US 12,245,398 B2
Control-cabinet system having a base module and a functional module, base module and functional module
Hans Beckhoff, Verl (DE); Peter Wittenborg, Verl (DE); and Daniel Siegenbrink, Bielefeld (DE)
Assigned to Beckhoff Automation GmbH, Verl (DE)
Filed by Beckhoff Automation GmbH, Verl (DE)
Filed on Jan. 5, 2023, as Appl. No. 18/150,348.
Application 18/150,348 is a continuation of application No. PCT/EP2021/071772, filed on Aug. 4, 2021.
Claims priority of application No. 10 2020 120 918.5 (DE), filed on Aug. 7, 2020.
Prior Publication US 2023/0142990 A1, May 11, 2023
Int. Cl. H05K 7/20 (2006.01); H05K 7/14 (2006.01)
CPC H05K 7/20209 (2013.01) [H05K 7/1465 (2013.01); H05K 7/20409 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A control-cabinet system having:
a base module, and
at least a functional module,
the base module comprising:
a base housing with a first housing face and a second housing face;
a plurality of base connection elements with base voltage connections and base data connections are arranged on the first housing face,
at least one data line configured as a data bus, the at least one data line having a plurality of switch-on units configured as a subscribers of the data bus, which is connected to the base data connections of the base connection elements via the at least one data line, is arranged in the base housing and at least one voltage line is arranged in the base housing which is connected to the base voltage connections of the base connection elements,
the functional module comprises:
a functional housing with a housing underside, wherein a functional connection element with voltage connections and data connections is arranged on the housing underside,
at least one electronic functional circuit, which is connected to the voltage connections and the data connections of the functional connection element, is arranged in the functional housing,
wherein the functional module is connectable to the base module via a coupling of the functional connection element to one of the base connection elements to achieve a connection of the voltage connections and the data connections of the functional connection element to the base voltage connections and the base data connections of the base connection elements,
wherein a circulation channel is arranged in the base housing for circulating a flow of air in the circulation channel,
wherein each of the base connection elements comprises circulation openings which are fluidically connected to the circulation channel,
wherein the functional connection element has coupling openings fluidically connected to an interior of the functional housing, wherein the coupling openings are coupleable to the circulation openings, and wherein the coupling openings comprises a first coupling opening and a second coupling opening, and
wherein, in a coupling of the coupling openings with the circulation openings, a fluidic connection exists between the circulation channel and the interior of the functional housing and a fluidically closed circulation circuit comprising the circulation channel and the interior of the functional housing is formed, in which the flow of the air is circulated by the air entering into the interior of the functional housing from the circulation channel via the first coupling opening and flowing back into the circulation channel from the interior of the functional housing via the second coupling opening.