EP3298659A1

EP3298659A1 - Conductor connection terminal

Info

Publication number: EP3298659A1
Application number: EP16724384.9A
Authority: EP
Inventors: Frank Hartmann
Original assignee: Wago Verwaltungs GmbH
Current assignee: Wago Verwaltungs GmbH
Priority date: 2015-05-19
Filing date: 2016-05-19
Publication date: 2018-03-28
Anticipated expiration: 2036-05-19
Also published as: EP3298659B1; WO2016184934A1; US10014596B2; CN107636901B; DE102015107853A1; US20180076536A1; CN107636901A; DE102015107853B4

Abstract

The invention relates to a conductor connection terminal (1), comprising an insulating material housing (17), which has a conductor introduction opening (18) for introduction of an electrical conductor (4) and a contact pin introduction opening (24) for introduction of a contact pin (5), comprising a clamping spring (2) for clamping an electrical conductor (4), wherein the clamping spring (2) has a clamping leg (6) having a clamping edge (7) oriented for abutment on the electrical conductor (4) to be clamped, a spring curve (8) and an abutment leg (9), wherein the conductor introduction opening (18) opens out towards the clamping edge (7), in order to guide the electrical conductor (4) to a clamping point formed by the clamping edge (7), and wherein the contact pin introduction opening (24) extends in the opposite direction to the conductor introduction opening (18) into the interior of the insulating material housing (17) and opens out towards the abutment leg (9), in order to guide the contact pin (5) to be clamped onto the abutment leg (9). The abutment leg (9) has an insertion opening (10). The contact element (3) is arranged on the clamping spring (2) in the insertion opening (10) of the abutment leg (9) between the introduced electrical conductor (4) and the contact pin (5). The free end portion of the abutment leg (9) forms a clamping portion (11) for clamping the introduced contact pin (5) between the clamping portion (11) and the contact element.

Description

Conductor terminal

The invention relates to a Leiteranschlussklennnne

with an insulating housing having a conductor insertion opening for insertion of an electrical conductor and a contact pin insertion opening for insertion of a contact pin,

with a clamping spring for clamping the electrical conductor, wherein the clamping spring has a clamping leg with a clamping edge aligned with the electrical conductor to be clamped, a spring bow and a plant leg,

wherein the conductor insertion opening opens out to the clamping edge in order to guide the electrical conductor to a clamping point formed by the clamping edge, and

- Wherein the contact pin insertion opening extends in the opposite direction to the conductor insertion opening in the interior of the insulating material inside and opens out to the plant leg to guide the contact pin for application to the plant leg, Such conductor terminals are used to screw electrical conductors with To contact the help of a spring terminal connection with a contact pin electrically conductive. For example, the contact pin can be soldered into a printed circuit board and the conductor connection terminal can be plugged onto the printed circuit board with the at least one contact pin.

DE 10 2009 035 716 B4 discloses such a conductor terminal with a U-shaped bent spring, which is supported with its plant leg on insulating. The clamping leg is directed with its free end in the direction of an optionally placeable between the electrical conductor and pin in the insulating material intermediate element. The contact pin is on the one hand on the insulating housing and on the other hand on the intermediate plate.

EP 1 022 808 B1 shows a cage tension spring with an opening in the clamping leg. A busbar piece protrudes through the leadthrough opening in the clamping leg and has a terminal contact pin at its end protruding from the insulating housing. An electrical conductor can be clamped as usual in a cage tension between a clamping edge at the free end of the clamping leg and the busbar piece. Furthermore, a further insertion opening is provided above the conductor insertion opening for the electrical conductor in the insulating housing to clamp a cross-bridge between the plant leg and the conductor rail piece on the opposite side of the electrical conductor to the conductor rail piece.

DE 39 1 1 459 A1 proposes for a cage tension spring that the lower edge of the recess formed on the clamping edge for clamping an electrical conductor is curved on both sides in the clamping leg in order to form a conductor insertion funnel and has a curved starting edge in the conductor extension direction.

Furthermore, EP 1 515 397 B1 discloses a connection device for the direct connection of conductor ends with a loop spring, which has an insertion opening in the contact leg. The plant leg rests on a conductor rail piece. From the busbar piece a contact pin is bent, which is passed through the insertion opening to clamp an electrical conductor between the contact pin and the clamping leg of the leg spring. The plant leg with the window-like recess is immovably arranged on the busbar. US 5,158,475 A shows a spring terminal with a spring steel sheet having two mirror-inverted U-shaped leg springs on its opposite sides. These torsion springs are provided to each clamp an electrical conductor between the respective clamping leg and a common abutment leg of the double spring.

A comparable spring clip is also described in DE 20 2009 01 1 828 U1.

DE 10 2010 028 790 A1 discloses a linear plug-in wire connector with a housing containing at least two wire entry openings, each facing opposite directions. In the housing, a connection arrangement is arranged, which has a bus bar arranged between the wire openings and a spring member. The spring member has two out of a spring plate bent spring arms, which are aligned with the intermediate bus bar out. The busbar is firmly connected to the spring plate. DE 35 14 099 C2 shows a cage tension, in which a rigid in itself busbar is passed through the Leiterdurchstecköffnung in the clamping leg and rests with a raised edge on the plant leg. The support is made with two lateral upstands at the rear end, between which a further electrical conductor can be guided to make contact between the support leg and the busbar.

DE 10 2010 010 260 A1 shows a connector with a busbar element and a leg spring bent in a U-shape. The plant leg of the clamping spring immersed in a contact pin receptacle of the busbar element and exerts a spring force in the direction of an opposite contact surface of the bus bar element to electrically contact a spring-loaded contact pin inserted into an associated contact pin insertion opening with the bus bar element. Proceeding from this, it is an object of the present invention to provide an improved conductor terminal, wherein the electrical contacting of an electrical conductor is improved at a contact pin as compact as possible. The object is achieved by the conductor terminal with the features of claim 1. Advantageous embodiments are described in the subclaims.

For a generic conductor connection terminal is proposed that - the plant leg has an insertion opening,

an electrically conductive contact element is arranged on the clamping spring in the insertion opening of the abutment leg between an inserted conductor and the inserted contact pin, and

the free end portion of the abutment leg forms a clamping portion for clamping the inserted contact pin between the clamping portion and the contact element.

The insertion opening is thus not present in the clamping leg, but in the plant leg of the clamping spring. This ensures that the contact element can be placed to save space in the insertion opening of the plant leg. The contact force exerted by the contact leg on an inserted electrical conductor presses the electrical conductor to the intermediate contact element. The opposite free end portion of the abutment leg also exerts a contact force on the inserted contact pin in the direction of the intermediate contact element. Both electrical conductor as well as contact pin are thus contacted directly to an intermediate contact element.

This leads in a very compact structure to a relatively short current transmission path between the electrical conductor and the contact pin on the intermediate contact element. The clamping forces of the clamping spring act on both sides via the contact pin and the electrical conductor to the contact element. In addition, the contact pin and the electrical conductor can be inserted independently. So it is possible to first set up the conductor terminal on a contact pin and contact this and then plug in the electrical conductor and clamp. The reverse variant is also conceivable, in which initially at least one electrical conductor is clamped to the conductor connection terminal and this conductor connection terminal is then plugged together with the already clamped electrical conductor on the associated at least one contact pin. The insulating material does not contribute significantly to the clamping connection and certainly does not serve as a clamping spring opposite abutment. Rather, the contact pin and the electrical conductor between the free end portion of the abutment leg and the clamping edge at the free end of the clamping leg are clamped. The Federkraftklemmanschluss is thus self-supporting and largely independent of the insulating material.

It is particularly advantageous if the clamping section is a portion of the plant leg bent away from the plane in the region of the insertion opening of the plant leg in front of the plant leg. The provided for clamping the contact pin to the contact element free end portion of the abutment leg is thus adjacent to the insertion opening.

This free end portion can be bent either in the insertion direction of the contact pin or opposite to the insertion of the contact pin be . By bending the free end portion opposite to the insertion direction of the clamping leg, the clamping force on the contact pin in the contact pin insertion direction is displaced relatively far in front of the insertion opening. In the other case, in which the free end portion is bent in the direction of the contact pin insertion direction, the contact force is further displaced upward in the contact pin insertion direction above the insertion opening displaced. The respective variant should preferably be selected adapted to the positioning of the clamping edge on the clamping leg, so that the contact forces of the abutment leg and the clamping leg are as possible directed towards each other.

It is advantageous if the contact element is fixed in position or arranged with a limited mobility in the insulating material. This ensures that the conductor insertion opening and the contact pin insertion opening in the insulating material housing are not blocked by the contact element. The abutment leg is then movable relative to the contact element in order to press the inserted contact pin against the contact element arranged in fixed position in the insulating housing. The same applies to the clamping leg, which is movable by the spring force of the clamping spring in the direction of the contact element.

It when the contact element has at least one contact projection on the electrical conductor and / or the contact pin facing contact side of the contact element is particularly advantageous. Thus, the spring force exerted on the clamped contact pin and / or electrical conductor by the clamping spring is concentrated on the contact projection, thus increasing the surface pressure. The surface pressure is the contact pressure per area. The clamping force is thus concentrated on the smallest possible area, which significantly improves the reliability of the electrical terminal connection. The contact element is, unlike a busbar used for power dissipation relatively short and is used exclusively for the transmission of electrical power from the contact pin to the electrical conductor and vice versa. Further dissipation of the current, for example, to a connection contact of the conductor connection terminal connected to the contact element is not provided. The contact element is therefore relatively short. It is preferably electrically connected exclusively to the clamping spring and in the clamped state with an electrical conductor and a contact pin. The contact element is preferably shorter than the distance between the adjoining the plant leg spring bow and the clamping portion of the plant leg. It is particularly advantageous if the contact element has a maximum extension length corresponding to the width of the clamping spring.

The contact element is preferably stationary and pivotally mounted in the insertion opening. It thus has a predetermined fixed position with respect to the conductor insertion opening and the contact pin insertion opening in the insulating housing. By the pivotable mounting of the contact element on the plant leg is achieved that the contact element conforms to an adjacent contact pin and electrical conductor when the contact pin and the electrical conductor are pressed by the clamping force of the clamping spring together. The spring forces act on the contact pin and the electrical ladder usually not directly opposite each other. Due to the pivoting of the contact element is an optimal adjustment of the position of the contact element, so that the power flow is optimized and an improved current transition is ensured. The contact element may also be mounted displaceably in the through opening in another advantageous embodiment. Upon insertion of an electrical conductor and a contact pin, the contact element is thus able to optimally align with respect to acting on the contact pin and electrical conductor spring clamping forces.

For storage of the contact element in the insertion opening, it is advantageous when the contact element has at its opposite end faces grooves for receiving at the insertion opening limiting side webs of the contact leg of the clamping spring. The contact element is thus not simply plugged into the insertion opening, but stored with the aid of the grooves on the side webs of the insertion opening. Thus, it can not slip in a direction transverse to the plane of the plane defined by the insertion opening plane. Rather, the contact element is fixed in position by the grooves in this direction. It is thus simply hung by means of the grooves in the insertion opening.

The conductor connection terminal can be single-pole. It is also conceivable that the conductor terminal is multi-pole and has one of the number of poles corresponding number of clamping springs with associated conductor insertion opening and contact pin insertion opening. Thus, in the foregoing description and in the claims, an indefinite article is not to be construed as a number word.

The invention will be explained in more detail with reference to embodiments with the accompanying drawings. Show it:

Figure 1 - side view of a conductor terminal without Isolierstoff- housing in Vorsteckzustand;

Figure 2 - side view of the conductor terminal of Figure 1 with inserted electrical conductor and pin;

Figure 3 - side sectional view of a second embodiment of a conductor terminal with inserted contact pin;

Figure 4 - top view of the conductor terminal of Figure 3 with the slightly in alignment with the conductor insertion opening projecting contact element;

Figure 5 - side view of a third embodiment of a conductor terminal without Isolierstoffgehäuse with slidably mounted in the insertion opening of the plant leg

Contact element;

Figure 6 - side view of a fourth embodiment of a conductor terminal without Isolierstoffgehäuse with pivotally mounted in the insertion opening of the contact limb contact element;

Figure 7 - a sectional view in plan view of a section of the

Abutment leg in the area of the insertion opening with contact elements suspended in grooves of the abutment leg;

Figure 8 - cross-sectional view of another embodiment with the projecting into grooves of the contact element bearing limb in the region of the insertion opening;

FIG. 9 shows a cross-sectional view of a further embodiment of a contact element pivotally mounted on the abutment leg; FIG. 10 shows a side sectional view of a lever-operated conductor connection terminal with inserted electrical conductor and contact pin;

Figure 1 1 - perspective sectional view of the conductor terminal of Figure 10;

FIG. 12 shows a perspective view of a clamping insert formed from a clamping spring and a contact element for the conductor connecting terminal from FIGS. 10 and 11;

FIG. 13 shows a perspective rear view of the clamping insert

FIG. 12;

Figure 14 - side sectional view of the contact insert of Figure 12 and

13 with operating lever;

Figure 15 - perspective view of the contact insert with actuating lever of Figure 14;

FIG. 16 is a front perspective view of the contact insert of FIG. 15 with the contact pin inserted;

FIG. 17 shows a perspective view of a pin strip housing with built-in contact pins;

FIG. 18 is a perspective view of the pin strip housing from FIG. 17 with attached conductor terminal;

Figure 19 - perspective view of the pin header housing with inserted and latched conductor terminal;

FIG. 20 shows a perspective rear side view of the arrangement of pin strip housing and inserted conductor connection terminal from FIG. 19;

Figure 21 - perspective back view of the conductor terminal with operating lever of Figure 1 1 with inserted pins.

FIG. 1 shows a side view of a first embodiment of a conductor terminal without an insulating material housing. In this case, the Federkraftklennnnanschluss formed of a clamping spring 2 and a contact element 3 for the connection of an electrical conductor 4 from one side (from above) and a contact pin 5 from the opposite side (from below). The electrical conductor 4 with its stripped end and the contact pins 5 are in the Vorsteckzustand and not yet clamped to the Federkraftklemmanschluss.

The clamping spring 2 has a clamping leg 6, which has a clamping edge 7 for clamping the stripped end of the electrical conductor 4 at its free end. A "free end" is understood to mean the end region at which the clamping spring 2 terminates or ends.

The clamping leg 6 merges into a spring bow 8, to which a plant leg 9 connects. The plant leg 9 is bent again in the illustrated embodiment and extends in the direction clamping jaw! 6. In the bent portion of an insertion opening 10 is present over the length sketched by cross lines. The clamping leg 6 dives with its free end portion in the insertion opening 10 at least in the deflected state and can, as shown, protrude from the insertion opening 10 at the opposite side of the spring bow 8.

The free end of the abutment leg 9, which is opposite to the clamping leg 6, is bent adjacent to the insertion opening 10 relative to the plane defined by the insertion opening 10 plane to form a clamped portion 1 1 with the bent free end.

It can be seen that the contact element 3 is arranged in the push-through opening 10 and protrudes from the push-through opening 10 on both sides. In the illustrated embodiment, the contact element is supported with a bent support portion 12 on the clamping portion 1 1 of the abutment leg 9. The contact element 3 is doing by the clamping force of the clamping spring 2 with the Clamping edge 7 of the clamping leg 6 pressed against the Klennnnabschnitt 1 1 of the plant leg 9. The spring-loaded terminal contact is thus self-supporting.

It can also be seen that in the lower region of the clamping element 3, a guide section 13 is bent obliquely out of the plane of the clamping element 3 in the opposite direction to the support section 12. This creates a funnel-shaped guide for inserting a contact pin 5 to be clamped between contact element 3 and clamping section 11 of the contact leg 9 of the clamping spring 2.

In the upper region, the clamping element 3 is tapered in order to project through the insertion opening 10 with the tapered end section 14. The contact element 3 then rests with its adjoining, again widened section on the side webs of the support leg 9 delimiting the through opening 10.

FIG. 2 shows a side view of the conductor connection terminal 1 from FIG. 1 in the plug-in state. In this case, both the electrical conductor 4 with its stripped end, and the contact pin 5 are inserted in their respective clamping position in the Federkraftklennnnanschluss. It is clear that the stripped end of the electrical conductor 4 is pressed with the clamping leg 6 against the contact element 3. In this case, the clamping edge 7 is located at the free end of the contact leg 6 at the stripped end of the electrical conductor 4 and exerts a spring force in the direction of the contact element 3. The electrical conductor is thereby pressed against a contact edge on the guide section 13 and adjacent to the insertion opening 10 to a further contact edge 15 generated by bending the contact element 3. The resulting essentially from the spring bow 8 clamping force of the clamping leg 6 of the clamping spring 2 is thus concentrated on these defined contact points. On the opposite side of the electrical conductor 4 of the contact element 3, the contact pin 5 is inserted in the opposite direction and placed between the clamping edge 1 1 and the contact element 13. The clamping portion 1 1 of the abutment leg 9 has at its free end a Umbie- supply 16, on the one hand an insertion funnel for the contact pin 5 and on the other hand creates a defined and reduced contact surface, with the clamping portion 1 1, the spring force of the abutment leg 9 on the Contact pin 5 transfers. By inserting the contact pin 5 between the clamping portion 1 1 and contact element 3, the contact element 3 is relatively from the clamping section 1 1 in the direction of clamping leg 6 shifts by the plant leg 9 undergoes a deflection. Thus, both the stripped end of the electrical conductor 4, and the contact pin 5 are pressed by the oppositely acting spring forces of the clamping leg 6 and the clamping portion 1 1 of the clamping spring 2 against the contact element 3. An electric current is transmitted between contact pin 5 and electrical conductor 4 by the shortest route through the contact element 3. This construction means that the contact resistance is kept extremely low.

FIG. 3 shows a second embodiment of a conductor connection terminal 1 in an insulating material housing 17. Here too, a clamping spring 2 is again received in the insulating material 17 in the manner of a loop spring. The insulating housing 17 has a conductor insertion opening 18 in the upper region, which opens at the clamping point formed by the free end of the clamping leg 6 and the contact element 3 for clamping an electrical conductor 4 out. Adjacent to the conductor insertion opening 18, an actuating push-button 19 is slidably mounted in the insulating material 17 in the illustrated embodiment. The actuating lever 19 abuts against the clamping leg 6, in order to shift the clamping leg 6 in the direction of plant leg 9 to open the nip for clamping or removal of an electrical conductor see 4. The insulating housing 17 is constructed in two parts from an upper part 20 and a lower part 21. The lower part 21 has latching noses 22, which dive into latching openings 23 of the upper part 20 in order to lock the lower part 21 to the upper part 20. For assembly, the spring force clamping connection formed by the clamping spring 2 and the contact element 3, as well as the actuating pushbutton 19, are first inserted into the upper part 20. Subsequently, the upper part 20 is closed with the lower part 21, which then locked to the upper part 20.

It can be seen that also in this embodiment, the contact element 3 is again passed through an insertion opening 10 in the plant leg of the clamping spring 2 and is mounted on the plant leg 9. The contact element 3 can be stored stationary in the insulating material 17. However, it should be relative to the clamping spring 2, in particular in the direction of extension of the insertion opening 10 and the abutment leg 9 in the region of the insertion opening 10 slidably or pivotally mounted on the plant leg 9.

It is clear that the contact pin 5, which is inserted from below into a contact pin insertion opening 24 of the insulating housing 17, rests against the contact element 3. The contact pin 5 is thereby pressed against the contact element 3 with the clamping portion 11 of the bent-over free end of the abutment leg 9. The bent in the insertion of the contact pin 5 clamping portion 1 1 has an opposite direction to the insertion of the contact pin 5 bent portion 25, with which the clamping spring 2 is mounted in the insulating material 17. This portion 25 is bent away from the male contact pin 5 and the contact pin insertion opening 24 in the direction of the outer wall of the insulating housing 17 so as to form a funnel-shaped guide wall for the contact pin 5.

Furthermore, on the side opposite the clamping section 1 1 side of the Anlageabschnitts 9 below the spring bow 8, a retaining tabs 26 of the contact portion 9 down in the direction of the lower part 21 of the insulating material 17th bent. This retaining tabs 26 dips into an associated retaining bay 27 of the lower part 21 in order to ensure a certain positional fixation of the clamping spring 2 in the insulating housing 17. It can be seen further that the contact element 3 on the clamping leg 6 side facing a protrusion 28 which forms a contact edge for clamping an inserted into the conductor insertion opening 18 electrical conductor. FIG. 4 shows a plan view of the conductor connection terminal 1 from FIG. It is clear that the conductor insertion opening 18 opens into the contact space to the clamping point, the ment by the clamping leg 6 and arranged at the free end portion clamping edge 7 and with part of its width in the alignment of the conductor insertion opening 18 Kontaktele- is formed. The contact element 3 thus protrudes slightly beyond the wall of the insulating housing 17, which limits the conductor insertion opening 18.

It can also be seen that the actuating handle 1 9 has a U-shaped geboge- nen section with two opposite side webs 29, which form part of the wall of the conductor insertion opening 18 and contribute to the leadership of an electrical conductor 4 with. The actuating lever 19 rests with a transverse web on the clamping leg 6 in order to displace the clamping leg 6 when depressing the actuating element 19 in the direction of the plant leg 9 for opening the nip.

Figure 5 can be a side view of a third embodiment of a conductor terminal 1 now recognize again without Isolierstoffgehäuse with plugged and clamped pin 5. Again, the free end portion of the abutment leg 9 in the insertion direction (extension direction) of the contact Pin bent to form a clamping portion 1 1. This clamping portion 1 1 is aligned with its free end to the contact pin 5 and the plugged into an insertion opening 10 in the plant leg 9 contact element 3, so that the contact pin 5 contacted with a clamping edge at the end of the Klemmab- section 1 1 and pressed against the contact element 3 becomes.

At the free end portion of the abutment leg 9 in the opposite direction of the clamping portion 1 1, in turn, a portion 25 is bent out, which is exposed to the formation of the through opening 10 from the sheet material of the abutment Schenk 9 (for example, punched or cut free). This section 25 extends obliquely away from the plug-in direction of the contact pin 5 and serves to fix the clamping spring 2 in the insulating material and to form an insertion funnel for the contact pin. The clamping leg 6 of the clamping spring 2 in turn dips with its free end portion at least in the deflected plug state in the insertion opening 10 and is provided and aligned to clamp an inserted between clamping leg 6 and contact element 3 electrical conductor 4 to the contact element 3.

The contact element 3 is, as indicated by the dashed lines, mounted in the insertion opening 10 relatively displaceable thereto. In this case, a fixed mounting of the contact element 3 is preferably provided in the insulating housing.

FIG. 6 shows another embodiment of the conductor connection terminal 1, in which again the relatively short contact element 3 is arranged in the insertion opening 10 of the support leg 9. The contact element 3 is in this case stationary with bearing pin 30, but pivotally mounted on the plant leg 9. Thus, the position of the contact element 3 at angeklemmtem contact pin 5 and electrical conductor (not shown) to the clamping position and adjust the spring force effect. The swivel angle α for the contact element is preferably in the range of up to 10 degrees and particularly preferably up to 5 degrees. It is also clear that the contact element 3 both at the intended for clamping an electrical conductor, as well as at the intended for clamping a contact pin 5 side bulges 31, which form a defined reduced contact surface on which the clamping force of the clamping spring 2 is concentrated. This improves the surface pressure and reduces the contact resistance.

In the illustrated embodiment, the bent from the plane of the insertion opening 10 clamping portion 1 1 at the free end of the abutment leg 9 now opposite to the insertion direction of the contact pin 5 is bent. In turn, as in the first exemplary embodiment, there is a bend 16 so that the clamping section 1 1 ends with a section 32 projecting obliquely out of the contact pin insertion opening. This section 32 thus forms, as in the first embodiment, a funnel-shaped guide surface for the male contact pin 5.

FIG. 7 shows a detail view of a spring-force clamping connection in the region of the through opening 10 of the contact leg 9 of the clamping spring. This insertion opening 10 is bounded by two opposing side webs 33a, 33b of the clamping spring. These side bars have at their side facing the insertion opening 10 side grooves 34, in which the contact element 3 is hooked with its free ends. The free ends have a reduced width adapted to the grooves 34 in comparison to the width of the contact element 3 in the adjoining central main area. The contact element 3 is fixed in this way in the extension direction of the insertion opening 10 and the support leg 9, but nevertheless at least tiltably mounted on the plant leg 9.

Figure 8 shows a reverse variant in a cross-sectional view of the clamping element 3 in the region of the insertion opening. Again, the through-opening is limited by side webs 33a, 33b of the contact leg 9 of the clamping spring. In this embodiment, the contact element 3 on the opposite sides of grooves 35, in which the associated side webs 33a, 33b dip. In this way, the contact element 3 is mounted in the longitudinal extension direction of the abutment leg 9 or the insertion opening 10 delimited by the side webs 33a, 33b so as to be movable on the abutment leg 9. The contact element 3 is arranged in the insertion opening.

FIG. 9 shows a further embodiment of the mounting of the contact element 3, as was used in the exemplary embodiment according to FIG. In this case, the contact element 3 is arranged in the insertion opening 10 of the abutment leg 9 and pivotally mounted with bearing pin 30 on the plant leg 9.

The variants of the mounting of the contact element 3 on the bearing limb 9 illustrated in FIGS. 7 to 9 can in principle be used for all of the previously described embodiments of the clamping springs 2 and contact elements 3.

FIG. 10 shows a side sectional view of a conductor connection terminal 1 in which an actuating lever 36 is pivotally mounted in the insulating material housing 17 for each clamping spring 2. The insulating housing has on its front side a conductor insertion opening 18 and on the opposite rear side a contact pin insertion opening 24, which lead into a common connection space in the insulating housing 17. In this connection space of the contact spring formed from the clamping spring 2 and the contact element is added. It is clear that the contact element 3 in an insertion opening 10th of the contact leg 9 is inserted through which the stripped end of the electrical conductor 4 is inserted from one side and the contact pin 5 from the opposite side. The contact element 3 is then between the stripped end of the electrical conductor 4 and the contact pin. 5

The contact pin 5 is located on the obliquely to the contact element 3 indicative clamping portion 1 1 of the plant leg 9 at. This clamping portion 1 1 is resilient and exerts a clamping force on the contact pin 5, which is directed to the opposite contact element 3 out. The free end of the Anlageschenkeis 9 is bent away from the contact element 3, so as to provide a clamping portion 1 1 with a reduced contact surface and to allow withdrawal of the contact pin 5.

The actuating lever 36 has a part-circular actuating section 37 lying laterally next to the clamping leg 6. When the actuating lever 36 pivots up, the actuating section 37 rotates so that a driver surface 38 comes into contact with the clamping leg 6 or a material tab protruding laterally from the clamping leg and the clamping leg of FIG the contact element 3 away in the direction of the adjoining the spring bow 8 opposite part of the contact section 9 moves. In this way, the clamping point formed between the clamping edge 7 of the clamping spring 2 and the contact element 3 for clamping an electrical conductor 4 is then opened. It is clear that the spring bow 8 adjacent to the conductor insertion opening 18 and the insertion opening 10 of the abutment portion 9 adjacent to the contact pin insertion opening 24 is arranged.

It is also clear that the conductor insertion opening 18 and the contact pin insertion opening 24 are parallel and offset from each other, wherein the contact element 3 between the escape of the conductor insertion opening 18 and the Escape of the contact pin insertion opening 24 is located.

FIG. 11 shows a perspective sectional view of the conductor connection terminal 1 from FIG. 10. It is clear that the conductor connection terminal 1 has a plurality of clamping points arranged next to one another for respectively clamping a pair of electrical conductor 4 and contact pin 5. Accordingly, a plurality of actuating levers 36 are pivotally mounted side by side in the insulating housing 17. The lever arms of the actuating lever 36 may be separated from each other by intermediate webs 39. The free ends of the actuating levers 36 are arranged adjacent to the conductor insertion openings 18.

It is clear that the stripped end of the electrical conductor 4 and the contact pin 5 abut against protrusions 31 (projecting contact edges) of the contact element 3, so that the clamping force is concentrated on these protrusions 31. It can also be seen that the clamping leg 6 is guided laterally next to the actuating portion 37 of the actuating lever 36, wherein the actuating portion 37 connects to the boundary wall of the conductor insertion opening 18. In order for a lateral guidance of the electrical conductor 4 is ensured by the actuating portion 37 of the actuating lever 36.

It can also be seen that the abutment leg 9, starting from the spring bow 8, is bent over in a box shape such that a first section extends in the conductor insertion direction adjacent to the lever arm of the actuating lever 36, then transversely to the conductor insertion direction or the extension direction of the conductor insertion opening 18 and the contact pin Insertion opening 24 extends and is then bent with the free end portion to form there the clamping portion 1 1 for the contact pin 5. In the transversely to the Leiterereinsteck- and contact pin insertion direction extending portion of the insertion opening 10 is introduced. The width of the insertion opening 10 is wider in the alignment of the conductor insertion opening 18, as in the lower area in the alignment of the contact pin insertion opening 24. Thus, a support for the contact element. 3 created and ensured that the contact pin insertion opening 24 remains free even without inserted contact pin 5. The contact element 3 is adjacent to the conductor insertion opening 18 on an inclined surface 40 of the insulating material and is slightly obliquely downward in the direction of escape of the contact pin insertion opening 24 and bent away from the spring bow 8. Thus, the contact element 3 is held in its position at least so far that at unoccupied conductor terminal 1, the contact pin insertion opening 24 remains free and an electrical conductor 4 can be introduced by using the contact element 3 as a guide surface to the nip.

FIG. 12 shows a perspective view of the clamping insert formed from the clamping spring 2 and the contact element 3. It is clear that the contact element 3 is inserted into the passage opening 10 of the clamping spring 2. For this purpose, the contact element 3 has a projecting tongue 41 with a reduced width compared to the contact region of the contact element 3. It can also be seen that this tongue 41 has notches or grooves 42 on the opposite narrow sides into which the side webs 43 of the abutment leg 9, which delimit the through-opening 10, are immersed. As a result, the contact element 3 is fixed in position relative to its longitudinal direction in its position on the clamping spring 2. It can also be seen that the width of the through opening 10 is gradually reduced to the clamping portion 1 1, so that the width of the through opening 10 above the clamping element 3 is greater than in the area below the clamping element 3 on the side facing the clamping portion 1 1. The clamping element 3 can thus rest on the stepped width of the through-hole 10 forming paragraph.

FIG. 13 shows a perspective rear view of the clamping insert from FIG. 12. It is again clear that the clamping element 3 is inserted with its tongue 41 in the insertion opening 10 and thereby superimposed on a shoulder of the insertion opening on the side webs 43. FIG. 14 shows a side sectional view of the clamping insert from FIGS. 12 and 13 with actuating lever 36. It is clear that the actuating portion 37 of the actuating lever 36 is part-circular and is positioned laterally adjacent to the clamping leg 6. By a pie-like cutout in the actuating portion 37, an actuating surface 38 is provided, which engages with the clamping leg 6 or protruding from the clamping leg 6 material tabs to move it against the spring force of the clamping element 3 away. The actuating portion 37 can rest with its part-circular end face on the contact element 3, so as to absorb the actuation force in the contact insert (self-supporting) and to transmit as few forces as possible to the insulating material housing 17.

It can also be seen that the clamping leg 6 is bent downward in the direction of the contact element 3 after a first section adjoining the spring bow 8 and the free end of the clamping leg 6 carrying the clamping edge 7 is bent back somewhat in the direction of the through opening 10 is.

It is also clear that the protrusions 31 on the contact element 3 are provided by groove-like projections with adjoining and / or intermediate depressions, which are e.g. are produced by a forming process, are formed.

FIG. 15 shows a perspective rear view of the contact insert from FIG. 14. It is clear that the clamping spring with its spring bow 8 and the adjoining abutment leg 9 and in particular of the clamping leg 6 is bounded on both sides by side walls 44 of the actuating lever 36. These side walls 44 are tapered towards the free end and connected to each other by a cover plate 45. This cover plate 45 forms the lever arm of the actuating lever 36, by the clamping point in the direction conically widening side walls 44 is stabilized. The inner space of the actuating lever 36 thus formed is used to receive the clamping spring 2 and to guide the electrical conductor. On both sides of the clamping leg 6 is in each case a part-circular actuating portion 37 which is auflagert on the contact element 3.

FIG. 16 shows a perspective front view of the contact insert from FIG. 15. It is clear that the spring bow 8 of the clamping spring is arranged below the cover plate 15 of the actuating lever 36. The actuating lever 36 thus surrounds the clamping spring 2 at least partially and is arranged adjacent to the side edges of the clamping spring 2.

FIG. 17 shows a perspective view of a pin strip housing 46, which is formed from an insulating material housing with contact pins 5 installed therein. The pin strip housing 46 has a bottom plate 47, from each of which a side wall 48 protrudes on the opposite sides. The front and top of the pin header housing is largely open, with the contact pins 5 protrude into this space. On the front side of the bottom plate 47, latching tabs 49 protrude upwards, which, for example, are curved in a U-shape.

On the opposite side of the bottom plate 47, the side walls 48 are connected by a ceiling web 50 together. At the back of the pin header housing is connected by a base plate 51. The contact pins 5 are passed through the base plate 51 and fixed in the base plate 51.

FIG. 18 shows a perspective view of the pin strip housing 46 with the conductor terminal 1 attached thereto. The conductor connection terminal 1 is then pushed onto the contact pins 5 and inserted into the pin strip housing 46 and guided laterally through the side walls 48. It can be seen that one of the several actuating levers 36 is folded up so as to open the clamping point of the clamping insert assigned in the interior. The actuating lever 36 are on the side facing away from the bottom plate 47. FIG. 19 shows a perspective view of the arrangement of pin strip housing 46 with now fully inserted conductor terminal 1. The latching tabs 49 on the front side of the pin strip housing 46 are sprung back so that they rest against the front side of the conductor connection terminal 1 and form a stop. Thus, the conductor terminal 1 can not be easily pulled out of the pin header housing 46. The snap-in tabs 49 are arranged on a web 52 of the bottom plate 47 which is partially exposed by cuts 52. A removal of the conductor terminal 1 requires a bending away of this web 53 so that the locking tabs 49 release the adjacent conductor terminal 1. For this purpose, for example, a screwdriver can be introduced into the intermediate space between the conductor connection terminal 1 and the web 53 in order to move the web 53 and the latching tabs 49 and lift out the conductor connection terminal 1.

FIG. 20 shows a perspective rear view of the arrangement from FIG. 19. It is clear that the contact pins 5 are received gap-free in the base plate 51.

It can also be seen that the open actuating levers 36 adjoin the connecting web 50 in the plug-in state such that the actuating levers 36 can be swung completely upwards as shown in an example.

FIG. 21 shows a perspective rear view of the conductor connection terminal 1 with inserted contact pins 5. It is clear that between the contact pins 5 and the insulating material 17 in the region of the contact pin insertion opening 24 each still a gap space is present. This agreement Clock pins 5 are thus not fixed to the insulating housing 17 of the conductor terminal 1. Such a fixation of the contact pins 5 is provided only for the pin strip housing 46 (see FIG.

Claims

claims:

1 . Conductor connection terminal (1)

with an insulating housing (17) having a conductor insertion opening (18) for introducing an electrical conductor (4) and a contact pin insertion opening (24) for inserting a contact pin (5),

- with a clamping spring (2) for clamping the electrical conductor (4), wherein the clamping spring (2) has a clamping leg (6) with a clamped to the electrical conductor (4) aligned clamping edge (7), a spring bow (8) and a plant leg (9),

- Wherein the conductor insertion opening (18) to the clamping edge (7) opens out to lead the electrical conductor (4) to a clamping edge formed by the clamping point (7), and

- Wherein the contact pin insertion opening (24) in the opposite direction to the conductor insertion opening (18) in the interior of the insulating housing (17) extends into and to the plant leg (9) out to the contact pin (5) for application to the To guide the plant leg (9)

characterized in that

- The plant leg (9) has an insertion opening (10),

- A contact element (3) on the clamping spring (2) in the insertion opening

(10) of the abutment leg (9) between the inserted electrical conductor (4) and the inserted contact pin (5) is arranged,

- The free end portion of the abutment leg (9) has a clamping portion

(1 1) for clamping the inserted contact pin (5) between the clamping portion (1 1) and the contact element (3).

Leiteranschlussklennnne (1) according to claim 1, characterized in that the clamping portion (1 1) is bent away from the in the region of the insertion opening (10) of the plant leg (9) plane spanned portion of the abutment leg (9).

Conductor terminal (1) according to claim 1 or 2, characterized in that the free end portion of the abutment leg (9) in the insertion direction of the contact pin (5) or opposite to the insertion direction of the contact pin (5) is bent.

Conductor terminal (1) according to one of claims 1 to 3, characterized in that the contact element (3) is fixed in position or with a limited mobility in the insulating housing (17), and that the abutment leg (9) relative to the contact element (3) is mobile.

Conductor terminal (1) according to one of the preceding claims, characterized in that the contact element (3) at least one contact projection (15, 28, 31) on the electrical conductor (4) and / or the contact pin (5) facing the contact side of the contact element ( 3) has.

Conductor terminal (1) according to one of the preceding claims, characterized in that the contact element (3) is electrically connected exclusively to the clamping spring (2) and in the clamped state with an electrical conductor (4) and a contact pin (5).

7. conductor terminal (1) according to any one of the preceding claims, characterized in that the contact element (3) relative to the abutment leg (9) fixed and pivotally mounted in the insertion opening (10).

8. conductor terminal (1) according to one of claims 1 to 6, characterized in that the contact element (3) is displaceably mounted in the insertion opening (10).

9. conductor terminal (1) according to one of the preceding claims, characterized in that the contact element (3) at its opposite end faces grooves (35) for receiving the through opening (10) limiting side webs (33a, 33b) of the abutment limb (9) the clamping spring (2) has.

10. conductor terminal (1) according to one of the preceding claims, characterized in that the conductor terminal (1) is multi-pole and one of the number of poles corresponding number of clamping spring (2) with associated conductor insertion opening (18) and contact pin insertion opening (24 ) Has.

1 1. Conductor terminal (1) according to any one of the preceding claims, characterized in that at least one actuating lever (36) is pivotally mounted in the insulating material housing (17) for applying force to an associated clamping leg (6).

Arrangement of conductor terminal (1) according to one of the preceding claims and pin strip housing (46), characterized in that the contact pins (5) in the pin strip housing (46) are installed and the pin strip housing (46) for receiving the conductor terminal (1) is formed.