DE1191017B - Electric float switch - Google Patents

Electric float switch

Info

Publication number
DE1191017B
DE1191017B DEL39540A DEL0039540A DE1191017B DE 1191017 B DE1191017 B DE 1191017B DE L39540 A DEL39540 A DE L39540A DE L0039540 A DEL0039540 A DE L0039540A DE 1191017 B DE1191017 B DE 1191017B
Authority
DE
Germany
Prior art keywords
float
permanent magnet
contact device
switch
float switch
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
DEL39540A
Other languages
German (de)
Inventor
Oskar Luehn
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.)
WOLFGANG LUEHN
Original Assignee
WOLFGANG LUEHN
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 WOLFGANG LUEHN filed Critical WOLFGANG LUEHN
Priority to DEL39540A priority Critical patent/DE1191017B/en
Publication of DE1191017B publication Critical patent/DE1191017B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/70—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Description

Elektrischer Schwimmerschalter Die Erfindung betrifft einen elektrischen Schwimmerschalter für Flüssigkeitsstandreglung.Electric float switch The invention relates to an electric float switch Float switch for liquid level control.

Es sind bereits elektrische Schwimmerschalter bekannt, die jedoch den Nachteil haben, daß die zur Betätigung erforderliche magnetische Kraft sehr groß sein muß, um einen Schaltvorgang auszulösen. Die bekannten Schwimmerschalter haben ferner den Nachteil, daß sie eine erhebliche Streuung im Ein-und Ausschaltbereich haben und folglich - z. B. für Abfüllzwecke usw. - ungeeignet sind. Electric float switches are already known, but they have the disadvantage that the magnetic force required for actuation is very high must be large to trigger a switching process. The well-known float switches also have the disadvantage that they have a considerable spread in the switch-on and switch-off range have and consequently - z. B. for filling purposes etc. - are unsuitable.

Die Erfindung zeigt einen elektrischen Schwimmerschalter, bei dem diese Nachteile behoben sind. The invention shows an electric float switch in which these disadvantages have been eliminated.

Die Erfindung ist dadurch gekennzeichnet, daß die Kontakteinrichtung aus einer Stahlbandzunge besteht, die von einem zweiten Permanentmagneten in einer Schneidenlagerung gehalten und so vorgepolt ist, daß sie bei Aufwärtsbewegung des Schwimmers von dessen Permanentmagneten abstoßend mitgenommen wird und dabei einen Relaisstromkreis schaltet. The invention is characterized in that the contact device consists of a steel strip tongue, which is held by a second permanent magnet in a Blade bearing is held and polarized so that it is when the The float is carried away repulsively by the permanent magnet and thereby a Relay circuit switches.

Die Erfindung ist beispielsweise in der Zeichnung schematisch dargestellt. The invention is shown schematically in the drawing, for example.

Es ist 1 z. B. eine Stahlbandzunge, die in einer Halterung 2 gelagert und vermittels einem Permanentmagneten 3 vorgepolt ist. Die Schaltkontakte sind mit 4, 5 bezeichnet, 6 ist ein Schwimmer mit dem Dauermagneten 7. Die Kontakte 4, 5 bilden mit der Stahlbandzunge 1, dem Widerstand 10 und der Wicklung des Relais 8 den Sekundärkreis des Transformators 9. Die Stahlbandzunge 1 ist in der Schneidenlagerung 2 so angeordnet, daß sie sich unter der magnetischen Einwirkung des Permanentmagneten 3 leicht auf und ab bewegt, sobald sie von dem am Schwimmer befestigten Dauermagneten7 beeinflußt wird. Infolge der Vorpolung der Stahlbandzunge kann diese bereits mit äußerst geringer magnetischer Kraft gesteuert werden. Sobald der sich am Schwimmmer 6 befestigte Dauermagnet 7 der Stahlbandzunge 1 nähert, wird diese gehoben, wobei die Kontakte 4, 5 geschlossen werden und das Relais 8 zum Ansprechen gebracht wird. Infolge der Verwendung von Kleinst- dauermagneten am Schwimmer 6 kann der elektrische Schalter für verhältnismäßig kleine Durchmesser von Schwimmeraufnahmerohren verwendet werden. It is 1 z. B. a steel strip tongue, which is stored in a holder 2 and is biased by means of a permanent magnet 3. The switching contacts are denoted by 4, 5, 6 is a float with the permanent magnet 7. The contacts 4, 5 form with the steel band tongue 1, the resistor 10 and the winding of the relay 8 the secondary circuit of the transformer 9. The steel strip tongue 1 is in the cutting edge bearing 2 arranged so that they are under the magnetic action of the permanent magnet 3 moves slightly up and down as soon as it is removed from the permanent magnet 7 being affected. As a result of the pre-polarity of the steel strip tongue, this can already be with extremely low magnetic force can be controlled. As soon as he is on the float 6 attached permanent magnet 7 approaches the steel band tongue 1, this is lifted, whereby the contacts 4, 5 are closed and the relay 8 is made to respond. As a result of the use of micro permanent magnets on the float 6 can be the electric Switch used for relatively small diameters of float tubes will.

Claims (3)

Patentansprüche: 1. Elektrischer Schwimmerschalter, dessen Schwimmer mit einem Permanentmagneten ausgerüstet und dessen Kontakteinrichtung ortsfest angeordnet ist, dadurch gekennzeichnet, daß die Kontakteinrichtung aus einer Stahlbandzunge (1) besteht, die von einem zweiten Magneten (3) in einer Schneidenlagerung (2) gehalten und so vorgepolt ist, daß sie bei Aufwärtsbewegung des Schwimmers von dessen Permanentmagneten (7) abstoßend mitgenommen wird und dabei einen Relaisstromkreis (8) schaltet. Claims: 1. Electric float switch, its float equipped with a permanent magnet and its contact device arranged in a stationary manner is, characterized in that the contact device consists of a steel strip tongue (1), which is held by a second magnet (3) in a cutting edge bearing (2) and is biased in such a way that when the float moves upwards it is released from its permanent magnet (7) is carried away repulsively and thereby switches a relay circuit (8). 2. Schalter nach Anspruch 1, dadurch gekennzeichnet, daß der mit einem Vorwiderstand (10) versehene Relaisstromkreis mit erhöhter Spannung über einen Transformator (9) gespeist wird. 2. Switch according to claim 1, characterized in that the with a series resistor (10) provided relay circuit with increased voltage over a Transformer (9) is fed. 3. Schalter nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Kontakteinrichtung in einer luftdicht abgeschlossenen Glasröhre untergebracht ist. 3. Switch according to claim 1 and 2, characterized in that the Contact device is housed in an airtight glass tube. In Betracht gezogene Druckschriften: Französische Patentschriften Nr. 1 251 001, 1 127 548; USA.-Patentschrift Nr. 2 927 176. Documents considered: French patents No. 1,251,001, 1,127,548; U.S. Patent No. 2,927,176.
DEL39540A 1961-07-05 1961-07-05 Electric float switch Pending DE1191017B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL39540A DE1191017B (en) 1961-07-05 1961-07-05 Electric float switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL39540A DE1191017B (en) 1961-07-05 1961-07-05 Electric float switch

Publications (1)

Publication Number Publication Date
DE1191017B true DE1191017B (en) 1965-04-15

Family

ID=7268694

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL39540A Pending DE1191017B (en) 1961-07-05 1961-07-05 Electric float switch

Country Status (1)

Country Link
DE (1) DE1191017B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1127548A (en) * 1955-06-04 1956-12-18 Device for controlling the sudden movement of a controlled element
US2927176A (en) * 1955-01-06 1960-03-01 Phillips Aviat Co Magnetic switch mechanism
FR1251001A (en) * 1960-01-19 1961-01-13 Magnetically controlled switching device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927176A (en) * 1955-01-06 1960-03-01 Phillips Aviat Co Magnetic switch mechanism
FR1127548A (en) * 1955-06-04 1956-12-18 Device for controlling the sudden movement of a controlled element
FR1251001A (en) * 1960-01-19 1961-01-13 Magnetically controlled switching device

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