Circuit Board Assembly

A circuit board assembly for a control unit of a motor vehicle, the assembly comprising:

• a multi-layer circuit board and a plug connector with a housing faceplate;
• said circuit board having optical conductor paths for conducting optical signals and/or electrical conductor paths for conducting electrical signals, said circuit board having a panel-shaped first section, a panel-shaped second section, and a flexible third section formed between said first and second sections, said third section having a lower stiffness than said first and second sections, and said third section mechanically and electrically connecting said first and second sections such that a first panel central plane of said first section encloses an angle φ with a second panel central plane of said second panel section;
• said plug connector having a multiplicity of connection elements each with an attachment part and at least one contact pin, said attachment parts being arranged in a common enclosure that projects out of said housing faceplate, and each said at least one contact pin being electrically and mechanically connected to said second section;
• said housing faceplate having first and second panel-shaped side elements, said side elements having panel central planes each enclosing an angle β with the first panel central plane and an angle γ with the second panel central plane;
• at least one of said first or second side elements having a first detent element configured to lock said housing faceplate on said first section of said circuit board and to compensate for restoring forces of said third section to prevent a change in the angle φ in a first direction of rotation;
• and
• at least one of said first or second side elements having a second detent element configured to prevent a change in the angle φ in a second direction of rotation.