DE1988286U - ELECTROMAGNETIC RELAY. - Google Patents

Description

ERNI &. CO., Stationsstrasse 474, 8306 Brüttisellen (Switzerland)

Electromagnetic relay

The present innovation relates to an electromagnetic relay with a fixed, a wound coil * body-bearing iron core and one on one with the Iron core connected yoke movably mounted, at least one contact member actuating hinged armature. -

The known clapper armature relays usually have an iron core with a circular cross-section. One end of the iron core is on a band-shaped,. angled yoke attached, for example by riveting, caulking, etc. A wound, flanged coil- body upset. The anchor, which as .approximately right-. angled elbow or can be designed as a plate, is usually at one about the same Height as the free "end of the iron core located yoke

- 1 -

attached to the end, either by means of one at the end of the yoke provided cutting edge on which the inner edge of the angled anchor is mounted, or by means of a '' ferromagnetic, thin and resilient sheet metal strips, which is loaded both at the yoke end and at the anchor plate

is consolidated.

These known designs of the magnetic circuit of electromagnetic relays have various disadvantages. The main disadvantage is that the course of the magnetic flux at the transition point from the cylindrical core to the band-shaped yoke and also to the band or plate-shaped armature is unfavorable and causes a considerable leakage flux that cannot be used to operate the relay. In addition, an effective, corrosion-preventing surface treatment of the iron parts at the attachment point of the core to the yoke is more difficult and cannot be achieved with certainty. '_;

The purpose of the present innovation is to avoid the disadvantages mentioned. . s

According to the innovation, the electromagnetic relay is - thereby characterized in that the core and the yoke are made in one piece

are designed as at least twice angled body and that the core and yoke are at least approximately rectangular Have cross-section. ·

The free end of the yoke can have a cutting edge for mounting an angled armature, the inside of which is in a distance from the angle inner edge with one of the. 'Cutting edge is provided with the corresponding groove.

'The anchor can put pressure on him on the cutting edge be exposed to compressive tension springs, preferably: as elongated and curved. Wire spring from- '· ■' is formed, which in one on the outside of the / Anchor of the groove opposite arranged groove attacks. ... ■ '.. ■; ;. _ '· -. "...,

The length of the cutting edge and the width of the anchor the place of the intended for receiving the cutting edge Grooves can advantageously be larger than the width of the · '■' Core to avoid a cross-section reduction for the magnetic flux at this point. It can also do that yoke part provided with the cutting edge has a stop latch

for the armature to have an air gap between the To effect yoke part and the anchor. - ·.

■■ .. "■ '■. ■. ·. ■■' - - 3 - ■ - ■ - ^:. ■ · ■ '■ ■■■■ ■' ■■. ■" ■ ..;. ■■■ .

Arn yoke can be actuated by the armature at least one
Contact member attached to which the groove
having angled anchor part with its outer surface lying on one and / or the other side of the groove acts through pressure and / or tension.

To attach the relay and / or the contact members, the yoke can be provided with tabs. For this purpose, the yoke part having the cutting edge can be provided with two tabs arranged at right angles to the yoke part, for example bent over, each with a hole for the
Inserting and holding the wire spring are provided. ;

The innovation is illustrated below with the aid of the drawing, for example explained. It show: j

Fig. 1 shows a relay according to the innovation without a coil and without Contact elements, in isometric partial assembly representation, ; :

Fig. 2 the assembled relay of F, ig. 1, in one vertical section, j:

Fig. 3 shows a wound bobbin for the relay of Fig. 1, in isometric view, \

Fig. 4 shows a switch package for the relay of Fig. 1, in isometric illustration,

Fig. 5 -.7 further embodiments of the relay of Fig.I ^- divided with a wound bobbin and with '.Kontakt- ■' ·, halbschemat is cn 'in a vertical section' and fragmentary part ,. -. . "'■.

Pig * .8 and -9 details of the connections of the wrapped Coil former of Figure 3, in an isometric view.

According to Fig.l and 2, the magnet system 'has an electromagnetic Relays a core 1, a first yoke part 2 arranged at right angles to the core 1, and a second, at right angles to the first yoke part 2 · and accordingly arranged parallel to the core 1, the second yoke part 3. · The core. 1 and the yoke parts 2 and 3 are, by angling a punched out Eisenblechstreifehs formed in one piece and therefore all show approximately the same ^ rectangular. Cross section on, ''. ', ■ ;. . ■ ':

.ο. "■

The end of the yoke part 3, which is shorter than the core 1, has an outwardly directed cutting edge 4: which is produced, for example, by pressing the sheet metal strip in a corresponding pressing tool _o Fearner is that Yoke part 3 is provided on its outside with, for example, a cylindrical cam 5 (FIG. 2), which is advantageously also pressed out of the sheet metal strip. '.

-5-

The cutting edge 4 is provided for the storage of a hinged armature 6, " which has the shape of an angle piece bent from a sheet-iron strip, one of which is anchoring part

7 is arranged perpendicular to the core 1 and in FIG . The illustrated unexcited state of the relay with the end face of the 'core 1. forms an air gap 8. The other. ■ · ". ■■ angled anchor part'9 1st with a triangular en .. '■' Transverse groove 10 is provided, which serves to accommodate the cutting edge 4 and, together with this, the bearing for the folding · • anchor 6 forms. The groove 10 is here arranged at a distance from the "inner edge 11 of the armature 6", for example approximately in the middle in the longitudinal direction of the anchor part The anchor part 9 is here 'on the one hand by the protruding.' de cutting edge 4 and on the other hand by the cam -5, against which the anchor part 9 strikes at its end, in an air gap 12 between the inner surface of the anchor part 9 and the outer surface of the yoke part. 3 forming distance ' held. . · .: '' "'". . '' ■ _ ■■■. "■

To hold the armature 6 on the yoke part 3, and the armature part To press 9 against the cutting edge 4 is one. Tension -; - spring 13 - provided as an elongated ", curved wire spring is trained. For anchoring the tension spring 13 the yoke part 3 has two lobes bent at right angles

-6-

. . 14, in each of which a small hole 15 for insertion . and holding the tension spring 13 is provided. So that the tension spring 13 cannot move in the holes 15,

•. Each hole 15 has a pointed shape, the -

• The tension spring comes to rest in this tip. To fix the position of the tension spring 13 on the armature part 9, it is provided with a groove 16, the course of which can be adapted to the curved shape of the tension spring. The groove 16 can be arranged exactly opposite the groove 10, so that the tension spring 13 only exerts a force which presses the armature part 9 onto the cutting edge 4. Groove can ' ^: but also slightly below the groove 10. are brought, so that an “additional” torque is then exerted on the armature part 9 by the tension spring 13, which presses the armature part against the cam 5.

MJm to prevent the armature 6 from being shaken pushed away from the 'cutting edge 4 against the tension spring .13 will be used as mechanical anchor restraint; the interior side of the flap 14 two cams 17 attached, which with Advantage from the material of the flaps are pressed and limit anchor movement »'. j ■

The tabs 14 preferably form part of the sheet metal strip from which the core 1 and the yoke parts 2. ■ and 3 are turned. This can be done by punching out

"7-

. i

- A corresponding sheet metal shape and "subsequent bending" of the tabs can be achieved in a simple manner. The tabs 14 simultaneously serve as ΐ-carriers for one or more contact members that are mechanically operated by the armature 6 ', and are for this purpose with various openings, for example a slot IS open on the edge of the tab 14, a further angled slot 19, also open on the edge of the tab 14, and a round hole 20.

Fastened as an embodiment between the tabs 14. . ·. Barer Kontätglieder is -in Fig. 4 an encapsulated; Switching element 21 shown and indicated in FIG. _ ■;

The switching element 21 has two outer surfaces each. Cam 22 and two pressure pins on one of its narrow sides. 23, the pressure pins 23 in a known manner for.,.

Actuation of each of the snap switches are provided.

The pressure pins 23 are arranged in thickenings 24, '' ':'.

which a larger guide length for the pressure pins _{: _.-:}

cause. On the lower narrow side of the switching element 21 several connection elements 25 are arranged, vdie with

• Corresponding contact pieces of the switching element 21 are connected. The connection elements 25 can, for example, be used as flat contacts for plugging into individual flat plug elements or in a corresponding, separate plug part, or as solder lugs for soldering connection wires η. "Have obligations for insertion and soldering into printed scarf or suitable switching wire for winding a form '' ■. '■': ■■... -" The connection elements 25.können ■ ^a:

To attach the switching element 21 this is; between ■ ' the tabs 14 brought with: the cams 22 in the slots 18 and 19 are introduced. Da'der. Slot 19 angled ■ is, the cams 22 can be brought into the end position shown in Fig -.- 2 without a previous bending

* *. - ■■■■■

'the flap 14 would be necessary. For fixing the switching element 21 between the flaps 14 is the inner part of the Slit 19 delimiting part of the tab 14 around the cam. '22 bent inwards, including a pair of pliers or dergi; in the hole .24 and on the edge of the flap. As shown in Fig. 2 it can be seen that the end of the anchor part 9 lies with;: his Outer surface on the pressure pin 23 of the switching element 21 to .. The provided in each tab 14 hole 20 can, except for Assembly of the switching element 21 'can also be used for the subsequent attachment of a protective cover for the relay,

-9-

ί ■■

; ■ ", with the protective cover on its inside with the _ Holes 20 snap-in cams are provided.

• A 'surrounding the core 1 is used to excite the relay. ■ "· ':'. wound bobbin provided, which is shown for example in Figure 3. The bobbin has a

• upper and lower flange 26 and 27 respectively provided with a winding 28. The bobbin is provided with an opening for the core 1, the cross section of which corresponds to the cross section of the core 1. The ends of the

• Windings 28 are led to several connection elements 29, _. . and connected to them. The connection

elements 29 formed in the same way as the connection ■ . elements 25. of the switching element 21 and also have the same ; Length on. '■ · ■',.

-. ■ '"To fix the wound bobbin on the core ·" 1 (Fig.l) is each of the two narrow sides of the core with a notch 30. The opening of the bobbin ■■ ■. for the core 1 there are two corresponding cams (, not, dar-, set), 'so that they can be opened when the' bobbin-. body to the core. 1 snap into the notches 30 and

'■ thereby hold the' bobbin 'tightly. "; ■

■ -1Ö-

To achieve that the yoke and the bobbin 'mechanically firmly interlock, in addition, when the relay is assembled, the yoke and bobbin are with one another crossed. The top flange 26 of the spool is according to Fig. 3 provided with two arm-like extensions, a recess 38 is provided near the free end thereof. The tops of the tabs 14 of the yoke part 3 (Fig..l) consecrates two corresponding, swallowtail-like cams 39 on. Get onto core 1 when pushing the bobbin the recesses 38 and the cams 39 are in mutual engagement so that the yoke and the spool come together form a rigid frame which is able to withstand the forces that occur when the relay is operated without Absorb deformation. This has the advantage that an adjustment of the switching element 21 (Fig. 2) is possible. in terms of of the armature 6 'cannot change during operation. ·

The lower flange 27 is on its outside tniti a · Provided recess 31, which is provided for receiving the yoke part 2 (Fig. 1). This achieves that this is the Underside of the relay, so its yoke part 2 and the SpulenV flange 27, an approximately flat surface: also the upper flange 26 is on its outside with an opening

11 -

■ recess 32, in which when installed the The end of the core 1 (Fig. 1) protrudes. This recess 32 allows a separately shown short-circuit ring 33 to be inserted, which is then on the one hand in the hidden part of the recess 32 and on the other hand from the core 1, which is the short-circuit ring 33 partially or completely 'encloses, held, is.

When the relay is used as an AC relay, it is expedient to design the short-circuit ring 33 in such a way that it encloses approximately 2/3 of the cross section of the core 1. The length of the slot arranged in the short-circuit ring .33 is in this case about 2/3 the width of the core In order to be able to guide one side of the short-circuit ring 33 through the core 1 /, this is shown with a dashed line provided section 34 shown. '■'

i ■ · -

A relay energized with direct current can also be provided with the short-circuit ring 33 if it is desired to achieve a delay. In this case, the short-circuit ring 33 surrounds the entire cross section of the core 1 and-has a width of ¹ "corresponding core. Slot length.. '''\

The core 1 facing side of the anchor portion 7 wi _(RD in a known manner with a in Fig. 1 'separately ones shown,' ■. ·. Klebblech set 35 or the like. ,, provided the beijSpiel.s-

'■■■' ■■. ■. - '' ■ '. - lla '. - '. "■■ '. ■■■■'

can be designed as a self-adhesive film.

It is also possible to pull a paramagnetic film, e.g. a plastic film, over the core 1, with the bobbins attached to the core, along with an adhesive, holds them in place. Furthermore it is possible that the core is provided with a firmly adhering plastic coating. '. ·

In order to be able to fasten the relay, its yoke part is 2 according to FIG. 1 provided on both sides with a tab 36,: which has a threaded hole 37, for example. The tabs 36 are preferably connected to the yoke part 2 and are simultaneously with the core 1, the yoke parts 2 and 3 and the tab 14 punched out of a sheet metal strip. ■ ',:

As can be seen from FIGS. 1 and 2, the magnetic flux can pass unhindered from the core 1 into the yoke part 2, since there are no cross-sectional disruptions at the transition point or changes are available. From yoke part 2 runs the magnetic flux is also unhindered up to the cutting edge 4 of the hole part 3 and at this point it enters the armature

■ i '■ · part 9 about. A parallel path from the yoke part 3 to the lower. half of the groove 4 lying. Armature part 9 is only used to a very small extent with the magnetic flux, since the '

. · ·· - ■. ■ "■■. '' - / 12 '-. ■■■ ·'. ■; .- ■■

• Air gap * 12 represents a high resistance. One on the transition point from the yoke to the anchor, i.e. at the Bearing point of the armature, compared to known relays cheaper - "- .. lower magnetic flux, is in the relay described by,. · Achieved that this transition point on a flat part 'and not in the angled inner edge 11' of the armature, provided ■. is, whereby the cutting edge 4 and the groove 10 are more precisely

- let them form. One through the cutting edge 4 of the yoke part 3 ■ "■ -." -. and the groove 10 of the anchor part 9 at the transition point ,. Still effected cross-section reduction for the magnetic flux is when shown. Relay at least approximated .by compensating for the length of the cutting edge, 4 and the. ' . ' Width of the anchor part 9 at the point of the groove 10 larger λ- are as the width of the 'core 1. The same advantage is . · 'V- also for the transition of the magnetic flux from the armature part 7' '_. present on the core 1 by also ironing at this point. ■ "'." ; share at least approximately the same cross-sectional area. V. and shape. . ■

■ In addition to the aforementioned, the course of the magnetic flux-related -fenden advantages, the relay described has the advantage

■ ensure that the entire magnet system including .the ■

- ■■ Fastening elements for the contact elements and the relay can be punched and bent from a single piece of sheet metal, so that further work steps for mounting the. '_

Magnet syst; ems and attaching fastening elements. This therefore makes it possible to arrange the 'fastening valves' for the relay, namely the tabs 30 with the threaded holes 37 'without additional effort, so that the'; • threaded hole outside of the flange of the bobbin \ is .. This eliminates mehr'möglich, long with too; Press mounting screws on the bobbin or · winding and damaging them ^·. - ·

The relay described also provides the advantageous ■ possibility of armature parts on both sides of the bearing point to use the armature to actuate contact members and thereby by means of a compressive and / or tensile force 'To act on the contact members, or an advantageous Arrangement of the contact elements and the actuating element " for the contact members with respect to the armature. '■'. . In FIGS. 5 to 7, three exemplary embodiments are shown. - .. divider-like contact members semi-schematically in section . shown, with matching parts already described above being identified in the same way ». ■ -, '; "■■■

According to FIG. 5, a relay in turn has the. Core 1, the ■ first angled yoke part 2 and the second angled yoke part 3, all of which are made from one piece »

• On the cutting of the yoke part 3, the armature 6 is with the angled anchor parts 7 and 9 mounted. A bobbin with flanges 26 and 27- is attached to the core 1, • who carries the winding 28, which with the connection elements 29 is connected. A first, isolated, or, from 'one Insulating material existing carrier 41 is attached to the yoke part 3, preferably to the one not shown in FIG Tab 14 of Fig.l and, for example, with cams or fastening screws. In the carrier 41 are at their connection ' lateral ends three contact springs 42 and 43 of a changeover • contact attached in an isolated manner, via a further 'carrier' element 44 is a support plate 45 for the contact-side ends of the b, two outer contact springs 42 with slots 'attached to the carrier-41 for a contact lag. At a above the bearing point formed by the cutting edge 4 of the anchor part 9 is on this one with an opening for Implementation of a contact spring 42 provided. Lifting plate. 46 attached for the middle contact spring 43 to be moved. -When the relay is excited, the attracting armature 6 the contact spring 43 via the lifting plate 46 into each other Contact position pulled. Opposite known 'relays; with similar Contact sets allows the relay described, as a result.

des. Distance between the bearing point of the angled armature from

-15-

■ • its inner edge, the point of application of the be-V on the anchor. V fixed lifting plate as close to the one on the contact'- ' , spring 43 arranged -contact piece to lay. This prevents '' uncontrolled mechanical oscillation of the contact springs, whereby the bouncing of the contacts when making contact is effectively avoided. '■. '.

By preventing the mechanical oscillation of the contact

»■

springs is the bouncing of the contacts to at least the same extent in an arrangement of the contact (not shown); members avoided, which is similar to that of Fig.5. In this further embodiment, the lifting plate 46 fastened to the armature part 3 acts on an extension of the middle ; _-. Contact spring 43 from within its contact pieces, while the ..; -; on the further carrier 44 attached support plate 45, which has a V-. Has opening for the central contact spring 43, which; · ■; -Contact springs within their contact pieces.

■ ί ■ '■■■■' ■■ .-

• The described contact arrangements. can also vice versa -. ■ ..: are moved by moving the outer contact springs, 42 and the ν /. · -., . Middle contact spring 43 are held, "why again." { appropriate support plates and lifting plates are provided. ■

The same advantageous effect can according to "Fig. ^" Also ■ with short contact springs 47 and 48, the are in turn anchored in the support 41 attached to the yoke part 3. A lifting plate 4S is -on the anchor part 9 below the;

■■■■ - ^:. ■■ - ■ ^'::' ■ ■■ ".. -16-- ■ - .: * '■ - ■■ ■■ .-

• formed by the cutting edge 4 of the yoke part 3. Camp- ; - · place attached, and engages an extension of the ■ ;. middle contact spring 48 to be moved. With the suit ■, .- ■ · ■ = '. of the armature, the armature part 9 presses the lifting plate 49 and ■ · ■ · '■ so that the contact spring 48 in the other contact position.

In Fig.> 7-, an embodiment of the relay is shown, ' / in which both above and below the through the Cutting edge 4 of the yoke part 3 formed bearing point lying Active surfaces of the armature part 9 for the actuation of contact pieces are exploited. Two contact springs 50 and 51 are anchored in the carrier 41 attached to the yoke part 3, and the contact spring 50 escapes by means of the further carrier '44 on the rope lying above the level of the cutting edge 4 is led. Another contact spring 52 'is inclined arranged between the contact pieces of the contact springs 50, 51 and on one with a corresponding incline surface provided, above and below-the cutting edge 4- ■ - · '. . attached to the anchor part 9 insulating support '. At the When the armature is tightened, the contact spring 52 moves as the tangent of a circle, the center of which is the cutting edge. 4 is and makes contacts with the contact pieces of: .Contact springs 50, 51, whereby these are connected to one another; .-. ' will. In the relay according to Fig. 7 there are two contacts arranged in series, which means switching higher ^ voltages or, an inductive load in simpler. Way enables

-17 «

■ ^; ; · ^: - The relay described can of course also be used with other '-

/ Contact sets can be populated, in particular, with several, ; ■.-.-; .. "; ' Subdivide contacts arranged next to one another or one on top of the other.

,;, Of particular advantage is the fact that the packets ..- · . ';''. ■ spring with the contact, which are designed for example according to Fig. 5 "■ - V ·' ■■, 1 and 6, put together beforehand and - ;. · ■:: eg cast in an insulating carrier, injected.; ^: '· ^.: ■' · '■ .. or can be pressed in. This insulating carrier :.' · · ■ ■;., is preferably with cams 22 according to Figures 2 and 4 comparable ■ '' ■ ■ ·: see ■■ .- "so that the package of pre-contact!

■, ■■ springs without / the expense of the previously disadvantageous adjustment,

■ ·· ■, - work on the tabs 14 in the manner described '-:;, ::: (Fig.l, 2) can be attached. . '·' "■ '.. · ■ ·" -.' ■ '■';

^: · ■: · - In Fig. 8 is a particularly advantageous one. Arrangement of /. . · Connection elements for winding the wound coil - :,. ;; .'bodies of FIG. 3 are shown. A 'flange 61 ^, the one; . ' ·

'·.; -: limited winding 62 applied to the bobbin, ; '.'; '■ "' is provided with. Two recesses 63 and 64, which. For example;

cuboid and essentially only on the side of the, ·. Flange edge are open ... On the inside of the flange: ^■■::; 61 is one that is open towards the recess 63 or 64: channel 65 "'■ · ..-.' or 66. One channel 65 leads to the outer edge of the winding 62, that is to the end of the winding, and the other channel G6 leads to the winding which is not visible in FIG.

■ .. \ - ■■;, ..;. · Body, * so at the beginning of the winding ,. Furthermore, each is ■ ·. '· ■.': '■' ■ _-; Recess 63, 64 with a slot 67 or 68 "; · '.' / ';';.: ■ see which on the outside of the flange 61 -. ■ '■" ν - "- "-'''.- is ordered and is open at the edge of the flange 61. ^1st _. .._ .; ■ -._ ..,. , The other end of each slot 67, 68 is a ■

■ ■; ". ',. / Cylindrical bore 69 or 70 widened to · ..: ^l ..'" I der'Aoutside of the flange 61 open, on whose ..; ■" .. '.- *' ■■ '.'. ' ^ Inside but closed 1st, '■' ■■ ''

'■ ^V; . ' According to Fig. 9 this is to be inserted into the recesses

v ' ^: ,,; V 'connection element 71 is designed as a pin, which is close to ^; ; -. · '; ■. . one end is provided with a crosspiece 72 ', 73 *

■ ".. ^ V. ^: ; The transverse web has a front part 72 and a widened. ';' - * -", ■■ text approach 73 '. The width of the extension 73 corresponds to the height of the recesses 63, 64. (Fig. 8) ₄ '^{72; -;}"A'■ ■ the dimensions of the pin 71 in the supply / des-crosspiece: ·." ■■ "" / 73 and above the web, are also with the dimensions. ■■ ^: 'A ^r I, ;; -.--- of the cylindrical bores 69, 70 in the flange 61 so from- • _ ■ "■; --λ - \ - agreed that the pin 71 can be rotated in the bores 69, // ■ " ^: ■ /; ■ 70. The one below, the transverse web 72, 73 //, ^: ■■ · ■;".'-"■ .. '·, the lying part of the pin 71 can be designed in any way ·'. · ■ /..--- ·; ■", for example according to FIG. 9 in a form which /

• · · for plugging in and soldering in printed circuits / '■. / or suitable for wrapping with a jumper wire. ;

-19-

•. ·· ■ Another form of formation of the lower part of the pen ^; -. ',; : 71 is the form shown in FIG. 3 as a flat contact · ': ..,' r- zn plugging into a single flat plug element or into a corresponding, separate plug part, or for. -. "'.'

-.'- ■ 'Soldering connection wires as soldering lugs. ■

'■' ■ .- "· ■■ - ■

. ■.,. ' -The attachment of the connection pins 71 in the flange 71 · : ■ \ ■ · '"· and · the · soldering of the winding wires to the connection-. · /, ^: . Pins is carried out in the following way:'

'■■ "■" · ... When the winding 62 is folded, the beginning of the winding;.

■. wire in the channel 6 pounds? inserted. The end of the winding, ·: ·

• 'wire is passed after winding .through channel 65 to',. · ■ .v .- '■ -. . out of sen. Then the winding is done in the usual-: / ■ - · '

/:./'..Well, for example, covered with foils. ■ _ _;

.;. ^: '. -: - One connection pin is attached from the outside of the ·, - ''. ■■ ■ .. ": -. ^

'■ the flange 61 into the bore 69 or 70 in the direction of' ■; . ■ '

■■ '■ ' ^{: of} the arrow 74 inserted so that the web 72, 73 ■

^: . ' as shown in phantom in Fig. 8 approximately parallel.

■ / ['-' ■ ι '"., To the channel 67 or 68 lies and over the edge of the flange.

_; ν ':; 61 protrudes. Around the protruding, front web parts 72

'"' ■ / '' '■ •. ■■ are now the winding wires that are attached to the flange ■■ / _ ... ■

/ - 'lateral openings of the channels 65 and 66 are tangible, I.

-20-

wrapped and soldered. Thereupon the connection ·; ^ pins 71 in the direction of arrow 75 'or. in the “Gegen- · • ginMggn. With the help of a pair of pliers or the like, rotated about 90 ° / so that the crosspiece 72, 73 comes to rest entirely in the interior of the recess 63 or 64. · Schüssige winding wire into the recess 63 in bzw.64 forms gezogen.und · there a loop: When Drehen'der pins 71 is also exceeded · "■ '■...

Finally, the recesses 63, 64 filled with a hardening synthetic resin. If the wick treatment 62 has several winding connections, a corresponding one is created for each winding connection that is led to the outside Guide to inserting a connector pin to which the corresponding winding wire is soldered on, provided. The entire bobbin with the flange 61 can be in a plastic injection molding process or a plastic compression molding process together with all recesses, channels and · .. slots are produced. ■ '".. ■■': ';;;,

The described training of the connection elements for Winding and its arrangement in the flange of the bobbin has the advantage that when soldering the wire ends No tension on the winding wire with the connecting pins · ■ is exerted, thereby tearing off the winding wire

-21-.

is avoided. Since when screwing in the crossbar

of the connection pin in the 'recess a wire loop · Educates, is definitely e.in even with this process

Avoid tearing off the wire. Since the connector pin; ■ also after the recess has been cast at least ah-. approximated'from cured synthetic resin is surrounded, loading.

is only a very small risk that ^one would offer the one connecting it to the connector pin sdraht the transferred heat the instance niekrschmelzenden ■ · · 'flange that. strongly heated ; that the connection pin in the flange can loosen or even fall out of the flange. Another advantage is that the; 'Wire ends never reach the surface of the inside and outside of the flange, ¹ but everywhere through · an insulating layer: from flange material opposite "■" the. Winding and the outside are covered. That; . \ Same thing is on the inside of the flange for the. Connector pin; the case. . '. '"' ^: ";"

-22-

Claims (1)

P.A. 20 2 «2-6 A 58 , Protection claims t ' 1. Electromagnetic relay with a fixed iron core carrying a wound bobbin and a hinged armature which is moveable on a yoke connected to the iron core and actuates at least one contact member, -] characterized in that the core (1) and the yoke (2,3 ) j in one piece as at least twice angled body are formed and that the core and yoke are at least approximately j . ■■ '■ - · - ■ ■. "■ i have a rectangular cross-section. - * · { 2, relay 'according to claim 1 ,. characterized , -ι that the free end of the yoke has a cutting edge (4) for mounting a; "■■■■■ '■■' ■■. - -" 'i has angled anchor ('6), the inside of which in a Distance from the angled inner edge (11) with one of the cutting edges; (4) corresponding groove (10) is provided. . . ,. 3. Relay according to claim 2, characterized that the anchor parts lying on both sides of the groove (10) are at least are approximately dynamically balanced. : .4. Relay according to Claims 1 and 2, characterized in that the yoke part (3) having the cutting edge (4) is angled at least approximately parallel to the core (1) and has a shorter length than the core (1). " ^: '■, ■■■ ■; ·. ■■■■■: ■' - "-. ·. ■. ·" ■ '.- ■ --23'<> · ■ ■ '■> ::: ■ ■ - ■ '■ -' ...-..- ■■: - '■ ::. [: _ ■■' ■■ '. ^{; :} V - ■■ - 5. Relay according to claim 2, characterized in that that the armature (6) is exposed to the pressure of a tension spring (13) pressing it against the cutting edge (4). 6. Relay according to claim 5, characterized in that the tension spring (13) as an elongated und.gebogene Wire spring is formed, which in one on the outside of the armature (6). the groove (10) arranged opposite one another Groove, (16) attacks. . 7. Relay according to Claims 1 and 2, characterized in that that the length of the cutting edge (4) and the width of the Anchor (6) at the point of the groove (10) provided for receiving the cutting edge (4) are larger than the width of the core (1) 8.: Relay according to claims 1 and 2, characterized in that the yoke part provided with the cutting edge (4) (3) has a stop cam (5) for the armature (6) in order to . '· -..- ■■ "■'" ■ i · ■ ■ ■ " an air gap (8) between the yoke part (3) and the armature, (6) to effect '■ - · "■' '■' ■■ '■■■■ ■■' ■■■■" ■■ ...'----- I --- '' '- "' '.- ■ ■■■■■ ■ ■ ■ · ■ - ■ i ■ ■ " 9. Relay according to Claims 1 'and 2, characterized in that on the yoke (2, 3) at least one contact member (21; 42, 43; 47, 48; 50, 51,. 52) is attached to which the _.; the angled anchor part (9) having the groove (10) acts with its outer surface lying on one and / or the other side of the groove (10) by means of Dr ₁ UCk and / or tension. ..- ■ -. ' ■■ »··. ■. : -; ■■■■ ■ '.- ■■:. ■ -. '. : ■■■ '.. ;. ^: '".24 ■ ■ -" ■ ■' ■■ " - '■■■'·>.■": ■■ '■■■ ..'" 10. Relay according to claim 1, characterized in that that the yoke (2,3) with rag. (14,36) for fastening the Relay and / or the contact elements (21; 42, 43; 47, 48; 50, -.- .51, 52) provided iät «<■> ■ 11. Relay according to Claims 9 and 10, characterized in that the yoke part having the cutting edge (4) (3) with two at right angles to the yoke part (3) arranged ^. e.g. bent flaps (14) are provided. 12. Relay according to Claims 6 and 11, characterized in that the tabs (14) each have a Loph (15) are provided for inserting and holding the wire spring (13). 13. Relay according to claims 2 and 11, thereby ge / indicates that the tabs (14) each point inwards, pointing, as a mechanical restraint for the anchor (6) trained cams (17) are provided. 'j 14. Relay according to claim 11, characterized in that ' that the tabs' (14) each have at least one slot (18; 19) i \ for receiving fastening cams (22) of a contact element. [: (21) have, · j ^f 15. Relay according to claim 14, characterized in that that each tab (14) has · two slits | (18,19) is provided, one of which (19) is angled-.istj - -25 .- ■ '■■■:) ■ # ■ 19. Relay according to claims IG and 18, thereby ge -... indicates that the junction angled from the core (1) ..- (2) two lobes (36l, 'each with an outside the edge of the flange (27) of the sink body arranged Hole for fastening .the relay, ... e.g. with a threaded hole (37) »are provided. . 16. Relay according to claim 1, characterized in that the core (1) is provided on its narrow sides with at least one notch (30) each for engaging cams, wel- ■ - ■ before in the for the core (1 ) certain opening of the bobbin are provided. - 17. Relay according to claims 1 and 11, thereby- ■ . denote ^ that the tabs (14) of the yoke part (3) with each a cam (39), e.g. a dovetail-like design? deten cam, and one flange (26) of the bobbin /. .J with two arm-like recesses (38) for the cams (39); '■■■' ■ ^: · '■ · ■'"-'-'I • pointing extensions are provided in such a way that the yoke ¹ I and the coil body mechanically engage firmly in one another. · J . 18 »· Relay according to Claim 1, characterized in that.; ; \ ■ ■ '■. ;. ■■. ' _ ■ ''. '■■ "'. '" ■■■ -! ■ that one flange (.27) of the bobbin is on its \ • Outside a recess (3.1) for inserting the core. ! . . "■ ''. ■ '■" ■■' ■ ■■ ■ - "- '. { (1) angled .Jochteils (2), · '[ - 26 - 20. Relay according to claim 1, characterized in that ». ; that dBr armature-side flange (26) of the bobbin on '* ·. ",
its outside with a recess (32) for insertion
one of the end of the core (1) protruding into the recess (32) -,
fully or partially enclosing short-circuit ring (33)
is provided. 21. Relay according to claim 1 »characterized in that
that the wound bobbin is provided on at least one bobbin flange (61) with connection eggs inserted into the flange, each of which has one on the flange outer surface j • protruding (71) and one in an open on the flange edge, | on the inner and outer surface of the flange approximated ' Λ ■ closed recess (63,64) arranged part (72,73), j which latter is connected to the winding wire, on- · 22. Relay according to claim 21 »characterized in that ■; that the recesses (-.63,64) on the inside of the flange _: cal (61) arranged channels (65,66) for inserting the ( the winding (62) led to the recesses (63,64) · ·; Winding wires and open at the flange edge, ^ in the out openings (63,64) each one on the outside of the flange, ' cal open bore (69.70) widening slots (67.68) '■' for introducing a with a transverse web (72,73) Have connecting pin (71). . ' ',. , -23. Relay according to Claim 22, characterized in that: that the transverse web (72,73) of each connecting pin (71) is longer is than the distance of the hole (69,70) from the flange edge and the width of the recess (63, 64) is greater than the length of the transverse web (72,73) the whole for the purpose that the transverse web (72) of the in the bore (69,70) and the slot (67,68) inserted connection pin (71) can protrude over the flange edge and connected to the winding wire and after. connecting the winding wire by turning the connector Pin (71) completely inside the recess, (63, 64) can be accommodated. . . '} 24. Relay according to claim 2.3', characterized in that '' that the recesses (63, 64) are encapsulated with a filling compound, for example a hardening synthetic resin »; 28 - t ■ - ■