EP3238306A1

EP3238306A1 - Connecting terminal and method for fitting a connecting terminal

Info

Publication number: EP3238306A1
Application number: EP15826021.6A
Authority: EP
Inventors: Hans Josef Köllmann
Original assignee: Wago Verwaltungs GmbH
Current assignee: Wago Verwaltungs GmbH
Priority date: 2014-12-22
Filing date: 2015-12-17
Publication date: 2017-11-01
Anticipated expiration: 2035-12-17
Also published as: CN107112648B; CN110148842B; DE102014119421B4; CN110148843A; CN110148842A; US20170331200A1; US10033119B2; DE102014119421A1; WO2016102322A1; EP3238306B1; CN110148843B; CN107112648A

Abstract

The invention relates to a connecting terminal (100) for connecting at least two electrical conductors to one another, wherein the connecting terminal (100) has at least two separate housing parts (1, 2) which are mechanically connected to one another and each have a conductor insertion opening (10, 20) for at least one electrical conductor which is to be connected on opposite housing sides, wherein there is a first spring-force clamping connection (31, 120) for making electrical contact with a first electrical conductor in a first housing part (1) of the at least two separate housing parts (1, 2), and there is a second spring-force clamping connection (32, 220) for making electrical contact with the second electrical conductor in the second housing part (2) of the at least two separate housing parts (1, 2). The invention also relates to a method for fitting a connecting terminal (100) for connecting at least two electrical conductors.

Description

Connection terminal and method for mounting a Verbindun terminal

The invention relates to a Verbindungsklennnne for connecting at least two electrical conductors with each other, wherein the connecting terminal has at least two separate housing parts which are mechanically connected to each other and on opposite sides of the housing each have a Leitereinführöffnung for at least one electrical conductor to be connected, wherein in a first housing part of at least two separate housing parts a first spring terminal connection for electrically contacting a first electrical conductor and in the second housing part of the at least two separate housing parts a second spring terminal connection for electrical contacting of the second electrical conductor is present. The invention also relates to a method for mounting a connection terminal for connecting at least two electrical conductors.

Such connection terminals with conductor insertion openings arranged on opposite housing sides, which are also referred to as double terminals, are known e.g. known from DE 10 2013 101 830 A1. US Pat. No. 7,628,640 B2 discloses a connection terminal with two separate housing parts, each of which forms one half of the connection terminal. To form the entire connection terminal, the two parts can be put together. They are electrically connected to each other by an electrical connector and at the same time mechanically held together via the connector. Accordingly, the electrical connector is loaded with mechanical stresses during operation of the connection terminal, which can lead to increased wear of the connector and, accordingly, to a deterioration of the electrical contact.

The invention has for its object to provide a connection terminal for connecting at least two electrical conductors, which is modular with at least two separate housing parts, but does not have the disadvantages of the aforementioned connection terminal. Furthermore, an advantageous tes method for mounting such a connection terminal can be specified.

The object is achieved by a connecting terminal for connecting at least two electrical conductors to one another, wherein the connecting terminal has at least two separate housing parts, which are mechanically connected to each other and on opposite sides of the housing each have a Leitereinführöffnung for at least one electrical conductor to be connected, wherein in a first housing part the at least two separate housing parts a first spring terminal connection for electrically contacting a first electrical conductor and in the second housing part of the at least two separate housing parts a second spring terminal connection for electrical contacting of the second electrical conductor is present, wherein the first housing part with the second housing part on on the respective housing part trained coupling agent is mechanically coupled.

In this way, a modular connection terminal is provided, which provides a secure and permanently reliable electrical contact and connection of the electrical conductors with each other at the same time high mechanical robustness. By formed on the respective housing part coupling means, which may be formed in particular integrally with the respective housing part, forces acting on the outside of the connection terminal are absorbed and kept away from the electrical contacts. Thus, the manufacturing and logistics advantages of a modular connection terminal can be used, without causing technical disadvantages.

Here, the first housing part may be directly coupled to the second housing part, or indirectly via another component. In this respect, the coupling means formed on the respective housing part of the first and the second housing part can be directly in engagement with each other, or indirectly via an additional component. A further advantage of the invention is that the proven construction of known, very compact individual terminals, as shown for example in DE 10 2013 101 409 A1, can be transmitted to connection terminals, in particular double terminals. Thus, in particular, an embodiment with compactly accommodated in the housing lever-operated opening mechanism can now be realized as a connection terminal.

The connection terminal according to the invention may be formed as a single connection terminal, in which only the two conductor insertion openings arranged on opposite housing sides are provided, or as a multiple connection terminal, e.g. such that a plurality of individual connection terminals are arranged in a row next to each other. In particular, an electrical connection, e.g. via a common bus bar, between adjacent connection terminals of the row of connection terminals.

It should be noted that the connection terminal is not an electrical connector. Electrical connectors are basically constructed differently than connecting terminals, since the electrical connectors are designed for multiple mating and loosening of the connector parts, while a connection terminal, in particular the connection terminal according to the invention, although modularly formed of several parts, but not after the assembly of the housing parts renewed disassembly or release of the housing parts from each other is designed. Thus, the coupling means for mechanical coupling of the housing parts, e.g. be designed as a snap or snap connection, in particular as such a compound that is not again without damage or open only with special tools.

For electrical connection between the Federkraftklemmanschlüsse the connection terminal can be arranged, for example, in the first and in the second housing part in each case a busbar piece. The busbar pieces can then be connected to each other by a plug or screw connection.

According to an advantageous development of the invention, the connection terminal has a bus bar extending from the first spring terminal connection to the second spring terminal connection. The busbar may in particular be made in one piece from a metallic material. This has the advantage that the electrical connection between the electrical conductors to be interconnected by the connection terminal is optimized and a high current carrying capacity can be realized. In addition, the continuous busbar supports the mechanical stability of the connection terminal.

According to an advantageous development of the invention, the first housing part is mechanically coupled to the second housing part via a connecting part arranged in the transition region from the first to the second housing part and designed as a separate component. In this way, an additional component is introduced, which serves for the mechanical coupling of the housing parts of the connection terminal and can additionally exert a supporting and thus increasing the stability of the connection terminal effect. The connecting part may be e.g. be formed in the manner of a center piece or a support member. As will be explained below, the connecting part can be designed as a multifunctional component with additional functions.

The connecting part may be made of an insulating or a non-insulating material, e.g. made of plastic or metal. In particular, the connecting part may be made of the same material as the first and the second housing part. The first and the second housing part are made of an insulating material, in particular of plastic.

According to an advantageous development of the invention, the first housing component and / or the second housing component by means of a latching or Snap connection mechanically connected to the connecting part. This allows a simple and quick assembly of the parts of the connection terminal, usually without tools, as well as an ergonomic and size optimized design of the connection terminal. Thus, the coupling means can be advantageously designed as a latching hook and designed as a counterpart locking recesses.

According to an advantageous development of the invention, the connecting part has a relative to the conductor insertion direction of the first and / or the second housing part substantially perpendicularly arranged partition wall between the first spring terminal connection and the second spring terminal connection, which serves as a conductor stop. The conductor stopper causes the conductor inserted into a conductor insertion opening to be inserted no further than a predetermined position. Due to the conductor stop, this maximum insertion position is haptically easy to detect. The partition may e.g. be arranged in the transition region from the first to the second housing component.

According to an advantageous development of the invention, the connecting part has at least one conductor insertion section arranged in the conductor insertion direction or at an angle to the conductor insertion direction of the first and / or the second housing part. The conductor insertion portion serves to guide a conductor inserted into a conductor insertion opening to a defined position within the connection terminal. The conductor can slide along the conductor insertion section.

By the aforementioned, further features of the connecting part, this can be carried out as a multi-functional component, which can realize one or more of said additional functions in addition to the actual connection function between the housing parts of the connecting terminal.

According to an advantageous development of the invention, the first housing Part formed with the second housing part overlapping at least on one side of the housing. This has the advantage that at least a part of the mechanical coupling means of the first and the second housing part interact directly with each other and accordingly can bring about a high mechanical stability of the connection terminal. Another advantage is that such an overlapping housing areas an improved sealing effect of the interior of the connection terminal relative to the environment can be realized.

According to an advantageous development of the invention, such overlapping housing regions of the housing parts are arranged at least on the housing side of a busbar of the connection terminal closest to one another. This has the advantage that the aforementioned sealing effect can be realized in particular at one point without additional effort, at which the main current-carrying component, namely the busbar, is arranged. In this way, standardized air and creepage distances of the connection terminal can be provided with little effort.

According to an advantageous development of the invention, the overlapping housing areas have locking means designed as coupling means.

According to an advantageous development of the invention, overlapping housing areas have a length of at least 30% of the length of a busbar of the connection terminal. The length dimensions are measured in one direction along the conductor insertion direction, ie. along the longitudinal axis of the busbar.

According to an advantageous development of the invention, a spring-force clamping connection of the connection terminal is formed by at least one clamping spring in connection with a conductor clamping region of a busbar of the connection terminal. This has the advantage that the Federkraftklemman- conclusion can be realized in a simple manner with a few components. This results in a mechanically robust and reliable spring-loaded clamping formed connection.

According to an advantageous embodiment of the invention, the clamping spring on at least one clamping leg and at least one plant leg. A spring force clamping connection of the connecting terminal is then formed by a clamping leg of the clamping spring in conjunction with the conductor clamping region of the busbar. The plant leg serves to support the clamping spring.

According to an advantageous development of the invention, the busbar of the connection terminal has at least one stamped-out, angled material region on which the abutment leg of a clamping spring is supported. The material region punched out of the busbar can in particular be formed with a window-like opening. This has the advantage that the Federkraftklemmanschluss can be conveniently provided as a preassembled unit by a clamping spring of the connecting terminal is mounted with its plant leg in the window-like opening, in particular on a crosspiece formed there, and the clamping legs on Leitererklemmbereich a busbar.

According to an advantageous development of the invention, a lever-operated opening mechanism for opening the nip of the respective spring force clamping connection is arranged on the first housing part and / or on the second housing part, the opening mechanism having a pivotable actuating lever. By such an operating lever a high ease of operation of the connection terminal is realized. A user can open and close the nip at any time without additional tools.

According to an advantageous development of the invention, the actuating lever is arranged on another housing side of the housing of the connecting terminal than on such a housing side, which has overlapping housing areas. In particular, the actuating lever or can Operating lever may be arranged on a housing side, which is opposite a housing side with overlapping housing portions. In this way, the one or more operating levers can be arranged to save space on the housing of the connection terminal, so that there is a compact, small-sized connection terminal despite the additional existing operating lever.

According to an advantageous embodiment of the invention, the actuating lever has two spaced-apart side wall portions which are at least partially immersed with a pivot bearing area in the first and the second housing part and spaced from each other to the pivot bearing area with a transverse web to a lever arm. The

Schwenklagerbereiche the spaced-apart side wall portions of an actuating element thereby form an axis of rotation about which the actuating element is pivotally mounted in the respective housing part. An associated spring terminal connection is then at least partially received in the space between the pivot bearing areas of an actuating element.

The actuating element thus forms an approximately U-shaped actuating lever in the section, which accommodates the spring force clamping connection at least partially in the free space bounded laterally by the side wall sections. The pivot bearing areas are thus not above, not below, not in front of or not behind the Federkraftklemmanschluss, but laterally next to the Federkraftklemmanschluss or to be operated clamping spring of Federkraftklemmanschlusses.

For a very compact connection terminal is realized in which the actuating lever with the laterally arranged next to the Federkraftklemmanschluss in the housing part pivot bearing areas is stored stable and robust in the housing part pivotally.

The pivot bearing areas have operating sections which are each used for aufschlagung an associated clamping spring of a Federkraftklemman- circuit upon pivoting of the actuating element of a closed position in which the actuating element is pivoted with its crosspiece in the direction of the housing part and a terminal formed by the Federkraftklemmanschluss terminal for clamping an electrical conductor is closed, in an open position in which the actuating element pivoted away with its crosspiece of the housing part and a terminal formed by the Federkraftklemmanschluss open terminal for clamping an electrical conductor, are formed.

Two operating portions are arranged at the pivot bearing portions of the side wall portions at a smaller distance from each other than the distance between the side wall portions. The actuating portions extend parallel to the side wall portions and are integrally formed with the side wall portions so that in each case a guide slot between an actuating portion and the associated, directly adjacent side wall portion is present. In each case, a guide web of the housing part then immersed in an associated guide slot for guiding the actuating element during pivotal movement about a pivot axis in the pivot bearing area.

With the help of the side walls of the U-shaped lever arm by an intermediate guide slot spaced actuating portions is achieved that the lever arm can be tiltably supported tiltable by a dipping into a respective guide slot guide web of the housing part. With the help of the guide slots and the guide webs engaging therewith can be realized in a space-saving very stable pivot bearings, which lie substantially laterally next to the Federkraftklemmanschlüssen.

Due to the interplay of the measures described an extremely compact connection terminal is realized, the pivot lever are stably mounted in the housing part swivel without affecting the at least one Swivel lever acting actuator forces the housing part excessively.

According to an advantageous embodiment of the invention, the actuating element is matched with the housing part and the associated Federkraftklemm- connection that the pivoting of the actuating element acting from the closed position to the open position on the crosspiece lever pivoting force as well as that of the operating sections upon pivoting of the actuating element of the Closed position in the open position acting on the clamping spring acting spring force relative to the axis of rotation on the same page.

By positioning the axis of rotation in the housing part by appropriate design of the pivot bearing areas and by appropriate arrangement of the actuating portions relative to the clamping spring is achieved that the lever applied to the actuating lever from the outside lever pivotal force acts with respect to the axis of rotation on the same side to the axis of rotation as that of the Operating portions applied to the clamping spring spring actuating force. This kinematics is realized, which allows a very compact design of a conductor terminal with optimum power transmission. In particular, it can be achieved that the lever pivoting force and the spring actuating force in the same direction, d. H. works up or down. The term "upward" is understood to mean a principal direction independent of the exact extension angle corresponding to the direction of extension of an opened lever arm which points towards the free end. "Downward" is understood to mean the opposite direction irrespective of the exact angular position. It is therefore not important that the forces act equally parallel to each other.

A particularly compact design with optimal guidance and storage of the actuators can be achieved if the adjacent side wall sections of two side by side arranged in the housing part actuators directly adjacent to each other. The outer walls of the tenwandabschnitte side by side actuators serve for mutual guidance and give the adjacent actuator an additional grip.

According to an advantageous embodiment of the invention, the actuating portions have a part-circular outer periphery with a V-shaped notch to form a protruding in the direction of the center of the operating portion paragraph. The at least one Federkraftklemman- circuit each has a busbar section and a clamping spring with an actuating tab. The actuating tab of the clamping spring is on pivoting of the actuating element for opening a clamping point formed between a clamping edge of the clamping spring and the busbar section for clamping an electrical conductor on the shoulder.

With the help of such a paragraph, followed by an overlying free space, a stable support for an actuating tab of the clamping spring is provided so that the spring actuating force is optimally transmitted through the paragraph on the clamping plate of the clamping spring. By projecting in the direction of the center of the operating section paragraph overlying free space is provided so that the clamping spring otherwise can lift freely even without lever operation of the paragraph to exert a spring clamping force on the electrical conductor unaffected by the lever arm.

According to an advantageous embodiment of the invention, the side wall sections of an actuating element with such a trained

Crosspiece connected to each other, that extends the crosspiece in the swung-up state of the actuating element, in which the nip is opened, from the free end of the side wall portions to the housing part. Thus, an optimal stability of the lever arm is achieved in particular with regard to the torsional strength and buckling safety taking advantage of the available space. According to an advantageous development of the invention, the transverse web projects beyond the free end of the side wall sections which lies opposite the pivot bearing region. This provides an approach to gripping the crosspiece and applying a lever pivoting force. By the projecting end of the crosspiece, the lever arm can be better grasped by hand or with a screwdriver to open under attack.

A very stable and tolerance minimized mounting of the actuating elements in the housing part can be achieved if the pivot bearing areas are mounted on a portion of a busbar of the associated spring terminal connection. The usually very stable, massive busbar forms a support for the actuator, so that the busbar with the associated clamping spring and the actuator with respect to the force and moment effect are essentially self-supporting, without greater forces and moments when operating the Federkraftklemmanschlusses Swiveling the actuating element act on the housing part.

Furthermore, it is advantageous if the outer contours of the actuating sections lie in the space between the plane spanned by a busbar of the associated spring terminal connection and a plane spanned by a contact leg of the associated spring terminal connection. This allows a very compact design with optimum force of the actuator on the spring terminal connection.

According to an advantageous embodiment of the invention, it is proposed that the actuating element has two spaced Hebelarmabschnitte, which are at least partially immersed with a pivot bearing portion in the housing part and spaced from each other to the pivot bearing portion with a transverse web to a lever arm connected to each other that on the side of the housing part, on which the at least one actuating element is arranged, the at least one spring-force clamping connection being covered by an outer boundary wall of the housing part and extending from the outer On both sides of the boundary wall adjacent to each associated spring clamp terminal connection side wall portions extend into the interior of the housing part, and that the Hebelarmabschnitte of the actuating element in the direction of the housing swung down, closed state of the respective actuating element to a respectively associated side lying next to a Federkraftklemmanschluss adjacent tenwandabschnitt.

According to an advantageous embodiment of the invention, a portion of an outer boundary wall of the housing part is arranged in the closed state of the respectively associated actuating element directly below the transverse web of the associated actuating element in a free space which is formed by the transverse web and adjoining Hebelarmabschnitte. The free space formed in the volume of the pivot lever by the transverse web and the adjoining Hebelarmabschnitte space is thus at least partially filled in the closed state of the pivot lever by a U-shaped housing wall section with its upper boundary wall of the housing part and projecting into the interior of the housing part side wall portions. This space is thus used to accommodate a cross-sectionally U-shaped housing wall portion and thus improve the air and creepage distances in a compact design.

According to an advantageous embodiment of the invention, a gap between the in the closed state of the respective actuating element directly below the transverse web of the associated actuating element lying outer boundary wall of the housing part and an adjacent conductor insertion opening boundary wall for a conductor insertion opening is present. Then, the space between the conductor insertion opening and the crosspiece in the closed state of the actuating element, that is, when folded down pivot lever, not completely filled with the insulating material. Rather, an air space between the boundary wall for the conductor insertion opening and the directly on the crosspiece adjacent outer boundary wall of the housing part available. Such a gap can be used in an advantageous embodiment as a test opening.

The above-mentioned object is further achieved by a method for mounting a connection terminal for connecting at least two electrical conductors to one another with the steps:

a) mounting clamping springs of the connection terminal in a busbar of the connection terminal,

b) placing a connecting part on the busbar,

c) put the actuating lever over the clamping springs as far as the busbar and move to a predetermined open position,

d) pushing on a first and a second housing component on the preassembled unit of clamping springs, busbar and connecting part,

e) mechanically connecting the first and second housing parts with each other and / or with the connecting part.

In this way, the connection terminal can be mounted quickly and with little effort, in particular substantially without tools. Also an automated assembly, e.g. by robots, it is supported.

The invention will be explained in more detail by means of embodiments using drawings.

Show it

Figure 1 is a connection terminal in side sectional view and

2 shows the connection terminal according to FIG. 1 along the sectional plane A - A of FIG. 1 and FIG

FIG. 3 shows a detail of the housing part shown on the left in FIG

Sectional view with the operating lever open and

Figure 4 shows the operating lever in perspective and Figure 5 shows the operating lever in a side sectional view and

6 shows a connecting part of the connecting terminal according to FIG. 1 in FIG

Top view and

Figure 7 corresponding to the connecting part according to Figure 6 in front view

Figure 2 and

Figure 8 shows a busbar in perspective and

Figure 9 is a plan view of a busbar with a partially finished and a finished area.

In the figures, like reference numerals are used for corresponding elements.

The connection terminal shown in FIG. 1 has a first housing part 1 and a second housing part 2. The housing parts 1, 2 have a parting plane arranged perpendicularly in Figure 1 and are arranged in a "back-to-back" arrangement against each other, only in the lower part do the housing parts 1, 2 overlap with respective housing sections 16, 26. The housing parts 1, 2 have a conductor insertion opening 10, 20, a test opening 11, 21, a clamping spring 12, 22 arranged in the housing part 1, 2 and a lever-operated opening mechanism with an actuating lever 13, 14 and 23, 24, which is provided for opening a nip of respective spring terminal connections.

In the interior of the housing parts 1, 2, a bus bar 3 is further arranged, which is made of electrically conductive metallic material. The busbar 3 is, as can be seen in Figure 1, integrally formed as a continuous busbar, which extends from the first housing part 1 to the second housing part 2 over. A conductor clamping region 31 of the busbar 3, which is arranged in the first housing part 1, forms, together with a terminal leg-side end 120 of the clamping spring 12, a first spring-force terminal connection. Accordingly, a second housing part 2 forms an arranged conductor clamping region 32 of the busbar 3 with a clamping leg-side end 220 of the clamping spring 22 a second spring clamp terminal.

The busbar 3 has out of the plane of the conductor clamping areas 31, 32 upwardly bent, punched-out material regions 33, 34, 35, 36, each forming a window-like opening 37, 38, as shown in Figure 8. A respective abutment arm side end 121, 221 of the respective clamping spring 12, 22 is inserted into a respective window-like opening 37, 38 and is supported on a horizontally extending transverse web 35, 36 of the upwardly bent material regions of the busbar 3 from. In order to fix the respective clamping spring 12, 22 in a slightly prestressed state in the position recognizable in FIG. 1, in which no electrical conductor is inserted into the respective conductor insertion opening 10, 20, in the respective conductor clamping areas 31, 32 of the busbar 3 are wave-shaped Deformations molded.

A conductor to be inserted into the respective conductor insertion opening 10, 20 is introduced in a conductor insertion direction L, as shown in FIG. In the respective test port 1 1, 21, a test pin can be inserted to e.g. to measure the voltage applied to the respective clamping spring 12, 22 voltage with a measuring device.

The housing parts 1, 2 are on the one hand via their overlapping housing portions 16, 26 mechanically coupled to each other. For this purpose, e.g. the first housing part 1 a latching lug 17, and the second housing part 2 in the housing portion 26 has a recess 27. The latching lug 17 can then engage behind a latching edge which is formed on an edge of the recess 27, whereby the housing parts 1, 2 fixed together become.

For additional mechanical coupling of the housing parts 1, 2 to each other and for additional mechanical stabilization of the entire structure of the connecting terminal 100 has this as another component a connecting part 4, which is located in the interior of the housing parts 1, 2 in the transition region of the one housing part 1 and to the other housing part 2. The connecting part 4 has an inside of the upper housing side of the housing parts 1, 2 arranged and, for example, adjacent thereto support portion 44. This support portion 44 provides a mechanical support of the housing parts 1, 2 against transverse forces, ie forces transverse to the conductor insertion direction L. Furthermore, for mechanical coupling of the housing parts 1, 2 to each other in the upper region of the housing parts 1, 2 respective locking lugs 18, 28 are present behind latching edges, which are formed by upper transverse webs 45, 46 of the connecting part 4, are engaged.

The connecting part 4 has further functionalities. From the support region 44, the connecting part 4 extends over a gap 43 to a T-shaped material region formed on its underside, i. in an area in which the electrical conductors to be inserted are to be arranged, as conductor guide portions 41, 42 formed inclined regions. As a result, inserted into the respective conductor insertion opening 10, 20 electrical conductors are guided to a defined position within the connection terminal. In order to limit the insertion depth of the electrical conductors, a conductor stop 40 is provided, which may also be formed on the connection part 4, e.g. in the form of the recognizable in Figure 1, substantially vertical wall.

As a result, the connecting part 4 together with corresponding inner cavities of the housing parts 1, 2 corresponding ladder receiving spaces for receiving in each case at least one electrical conductor, which are opposite to each other. Here are the opposite conductor insertion openings 10, 20 on a common plane. The busbar 3 is thus a common busbar for the first and the second spring-terminal connection.

To open the nip of the respective spring terminal connection in a simple and ergonomic way, especially without additional tools To be able to, the already mentioned opening mechanisms with the operating levers 13, 14 and 23, 24 are present. For this purpose, each actuating lever on a lever arm 14, 24 which is coupled to an actuating disc 13 and 23, respectively. Upon pivoting of the respective actuating lever as a result of a movement of the lever arm 14, 24, the actuating disk 13, 23 performs a corresponding rotational movement about a central axis, which is also an axis of rotation. In this case, the respective clamping spring 12, 22 is deflected at its terminal leg end 120, 220 upwards, ie in the direction of the plant leg end 121, 221 out. As a result, the terminal point is released, so that an already clamped electrical conductor can be easily removed or an inserted conductor can be inserted without effort. The respective actuating disk 13, 23 is supported at the bottom and at the back on a bearing contour 15, 25, which is present within the respective housing part 1, 2, for example in one piece with the respective housing part 1, 2 is formed.

FIG. 2 additionally shows the structure of the connection terminal according to FIG. 1 in a cross-sectional view along the sectional plane A-A, as shown in FIG.

FIG. 3 shows the mode of operation of the respective opening mechanism for opening the clamping point of a respective clamping contact on the basis of the spring terminal connection shown on the left in FIG. a section of the arranged in the first housing part 1 components. The operation and the structure in the second housing part 2 are identical (mirror-symmetrical).

FIG. 3 shows the opening mechanism when the lever arm 14 is pivoted upwards, so that the clamping point of the spring force terminal connection is open. It can be seen that the clip leg end 120 of the

Clamping spring 12 is now spaced from the conductor clamping region 31 of the busbar 3. This is done by a rotation of the actuating disk 13, the actuating portion 130 presses against the clamping leg of the clamping spring 12 and this deflects upwards. It can also be seen in FIG. 3 that the actuating lever 13, 14 can have a side wall 140, by which the mechanical connection between the lever arm 14 and the actuating disk 13 is produced and which contributes to an additional mechanical stabilization of the opening mechanism.

From the combination with the figure 8 it is clear that the part-circular actuating discs 13 are located next to the conductor insertion direction L extending busbar tabs 31 and therefore completely in the bearing recesses 15 of the housing part 1 (down and forward) are added. To the rear, the actuating discs 13 supported against the frame 33 of the busbar 3 from.

FIG. 4 shows a perspective view of an actuating lever 13, 14 from the underside. From this, the in principle U-shaped configuration with two spaced-apart side wall portions 140 can be seen, which are connected at their free end on a side edge with a transverse web 136 with each other. It is clear that the side wall portions 140 taper from the pivot bearing side end portions 141 to the free end. It can be seen that an actuating bead 137 is present at the free end of the crossbar 136. It is also clear that the transverse web 136 protrudes with the actuating bead 137 forward over the free ends of the side wall portions 140, wherein the inside of the transverse web 136 is inclined at the free end edge. This counteracts slippage when a lever actuating force of the lever arm 14 is applied.

It can also be seen that the actuating disks 13 have part-curved outer end sides 136, with which the actuating lever 13, 14 is mounted pivotably about a virtual axis of rotation 131 in the housing part 1.

The axis of rotation 131 extends through the center of a through the Au ßenstirnseite 136 formed pitch circle.

It can also be seen that part-circular actuating disks 13 spaced apart from the side wall sections 140 with a guide slot 132 are arranged with a V-shaped recess 133. In the region of the V-shaped incisions 133, an actuating portion 134 is formed in each case, which serves to act on an associated clamping leg of a clamping spring 12, 22 with a spring actuation force. It can be seen that the actuating portions 134, as well as the transverse web 136, on which a lever pivoting force is exerted, lie on the same side relative to the axis of rotation 131. As a result, the spring actuating forces FF exerted on the actuating sections 134 act on the same side relative to the axis of rotation 131 as the lever pivoting force applied to the transverse web 136 for pivoting.

It is also clear that of the transverse web 136 on the side opposite to the actuating bead 137, a locking lug 135 projects approximately in the direction of the actuating disk 14 and the portion 31. The locking lug 135 serves to lock the actuating lever 13, 14 in the closed position with the housing part. 1

FIG. 5 shows a side sectional view through the actuating element 4 from FIG. 4. It is once again clear that the side wall sections 140 are connected by a transverse web 136 connecting them to the upper side of the actuating element 14. The crosspiece 136 extends only over a partial region of the length of the side wall sections 140 and preferably occupies more than half the length of the side wall sections 140.

Figures 6 and 7 show the connecting part 4 in an individual representation in additional views. It can be seen in particular that between the upper transverse webs 45, 46, which form the latching edges for the latching lugs 18, 28 of the housing parts 1, 2, in conjunction with lateral webs 48, a window-like open ner area 47 of the connecting part 4 is formed. In this, then, in the assembled state of the connection terminal, as shown in Figure 1, the locking lugs 18, 28 are arranged.

The connection terminal 100 may be formed as a single connection terminal or as a multiple connection terminal. When designed as a single-connection terminal, e.g. a busbar 3 according to Figure 8 is used. When formed as a multiple connection terminal e.g. Double connection terminal, a busbar according to Figure 9 can be used. Here, a plurality of busbars according to FIG 8 are arranged side by side and connected to each other via electrically conductive material webs.

In addition, it can be seen from FIG. 9 how advantageously the busbar can be produced in its final shape from a flat metal part. First, a flat metal part, e.g. provided by a punching process with the desired shape. In this case, those material regions 33, 34, 35, 36, which are intended to be angled upward to form the window-like opening 37, 38, are punched out of the material. They can then be angled upward by a bending process, as shown in the lower area on the left in Figure 9. The wavy contour in the conductor clamping areas 31, 32 can be generated by a bending or embossing step.

Claims

claims:

1 . Connecting terminal (100) for connecting at least two electrical conductors together, wherein the connecting terminal (100) has at least two separate housing parts (1, 2) which are mechanically connected to each other and on opposite sides of the housing in each case a Leitereinführöffnung (10, 20) for at least one have in a first housing part (1) of the at least two separate housing parts (1, 2) a first Federkraftklemmanschluss (31, 120) for electrically contacting a first electrical conductor and in the second housing part (2) of the at least two separate housing parts (1, 2) a second spring terminal connection (32, 220) for electrical contacting of the second electrical conductor is provided, wherein the first housing part (1) with the second housing part (2) formed on the respective housing part (1, 2) coupling means ( 16, 17, 18, 26, 27, 28) is mechanically coupled thereby in that the first housing part (1) is additionally mechanically coupled to the second housing part (2) via a connecting part (4) arranged as a separate component in the transition region from the first to the second housing part, wherein the connecting part (4) is located inside the housing parts (1, 2) in the transition region of the one housing part (1) to the other housing part (2).

Second connecting terminal according to the preceding claim, characterized in that the connecting terminal (100) has one of the first spring terminal connection (31, 120) to the second spring terminal connection (32, 220) continuous busbar (3).

3. Connecting terminal according to the preceding claim, characterized in that the connecting part (4) with respect to the conductor insertion direction (L) of the first and / or the second housing part (1, 2) substantially vertically arranged partition wall (40) between the first spring terminal connection ( 31, 120) and the second spring clamp circuit (32, 220), which serves as a conductor stop.

Connecting terminal according to one of claims 2 to 3, characterized in that the connecting part (4) at least one in the conductor insertion direction (L) or obliquely to the conductor insertion direction (L) of the first and / or the second housing part (1, 2) arranged conductor guide portion (41, 42).

Connecting terminal according to one of the preceding claims, characterized in that the coupling means (16, 17, 18, 26, 27, 28) are designed as latching hooks and designed as counterpart locking recesses.

Connecting terminal according to one of the preceding claims, characterized in that the first housing part (1) with the second housing part (2) is formed overlapping at least on one side of the housing.

Connecting terminal according to the preceding claim, characterized in that overlapping housing regions (16, 26) are arranged at least on the side of the housing closest to a bus bar (3) of the connecting terminal (100).

Connecting terminal according to one of claims 6 to 7, characterized in that the overlapping housing portions (16, 26) as latching (17, 27) formed coupling means.

Connecting terminal according to one of the preceding claims, characterized in that a spring-loaded terminal (31, 32, 120, 220) of the connecting terminal (100) is formed by at least one clamping spring (12, 22) in conjunction with a conductor clamping area (31, 32). a busbar (3) of the connection terminal (100).

Connecting terminal according to the preceding claim, characterized indicates that the clamping spring of the first and / or the second Federkraftklennnnanschlusses is formed as a separate from the busbar (3) component. 1 1. Connecting terminal according to the preceding claim, characterized in that the clamping spring of the first and / or the second spring terminal connection is hooked into the busbar (3) and is fixed in this way.

Connecting terminal according to one of the preceding claims, characterized in that on the first housing part (1) and / or on the second housing part (2) a lever-operated opening mechanism for opening the nip of the respective spring terminal connection (31, 32, 120, 220) is arranged, wherein the Opening mechanism (13, 14, 23, 24) has a pivotable actuating lever (13, 14, 23, 24).

Method for mounting a connection terminal (100) for connecting at least two electrical conductors to one another with the steps:

a) mounting clamping springs (12, 22) of the connecting terminal (100) in a busbar (3) of the connecting terminal (100), b) placing a connecting part (4) on the busbar (3), c) actuating lever (14, 24) put on the clamping springs to the busbar and move in a predetermined open position, d) pushing a first and a second housing component (1, 2) on the preassembled unit of clamping springs (12, 22), busbar (3) and connecting part (4) .

e) mechanically connecting the first and second housing parts (1, 2) with each other and with the connecting part (4).