CN220984867U

CN220984867U - Connection terminal for connecting electrical conductors

Info

Publication number: CN220984867U
Application number: CN202321852280.XU
Authority: CN
Inventors: 谢尔盖·埃雷明
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2022-07-21
Filing date: 2023-07-14
Publication date: 2024-05-17
Anticipated expiration: 2033-07-14
Also published as: DE102022118232A1

Abstract

The utility model relates to a connection terminal (1) for connecting an electrical line (2), comprising a housing (10) having a plug opening (100) into which the electrical line (2) can be plugged for connection to the connection terminal (1). A contact element (11) for electrical contact with the electrical line (2) and a spring element (12) having a clamping leg (120) for acting on the electrical line (2) are arranged on the housing (10) in order to bring the electrical line (2) into contact with the contact element (11). The actuating element (14) can be adjusted from an unactuated position to an actuated position to adjust the clamping leg (120). The connection terminal has a trigger element (13) having a trigger leg (130), a locking leg (132) and a support section (131). The support section (131) is supported relative to the housing (10), and the trigger leg (130) and the locking leg (132) are elastically adjustable relative to the support section (131).

Description

Connection terminal for connecting electrical conductors

Technical Field

The utility model relates to a connection terminal for connecting electrical conductors according to the utility model.

Background

Such a connection terminal comprises a housing having a plug opening into which an electrical conductor can be inserted for connection to the connection terminal. Contact elements are arranged on the housing for electrical contact with the electrical conductors. Furthermore, a spring element is arranged on the housing, which spring element has a clamping leg which is designed to act on the electrical conductor when the electrical conductor is inserted into the insertion opening, in order to bring the electrical conductor into contact with the contact element. The actuating element can be actuated by a user in order to adjust the clamping leg. For this purpose, the actuating element can be moved from the unactuated position into the actuated position, for example, using a tool, in order to adjust the clamping leg in the actuated position, for example, in order to facilitate insertion of the electrical conductor into the insertion opening or in order to remove the electrical conductor from the insertion opening.

Such a connection terminal is realized by using a spring element, wherein the electrical conductor is clamped with the contact element and is thus electrically connected to the contact element in the position of connection with the contact element under the elastic spring action of the spring element.

In the connection terminal disclosed in DE 10 2019 127 464 B3, a spring element is provided in the form of a tension spring which, by means of an elastic spring action, pulls the connected electrical conductor against the associated contact element and thus establishes a clamping connection between the electrical conductor and the contact element. For this purpose, the electrical conductor is moved through the opening in the clamping leg during placement and is clamped between the clamping leg and the contact element in the connecting position.

A locking device is provided in the connection terminal of DE 10 2019 127 464 B3, by means of which the clamping leg is locked in the release position relative to the housing. When the electrical conductor is inserted, the locking device is activated and thus the locking is released, so that the clamping leg is moved out of the release position and thereby clamps the electrical conductor with the contact element. In order to transfer the clamping leg into the release position, in particular in order to be able to place the electrical conductor or to release the connected electrical conductor from the connection terminal, a tool, for example a screwdriver, can be attached to the connection terminal and a force can be applied to the clamping leg thereby.

In DE 10 2019 127 464 B3, the adjustment of the clamping legs takes place directly by means of a tool, whereas in the connection terminals known from DE 10 2019 135 203 A1 and DE 10 2020 104 140 A1, in each case an actuating element in the form of a so-called pusher (Pusher) is provided, which can be pressed into the housing of the connection terminal in order to act on the clamping legs in this way and to displace the clamping legs into their release position. The actuating elements are each preloaded against the housing springs of the connection terminals via a tensioning spring in the form of a compression spring. In this case, from DE 10 2019

135 203A1, an actuating projection is provided on the actuating element, which actuating projection hooks onto a fastening section of the holding element in the actuating position of the actuating element.

Disclosure of utility model

The object of the utility model is to provide a connection terminal which enables the clamping leg of a spring element to be held in a release position in a simple manner and to be transferred into the clamping position when an electrical conductor is inserted.

This object is solved by a connection terminal for connecting electrical conductors according to the utility model.

The connection terminal therefore has a trigger element with a trigger leg, a locking leg and a support section. The support section is supported relative to the housing, and the trigger leg and the locking leg are elastically adjustable relative to the support section. The actuating element is locked with the locking leg in the actuating position, so that the actuating element is kept in a position relative to the housing in the actuating position, wherein the locking leg can be adjusted relative to the housing by the interaction of the trigger leg with the electrical line when inserted into the insertion opening, in order to release the actuating element from the actuating position.

In the connection terminal, the electrical conductor is in electrical contact with the electrical contact element in that, when the electrical conductor is inserted into the insertion opening, the clamping leg acts on the electrical conductor and elastically biases the electrical conductor spring in the direction of contact with the contact element. In order to facilitate the insertion of the electrical conductors, the clamping leg of the spring element can be deflected elastically by actuating the actuating element in order to move the clamping leg in this way into a release position in which the space inside the housing is released in the region of the insertion opening and thus the electrical conductor can be inserted into the insertion opening in a substantially weak manner or (alternatively) the connected electrical conductor can be removed from the connection terminal in a simple manner. The actuating element can be embodied, for example, in the form of a pusher and can be pressed into the housing by a user actuating it in order to act on the clamping leg in this way and adjust it in the direction of the release position.

The actuating element, which is arranged adjustably on the housing, is locked in the actuating position relative to the housing in that the actuating element is operatively connected to the locking leg of the triggering element. In the actuating position, the actuating element is thus held in position relative to the housing, so that the clamping leg of the spring element is also held in its release position, in which the electrical line can be simply attached to the connection terminal or the connected line can be removed from the connection terminal in a substantially weak manner.

The actuating element can thus be actuated to adjust the clamping leg relative to the housing and to displace it into the release position, so that in particular the electrical conductors can be simply inserted into the insertion opening of the housing to connect the conductors to the connection terminals. The trigger element, which is arranged adjustably in relation to the housing, is used to lock with the actuating element in the actuating position, so that the actuating element is held in position in relation to the housing in the actuating position by the trigger element, i.e. the locking leg of the trigger element. The triggering element is also used to trigger the actuating element from the actuating position in order to automatically release the actuating element from the actuating position when the electrical conductor is inserted into the insertion opening, and thus to transfer the clamping leg into the clamping position in which the electrical conductor inserted into the insertion opening is in electrical contact with the contact element of the connection terminal. For this purpose, the triggering element has a triggering leg which is designed to interact with the electrical line when inserted into the insertion opening. The trigger leg is adjusted by the interaction of the electrical lines with the trigger leg, and the locking leg connected to the trigger leg is thereby deflected, so that the connection between the locking leg of the trigger element and the actuating element is released, and the actuating element is thus released from the actuating position.

The triggering element is supported relative to the housing by the support section, so that the triggering element is connected to the housing or to a component fixed in position relative to the housing, for example a contact element, by the support section. The trigger leg and the locking leg are elastically adjustable relative to the support section. If the trigger leg is adjusted by interaction with the inserted electrical line, the locking leg is also moved and the locking of the locking leg to the actuating element is released, so that the actuating element is released from the actuating position.

By means of the elastic support via the support section, the triggering element is held in the initial position when no electrical line is inserted into the insertion opening of the housing. In the initial position, the actuating element can be locked with the locking leg of the triggering element. When the actuating element is locked with the locking leg in the actuating position, the triggering element is also located in the initial position (or in a position which deviates only slightly from the initial position). The triggering element is displaced from the initial position by the interaction of the electrical lines with the triggering leg in that the triggering leg is moved and the locking leg is moved together with the triggering leg. If the electrical conductor is again removed, the triggering element returns again to its initial position, in which the actuating element can be locked with the locking leg, due to the elastic support by the support section.

After the unlocking, the actuating element can be moved back in the direction of the unactuated position, in particular automatically, preferably under spring pretension. For example, a spring pretension of the actuating element can be brought about by the clamping leg, which is deflected elastically in the actuating position and, after releasing the actuating element, acts mechanically on the actuating element in order to shift the actuating element from the actuating position in the direction of the non-actuating position. However, the pretension can also be provided by an additional pretension element, for example an additional spring.

By adjusting the triggering element relative to the housing and thus deflecting the locking leg when the electrical conductor is inserted, the connection terminal is automatically closed when the electrical conductor is inserted. A simple connection process is achieved at the same time as the electrical conductors are reliably brought into contact with the contact elements by the clamping action of the clamping legs.

In one embodiment, the housing defines a receiving space into which the electrical line can be introduced by insertion into the insertion opening. The trigger leg extends in the receiving space for interaction with the electrical conductor. In particular, the electrical line can be inserted into the insertion opening along the insertion direction, wherein the trigger leg extends in the initial position transversely to the insertion direction in the receiving space. The locking leg is adjustable relative to the housing by means of the trigger leg, so that the trigger leg moves away from the initial position when it cooperates with the electrical conductor and thereby adjusts the locking leg in order to unlock the actuating element.

The trigger leg may, for example, define a lever arm that is larger than the lever arm of the locking leg. This allows the electrical conductor to act with relatively little force on the trigger leg in order to pivot the trigger leg out of the initial position.

In one embodiment, the spring element is configured as a tension spring. In this case, the clamping leg of the spring element is designed to pull the electrical line against the contact element by means of a spring force. In this case, for example, an opening can be formed in the clamping leg, through which opening the electrical line can be passed when it is inserted into the insertion opening of the housing, in order to pull the electrical line into clamping contact with the contact element after the clamping leg is triggered from the release position.

Alternatively, the spring element may be configured as a compression spring. In this case, the clamping leg is designed to press the electrical line against the contact element by means of a spring force. When inserted into the insertion opening, the electrical conductor reaches into the space between the clamping leg and the contact element, wherein, after the clamping leg is triggered from the release position, the clamping leg acts on the electrical conductor and presses the electrical conductor against the contact element.

In one embodiment, the clamping leg can be adjusted elastically relative to the housing by actuating the actuating element to a release position and in the release position is held relative to the housing by the actuating element which is locked in the actuating position. The clamping leg is thus locked in the release position relative to the housing, so that the clamping leg remains in the release position after the actuating element has been actuated.

The spring element can, for example, have a support leg by means of which the spring element is supported on the housing and held in position on the housing. The clamping leg can be elastically deflected relative to the support leg, wherein in the release position the clamping leg is deflected such that the spring element is elastically tensioned and the clamping leg is moved out of the release position in an elastically pretensioned manner after being released from the release position.

In one embodiment, the actuating element is mounted on the housing in a linearly movable manner and has an actuating section for actuation by a user and an actuating section for acting on the clamping leg. For example, by making it possible for a user to act on the actuating section manually via a tool, for example a screwdriver, or alternatively, the actuating section can be accessed from outside the housing, while the actuating section is operatively connected to the clamping leg of the spring element. The actuating element is thus adjusted to apply an actuating force to the clamping leg via the actuating section, so that the clamping leg is moved in the direction of the release position, in particular when the actuating element is moved from the unactuated position into the actuated position.

In one embodiment, the actuating element has a locking section for locking with a locking leg of the triggering element in the actuating position. The locking section can be formed, for example, as a rigid projection on the body of the actuating element and engages with a locking leg, for example an opening on the locking leg, in the actuating position of the actuating element, so that the actuating element is thereby locked with the locking leg. In the actuating position, the actuating element is therefore held in position relative to the housing, wherein the clamping leg is also held in its release position via the actuating element.

In one embodiment, the actuating element has a first stop element which, in the actuating position, rests against a second stop element which is fixed in position relative to the housing and thus defines the position of the actuating element relative to the housing in the actuating position. In particular, the actuating element can be adjusted relative to the housing in the actuating direction until the stop element of the actuating element comes into contact with the stop element on the housing side and cannot be moved further in the actuating direction. The actuating element thus assumes a defined position relative to the housing in the actuating position and is locked relative to the housing here by the locking leg of the triggering element.

In one embodiment, the second stop element is formed on the contact element. In this way, the actuating element rests against the contact element in the actuating position and thus assumes a defined position relative to the housing.

The trigger element is supported relative to the housing via a support section. The support section can be held in a rotationally fixed manner relative to the housing, thereby fixing the triggering element to the housing. The trigger leg can be elastically displaced together with the locking leg relative to the support section in order to release the locking of the actuating element to the locking leg, wherein the trigger element returns to its initial position due to the elastic support by the support section when the electrical line is removed from the connection terminal and thus no longer acts on the trigger element.

In one embodiment, the support section is supported on the contact element. The support section is thus connected to a contact element which is fixed in position to the housing. For example, the support section can surround the edge section of the contact element and thus be fastened to the edge section of the contact element in a rotationally fixed manner. For this purpose, the support section can be formed, for example, as a curved web, which surrounds the edge section of the contact element and thus secures the triggering element to the contact element in a rotationally fixed manner.

In one embodiment, the triggering element is formed by an element of a spring, for example a leg spring. The triggering element is thus formed integrally and in one piece from a resilient spring material, for example spring steel. In particular, the support section, the locking leg and the trigger leg are integrally formed by a single, one-piece element, for example as a metal stamping bend.

Drawings

The idea underlying the utility model is explained in detail below with the aid of an embodiment shown in the drawings. The drawings show:

fig. 1A shows a view of an embodiment of a connection terminal, with the actuating element in an unactuated position;

FIG. 1B shows a side view of the arrangement according to FIG. 1A;

fig. 2A shows a view of the connection terminal in the actuating position of the actuating element;

FIG. 2B shows a side view of the arrangement according to FIG. 2A;

FIG. 3A shows a view of the connection terminal when the electrical lead is co-acting with the trigger element;

FIG. 3B shows a side view of the arrangement according to FIG. 3A;

FIG. 3C shows another view of the connection terminal when the electrical lead is co-acting with the trigger element;

Fig. 4 shows a side view of the connection terminal after insertion of the electrical lead and release of the actuating element from the actuating position;

Fig. 5A to 5C show separate views of the spring element of the connection terminal;

fig. 6A to 6D show separate views of the actuating element of the connection terminal;

fig. 7A to 7E show separate views of the contact element of the connection terminal; and

Fig. 8A to 8E show separate views of the trigger element of the connection terminal.

Detailed Description

Fig. 1A, 1B to 4 show an exemplary embodiment of a connection terminal 1, which connection terminal 1 forms a housing 10 in which a plug opening 100 for inserting an electrical conductor 2 in a plug-in direction E is formed.

The housing 10 defines a receiving space 101 into which the electrical conductor 2 is introduced with the uninsulated conductor end 20 when the electrical conductor 2 is inserted into the insertion opening 100 in the insertion direction E. In the connection position, the uninsulated conductor end 20 of the conductor wire 2 is located within the receiving space 101 and is in electrical contact with the contact element 11 in the form of a current strip via the clamping leg 120 of the spring element 12, so that the conductor wire 2 is electrically connected to the connection terminal 1.

The spring element 12 shown in the individual views in fig. 5A to 5C has a support leg 121, which in the illustrated embodiment is supported on a curved surface section 112 of the contact element 11 relative to the wall 113, so that the spring element 12 is fastened by means of it to the housing 10 and relative to the housing 10. The clamping leg 120 can be elastically deflected relative to the support leg 121, in particular in such a way that the clamping leg 120 in the clamped position shown in fig. 4 acts clampingly on the electrical conductor 2 connected to the connection terminal 1 and presses the electrical conductor into contact with the surface section 110 of the contact element 11 under elastic pretension and thus brings the electrical conductor 2 into electrical contact with the contact element 11 via its conductor end 20.

In the exemplary embodiment shown, an actuating element 14 is mounted on the housing 10 so as to be movable in the actuating direction B. The actuating element 14 is accommodated movably in the actuating opening 102 of the housing 10 and can be moved in a linear guide along the actuating direction B relative to the housing 10 in order to thereby act on the clamping leg 120 of the spring element 12 and to adjust it between the clamping position and the release position.

The actuating element 14 shown in fig. 6A to 6D in separate views has an actuating section 141 which can be accessed from outside the housing 10 via the actuating opening 102 and can thus be actuated by a user, for example, using a tool. The actuating section 141 is accommodated in the actuating opening 102 and is guided displaceably in the actuating opening 102.

The actuating element 14 is in operative connection with the clamping leg 120 of the spring element 12. For this purpose, the actuating element 14 acts with the action section 144 on the clamping leg 120 in order to adjust the latter in the receiving space 101 of the housing 10 in the case of elastic deflection relative to the support leg 121. In the actuating position of the actuating element 14 shown in fig. 2A, 2B, the clamping leg 120 is held by the actuating element 14 in a release position in which a space within the housing 10 that is aligned with the insertion opening 100 is released, so that the electrical conductor 2 can be inserted into the housing 10 in a substantially weak manner, as can be seen from fig. 3A to 3C.

The connection terminal 1 has a triggering element 13 shown in fig. 8A to 8E, which is supported on an edge section 111 of the contact element 11, which is bent away from the surface section 112, via a support section 131 in the form of a bent web. The support section 131 surrounds the edge section 111 of the contact element 11 and is thereby fixed in a rotationally fixed manner to the contact element 11 and thus to the housing 10.

The triggering element 13 is thus held relative to the housing 10 by the support section 131.

The triggering element 13 has a triggering leg 130 which, in the initial position (see fig. 1A, 1B and 2A, 2B), extends at least approximately transversely to the insertion direction E and projects into the housing 10 in a region of the receiving space 101 which is aligned with the insertion opening 100, so that, when the electrical conductor 2 is inserted, the electrical conductor with the conductor end 20 strikes the triggering leg 130 and thus acts on the triggering element 13. The support section 131 is cut out of the trigger leg 130 as a tab, so that the trigger leg 130 can be elastically deflected relative to the support section 131.

Furthermore, the triggering element 13, which is formed as an integrated leg spring, for example, as a stamped and bent part, has a locking leg 132 which is connected to the triggering leg 130 by a connecting section 134 and extends transversely to the triggering leg 130. The connecting section 134 surrounds the edge section 111 of the contact element 11, as can be seen, for example, from fig. 1B, so that the locking leg 132 is directed from the edge section 111 counter to the actuating direction B toward the actuating element 14.

An opening 133 is formed on the locking leg 132, which serves as a locking opening for interaction with a locking section 143 of the actuating element 14. In the actuating position of the actuating element 14, the actuating element 14 is locked with the locking leg 132 in that the locking section 143 engages in the opening 133 on the locking leg 132, as can be seen in the transition from fig. 1A, 1B to fig. 2A, 2B. In the actuating position, the actuating element 14 is thus held in position relative to the housing 10 by the triggering element 13 in that the locking section 143, which is shaped as a rigid projection on the body of the actuating element 14, engages in a form-fitting manner with the opening 133 on the locking leg 132.

Since the trigger leg 130 is connected to the locking leg 132 via the connecting section 134, the locking leg 132 can be pivoted about the edge section 111 by actuating the trigger leg 130, in order to thereby cancel the locking between the actuating element 14 and the locking leg 132.

The triggering element 13 serves to interact with the electrical line 2 inserted into the insertion opening 100 in order to automatically connect the electrical line 2 to the connection terminal 1 when the clamping leg 120 is triggered. If the electrical line 2 is inserted into the insertion opening 100 as can be seen from fig. 3A to 3C, the line 2 acts with one conductor end 20 on the trigger leg 130 and deflects it out of the initial, unloaded position shown in fig. 3A to 3C, as can be seen from fig. 4. The locking leg 132 is thereby adjusted together with the trigger leg 130, wherein the support section 131 is held in position on the contact element 11 and the trigger leg 130 together with the locking leg 132 is elastically deflected relative to the support section 131. The locking between the actuating element 14 and the locking leg 132 is thus dispensed with, so that the actuating element 14 is released and the clamping leg 120 of the spring element 12 can thus be moved out of the release position for clamping with the electrical conductor 2.

The trigger leg 130 defines a lever arm that is greater than the lever arm of the locking leg 132 for locking with the locking section 143 of the operating element 14. A force conversion is obtained in which the electrical conductor 2 with its uninsulated conductor end 20 can be applied with relatively little force to the trigger leg 130 in order to pivot the latter out of the initial position shown in fig. 1A, 1B and 2A, 2B. In this case, the locking legs 132 are pivoted together in a force-switching manner, so that the locking between the locking legs 132 and the locking sections 143 of the actuating element 14 is dispensed with.

By dimensioning the trigger leg 130 and the locking leg 132, the force conversion can be adjusted in a manner suitable for reliable triggering upon insertion of the electrical conductor 2.

The following working modes are generated:

If the actuating element 14 is actuated in the actuating direction B and is thus pushed into the housing 10, the actuating element 14 brings the clamping leg 120 of the spring element 12 via the actuating section 144 and thus adjusts the clamping leg 120 into the release position shown in fig. 2A, 2B. In the release position, the clamping leg 120 releases the region of the receiving space 101 aligned with the plug opening 100 in the plug-in direction E, so that the electrical conductor 2 can be inserted into the plug opening 100 unimpeded by the clamping leg 120 and can thus be connected to the connection terminal 1 in a substantially weak manner.

By being pushed into the housing 10 in the actuating direction B, the actuating element 14 reaches the actuating position shown in fig. 2A, 2B, in which the actuating element 14 is locked with the locking leg 132 of the triggering element 13 via the locking section 143. For this purpose, the locking section 143 engages in the opening 133 in the locking leg 132 and is thus held in a positive-locking manner on the locking leg 132.

The contact element 11 is formed with a stop element 114 on the wall 113, the actuating element 14 abutting the stop element 114 via a stop element 142 when the actuating element 14 is moved into the actuating position according to fig. 2A, 2B. The actuating position is thus defined by the stop elements 114, 142 stopping against one another. The actuating element 14 cannot be adjusted further in the actuating direction B relative to the housing 10 beyond the actuating position according to fig. 2A, 2B.

The connection terminal 1 can also be supplied by the manufacturer in a manipulated, tensioned position according to fig. 2A, 2B.

If the electrical conductor 2 is inserted with the uninsulated conductor end 20 into the insertion opening 100 and is then introduced into the receiving space 101 in the insertion direction E, while the actuating element 14 is in the actuating position and the clamping leg 120 is in the release position, the conductor 2 abuts against the triggering leg 130 of the triggering element 13 and thus the triggering leg 130 pivots within the housing 10. As a result, the locking leg 132 is adjusted relative to the locking section 143 of the actuating element 14, so that the locking leg 132 releases the locking section 143, as is shown in fig. 4. The actuating element 14 is thus released from the actuating position.

After the unlocking, the actuating element 14 comes out of the actuating position due to the elastic pretensioning on the clamping leg 120 and returns counter to the actuating direction B, as can be seen from fig. 4. The clamping leg 120 comes into clamping contact with the electrical conductor 2 and thereby presses the conductor end 20 into contact with the contact element 11, so that the electrical conductor 2 is electrically connected to the connection terminal 1 and is also mechanically locked.

Fig. 7A to 7E show separate views of the contact element 11. The contact element 11 has a surface section 110 against which the conductor end 12 is pressed by the clamping action of the clamping leg 120 in the clamping position according to fig. 4, so that the conductor wire 2 is thereby brought into contact with the contact element 11. The face section 110 is curved relative to the wall 113, with the face section 112 also being curved relative to the wall at the edge facing away from the face section 110. The stop element 114 is formed on the wall 113 in the form of a protruding tab. The edge section 111 is bent relative to the face section 112 and carries a support section 131 of the triggering element 13.

Since the actuating element 14 is automatically adjusted out of the actuating position after releasing the locking, the user can safely and reliably recognize that the connection terminal 1 has been triggered and that the electrical conductor 2 is thus connected to the connection terminal 1. Thus reducing the risk of incorrect operation.

If the electrical conductor 2 is to be released from the connection position shown in fig. 4 and is again removed from the connection terminal 1, the actuating element 14 can again be moved into the actuating position according to fig. 2A, 2B, so that the clamping leg 120 does not bear against the conductor 2. Thereby, the wire 2 can be taken out of the connection terminal 1 in a substantially weak manner.

As a result of the elastic support by the support section 131, the triggering element 13 returns here to its initial position according to fig. 2A, 2B, so that the conductor 2 can be connected again to the connection terminal 1.

The idea on which the utility model is based is not limited to the embodiments described above but can also be implemented in other ways.

The actuating element can be preloaded in the direction of the non-actuated position by the action of the clamping legs of the spring element. However, it is also conceivable to provide an additional pretensioning element which pretensions the actuating element against the actuating direction in the direction of the unactuated position relative to the housing. Such a pretensioning element may be configured, for example, by a pressure spring or other mechanical spring.

Description of the reference numerals

1. Connection terminal

10. Shell body

100. Plug-in opening

101. Accommodation space

102. Manipulation opening

11. Contact element (Current strip)

110. Face section

111. Edge section

112. Face section

113. Wall with a wall body

114. Stop element

12. Clamping spring

120. Clamping leg

121. Supporting leg

13. Trigger element

130. Trigger leg

131. Support section

132. Locking leg

133. An opening

134. Connection section

14. Actuating element

141. Steering section

142. Stop element

143. Locking section

144. Action section

2. Conducting wire

20. Conductor end

B steering direction

E direction of insertion

Claims

1. Connection terminal (1) for connecting an electrical conductor (2), having a housing (10) with a plug opening (100) into which the electrical conductor (2) can be plugged for connection to the connection terminal (1), having a contact element (11) arranged on the housing (10) for electrical contact with the electrical conductor (2), having a spring element (12) arranged on the housing (10) with a clamping leg (120) for acting on the electrical conductor (2) in order to bring the electrical conductor (2) into contact with the contact element (11), and having an actuating element (14) arranged in an adjustable manner on the housing (10) from an unactuated position to an actuated position for adjusting the clamping leg (120), characterized in that the connection terminal has a triggering element (13) with a triggering leg (130), a locking leg (132) and a support section (131), wherein the support section (12) is supported relative to the housing (10) and the triggering leg (130) and the locking leg (132) can be locked in an actuated position relative to the support section (131) in which the locking leg (131) can be adjusted in an actuated position, the actuating element (14) is thereby held in a position relative to the housing (10) in the actuating position, wherein the locking leg (132) can be adjusted relative to the housing (10) by the interaction of the trigger leg (130) with the electrical line (2) when the plug opening (100) is inserted, in order to release the actuating element (14) from the actuating position.

2. Connection terminal (1) according to claim 1, characterized in that the housing (10) defines a receiving space (101) into which an electrical conductor (2) can be introduced by insertion into the insertion opening (100), wherein the trigger leg (130) extends in the receiving space (101) for interaction with the electrical conductor (2).

3. Connection terminal (1) according to claim 2, characterized in that the electrical line (2) can be inserted into the insertion opening (100) along an insertion direction (E), wherein the trigger leg (130) extends in the receiving space (101) transversely to the insertion direction (E) in an initial position.

4. The connection terminal (1) according to claim 1, characterized in that the trigger leg (130) can be adjusted from an initial position by co-action with the electrical conductor (2) to release the actuating element (14) from an actuating position.

5. The connection terminal (1) according to claim 1, characterized in that the clamping leg (120) is configured for pushing or pulling the electrical conductor (2) against the contact element (11) by means of a spring force.

6. The connection terminal (1) according to claim 1, characterized in that the clamping leg (120) can be adjusted elastically relative to the housing (10) by actuating the actuating element (14) to a release position, and in the release position is held relative to the housing (10) by the actuating element (14) being latched in the actuating position.

7. The connection terminal (1) according to claim 1, characterized in that the spring element (12) has a support leg (121) which is supported relative to the housing (10) and relative to which the clamping leg (120) can be elastically deflected.

8. The connection terminal (1) according to claim 1, characterized in that the actuating element (14) is mounted on the housing (10) in a linearly movable manner and has an actuating section (141) for actuation by a user and an actuating section (144) for acting on the clamping leg (120).

9. The connection terminal (1) according to claim 1, characterized in that the actuating element (14) has a locking section (143) for locking with a locking leg (132) of the triggering element (13) in the actuating position.

10. The connection terminal (1) according to claim 1, characterized in that the actuating element (14) has a first stop element (142) for stopping on a second stop element (114) fixed in position relative to the housing (10).

11. Connection terminal (1) according to claim 10, characterized in that the second stop element (114) is formed on the contact element (11).

12. The connection terminal (1) according to claim 1, characterized in that the support section (131) is supported on the contact element (11).

13. The connection terminal (1) according to claim 12, characterized in that the support section (131) surrounds an edge section (111) of the contact element (11).

14. The connection terminal (1) according to claim 1, characterized in that the support section (131) is formed by a tab bent relative to the trigger leg (130).

15. Connection terminal (1) according to claim 1, characterized in that the triggering element (13) is constituted by an element of an elastic spring.