Current bar and connection arrangement having a current bar of this kind

Abstract

The invention relates to a current bar (200) for a connection arrangement (100) for connecting an electrical conductor (L), comprising a clamping portion (210), against which the conductor (L) inserted into the connection arrangement (100) in the insertion direction (E) can be clamped, wherein the clamping portion (210) comprises a first function zone (FZ1), a second function zone (FZ2) and a third function zone (FZ3).

Description

[0001] Current bar and connection arrangement with such a current bar

[0002] The invention relates to a current bar for a connection arrangement for connecting an electrical conductor. Furthermore, the invention relates to a connection arrangement with such a current bar.

[0003] It is known that a conductor to be connected is clamped against a current bar, for example, by means of a clamping spring, in order to establish electrical contact with the conductor. For this purpose, the current bar typically has a clamping section against which the conductor to be connected is clamped. The conductors to be connected can have a wide variety of designs and properties. For example, the conductors to be connected can be rigid or flexible. Furthermore, the conductors to be connected can have a small, medium, or large conductor cross-section.

[0004] The invention is based on the object of providing a current bar and a connection arrangement in which, regardless of the design of the conductor, good contact of the conductor when clamped against the current bar can be ensured.

[0005] 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.

[0006] The current bar according to the invention has a clamping section against which the conductor inserted into the connection arrangement in the insertion direction can be clamped, wherein the clamping section has a first functional zone, a second functional zone and a third functional zone.

[0007] According to the invention, the clamping section is therefore no longer designed the same over its entire surface, but rather the clamping section has different functional zones. The three functional zones differ from one another in their design. The first functional zone has a different design than the second functional zone, and the third functional zone has a different design than the first functional zone and the second functional zone. Each of the three functional zones forms a functional surface or contact area for one or more types of conductors to be connected. The three differently designed functional zones therefore allow different types of conductors to be connected equally well and safely. For example, the first functional zone can form a contact area for rigid conductors with a large cross-section.The second functional zone can form a contact area for conductors with a small conductor cross-section and / or for flexible conductors. The third functional zone can form a contact area for flexible conductors, in particular those with a medium or large conductor cross-section.

[0008] The three functional zones preferably extend along the length of the clamping section cut. Each of the three functional zones preferably extends across the entire width of the clamping section. Viewed in the insertion direction, the second functional zone is preferably formed below the first functional zone, and the third functional zone is preferably formed below the second functional zone. The second functional zone is preferably arranged between the first functional zone and the third functional zone. Viewed in the insertion direction, the three functional zones are thus preferably arranged one behind the other. The functional zones preferably border one another directly.

[0009] The first functional zone can preferably have at least one contact lug. The at least one contact lug can protrude from the surface of the clamping section in the direction of the conductor or the conductor connection space. The at least one contact lug is preferably designed such that it can press into and / or cut into the conductor resting against the first functional zone. The at least one contact lug is preferably designed with sharp edges. The at least one contact lug can enable direct insertion and connection, in particular of a rigid conductor. The first functional zone can also have more than one contact lug. If two or more contact lugs are formed on the first functional zone, they are preferably arranged one below the other as seen in the insertion direction.

[0010] The at least one contact lug can extend across the entire width of the clamping section. This allows the contact lug to act on the conductor to be connected over a larger outer circumferential surface of the conductor. Furthermore, the contact lug can interact with the conductor even if the conductor is not positioned centrally across the width of the clamping section.

[0011] The at least one contact nose can be designed in the form of an elongated contact rib, wherein the contact rib can then have a sharp or pointed edge surface along the length of the contact rib. If two or more contact noses are provided, each contact nose can be formed by such an elongated contact rib.

[0012] The second functional zone can have a flat contact surface. The contact surface is preferably smooth and without elevations. The flat contact surface enables secure contact, particularly with flexible conductors with a small conductor cross-section.

[0013] The third functional zone can have a grooved contour. Due to the grooved contour, the clamping section has an uneven surface in the area of ​​the third functional zone. The grooved contour can be designed, for example, in the form of a plurality of notches and / or grooves and / or ribbing. The grooved contour can ensure that, in particular, rigid conductors with a medium conductor cross-section and / or flexible conductors with a medium or large conductor cross-section can be displaced transversely when the clamping leg of the clamping spring impacts in order to clamp the conductor against the clamping section, thereby improving the contact quality of the clamping of the conductor against the current bar.

[0014] The groove contour may have longitudinal grooves extending in the insertion direction and / or transverse grooves extending transversely to the insertion direction and / or transverse grooves extending diagonally to the insertion direction and / or pyramid-shaped grooves.

[0015] The three functional zones can extend over different lengths of the clamping section. For example, the third functional zone can extend over a longer length than the first functional zone and the second functional zone. The object of the invention is further achieved with a connection arrangement which has a housing having a conductor insertion opening, a current bar arranged in the housing, and a clamping spring arranged in the housing, which clamping spring has a holding leg and a clamping leg, wherein the clamping leg can be moved into a clamped position and into an open position. Furthermore, the connection arrangement has a conductor connection space formed between a clamping section of the current bar and the clamping leg of the clamping spring, and an actuating element by means of which the clamping leg can be moved from the clamped position to the open position.The current bar is designed and developed as described above.

[0016] Such a connection arrangement with a current bar designed and further developed as described above enables the connection of a wide variety of conductor types, whereby good contact quality can be guaranteed for all types of conductors. A conductor inserted into the conductor connection space is clamped against the clamping section of the current bar by means of the clamping leg of the clamping spring and is thus clamped to varying degrees in the area of ​​the individual functional zones of the clamping section of the current bar, depending on the design of the conductor. The clamping spring is preferably designed as a leg spring, which has a holding leg and a clamping leg designed to be pivotable relative to the holding leg. The holding leg is preferably arranged in a fixed position.By pivoting the clamping leg of the clamping spring, it can be moved into an open position, in which the clamping leg is arranged at a distance from the current bar and a conductor to be connected can be inserted into or removed from the conductor connection space through a gap formed thereby between the current bar and the clamping leg, and into a clamping position, in which the clamping leg can bear against the current bar or the connected conductor in order to clamp the conductor against the current bar. The clamping leg is moved, in particular from the clamping position to the open position, by means of an actuating element. The actuating element is preferably guided in the housing for purely linear movement.

[0017] The connection arrangement can have a release element which engages with the clamping leg of the clamping spring in the open position and which is pivotally mounted in such a way that when the conductor to be connected is inserted in the insertion direction into the conductor connection space, the release element can be actuated in such a way that the release element is disengaged from the clamping leg of the clamping spring. The release element enables even a flexible conductor to be connected easily and safely and clamped against the current bar. As soon as the clamping leg has reached the open position, the clamping leg can engage with the release element so that the clamping leg is held in the open position by the release element, thus preventing the clamping leg from accidentally pivoting back from the open position into the clamping position.If the clamping leg is held in the open position by the release element, the actuating element can move back to its original position in the opposite direction to the actuating direction, so that when the clamping leg is in the open position, there is no longer any operative connection between the actuating element and the clamping leg. 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 clamping section of the current bar. The pivoting movement of the release element can be triggered by the conductor to be connected itself. For this purpose, the release element can have a pressure surface against which the conductor to be connected can strike when inserted into the conductor connection compartment in order to pivot the release element. For this purpose, the pressure surface can protrude into the conductor connection compartment.The pressure surface can define the conductor connection space in the insertion direction of the conductor to be connected. The pressure surface is preferably aligned with the conductor insertion opening of the housing.

[0018] In order to be able to hold the clamping leg in the open position, the release element can have at least one locking element with which the clamping leg can engage in the open position. The at least one locking element can form a type of counter-bearing for the clamping leg in the open position of the clamping leg. The clamping leg preferably locks with the at least one locking element in the region of its clamping edge. The locking element can, for example, be in the form of a locking tab against which the clamping leg can be clamped in the open position. The locking tab can preferably extend in a direction opposite to the insertion direction of the conductor. The locking tab can thus protrude from the pressure surface of the release element. The release element preferably has a first locking element and a second locking element. The two locking elements are then preferably designed at a distance from one another.The two locking elements are preferably designed to be identical in shape. The clamping leg can then be locked and held in the open position by both locking elements.

[0019] The at least one locking element is preferably positioned such that it extends along an edge of the conductor connection space. The at least one locking element can have an inclined surface along which the conductor to be connected can be guided. Due to the inclined surface, the at least one locking element can form a type of sliding surface in the insertion direction of the conductor to be connected into the conductor connection space. When the conductor to be connected is inserted into the conductor connection space, the conductor can thereby slide along the inclined surface, thus preventing the conductor to be connected from becoming caught on the at least one locking element during insertion into the conductor connection space.

[0020] The at least one locking element can be bent in an S-shape. This S-shaped bend ensures secure clamping or locking of the clamping leg to the at least one locking element in the open position of the clamping leg. Furthermore, the S-shaped bend can simultaneously form the inclined surface along which the conductor to be connected can slide.

[0021] However, the inclined surface can also be formed by a different type of angled surface, so that it does not necessarily have to be formed by a bend.

[0022] The trigger element is preferably formed integrally with the clamping spring. This allows the clamping spring to lock into itself when the clamping leg is in the open position. The trigger element is then preferably connected to the retaining leg of the clamping spring. The retaining leg can then be arranged between the clamping leg and the trigger element. Preferably, the trigger element has a smaller width than the retaining leg, particularly in the connection area of ​​the trigger element to the retaining leg, so that good pivotable mounting of the trigger element on the retaining leg of the clamping spring is possible. The trigger element can then be pivoted relative to the retaining leg. In order to be able to hold the clamping spring securely in the housing, the clamping spring can be held on the current bar. The clamping spring can thus be fastened to the current bar. Preferably, the clamping spring is held on the base section of the current bar.

[0023] To hold the clamping spring to the current bar, at least one opening can be formed on the current bar, into which the clamping spring can engage. The clamping spring can dip into the at least one opening and thus hook into it in order to be fastened to the current bar. For example, the clamping spring can engage with its holding leg in the at least one opening. For example, a web-shaped holding arm can be formed on the holding leg, which can engage in the opening in the current bar. Preferably, two such web-shaped holding arms can also be formed on the holding leg, wherein two openings can then also be formed on the current bar, so that the first web-shaped holding arm can engage in a first opening in the current bar and the second web-shaped holding arm can engage in a second opening in the current bar. The two holding arms and the two openings are preferably arranged at a distance from one another.The connection area of ​​the trigger element can then be formed on the holding leg of the clamping spring between the two holding arms.

[0024] Furthermore, to ensure the secure positioning of the clamping spring, the current bar can have a support section on which the clamping spring can be supported. The clamping spring can preferably be supported on the support section in the region of its retaining leg. For example, the support section can be formed by a tab punched out of the base section of the current bar and bent out of the plane of the base section.

[0025] A terminal block can have one or more such connection arrangements. The terminal block can, for example, be a terminal block that can be snapped onto a mounting rail. Furthermore, the terminal block can also be, for example, a printed circuit board terminal block. Furthermore, the connection arrangement can also be arranged in a connector, wherein one or more of the above-described, developed and refined connection arrangements can be arranged in a connector. The invention is explained in more detail below with reference to the accompanying drawings using preferred embodiments.

[0026] It shows

[0027] Fig. 1 is a schematic representation of a current bar according to the

[0028] Invention,

[0029] Fig. 2 is a further schematic representation of a current bar according to the

[0030] Invention,

[0031] Fig. 3 is a further schematic representation of a current bar according to the

[0032] Invention,

[0033] Fig. 4 is a further schematic representation of a current bar according to the

[0034] Invention,

[0035] Fig. 5 is a schematic representation of a connection arrangement according to the

[0036] Invention with the clamping leg of the clamping spring in an open position,

[0037] Fig. 6 is a schematic representation of a further connection arrangement according to the invention with the clamping leg of the clamping spring in a clamping position,

[0038] Fig. 7 is a schematic representation of the device shown in Fig. 5

[0039] Connection arrangement with a connected rigid conductor with a large conductor cross-section,

[0040] Fig. 8 is a schematic representation of the device shown in Fig. 5

[0041] Connection arrangement with a connected flexible conductor with a large conductor cross-section, and Fig. 9 is a schematic representation of the connection arrangement shown in Fig. 5 with a connected rigid conductor with a small conductor cross-section.

[0042] In Fig. 1, a current bar 200 is shown, against which a conductor L to be connected can be clamped in an electrically conductive manner.

[0043] The current bar 200 has a clamping section 210 and a base section 211 extending at an angle to the clamping section 210. In the embodiment shown here, the base section 211 extends at a 90° angle to the clamping section 210.

[0044] An electrical conductor L to be connected is clamped against the clamping section 210. The base section 211 can serve to receive and support the clamping spring 113.

[0045] The clamping section 210 has a first functional zone FZ1, a second functional zone FZ2, and a third functional zone FZ3. The three functional zones FZ1, FZ2, FZ3 differ from one another in their design and shape. Each of the three functional zones FZ1, FZ2, FZ3 serves to optimally position and clamp a specific conductor type, so that these three functional zones FZ1, FZ2, FZ3 can securely clamp and thus connect differently designed conductors L, regardless of their design, with a high contact quality against the clamping section 210 of the current bar 200.

[0046] Viewed in the insertion direction E of a conductor L, the second functional zone FZ2 is arranged below the first functional zone FZ1 and the third functional zone FZ3 is arranged below the second functional zone FZ2.

[0047] In the embodiment shown here, the first functional zone FZ1 has a contact nose 212. This contact nose 212 is designed in the form of an elongated contact rib, which has a sharp or pointed edge surface 212 over the length of the contact rib. With this edge surface 212, the contact nose can press into and / or cut into the connected conductor L. The contact nose 212 extends across the entire width BK of the clamping section 210. The contact nose 212 protrudes from the surface of the clamping section 210 in the direction of the conductor L or the conductor connection space 119.

[0048] The second functional zone FZ2, on the other hand, has a flat contact surface 214 that is smooth. The connected conductor L can thus rest flatly against the contact surface 214 of the second functional zone FZ2.

[0049] In the area of ​​the third functional zone FZ3, however, the clamping section 210 is uneven, since the third functional zone FZ3 has a groove contour 215. The groove contour 215 can be designed differently. In the embodiment shown in Fig. 1, the groove contour 215 has longitudinal grooves 216 extending in the insertion direction E. In the embodiment shown in Fig. 2, the groove contour 215 has transverse grooves 217 extending transversely to the insertion direction E. In the embodiment shown in Fig. 3, the groove contour 215 has diagonal grooves 218 extending diagonally to the insertion direction E. In the embodiment shown in Fig. 4, the groove contour 215 has pyramid-shaped grooves. In all embodiments, the groove contour 215 extends across the entire width BK of the clamping section 210.

[0050] The first functional zone FZ1 and the second functional zone FZ2 are designed identically in all embodiments shown in Figs. 1 to 4.

[0051] It can also be seen in all four embodiments shown in Figs. 1 to 4 that the third functional zone FZ3 extends over a larger length section of the clamping section 210 than the first functional zone FZ1 and the second functional zone FZ2.

[0052] A support section 220 is formed on the base section 211 of the current bar 200, against which the clamping spring 113 can rest, thereby holding the clamping spring 113 in position. The clamping spring 113 can rest on the support section 220 in the region of its holding leg 116. The support section 220 is formed here by a tab punched out and bent out of the base section 211. A connection arrangement 100 is shown in each of Figs. 5 to 9. Figs. 5, 7, 8, and 9 show a connection arrangement 100 according to one embodiment, and Fig. 6 shows a further connection arrangement 100 according to another possible embodiment.

[0053] The connection arrangement 100 comprises a housing 110. The housing 110 can be formed from an insulating material. The housing 110 has a conductor insertion opening 111 through which a conductor L to be connected can be inserted into the housing 110 in the insertion direction E.

[0054] A current bar 200 and a clamping spring 113 are arranged in the housing 110. By means of the clamping spring 113, a conductor L inserted into the housing 110 can be clamped against the current bar 200 and thus connected. In all connection arrangements 100 shown here in Figs. 5 to 9, the current bar 200 is designed according to the configuration shown in Fig. 1.

[0055] The clamping spring 114 is designed as a leg spring. The clamping spring 114 has a holding leg 116 and a clamping leg 117. The holding leg 116 is arranged in a fixed position in the housing 110. 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 210 of the current bar 200 when the clamping leg 117 is in the clamped position.

[0056] The conductor L is clamped in a conductor connection space 119 formed in the housing 110. The conductor L to be connected can be inserted into the conductor connection space 119 via the conductor insertion opening 111. The conductor connection space 119 is formed between the clamping section 210 of the current bar 200 and the clamping leg 117 of the clamping spring 113.

[0057] Viewed in the insertion direction E, in the connection arrangement 100 shown in Figs. 5, 7, 8, and 9, the conductor connection space 119 is delimited at the bottom by a trigger element 120. The trigger element 120 is pivotally mounted so that it can tilt. The trigger element 120 has a pressure surface 121 facing the conductor insertion opening 111, against which a conductor L can strike when inserted into the conductor connection space 119. If the conductor L strikes the pressure surface 121, a pivoting or tilting movement of the trigger element 120 in the insertion direction E occurs.

[0058] In the open position of the clamping leg 117 of the clamping spring 113, the trigger element 120 is in engagement with the clamping leg 117 in order to hold the clamping leg 117 in the open position, as shown, for example, in Fig. 1. If a conductor L to be connected now strikes the pressure surface 121 and a pivoting movement of the trigger element 120 in the insertion direction E occurs as a result, the clamping leg 117 comes out of engagement with the trigger element 120, whereby the clamping leg 117 can pivot in the direction of the conductor L in order to clamp the conductor L inserted into the conductor connection space 119 against the clamping section 210 of the current bar 200.

[0059] In the embodiment shown here, the trigger element 120 has two locking elements 122, as can be seen in Figs. 5 to 9. The two locking elements 122 are arranged at a distance from one another. Via these two locking elements 122, the clamping leg 117 can engage with the trigger element 120 in the region of its clamping edge 118 in the open position. As can be seen in particular in Fig. 5, in the open position, the clamping leg 117 can hook onto the two locking elements 122, so that the clamping leg 117 can be held in the open position via the two locking elements 122.

[0060] The two locking elements 122 extend from the pressure surface 121 opposite to the insertion direction E. The two locking elements 122 are positioned at the edge of the conductor connection space 119 such that the locking elements 122 delimit the conductor connection space 119. To prevent the conductor L from getting caught on the locking elements 122 when inserted into the conductor connection space 119, the locking elements 122 each have an inclined surface 123. The inclined surfaces 123 are formed on the locking elements 122 such that the inclined surfaces 123 are directed in the direction of the conductor connection space 119. The conductor L can slide along the inclined surfaces 123 when inserted in the insertion direction E.

[0061] The two locking elements 122 are identical in shape to each other. Here, the two locking elements 122 are each bent in an S-shape. The two locking elements 122 are each designed in the form of a locking tab that is bent out of the plane of the pressure surface 121 of the trigger element 120.

[0062] The trigger element 120 is formed integrally with the clamping spring 113. The trigger element 120 is directly connected to the retaining leg 116 of the clamping spring 113. The retaining leg 116 thus extends between the trigger element 120 and the clamping leg 117 of the clamping spring 113.

[0063] The trigger element 120 is integrally formed on the retaining leg 116 of the clamping spring 113 via a connection area 124. The connection area 124 has a smaller width than the retaining leg 116. The connection area 124 also has a smaller width than the trigger element 120 in the region of its pressure surface 121. Due to the small width of the connection area 124, the trigger element 120 can have good pivotability of the trigger element 120 relative to the retaining leg 116. The connection area 124 pivotally mounts the trigger element 120 on the retaining leg 116 of the clamping spring 113. The connection area 124 is designed in the form of a narrow web.

[0064] The clamping spring 113 is held on the current bar 200 via the base section 211 of the current bar 200. This allows for a firm and tilt-proof mounting of the clamping spring 113 on the current bar 200.

[0065] In order to transfer the clamping leg 117 from the clamped position to the open position, an actuating element 127 is mounted in the housing 110 for linear displacement. To transfer the clamping leg 117 from the clamped position to the open position, the actuating element 127 is displaceable in an actuating direction B. The actuating direction B extends parallel to the insertion direction E of the conductor L into the conductor connection space 119. In the initial position, as shown in Figs. 5 to 9, the actuating element 127 is no longer located between the clamping leg 117 of the clamping spring 113 and the clamping section 210 of the current bar 200. In the initial position, the actuating element 127 is positioned above the clamping spring 113.In the initial position, the actuating element 128 is positioned so far above the clamping spring 113 that the actuating surface 146 of the actuating element 127, with which the actuating element 127 presses on the clamping leg 117 when the clamping leg 117 is actuated, is also arranged above the clamping spring 113.

[0066] Fig. 5 shows the connection assembly 100 with the clamping leg 117 of the clamping spring 113 in the open position. The clamping spring 113 is locked in place by the clamping leg 117 being hooked onto the two locking elements 122 of the release element 120 in the region of its clamping edge 118, thus holding it in a fixed position.

[0067] The clamping leg 117 is hooked onto the two locking elements 122 outside the conductor connection space 119. Laterally, only the inclined surfaces 123 of the locking elements 122 protrude a little into the conductor connection space 119, so that a conductor L can slide along the inclined surfaces 123 when inserted into the conductor connection space 119.

[0068] When a conductor L is inserted into the conductor connection space 119 in the insertion direction E, the conductor L strikes the pressure surface 121 of the trigger element 120. This causes a tilting movement of the trigger element 120 in the insertion direction E, whereby the locking elements 122 also tilt and are thus moved away from the clamping leg 117. As a result, the clamping leg 117 is disengaged from the locking elements 122, so that the clamping leg 117 can automatically pivot away from the holding leg 116 in the direction of the conductor L in order to clamp the conductor L against the clamping section 210 of the current bar 200. This clamping position is shown in Figs. 7 to 9.

[0069] If the conductor L is to be released from the clamped position again, the actuating element 127 is moved in the actuating direction B. Due to the sliding movement of the actuating element 127, the actuating element 127 presses the clamping leg 117 away from the conductor L or from the clamping section 210 of the current bar 200 with its actuating surface 146, so that the clamping leg 117 is pivoted in the direction of the holding leg 116. The actuating element 127 applies a compressive force to the clamping leg 117 until the clamping leg 117 again engages with the triggering element 120 or with the locking elements 122 of the triggering element 120 and is thus in the open position. Fig. 7 shows a conductor L connected to the connection arrangement 100, which is rigid and has a large conductor cross-section.The conductor L inserted into the conductor connection space 119 is clamped against the clamping section 210 of the current bar 200 by means of the clamping leg 117 of the clamping spring 113. In particular, the conductor L is clamped against the first functional zone FZ1 of the clamping section 210, so that the conductor L makes contact with the contact nose 212 of the first functional zone FZ1.

[0070] Fig. 8 shows a conductor L connected to the connection arrangement 100, which is flexible and has a large conductor cross-section. The conductor L inserted into the conductor connection space 119 is clamped against the clamping section 210 of the current bar 200 by means of the clamping leg 117 of the clamping spring 113. In this case, the flexible conductor L is pressed widthwise by means of the clamping leg 117, particularly in the area of ​​the third functional zone FZ3, so that the individual strands LZ of the conductor L are pressed wide and pressed into the groove contour 215. During clamping, the strands LZ of the conductor L are displaced transversely by the clamping leg 117 and pressed into the groove contour 215 or into the longitudinal grooves 216.

[0071] Fig. 9 shows a conductor L connected to the connection arrangement 100, which is rigid and has a small conductor cross-section. The conductor L introduced into the conductor connection space 119 is clamped against the clamping section 210 of the current bar 200 by means of the clamping leg 117 of the clamping spring 113. In the area of ​​the first functional zone FZ1, the conductor L is pressed against the contact nose 212. The conductor L rests flatly against the flat contact surface 214 of the second functional zone FZ2, since the clamping leg 117 is clamped against the conductor L in the area of ​​the second functional zone FZ2. The flat contact surface 214 prevents the conductor L from being displaced into the groove contour 215 of the third functional zone FZ3 due to its small conductor cross-section, which would then prevent sufficient contact force from acting on the conductor L.

[0072] Fig. 6 shows a terminal assembly 100 without such a trigger element 120. Here, the clamping leg 117 is held in the open position by the actuating element 127. The current bar 200 corresponds to the current bar 200 as formed in the terminal assembly 100 shown in Figs. 5, 7, 8, and 9. List of reference symbols

[0073] 100 connection arrangement

[0074] 110 housings

[0075] 111 Conductor entry opening

[0076] 113 clamping spring

[0077] 116 holding legs

[0078] 117 clamping legs

[0079] 118 clamping edge

[0080] 119 Conductor connection compartment

[0081] 120 trigger element

[0082] 121 printing area

[0083] 122 locking element

[0084] 123 Inclined surface

[0085] 124 connection area

[0086] 127 Actuating element

[0087] 146 operating area

[0088] 200 power bars

[0089] 210 clamping section

[0090] 211 floor section

[0091] 212 Contact nose

[0092] 213 edge area

[0093] 214 contact surface

[0094] 215 Groove contour

[0095] 216 longitudinal grooves

[0096] 217 transverse grooves

[0097] 218 diagonal grooves

[0098] 219 pyramid-shaped grooves

[0099] 220 support section

[0100] E Insertion direction

[0101] B Actuating direction

[0102] BK Width of the clamping section

[0103] L Conductor LZ Strands

[0104] FZ1 First functional zone

[0105] FZ2 Second functional zone

[0106] FZ3 Third functional zone

Claims

Claims 1. Current bar (200) for a connection arrangement (100) for connecting an electrical conductor (L), with a clamping section (210) against which the conductor (L) inserted in the insertion direction (E) into the connection arrangement (100) can be clamped, wherein the clamping section (210) has a first functional zone (FZ1), a second functional zone (FZ2) and a third functional zone (FZ3).

2. Current beam (200) according to claim 1 , characterized in that, viewed in the insertion direction (E), the second functional zone (FZ2) is formed below the first functional zone (FZ1) and the third functional zone (FZ3) is formed below the second functional zone (FZ2).

3. Current beam (200) according to claim 1 or 2, characterized in that the first functional zone (FZ1) has at least one contact nose (212).

4. Current bar (200) according to claim 3, characterized in that the at least one contact nose (212) extends over the entire width (BK) of the clamping section (210).

5. Current beam (200) according to one of claims 1 to 4, characterized in that the second functional zone (FZ2) has a flat mounting surface (214).

6. Current beam (200) according to one of claims 1 to 5, characterized in that the third functional zone (FZ3) has a grooved contour (215).

7. Current beam (200) according to one of claims 1 to 6, characterized in that the groove contour (215) has longitudinal grooves (216) extending in the insertion direction (E) and / or transverse grooves (217) extending transversely to the insertion direction (E) and / or diagonal grooves (218) extending diagonally to the insertion direction (E) and / or pyramid-shaped grooves (219).

8. Current beam (200) according to one of claims 1 to 7, characterized in that the third functional zone (FZ3) extends over a larger length section of the The clamping section (210) extends as the first functional zone (FZ1) and as the second functional zone (FZ2).

9. Connection arrangement (100) for connecting an electrical conductor (L), comprising a housing (110) having a conductor entry opening (111), a current bar (200) arranged in the housing (110) which is designed according to one of claims 1 to 8, a clamping spring (113) arranged in the housing (110) which has a retaining leg (116) and a clamping leg (117), wherein the clamping leg (117) can be moved into a clamping position and into an open position, a conductor connection space (119) formed between the clamping section (210) of the current bar (200) and the clamping leg (116) of the clamping spring (113), and an actuating element (127) by means of which the clamping leg (116) can be moved from the clamping position to the open position.

10. Connection arrangement (100) according to claim 9, characterized in that a release element (120) is arranged in the housing (110), which engages with the clamping leg (116) of the clamping spring (113) in the open position and which is pivotably mounted such that when the conductor (L) to be connected is inserted in the insertion direction (E) into the conductor connection space (119) the release element (120) can be actuated in such a way that the release element (120) disengages from the clamping leg (116) of the clamping spring (113).

11. Connection arrangement (100) according to claim 10, characterized in that the release element (120) has at least one locking element (122) with which the clamping leg (116) engages in the open position.

12. Connection arrangement (100) according to claim 10 or 11, characterized in that the release element (120) is formed integrally with the clamping spring (113).

13. Connection arrangement (100) according to any one of claims 9 to 12, characterized in that the clamping spring (113) is held on the current bar (200).

14. Connection arrangement (100) according to any one of claims 9 to 13, characterized in that the current bar (200) has a support section (220) on which the clamping spring (113) is supported.

Images