Printed circuit board and method for manufacturing a solderless electrical connection

Abstract

The invention relates to a circuit board (2), which has a plurality of sockets (8) for accommodating pins (10), the pins (10) can be connected by the broad side (12) of the circuit board (2) The interference fit is inserted into the through hole of the socket (8). The invention provides that the part of the broad side (12) of the circuit board (2) is coated with an insulating protective layer (40, 46), which has a Through holes (42,48) on the through hole (18) of the plug sleeve (8).

Description

technical field [0001] The invention relates to a circuit board according to the preamble of claim 1 , which circuit board has a plurality of sockets for receiving pins, and a circuit board according to the preamble of claim 8 for use in circuits equipped with sockets. A method of making a solder hole-free electrical connection between a board and a pin-mounted component. Background technique [0002] In automotive technology, the safe and reliable operation of control devices is of great importance, e.g. in the electronic control of airbags or seat belt retractors, in the control of the anti-lock braking system (ABS) or in the control of driving dynamics (ESL), as well as motor control units and transmission control units, in order to make a high-quality electrical connection between the circuit board and the electronic components mounted on the circuit board, plug-in connections are increasingly used, in which the components are integrated Two or more rows of protruding p...

AI Technical Summary

Problems solved by technology

[0004] In the case of a plug-in connection, exceeding the permissible pin position tolerances in a plane parallel to the broad side of the circuit board can therefore result in: the individual contacts are either displaced laterally or cannot be inserted at all into the through-holes of the corresponding socket on the circuit board Inside, this may cause damage to the copper layer of the socket surrounding the entrance of the through-hole solder eye on the component side, the cylindrical shell part of the socket that passes through the circuit board used for contacting the through-hole Damage to the copper layer of the circuit board, damage to the copper layer of the printed wire connected to the solder eye on the adjacent broadside of the component on the circuit board, or lateral bending of the pin itself

In addition, material may come off in the form of splinters or chips on the pins or sockets, which, under unfavorable conditions at the rest of the circuit board, can lead to short circuits and thus to malfunctions

[0005] In order to avoid such errors when installing and making circuit boards, after the insertion and connection are manufactured, in addition to the electronic contact inspection, the circuit board must also be visually inspected to use circuit boards with damaged connections or bent pins as Rejection, because when there is no electrical contact between the bent pin and the solder eye of the socket, although it will be recognized during the contact test, it will be recognized when it is loosely placed on the solder eye. does not come out, and this will also cause failures in subsequent runs

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