DE561840C - Circuit arrangement for testing accumulators and elements - Google Patents
Circuit arrangement for testing accumulators and elementsInfo
- Publication number
- DE561840C DE561840C DEH125211D DEH0125211D DE561840C DE 561840 C DE561840 C DE 561840C DE H125211 D DEH125211 D DE H125211D DE H0125211 D DEH0125211 D DE H0125211D DE 561840 C DE561840 C DE 561840C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- testing
- circuit arrangement
- accumulators
- elements
- 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
Links
Classifications
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
Schaltungsanordnung zur Prüfung von Akkumulatoren und Elementen Der Ladezustand (Strommenge Q) eines Akkumulators oder galvanischen Elementes findet seinen Ausdruck in der Spannungskurve U = i (Q). Wenn wir mit einer bestimmten Stromstärke arbeiten, so geht die Beziehung über in U = f(1), also einer Funktion der Spannung U von der Zeit t. Ist ein Akkumulator schadhaft, d. h. besitzt er seine Kapazität nicht mehr, so läuft das darauf hinaus, daß er die Spannung U nicht mehr hält. Es ist also die Beziehung U = f (t) gestört bzw. in die rascher abklingende U = f 1(i) übergegangen.Circuit arrangement for testing accumulators and elements The state of charge (amount of current Q) of an accumulator or galvanic element is expressed in the voltage curve U = i (Q). If we work with a certain amperage, the relationship turns into U = f (1), i.e. a function of the voltage U from the time t. Is Acc umulator defective, that is, it does not possess its capacity more, so that it no longer holds the voltage U runs thereon addition. So the relationship U = f (t) is disturbed or changed to the more rapidly decaying U = f 1 (i).
Betrachten wir in der Spannungskurve U = f (i) der Abb. t die Punkte A und B, so sehen wir, daß innerhalb 8iner Zeit 11 t ein Spannungsunterschied AU entsteht. Hat sich die Kurve nun verändert, ist also in U = f 1(t) übergegangen, so ist das Verhältnis ein anderes. Wir erkennen also an diesem Verhältnis die gegenseitige Lage der Punkte A, B, damit die (auf die Zeit bezogene) Spannungshaltigkeit des Akkumulators und haben so ein Verfahren, die evtl. Veränderung im Gütezustand des Akkumulators festzustellen. Wenn wir deshalb eine Einrichtung anwenden, die das Verhältnis oder auch zu erfassen gestattet, so können wir auf einfache Weise den Gütezustand des Akkumulators selbsttätig prüfen.If we look at points A and B in the voltage curve U = f (i) in Fig. T, we see that a voltage difference AU occurs within a time 11 t. If the curve has now changed, i.e. if U = f 1 (t), the relationship is another. From this relationship we recognize the mutual position of the points A, B, thus the voltage-holding capacity of the accumulator (related to time) and thus have a method to determine the possible change in the quality of the accumulator. So if we use a facility that has the ratio or allowed to record, we can easily check the quality of the accumulator automatically.
In Abb. a ist eine Schaltungsanordnung gemäß der Erfindung gezeichnet. Wird die zu prüfende Batterie Bi mit dem Schalter S über den Widerstand W entladen," so wird die Spannung allmählich dem in Punkt A bestehenden Wert U1 zustreben und nach Erreichen das Relais U1 abfallen lassen. Dieses schaltet ein Laufwerk L :ein, das nach Verstreichen der Zeit At -einen Kontakt öffnet. Ist die Spannung der Batterie nun rascher gefallen als nach der Sollkurve U = f (t), so ist der Spannungswert U2 schon vor Ablauf der Zeit At -erreicht, d. h. Relais U2 läßt los, bevor L öffnet, wodurch das Relais R zum Ansprechen kommt. Dieses bildet einen Haltekreis und schaltet die Meldelampe M ein zum Zeichen, daß der Akkumulator die Spannung nicht mehr hält und somit schlecht ist.In Fig. A, a circuit arrangement according to the invention is drawn. If the battery Bi to be tested is discharged with the switch S via the resistor W, the voltage will gradually strive towards the value U1 existing in point A and, when it is reached, release the relay U1 If the voltage of the battery has fallen faster than according to the target curve U = f (t), then the voltage value U2 has already been reached before the time At has elapsed, ie relay U2 releases before L opens , causing the relay R to respond, which forms a hold circuit and switches on the signal lamp M to indicate that the accumulator no longer holds the voltage and is therefore bad.
Diese Prüfung, d. h. das Anschalten der Batterie auf die Prüfeinrichtung, kann sowohl beim Lade- als auch beim Entladevorgang und auch selbsttätig geschehen, sei ges bei Erreichen eines bestimmten Spannungspunktes oder :eines bestimmten Zeitpunktes. Ebenso eignet sich die Einrichtung auch zur Prüfung anderer Dinge oder Verhältnisse, sofern sie eine Funktion U = f(1) zu bilden gestatten.This test, ie the connection of the battery to the test device, can take place both during the charging and discharging process and also automatically, be it when a certain voltage point is reached or a certain point in time. The device is also suitable for testing other things or relationships, provided that they allow a function U = f (1) to be formed.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH125211D DE561840C (en) | Circuit arrangement for testing accumulators and elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH125211D DE561840C (en) | Circuit arrangement for testing accumulators and elements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE561840C true DE561840C (en) | 1932-10-19 |
Family
ID=7174833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH125211D Expired DE561840C (en) | Circuit arrangement for testing accumulators and elements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE561840C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1126502B (en) * | 1960-02-24 | 1962-03-29 | Licentia Gmbh | Circuit arrangement for determining the usable capacity of electrical lead collectors |
-
0
- DE DEH125211D patent/DE561840C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1126502B (en) * | 1960-02-24 | 1962-03-29 | Licentia Gmbh | Circuit arrangement for determining the usable capacity of electrical lead collectors |
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