SE179738C1

SE179738C1 -

Info

Publication number: SE179738C1
Authority: SE
Publication date: 1962-01-01

Description

Uppfinnare: R Nitsch Prioritet begard frau den 5 april 1957 (Porbundsrepubliken Tyskland) Huvudpatentet avser en anordning for elektromagnetisk paverkan av kontakter, vilkas kontaktfjadrar fora det magnetiska flode, som paverkar dem, och vilka aro anordnade pa korsningsstallena i ett korsfalt, som innefattar horisontal- och vertikalspolar, vilka var("era besta av en hela horisontalraden resp. vertikalraden omfattande spole och vid sina korsningsstallen omfatta kontakterna, vilka Aro forsedda med en magnetisk shunt, som innehaller en jarnkrets. En sddan anordning representerar en koordinatvaljare, sadan den anvandes i telekommunikationsanlaggningar, shrskilt telefonanlaggningar. En dylik koordinatvaljare visas pa principiellt satt i fig. 1 ph bifogade ritning. De ph dess korsningsstallen anordnade kontaktgrupperna 1-4 Oro uppbyggda av skyddsrorkontakter. KoordinatvAljaren innefattar horisontal- och vertikalspolar A, B resp. C, D (arbetsspolar), som bestã av var sin hela horisontalraden resp. vertikalraden omfattande spole och vid sina korsningsstallen omfatta den magnetiska kretsen for den ifragavarande kontakten. Arbetsspolarna Aro darvid sit anordnade, att en arbetsspole ligger pa vardera sidan om kontakternas arbetsluftgap. Genom magnetisering av en horisontalspole och en vertikalspole patryckes den pa korsningsstallet mellan dessa bA.da spolar anordnade kontaktgruppen ett magnetiskt flode, som dr tillrackligt for slutning av kontaktgruppens kontakter. For att det med sakerhet skall forhindras, att en ensidig magnetisering kan leda till att kontakter slutas, dr denna koordinatvaljare enligt huvudpatentet fOrsedd med i fig. 1 icke visade magnetiska shuntar, som vid ensidig magnetisering forsvaga flOdet i de ifragavarande kontakternas arbetsluftgap sit mycket, att deras slutande icke langre dr mojligt. Dessa magnetiska shuntar omfatta aven extra fasthallningsspolar, vid vilkas magnetisering slutna kontakter hallas i detta tillstand. Darmed erhalles en uppbyggnad, vid vilken den ena arbetsspolen ligger pa den ena sidan om arbetsluftgapet och den andra arbetsspolen samt fasthallningsspolen ligga pa den andra sidan om arbetsluftgapet. Vid de i fig. 1 visade fyra korsningsstallena Ar det endast fritga om ett exempel. Givetvis kan antalet korsningsstallen valjas godtyckligt storre. Inventor: R Nitsch Priority requested from 5 April 1957 (Federal Republic of Germany) The main patent relates to a device for electromagnetic actuation of contacts, the contact springs of which carry the magnetic flux which affects them, and which are arranged on the intersections in a cross-field, which includes horizontal and vertical coils, which were "" consist of an entire horizontal row or vertical row comprising coils and at their intersections include the contacts, which are provided with a magnetic shunt containing an iron circuit. Such a coordinate selector. Such a coordinate selector is shown in principle in Fig. 1 ph attached drawing. The contact groups 1-4 are arranged at the intersection stalls. , which consist of each its entire horizontal row resp. the vertical row comprising coil and at its intersections include the magnetic circuit of the contact in question. The work coils Aro are arranged so that a work coil is located on each side of the working air gap of the contacts. By magnetizing a horizontal coil and a vertical coil, the contact group arranged at the intersection between these two coils is printed with a magnetic flux which is sufficient for closing the contacts of the contact group. In order to ensure with certainty that a one-sided magnetization can lead to the closing of contacts, this coordinate selector according to the main patent is provided with magnetic shunts not shown in Fig. 1, which on one-sided magnetization weaken the flow in the working air gap of the contacts in question. their closing no longer dr possible. These magnetic shunts also include additional holding coils, the magnetization of which closed contacts are held in this state. Thereby a structure is obtained, in which one working coil lies on one side of the working air gap and the other working coil and the retaining coil lie on the other side of the working air gap. In the case of the four crossing stalls shown in Fig. 1, only one example is available. Of course, the number of crossing stables can be chosen arbitrarily larger.

I fig. 2a och 2b visas en for en sadan valjare avsedd kontaktgrupp, som besthr av fyra skyddsrorkontakter. Ddrvid visar fig. 2a en tvarsektion enbart genom kontaktanordningen och fig. 2b visar kontaktgruppen sedd fran sidan, varvid den magnetiska shuntens principiella anordning visas i sektion och de tre spolarna, namligen de bdda arbetsspolarna A och C och fasthallningsspoien H1, aro antydda med enkla lindningar. I hada dessa figurer aro de enskilda kontakterna betecknade med K och kontaktfjadrarna med F. Mellan de utskjutande andarna av kontaktfjadrarna F och de rorliga andarna av kontaktfjadrarna vid arbetsluftgapet aro de magnetiska shuntarna anordnade, som innehalla jarnkretsarna Ml och M2. Dessa jarnkretsar utforas lampligen sitsom platta platremsor, som for stadkommande av en god magnetisk forbindelse till kontaktfjadrarnas andar vid arbetsluftgapet icke anordnas endast pa tva mittemot liggande sidor av kontaktgruppen utan lampligen pa alla dess fyra sidor. Darigenom erhalles en fyrkantig bur, som omsluter kontaktgruppen. Figures 2a and 2b show a contact group intended for such a selector, which consists of four protective tube contacts. Fig. 2a shows a cross section only through the contact device and Fig. 2b shows the contact group seen from the side, the principal device of the magnetic shunt being shown in section and the three coils, namely the two working coils A and C and the holding coil H1, are indicated by simple windings . In these figures the individual contacts are denoted by K and the contact springs by F. Between the projecting spirits of the contact springs F and the movable spirits of the contact springs at the working air gap are arranged the magnetic shunters which contain the iron circuits M1 and M2. These iron circuits are suitably formed as flat plate strips which, in order to provide a good magnetic connection to the spirits of the contact springs at the working air gap, are not only arranged on two opposite sides of the contact group but suitably on all its four sides. As a result, a square cage is obtained, which encloses the contact group.

Om man delar en sadan anordning vinkelraft mot mittlinjen av kontakterna vid arbetsluftgapen, erhalles den i fig. 3 visade an- — — ordningen. De fyra skyddsrorkontakterna K aro inneslutna av de fyra platremsorna NiN4. If such a device is divided angularly towards the center line of the contacts at the working air gaps, the device shown in Fig. 3 is obtained. The four protective rudder contacts K are enclosed by the four NiN4 plate strips.

Av fig. 3 framgar utan vidare, att de yttre kontaktfjadrarna Fa ligga vasentligt narmare de mittemot liggande platremsorna NI och N3 an de inre kontaktfjadrarna Fi. Foljden darav ar en olikformig inverkan av den magnetiska shunten pa de enskilela kontaktfjadrarna. Till de yttre kontaktfjadrarna Fa existerar namligen en bathe magnetisk forbindelse an till de inre kontaktfjadrarna Fi. It can be readily seen from Fig. 3 that the outer contact springs Fa are substantially closer to the opposite plate strips N1 and N3 than the inner contact springs F1. The consequence of this is a non-uniform effect of the magnetic shunt on the individual contact springs. Namely, a bath magnetic connection to the outer contact springs Fa exists to the inner contact springs Fi.

Med ledning av fig. 4 fortydligas denna olika inverkan av den magnetiska shunten. Hiir visas endast en kontakt K i den i fig. 2b visade kontaktgruppen, mot vilken platen Ni anligger med en sida. Det mindre avstandet mellan den yttre kontaktfjadern Fa och platremsan Ni an mellan den inre kontaktfjadern Fi och denna platremsa A.stadkommer, att shunten olikformigt paverkar de hada kontaktfjadrarna. I forhallande till de inre kontaktfjadrarna Fi minskas saledes den magnetiska shuntens verkan pa icke onskvart satt. Based on Fig. 4, this different effect of the magnetic shunt is clarified. Here, only one contact K is shown in the contact group shown in Fig. 2b, against which the plate Ni abuts with one side. The smaller distance between the outer contact spring Fa and the plate strip Ni and between the inner contact spring Fi and this plate strip A. causes the shunt to have a different effect on the hated contact springs. In relation to the inner contact springs Fi, the effect of the magnetic shunt in a non-adverse manner is thus reduced.

Foreliggande uppfinning visar (fig. 1-9), huru denna olikformighet kan minskas i tillracklig grad resp. helt elimineras. Uppfinningen karakteriseras av att mellan de enskilda skyddsrkkontakterna i en. kontaktgrupp aro infogade magnetiserbara mellanlagg, som stracka sig genom kontaktgrupperna i nar.heten av arbetsluftgapen. The present invention shows (Figs. 1-9) how this non-uniformity can be reduced to a sufficient degree resp. completely eliminated. The invention is characterized in that between the individual protective contactors in a. contact group aro inserted magnetizable interlayers, which extend through the contact groups in the vicinity of the working air gap.

Motsvarande anordningar visas i fig. 5 och 6 i sektion vid arbetsluftgapet. I dessa figurer .visas aterigen kontaktgrupper med fyra skyddsrorkontakter. Kontaktgrupperna delas enligt fig. 5 medelst ett parallellt med kontaktfjadrarna forlopande mellanlagg Zp och enligt fig. 6 medelst ett vinkelratt mot kontaktfjadrarna fOrl5pande mellanlagg Zs. Genom lampliga magnetiska forbindelser till de kontaktgrupperna omfattande, de magnetiska shuntarna bildande platremsorna astadkomma dessa mellanlagg en god avledning av lackfladena liven frail de inre kontaktfjadrarna Fi. Lampligen lagras mellanlaggen i slitsar i de kontakterna omgivande platremsorna, varigenom en god magnetisk forbindelse erhalles. Corresponding devices are shown in Figs. 5 and 6 in section at the working air gap. In these figures, contact groups with four protective rudder contacts are again shown. The contact groups are divided according to Fig. 5 by means of an intermediate layer Zp extending parallel to the contact springs and according to Fig. 6 by means of an angle steering wheel towards the contact springs extending intermediate layers Zs. By means of suitable magnetic connections to the contact groups comprising the magnetic shunts forming the plate strips, these intermediate layers provide a good diversion of the lacquer surfaces from the inner contact springs Fi. The intermediate layers are conveniently stored in slots in the plate strips surrounding the contacts, whereby a good magnetic connection is obtained.

Vid anordningen enligt fig. 5 sta mittemot vardera av kontaktfjadrarnas breda ytor en platremsa resp. ett mellanlagg, sa att i detta fall en mera likformig verkan av den magne.tiska shunten an vid en anordning enligt fig. 6 utovas pa de bada kontaktfjadrarna for en kontakt. In the device according to Fig. 5, opposite each of the wide surfaces of the contact springs, a plate strip resp. an intermediate layer, so that in this case a more uniform effect of the magnetic shunt than in a device according to Fig. 6 is exerted on the two contact springs for a contact.

En kombination av anordningen enligt fig. 5 och anordningen enligt fig. 6 visas i fig. 7. Har fOrefinnas tva varandra korsande mellanlagg Zp och Zs, sa att for varje kontakt bildas en egen bur, som symmetriskt omgiver konlakten. Pa grund darav Sr har den mest Iikformiga verkan av den magnetiska shunten .pa. de enskilda kontaktfja.drarna forhanden. A combination of the device according to Fig. 5 and the device according to Fig. 6 is shown in Fig. 7. There are two intersecting intermediate layers Zp and Zs, so that for each contact a separate cage is formed, which symmetrically surrounds the contact. Due to this, Sr has the most uniform effect of the magnetic shunt .pa. the individual contact persons in advance.

Mellanlaggen kunna dessutom utnyttjas for uppnaende av en sarskild effekt, namligen att paverka den nodvandiga hallmagnetiseringen for fasthallningsspolarna. F5r detta andamal permanentmagnetiseras mellanlaggen parallellt med skyddsrorkontakternas mittlinje, sa att det darigenom alstrade lackflodet sinter sig Over arbetsluftgapet. The intermediate layers can also be used to achieve a special effect, namely to influence the necessary hall magnetization for the holding coils. For this purpose, the intermediate layers are permanently magnetized in parallel with the center line of the protective pipe contacts, so that the paint flow generated thereby sints over the working air gap.

Ett &admit permanentmagnetiserat mellanlagg kan man. anordna parallellt med eller vinkelratt mot kontaktfjadrarna. DA priset for 1 magnetiskt avseende hart material spelar en. viktig roll, Sr det lampligt att anordna det permanentmagnetiserade mellanlagget sa, att det utovar den hogsta mojliga verkan, varigenom man reder sig med relativt liten materialatgang. Detta fall fareligger, nar man anordnar det permanentmagnetiserade mellanlagget parallellt med kontaktfjadrarna, sasom visas i fig. 5. Sh.som lamplig kombination har en sadan anordning visat sig vara, som visas i fig. 7, vid vilken mellanlagget Zp bestar av i magnetiskt avseende hart material och mellanlagget Zs av i magnetiskt avseende mjukt material. An & admit permanent magnetized intermediate layer can be. arrange parallel to or at right angles to the contact springs. DA price for 1 magnetic regarding hard material plays one. important role, If it is appropriate to arrange the permanently magnetized intermediate layer, it is said that it exerts the highest possible effect, whereby one rides with relatively little material access. This case is dangerous when the permanently magnetized intermediate layer is arranged parallel to the contact springs, as shown in Fig. 5. As a suitable combination, such a device has been found to be, as shown in Fig. 7, in which the intermediate layer Zp consists of magnetic hard material and the intermediate layer Zs of magnetically soft material.

Verkningssattet hos ett permanentmagnetiserat mellanlagg forklaras med ledning av fig. 8. Har visas en skyddsrorkontakt K med en yttre kontaktfjader Fa och en inre kontaktfjader Fi. Ph den ena sidan om kontakten K ligger mittemot dennas arbetsluftgap platremsan Ni och pa den andra sidan det permanentmagnetiserade mellanlagget Zp. Fran detta mellanlagg utgar ett lackflode i de inritade pilarnas riktning, vilket sluter sig Over arbetsluftgapet, varigenom pa de hada kontaktfjadrarna utovas en. sammandragande kraftverkan, som emellertid icke racker till att ensam fastballa en sluten kontakt och pa grand da.rav mycket mindre att sluta en oppen kontakt. Om det av mellanlagget lamnade flodet i arbetsluftgapet forloper i samma riktning som det av fasthallningsspolen genom kontaktfjadrarna drivna flodet, understiidja bada verkningarna varandra, sIr att man vid anvandning av ett permanentmagnetiserat mellanlagg reder sig med en mindre hallmagnetisering for fasthallningsspolen. Ar det av mellanlagget lamnade flodet i arbetsluftgapet motsatt riktat mot det av fasthallningsspolen genom kontaktfjiidrarna drivna flodet, Okas den nadvandiga hallmagnetiseringen. Bada effekterna kunna i olika driftfall vara av betydelse. The mode of action of a permanently magnetized intermediate layer is explained with reference to Fig. 8. A protective pipe contact K is shown with an outer contact spring Fa and an inner contact spring Fi. Ph one side of the contact K lies opposite its working air gap plate strip Ni and on the other side the permanently magnetized intermediate layer Zp. From this intermediate layer a lacquer flow emanates in the direction of the drawn arrows, which closes over the working air gap, whereby one is exerted on the had contact springs. astringent force, which, however, does not suffice to fasten a closed contact alone and, on the whole, much less to close an open contact. If the flow left by the intermediate layer in the working air gap proceeds in the same direction as the flow driven by the holding coil through the contact springs, both effects each other, so that when using a permanently magnetized intermediate layer a smaller hall magnetization is provided for the holding coil. If the flow left by the intermediate layer in the working air gap is in the opposite direction to the flow driven by the retaining coil through the contact springs, Okas the present hall magnetization. Both effects can be important in different operating cases.

Lampligen anvander man for de permanentmagnetiserade mellanlaggen ett material, som later sig valsas och skaras, for att bearbetningen av platremsorna vid dessas formgivning skall underlattas. For the permanent magnetized intermediate layers, a material which can be rolled and cut is used in order to facilitate the processing of the plate strips in their design.

Fig. 9 askA.dliggor anordningen av de permanentmagnetiserade mellanlaggen i den i inledningen omnamnda koordinatvaljaren. Den visade valjaren har fyra korsningsstallen med var sin av fyra skyddsrorkontakter upp- — —3 byggda kontaktgrupp. Valjaren har saledes tva horisontalspolar A och B, tva dessa korsande vertikalspolar C och D och de hada fasthdllningsspolarna H1 och 112. De permanentmagnetiserade mellanlaggen bildas av platremsorna Zp1 och Zp2, som aro anordnade gemensamt for en vertikalrad. Med den ph. platremsan Zp1 inritade pilen antydes magnetiseringsriktningen i platremsan. Fig. 9 shows the arrangement of the permanently magnetized intermediate layers in the coordinate selector mentioned in the introduction. The selector shown has four crossing stalls, each with a contact group made up of four protective rudder contacts. The selector thus has two horizontal coils A and B, two of these intersecting vertical coils C and D and the had holding coils H1 and 112. The permanently magnetized intermediate layers are formed by the plate strips Zp1 and Zp2, which are arranged jointly for a vertical row. With the ph. plate strip Zp1 plotted arrow indicates the direction of magnetization in the plate strip.

Claims

Attention:

Device for electromagnetic actuation of contacts, the contact springs of which carry the magnetic flux which affects them, and which are arranged ph the crossing stalls in a cross-field, which comprise horizontal and vertical coils, each consisting of an entire horizontal row and the vertical row comprising coil and vertical row. their junctions include the contacts, which are provided with a magnetic shunt containing an iron circuit, according to patent 175 723, characterized in that magnetizable intermediate layers (Zp, Zs) are inserted between the individual protective tube contacts (K) in a contact group. extend through the contact groups near the working air gap.

Device according to claim 1, characterized in that the intermediate layers (Zpl, Zp2; Fig. 9) parallel to the center line of the protective pipe contacts are permanently magnetized ph such salt that the thereby generated flux closes over the working air gap.

Device according to claim 1 or 2, characterized in that the intermediate layers (Zp, Zs) are held in slots in the iron circuits.

Device according to any one of claims 1 to 3, characterized in that the intermediate layers are assigned to their respective coordinates in the cross-fold. Request Publications: U.S. Patent Nos. 2,187 11

5.