SE441402B - ELECTROMAGNETIC RELAY - Google Patents

Description

l0 15 20 30 35 78111094: reasons occur to a greater extent than what is required for the contact itself.

In addition, the relatively large distance between the ends of the pole shoes and the end of the winding space causes scattering losses, thereby reducing the efficiency of the relay. It is admittedly known to increase the efficiency of the magnetic system through larger polytes, but due to the large polytes adjustment problems or smaller creep distances occur. the connection end of the current-carrying pole shoes.

The object of the invention is to provide a relay of the type indicated, the contact system of which is particularly accessible for cleaning, and which can be problematic without the aid of fillers. and economically mass-produced and sealed to the environment.

According to the invention, this object is achieved in an initially indicated electromagnetic relay by the permanent magnet closing the end of the space formed in the coil body where the magnetic chamber is located, and that actuatable means are arranged in said space.

In a preferred embodiment of the invention, the permanent magnet has a surface facing the contact chamber which is made of a material which can be activated to act as goats.

Through the flushing body open on both end sides, cleaning or degassing of the contact chamber and the protective pipe can be carried out very efficiently. The cleaning is in any case necessary to remove contaminants from the contacts during manufacture, for example by organic deposits originating from adhesives or gas evolution from the flushing body. The cleaning takes place immediately before the hermetic closure of the contact chamber, for example through the permanent magnets, and is thereby of significant importance for the contact properties of the relay.

To ensure large contact forces, the pole shoes with their bent ends with relatively large polytes extend parallel to the contact tongue up to the area with little spread in 10 20 25 \ ¿__, * Ii u: Q gl X.

Qi? J end of the winding chamber. An advantage is that adjustment of the poles is unnecessary despite the large polytoren, as pølstørne gets eirt. earelzt position through the form-bound embedding in szgolširoppezu; In a preferred embodiment of the invention, in this case, the ends of the poles located in the middle of the permanent magnet are embedded in the walls of the magnetic chamber so that van slos on both sides have exposed portions which are spaced apart from each other, the the freeing parts of the pole shoes in the magnetic chamber lie in the F of the end portion of the coil body.

The contact distance is determined by die casting of the staircase by a spacer of a certain width. The heights of the poles are pressed from opposite sides of the said layer by side supports or side pistons which are conveyed with 3- J 1 J = straight reproduced. In a further embodiment of the invention the single bent end of at least one of the pole shoes and / or the free ä1 «The rolled-up or rolled-up contact material laid down by the contact tongue located in the middle of said pole shoe.

Due to the bent ends of the peleke: w ~ - etøra polytorna due to the bent ends, the magnetic forces are also increased, so that in addition to g '# 37 "* e relays of similar construction have no steel» 1 _,., »- kroöä without using an edge encapsulated in a glass tube- which ~ fornae as a so-called Dual-inline housing, in the following be 0 a magnetic system can be provided.ommas which combines the advantage a lan glacapsulated contact (from the game winding separate kea «tektrunš and the advantage of the relay magnet system (greater nagnet ~ and contact forces), and which further allows combinations with permanent magnetic overlays, whereby neno «â hi ~ ß.- and tristable contact lorhold can be achieved. 10 15 20 25 50 78l1¶09 = 5 4 Such a relay is for example so arranged , that game connections and / or contact connections extend out of the coil body on opposite sides thereof and are bent in one direction. s for connection of the relay, whereby at the same time an electrical control of built-in relays from more than one side is possible. from the spool body on both sides provided with exposed portions suitable for welding connection of the winding wire, and a contact carrier is provided with exposed portions projecting from the end side of the spool body for connection by spot welding the root end of the contact tongue. The exposed portions are then designed so that the electrodes on a spot welding apparatus can be moved to the welding site without difficulty. In order to simplify the work with the sheet metal blank for the contact or coil connections, the live pole shoes can also be welded to their contact connections before embedding. In this case, it is possible to use as material for the sheet metal, for example, nickel silver, which without galvanic treatment is solderable and corrosion resistant.

In a further embodiment of the invention, two substantially identical covers of artificial material are arranged to enclose the winding of the coil, which covers in the exit plane of the contact and coil connections are glued together or welded together. The sections of the contact or coil connections that are exposed for spot welding are gripped by the covers, which are welded together with the coil body or glued to it.

In this way, a complete closure of the coil winding is achieved in a simple manner and, in addition, a stabilization of the relay against mechanical action.

Instead of covering the winding of the coil with said covers, the winding can also be surrounded with art material along the outer contour of the flanges of the coil body. By means of such a casing, the shape usual for a DIIfhus is preferably obtained.

In order to provide a relay with a center-rest position of the contacts, according to the invention the contact distance determining the distance between the bent coated ends of the pole shoes can be selected so large that the contact tongue in the case of a de-energized relay is lifted. from the fixed contacts and is in the middle position. In this case, for example, the permanent magnetic force acting on the contact tongue during contact can be greater than the return force from the resilient contact tongue. To return the contact tongue in the middle position, a coil magnetization with a determined polarity is required which produces a force effect exceeding the difference between the permanent magnetic force and the return force. For contacting with a fixed contact consisting of the bent end of the pole piece coated with contact material, more powerful magnetization of the coil is required than that required for transfer to a neutral central position.

The relay thus designed is characterized by three rest positions of the contact tongue. The center position of the contact tongue in the case of a de-energized relay is determined, for example, by adjusting springs arranged on either side of the contact tongue.

In a suitable embodiment, the adjusting springs abut under pretension with their ends directly or via support plates partly against nose-shaped projections and partly against the side walls of the cavities arranged for the springs. The support forces from the adjusting springs are separately adjustable by adjusting means for displacing support plates which abut against the side walls of the cavity. Such an adjustment can be carried out, for example, in one or the other direction of force, for example by means of an adjusting screw, but also indirectly by adjusting the contact tongue at its root end.

The adjusting springs can be designed, for example, as helical, helical or telescopic springs or as S-shaped curved leaf springs arranged at the end of the contact tongue.

In all these cases, springs with the desired flat spring characteristics are obtained, so that the adjusting forces are accurately adjustable.

Two nose-shaped projections can be arranged on either side of the contact tongue, which projections lie in the plane determined by the center position of the contact tongue, the thickness f of the projections in the direction of the force exerted by the adjusting spring slightly exceeding thickness g of contact. -tongue.

As a result, the switch-on values of the relay in both coupling directions can be set more easily than if no defined center position stop for the end of the contact tongue were provided.

The central position described above can also be achieved without the use of support plates in that the adjusting springs in their end portions are bent at right angles, so that they abut with their end sides both against the side wall of the spring space and also against the nose-shaped projection or contact tongue, the portions of each adjusting spring bent at right angles are 90 ° offset from each other and grooves are formed in the side wall of the cavity of the adjusting spring for receiving a portion of each adjusting spring bent at right angles. An adjusting spring thus designed is stored in its cavity almost frictionlessly and only needs to be inserted in said compartment during manufacture.

In a further embodiment of the invention, a distance b is arranged between the permanent magnet and the opposite end of a pole shoe and / or a separating plate of the thickness d is arranged at the bent end of this pole shoe, which distance and thickness is greater than the distance c between the opposite end of the permanent magnet and the opposite end of the second pole shoe and / or the magnetic air gap e 'formed by the contact material coating on the bent end of the other pole shoe and on the contact tongue, the opening or closing function only is determined by the polarity of the excitation voltage of the coil and the bias voltage of the resilient contact tongue.

Through these measures, the contact distance and / or contact forces at the same excitation effect can be increased or the switch-on sensitivity can be increased. In the first case, greater coupling power and voltage strength are obtained, in the second case power saving.

The permanent magnet arranged in the magnetic chamber can consist of barium ferrite or a so-called rare earth and be activated as goats. This ensures that any gases in the contact area during operation and the gases affecting the contact properties are safely adsorbed. Furthermore, it can be advantageous to coat the space provided for the contact tongue, which has a relatively large surface, with getter material selected for adsorption of special gases. For adsorption of nitrogen, for example, zirconium hydride was used. Utilizing the surface of the \ m v..s in “L EG 25 see see .rå ... å f == ¥ C: ss 1 es ~ a toatakt ~ tongue intended space comes, for example, in I 'divided parts flush bodies. The activation of the pe * = earned goat material takes place in a vacuum at li lt under simultaneous heat exposure. In this case, flushing of the flushing can take place. Of particular advantage «'<1 H» 54-' f. Get »* '25 n-» i .v that for the adsorption of noxious gases the getter material is in the immediate vicinity of a os: thereby becoming particularly effective. In other words, the permanent magnet is attached to the contact chamber. By using such a double-sided foil, the application of an adhesive, which would make it technically more complicated and also cause glue drops containing solvents to fall out outside the sizing surface. a further embodiment of invention law. lføzrizalrtrumn1et and magnetkamnxaren arranged space. for a molecular filter or an additional getter, the filter and said additional goats and / or the magnet are fixed by thermal deformation of the coil material consisting of the end wall of the coil body and the said outer working steps, respectively, thereby completely eliminating gluing. In a further embodiment of the invention, recesses on the underside of the spool opening are provided by the Igarma and the spool connections, respectively, and these recesses are partially filled with casting resin. By means of this method a special heat-resistant embedding is formed for the edges of the edges, so that these connections' LJC * * for nermetic sealing of the contact chamber, _ with shielding gas, are one of artificial materials and adapted to the contour of the flanges of the flushing body. seal: cover welded to the end face of the s3cl ~ Lroppenv facing away from the contact chamber This measure is particularly economical, especially for ultrasonic or mirror welding, and has the addition of no solvent-containing adhesives for »20 25 ÉO 55 8 78¶HÜ9 ~ 3 were used, with which the atmosphere of the contact room could be polluted. In addition, a relay surrounding cover can be provided, the gap of which to the coil body is filled with cast-in mass. Said cover can then consist of ferromagnetic material and at the same time serve for magnetic shielding and flow control. Finally, with regard to the use of the relay in printed connections, it may be expedient for the contact connections and coil connections projecting from the relay to be arranged in so-called 5 mm raster device in relation to each other.

The invention is described below in the form of exemplary embodiments and with reference to the accompanying drawings.

Fig. 1 shows a section 4-1 'through the relay with coil body shown in Fig. 5 in one piece. Fig. 2 is a section 2-2 ', Fig. 5 a section 5-3' and Fig. 4 a section 4-4 'through the relay shown in Fig. 1. Fig. 5 sohematically shows a pole relay with a central resting position of the contact tongue. Fig. 6 shows a suitable relay with a working contact (shutter). Fig. 7 shows the same device as in Fig. 6, but with a rest contact (opener).

Figs. 8 and 9 show two halves of a coil body with embedded É contact and coil connections and pole shoes. Figs. 10-15 show the sections 10-10 'to 15-15' of a relay constructed in the Dïl system, whereby a coil body serves as a protective pipe, contact and connection carrier. Fig. 16 shows in perspective two identical center position springs for the relay shown in Figs. 10-15, which springs are hereinafter referred to as adjustment springs. Fig. 17 is a detailed section serving to clarify the mode of action of the adjusting springs.

Fig. 18 is a section through a relay according to 15-15 'in Fig. 15, but with a magnetic shielding cover and on one side projecting contact and coil connections. Fig. 19 shows a force diagram.

The sections shown and their position are denoted by mutually equal numbers.

The relay shown in Figs. 1-4 has a coil body 1 in one piece of artificial material, the inner teeth of the coil body acting as protective tubes 2, in which a contact tongue 5 is arranged. The center contact connection is embedded in the flush body flange 33 as contact carrier 40. The contact carrier 40 is bent in its end portion and the male-exposed sections 41, 41 'of the contact tube 5 K and 5 are KH ¿_.-. Ü 50 aim Totände 42, # 2 ", exem elvís vanan nunktsveë .JJ ~ = opposite coil body flange are pole shoes 6 and 7« * '' x sausage shoes have end portions 18, 19 which are bent towards «w« in the middle and extend parallel to the coil 2> are í fl embedded in the flushing body and provided with in fl ~ ra- «2 fi åvalsat contact material 20. uensm dv ddsröret 2, kontakttrumm 8 and m. _ Extend from the end side 14 to the end side 1 ü so that the contacts 20 and the entire 29. They in the flange body flange 55 'ínbáaáad? has on both sides exposed section 21, loosely spaced a relatively var2¿ä? a @ gde section as well as the distance a required for Ü .- _ øch mëå kqn ~ uüpressning. Hbt the exposed section ø, "~ = vpmmkmma6.7. than the coil body 1 has been provided with linen: -ia connected to the coil connectors '>, J fi akt-tongue 5 between the ends 42, 42 "" _¿íulgt kßntaktviloläge respect: / ß central filfl n Y fi f-zl -' ya intended use. anslu fi or rare earth consisting of permanent mawneten lv geutsrl Läræfter the said vacuum is replaced by a so-called "ørmaltrycï (approx. 760 Torr) and protective pipe fi - respective mirror welding. In order to increase the effect of the ultrasonic welding of the sealing cover 54 to the flushing flange 55, this is provided along the circumference with a shoulder 59 in the middle of the shoulder surface of the sealing cover 54, against which the support surface of the ultrasonic welding apparatus abuts.

For magnetic shielding and increasing the magnetic efficiency, the relay is surrounded by a cover 57 of ferromagnetic material, which is held by a cast filler, for example a casting resin known under the trade name "Araldit", whereby at the same time the density and the mechanical and functional The stability of the relay is considerably increased. If the coil body 1 consists of a thermoplastic, it is suitable to arrange recesses 51 around the contact and coil connections 4, 4 ', 4 ", 5, 5', 5", which are at least partially filled with mentioned filling material 58, as this has better dimensional stability than the thermoplastic and the correct position of the contact and coil connections is ensured even in the event of abnormal heating during soldering.

In the coil body flange 55 'a space 60 is formed, which extends from the coil connection 5 to the coil connection 5' and is intended for building elements, such as for example diodes or resistors. When the getter action of the activated permanent magnet 15 may be insufficient and in any case a certain distance is required between the permanent magnet 15 and the polytes, an additional space 50 is arranged therebetween, in which a special getter or a molecular filter is arranged. said goats, the inner space of the flushing body serving as a protective tube can also be coated with a getter material before mounting the contact tongue, as is practiced, for example, when coating with steam on electron tubes. Such a measure prevents gas escape from art materials and thus increases the reliability of the contact.

For a relay with double-sided or central contact rest position (Fig. 5), the permanent magnet 15 is located between the two pole shoes 6, 7 with the distance c required for raising the electrical insulation. In a relay with one-sided contact rest position of the switch (Fig. 5) respectively a working or rest contact (Fig. 6 and Fig. 7) is a distance b arranged c -_- L) h: \ Yï | '_ f! CJ I 'Q-' xfí \; N x.) Than kf: "ElÛW-'å 11 between fi n fi ermanent magnet lay and the connection end 10 of pfl 7§ Which: distance is greater than the distance c. For use of the relay with only one working contact ( Fig. 6) it is left stable and reduces the adhesive force. lå likn: ~, f. The thickness of the contact material coating is adjusted as the rest contact according to Fig. 7.

Fig. 8 and 9 show one of two connecting flush bodies 1 ', 1 "connecting to each other, consisting of chemistry of the halves 1', 1" separating the webs 3? E 55 along planes marked by punküstreeked U; 631 5l ', whereby the connections become free from varaz * 3 the case shown are those as contact carriers free of the f "' ea 41. 41 'constituents of the contact connection' f2 ._ J ° f at sa d; me fl sioned that its cross section is less than 7 ~ ss height, however, exceeds the depth of groove "=; e1ser of the two coil body halves 1", 1 "k« llín-ß fi thick welding by deformatíoïl of (r ff _: L primarily applies to achieve a defined aj so is during welding a mounting spacer with a path s determining thickness interposed between the cmvi «18 of a pole piece and the one towards the end 19 of the opposite free end 9 of the contact tongue 5 (compare - 1 equalization of the coil body halves 1 ', 1" tolerances o with "as an epole body l. In the Dllrhuset embedded shields" known, for example, by the U.S. patent specification, the disclosure specification 2,049,095. These are in a glass protective tube existing contact, a coil winding is provided and the connections of which are connected to a so-called relay carrier. The whole arrangement ä r i For: Bllfhus indicated by a mantle of art material. In the case of 10 20 25 50 55 12 78111Ü9 = 5 relays of this kind, it is not possible to adjust or set the characteristics of the relay, nor is it possible to achieve a sensibly arranged interaction of magnetizing and permanent magnetic fields, whereby economic control by means of impulses for mono- and bistable operation, large contact forces at low magnetizing power and setting of central rest position of the contact tongue could be achieved. In this case, according to Figs. 10-15, the contact connections 4, 4 ', 4 "and the coil connections 5, 5', 5" extend to the side out of the coil body 1 and are bent in one direction after embedding. The further construction of the relay takes place in principle in the same way as the construction of the relay according to Figs. 1-4. In order to easily connect the ends of the coil winding 45 with the coil connections 5, 5 ', 5 ", these are provided with exposed section 59 on both sides when leaving the coil body 1, so that connection can easily take place by spot welding. the contact carrier 40 provided with exposed sections 41, 41 'extending out of the ends of the coil body 1 for spot welding to the root ends 42, 42' of the contact tongue 5. The current-carrying pole shoes 6, 7 provided with fixed contacts 20 are connected before embedding with associated contact connections 4, 4 ', preferably by spot welding To protect the coil winding 45, two suitably internal covers 44, 44' are provided, which are glued or welded together in the exit plane of the contact and coil connections 4. 5. By conical design of the surfaces of the coil body flanges 55, 55 'delimiting the winding space, it is also possible to provide a welded connection of the covers 44, 44' and the coil flanges 55, 55 '. may also be designed to cover the exposed sections 59 (fig. l2 and 15). Fig. 14 alternatively shows a jacket 62 around the winding 45 either corresponding to the outer contour of the spool body flanges 55, 55 'or a complete enclosure of the spool body 1. In contrast to the embodiment according to Figs. 8 and 9, here they are on the sheet metal blank 55 existing coil and contact connections 4, 5 are bent, for example, so that they surround the protective pipe 2 at the coil flanges 55, 53 ', the punching out of the a - connections from the sheet metal blank here takes place after the bending.

As an alternative to the embodiment shown in Figs. 10 to 15, Fig. 18 shows a relay with one side exiting and I-f _ UI Ü -aß f \ _ '; KR 'then KT; VßHHW-É 15 on. In this case, the available space for the magnetic system and a continuous ferromagnetic cover 57 can be better utilized. Also, the contact tongue 5 can dimension a knob and in the middle be provided with a slot 63 to provide a double contact. For fixing, mechanical stabilization, mounting of the cover 57 and better sealing, the cavity between the cover and the relay body is filled with casting compound 58. The previously used indie relays are suitable for one-sided and two-way contact mode. If a relay with a defined contact surface 5 is desired, support plates e5 ', 47' are arranged on both sides of the contact tongue 5, which are supported by means of adjusting springs ii-5, 12-5 ': not nose-shaped projections ILS, 48 17, with its other ends pressing the adjusting members 45, 45 'against further support plates 46, 47 which abut the side walls 49, 49' of the coil body. 1 or against iC »ha 'D adjusting means 51, 51', for example adjusting screws. It is then instructive to make the thickness f of the projections 48, 48 'slightly greater than the thickness g of the contact tongue 5. A suitable design of the adjusting springs 45, 45' is shown in perspective on the fia. 16, while the springs are shown in the mounted condition on bent sections 55, 55 ', which are offset 90 ° relative to each other and take over the function of the support plate A6 (Fig. 17). Gutters 56, 56 'for accommodating the sections 55 of the adjusting springs are formed in the side wall 49, 49' of the space 50 arranged for the adjusting springs. An adjusting spring of this kind only needs to be inserted in the space 50 provided for the spring, as the spring is also held laterally against the inner wall of the coil flange 55 and the permanent magnet 15 through the non-resilient section 55 which is slightly wider (iir 16). The force diagram obtained is shown in Fig. 19. The force P a- i aiiällr 1151 ombra J; 1, the course of the permanent magnetic force across the path s of the cash tuner 5 in the unmagnetized (de-energized) state and the force P4 show the total magnetic force action on the magnetization of the relay.

P2 is the F ~ evening acting against the magnetic force from the contact force 5 and P3 is the adjusting springs 45, 45 'developed 14 7811109 = 3 l of the force. The path h, where the force action of the adjusting springs # 5, 45 'sets in, is obtained from the difference between the thickness of the projections 48, 48' and the contact tongue 5 (h = f - g) ~ c ..

Claims (3)

1. w Û 25 30 15 7811109-3 CLAIMS 1. Electromagnetic relay with a coil body surrounded by a coil in which a protective tube, a contact chamber and a magnetic chamber are successively formed which together form a space open at both ends through the entire coil body. length, a contact tongue arranged in the protective tube which extends through the protective tube and with its free end reaches into the contact chamber, a pair of pole shoes having their outer ends located opposite and in the immediate vicinity of a permanent magnet arranged in the magnetic chamber. and the inner ends of which extend into the contact chamber and there form fixed contacts for co-operation with the free end of the contact beam, and a sealing cover for closing the magnetic chamber opposite the end of the space formed in the coil body, characterized in that the permanent magnet ( 13) closes the end of the space formed in the coil body where the magnet 'chamber (12) is located, and that as goats active only means are arranged in said space. 2. An electromagnetic relay according to claim 1, characterized in that the permanent magnet (13) has a surface facing the contact space (8) which is made of a material which can be activated to act as goats. 3. An electromagnetic relay according to claim 1, characterized in that the ends (10, 11) of the pole shoes (6, 7) located in the middle of the permanent magnet (131) are so embedded in the wall of the magnetic chamber (12) that each pole shoe (6,7) CV sr on both sides exposed sections (21,22,23,24; which are; offset from each other by a distance (a), and that the exposed sections (22,24) of the pole shoes in the naanet chamber (12) lies next to the end side (14) of the coil 4. Electromagnetic relay according to claim 1, characterized in that the bent end (18, 19) of at least one of the pole shoes (6, 7) and / or the free the end (Ü) of the contact tongue (3) located in the middle of said pole shoe is bv- 1 bearing with rolled-in or rolled-up contact material (20) 10 15 20 50 55 16 78111Û9 = 3 5.5 Electromagnetic relay according to claim 1, characterized in that the coil body (1) is dimensioned as a so-called dual-in-line housing 6. Electromagnetic relay according to claim 5, characterized in that the coil and / or contact the slopes (4,4 ', 5,5') extend out of the coil body (1) on opposite sides thereof and are bent in one direction. Electromagnetic relay according to Claim 6, characterized in that the coil connections (4,4 '), when exiting the coil body (1), are provided with exposed sections (59) on both sides for connecting the winding wire of the excitation coil (58). ). An electromagnetic relay according to claim 1, characterized in that a contact carrier (40) with exposed; from the end portion of the flushing body (1) projecting section (41) is arranged for connection by spot welding of the root end (42) of the contact tongue (5). Electromagnetic relay according to Claim 1, characterized in that the current-carrying pole shoes (6, 7) are welded to the associated contact connections (4 @ 4 ') before embedding - 10. Electromagnetic relay according to Claim 9, characterized in - in that two substantially identical coil winding (45) covering half shells (44, 44 ') of plastic material are arranged, and that these half shells are glued or welded to each other in the exit plane of the contact and coil connections (4,4'). , 5¶5 ') - 11. An electromagnetic relay according to claim 10, characterized in that the sections of contact or coil connections (59) which are exposed to spot welding are also held by the half-shells covering the coil winding (45). (44 , 44 '). Electromagnetic relay according to Claim 1b, characterized in that the half-shells (44, 44 ') covering the coil winding (45) are welded together or glued together with the coil body (1). 13; Electromagnetic relay according to Claim 1, characterized in that the winding (45) of the coil is surrounded by a sheath of plastic material in accordance with the outer contour of the flanges of the coil body (55). 1.4 * Jl u: O nx 'få' 1109 - “3 17 14. Electromagnetic relay according to Claim 1, characterized in that the inner ends (l8, l9) of the pole shoes (6) coated by contact material (20) ,?) formed con »J .. the stroke distance (s) is selected with such a size that the contact (5) in the case of a powerless relay is lifted from the fixed edges * H is in a middle position. An electromagnetic relay according to claim 14, characterized in that the permanent magnetic force acting on the contact with the contact is greater than the magnetization of the coil of a certain polarity required to return the contact tongue to the center position, which magnetization has a force exceeding the difference between the permanent magnetic force and the feedback force, 16. An electromagnetic relay according to claim 15, characterized in that for contacting an RV the inner end (l8, l9} of the fur sheath (6,7) coated with contact material (20) A stronger coil magnetization is required than for transmission to a neutral center position 17. An electromagnetic relay according to claim 14, characterized in that the center position of the contact tongue (5) vii dromeless relay is determined by on both sides of the contact wtine v. 1 S arranged adjusting springs (45, 45 ') 15. An electromagnetic relay according to claim 17, characterized in that the adjusting springs (45, # 5') abut in the clamping voltage. with its ends directly or over the support pïaätcr (46,45'9d?, 47 ') partly against the nose-shaped outer surface fi (48,4B') and is against the eide walls (49,49 ') of the hole (SO) arranged for the fathers. , 19, Electromagnetic relay according to claim 18 "k" according to the fact that the support forces from the adjusting elements (45, 45 ') are separately adjustable by adjusting the support plates (46, 5l') 'of the support plates (46, 4)? sidøväç ~ re lälrummet (50). 206 An electromagnetic relay according to claim 17, characterized in that the adjusting springs (45, & S ') are coil, helical or telescopic springs. 21r Electromagnetic relay according to claim 17, characterized in that the adjusting springs are arranged as E3-shaped curved leaf springs (52,52 ') at the free end (9) of the contact tongue. (5). Electromagnetic relay according to Claim 18, characterized in that two adjacent nose-shaped projections (48, 48 ') are arranged on both sides of the contact tongue (5) and that these projections lie in the central plane of The contact tongue (5). Electromagnetic relay according to claim 22, characterized in that the thickness (f) of the projections (48,1L8 ') in the direction of the force exerted by the adjusting springs (45, 45') slightly exceeds the thickness (g) of contact -tongue (5). Electromagnetic relay according to Claim 13, characterized in that the adjusting springs (45, 45 ') are bent at one end at right angles, so that they abut with their end sides both against the side wall (49, 49') of the cavity (50) as well as against the projections (48,48 ') or the contact tongue (5). 25. An electromagnetic relay according to claim 24, characterized in that the sections (55, 55 ') of the respective adjusting spring (45, 45') bent at right angles are mutually 90 ° offset. 26. Electromagnetic relay according to Claim 24, characterized in that the recess (50, 5 ') provided in the side wall (1, 9, 9, 9, 9') of the cavity (50) provided for the adjusting springs (45, 45 ') for receiving a section (55) of the respective adjusting spring (45,45 ') bent at a right angle. 27., Electromagnetic relay according to claim 1, 1 - characterized in that there is a distance (b) between the end (10) of a pole (7) located in the middle of the permanent magnet (13) and the permanent magnet, and / or that a separating plate (27) of thickness (d) is provided at the bent end (19) thereof. pole shoe (7), which distance and thickness, respectively, is greater than the distance (c) between the end (ll) located opposite the permanent magnet fl netezz (15) of the second pole shoe (6) and / or the magnetic air gap (e) resulting from the thickness of contact material inserts (20) on the bent end (18) of this second pole (6) and on the contact tongue (island), and that the function at opening or closing is determined only by the polarity of the coil's excitation voltage and bias voltage. sensing-sensing-sensing- 1. :: ev 7i'ß11lÜ9 "5 19 one of the resilient contact tongue (5). 28. An electromagnetic relay according to claim 2, characterized in that it is connected to the contact chamber (8). The permanent magnet (15) arranged in the green magnetic chamber (12) consists of barium ferrite or a so-called rare earth type. 29, Electromagnetic relay according to claim 1, E is characterized in that the permanent magnet (Sat) is attached with a double-sided foil (28). ) on the abutment surface (16) towards the Ecomtar chamber (8), and that this a foil (28) is adapted so that it extends substantially only over the permanent magnets »à cD få '<1 wr 30. Electromagnetic relay according to claim 1, characterized in that between the contact chamber (8) and the magnetic chamber (12) is provided one for receiving a molecular filter 31. An electromagnetic relay according to claim 1, characterized in that the molecular filter and said additional goats and / or permanent magnet (15) are attached by thermal deformation of the end portion of the of art material consisting of the apollo body (1). An electromagnetic relay according to claim 1, characterized in that the walls of the contact chamber (8) and / or the protective tube (2) are coated with getter material. Electromagnetic relay according to Claim 1, characterized in that recesses (51) are arranged on the underside of the apolar body (1) around the contact connections (4,4 ') and the azole terminals (5,5'), respectively, and that these recesses are at least part ~ via are filled with casting resin (52). Electromagnetic relay according to Claim 1, characterized in that a sealing cover (EM) consisting of artificial material and adapted to the contour of the flanges (55) of the flushing body is welded to the end side (15) of the flushing body facing away from the contact chamber (8) ( 1). 35. An electromagnetic relay according to claim 1, characterized in that the relay is surrounded by a housing (57) and that the space between the coil body (1) and this housing is filled with casting compound. 36. An electromagnetic relay according to claim 1, characterized in that the contact terminals (LLJV) and the coil connections (5,7) projecting from the relay are mutually arranged in so-called 5 mm grid.