Patent ID: 10654066

Abstract:
The present inventions relate to an improved paint booth for drying water-based and solvent-based coatings applied to a vehicle. The paint booth provides a flash cycle for drying water-based coatings. The paint booth has an enclosure in which the vehicle may be placed, the enclosure having intake and exhaust outlets for an airflow. The paint booth also has one or more blower assemblies, the one or more blower assemblies for supplying the airflow in the intake. Each of said one or more blower assemblies includes a blower and a first three-phase AC motor. The first AC motor being controlled by a variable frequency drive controller. The paint booth also has one or more exhaust fan assemblies, the exhaust fan assembly including a fan and a second three-phase AC motor. The second AC motor is controlled by a variable frequency drive controller. All of the at least one exhaust fan assemblies provide an airflow substantially equal to the airflow provided by the one or more blower assemblies with a slightly positive pressure in the enclosure during drying. Each of the controllers controlling the AC motors use lower frequencies to provide the desired airflow through the enclosure through the intake and exhaust outlets at no more than 85% of the maximum power output.