WO1998007221A1

WO1998007221A1 - Switchboard cabinet with a front door

Info

Publication number: WO1998007221A1
Application number: PCT/DE1997/001673
Authority: WO
Inventors: Heike Meyer; Frank Wiese; Dietmar Becker
Original assignee: Siemens Aktiengesellschaft
Priority date: 1996-08-09
Filing date: 1997-07-31
Publication date: 1998-02-19

Abstract

A switchboard cabinet (20, 21, 22) has a framework (52) with closing elements and a front door (24, 25, 26). To reduce the space required when opening the door, the door has several articulated elements (7, 9, 26). The door elements may be arranged like a shutter, like a roller shutter, like a folding door or like a telescopic door.

Description

description

Control cabinet with a front door

The invention relates to a control cabinet with a scaffold and the scaffolding covering elements, such as wall panels, roof and floor panels and with a front door.

Control cabinets of this type are known in numerous different designs, e.g. by DE 39 20 354 AI or DE 42 27 634 AI. The front door primarily has the function of closing off the interior of the control cabinet from the outside. When designing the door and its locking parts, all aspects relating to security against unauthorized opening are therefore taken into account in a known manner. In addition, the design of the door and its lock is significantly influenced by the required protection of the devices installed in the control cabinet against influences of all kinds.

For this purpose, a number of special hinges have been developed, for example, which allow the door to be opened up to 180 ° and a high degree of protection to be maintained over the entire circumference (e.g. DE 40 22 079 AI and EP 0 448 907 AI).

When setting up a control cabinet in a room of limited dimensions, the opening of the door in the open state and the distance remaining from the opposite wall can be another criterion. Obviously, this point of view is particularly important when the design of the hinges allows an opening angle of only about 90 °. In this case, the dimension to be determined by the depth of the control cabinet, its possibly required rear distance from a wall and the projection of the opened door determine the minimum width of the room. But even if hinges with a larger opening angle, in particular up to 180 °, are used, this minimum room width is required if several control cabinets are set up next to one another. In this case, it must be assumed for security that not only one control cabinet is open and therefore neighboring doors may block each other in the partially open state. This would restrict the passage or escape route.

The invention is based on the object of specifying a design principle for the doors of switch cabinets which allows switch cabinets to be set up with a minimal distance from an opposite wall.

This object is achieved according to the invention in that the door to reduce the space requirement when opening is divided into at least two interconnected door elements and that guide elements for the door elements are arranged on the frame.

If the aforementioned minimal subdivision into two door elements is selected and the previous attachment is maintained by means of the known hinges, the projection in the is reduced opened state to half the previous size. If the door is further divided into several door elements, the overhang is reduced accordingly. This differs the

Invention of control cabinets or fields of switchgear with a division of the front surface into partial doors, e.g. according to DE 41 11 402 AI. These partial doors cover the entire width of the control cabinet unchanged and therefore require a corresponding swivel range.

Furthermore, the invention differs from already known control cabinets with double doors, for example according to the DE company publication Siemens “Cabinet System 8MF ^W , Catalog NV21, 1991, pages 1/16, 1/17, 1/26. These cabinets are twice the width of normal control cabinets and are selected accordingly if extensive equipment is to be housed together. The two doors have the usual dimensions and therefore also require the usual swivel range when opening.

In the context of the invention, the door elements can be connected in the manner of a folding door by a hinge arrangement with a vertical hinge axis, projecting guide pins being arranged in the extension of the hinge axes so as to engage in guide rails attached to the frame. Such a door can be designed in such a way that when it is opened, for example, it only requires about 1/5 of the projection of previously used doors.

Another advantageous way of realizing the inventive concept is that the door elements according to Kind of a telescopic door along the scaffolding of the cabinet arranged guide rails are guided parallel to each other and that the connection of the door elements is formed by lost motion driver. This connection of the door elements known in telescopic doors has the effect that when the last door element is moved, the adjoining door element is inevitably taken along when the path corresponding to one of the door elements has been completed. By using such a telescopic door in a control cabinet, it is achieved that no additional space to the opposite wall has to be taken into account when opening and that the doors of adjacent control cabinets cannot touch each other.

As a third possibility for completely avoiding a free space for opening the control cabinet, the door elements in the context of the invention can be designed in the manner of a blind or a roller shutter from articulated slats and articulated to one another, guide rails being arranged on the frame of the control cabinet, along which the Door elements are displaceable.

In contrast to furniture roller doors, in which slats made of wood and held together by a textile fabric are used, it is advisable to use the design known for roller shutters for switch cabinets. The slats are made of hollow plastic or metal profiles, which are directly and articulately engaged. In this way, the front end of a Control cabinet can be designed to be insulating or conductive and grounded.

In the interest of a rational manufacture of control cabinets, the designer will endeavor to use the same components as much as possible for the construction of different control cabinets. The invention complies with this endeavor in that basically the same scaffold can be used for control cabinets with the previously used pivoting doors as well as for control cabinets with doors according to the invention. In particular, slat-like door elements can be used in the form of a roller shutter element which has a roller shutter shaft, guide rails and a protective box, the guide rails being attached to the front and / or the rear of the control cabinet. In a known manner, the guide rails serve at the same time as supports for bearing blocks for the roller shutter shaft and the protective box. If a version with an electric drive housed in the roller shutter shaft is selected, a high degree of operating comfort is achieved.

Likewise, on the basis of a standard control cabinet, guide elements for the door elements can be attached to a front frame that can be attached to the frame of the control cabinet. Such a front frame can be pivotally attached to the frame of the control cabinet by means of pivot pins, for example in order to facilitate workshop assembly or maintenance. In a known type of control cabinet, the door does not cover the entire front surface of the control cabinet. This design can advantageously be used within the scope of the invention in such a way that part of the front surface can be closed by an additional closing element which can be attached or moved independently of the door, and that the door is dimensioned for a correspondingly reduced part of the front surface of the control cabinet .

Such an additional closure element can be designed as an upper and / or side front panel. This means that surfaces are available which, in individual cases, are better suited for attaching display and / or control elements than the doors, although these can in principle also be carriers of display and / or control elements. Accordingly, the additional closure element can be designed as a carrier for display and / or control elements.

An additional closure element of the type mentioned can be arranged in an articulated manner by means of a hinge, which simplifies the installation and maintenance of the display and / or control elements mentioned.

As already mentioned, doors according to the invention can also be equipped with display and / or control elements. For this purpose, the door elements, e.g. B. the slats in the blind or roller shutter-like design, have a display and control elements adapted overall depth, along the door elements a contactable at any point and the relative movements of the door elements following line system is arranged and wherein the display and / or

Controls a uniform contact device for

Have connection to the pipe system.

The line system can preferably have the configuration of a bus system which is able to transmit both auxiliary energy for operating interface modules and control signals. In connection with this, the display or control elements can be components of the assemblies adapted to the door elements, each one with the

Carrier element to be connected and include an interface module and a contact device.

The invention is explained in more detail below with the aid of several exemplary embodiments.

FIG. 1 shows a front view of three switch cabinets set up next to one another according to the invention, but which are equipped differently in order to illustrate the different designs of the doors explained.

FIG. 2 shows three further embodiments of doors in a representation corresponding to FIG. 1.

FIG. 3 shows schematically a control cabinet from the side, each with a roller element as a front and rear door.

In a representation corresponding to FIG. 3, FIG. 4 shows a modified arrangement of roller shutter boxes. FIGS. 5 and 6 show a control cabinet with a telescopic door in connection with a side front panel and a front frame in a front view or in a sectional top view.

FIG. 7 shows a room in plan view with three control cabinets of different designs set up next to one another to illustrate the reduced space requirement.

Figures 8, 9 and 10 illustrate the design and attachment of display and control elements that are suitable for attachment to slat-like door elements. 8 shows a single slat in view, FIG. 9 shows three slats joined together in connection with a line system from the inside, and FIG. 10 shows four slats joined in section.

The side by side shown in Figure 1

Control cabinets 1, 2 and 3 have the same width and height, but have different doors 4, 5 and 6, respectively. This combination serves to illustrate the different designs of doors already mentioned and is not intended to illustrate a preferred overall arrangement. However, it should be pointed out that in individual cases it can make sense to combine at least two control cabinets with different doors. This will be discussed in more detail. The cabinets 1, 2 and 3 have a scaffold of a suitable design, for. B. according to EP 0 404 284 Bl. That it for understanding the invention on details of

Scaffolding and its cladding with end elements does not arrive, this will not be discussed in more detail.

The door 4 of the control cabinet 1 in FIG. 1 is designed as a louver made of lamellar door elements 7. A lock 10 is arranged in the bottom door element 7. The door 4 can therefore be opened by moving it in the direction of the arrow 11, with guide elements 8 of corresponding length receiving the door 4 over their entire length in a known manner. Since the guide elements 8 indicated by dashed lines extend over the upper and partially the rear area of the control cabinet 1, the lower area of the control cabinet 1 remains free from the guide learners 8 and is available in a known manner for the introduction of cables and lines.

The door 5 of the control cabinet 2 arranged centrally in FIG. 1 likewise consists of lamella-like door elements 7, but is formed in two parts and has an approximately centrally arranged lock combination 12. The two-part design of the door 5 requires guide elements 13, each of which extends in depth over the upper and lower part of the control cabinet 2, but only to a small extent over the rear wall of the control cabinet 2. The remaining free middle part of the rear wall of the control cabinet 2 is therefore available for the introduction of lines. In contrast to the door 4 of the control cabinet 1, the door 5 of the control cabinet 2 does not extend over the entire height of its front surface. The upper part of the front surface is covered by a closing element

14 is formed, which is equipped with display and / or control elements 15 and can also be a carrier of a type or rating plate. The closure element 14 can be fixedly mounted or can be pivotable by means of suitable concealed hinges.

The front surface of the control cabinet 3 shown on the right in FIG. 1 represents a combination of the configurations of the control cabinets 1 and 2. This is because, on the one hand, similar to the control cabinet 1 shown on the left, a one-piece door 6 made of lamella-like door elements 7 is provided, but does not overlap the entire width of the control cabinet 3 extends. The remaining part of the front surface is provided with an additional end element 16 in the form of a narrow front panel, which, like the end element 14, serves as a support for display and operating elements 15. In the case of door 6, a lock 10 is arranged on top. The door 6 can therefore be opened in the direction of an arrow 17. Guide elements 18 of the door 6 therefore extend over the lower and in part the rear part of the control cabinet 3, the upper part of the rear wall remaining free. The closing element 16 can be opened by means of an indicated hinge 19 in the manner of a door. In a similar way, the closing element 14 of the control cabinet 2 could be pivotable about a horizontal hinge.

Further embodiments of doors are now based on the

FIG. 2 explains the three switch cabinets 20, 21 and 22 with doors 23, 24 and 25 which are set up next to one another shows in an arbitrary combination. The door 23 of the left control cabinet 20 is designed as a folding door made of four door elements 26. The two left and the two right door elements 26 are connected to each other, so that after actuation of a middle lock combination 12, the two door leaves can be opened in the direction of arrows 27 and 28 along the indicated guide elements 29.

The door 24 of the control cabinet 21 shown in the middle in FIG. 20 is similar to the door 5 of the control cabinet 2 in FIG. 1 with regard to the dimensions and the arrangement of the lock combination 12. In contrast to the control cabinet 2, however, display and / or operating elements 15 are housed in the door elements 7, while the additional closure element is designed as an upper narrow front panel 30 and is kept free of display and control elements.

The door 25 of the control cabinet 22 shown on the right in FIG. 2 consists, similarly to the previously explained doors 4, 5, 6 and 24, of slat-like door elements 9 which are connected to one another in an articulated manner, but which, in contrast to the doors mentioned, are connected with a vertical hinge axis and horizontally along arranged guide elements 31 are displaceable. After release of a lock 32, the door 25 can be moved in the direction of an arrow 33.

The door 25 of the control cabinet 22 in FIG. 2 does not extend over the entire front surface of the control cabinet 22, since there is an additional narrow one on the left side End element 34 in the form of a display and / or

Control elements 15 provided front panel is arranged.

The control cabinet 35 in FIG. 3 has a door 36 made of lamella-like door elements on its front side and on its rear side. In contrast to the control cabinet 1 in FIG. 1, a standard roller shutter element 37 with a roller shutter shaft 38 is used, which can contain an electric drive in a known manner. Furthermore, the roller shutter element 37 includes guide rails 40 which are attached to the front and rear of the frame of the control cabinet 35 and which also serve as supports for bearing blocks for the roller shutter shaft 38. A protective box 41 encloses the roller shutter shaft 38 and takes the wound door elements, i.e. the roller shutter curtain. The end faces of the protective boxes 41 can be designed as a front panel of the control cabinet 35 and can be included in the design of the front or back. In particular, controls for the actuation of the door 36 and for built-in devices of the control cabinet 35 can be arranged in the protective box 41 as in the closing element 14 of the control cabinet 2 in FIG. 1.

FIG. 4 shows an exemplary embodiment of a control cabinet 42 that is similar to FIG. 3. A door 36 is also provided on the front. On the other hand, a door 43 is attached to the back, which consists of a roller shutter element 44, as is used, for example, for retrofitting windows that have not been provided with a roller shutter box on site. The protective box 41 can be arranged flush with the top wall of the control cabinet 42 or can protrude upwards, as is indicated by dash-dotted lines.

Another switch cabinet 45 shown in FIGS. 5 and 6 is provided with a telescopic door 46, which comprises three movable door elements 47 and a final, fixed door element 48, which at the same time forms a front panel. The door elements 47 are guided in rail-like guide elements 9 at the top and bottom. After opening a lock 10 arranged on the left, the door elements 47 can be shifted to the right in the direction of an arrow 50 so that the door elements 47 are aligned with the fixed door element 48.

The mentioned guide elements 49 can be attached directly to the frame 52 shown schematically in cross section in FIG. In the example shown, however, the guide elements 49 are located on a front frame 53 which is connected to the frame 52 and can be pivoted in the direction of an arrow 57, the hinge or hinge axis 54 of which is located on the right side of the control cabinet 45. The front frame 53 has a left end rail 55 and a right end rail 56. Display and / or control elements 15 are accommodated in the door element 50. Since the front frame 53 comprises all the components of the door 46 and the door element 48 provided with the display and / or operating elements 15, the control cabinet 45 can be used as required with the previously used pivoting doors or with the telescopic door described 46 are provided. The scaffold 52 can be used unchanged in both cases.

The reduced space required for the installation of control cabinets made possible by the described doors can be seen in more detail in FIG. 7. FIG. 7 shows a top view of three cupboard cabinets 60, 61 and 62 set up side by side, which are located in a partially shown room with opposite walls 63 and 64. As can be seen, the control cabinets 60, 61 and 62 are set up at a distance A from the wall 63, which is generally required for the purposes of ventilation and wiring. Assuming that the control cabinet 60 roughly corresponds to the design of the control cabinet 22 and the control cabinet 61 roughly corresponds to the control cabinet 2 in FIG. 1 and the control cabinet 21 in FIG. 2, no additional space requirement occurs when the doors 5 and 24 are opened open and a dimension B prescribed or suitable for the passage is only to be observed from the front edge of the cabinet.

The control cabinet 62 also shown in FIG. 7, on the other hand, has a door 62 which corresponds approximately to the door 26 in FIG. 2 and is designed in the manner of a folding door. This consists of two pairs of door elements 26 which are hingedly connected to one another by a hinge arrangement 65. In the open state, the door elements protrude from the frame 52 by approximately 1/4 the width of a conventional swing door. In order to achieve the same dimension B for the passage, the wall 64 would therefore have to assume the position shown in broken lines in FIG. Therefore, the entire space requirement for control cabinets is in the Design of the control cabinet 62 described the other

Designs of doors slightly enlarged.

As already mentioned, the combination of different designs of control cabinets shown in FIGS. 1, 2 and 7 is arbitrary. If several switchgear cabinets are to be combined, it is preferred to select only the same or similar designs in order to facilitate handling. If a complete remote control is provided, switch cabinets of the type of the switch cabinet 1 in FIG. 1 or 20 in FIG. 2 can preferably be selected. If only a few control and / or display elements are required, the design of the control cabinet 2 in FIG. 1 is suitable for this purpose. A larger number of display and control elements is to be accommodated in front-end elements 16 and 34, as is the case with the switch - Have cabinets 3 in Figure 1 and 22 in Figure 2. For this reason, for example, a combination of switch cabinets with similar doors, but with or without an additional front end element, can also be considered.

As already mentioned, doors with hinged slat-like door elements can also be provided with display and / or control elements, as is shown, for example, with door 24 in FIG. 2. A suitable exemplary embodiment is explained with reference to FIGS. 8, 9 and 10. FIG. 8 first shows a single door element 7. The door element 7 has a U-shaped cross-section, as can be seen in more detail in FIG. The legs 70 of the door elements 7 correspond to the overall depth of assemblies 71 dimensioned, each containing a display or control element 15. FIG. 9 also shows that the assemblies 71 have a carrier 72, on which, in addition to a display or operating element 15, an interface module 73 and a contact device 74 are arranged. A line system 75 extends over a number of door elements 7, for the passage of which the legs 70 of the door elements 7 are provided with recesses 76. The line system 75 forms in each door element 7 an arcuate region 77, which is for the engagement with the contact device 74

Assembly 71 is provided. In the example shown, the line system 75 has four conductors 80, two of which are used to provide auxiliary energy for operating the interface module 73 and a display element, while the two remaining conductors are provided for control and signaling signals. Depending on the type of bus system provided, the line system 75 can have a different number of conductors, the contact device 74 having to be dimensioned accordingly.

In order to achieve an arrangement of display and / or control elements 15, as is shown as an example in the control cabinet 21 in FIG. 2, two line systems 75 can be laid along the door elements 7 in accordance with FIG.

In principle, the same arrangement as shown in FIGS. 8, 9 and 10 can also be used for door 23 in FIG. 2 or door 46 in FIGS. 5 and 6.

Claims

claims

1. Control cabinet (1, 2, 3, 20, 21, 22, 35, 42, 45, 60, 61, 62) with a scaffold (42) and the scaffold (42) covering end elements, such as wall panels, roof and floor panels as well as with a door (4, 5, 6, 23, 24, 25, 36, 43, 46), since you are marked that the door (4, 5, 6, 23, 24, 25, 36, 43, 46) To reduce the space requirement when opening, it is divided into at least two interconnected door elements (7, 9, 26, 47) and that guide elements (8, 13, 18, 29, 30, 51) for the door (4 , 5, 6, 23, 24, 25, 36, 43, 46) are arranged.

2. Control cabinet according to claim 1, since you rchgek characterized that the door elements (26) are connected in the manner of a folding door by a hinge arrangement (65) with a vertical hinge axis and that in the extension of the hinge axes projecting guide pins in the rail-like guide elements attached to the frame (29) are arranged to intervene.

3. Switchgear cabinet according to claim 1, characterized in that the door elements (47) in the manner of a telescopic door along the frame (52) arranged rail-like guide elements (51) are guided parallel to each other and that the connection of the door elements (47) is formed by lost motion drivers is.

4. Switchgear cabinet according to claim l, characterized in that the door elements (7, 9) are designed in the manner of the slats of a blind or a roller shutter and are connected to one another in an articulated manner and that on the frame (52) of the switchgear cabinet (1, 2, 3, 21, 22) rail-like guide elements

(8, 13, 18, 30) is arranged, along which the door elements

(7, 9) are displaceable.

5. Control cabinet according to claim 4, characterized in that the door is designed as a roller shutter element (37, 44) having a roller shutter shaft (38), guide rails (40) and a protective box (41), the guide rails (40) on the front side and / or the rear of the control cabinet (35, 42) are attached.

6. Switchgear cabinet according to one of claims 1 to 5, that the guide elements (51) for the door elements (47) are attached to a front frame (53) that can be attached to the frame (52).

7. Control cabinet according to claim 6, d a d u r c h g e k e n n z e i c h n e t that the front frame (52) by means of pivot pin (54) articulated on

Scaffold (52) of the control cabinet (45) is attached.

8. Control cabinet according to one of claims 1 to 6, characterized in that part of the front surface of the control cabinet (2, 3, 21, 22,

45) can be closed by an additional closing element (14, 16, 30, 34, 48) that can be attached or moved independently of the door (5, 6, 24, 25, 46) and that the door (5, 6, 24,

25, 46) for a correspondingly reduced part of the

Front surface of the control cabinet (2, 3, 21, 22, 45) is dimensioned.

9. Switchgear cabinet according to claim 8, that the additional closure element (14, 16, 30, 34, 48) is designed as an upper and / or laterally arranged front panel.

10. Control cabinet according to claim 9, d a d u r c h g e k e n n z e i c h n e t that the additional closure element (14, 16, 34) is designed as a carrier of display and / or control elements (15).

11. Switchgear cabinet according to claim 9 or 10, that the additional closure element (16, 58) is arranged in an articulated manner by means of a hinge (19, 64).

12. Switchgear cabinet according to one of the preceding claims, characterized in that the door elements (7, 9, 26, 47) have a depth adapted to display and / or control elements (15) that along the door elements (7, 9, 26, 47 ) at any point contactable and the relative movements of the door elements (7,

9, 26, 47) the following line system (75) is arranged and that the display and / or control elements (15) is assigned a uniform contact device (74) for connection to the line system (75).

13. Control cabinet according to claim 11, characterized in that the display or control elements (15) are part of the door elements (7, 9, 26, 47) adapted modules (71), each with the door element (7, 9, 26th , 47) carrier (72) to be connected, an interface module (73) and the contact device (74).