DE358530C

DE358530C - Test arrangement for double tests in telephone systems with dialer operation

Info

Publication number: DE358530C
Application number: DES54850D
Authority: DE
Original assignee: Siemens and Halske AG; Siemens AG
Current assignee: Siemens and Halske AG; Siemens AG
Publication date: 1922-09-12

Description

Im Hauptpatent ist eine Prüfanordnung für Doppelprüfen, z.B. für Ortsbesetztprüfen und Fernbesetztprüfen, beschrieben, bei welcher als Prüforgan ein Kipprelais dient. Der Anker dieses Kipprelais wird in der einen Lage durch ein Ruhefeld gehalten, während er in die andere Lage durch ein entgegenwirkendes Arbeitsfeld gebracht wird. Die beiden einander entgegenwirkenden Felder werden durch die Prüfschaltvorgänge gesteuert. Das Ansprechen eines solchen Prüfrelais ist daher lediglich von dem_t Verhältnis zweier magnetischer Kräfte abhängig, während veränderliche Federspannungen oder Batteriespannungsschwankungen ausgeschaltet sind.The main patent describes a test arrangement for double tests, for example for on-site and remote-manned tests, in which a toggle relay is used as the test element. The armature of this toggle relay is held in one position by a rest field, while it is brought into the other position by a counteracting working field. The two opposing fields are controlled by the test switching processes. The response of such a test relay is therefore only _{dependent on the t} ratio of two magnetic forces, while variable spring voltages or battery voltage fluctuations are eliminated.

Bei der vorliegenden Erfindung handelt es sich um eine Weiterausbildung des den Gegenstand des Hauptpatentes bildendenThe present invention is a further development of the den Subject of the main patent forming

ao Prüfrelais in dem. Sinne, daß ein einfacher und billiger Aufbau eines solchen Prüfrelais erzielt ist. Hierbei ist nicht nur Gewicht daraufgelegt, durch Materialersparnis, wie Verwendung einer einzigen Spule, das Relais für billige Massenfabrikation geeignet zu machen, sondern es sollen auch die Herstellungskosten durch möglichst geringe Justierarbeit vermindert werden. Der vorher dargelegte Zweck ist nach der Erfindung dadurch erreicht, daß die Sättigungsgrenze des den Anker in der Ruhelage haltenden magnetischen Feldes niedriger gewählt ist als die des Arbeitsfeldes.ao test relay in the. Meaning that a simple and cheap structure of such a test relay is achieved. Here, not only weight is placed on it, through material savings, such as Using a single coil, the relay is suitable for inexpensive mass production too make, but it should also reduce the manufacturing costs through the least possible adjustment work be reduced. The purpose set out above is achieved according to the invention in that the saturation limit of the Armature in the rest position holding magnetic field is selected lower than that of the Field of work.

Ein anderer Weg zur Erreichung des gleichen Zieles ist nach der Erfindung dadurch gegeben, daß der Anker durch einen permanenten Magneten in der Ruhelage gehalten wird.Another way of achieving the same goal is by the invention given that the armature is held in the rest position by a permanent magnet will.

In Abb. ι und 2 der Zeichnung sind zwei verschiedene Ausführungsformen eines nach der Erfindung hergestellten Relais schematisch veranschaulicht.In Fig. Ι and 2 of the drawing are two different embodiments of one after The relay manufactured according to the invention is illustrated schematically.

Das in Abb. 1 dargestellte Prüfrelais ist als Topfrelais ausgebildet, dessen Kern aus zwei bolzenartigen, gleichachsig angeordneten Teilen K₁, K₂ besteht. Der Kemteil K₁ ist in dem Topf T des Relais befestigt und besitzt am freien Ende eine mit Gewinde versehene Bohrung k, in welche ein Gewindezapfen des anderen Teiles K₂ hineingeschraubt ist. Der Kernteil K₁ ist mit einem scheibenartigen Polschuh P₁ versehen. Zwischen dem Polschuh P₁ und dem Boden des Topfes T ist auf dem Kernteil K₁ eine Wicklung .S vorgesehen. Der Kernteil K₂ trägt am freien Ende einen kleineren, scheibenartigen Polschuh P₂. Auf den beiden Kernteilen K₁, K₂ ist zwischen den Polschuhen P₁, P₂ ein Anker A verschiebbar. Der Anker/ί ist mit zwei aus magnetischem Stoff bestehenden Schlußstücken W₁ und m, versehen, von denen das Schlußstück m₂ geringer bemessen ist als das Schlußstück m_v Diese Schlußstücke sind durch ein Isolierstück i und eine Kontaktfeder / miteinander verbunden. Die Kontaktfeder / kann abwechselnd mit den zu bekannten Zwecken dienenden Ruhekontakten O₁ und Arbeitskontakten O₂ in Berührung gebracht werden.The test relay shown in Fig. 1 is designed as a pot relay, the core of which consists of two bolt-like, coaxially arranged parts K ₁ , K ₂ . The core part K ₁ is fastened in the pot T of the relay and has a threaded bore k at the free end into which a threaded pin of the other part K _{2 is} screwed. The core part K ₁ is provided with a disk-like pole piece P ₁ . A winding .S is provided on the core part K ₁ between the pole piece P ₁ and the bottom of the pot T. The core part K ₂ carries a smaller, disk-like pole piece P ₂ at the free end. An armature A can be displaced between the pole pieces P ₁ , P ₂ on the two core parts K ₁ , K _2. The armature / ί is provided with two tail pieces W ₁ and m made of magnetic material, of which the tail piece m _{2 is} smaller than the tail piece m _v. These tail pieces are connected to one another by an insulating piece i and a contact spring /. The contact spring / can be brought into contact alternately with the normally closed contacts O ₁ and normally open contacts O _{2 which are used for known purposes.}

Der Kernteil K _x bildet mit dem Polschuh P₁ das Magnetsystem für das Arbeitsfeld, während die Kernteile K₁, K₂ mit dem Polschuh P₂ das Magnetsystem für das Ruhefeld bilden. Durch die geringere Bemessung des Polschuhes P₂, gegebenenfalls auch des Kernteiles K₂, gegenüber dem Polschuh P₁ The core part K _x with the pole piece P _{1 forms} the magnet system for the working field, while the core parts K ₁ , K ₂ with the pole _{piece P 2 form} the magnet system for the rest field. Due to the smaller dimensioning of the pole piece P ₂ , possibly also of the core part K ₂ , compared to the pole piece P ₁

Claims

or the core part K ₁ is achieved that the rest field is saturated even at a lower current than the working field. At a certain greater strength of the ^{test current flowing through the coil 6 1} , the working field therefore predominates, so that the armature A is brought from the rest position into the working position.

If the relay is to be used at a certain amperage, e.g. B. at 30. milliamps, do not respond, but only z. B. come into effect at 50 milliamps in order to open its normally closed contacts O ₁ and to close its normally open contacts o ₂ , there must be sufficient security for reliable operation of the relay with regard to both the one and the other current range. By simply adjusting the core part K ₂ with the pole piece P ₂ in the direction of the longitudinal axis of the magnet , any desired tilt limit ζ can be set with great accuracy. If a current flows through the coil S , in which the relay is to remain in the rest position, the pull-in of the predominates

Pole shoe P ₂ , so that the armature is held in its "rest position. If, on the other hand, a current flows through the coil ^ in which the armature of the relay is to be moved into its working position, the field K ₁ , P ₁ , ni _± compared to the field ^ ₁ , K ₂ , P ₂ , m ₂ , since the latter field is already saturated at a lower current strength the armature a with vigorous its work pressure contacts o "includes. Due to the design of the relay as a pot relay is an improvement of the magnetic circuits obtained.

As can be seen from the above, the basic idea on which this is the subject of the main patent forming test relay is based, according to the present invention such realizes that the production of such a test relay with little material expenditure and little adjustment work is made possible.

In the test relay according to Fig. 2, the armature A is held in the rest position by a permanent magnet P. The electromagnet E with the coil S generates the working field during the testing process. Both magnets are screwed into a common insulating plate J and are therefore magnetically isolated. Even with the relay according to Fig. 2, only a small amount of material and only a single coil is required, so that the relay is also suitable for inexpensive mass production. The relay can be easily adjusted by simply screwing the two magnets higher or lower in the insulating plate /. The tilt limit can be determined through this setting and through the correct choice of the permanent magnet.

In the embodiment according to Fig. 1, a permanent magnet can also be used for the rest field of the relay. The core part K _z with the pole piece P ₂ is

: in this case formed by a permanent magnet.

j patent claims:

j ι. Test arrangement for double testing in

Telephone systems with dialer operation according to patent 318357, characterized by such a design of the test relay that the saturation limit of the armature in the The rest position holding magnetic field is lower than that of the working field.

2. Test arrangement according to claim 1, characterized in that the rest and the working field of the test relay is generated electromagnetically by a single coil (S) .

3. Test relay according to claim 1 and 2, characterized in that the core of the test relay consists of two adjustable interconnected parts (K ₁ , K ₂ ) , of which one part (K ₁ ) the pole piece (P ₁ ) of the working magnetic circuit and the other part (K ₂ ) carries the pole _{piece (P 2} ) of the rest magnetic circuit.

4. Test arrangement according to claim 1 to 3, characterized in that the core of the test relay consists of two bolt-like, coaxially screwed parts (K ₁ , K ₂ ) , which wear different sized disc-like pole shoes (P ₁ , P ₂ ), between which the Armature (A) is displaceable.

5. Test arrangement according to claim 4, characterized in that the armature (A) is provided with two tail pieces (Wi ₁ , m ₂ ) made of magnetic material, between which an insulating piece (i) and a contact spring (f) are arranged.

6. Test arrangement for double tests in telephone systems with dialer operation according to Patent 318357, characterized in that the test relay is provided with a permanent magnet (P) holding ^{the armature in the rest position · 1.}

1 sheet of drawings.