"Blower Fan" in particular mechanical and electrical connection portion of the servo motor drive circuit, in order to take into account the reliability of the connection and can be assembled, distinguished staff visit each other's site, after discussion with the trial repeatedly and obtain the best shape . In the embedded servo motor 3, the drive circuit and the wiring harness integrated into the module, the past are arranged in the driver's seat and the passenger seat side of the HVAC two servo motors concentrated in the driver's seat side. As a result, the volume of the servo motor associated components is reduced by about 30%.