Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Stefan Gruber

Heinz Schmidt

Manuel Geitner

Klaus Behringer

Hermann Kasowski

Andreas Fritsch

Uwe Weiss

Eduard Schonberger

Hubert Kuhla

Jürgen Trottmann

Thomas Kurbjuweit

Markus Riech

Norbert Lindner

Christian Löh

A switching device includes an energy store and a measuring device connected to a control apparatus. The energy store is connected in series between the supply connection and the power supply. The control apparatus can monitor the energy supply of the switching device in the area between the supply connection and the power supply taking place via the supply connection via the measuring device. If the energy supply monitored by the measuring device falls into a critical range, and using the energy from the energy store: the control apparatus connects the semiconductor switch in an electrically conductive manner and then opens the second switch; and subsequently switches the semiconductor switch to an electrically non-conductive state and then opens the first switch.

Switching device for controlling energy supply of a downstream electric motor

An injection-molded part (1) includes elevations (2) and/or depressions (12) arranged between integrated printed conductors (4). If the elevations (2) or depressions (12) are uncoated and thus electrically insulating, they increase the effective voltage clearances between the printed conductors (4) and the components (3) arranged next to the printed conductors (4). The geometric distances can then be reduced. Alternatively, by electroconductively coating the elevations (2), electric and magnetic shielding is achieved in a simple manner. A cover (6) is provided as a top of a box which uses elevations (2) as side walls. A tapering portion (5) connects coatings (7,7') of the cover (6) and elevations (2) via a printed conductor (8) running diagonally across the tapering portion (5).

Diagonal printed conductor connecting metal coatings of two walls of a

An insulating part for an electronic device includes a first metallized outer surface capable of cooling one or more electronic components disposed on the insulating part. The insulating part also includes one or more additional metallized outer surfaces, such as a set of cooling ribs, to provide improved cooling for the electronic components. These additional outer surfaces are coupled electrically and thermally to the first metallized outer surface, and to each other by recesses containing a heat transfer element, such as a metallization or a soldered connection. Thus, heat transferred to the first outer surface is further dissipated among the several additional cooling surfaces.

Insulating part with improved heat transfer element

An insulating part for an electronic device includes a body having a metallized outer surface and a heat sink arranged within the body. The heat sink is thermally coupled to an electronic component and to the metallized outer surface, and may also be either electrically coupled or electrically isolated from the electronic component. The insulating part is preferably made of plastic by an injection-molding process, while the heat sink is preferably a metal block integrally formed within the insulating part.

Insulating part with integral cooling element

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Kummersbruck, Germany

Stefan Gruber