Method for manufacturing an electrical heating device

摘要

The device has flow circulation chamber enclosed by housing. Several heating ribs are connected to positive temperature coefficient heating element. A structural unit control unit with printed circuit board is accommodated in control housing. The control housing has control housing frame surrounding printed circuit board, which is made of metallic material. The pressure force produced on the circuit board is bare by compressible compression element (104) positioned at control housing frame. An independent claim is included for method for manufacturing electrical heating device.