Electronic assembly for transmission control module and method of making the same

Abstract

A method for producing an electronic assembly (5), in particular an electronic assembly (5) for a gearbox control module, is specified, the method comprising the steps of: providing a printed circuit board (10) having a first A side (12) and a second side (14) facing away from the first side (12) and having at least one first electronic component (70) arranged on the first side (12) of the printed circuit board (10) ; the printed circuit board ( 10 ) is at least partially arranged on the reference surface ( 40 ) with the second side ( 14 ); applying a sealing material ( 50 ) which is substantially non-flowable before age hardening to the first side ( 12), wherein the sealing material (50) is coated such that the sealing material (50) surrounds a partial area (20) of the first side (12) of the printed circuit board (10); the second device (80 ) is at least partially arranged on the reference surface (40), so that the second device (80) is partially pressed into the sealing material (50); the second device (80) is electrically connected to the printed circuit board (10); applying a covering material (60), in particular a covering material (60) that is flowable before age hardening, to the first side (12) of the printed circuit board (10) The partial area (20) surrounded by the sealing material (50) is applied to the first component (70); the sealing material (50) is age-hardened; and the covering material (60) is age-hardened.

Description

technical field [0001] The invention relates to a method for producing an electronic assembly, in particular for a transmission control module, and an electronic assembly, in particular for a transmission control module. Background technique [0002] Various electronic assemblies are known. The electronic assembly must be sealed against oil, for example if it is part of a transmission control module, since the transmission control module is in an oil environment. The electronic assembly typically includes a printed circuit board having electronic devices disposed thereon. [0003] Larger individual components, such as sensors, are partially not arranged on the printed circuit board, but are electrically connected to the printed circuit board. Since the oil often contains electrically conductive particles, electrical insulation is necessary both for the components and for the electrical connections between large individual components that are not (completely) arranged on th...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages in this regard are the transmission control module with electronic components or the electronic components are not so stable or robust and have high production costs and high production expenditures

In addition, often mechanical stresses can occur between the large individual components and the printed circuit board, as a result of which the service life or tightness of the gearbox control module or electronic components is reduced

Furthermore, often due to the thickness tolerances of the printed circuit boards it is possible to place the electronic components only very imprecisely in height, which can cause problems especially in the case of sensors

Images