DE202017103185U1 - Spring terminal for conductor - Google Patents

Abstract

Spring terminal (1), in particular direct plug-in terminal, for connecting a conductor (10), which may be formed as a flexible stranded conductor having at least the following features: a. a housing (3, 30, 40) having a chamber (4) and having an insertion channel (5) for the conductor into the chamber (4), b. a busbar (8) and / or a clamping cage (13), c. an in the chamber (4) arranged acting as a compression spring clamping spring (7) for fixing the electrical conductor (10) on the busbar (8) and / or the clamping cage (13) in the region of a clamping point (K), d. wherein the clamping spring (7) has a pivotable about a pivot axis clamping leg (7b) which is adjustable from a latching state (R) in which it is locked in a detent position, in a clamping state (K) in which it unlocks from the latching state is and presses the electrical conductor (10) against the busbar (8) or the clamping cage (13), characterized in that e. the clamping leg (7b) with two different adjusting means of the locking state (R) is releasable.

Description

The present invention relates to a spring-loaded terminal according to the preamble of claim 1.

Such spring terminals in one embodiment as a direct plug-in terminals (push-in) with a trained as a compression spring clamping spring which presses the conductor against the busbar, are known in various embodiments. They differ mainly due to their application, for example, depending on the required current carrying capacity of the busbar, the spring force of the clamping spring and / or their installation conditions, especially their size. Here are a simple installation and a cost-effective production permanently Asked for such a terminal.

The US Pat. No. 7,997,915 B2 discloses a wire end ferrule, at one end of a direct plug-in terminal for non-detachable connection of an electrical conductor is arranged. The direct plug-in terminal comprises a current-carrying clamping cage for electrically contacting the electrical conductor and a spring for fixing the electrical conductor. The spring has a pivotable clamping leg, which is positioned at not inserted into the direct plug-in electrical conductor on a retaining edge, so that a free space for the electrical conductor kept and this is inserted into the clamping cage. When inserted into the direct plug-in terminal, the holding means is displaced so that the clamping leg is released and pivoted. The pivoted clamping leg presses the electrical conductor to the clamping cage.

From the EP 2 768 079 A1 is known a further development of this direct plug-in terminal, in which the latching state with an actuating element, a pressing element to be able to recover after triggering of the locked clamping leg by the conductor.

It is the object of the present invention to provide a spring-loaded terminal, in particular an attachable spring-loaded terminal, in particular for stranded conductors, which improves this functionality and in particular can also be used for stranded conductors with a small cross-section.

The object is achieved in each case with a spring-loaded terminal according to claim 1 and / or according to claim 2. Advantageous embodiments can be found in the dependent claims.

What is provided is a spring terminal, in particular Direktsteckklemme, for connecting a conductor, which may be formed as a flexible stranded conductor having at least the following features: a housing with a chamber and with an insertion channel for the conductor in the chamber, a busbar, in the Chamber arranged, acting as a compression spring clamping spring for fixing the electrical conductor to the busbar in the region of a clamping point, wherein the clamping spring has a pivotable about a pivot axis in a pivoting clamping leg, which is locked by a locking state in which it is locked in a detent position in a Clamping state is adjustable, in which it is unlocked from the latching state and presses the electrical conductor against the busbar, wherein the clamping leg with two different adjustment means of the latching state is releasable.

The release of the open position or the locking position of the clamping leg is possible in two different ways. This is advantageous because when the actuation of the adjusting means in an individual case does not lead to release the detent position of the clamping spring or the clamping leg, this still the other adjusting means can be used to release the clamping spring or its clamping legs from the detent position.

From the EP 2 768 079 A1 this is not known, because there is not solved with the pressing element of the locking state but only restored.

• a) ein Gehäuse mit einer Kammer und mit einem Einsteckkanal für den Leiter in die Kammer,
• b) eine Stromschiene und/oder einen Klemmkäfig,
• c) eine in der Kammer angeordnete, als Druckfeder wirkende Klemmfeder zum Fixieren des elektrischen Leiters an der Stromschiene und/oder dem Klemmkäfig im Bereich einer Klemmstelle,
• d) wobei die Klemmfeder einen um eine Schwenkachse verschwenkbaren Klemmschenkel aufweist, der von einem Rastzustand, in dem er in einer Raststellung verrastet ist, in einen Klemmzustand verstellbar ist, in dem er aus dem Rastzustand entrastet ist und den elektrischen Leiter gegen die Stromschiene oder den Klemmkäfig drückt, oder eine Federkraftklemme nach Anspruch 1, wobei
• e) der Rastzustand nicht durch Verrasten eines Elementes an einer freien Klemmkante des Klemmschenkels erzeugt ist und dass der Rastzustand durch Einbringen des Leiters in Leitereinführrichtung in das Gehäuse lösbar ist.

The object is further achieved by a spring-loaded terminal, in particular direct plug-in terminal, for connecting a conductor, which may be formed as a flexible stranded conductor, which has at least the following features:

• a) a housing with a chamber and with an insertion channel for the conductor into the chamber,
• b) a busbar and / or a clamping cage,
• c) an arranged in the chamber, acting as a compression spring clamping spring for fixing the electrical conductor to the busbar and / or the clamping cage in the region of a nip,
• d) wherein the clamping spring has a pivotable about a pivot axis clamping leg, which is adjustable from a latching state in which it is locked in a detent position in a clamping state in which it is unlocked from the latching state and the electrical conductor against the busbar or the Clamping cage presses, or a spring-loaded terminal according to claim 1, wherein
• e) the latching state is not generated by locking an element on a free clamping edge of the clamping leg and that the latching state is releasable by introducing the conductor in the conductor insertion into the housing.

It is after this to be regarded as a separate invention solution as well as Development of claim 1 suitable solution advantageous that the locking state is not generated by locking an element on a free clamping edge of the clamping leg and that in a simple way the locking state by inserting the conductor in the conductor insertion into the housing is solvable. Because at the clamping edge of the clamping leg or would be relatively high forces to release the latching position required. In addition, wear can occur at the clamping edge due to the locking. This problem is avoided in this way. There are also beyond the clamping edge - in particular in a latching by pressure on the clamping leg and latching a pusher on the housing - defined friction conditions given. It is accordingly also preferred that the latching state is generated by pressure on the clamping leg in Leitereinführrichtung, for example by means of an acting on the clamping leg actuator, in particular pusher, which can be latched to the housing in a Verraststellung in which it by pressure on the clamping legs in Ladereinführrichtung keeps this latched in the open position. In this way, only relatively small forces and beyond relatively well-defined forces for releasing the clamping leg with the conductor from the latching position are required. This advantageous effect makes the invention also for releasing the Verraststellung with the head itself to advantage, by the pusher is coupled to a movable trigger element that cooperates with the clamping leg and which is movable by pressure of the conductor to so also the pusher from his Release latching position.

Constructively, the subject matter of claim 1, 2 and / or 3 can be implemented in various ways, such as advantageous in the ways described below.

It is advantageous and simple if the single or the first of the two adjusting means has a movable trigger element, which acts on the end of the conductor to be contacted upon release of the conductor and with the clamping leg of the clamping spring directly or indirectly - in the latter case over at least one Intermediate element - is released from the latching state. In the first case - direct action - it is also conceivable, for example, that the triggering element is formed integrally with the pusher.

It is also advantageous and simple if the second of the two adjusting means comprises an actuating element for moving the clamping leg. Then it is advantageous if the actuating element itself can be latched together with the clamping leg of the clamping spring in the latching state and even directly from the latching state is releasable, whereby the clamping leg of the clamping spring is released from the latching state.

The release of the open position or the locking position of the clamping leg is possible in two different ways. Thus, the release of the locking position of the clamping leg can be done on the one hand by means of the conductor and on the other hand by means of the actuating element. This is advantageous because even if the conductor is designed, for example, as a very thin multi-strand conductor with which only a very small force can be exerted on the trigger element, the pusher itself can be used directly to the clamping spring or their Release clamping leg from the locking position.

According to a structurally well implementable and safe working variant is provided that the actuating element is a pusher for moving the clamping leg, which is displaceable in an actuating channel of the housing in the insertion direction and limited perpendicular to the plug is movable and in the housing at a locking edge in the latching state is latched.

This can be realized, for example, in that the pusher has a lateral latching edge, which can be latched by moving it perpendicularly to the insertion direction behind the latching edge of the housing in the latching state and can be released from the latching state by opposing movement.

According to an advantageous and easy to handle variant can be provided that the pusher is moved in the insertion direction after sliding past the locking edge by the spring force of the clamping spring in the locking position and that the pusher by moving with a manually operable operating tool such as a screwdriver in the opposite direction from the latching state is solvable.

It is also expedient, since the pusher in the insertion direction can be kept relatively short, when the pusher has a recess for attaching an actuating tool, which is dimensioned so that with the actuating tool moving the pusher in the insertion direction and perpendicular to the insertion direction can be realized ,

According to a structurally also compact and cost-implementable variant, it is provided that the triggering element is designed as a rocker arm mounted pivotably in the housing. It is expedient if the rocker arm has two lever arms, of which one lever arm is adapted to be pivoted with the conductor and of which the other lever arm is adapted to act on the pusher to release it from the latching state.

The spring-loaded terminal is not only suitable for full conductors, but especially for stranded conductors. Because the stranded conductor is displaced back and forth without splicing the strands in the locked state in the free space of the chamber in the housing. It is a material for the busbar selectable, which has good electrical conductivity, such as copper or a copper alloy. For spring a spring steel is advantageous as a manufacturing material.

In the following the invention with reference to an embodiment with reference to the drawings will be described in more detail. Show it:

1a a side view of a spring-loaded terminal with a clamping leg, which is provided for clamping an inserted into the spring terminal or inserted electrical conductor, in an unlocked state;

1b the spring clamp off 1a) with the clamping leg in a latching state;

2a a side view of the spring clamp 1b) with a conductor during insertion of the conductor into the spring-loaded terminal, wherein the clamping leg is still in the latching state;

2 B the spring clamp off 2a) with an inserted into the spring terminal electrical conductor, wherein the clamping leg is unlocked from the locking state;

3a a side view of an actuating element of the spring terminal 1a and 2a) ;

3b a plan view of the actuator 3a ;

4a a sectional view of a spring clip similar to 1a and 2a with a conductor during insertion of the conductor into the spring-loaded terminal, wherein the clamping leg is still in the latching state;

4b an excerpt from 4a ;

4c the spring clamp off 4a) in a perspective and sectional view, here with an inserted into the spring terminal electrical conductor with the clamping legs in the locking state;

5a , b another spring terminal once in an unconnected and once in a wired state, wherein a part of the housing of the spring-loaded terminal has been hidden;

6a a perspective view of the spring clamp 5 ;

6b -C perspective views of components and / or assemblies of the spring-loaded terminal 6a ; and

7a -C perspective views of variants of individual components and / or assemblies for the Federkraftklamme 6a ,

8a , b another spring terminal once in an unconnected and once in a wired state, wherein a part of the housing of the spring-loaded terminal has been hidden;

8c a perspective view of the spring clamp from the 8a , b;

9a -C perspective views of components and / or assemblies of the spring-loaded terminal 8c ;

10a a sectional perspective view of another spring terminal with a clamping leg, which is provided for clamping an inserted or inserted into the spring terminal electrical conductor, in a non-latched, not open state of a clamping spring;

10b a perspective view of a formed as a pusher actuator of the spring terminal 10a) ;

11 a side sectional view of the spring clamp 10a) with an actuating tool attached thereto in a state in which the clamping leg of a clamping spring is placed in a latched state and in which then a conductor is inserted into a nip;

12 the spring clamp off 10a) in the latching state with an inserted into the terminal point conductor and with an operating tool;

13 the spring clamp off 10a) in the locked state 12) without a conductor inserted into the nip and with a relative to 11 applied elsewhere in the pusher actuating tool with which the locking state to be solved; and

14a , b in a) is a side sectional view of another spring terminal in an open latching state and in b) designed as a pusher actuator of the spring terminal 10a ,

The 1a and b as well 2a , b show a first spring clamp 1 , The 4a to show c another spring clamp 1 whose structure corresponds to that of the spring-loaded terminal 1 of the 1a -Federation 2a -B except for a slightly different geometry of a support contour still to be explained 9 of the housing 3 equivalent. The spring clamp 1 is shown in one embodiment as an attachable clamp.

The spring clamp 1 has a housing 3 on, in which a direct plug connection 2 is trained. The housing 3 preferably consists of an insulating plastic. In the case 3 is a chamber open to at least one side 4 educated. The chamber 4 has a back wall here. The chamber 4 is also on the one hand by a Leiterereinsteckkanal 5 with one of the outer sides of the housing - called "plug-in side", here the top - connected and on the other hand by an actuating channel 6 , The actuating channel 6 runs essentially parallel to the conductor insertion channel 5 , The actuating channel 6 is trained here in itself (see 4a and c).

In the chamber 4 are to form the Direktsteckanschlusses 2 at least one clamping spring 7 and a power rail 8th arranged. Optionally, a metal clamping cage may be provided to support the clamping spring 7 and the busbar 8th serves. Here no clamping cage is provided. This function take over here walls of the chamber 4 of the housing 3 ,

The clamping spring 7 is U-shaped or V-shaped and has a support leg 7a and a clamping leg 7b on. The support leg 7a is supported by an abutment. This abutment is here by a projection 3b on a wall of the chamber 4 educated. The clamping leg 7b is over an arcuate back 7c with the support leg 7a connected. The back 7c overlaps a support contour 9 of the housing 3 entering the chamber 4 protrudes. This support contour 9 is exemplary here cylindrical and in 4a to 4c to the back 7c formed semi-cylindrical. The support contour 9 also defines the pivot axis / axis of rotation lying in the central axis of the cylinder contour for a pivoting movement of the clamping leg 7b ,

The pivotable clamping leg 7b serves with spring force 10 in the region of a terminal point K on a conductor 10 to interact and this leader 10 against the busbar 8th to press. Thus, an electrically conductive contact between the inserted conductor 10 and the busbar 8th produced. This opens up well 2 B ,

The leader 10 can in a Leitereinsteckrichtung X through the Leiterereinsteckkanal 5 in the chamber 4 be guided in the area of the terminal point K (see 2a . 4a ).

In the actuating channel 6 an actuator is arranged. The actuating element is here in a preferred embodiment as a pressing element - short "pusher 11 Called, trained in the actuating channel 6 slidably guided. Preferably, there is a free end 11a of the pusher 11 over the outside of the case 3 to the outside, so that it is easily accessible. This is advantageous but not mandatory. Next may be beneficial to this free end 11a an actuating contour - in particular a depression 11b - For applying a tool, in particular a screwdriver to the pusher 11 be educated. This depression 11b is preferably sized so that a screwdriver relatively tight and far into the recess 11b is insertable ( 4a . 4c ).

The other end 11c of the pusher 11 protrudes into the chamber 4 , The pusher 11 also has a pressure contour 11d - here between his two ends 11a and 11c - on. This pressure contour 11d serves on the clamping leg 7b in plug-in direction with the pusher 11 to be able to exert a force around the clamping leg 7b to open.

Below the first pressure contour 11d points the pusher 11 a slot 11e in the manner of a through opening with lateral walls. The clamping leg 7b intersects this slot 11e , The clamping leg 7b is in the slot 11e limited pivoting.

The pusher 11 also has an actuating contour 11f on. Here is this actuation contour 11f below the slot 11e at the end 11c intended.

Below the end 11c of the pusher 11 - Here below the operating contour 11f - is a movable trigger element 12 in the chamber 4 arranged. This trigger element 12 is here in an advantageous - but not mandatory - design designed as a rocker arm, the two rotatable about an axis of rotation lever arms 12a . 12b having.

The pusher 11 also has at least one lateral recess 11g off, on which a first undercut 11h (see also 4b ) is trained. This undercut 11h is a locking edge, with a corresponding locking edge 3a at the chamber 4 of the housing 3 interacts. Here is this undercut 11h at the of the clamping leg 7b opposite side of the pusher 11 educated.

By pushing in the pusher 11 in the operating opening 6 in the insertion direction X can pressure on the clamping leg 7b be exercised.

On the one hand, this serves to open the clamping point K when the conductor is inserted, around the conductor 10 to be able to remove.

Based on the position of 1a is the function of the pusher 11 but first another. As soon as the pusher 11 or its undercut 11h has been pressed so deeply that she the locking edge 3a here in the transition area from the actuating channel 6 to the chamber 4 happens, the pusher 11 - For example, by the force of the clamping spring 7 or the clamping leg 7b slightly perpendicular to the insertion direction X for the conductor 10 pushed to the side. The undercut locks 11h behind the locking edge 3a , For this it is necessary that the pusher 11 something in the case 3 or in the actuating channel limited transversely to the insertion and displaceable. This pivotability is preferably at least dimensioned such that the undercut 11h in the above-described (n) latching position is pivotable (see in particular 4a and c).

Such is the clamping spring 7 or their clamping legs 7b in an open position in the housing 3 latched or latched (see 1b and 2a ). This latching takes place by pressure on the clamping leg in Leiterereinführrichtung with the pusher 11 , which is locked to the housing in a latching position, from which is moved out. In itself, this principle is known, so from the DE 10 2008 039 232 A1 or the WO 2015180950 A1 ,

In this position can easily the ladder 10 be pushed into the area of the terminal point K.

The release of the open position or the latching position of the clamping leg 7b is possible in two different ways.

Since the latching state is not by latching an element on the free clamping edge 7d , that is the end of the locking leg 7b takes place, where the conductor is to terminals, only a very small force is required to release the clamping leg from the latching position. This makes use of the invention by not making the locking position or the latching state at the clamping edge of the clamping leg but by pressure on the clamping legs in the conductor insertion. In this case, even if the conductor 10 For example, is designed as a very thin multi-strand conductor, with only a very small force on the trigger element 12 can be exercised, the pusher 11 itself directly used to the clamping spring 7 or their clamping legs 7b to release from the detent position.

Constructively, this can be implemented in various ways, so expediently in the manner described below. Thereafter, the pusher 11 to release the locking position something in the housing 3 moved so - here laterally perpendicular to the insertion X - moved or pivoted that the undercut 11h from the latching position on the latching edge 3a is moved out and the latching of the pusher 11 on the housing 3 is solved. This is also the detent position of the locking leg 7b solved. In this way, the clamping leg can 7b the clamping spring 7 relax and the ladder 10 in the terminal K against the busbar 8th to press. This is conceivable here manually or with a tool.

Alternatively, with the conductor end of the conductor 10 in Leiteinführrichtung X a force on the trigger element 12 be exercised to the pusher 11 to release from the open position and thus from the Verraststellung. The leader 10 presses on the one of the two lever arms, namely the lever arm 12a , As a result, the trigger element rotates about its axis of rotation 12c and the other lever arm 12b acts on the actuating contour 11f of the pusher 11 one. This action in turn moves the pusher 11 , the case 3 is supported so that it is out of the catch at the locking edge 6a triggers, causing the pusher 11 is released and in the actuating channel 6 again against the insertion direction X by the force of the released clamping leg 7b something slides up.

This release of the latching position is the usual way to connect the spring-loaded terminal 1 , The previously described moving the pusher 11 is an alternative solution, if for example the conductor 10 so flexible is that with him in a particular case, no sufficient force to operate the trigger element 12 can be generated.

It is beneficial if the recess 11b on the outside of the case 4 above end 11a of the pusher 11 is so deep that with the inserted screwdriver or other tools a force on the pusher 11 can be exercised to solve this from his detention. This opens up well from the interaction of 3a . 3b such as 4a and 4c ,

The pusher 11 here still has a gradation 11i on that with a gradation 6a the actuating channel corresponds and a slot limit for the pusher 11 realized in conductor insertion direction X ( 4a ).

The 6a and 5a , b show another spring clamp. Shown is this variant in 5a in a blank and in 5b in one with a ladder 10 wired state, with in 5a and 5b a part of but in 6 illustrated housing 30 the spring terminal has been hidden. This case 30 is a bit different than in the previous ones 1 to 4 designed. There is the housing 3 have been shown open on one side, so that the clamping spring 7 and other components from the open side in the housing 3 can be mounted. The clamping spring 7 is supported in plastic.

To 5 and 6 is, however, a multi-part housing 30 provided that a housing base 31 and a housing upper part mounted thereon 32 having. The lower housing part 31 is in the manner of one here in cross-section circumferentially closed and here rectangular sleeve designed, which is open at one or two opposite end faces (in the figures up and down).

To 5 to 7 Furthermore, a metallic assembly is provided, the (simple design) clamping cage 13 has (see in particular 7a and c) in which the clamping spring 7 can be used. This is a direct support of the clamping spring 7 on the support leg 7a in the case 30 not provided here. The clamping cage 13 is in a side view at least U-shaped and has three legs 13a . 13b . 13c on. It is open on the side, which is unproblematic, because here the lower housing part 31 the leader 10 centered.

Between these thighs 13a . 13b . 13c is the clamping spring 7 set. At least one of the thighs 13a , b, c can be used for connection to an electrical assembly (not shown here), for example for connection to a plug, not shown here, or to a printed circuit board or the like. The same applies to the busbar 8th of the 1 to 4 ,

In contrast, the busbar 8th in the 1 in the side view, for example, L-shaped. This L is here by another leg 13a complemented, so that a support leg 13a forms. The support leg 13a serves to support the (for example, attached to him) support leg 7a the clamping spring 7 , whose clamping legs 7b a ladder 10 in the wired state of 5b for contacting against the thigh 13c presses, who also has current-conducting function or busbar function here or takes over the function of the busbar with.

The clamping cage 13 is with the clamping spring 7 is from an open side in the lower housing part 31 used. Such elements are preassembled to each other, so easy to assemble and are well protected in the housing base 31 ,

Preferably, the housing upper part 32 and the lower housing part 31 at corresponding locking means 14 locked together after the clamping cage 13 and the clamping spring 7 have been assembled together, as is the 7a good shows.

In the upper housing part 32 are the conductor insertion channel 5 and the actuation channel 6 for the pusher 11 educated. This is in turn in housing 30 locked so that an open position is formed, in which the nip K open and a conductor 10 in this nip K can be inserted. In that regard, the description of the 1 to 4 directed.

To release this detent position is in turn a triggering element on the one hand 12 intended. To 5 becomes this trigger element 12 from a subassembly to the assembly of elements 13 and 7 educated. This sub-assembly may be made purely of metal, purely of plastic or mixed of elements of metal and plastic. It has the trigger element here 12 and a bearing block 15 on, on which the trigger element 12 is pivotally mounted. This subassembly is on the clamping cage 13 with pre-assembled and together with this and the busbar 7 in the case 30 used.

To 5a and 5b These are two short metallic legs 13d . 13e against the Leitereinsteckrichtung x from the leg 13b of the clamping cage bent upwards, the bearing block 15 for the trigger element 12 form in the manner of a rocker, which may consist of plastic or metal and on the bearing block 15 is mounted pivotably on corresponding receptacles.

The bearing block 15 can also act as a clamp cage 13 be formed of metal or plastic separate element that on the clamping cage 13 is attachable ( 7a -C) and again shots for the trigger element 12 having. This is the difference of 7 to the 5 and 6 ,

The trigger element 12 again has two lever arms 12a . 12b on. Therefore, with the conductor end of the conductor 10 in Leiteinführrichtung X a force on the trigger element 12 be exercised to the pusher 11 to release from the open position and thus from the Verraststellung. The leader 10 presses on the one of the two lever arms, namely the lever arm 12a , As a result, the trigger element rotates 12 around its axis of rotation 12c and the other lever arm 12b acts as a triggering contour on one or two corresponding actuating contour (s) 11f of the pusher 11 one. These are designed here as arms which extend laterally of the clamping cage. Such is a safe release on two arms of the pusher 11 realizable. This action in turn moves the pusher 11 , the case 3 is resting latching, so that it is out of the catch on the locking edge 6a triggers, causing the pusher 11 is released and in the actuating channel 6 again against the insertion direction X by the force of the released clamping leg 7b something slides up.

The clamping leg 7b then press the ladder end of the ladder 10 against the thigh 13a ,

Alternatively, the pusher 11 be solved directly from the latching position, as described above.

In the 8a to 9c is shown a further embodiment of a spring-loaded terminal. This embodiment corresponds essentially to the spring terminal, as they are based on the 5a to 7c has been described.

As in the 8a to 8c is shown, this spring clamp also has a multi-part housing 40 on, with a housing lower part 41 and a housing upper part which can be placed thereon 32 , The upper housing part 32 corresponds to the basis of the 5a to 7c described upper housing part 32 ,

The lower housing part 41 is opposite to the housing lower part described above 31 formed elongated and has at its lower end a receptacle 42 for receiving an electrical contact, for example, a so-called blade contact, as it is provided in particular on boards.

In the cavity of the extended housing base 41 is a connection 16 added.

The connection 16 is there, as in 9c shown with the clamping cage 13 connected and thus serves, as described above, as a connection to a (not shown here) electrical assembly.

The connection 16 has an intermediate piece 17 on, over a thigh 17a with the thigh 13b of the clamping cage 13 connected is.

At one the clamping cage 13 opposite end of the intermediate piece 17 extend two clamping legs 18a . 18b coming from side edges of the intermediate piece 17 are bent approximately in a V-shape towards each other until they touch each other, the free ends to form a receptacle 19 away from each other are bent, so that, for example, a blade contact by the recording 42 of the housing base 41 and the recording 19 between the clamping legs 18a . 18b can be inserted and so an electrical contact between the (not shown) blade contact and the clamping cage 13 given is.

It is also conceivable recording 42 of the housing base 41 and the connection 16 that with the clamping cage 13 is electrically connected to a wire conductor or other design of a plug-in contact geometrically.

The 10a to 13 show a further possible - and advantageous - embodiment of an inventively designed spring clamp. They show another spring terminal 1 , their structure and function of the spring clamp 1 of the 1a -Federation 2a -Federation 3 largely corresponds. In this respect, the description of these figures is fully applicable to these figures.

To 10a to 13 the above-mentioned variant is realized that the free end 11a of the pusher 11 not over the outside of the case 3 protrudes outwards. It is rather within the actuating channel 6 , This applies in particular to the latching state R or the tensioned, locked state of the clamping spring 7 , This can also apply to both states, the tensioned, locked latching state or the non-tensioned, unlocked state. Then for the pusher 11 No additional space required, as it is not from the operating opening 6 protrudes. He is also well protected in this.

Next may be beneficial to this free end 11a in turn at least one actuating contour - in particular a depression 11b - For applying a tool, in particular a screwdriver to the pusher 11 be educated. This depression 11b or one of the recesses is preferably in turn dimensioned such that a screwdriver in the recess 11b is insertable ( 4a . 4c ). This depression 11b is here by a lateral approach to the pusher 11 educated. The term depression refers to the end 11a and a consideration of this end in the insertion direction X.

Again, the pusher points 11 a lateral locking edge 11h on, by moving perpendicular to the insertion direction X behind the locking edge 3a in the latching state R latched and by opposing moving transversely or perpendicular to the insertion direction X from the latching state R is releasable.

It is provided here that the pusher 11 when moving in the insertion direction X through the Spring force of the clamping spring 7 is moved transversely to the insertion in the locked position and that the pusher 11 by moving with a manually operable operating tool such as a screwdriver S in the opposite direction from the locking state R is releasable (see 13 ). This is done by turning the trigger 11 , This is indicated by the pusher 11 again at least one depression 11b for attaching an actuating tool, which is dimensioned so that with the operating tool - here the screwdriver - moving the pusher in the insertion direction X and also pivoting perpendicular to the insertion direction X can be realized.

This depression 11b is advantageous (but not mandatory) side of the pusher 11 at the end 11a educated. The screwdriver S can then with its end in this recess 11b engage and on an edge K at the end of the actuating opening 6 on the housing 3 abutment so that a defined panning is possible ( 13 , there to the left, so that the screwdriver turns around the edge K as a rotation axis). The pusher 11 is thus released from the latching and it is the detent state solved in total, en 11 and 13 demonstrate.

It may be another, preferably central depression 11b ' be provided, which is a press of the pusher 11 also parallel to or in the insertion direction 11 allows. Then the pusher 11 two of the wells 11b . 11b ' exhibit. This is advantageous, structurally simple and easy to handle. Otherwise, function and handling of this embodiment correspond to the 1a , Federation 2a , b.

The pusher 11 thus has two depressions 11b . 11b ' for applying the operating tool, which is so dimensioned / are, that in total with these two wells 11b . 11b ' with the actuating tool, a movement of the pusher in the insertion direction X and perpendicular to the insertion direction X can be realized.

It should also be mentioned that on the rocker-like release element 12 one or two stop means is provided / are. For this purpose, the rocker or the rocker arm is designed as the trigger element so that one or both of its lever arms 12a . 12b each at a twist on an abutment, such as a section of the busbar 8th or can strike at a housing edge or the like. It can so easily one or two geometric end stops 12d . 12e can be realized, the one or the stop means or one or both of the following functions realize: a protection against too wide rotation of the trigger element 12 or here the rocker arm during tightening or producing the latching state and against too wide rotation of the triggering element 12 when triggered by the conductor 10 ,

The 14a) and b) show a further possible - and advantageous - embodiment of an inventive designed spring clamp. They show another spring terminal 1 , their structure and function of the spring clamp 1 of the 1a -Federation 2a -Federation 3 largely corresponds. In this respect, the description of these figures is fully applicable to these figures.

Also after 14a) and b) a variant is realized in which the free end 11a of the pusher 11 not over the outside of the case 3 protrudes outwards. It is rather within the actuating channel 6 , This applies in particular to the latching state R or the tensioned, locked state of the clamping spring 7 , This can also apply to both states, the tensioned, locked latching state or the non-tensioned, unlocked state. Then for the pusher 11 No additional space required, as it is not from the operating opening 6 protrudes. He is also well protected in this.

The pusher 11 can turn by pushing in the actuating channel 6 , Pressure on the clamping leg 7b in Leitereinführrichtung X and a lock on the housing 3 be placed in the latching state in which the clamping leg is pivoted so that in the intended location a conductor is inserted.

Different than after 10 to 11 is the pusher 11 but in such a way that the latching state is produced with it, but can not be released again by tilting it with a screwdriver. The pusher as adjusting so eliminated.

The latching state is by pressure on the clamping leg 7b generated in the conductor insertion direction. The locking state R is also not by locking an element on the free clamping edge 7d produced by the clamping leg and is by introducing the conductor in the conductor insertion X into the housing 3 solvable.

It is therefore only an adjustment provided. This is the first and here then the only adjustment. It in turn has a movable triggering element 12 on which the end of the conductor to be contacted 11 when loosening the conductor 11 acts and with the clamping legs 7b the clamping spring 7 directly or indirectly here by acting on the pusher 11 can be released from the latching state.

LIST OF REFERENCE NUMBERS

 1

 Spring terminal

 2

 Direct plug-in connection

 3

 casing

 3a

 catch edge

 3b

 head Start

 4

 chamber

 5

 Conductor insertion channel

 6

 actuating channel

 6a

 gradation

 7

 clamping spring

 7a

 support legs

 7b

 clamping leg

 7c

 move

 7d

 clamping edge

 8th

 conductor rail

 9

 support contour

 10

 ladder

 11

 handle

11a

free end

11b, 11b '

deepening

 11c

 The End

11d

first pressing contour

 11e

slot

 11f

 actuating contour

11g

lateral depression

 11h

 undercut

 11i

 gradation

 12

 triggering element

 12a, 12b

 lever arms

 12c

 axis of rotation

12d, e

 end stops

 13

 clamping cage

13a, 13b, 13c

leg

13d, 13e

leg

 14

 latching means

 15

 bearing block

 16

 connection

 17

 connecting piece

 18a

 clamping leg

 18b

 clamping leg

 19

 admission

 30

 casing

 31

 Housing bottom

 32

 Housing top

40

casing

 41

 Housing bottom

 42

 admission

S

screwdriver

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 7997915 B2 [0003]
• EP 2768079 A1 [0004, 0009]
• DE 102008039232 A1 [0060]
• WO 2015180950 A1 [0060]

Claims (26)

Spring terminal ( 1 ), in particular direct plug-in terminal, for connecting a conductor ( 10 ), which may be formed as a flexible stranded conductor having at least the following features: a. a housing ( 3 . 30 . 40 ) with a chamber ( 4 ) and with a plug-in channel ( 5 ) for the leader in the chamber ( 4 b. a busbar ( 8th ) and / or a clamping cage ( 13 c. one in the chamber ( 4 ), acting as a compression spring clamping spring ( 7 ) for fixing the electrical conductor ( 10 ) on the busbar ( 8th ) and / or the clamping cage ( 13 ) in the region of a clamping point (K), d. the clamping spring ( 7 ) a pivotable about a pivot axis clamping legs ( 7b ), which is adjustable from a latching state (R) in which it is latched in a latching position, in a clamping state (K) in which it is unlocked from the latching state and the electrical conductor ( 10 ) against the busbar ( 8th ) or the clamping cage ( 13 ), characterized in that e. the clamping leg ( 7b ) with two different adjusting means of the locking state (R) is releasable. Spring terminal ( 1 ), in particular direct plug-in terminal, for connecting a conductor ( 10 ), which may be formed as a flexible stranded conductor having at least the following features: a. a housing ( 3 . 30 . 40 ) with a chamber ( 4 ) and with a plug-in channel ( 5 ) for the leader in the chamber ( 4 b. a busbar ( 8th ) and / or a clamping cage ( 13 c. one in the chamber ( 4 ), acting as a compression spring clamping spring ( 7 ) for fixing the electrical conductor ( 10 ) on the busbar ( 8th ) and / or the clamping cage ( 13 ) in the region of a clamping point (K), d. the clamping spring ( 7 ) a pivotable about a pivot axis clamping legs ( 7b ), which is adjustable from a latching state (R) in which it is latched in a latching position, in a clamping state (K) in which it is unlocked from the latching state and the electrical conductor ( 10 ) against the busbar ( 8th ) or the clamping cage ( 13 ) or spring clamp ( 1 ) according to claim 1, characterized in that e. the locking state (R) not by locking an element on a free clamping edge ( 7d ) of the clamping leg ( 7b ) Is generated and that the latching state by inserting the conductor in the conductor insertion in the housing is solvable. Spring terminal ( 1 ) according to claim 1 or 2, characterized in that the latching state by pressure on the clamping leg ( 11 ) is generated in the conductor insertion direction. Spring terminal ( 1 ) according to claim 1 or 2, characterized in that the first and only or the first of the two adjusting means is a movable triggering element ( 12 ) to which the end of the conductor to be contacted ( 11 ) when releasing the conductor ( 11 ) and with the clamping legs ( 7b ) of the clamping spring ( 7 ) is solvable directly or indirectly from the latching state. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the second of the two adjusting means an actuating element for moving the clamping leg ( 7b ). Spring terminal ( 1 ) according to claim 5, characterized in that the actuating element itself together with the clamping leg ( 7b ) of the clamping spring ( 7 ) in the latching state (R) can be latched and even directly from the latching state (R) is releasable, whereby the clamping leg ( 7b ) of the clamping spring ( 7 ) is releasable from the latching state (R). Spring terminal ( 1 ) according to claim 5 or 6, characterized in that the actuating element is a pusher ( 11 ) for moving the clamping leg ( 7b ) which is in an actuating channel ( 6 ) of the housing ( 3 . 30 . 40 ) in the plug-in direction (X) is displaceable and limited perpendicular to the insertion direction is movable and in the housing ( 3 . 30 . 40 ) at a clamping edge ( 3a ) of the housing ( 3 . 30 . 40 ) in the latching state (R) can be latched. Spring terminal ( 1 ) according to claim 7, characterized in that the pusher ( 11 ) a lateral locking edge ( 11h ) by moving perpendicular to the insertion direction (X) behind the locking edge ( 3a ) in the latching state (R) can be latched and by opposing movement from the latching state (R) is releasable. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the actuating channel ( 6 ) for the pusher ( 11 ) substantially parallel to the conductor insertion channel ( 5 ) runs. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the pusher ( 11 ) with a free end ( 11a ) from the actuating channel ( 6 ) projects in any case in the latching state (R). Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the pusher ( 11 ) with a free end ( 11a ) at least in the locked state (R) within the housing ( 3 ) lies. Spring terminal ( 1 ) According to one of the preceding claims, characterized in that the pusher ( 11 ) in the insertion direction (X) by the spring force of the clamping spring ( 7 ) is moved transversely to the insertion direction (X) in the locking position. Spring terminal ( 1 ) according to claim 10, characterized in that the pusher ( 11 ) By moving with a manually operable operating tool such as a screwdriver (S), in particular in the opposite direction transverse to the insertion, from the latching state (R) is releasable. Spring terminal ( 1 ) according to claim 10, characterized in that the pusher ( 11 ) by pressure of the conductor on the trigger element ( 12 ) in Leitereinsteckrichtung from the latching state (R) is releasable. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the pusher ( 11 ) at least one depression ( 11b ) or two depressions ( 11b . 11b ' ) for attaching the actuating tool, which is individually or in interaction dimensioned / are such that with the actuating tool moving the pusher ( 11 ) in the insertion direction (X) and also perpendicular to the insertion direction (X) can be realized. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the triggering element ( 12 ) as one in the housing ( 3 ) is pivotally mounted rocker arm is formed. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the triggering element ( 12 ) to release the pusher ( 11 ) is designed from the Verraststellung. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the triggering element ( 12 ) is formed integrally with the pusher. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the rocker arm has two lever arms ( 12a . 12b ), which is designed to be connected to the conductor ( 10 ) to be pivoted and of which the other is designed to the pusher ( 11 ) to release it from the locking state (X). Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the housing ( 30 . 40 ) a housing lower part ( 31 . 41 ) and a housing upper part ( 32 ) having. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the lower housing part ( 31 . 41 ) is designed in the manner of a circumferentially closed and one-sided or two-sided open sleeve. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that in the upper housing part ( 32 ) the conductor insertion channel ( 5 ) and the actuating channel ( 6 ) are formed. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that a clamping cage ( 13 ) is provided, in which the clamping spring ( 7 ) and that this clamping cage ( 13 ) and the clamping spring ( 7 ) from an open end side into the sleeve-like housing lower part ( 31 . 41 ) can be used. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that a bearing block ( 15 ) on the clamping cage ( 13 ) is formed or arranged, on which the triggering element ( 12 ) is pivotally mounted. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that the clamping cage ( 13 ), the clamping spring ( 7 ), the bearing block ( 15 ) and the trigger element ( 12 ) form a preassemblable unit, which as a whole in the housing lower part ( 31 . 41 ) can be used. Spring terminal ( 1 ) according to one of the preceding claims, characterized in that on the triggering element ( 12 ) at least one or more stop means is / are provided to provide protection against excessive rotation during tightening or producing the latching state and against excessive rotation when triggered by means of the conductor ( 10 ) to realize.

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