ES2335702T3 - CONNECTION DEVICE FOR PLUGGING IN A SWITCHING ELECTRICAL DEVICE. - Google Patents

Abstract

Connection device suitable for plugging in at least one connection connection (82) made in a lowered position in a hole in the housing (84) on an access side (A1) of an electrical switching device (80) for a connection (40), and which also has at least one connection in the form of a switching contact support (82) accessible from the outside of a switching device of the switching device (80), also being made in the device switching (80) at least one pair of housing elements (AE), the connection device (10, 10a, 20) comprising - at least a first floating plug contact (12) for plugging on the connection of the connection ( 82), - at least one first plug hole (25) for the connection (40) leading to the plug contact (12), - at least one pair of switching elements (RE, 16, 18) whose direction of action is located online , whereby a positive releasable interlocking coupling can be achieved between the interlocking elements (RE, 16, 18) and the housing elements (AE) made in the switching device (80), where the individual elements of the pairs of housing elements (AE) and of the pairs of interlocking elements act mutually with a force coupling, characterized in that in the connection device (10, 10a, 20) there is a second contact (24) made as a sliding contact corresponding to a second plug hole (25 ''), which is located on the side of the connection device that is oriented towards the access side (A1) of the connection device and comprising a contact establishment device that is independent of the first plug contact (12).

Description

Connection device for plugging into a electronic switching device.

Technical aspect

The invention relates to a device of connection to plug in an electrical switching device, in particular for a contactor.

State of the art

In electrical switching devices, especially know connection techniques for contactors in that the connecting conductors connect to the device switching by means of screw or spring terminals. For the application and removal of connecting conductors is necessary use tools, usually screwdrivers.

Also known are devices that can Use without tools. Thus there are multiple devices electrical to which some connection devices correspond to them. There exists in a connection piece (connection device) by at least one pair of interlocking elements whose address of action is located on one line, and on the other connecting piece contrary there is at least one pair of elements of housing for the interlocking elements of the device connection, whose direction of action is located on the same line. Between the interlocking elements arranged in the device connection and housing elements a coupling occurs positive interlocking, releasable. An example of such connection devices with interlocking devices are found in document DE 195 35 836 A1.

A connection device is known (document EP-A-1 791 216) to plug over an electrical switching device, where in the device switching is carried out at least: a connection of connection recessed in a hole in the housing on an access side of the switching device for a rush, at least one couple of housing elements, and the connection device comprises at least one floating plug contact to plug in about the connection of connection; at least a first hole of plug for the connection leading to the plug-in contact; for the least one pair of interlocking elements whose address of action is located on a line and by which you can achieve a releasable positive interlocking coupling between interlocking elements and housing elements made in the switching device, where the elements of the couples of accommodation elements and of the interlocking couples act mutually with a coupling of force, where the at least one rush connection is realized as a switching contact support of the apparatus of switching of the switching device, and where in the connection device there is a second contact to which a second plug hole corresponds. The first and the second Contact are electrically linked together.

Also another device of connection (document EP-A-1 734 551) to plug into a switching device, where the connection device can be composed modularly based on single phase connection devices. Connection devices they are used to connect to the contact support of switching device switching device commutation. Each single-phase connection device comprises (same as in the aforementioned document EP-A-1 791 216) two holes plug to plug two conductor or line ends, which they are also in the same potential (in each of the single phase connection devices). The contacts of each single-phase connection device transmit a phase, so that in the two phases of the switching device of the device switching two plug devices can be switched single-phase, and where in the three phases of the switching apparatus three devices can be connected to the switching device single phase connection.

Exhibition of the invention

The object of the invention is to describe a connection device with interlocking devices for an electrical switching device, where it is not necessary make any changes to the device housing of connection, that is to say no additional application of elements of accommodation, and where at least two contacts are made independent, and where possible contact contacts with simple means.

The goal solution is found in the characteristic part of the main claim. Other more complete embodiments are found in the claims subordinates

The arrangement according to the invention is It consists of a connection device for an electrical device switching, where the at least one connection is connected realized as a switching contact support of the apparatus of switching of the switching device accessible from the outside, and where in the connection device there is a second contact to which a second plug hole corresponds.

This second contact is made preferably in a slot-shaped hole. The second contact comprises a contact establishment device independent of the first (own) contact and does not establish contact with no connection connection in the switching device but it serves the contact of a contact independent of the switching device, where the independent contact is preferably performed for the accommodation of a driver made as a flat profile. The slot-shaped hole is made in the transverse direction to the body (to the housing) of the connection device and is accessible from the side of the connection device, oriented towards the access side of the switching device The electrical potential of the connection Rush belonging to the first contact must be different from the electrical potential of the independent connection belonging to second contact, preferably contact is established with the mass potential

The second contact is made as a contact sliding, and is located on the side of the connecting device oriented towards the access side of the device commutation.

With the invention there is the possibility of achieve rapid interchangeability of basic components of a switching device, for example in the case of combinations engine start, because the wiring volume is reduced and can dispense with additional supports on support bars or adaptation, in particular as traction discharges for rush. You can also perform faster in service since a smaller number of handling operations

In a row of contactors arranged one together to another (for example in an electrical cabinet), there may be a bar flat received by all connection devices located in the contactors, so that you have the possibility to carry out through each connection device a potential communication with the flat bar (the so-called PE bar).

Other preferred embodiments are formulated to then, these can be done individually or combined with each other.

In the first and / or the second hole of plug is arranged a pressure plug terminal for a cable multi-threaded, the first and / or the second may be equipped plug socket with an unlocking device for the cable of multiple threads that has been introduced.

The connection device can be made with single-phase or multi-phase character. For a device polyphasic proceed in the connection device three floating plug contacts to plug each one over a connection of connection.

The connection device assembly can consist of two housing parts separable from each other. This is how it exists in the connection device a housing part for housing of the second contact, made separable from the base body of the connection device The junction between the housing parts it can be done by a dovetail guide with what which is possible to make a quick change of the pieces.

As for the accommodation elements and the corresponding interlocking elements is provided that the base body carry the interlocking elements corresponding to the housing elements in the switching device. In the part of the housing that carries the second contact there is no interlocking elements.

The couple of accommodation items in the switching device can be performed as a first destalonado on the access side and as a second destalonado in a side of the switching device perpendicular to the side of access. The second bead can be made as a hole of access for a tightening screw of the connection terminal.

The switching contact support in the switching device should be made as contact of a connection terminal.

As already mentioned the device connection must be made especially to plug it over an existing connection device as a contactor.

Brief description of the drawings

Other details and advantages of the invention are deduced from the following embodiments described by middle of the figures. These show

Figure 1: a schematic correspondence between the connection device and the switching device;

Figures 2A and 2B: a first device of single phase and a second, three phase connection;

Figure 3: a single-phase connection device in plugged position;

Figures 4A and 4B: another connection device With a releasable contact support.

The best way to carry out the invention

Figure 1 schematically shows the correspondence in the space of a connection device (10, 10a) (in section) with respect to a switching device 80 (in partial section). As switching device 80 is shown here by way of example a contactor, of which they are represented essentially: the access face (surface A1) with the holes 84, the upper face A2 (perpendicular to the surface A1), the clamping mechanism (86, 88), the contact support to the discovered (82, 83), an edge of the housing (89) and the plate of the background 81.

The connection device has a contact of plug 12 made as a tulip contact, which corresponds with switching contact support 82 on access side A1 of switching device 80.

The connection devices are characterized because they provide for another access to a contact (24) independent of the contact of the contactor (82, 83), through a second plug hole 25 '. It should preferably be possible establish contact with a ground conductor made as a bar flat 50. For this purpose, the independent contact 24 in a slot 22 in the form of a groove which is made in the transverse direction to the body (housing) of the connecting device and that is accessible by the side of the connection device It is on the device side of connection facing the access side A1 of the device 80 switching. The electrical contact with the flat bar can be perform as needed on each connection device by the introduction of a multi-wire cable or a conductor 44 in the second plug hole 25 '. To the second hole of 25 'plug can correspond, just like the first hole of plug 25, also an unlocking device that can be actuate by inserting in the hole 26 'a tool of unlock

The switching device has a device switching, as usual, but not represented in the He drew. Part of the switching device is the contact support switching 82 performed as current bar 83. In the contactor 80 is especially recognized by the drawing section the switching contact support 82, the insertion hole 84, the clamping screw 88 for the double frame terminal 86 and the AE access hole for pressure screw 88. The support of the switching contact 82 is accessible on the surface of access A1. In the exemplary embodiment, the contact support of switching 82 is performed as the central contact of a terminal of double frame. While the pressure screw 88 is not screwed, the end of the switching contact bracket that protrudes in the hole 84 towards the outside is freely accessible. How terminal you can also use a simple terminal in which middle of the pressure screw 88 a plate can be displaced directional pressure to the switching contact support 82, whereby you could press a multi-wire cable that I was inserted.

The connection devices 10, 10a, 20 are they consist of a body in which at least one first plug hole 25 for rush housing 40. The connection devices differ in that they are made or either single phase (Figures 2a, 3, 4a) or polyphasic (see Figure 2b, three phase). In a multi-phase embodiment there are several plug holes 25 located next to each other, corresponding with the connection connections in the device switching When inserting a multi-wire cable or a thread end of connection 40 in one of the holes in plug 25 an interlock occurs in a plug terminal a pressure that is not represented in greater detail, from which leads an inner conductor 13 (see Figure 1) to the contact of plug 12. To release the plug 40 that is inserted, you can There is an unlock device. Unlocking device it is accessible in the hole (26, 26 ') by means of a tool simple. The version shown in Figures 4a, 4b indicates an unlocking device 27 that works without a tool. He Unlocking takes place by pressing a button that stands out.

In the switching device there are various housing elements (AE) as parts contrary to interlocking elements located in the connection devices. To join the connection device with the device switching is essential that in the switching device just have to be present a couple of elements of reciprocal accommodation. The respective pairs of elements of reciprocal housing AE are at least one hole 87 in the face upper A2 and an edge 89 (parallel to the bottom plate 81) in the anterior face A1; or in another combination: at least one hole 87 on the upper face A2 and a bridge 89 'in the lower area of the switching device The corresponding elements of interlocking in the connection device would be the pair of interlocking elements 16 and 18a (see Figure 2a) or the pair of interlocking elements (interlocking projections circular) 16 and interlocking shoulder 18 (see Figure 2b). There could also be two interlocking projections 18 so that in the bottom of the switching device is possible double interlock. The pressure effect or the positive coupling with interlocking is represented in the Figures 1 and 2a by the pair of RS (rigid) and RF arrows (elastic).

The individual elements of the couples of housing elements (AE) and the individual elements of the pairs of interlocking elements act with each other producing a friction adjustment. The line of action of the reciprocal couple of interlocking and housing elements can run in horizontal, vertical or inclined direction. Reciprocity it is also determined by an interlocking measure that in the Figure 2a is indicated by the RM reference in the device connection 10a. Another measure represented is the depth ST to the which contact 12 can be inserted in the device switching (in hole 84).

AE access hole (a circular hole for the clamping screw 88 of the double frame terminal) acts here as a first bead breaker (see arrow RF4) and the other Reciprocal offset is edge 89 (see arrow RF3).

At the top of the connection device (s) an element of elastic interlocking (14, 14a) protruding at an angle, Like a lever arm. The elastic property is achieved by  a thinning of material, a bridge of narrow material or by making a film hinge. The element of interlocking (14, 14a) can be operated in this way manually Elasticly for interlocking or unlocking. The length of the lever arm and the distance of the elements of interlocking 16 to the switching device as well as its shape they are made in such a way that an interlocking can take place optimal in the housing elements AE in the device switching (contactor).

As an alternative embodiment is shown in Figures 4a and 5b a connection device 20 in which a part of the housing 20b is made separable from the base body 20a of the connection device 20. The connection between the parts of the housing is made by a guide in tail of milano 28a, 28b, which makes it possible to perform Quick replacement of parts. Figure 4a shows the situation in connected position and Figure 4b the situation separated from the housing part 20b. The housing part 20b made essentially as contact support is represented in section, whereby the possibility of contacting the rush 44 as well as the arrangement of the flat bar in the contact 24. In Figure 4b an element of interlocking 18b in the base body of the housing 20a, which fits at lower edge 89 (see also Figure 1, to the right).

On the upper face of the contactor are observed also holes 85 for other accesses. Here you could plug in the combined plug technique a reversible bridge for a control motor. Keep in mind that the length of the element of interlocking 14, 14a is chosen in such a way that the holes 85.

Claims (10)

1. Connection device suitable for plug in at least one connection (82) made in the lowered position in a hole in the housing (84) on one side of access (A1) of an electrical switching device (80) for a connection (40), and which also has at least one connection connection in the form of a switching contact support (82) accessible from the outside of a switching device of the switching device (80), also being performed in the switching device (80) at least one pair of housing elements (AE), comprising the connection device (10, 10th, 20)

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for the minus a first floating plug contact (12) to plug on the connection of the connection (82),

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for the minus a first plug hole (25) for the connection (40) that leads to the plug contact (12),

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how at least one pair of switching elements (RE, 16, 18) whose action direction is located online, by which you can get a positive interlocking interlocking coupling between the interlocking elements (RE, 16, 18) and the elements of housing (AE) made in the switching device (80), where the individual elements of the element pairs accommodation (AE) and interlocking pairs they act mutually with a force coupling,

characterized in that in the connection device (10, 10a, 20) there is a second contact (24) made as a sliding contact corresponding to a second plug hole (25 '), which is located on the side of the connection device that is oriented towards the access side (A1) of the connection device and comprising a contact establishment device that is independent of the first plug contact (12). 2. Connection device according to claim 1, characterized in that the second contact (24) is made in a groove-shaped hole (22). 3. Connection device according to claim 1, characterized in that the second contact (24) is made to accommodate a flat bar (50) made as a conductor. 4. Connection device according to claim 2 or 3, characterized in that the second contact (24) is made on the side of the connection device (10, 10a, 20) oriented towards the access side (A1) of the switching device ( 80). 5. Connection device according to one of the preceding claims, characterized in that a pressurized plug terminal for a multi-wire cable is arranged in the first connection hole (25) and / or in the second connection hole (25 '). (40, 44). 6. Connection device according to claim 5, wherein the first connection hole (25) and / or the second connection hole (25 ') are equipped with an unlocking device (27) for a multi - wire cable (40 , 44) that has been introduced. 7. Connection device according to one of the preceding claims, characterized in that in the connection device (10, 10a, 20) three floating plug contacts (12) are made to connect a supply connection (82) in each. 8. Connecting device according to one of the preceding claims, characterized in that the connecting device (20) a housing part (20b) for receiving the second contact (24) which is formed detachably from the base body is present ( 20a) of the connection device (20). 9. Connection device according to the preceding claim, characterized in that the housing part (20b) is arranged in the base body (20a) of the connection device (20) by means of a dovetail guide (28a, 28b). 10. Connection device according to one of claims 8 or 9, characterized in that the base body (20a) supports the interlocking elements (16b, 18b) corresponding to the housing elements (AE) in the switching device (80).