electrical appliance

The electrical device addresses heat dissipation and mechanical support challenges by using a dual-foam structure with thermally conductive and insulating properties, ensuring efficient heat dissipation and impact protection in hot environments.

DE102012000908B4Active Publication Date: 2026-07-02SEW EURODRIVE GMBH & CO KG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
SEW EURODRIVE GMBH & CO KG
Filing Date
2012-01-19
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing electrical devices face challenges in efficiently dissipating heat and providing mechanical support while maintaining electrical insulation and impact energy absorption in hot ambient temperatures, particularly in housings made of metal or plastic.

Method used

A design incorporating a populated circuit board surrounded by two foam sections, where a first thermally conductive foam section dissipates heat and provides mechanical support, and a second foam section acts as a thermal barrier and housing, using foamed plastics with gas inclusions and ceramic materials to enhance thermal conductivity and insulation.

Benefits of technology

The design effectively dissipates heat through the first foam section, provides mechanical support and insulation, and offers high impact energy absorption, while maintaining a lightweight and protective housing structure.

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Abstract

Electrical device comprising a populated circuit board and at least two foam sections, characterized in that a first foam section at least partially surrounds the circuit board, wherein a further foam section at least partially surrounds the first foam section in a housing-forming manner, wherein the specific thermal conductivity of the further foam section is smaller than that of the first foam section, in particular at least ten times smaller, wherein one or more heat-generating components are mounted on the circuit board, wherein the foam sections are positively connected to one another, in particular by screws or by means of a clip connection, wherein the electrical device can be screwed to a mounting part, in particular a metallic mounting part, wherein the screws introduce a contact force into one or the foam part, wherein at least one connector part is mounted on the circuit board.which protrudes from one or the first foam part, especially for connection with a mating connector part.
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