Environmentally protected electronic network structure and housing combination

US4409641A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gert Jakob · Stuttgart, DE
• Willi Gansert · Kornwestheim, DE
• Siegfried Goetzke · Bietigheim-Bissingen, DE
• Lothar Ruttkowski · Ludwigsburg, DE

Key dates

• Filing date: May 12, 1981
• Grant date: Oct 11, 1983
• Expiry date: May 12, 2001

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K7/20854
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

To provide for simplified and less expensive manufacture without extensive insulation of internal components of a control system with respect to the housing, particularly for electronic ignition and fuel injection control systems, digital and other automotive control electronic systems and the like, a housing (1) of insulating plastic material has a connecting portion (2, 3) integrally formed therewith, which further include, integrally formed therewith, holding and engagement catches and slits (13, 15, 17-23; 62, 69) for a printed circuit board (41) carrying electronic network elements (42) such as transistors, capacitors, resistors, in integrated circuit form, or as discrete elements; and further a cooling device (24, 25; 56; 64; 73) in heat-conductive relationship to a power stage (43; 54; 65; 74) to dissipate heat generated within the power stage, and to transfer the heat over a large area surface connection either to a structural component carrying the entire control unit and/or to a sheet metal cover (49) snapped and crimped over the plastic housing (1) and, in sealed relation, closing off the entire structural unit.