DE2738959A1 - Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input - Google Patents

Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input

Info

Publication number
DE2738959A1
DE2738959A1 DE19772738959 DE2738959A DE2738959A1 DE 2738959 A1 DE2738959 A1 DE 2738959A1 DE 19772738959 DE19772738959 DE 19772738959 DE 2738959 A DE2738959 A DE 2738959A DE 2738959 A1 DE2738959 A1 DE 2738959A1
Authority
DE
Germany
Prior art keywords
series
battery
optical indicator
battery voltage
arrangement according
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
DE19772738959
Other languages
German (de)
Inventor
Gerhart Dr Bore
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.)
Georg Neumann GmbH
Original Assignee
Georg Neumann GmbH
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 Georg Neumann GmbH filed Critical Georg Neumann GmbH
Priority to DE19772738959 priority Critical patent/DE2738959A1/en
Publication of DE2738959A1 publication Critical patent/DE2738959A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H01M6/5044—Cells or batteries structurally combined with cell condition indicating means
    • H01M6/505—Cells combined with indicating means for external visualization of the condition, e.g. by change of colour or of light intensity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Secondary Cells (AREA)

Abstract

The secondary storage battery voltage monitoring unit is provided with commercial type switches that enable the battery to be tested under load by untrained personnel without endangering the battery. Thus, a series circuit consisting of a large capacitor (approx. 10uF) and an optical indicator unit is connected in parallel with the input to the load (consumer). Specif. the optical indicator component is a light-emitting diode or a bulb, and a zener diode is connected in series opposition with the l.e.d. One or more series connected forward-biased diodes are connected in series with the l.e.d. the latter's current being limited by means of a fixed shunt resistor.

Description

Anordnung zur Kontrolle der Spannung elektrischer BatterienArrangement for checking the voltage of electric batteries

Um die noch zu erwartende Lebensdauer einer aus einem oder mehreren Primär- oder (aufladbaren) Sekundärelementen bestehenden Batterie abschätzen zu können, ist es zweckmäßig, die Batteriespannung bei Belastung zu messen. Um schnell zu einer verwertbaren Aussage zu kommen, ist es üblich, den Belastungsstrom größer als den Strom des Verbrauchers zu wählen. Hierbei ist aber zu beachten, daß durch die Messung mit vergrößertem Strom die Batterie nicht nennenswert entladen wird. Die Messzeit darf also nur kurz sein.To the expected service life one of one or more Estimate primary or (rechargeable) secondary elements battery it is advisable to measure the battery voltage under load. To quickly In order to arrive at a usable statement, it is common for the load current to be larger than to choose the current of the consumer. It should be noted, however, that through the measurement with increased current does not discharge the battery significantly. The measurement time must therefore only be short.

Zur Erfüllung beider Forderungen auch bei unsachkundiger Bedienung durch Nichtfachleute ist es bereits bekannt, den Schalter des batteriegespeisten Verbrauchers mit einem Wischkontakt zu versehen, der nur zwischen den beiden Endstellungen des Schalters für eine sehr kurze Zeit geschlossen ist und hierbei eine Anzeigevorrichtung und gegebenenfalls einen Lastwiderstand an die Batterieanschlüsse legt. Hierzu ist jedoch ein im Handel nur schwer erhältlicher Spezialschalter erforderlich Die Anordnung nach der Erfindung gestattet nun, die Prüfung der Batterie, ohne sie zu gefährden, mit handelsüblichen Schaltern durchzuführen, und zwar ist die Erfindung dadurch gekennzeichnet, daß dem Eingang des Verbrauchers eine.Reihenschaltung aus einem größeren Kondensator mit einer Kapazität von etwa lo Mikrofarad oder mehr und einer optischen Anzeigevorrichtung parallelgeschaltet ist. Als optische Anzeigevorrichtung kann ein Lämpchen oder eine Leuchtdiode dienen.To meet both requirements, even with unskilled operation by non-experts it is already known to switch the battery-powered To provide the consumer with a wiping contact that is only between the two end positions the switch is closed for a very short time and this is a display device and, if necessary, applies a load resistor to the battery terminals. This is however, a special switch that is difficult to obtain commercially is required. The arrangement according to the invention now allows testing of the battery without endangering it, to carry out with commercially available switches, and that the invention is thereby characterized in that the input of the consumer eine.Reihenschaltung from a larger capacitor with a capacitance of about lo microfarads or more and one optical display device is connected in parallel. As a visual display device a lamp or a light-emitting diode can serve.

Nur der im ersten Augenbereich sehr große, dann aber schnell gegen Null gehende Ladestromstoß des Kondensators belastet die Batterie in definierter Weise und läßt, falls die Batterie eine auch unter Last noch ausreichende Spannung besitzt, die Anzeigevorrichtung kurz aufleuchten. Durch die Größe des aufzuladenden Kondensators wird bei gegebenem Innenwiderstand der Batterie die der Batterie entnommene und die zur Anzeige verfügbare Leistungsmenge festgelegt.Only the very large one in the first eye area, but then quickly against Zero charging current surge of the capacitor loads the battery in a defined way Way and if the battery has a sufficient voltage even under load the indicator light up briefly. By the size of the being charged For a given internal resistance of the battery, the capacitor is the one taken from the battery and the amount of power available for display.

Falls die Schwellenspannung, bei der die Anzeigeeinrichtung gerade noch aufleuchtet, kleiner ist als die Batteriespannung, die gerade noch eine Anzeige bewirken soll, können Zenerdioden und/oder in Durchlaßrichtung betriebene Dioden mit der Anzeigevorrichtung in Reihe geschaltet werden. Dieser könnte auch zur Strombegrenzung ein Festwiderstand parallel geschaltet werden, was jedoch nur in seltenen Fällen erforderlich sein dürfte.If the threshold voltage at which the display device is currently still lights up, is less than the battery voltage, which is just a display can cause Zener diodes and / or forward-biased diodes can be connected in series with the display device. This could also be used to limit the current a fixed resistor can be connected in parallel, but only in rare cases should be required.

Damit die Batteriekontrolle auch bei mehrfacher Schalterbetätigung möglich ist, wird vorteilhaft ein Umschalter verwendet, durch den bei jedem Ausschalten des Gerätes auch der Kondensator entladen wird. Es kann aber auch sinnvoll sein, dem Kondensator einen Entladewiderstand parallelzuschalten, der dann allerdings die Stromaufnahme des eingeschalteten Verbrauchers geringfügig vergrößert.This ensures that the battery is checked even when the switch is operated several times is possible, a changeover switch is advantageously used, through which each time it is switched off of the device, the capacitor is also discharged. But it can also be useful to connect a discharge resistor in parallel to the capacitor, which then, however the current consumption of the switched-on consumer is slightly increased.

Anhand der Figur soll der der Erfindung zugrundeliegende Gedanke näher erläutert werden. Als Anzeigeelement ist eine Leuchtdiode 1 vorgesehen.The idea on which the invention is based is intended in more detail with the aid of the figure explained. A light-emitting diode 1 is provided as a display element.

Die zu prüfende Batterie 2 speist beim Betätigen des Schalters 3 den Verbraucher 4. Gleichzeitig muß sie den Ladestrom für den Kondensator 5 aufbringen, der diesem über die Leuchtdiode 1 zugeführt wird. Wenn beispielsweise die Batterie 2 eine Sollspannung von 12 Volt hat, so darf sie in einem angenommenen Fall im Laufe der Zeit bis auf 9,5 Volt absinken, ohne daß die Funktion des Verbrauchers gefährdet wird. Da Leuchtdioden im allgemeinen bis hinab zu einer Spannung von etwa 2 Volt Licht abgeben, wird eine 8,2-Volt-Zenerdiode 6 in Reihe geschaltet. In diesem Fall werden an der Leuchtdiode 1 noch bis zum Absinken der Batteriespannung auf 10,2 Volt die erforderlichen 2 Volt abfallen, und sie wird beim Einschalten kurz aufleuchten. Bei weiterem Absinken der Batteriespannung vermag sie nicht mehr aufzuleuchten, und der Benutzer weiß dann, daß die Batteriespannung nur noch für kurze Zeit die für einen einwandfreien Betrieb erforderliche Größe aufweist.The battery to be tested 2 feeds when the switch 3 is pressed Consumer 4. At the same time, it must apply the charging current for the capacitor 5, which is fed to this via the light emitting diode 1. For example, if the battery 2 has a nominal voltage of 12 volts, it may in an assumed case in the course the time drop to 9.5 volts without endangering the function of the consumer will. Since light-emitting diodes in general down to a tension emit about 2 volts of light, an 8.2 volt zener diode 6 is connected in series. In this case, the light-emitting diode 1 will continue to show until the battery voltage drops to 10.2 volts drop the required 2 volts, and it will when you turn it on light up briefly. If the battery voltage drops further, it can no longer be used light up, and the user then knows that the battery voltage is only available for has the size required for proper operation for a short time.

Claims (7)

PATENTANSPRtJCHE 1. Anordnung zur Kontrolle der Spannung elektrischer Batterien, dadurch gekennzeichnet, daß dem Eingang des Verbrauchers (4) eine Reihenschaltung aus einem größeren Kondensator (5) mit einer Kapazität von etwa 10 Mikrofarad oder mehr und einer optischen Anzeigevorrichtung (1) parallelgeschaltet ist. PATENT CLAIMS 1. Arrangement for controlling the voltage of electrical Batteries, characterized in that the input of the consumer (4) is connected in series from a larger capacitor (5) with a capacity of about 10 microfarads or more and an optical display device (1) is connected in parallel. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß als Anzeigevorrichtung (1) eine Leuchtdiode oder ein Lämpchen dient.2. Arrangement according to claim 1, characterized in that as a display device (1) a light emitting diode or a lamp is used. 3. Anordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Leuchtdiode (1) eine Zenerdiode (6) vorgeschaltet ist.3. Arrangement according to claim 1 and 2, characterized in that the Light-emitting diode (1) is preceded by a Zener diode (6). 4. Anordnung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Leuchtdiode (1) eine oder mehrere in Reihe geschaltete und in Durchlaßrichtung betriebene Dioden vorgeschaltet sind.4. Arrangement according to claim 1 and 2, characterized in that the Light-emitting diode (1) one or more connected in series and operated in the forward direction Diodes are connected upstream. 5. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß zur Strombegrenzung der Anzeigevorrichtung (1) dieser ein Festwiderstand parallelgeschaltet ist.5. Arrangement according to claim 1, characterized in that for current limitation the display device (1) this a fixed resistor is connected in parallel. 6. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß ein Umschalter vorgesehen ist, durch den bei jedem Ausschalten des Gerätes (4) auch der Kondensator (5) entladen wird.6. Arrangement according to claim 1, characterized in that a changeover switch is provided, through which each time the device (4) is switched off, the capacitor (5) is discharged. 7. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß parallel zum Kondensator (5) ein Entladewiderstand geschaltet ist.7. Arrangement according to claim 1, characterized in that parallel a discharge resistor is connected to the capacitor (5).
DE19772738959 1977-08-30 1977-08-30 Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input Pending DE2738959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772738959 DE2738959A1 (en) 1977-08-30 1977-08-30 Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772738959 DE2738959A1 (en) 1977-08-30 1977-08-30 Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input

Publications (1)

Publication Number Publication Date
DE2738959A1 true DE2738959A1 (en) 1979-03-15

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ID=6017624

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772738959 Pending DE2738959A1 (en) 1977-08-30 1977-08-30 Secondary battery voltage monitor - has series-connected high value capacitor and optical indicator connected across load input

Country Status (1)

Country Link
DE (1) DE2738959A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525983A2 (en) * 1991-07-03 1993-02-03 Tai-Her Yang Device for measuring the state of charge of a battery
CN113924675A (en) * 2019-06-10 2022-01-11 东丽株式会社 Battery inspection device and battery inspection method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525983A2 (en) * 1991-07-03 1993-02-03 Tai-Her Yang Device for measuring the state of charge of a battery
EP0525983A3 (en) * 1991-07-03 1993-09-08 Tai-Her Yang Device for measuring the state of charge of a battery
CN113924675A (en) * 2019-06-10 2022-01-11 东丽株式会社 Battery inspection device and battery inspection method
CN113924675B (en) * 2019-06-10 2024-05-17 东丽株式会社 Battery inspection device and battery inspection method

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