Protective case for combination ignition coil and electronic control

US4928660A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gerhard Sohner · Schorndorf, DE
• Helmut Roth · Stuttgart, DE
• Hartmut Brammer · Leinfelden, DE
• Richard Schleupen · Großingersheim, DE
• Karl-Heinz Nubel · Schwieberdingen, DE

Key dates

• Filing date: Mar 23, 1989
• Grant date: May 29, 1990
• Expiry date: Mar 23, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P7/025
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A protective case (13) for a vehicle ignition system covers both the ignition coil (5), an electronic control device (6), and the terminals (11) and connecting conductors (12) therebetween. The preferred material is plastic, with an electromagnetically conducting coating for screening against incoming and outing electromagnetic noise. Thus, protection is provided against mechanical, chemical, and electromagnetic environmental influences. The case is dimensioned to snap over and seal respective edges of the electronic control device (6), the ignition coil (5) and its core (8), the electrical terminals (11), and the interconnecting conductors (12). The case is bifurcated along an access slit (16) which is secured in a normally closed position by knob (15) which press-fits into a mating hole on the other side of the slit. Two sides of the case have curved ridges or dimples which provide flexibility to hinge the case open for insertion of the ignition coil (5) and electronic control device (6).