DE102006037050A1 - Electrical contact terminal - Google Patents

Abstract

The invention relates to an electrical contact terminal, wherein the contacting takes place by inserting the conductor into the contact terminal along a plug-in direction (3). The terminal has a housing and a spring element (5) with a clamping leg (9) and a holding leg (8), wherein a clamping point (6) for the conductor between a clamping edge (13) of the clamping leg (9) on the one hand and a contact pad (10 ) is formed on the other hand. The clamping leg (9) is connected to the holding leg (8) in a connecting region (17) pivotally relative to each other. The housing has a support element for the spring element (5), which is designed as a pivot bearing for the spring element (5), wherein it supports the clamping leg (9) in the connecting region (17) during pivoting. With the clamp, an easy insertion of the conductor and a secure connection can be realized.

Description

The The invention relates to an electrical contact terminal for contacting an electrical conductor, in which the contacting by a Inserting the conductor into the contact terminal along a plug-in direction he follows. Furthermore, the invention relates to an electrical contact clamping element, which can be provided in such a contact terminal. With "contact clamp" is below denotes the component unit of the electrical contact terminal be as elementary unit for the production of mechanical and electrical connection with the conductor, so for example a "contact insert" Contact terminal is simply referred to as a terminal in the following.

at the contact terminal may be, for example, a plug-in terminal, around a feed-through terminal, to a combined plug-in solder terminal or to act a combined male ID terminal. Farther the clamp can be detachable be designed.

Numerous such terminals and contact clamping elements are known from the prior art. For example, is from the DE 196 54 611 B4 a contact insert for a terminal with a U-shaped leaf spring known in which one of the two spring legs is used to hold the leaf spring and the other is designed as a clamping leg.

From the DE 196 54 523 C2 a connection clamp with a leaf spring is known, wherein the leaf spring is punched free in the manner of a tongue from a piece of spring steel sheet and is used with its free edge for clamping a conductor.

From the DE 199 49 387 A1 Also, a clamp is known which has a substantially U-shaped leaf spring with a clamping leg. In contrast to the above-mentioned terminals, this terminal is detachable.

in the Generally, such terminals are desired to be the connection between the conductor and the terminal intended for contacting is, if possible easy to manufacture; therefor it is advantageous if the resistance, the insertion of the Ladder occurs, if possible is low. Furthermore should the connection as possible be sure; contributes to this one possible greater Resistance to unintentional pulling out of the conductor - so a possible large "trigger resistance" - at.

Of the present invention is the object of a clamp or specify a contact clamping element of the type specified, the or the advantageous properties, in particular with respect to a secure connection and ease of manufacture of the same having.

These Task is according to the invention with those in the independent ones claims mentioned objects solved. The dependent ones Give claims advantageous developments.

According to the invention is an electrical contact terminal for contacting an electrical conductor provided at the contacting by plugging in the conductor in the contact terminal along a plug-in direction takes place. The clamp has a housing, for example an insulating housing and a spring element, preferably a one-piece spring element. The Spring element has a clamping leg and a holding leg. Between a clamping edge of the clamping leg on the one hand and a contact pad On the other hand, a terminal point is formed for the conductor. Of the Clamping leg is doing with the holding leg in a connection area connected pivotally relative to each other. The housing faces a support element for the spring element on. According to the invention is the support element as a pivot bearing for formed the spring element, wherein it is the clamping leg in the connecting region supported when panning.

Thereby, that the support element the clamping leg in the connection area when pivoting in the sense a pivot bearing, will for the Swiveling a kind of tilting or rocking movement of the clamping leg allows. This can be done the clamping leg - at given insertion resistance - in to be particularly stiff. A particularly stiff clamping leg allows a particularly high trigger resistance and thus makes the connection especially safe.

Of the Insertion resistance decreases with increasing flexibility of the connection area from. The pivot bearing according to the invention allows with warranty a total guided Movement to make the connection area particularly flexible, For example, by using very little material for the spring element in this Area is provided. Therefore, according to the invention, the insertion resistance in a simple way and in particular independent of the rigidity of the Clamping leg on a desired Minimum be reduced. In other words, so offers the invention the possibility, The relationship between (low) insertion resistance and (large) trigger resistance practically to design arbitrarily.

In contrast, a clamping leg of a U-shaped leaf spring according to the prior art, for example according to the DE 196 54 611 B4 , so flexible that he is in plugging the conductor in is bent more or less. This is implied by the U-shape of the inherently homogeneous leaf spring. The movement of the clamping leg when inserting a conductor is not supported. If you want - starting from this situation - lower the insertion resistance, the clamping leg must be made even more flexible, which is at the expense of rigidity and thus the safety of the clamping. The same applies in another direction: If one wishes to increase the safety of the clamping by increasing the rigidity of the clamping leg, this inevitably leads to an undesirable increase in the insertion resistance. In the design of the clamping leg according to this prior art, therefore, the sizes "insertion resistance" and "pull-off resistance" can be selected only in mutual dependence of each other.

If the clamping leg is formed according to the prior art as a single-legged element, for example according to DE 196 54 523 C2 , the above considerations apply analogously.

Advantageous supports the support element the spring element as well against a withdrawal force, ie against a force, in a train on the inserted conductor against the insertion direction (without discharge the clamping point) occurs. This allows for easy and material-saving Way the resistance in the deduction continues to increase.

Advantageous the spring element has at least one section, for example in the form of another leg, on, with respect to the holding leg - beyond the connecting portion is provided, wherein a further support for the spring element is provided, which supports the section against a withdrawal force. Of the Section can directly adjoin the holding leg and the latter be angled. The bend can be greater than 90 °, so that the included Angle in particular between 0 ° and 90 °, for example about 70 ° can. The further support For example, it may be formed as part of the housing or as part of an electrically conductive contact part, which serves to conduct current and on which also the contact pad can be provided. By the section and the further support is enabled the resistance to a trigger of the head (for a given stability of the spring element) continues to increase.

Preferably is the section - at view in the insertion direction on the clamping point - arranged in front of the clamping point is and is running doing so at an acute angle to the nip. This can be done make the clamp so that even when inserting the head of the Section against the further support depressed is, so that a lifting of the spring element of the further support in Plugging in is avoided; such a lift would become one lead to unwanted increase of the insertion resistance.

Advantageous the clamping leg has a connecting area cross-over longitudinal section along his Main extension, which is essentially not when pivoting bent or bent. The inherent rigidity of the clamping leg in the longitudinal section so it can be chosen so big that the pivoting no or no significant bending of the Clamping leg in the longitudinal area causes. This can easily overcome the resistance the trigger of the leader further increased become. The clamping leg is particularly advantageous in the longitudinal area additionally stiffened, for example by a profiling.

Farther Advantageously, the clamping leg with respect to the connection region on the other side of the nip a free extension, wherein at a Force on the free extension relieved the nip can be. This can be the terminal in a comparatively simple and space-saving way as releasable Make terminal block. It is advantageous if the release path of the free extension covered in the force to relieve the clamping point is limited by a stop. This is how the clamp for a define certain conductor cross-section area.

Becomes an additional stiffened longitudinal region of the Clamping leg in conjunction with a free extension provided the clamping leg, which is at a relief of the Clamp on the free extension transfer effective force particularly effectively to the opposite region of the clamping leg, whereby the efficiency in the discharge is increased.

Advantageous is for the clamping leg in an area laterally of the clamping edge a lateral guidance provided during pivoting, so that the clamping leg in the case a force against the insertion direction not to the side can dodge. This increases the security of the connection continues.

According to a second aspect of the invention, an electrical contact clamping element for contacting an electrical conductor is provided, wherein the contacting takes place by inserting the conductor into the contact clamping element along a plug-in direction. The contact element in this case has a spring element with a clamping leg and a holding leg, wherein a clamping point for the conductor between a clamping edge of the clamping leg on the one hand and a contact pad ande on the other hand is formed. The clamping leg is pivotally connected to the holding leg in a connecting region relative to each other. According to the invention, the clamping leg with respect to the connection region on the other side of the nip on a free extension, with a force acting on the free extension, the nip can be relieved.

Thereby let yourself make the contact clamping securely and thereby releasable.

Advantageous the clamping leg has one, the connecting area cross-over, longitudinal section along his Main extension, which is essentially not when pivoting bent or bent. Particularly advantageous is the clamping leg while in the longitudinal area additionally stiffened, for example by a profiling.

According to one Third aspect of the invention is an electrical contact clamping element provided for contacting an electrical conductor, in which the contact by inserting the conductor in the contact clamping element along one Inserted direction takes place. The contact clamping element has a Spring element with a clamping leg, wherein a clamping point for the Head between a clamping edge of the clamping leg on the one hand and a contact pad is formed on the other. According to the invention while the spring element at least three legs, wherein a the three legs forming the clamping leg and the other two Leg thighs of a U-shaped section form the spring element. The conductor is doing while plugging along the Insertion direction through recesses in the two legs of the U-shaped section stuck through it.

According to one Fourth aspect of the invention is an electrical contact clamping element provided for contacting an electrical conductor, in which the contact by inserting the conductor in the contact clamping element along one Inserted direction takes place. The contact clamping element has a preferably electrically conductive contact part and a spring element with a clamping leg on, with a nip for the conductor between a clamping edge of the clamping leg on the one hand and a contact pad the contact part is formed on the other hand. According to the invention is the Spring element at height the clamping point seen in the insertion direction before the contact part arranged that when inserting the conductor at the level of the nip is pressed in the insertion direction against the contact part.

Finally is an electrical terminal is provided which comprises an electrical contact clamping element having the above features and a housing Insulating material.

The Invention will be described below with reference to an embodiment and with reference closer to the drawings explained. Show it

1 a cross section through a clamp according to the invention,

2 a cross section like 1 , but with plugged in conductor,

3 a perspective view of a clamp with partially open housing,

4 and 5 perspective views of a contact clamping element according to the invention,

6 a cross section through a contact clamping element with indicated pivoted position of the clamping leg,

7 to 9 further views of a contact clamping element,

10 a cross-sectional view of a clamp according to the invention with release tool,

11 a 3 corresponding, perspective view, but with release tool, and

12 a frontal view of a clamp according to the invention.

1 and 2 show an embodiment of an inventive electrical contact terminal or short "terminal" 20 in cross section. the clamp 20 serves for contacting an electrical conductor 2 , To make the contact, the conductor 2 along a plug-in direction 3 in the terminal 20 inserted or inserted. In 2 is the clamp 20 with plugged in conductor 2 shown.

the clamp 20 has a housing 15 made of insulating material, such as plastic, in which an insertion 21 is provided by which the conductor 2 is passed during the insertion movement.

In the case 15 is a contact clamping element 1 is used, the clamping of the conductor 2 and used to conduct electricity. The contact clamping element 1 is separate - without housing 15 - in the 4 to 9 shown in different illustrations.

The contact clamping element 1 includes a spring element 5 and a contact part 4 , The spring element 5 has a clamping leg 9 and a holding leg 8th on. The spring leg 9 serves for mechanical clamping of the conductor 2 , the holding thigh 8th holds the clamping leg 9 , The spring element 5 can be made for example as a stamped part of metal, for example, CrNi.

The contact part 4 used to make an electrical contact with the conductor 2 and consists of an electrically conductive material for this purpose. The contact part 4 has an area that leads to the current-carrying support for the inserted conductor 2 serves and via which the electrical contact is provided; In the following, this section will be briefly referred to as a contact edition 10 designated. The contact pad 10 is for example in the 2 and 6 designated.

In the following, the following directions are used to facilitate the presentation: The plug-in direction 3 points to "front", the holding leg 8th is oriented vertically in the housing 15 the clamp 20 arranged accordingly according to the 1 . 2 and 4 to 8th "Top" and "bottom" is selected. "Right" and "Left" are again with respect to the direction of insertion 3 selected.

The holding thigh 8th is so in the case 15 stored that it is supported from below. Like from the 1 and 2 it can be seen that this is realized in the embodiment shown here, that the holding leg 8th on a leg of the contact part 4 - The below as the second contact part-leg 12 is called - is stored and the latter leg in turn on a corresponding support, which is part of the housing 15 is trained.

The insertion direction 3 thus runs horizontally forward. The holding thigh 8th is at least substantially perpendicular to the insertion direction 3 arranged aligned.

7 shows a view of the Kontaktklemmelements 1 when looking in plug-in direction, 8th a view from the right and 9 a view from above.

6 shows a cross-sectional view of the Kontaktklemmelements 1 from the left. The clamping leg 9 has a clamping edge in front 13 on. A nip 6 for the leader 2 is between the clamping edge 13 and the contact pad 10 of the contact part 4 educated. The inserted conductor 2 So, as in 2 shown for contacting between the clamping edge 13 on the one hand and the contact overlay 10 on the other hand held in a clamped state.

The clamping leg 9 is arranged so that it extends from the back top to the bottom front, both in the state without a ladder 2 , as well as in the state with plugged in conductor 2 ,

The holding thigh 8th is according to this embodiment arranged such that it overstretches the height range in which the conductor 2 is moved when plugging. To the insertion movement of the conductor 2 to allow, the holding leg has 8th two components, which is provided on both sides of the intended insertion movement. This will be discussed in more detail below.

As in 6 shown is the clamping leg 9 with the holding leg 8th in a connection area 17 connected. The connection is such that the clamping leg 9 relative to the retaining leg 8th can be pivoted.

The connection area 17 is located above the height range in which the conductor 2 is moved when plugging.

In 6 are two different pivoting positions A and B of the clamping leg 9 located. The position A corresponds to that position, the clamping leg 9 in condition without inserted conductor 2 has, the position B results when the clamping edge 13 is pivoted upward, as when plugging a conductor 2 can be done. Accordingly, the clamping leg shows 9 in 1 the position A and in 2 is the position B occupied.

The position A corresponds to the rest position, the clamping leg 9 due to the spring action of the spring element 5 occupies when no external force acts. In position B is the clamping leg 9 due to the spring action of the spring element 5 anxious to swing into the rest position A.

The clamping leg 9 can be pivoted so far that the distance between the clamping edge 13 and the contact pad 10 greater than the corresponding diameter of the inserted conductor 2 so that's the nip 6 is relieved and the leader 2 contrary to the insertion direction 3 without damage from the contact clamping element 1 or from the terminal 20 can be pulled.

Like from the 4 to 6 can be seen, the clamping leg 9 a longitudinal area 18 along its main extension, the connecting area 17 overlaps or overstretched. The longitudinal area 18 During pivoting, it is essentially not or at least not significantly curved or bent. The longitudinal area 18 of the clamping leg 9 So is so stiff in itself that he in the pivotal movement of the clamping leg 9 relative to the retaining leg 8th around the connection area 17 performs a tilting or rocking movement. The stiffness of the longitudinal area 18 helps to increase the trigger resistance. Preferably, the clamping leg 9 provided with a separate additional stiffening, for example in the form of an elongated embossment extending over the connecting area 17 and preferably substantially over the entire longitudinal extent of the clamping leg 9 extends, for example, as in the 4 and 6 shown. With such embossing can be given a given material, the rigidity of the clamping leg 9 continue to increase in a comparatively simple manner.

The connection area 17 is in this embodiment - seen from the side - in a central region of the clamping leg 9 provided, as for example 6 evident. Thus, the clamping leg can be 9 with respect to the connection area 17 in a rearward area 24 and a front area 23 organize.

The rear area 24 forms a "free extension" 19 , which by appropriately selected stiffness of the clamping leg 9 designed such that when a force from above on the free extension 19 the clamping leg 9 can be pivoted starting from the rest position A in the position B. The mechanical conditions are chosen in particular so that by correspondingly large pressure on the free extension 19 the nip 6 can be relieved. the clamp 20 Can be used as a detachable clamp this way 20 be designed. The relief of the nip 6 So finds by pressure on the clamping leg 9 on the side held with respect to the connection area 17 the nip 6 is opposite. Like from the 2 . 10 and 11 can be seen in the terminal 20 for this an access area for a release tool 29 be provided for example in the form of a screwdriver. In the exemplary embodiment, the access area is through an opening 28 realized, extending from the free extension 19 extends upward and is dimensioned such that the intended release tool 29 from above into the clamp 20 so far can be plugged in that for the relief of the nip 6 necessary pressure on the free end 19 exercise.

Instead of a separate release tool 29 can also be a permanent example with the case 15 connected pusher or button or the like may be provided with appropriate function. This is known as such from the prior art.

As continues from the 2 . 3 and 10 is apparent, is to limit the way the free extension 19 at relief of the terminal point 6 covers ("Löseweg") a limitation, for example in the form of a stop 30 intended. The stop 30 Can be part of the case 15 be educated. That way is the clamp 20 definable for a certain range of conductor cross sections or for a maximum conductor cross section.

Due to the solubility, the clamp is suitable 20 also for leaders 2 , which are so finely stranded, that they are without relieving the nip 6 do not plug in because they are not strong enough to hold the clamping leg 9 sufficiently to pivot out of the rest position A out.

The following is on the 4 and 5 Referenced. The holding thigh 8th of the spring element 5 consists of two each laterally of the path of the intended insertion movement and preferably arranged symmetrically to each other pillar elements 22 , which can be formed by punching. The pillar elements 22 are arranged vertically in a lower region, substantially at the level of the intended insertion movement. In the upper area, the pillar elements 22 a backward bend and then go directly into the rear area 24 of the clamping leg 9 above. The rear area 24 of the clamping leg 9 has the same lateral extent as the two pillar elements 22 , This is for example off 4 seen.

The front area 23 of the clamping leg 9 has substantially a lateral extent, the horizontal distance of the pillar elements 22 equivalent. In this way, the lateral edges of the front area can be 23 of the clamping leg 9 through the same punches that also form the pillar elements 22 serve.

The following will be back to the 1 and 2 Referenced. The housing 15 has a support element 16 on, the clamping leg 9 of the spring element 5 in the connection area 17 supported during pivoting in the sense of a pivot bearing. In 3 is one of the 2 corresponding, but perspective and partially broken view of the terminal 20 shown. Also in this illustration is the support element 16 to recognize.

Through the support element 16 It is possible, with sufficient guidance of the pivoting movement on the one hand the clamping leg 9 To make particularly stiff and on the other hand, the flexibility of the joint 17 to be as small as desired; As a result, the resistance during insertion of the conductor can be particularly secure clamping 2 be made very small in a simple manner. In the embodiment, the Flexibility of the connection area 17 For example, particularly easy by appropriate choice of the width of the pillar elements 22 establish.

The fact that the insertion resistance can be selected particularly small, the terminal 20 also for insertion without relieving the clamping point 6 for such leaders 2 be interpreted, which have relatively low intrinsic stability.

The support element 16 is right in front of the two pillar elements 22 of the holding thigh 8th in a tight spot 20 arranged. In the upper area, the support element 16 a backward rounding on the shape of the upper portions of the pillar elements 22 corresponds in that pivoting state in which the clamping leg 9 the nip 6 relieved. In this way, a non-positive mounting is made possible during the pivoting movement and overall a particularly good and reliable guidance of the pivoting movement can be achieved.

When the clamping leg 9 is in the rest position A, is accordingly between the said rounding of the support element 16 and the rear bends of the pillar elements 22 a small gap exists.

The support element 16 contacted in the embodiment, the vertical regions of the two pillar elements 22 at least partially, preferably in that height range in which the conductor 2 is moved when plugging. For this purpose, according to this embodiment, the support element 16 two lateral components on which the two pillar elements 22 of the holding thigh 8th directly support against the insertion direction. This will cause a force on the clamped conductor 2 contrary to the insertion direction 3 acts and on the retaining leg 8th of the spring element 5 transferred immediately intercepted. This contributes to increasing the resistance against accidental pulling out of the conductor 2 at. Preferably, the support element contacts 16 the two pillar elements 22 the entire surface. As a result, a particularly stable support is possible with a given cost of materials.

At the height on which the insertion movement for the ladder 2 is provided has the support element 16 a corresponding recess on in order for the movement of the conductor 2 to offer space when plugging in. In 3 is a corresponding embodiment of the support element 16 shown. Preferably, the support element 16 at the level of the nip 6 the same lateral extent as the pillar elements 22 ,

How out 6 can be seen, the spring element 5 another section 14 on, with respect to the retaining leg 8th beyond the connection area 17 is provided. In the embodiment, the further section closes 14 directly to the lower limit of the retaining leg 8th or the two pillar elements 22 at.

For the further section 14 is another prop 12 provided the section 14 supports against the withdrawal force. As a result, so when deducting the clamped conductor 2 with unloaded clamping point 6 the withdrawal force to the spring element 5 transferred and deflected that section 14 against the further support 12 is pressed; In this way, the trigger resistance can be further increased. The force is thereby from the support element 16 caught and over the section 14 on the further support 12 transfer.

In the embodiment, as a further support part of the contact part 4 provided, namely a thigh 12 of the contact part 4 , the immediate contact to the contact 10 borders and from the latter contrary to the insertion direction 3 extends obliquely downwards. This leg of the contact part 4 is hereinafter referred to as "second contact leg" 12 designated.

The further section 14 is as another leg of the spring element 5 designed and opposite the retaining leg 8th bent by more than 90 °. He thus has an obliquely upwardly directed surface normal, with the insertion 3 includes an obtuse angle. In other words, the section 14 arranged so that it - when looking in the insertion direction 3 on the nip 6 - in front of the nip 6 is arranged and at an acute angle, namely from the bottom rear to the front top, on the nip 6 tapers. In this embodiment, the following advantage offers: Even when inserting the head 2 becomes the section 14 against the further support, in this case against the second contact part leg 12 pressed. In this way it prevents the spring element 5 when plugging in the conductor 2 takes off from the other support. Such lifting would increase the insertion resistance, which is undesirable.

In the embodiment, adjacent to the section 14 another leg 7 of the spring element 5 hereafter referred to as "plant leg" 7 referred to as.

The contact part 4 has a likewise vertically arranged leg, which is referred to below as the "first contact part leg" 11 is referred to and in the area of the nip 6 with the second contact part leg 12 connected is. The plant thigh 7 of the spring element 5 is at the first contact leg 11 fastened, in an area above the nip 6 , This attachment 25 is in particular designed such that it is a displacement of the plant leg 7 relative to the first contact part leg 11 prevented, for example, by a corresponding stop. Like from the 4 and 5 shows, this has the first contact part leg 11 a passage opening 26 on, in the upper edge of a downwardly directed pin is provided which in a recess provided for this purpose of the spring element 5 intervenes.

The recess of the spring element 5 is in a bend 27 of the spring element 5 provided, which is located directly on the upper limit of the plant leg 7 followed. With this configuration can be cause that for the production of the Kontaktklemmelements 1 the initially separately manufactured spring element 5 rotated laterally by 90 ° relative to its intended position with the bend 27 in the insertion direction 3 through the passage opening 26 of the first contact part leg 11 is guided, and then placed under the introduction of the pin in the corresponding recess in the intended position. The width of that part of the bend 27 in the suspended state behind the first contact leg 11 is arranged, is preferably chosen larger than the width of the passage opening 26 at the height of the hanger, creating an additional safeguard of the plant leg 7 and thus the spring element 5 is achieved. The embodiment shown here thus allows a simple and stable mounting of the spring element 5 at the contact part 4 ,

The passage opening 26 of the first contact part leg 1 extends in the embodiment so far down that it also provides space for the inserted conductor. It represents, so to speak, a "long hole". The leader 2 can therefore with its front end through the passage opening 26 be put through.

In the embodiment, the through hole is 26 of the contact part 4 down through the contact pad 10 limited. As in particular from 4 shows is a part of the material used in the production of the through hole 26 from the first contact part leg 11 is taken out, bent forward and forms almost another leg 33 of the contact part 4 , for example, can be bent so far that it is directed obliquely forward down front and for storage of Kontaktklemmelements 1 in the case 15 can be used, as for example suggestively from the 1 and 2 results. This can be done in the housing 15 a corresponding support may be formed, which is the contact part 1 against movements in and against the insertion direction 3 guaranteed.

Also, in the case 15 a lateral guide 34 for the first contact leg 11 provided, such as off 3 seen.

How best 6 As can be seen, the front area extends 23 of the clamping leg 9 so far forward that he at least in the position B, preferably in the position A with its clamping edge 13 in the passage opening 26 protrudes. How best 4 can be seen, is the width of the passage opening 26 to the width of the front area 24 of the clamping leg 9 matched, in such a way that the lateral boundaries of the passage opening 26 a lateral guide for the front portion of the clamping leg 9 form during the pivoting movement. In this way it can be easily prevented that at one on the ladder 2 acting withdrawal force of the clamping legs 9 makes an evasive movement to one side. This thus further contributes to the safety of the clamping.

In the exemplary embodiment, therefore, the spring element 5 three legs, namely the plant leg 7 , the thigh of the section 14 represents and the holding thigh 8th , The plant thigh 7 and the holding leg 8th form legs of a U-shaped portion of the spring element 5 , where the section 14 forms the base of the U's. The leader 2 when inserting along the direction of insertion 3 through recesses in the two thighs 7 . 8th inserted through the U-shaped section. With reference to the retaining leg 8th is the recess between the two pillar elements 22 educated. The plant thigh 7 has for this purpose a corresponding structure, such as from 5 evident. The section is also advantageous 14 trained accordingly, so that the section 14 and the plant leg 7 each by simple, respectively correspondingly angled extensions of the two pillar elements 22 of the holding thigh 8th are formed. As with viewing the 4 and 5 becomes clear, however, the lateral extent of the two pillar elements differs 22 of the holding thigh 8th from that of the section 14 and the plant leg 7 , This can improve the stability of the section 14 and the plant leg 7 regardless of the flexibility of the joint 17 , thus independent of the width of the pillar elements 22 be determined. Overall, this embodiment thus enables a simple and material-saving production, wherein the said mechanical requirements can be dealt with separately.

The spring element 5 is at the level of the nip 6 in the insertion direction 3 seen so before the contact part 4 arranged it when plugging in the conductor 2 at the level of the nip 6 in plug direction 3 against the contact part 4 is pressed. This is realized in particular by the fact that both the Anlegschenkel 7 as well as the holding leg 8th of the spring element 5 at the level of the nip 6 in the insertion direction 3 seen in front of the contact part 4 , more precisely in front of the first contact part leg 11 are arranged. This shape allows a total soft spring characteristic of the spring element 5 , whereby also the insertion resistance can be reduced.

As based on 6 can be seen, tension the first and the second contact part leg 11 . 12 an angular range W of less than 180 °, for example about 110 °, wherein from the nip 6 seen from the direction of insertion 3 opposite direction within the angular range W runs. In this way, the spring element 5 when inserted in a guided manner against the contact part 4 pressed, which contributes to the safety in the contact production.

In 12 is a view of the clamp 20 when looking in plug-in direction 3 shown. the clamp 20 has a total of several, here four clamping points, which are all the same design.

The contact clamping element 1 is on average AA in 7 shown. The section BB corresponds to the state of the clamped conductor 2 , so like, for example, in 10 shown.

In the embodiment, the clamp 20 designed as plug-in cutting clamps. This is indicated by the clamp 20 a plug contact 31 and an insulation displacement pad 32 on. The plug contact 31 is as a downwardly bent extension of the second contact part leg 12 educated. The cutting nip 32 is in the upper region of the first contact part leg 11 educated.

By easy adjustments leaves the clamping according to the invention also apply to other terminals, such as a plug-in terminal, a plug and solder terminal or a feed-through terminal, for example with a pusher or Button as integrated release tool Etc.

• • Die Klemme weist ein besonders gutes Verhältnis von geringem Einsteckwiderstand einerseits und hohem Abzugswiderstand andererseits auf.
• • Die Klemme zeigt ein sehr sicheres Klemmverhalten.
• • Die Klemme kann lösbar gestaltet werden.
• • Die Klemme lässt sich materialsparend ausführen.
• • Die Klemme erlaubt unterschiedliche Anwendungs-Ausführungen, beispielsweise in Form einer Steckklemme, einer Steck- und Lötklemme oder einer Durchgangsklemme.
• • Die Klemme ist in der Herstellung einfach.
• • Die Klemme kann für bestimmte Leiterquerschnitte definiert werden.

The advantages of the invention can be summarized as follows:

• • The terminal has a particularly good ratio of low insertion resistance on the one hand and high trigger resistance on the other hand.
• • The clamp shows a very safe clamping behavior.
• • The clamp can be made detachable.
• • The clamp can be carried out to save material.
• • The terminal allows different application versions, for example in the form of a plug-in terminal, a plug and solder terminal or a through terminal.
• • The clamp is easy to manufacture.
• • The terminal can be defined for specific conductor cross sections.

1

electrical Contact clamping element

2

electrical ladder

3

insertion

4

contact part

5

spring element

6

nip

7

contact leg

8th

holding leg

9

clamping leg

10

contact support

11

first Contact part-leg

12

second Contact part-leg

13

clamping edge

14

section of the spring element

15

Insulated

16

support element

17

connecting area

18

longitudinal section of the clamping leg

19

Free renewal

20

electrical contact terminal

21

insertion

22

pillar elements

23

front Area of the clamping leg

24

Rear area of the clamping leg

25

attachment of the abutment leg on the first contact part leg

26

Passage opening of the first contact leg

27

bend of the spring element

28

Opening for a release tool

29

release tool

30

attack

31

plug contact

32

Insulation displacement contact point

33

Another Leg of the contact part

34

lateral guide for contact part in the case

W

angle range

Claims (18)

Electrical contact terminal ( 20 ) for contacting an electrical conductor ( 2 ), in which the contacting by an insertion of the conductor ( 2 ) in the contact terminal ( 1 ) along a plug-in direction ( 3 ), comprising - a housing ( 15 ), and - a spring element ( 5 ) with a clamping leg ( 9 ) and a holding leg ( 8th ), wherein a clamping point ( 6 ) for the leader ( 2 ) between a clamping edge ( 13 ) of the clamping leg ( 9 ) on the one hand and a contact pad ( 10 ) is formed on the other hand, the clamping leg ( 9 ) with the holding leg ( 8th ) in a connection area ( 17 ) is pivotally connected relative to each other, and wherein the housing ( 15 ) a support element ( 16 ) for the spring element ( 5 ), characterized in that the support element ( 16 ) as a pivot bearing for the spring element ( 5 ) is formed, wherein it the clamping leg ( 9 ) in the connection area ( 17 ) supported during pivoting. Electrical contact clamp according to claim 1, in which the supporting element ( 16 ) the spring element ( 5 ) against a withdrawal force. Electrical contact terminal according to claim 1 or 2, wherein the spring element ( 5 ) at least one section ( 14 ), which with respect to the retaining leg ( 8th ) beyond the connection area ( 17 ) is provided, and wherein another prop ( 12 ) for the spring element ( 5 ), which covers the section ( 14 ) against a withdrawal force. An electrical contact clamp according to claim 3, wherein the section ( 14 ) - when looking in plug-in direction ( 3 ) on the clamping point ( 6 ) - in front of the nip ( 6 ) is arranged and thereby at an acute angle to the nip ( 6 ). Electrical contact terminal according to one of the preceding claims, wherein the clamping leg ( 9 ), the connection area ( 17 ), longitudinal area ( 18 ) along its main extension, which is not curved or bent during pivoting substantially. Electrical contact clamp according to Claim 5, in which the longitudinal region ( 18 ) of the clamping leg ( 9 ) has an additional stiffening. Electrical contact terminal according to one of the preceding claims, wherein the clamping leg ( 9 ) with respect to the connection area ( 17 ) beyond the nip ( 6 ) a free extension ( 19 ), wherein at a force on the free extension ( 19 ) The terminal point can be relieved. An electrical contact terminal according to claim 7, wherein a release path extending from the free extension ( 19 ) in the action of force to relieve the clamping point ( 6 ) is limited by a stop. Electrical contact terminal according to one of the preceding claims, in which for the clamping leg ( 7 ) in an area laterally of the clamping edge ( 13 ) a lateral guide ( 26 ) is provided during pivoting. Electric contact clamping element ( 1 ) for contacting an electrical conductor ( 2 ), in which the contacting by an insertion of the conductor ( 2 ) in the contact clamping element ( 1 ) along a plug-in direction ( 3 ), comprising a spring element ( 5 ) with a clamping leg ( 9 ) and a holding leg ( 8th ), wherein a clamping point ( 6 ) for the leader ( 2 ) between a clamping edge ( 13 ) of the clamping leg ( 9 ) on the one hand and a contact pad ( 10 ) is formed on the other hand, wherein the clamping leg ( 9 ) with the holding leg ( 8th ) in a connection area ( 17 ) is pivotally connected relative to each other, characterized in that the clamping leg ( 9 ) with respect to the connection area ( 17 ) beyond the nip ( 6 ) a free extension ( 19 ), wherein at a force on the free extension ( 19 ) the nip ( 6 ) can be relieved. Electrical contact clamping element according to claim 11, wherein the clamping leg ( 9 ), the connection area ( 17 ), longitudinal area ( 18 ) along its main extension, which is not curved or bent during pivoting substantially. Electrical contact clamping element according to claim 11 or 12, wherein the longitudinal region ( 18 ) of the clamping leg ( 9 ) has an additional stiffening. Electric contact clamping element ( 1 ) for contacting an electrical conductor ( 2 ), in which the contacting by an insertion of the conductor ( 2 ) in the contact clamping element ( 1 ) along a plug-in direction ( 3 ), comprising a spring element ( 5 ) with a clamping leg ( 9 ), wherein a clamping point ( 6 ) for the leader ( 2 ) between a clamping edge ( 13 ) of the clamping leg ( 9 ) on the one hand and a contact pad ( 10 ) is formed on the other hand, characterized in that the spring element ( 5 ) at least three legs ( 7 . 8th . 9 ), wherein one of the three legs of the clamping leg ( 9 ) and the two other leg thighs ( 7 . 8th ) of a U-shaped portion of the spring element ( 5 ) and the conductor ( 2 ) when inserting along the insertion direction by recesses in the two legs ( 7 . 8th ) is inserted through the U-shaped section. Electric contact clamping element ( 1 ) for contacting an electrical conductor ( 2 ), in which contacting by inserting the conductor ( 2 ) in the contact clamping element ( 1 ) along a plug-in direction ( 3 ), comprising - a contact part ( 4 ) and - a spring element ( 5 ) with a clamping leg ( 9 ), wherein a clamping point ( 6 ) for the leader ( 2 ) between a clamping edge ( 13 ) of the clamping leg ( 9 ) on the one hand and a contact pad ( 10 ) of the contact part ( 4 ) is formed on the other hand, characterized in that the spring element ( 5 ) at the level of the nip ( 6 ) in plug-in direction ( 3 ) seen in front of the contact part ( 4 ) is arranged so that when inserting the conductor ( 2 ) at the level of the nip ( 6 ) in plug-in direction ( 3 ) against the contact part ( 4 ) is pressed. Electric contact clamping element ( 1 ) according to claim 14, wherein the spring element ( 5 ) two spring element legs ( 7 . 8th ), both at the level of the clamping point ( 6 ) in plug-in direction ( 3 ) seen in front of the contact part ( 4 ) are arranged. Electric contact clamping element ( 1 ) according to claim 14 or 15, wherein the contact part ( 4 ) two contact part legs ( 11 . 12 ), which span an angular range (W) of less than 180 °, wherein the insertion movement within the angular range (W) is provided. Electric contact clamping element ( 1 ) according to claim 16, wherein the spring element ( 5 ) with a spring element section ( 14 ) one of the two contact part legs ( 11 . 12 ) contacted. Electrical terminal, comprising - an electrical contact clamping element ( 1 ) according to one of claims 10 to 17, and - an insulating material housing ( 15 ).