を機器本体と接続
した図であり、第3図は電池ケース内に装着された図を
示す。
FIG. 2 is a diagram showing the battery life display device of the present invention connected to the main body of the device, and FIG. 3 is a diagram showing the battery life display device installed in the battery case.

なお、第1の実施例においては、検知兼制御回路8を抵
抗・トランジスタの各素子で別個に@成しだが、第4図
に示すようにIC化してもよい。
In the first embodiment, the detection and control circuit 8 is formed by each element of a resistor and a transistor separately, but it may be formed into an IC as shown in FIG. 4.

発明の効果 以上のように本発明の電池寿命表示装置は、電池の消耗
状態で複数の表示器を順次切替え点灯させ、かつ、消耗
時には全て消灯させることによって電池の消耗状態を検
出できるものであって、電池ケースの電池以外のスペー
スにこれらの回路を構成することにより、小型機器にお
いて重要な要因である機器サイズを大きくすることなく
、実現できるものである。
Effects of the Invention As described above, the battery life display device of the present invention is capable of detecting the depleted state of the battery by sequentially switching and lighting up a plurality of indicators when the battery is depleted, and turning off all the lights when the battery is depleted. By configuring these circuits in a space other than the battery in the battery case, this can be realized without increasing the device size, which is an important factor in small devices.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例における電池寿命表示装置の
回路図、第2図は機器本体との接続図、第3図は電池ケ
ースに内蔵した状態を示す断面図、第4図は本回路のブ
ロック図、第5図は従来の電池寿命表示装置の回路図で
ある。 1・・・・・・電池、2・・・・・・電池ケース、3・
・・・・機器本体、4a−d・・・・・接続端子、6・
・・・電源スィッチ、θ・・・・負荷、了・・・・外圧
回路、8・・・・検知兼制御回路、8′・・・・・検知
兼制御回路IC19・9八〜h・・・・・トランジスタ
、10a−f・・・・・抵抗、11・11a−C・・・
・・発光ダイオード、12・・・・・・プリント基板。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名区 
            区 へ                  曽派    
         派
Fig. 1 is a circuit diagram of a battery life display device according to an embodiment of the present invention, Fig. 2 is a connection diagram with the main body of the device, Fig. 3 is a sectional view showing the state built in the battery case, and Fig. 4 is a diagram of the main body of the battery. A block diagram of the circuit, FIG. 5 is a circuit diagram of a conventional battery life display device. 1...Battery, 2...Battery case, 3.
...Device body, 4a-d...Connection terminal, 6.
...Power switch, θ...Load, End...External pressure circuit, 8...Detection and control circuit, 8'...Detection and control circuit IC19/98~h... ...Transistor, 10a-f...Resistor, 11/11a-C...
...Light emitting diode, 12...Printed circuit board. Name of agent: Patent attorney Toshio Nakao and 1 other person
To the district Zengha
sect

Claims (1)

【特許請求の範囲】[Claims] 電池を電源とし、その電源の使用時に上記電源の電圧レ
ベルを検知する検知回路と、この検知回路の検知の結果
に応じた電圧表示をする複数の表示素子よりなる表示器
と、この表示器を上記検知回路の検知結果に対応して動
作制御する制御回路と、それらを収納した外部端子を有
する電池ケースとを備えたことを特徴とする電池寿命表
示装置。
A detection circuit that uses a battery as a power source and detects the voltage level of the power source when the power source is used, a display device that includes a plurality of display elements that displays voltage according to the detection result of this detection circuit, and this display device. A battery life display device comprising: a control circuit that controls operations in response to the detection results of the detection circuit; and a battery case housing the control circuit and having an external terminal.
JP63011167A 1988-01-21 1988-01-21 Battery-life indicating apparatus Pending JPH01185462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63011167A JPH01185462A (en) 1988-01-21 1988-01-21 Battery-life indicating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63011167A JPH01185462A (en) 1988-01-21 1988-01-21 Battery-life indicating apparatus

Publications (1)

Publication Number Publication Date
JPH01185462A true JPH01185462A (en) 1989-07-25

Family

ID=11770490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63011167A Pending JPH01185462A (en) 1988-01-21 1988-01-21 Battery-life indicating apparatus

Country Status (1)

Country Link
JP (1) JPH01185462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000063712A1 (en) * 1999-04-16 2000-10-26 The Gillette Company Gauge effect battery tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000063712A1 (en) * 1999-04-16 2000-10-26 The Gillette Company Gauge effect battery tester
US6294284B1 (en) 1999-04-16 2001-09-25 The Gillette Company Gauge effect battery tester

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