DE102010046103A1 - Electrical switching device - Google Patents

Abstract

The invention relates to an electrical switching device (10) with a control unit (12) and with a separate switch part (14), preferably for low voltage up to 690 V, which are in operative connection with each other via a switching means transmitting the switching operation, wherein for actuating the control panel a Rotary movement of a control lever arranged on the operating lever (22) is provided, while the switching operation of the switch part (14) is provided linearly, wherein the operating part (12) arranged rotary lever (22) is connected to a non-rotatably mounted on a common axis of rotation actuator (26) , and with the interposition of a positively driven transmission element (25) with a slide-like sliding part (30) cooperates, which acts on the switch part (14) arranged shift lever (20).

Description

The invention relates to an electrical switching device, in particular a power switching device for low voltages up to 690 V, which has a control panel with a rotary handle as a lever with a rotation axis and a separate switch part, which are mutually operatively connected via a switching operation transmitting switching means, wherein for actuating the Operating part, a rotational movement of a control part arranged on the rotary lever is provided, while the switching operation of the switch part is provided linearly.

Electrical switching devices have long been known. Here, the relevant switching devices are assigned in terms of their voltage to be switched and their switching power according to the respective voltage levels and power ranges. Accordingly, switching devices are divided into high, medium and low voltage switching devices as well as normal and power switching devices and then differentiated.

From the DE 2815758 is an electrical switchgear with a built-up of profile rails cabinet frame, in which at least one modular insert is installed, which has a plate-like component, are mounted on the electrical switching, control and regulating devices.

In the DE 10 2005 016 545 an electrical switchgear is described, in particular a low-voltage or medium-voltage switchgear, with at least one switchgear module, in particular a plug-in module, known which has a module front with a control device which is arranged integrated in the module front, so that the module front forms an integral part of the switchgear module ,

A variant of the known switchgear module is designed as a plug-in module and has a control unit and a separate switch part, which is formed by a known conventional switch, preferably a circuit breaker, wherein the control panel simultaneously forms the front of the plug-in module. On the control panel a rotary handle is provided as a lever with a rotation axis. The control element arranged on the control lever in this case performs a rotary actuator, while the switching operation is provided on the switch part linear.

In the aforementioned switchgear module, the available space is poorly utilized because of the design-related lateral mounting position of the switch part, in which the switching lever located on the switch part to a longitudinal side of the plug-in module available space within the plug-in module, because the rotational movement of the front side rotary lever is transmitted by means of a arranged on the respective longitudinal side of the plug-in module, pivotable about a pivot point rigid deflection lever on the shift lever located on the switch part. In this case, the actual front side of the switch part to the respective longitudinal side of the plug-in module.

As a result, the interface of the previous operating mechanism for the device-specific setting is very difficult to access and the cable management consuming, so that because of the separate arrangement of the control panel a switch-specific setting of the switch part or its replacement is not possible without effort.

Based on this prior art, it is an object of the invention to provide a switching device of the type mentioned, which is simple in design and the switch part is easily replaceable.

This object is achieved by the characterizing features of claim 1.

Accordingly, the invention provides that the control part arranged on the rotary lever rotatably with its axis of rotation and arranged thereon, also rotatably connected to the rotation axis actuator is provided, which actuator cooperates with an at least partially positively guided transmission element which acts on the switch part.

This makes it possible to install the switching device according to the invention in an optimal mounting position in the module and thus to ensure that the setting interface is easily accessible without other components must be removed.

In an advantageous embodiment of the invention, the actuator performs upon actuation of the control unit attached rotary lever due to the accompanying rotational movement of its axis of rotation pivotal and thereby acts on the transmission element, which is preferably designed according to the invention as bidirectionally effective, force and movement transmitting switching means.

The actuator connected to the axis of rotation of the rotary lever may be formed in an advantageous manner as an adjusting lever, which follows the rotational movement of the rotary lever.

In a further development of the switching device according to the invention, the switching means connects the Actuator with an actuating element which acts on the switch part.

The positively driven transmission element forms the already mentioned switching means, which is designed according to a first variant as a cable, which transmits the actuating forces for switching operation.

In this case, the cable is preferably formed by a steel wire which connects the actuator with the shift lever located on the switch part and causes its switching operation when the rotary lever on the control unit changes its rotational position.

Preferably, the positive guidance of the steel wire is carried out using deflection rollers.

According to a particularly preferred variant of the invention, the cable is arranged in a ring and cooperates with at least two guide rollers which guide the steel wire, as well as with an actuating part, which is preferably similar to a carriage which is guided for example on the switch part, and for actuating the on the switch part located shift lever is used.

Here, the two pulleys are arranged so that on the one hand ensure precise the deflection of the rotational movement of the actuator and on the other hand provide sufficient space for the operation of the shift lever.

The cable may be formed by a continuous steel wire or two separate steel wires, which are coupled in each case as a ring assembly. With this design, a bidirectional force is transmitted to the shift lever.

According to an alternative embodiment of the invention already mentioned switching means is designed as a Bowden cable, wherein the positive guidance of the switching means according to the invention is formed by a tight fitting, tubular or tubular shell, which also serves as a connecting part between the control panel and the switch part and on the other hand as a mechanical guide of the switching means and as an abutment for the transmitted actuating forces.

The Bowden cable is preferably made of a steel wire or steel cable as the so-called Bowden cable, and a - as already stated - flexible, preferably in compression and compression compression-resistant shell, which resists any change in length.

Because the Bowden cable core is guided in close tolerance and can not emigrate, according to an advantageous embodiment of the invention, a bidirectional operation of the switching means is possible and also provided as needed.

In a further improvement of the invention, a tubular or tubular sheath is provided for guiding the switching means, which is used as a sheathing of the switching means of dimensionally stable insulating material, preferably of a plastic, such as tetrafluoroethylene (PTFE), polyamide (PA) or acrylonitrile-butadiene-styrene. Copolymer (ABS) is formed, which envelope is provided inside with a sufficiently smooth surface for improved lubricity of the Bowden cable core.

Further, the shell for the switching means may also be formed by a tightly wound, pressure-resistant spiral known per se or preferably additionally encased with such a tightly wound, pressure-resistant spiral which is capable of absorbing reaction forces from the Bowden cable core, for example compressive forces , Thus, in place of a transmission of tensile force through the Bowden cable in an equivalent manner, a force exerted by the shell and the sheath pressure force can be achieved.

According to a further advantageous embodiment of the switching device according to the invention, the switching device has a common base on which the control panel and the switch part arranged are stationary.

It proves to be particularly advantageous that the common base is designed as a support rail and serves as a bottom part of a device drawer.

A further preferred embodiment of the invention provides that the control panel and the switch part are fixed at a defined distance from each other and are connected in one piece, but nevertheless releasably connected to one another in a simple manner.

According to an expedient development of the switching device according to the invention, the switch part is single or multi-pole, wherein for triggering the switching operation of all switch poles a single common shift lever is provided.

In a particularly advantageous manner, the switching device according to the invention is characterized in that the switching means is connected at its end facing away from the actuator with a slider which serves for switching operation of the switch part.

In this case, it is preferably provided that the slider acts on the switching lever provided on the switch part, wherein the slide on a Recording is provided for the shift lever, in which engages the shift lever.

A particularly advantageous embodiment of the invention is characterized in that the switching device is designed with control panel and switch part as a slide-in switch, wherein the control panel forms the front of the slide-in switch.

These and other advantageous embodiments and improvements of the invention are the subject of the dependent claims. Other combinations of features not explicitly specified in the claims are also part of the invention.

Reference to an embodiment of the invention shown in the accompanying drawings, the invention, advantageous embodiments and improvements of the invention and particular advantages of the invention will be explained and described in detail.

Show it:

1 a schematic diagram of a first variant of a switching device according to the invention with a steel cable operated switching operation in side view;

2 the switching device according to 1 in plan view from above;

3 a schematic of a second variant of the switching device according to the invention with a means of Bowden operated switching operation in side view;

4 the switching device according to 3 in top view from above.

1 shows a side view of a switching device according to the invention 10 with a control panel 12 and a switch part 14 , which on a support rail designed as a support rail 16 arranged and attached thereto and serve to be arranged as a slot in a control cabinet or console not shown in detail.

In this way, the switching device 10 if appropriate electrical safety precautions are taken out at any time and exchangeable.

The control panel 12 as well as the switch part 14 of the switching device 10 are each designed as standard modules, which offer the possibility that they are suitable for use in various switching devices and can interact with each other adapted to specific switching requirements intermediate components with each other. They are on one as trunking rail 16 formed profile facing the front with a front wall 18 with handle arranged thereon 19 is provided.

The switch part 14 of the switching device 10 has a Einstellinterface, which is easily accessible and makes it easy to customize the switch part to the particular use.

Furthermore, the switch part 14 with a gear lever 20 provided, which according to the invention by means of a switching means 25 with one on the control panel 12 arranged rotary lever 22 works together and from this rotary lever 22 over a rotary shaft 24 is operable.

The rotary lever 20 is non-rotatable with the rotary shaft 24 connected and has at its inside the switching device 10 located end also rotatably arranged adjusting wheel 26 , on which the remote control of the shift lever 20 provided switching means 25 is arranged, which in this embodiment is a steel cable, which on the actuating roller 26 is wound up.

In detail, the operation of the switching device takes place 10 by first acting as a rotary lever 220 trained switching actuator is adjusted accordingly, for example, at a right angle.

This rotational movement must now be translated into a translatory movement to the shift lever 20 on the switch part 14 to press. To implement this sequence of movements serves the already mentioned switching means 25 , which is for remote control of the shift lever 20 serves.

To ensure a play-free operation, pulleys 28 provided by means of which the steel wire 25 is virtually forced and the rotational movement of the rotary lever 22 in a linear movement to act on the shift lever 20 transforms.

It proves to be advantageous, the steel wire 25 preferably in the form of a closed ring, so that depending on the operation of the rotary lever 22 the one from the steel wire 25 acted shift lever 20 This movement follows and the switching on or off of the switch part 14 by appropriate action on the rocker lever designed as a rocker lever 20 by means of a carriage 30 makes, transversely to the tilt axis of the shift lever 20 movable (double arrow P) and with the switching means 25 connected is.

The rotary lever 22 is non-rotatable about a common axis of rotation with the in 2 also shown thumb wheel 26 connected to his, the rotary lever 22 and thus the front of the switching device 10 remote end is arranged and at a distance from the axis of rotation with a pivot point for the switching means 25 is provided, that is, in this embodiment for the steel wire 25 ,

According to the rotation of the adjusting wheel 26 upon actuation of the rotary lever 22 Also moves the pivot point on the actuator on a circular arc whose radius of its distance from the axis of rotation 26 is determined.

The other end of the formed as a steel wire switching means acts on the shift lever 20 by means of the slide-like sliding part 30 , which the for the actuation of the shift lever 20 executes intended linear movement.

As already explained above, pulleys 28 provided, which the steel wire backlash from the articulation point on the actuator to the sliding element 30 lead and so the power flow between rotary lever 22 and shifter 20 to ensure.

The radius of the circular arc described by the articulation point provided on the actuator is in this case on the required adjustment of the longitudinally displaceable sliding part 30 for actuating the shift lever 20 of the switch part 14 Voted.

3 shows the side view of a second variant of the switching device according to the invention 10 , as far as possible with the already in 1 and 2 treated. switchgear 10 matches. At the in 3 the variant shown, the switching operation of the switch part takes place 14 also by means of steel wire 25 However, instead of pulleys 28 for backlash-free transmission of the control forces with Bowden cables 29 is provided.

Instead of the provided in the first variant pulleys 28 is in the second variant, as already mentioned, for each switching direction (on - off) a Bowden cable 29 intended. A Bowden cable consists of a so-called Bowden cable soul, which as switching means 25 serves and here, as usual, also as a steel cable 25 is trained. The steel rope 25 is like the steel wire 25 in the first variant on the one hand with the actuator, that is with the thumbwheel 26 , and on the other hand with the carriage-like sliding part 30 connected to the switching operation of the switch part 12 arranged shift lever 20 serves.

The steel rope 25 is inside a flexible shell, the so-called Bowden cable 29 , arranged in each case in the vicinity of the actuator or of the sliding part 30 ends and at both ends in each case arranged fixed abutments 27 is fixed.

Near here means that the distance between the relevant end of the shell 29 and the respective connection point for the Bowden cable soul 25 that with the abutment 27 coincides, sufficient space is available for the required movement for switching operation, that is to the linear movement (double arrow P) of the carriage 30 ,

The flexible, preferably in tension and compression pressure-resistant envelope 29 is designed to withstand any change in length. In addition, it may be provided with a spiral sheath, so that in each case preferably in the tensile and compressive pressure-resistant sheath a positive guidance of the steel cable 25 is guaranteed.

In 4 the switching device shown in Fig. Is shown in plan view from above, here are further features of the invention can be seen.

The key advantage of the invention over previous solutions is the fact that the modules, which the individual switching device components, such as control panel 12 , Switch part 14 and mounting rail 16 as a common bottom part, form, are arranged in a compact manner easily accessible. Accordingly, it requires no special effort to replace a component as needed.

In particular, the design according to the invention makes it possible to carry out the replacement of components when the insert is pulled out from an access direction, namely from above.

In summary, the invention thus consists in a device which on the switching device according to the invention 10 is arranged and the rotational movement of the manual rotary lever 22 the front of the insert 10 converted into a linear movement offset by 90 degrees. This ensures that an operator by means of rotating the operating lever 22 on the module front the circuit breaker 14 can operate inside the module.

According to the invention, a linear pulling movement is thus generated during a rotational adjustment of the rotary lever, which makes it possible, via the switching means provided separately for the respective actuating direction 25 at the respective switch 14 arranged shift lever 20 to operate and thereby the switching device 14 to turn on or off.

Preferably, the rotational movement of the rotary lever 22 by means of a cable 25 transferred, which arranged in a ring and with a slide-like sliding part 30 connected is. By means of this sliding part 30 becomes the shift lever 20 at the relevant switch 14 actuated. In this case, it may alternatively be provided that the cable is designed continuously with deflection rollers for play-free operation or with two Bowden cables, which are coupled together to form an annular arrangement.

• – Eine erste Variante dieser Vorrichtung ist von einer Seilzug-Konstruktion gebildet, welche die Zugbewegung über Umlenkrollen auf den Leistungsschalter überträgt.
• – Eine zweite Variante dieser Vorrichtung besteht aus einer Bowdenzuganordnung, welche ebenfalls Zugbewegungen überträgt.

Thus, according to the invention, two versions of the device are provided.

• - A first variant of this device is formed by a cable construction, which transmits the pulling movement via pulleys on the circuit breaker.
• - A second variant of this device consists of a Bowden cable arrangement, which also transmits train movements.

LIST OF REFERENCE NUMBERS

10

el. switching device

12

control panel

14

switch part

16

Support rail, bottom part

18

front wall

19

handle

20

Gear lever, rocker arm

22

lever

24

rotary shaft

25

Switching means, steel cable, Bowden cable soul

26

actuator

27

Abutments, supports

28

guide rollers

29

Bowden cable

30

Sliding part, slide

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

• DE 2815758 [0003]
• DE 102005016545 [0004]

Claims (15)

Switching device ( 10 ) with a control panel ( 12 ) and with a separate switch part ( 14 ), preferably for low voltage up to 690 V, which are in operative connection with each other via a switching operation transmitting switching means, wherein for actuating the operating part, a rotary movement of a control part arranged on the rotary lever ( 22 ) is provided while the switching operation of the switch part ( 14 ) is provided linearly, characterized in that that on the control panel ( 12 ) arranged rotary lever ( 22 ) with a rotationally fixed to a common axis of rotation actuator ( 26 ), and with the interposition of a positively driven transmission element ( 25 ) with a slide-like sliding part ( 30 ), which one on the switch part ( 14 ) arranged shift lever ( 20 ). Switching device according to claim 1, characterized in that the actuating element upon actuation of the rotary lever ( 22 ) performs a pivoting movement as a result of the associated rotary movement and thereby the sliding part ( 30 ). Switching device according to claim 1 or 2, characterized in that as transmission element ( 25 ) a bidirectionally effective, force and motion transmitting switching means ( 25 ) is provided, which the switch part ( 14 ). Switching device according to claim 3, characterized in that as switching means ( 25 ) a ring-shaped cable is provided, which with the sliding part ( 30 ) is connected and to implement the rotational movement of the control unit arranged on the rotary lever ( 22 ) in a linear movement, the sliding part ( 30 ) for the purpose of actuating the switch part ( 14 ) arranged shift lever ( 20 ). Switching device according to claim 3, characterized in that as switching means ( 25 ) a steel wire arrangement with at least one deflection roller ( 28 ) is provided. Switching device according to claim 3 or 4, characterized in that the switching means ( 25 ) than with a sheath ( 29 ) provided cable is formed, which transmits the switching operation. Switching device according to claim 3 or 4, characterized in that as switching means ( 25 ) a Bowden cable arrangement ( 29 ) with a steel wire or steel cable forcibly guided in a flexible guide sleeve ( 25 ) is provided. Switching device according to claim 7, characterized in that the Bowden cable arrangement ( 29 ) associated guide sheath for the steel wire or steel rope ( 25 ) each close to the actuator ( 26 ) and the slide-like sliding part ( 30 ) is fixed in place, with sufficient space for the movement path of the actuator ( 26 ) as well as the sliding part ( 30 ) is provided. Switching device according to one of claims 7 to 8, characterized in that in addition a spiral-shaped sheath of the closely fitted guide sleeve ( 29 ) for the switching means ( 25 ) is provided, wherein the guide sleeve ( 29 ) at the same time as a connecting part between the control panel ( 12 ) and the switch part ( 14 ) serves. Switching device according to claim 7 to 9, characterized in that the guide sleeve ( 29 ) hose-like from dimensionally stable insulating material, preferably a plastic, such as tetrafluoroethylene, is formed. Switching device according to one of the preceding claims, characterized in that the switching device ( 10 ) with control panel ( 12 ) and switch part ( 14 ) a common basis ( 16 ). Switching device according to claim 11, characterized in that the common base as a support rail ( 16 ) is formed and serves as a bottom part of a device drawer. Switching device according to one of the preceding claims, characterized in that the operating part ( 12 ) and the switch part ( 14 ) are fixed at a defined distance from each other and are integrally connected to each other detachably. Switching device according to one of the preceding claims, characterized in that the switch part ( 14 ) is single or multi-pole, wherein for triggering a switching operation, a common shift lever ( 20 ) is provided. Switching device according to claim 14, characterized in that on the sliding part ( 30 ) a receptacle for the shift lever ( 20 ) is provided, in which the shift lever ( 20 ) intervenes.

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