Compressors may include a compressor housing having a compression chamber defined within the compressor housing. The compression chamber is preferably arranged and constructed to compress and discharge a fluid drawn into the compression chamber. A unit housing may be coupled to the compressor housing. A control device may be disposed within the unit housing and the control device preferably controls electric components of the compressor. Further, a suction passage is preferably defined to introduce the fluid into the compression chamber. The suction passage preferably penetrates through the unit housing so as to directly cool the control device due to the fluid flowing through the suction passage.