DE102022118242A1 - Connection arrangement with at least one connection terminal for connecting an electrical line - Google Patents

Abstract

A connection arrangement (3) comprises a connection terminal (1, 1A, 1B) for connecting an electrical line (2) and a housing. The connection terminal (1, 1A, 1B) has a contact element (11) arranged on the housing with a contact section (110), a spring element (12) with a clamping leg (120) that can be adjusted relative to the housing, and an actuating element (120) arranged pivotably on the housing ( 14), wherein the actuating element (14) has an actuating section (141) for actuation by a user and an active section (144) for acting on the clamping leg (120) and can be adjusted from a non-actuated position to an actuated position in order to To transfer the clamping leg (120) into a release position in which the clamping leg (120) is removed from the contact section (110) in comparison to the clamping position. It is provided that the housing has two edge sections (109) extending parallel to one another, which form a receiving opening (102) between them, in which the actuating section (141) of the actuating element (14) rests in the actuated position.

Description

The invention relates to a connection arrangement with at least one connection terminal for connecting an electrical line according to the preamble of claim 1.

Such a connection arrangement comprises at least one connection terminal to which an electrical line can be inserted and connected, and a housing formed by at least one housing part. The connection terminal has a contact element arranged on the housing with a contact section for electrical contact with an electrical line, a spring element with a clamping leg that is adjustable relative to the housing and an actuating element pivotally arranged on the housing. The clamping leg is designed to act in a clamping position on an electrical line for contact with the contact section. The actuating element has an actuating section for actuation by a user and an active section for acting on the clamping leg and is adjustable from a non-actuated position into an actuated position in order to transfer the clamping leg into a release position in which the clamping leg is in comparison to the clamping position of away from the contact section.

By using the spring element, the connection terminal realizes a spring-loaded connection, in which the electrical line is clamped in the connected position with the contact element under the elastic spring action of the spring element and is therefore electrically connected to the contact element.

At one of the DE 10 2019 127 464 B3 In the known connection terminal, a spring element in the form of a tension spring is provided, which pulls a connected electrical line into contact with an associated contact element by elastic spring action and thus creates a clamping connection between the electrical line and the contact element. For this purpose, the electrical line is pushed through an opening in the clamping leg when it is attached and clamped in the connected position between the clamping leg and the contact element.

At the connection terminal DE 10 2019 127 464 B3 A locking device is provided, via which the clamping leg is locked in a release position relative to the housing. When the electrical cable is inserted, the latching device is triggered and the latching is thus released, so that the clamping leg is moved out of the release position and the electrical cable is thereby jammed with the contact element. In order to move the clamping leg into the release position, in particular to enable the electrical line to be attached or to detach a connected electrical line from the connection terminal, a tool, for example a screwdriver, can be placed on the connection terminal and thereby exert a force on the clamping leg become.

While at the DE 10 2019 127 464 B3 Adjusting the clamping leg directly using a tool is possible DE 10 2019 135 203 A1 and the DE 10 2020 104 140 A1 Known connection terminals each have an actuating element in the form of a so-called pusher, which can be pressed into the housing of the connection terminal in order to act on the clamping leg and to move the clamping leg into its release position. The actuating element is spring-biased relative to the housing of the connecting terminal via a tension spring in the form of a compression spring. At the from the DE 10 2019 135 203 A1 Known connection terminal, an actuating lug is arranged on the actuating element, which is hooked to a fastening section of a holding element in the actuated position of the actuating element.

In order to connect an electrical line to the connection terminal of the connection arrangement, the actuating element can be moved into the actuated position in order to thereby transfer the clamping leg of the spring element into the release position. A space within the housing of the connection arrangement is thus released, so that an electrical line can be plugged into the housing essentially without force and thus connected to the connection terminal.

There is a need to make the operation of the connection terminal as intuitive as possible for a user. In particular, incorrect operation of the actuating element should be avoided as far as possible, which could possibly lead to damage to the connection terminal. Such incorrect operation can occur, for example, if it is not clear to a user how the actuating element, which is pivotally arranged on the housing, is to be actuated to connect an electrical line.

Connection terminals in which an actuating element in the form of a lever is pivotally mounted on a housing are, for example, from DE 20 2019 105 075 U1 and the DE 10 2019 131 141 A1 known.

The object of the present invention is to provide a connection arrangement in which the actuation of an actuation element of a connection terminal is simple and intuitive for a user.

This task is solved by an object with the features of claim 1.

Accordingly, the housing has two edge sections extending parallel to one another, which form a receiving opening between them, in which the actuating section of the actuating element rests in the actuated position.

The actuating element is pivotally mounted on the housing and has an actuating section for actuation by a user and an active section for acting on the clamping leg. While the actuating section is accessible from outside the housing, for example by a user using a tool, for example a screwdriver, or alternatively can act on the actuating section manually, the active section is in operative connection with the clamping leg of the spring element. By adjusting the actuating element, an adjusting force is exerted on the clamping leg via the active section, so that when the actuating element is adjusted from the non-actuated position to the actuated position, the clamping leg is taken along and thus moved in the direction of the release position.

The actuating element can be moved from a non-actuated position to an actuated position in order to transfer the clamping leg of the spring element into the release position and can be pivoted on the housing of the connection arrangement for this purpose. While the actuating element projects outwards relative to the housing in the non-actuated position, in the actuated position the actuating element lies in a receiving opening in the housing, which is formed between edge sections of the housing that extend parallel to one another. The edge sections thus at least partially enclose the actuating section of the actuating element in the actuated position, so that the actuating section approaches the housing in the actuated position and is recessed in the housing.

In the actuated position of the actuating element, the clamping leg of the spring element is in the release position. In the release position, the clamping leg is held in position relative to the housing by the clamping leg being locked directly or indirectly to the housing or to a component arranged on the housing. For example, the actuating element can be locked in the actuated position relative to the housing, so that the clamping leg is held in the release position indirectly via the actuating element when the actuating element is in the actuated position.

In the actuated position of the actuating element, the connection arrangement can, for example, be delivered by a manufacturer to a customer.

In the actuated position, the actuating section can preferably be enclosed in the receiving opening in such a way that a user cannot easily move the actuating section out of the actuated position. For example, the connection terminal can be designed in such a way that the connection terminal triggers automatically when a user plugs an electrical cable into the housing of the connection terminal, so that the actuating element is released from the actuated position and the clamping leg is released from the release position in order to clamp the electrical line to act and bring them into electrical contact with the contact element of the connecting terminal.

Handling the connection terminal is therefore easy and intuitive for the user. The electrical line is connected by a user plugging the electrical line into the connection terminal, whereby the connection terminal is automatically triggered and the actuating element is thus released from the actuated position. Because the actuating element is recessed with the actuating section in the receiving opening and therefore does not or only barely protrudes from the housing when the actuating element is in the actuated position, a user cannot move the actuating element manually out of the actuated position. The user can therefore not operate the actuating element incorrectly from the actuated position, or at least only with difficulty, and intuitively recognizes that the connection has to be made by plugging in an electrical cable, without the actuation of the actuating element being necessary.

In one embodiment, at least one of the edge sections has an edge delimiting the edge section, which in the actuated position of the actuating element - viewed along a direction perpendicular to a pivot plane - is arranged parallel to an outer surface of the actuating section. The actuating element can be pivoted along the pivot plane. In a side view perpendicular to the pivot plane, the edge of the edge section and the outer surface are aligned parallel to one another.

Preferably, the outer surface is at least approximately flush with the edge when the actuating element is in the actuated position. Due to the parallel extension of the outer surface to the edge, the actuating element does not protrude outwards, or only protrudes slightly, relative to the edge section. The actuating element can therefore not be operated by a user or only with difficulty, with the connection terminal preferably being triggered automatically when an electrical line is plugged into the housing and thus connected to the connection terminal.

Preferably, the edges of the edge sections delimiting the receiving opening are each extended parallel to the outer surface of the actuating section when the actuating element is in the actuated position.

In one embodiment, the actuation section has an inner surface pointing into the interior of the housing. The inner surface can, for example, extend parallel to the outer surface. For example, the actuating section can form a head on which a user can act by hand or with a tool to actuate the actuating element, the head of the actuating element being limited by the outward-facing outer surface and the facing away, inward-facing inner surface and in the manner of a lever protrudes from the pivot axis of the actuating element.

It is preferably provided here that the inner surface is accessible from outside the housing in the non-actuated position of the actuating element. In the actuated position of the actuating element, the inner surface is not accessible from outside the housing. In the actuated position, the actuating element is thus sunk into the receiving opening in such a way that a user cannot, for example, reach under the actuating section with a tool in order to move the actuating section out of the actuated position. Exerting a torque on the actuating element by engaging the actuating section to transfer it from the actuated position to the non-actuated position is therefore not possible or at least more difficult.

In one embodiment, the actuating element has at least one projection formed on the actuating section, which engages in a recess on at least one of the edge sections in the actuated position of the actuating element. The projection can, for example, protrude from the actuating section along a rowing direction along which the edge sections of the housing are spaced apart from one another. Such a projection can, for example, create a widening of the actuation section, in particular in an area in which a tool engagement is formed on the actuation section.

In one embodiment, the actuation section has a tool engagement for attaching a tool. Such a tool engagement can be formed, for example, by a groove-shaped slot into which a tool, for example a screwdriver, can be inserted in order to act on the actuating element, in particular for transferring it into the actuated position.

In one embodiment, the actuation section has at least one outward-facing rib, preferably on its outer surface. Such a rib can, for example, provide an attack surface for a user, so that a user can, for example, act on the outer surface of the actuating section with a finger and slipping is at least made more difficult via a rib structure.

In one embodiment, the spring element is designed as a tension spring. In this case, the clamping leg of the spring element is designed to pull the electrical line into contact with the contact element by spring force. In this case, an opening can be formed on the clamping leg, for example, through which the electrical line can be passed when it is plugged into the connecting terminal in order to pull the electrical line into clamping contact with the contact element after the clamping leg has been released from the release position.

Alternatively, the spring element can be designed as a compression spring. In this case, the clamping leg is designed to press the electrical line into contact with the contact element by spring force. When plugged into the connection terminal, the electrical line enters a space between the clamping leg and the contact element, whereby after the clamping leg is released from the release position, the clamping leg acts on the electrical line and presses it into contact with the contact element.

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

In one embodiment, the support leg of the spring element is supported between two adjacent housing parts. The support leg is thus supported on the housing and rests, for example, on a support section on a wall of a housing part and additionally, for example, on a support section on a wall of an adjacent housing part. The support leg is thus supported together on two housing parts of adjacent connection terminals.

In the case of at least one connection terminal, the electrical line is electrically contacted with the electrical contact element, in that when the electrical line is plugged into the connection terminal, the clamping leg acts on the electrical line and loads it resiliently in the direction of contact with the contact element. In order to make it easier to plug in the electrical cable, the clamping leg of the spring element can be deflected elastically, for example by a tool or by actuating an actuating element, in order in this way to move the clamping leg into a release position in which a space in the area of a plug-in opening is released and thus the electrical cable can be inserted into the plug opening in a substantially powerless manner or a connected electrical cable can be easily removed from the connection terminal.

If the clamping leg has been moved into the release position, the clamping leg is, in one embodiment, held in the release position relative to the housing. This can be done by directly locking the clamping leg relative to the housing or by indirect locking, for example via an actuating element.

In one embodiment, the at least one connection terminal has a trigger element which is designed to interact with the electrical line when it is plugged into the connection terminal in order to release the clamp leg from the release position. The triggering element serves to trigger the clamping leg from the release position in order to automatically release the clamping leg from the release position when the electrical cable is inserted and thus to transfer it to a clamping position in which the electrical cable plugged into the connection terminal is electrically contacted with the contact element of the connection terminal. Because the trigger element is deflected when the electrical cable is inserted, the connecting terminal closes automatically when the electrical cable is inserted. The result is a simple connection process, with reliable contact between the line and the contact element.

Such a connection terminal, in which the clamping leg of the spring element is held in position relative to the housing in the release position and which can be triggered automatically via a trigger element when an electrical cable is inserted, can be delivered by a manufacturer, for example, with the clamping leg in the release position.

In one embodiment, the triggering element has a triggering leg which is designed to interact with the electrical line when plugged into the connection terminal. The trigger leg is triggered by interaction with the electrical line, so that the clamping leg is released from the release position. The housing defines a receiving space into which the electrical cable can be inserted by inserting it into a plug-in opening. The trigger leg extends in the receiving space to interact with the electrical line. In particular, the electrical line can be inserted into the plug-in opening along a plug-in direction, with the trigger leg extending (approximately) transversely to the plug-in direction in the receiving space at least with one end section.

The triggering element can, for example, be designed as an integral, elastically resilient element.

In one embodiment, the triggering element has a supporting end, relative to which the triggering leg is elastically adjustable through interaction with the line plugged into the connecting terminal. The triggering element is supported on the housing via the supporting end, for example by fastening the supporting end to an associated connecting device of the at least one housing part. The trigger element is thus attached to the housing via the supporting end, in that the supporting end is in operative connection with a connecting device and is held on the housing in a torque-proof manner.

In one embodiment, the supporting end of the trigger element is supported between two adjacent housing parts. For this purpose, the supporting end engages, for example, in an engagement opening on a wall of a housing part and is additionally supported on a housing part of an adjacent connection terminal and, for this purpose, engages, for example, in an engagement opening on a wall of the adjacent housing part. The supporting end is thus supported together on two housing parts of adjacent connection terminals.

In one embodiment, the actuating element locks with the triggering element in the actuated position. In the actuated position, the actuating element is thus held in position via the triggering element, so that the clamping leg of the spring element is also held in its release position, in which a simple attachment of an electrical line to the connection terminal is possible or a connected line in a substantially powerless position can be removed from the connection terminal. After the locking has been released, the actuating element can, in particular, automatically adjust itself, preferably under spring preload, back towards the non-actuated position. A spring preload on the actuating element can be effected, for example, via the clamping leg, which is elastically deflected in the actuated position and, after the actuating element has been released, acts spring-mechanically on the actuating element to transfer the actuating element from the actuated position towards the non-actuated position.

In one embodiment, the actuating element has a latching section for latching with a latching device of the triggering element in the actuated position. The latching section can, for example, be arranged on a side of the actuating element facing away from the actuating section (with respect to the pivot axis of the pivotable mounting of the actuating element on the housing), preferably approximately diametrically distant from the actuating section with respect to the pivot axis. Via the locking section, the actuating element is locked in the actuated position with an associated locking device of the triggering element, so that the actuating element is held in the actuated position, but can be released from the actuated position in a simple, reliable manner by triggering the triggering leg when the electrical cable is plugged in can.

The latching device of the triggering element can be formed, for example, by an opening into which the latching section of the actuating element, for example formed by a projection, engages in the actuated position of the actuating element. The actuating element is thus held in position in its actuated position by positive engagement of the locking section in the opening of the triggering element, the engagement being canceled by adjusting the triggering leg and the actuating element can thus be released from the actuated position in order to transfer the clamping leg into the release position.

In one embodiment, the actuating element is pivotally mounted between two adjacent housing parts. Adjacent housing parts thus store the actuating element together between them. For example, each housing part can have a stub axle that engages in a bearing opening on the actuating element, so that a pivot bearing for the actuating element between the housing parts is provided.

In one embodiment, the housing has a plurality of housing parts that are lined up along a line-up direction. The housing parts can be assigned to a plurality of connection terminals, so that the connection arrangement is formed by a plurality of connection terminals arranged in a row along the rowing direction.

The edge sections, which form the receiving opening between them for receiving and lowering the actuating section in the actuated position of the actuating element, are preferably formed on walls of adjacent housing parts. The housing parts are attached to one another along the alignment direction. Each receiving opening is formed between an edge section on a housing part and an adjacent housing part.

Advantageously, the connection arrangement has an outer housing into which housing parts arranged next to one another along the arrangement direction can be inserted in an assembly direction. The outer housing has a first guide device with at least one first guide web. The housing parts arranged in a row have a second guide device with at least one second guide web. The at least one second guide web of the second guide device is guided on the at least one first guide web of the first guide device when the aligned housing parts are inserted in the assembly direction into the outer housing.

The connection arrangement is created by attaching housing parts of connection terminals to one another along a line-up direction. In a lined-up position, the housing parts can be inserted into the outer housing of the connection arrangement, so that in a mounted position the housing parts are received in the outer housing and thus enclosed by the outer housing.

The outer housing can, for example, have a box shape that is open on one side, so that the housing parts arranged in a row are inserted into the box-shaped outer housing can be pushed. In another embodiment, the outer housing can, for example, have the shape of a frame that is open on both sides, into which the housing parts arranged in a row can be inserted.

The outer housing here has a first guide device which serves to guide the housing parts arranged in a row and for this purpose cooperates with a second guide device of the housing parts arranged in a row. Each guide device has at least one guide web, the guide webs being guided against one another when the housing parts arranged in a row are inserted into the outer housing, so that the housing parts arranged in a row are brought into engagement with the outer housing in a guided manner.

By providing the outer housing, the advantages of a disk design of the connection terminals and a so-called monoblock are combined.

Because connection terminals are designed with individual housing parts and can be attached to one another along the alignment direction in order to create the connection arrangement, the housing parts can be designed in such a way that the components of the connection terminals can be mounted in a simple manner on the respective housing part, for example Spring element and the contact element. The housing part of each connection terminal is, for example, not closed to the outside, but the housing of the connection terminals is only completed by attaching the housing parts of the connection terminals to one another. This results in easy installation of the individual connection terminals with variable combinability with other connection terminals.

Because the connecting terminals arranged in a row are enclosed in the outer housing in the assembled position, a mechanically stable arrangement is also created, in which the housing parts of the connecting terminals are received in the housing in a defined manner in a arranged position and secured to the housing. By being guided via the guide devices, the housing parts are inserted into the outer housing in a defined manner and are supported on the outer housing in the assembled position, so that a uniform connection arrangement is created that is mechanically stable.

In one embodiment, at least one of the housing parts has at least one second guide web, which is guided on an assigned first guide web of the first guide device. Advantageously, each of the housing parts has at least one second guide web, which is guided on a respectively assigned first guide web of the first guide device. One (or all) of the housing parts is therefore guided on the outer housing.

In one embodiment, the at least one of the housing parts, preferably each of the housing parts, has a wall which extends along a plane perpendicular to the rowing direction, from which the at least one second guide web protrudes along the rowing direction. The housing part of a (each) connection terminal can have a disk shape, in which the wall of the housing part extends perpendicular to the direction of arrangement and has a size in the plane perpendicular to the direction of arrangement that is (significantly) larger than the width of the connection terminal (measured along the direction of arrangement ). The guide web assigned to the housing part protrudes from the wall along the rowing direction and is therefore formed laterally on the wall.

Preferably, two second guide webs are formed on at least one of the housing parts, preferably on a majority of the housing parts, of the connection terminals, which are arranged on sides of the wall facing away from one another. The guide webs each protrude from the wall along the direction of arrangement, but point in different, opposite directions. Each guide web is guided on an associated guide web of the first guide device of the outer housing when the aligned housing parts are inserted into the outer housing, so that reliable guidance is provided with mechanically stable support in the assembled position.

Guide webs can be formed on an upper edge of the wall pointing along the assembly direction and/or on a parallel lower edge of the wall pointing along the assembly direction and protrude from the wall on one or both sides. Each guide web of the housing part is guided on an associated guide web on the outer housing.

In one embodiment, the at least one first guide web and/or the at least one second guide web form a dovetail guide. If, for example, two second guide webs are formed on the wall of the housing part of a connection terminal, which protrude from the wall along the direction of arrangement and point in different directions, the guide webs can together form a trapezoidal shape in cross section, which provides a dovetail guide. Analogously, there are two on one wall of the outer housing, for example first guide webs are formed, which together form a trapezoidal shape with which the second guide webs of the respective housing part can be brought into engagement, so that a guide is provided when the housing parts are inserted into the outer housing and, in the assembled position, the arrangement of the housing parts is supported in a mechanically stable manner on the outer housing is.

The direction of arrangement and the direction of assembly are preferably perpendicular to one another. The (disc-shaped) connection terminals are attached to one another along the alignment direction by lining up the housing parts along the alignment direction. In a lined-up position, the housing parts are inserted into the outer housing in the assembly direction perpendicular to the line-up direction, so that in the assembled position the housing parts are enclosed in the outer housing.

Here, the at least one first guide web and the at least one second guide web are advantageously undercut with respect to a vertical direction perpendicular to the assembly direction and the rowing direction, so that the at least one first guide web and the at least one second guide web are supported relative to one another along the vertical direction. The guide webs protrude relative to a plane spanned by the vertical direction and the mounting direction, so that the guide webs engage behind each other. With respect to the vertical direction, the guide webs form an undercut by springing back along the rowing direction, so that the guide webs engage with one another and are supported in relation to one another in a plane spanned by the rowing direction and the vertical direction. The guide webs can be moved relative to one another along the assembly direction, but are supported against one another in a form-fitting manner in the plane perpendicular to the assembly direction.

• 1 eine Ansicht einer Anschlussanordnung mit einer Mehrzahl von in einem Außengehäuse aufgenommener Anschlussklemmen;
• 2 eine Seitenansicht der Anschlussanordnung;
• 3 die Anschlussanordnung gemäß 1, in einer betätigten Stellung von Betätigungselementen der Anschlussklemmen;
• 4 eine Seitenansicht der Anschlussanordnung gemäß 3;
• 5 eine Längsschnittansicht durch eine Anschlussklemme, in einer betätigten Stellung eines Betätigungselements;
• 6A eine Ansicht eines Gehäuseteils einer Anschlussklemme;
• 6B eine Ansicht eines Gehäuseteils einer benachbarten Anschlussklemme;
• 7A-7C gesonderte Ansichten eines Auslöseelements der Anschlussklemme;
• 8A eine Ansicht eines Gehäuseteils der Anschlussklemme;
• 8B eine vergrößerte Ansicht im Ausschnitt X gemäß 7A;
• 9 eine Schnittansicht entlang der Linie I-I gemäß 2;
• 10 eine Schnittansicht entlang der Linie II-II gemäß 2;
• 11 eine Schnittansicht entlang der Linie III-III gemäß 10;
• 12 eine gesonderte Ansicht des Außengehäuses der Anschlussanordnung;
• 13A eine Seitenansicht des Außengehäuses;
• 13B eine Frontalansicht mit Blick in das Außengehäuse hinein;
• 13C eine rückseitige Ansicht des Außengehäuses;
• 14A-14C gesonderte Ansichten eines Gehäuseteils einer Anschlussklemme;
• 15 eine vergrößerte Ansicht der Anschlussanordnung mit Betätigungselementen der Anschlussklemmen in der betätigten Stellung; und
• 16 eine vergrößerte Seitenansicht der Betätigungselemente in der betätigten Stellung.

The idea underlying the invention will be explained in more detail below using the exemplary embodiments shown in the figures. Show it:

• 1 a view of a connection arrangement with a plurality of connection terminals accommodated in an outer housing;
• 2 a side view of the connection arrangement;
• 3 the connection arrangement according to 1 , in an actuated position of actuating elements of the connection terminals;
• 4 a side view of the connection arrangement according to 3 ;
• 5 a longitudinal sectional view through a connection terminal, in an actuated position of an actuating element;
• 6A a view of a housing part of a connection terminal;
• 6B a view of a housing part of an adjacent connection terminal;
• 7A-7C separate views of a trigger element of the connection terminal;
• 8A a view of a housing part of the connection terminal;
• 8B an enlarged view in detail X according to 7A ;
• 9 a sectional view along line II according to 2 ;
• 10 a sectional view along line II-II according to 2 ;
• 11 a sectional view along line III-III 10 ;
• 12 a separate view of the outer housing of the connection arrangement;
• 13A a side view of the outer housing;
• 13B a front view looking into the outer housing;
• 13C a rear view of the outer casing;
• 14A-14C separate views of a housing part of a connection terminal;
• 15 an enlarged view of the connection arrangement with actuating elements of the connection terminals in the actuated position; and
• 16 an enlarged side view of the actuating elements in the actuated position.

1 until 4 show an exemplary embodiment of a connection arrangement 3, which has a plurality of connection terminals 1, 1A, 1B, which are enclosed together in an outer housing 30. The connection terminals 1, 1A, 1B are lined up along a rowing direction A and enclosed together in the outer housing 30, with each connection terminal 1, 1A, 1B being assigned a plug-in opening 100 on a respectively assigned housing part 10, 10A, 10B, in one Electrical line 2 with a (stripped) conductor end 20 can be inserted along a plug-in direction E in order to connect the electrical line 2 to the connection terminal 1, 1A, 1B.

5 shows a sectional view of an exemplary embodiment of a connection terminal 1, which has a housing part 10 with a plug-in opening 100 formed therein for plugging in an electrical line 2 along a plug-in direction E. The other connection terminals 1A, 1B can be identical in construction and function to connection terminal 1, so that the following explanations apply to all connection terminals 1, 1A, 1B.

However, it is also conceivable that the connection terminals 1, 1A, 1B differ in their functionality and in particular do not have all of the components described below.

The housing part 10 defines a receiving space 101 into which the electrical line 2 with a stripped conductor end 20 is inserted when it is inserted into the plug-in opening 100 along the plug-in direction E. In a connected position, the line 2 with the stripped conductor end 20 is located within the receiving space 101 and is electrically contacted via a clamping leg 120 of a spring element 12 with a contact element 11 in the form of a current bar, so that the electrical line 2 is electrically connected to the connection terminal 1 .

The spring element 12 has a support leg 121 which is supported on a wall 106 of the housing 10. The clamping leg 120 can be deflected elastically relative to the support leg 121, in particular in such a way that the clamping leg 120, in a clamping position, acts in a clamping manner on an electrical line 2 connected to the connecting terminal 1 and presses it under elastic prestress into contact with the contact element 11 and thus the line 2 electrically contacted with the contact element 11 via its conductor end 20.

The contact element 11 has a contact section 110 which extends flatly in the housing part 10 and against which the electrical line 2 with the conductor end 20 is pressed by spring preloading of the clamping leg 120 when the electrical line 2 is connected to the connection terminal 1. Connected to the contact section 110 is a contacting device 111 arranged in a plug connector section 15, via which the connecting terminal 1 can be plugged in and connected to an associated electrical mating plug connector.

In the exemplary embodiment shown, an actuating element 14 is pivotably mounted on the housing part 10 of the connecting terminal 1 via a pivot axis 140. The actuating element 14 can be pivoted about the pivot axis 140 relative to the housing part 10, with an actuating section 141 being accessible from outside the housing part 10 and thus can be actuated by a user, for example using a tool.

In the exemplary embodiment shown, the pivot axis 140 is formed on the housing part 10 assigned to a connection terminal 1, into which an axle stub 140 'of the housing part 10A of the adjacent connection terminal 1A engages and thus completes the pivot bearing of the actuating element 14 on the housing part 10, as shown 6A , 6B is visible.

The actuating element 14 is in operative connection with the clamping leg 120 of the spring element 12. For this purpose, the spring element 12 passes through a passage opening 142 within the actuating element 14 in such a way that the spring element 12 reaches around the pivot axis 140 with a curved intermediate section 122, as shown 5 is visible. The support leg 121 projects out of the opening 142 on a first side and is supported on the housing part 10. The clamping leg 120, on the other hand, protrudes from the actuating element 14 on a remote, second side and extends within the receiving space 101 in the area of the plug-in opening 100 in such a way that the spring element 12 extends via the clamping leg 120 onto an electrical line 2 inserted into the plug-in opening 100 for contacting purposes with the contact element 11 and can also act for mechanical locking.

The connection terminal 1 has a trigger element 13, which is attached to the housing part 10 via a supporting end 132 and is thereby supported in a torque-resistant manner relative to the housing part 10. A trigger leg 130 extends from the supporting end 132 and projects into the receiving space 101 essentially transversely to the insertion direction E and thus extends in an area aligned with the insertion opening 100.

As can be seen from the separate view of the trigger element 13 7A-7C , the detailed views of the housing parts 10, 10A of the connection terminals 1, 1A according to 8A , 8B as well as the sectional view 9 As can be seen, the supporting end 132 of the trigger element 13 is connected in a form-fitting manner to connecting devices 103, 103 'of adjacent housing parts 10, 10A. The supporting end 132 of the trigger element 13, which is formed by a band-shaped spring element, has recesses 134, 135 on its opposite lateral edges, which, in the mounted position of the trigger element 13, engage with projection elements 104, 104 'on the connecting devices 103, 103'.

The connecting devices 103, 103 'are each formed by an engagement opening 107, 107', into which the supporting end 132 engages, so that the supporting end 132 is received in a form-fitting manner on the housing part 10. The positive connection between the supporting end 132 and the housing part 10 is such that the supporting end 132 cannot slide out of the connecting devices 103, 103 'and in addition the supporting end 132 is supported on the housing part 10 in such a way that when the trigger leg 130 is deflected elastically at the supporting end 132 and can be derived into the housing part 10 and the supporting end 132 remains in position relative to the housing part 10.

The engagement opening 107, 107' is formed on a wall section 106, 106' of the respective housing part 10, 10A, which protrudes from a flat side wall 105 of the housing part 10, 10A, as shown 6A , 6B is visible.

As shown in the section view 9 As can be seen, the supporting end 132 of the connecting terminal 1 is received between the housing parts 10, 10A, the adjacent connecting terminals 1, 1A in such a way that the supporting end 132 is positively connected to the mutually mirror-inverted connecting devices 103, 103 'of the housing parts 10, 10A of the connecting terminals 1, 1A is held.

The triggering leg 130 serves to cooperate with an electrical line 2 inserted into the plug-in opening 100, in particular in order to automatically connect the electrical line 2 to the connecting terminal 1 by triggering the clamping leg 120.

The triggering element 13 has an opening 131 with which the actuating element 14 locks via a locking section 143 in the form of a projection when the actuating element 14 is in an actuating direction B in the in 5 has been transferred to the actuated position shown. In the actuated position, the actuating element 14 engages with the locking section 143 in the opening 131 and is held in a locking manner on the trigger leg 130, so that the actuating element 14 is locked in the actuated position.

In the exemplary embodiment shown, the trigger leg 130 is bent in on itself. Between a free end 138 of the trigger leg 130 remote from the supporting end 132 and a leg section 137 of the trigger leg 130 which is aligned with the supporting end 132 and on which the opening 131 is formed, there is an intermediate section 136 which extends transversely between the free end 138 of the trigger leg 130 and the leg section 137 of the trigger leg 130 carrying the opening 131 is extended. By appropriately shaping the triggering element 13, the triggering element 13 can be adapted to the installation space conditions within the receiving space 101 housing 10.

If the actuating element 14 is actuated in the actuating direction B and thereby about the pivot axis 140 relative to the housing part 10 into the actuated position 5 pivoted, the actuating element 14 takes the clamping leg 120 of the spring element 12 with it via an active section 144 and thereby adjusts the clamping leg 120 into a release position. In the release position, the free end of the clamping leg 120 is removed from the contact section 110 of the contact element 11 and thus releases an area within the receiving space 101 that is aligned with the plug-in opening 100 along the plug-in direction E, so that an electrical line 2 is unhindered by the clamping leg 120 the plug opening 100 can be inserted and thus connected to the connection terminal 1 in a substantially powerless manner.

If an electrical line 2 with a stripped conductor end 20 is inserted into the plug-in opening 100 and thereby inserted into the receiving space 101 in the plug-in direction E while the actuating element 14 is in the actuated position and thus the clamping leg 120 is in the release position, the line arrives 2 in contact with the end section 138 of the trigger leg 130 of the trigger element 13 and deflects it elastically relative to the supporting end 132 and thus to the housing part 10. As a result, the trigger leg 130 is adjusted in the plug-in direction E relative to the latching section 143 of the actuating element 14, so that the latching section 143 disengages from the opening 131 and thus the actuating element 14 is released from the actuated position.

On a side of the opening 131 facing the free end 138 of the trigger leg 130, a casserole element 133 is formed by a bent section of the trigger element 13 shaped as a sheet metal element, on which the locking section 143 rests in the locked position and on which the locking section 143 rests when released from the locking accrues.

Because the electrical line 2 acts on the trigger leg 130 with a lever arm that is larger than the lever arm acting on the locking section 143, the trigger leg 130 can be deflected with little force to be applied by the electrical line 2 and thus the locking when the electrical line 2 is plugged in is easy and stored reliably.

Like this 5 in conjunction with 7B As can be seen, the casserole element 133 is bent in a direction towards the leg section 137 of the trigger leg 130, which points away from the actuating element 14 in the insertion direction E. The latching section 143 comes to lie in the latched position, in which the latching section 143 engages in the opening 131, at a contact point C on the casserole element 133, which extends to a plane P along which the support section 137 aligned with the supporting end 132 extends. is offset. As a result, when the actuating element 14 is locked to the triggering element 13 by engagement of the latching section 143 in the opening 131 on the leg section 137, the actuating element 14 exerts a torque on the triggering element 13 via the latching section 143, which is shown in the sectional view 5 is directed counterclockwise and thus in a direction that additionally reinforces the latching engagement of the latching section 143 with the opening 131.

When the locking is established, the locking section 143 slides into the opening 131 with elastic deflection of the trigger leg 130, and the trigger leg 130 then returns to its starting position, in which the trigger leg 130 is locked with the locking section 143 of the actuating element 14. The trigger leg 130 is loaded on the casserole element 133 by the locking section 143 of the actuating element 14 and is pressed in the direction of the actuating element 14 due to the resulting torque, so that the locking section 143 moves into complete engagement with the opening 131 on the leg section 137.

After the locking is released when an electrical cable 2 is inserted, the actuating element 14 moves out of the actuated position due to the elastic pretension on the clamping leg 120 and is reset against the actuation direction B. The clamping leg 120 comes into clamping contact with the electrical line 2 and thereby presses the conductor end 20 into contacting contact with the contact element 11, so that the line 2 is electrically connected to the connection terminal 1 and is also mechanically locked.

If the electrical line 2 is to be released from the connected position and removed from the connection terminal 1 again, the actuating element 14 can again be moved into the actuated position, so that the clamping leg 120 is brought out of contact with the line 2. The line 2 can thereby be removed from the connection terminal 1 in a substantially powerless manner.

In the exemplary embodiment shown, a housing part 10, 10A, 10B is assigned to each connection terminal 1, 1A, 1B.

The housing parts 10, 10A are each like the housing parts 10, 10A 6A , 6B and the housing part 10 according to 14A , 14B , 14C designed. Each of these housing parts 10, 10A has a central wall 105, from which a raised wall section 106 protrudes on a first side, which forms the engagement opening 107 and the connecting device 103 and from which a raised wall section 106 'protrudes on a second side facing away, which forms an engagement opening 107 'and a connecting direction 103'. The housing part 10, 10A thus serves on the first side to accommodate, support and store the components of the connection terminal 1, 1A, 1B, to which the housing part 10, 10A is assigned, and forms the plug-in opening 100 on the first side for inserting an electrical cable 2 out. On the rear, second side, the housing part 10, 10A serves to complete the housing of an adjacent connection terminal 1, 1A, 1B.

As shown in the section view 10 As can be seen, the housing parts 10, 10A are accommodated centrally in the outer housing 30 of the connection arrangement 3. Outer housing parts 10B, 10C each have a central wall 105, but only carry a wall section 106 or 106 'on one side. The housing part 10B is attached to the housing part 10 and only has a wall section 106, but no wall section 106 'on the rear side. The housing part 10C, on the other hand, is attached to the housing part 10A and thus completes the housing for the connection terminal 1A and only has a wall section 106 ', but no wall section 106, as shown 10 is visible.

In the exemplary embodiment shown, the housing parts 10, 10A, 10B of the connection terminals 1, 1A, 1B are attached to one another along the alignment direction A, as shown in 6A and 6B is illustrated using the housing parts 10, 10A. The housing part 10, 10A, 10B of a connection terminal 1, 1A, 1B is completed by the housing part 10, 10A, 10B of the adjacent connection terminal, so that the housing parts 10, 10A, 10B together form a housing for the connection terminals 1, 1A, 1B.

To assemble the connection arrangement 3, the housing parts 10, 10A, 10B are inserted into the outer housing 3 in a lined-up position in an assembly direction M, in order in this way to connect the connection terminals 1, 1A, 1B in the Outer housing 30 to surround, like this 1 and 3 is visible.

The housing parts 10, 10A, 10B, 10C each have a guide device 16, with guide webs 160, 160 ', 161, 161', which are guided on assigned guide webs 310, 310', 311, 311' of a guide device 31 of the outer housing 3, like this 10 is visible. The guide devices 16, 31 implement a dovetail guide, via which the housing parts 10, 10A, 10B, 10C can be inserted into the outer housing 30 in a guided manner when the housing parts 10, 10A, 10B, 10C are attached to one another.

Like this 10 in conjunction with 6A , 6B as well as 14A-14C As can be seen, the two middle housing parts 10, 10A each have two guide webs 160, 160 'on an upper edge of the wall 105 and two guide webs 161, 161' on a lower edge of the wall 105, which protrude from the wall 105 on both sides and together form a trapezoid shape. The upper and lower pair of guide webs 160, 160' and 161, 161' formed in this way can each be between an assigned pair of guide webs 310, 310' or 311, 311' on a top wall 300 or on a bottom wall 301 of the outer housing 30 be inserted, thereby bringing the housing parts 10, 10A, 10B, 10C into engagement with the outer housing 30.

Like this 10 As can be seen, the two outer housing parts 10B, 10C each only have guide webs 160, 160 ', 161, 161' on one (inward-facing, inner) side of the wall 105, which have associated guide webs 310, 310', 311, 311 'the guide device 31 of the outer housing 30 cooperate.

The housing parts 10, 10A, 10B, 10C, which are arranged in a row, are inserted in a guided manner by placing the guide webs 160, 160', 161, 161', which are trapezoidal in cross section, on the guide webs 310, 310', 311, 311', which are complementary in cross section. be pushed onto the outer housing 30, as shown 10 is visible.

The guide webs each form an undercut with respect to a vertical direction V perpendicular to the assembly direction M and the rowing direction A, so that the housing parts 10, 10A, 10B, 10C in the cutting plane according to 10 , corresponding to a plane perpendicular to the mounting direction M, are positively supported in all spatial directions relative to the outer housing 30, but are guided displaceably on the outer housing 30 along the mounting direction M.

By providing the outer housing 30, the advantages of a disk-shaped, modular design of the individual connection terminals 1, 1A, 1B are combined with a self-contained connection block (also referred to as a monoblock). The housing parts 10, 10A, 10B, 10C can each be designed to be open on one side and thus enable easy attachment and assembly of the components of the connection terminals 1, 1A, 1B. By attaching the housing parts 10, 10A, 10B, 10C, the housing for the connection terminals 1, 1A, 1B is completed, with a uniform, mechanically stable connection arrangement 3 being created after inserting the aligned housing parts 10, 10A, 10B, 10C into the outer housing 30 is, in which the housing parts 10, 10A, 10B, 10C are mechanically firmly received and connected by the outer housing 30.

An axial securing device 17 is formed on the wall 105 of the middle housing parts 10, 10A, in which locking lugs 170, 171 protrude from the wall 105 on an upper edge and on a lower edge. In assembled position, shown in sectional view according to 11 , the locking lugs 170, 171 engage in assigned locking openings on the top wall 300 and the bottom wall 301 of the outer housing 30.

The outer housing parts 10B, 10C have, for example, an upper locking lug 170 for engaging in an associated locking opening on the top wall 300 of the outer housing 30, but no lower locking lug 171.

12 and 13A-13C show separate views of the outer housing 30. The dovetail-shaped arrangements of the webs 310, 310 ', 311, 311' of the guide device 31 on the top wall 300 and the bottom wall 301 of the outer housing 30 can be seen.

On the wall 105 of the housing parts 10, 10A, 10C, a latching element 108 'in the form of a spring tongue is formed on the respective second side, which, when the housing parts 10, 10A, 10B, 10C are attached, has an associated latching opening 108 on an adjacent housing part 10, 10A, 10B comes into engagement, so that the housing parts 10, 10A, 10B, 10C are pre-assembled and held together in a snap-locking manner when placed along the alignment direction A. After inserting the pre-assembled arrangement created in this way into the outer housing 30, the connection arrangement 3 is mounted and is mechanically stable due to the enclosure of the outer housing 30.

In the exemplary embodiment shown, each connection terminal 1, 1A, 1B is assigned a connector section 15, which is connected to the Outer housing 30 is shaped and in which a contacting device 111 of the respective associated contact element 11 rests.

In the connection arrangement 3, the actuation sections 141 of the actuation elements 14 of the connection terminals 1, 1A, 1B are in the actuated position 3 and 4 each accommodated in an assigned receiving opening 102 on the respective connection terminal 1, 1A, 1B, which is formed between edge sections 109 on the walls 105 of the housing parts 10, 10A, 10B, 10C that are lined up along the alignment direction A.

As shown in the enlarged views 15 and 16 As can be seen, a receiving opening 102 is formed for each connection terminal 1, 1A, 1B between the wall 105 of the respective housing part 10, 10A, 10B and a housing part 10, 10A, 10B, 10C adjacent along the rowing direction A. Each wall 105 forms an edge section 109 which extends obliquely to the plug-in direction E and to the vertical direction V, which faces outwards with an edge 109B and is not covered by the outer housing 30 towards the outside, so that the actuating element 14 is relative to the actuating section 141 the receiving opening 102 is movable.

In the actuated position, shown in 15 and 16 , is an outer surface 148, with which the actuating section 141 faces outwards, extending parallel to the edges 109B of the edge sections 109. The outer surface 148 is essentially flush with the edges 109B of the edge sections 109, so that the actuating section 141 does not essentially protrude outwards from the edge sections 109 perpendicular to the longitudinal extent of the edges 109B.

While the outer surface 148 faces outwards and is always accessible from the outside, an inner surface 149 of the actuating section 141 facing away from the outer surface 148 and pointing inwards into the interior of the housing 10 is only in the non-actuated position 1 and 2 as well as 11 accessible from the outside, but not in the actuated position 3 and 4 as well as 15 and 16 . In the actuated position of the actuating element 14, a user cannot therefore reach under a head of the actuating section 141 which is formed at the end of the actuating section 141 and is delimited outwards by the outer surface 148 and inwards by the inner surface 149 in order to access the actuating element 14 out of the actuated position move.

Because the actuating section 141 is sunk into the receiving opening 102 in the actuated position of the actuating element 14, the inner surface 149 is not accessible from the outside in the actuated position of the actuating element 14, so that exerting a torque on the actuating section 141 for moving the actuating element 14 is not possible from the actuated position.

At a free end of each actuation section 141, a tool engagement 146 is formed, with which a tool, for example a screwdriver, can be brought into engagement, in particular to move the actuation elements 14 from the non-actuated position ( 1 and 2 ) into the actuated position ( 3 and 4 as well as 15 and 16).

In the area of the free end of each actuating section 141, projections 145 are formed on both sides of the actuating section 141, which protrude along the rowing direction A and, in the actuated position, lie in recesses 109A of the edge sections 109 on the walls 105, as shown 15 and 16 is visible. Via the projections 145, a widening of the actuating section 141 can be created at the free end, in particular in the area of the tool engagement 146, so that the tool engagement 146 can be made so wide that a common tool, for example a screwdriver, can be inserted into the tool engagement 146 intervention can be brought.

Ribs 147 are formed on the outer surface 148, which form discontinuities on the outer surface 148, which are intended to prevent slipping when the outer surface 148 is touched by hand.

Like this 16 As can be seen, the actuating sections 141 in the actuated position of the actuating elements 14 are essentially flush with an envelope of the connection arrangement 3, which corresponds to an imaginary body which surrounds the connection arrangement 3 in an enveloping manner. Because the actuating portions 141 do not protrude outwards from the outer housing 30 or only protrude insignificantly when the actuating elements 14 are in the actuated position, a user cannot easily move the actuating elements 14 out of the actuated position. Electrical lines can only be connected by inserting an electrical line 2 in the plug-in direction E into the plug-in opening 100 of a connection terminal 1, 1A, 1B, whereupon the connection terminal 1, 1A, 1B triggers automatically and the actuating element 14 is thus removed from the operated position.

Because a user operates by manually acting on the actuating element 14 is not easily possible in the actuated position, incorrect operation is largely ruled out. A user thus intuitively learns that the electrical line 2 has to be connected by inserting it into the plug-in opening 100 of the respective connection terminal 1, 1A, 1B and that the actuating element 14 is triggered automatically via the triggering element 13, without any separate user operation of the actuating element 14 is required.

In the actuated position of the actuating element 14, the connection arrangement 3 can be delivered to a customer by a manufacturer, for example.

The idea on which the invention is based is not limited to the exemplary embodiment described above, but can also be implemented in other ways.

While in the exemplary embodiment described above, all connection terminals of the connection arrangement are implemented by a functionally identical spring-loaded connection, this is not mandatory. The connection terminals of the connection arrangement can also differ from one another in terms of their function and design.

Reference symbol list

1, 1A, 1B, 1B

Connection terminal

10, 10A-C

Housing part

100

Plug opening

101

Recording room

102

Recording opening

103, 103'

Connection facility

104, 104'

Positive locking element

105

wall

106, 106'

wall section

107, 107'

Access opening

108, 108'

Locking element

109

Edge section

109A

Access opening

109B

Edge

11

Contact element (current bar)

110

Contact section

111

Contacting device

12

Clamping spring

120

clamping leg

121

Support leg

122

Intermediate section

13

Trigger element

130

Trigger leg

131

Locking device (locking opening)

132

Supportive

133

casserole element

134, 135

Positive locking element (recess)

136

Intermediate section

137

leg section

138

End

14

Actuator

140

Pivot axis

141

Actuation section

142

Access opening

143

Rest section

144

Effective section

145

head Start

146

Tool engagement

147

Ribs

148

external surface

149

Inner surface

15

Connector section

16

Management facility

160, 160'

Guide bridge

161, 161'

Guide bridge

17

Axial securing device

170, 171

Locking element

3

Connection arrangement

30

Outer casing

300

ceiling wall

301

bottom wall

31

Management facility

310, 310'

Guide bridge

311, 311'

Guide bridge

A

Arranging direction

b

Direction of operation

C

riot point

E

Plugging direction

M

Mounting direction

v

Vertical direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was 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

• DE 102019127464 B3 [0004, 0005, 0006]
• DE 102019135203 A1 [0006]
• DE 102020104140 A1 [0006]
• DE 202019105075 U1 [0009]
• DE 102019131141 A1 [0009]

Claims (23)

Connection arrangement (3) with at least one connection terminal (1, 1A, 1B) for connecting an electrical line (2) and a housing formed by at least one housing part (10, 10A, 10B), wherein the at least one connection terminal (1, 1A, 1 B) a contact element (11) arranged on the housing with a contact section (110) for electrical contact with an electrical line (2), a spring element (12) with a clamping leg (120) that can be adjusted relative to the housing and a clamping leg (120) that is pivotally arranged on the housing Has an actuating element (14), wherein the clamping leg (120) is designed to act in a clamping position on an electrical line (2) for contact with the contact section (110), the actuating element (14) having an actuating section (141) for actuation by a User and an active section (144) for acting on the clamping leg (120) and can be adjusted from a non-actuated position to an actuated position in order to transfer the clamping leg (120) into a release position in which the clamping leg (120) in comparison is removed from the contact section (110) for the clamping position, characterized in that the housing has two edge sections (109) which extend parallel to one another and which form a receiving opening (102) between them, in which the actuating section (141) of the actuating element (14) is inserted in the actuated position. Connection arrangement (3). Claim 1 , characterized in that at least one of the edge sections (109) has an edge (109B) delimiting the edge section (109), which in the actuated position of the actuating element (14) is arranged parallel to an outer surface (148) of the actuating section (141). Connection arrangement (3). Claim 2 , characterized in that the outer surface (148) is flush with the edge (109B) in the actuated position of the actuating element (14). Connection arrangement (3) according to one of the Claims 1 until 3 , characterized in that the actuating section (141) has an inner surface (149) pointing into the interior of the housing (10), the inner surface (149) being accessible from outside the housing (10) in the non-actuated position and in the actuated position Position is not accessible from outside the housing (10). Connection arrangement (3) according to one of the preceding claims, characterized in that the actuating element (14) has at least one projection (145) formed on the actuating section (141) which, in the actuated position of the actuating element (14), extends into a recess on at least one the edge sections (109) intervene. Connection arrangement (3) according to one of the preceding claims, characterized in that the actuation section (141) has a tool engagement (146) for attaching a tool. Connection arrangement (3) according to one of the preceding claims, characterized in that the actuating section (141) has at least one rib pointing outwards. Connection arrangement (3) according to one of the preceding claims, characterized in that the clamping leg (120) is designed to press or pull the electrical line (2) into contact with the contact element (11) by spring force. Connection arrangement (3) according to one of the preceding claims, characterized in that the spring element (12) has a support leg (121) which is supported on the housing and to which the clamping leg (120) can be elastically deflected. Connection arrangement (3). Claim 9 , characterized in that the support leg (121) of the spring element (12) is supported between two adjacent housing parts (10, 10A, 10B). Connection arrangement (3) according to one of the preceding claims, characterized in that the at least one connection terminal (1, 1A, 1B) has a trigger element (13) which is designed to release the clamping leg (120) from the release position with the electrical line (2) to work together when plugged into the connection terminal (1, 1A, 1B). Connection arrangement (3). Claim 10 , characterized in that the triggering element (13) has a triggering leg (130), the housing defining a receiving space (101) into which the electrical line (2) can be inserted by plugging it in, the triggering leg (130) being extends in the receiving space (101) to cooperate with the electrical line (2). Connection arrangement (3). Claim 12 , characterized in that the trigger element (13) has a supporting end (132) relative to which the trigger leg (130) is assembled act elastically with the cable (2) plugged into the connection terminal (1, 1A, 1B). Connection arrangement (3). Claim 13 , characterized in that the supporting end (132) of the trigger element (13) is supported between two adjacent housing parts (10, 10A, 10B). Connection arrangement (3) according to one of the Claims 11 until 14 , characterized in that the actuating element (14) is locked in the actuated position with the triggering element (13). Connection arrangement (3) according to one of the preceding claims, characterized in that the actuating element (14) is pivotally mounted between two adjacent housing parts (10, 10A, 10B). Connection arrangement (3) according to one of the preceding claims, characterized in that the housing is formed by a plurality of housing parts (10, 10A, 10B) which are lined up along a rowing direction (A). Connection arrangement (3). Claim 17 , characterized in that the edge sections (109) are formed by walls (105) of adjacent housing parts (10, 10A, 10B). Connection arrangement (3). Claim 17 or 18 , characterized by an outer housing (30) into which the housing parts (10, 10A, 10B) lined up along a line-up direction (A) can be inserted in an assembly direction (M), the outer housing (30) having a first guide device (31). at least one first guide web (310, 310', 311, 311') and the adjacent housing parts (10, 10A, 10B) have a second guide device (16) with at least one second guide web (160, 160', 161, 161'). , wherein the at least one second guide web (160, 160', 161, 161') of the second guide device (16) is inserted into the outer housing (30) when the aligned housing parts (10, 10A, 10B) are inserted in the assembly direction (M). on which at least one first guide web (310, 310', 311, 311') of the first guide device (31) is guided. Connection arrangement (3). Claim 19 , characterized in that at least one of the housing parts (10, 10A, 10B) has at least one second guide web (160, 160', 161, 161') which is attached to an associated first guide web (310, 310', 311, 311'). the first guide device (31) is guided. Connection arrangement (3). Claim 20 , characterized in that the at least one of the housing parts (10, 10A, 10B) has a wall (105) extending along a plane perpendicular to the rowing direction (A), from which the at least one second guide web (160, 160 ', 161, 161 ') protrudes along the rowing direction (A). Connection arrangement (3). Claim 21 , characterized in that at least one of the housing parts (10, 10A, 10B) has two second guide webs (160, 160 ', 161, 161') which are arranged on sides of the wall (105) facing away from one another. Connection arrangement (3) according to one of the Claims 19 until 22 , characterized in that the at least one first guide web (160, 160', 161, 161') and/or the at least one second guide web (310, 310', 311, 311') form a dovetail guide.

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