Connection arrangement and connection terminal

Abstract

The invention relates to a connection arrangement (100) for connecting an electrical conductor, comprising a housing (110) having a conductor insertion opening (111), a current bar (112) arranged in the housing (110), a clamping spring (113) arranged in the housing (110), which clamping spring has a holding leg (116) and a clamping leg (117), wherein the clamping leg (117) can be transferred into a clamped position and into an open position, an actuating element (139) by means of which the clamping leg (117) can be transferred from the clamped position into the open position upon movement of the actuating element (139) in an actuating direction (B), and a triggering element (119) which, in the open position of the clamping leg (117), is engaged with the clamping leg (117) in such a way that the clamping leg (117) can be released in the open position by means of the triggering element (119). and which can be pivoted in such a waythat when the conductor to be connected is inserted into the conductor insertion opening (111) in the insertion direction (E), the triggering element (119) can be actuated in such a way that the clamping leg (117) is disengaged from the triggering element (119) and pivots from the open position into the clamping position, wherein the actuating element (139) has an actuating arm (142), wherein if the triggering element (119) is not triggered by the conductor to be connected, the actuating arm (142) of the actuating element (139) cooperates with the triggering element (119) in such a way that the clamping leg (117) is disengaged from the triggering element (119) and pivots from the open position into the clamping position.

Description

[0001] The invention relates to a connection arrangement for connecting an electrical conductor. Furthermore, the invention relates to a connection terminal, in particular a terminal block, with such a connection arrangement.

[0002] Such connection arrangements usually have a clamping spring designed as a leg spring, which has a holding leg and a clamping leg, wherein a conductor inserted into the connection arrangement can be clamped against the current bar by means of the clamping leg of the clamping spring. If flexible conductors in particular are clamped, the clamping spring must be moved into an open position by means of an actuating element before the conductor is inserted and thus actuated in order to pivot the clamping spring or the clamping leg away from the current bar so that the conductor can be inserted into the space between the current bar and the clamping spring. Only with rigid and therefore stable conductors can the conductor apply sufficient force to the clamping spring or the clamping leg of the clamping spring to pivot the clamping leg away from the current bar without the user having to actuate the actuating element.With flexible conductors, the user must first pivot the clamping spring away from the current bar by actuating the actuating element so that the flexible conductor can be inserted. To clamp the inserted conductor, the user must manually actuate the actuating element a second time to move the clamping spring from the open position to the clamped position. Manually actuating the actuating element makes installation or connecting the conductor more difficult for the user, as it is cumbersome and therefore time-consuming.

[0003] The invention is based on the object of providing a connection arrangement in which the connection of, in particular, flexible conductors can be simplified.

[0004] The object is achieved according to the invention with the features of the independent claims. Expedient embodiments and advantageous further developments of the invention are specified in the subclaims.

[0005] The connection arrangement according to the invention comprises a housing having a conductor insertion opening, a current bar arranged in the housing, a clamping spring arranged in the housing, which has a holding leg and a clamping leg, wherein the clamping leg can be transferred into a clamping position and into an open position, and an actuating element by means of which the clamping leg can be transferred from the clamping position into the open position.In addition, the connection arrangement has a trigger element which, in the open position of the clamping leg, engages with the clamping leg such that the clamping leg is held in the open position by means of the trigger element, and which is pivotable such that when the conductor to be connected is inserted into the conductor insertion opening in the insertion direction, the trigger element can be actuated such that the clamping leg disengages from the trigger element and pivots from the open position into the clamping position. The actuating element has an actuating arm, wherein, if the trigger element is not triggered by the conductor to be connected, the actuating arm of the actuating element interacts with the trigger element such that the clamping leg disengages from the trigger element and pivots from the open position into the clamping position.

[0006] By means of the connection arrangement according to the invention, a flexible conductor can now also be connected easily and securely and clamped against the current bar. The clamping spring is preferably designed as a leg spring which has a holding leg and a clamping leg which is designed to be pivotable relative to the holding leg. By a pivoting movement of the clamping leg of the clamping spring, this can be moved into an open position, in which the clamping leg is arranged at a distance from the current bar, in particular at a distance from a clamping section of the current bar, and a conductor to be connected can be inserted into or removed from an intermediate space or conductor connection space formed thereby between the current bar or the clamping section of the current bar and the clamping leg, and into a clamping position, in which the clamping leg is attached to the current bar orthe clamping section of the current bar or on the connected conductor in order to clamp the conductor against the current bar or the wall of the current bar passage. The transfer of the clamping leg, in particular from the clamped position to the open position, takes place by means of an actuating element. The actuating element is preferably guided so as to be linearly movable in the housing. As soon as the clamping leg has reached the open position by actuation by means of the actuating element, the clamping leg engages with the release element so that the clamping leg can be held in the open position via the release element and thus an unintentional pivoting back of the clamping leg from the open position to the clamped position can be prevented.By pivoting the release element, the clamping leg can be disengaged from the release element in order to pivot back into the clamping position and clamp a conductor to be connected against the current bar. The pivoting movement of the release element can be triggered by the conductor to be connected itself; when the conductor to be connected is inserted through the conductor insertion opening into the conductor connection compartment, the conductor hits the release element, thereby triggering a tilting or pivoting movement of the release element. The tilting or pivoting movement of the release element can then release the operative connection between the release element and the clamping leg of the clamping spring, as the release element releases the clamping leg, so that the clamping leg can pivot independently in the direction of the conductor to be connected due to its spring force.In the case of ladders with a very small cross-section, it may happen that insufficient pressure can be applied to the triggering element by means of the conductor to trigger the triggering element and thus pivot it. According to the invention, it is therefore provided that a type of emergency triggering of the triggering element is possible using the actuating element if triggering by the conductor itself is not possible. For this purpose, the actuating element has an actuating arm which interacts with the triggering element to trigger the triggering element if the conductor does not trigger it. Using the actuating arm of the actuating element, tilting or pivoting can thus be prevented.The pivoting movement of the release element should be such that the clamping leg of the clamping spring can be disengaged from the release element and can thus pivot from the open position into the clamping position in order to clamp or connect the conductor inserted into the conductor connection compartment against the clamping section of the current bar. This allows conductors to be connected reliably and safely, regardless of their conductor cross-section.

[0007] Preferably, the trigger element can engage with the clamping leg via a locking connection in the open position of the clamping leg, so that the trigger element can be locked to the clamping leg in the open position. The locking connection enables the trigger element to be easily and simply engaged and disengaged from the clamping leg.

[0008] To form the locking mechanism, the clamping leg of the clamping spring can have at least one locking arm, which can be locked to the trigger element in the open position. The at least one locking arm can extend away from the main extension plane of the clamping leg of the clamping spring, in particular in the direction of the holding leg of the clamping spring. The locking arm can be punched out of the material of the clamping leg and bent into its shape. The locking arm can have the form of a tab, in particular a spring tab. The locking arm can form a type of bent locking hook, which is hooked onto the trigger element in the open position.

[0009] The trigger element can preferably be pivotally mounted on the retaining leg of the clamping spring. The trigger element can thus be mounted against the metal of the clamping spring and does not have to be mounted on the plastic of the housing. The trigger element is preferably designed as a separate component from the clamping spring. The trigger element can be detachably attached to the retaining leg of the clamping spring, in particular detachably suspended from the retaining leg of the clamping spring. The trigger element can then be pivoted or tilted relative to the retaining leg of the clamping spring, which is preferably positioned stationary in the housing. The retaining leg of the clamping spring can have a first leg and a second leg. The first leg can serve to support the retaining leg and thus the clamping spring in the housing. The retaining leg can connect to the curved section of the clamping spring via the first leg.The first leg can then be arranged between the second leg and the curved section. The second leg of the retaining leg can extend at an angle, in particular at a 90° angle, from the first leg. The trigger element can be mounted on the second leg of the retaining leg, in particular on a free end section of the second leg of the retaining leg. The free end section can be bent toward the clamping leg, so that the second leg of the retaining leg can have an L-shape.

[0010] The trigger element can be designed as a rocker. The trigger element can be mounted in the form of a rocker, preferably releasably, on the retaining leg of the clamping spring.

[0011] To form the rocker, the trigger element can have a first leg and a second leg connected to the first leg via a pivot bearing. The first leg can have a pressure surface via which the trigger element can be actuated with the conductor. The second leg can interact with the actuating arm of the actuating element. The pivot bearing can form the pivot axis about which the trigger element can be pivoted. In the area of ​​its pivot bearing, the trigger element can be bent in a V-shape or U-shape. The pivot bearing can also be the area of ​​the trigger element in which the clamping leg is latched with its at least one latching arm in the open position and is thus held on the trigger element. The first leg and / or the second leg are preferably each straight. The trigger element can be made of a metal sheet.Alternatively, it is also possible for the triggering element to be made of a plastic material. The two legs of the triggering element each extend away from the pivot bearing. Both legs serve to trigger the triggering element, with the first leg being able to trigger the triggering element with the conductor to be connected, and the second leg being able to trigger the triggering element with the actuating arm of the actuating element. A twisting or tilting movement of the triggering element about the pivot bearing of the triggering element can be achieved both by the conductor to be connected when the first leg is actuated and by the actuating element when the second leg is actuated. The pressure surface can be formed on the first leg of the triggering element in such a way that it points in the direction of the conductor insertion opening. The pressure surface can delimit the conductor connection space downwards in the direction of insertion.The conductor to be connected may strike the pressure surface when inserted into the conductor connection space, causing the release element to pivot in the insertion direction to disengage from the clamping leg, so that the clamping leg can be released and pivot in the direction of the conductor to be connected to clamp it against the current bar in the clamping position.

[0012] The trigger element can be pivotably or tiltably mounted on the retaining leg of the clamping spring via its pivot bearing. The trigger element can rest on the retaining leg with its pivot bearing, in particular on the free end section of the second leg of the retaining leg. The free end section of the second leg of the retaining leg can then form the bearing point for the pivot bearing and thus for the trigger element.

[0013] A locking lug can be formed on the second leg of the trigger element, which can interact with the actuating arm of the actuating element. The locking lug can be hooked onto the actuating arm of the actuating element during emergency release by the actuating element, or the actuating arm can then at least partially engage around or hook under the locking lug. Via the locking lug, the actuating arm of the actuating element can tilt the second leg of the trigger element against the actuating direction of the actuating element in order to trigger the trigger element and thus move the clamping leg out of the open position. The actuating arm can apply a tensile force against the actuating direction to the trigger element or the second leg of the trigger element via the locking lug. The locking lug can be formed, in particular molded, on a longitudinal edge surface of the second leg of the trigger element.The locking lug can extend within the main extension plane of the second leg of the trigger element at a right angle from the longitudinal edge surface of the second leg of the trigger element. In the area of ​​the locking lug, the second leg of the trigger element can therefore have a greater width than in the remaining area of ​​the second leg. The actuating arm can have a rear grip with which the actuating element can hook behind the locking lug in order to apply a tensile force to the trigger element. The rear grip can extend transversely to the main extension plane of the actuating arm. The rear grip can be formed on a free end section of the actuating arm, so that the actuating arm can have an L-shape due to the molded rear grip.

[0014] The actuating arm can be configured on the actuating element such that the actuating arm extends in the actuating direction of the actuating element and the actuating arm can laterally overlap an actuating section of the actuating element for actuating the clamping leg of the clamping spring. The actuating arm can preferably extend linearly in the actuating direction of the actuating element. The actuating arm can thus form an extension of the actuating element in the actuating direction. To ensure that the actuating arm does not interfere with the actual actuation of the actuating element on the clamping leg via the actuating section of the actuating element, the actuating arm can be guided laterally past the actuating section and thus laterally overlap the actuating section. The actuating arm can essentially have a web shape.

[0015] To achieve the most space-saving design possible, a recess can be formed on the current bar, into which the actuating arm can be inserted when the clamping leg of the clamping spring is in the open position. The second leg of the trigger element can then be arranged with its locking lug as close as possible to the current bar, in particular to the bearing section of the current bar, without restricting the function of the actuating arm of the actuating element.

[0016] To simplify handling, particularly of the emergency release, for a user, the actuating element can have a release section on its upper side, via which the actuating element can be pulled manually or by means of a tool in the opposite direction to the actuating direction. The release section preferably protrudes from the upper side of the actuating element. A pulling force can be easily applied to the actuating element via the release section, either manually or by means of a tool, in order to trigger the release element.

[0017] The release section can preferably have at least one tool engagement section. A tool, such as a screwdriver, can then securely engage in the tool engagement section to pull the actuating element against the actuating direction. The at least one tool engagement section can be designed in the form of a tab. To prevent the tool from tilting, the release section can preferably have two tool engagement sections into which the tool can then engage simultaneously. Both tool engagement sections can then, for example, each be designed in the form of a tab so that they can each form a rear grip for receiving the tool. The two tool engagement sections are preferably arranged off-center on the upper side of the actuating element so that they do not interfere with actuation of the actuating element in the actuating direction using a tool.

[0018] The object according to the invention can further be achieved by means of a connection terminal, in particular a series terminal, which can have at least one connection arrangement designed and developed as described above.

[0019] The connection arrangement designed and further developed as described above can be part of a connection terminal, which can be designed, for example, as a series terminal or printed circuit board terminal. The connection arrangement can also be used in a connector.

[0020] In particular, when used in a terminal block which can be snapped onto a mounting rail, two or more of the connection arrangements designed and further developed as described above can preferably be used.

[0021] The invention is described in more detail below with reference to the accompanying drawings using a preferred embodiment.

[0022] It shows Fig. 1 a schematic sectional view of a connection arrangement according to the invention with the clamping leg of the clamping spring in the open position, Fig. 2 a schematic view of the Fig. 1 shown connection arrangement in a perspective view, Fig. 3 a schematic sectional view of the in Fig. 1 shown connection arrangement when triggering the trigger element via the actuating element, and Fig. 4 a schematic representation of the Fig. 3 shown connection arrangement in a perspective view.

[0023] In Fig. 1 to 4A connection arrangement 100 according to the invention is shown. The connection arrangement 100 has a housing 110. The housing 110 can be made of an insulating material, such as a plastic material. The housing 110 has a conductor insertion opening 111, through which a conductor (not shown here) to be connected can be inserted into the housing 110 in the insertion direction E in order to be connected to the connection arrangement 100.

[0024] A current bar 112 and a clamping spring 113 are positioned in the housing 110. A conductor inserted into the housing 110 can be clamped against the current bar 110 and thus connected by means of the clamping spring 113. The current bar 110 has a clamping section 114 against which the conductor to be connected can be clamped and thus connected by means of the clamping spring 113. Furthermore, the current bar 112 has a bearing section 115, which extends at a 90° angle to the clamping section 114.

[0025] The clamping spring 113 is designed as a leg spring. The clamping spring 113 has a holding leg 116 and a clamping leg 117. The clamping leg 117 is pivotable relative to the holding leg 116 in order to move the clamping leg 117 into a clamped position and into an open position. The clamping leg 117 has a clamping edge 118 at its free end section, which clamps the conductor L to be connected against the clamping section 114 of the current bar 112 when the clamping leg 117 is in the clamped position.

[0026] Viewed in the insertion direction E of the conductor L, a conductor connection space formed between the clamping section 114 of the current bar 112 and the clamping leg 117 of the clamping spring 113 is delimited at the bottom by a release element 119. The release element 119 is detachably connected to the clamping spring 113, in particular pivotably or tiltably mounted on the clamping spring 113.

[0027] The trigger element 119 has a pressure surface 120 pointing toward the conductor insertion opening 111, against which a conductor L can strike when inserted into the conductor connection compartment. If the conductor L strikes the pressure surface 120, a pivoting or tilting movement V of the trigger element 119 occurs in the insertion direction E.

[0028] The trigger element 119 can be stamped from a metal sheet and bent into the appropriate shape. The trigger element 119 can thus be a stamped and bent part. However, it is also possible for the trigger element 119 to be made of a plastic material.

[0029] The trigger element 119 is designed in the form of a rocker. The trigger element 119 has a first leg 121 and a second leg 122, wherein the first leg 121 is connected to the second leg 122 via a pivot bearing 123. In the embodiment shown here, the trigger element 119 is designed essentially symmetrically, so that the first leg 121 and the second leg 122 have approximately the same length and thus extend the same distance from the pivot bearing 123. The pivot bearing 123 is also designed centrally along the length of the trigger element 119. The first leg 121 and the second leg 122 are each straight. However, it is also possible for the first leg 121 and the second leg 122 to be designed asymmetrically to one another and thus to have different lengths.

[0030] The pivot bearing 123 of the trigger element 119 has a V-shape or a U-shape. Via the pivot bearing 123, the trigger element 119 is tiltably or pivotably mounted on the retaining leg 116 of the clamping spring 113.

[0031] The pressure surface 120 is formed on the first leg 121 of the trigger element 119. The first leg 121 of the trigger element 119 can thus delimit the conductor connection space downwards, as seen in the insertion direction E.

[0032] The retaining leg 116 of the clamping spring 113 has a first leg 124 and a second leg 125 arranged at an angle to the first leg 124. The trigger element 119 is tiltably mounted on the second leg 125 of the retaining leg 116.

[0033] In the embodiment shown here, the first leg 124 of the holding leg 116 enables the clamping spring 113 to be supported on an inner wall 126 of the housing 110, as shown in the sectional views of the Fig. 1 and3 can be seen. Alternatively, it would also be possible for the first leg 124 of the holding leg 116 to be supported on the current bar 112. The first leg 124 borders on an arcuate section 127 of the clamping spring 113, via which the holding leg 116 is connected to the clamping leg 117 of the clamping spring 113. The first leg 124 of the holding leg 116 is arranged between the arcuate section 127 and the second leg 125 of the holding leg 116.

[0034] In the embodiment shown here, the second leg 125 extends approximately at a 90° angle from the first leg 124. However, the angle between the first leg 124 and the second leg 125 could, for example, also be less than 90°. The second leg 125 extends essentially parallel to the bearing section 115 of the current bar 112. The second leg 125 has a bent free end section 128. The trigger element 119 is mounted on this free end section 128 with its pivot bearing 123. The free end section 128 is bent in the direction of the clamping leg 117 of the clamping spring 113. Due to the bent free end section 128, the second leg 125 has an L-shape.

[0035] The trigger element 119 sits with its pivot bearing 123 on the free end section 128 in such a way that the trigger element 119 can tilt to the right and to the left like a rocker.

[0036] In the open position of the clamping leg 117 of the clamping spring 113, the clamping leg 117 engages with the release element 119 to hold the clamping leg 117 in the open position. This is achieved via a locking mechanism between the release element 119 and the clamping leg 117.

[0037] For this purpose, the clamping leg 117 in the embodiment shown here has a locking arm 129 which, in the open position, is locked to the trigger element 119, in particular in the area of ​​the pivot bearing 123 on the trigger element 119, as shown in Fig. 1 and 2can be seen. The locking arm 129 extends away from the main extension plane of the clamping leg 117 of the clamping spring 113, in particular in the direction of the holding leg 116 of the clamping spring 113. In the embodiment shown here, the locking arm 129 is punched out of the material of the clamping leg 117 and bent into its shape. The locking arm 129 has the shape of a tab, in particular a spring tab or locking tab.

[0038] In the open position of the clamping leg 117 of the clamping spring 113, the locking arm 129 is hooked or locked onto the trigger element 119 in the area of ​​the pivot bearing 123 of the trigger element 119. In the open position, the locking arm 129 hooks behind the pivot bearing 123 by the locking arm 129 engaging over the pivot bearing 123 and hooking onto the pivot bearing 123.

[0039] Fig. 1 and 2show the clamping leg 117 of the clamping spring 113 in the open position, in which the clamping leg 117 is in engagement with the release element 119 via its locking arm 129 and the conductor connection space is thereby released, so that a conductor to be connected can be inserted into the conductor connection space via the conductor insertion opening 111 in the insertion direction E.

[0040] When the conductor to be connected is inserted into the conductor connection space in the insertion direction E, the conductor to be connected strikes the pressure surface 120 of the trigger element 119. This causes a tilting movement or pivoting movement V of the trigger element 119 in the insertion direction E, whereby the locking arm 129 is disengaged from the trigger element 119 or disengaged from the pivot bearing 123 of the trigger element 119. The clamping leg 117 is thereby released, whereby the clamping leg 117 can automatically pivot away from the trigger element 119 or the holding leg 116 in the direction of the conductor inserted into the conductor connection space due to its restoring force or spring force in order to be able to clamp the conductor against the clamping section 114 of the current bar 112.

[0041] If the conductor is to be released from the clamped position again, an actuating element 139 is displaced within an actuating shaft 140 of the housing 110 in actuation direction B. Due to the displacement movement of the actuating element 139 in actuation direction B, the actuating element 139 presses the clamping leg 117 away from the conductor with its actuating section 141, so that the clamping leg 117 is pivoted in the direction of the holding leg 116. The actuating element 139 applies a compressive force to the clamping leg 117 in actuation direction B until the clamping leg 117 is moved far enough in the direction of the holding leg 116 until the clamping leg 117 engages the release element 119 via its locking arm 129 and is thus in the open position and held there. The actuating element 139 is mounted in the actuating shaft 140 of the housing 110 so as to be linearly displaceable.

[0042] In the embodiment shown here, the locking between the locking arm 129 of the clamping leg 117 of the clamping spring 113 and the triggering element 119 can be released not only via the conductor to be connected, but also by actuating the actuating element 139. For this purpose, the actuating element 139 has an actuating arm 142. If the triggering element 119 is not triggered by the conductor to be connected, the actuating arm 142 of the actuating element 139 can interact with the triggering element 119 in such a way that the locking arm 129 of the clamping leg 117 disengages from the triggering element 119 and can pivot from the open position into the clamping position.

[0043] As in Fig. 2 and 4As can be seen, the actuating arm 142 extends in the actuating direction B of the actuating element 139. The actuating arm 142 forms an extension, in particular a lateral extension, of the actuating element 139. The actuating arm 142 is positioned such that it laterally overlaps the actuating section 141 of the actuating element 139. The actuating arm 142 is web-shaped. The actuating arm 142 is designed so long that it laterally overlaps the clamping leg 117 and also the locking arm 129 of the clamping leg 117. Furthermore, the actuating arm 142 also laterally overlaps the trigger element 119. In the open position of the clamping leg 117 of the clamping spring 113, the actuating arm 142 is immersed in a recess 143 on the current bar 113, in particular on the bearing section 115 of the current bar 113, as shown in Fig. 2 can be seen.

[0044] The actuating arm 142 is L-shaped here and has a rear grip 144 at its free end. Via this rear grip 144, the actuating arm 142 can interact with a locking lug 130 formed on the second leg 122 of the triggering element 119. The locking lug 130 can be hooked onto the actuating arm 142, in particular onto the rear grip 144 of the actuating arm 142 of the actuating element 139, during emergency release by the actuating element 139, or the actuating arm 142 can then at least partially engage around or hook under the locking lug 130, as in Fig. 4 can be seen. Via the locking lug 130, the actuating arm 142 of the actuating element 139 can tilt the second leg 122 of the triggering element 119 against the actuating direction B of the actuating element 139 (tilting movement V) in order to trigger the triggering element 119 and thus release the clamping leg 117 from the open position.

[0045] The actuating arm 142 can apply a tensile force Z to the trigger element 119 or the second leg 122 of the trigger element 119 via the locking lug 130, counter to the actuating direction B. A tilting movement V of the trigger element 119 can also be triggered by means of the actuating element 139 if this is not possible via the conductor to be connected.

[0046] The locking lug 130 is formed, in particular molded, on a longitudinal edge surface 131 of the second leg 122 of the trigger element 119. The locking lug 130 extends within the main extension plane of the second leg 122 of the trigger element 119 at a right angle from the longitudinal edge surface 131 of the second leg 122 of the trigger element 119. In the area of ​​the locking lug 130, the second leg 122 of the trigger element 119 thus has a greater width than in the remaining area of ​​the second leg 122.

[0047] To simplify handling, the actuating element 139 has a release section 146 on its upper side 145. The release section 146 protrudes from the upper side 145 of the actuating element 139. A tensile force Z can be easily applied to the actuating element 139 via the release section 146, either manually or by means of a tool W. The release section 146 is formed on the actuating element 139 off-center from the upper side 145 of the actuating element 139.

[0048] In the embodiment shown here, the release section 146 has two tool engagement sections 147a, 147b. A tool W, such as a screwdriver, can, as shown in Fig. 3 and 4shown, engage in the two tool engagement sections 147a, 147b in order to apply a tensile force Z to the actuating element 139 and thus pull the actuating element 139 against the actuating direction B. The two tool engagement sections 147a, 147b are each designed in the form of a tab, so that they can each form a rear grip for receiving the tool W. List of reference symbols

[0049] 100Connection arrangement 110Housing 111Conductor entry opening 112Current bar 113Clamping spring 114Clamping section 115Bearing section 116Retaining leg 117Clamping leg 118Clamping edge 119Release element 120Pressure surface 121First leg 122Second leg 123Pivot bearing 124First leg 125Second leg 126Inner wall 127Curved section 128Free end section 129Locking arm 130Locking lug 131Longitudinal edge surface 139Actuating element 140Actuating shaft 141Actuating section 142Actuating arm 143Recess 144Rear grip 145Top 146Release section 147a, 147bTool engagement section EInsertion direction BDactuation direction VPivoting movement WTool

Claims

1. A connection arrangement (100) for connecting an electrical conductor, comprising a housing (110) having a conductor insertion opening (111), a current bar (112) arranged in the housing (110), a clamping spring (113) arranged in the housing (110), which clamping spring has a holding leg (116) and a clamping leg (117), the clamping leg (117) being transferable into a clamped position and into an open position, an actuating element (139) by means of which the clamping leg (117) can be transferred from the clamped position into the open position upon movement of the actuating element (139) in an actuating direction (B), and a triggering element (119) which, in the open position of the clamping leg (117), engages with the clamping leg (117) such that the clamping leg (117) is held in the open position by means of the triggering element (119). and which can be pivoted in such a waythat when the conductor to be connected is inserted into the conductor insertion opening (111) in the insertion direction (E), the triggering element (119) can be actuated in such a way that the clamping leg (117) is disengaged from the triggering element (119) and pivots from the open position into the clamping position, wherein the actuating element (139) has an actuating arm (142), wherein if the triggering element (119) is not triggered by the conductor to be connected, the actuating arm (142) of the actuating element (139) cooperates with the triggering element (119) in such a way that the clamping leg (117) is disengaged from the triggering element (119) and pivots from the open position into the clamping position.

2. Connection arrangement (100) according to claim 1, characterized in that the release element (119) is locked in the open position with the clamping leg (117).

3. Connection arrangement (100) according to claim 2, characterized in thatthe clamping leg (117) of the clamping spring (113) has at least one locking arm (129) which is locked to the trigger element (119) in the open position.

4. Connection arrangement (100) according to one of claims 1 to 3, characterized in that the trigger element (119) is pivotally mounted on the holding leg (116) of the clamping spring (113).

5. Connection arrangement (100) according to one of claims 1 to 4, characterized in that the trigger element (119) is rocker-like.

6. Connection arrangement (100) according to claim 5, characterized in that the triggering element (119) has a first leg (121) and a second leg (122) connected to the first leg (121) via a pivot bearing (123), wherein the first leg (121) has a pressure surface (120) via which the triggering element (119) can be actuated with the conductor, and wherein the second leg (122) cooperates with the actuating arm (142) of the actuating element (139).

7. Connection arrangement (100) according to claim 6, characterized in that the trigger element (119) is pivotally mounted on the holding leg (117) of the clamping spring (113) via its pivot bearing (123).

8. Connection arrangement (100) according to claim 7, characterized in that a locking lug (130) is formed on the second leg (122) of the triggering element (119), which interacts with the actuating arm (142) of the actuating element (139).

9. Connection arrangement (100) according to one of claims 1 to 8, characterized in that the actuating arm (142) extends in the actuating direction (B) of the actuating element (139) and the actuating arm (142) laterally overlaps an actuating section (141) of the actuating element (139) for actuating the clamping leg (117) of the clamping spring (113).

10. Connection arrangement (100) according to one of claims 1 to 9, characterized in thata recess (143) is formed on the current bar (112), into which the actuating arm (142) is immersed in the open position of the clamping leg (117) of the clamping spring (113).

11. Connection arrangement (100) according to one of claims 1 to 10, characterized in that the actuating element (139) has a release section (146) on an upper side (145), via which the actuating element (139) can be pulled manually or by means of a tool (W) against the actuating direction (B), wherein the release section (146) protrudes from the upper side (145).

12. Connection arrangement (100) according to claim 11, characterized in that the release section (146) has at least one tool engagement section (147a, 147b).

13. Connection terminal, in particular a series terminal, with at least one connection arrangement (100) which is designed according to one of claims 1 to 12.

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