SE129171C1

SE129171C1 -

Info

Publication number: SE129171C1
Authority: SE
Publication date: 1950-01-01

Description

KLASS 21 a3:22701 BESKR1VNING OFFENTLIGGJORD AV KUNGL. CLASS 21 a3: 22701 DESCRIPTION PUBLISHED BY KUNGL.

PATENT- OCH REG1STRERINGSVERKET BEVIDAT DEN 8 JUNI 19PATENTTID FRAN DEN 16 DEC. 1946 PUBLICERAT DEN 22 AUGUST] 19 Ans. den "/,, 1946, nr 11020/1946. PATENT AND REGISTRATION AGENCY PROVIDED ON 8 JUNE 19 PATENT PERIOD FROM 16 DEC. 1946 PUBLISHED ON 22 AUGUST] 19 Ans. the "/ ,, 1946, No. 11020/1946.

Hartill en riffling. Hartill a riffling.

S. D. VIGREN, I. W. GRUNDIN OCH R.. A. ZANDER, STOCKHOLM. S. D. VIGREN, I. W. GRUNDIN AND R .. A. ZANDER, STOCKHOLM.

Elektromagnetisk vatiaranordning. Electromagnetic vatiar device.

Foreliggande uppfinning Minor sig till valjaranordningar for elektriska anlaggningar, foretradesvis svagstromsanlaggningar, vid vilka erfordras utvaljning av en eller flera godtyckliga kontakter. Sadana organ, vilka vanligen benamnas valjare, finnas i en mansfald utforanden. De huvudgrupper, som kunna sarskiljas, aro dels s. k. mekaniska valjare, vilka arbeta medelst stegmekanism med sparrhakar, steghjul in. In., saint s. k. relavalj are och koordinatvalj are. Bland nackdelarna vid den forra typen markes sarskilt den stora forslitningen av de ingaende delarna som steghjul, axellager in. in. och det darav foranledda kravet pa standig oversyn och justering. Nackdelen med de hittillsvarande relavaljarna och koordinatvaljarna, vars mekaniska forslitning Or mycket liten, Or att den erfordrar standig stromtillforsel for att kunna hallas i arbetslage. Da forsok i dessa fall ha gjorts for att undvika &Jima olagenhet genom att infOra mekaniska sparranordningar, uppkomma liknande svarigheter som vid de tidigare namnda stegmekaniska valjarna. The present invention relates to selection devices for electrical systems, preferably low current systems, in which selection of one or more arbitrary contacts is required. Such bodies, commonly referred to as electors, are found in a variety of designs. The main groups that can be distinguished are partly so-called mechanical selectors, which work by means of step mechanism with ratchets, step wheels. In., Saint s. K. Relavalj are och koordinatvalj are. Among the disadvantages of the former type, the large wear of the input parts such as step wheels, axle bearings is particularly noticeable. in. and the consequent requirement for constant review and adjustment. The disadvantage of the hitherto relay selectors and coordinate selectors, whose mechanical wear is very small, is that it requires a constant supply of power in order to be able to be kept in working order. Since attempts in these cases have been made to avoid & Jima inconvenience by introducing mechanical sparring devices, similar similarities arise as with the previously mentioned step mechanical selectors.

Foreliggande uppfinning undviker emellertid alla dessa svarigheter och kannetecknas av, att anordningen Or sa utford att vid magnetisering av en elektromagnet doss magnetiseringsfalt motriktat genomloper atminstone nagon del av en tillslagen elektromagnets magnetkrets sa. att det fasthallande remanenta magnetfaltet i donna krets helt eller delvis upphaves och motsvarande elektromagnetankare franslas. Harigenom vinnes att den vid hittills kanda relavalj are anvanda mekaniska sparranordningen ej erfordras och det mekaniska slitaget darfor ej blir storre On vid ett vanligt enkelt rela. Vidare erhalles en fullstandig magnetisk kontroll over valjarens utstallning. Driftsakerheten blir saledes mycket stor och ur saval mekanisk som schematisk synpunkt medfor en valjaranordning av har angiven princip ett avscvart tekniskt framsteg i forhallande till nu anvanda kopplingsapparater. However, the present invention avoids all of these drawbacks and may be characterized in that the device Or so challenges that when magnetizing an electromagnet dose magnetizing field oppositely passes through at least some part of a magnetic circuit of the turned-on electromagnet. that the holding remanent magnetic field in the donna circuit is completely or partially formed and the corresponding electromagnetic tank is fringed. In this way it is gained that the mechanical sparring device used hitherto known rela- valitors are not required and the mechanical wear therefore does not become greater On in a normal simple rela. Furthermore, a complete magnetic control is obtained over the selector's display. The operational reliability thus becomes very large and from both a mechanical and schematic point of view entails a selector device of a stated principle a corresponding technical progress in relation to currently used switching devices.

Valjaranordningen Or forsedd med ett godtyckligt antal elektromagneter och ankare, vilka aro monterade p0 en gzmensam brygga. Selector device Or provided with an arbitrary number of electromagnets and anchors, which are mounted on a common bridge.

Elektromagneterna jamte ankare Oro sa utformade, att ankarna efter tillslag kunna kvarligga i funktionslage genom magnetisk remanens genom att flagon del av kraftfaltets vag utforts riled hog magnetisk remanens, t. ex. genom anvandande av stalkarnor hos elektromagneterna, stalankare eller stalbrygga, eller genom att i kraftfaltets vag infogats en del av stal eller av annat material med hog magnetisk remanens. Kopplingsapparatens funktion erhalles genom att en magnet efter tillslag genom strom i dess lindning eller genom paverkan av ett inagnetiskt falt kvarligger genom magnetisk remanens, och vid magnetisering av en annan godtycklig magnet, den forst namnda elektromagneten bringas att slappa sitt ankare darigenom, att dess remanenta fall helt eller delvis upphaves genom magnetiseringsfaltet f Or den sist namnda elektromagneten. The electromagnets and anchors Oro is so designed that the anchors can remain in the functional state after being struck by magnetic remanence by removing the flake part of the force field's vague due to high magnetic remanence, e.g. by using steel cores of the electromagnets, steel anchors or steel bridge, or by inserting a part of steel or other material with high magnetic residues into the vagus of the force field. The function of the coupling device is obtained by a magnet remaining on by magnetic current in its winding or by the influence of an magnetic field by magnetic remanence, and in the magnetization of another arbitrary magnet, the first-mentioned electromagnet is caused to relax its armature by wholly or partly originated by the excitation field f Or the latter electromagnet.

For ati narmare klargOra uppfinningen och dess barande princip beskrives hiir nedan en utforingsform av en valjare enligt uppfinningen. Den visade utforingsformen kan modifieras pa manga satt och den barande uppfinnaretanken tillampas i andra konstruktioner och for andra andamal On har angivna. To further clarify the invention and its guiding principle, an embodiment of a selector according to the invention is described below. The embodiment shown can be modified in many ways and the bearing inventor tank is applied in other constructions and for other purposes specified.

En valjare enligt uppfinningen beskrives narmare nedan med hanvisning till fig. 1 -6. A selector according to the invention is described in more detail below with reference to Figs. 1-6.

Fig. 1 visar en forenklad principbild over valjarens magnetiska kretsar. Fig. 1 shows a simplified principle view of the selector magnetic circuits.

Fig. 2 visar magnetfaltets vag, dar endast en elektromagnet Or paverkad. Fig. 2 shows the vague of the magnetic field, where only one electromagnet Or is affected.

Fig. 3 visar magnetfaltets vag, dh tva elektromagneter Oro paverkade. Fig. 3 shows the vague of the magnetic field, ie two electromagnets Oro affected.

Fig. 4, 5 och 6 visa det mekaniska utforandet av en valjare enligt uppfinningen. Figs. 4, 5 and 6 show the mechanical design of a selector according to the invention.

Valjaren bestar av en stomme 1, uppbarande en permanent magnet 2, ett antal elektromagneter_ 3-7, monterade ph en gemensam skena 18 sarnt ett antal ankare 8-12, upphangda som vanliga relfiankare med eggupphangning. Pa stommen Or vidare monterade ett antal kontaktfjadergrupper 13-17, vardera svarande mot ett ankare. Ankarna Oro utf8rda utan s. k. polstift. I fig. 1 till 3 aro samma nummer angivna fOr de liar schematiskt tecknade delarna. The selector consists of a frame 1, carrying a permanent magnet 2, a number of electromagnets_ 3-7, ph mounted a common rail 18 and a number of anchors 8-12, suspended as ordinary relief anchors with edge suspension. On the frame Or further mounted a number of contact spring groups 13-17, each corresponding to an anchor. The anchors are made without so-called pole pins. In Figs. 1 to 3, the same numbers are given for the parts schematically drawn.

Ett kopplingsforlopp kan ske pa foljande 2— — satt. Elektromagneten 3 erhaller strom och attraherar sitt ankare 8. Harvid slutes magnetfaltet, som fig. 2 visar. DS tillslagsstrommen upphor, kvarligger ankaret ph grund av det genom den permanenta magneten 2 alstrade fdltet enligt fig. 2. Elektromagneten 4 erhailer nu strom over en kontaktfjodergrupp 13 och attraherar sitt ankare. Harvid slutes det magnetiska faltet som fig. 3 visar Over tvh yaw, dels genom elektromagneten 4, skenan 18, permanenta magneten 2, stommen 1, ankaret 9, elektromagneten 4, dels genom elektromagneten 4, skenan 18, elektromagneten 3, ankaret 8, stommen 1, ankaret 9, elektromagnet 4. Det sistnamnda magnetfdltet Sr motriktat mot det magnetfdlt som hdller kvar elektromagnetens 3 ankare 8, varfor detta ankare slar ifrhn och fjadergruppen 13 Ater-gar till opaverkat lage. Da strommen till elektromagneten 4 upphor genom brytningen av kontakten i kontaktfjadergrupp 13, kvariigger ankaret 9 fortfarande genom fdltet frail den permanenta magneten 2. Over kontakt pa kontaktfjadergrupp 14 ken nu elektromagneten 5 erhalla strom och attrahera sitt ankare, varvid forloppet upprepas pa angivet satt. A coupling process can take place in the following 2— - manner. The electromagnet 3 receives current and attracts its armature 8. The magnetic field is closed, as Fig. 2 shows. DS the on-current current ceases, the armature remains ph due to the field generated by the permanent magnet 2 according to Fig. 2. The electromagnet 4 now receives current over a contact spring group 13 and attracts its armature. The magnetic field as shown in Fig. 3 is closed. 1, the armature 9, the electromagnet 4. The latter magnetic field is opposite to the magnetic field which holds the armature 8 of the electromagnet 3, for which reason this armature strikes and the spring group 13 returns to unaffected position. When the current to the electromagnet 4 ceases due to the breaking of the contact in contact spring group 13, the armature 9 still remains through the field from the permanent magnet 2. Over contact on contact spring group 14 the electromagnet 5 can now receive current and attract its armature, repeating the process.

Claims

Patent claim:

1. An electromagnetic selector device, comprising electromagnets, the anchor of which, after being turned on, is held without current in a mode of operation with a magnetic resonance drive, characterized in that the device is so challenged that during magnetization of an electromagnet its magnetizing field the magnetic circuit of the electromagnet so that the retaining remanent magnetic field in this circuit is completely or partially canceled and the corresponding electromagnetic tank is fringed.

2. A reversing device according to claim 1, characterized in that the magnetic remanence is obtained in that the cores of the electromagnets, the anchors or a bridge common to the electromagnets consist of material with high magnetic remanence, e.g. of steel.

Selector device according to claim 1, characterized in that a part of material with a high magnetic residue, e.g. of steel dr inserted in the magnetizing circuits of the electromagnets.

4. Selecting device according to claim 1 and 3, characterized in that said part inserted in the magnetizing circuits is constituted by a permanent magnet.

5. A selector device according to claim 1, characterized in that the magnetic circuits are required to challenge that the opposite field for the origin of the residue is passed through a magnetic circuit common to all electromagnets, for example a bridge common to the electromagnets.

6. A selector device according to claim 1, characterized in that the magnetic circuits are so challenged that the oppositely directed felt of the remanence is passed through a magnetic circuit individual for each electromagnet, for example the core of the electromagnets. Stockholm 1950. Kungl. Boktr. P. A. Norstedt & Siiner 900089