DE3117495C2 - Entry arrangement - Google Patents

Abstract

The invention relates to a retraction arrangement for a switching device with a contact actuation effected by a lifting / lowering movement, which can preferably be used in switch cabinets. In this case, a self-contained, transportable device unit is provided with a stationary, mountable, counter-contacts having slide-in carrier and with a switchgear unit that can be pushed into the slide-in carrier and has import contacts, which after insertion can be adjusted and operated via a lifting / lowering device attached to the slide-in carrier is guided by guide means during insertion and actuation.

Description

a) The carrier is a fixedly mountable slide-in carrier (12) and carries mating contacts (20,21).

b) there is a lifting / lowering device on the rack (12) (37) attached,

c) the switchgear unit (13) can be pushed into the slide-in carrier (12),

d) the switchgear unit (13) is after insertion, with the help of the lifting / lowering device (37), adjustable in the sense of a contact actuation,

e) the switchgear unit (13) is being pushed in and guided by guide means (14, 19) when actuated.

2. Retraction arrangement according to claim 1, characterized in that the slide-in support (12) has a rear wall (35) with the inwardly facing, firmly attached counter-contacts (20, 21), a base plate (36) for fastening the lifting / lowering device ( 37) and laterally supporting walls (18) with embedded, angular FQhrungsnuten (19) for receiving guide cams \ i4) of the switchgear unit (13).

3. retraction arrangement according to claim 1 or 2, characterized characterized in that the switching device unit (13) contains a slide (27) on which the switching device (28) is mounted. that the poles of the switching device (28) with those on the back of the slide (27) attached retraction contacts (15,16) are firmly connected, and that the carriage (27) on its underside a support plate (41) for placing on the lifting 'lowering device (37) and lateral guide cams (14) for engagement in the guide grooves (19) of the slide-in support.

4. Retraction arrangement according to one of claims I to 3, characterized in that the lifting / lowering device (37) contains a support plate (40) for receiving the switching device unit (13) and that the Support plate (40) (support plate 41) on two opposite sides with receiving grooves (42) for receiving the support plate (41) (support plate 40) designed as a flat plate is provided.

5. retraction arrangement according to one of claims 1 to 4, characterized in that the lifting / lowering device (37) has four toggle levers (38), the ends of which are on the one hand on one on the slide-in support (12) attached mounting plate (39) and on the other hand on the support plate (40) are articulated that each two parallel working toggle levers (38) are connected to each other via a square pin (43) each and that the square bolts (43) in threaded holes of a threaded rod provided with a crank (44) (45) are interspersed.

6. retraction arrangement according to one of claims I to 5, characterized in that the free end the threaded rod (45) with additional retractable contacts (46) and the slide-in support (12) on its rear wall (35) is provided with corresponding, stationary additional mating contacts (47).

7. retraction arrangement according to one of claims 1 to 6, characterized in that the additional retraction contacts (46) as a plug part and the additional mating contacts (47) as a socket part of a control contact arrangement (48) are formed and the socket part (48) can be connected to a control voltage.

8. retraction arrangement according to one of claims 1 to 7, characterized in that the on the free End of the threaded rod (45) attached additional retraction contacts (46) via a flexible electrical Line (51) are firmly connected to a socket part (52) provided on the support plate (40) and that the support plate (41) is provided with a corresponding plug part (53) which has electrical Connection lines (54) fixed to the control devices (55) arranged on the slide (27) for the switching device (28) is connected

9. retraction arrangement according to one of claims 1 to 8, characterized in that the free ends the toggle lever (38) on the support plate (40) and the mounting plate (39) interact with one another via gears.

10. Retraction arrangement according to one of claims 1 to 8, characterized in that the mating contacts (20,21) are provided with angled, possibly transparent covers (56).

The invention relates to a retraction arrangement according to the preamble of claim 1. Such a retraction arrangement has become known, for example, from DE-AS 16 40 991. This citation shows a slide-in unit with a carrier and with a switchgear unit that can be displaced on this carrier. On the back of the switchgear unit, there are entry contacts that interact with busbars that are fixedly attached to the rear wall of a switchgear cabinet. Because of the horizontal displaceability, such an arrangement requires a relatively large cabinet depth.

From DE-OS 16 40 019 isl a retraction arrangement has become known in which a circuit breaker is arranged on a chassis and is designed to be moved into an interlocking compartment. The circuit breaker and / or its isolating contacts are arranged vertically movable on the chassis and can be brought into connection with fixed mating contacts arranged in the interlocking compartment ^{when the isolating con-Ia 1- Se and / or the switch are moved vertically.}

The invention is based on the object of providing a compact, inherently functional retraction arrangement create that is simple and reliable, easy to operate and can be used at any location and can be used especially in control cabinets with a small cabinet depth.

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

Such a device unit consists essentially of the stationary mountable rack and of the switchgear unit with the switchgear that can be pushed into the rack. The above Device unit is independently and can be used at any point, e.g. B. in a control cabinet or in a switchgear assembly,

be lured. The stationary assembly takes place via the slide-in carrier that has the appropriate mounting devices Switching device unit can be inserted with the switching device via corresponding guide elements. When pushing in there is still no contact between the retraction contacts on the switchgear unit and the fixed ones Mating contacts on the rack. This contact between the entry contacts and mating contacts takes place only after the switchgear unit has been pushed into the rack, namely with a lifting / lowering device attached to the rack, through which the switchgear unit with the Switching device can be raised or lowered. The slide-in carrier and the one inserted into this slide-in carrier Switching device units thus form a structural unit that can be used universally. Because the lifting / lowering technology is assigned to the rack, needs when changing the switching device unit with the switching device only this switchgear unit to be replaced, d. H. the lifting technology does not need to be replaced to become. Since the lifting technology is not assigned to the switchgear unit, this can be correspondingly easier and be designed more simply, which results in a corresponding saving in costs and weight.

The slide-in carrier preferably has a rear wall with the inwardly facing ones firmly attached Counter contacts, a base plate for fastening the lifting / lowering device and side support walls with Recessed, angular guide grooves to accommodate guide cams of the switchgear unit on. The slide-in rack thus contains all of the components that are permanently installed when the switchgear unit is changed do not need to be replaced. The switching device unit placed on the lifting / lowering device comes into engagement with the angular guide cams during insertion via lateral guide cams Guide grooves of the rack, so that the switching device unit both when pushing in as well as in the then the lifting / lowering movement is carried out reliably and safely by these guide grooves. According to a further embodiment of the invention, the switching device unit contains a slide on which the SchaUgerät is mounted, with the poles of the switchgear attached to the on the back of the slide Entry contacts are firmly connected. The slide has a support plate on its underside to be placed on on the lifting / lowering device and laterally said guide cams for engaging in said Guide grooves of the rack. To an insertion or to facilitate placing the switchgear unit on the lifting / lowering device, this has Hiib / Scnk device has a support plate for receiving the switchgear unit, the support plate (support plate) on two opposite sides with grooves can be provided for receiving the support plate designed as a flat plate.

Further advantageous refinements of the invention are given in the subclaims and the description of the drawings explained.

In the drawing are shown in FIGS. 1 to 3 Ausführungsbcispiclc of the subject matter according to the invention.

I 'i g. I and 2 / own one in perspective view Control cabinet in which a device unit is installed.

F i g. 3 shows a further embodiment in which the device unit is built into a switchgear .

Fi g. 1 and 2 show in perspective! Schsmatic view a switchgear cabinet 10, in which a control unit 11 is inserted. The device unit 11 has a Slide-in support 12, which is fastened within the switchgear cabinet 10 via fastening elements (not shown) is, and a switching device unit 13 which is inserted into the rack 12. According to FIGS. 1 and 2 has the switching device unit 13 has a housing on whose

ίο retractable cam 14 on both sides and on its rear side Entry contacts 15,16 are fixedly arranged. According to FIG. 1 and 2 thus form the switchgear unit $ 3 itself the switching device, while in a further embodiment according to FIG. 3 (see below) a special one Slide is provided for the switching device.

The slide-in carrier 12, which is fixedly arranged within the switch cabinet 10, has a not shown here Base plate on which a lifting / lowering device is firmly arranged, of which only one actuating rod here 17 can be seen. The slide-in support 12 also has lateral support walls 12 with embedded guide grooves 19 for the guide cams 14 and a rear wall with mating contacts 20, 21 attached thereto Control cabinet 10 has a door 22 on the front, which is provided with ": iner opening 23 through which one Plate 24 for receiving an operating handle for the switching device 13 protrudes. According to FIG. 1 is the switching device unit 13 with the guide cams 14 in the horizontal parts 19a of the Fühn-jigsnuten 19 bis pushed in to the stop. In this operating state, the retraction contacts 15, 16 are with the mating contacts 20, 21 not engaged. According to FIG. 2 became the switchgear unit through the lifting / lowering device actuated via the actuating rod 17, so that the retraction contacts 15, 16 are now connected to the mating contact 20, 21 are engaged. The switching device unit 13 is in the vertical via the guide cams 14 Share 19 £> of the guide grooves 19 guided The Right-angled guide grooves 19 are matched to the stationary mating contacts 20, 21 that after der.f insertion of the switchgear unit 13, the stop of the horizontal guide grooves 19a is reached and in this state the entry contacts £ -5.16 directly come to lie below the mating contacts 20,21.

Furthermore, the end of the vertical parts \ 9b of the guide grooves 19 forms a stop for the guide lugs 14, which is coordinated with the stationary mating contacts 20, 21 so that after the stop is reached, the retracting contacts are in engagement with the mating contacts. The switching device unit can thus be inserted up to the stop in the horizontal guide grooves 19a and then operated up to the stop by the stroke / index device. After reaching these stops, the switching device unit 13 is automatically brought into the desired position. At the same time, the position of the plate 24 inside the opening 23 of the door 22 indicates to the operator in which position the switching device is located. Since the door is closed in the entry, test and exhibition areas, the degree of protection is maintained in every position.

F i g. 3 shows an embodiment in which the independent device unit 11 is not within a Control cabinet, but z. B. is used in a switchgear 25. The device unit also consists of

b5 if again from a slide-in carrier 12, which has fastening elements 26 is fixed in place. In this exemplary embodiment, the same parts are also included the same reference numerals as in Fig. 1 and 2 verse

hen. The switching device unit 13 here contains a slide 27 on which the switching device 28 via fastening means 29 is attached. The angular retraction contacts 15, 16 coming from the switching device 28 are attached to the carriage 27 via support blocks 30, 31. The mating contacts 20, 21 are also isolated over Support blocks 33, 34 are attached to a rear wall 35 of the slide-in support 12. The slide-in carrier 12 has Furthermore, a base plate 36 for receiving the lifting / lowering device 37. The lifting / lowering device 37 has four toggle levers 38, the ends of which are attached to a mounting plate fastened on the base plate 36 39 and on the other hand are articulated on a support plate 40 for receiving the carriage. The sled 27 has a support plate 41 on its underside, with which the carriage 27 rests on the support plate 40 of the lifting / lowering device is attachable. To make it easier to place the slide on the lifting / lowering device, isi the support plate 40 on two opposite sides with grooves 42 for receiving the plane Plate formed support plate 41 is provided. The grooves can also be formed on the support plate 41.

] e two parallel working toggle levers 38 of the lifting / lowering device 37 are expediently via one each Square bolts 43 articulated together, the square bolts in threaded holes of a threaded rod 45 provided with a crank 44 are penetrated, which is designed as an actuating rod 17 is.

In expedient; According to the invention, the free end of the actuating rod 17 is provided with additional retractable contacts 46 and the slide-in carrier 12 on its rear wall 35 is provided with corresponding, stationary additional counter-contacts 47. The additional retractable contacts 46 are advantageously designed as a plug part and the additional mating contacts as a socket part of a St £ üerkorit2kt2norcinün ⁿ ^ iS. Auxiliary switches 49 can also be provided for the rear wall 35 of the slide-in support 12, which can be actuated by protruding cams 50 on the slide when the slide is actuated in the lifting or lowering direction.

As shown in FIG. 3 can be seen, the additional retractable contacts attached to the free end of the threaded rod 45 46 fixed to a socket part provided on the support plate 40 via a flexible line 51 52 connected. Furthermore, the support plate 41 is provided with a corresponding plug part 53, which has a electrical connection line 54 fixed to the control devices 55 for the switching device, which are arranged on the slide 28 is connected. This ensures that when the switchgear unit 13 is pushed in, the switchgear unit 13 on its Support plate 41 arranged plug part 53 automatically with the socket part 52 on the support plate 40 of the hub / Lowering device is associated. This is the electrical connection between the Control devices 55 arranged to control the switching device 28 and at the free end of the slide Threaded rod 45 attached additional retraction contacts 46 made. The activation of the associated Control voltage via the fixed additional mating contacts 47 only takes place when the lifting / lowering device 37 is actuated.

So that the support plate 40 always remains parallel to the floor surface when the threaded spindle is operated expediently the ends of the toggle levers are provided with gears, which when the lifting / lowering device is operated mesh.

According to FIG. 3 are also covers 56 for the stationary mating contacts 21 are provided. These covers are preferably made of one made of clear plastic. They serve as protection against accidental contact, whereby the transparency is particularly important therefore is advantageous. because this immediately recognizes the dangerous, voltage-carrying countercontacts are.

As already mentioned above, the contact between the control devices is on the switching device 28 and the additional retraction contacts 46 after the switching device unit has been pushed in until the stop is reached the guide grooves 19a made. When the actuating rod 17 is actuated, a first occurs Making contact between the additional retraction contacts 46 and the additional mating contacts 47. with which the associated Control voltage is switched on. This position corresponds to the known test position. In this condition all test circuits can be made without dab already the main contact 15,16 with the Counter contacts 20, 21 are in engagement. This test setup is therefore when the device unit is installed in a Control cabinet according to FIGS. 1 and 2 possible with the door closed. After performing the test circuits the threaded rod is actuated further up to the stop of the guide grooves 196. So that are the main contacts 15, 16 with the mating contacts 20, 21 in engagement. The square bolts 43 are also in this position against each other and the toggle levers 43 are stretched. in the On the other hand, idle state, d. H. after the switching device unit 28 has been retracted, the mounting plate 39 and the support plate 40 on top of one another. The support plate therefore passes through from the rest state to the fully extended state 40 all the way from the rest position to the extended position. At the same time, however, does the Actuating rod 17 only half way from the rest position to the middle position. This movement of the Actuating rod 17 is. As stated above, for Making contact of the additional retraction contacts 46 with the additional mating contacts 47 is utilized. The one from the Support plate from the rest position per revolution of the actuating rod covered distance is always smaller, the closer the support plate approaches its final state of the fully extended position. This comes the The fact that it is precisely in this end area that the greatest force is required, since this is where the contact is made between the main entry contacts 15, 16 and the mating contacts 20, 21 begins or is completed.

There is also a bolt provided through which ensures is that the switch is mechanically switched off during the lifting movement to switch it on avoid. Furthermore, markings can be provided on the slide-in carrier 12 and / or on the switching device unit 13 be that indicate to the operator when the door 22 of the cabinet is open in which position the Switching device unit 13 is currently located.

For this purpose 3 sheets of drawings

Claims (1)

Claims: 1. Retraction arrangement for a switching device, with a self-contained, transportable device unit is provided which has a carrier and a sliding contact on this Switchgear unit contains, characterized by the following features: