DE102016102554A1 - Control cabinet extension with a one-piece base support and control cabinet with such an extension - Google Patents

Abstract

An extract (1, 1a, 1b) for a control cabinet (2) is disclosed which comprises a base support (7) formed from sheet metal with a base surface (8) for mounting electrical / electronic devices (6). Two opposing and to the base surface (8) adjacent retaining tabs (9) for mounting a linear guide (3, 4) are bent up on one side of the base surface (8), while two between the retaining tabs (9) arranged, opposing and on the base surface (8) adjacent covers (10) are bent over to the other side of the base surface (8). Furthermore, a control cabinet (2) with such an extract (1, 1a, 1b) is specified.

Description

TECHNICAL AREA

The invention relates to an extract for a control cabinet, which comprises a base plate formed from a base plate with a base surface for mounting electrical / electronic devices. Moreover, the invention relates to a control cabinet with at least one extract of the type mentioned.

STATE OF THE ART

Excerpts and cabinets of the type described are basically known. For example, switching devices can be mounted on or in the drawer and pulled out of the cabinet or inserted into this. As a result, both the installation of the cabinet and maintenance work on the same are facilitated.

For example, the US 2001/0034149 A1 on this issue, an extractable from a cabinet body pull-out, are arranged on the contacts, with the aid of a mounted on the pull-out switch can be electrically connected to the power rails mounted in the cabinet.

In addition, the reveals DE 10 2005 040 998 A1 a control cabinet for accommodating electrical or mechanical control means, in which a vertical mounting plate of an extension for fixing said control means is provided. The drawer can be pulled out from the cabinet body so that the internally arranged, vertical mounting plate comes out of the interior of the cabinet body and thus becomes accessible.

A disadvantage of the known control cabinet extensions that their production is relatively complex, as a rule, several parts to a base support on which, for example, a switching device is mounted later, assembled. For example, the corresponding items are connected by welding, riveting, gluing and / or screws. In addition to the elaborate production, known cabinet drawer also sharp corners and edges on which people who build or maintain the cabinet can easily hurt.

DISCLOSURE OF THE INVENTION

An object of the invention is therefore to provide an improved extract for a control cabinet and an improved cabinet. In particular, the production of the extract is to be simplified and the risk of injury is reduced by this.

The object of the invention is achieved with an extract of the type mentioned, in which two opposing and adjacent to the base surface retaining tabs are bent up for mounting a linear guide on one side of the base surface and two arranged between the retaining tabs, opposite each other and to the Base surface adjacent covers are bent over to the other side of the base surface.

Furthermore, the object of the invention is achieved with a control cabinet comprising at least one extract of the type mentioned.

By the proposed measures, the production of the control cabinet drawer is particularly simple, since a comprehensive from the extract base support is made by forming a (single) sheet metal part. Even without the provision of additional reinforcements, the base support is extremely stable.

Recesses can be prepared in a conventional manner before bending the retaining tabs and the covers on still flat base support, for example by punching or Nibbeln. In addition to the simplified production, the special construction also reduces the risk of injury, since the bending does not result in sharp corners and edges. In particular, this relates to the cover respectively its round bending edge in the rear area of the drawer. People who have to work in the back of the cabinet can not easily injure themselves. For the same reasons, the risk of damaging a cable insulation at one edge of the drawer is reduced.

Due to the possibility to dispense with reinforcements in the area of the base area, also creates an easily accessible and easy-to-use space. As a result, the drawer and also the control cabinet can be made smaller with the same functionality and the functional range can be increased with the same size. The lack of reinforcements on the base area also reduces the risk of injury and damage to cables.

The fact that the covers are bent backwards, not only a high stability of the base support is achieved, but the space also kept vertically open, which in turn improves its usability and accessibility and reduces the risk of injury. The fact that the covers protrude backwards is finally self in case of (partially) pulled out extract good protection against contact.

Further advantageous embodiments and modifications of the invention will become apparent from the dependent claims and from the description in conjunction with the figures.

It is advantageous if the drawer or its base support has reinforcements which adjoin the retaining tabs, are bent relative to these and form spatial corners together with the retaining tabs and the base surface. This mechanically stabilizes the retaining tabs on which the linear guides for the drawer are mounted. This reduces the risk of jamming when moving the drawer.

For the same purpose, the drawer or its base support in an alternative embodiment, reinforcements have, adjacent to the base surface, are bent over the latter and form together with the retaining tabs and the base surface spatial corners.

It is also advantageous if the covers are formed lattice-shaped. In this way, ventilation inside the cabinet is facilitated and shielding against electromagnetic fields is improved.

It is also favorable if cable bushings are arranged in the retaining tabs. In this way, a cable can be moved from the extract in other areas of the cabinet in a relatively simple manner.

In addition, it is favorable if a recess for electrical conductors is arranged in the base surface. For example, can be provided on the back of the base surface contacts which are electrically contacted when inserting the statement in the cabinet with there permanently installed electrical conductors (in particular busbars). The fact that a wiring of said contacts can be guided to the front of the base surface, the electrical connection of a mounted on the front of the base surface device is simplified.

It is also favorable if the extract on the retaining tabs mounted linear guides, the distance to the retaining tabs by means of screws is adjustable. As a result, the lateral position of the drawer in the cabinet can be determined, for example, to facilitate a smooth engagement of contacts on busbars in the cabinet. In addition, tolerances in the width of the cabinet can be compensated.

Advantageously, by means of several extracts, which are connected to each other by means of connecting plates, an extract arrangement are formed. These extracts can only be moved together in succession. This is particularly advantageous when a wiring is provided between the extracts, which is not movable or should not be overly moved. In addition, the joint movement of several extracts maintenance work can be simplified and accelerated.

Finally, it is also particularly advantageous if the drawer has a sliding contact, which is provided for connection of the drawer to earth / ground. In this context, it is also advantageous if the cabinet has a aligned in the extension direction of the drawer and cooperating with the sliding contact metal strip, which is electrically connected to a frame of the cabinet. By these measures, the extract is in the installed state and also up to a certain extension position, which is determined by the length of the metal strip, grounded. Advantageously, the grounding of the drawer is not resolved until the electrical contact with live parts in the cabinet (for example, to busbars) is safely solved. Due to the special design, a standard component for the sliding contact can be used.

It should be noted at this point that the proposed sliding contact with the metal strip is not necessarily bound to the features of claim 1, but can also form the basis for an independent invention alone. It then creates an extract for a cabinet on which electrical / electronic devices can be mounted, comprising a sliding contact, which is provided for a connection of the extract to ground / earth. Furthermore, then creates a cabinet, comprising at least one extract of the type mentioned and aligned in an extension direction of the drawer and cooperating with the sliding metal strip, which is electrically connected to a frame of the cabinet. The aforementioned advantages apply mutatis mutandis. In addition, the embodiments disclosed to claim 1 mutatis mutandis can be applied without the features on the said extract and said cabinet. In particular, this relates to the grid-shaped covers, cable glands, recesses for electrical conductors, adjustable linear guides and connecting plates.

BRIEF DESCRIPTION OF THE FIGURES

The present invention will be described below with reference to the schematic figures of Drawing specified embodiments explained in more detail. It shows:

1 a partial illustrated control cabinet with an extract according to the invention in an oblique view from the top left;

2 the control cabinet off 1 in an oblique view from the bottom left;

3 an exemplary base support for an extract in the unbent state;

4 the finished bent base support with a sliding contact mounted thereon;

5 the interaction of the sliding contact with a grounded metal strip in an oblique view;

6 the interaction of the sliding contact with a grounded metal strip in detail view;

7 the interaction of the sliding contact with a grounded metal strip in an enlarged plan view;

8th Contacts on the back of the drawer for contacting in the control cabinet fixed electrical conductors;

9 the excerpt in front view;

10 a detailed view of the adjustment mechanism for lateral adjustment of the statement;

11 the linear guide of the drawer in an enlarged front view;

12 a control cabinet with a plurality of extracts extract arrangement in an oblique view and

13 the connection area of two pull-outs with connecting plate in detail view.

DETAILED DESCRIPTION OF THE INVENTION

The 1 and 2 show an excerpt 1 , which in a partially illustrated cabinet 2 is installed. The 1 shows the control cabinet from the top left, the 2 from the bottom left. In the right area of the 1 is the excerpt 1 also shown in the removed state. For better orientation is in the 1 and 2 and in the following figures in each case the x-, y- and z-direction of a coordinate system drawn.

The extract 1 has sliding shoes 3 on which in on a frame 5 of the control cabinet 2 fastened rails 4 are slidably mounted. The sliding shoes 3 and the rails 4 form a linear guide, with the help of the extract 1 can be moved in the x direction. Of course, instead of the sliding shoes 3 Rolls be provided, or the linear guide could also be constructed in other ways. Purely exemplary is on the abstract 1 a switching device 6 assembled. The extract is used in a manner known per se 1 the easier installation of the control cabinet 2 or also facilitates maintenance work on the same.

The 3 and 4 show the extract 1 in separate presentation. Specifically, the shows 3 a base plate shaped from sheet metal 7 in a flat state, the 4 the excerpt 2 in finished bent state.

The extract 2 thus comprises the base plate formed from sheet metal 7 with a base surface 8th for mounting electrical / electronic devices (for example for mounting a switching device 6 ), as well as two opposite and to the base surface 8th adjacent retaining tabs 9 pointing to one side of the base surface 8th are bent up (here in the x-direction), and two between the retaining tabs 9 arranged, opposite each other and to the base surface 8th adjacent covers 10 pointing to the other side of the base area 8th are bent over (here opposite to the x-direction).

In addition, advantageous reinforcements 11 provided, which to the retaining tabs 9 adjoin and opposite the retaining tabs 9 are bent over. Together with the retaining tabs 9 and the base area 8th form these spatial corners.

Alternatively, the reinforcements could 11 also to the base area 8th abut and be bent against this, again together with the retaining tabs 11 and the base area 8th spatial corners are formed.

Both embodiments contribute to the stability of the statement 1 at and avoid tilting the same in the linear guide 3 . 4 ,

Preferably, the covers 10 , as shown here, grid-shaped. For this purpose are in the covers 10 several recesses 12 arranged. The lattice-shaped shape on the one hand, the ventilation in the control cabinet 2 on the other hand also improves the electromagnetic shielding.

In the retaining tabs 9 are optional cable glands 13 arranged with their help Cable slightly from the extract 1 to other areas of the cabinet 2 can be performed.

In the retaining tabs 9 are also threaded holes 14 for the attachment of the sliding shoes 3 as well as threaded holes 15 for the attachment of connecting plates, with the help of several extracts 1 be coupled with each other, provided (see also 12 and 13 ).

Furthermore, in the base area 8th a recess 16 for contacting busbars of the control cabinet 2 arranged. This allows the switching device 6 comfortably electrically with in the control cabinet 2 fixed busbars are connected (see also the 8th and 9 ). In the base area 8th are also some holes 17 provided, for example, the assembly of the switching device 6 serve.

After all, it is advantageous if in the base carrier 7 as in the 3 and 4 shown, a holder 18 for a sliding contact 19 is integrated. The holder 18 is opposite the base surface 8th bent obliquely, so that mounted on the sliding contact 19 laterally from the extract 1 projects.

This sliding contact 19 acts with an extension x of the statement 1 aligned and electrically with the frame 5 of the control cabinet 2 connected metal strips 20 together, as in the 5 to 7 is shown. The 5 shows the control cabinet 1 partially in an oblique view, the 6 a detailed view of the sliding contact 19 and the metal strip 20 in oblique view and the 7 a detailed view of the sliding contact 19 and the metal strip 20 in plan view.

The proposed measures is the extract 1 when installed and also up to a certain extension position, which by the length of the metal strip 20 is determined. grounded. Advantageous is the grounding of the extract 1 only resolved when the electrical contact to live parts in the control cabinet 2 (For example, busbars) is safely solved. Due to the special design, a standard component for the sliding contact 19 be used.

The 8th shows the extract 1 now from the back. On the back of the base surface 8th are some optional mounts 21 for contacts 22 and conductors 23 intended. This conductor 23 are by (now a slightly different shaped) recess 16 in the base area 8th to the front of the drawer 1 where, for example, they are comfortable with the switching device 6 can be connected. When inserting the extract 1 in the control cabinet 2 become the contacts 22 with in the control cabinet 2 installed electrical conductors (in particular busbars) contacted, causing the switching device 6 is electrically connected.

9 shows a section of the cabinet 2 as well as the extract 1 in front view. Good is the leadership of the shoe 3 in the guide rail 4 to see. Advantageously, the distance between the linear guide 3 . 4 to the retaining tabs 9 adjustable. The 10 and 11 show an example, the 10 in oblique view, the 11 a detail view from the front.

Specifically, the distance b between a retaining tab 9 and a sliding shoe 3 with the help of adjusting screws 24 be set. This allows the y-position of the statement 1 in the control cabinet 2 be determined, for example, a smooth engagement of the contacts 22 on busbars in the control cabinet 2 to facilitate. In addition, tolerances in the width of the cabinet can 2 be compensated.

The 12 and 13 Finally, show an example, as several excerpts 1a and 1b can be coupled to a statement arrangement. The 12 shows the control cabinet 2 with an extracted extract arrangement in an oblique view. the 13 the coupling area between the extracts 1a and 1b in detail. Specifically, the connection of the two extracts 1a and 1b with the help of connecting plates 25 accomplished. These are the connecting plates 25 by means of screws 26 in the tapped holes 15 be screwed, at the two extracts 1a and 1b attached. The extracts 1a and 1b are thus connected to each other and can only in a row together more relative to the control cabinet 2 be moved. This is particularly advantageous when between the excerpts 1a . 1b a wiring is provided which is not movable or should not be overly moved. In addition, through the joint movement of the extracts 1a . 1b Maintenance work is simplified and accelerated.

The end result is a very simple and inexpensive to produce and yet stable cabinet drawer 1 , Even without the provision of additional reinforcements is the base carrier 7 extremely stable. The special design creates a well-usable and easily accessible space. As a result, on the one hand, the risk of injury to the cabinet 2 working people and reduced the risk of cable damage. On the other hand, the extracts 1 . 1a . 1b and also the control cabinet 2 be made smaller with the same functionality respectively the range of functions are increased at the same size. This is especially due to the backwards curved covers 10 favors, which also itself at (partially) extended extract 1 . 1a . 1b good contact protection effect.

In conclusion, it is noted that the extract 1 and the control cabinet 2 or whose components are not necessarily shown to scale and / or therefore this / these may also have other proportions / can. Furthermore, the extract 1 /Switch cabinet 2 Also include more or fewer components than shown. Location information (eg "top", "bottom", "left", "right", etc.) are based on the respective figure described and are mutatis mutandis to adapt to a new position to the new situation. Finally, it is noted that the above refinements and developments of the invention can be combined in any desired manner.

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

• US 2001/0034149 A1 [0003]
• DE 102005040998 A1 [0004]

Claims (11)

Abstract ( 1 . 1a . 1b ) for a control cabinet ( 2 ) comprising a sheet metal base carrier ( 7 ) with a base surface ( 8th ) for mounting electrical / electronic devices ( 6 ), characterized in that two opposing and to the base surface ( 8th ) adjacent retaining tabs ( 9 ) for mounting a linear guide ( 3 . 4 ) on one side of the base surface ( 8th ) are bent up and two between the retaining tabs ( 9 ), opposed to each other and to the base surface ( 8th ) adjacent covers ( 10 ) to the other side of the base surface ( 8th ) are bent over. Abstract ( 1 . 1a . 1b ) according to claim 1, characterized by the retaining tabs ( 9 ) adjacent reinforcements ( 11 ), which are bent over these and together with the retaining tabs ( 9 ) and the base area ( 8th ) form spatial corners. Abstract ( 1 . 1a . 1b ) according to claim 1, characterized by to the base surface ( 8th ) adjacent reinforcements ( 11 ), which are opposite the base surface ( 8th ) are bent and together with the retaining tabs ( 9 ) and the base area ( 8th ) form spatial corners. Abstract ( 1 . 1a . 1b ) according to one of claims 1 to 3, characterized in that the covers ( 10 ) are formed lattice-shaped. Abstract ( 1 . 1a . 1b ) according to one of claims 1 to 4, characterized in that in the retaining tabs ( 9 ) Cable glands ( 13 ) are arranged. Abstract ( 1 . 1a . 1b ) according to one of claims 1 to 5, characterized in that in the base area ( 8th ) a recess ( 16 ) for electrical conductors ( 23 ) are arranged. Abstract ( 1 . 1a . 1b ) according to one of claims 1 to 6, characterized by the retaining tabs ( 9 ) mounted linear guides ( 3 . 4 ), whose distance (b) to the retaining tabs ( 9 ) with the help of screws ( 24 ) is adjustable. Abstract ( 1 . 1a . 1b ) according to one of claims 1 to 7, characterized by a sliding contact ( 19 ), which is required for a connection of the statement ( 1 . 1a . 1b ) is provided to ground / earth. Abstract arrangement, characterized by several extracts ( 1a . 1b ) according to one of claims 1 to 8, which by means of connecting plates ( 25 ) are interconnected. Switch cabinet ( 2 ), characterized by at least one extract ( 1 . 1a . 1b ) according to one of claims 1 to 8 and / or a pullout arrangement according to claim 9. Switch cabinet ( 2 ) according to claim 10 and at least one extract ( 1 . 1a . 1b ) according to claim 8, characterized by a in a pull-out direction (x) of the statement ( 1 . 1a . 1b ) and with the sliding contact ( 19 ) cooperating metal strips ( 20 ) electrically connected to a frame ( 5 ) of the control cabinet ( 2 ) connected is.

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