DE102013210211B4 - Contact bridge for switching contact assembly and selbige and method and apparatus for their preparation - Google Patents

Abstract

Contact bridge (2) for a switching contact assembly (1) of an electrical switching element, with a switching side (22) and with a side opposite the switching side (22) arranged underside (23), in which a recess (24) for receiving a spring element (4) Supporting the contact bridge (2) is formed, wherein the recess (24) opposite a bulge (26) on the switching side (22) is formed, characterized in that the bulge (26) on the switching side (22) has an embossing.

Description

The present invention relates to a contact bridge for a switching contact assembly of an electrical switching element, with a switching side and one of the switching side opposite arranged bottom, in which a recess for receiving the spring element for supporting the contact bridge is formed, wherein the recess opposite a bulge on the switching side of Contact bridge is formed.

Furthermore, the invention relates to a switching contact assembly for an electrical switching element, with a contact bridge and with a spring element in which the contact bridge is resiliently mounted counter to a switching direction of the switching contact assembly.

Furthermore, the invention relates to a method for producing a switching contact assembly for an electrical switching element, wherein a contact bridge is resiliently mounted on a spring element against a switching direction.

Finally, the invention relates to a device for manufacturing or a calibration device for a switching contact assembly.

Contact bridges, switching contact assemblies and methods for their preparation of the type mentioned above are known from the prior art. Such switching contact assemblies usually fulfill the switching function in switching elements such as e.g. Relays, especially high current relay, for electric or hybrid vehicles and are driven by an actuator. The actuator moves the switch contact assembly in and against the switching direction to the mating contacts to and from this away and keeps the contact bridge in the closed state of the relay to the mating contacts.

In particular, in switching elements, such as contactors and relays in electric or hybrid vehicles acting in the switching direction contact forces are applied by the spring element, which is usually designed as a helical compression spring and biased between the designed as a drive shaft actuator and a shaft suspended, movable switching contact assembly is installed , With such contactors and relays, high short-circuit currents occur for a short time, which generate relatively high repulsive forces at usually narrowed contact points. Therefore, high contact forces are required to counteract the Repulsivkräften and to generate the relatively high contact forces are again correspondingly large-sized compression springs necessary.

A fitting length of such spring elements measured substantially parallel to the switching direction has problems in their placement between the actuator and the switching contact assembly, in particular, when the smallest possible space-optimized switching elements, such as contactors or relays are to be provided. In addition, it can prove to be problematic if the compression springs must be positioned by suitable measures radially to a longitudinal axis of the switching contact assembly and secured during assembly and operation of the switching contact assemblies against loss. In addition, any spring tolerances require calibration, i. Setting the spring force acting in the switching direction.

For example, switching contact assemblies are known, which have as a contact bridge holder a cross-sectionally U-shaped sheet metal cage, which is fastened with its horizontal bottom on the drive shaft. In the sheet metal cage a contact bridge is mounted movably. A spring element is supported between the contact assembly and a substantially horizontal bottom as a mounting base for the drive shaft and is thus biased. A cylindrical increase in the form of a rivet secures the compression spring radially.

The publication DE 35 45 789 A1 describes a moving contact carrier switching device having an asymmetrical cross section with a protrusion that can be produced by a pressing operation. The publication DE 91 01 973 U1 describes a switch-fuse unit with a contact bridge having two contact legs interconnected by a yoke, which together with the yoke form a U-shape, wherein a coil spring between the two legs rests on the yoke rests. The publication US 5,594,398 A describes a fault current circuit breaker with a component which is designed as a kind of locking block with a central opening and has two arranged on lateral arms receptacles for contact carrier.

Furthermore, switching contact assemblies with a contact bridge are known which have for mounting the contact bridge in a likewise in cross section U-shaped cage centrally disposed therein flanges, which protrude into corresponding recesses on the U-shaped cage. By deforming these flanges, a path-dependent force calibration of the compression spring is possible. The disadvantage here, however, that an installation length of the spring affects the contact chamber height of a corresponding contactor or relays significantly. During force calibration, the contact position in the switching direction is changed by deforming the suspension flanges on the contact bridge.

In view of the above-mentioned disadvantages of known from the prior art switching contact assemblies, the invention has for its object to provide a switching contact assembly with the lowest possible height, in which the spring force can be calibrated substantially without influence on the contact position.

For the above-mentioned contact group, this object is achieved in that the bulge has an embossing on the switching side.

In the case of the switching contact assembly mentioned at the outset, the object is achieved according to the invention in that the contact bridge is configured according to the invention and an upper spring end of the spring element is arranged in the recess.

In the aforementioned method, the object is achieved in that an upper spring end of the spring element is arranged in a recess formed on the contact bridge.

In the case of the device for production or calibration mentioned at the outset, the object is achieved in that it is designed to carry out a method according to the invention.

The solutions according to the invention have the advantage that increased by the depression of the space available for the spring element space in the switching direction and thus the height of the switching contact assembly over known from the prior art switching contact assemblies can be reduced. Furthermore, the spring element with respect to the longitudinal axis of the switching contact assembly can be centered in the recess and thus held captive on the switching contact assembly. In addition, the spring force exerted by the spring element spring force can be adjusted by changing the depth measured in the direction of the depression. The bulge can be formed from the displaced during the formation of the recess material. Since this bulge on the underside of the recess or its bottom is opposite, can be displaced by a manipulation of the bulge of the upper spring end supporting ground substantially parallel to the switching direction and thereby the spring force calibrated or adjusted.

The recess may be arranged substantially centrally between at least two contact arms of the contact bridge. Thus, the spring element can be easily centered between the contact arms, which can for example each carry at least one contact element.

The recess may be substantially circular, for example formed as a recess. Due to the shape as a circular recess, in particular a spring element configured as a spiral compression spring can simply be centered in the recess.

The recess may have a substantially planar bottom. Thus, the spring element may be supported in a plane extending substantially perpendicular to the switching direction in the recess. The upper end of the spring can rest on the flat floor.

A curved towards the center of the recess edge region of the recess may at least partially form at least one arranged on the underside securing element for locking the spring element. In other words, a wall surrounding the bottom of the recess may have a kind of undercut. Thus, the upper end of the spring element non-positively and / or positively held captive by the edge region or in the undercut and at the same time be centered by the wall.

The at least one securing element can form a retaining ring arranged concentrically with the recess. For example, the ring can be designed as a single, for example, circular, concentric with the recess arranged fuse element.

Alternatively or additionally, a plurality of securing elements may be arranged around the recess. The securing elements may be arranged opposite and / or star-shaped around the depression. Thus, the upper end of the spring element can be easily secured to the contact bridge and at the same time center in the depression.

The contact bridge may comprise a contact carrier into which the recess may be stamped. Also, the at least one securing element may be embossed in the contact carrier. Thus, depression and / or securing element can be easily shaped.

The bulge can be formed as a curvature. As such, the height of the bulge and thus the depth of the recess or arrangement of the soil in the switching direction can be manipulated very easily.

The bulge may have an embossing on the switching side. Thus, by the embossing of the bottom of the recess may be displaced substantially parallel to the switching direction. It is also possible to apply a plurality of embossments arranged around the central axis of the switching contact assembly in the regions of the bulge, to which opposite to the upper end of the spring element rests on the bottom of the recess. Thus, the areas of the bottom can be selectively displaced substantially parallel to the switching direction, which contribute to an adjustment or adjustment of the length of the spring element and thus its spring force.

In the case of the switching contact assembly mentioned at the outset, the solution according to the invention can be further improved, for example, by holding the spring element clamped between the contact bridge and a mounting base of a contact bridge holder, which forms at least one retaining leg against which the contact bridge rests in a rest position of the switching contact assembly. The holding leg and the mounting base may be integrally formed with each other.

The at least one retaining limb may have at least two stops for the contact bridge which are spaced apart from one another in the longitudinal direction of the switching contact assembly. The stops may be formed as extending away from each other or transverse to the switching direction protrusions. At least one retaining leg can be deflected away elastically away from the switching contact assembly in order to be able to insert the switching contact assembly as simply as possible into the contact bridge holder. At least one retaining leg can form two guide surfaces leading away from one another and running parallel to the switching direction for the contact bridge. Thus, the contact bridge can be performed as simple as possible substantially parallel to the switching direction.

The at least one retaining leg may be provided with a connecting portion, wherein the connecting portion may be configured as a pure movement of the switching contact bridge parallel to the switching direction limiting guide portion. The contact bridge holder can be provided with two retaining legs which are based on the fastening base, wherein the retaining legs can be arranged opposite one another in a transverse direction of the switching contact bridge. The two holding legs can specify at least three bearing points for the contact bridge. Thus, the contact bridge can be kept as possible in a plane extending substantially perpendicular to the switching direction. The stops may abut against the switching direction to a common stop plane, wherein the contact bridge may have at least one transversely projecting abutment protrusion, which rests in the rest position on the holding leg. Thus, the contact bridge can be very easily supported in the switching direction.

The attachment base may be configured with a mounting aperture that extends substantially parallel to the shift direction. An actuator can thus be very easily attached to the mounting base. For example, the actuator can be riveted to the mounting base, wherein an upper end of the actuator protrude through the mounting hole of the mounting base and form a rivet head there. Thus, the spring element can be clamped captive in the contact bridge holder and the switching contact assembly can be handled in one piece.

In the aforementioned method, the solution according to the invention can be further improved, for example, by embossing the depression in a contact carrier of the contact bridge. The embossing process can be performed very reliably in high clock rates with high precision.

The spring element can be clamped between the bottom of the recess and a contact bridge holder and a spring force of the spring can be changed by changing the position of the floor parallel to the switching direction. For example, for this purpose, as already mentioned above, the contact bridge holder is embossed on the switching side or acted upon in such a way that the bottom of the depression is at least partially displaced substantially parallel to the switching direction.

In the description of the embodiment, the same features and elements are provided with the same reference numerals for the sake of simplicity. Features and elements having the same or at least similar functionality generally have the same reference number or letter, which is provided with one or more apostrophe to indicate another embodiment.

• 1 eine schematische Perspektivansicht einer erfindungsgemäßen Schaltkontaktbaugruppe;
• 2 eine schematische Querschnittsansicht der in 1 gezeigten Schaltkontaktbaugruppe entlang der in 1 eingezeichneten Schnittlinie A-A;
• 3 eine schematische Querschnittsansicht der in 1 und 2 gezeigten Schaltkontaktbaugruppe entlang der in 2 eingezeichneten Schnittlinie B-B;
• 4 eine schematische Unteransicht einer ersten Ausführungsform einer erfindungsgemäßen Kontaktbrücke mit daran befestigtem Federelement;
• 5 eine schematische Querschnittsansicht der in 4 gezeigten Kontaktbrücke entlang der in 4 eingezeichneten Schnittlinie C-C;
• 6 eine schematische Perspektivansicht einer zweiten Ausführungsform einer erfindungsgemäßen Kontaktbrücke mit daran befestigtem Federelement;
• 7 eine schematische Unteransicht der in 6 gezeigten Kontaktbrücke;
• 8 eine schematische Perspektivansicht einer dritten Ausführungsform einer erfindungsgemäßen Kontaktbrücke;
• 9 eine schematische Unteransicht der in 8 gezeigten Kontaktbrücke; und
• 10 eine schematische Querschnittsansicht der in 1 bis 3 gezeigten Schaltkontaktbaugruppe entlang der in 2 eingezeichneten Schnittlinie A-A in einer Vorrichtung zur Herstellung der Schaltkontaktbaugruppe bzw. zur Kalibrierung der Federkraft des Federelements.

Show it:

• 1 a schematic perspective view of a switching contact assembly according to the invention;
• 2 a schematic cross-sectional view of in 1 shown switching contact assembly along in 1 drawn section line AA;
• 3 a schematic cross-sectional view of in 1 and 2 shown switching contact assembly along in 2 drawn section line BB;
• 4 a schematic bottom view of a first embodiment of a contact bridge according to the invention with attached spring element;
• 5 a schematic cross-sectional view of in 4 shown contact bridge along in 4 Plotted section line CC;
• 6 a schematic perspective view of a second embodiment of a contact bridge according to the invention with attached spring element;
• 7 a schematic bottom view of in 6 shown contact bridge;
• 8th a schematic perspective view of a third embodiment of a contact bridge according to the invention;
• 9 a schematic bottom view of in 8th shown contact bridge; and
• 10 a schematic cross-sectional view of in 1 to 3 shown switching contact assembly along in 2 drawn section line AA in a device for producing the switching contact assembly or for calibrating the spring force of the spring element.

First, the invention is based on 1 explains that a switching contact assembly according to the invention 1 in a schematic perspective view in a rest position R shows. The switching contact assembly 1 includes a contact bridge or a contact member 2 , a contact bridge holder 3 , a spring element 4 and an actuator 5 in the form of a shaft.

The contact bridge 2 or the contact member comprises a contact carrier 20 and two electrical contact elements 21 , each one a contact arm 20a or. 20b of the contact carrier 20 assigned. The contact elements 21 are on a top or switching side 22 of the contact carrier 20 appropriate. The switching side 22 points in a switching direction S the switching contact assembly 1 , In the switching direction S should the contact elements 21 with mating contact elements 121 on a mating contact assembly 100 (please refer 2 ) or a comprehensive this switching element are merged by one in the switching direction S acting switching force on the actuator 3 , the spring 4 and the contact carrier 20 on the contact elements 21 is exercised.

On a bottom 23 of the contact carrier 23 , which counteract the switching direction S indicates is a depression 24 (please refer 2 and 3 ) formed a floor 24a , Side walls 24b and a side edge 25 for supporting the spring element 4 in shift direction S or for its centering about a longitudinal axis L ₁ the switching contact assembly 1 has, at the same time the longitudinal axis L ₄ of the spring element 4 as well as longitudinal axis L ₅ of the actuator may be. The depression on the switch side 22 opposite is a bulge 26 formed. The bulge 26 can be like in 1 shown in the direction of shift S be arched or from the top 22 bulge, leaving the switch side 22 in the area of the bulge 26 in shift direction S is curved.

Furthermore, on the contact carrier 20 Location projections 20c and 20d shaped, extending in a transverse direction Y the switching contact arrangement 1 from the contact arms 20a and 20b extend substantially parallel to a longitudinal direction X the switching contact assembly 1 or contact bridge 2 run. The longitudinal direction X and the transverse direction Y are perpendicular to a height direction Z the switching contact assembly 1 to which the switching direction S as well as the longitudinal axes L ₁ . L ₄ and L ₅ run essentially parallel. The longitudinal direction X , the transverse direction Y and the height direction Z together form a Cartesian coordinate system.

The contact bridge holder 3 has a mounting base 30a which are essentially in a longitudinal direction X and transverse direction Y spanned plane extends, as well as two retaining legs 30b , which are essentially parallel to the switching direction S or substantially perpendicularly from the mounting base 30a extend away. In shift direction S pointing free ends 31 the holding leg 30b are in or against the transverse direction Y from the longitudinal axis L ₁ the switching contact assembly 1 bent. At the ends 31 is in each case at least one retaining projection 32 shaped, which is essentially in a longitudinal direction X and transverse direction Y extending plane extends and one opposite to the switching direction S pointing stop 33 for the investment projections 20c or. 20d of the contact carrier 20 formed.

2 shows the switch contact assembly 1 in a schematic cross-sectional view along the in 1 drawn cutting line AA , The spring element 4 has a spring body designed as a spiral spring 40 , An upper spring end 41 of the spring body 40 points in the direction of shift S to the contact bridge 2 and is in the depression 24 added. The upper end of the spring 41 is in the shift direction S on the ground 24a the depression 24 supported and laterally from the side walls 24b the depression 24 surrounded so that the spring element 4 around the longitudinal axis L ₁ the switching contact arrangement 1 is centered. The lower end of the spring 41 is on one of the mounting base 30a of the contact bridge holder 3 trained and in the switching direction S pointing support surface 34 of the contact bridge holder 3 supported.

Furthermore, in the mounting base 30a a passage opening 35 for the actuator 5 formed. The actuator 5 has a shaft 50 which may be hollow, for example. An upper end section 51 of the shaft 50 is with a collar or flange 52 provided, the one opposite to the switching direction S looking attack 53 formed. The stop 53 is located on one of the underside of the mounting base 30a trained actuating surface 36 to get over the actuator 5 one in the direction of the shift S acting switching force F _s on the switching contact assembly 1 to be able to exercise. Above the ring collar 52 is the actuator 5 with a fastener 54 , For example, provided in the form of a rivet head, via which the actuator 5 positive and / or non-positive with the mounting base 30a can be connected. Below the ring collar 25 an operating section extends 55 of the actuator 5 , which according to the respective requirements according to be designed so that the switching force F _s on the actuator 5 can be transferred.

Furthermore, in 2 a mating contact assembly 100 shown, which in each case on a mating contact carrier 120 attached counter contact elements 121 shows that contrary to the switching direction S have and are configured to be electrically conductive in contact with the contact elements 21 to be brought.

3 shows the switch contact assembly 1 in a schematic cross-sectional view along the in 2 drawn cutting line BB , Here is particularly clear how the investment projections 20c and 20d in the rest position R at the of the retaining projections 32 trained attacks 33 issue. The holding thighs 30a and 30b each form guide surfaces 37 off, the a scope of movement of the contact carrier 20 in or against the transverse direction Y limit and thus the contact carrier 20 essentially parallel to the plug-in direction S to lead.

Further shows 3 that between the retaining legs 30a and 30b on the one hand and the mounting base 30a on the other hand an interior 38 of the contact bridge holder 3 is stretched in the direction of shift S through the contact bridge 2 limited and in which the spring element 4 is included. Contrary to the switching direction S is the interior 38 over one between the free ends 31 the holding leg 30a and 30b formed access opening 39 accessible, through which the fastener 54 of the actuator 5 , the spring element 4 as well as the contact bridge 2 can be mounted. For example, this may be the fastener first 54 with the mounting base 30a get connected. Subsequently, the spring element 4 in the interior 38 to be placed. After that, the holding legs 30a and 30b in or against the transverse direction Y bent apart, the contact bridge holder 3 in shift direction S below the stops 33 placed and finally the holding thighs 30a and 30b back to the in 3 shown position are moved, in which the spring element 4 between the attacks 33 supported contact bridge holder 3 the support surface 34 the mounting base 30a is clamped.

4 shows the contact carrier 20 with attached spring element 4 in a schematic perspective partially cut bottom view. The lower end of the spring 41 is in the depression 24 used, whose lateral edge 25 the upper spring end engages or counter to the switching direction S so engages behind that the spring element 4 captive with the contact carrier 20 connected is. So is the side edge 25 in the in 4 shown embodiment part of a fuse element 27 for securing or locking the spring element 4 on the contact carrier 20 , The fuse element 27 forms a concentric to the depression 24 arranged circlip 28 who is the edge 25 the depression 24 training and concentric to deepening through a likewise 24 arranged groove or embossing 29 from remaining sections of the bottom 23 of the contact carrier 20 is discontinued.

5 shows the in 4 including spring element 4 illustrated contact carrier 20 in a schematic cross-sectional view along the in 4 drawn cutting line CC , The imprint 29 for example, as the depression 24 circumferential recess be formed by using a substantially cylindrical tool 200 which is a substantially circular cutting edge 201 has, in the bottom 23 of the contact carrier 20 concentric around the depression 23 is penetrated around, so that the side walls 24a the depression 24 forming material towards the central axis L ₁ the switching contact assembly 1 is displaced. So can the edge 25 the depression 24 in a sense above or behind the upper end 41 or one the upper end 41 forming winding of the spring element 4 or the like bent, ie plastically deformed. One from the tool 200 applied tool force F ₂₀₀ acts in such a way substantially parallel to the switching direction S that the plastically deformed sidewalls 24b essentially perpendicular to the switching direction S or to the longitudinal axis L ₁ the switching contact assembly 1 acting holding forces F _24b on the top end 41 of the spring element 4 impact and this thus captive with the contact carrier 20 connected is.

6 shows a schematic perspective bottom view of another embodiment of the invention with a spring element 4 provided contact carrier 20 ' , The contact carrier 20 ' has three star-shaped in the longitudinal axis L ₁ the switching contact arrangement 1 arranged security elements 27 ' on, each one by one on the bottom 23 of the contact carrier 20 ' introduced imprint 29 are formed and together a kind of retaining ring 28 ' form.

7 shows the contact carrier 20 ' in a schematic bottom view. Here it becomes clear that the security elements 29 star-shaped around a center M of the contact carrier 20 ' or the switching contact module 1 are arranged around and thus each part of the edge region 25 towards the center M which is at the same time the center of the depression 24 represents.

8th shows a schematic perspective bottom view of a third embodiment of a contact carrier according to the invention 20 " on his bottom 23 with a multitude of concentric around the longitudinal axis L or recess 24 arranged around fuse elements 27 " is provided, each by an imprint 29 are formed.

9 shows the third embodiment of the in 8th illustrated contact carrier 20 " in a schematic bottom view. Here it becomes clear that in the field of security elements 27 " one border area each 25 the depression 24 so plastically deformed is that the edge area towards the center M is shifted or displaced that he is in a projection in the plugging direction S with the lower spring end 41 overlaps and thus the spring element 4 captive with the contact carrier 20 " connects, as well as in the first and second embodiments of the contact carrier 20 or. 20 ' the case is. Together, the fuse elements form 27 " So also a circlip 28 " around the depression 24 that is the spring element 4 safe and centered in the well 24 holds.

10 shows the switch contact assembly 1 with an inventive for calibrating a spring force F ₄ of the spring element 4 clamped contact carrier 20 . 20 ' . 20 " , A calibrant 300 or calibration tool is substantially concentric with the bulge 26 or the longitudinal axis L ₁ arranged and is opposite to the switching direction on the bulge 26 lowered. The contact arms 20a and 20b of the contact carrier 20 . 20 ' . 20 " are each opposite to the switching direction S on a frame-fixed system 302 filed and thus on the calibration medium 300 contrary to the switching direction S acting calibrators F ₃₀₀ supported. down device 303 can each counter to the switching direction S on the contact carrier 20 . 20 ' . 20 " or its contact arms 20a and 20b interact with these on the plants 302 to fix. calibration 300 , Calibration element 301 , Investment 302 and / or hold downs 304 can together a manufacturing and calibration device according to the invention 304 form.

By means of a calibration agent 300 trained calibration element 301 which is one substantially in one of the longitudinal direction X and transverse direction Y span plane lying stamping surface can act, is the calibration force F ₃₀₀ on the bulge 26 transferable. In the uncalibrated state, the bulge can 26 a height h ₂₆ have, for example, between the direction in the switching direction S measured highest point of the bulge 26 and the support surface 34 of the contact bridge holder 3 is measured. Accordingly, the depression 24 or their bottom 24a a substantially parallel to the switching direction S opposite the support surface 34 measured uncalibrated height h ₂₄ respectively. After exposure to the calibration force F ₃₀₀ can the bulge 26 so far in the direction of the support surface 34 plastically deformed or shifted to a calibrated height h _{26 '} and thus the ground 24a the depression 24 a calibrated height h _{24 '} can have.

Consequently, one is substantially parallel to the switching direction S measured height or length of the spring element 4 in the uncalibrated state longer than in the calibrated state. Therefore, the spring element 4 in the calibrated state higher spring forces F ₄ Apply and thus higher switching forces F _s on the contact elements 21 transfer. The of the contact elements 21 in shift direction S applied contact force F ₂ , so can be varied without a substantially in the switching direction S measured height h ₂₁ the contact elements 21 or a switching distance between the contact elements 21 and the mating contact elements 121 to vary. The switching geometry of a switching contact assembly according to the invention 1 So, despite changing the spring force F ₄ to be kept.

Within the scope of the inventive idea, deviations from the embodiments described above are a switching contact assembly according to the invention 1 possible. So can the contact bridge 2 , the contact bridge holder 3 , the spring element 4 and the actuator 5 be designed and proportioned according to the respective requirements.

An inventive contact carrier 20 . 20 ' . 20 " can with any number of, according to the requirements according designed contact arms 20a . 20b , Plant tabs 20c . 20d and contact elements 21 be provided. The contact elements 21 do not necessarily have on the top or switching side 22 of the contact carrier 20 be arranged. Alternatively or additionally, could also be the bottom 24 serve as a switching side on which the contact elements 21 can be arranged. Also the depression 24 can be designed according to the respective requirements and measured as desired heights or depths h ₂₄ . h _{24 '} have as well as a floor 24a , Side walls 24b and a side edge 25 with bulges 26 , Fuse elements 27 . 27 ' . 27 " , Circlips 28 . 28 ' . 28 " and grooves or embossments and / or recesses 29 . 29 ' . 29 " have, which can be arranged according to the respective requirements and dimensioned to the spring element 4 safe to keep and center.

The spring element 4 can be designed according to the respective requirements and an arbitrarily dimensioned spring body 49 , an upper end 41 as well as a lower end 42 have, which can be configured according to the respective requirements. It is not necessarily required, the spring element 4 as shown herein, as a spiral compression spring to design. There are other spring mechanisms that meet the requirements.

The contact bridge holder 3 can according to the requirements with a mounting base 30a , Holding thighs 30b , free ends 31 , Retaining projections 32 , Attacks 33 , Support surfaces 34 , Through holes 35 , Actuating surfaces 36 , Guide surfaces 37 , Interiors 38 and access openings 39 be provided that can be configured according to the respective requirements.

The actuator 5 can according to the requirements according to a shaft 50 with an upper end portion 51 , a collar or flange 52 , a stop 53 , Fasteners 54 and operating sections 55 Be provided with the contact bridge holder 3 co.

The mating contact assembly 100 with the mating contact carrier 120 and the mating contact elements 121 can be configured according to the respective requirements in order with the switching contact assembly 1 co. Any tools 200 with cutting 201 , Calibrant 300 with calibration elements 301 , Plants 302 and hold downs 303 can be configured according to the respective requirements according to the switching contact assembly 1 to edit or calibrate.

shifting forces F _s , Spring forces F ₄ , Holding forces F _24b , Tool forces F ₂₀₀ , Calibration forces F ₃₀₀ can be selected according to the requirements and by means of a height or depth of the recess 24 . h ₂₄ . h ₂₄ , or height h ₂₆ . h _{26 '} the bulge 26 be adjusted according to the respective requirements.

LIST OF REFERENCE NUMBERS

1

Switch contact assembly

2

Contact Bridge / contact organ

3

Contact bridge holder

4

spring element

5

actuator

20, 20 ', 20 "

contact support

20a

contact

20b

contact

20c

abutment projection

20d

abutment projection

21

contact elements

22

Top / side shift

23

bottom

24

deepening

24a

ground

24b

side walls

25

lateral edge

26

bulge

27, 27 ', 27 "

fuse element

28, 28 ', 28 "

circlip

29, 29 ', 29 "

Nut / embossing / recess

30

fixing base

30a

fixing base

30b

holding leg

31

free end of the 30b

32

retaining projection

33

attack

34

support surface

35

Through opening

36

actuating surface

37

guide surface

38

inner space

39

access opening

40

spring body

41

upper spring end

42

lower spring end

50

shaft

51

upper end section

52

Collar / flange

53

attack

54

fastener

100

Counter-contact module

120

Against contact carrier

121

Contact element

200

Tool

201

cutting edge

300

calibration

301

calibration element

302

stable installation

303

down device

304

Manufacturing or calibration device

L

longitudinal axis

M

Center of the depression

S

switching direction

X

longitudinal direction

Y

transversely

Z

height direction

F _s

Operating force

F ₄

spring force

F _24b

holding force

F ₂₀₀

tool force

F ₃₀₀

calibration force

h ₂₁

Height of the contact elements

h ₂₄

Height or depth of the 24th

h _{24 '}

calibrated height or depth of the 24th

h ₂₆

Height of 26

h _{26 '}

calibrated height of 26

Claims (13)

Contact bridge (2) for a switching contact assembly (1) of an electrical switching element, with a switching side (22) and with a side opposite the switching side (22) arranged underside (23), in which a recess (24) for receiving a spring element (4) Supporting the contact bridge (2) is formed, wherein the recess (24) opposite a bulge (26) on the switching side (22) is formed, characterized in that the bulge (26) on the switching side (22) has an embossing. Contact bridge (2) to Claim 1 , characterized in that the recess (24) is arranged substantially centrally between at least two contact arms (20a, 20b) of the contact bridge (2). Contact bridge (2) to Claim 1 or 2 , characterized in that the recess (24) is formed substantially circular. Contact bridge (2) after one of the Claims 1 to 3 , characterized in that the recess (24) has a substantially planar bottom (24a). Contact bridge (2) after one of the Claims 1 to 4 , characterized in that an edge region (25) of the recess (24) arched at least in sections in the direction of the center (M) of the depression (24) acts as at least one securing element (27, 27 ', 27 ") for locking the spring element (4 ) is trained. Contact bridge (2) to Claim 5 , characterized in that the at least one securing element (27, 27 ', 27 ") forms a concentric with the recess (24) arranged securing ring (28, 28' ,, 28"). Contact bridge (2) to Claim 5 or 6 , characterized in that a plurality of securing elements (27, 27 ', 27 ") are arranged around the recess (24). Contact bridge (2) after one of the Claims 1 to 7 , characterized in that the contact bridge (2) comprises a contact carrier (20) into which the recess (24) is embossed. Contact bridge (2) after one of the Claims 1 to 8th , characterized in that the bulge (26) is formed as a curvature. Switching contact assembly (1) for an electrical switching element, with a contact bridge (2) and with a spring element (4) on which the contact bridge (2) against a switching direction (S) of the switch assembly (1) is resiliently mounted, characterized in that the Contact bridge (2) after one of the Claims 1 to 9 configured and an upper spring end (41) of the spring element (4) in a formed on the contact bridge (2) recess (24) is arranged. Switching contact group (1) to Claim 10 , characterized in that the spring element (4) between a bottom (24a) of the recess (24) and a contact bridge holder (3) is clamped. A method for producing a switching contact assembly (1), in particular for use in contactors and relays for electric or hybrid vehicles, wherein a contact bridge (2) on a spring element (4) against a switching direction (S) is resiliently mounted, wherein an upper spring end (41 ) of the spring element (4) in a formed on the contact bridge (2) recess (24) is arranged, characterized in that a spring force (F) of the spring element (4) is changed by one of the recess (24) on a switching side ( 22) the Contact bridge opposite bulge (26) is embossed such that the bottom (24 a) of the recess (24) is displaced parallel to the switching direction (S). Device (304) for producing a switching contact assembly (1), characterized in that the device (304) for carrying out a method according to Claim 12 is designed.

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