Switchgear cabinet having at least one brush strip for the conductor feedthrough

Abstract

A switch cabinet with at least one brush strip for the conductor feed-through, the switch cabinet having a switch cabinet frame with a horizontal or vertical profile frame from which a profile web extends, wherein the brush strip is placed on a free end of the profile web with bristles extending from the profile web over the inner portion of the profile frame.

Claims

1. A switch cabinet comprising: a plurality of horizontal and vertical profile frames defining an exterior boundary of the switch cabinet, at least one horizontal or vertical frame of the horizontal or vertical profile frames having an exteriorly extending profile web; a first brush strip for feed-through of conductors; the first brush strip including an adapter, the adapter having a plug in receptacle, the plug in receptacle being plugged on to a free end of the exteriorly extending profile web; the adapter holding the first brush strip over an inner portion of the switch cabinet, the adapter presenting a flat sealing surface; and a flat roof panel secured to the flat sealing surface of the adapter.

2. The switch cabinet according to claim 1, further comprising a plate mounted on at least another horizontal or vertical frame of the horizontal or vertical profile frames, opposite the first brush strip, which the plate has a second brush strip that partially closes the inner portion of the switch cabinet, the second brush strip having a free edge which extends parallel to the first brush strip and butts against a free bristle butt edge of bristles of the first brush strip.

3. The switch cabinet according to claim 1 wherein bristles of the first brush strip, which extend parallel to one another, are formed integrally with the adapter.

4. The switch cabinet according to claim 3, in which the adapter is formed at least partially from a sealing material, by which ends of the bristles of the first brush strip are held.

5. The switch cabinet according to claim 3, in which the exteriorly extending profile web has a first vertical profile side facing an interior of the switch cabinet, and a second vertical profile side facing an exterior of the switch cabinet, the adapter having a stop which bears against the first or second vertical profile side.

6. The switch cabinet according to claim 5, wherein the adapter further comprises: a clamping section that is pretensioned against a side of the exteriorly extending profile web opposite the stop.

7. The switch cabinet according to claim 6, in which the adapter is formed in one piece from an elastomer or a soft plastic, wherein the stop has a material thickness which is at least 30% greater than the clamping section.

8. The switch cabinet according to claim 6, in which the clamping section has a bend at a free end of the clamping section, and wherein the exteriorly extending profile web has a run off sloping section extending exteriorly of the switch cabinet, and wherein the bend of the clamping section rests against the run off sloping section of the exteriorly extending profile web.

9. The switch cabinet according to claim 1, in which the at least one horizontal or vertical frame is a roof frame of the switch cabinet, the roof frame having a drainage slope and a horizontal gutter, the drainage slope opening into the horizontal gutter, and wherein on a side of the adapter that faces the horizontal gutter, a deflector of the adapter extends towards the drainage slope.

10. A switch cabinet comprising: a profile frame defining an upper exterior boundary of the switch cabinet, the profile frame having an upwardly extending web section, a lower part of the upwardly extending web section blending into a downwardly sloping section which terminates in a horizontal gutter; a horizontally extending brush strip having an adapter and a plurality of horizontally extending bristles connected to an interiorly facing, downwardly extending side of the adapter, the adapter including: an upper horizontal sealing surface, an undercut section that mates with the upwardly extending web section of the profile frame to plug onto the adapter the profile frame, a downwardly extending stop section engaging an interior side of the upwardly extending web section of the profile frame, and a downwardly extending clamping section pressing against an exteriorly facing side of the upwardly extending web section; and a flat roof plate having an end portion secured to the upper horizontal sealing surface of the adapter.

Description

DRAWINGS

(1) The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

(2) Further details of the invention are explained with reference to the figures below. Thereby shows:

(3) FIG. 1 a first embodiment of a switch cabinet according to the invention in a perspective view of a vertical section;

(4) FIG. 2 the embodiment according to FIG. 1 with the flat roof panel indicated; and

(5) FIG. 3 is an enlarged partial view showing the flat roof panel secured to the adapter.

DETAILED DESCRIPTION

(6) Example embodiments will now be described more fully with reference to the accompanying drawings.

(7) FIG. 1 shows an exemplary embodiment of a switch cabinet 1, in which the frame 2 and in particular the cross-section of the profile struts of the frame 2 has a geometry as known from DE 10 2015 121 192 A1. The framework 2 is characterised in that profile webs 5 and 5′ extend from the horizontal and vertical profile frames 4 of the framework 2 and are undercut, i.e. widen towards their free end.

(8) The profile webs 5 and 5′ are sealing webs which extend from the outer side of the respective profile frame 4 facing away from the switch cabinet 1 and can, for example, form a circumferentially closed profile web frame. The circumferentially closed profile web frame can be used to seal a flat part 15 (discussed later herein) with respect to the respective profile frame 4, if necessary with the aid of a sealing element which is applied, for example, to an inner side of the flat part 15 and into which the profile web 5′ presses via its free end, in order to seal the framework 2 with respect to the flat part.

(9) According to the invention, the profile web 5 is now assigned a second function in that it is used to hold a brush strip 3, which is attached to the free end of the profile web 5. Bristles 6 extend from the brush strip 3 over the inner portion of the profile frame 4. In this case, the profile frame 4 is a roof frame of the switch cabinet frame 2, which is partially closed by a roof plate 7. A complementary brush strip 10 is attached to a free longitudinal edge of the roof plate 7 so that the two brush strips 3, 10 abut each other via the free ends of their bristles and thus provide effective protection against dust and the penetration of other light objects into the interior of the switch cabinet. Although the two brush strips 3, 10 are arranged “butt to butt”, this may include, as is generally known in the prior art, the bristles of the opposing brush strips 3, 10 at least partially interlocking or overlapping.

(10) The brush strip 3 has an adapter 12 with a plug-in receptacle 13, via which the brush strip 3 is plugged onto the profile web 5, which is designed as an undercut sealing web. The adapter 12 can, for example, be made of an elastomer or a soft plastic in one piece with the bristles 6 of the brush strip 3. In particular, the bristles 6 may be moulded into the adapter 12. On the upper side, the adapter 12 has a contact surface 14 for a flat part 15 such as a flat roof panel (see FIG. 2 and FIG. 3). The contact surface 14 can in particular be a sealing surface, for which purpose the contact surface 14 and preferably the entire adapter 12 is made of a corresponding sealing material, for example an elastomer, so that when the flat part rests on the contact surface 14 and a suitable contact pressure of the flat part on the contact surface 14 is provided, the flat part 15 is effectively sealed with respect to the profile frame 4. The contact pressure can be provided, for example, by means of common flat part holders for mounting flat parts on switch cabinet frame racks.

(11) The adapter 12 has a plug-in receptacle 13 by means of which the adapter 12 is plugged onto the profile web 5. The plug-in receptacle 13 is formed as an undercut groove which extends in the longitudinal direction of the adapter and thus in the longitudinal direction of the brush strip 3. In order to achieve a defined positioning of the brush strip 3 in relation to the profile frame 4 when the brush strip is plugged onto the profile frame 4, in particular onto the profile web 5, it is provided that the plug-in receptacle has a stop 18 which abuts against a vertical profile side 16 directed towards the inner portion of the profile frame 4. Opposite the stop 18, the plug-in receptacle 13 has a clamping section 19 which, together with the stop 18, delimits the plug-in receptacle 13.

(12) The clamping section 19 can be displaced relative to the stop 18 against a mechanical pre-tension between a release position, in which the adapter 12 is released from the profile web 5, and a clamping position, in which the clamping section 19 rests against the profile web 5 and is pressed against with the pre-tension. In this case, the secure and defined pre-positioning of the brush strip 3 in relation to the profile web 5 is achieved by the fact that the plug-in receptacle 13 of the adapter 12 is formed in one piece and entirely from the same plastic material and the stop 18 has a greater material thickness than the clamping section 19. Preferably, the thickness of the stop 18 is at least 30% greater than the thickness of the clamping section 19. This ensures that when the brush strip 3 is pressed onto the profile web 5, the mechanical pretension of the plug-in receptacle 13 is absorbed by the clamping section 19, in that the clamping section 19 undergoes elastic deformation, while the stop 18 remains essentially undeformed. The pre-tension acting perpendicularly to the stop 18 in turn causes the stop 18 to be pressed against the vertical profile side 16 on the inner circumference of the profile frame 4, whereby the brush strip 3 assumes a defined position with respect to the profile frame 4.

(13) On its side extending along the outer direction of the profile frame 4, the adapter 12 has a deflector 24 which extends from an upper end of the brush strip 3, in the present case adjacent to the clamping section 19 and formed integrally therewith, towards the run-off slope 22 of the profile frame 4. The profile frame 4, which is designed as a horizontal roof frame, has a drainage slope 22 on its outer circumference adjacent to the profile web 5′, which drainage slope 22 opens into a horizontal rain gutter 23 of the roof frame.

(14) The synopsis of FIGS. 1-3 shows that the arrangement of the brush strip 3 on the profile frame 4 according to the invention makes it possible to effectively seal a flat part 15, for example in this case a roof panel of the enclosure 1, with respect to the frame 2. As has already been described with reference to FIG. 1, the brush strip 3 can be made of an elastic sealing material in the region of its adapter 12, so that a seal of the flat part 15 with respect to the profile frame 4 is achieved when the flat part 15 is pressed against the profile frame 4 via the contact surface 14 of the adapter 12.

(15) The features of the invention disclosed in the foregoing description, in the drawings as well as in the claims may be essential for the realisation of the invention both individually and in any combination.

(16) The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.