Patent ID: 8619413

Claim:
A power supply unit for supplying a consumer with a low voltage, comprising: at least one power plug contact ( 106 , 206 ) connectable to a supply voltage; at least one output lead ( 114 , 214 ) for outputting the low voltage; a voltage transformer unit comprising at least one electronic component for transforming the supply voltage to the low voltage; wherein the power supply unit ( 100 , 200 ) comprises a casing made of a casing base element ( 102 , 202 ) and a lid element ( 102 , 202 ), and wherein the at least one power plug contact ( 106 , 206 ) is held in the casing base element ( 102 ) or in the lid element ( 204 ) in such a way that it can be plugged into a power socket, wherein the voltage transformer unit is mounted on a circuit carrier ( 108 , 208 ), which is arranged in the casing base element ( 102 , 202 ), in a plug-in direction ( 126 ) of the power plug contact ( 106 ), in such a way that a defined first region ( 128 ) of the circuit carrier ( 108 , 208 ), which is to be insulated, is received in a casting space ( 118 , 218 ) that is enclosed by walls of the casing base element ( 102 , 202 ), and wherein the casting space ( 118 , 218 ) of the casing base element ( 102 ) is filled with an electrically insulating casting compound, so that the first region ( 128 ) of the circuit carrier ( 108 ), which is to be insulated, is covered by the casting compound, while a second region ( 130 ) of the circuit carrier, on which the at least one electronic component is arranged, is not encapsulated.