Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
  • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
  • H02B1/26—Casings; Parts thereof or accessories therefor
  • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
  • H02B1/301—Cabinet-type casings; Parts thereof or accessories therefor mainly consisting of a frame onto which plates are mounted
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K7/00—Constructional details common to different types of electric apparatus
  • H05K7/18—Construction of rack or frame
  • H05K7/183—Construction of rack or frame support rails therefor
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
  • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
  • H02B1/01—Frameworks
  • H02B1/013—Profiles for cabinet frames
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
  • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
  • H02B1/01—Frameworks
  • H02B1/014—Corner connections for frameworks
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
  • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
  • H02B1/26—Casings; Parts thereof or accessories therefor
  • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof

Definitions

• the invention relates to a frame for a control cabinet or the like consisting of twelve profile rails connected to one another by corner pieces, each of which has a hollow profile with two side surfaces that run normally to one another, in each of which parallel to the common profile edge lying between these side surfaces facing the interior of the control cabinet or the like, a series of openings is provided, with a profile leg extending in each case on the side surface which normally extends to a front or rear wall of the control cabinet or the like, and a profile leg on the side surface which extends normally to a side wall of the control cabinet or the like each side surface 'reads a perpendicular angle bevelled portion Toggle sch.
• a frame is already known (DE 16 65 772 B2), the electrical devices under safest! shock protection should also be included in extreme cases and should be easy to stack.
• This frame has corner pieces designed as cast elements. Each corner piece has three short shoulders, onto which triangular trusses or profile rails can be attached in the profile, the profile rails advantageously also being welded to the corner piece.
• This known frame is particularly unsuitable for the connection of side, floor and ceiling walls as well as doors and adjacent frames due to the design of its profile rails. Only a form-fitting interlocking of adjacent frames is provided.
• a wall element is also known for insertion into the side openings of a housing frame constructed from professional rails (DE 37 07 916 A1), the profile rails have a hollow profile which has outwardly projecting, right-angled contact flanges and between them an inclined surface facing the interior of the frame.
• the course of this inclined surface obviously serves only to save space, and is therefore of no importance for the frame structure and the connection of side, floor and ceiling walls, as well as for doors, drawers and adjacent frames.
• the wall elements come into contact with the stop surfaces of the profile rails, which are connected at the corners by engaging three-legged corner pieces.
• a set of components for frame frames which has a floor and a ceiling frame and floor and ceiling frames in the region of their corners connecting posts or profile rails.
• the posts contain a closed box profile, which is designed as an isosceles angle profile and works together with lugs on the floor and ceiling frame.
• the posts have connecting webs to which inserts and the like can be screwed.
• a generic frame is already known (DE 33 44 598 C1), in which the hollow profile is designed as a square profile and preferably with a square cross section.
• the professional rails are directly welded at their abutting edges.
• the connection of side, floor and ceiling walls as well as of doors follows by screwing, in which the screws come to rest with their heads in the hollow profile, so that the actuating tools have to be inserted through openings in the hollow profile and inserted into the screws.
• the object of the present invention is to create a frame whose profile rails result in an increased usable section modulus with the same material expenditure, the production expenditure for the Reduce the frame and thereby facilitate the assembly of a control cabinet or the like.
• the hollow profile has the cross section of a right-angled isosceles triangle and that V-shaped connecting elements are provided which can be fixed with one leg on the hypotenuse surface of the hollow profile and with their other leg parallel to a side surface of the hollow profile run, and that three rails are connected to each other via a corner piece.
• the triangular shape of the hollow profile results in a better usable section modulus with the same material expenditure, in that the length of the side surfaces over which they are supported by the hypotenuse surface can be dimensioned to be considerably larger than in a square version.
• the same profile width and depth there is thus an increase in the section modulus and thus also the stability in the frame according to the invention compared to the prior art.
• the same requirements with regard to the section modulus and the stability can be met according to the invention with a smaller profile width and depth and thus also with less material.
• the importance of this advantage arises, among other things, from the fact that when building control cabinets, the material costs make up about 60% of the total manufacturing costs.
• a reduction the profile width and depth leads to a corresponding increase in the usable space of a control cabinet.
• connection elements can therefore be placed, as are required for locks, hinges, etc.
• the V-shaped connecting elements can be fixed in the desired length and number on the hypotenuse surface, in particular to connect wall elements, doors and / or lock parts etc.
• the connecting elements can optionally be attached to the hypotenuse surface in two positions rotated by 180 ' about a horizontal axis.
• the relatively large stabilized length of the side surfaces enables a correspondingly large dimensioning of the connection surfaces in the corner region, for which corner pieces are provided according to the invention.
• the design of the profile rails provided in the floor area can differ from that of the other profile rails.
• the device according to the invention can also be designed such that the profile leg is inclined by 5 * to 40 ° relative to the adjoining side surface in the direction of the interior of the profile rail. This tendency proves to be expedient in particular when rain or condensed water in the control cabinet or the like must be expected.
• the device according to the invention can also be designed such that the connecting element is part of a hinge.
• the device according to the invention can also be designed such that part of a door lock can be fixed on the hypotenuse surface. This part, in turn, can also be designed as a connecting element, that is to say optionally perform one of several functions.
• the device according to the invention can also be designed such that three profile rails are welded to a corner piece.
• the device according to the invention can also be designed such that the profile rails have a narrow notch, in particular in the region of the legs of the hollow profile, and are welded in this region both to the respectively adjacent profile rail and to the corner piece.
• the narrow notch enables the welder to directly identify the three parts to be connected here and to weld them directly to one another. This ensures a secure connection between these parts, i.e. between two rails and one corner piece.
• the device according to the invention can also be designed such that the corner pieces are provided with bores for receiving suspension eyes. In this way there is a very stable and easy connection for hanging transport.
• the device according to the invention can also be designed such that the professional 1-rails are each profiled from a sheet metal sheet, the edges of the sheet metal sheet lying in the region of an outer part of the angular section. This results in a material accumulation and reinforcement of the profile rails in the overlapping area of the edges, which in particular significantly improves the stability when control cabinets are lined up in a row.
• FIG. 1 shows a section through a profile rail of the frame according to the invention
• 2 is a side view of the rail according to FIG. 1 in the direction of arrow 2
• FIG. 5 shows a connection of a profile rail of the frame according to the invention to a side wall
• FIG. 6 shows a perspective view of an upper corner connection of the frame according to the invention with a suspension eye
• FIG. 7 shows a perspective view of an upper corner connection of the frame according to the invention viewed from the inside of the frame and
• FIG. 8 shows a perspective view of a lower corner connection of the frame according to the invention viewed from the inside of the frame.
• the profile rail 1 shown in FIGS. 1 and 2 has two side surfaces 2, 3 that run normally to one another and abut along a profile edge 4. In the side surfaces 2, 3 there is a row of openings running parallel to the profile edge 4, which are indicated by lines 5.
• a profile section 6 adjoins the side surface 2 and is angled by three degrees relative to the side surface 2 toward the interior of the profile rail 1.
• the side surface 3 is followed by an angular section 7, which has an inner part 8 aligned with the side surface 3 and one adjoining outer part 9 running parallel to the side surface 2.
• a hypotenuse surface 10 is provided which forms a triangular hollow profile 11 with the side surfaces 2, 3, beyond which the profile section 6 and the angular section 7 protrude after the side surfaces 2, 3.
• the hollow profile 11 is designed in the form of an isosceles right-angled triangle.
• FIG. 3 shows an embodiment of the frame according to the invention, the profile rail 1 shown at the bottom right having a connecting element in the form of a V-shaped hinge part 12, the inner leg 13 of which is screwed to the hypotenuse surface 10.
• the hinge part 1 12 is supported on the profile section 6 and its outer leg 14 produces a hinge connection between the door 17 and the frame via a pivot pin 15 which engages with an outer hinge part 16 fixed to the door 17.
• the profile rail 1 shown at the bottom left in FIG. 3 carries on the hypotenuse surface 10 an inner lock part 19 which cooperates with an outer lock part 20 fixed to the door 17.
• a side wall 21 is screwed to the outer part 9 of the profile rail 1 shown at the bottom right in the figure.
• This side wall 21 is screwed according to FIG. 3 in the same way (not shown) with an outer part 9 of the profile rail 1 shown at the top right.
• This profile rail 1 carries a V-shaped connecting element 22 with an inner leg 23 and an outer leg 24.
• the inner leg 23 is screwed onto the hypotenuse surface 10, while the outer leg 24 is screwed to a rear wall 25.
• the apex of the V-shaped connector tion element 22 abuts the profile section 6 of the profile rail 1.
• the rear wall 25 is fixed on its left-hand edge in FIG. 3 by a profile rail 1 of the same design but arranged in mirror image to it.
• a sealing strip 26 sits on the profile section 6 of this profile rail 1.
• Fig. 3 two identically formed, symmetrically arranged profile rails 1 are connected to each other at the top left, a screw connection between these rails via the abutting outer parts 9 of the angle sections 7.
• a mounting plate 27 is fixed to the profile rails 1 via a holder 28.
• a cover profile 29 covers this connection.
• FIG. 4 shows a cover plate 31 provided with a sealing strip 30, the sealing strip 30 engaging the profile section 6.
• a side wall 32 is provided with a sealing strip 33 and screwed to an outer part 9.
• a corresponding screw connection is also shown in FIG. 5.
• each corner a corner piece 34 is provided, which has three connecting surfaces 35, 36, 37 which are at right angles to each other and against which the end of a profile rail 1 abuts.
• the profile edges 4 of the profile rails 1 are always directed towards the inside of the frame.
• the profile rails 1 have notches 38 at their ends in the region of the side faces. These notches 38 cause both the edges of the profile rails 1 to be connected and an edge of the corner piece 34 to be visible when the corner region of the frame is put together becomes. Welding in the area of the notch 38 can therefore take place under close observation of the three parts to be connected. This welding is preferably carried out solely over the length of the side faces 2, 3 of the hollow profile 11.
• the corner pieces 34 are provided with bores 39 into which suspension eyes 40 can be screwed.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Joining Of Corner Units Of Frames Or Wings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6394396

Family Applications (1)

Country Status (2)

Cited By (2)

Families Citing this family (6)

Citations (5)

Family Cites Families (3)

• 1989
  • 1989-11-29 DE DE19893939421 patent/DE3939421C1/de not_active Expired - Fee Related
• 1990
  • 1990-11-24 WO PCT/DE1990/000902 patent/WO1991008658A1/de unknown

Patent Citations (5)

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