DE1107741B - Arrangement for measuring the electrolyte density and the electrolyte level in lead accumulators - Google Patents
Arrangement for measuring the electrolyte density and the electrolyte level in lead accumulatorsInfo
- Publication number
- DE1107741B DE1107741B DEH39454A DEH0039454A DE1107741B DE 1107741 B DE1107741 B DE 1107741B DE H39454 A DEH39454 A DE H39454A DE H0039454 A DEH0039454 A DE H0039454A DE 1107741 B DE1107741 B DE 1107741B
- Authority
- DE
- Germany
- Prior art keywords
- electrolyte
- arrangement
- measuring
- density
- bridge
- 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
Links
Classifications
-
- 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
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
-
- 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)
- Secondary Cells (AREA)
Description
Anordnung zum Messen der Elektrolytdichte und des Elektrolytstandes bei Bleiakkumulatoren Zusatz zur Patentanmeldung H 38539 IV a / 21 b (Auslegeschrift 1100 739) In der Patentanmeldung H 38539 IV a/ 21b wird eine Anordnung beschrieben, mit der die Elektrolytdichte und der Elektrolytstand bei Bleiakkumulatoren gemessen werden kann.Arrangement for measuring the electrolyte density and the electrolyte level In the case of lead-acid batteries, addendum to patent application H 38539 IV a / 21 b (Auslegeschrift 1100 739) In the patent application H 38539 IV a / 21b an arrangement is described, with which the electrolyte density and the electrolyte level are measured in lead-acid batteries can be.
Diese Schaltung enthält eine Brücke, in deren einem Zweig ein nichtlinearer Widerstand, wie z. B. eine Diode liegt. Dieser nichtlineare Widerstand vergrößert seinen Widerstand mit fallender Spannung, d. h. bei sinkender Säuredichte. Die Spannung an der Diode, die sich aus dem Produkt Strom mal Widerstand ergibt, bleibt praktisch konstant, da mit fallendem Strom der Widerstand ansteigt. Das Brückengleichgewicht wird hierdurch stärker gestört und die Anzeige des Meßgerätes in dem interessierenden Bereich geringer Säuredichte gedehnt.This circuit contains a bridge, in one branch of which there is a non-linear Resistance, such as B. is a diode. This non-linear resistance increases its resistance with decreasing voltage, d. H. with decreasing acid density. The voltage at the diode, which results from the product of current times resistance, remains practical constant, since the resistance increases with decreasing current. The bridge equilibrium is thereby more disturbed and the display of the measuring device in the interesting Stretched area of low acid density.
Da die Schaltung mit geringen Spannungen arbeitet, muß sie von äußeren Einflüssen völlig freigehalten werden. Hierzu gehören durch Temperaturschwankungen bedingte Änderungen, und es hat sich deshalb als notwendig herausgestellt, parallel oder in Reihe zu dem nichtlinearen Widerstand weitere Widerstände zu schalten, deren Widerstand sich in Abhängigkeit von der Temperatur ändert. Zu solchen Widerständen gehören z. B. die sogenannten NTC-Widerstände. Dies bringt es mit sich, daß der nichtlineare Widerstand und die dazugehörigen Schaltelemente verhältnismäßig viel zum Gesamtpreis der Anordnung beitragen.Since the circuit works with low voltages, it must be external Influences are kept completely free. This includes due to temperature fluctuations conditional changes, and it has therefore turned out to be necessary, in parallel or to connect further resistors in series with the non-linear resistor, whose Resistance changes depending on temperature. To such resistance belong e.g. B. the so-called NTC resistors. This means that the non-linear resistance and the associated switching elements relatively much contribute to the total price of the arrangement.
Es wurde nun gefunden, daß sich das erstrebte Ziel mit weitaus geringeren Kosten erreichen läßt, wenn statt des nichtlinearen Widerstandes und der dazugehörigen Schaltelemente eine kleine ständig gasdicht verschlossene Akkumulatorenzelle verwendet wird. Dies kann ein Akkumulator in Form einer Knopfzelle sein, der eine Spannung im Bereich zwischen 1,30 und 1,40 V abgibt und eine Kapazität von z. B. etwa 50 mAh hat. Diese gasdichte Zelle wird so in die Brücke eingelegt, daß sie durch die von den Hilfselektroden erzeugte Spannung und den entsprechend durch die Brücke fließenden Strom geladen wird.It has now been found that the desired goal can be achieved with far less Can achieve costs if instead of the non-linear resistance and the associated Switching elements used a small, permanently gas-tight sealed accumulator cell will. This can be an accumulator in the form of a button cell that generates a voltage in the range between 1.30 and 1.40 V and a capacity of z. B. about 50 mAh has. This gas-tight cell is placed in the bridge so that it passes through the voltage generated by the auxiliary electrodes and the corresponding voltage generated by the bridge flowing current is charged.
Bei dieser Polung ist die Spannung an der Zelle = EMK -f- Widerstand der Zelle mal Strom. Der Widerstand der Zelle ist relativ gering, und der Brückenstrom ist in diesem Zweig so klein, daß das Produkt Innenwiderstand der Zelle mal Stromdifferenz die Spannung der Zelle praktisch nicht beeinfiußt. Die Spannung ist somit in diesem Brückenzweig praktisch konstant. Daraus folgt, daß die gasdichte Zelle die gleiche Aufgabe wie die bei der Schaltung nach der Hauptpatentanmeldung verwendete Diode erfüllt.With this polarity, the voltage on the cell = EMF -f- resistance the cell times electricity. The resistance of the cell is relatively low, and the bridge current is so small in this branch that the product of the internal resistance of the cell times the current difference practically does not affect the voltage of the cell. The tension is in this one Bridge branch practically constant. It follows that the gas-tight cell is the same Task like the diode used in the circuit according to the main patent application Fulfills.
In der Zeichnung ist die Schaltung der Anordnung dargestellt.In the drawing, the circuit of the arrangement is shown.
Der Akkumulator ist mit 1 und die in ihm angeordneten Platten mit 2 bezeichnet. Der Säurespiegel ist durch eine gestrichelte Linie dargestellt. Unterhalb des Säurespiegels liegen die Elektroden 3 und 4, die über Leitungen mit der Brücke verbunden sind. Diese Brücke enthält die gasdichte Zelle 5, zwei Festwiderstände 6, einen Regelwiderstand 7 und ein Galvanometer B.The accumulator is marked with 1 and the plates arranged in it with 2 designated. The acid level is shown by a dashed line. Below of the acid level are electrodes 3 and 4, which are connected to the bridge via cables are connected. This bridge contains the gas-tight cell 5, two fixed resistors 6, a rheostat 7 and a galvanometer B.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH39454A DE1107741B (en) | 1960-05-17 | 1960-05-17 | Arrangement for measuring the electrolyte density and the electrolyte level in lead accumulators |
LU39651D LU39651A1 (en) | 1960-01-30 | 1961-01-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH39454A DE1107741B (en) | 1960-05-17 | 1960-05-17 | Arrangement for measuring the electrolyte density and the electrolyte level in lead accumulators |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1107741B true DE1107741B (en) | 1961-05-31 |
Family
ID=7153961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH39454A Pending DE1107741B (en) | 1960-01-30 | 1960-05-17 | Arrangement for measuring the electrolyte density and the electrolyte level in lead accumulators |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1107741B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063032A2 (en) * | 1981-04-14 | 1982-10-20 | Terry Roy Jackson | Measurement device for indicating the state-of-charge of electrolytic storage type cells |
-
1960
- 1960-05-17 DE DEH39454A patent/DE1107741B/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0063032A2 (en) * | 1981-04-14 | 1982-10-20 | Terry Roy Jackson | Measurement device for indicating the state-of-charge of electrolytic storage type cells |
EP0063032A3 (en) * | 1981-04-14 | 1983-03-16 | Terry Roy Jackson | Measurement device for indicating the state-of-charge of electrolytic storage type cells |
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