EP0691030A1

EP0691030A1 - Polarized electromagnetic relay

Info

Publication number: EP0691030A1
Application number: EP94910337A
Authority: EP
Inventors: Heinz Stadler; Michael Dittmann; Herbert Mitschik
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1993-03-24
Filing date: 1994-03-16
Publication date: 1996-01-10
Anticipated expiration: 2014-03-16
Also published as: US5617066A; JP3112945B2; CA2158978A1; WO1994022156A1; ATE146302T1; DE59401271D1; EP0691030B1; JPH08508133A; DE4408980A1; CZ246995A3; CZ284682B6; ES2095754T3; DE4408980B4

Abstract

PCT No. PCT/DE94/00288 Sec. 371 Date Sep. 25, 1995 Sec. 102(e) Date Sep. 25, 1995 PCT Filed Mar. 16, 1994 PCT Pub. No. WO94/22156 PCT Pub. Date Sep. 29, 1994The relay has a base (1) with stationary mating contact elements (11, 12, 13, 14), a coil (5), a permanent magnet (4) and also a rocker armature (3) which is arranged between the coil and the base, is connected to movable contact elements (21, 22, 23, 24) and is mounted on the base by means of bearing strips, the bearing strips simultaneously serving as electrical connections for the movable contact elements. The bearing strips (25, 26) are secured to the bearing supports (15, 16), which are designed as connection elements, of the base in planes extending at right angles to the basic plane of the base. As a result, the contact separation can be set with low tolerance even during production, and it is not dependent on tolerances of the individual parts. This structure consequently permits non-problematic, cost-effective production of the individual parts and accurate assembly without the requirement of subsequent adjustment.

Description

Polarized electromagnetic relay

The invention relates to a polarized electromagnetic relay with a base made of insulating material, which defines a base plane with its bottom side and in which at least two fixed mating contact elements and two bearing supports for the armature are fastened, a coil fastened to the base with the base plane parallel axis, a core and two pole pieces connected to the ends of the core, - a permanent magnet arrangement which forms a central pole of a first pole direction in the region of the coil center and which produces pole pieces of an opposite pole direction on the pole pieces, one approximately parallel to the Coil axis arranged, approximately in the middle of a flat ipp armature pivotably mounted about a central axis parallel to the base plane, and a contact arrangement firmly connected to the armature with at least two movable contact elements embedded in an insulating material carrier, each of which optionally with one of the mating contact elements together acting together and two bearing elements embedded in the insulating material carrier, emerging on opposite sides of the armature and connected to the bearing supports.

The invention also relates to a method for producing such a relay.

A relay of the type described above is known for example from EP 0 423 834 A2. With this relay, as well as with other miniature relays with a similar structure, the various modules, i.e. the base with the fixed contact elements, the armature with the movable ones Contact elements and the coil assembly are arranged one above the other in a layered construction, which leads to a summation of the manufacturing tolerances of the individual parts. Thus, in the known relay according to EP 0 423 834 A2, the armature is fastened by means of bearing elements, which are fastened in the form of torsion bars and fastening arms lying parallel to the base plane and resting on support surfaces which are also parallel to the base plane. The distances between the fixed contact elements and the movable contact elements connected to the armature are thus predetermined by the manufacture of the individual parts. This means that, on the one hand, the individual parts have to be manufactured with very little tolerance and thus with great effort, but that the remaining tolerances still add up during assembly. Subsequent adjustment of the contact spacing is therefore unavoidable and is also provided in the known relay by bending the fastening tabs.

The aim of the present invention is to construct a relay of the type mentioned at the outset in such a way and to specify a manufacturing or assembly method for it that the tolerances of the individual parts have no influence on the contact spacings. Regardless of the accuracy of the individual parts, the movable and the fixed contact elements of the relay should be able to be mounted in the correct position relative to one another, so that subsequent adjustment is no longer necessary.

According to the invention, this goal is achieved in a relay of the type mentioned at the outset in that the bearing elements are designed as flat bearing strips which extend at least with one fastening section perpendicular to the base plane and are attached to the bearing supports which are likewise arranged perpendicularly to the round plane .

In the relay construction according to the invention, the previous layer construction is thus abandoned, and the connection between see the moving parts and the fixed base takes place in connection planes which run perpendicular to the base plane and thus in the direction of the switching movement. Thus, when the armature is installed, the contact distance can be set precisely and continuously and fixed by fastening the bearing elements. This not only saves time-consuming, low-tolerance manufacture of the individual parts, but also the subsequent adjustment of the contact spacing.

Preferably, the two bearing strips each extend with an elastic section next to the armature such that the tangential plane at each point of this section lies parallel to the axis of rotation of the armature, so that the elastic section is practically only subjected to bending during the armature movement. In a preferred embodiment, the bearing strips are each embedded in lateral extensions of the insulating support in such a way that they emerge from it in a direction parallel to the longitudinal direction of the armature and are bent in a direction perpendicular to the base plane and are fastened to the parallel fastening tabs of the bearing supports . The two bearing strips preferably extend in a common direction perpendicular to the longitudinal axis of the anchor in such a way that they are subjected to simple bending when the anchor is moved. If the bearing strips also serve as power supply to the movable contact elements, then they are each connected to at least one of these movable contact elements, preferably in one piece, while the bearing supports are in turn connected to connecting elements in the base.

To relieve the fastening points of the bearing strips during the switching process, it is provided in an advantageous embodiment that the end section of the respective bearing strip is clamped between the associated bearing support and an opposing clamping plate, which has an end edge for a clamping point for the bearing strip before it is fastened ¬ gungsstelle defined. The clamping plate can by a End section of the bearing support which is bent over in a U-shape and surrounds the end section of the bearing band at its end edge or else laterally. The bending section between the actual bearing support and the clamping plate can be weakened in cross section, for example by embossing to reduce the thickness and / or lateral incisions to reduce the width. However, it is also possible for the clamping plate to be part of a U-shaped clamp which is placed on the free ends of the bearing support and the bearing band.

With the help of the clamping plate or the U-shaped extension of the respective bearing support, the bearing band attached to it is clamped between the end edge of this clamping plate and the actual bearing support, so that this clamping point also simultaneously the bending point for the respective bearing band at the Anchor movement forms. The actual fastening point, which is preferably designed as a welding point, is thus relieved entirely of the movement forces.

Another possibility for relieving the fastening points, which is usually a welding spot, can be that the bearing band is arranged with the elastic section between the anchor and the bearing support and with an additional one at the end or laterally integrally formed fastening section, the bearing support is fastened around a side of the bearing support facing away from the elastic section. In this case, an edge of the bearing support lies between the welding point and the elastic section, so that the fastening point is again relieved.

The permanent magnet arrangement is preferably formed by a rod-shaped permanent magnet which is arranged parallel to the coil axis below the coil and at the ends each has poles of the same name and a pole of the same name in the middle.

A preferred method for producing a relay according to the invention comprises the following steps: a) the armature connected to the contact arrangement is arranged on the base in such a way that the bearing strips rest against the bearing supports in a vertically displaceable manner; b) a predetermined contact distance is set by shifting the height of the armature; c) the bearing belts are connected to the bearing supports in the set position of the anchor; d) the coil equipped with the core, the pole pieces and the permanent magnet is pushed onto the base from above until predetermined working air gaps of the armature are reached.

In an expedient method for fastening the bearing belts to the bearing supports, the bearing belts are first pre-fixed after the adjustment of the contact distance by a welding spot on the bearing bracket, preferably by a laser welding spot on the end edge of the bearing bracket, and then an end section of the bearing bracket becomes Formation of a clamping plate bent in a U-shape over an end edge of the bearing band, the abutting sections of the bearing support, the bearing band and the clamping plate being welded together thereafter. Expediently, one or more welding spots are generated with a laser welding process or a similar spot welding procedure in the edge region of the bearing strips and the bearing supports or clamping plates. However, it is also possible to fuse together the bonded area of the bearing support, the bearing band and, if appropriate, the clamping plate at its free end using any welding method, preferably a TIG welding method. The invention is explained in more detail using an exemplary embodiment with reference to the drawing. It shows

FIG. 1 shows a relay designed according to the invention in an exploded view,

FIG. 2 shows a fully assembled relay according to FIG. 1, but without a cap, in a perspective view,

3 shows a relay according to FIG. 2 with a cap attached, which is cut off-center in the longitudinal direction,

FIG. 4 shows an enlarged illustration of a base and an armature assembly before assembly,

5 and 6 show a base with an assembled anchor assembly, once in a side view (FIG. 5) and once in a longitudinal section (FIG. 6),

FIG. 7 shows a base and an anchor assembly seen from the front with an assembly device,

FIG. 8 the base with the mounted armature assembly in the case of a relay with a modified armature fastening,

FIGS. 9 and 10 show a side view (in detail) of the arrangement from FIG. 8, specifically in different phases of fastening a bearing band,

FIGS. 11 and 12 show a somewhat modified assembly method for the anchor, namely the state after the anchor has been inserted and before the bearing strips have been fastened, in a perspective view and in section,

FIG. 13 shows a perspective view of a base with a mounted armature assembly, the bearing strips being fastened with an additional clamping plate, 14 to 19 modified embodiments of the bearing area A from FIG. 13 with different possibilities for fastening a bearing strip to a bearing support.

The relay shown in the drawing has a base 1 on which a contact arrangement 2 is movably mounted, which in turn is firmly connected to a rocker armature 3. Above the armature, a flat permanent magnet 4 is arranged approximately parallel to it, which lies with a central pole (N) above the bearing point of the armature and has at its ends two poles (S) of the same name to the central pole. A coil 5 is arranged above the permanent magnet and above the armature, into which a rod-shaped core 6 is inserted axially. A pole piece 7 is connected to the ends of the core 6. Each of the pole shoes 7 is also coupled to one end of the permanent magnet 4 in the region of a coil end and forms a pole surface for the armature 3 at the bottom. With a cap 8 placed on the base 1, a closed housing is finally formed, which in the usual way can also be sealed.

The base 1 consists of a base body 10, which is formed from insulating material and in which fixed counter-contact elements 11, 12, 13 and 14 as well as connection elements 15 and 16 for movable middle contact elements are anchored. All these contact elements are expediently cut free from a common circuit board and embedded in the base body with a fastening section parallel to the base surface of the base. From these embedded sections, connection pins, for example 11a, 12a and 15a, are bent perpendicular to the underside of the base. The counter-contact elements 11, 12, 13 and 14 themselves are exposed on the top of the floor in the trough-shaped base body 10 and are provided with welding profiles 11b, 12b, 13b and 14b. The connecting elements 15 and 16, however, are bent upwards on opposite sides of the base, where they can be Correct bends and offsets form two bearing supports 15b and 16b for the movable contact arrangement or for the anchor. A rib 17 is formed in each case between the fixed counter-contact elements 11 and 13 or 12 and 14 lying next to one another in order to enlarge the insulating distances. In addition, the base body has a cutout 18 at the corners for plugging the coil 5. In the region of these recesses, vertical ribs 19 are formed on the vertical wall of the base body 10, the function of which will be described later.

The movable contact arrangement 2 has a contact carrier 20 made of insulating material, in which contact springs 21, 22, 23 and 24 are embedded. These contact springs optionally work together with the fixed mating contact elements 11, 12, 13 and 14 below them. To form two changeover contacts, the contact springs 21 and 22 are connected in one piece in the present example, so that they form a central contact element which is mechanically and electrically connected to the connecting element 15 in the base via a bearing strip 25. Correspondingly, the contact springs 23 and 24 are integrally connected to a bearing band 26 and coupled to the connecting element 16. The contact arrangement 2 is firmly connected to the armature 3 via two fastening pins 27.

The armature 3 consists of a flat iron strip 30, the central region of which is bent upwards to form a transverse bearing web 31. In this way, the armature can roll on the permanent magnet 4 lying above it and can optionally rest with one of its pole faces 32 or 33 on one of the pole shoes 7. The bores 34 serve to receive the fastening pins 27 of the contact arrangement, which can be fixed in these bores by hot deformation.

The coil 5 has a coil body 50 formed of insulating material, which carries a winding 57 between two flanges 51 and 52 and the rod-shaped core 6 in the coil body tube records. At the four corners of the system, the coil flanges 51 and 52 each have lugs 53 which extend downward and which overlap the base 1 in a box shape and come to rest in the recesses 18 thereof. On the inner sides of the extensions 53 there are formed in each case transverse ribs 54, which each lie in a cross shape with the longitudinal ribs 19 of the base and thus ensure a tight fit in any position. Vertical grooves 55 are provided in the coil flanges 51 and 52 and in the extensions 53, into which coil connection elements 56 are inserted. In another embodiment, however, they could also be embedded in the material of the coil former.

When assembling the coil assembly, the pole shoes 7 are inserted from below into corresponding channels of the coil body flanges 51 and 52, their fork-shaped ends 71 each encompassing the core 6 located in the coil body tube. However, it would also be conceivable to provide the pole shoes 7 with an opening which is closed at the top, in which case the pole shoes would then have to be plugged onto the core in the axial direction.

When installing the relay, the movable contact arrangement 2 is first combined with the armature 3 to form an armature-contact assembly, the fastening pins 27 being anchored in the bores 34 by hot deformation in the manner described above. Then this armature-contact assembly is connected to the base 1, the contact distances being set in a defined manner. This will now be explained in more detail with reference to FIGS. 4 to 7.

The bearing strips 25 and 26, which simultaneously serve as electrical connection tabs for the center contact elements 21/22 and 23/24 and are cut integrally therewith from a circuit board, each emerge essentially horizontally from the insulating material carrier 20 of the contact arrangement. For this purpose, this carrier 20 has side lugs 28, from which The two bearing strips exit in the longitudinal direction of the armature, from where they are then bent vertically upwards with a relatively small radius. These upwardly bent sections of the bearing strips thus lie in a common plane perpendicular to the base plane, which on the other hand also extends approximately through the bearing axis of the armature. In the assembled relay, the bearing strips 25 and 26 are therefore not subjected to torsion, but only to a simple bend. The ribs 17, against which the attachment 28 strikes in the event of impacts, serve as shock protection against the arm being deflected too far in its longitudinal direction.

After inserting the armature-contact assembly into the base 1 according to FIGS. 5 and 6, the contact spacings 29 (for the central position of the armature) are set to predetermined, identical values. This is preferably done with a device according to FIG. 7 or with a comparable device. After the bearing strips 25 and 26 have been aligned with the bearing supports 15b and 16b of the base body, the armature contact assembly with the contact springs 21, 22, 23 and 24 rests on the associated mating contact elements 11, 12, 13 and 14. The bearing strips or connecting tabs 25 and 26 rest with their vertical contact surfaces on the bearing supports 15b and 16b of the connecting elements 15 and 16. The assembly device 9 shown in FIG. 7 contains a schematically shown measuring device 90, which is brought with two electrically conductive legs 91 and 92 to a coupling point on the top 35 of the armature (double arrow 95) until there is an electrical passage from the leg 91 takes place via the armature to the leg 92 and is determined in the measuring device mentioned. If the armature is crooked due to a deformed contact spring, a certain pressure force is required in order to establish the electrical passage through the armature. The size of the deformation can be derived from the size of this necessary pressing force; if a maximum permissible predetermined force is exceeded, the anchor system is eliminated as faulty. However, if the armature-contact assembly has been determined to be sufficiently flat by the first measuring step described above, the measuring device travels down a predetermined path, ie in the direction of the base 1. In this state, between the four contact springs 21 , 22, 23 and 24 on the one hand and the associated mating contact elements 11, 12, 13 and 14 in the base an electrical connection is established. This is determined by measurement on the connection pins 11a, 12a, 13a and 14a. This test procedure ensures that at least one contact arm of the contact springs 21, 22, 23 and 24, each divided into two arms, ensures a sufficient overstroke. The construction according to the invention thus enables a functional test to be carried out before the anchor assembly is attached; faulty assemblies can be eliminated early.

After this overstroke test, a slide 96, which is located in the measuring device 90, is lowered (double arrow direction 97). The armature 3 is held by a permanent magnet 98 which is fastened on the slide 96. The measuring device is now moved with the armature assembly upwards (double arrow 95) corresponding to the desired contact distance 29 (FIG. 6) - taking into account the overstroke. The bearing strips 25 and 26 of the anchor contact assembly are now at the desired height with respect to the bearing supports 15b and 16b of the base assembly. In this position, the bearing strips 25 and 26 are welded to the adjacent bearing supports 15b and 16b, respectively. The welding can be carried out, for example, as resistance welding or laser welding.

Then the magnet system, the coil 5 with the core 6, the pole pieces 7 and the permanent magnet 4, is pushed onto the base assembly until the desired armature stroke is reached. The bobbin 50 clamps on the base body 10, the horizontal ribs 54 of the bobbin on the vertical Ribs 19 of the base - if necessary together with other, not shown ribs on both parts - ensure the tight fit in any desired position. By adjusting the permanent magnet 4, both monostable and bistable switching properties of the relay can be achieved. A monostable switching property can also be achieved by an additional separating plate, not shown, which is placed between one of the pole shoes 7 and the associated pole face 32 or 33 of the armature. After putting on the cap 8, the relay is sealed with casting resin in the base area.

FIGS. 8 to 10 show the base area of the relay with the armature and a modified bearing attachment. The relay according to FIG. 8 has a base 1 on which a contact arrangement 2 is movably mounted, which in turn is firmly connected to a rocker armature 3. In the base there are anchored fixed mating contact elements, of which only the connection elements 11a and 12a are visible, and also connection elements 15 and 16 for movable middle contact elements, e.g. B. 21 and 22, which are embedded in an insulating material carrier 20 of the contact arrangement 2 and connected to the armature 3 via the latter.

The center contact elements form two bearing bands 25 and 26 which are bent approximately vertically upward and which serve as an electrical and mechanical connection to the base and cause the armature 3 to be pivoted. For this purpose, the connection elements 15 and 16 each have bearing supports 151 and 161 formed vertically upwards, which are furthermore each provided with a U-shaped extension 152 and 162. The bearing strips 25 and 26 are each connected to the bearing supports 151 and 161 via a welding point 153 (FIG. 10), with the U-shaped extension 152 and 162 relieving the pressure on the welding point.

According to a first variant, the anchor can be installed in such a way that the extension 152 (or 162) is next only bent by approximately 90 ° relative to the associated bearing support 151 (or 161) when the armature 3 with its bearing bands 25 or 26 is used. The bearing strips 25 and 26 are initially only fixed or attached to the associated bearing support 151 or 161; this is done by means of a resistance welding, indicated by the welding point 154 in FIG. 9, or by a notch. However, laser welding at the end edge of the bearing band 25 or 26 is also expedient. The extension 152 or 162 is then bent down until the end edge 155 or 165 abuts the bearing band 25 or 26 (see FIG. 10). The final fastening of the bearing strips 25 and 26 to the associated bearing support 151 or 161 is then carried out using a laser weld; this weld spot is designated 153.

In a further variant, as shown in FIGS. 11 and 12, the extension 152 or 162 of the bearing support 151 or 161 is first bent in a V-shape and closed in the process to approximately 20 °. In addition, the two bearing supports 151 and 161 are bent obliquely outwards so that they form an angle of approximately 80 ° to the plane of the floor or to the plane of the board 100 which is still partially connected to the base. This makes it possible to insert the anchor with the contact arrangement and with the bearing strips 25 and 26 from above between the bearing supports, as can be clearly seen in FIG. After the anchor assembly has been inserted, the bearing supports 151 and 161 are bent inwards until they are perpendicular to the base plane and, with their V-shaped extensions 152 and 162, embrace the ends of the bearing bands 25 and 26, respectively. When the armature assembly is set to the correct contact distance, the extensions 152 and 162 of the bearing supports are pressed into their final U-shape so that they encompass the ends of the bearing bands 25 and 26. These bearing strips 25 and 26 each have wart-shaped embossments 156 and 166 or bends which, when the extensions 152 and 162 are deformed, form a firm connection with the Bearing supports 151 and 161 are cold-welded. As a result, the extensions 152 and 162 are pre-fixed with the bearing strips 25 and 26, respectively. As in the previous case, the final fixation is then carried out, preferably by laser welding.

In both of the latter variants, the bent extension 152 or 162 is slightly convex, as can be seen most clearly in FIG. 10. In this way, only the lower edge 155 or 165 of the extension rests with pressure on the bearing band 25 or 26; this is clamped on both sides in the area of this end edge 155 or 166, whereby the actual welding point 153 is relieved when the rocker armature moves.

A further expedient modification of the bearing attachment of the armature is shown in FIG. 13, the same view as that in FIG. 8 being shown in principle. An armature 3 with a contact arrangement 2 is thus arranged on a base 1. The anchor has laterally emerging from the contact carrier 20 bearing strips 25 and 26, the elastic section of which merges into an end section 25a or 26a, at least the latter being perpendicular to the base plane and at an end section 175a or 176a of a bearing support 175 or 176 abuts. Arranged opposite the end sections 175a and 176a of the bearing supports is an additional clamping plate 177 or 178, which clamps the end section 25a or 26a of the respective bearing belt and forms a clamping point with its lower edge 177a or 178a to relieve the welding point 179. This welding point 179 is located as a laser welding point in the region of the side edges of the end sections 175a of the bearing support, 25a of the bearing band and the clamping plate 177 which are stacked one on top of the other, at a certain distance from the lower edge 177a. Another welding spot 180 can also be provided on the top. In the same way, the bearing band 26 is attached to the opposite side of the anchor. FIG. 14 shows a modification of the bearing area A, a bearing plate 187 being produced by a U-shaped bend in the end section of the bearing support 175. Otherwise, the function and the fastening of the clamping plate 187 is the same as for the clamping plate 177.

The arrangement of FIG. 14 with the U-shaped end of the bearing support corresponds approximately to the illustration in FIGS. 8 to 10. However, in the embodiment according to FIG. 14, the bending area between the bearing support 175a and the clamping plate 187 is in cross section reduced. For this purpose, the bearing support is provided with an embossing 181 from outside before bending. In addition, the width of the bearing support can also be reduced by means of incisions 182 (shown in broken lines). In this way, the bearing support 175 or the clamping plate 187 can be bent with low forces during assembly without the dimensionally accurate anchoring in the base body being impaired. It is also no longer necessary to first carry out a partial bending according to FIG. During assembly, the end edge of the bearing band 25 or 25a is only adhered to the section 175a of the bearing support by a laser welding spot after the adjustment of the armature and the bearing bands 25 and 26, and then the pre-embossed clamping plate is fastened over it End of the bearing band bent. The welding point 179 is generated as previously described.

Another possible embodiment of the storage area is shown in FIG. 15. Here, too, a U-shaped bend has been provided to produce a clamping plate 188, but this is not now bent over the end edge of the bearing support 175, but rather over the side edge thereof. In this case too, the welding point 180, which is now at the top, is relieved. As shown in FIG. 16, an additional, U-shaped clamping element 189 could also be used to relieve the welding point 179, which in this way forms a clamping plate 190. The welding point 179 is located at the same point as in FIG. 14.

A further possibility is shown in FIG. 17 in order to relieve the welding point without an additional clamping plate. In this case, as before, a flexible section 25d of the bearing band 25 is arranged between the contact carrier 20 and the bearing support 175; this is also such that a tangential plane is parallel to the pivot axis of the armature at each point of the bearing band. However, an end section 25b is now bent over an end edge 175b of the bearing support 175 into the vertical and fastened with a weld spot 191 on the side of the bearing support opposite the flexible region. Since the bearing band rests on the edge 175b, the welding point 191 is relieved when the armature moves in this case too.

In a modification of the embodiment in FIG. 17, a flap 25c on the side is bent at the end of the bearing band 25 and welded to the outside of the bearing support 175 (welding point 192). In this case too, the end section 25a is just like the bent tab 25c perpendicular to the base plane, thus allowing adjustment before fastening. Nevertheless, in this case too, the welding point 192 is decoupled from the flexible section 25d of the bearing band 25.

FIG. 19 shows a further possibility of fastening the bearing belt 25 to the bearing support 175. The embodiment shown in FIG. 8 or FIG. 14 is shown, the bearing bracket 175 being bent at its end in a U-shape over the end of the bearing belt 25 in order to keep them tight. Instead of the laser welding point shown above, the curved end of the bearing support 175 or the bearing plate 187 is now included. lent the end edge of the bearing band 25 clamped between the two fused into a welding head 193. This can preferably be done by TIG welding (resistance inert gas welding) or with another welding process.

In general, it should also be pointed out that in addition to the welding method described, other fastening options for the bearing strips are also possible, for example soldering methods, possibly also adhesive methods if the bearing bands do not serve as a power supply, but also mechanical joining methods with rivet-like deformation of the parts to be connected.

Claims

1. Polarized electromagnetic relay with a base (1) made of insulating material, which defines a base plane with its bottom side and in which there are at least two fixed mating contact elements (11, 12, 13, 14) and two bearing supports (15b, 16b) for an armature are attached, a on the base (1) attached coil (5) with an axis parallel to the base plane, a core (6) and two pole pieces connected to the ends of the core (7), a permanent magnet arrangement (4) which in the area of The middle of the coil forms a central pole of a first pole direction (N) and generates on the pole shoes in each case poles of an opposite pole direction (S), which is arranged approximately parallel to the coil axis and is pivotally mounted about its center about a central axis parallel to the base plane , flat rocker armature (3) and - a contact arrangement (2) connected to the armature with at least two movable contact elements embedded in an insulating material carrier (20) (21, 22, 23, 24), which optionally cooperate with one of the mating contact elements (11, 12, 13, 14), as well as with two embedded in the insulating material carrier (20) and emerging on opposite sides of the armature (3) and bearing elements (25, 26) connected to the bearing supports (15b, 16b), characterized in that the bearing elements are designed as flat bearing strips (25, 26) which extend at least with a fastening section perpendicular to the base plane and are attached to the bearing supports (15b, 16b) which are also arranged perpendicular to the base plane and lie flat.

2. Relay according to claim 1, characterized that the bearing strips (25, 26) in each case in lateral extensions (28) of the insulating material carrier. (20) are embedded, emerge from the armature in a direction parallel to the longitudinal direction of the armature and are bent in a direction perpendicular to the base plane, and are fastened to the bearing supports (15b, 16b) running parallel thereto.

3. Relay according to claim 1 or 2, characterized in that εich the two bearing strips (25, 26) each with an elastic section next to the armature (3) extend such that the tangential plane at each point of this section is parallel to the axis of rotation of the armature, so the elastic section is subjected to bending during the armature movement.

4. Relay according to one of claims 1 biε 3, characterized in that the bearing strips (25, 26) each with at least one of the movable contact elements (21, 22, 23, 24) and the bearing supports (15b, 16b) with connecting elements ( 15, 16) for the movable contact elements (21, 22, 23, 24) are connected.

5. Relay according to one of claims 1 to 4, characterized in that the insulating material carrier (20) with the movable Kontakt¬ elements (21, 22, 23, 24) arranged in parallel below de Ankerε (3) and Mittelε deformed pin (27) in Recesses (34) of the anchor are attached.

6. Relay according to one of claims 1 to 5, characterized in that the fixed counter-contact elements (11, 12, 13, 14) and optionally the connection elements (15, 16) for the movable contact elements (21, 22, 23, 24) are embedded together in a base plane in the base (1) and that each connection pins (11a, 12a, 13a, 14a, 15a, 16a) from Base downwards and the bearing supports (15b, 16b) bent upwards.

7. Relaiε according to one of claims 1 to 6, characterized in that a coil winding (57) carrying coil body (50) at both ends flanges (51, 52) has, which with downward projections (53) with corresponding walls of the base (1) are interlocking in a box-like manner with a press fit.

8. Relay according to one of claims 1 to 7, characterized in that the end section (25a, 26a) of the respective bearing band (25, 26) between the associated bearing support (151, 161; 175, 176) and an opposite clamping plate (152, 162 ; 177; 178; 187; 188; 190) is clamped, which defines with an end edge (155, 165; 177a, 178a) a clamping point for the bearing belt in front of its fastening point.

9. Relaiε according Anεpruch 8, characterized in that the clamping plate (152, 162; 187; 188) by a U-shaped ^• the bent end portion of the bearing support (151, 161; 175) overall forms iεt which the Endabεchnitt deε Lagerbandeε to εei - encloses a trailing edge or on the side.

10. Relayε according to claim 9, so that the bending section (181) between the actual bearing support (175) and the clamping plate (187) is weakened in cross-section.

11. Relay according to claim 8, characterized in that the clamping plate (190) is part of a U-shaped, on the free ends of the bearing support (175) and the bearing band (25) inserted bracket (189).

12. Relay according to one of claims 8 to 11, characterized in that the fastening of the bearing band (25) by one of the adjacent side edges of the bearing support (175), bearing band (25) and the clamping plate (177; 187; 188) ver - Melting welding point (179; 180) is made.

13. Relay according to one of claims 3 to 8, characterized in that the bearing band (25) with the elastic section (25d) is arranged between the armature and the bearing support (175) and with an end section (25b; 25c) the bearing support (175 ) is fastened in an encompassing manner on a side of the bearing support facing away from the elastic section (25d).

14. A method for producing a relay according to one of claims 1 to 13, characterized by the following steps: a) the armature (3) connected to the contact arrangement (2) is arranged on the base (1) in such a way that the bearing bands (25, 26) bear against the bearing supports (15b, 16b) so as to be vertically displaceable; b) a predetermined contact distance (29) is set by shifting the height of the armature (3); c) the bearing bands (25, 26) are connected to the bearing supports (15b, 16b) in the set position of the anchor; d) the coil (5) equipped with the core (6), the pole shoes (7) and the permanent magnet (4) is pushed onto the base (1) from above until the working air gap of the armature (3 ) have been reached.

15. The method according to claim 14, characterized in that first the armature (3) with the contact arrangement (2) der¬ art is placed on the base (1) that all contacts (11, 21; 12, 22; 13, 23; 14, 24) are closed with overtravel, that the armature (3) is then raised by a predetermined amount (29) and that finally the bearing strips (25, 26) are welded to the bearing supports (15b, 16b).

16. The method according to Anεpruch 14 or 15, characterized in that the bearing strips (25, 26) after the setting of the Kontaktabεtandeε are first pre-fixed by a welding point on the bearing support, that then an end portion of the bearing support to form a clamping plate Is bent in a U-shape over an end edge of the bearing band and that finally the sections of the bearing support, the bearing band and the clamping plate which lie against one another are welded together.

17. The method according to claim 14 or 15, characterized in that after setting the Kontaktabstandeε the free end portions of the bearing supports are bent to form a clamping plate U-shaped over the end portion of the bearing support, with embossed or curved projections (156, 166) of the Bearing bands (25, 26) make a firm connection for pre-fixing with the bearing supports (151, 161), and that the bearing bands (25, 26) are then welded to the bearing supports (151, 161).

18. The method according to any one of claims 14 to 17, characterized in that the bearing supports (151, 161) with V-shaped bent extensions (152, 162) are first bent outward at an acute angle so far that the armature (3) with the bearing bands (25, 26) in between, and that the bearing supports (151, 161) are then perpendicular to the Be ground level bent such that the extensions include the bearing tapes (25, 26).

19. The method according to any one of claims 14 to 18, so that one or more welding spots (179, 180), in particular laser welding spots, are generated in the edge area of the bearing tapes and the bearing supports for fastening the bearing tapes (25, 26).

20. The method according to any one of claims 14 to 18, so that the end sections are connected to the associated bearing support and, if appropriate, the clamping plate with TIG welding for fastening the bearing bands.