DE102010019022A1 - Clamping arrangement for an electrical device - Google Patents

Abstract

The invention relates to a clamping arrangement for an electrical device (10) with a connection zone (11) which has a plurality of connection poles (12), each connection pole (12) having a clamping unit (13, 13a, 13b) by means of which an electrical Conductor (14) is electrically connectable. The invention is characterized in that the connection zone (11) is designed in a modular manner in disks (15).

Description

The invention relates to a clamping arrangement for an electrical device having a connection zone, which has a plurality of terminal poles, wherein each terminal pole has a clamping unit, by means of which an electrical conductor is electrically connected.

Such a clamping unit to be incorporated in a housing of an electrical device establishes an electrical connection between the interior of the electrical device and the periphery. In this way, in particular sensors, actuators and also a power supply of the device can be connected, which is designed for example as a switching device.

There are two basic terminal types. One is the screw, in which a connected electrical line is inserted with one hand in the nip and held there and tightened a clamping screw with the other hand. The other basic type of terminal is the spring-type terminal, in which a tool, for example a screwdriver, is guided with one hand into an unlocking opening, with the other hand to introduce an electrical line to be connected in the unlocked clamping point and hold there until the terminal point after Removing the tool from the unlocking has unfolded their spring clamping effect. In both types of clamping basic so the sequential steps "loading" and "fixing" are always required. This makes systematic and efficient assembly difficult.

Often a lot of terminal points are needed so that they can not all be arranged side by side in the direction of a terminal or housing width. Therefore, there are multi-level clamping units with several staircase over and at least partially also arranged behind one another terminal rows. In such multi-level clamping units but the space requirement is relatively high both on the outside of the housing and inside the housing. Within the housing of the electrical device is thus less space for other functional elements, such as appropriately equipped printed circuit boards available.

In the known multi-level clamping units, it may also happen that the access to the terminal points of a rear terminal row is blocked by the inserted into a front terminal row lines. These lines must therefore either be bent aside or even completely removed. This is impractical and increases assembly times.

This describes the EP 2 031 705 A1 a clamping unit with several clamping points for electrical contacting. The clamping unit is intended for electrical contacting of an electrical device. It comprises a plurality of clamping points each designed to receive at least one electrical line or an electrical plug, wherein the lines or plugs can be inserted into the clamping point in an insertion direction. Furthermore, the clamping unit has at least one terminal row to which at least two clamping points arranged one behind the other in a deep direction perpendicular to the plug-in direction are combined, wherein the clamping points combined to form a terminal row each have their own clamping mechanism. Per terminal row a common operating element is provided, by means of which all terminal points of the respective terminal row can be actuated.

The disadvantage of this clamping unit is that it is designed as a block and has to be specially manufactured for the respective housing of an electrical device and is not individually adaptable.

Accordingly, the object of the present invention is to provide a clamping arrangement for an electrical device, which is easy to handle and is variably adaptable to the respective housing width.

This object is achieved by a clamping arrangement with the features of patent claim 1. Advantageous embodiments and developments, which can be used individually or in combination, are the subject of the dependent claims.

According to the invention this object is achieved by a clamping arrangement for an electrical device having a connection zone, which has a plurality of terminal poles, each terminal pole having a clamping unit, by means of which an electrical conductor is electrically connected. The invention is characterized in that the connection zone is modularly formed in slices. The present invention thus replaces the horizontal block shape with a vertical disc shape. This results in no variance in the widths, since depending on the width only several disc clamps must be mounted side by side. In this case, a clamping disc includes a plurality of connection elements, such as screw, spring or ring cable elements, which are arranged in this obliquely one behind the other. Due to the oblique arrangement one behind the other, more compact designs can be achieved, that is, the housing envelopes or device housings can be reduced thereby. By the invention Arrangement in disk construction, only one clamping variant, for example, with terminal housing width 7 mm needed, with this juxtaposed all device / housing widths preferably 17.5 mm, 22.5 mm 37.5 mm and 45 mm can be realized. Depending on the polarity requirement per device, this pole solution can be used to map every polar variance. This results in a considerable reduction in the number of variants compared with the construction principles customary on the market today.

In a particularly advantageous embodiment, the connection poles are arranged inside a disk in succession. The starting point is a housing with a top and a bottom, a front and a back and two side walls. The modular composable discs are arranged parallel to the side walls, that is, for the terminal poles that they are arranged one behind the other and parallel to the side walls. The invention accordingly consists in that the connection zone is subdivided into a plurality of disks with connecting poles, which can be joined together in the form of modules.

A particular advantage is when the clamping unit is installed obliquely in the disc. Due to the oblique arrangement one after the other, more compact designs can be achieved, which means that the device heights can be reduced. In addition, the leadership of the electrical conductors is distorted, which are now largely out in the sockets of the terminal poles and thus also contribute to the device heights can be reduced.

In a particularly advantageous embodiment, it is provided that the plurality of terminal poles is designed as a screw-clamping element within a disc. In a screw-clamping element to be connected electrical line is introduced with one hand in the terminal point and held there and tightened a clamping screw with the other hand.

In a further advantageous embodiment, it is provided that the plurality of connecting poles is designed as a spring clamping element within a disc. In a spring clamp a tool, for example a screwdriver is inserted with one hand in an unlocking to introduce with the other hand an electrical line to be connected in the so-unlocked nip and hold there until the nip after removing the tool from the unlocking their Spring clamping effect has unfolded.

Cable lugs ensure simplified electrical contacting of the conductors of cables or of individual cables by screwing or plugging. Essentially, three types of cable lugs are distinguished. In addition to the types with a screwed sleeve, these are the crimp cable lugs and the press cable lugs. In Krimpkabelschuhen the conductor receptacle is formed by a metal sheet, which is bent laterally upwards. When crimping, this area including the conductor end is inserted into a crimping tool or machine. This bends the metal tabs in and down on the conductor end, so that there is a kidney-shaped cross-section. Often, two more metal tabs are also present at the location of the end of the conductor insulation, so that there can be produced in the same way a strain relief and kink protection. Both crimping operations can be performed either separately or simultaneously. Press cable lugs have a thicker, often closed, sleeve-shaped conductor receiving, which is deformed with a crimping pliers, so that a positive and positive connection results with the conductor. There are different pressing tongs, which are used for certain cross-sectional areas, since the cross-section of the sleeve must match that of the conductor.

In a particularly advantageous embodiment, it is provided that the modularly designed in slices connection zone is variable to the respective housing width composable. This has the advantage that the arrangement in disk construction requires only one clamping variant, with the adjacently arranged all device / housing widths, such as 17.5 mm, 22.5 mm, 37.5 mm and 45 mm, can be realized. Depending on the polarity requirement per device, this pole solution can be used to map every polar variance. This results in a considerable reduction in the number of variants compared with the construction principles customary on the market today.

The clamping arrangement according to the invention for electrical equipment with a connection zone, which is modularly composed of discs, is characterized in that it is particularly easy to use and is variably adaptable to the respective housing width. Due to the arrangement in disk design, only one clamping variant, for example, with a clamping housing width of 7 mm is required, with which arranged side by side all device / housing widths can be realized. Depending on the pole requirement, each pole variance can be formed per device with this body mounting solution. This results in a considerable reduction in the number of variants compared with the construction principles customary on the market today.

Further advantages and embodiments of the invention will be explained below with reference to embodiments and with reference to the drawing.

Here are shown schematically:

1 in a perspective view of an electrical device with clamping unit in block construction of the prior art;

2 in a perspective view of a screw clamping unit in block construction of the prior art;

3 in a perspective view different device widths in block design from the prior art;

4 in a perspective view of an inventive electrical device with a clamping arrangement for electrical connections in disc design;

5 in a sectional view of a connection plate according to the invention with screw clamping unit;

6 in a perspective view of the screw-clamping unit according to 5 .

7 in a perspective view of a connection plate according to the invention with spring-clamping unit;

8th in a perspective view different device widths in disc design.

1 shows an electrical device 1 with a connection zone 2 with clamping units 3 in block construction from the prior art. Block construction means that the electrical device has a certain housing width, for which the clamping unit 3 is specially made.

In 2 is a screw-clamp unit 4 shown in block design from the prior art. In this case, the connection zone is designed such that the screw clamping units 4 are formed next to each other. If one goes from a housing like in 3 illustrated, with a front side 5 , a back 6 , a top 7 , a base 8th and two side walls 9 off, so are the screw-clamp units 4 parallel to the front and back 5 . 6 arranged.

3 shows three electrical device 1 . 1a . 1b in block design for different device widths, such as 17.5 mm, 22.5 mm and 45 mm, which must be manufactured especially for the respective device width.

4 shows an inventive electrical device 10 with a connection zone 11 that has a plurality of connection poles 12 having, each terminal pole 12 a clamping unit 13 by means of which an electrical conductor 4 is electrically connected. Here is the connection zone 11 modular in slices 15 built up. Due to the arrangement in disk construction, only one clamping variant, for example, with a clamping housing width of 7 mm is required, arranged side by side with all device / housing widths, such as 17.5 mm, 22.5 mm, 37.5 mm and 45 mm can be realized. Depending on the pole requirement, each pole variant can be imaged per device with this body solution. This results in a considerable reduction in the number of variants compared with the construction principles customary on the market today.

In the 5 and 6 is the connection plate according to the invention 15 with a screw clamping unit 13a shown. The screw clamping units 13a are inside the connection disk 15 arranged one behind the other and thus formed parallel to the side walls of a housing. The individual screw clamping units 13a are preferably arranged parallel to one another and obliquely one behind the other. In this context, diagonally means that the individual screw clamping units 13a are neither formed parallel to the top or bottom of a housing, nor to the front and back. It would also be conceivable, the screw-clamping units 13a not offset obliquely parallel to each other to arrange.

7 shows a further embodiment of a connection plate 15 with a spring-clamping unit 13b , The spring clamping units 13b are inside the connection disk 15 arranged one behind the other and thus formed parallel to the side walls of a housing. Just like the screw clamping units 13a are also the spring-clamping units 13b arranged obliquely to each other.

8th shows different housing widths in disk construction. The electrical appliances 10 . 10a . 10b are modular from individual connection disks 15 constructed and can be assembled for the corresponding housing width.

The clamping arrangement according to the invention for electrical equipment with a connection zone, which is modularly composed of discs, is characterized in that it is particularly easy to use and is variably adaptable to the respective housing width. Due to the arrangement in disk construction, only one clamping variant, for example, with a clamping housing width of 7 mm is necessary with which arranged side by side all device / housing widths can be realized. Depending on the pole requirement, each pole variance can be formed per device with this body mounting solution. This results in a considerably high Variant reduction compared to the usual construction principles on the market today.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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

• EP 2031705 A1 [0006]

Claims (7)

Clamping arrangement for an electrical device ( 10 ) with a connection zone ( 11 ) having a plurality of connection poles ( 12 ), each terminal pole ( 12 ) a clamping unit ( 13 . 13a . 13b ), by means of which an electrical conductor ( 14 ) is electrically connected, characterized in that the connection zone ( 11 ) modular slices ( 15 ) is trained. Clamping arrangement according to claim 1, characterized in that the connection poles ( 12 ) within a disc ( 15 ) are arranged one behind the other. Clamping arrangement according to claim 1 or 2, characterized in that the clamping unit ( 13 . 13a . 13b ) obliquely in the disc ( 15 ) is trained. Clamping arrangement according to one of claims 1 to 3, characterized in that the plurality of terminal poles ( 12 ) within a disc ( 15 ) as a screw clamping element ( 13a ) is executed. Clamping arrangement according to one of claims 1 to 3, characterized in that the plurality of terminal poles ( 12 ) within a disc ( 15 ) as a spring clamp element ( 13b ) is executed. Clamping arrangement according to one of claims 1 to 3, characterized in that the plurality of terminal poles ( 12 ) within a disc ( 15 ) is designed as a ring cable element. Clamping arrangement according to one of the preceding claims, characterized in that the modular slices ( 15 ) connection zone ( 11 ) is variable to the respective housing width composable.

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