SUBRACKS

Abstract

A subrack (10) is provided with a housing (11) surrounding an interior space (20), wherein the housing (11) has an inner surface (12) facing the interior space (20) and an outer surface (13) facing outwards. According to the invention, the housing (11) is designed such that the inner surface (12) and the outer surface (13) are electrically insulated from one another.

Description

[0001] The present invention relates to a subrack according to the preamble of claim 1, as well as a control cabinet with this subrack.

[0002] Subracks are known in the prior art. For example, DE 4200836 C1 discloses a housing for installing modular installation devices. Two side walls are connected to one another by means of a rear wall provided with an entry opening. Outward-facing mounting flanges are formed on the front edges of the side walls. Adjustable and fixable mounting brackets with opposing mounting flanges are mounted perpendicular to the rear wall on the facing inner sides of the side walls. A mounting rail for attaching the modular installation devices is attached to the mounting flanges of the mounting brackets. A U-shaped cover covers the open space between the side walls on three sides.

[0003] The invention is based on the object of providing an improved subrack.

[0004] This object is achieved with a module carrier according to claim 1 and a control cabinet according to claim 6. Advantageous developments of the invention are specified in the subclaims.

[0005] In the module carrier according to the invention with a housing surrounding an interior space, which has an inner surface facing the interior space and an outer surface facing outwards, the housing is designed according to the invention in such a way that the inner surface and the outer surface are electrically insulated from one another.

[0006] This advantageously provides a subrack from whose interior no electrical potential can be transferred to the outside. The subrack according to the invention can be used to produce reinforced or double insulation. The subrack is advantageously suitable for requirements of Protection Class II.

[0007] In an advantageous embodiment of the subrack according to the invention, the subrack comprises two brackets for attaching the subrack to a rack. The brackets are preferably designed for a 19" rack.

[0008] This makes the subrack compatible with commonly used standardized components. The subrack according to the invention is therefore versatile and can easily replace conventional subracks.

[0009] In a further advantageous embodiment of the module carrier according to the invention, the housing is made of a plastic.

[0010] This provides electrical insulation between the inner and outer surfaces in a simple and cost-effective manner.

[0011] In a further advantageous embodiment of the subrack according to the invention, the subrack comprises a support rail arranged in the interior.

[0012] This allows for easy arrangement and securing of modular devices in the subrack. Commercially available modular devices can be used, which advantageously increases the compatibility of the subrack according to the invention.

[0013] In a further advantageous embodiment of the subrack according to the invention, the subrack comprises receiving elements for receiving the support rail, wherein the receiving elements are formed integrally with the housing.

[0014] This reduces the number of individual parts in the subrack, making handling easier.

[0015] The switch cabinet according to the invention with a cabinet housing surrounding a cabinet interior and a rack arranged in the cabinet interior comprises, according to the invention, a module carrier according to the invention fastened to the rack.

[0016] The advantages of the module carrier according to the invention thus benefit the control cabinet.

[0017] Further advantages of the present invention will become apparent from the detailed description and the figures. The invention is explained in more detail with reference to the figures and the following description. They show: Fig. 1 shows a first view of a subrack according to the invention in an exemplary embodiment; Fig. 2 the subrack in a second view; and Fig. 3 a control cabinet according to the invention in an exemplary embodiment.

[0018] In the Fig. 1 and Fig. Figure 2 schematically illustrates the subrack 10 according to the invention in an exemplary embodiment, each in a view. The subrack 10 has a housing 11 surrounding an interior space 20. Fig. 1 shows the subrack 10 without a cover 19 with a view into the interior 20. The Fig. 2 shows the subrack 10 from a different perspective with the cover 19.

[0019] The module carrier 10 according to the invention is designed for installation in a rack 33, which is in particular a 19" rack. For this purpose, the housing 11 is preferably provided with holders 14. The holders 14 have in particular fastening elements 15, in particular cutouts or holes that correspond to those of the rack 33. By means of the holders 14, the module carrier 10 can be mounted on the rack 33, which is arranged in particular in a control cabinet 30. In this way, it is in the Fig. 3 outlined.

[0020] The subrack 10 according to the invention has the housing 11. The housing 11 surrounds the interior space 20. The entire surface of the housing 11 facing the interior space 20 is defined here as the inner surface 12. The entire surface of the housing 11 facing outwards is defined here as the outer surface 13. Thus, the inner surface 12 borders the interior space 20. The cover 19 is a component of the housing 11 that can be removed from the rest of the housing. The interior space 20 is accessible through the removable cover 19. The cover 19 can be releasably fixed to the rest of the housing 11, for example by means of plastic screws. In the illustrated embodiment, the cover 19 has an L-shape and opens the housing 11 on two sides. It is also possible for the cover 19 to have a U-shape and open the housing on three sides. In addition, it is also possible for the cover 19 to open the housing 11 on one side, four or five sides.The cover 19 can also be constructed in several parts.

[0021] The cover 19 preferably includes a recess 21 for DIN rail-mounted devices. As is customary, the recess 21 can be closed with cover strips at the locations where no DIN rail-mounted device is located.

[0022] According to the invention, the inner surface 12 and the outer surface 13 are electrically insulated from each other. The inner surface 12 and the outer surface 13 are therefore not electrically connected to each other.

[0023] For this purpose, the housing 11 is preferably made of an electrically insulating material, preferably a plastic, at least on the inner surface 12. In particular, the entire housing 11 is made of plastic, in particular PVC.

[0024] In alternative embodiments, the housing 11 is constructed, at least in some regions, from multiple layers, wherein at least the layer on which the inner surface 12 is formed is made of an electrically insulating material. In particular, the layer on which the outer surface 13 is formed is also made of a metal. Likewise, the holders 14, in particular, are made of a metal. In a further alternative embodiment, the housing 11 is formed from a metal frame and a plastic core, wherein the interior space 20 is formed in the plastic core.

[0025] The subrack 10 is preferably designed to accommodate so-called modular devices. For this purpose, the subrack 10 preferably has at least one support rail 17 arranged in the interior space 20.

[0026] The modular modules can be positioned on the support rail 17. The support rail 17 is preferably a top-hat rail. The subrack 10 can also have multiple support rails 17.

[0027] To accommodate the support rail 17, the subrack 10 preferably has two receiving elements 16. The receiving elements 16 are arranged opposite one another in the interior space 20. The support rail 17 is fixed by means of the receiving elements 16. The receiving elements 16 are in particular formed integrally with the housing 11. Alternatively, the receiving elements 16 are glued to the housing 11 and / or screwed or clicked into the housing 11.

[0028] The housing 11 of the subrack 10 preferably has at least one opening 18. The opening 18 serves to pass through at least one cable. The subrack 10 also preferably includes a strain relief (not shown) for the at least one cable. The strain relief directs tensile forces acting on the cable into the housing 11.

[0029] The subrack 10 is preferably designed for a voltage range up to 1000 V. The subrack 10 is preferably dimensioned for 19" systems.

[0030] The switch cabinet 30 according to the invention, which is shown in the Fig.3, comprises a cabinet housing 31, which surrounds a cabinet interior 32, and the rack 33, which is arranged in the cabinet interior 32. The cabinet housing 31 and the rack 33 are each prior art. The cabinet housing 31 and the rack 33 are, in particular, electrically connected to one another. The cabinet housing 31 has a connection point for potential equalization for grounding the control cabinet 30. According to the invention, the previously described subrack 10 is arranged in the cabinet interior 32. The subrack 10 is fastened to the rack 33 by its holders 14. List of reference symbols: 10 subracks 11 housings 12 inner surface 13 Exterior area 14 Bracket 15 Fastening element 16 receiving element 17 Support rail 18 Opening 19 Cover 20 Interior 21 recess 30 control cabinet 31 cabinet housings 32 Cabinet interior 33 racks QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

[0000] DE 4200836 C1

[0002]

Claims

[1] Subrack (10) with a housing (11) surrounding an interior space (20), wherein the housing (11) has an inner surface (12) facing the interior space (20) and an outer surface (13) facing outwards, characterized by that the housing (11) is designed in such a way that the inner surface (12) and the outer surface (13) are electrically insulated from one another. [2] Subrack (10) according to claim 1, wherein the subrack comprises two brackets (14) for fastening the subrack (10) to a rack (33). [3] Subrack (10) according to one of the preceding claims, wherein the housing (11) is made of a plastic. [4] Subrack (10) according to one of the preceding claims, wherein the subrack (10) comprises a support rail (17) arranged in the interior space (20). [5] Subrack (10) according to claim 4, wherein the subrack has receiving elements (16) for receiving the support rail (17), which are formed integrally with the housing (11). [6] Switch cabinet (30) with a cabinet housing (31) surrounding a cabinet interior (32) and a rack (33) arranged in the cabinet interior (32), characterized by that a module carrier (10) according to one of the preceding claims is attached to the rack (33).

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