Circuit of electronic control unit

Abstract

The invention relates to a circuit (1) of an electronic control unit, having a plurality of conductor tracks (2) which are produced in a leadframe design or in a flex film design and at least one conductor track (2) of which has a contact region (4.1) having at least one conductor track contact hole (5.1) for pressing in a contact pin (6) of a connector element (7) or of an electronic component. In order to prevent deformation of the conductor track (2) when pressing the contact pin (6) into the conductor track contact hole (5.1) in the case of a relatively low sheet thickness DLB of the conductor track (2) of 0.8 mm or less, for example, provision is made in this circuit for the contact region (4.1) of the conductor track (2) to be reinforced with an additional supporting plate (9.1), forthe supporting plate (9.1) to consist of an electrically conductive metal sheet, for the supporting plate (9.1) to cover the contact region (4) of the conductor track (2), for the supporting plate (9.1) to be provided with a supporting plate contact hole (11.1), for the supporting plate contact hole (11.1) to be arranged coaxially with respect to the conductor track contact hole (5.1), and for the supporting plate (9.1) to be arranged on one side (10) of the conductor track (2) and to be connected to the conductor track (2).

Description

technical field [0001] The invention relates to an electrical circuit of an electronic control unit with a plurality of conductor tracks produced in the form of a stamped lead frame or in the form of a flexible film, at least one of the conductor tracks having a contact area for pressing in At least one conductor track contact opening of a contact pin of the plug element or of the electronic component. Background technique [0002] In electronic control units, such as the control unit of a motor vehicle, through which relatively large currents are distributed, the conductor tracks must have correspondingly large line cross-sections. Furthermore, the control unit should take up as little structural space as possible and make optimal use of the existing structural space, which can be realized by means of a curved or bent structural form. The conductor traces of the electronic control unit's circuit are therefore often produced in a stamped lead frame construction or in a flex...

AI Technical Summary

Problems solved by technology

However, it is difficult to achieve mechanical reinforcement of the contact area of ​​the conductor traces

[0009] A known problem when equipping circuits embodied in the form of a stamped lead frame and in the form of a flexible foil is the undesired deformation of the contact area when pressing the contact pins of the plug element and of the electronic component into the associated contact holes.

This can result in unfavorable positioning of the associated components and insufficient mechanical fastening

The electrical contact between the contact holes of the conductor tracks and the contact pins of the component may also be affected thereby

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