DE2718261C2 - Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers - Google Patents

Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers

Info

Publication number
DE2718261C2
DE2718261C2 DE19772718261 DE2718261A DE2718261C2 DE 2718261 C2 DE2718261 C2 DE 2718261C2 DE 19772718261 DE19772718261 DE 19772718261 DE 2718261 A DE2718261 A DE 2718261A DE 2718261 C2 DE2718261 C2 DE 2718261C2
Authority
DE
Germany
Prior art keywords
toy
circuit arrangement
model systems
transformers
reverse voltages
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
Application number
DE19772718261
Other languages
German (de)
Other versions
DE2718261A1 (en
Inventor
Kuno 7321 Nenningen Herzer
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.)
Gebr Maerklin & Cie 7320 Goeppingen De GmbH
Original Assignee
Gebr Maerklin & Cie 7320 Goeppingen De 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 Gebr Maerklin & Cie 7320 Goeppingen De GmbH filed Critical Gebr Maerklin & Cie 7320 Goeppingen De GmbH
Priority to DE19772718261 priority Critical patent/DE2718261C2/en
Publication of DE2718261A1 publication Critical patent/DE2718261A1/en
Application granted granted Critical
Publication of DE2718261C2 publication Critical patent/DE2718261C2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Toys (AREA)

Description

Die vorliegende Erfindung betrifft eine Schaltungsan· Ordnung zur Vermeidung von Rückspannungen be:! über Transformatoren in Parallelschaltung gespeisten Spielzeug- und Modellanlagen gemäß dem Oberbegriff des Patentanspruchs.The present invention relates to a circuit arrangement Order to avoid back tension be :! fed via transformers in parallel connection Toy and model systems according to the preamble of the claim.

Es ist bekannt, z. B. aus der Veröffentlichung in »Si·· cherheitsingenieur«, Heft 10, 1976. S. 34—37, daß zwei oder mehrere Spielzeugtransformatoren, die sekundärseitig Wechselspannung liefern, sekundärseitig nichi: zweipolig miteinander verbunden werden sollten. Geschieht dies trotzdem, z. B. unabsichtlich oder absiehtlieh zwischen r.'vci Sekundärstromkreisen, so kann, wenn der Netzstecker eines Transformators gezogen wird, an den Stiften diesem Steckers Netzspannung alü Rückspannung liegen. Das deshalb, weil durch die Parallelverbindung zweier oder mehrei ;r Sekundärspuleri bei gezogenem Netzstecker eine Rücktransformatiori von der Sekundär- zur Primärspule stattfindet.It is known e.g. B. from the publication in »Si ·· security engineer ", No. 10, 1976. pp. 34-37, that two or several toy transformers that supply alternating voltage on the secondary side, but not on the secondary side: should be connected to each other with two poles. If this happens anyway, e.g. B. accidentally or by mistake between r.'vci secondary circuits, so can when the mains plug of a transformer is pulled is, at the pins of this plug mains voltage alü Back tension lie. This is because the parallel connection of two or more secondary coils When the mains plug is pulled, a reverse transformation takes place from the secondary to the primary coil.

Die Aufgabe der Erfindung ist es, Rückspannungen an den Steckerstiften bei parallel geschalteten Transformatoren zu vermeiden. Sie dient somit der Sicherheit des Spielenden.The object of the invention is to reduce reverse voltages at the connector pins in transformers connected in parallel to avoid. It therefore serves the safety of the player.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs gelöst. According to the invention, this object is achieved by the characterizing features of the patent claim.

Die Figur zeigt ein Ausführungsbeispiel, bei dem zwei Transformatoren primärseitig über das Netz und sekundärseitig über die Leitungen 1,2 parallel geschaltet sind. Im Transformatorgehäuse ist ein Relais eingebaut, dessen Kontakte 4 im Sekundärstromkreis angeordnet sind, dessen Magnetspule 3 jedoch im Primärstromkreis liegt. Wird der Netzstecker des einen Transformators gezogen und damit der Primärstromkreis unterbrochen, so wird die Spule 3 stromlos, der Magnet fällt ab und die Kontakte 4 im Sekundärstromkreis werden geöffnet. Damit kann sekundärseitig kein Strom mehr fließen und eine Induktion von der Sekundär- auf die Primärspulc findet nicht statt. Die Stifte des gezogenen Netzsteckers bleiben also spannungslos.The figure shows an embodiment in which two transformers on the primary side via the network and on the secondary side are connected in parallel via the lines 1, 2. A relay is built into the transformer housing Contacts 4 are arranged in the secondary circuit, but the magnet coil 3 is in the primary circuit. If the mains plug of a transformer is pulled and the primary circuit is interrupted, so the coil 3 is de-energized, the magnet drops and the Contacts 4 in the secondary circuit are opened. This means that electricity can no longer flow on the secondary side and there is no induction from the secondary to the primary coil. The pins of the unplugged power plug so remain tension-free.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Schaltungsanordnung zur Vermeidung von Rückspannungen bei über Transformatoren in Parallel- schaltung gespeisten Spielzeug- und Modellanlagen, wobei die Primärwicklungen der parallel zu schaltenden Transformatoren mittels aus Steckern und. Steckdosen bestehenden Steckkupplungen mit der Stromquelle verbindbar sind, dadurch gekennzeichnet, daß in Reihe mit der Primärwicklung jedes Transformators die Erregerwicklung: (3) eines Relais liegt dessen Arbeitskontakt (Arbeitskontakte) (4) in Reihe mit der Sekundärwicklung desselben Transformators liegt (liegen). Circuit arrangement to avoid reverse voltages when using transformers in parallel circuit-powered toy and model systems, with the primary windings of the transformers to be connected in parallel by means of plugs and. Sockets existing plug-in couplings can be connected to the power source, characterized in that that in series with the primary winding of each transformer the excitation winding: (3) of a relay whose working contact (s) (4) is (are) in series with the secondary winding of the same transformer.
DE19772718261 1977-04-25 1977-04-25 Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers Expired DE2718261C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772718261 DE2718261C2 (en) 1977-04-25 1977-04-25 Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772718261 DE2718261C2 (en) 1977-04-25 1977-04-25 Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers

Publications (2)

Publication Number Publication Date
DE2718261A1 DE2718261A1 (en) 1978-10-26
DE2718261C2 true DE2718261C2 (en) 1985-09-05

Family

ID=6007164

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772718261 Expired DE2718261C2 (en) 1977-04-25 1977-04-25 Circuit arrangement to avoid reverse voltages in toy and model systems fed in parallel via transformers

Country Status (1)

Country Link
DE (1) DE2718261C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645903A1 (en) * 1996-11-07 1998-05-20 Maerklin & Cie Gmbh Geb Electrical protective circuit for model railway layouts
DE19817226B4 (en) * 1998-04-17 2005-07-14 Mansel, Detlef, Prof. Dr.-Ing. Safety circuit against reverse voltages

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099415B (en) * 1959-03-13 1961-02-09 Fleischmann Metall Und Spielwa Toy transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645903A1 (en) * 1996-11-07 1998-05-20 Maerklin & Cie Gmbh Geb Electrical protective circuit for model railway layouts
DE19645903C2 (en) * 1996-11-07 2001-09-20 Maerklin & Cie Gmbh Geb Electrical protection circuit
DE19817226B4 (en) * 1998-04-17 2005-07-14 Mansel, Detlef, Prof. Dr.-Ing. Safety circuit against reverse voltages

Also Published As

Publication number Publication date
DE2718261A1 (en) 1978-10-26

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Legal Events

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OF Willingness to grant licences before publication of examined application
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8330 Complete disclaimer