| 摘要 |
An extruded aluminum electrical circuit component carrier on which at least one electrical circuit component is to be mounted. A first side portion and a second side portion include areas for mounting at least one first electrical circuit component part and at least one second electrical circuit component part. An inlet to which an inlet conduit for a cooling liquid can be connected. An outlet to which an outlet conduit for the cooling liquid can be connected. At least one supply passage for the cooling liquid formed through the first side portion. At least one return passage for the cooling liquid formed through the second side portion. The at least one supply passage is connected to the at least one return passage in series. An area of a cross-section of the at least one return passage is smaller than an area of a cross-section of the at least one supply passage, whereby in use a flow velocity of the at least one return passage exceeds a flow velocity of the at least one supply passage so that an essentially uniform cooling capacity for the first and second electrical circuit component parts is achieved.
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