DE1813596U - ADHESIVE RELAY WITH PROTECTIVE TUBE CONTACTS. - Google Patents

Description

Siemens & Halske Munich 2, 5 June 1959

Aktiengesellschaft Wittelsbacherplatz 2

pa O *? a- * i ο

, 5 *

Latching relay with protective tube contacts,

Relays sometimes have to meet the requirement / respond to a current pulse and also after it has decayed of the impulse to remain in the addressed state = Such relays are usually referred to as latching relays =

A latching relay equipped with protective tube contacts is in described in the German utility model 1 761 294 »Here, parallel to the protective tube contacts, is a permanent magnet Sheet metal strip is provided, which is magnetized in the longitudinal direction of the contact springs = His PeId scatters to the contact springs and closes over their working air gap »Es

Bd / Schr

«Öacaen 2, May 2, 1960 ä / Bo

9/420/1630

has an olehe strength "that once addressed contacts remain in this state". This arrangement is brought into the referred state by an excitation winding symmetrically surrounding the protective tube contacts.

Ss has been found mm * that such contacts can be brought by an arbitrarily directed, supplied by ά "τ field winding excitation" to response, but requires' which ä9T supplied VOA permanent magnet pre-excitation in the opposite direction in the event of excitation, "in order to appeal in general, a very high, τοη the excitation winding to be supplied excitation must be applied "This possibility of response is undesirable in all cases" in which a latching relay is only to be made to respond by a current pulse in a very specific direction ""

The invention described below shows a way "how such a requirement can be realized · It therefore looks at a latching relay with protective tube contacts, since" has practically no response effectiveness for an excitation device and a gate excitation originating from a permanent magnet has "an addressed contact in this state holds »but cannot bring the contact to respond by itself *

The Eaft relay according to the invention is characterized in that

PA 9/420/1630

SaS for the contact spring enclosed by the excitation winding ^ *. ά% τ Sehutsroarkontakte a special magnetic return is provided *

Ia of Mg. 1 shows an arrangement constructed according to this principle. Shown is a reed relay t with the two Κontaktfedern and 2, which are embedded in a glass tube 5 · laterally of the working air gap 4 is "the exciting winding 5 is provided, which consequently only the contact spring 1 surrounds * Parallel to AESN contact spring !! 1 and 2, in the vicinity of the working air gap, a builder magnet 6 designed as a sheet metal strip is provided, whose magnetization, which runs parallel to the contact spring, is indicated by the poles 1Γ and S. Ton this permanent magnet intersperses üuß to άβη contact springs 1 and 2 * of "However, keep in responding state Can this not be responded · Now, if the coil 5 a current" ugefüart which causes excitement in the air gap 4, which by ά ^ η. Permanent magnet supplied gate excitation is rectified »so the contact is made to respond when the current is sufficiently large and after switching off the current through the gate excitation of the permanent magnet 6 held in the addressed state in ά9η contact spring »compensated *

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If you now apply a current pulse in the opposite direction to the winding 5 in the illustrated idle state of the arrangement, which thus generates a field opposing the field of the permanent magnet 6, this field is initially compensated in the working air gap 4, which does not cause any movement of the contact springs 1 and 2 If the current continues to increase, then the pre-excitation of the permanent magnet 6 is finally overcompensated, with a leakage flux generated by the winding 5 also becoming stronger and stronger _? the. scattered away from the contact spring 1 in the area between the winding 5 and the working air gap 4. If, in particular, the contact spring Ί in the area of the winding 5 reaches its saturation before the response flux is reached in the working air gap 4, the flux in the spring 1 cannot increase further even if the current in the winding 5 rises further an increase in flow is not possible in the working air gap 4 and consequently the contact cannot be made to respond by a current pulse in the direction under consideration, regardless of the size of the current pulse «

The effect of scattering the generated by the excitation winding 5 One can expediently flux by attaching a special magnetic return path for the from the, excitation winding Support 5 enclosed contact spring 1. Such a Conclusion is in the arrangement according to Figure 1 by the Sheet metal strip 7 is shown, which the contact spring 1 impressed flux, generated by the winding 5, even before it is reached of the working air gap 4 derives as a leakage flux in the arrow direction shown and to the fixed end of the

~ 5 ~ PA 9/420/1630. /

Contact spring 1 attributed In this way it is achieved ζ that only a relatively small proportion of the Erregerwick- [ '5 lung supplied flux across the working air gap 4 gearbox: is ben. However, this proportion is sufficient to ensure contact with the

Bring appeal when he's in the same direction as that; The pre-excitation supplied by the permanent magnet 6 runs »

In the Pig "2, another type of arrangement of the permanent magnet is shown ο Here, the permanent magnet is in a fixed contact spring ends connecting magnetic return - set circuit" The permanent magnet 8, the polarity is indicated by the poles N and S, delivers a flow , which closes essentially via the magnetic yoke 9, the contact spring 1, the working air gap 4 and the contact spring 2 (see arrows drawn one behind the other) 5 of the contact spring 1 is pressed a flux running in the same direction, then to the continuous flow supplied by the permanent magnet 8 in the working air gap 4 there is a proportion which, together with the continuous flow, causes the contact to respond Contact springs

ι 1 and 2 driven flow ratio due to the omission of the working air gap is greater, whereby the holding effect supports wird- If, however, generates a flow in the opposite direction through the field winding 5, as in the working air gap, no response can of contact effecting Direction river _s arise because in this case before reaching the response flow of through

- β - PA 9/420/1630

the dashed arrow indicated leakage flux, which of the contact spring 1 to the magnetic return. 9 scatters away, reached such a value that in the working air gap 4 no remains for addressing sufficient flux proportions. in the the rest of the above may be mentioned here described way the saturation in the contact spring 1 from.

In the construction shown in Seitensicnt in FIG it can also be a relay with several, arranged side by side Acting protective tube contacts that have a common magnetic yoke and accordingly a common Permanent magnets are provided, in this case the latching relay effect extends to all contacts of the relay

However, it is using the inventive principle too possible. to provide the latching relay effect only for some of the contacts of a protective tube contact relay »line corresponding Construction is shown in FIGS. 3 and 4, with FIG. 3 showing a protective tube contact relay in side view and FIG. 4 the same relay in plan view shows »As can be seen, be-r · sits the relay shown in these 'figures d four contacts 10, 11, 12 and 13, of which the contacts 10 and 11 have a common Have magnetic yoke 14, in which, however, no permanent magnet is contained «For the contacts 12 and 13 equipped with a magnetic yoke 16 containing a permanent magnet 15. As a result, the Holding relay effect only on the two contacts 12 and 13 "

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Pig »5 also shows how to use a protective tube contact relay with four contacts 17? 18, 19 and 20 individually Provide a separate magnetic return path for each contact can, which is only a permanent magnet in the case of contacts 19 and 20 contains, namely the permanent magnets 21 and 22 ■> These permanent magnets are polarized in opposite directions ο as a result does this relay have the following effect? First of all, the adhesive effect extends only to the contacts 19 and 2Oo These two contacts only speak when they are opposite Direction of current through the field winding 23 anο "In the One current direction therefore results in the contacts responding 17 and 18 and for example the contact 19? in the other ^ ren flow direction then the response of the contacts 17? 18 and 20 »

spray before
5 figures

Claims (1)

P.Ä.27775ö * -i5.60 i.n. ^ i ν iBürth «a 2» the 2nd Mad I960 M / Thu m f / 42O / 1i3O M. Ä W light sofa utzana claims 1 · Detection relay old Sciitttarokrkontakteii, which has practically no response for an excitation direction and has a Yorerreguag originating from a permanent magnet, which maintains an appropriate contact in this state, but can not bring the coatact itself out for the »lasusprecjiem from & * r exciter winding ufflechloseen contact spring », which is Sohuterolarkontaucte elm special magnetic return gate open · 2 * Haftrelal "according to claim 1, characterized in that in all of an excitation originating from the excitation winding" soft against the gate excitation; is directed, the resulting JPlufi la the τοη of the excitation winding fold over the contact spring reaches the saturation limit »beror see the response flow Ik working air gap adjusts * 3 «latching relay according to one of the gate-related claims» thereby characterized in that dear permanent magnet from a parallel to the Contact springs arranged in the vicinity of the * working air gap, sheet metal strips magnetized in the longitudinal direction of the contact springs beeteht " 4 * latching relay according to claim 1 or? 2, characterized in that PA 9/420/1650 • 9 - the permanent magnet in one of the fixed contact spring ends. connecting magnet laugh inference is used 5 · Detention relays were named after one of the preceding claims It is understood that an individual relay is used for the contacts aagaetisohe HüokeoKlüaae with uad oiise eijagesetztea Dau # 3magnetea are provided » · *? · Π ¹ * «*! Document (description and protection claim) is the last one submitted! she deviates from the word " · ■■ · "■; ■> .Uoii submitted documents. The legal meaning of the AV-wtf-inoj is ni / H gfpri /? ·; . . ^ - <ίη documents are in the Amf files. S> e can; ■ ■ ·.-Cf », rf». ·, H'.ehy / j? , iv .: - ssas can be viewed free of charge. Upon request, a * -. I. r "otükef-ft"et'fif Fllift " . ■ »- ,, u» i.-iäien Pi Jen delivered. German Patent Office, use * fmiSfer * fell <h